WO2018205574A1 - 显示面板、显示设备及补偿方法 - Google Patents

显示面板、显示设备及补偿方法 Download PDF

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Publication number
WO2018205574A1
WO2018205574A1 PCT/CN2017/114398 CN2017114398W WO2018205574A1 WO 2018205574 A1 WO2018205574 A1 WO 2018205574A1 CN 2017114398 W CN2017114398 W CN 2017114398W WO 2018205574 A1 WO2018205574 A1 WO 2018205574A1
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WIPO (PCT)
Prior art keywords
sensing
display panel
sub
pixel
transistor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
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PCT/CN2017/114398
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English (en)
French (fr)
Inventor
林奕呈
李全虎
盖翠丽
王雨
朱明毅
黄建邦
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BOE Technology Group Co Ltd
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BOE Technology Group Co Ltd
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Filing date
Publication date
Application filed by BOE Technology Group Co Ltd filed Critical BOE Technology Group Co Ltd
Priority to EP17899219.4A priority Critical patent/EP3624102B1/en
Priority to US15/781,937 priority patent/US20190035334A1/en
Priority to JP2018550568A priority patent/JP7320946B2/ja
Priority to EP25151024.4A priority patent/EP4546326A1/en
Publication of WO2018205574A1 publication Critical patent/WO2018205574A1/zh
Anticipated expiration legal-status Critical
Priority to US16/839,580 priority patent/US11170718B2/en
Priority to JP2022080892A priority patent/JP7405901B2/ja
Ceased legal-status Critical Current

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    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
    • G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
    • G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
    • G09G3/3225—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix
    • G09G3/3233—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix with pixel circuitry controlling the current through the light-emitting element
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    • G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
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    • G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
    • G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
    • G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
    • G09G3/3266—Details of drivers for scan electrodes
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    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
    • G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
    • G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
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Definitions

  • Embodiments of the present disclosure relate to a display panel, a display device, and a compensation method.
  • organic light-emitting diode (OLED) display panels have the characteristics of self-luminous, high contrast, low power consumption, wide viewing angle, fast response, flexible panel, wide temperature range, and simple manufacturing. Prospects.
  • the organic light emitting diode (OLED) display panel can be applied to a device having a display function such as a mobile phone, a display, a notebook computer, a digital camera, an instrument meter, and the like.
  • At least one embodiment of the present disclosure provides a display panel including: a plurality of sub-pixels arranged in a plurality of rows and columns, each of the sub-pixels including a pixel circuit; and pixels of the plurality of sub-pixels a plurality of sensing driving lines respectively connected to the circuit; and a sensing driver connected to the plurality of sensing driving lines.
  • the pixel circuit includes a light emitting element, the sensing driver configured to sense electrical parameters of a light emitting element of a pixel circuit of the plurality of sub-pixels through the plurality of sensing driving lines, and configured to be according to the electrical
  • the parameter generates a compensation signal and transmits the compensation signal to the pixel circuits of the plurality of sub-pixels through the plurality of sensing drive lines.
  • a display panel further includes a plurality of data lines connected to pixel circuits of the plurality of sub-pixels, each of the data lines being connected to the pixel circuits of at least two sub-pixels in the same row.
  • the display panel further includes a plurality of gate lines connected to the pixel circuits of the plurality of sub-pixels, and the pixel circuits of the sub-pixels of each row are connected to the same one of the gate lines.
  • the pixel circuits of the sub-pixels of each column are the same One of the sensing drive lines is connected.
  • the plurality of data lines extend in the same direction as the plurality of sensing driving lines.
  • only the data lines or only the sensing driving lines are disposed between the pixel circuits of the two sub-pixels.
  • the plurality of data lines are formed in the same layer as the plurality of sensing driving lines.
  • the pixel circuits of the 2n-1 column sub-pixel and the pixel circuit of the 2n-th column sub-pixel are connected to the same data line, and n is an integer greater than 0.
  • the pixel circuit further includes: a light emitting driving circuit configured to drive the light emitting element to emit light while in operation; and a sensing driving control circuit configured to control the sensing The driving line is connected and disconnected from the light emitting driving circuit in the pixel circuit.
  • the light emitting driving circuit includes a first transistor, a second transistor, and a storage capacitor.
  • the first pole of the first transistor is connected to the first power line to receive the first power voltage
  • the gate of the first transistor is connected to the first node
  • the second pole of the first transistor is connected to the second node
  • a first pole of the second transistor is connected to the data line to receive a data signal
  • a gate of the second transistor is connected to the gate line to receive a gate driving signal
  • a second pole of the second transistor is The first node is connected; the first end of the storage capacitor is connected to the first node, and the second end of the storage capacitor is connected to the second node.
  • the sensing driving control circuit includes a third transistor, a first pole of the third transistor is connected to a second node, and a gate and a sensing driving of the third transistor are The control line is connected to receive a sense drive control signal, and the second pole of the third transistor is coupled to the sense drive line.
  • a display panel further includes: a data driver configured to provide a data signal to the pixel circuit; and a scan driver configured to provide a gate drive signal to the pixel circuit.
  • the light emitting element is an organic light emitting diode
  • the electrical parameter is an emission current or a light emitting voltage of the light emitting diode
  • the compensation signal is a compensation voltage or a compensation current.
  • At least one embodiment of the present disclosure provides a display device including any of the display panels described above.
  • At least one embodiment of the present disclosure provides a compensation method of any of the display panels described above, including: sensing an electrical parameter of the light emitting element through the sensing driving line; generating a compensation signal according to the electrical parameter And transmitting the compensation signal to the pixel circuit through the sensing drive line.
  • the method before sensing the electrical parameters of the light-emitting element, the method further includes transmitting a data signal to the pixel circuit through the data line.
  • FIG. 1 is a schematic diagram of a display panel according to an embodiment of the present disclosure
  • FIG. 2 is a schematic diagram of a connection relationship of pixel circuits in area A of FIG. 1 according to an embodiment of the present disclosure
  • FIG. 3 is a second schematic diagram of a connection relationship of pixel circuits in area A of FIG. 1 according to an embodiment of the present disclosure
  • FIG. 4 is a third schematic diagram of a connection relationship of pixel circuits in area A of FIG. 1 according to an embodiment of the present disclosure
  • FIG. 5 is a schematic diagram of a pixel circuit in a display panel according to an embodiment of the present disclosure
  • 6A is a second schematic diagram of a pixel circuit in a display panel according to an embodiment of the present disclosure.
  • 6B is a schematic diagram of a pixel circuit in a display panel according to an embodiment of the present disclosure.
  • FIG. 7 is a schematic diagram of sensing a current flowing through a first transistor in the pixel circuit shown in FIG. 6A;
  • FIG. 8 is a schematic diagram of sensing an illuminating voltage of an organic light emitting diode in the pixel circuit illustrated in FIG. 6A; FIG.
  • FIG. 9 is a schematic diagram of a display device according to an embodiment of the present disclosure.
  • FIG. 10 is a flowchart of a compensation method according to an embodiment of the present disclosure.
  • FIG. 11 is a second flowchart of a compensation method according to an embodiment of the present disclosure.
  • threshold voltages of driving transistors in respective pixel circuits may differ from each other due to a fabrication process, and driving transistors may be affected by, for example, temperature variations.
  • the threshold voltage also causes drift. Therefore, the difference in threshold voltages of the respective driving transistors may also cause the display panel to be unevenly displayed. Therefore, it is necessary to compensate the threshold voltage of the driving transistor.
  • the threshold compensation of the driving transistor in the pixel circuit can be realized by sensing the light emitting current or the light emitting voltage of the organic light emitting diode.
  • the above compensation method it is necessary to set a sensing line, and a parasitic capacitance is generated between the sensing line and other lines (such as a gate line or a data line), thereby increasing the RC load of the circuit and reducing the sensing speed, thereby It is easy to cause insufficient sensing time.
  • the aperture ratio of the display panel affects the brightness of the display, and therefore, how to increase the aperture ratio of the display panel is also a problem to be solved.
  • the display panel, the display device, and the compensation method provided by at least one embodiment of the present disclosure can increase the aperture ratio and reduce the parasitic capacitance by sharing the data lines by adjacent pixel circuits, and can also complete the illumination of the organic light emitting diode by multiplexing the sensing driving lines. Sensing of current or illuminating voltage and compensation of threshold voltage drift of the drive transistor.
  • At least one embodiment of the present disclosure provides a display panel including: a plurality of sub-pixels arranged in a plurality of rows and columns, each of the sub-pixels including a pixel circuit; and a pixel circuit of the plurality of sub-pixels a plurality of sensing driving lines respectively connected; and connecting to the plurality of sensing driving lines Sensing driver.
  • the pixel circuit includes a light emitting element, the sensing driver configured to sense electrical parameters of a light emitting element of a pixel circuit of the plurality of sub-pixels through the plurality of sensing driving lines, and configured to be according to the electrical
  • the parameter generates a compensation signal and transmits the compensation signal to the pixel circuits of the plurality of sub-pixels through the plurality of sensing drive lines.
  • At least one embodiment of the present disclosure provides a display panel including: a plurality of sub-pixels arranged in an array, each sub-pixel including a pixel circuit; a sensing driving line connected to the pixel circuit; and at least two in the same row a data line connected to the pixel circuit; and a sensing driver connected to the sensing driving line.
  • the pixel circuit includes an organic light emitting diode
  • the sensing driver is configured to sense an emission current or a light emitting voltage of the organic light emitting diode through the sensing driving line
  • the sensing driver is further configured to generate a compensation voltage according to the light emitting current or the light emitting voltage, and pass the sense
  • the test drive line transmits a compensation voltage to the pixel circuit.
  • sensing the light-emitting current of a light-emitting element refers to sensing a light-emitting current that is about to flow or is flowing through the organic light-emitting diode
  • sensing the light-emitting voltage of the light-emitting element refers to The voltage of the anode when the organic light emitting diode emits light is sensed.
  • the display panel is an organic light emitting diode display panel.
  • the light emitting element may be other electroluminescent elements, such as inorganic light emitting diodes.
  • FIG. 1 is a schematic diagram of a display panel provided by at least one embodiment of the present disclosure.
  • FIG. 2 is a schematic diagram of a connection relationship of pixel circuits in area A of FIG. 1 according to an embodiment of the present disclosure.
  • the display panel 10 provided by the embodiment of the present disclosure includes a plurality of sub-pixels arranged in an array, and the sub-pixels are arranged in a plurality of rows and columns; and, the sub-pixels may be arranged in a regular manner.
  • Rows and columns that is, sub-pixels in the row direction and column direction are aligned with each other, and may also be arranged as irregular rows and columns.
  • two adjacent rows or adjacent columns may be shifted from each other by a predetermined distance (for example, half a sub-
  • the pixel width or height is not limited by the embodiment of the present disclosure.
  • Each sub-pixel includes a pixel circuit 100 that includes a light emitting element, such as an organic light emitting diode.
  • the display panel 10 further includes a data driver 11, a sensing driver 12, a scan driver 13, a data line Data, a gate line Gate, and a sensing driving line Se.
  • a plurality of data lines Data are parallel to each other and longitudinally extended
  • a plurality of gate lines Gate are parallel to each other and laterally extended
  • a plurality of sensing driving lines Se are parallel to each other and extend in the longitudinal direction.
  • the data driver 11 is configured to provide a data signal to the pixel circuit 100; sensing drive The device 12 is configured to sense an electrical parameter of a light emitting element (eg, an organic light emitting diode), such as a light emitting current or a light emitting voltage of the light emitting element, by sensing the driving line Se, and the sensing driver 12 is further configured to sense according to the sensing The resulting illuminating current or illuminating voltage generates a compensation signal and transmits the compensation signal to the pixel circuit 100 through the sensing driving line Se, for example, a compensation current or a compensation voltage; the scan driver 13 is configured to provide a gate to the pixel circuit 100 Pole drive signal.
  • a light emitting element eg, an organic light emitting diode
  • each data line Data is connected to the pixel circuit 100 of at least two sub-pixels in the same row and the data driver 11, and the data driver 11 is configured to provide the pixel circuits 100 of at least two sub-pixels in the same row through the same data line Data.
  • Data signal is configured to provide the pixel circuits 100 of at least two sub-pixels in the same row through the same data line Data.
  • the pixel circuit 100 of each column of sub-pixels may be connected to the same sensing driving line Se, and the sensing driver 12 may pass through one sensing driving line Se, for example, in a time sharing manner.
  • Sensing the electrical parameters (emission current or luminescence voltage) of the illuminating elements in the pixel circuit 100 of a column of sub-pixels the sensing driver 12 may also generate a compensation signal (eg, a compensation current or a compensation voltage) according to the sensed electrical parameters, and pass The sensing drive line Se transmits the compensation signal to the column pixel circuit 100, for example, in a time sharing manner, thereby controlling the light emission intensity of the light emitting element.
  • a compensation signal eg, a compensation current or a compensation voltage
  • the data driver 11, the sense driver 12, and the scan driver 13 may each be implemented by an application specific integrated circuit chip, or may be implemented by circuitry or by software, hardware (circuit), firmware, or any combination thereof.
  • the data driver 11 and the sense driver 12 can be implemented by the same integrated circuit chip;
  • the scan driver 13 is implemented by a GOA (gate on array) gate drive circuit, thereby being directly mountable on the display panel
  • the scan driver 13 can also be electrically connected to the gate line or the like by an integrated circuit chip and then by a circuit board (for example, a flexible circuit board).
  • the sense driver 12 can include a processor, a memory.
  • the processor may process the data signals, and may include various computing structures, such as a Complex Instruction Set Computer (CISC) structure, a Structured Reduced Instruction Set Computer (RISC) structure, or a combination of multiple instruction sets. Structure.
  • the processor can also be a microprocessor, such as an X86 processor or an ARM processor, or can be a digital processor (DSP) or the like.
  • DSP digital processor
  • the processor can control other components to perform the desired functions.
  • the memory may hold instructions and/or data executed by the processor.
  • the memory can include one or more computer program products, which can include various forms of computer readable storage media, such as volatile memory.
  • the volatile memory may include, for example, a random access memory (RAM) and/or a cache or the like.
  • the nonvolatile memory may include, for example, a read only memory (ROM), a hard disk, a flash memory, or the like.
  • One or more computer program instructions can be stored on the computer readable storage medium, and the processor can execute the program instructions to implement a desired function (implemented by a processor) in an embodiment of the present disclosure.
  • Various applications and various data may also be stored in the computer readable storage medium, such as various data used and/or generated by the application, and the like.
  • the display panel 10 may further include a controller (not shown) that is signally coupled to the data driver 11, the sensing driver 12, and the scan driver 13, and configured to the data driver 11, the sensing driver 12 And the scan driver 13 provides control instructions and/or timing signals to cause the data driver 11, the sense driver 12, and the scan driver 13 to work together.
  • the controller can also be implemented by circuitry or by software, hardware, firmware or any combination thereof.
  • the controller is a timing controller (T-CON) for receiving image data input from outside the display panel, providing decoded image data to the data driver, and outputting scan control signals and data control to the gate driver and the data driver. Signals, etc.
  • data driver 11 and sense driver 12 can be coupled together to facilitate sensing data interaction between driver 12 and data driver 11.
  • the pixel circuit 100 of the 2n-1 column sub-pixel and the pixel circuit 100 of the 2n-th column sub-pixel located in the same row are connected to the same data line Data, and n is greater than An integer of 0.
  • two pixel circuits 100 connected to the same data line Data in the same row are respectively connected to two different gate lines Gate.
  • the pixel circuit 100 of the 2n-1th column sub-pixel is connected to one gate line Gate
  • the pixel circuit 100 of the adjacent 2n-th column sub-pixel is connected to another gate line Gate, where the two gate lines can be They are disposed adjacent to each other, for example, between adjacent two rows of sub-pixels.
  • Such an arrangement can enable the pixel circuit 100 of the 2n-1 column sub-pixel and the pixel circuit 100 of the 2n-th column sub-pixel to be turned on in a time-division manner, thereby facilitating the use of the shared data line Data to respectively provide different pixels for the pixel circuit 100 sharing the data line Data.
  • Data signal can enable the pixel circuit 100 of the 2n-1 column sub-pixel and the pixel circuit 100 of the 2n-th column sub-pixel to be turned on in a time-division manner, thereby facilitating the use of the shared data line Data to respectively provide different pixels for the pixel circuit 100 sharing the data line Data.
  • Data signal can enable the pixel circuit 100 of the 2n-1 column sub-pixel and the pixel circuit 100 of the 2n-th column sub-pixel to be turned on in a time-division manner, thereby facilitating the use of the shared data line Data to respectively provide different pixels for the pixel circuit 100 sharing the data line Data.
  • the display panel 10 further includes a sensing driving control line SC connected to the scan driver 13, and the sensing driving control line SC and the gate line Gate may share the scan driver 13, that is,
  • the scan driver 13 can be a sensing drive control line SC and a gate line.
  • the Gate provides a sensing drive control signal and a gate drive signal, respectively.
  • the pixel circuit 100 of each row of sub-pixels may also be connected to the same gate line Gate.
  • Such a setting may be that the same row of pixel circuits 100 are simultaneously turned on, and the shared data line Data provides the same data signal for the pixel circuits 100 in the same row sharing the data line Data.
  • the light-emitting luminance of the organic light-emitting diode in the pixel circuit 100 sharing the data line Data can be controlled by the compensation voltage transmitted from the sensing driving line Se to the pixel circuit 100, and the specific compensation process will be described in detail below.
  • the arrangement shown in FIG. 3 reduces the number of gate lines Gate (the number of gate lines Gate is reduced, for example, to half of the arrangement shown in FIG. 2), thereby further increasing the display panel.
  • the aperture ratio reduces parasitic capacitance while facilitating display panel wiring and production.
  • the pixel circuits of the 2m-1st row sub-pixel and the pixel circuit of the 2m-row sub-pixel may be connected to the same gate line, where m is greater than An integer of 0.
  • m is greater than An integer of 0.
  • Such a setting may be that the pixel circuit 100 of the second m-1 row sub-pixel and the pixel circuit 100 of the second m-row sub-pixel are simultaneously turned on, and the shared data line Data is two rows sharing the data line Data among the two adjacent columns.
  • the pixel circuit 100 provides the same data signal.
  • the luminance of the organic light emitting diode in the two rows of pixel circuits 100 sharing the data line Data can be controlled by the compensation voltage transmitted from the sensing driving line Se to the pixel circuit 100.
  • the specific compensation process is detailed below. Said. Compared with the arrangement of the embodiment shown in FIG. 2 and FIG. 3, the arrangement of the embodiment shown in FIG. 4 reduces the number of gate lines Gate (the number of gate lines Gate is reduced, for example, to the arrangement shown in FIG. One-quarter) further increases the aperture ratio of the display panel, reduces parasitic capacitance, and facilitates display panel wiring and production.
  • the display panel can also adopt the method of double-line scanning, that is, two rows of pixel circuits are in a charging state at any time, which can provide twice the charging time of the original progressive scanning driving mode for each pixel circuit, and ensure The picture quality is especially suitable for large-size, high-resolution OLED display products.
  • the display panel 10 may further include a sensing driving control circuit 14 independent of the scan driver 13, and the sensing driving control line SC is connected to the sensing driving control circuit 14, sensing driving.
  • Control circuit 14 may provide a sense drive control signal to sense drive control line SC.
  • the scan driver 13 and the sense drive control circuit 14 are located on both sides of the sub-pixel array, and they may be on the same side.
  • the pixel circuits 100 of different rows in the same row in the embodiment shown in FIG. 4 share the sensing driving line Se
  • the pixel circuits 100 of different rows in the same column can control different rows of the same column by sensing the driving control line SC.
  • the pixel circuit 100 is time-divisionally coupled to the sensing driving line Se to realize transmission of different compensation voltages to the pixel circuits 100 of different rows in the same column through the sensing driving line Se.
  • the data line Data may be the same as the extending direction of the sensing driving line Se.
  • This arrangement can facilitate the setting of the data driver 11 and the sense driver 12 while avoiding the overlap of the data line Data and the sense drive line Se, thereby reducing parasitic capacitance.
  • only one of the data line Data or the sensing driving line Se is disposed between the pixel circuits 100 of each two columns of sub-pixels. .
  • This arrangement can reduce the mutual influence between the data line Data and the sensing driving line Se, further reduce the parasitic capacitance and improve the display quality.
  • the data line Data and the sensing driving line Se may be formed in the same layer. That is to say, the data line Data and the sensing driving line Se can be formed by the same patterning process and using the same material layer, which can reduce the number of patterning processes (that is, reduce the amount of the mask) and simplify the production process. Reduce the cost.
  • the display panel 10 provided by at least one embodiment of the present disclosure may further include a first power line (not shown) configured to provide the first power voltage VDD to the plurality of pixel circuits 100.
  • a first power line (not shown) configured to provide the first power voltage VDD to the plurality of pixel circuits 100.
  • the display panel 10 may further include a second power line (not shown) configured to provide the second power voltage VSS to the plurality of pixel circuits 100.
  • the second power line can be connected to the cathode of the organic light emitting diode OLED.
  • the first power supply voltage VDD may be a high level voltage (eg, 5V)
  • the second power supply voltage VSS is, for example, a low level voltage (eg, 0V or ground).
  • the pixel circuit 100 further includes: a light emitting driving circuit 110 and a sensing driving control circuit 120 .
  • the light emitting driving circuit 110 is configured to drive the organic light emitting diode OLED to emit light during operation;
  • the sensing driving control circuit 120 is configured to control connection and disconnection of the sensing driving line Se with the light emitting driving circuit 110 in the pixel circuit 100.
  • the light emitting driving circuit 110 includes a first transistor T1 (a driving transistor), a second transistor T2, and a storage capacitor Cst.
  • the first pole of the first transistor T1 is connected to the first power line to receive the first power voltage VDD, the gate of the first transistor T1 is connected to the first node N1, and the second pole of the first transistor T1 is connected to the second node N2.
  • the first pole of the second transistor T2 is connected to the data line Data to receive the data signal
  • the gate of the second transistor T2 is connected to the gate line Gate to receive the gate driving signal
  • the second pole of the second transistor T2 is connected to the first node N1 is connected
  • the first end of the storage capacitor Cst is connected to the first node N1
  • the second end of the storage capacitor Cst is connected to the second node N2.
  • the anode of the organic light emitting diode OLED is connected to the second node N2, and the cathode of the organic light emitting diode OLED is electrically connected to the second power voltage VSS, for example, to the second power voltage VSS through the second power line.
  • the sensing driving control circuit 120 includes a third transistor T3, and the first pole of the third transistor T3 is connected to the second node N2.
  • the gate of the third transistor T3 is connected to the sensing driving control line SC to receive the sensing driving control signal, and the second electrode of the third transistor T3 is connected to the sensing driving line Se.
  • Fig. 6B shows four sub-pixel units each having a pixel circuit as shown in Fig. 6A.
  • two sub-pixels adjacent to each other in the first row in the figure share the same data line Data, connected to the same gate line Gate1 and the same sensing control line SC1, but each sub-pixel is connected to a different sensing line.
  • Se1 and Se2; two sub-pixels adjacent to each other in the second row of the figure are connected in the same manner.
  • the sub-pixels located in the left column of the figure share the same data line Data, are connected to different gate lines Gate1 and Gate2, are connected to different sensing control lines SC1 and SC2, and are connected to different sensing lines Se1 and Se3 or Connected to the same sense line; the sub-pixels in the right column of the figure are connected in the same way.
  • the transistors used in the embodiments of the present disclosure may each be a thin film transistor or a field effect transistor or other switching devices having the same characteristics.
  • the source and drain of the transistor used here may be structurally symmetrical, so that the source and the drain may be structurally indistinguishable.
  • the first pole of the transistor of the embodiment of the present disclosure in order to distinguish the two poles of the transistor except the gate, one of the first poles and the other pole are directly described, so the first pole of all or part of the transistors in the embodiment of the present disclosure
  • the second pole is interchangeable as needed.
  • the first pole of the transistor of the embodiment of the present disclosure may be a source
  • the second pole may be a drain; or the first extreme drain of the transistor, and the second source.
  • the transistor can be divided into N-type and P-type transistors.
  • the embodiment of the present disclosure does not limit the type of the transistor, and those skilled in the art can implement the embodiment in the present disclosure by using N-type and/or P-type transistors according to actual needs.
  • the present disclosure includes, but is not limited to, the pixel circuit shown in FIG. 5 or FIG. 6A and FIG. 6B, and may also be a pixel circuit of other structures.
  • the pixel circuit may further include other sub-circuits, such as a reset circuit for gate reset of the first transistor, an illumination control circuit for controlling illumination of the organic light emitting diode, and the like, and may further include, for example, a transistor, Capacitors and other devices to achieve internal compensation and other functions, will not repeat them here.
  • the third transistor T3 in the pixel circuit 100 is controlled to be turned on by the sensing driving control line SC, thereby causing the sensing driver 12 to pass the sensing driving line.
  • the Sen senses the illuminating current or the illuminating voltage of the OLED, and thereby obtains electrical parameters of the OLED, including changes in electrical parameters. For example, as shown in FIG.
  • the first transistor T1 when sensing the current flowing through the first transistor T1 (in the light-emitting phase, the current flowing through the first transistor T1 is used to drive the organic light-emitting diode OLED to emit light), the first transistor T1, the second The transistor T2 and the third transistor T3 are both turned on, and the organic light emitting diode OLED is turned off.
  • the first transistor T1 when sensing the light-emitting voltage of the organic light-emitting diode OLED, the first transistor T1 is turned off, and the second transistor T2 and the third transistor T3 are both turned on, for example, the data signal is at a low level at this time.
  • the sensing driver 12 when the illuminating current or the illuminating voltage sensed by the sensing driver 12 does not coincide with the illuminating current or the illuminating voltage preset by the pixel circuit, the sensing driver 12 generates the compensating voltage Vse according to the sensed illuminating current or the illuminating voltage, or Generate compensation current.
  • the compensation voltage Vse or the compensation current can be applied to the pixel circuit by, for example, a voltage source or a current source through the sensing drive line Se.
  • the illuminating current Ioled of the organic light emitting diode OLED satisfies the following saturation current formula:
  • ⁇ n is the channel mobility of the first transistor T1
  • Cox is the channel capacitance per unit area of the first transistor T1
  • W and L are the channel width and the channel length of the first transistor T1, respectively
  • Vth is the first transistor T1
  • the threshold voltage, Vgs is the gate-source voltage of the first transistor T1 (drive transistor) (the difference between the gate voltage and the source voltage of the first transistor T1).
  • the gate voltage of the first transistor T1 is the data voltage Vdata transmitted by the data line; since the sensing driving line Se passes through the third transistor T3 and the source of the first transistor T1 When the third transistor T3 is turned on, the source voltage of the first transistor T1 is the compensation voltage Vse transmitted by the sensing driving control line SC.
  • the compensation voltage Vse is related to the threshold voltage Vth of the first transistor T1. Therefore, the influence of the drift of the threshold voltage Vth can be compensated by adjusting the magnitude of the compensation voltage Vse, so that the illumination current Ioled of the organic light emitting diode OLED is a preset illumination current.
  • the channel mobility [mu] of the first transistor T1 of n-drift may be compensated by adjusting the magnitude of the compensation voltage Vse channel mobility [mu] n influence of drift.
  • the sensing driver 12 can respectively drive through different sensing electrodes connected to the two pixel circuits 100.
  • the line Se transmits the compensation voltages Vse corresponding to the respective sub-pixels to the two pixel circuits 100, for example, the compensation voltages Vse may be different from each other; for example, in the embodiment of FIG.
  • the four pixel circuits share the same data line Data
  • the sensing driver 12 can respectively drive through different sensing electrodes connected to the four pixel circuits 100.
  • the line Se transmits the compensation voltages Vse corresponding to the respective sub-pixels to the four pixel circuits 100, for example, the compensation voltages Vse may be different from each other.
  • the pixel circuits 100 of different rows in the same column in FIG. 4 share the sensing driving line Se
  • the pixel circuits 100 of different rows for the same column can be controlled by the sensing driving control line SC in the pixel circuits 100 of different rows of the same column.
  • the third transistor T3 is turned on in time to realize transmission of different compensation voltages Vse to the pixel circuits 100 of different rows in the same column through the sensing driving line Se.
  • the embodiment of the present disclosure is not limited to being separately compensated by the compensation voltage Vse transmitted by the sensing driving line Se, and the data voltage Vdata transmitted by the data line and the compensation voltage Vse transmitted by the sensing driving line Se may be simultaneously combined to be common.
  • the compensation is such that the adjustable range of the gate-source voltage Vgs of the first transistor T1 is wider.
  • the data driver 11 and the sense driver 12 can be connected together or both connected to the controller to work together to achieve compensation. This can make the compensation range wider and the compensation more accurate.
  • the light-emitting current of the organic light-emitting diode OLED can be sensed in each frame of the display screen, and each pixel circuit can be dynamically adjusted by adjusting the compensation voltage Vse or the magnitude of the compensation current, thereby improving display quality.
  • the compensating voltage is reduced in one example, or the compensating current is increased in another example.
  • the compensating voltage is increased in one example, or the compensating current is decreased in another example.
  • the compensation voltage Vse or the compensation current may be established as a function of the illuminating current Ioled of the organic light emitting diode OLED, the channel mobility ⁇ n , the data voltage Vdata of the data line transmission, the threshold voltage Vth, or a correspondence table, and the sensing driver 12 may Different compensation voltages Vse or compensation currents are transmitted to the respective pixel circuits 100 through the sensing drive lines Se according to the functional relationship or the correspondence table.
  • the functional relationship or correspondence table can be stored, for example, in a storage device for retrieval and use; the storage device can be any suitable type of storage device, such as a semiconductor memory or a magnetic memory.
  • the sensing driver 12 senses the illuminating current or the illuminating voltage of the OLED by sensing the driving line Se, and is not limited to the illuminating phase of the OLED, and may also set a sensing phase different from the illuminating phase of the OLED. It is used to sense the illuminating current or the illuminating voltage of the organic light emitting diode.
  • the sensing driver 12 may sense the illuminating current or the illuminating voltage of the organic light emitting diode through the sensing driving line Se within an initial period of the illuminating phase of the organic light emitting diode.
  • a sensing phase is specifically set, in which the sensing driver 12 senses the light emitting current of the organic light emitting diode through the sensing driving line Se. Or illuminating voltage.
  • the sensing driver 12 when the plurality of pixel circuits 100 share the data line Data and share the gate line Gate, the sensing driver 12 is reduced in order to reduce the absolute value of the compensation voltage Vse.
  • the load can be applied to the pixel circuit 100 sharing the gate line Gate to the shared data line Data while the data voltage Vdata which minimizes the sum of the absolute values of the respective compensation voltages Vse of the pixel circuits 100 sharing the gate line Gate.
  • the method of applying the data signal is not limited to the smallest sum of the absolute values of the compensation voltages Vse of the pixel circuits 100 sharing the gate line Gate at the same time, and the gate line Gate may be shared simultaneously with the common data line Data.
  • the pixel circuit 100 applies the common data line Data simultaneously
  • the maximum value among the absolute values of the compensation voltages Vse of the pixel circuits 100 of the common gate line Gate is the minimum data voltage Vdata.
  • the embodiment of the present disclosure further provides a display device 1.
  • the display device 1 includes the display panel 10 provided by any embodiment of the present disclosure.
  • the display device 1 may further include a signal receiving circuit, a video signal decoding circuit, and the like so that the video signal may be received, processed, or may further include a modem circuit or an antenna or the like as needed to pass through the network. , wireless signals, etc. are connected to other device signals.
  • the display device 1 provided by the embodiment of the present disclosure may be any product or component having a display function, such as a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator, and the like.
  • a display function such as a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator, and the like.
  • the embodiment of the present disclosure further provides a compensation method for the display panel 10 according to any embodiment of the present disclosure. As shown in FIG. 10, the method includes the following steps.
  • Step S10 sensing an illuminating current or a illuminating voltage of the organic light emitting diode by sensing the driving line;
  • Step S20 generating a compensation voltage according to the illuminating current or the illuminating voltage
  • Step S30 transmitting a compensation voltage to the pixel circuit through the sensing driving line.
  • the illuminating current or the illuminating voltage is an example of an electrical parameter
  • the compensating voltage is an example of a compensating signal, but embodiments of the present disclosure are not limited thereto.
  • the compensation voltage may be calculated according to the saturation current formula of the organic light emitting diode OLED by comparing the sensed light emission current or the light emission voltage with a preset light emission current or light emission voltage.
  • the compensating voltage is decreased.
  • the compensating voltage is increased.
  • the method before sensing the illuminating current or the illuminating voltage of the OLED, the method further includes:
  • Step S05 transmitting a data signal to the pixel circuit through the data line.
  • the sensing driver 12 is reduced in order to reduce the absolute value of the compensation voltage Vse.
  • the load can be shared to the shared data line Data while sharing the pixel circuit of the gate line Gate 100 applies a data voltage Vdata which minimizes the sum of the absolute values of the respective compensation voltages Vse of the pixel circuits 100 which share the common data line Data while sharing the gate line Gate.
  • the method of applying the data signal is not limited to the smallest sum of the absolute values of the compensation voltages Vse of the pixel circuits 100 sharing the gate line Gate at the same time, and the gate line Gate may be shared simultaneously with the common data line Data.
  • the pixel circuit 100 applies a data voltage Vdata having the smallest maximum value among the absolute values of the compensation voltages Vse of the pixel circuits 100 that share the common data line Data while sharing the gate line Gate.
  • the display panel, the display device and the compensation method provided by the embodiments of the present disclosure can increase the aperture ratio and reduce the parasitic capacitance by sharing the data lines by adjacent pixel circuits, and can complete the illuminating current or the illuminating voltage of the organic light emitting diode by multiplexing the sensing driving lines. Sensing and compensation for threshold voltage drift of the drive transistor.

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Abstract

一种显示面板(10)、显示设备(1)及补偿方法。显示面板(10)包括：排布为多行和多列的多个子像素，每个子像素包括像素电路(100)；与多个子像素的像素电路(100)分别连接的多条感测驱动线(Se)；与多条感测驱动线(Se)连接的感测驱动器(12)。像素电路(100)包括发光元件，感测驱动器(12)被配置为通过多条感测驱动线(Se)感测多个子像素的像素电路(100)的发光元件的电学参数，以及被配置为根据电学参数生成补偿信号，并通过多条感测驱动线(Se)向多个子像素的像素电路(100)传输补偿信号。显示面板(10)可以复用感测驱动线(Se)完成感测以及对驱动晶体管的阈值电压漂移的补偿。

Description

显示面板、显示设备及补偿方法 技术领域
本公开的实施例涉及一种显示面板、显示设备及补偿方法。
背景技术
在显示领域，有机发光二极管(OLED)显示面板具有自发光、对比度高、能耗低、视角广、响应速度快、可用于挠曲性面板、使用温度范围广、制造简单等特点，具有广阔的发展前景。
由于上述特点，有机发光二极管(OLED)显示面板可以适用于手机、显示器、笔记本电脑、数码相机、仪器仪表等具有显示功能的装置。
发明内容
本公开的至少一个实施例提供了一种显示面板，该显示面板包括：排布为多行和多列的多个子像素，每个所述子像素包括像素电路；与所述多个子像素的像素电路分别连接的多条感测驱动线；以及与所述多条感测驱动线连接的感测驱动器。所述像素电路包括发光元件，所述感测驱动器被配置为通过所述多条感测驱动线感测所述多个子像素的像素电路的发光元件的电学参数，以及被配置为根据所述电学参数生成补偿信号，并通过所述多条感测驱动线向所述多个子像素的像素电路传输所述补偿信号。
例如，根据一个实施例的显示面板还包括与所述多个子像素的像素电路连接的多条数据线，每条数据线与同一行中至少两个子像素的所述像素电路连接。
例如，根据一个实施例的显示面板还包括与所述多个子像素的像素电路连接的多条栅线，每行所述子像素的像素电路与同一条所述栅线连接。
例如，根据一个实施例的显示面板还包括与所述多个子像素的像素电路连接的多条栅线，第2m-1行所述子像素的像素电路和第2m行所述子像素的像素电路与同一条所述栅线连接，m为大于0的整数。
例如，根据一个实施例的显示面板中，每列所述子像素的像素电路与同 一条所述感测驱动线连接。
例如，根据一个实施例的显示面板中，所述多条数据线与所述多条感测驱动线的延伸方向相同。
例如，根据一个实施例的显示面板中，每两列所述子像素的像素电路之间只设置有所述数据线或只设置有所述感测驱动线。
例如，根据一个实施例的显示面板中，所述多条数据线与所述多条感测驱动线同层形成。
例如，根据一个实施例的显示面板中，第2n-1列子像素的像素电路和第2n列子像素的像素电路与同一条数据线连接，n为大于0的整数。
例如，根据一个实施例的显示面板中，所述像素电路还包括：发光驱动电路，被配置为驱动所述发光元件在工作时发光；以及感测驱动控制电路，被配置为控制所述感测驱动线与所述像素电路中发光驱动电路的连接和断开。
例如，根据一个实施例的显示面板中，所述发光驱动电路包括第一晶体管、第二晶体管和存储电容。所述第一晶体管的第一极与第一电源线连接以接收第一电源电压，所述第一晶体管的栅极与第一节点连接，所述第一晶体管的第二极与第二节点连接；所述第二晶体管的第一极与所述数据线连接以接收数据信号，所述第二晶体管的栅极与栅线连接以接收栅极驱动信号，所述第二晶体管的第二极与所述第一节点连接；所述存储电容的第一端与所述第一节点连接，所述存储电容的第二端与所述第二节点连接。
例如，根据一个实施例的显示面板中，所述感测驱动控制电路包括第三晶体管，所述第三晶体管的第一极与第二节点连接，所述第三晶体管的栅极与感测驱动控制线连接以接收感测驱动控制信号，所述第三晶体管的第二极与所述感测驱动线连接。
例如，根据一个实施例的显示面板还包括：数据驱动器，被配置为向所述像素电路提供数据信号；以及扫描驱动器，被配置为向所述像素电路提供栅极驱动信号。
例如，根据一个实施例的显示面板中，所述发光元件为有机发光二极管，所述电学参数为所述发光二极管的发光电流或发光电压，所述补偿信号为补偿电压或补偿电流。
本公开的至少一个实施例提供了一种显示设备，包括如上所述的任一显示面板。
本公开的至少一个实施例提供了一种如上所述的任一显示面板的补偿方法，包括：通过所述感测驱动线感测所述发光元件的电学参数；根据所述电学参数生成补偿信号；以及通过所述感测驱动线向所述像素电路传输所述补偿信号。
例如，根据至少一个实施例的方法，在感测所述发光元件的电学参数之前，还包括：通过所述数据线向所述像素电路传输数据信号。
附图说明
为了更清楚地说明本公开实施例的技术方案，下面将对实施例或相关技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅涉及本公开的一些实施例，并非对本公开的限制。
图1是本公开实施例提供的一种显示面板的示意图；
图2是本公开实施例提供的图1区域A中像素电路的连接关系示意图之一；
图3是本公开实施例提供的图1区域A中像素电路的连接关系示意图之二；
图4是本公开实施例提供的图1区域A中像素电路的连接关系示意图之三；
图5是本公开实施例提供的一种显示面板中像素电路的示意图之一；
图6A是本公开实施例提供的一种显示面板中像素电路的示意图之二；
图6B是是本公开实施例提供的一种显示面板中像素电路的示意图之三
图7是感测图6A所示的像素电路中流过第一晶体管电流的示意图；
图8是感测图6A所示的像素电路中有机发光二极管发光电压的示意图；
图9是本公开实施例提供的一种显示设备的示意图；
图10是本公开实施例提供的一种补偿方法的流程图之一；以及
图11是本公开实施例提供的一种补偿方法的流程图之二。
具体实施方式
为使本公开实施例的目的、技术方案和优点更加清楚，下面将结合本公开实施例的附图，对本公开实施例的技术方案进行清楚、完整地描述。显然，所描述的实施例是本公开的一部分实施例，而不是全部的实施例。基于所描 述的本公开的实施例，本领域普通技术人员在无需创造性劳动的前提下所获得的所有其他实施例，都属于本公开保护的范围。
除非另作定义，此处使用的技术术语或者科学术语应当为本公开所属领域内具有一般技能的人士所理解的通常意义。本公开中使用的“第一”、“第二”以及类似的词语并不表示任何顺序、数量或者重要性，而只是用来区分不同的组成部分。同样，“包括”或者“包含”等类似的词语意指出现该词前面的元件或者物件涵盖出现在该词后面列举的元件或者物件及其等同，而不排除其他元件或者物件。“连接”或者“相连”等类似的词语并非限定于物理的或者机械的连接，而是可以包括电性的连接，不管是直接的还是间接的。“上”、“下”、“左”、“右”等仅用于表示相对位置关系，当被描述对象的绝对位置改变后，则该相对位置关系也可能相应地改变。
例如，在有机发光二极管(Organic Light-Emitting Diode,OLED)显示面板中，各个像素电路中的驱动晶体管的阈值电压由于制备工艺可能彼此之间存在差异，而且由于例如温度变化的影响，驱动晶体管的阈值电压也会产生漂移的现象。因此，各个驱动晶体管的阈值电压的不同也可能会导致显示面板显示不均匀。因此，需要对驱动晶体管的阈值电压进行补偿。
对于显示面板中的像素电路，可以通过感测有机发光二极管的发光电流或发光电压实现像素电路中驱动晶体管的阈值补偿。当采用上述补偿方式时，需要设置感测线，感测线与其它线路(例如栅线或数据线)之间会产生寄生电容，从而增大了电路的RC负载，降低了感测速度，从而容易导致感测时间不足。
另一方面，显示面板的开口率会影响显示的亮度，因此，如何提高显示面板的开口率也是需要解决的问题。
本公开至少一个实施例提供的显示面板、显示设备和补偿方法可以通过相邻的像素电路共用数据线提升开口率、减小寄生电容，并且还可以复用感测驱动线完成有机发光二极管的发光电流或发光电压的感测以及对驱动晶体管的阈值电压漂移的补偿。
本公开的至少一个实施例提供一种显示面板，该显示面板包括：排布为多行和多列的多个子像素，每个所述子像素包括像素电路；与所述多个子像素的像素电路分别连接的多条感测驱动线；以及与所述多条感测驱动线连接 的感测驱动器。所述像素电路包括发光元件，所述感测驱动器被配置为通过所述多条感测驱动线感测所述多个子像素的像素电路的发光元件的电学参数，以及被配置为根据所述电学参数生成补偿信号，并通过所述多条感测驱动线向所述多个子像素的像素电路传输所述补偿信号。
本公开的至少一个实施例提供一种显示面板，该显示面板包括：阵列排布的多个子像素，每个子像素包括像素电路；与像素电路连接的感测驱动线；与同一行中至少两个像素电路连接的数据线；以及与感测驱动线连接的感测驱动器。像素电路包括有机发光二极管，感测驱动器被配置为通过感测驱动线感测有机发光二极管的发光电流或发光电压，感测驱动器还被配置为根据发光电流或发光电压生成补偿电压，并通过感测驱动线向像素电路传输补偿电压。
例如，感测发光元件(例如有机发光二极管)的发光电流指的是感测即将流过或正在流过有机发光二极管的发光电流；感测发光元件(例如有机发光二极管)的发光电压指的是感测有机发光二极管发光时阳极的电压。
下面以显示面板为有机发光二极管显示面板为例进行说明，但是本公开的实施例不限于此，例如发光元件也可以为其他电致发光元件，例如无机发光二极管等。
例如，图1是本公开至少一个实施例提供的一种显示面板的示意图；图2是本公开实施例提供的图1区域A中像素电路的连接关系示意图之一。
例如，如图1和图2所示，本公开实施例提供的显示面板10包括阵列排布的多个子像素，这些子像素排列为多行和多列；并且，这些子像素可以排列为规则的行和列，即在行方向和列方向子像素都彼此对齐，也可以排列为非规则的行和列，例如相邻两行或相邻的两列之间可以彼此错开预定距离(例如半个子像素宽度或高度)，本公开的实施例对此不作限制。每个子像素包括像素电路100，像素电路100包括发光元件，例如有机发光二极管。显示面板10还包括数据驱动器11、感测驱动器12、扫描驱动器13、数据线Data、栅线Gate和感测驱动线Se。在图1和图2中，多条数据线Data彼此平行且纵向延伸，多条栅线Gate彼此平行且横向延伸，多条感测驱动线Se彼此平行且纵向延伸。
例如，数据驱动器11被配置为向像素电路100提供数据信号；感测驱动 器12被配置为通过感测驱动线Se感测发光元件(例如有机发光二极管)的电学参数，该电学参数例如为发光元件的发光电流或发光电压，感测驱动器12还被配置为根据感测到的发光电流或发光电压生成补偿信号，并通过感测驱动线Se向像素电路100传输该补偿信号，该补偿信号例如为补偿电流或补偿电压；扫描驱动器13被配置为向像素电路100提供栅极驱动信号。
例如，每条数据线Data与同一行中至少两个子像素的像素电路100以及数据驱动器11连接，数据驱动器11被配置为通过同一条数据线Data向同一行中至少两个子像素的像素电路100提供数据信号。
例如，在本公开至少一个实施例提供的显示面板中，每列子像素的像素电路100可以与同一条感测驱动线Se连接，感测驱动器12可以通过一条感测驱动线Se例如以分时方式感测一列子像素的像素电路100中发光元件的电学参数(发光电流或发光电压)，感测驱动器12还可以根据感测到的电学参数生成补偿信号(例如补偿电流或补偿电压)，并且通过该感测驱动线Se例如以分时方式向该列像素电路100传输该补偿信号，由此控制发光元件的发光强度。
例如，数据驱动器11、感测驱动器12和扫描驱动器13可以分别由专用集成电路芯片实现，也可以由电路或者采用软件、硬件(电路)、固件或其任意组合方式实现。例如，在至少一个实施例中，数据驱动器11和感测驱动器12可以由同一块集成电路芯片实现；扫描驱动器13由GOA(gate on array)栅极驱动电路实现，由此可以直接制备在显示面板上，扫描驱动器13也可以通过集成电路芯片实现然后通过电路板(例如柔性电路板)等方式与栅线等电连接。
又例如，感测驱动器12可以包括处理器、存储器。在本公开的实施例中，处理器可以处理数据信号，可以包括各种计算结构，例如复杂指令集计算机(CISC)结构、结构精简指令集计算机(RISC)结构或者一种实行多种指令集组合的结构。在一些实施例中，处理器也可以是微处理器，例如X86处理器或ARM处理器，或者可以是数字处理器(DSP)等。处理器可以控制其它组件以执行期望的功能。在本公开的实施例中，存储器可以保存处理器执行的指令和/或数据。例如，存储器可以包括一个或多个计算机程序产品，所述计算机程序产品可以包括各种形式的计算机可读存储介质，例如易失性存 储器和/或非易失性存储器。所述易失性存储器例如可以包括随机存取存储器(RAM)和/或高速缓冲存储器(cache)等。所述非易失性存储器例如可以包括只读存储器(ROM)、硬盘、闪存等。在所述计算机可读存储介质上可以存储一个或多个计算机程序指令，处理器可以运行所述程序指令，以实现本公开实施例中(由处理器实现)期望的功能。在所述计算机可读存储介质中还可以存储各种应用程序和各种数据，例如所述应用程序使用和/或产生的各种数据等。
例如，显示面板10还可以包括控制器(图中未示出)，该控制器与数据驱动器11、感测驱动器12和扫描驱动器13信号耦接，被配置为向数据驱动器11、感测驱动器12和扫描驱动器13提供控制指令和/或时序信号，以使数据驱动器11、感测驱动器12和扫描驱动器13协同工作。例如，控制器也可以由电路或者采用软件、硬件、固件或其任意组合方式实现。例如，该控制器为定时控制器(T-CON)，用于接收从显示面板外部输入的图像数据、向数据驱动器提供解码的图像数据以及向栅极驱动器和数据驱动器输出扫描控制信号和数据控制信号等。
例如，数据驱动器11和感测驱动器12可以连接在一起，便于感测驱动器12和数据驱动器11之间的数据交互。
例如，在本公开至少一个实施例提供的显示面板中，位于同一行中的第2n-1列子像素的像素电路100和第2n列子像素的像素电路100与同一条数据线Data连接，n为大于0的整数。
例如，如图2所示，同一行中与同一条数据线Data连接的两个像素电路100分别与两条不同的栅线Gate连接。又例如，在同一行中，第2n-1列子像素的像素电路100与一条栅线Gate连接，相邻的第2n列子像素的像素电路100与另一条栅线Gate连接，这里两条栅线可以彼此相邻设置，例如设置在相邻的两行子像素之间。这种设置可以使第2n-1列子像素的像素电路100和第2n列子像素的像素电路100分时开启，从而便于利用共用的数据线Data分别为共用该数据线Data的像素电路100提供不同的数据信号。
例如，如图2所示，显示面板10还包括感测驱动控制线SC，感测驱动控制线SC与扫描驱动器13连接，感测驱动控制线SC和栅线Gate可以共用扫描驱动器13，也就是说，扫描驱动器13可以为感测驱动控制线SC和栅线 Gate分别提供感测驱动控制信号和栅极驱动信号。
例如，如图3所示，在本公开实施例提供的显示面板中，每行子像素的像素电路100也可以与同一条栅线Gate连接。这种设置可以是同一行像素电路100同时开启，共用的数据线Data为共用该数据线Data的同一行中的像素电路100提供相同的数据信号。在此种情况下，共用该数据线Data的像素电路100中有机发光二极管的发光亮度可以通过感测驱动线Se向像素电路100传输的补偿电压控制，具体补偿过程在下文中详述。与图2所示的设置方式相比，图3所示的设置方式减少了栅线Gate的数量(栅线Gate的数量例如减少为图2所示设置方式的一半)，从而进一步增加了显示面板的开口率，减小了寄生电容，同时便于显示面板布线和生产。
例如，如图4所示，本公开至少一个实施例提供的显示面板中，第2m-1行子像素的像素电路和第2m行子像素的像素电路可以与同一条栅线连接，m为大于0的整数。这种设置可以是第2m-1行子像素的像素电路100和第2m行子像素的像素电路100同时开启，共用的数据线Data为与其相邻的两列中共用该数据线Data的两行像素电路100提供相同的数据信号，共用该数据线Data的两行像素电路100中有机发光二极管的发光亮度可以通过感测驱动线Se向像素电路100传输的补偿电压控制，具体补偿过程在下文中详述。与图2和图3所示的实施例的设置方式相比，图4所示的实施例的设置方式减少了栅线Gate的数量(栅线Gate的数量例如减少为图2所示设置方式的四分之一)，从而进一步增加了显示面板的开口率，减小了寄生电容，同时便于显示面板布线和生产。也就是说，显示面板也可以采用双行扫描的方式，即任何时刻都有两行像素电路处于充电状态，可为每个像素电路提供两倍于原有逐行扫描驱动方式的充电时间，保证了画面质量，尤其适合于大尺寸、高分辨率的OLED显示产品。
例如，感测驱动控制线SC和栅线Gate不局限于共用扫描驱动器13的情形。如图4所示，在至少一个实施例中，显示面板10还可以包括独立于扫描驱动器13的感测驱动控制电路14，感测驱动控制线SC与感测驱动控制电路14连接，感测驱动控制电路14可以为感测驱动控制线SC提供感测驱动控制信号。在图中，扫描驱动器13和感测驱动控制电路14位于子像素阵列的两侧，二者可以位于同一侧。
例如，由于图4所示的实施例中同一列不同行的像素电路100共用感测驱动线Se，因此，对于同一列不同行的像素电路100可以通过感测驱动控制线SC控制同一列不同行的像素电路100与感测驱动线Se分时连接，以实现通过感测驱动线Se向同一列不同行的像素电路100传输不同的补偿电压。
例如，如图2至图4所示，在本公开至少一个实施例提供的显示面板中，数据线Data可以与感测驱动线Se的延伸方向相同。这种设置方式可以便于数据驱动器11和感测驱动器12的设置，同时避免数据线Data与感测驱动线Se的交叠，从而减小寄生电容。
例如，如图2至图4所示，在本公开至少一个实施例提供的显示面板中，每两列子像素的像素电路100之间只设置有数据线Data或感测驱动线Se中的一种。这种设置方式可以减小数据线Data与感测驱动线Se之间的相互影响，进一步减小寄生电容，提高显示质量。
例如，在本公开至少一个实施例提供的显示面板中，数据线Data与感测驱动线Se可以同层形成。也就是说，数据线Data与感测驱动线Se可以采用同一个图案化工艺、使用同一个材料层形成，这样可以减少图案化工艺的数量(也即减少掩模板的用量)，简化生产过程，减少成本。
例如，本公开至少一个实施例提供的显示面板10，还可以包括第一电源线(图中未示出)，第一电源线被配置为向多个像素电路100提供第一电源电压VDD。
例如，显示面板10还可以包括第二电源线(图中未示出)，第二电源线被配置为向多个像素电路100提供第二电源电压VSS。例如，第二电源线可以连接到有机发光二极管OLED的阴极。
例如，第一电源电压VDD可以为高电平电压(例如，5V)，第二电源电压VSS例如为低电平电压(例如，0V或接地)。
例如，如图5所示，在本公开至少一个实施例提供的显示面板中，像素电路100还包括：发光驱动电路110以及感测驱动控制电路120。发光驱动电路110被配置为驱动有机发光二极管OLED在工作时发光；感测驱动控制电路120被配置为控制感测驱动线Se与像素电路100中发光驱动电路110的连接和断开。
例如，如图5和图6A所示，在本公开至少一个实施例提供的显示面板 中，发光驱动电路110包括第一晶体管T1(驱动晶体管)、第二晶体管T2和存储电容Cst。第一晶体管T1的第一极与第一电源线连接以接收第一电源电压VDD，第一晶体管T1的栅极与第一节点N1连接，第一晶体管T1的第二极与第二节点N2连接；第二晶体管T2的第一极与数据线Data连接以接收数据信号，第二晶体管T2的栅极与栅线Gate连接以接收栅极驱动信号，第二晶体管T2的第二极与第一节点N1连接；存储电容Cst的第一端与第一节点N1连接，存储电容Cst的第二端与第二节点N2连接。
例如，有机发光二极管OLED的阳极与第二节点N2连接，则有机发光二极管OLED的阴极与第二电源电压VSS电连接，例如通过第二电源线与第二电源电压VSS电连接。
例如，如图5和图6A所示，在本公开至少一个实施例提供的显示面板中，感测驱动控制电路120包括第三晶体管T3，第三晶体管T3的第一极与第二节点N2连接，第三晶体管T3的栅极与感测驱动控制线SC连接以接收感测驱动控制信号，第三晶体管T3的第二极与感测驱动线Se连接。
图6B示出了4个子像素单元，每个子像素具有如图6A所示的像素电路。例如位于图中第一行中彼此相邻的两个子像素共享同一条数据线Data，连接到同一条栅线Gate1和同一条感测控制线SC1，但是每个子像素各自连接到不同的感测线Se1和Se2；位于图中第二行中彼此相邻的两个子像素以相同的方式连接。位于图中左侧一列中的子像素共享同一条数据线Data，连接到不同的栅线Gate1和Gate2，连接到不同的感测控制线SC1和SC2，连接到不同的感测线Se1和Se3或者连接到相同的感测线；位于图中右侧一列中的子像素以相同的方式连接。
需要说明的是，本公开的实施例中采用的晶体管均可以为薄膜晶体管或场效应晶体管或其他特性相同的开关器件。这里采用的晶体管的源极、漏极在结构上可以是对称的，所以其源极、漏极在结构上可以是没有区别的。在本公开的实施例中，为了区分晶体管除栅极之外的两极，直接描述了其中一极为第一极，另一极为第二极，所以本公开实施例中全部或部分晶体管的第一极和第二极根据需要是可以互换的。例如，本公开实施例的晶体管的第一极可以为源极，第二极可以为漏极；或者，晶体管的第一极为漏极，第二极为源极。此外，按照晶体管的特性区分可以将晶体管分为N型和P型晶体管， 本公开的实施例对晶体管的类型不作限定，本领域技术人员可以根据实际需要利用N型和/或P型晶体管实现本公开中的实施例。
需要说明的是，本公开的至少一个实施例包括但不局限于图5或图6A图6B所示的像素电路，也可以是其它结构的像素电路。例如，在至少一个实施例中，像素电路还可以包括其它子电路，例如用于第一晶体管栅极复位的复位电路、用于控制有机发光二极管发光的发光控制电路等，例如还可以包括晶体管、电容等器件以实现内部补偿等功能，在此不再赘述。
例如，对于图6A所示的像素电路，在有机发光二极管的感测阶段，由感测驱动控制线SC控制像素电路100中的第三晶体管T3开启，从而使感测驱动器12通过感测驱动线Se感测有机发光二极管的发光电流或发光电压，并由此得到该有机发光二极管的电学参数，包括电学参数的变化。例如，如图7所示，在感测流过第一晶体管T1的电流(在发光阶段，流过第一晶体管T1的电流用于驱动有机发光二极管OLED发光)时，第一晶体管T1、第二晶体管T2和第三晶体管T3均开启，有机发光二极管OLED关闭。例如，如图8所示，在感测有机发光二极管OLED的发光电压时，第一晶体管T1关闭，第二晶体管T2和第三晶体管T3均开启，例如，此时数据信号为低电平。例如，感测驱动器12感测到的发光电流或发光电压与该像素电路预设的发光电流或发光电压不一致时，感测驱动器12根据感测到的发光电流或发光电压生成补偿电压Vse，或者生成补偿电流。
例如，在发光阶段，例如可由电压源或电流源通过感测驱动线Se向该像素电路施加该补偿电压Vse或补偿电流。例如，有机发光二极管OLED的发光电流Ioled满足如下饱和电流公式：
Ioled＝K(Vgs-Vth)2＝K(Vdata-Vse-Vth)2
其中，
Figure PCTCN2017114398-appb-000001
μn为第一晶体管T1的沟道迁移率，Cox为第一晶体管T1单位面积的沟道电容，W和L分别为第一晶体管T1的沟道宽度和沟道长度，Vth为第一晶体管T1的阈值电压，Vgs为第一晶体管T1(驱动晶体管)的栅源电压(第一晶体管T1的栅极电压与源极电压之差)。由于数据线Data与第一晶体管T1的栅极连接，第一晶体管T1的栅极电压为数据线传输的数据电压Vdata；由于感测驱动线Se通过第三晶体管T3与第 一晶体管T1的源极连接，第三晶体管T3开启时，第一晶体管T1的源极电压为感测驱动控制线SC传输的补偿电压Vse。通过上述有机发光二极管OLED的饱和电流公式可以看到，有机发光二极管OLED的发光电流Ioled与沟道迁移率μn、数据线传输的数据电压Vdata、感测驱动器12通过感测驱动线Se传输的补偿电压Vse以及第一晶体管T1的阈值电压Vth有关，因此，通过调整补偿电压Vse的大小可以补偿阈值电压Vth漂移的影响，从而使有机发光二极管OLED的发光电流Ioled为预设发光电流。
此外，当第一晶体管T1的沟道迁移率μn漂移时，也可以通过调整补偿电压Vse的大小补偿沟道迁移率μn漂移的影响。
此外，例如，在如图3和图4所示的实施例中，当多个像素电路100共用数据线Data并共用栅线Gate时，例如，图3中两个像素电路共用同一条数据线Data和同一条栅线Gate，为了使这两个像素电路100中的有机发光二极管OLED满足各自预设的发光电流，感测驱动器12可以分别通过与这两个像素电路100连接的不同的感测驱动线Se向这两个像素电路100传输与各个子像素相对应的补偿电压Vse，例如这些补偿电压Vse可以彼此不同；例如，在图4的实施例中，四个像素电路共用同一条数据线Data和同一条栅线Gate，为了使这四个像素电路100中的有机发光二极管OLED满足各自预设的发光电流，感测驱动器12可以分别通过与这四个像素电路100连接的不同的感测驱动线Se向这四个像素电路100传输与各个子像素相对应的补偿电压Vse，例如这些补偿电压Vse可以彼此不同。例如，由于图4中同一列不同行的像素电路100共用感测驱动线Se，因此，对于同一列不同行的像素电路100可以通过感测驱动控制线SC控制同一列不同行的像素电路100中的第三晶体管T3分时开启，以实现通过感测驱动线Se向同一列不同行的像素电路100传输不同的补偿电压Vse。
例如，本公开的实施例不局限于通过感测驱动线Se传输的补偿电压Vse单独补偿，也可以同时利用数据线传输的数据电压Vdata和感测驱动线Se传输的补偿电压Vse相配合以共同补偿，从而使得第一晶体管T1的栅源电压Vgs的可调节范围更广。在这种补偿方式中，数据驱动器11和感测驱动器12可以连接在一起或者均与控制器连接以协同工作，共同实现补偿。这样可以使得可补偿的范围更广、补偿更为准确。
例如，可以在显示画面的每一帧中感测有机发光二极管OLED的发光电流，并通过调整补偿电压Vse或补偿电流的大小对每个像素电路进行动态调整，从而提高显示质量。
例如，当感测到的发光电流或发光电压小于预设的发光电流或发光电压时，在一个示例中减小补偿电压，或在另一个示例中增加补偿电流。
例如，当感测到的发光电流或发光电压大于预设的发光电流或发光电压时，在一个示例中增大补偿电压，或在另一个示例中减小补偿电流。
例如，可以建立补偿电压Vse或补偿电流与有机发光二极管OLED的发光电流Ioled、沟道迁移率μn、数据线传输的数据电压Vdata、阈值电压Vth的函数关系或对应表，感测驱动器12可以根据该函数关系或对应表通过感测驱动线Se向各个像素电路100传输不同的补偿电压Vse或补偿电流。该函数关系或对应表例如可以保存存储装置之中，以供调取、使用；该存储装置可以为各种适当类型的存储装置，例如半导体存储器或磁存储器等。
例如，感测驱动器12通过感测驱动线Se感测有机发光二极管的发光电流或发光电压并不局限于在有机发光二极管的发光阶段，也可以设置不同于有机发光二极管的发光阶段的感测阶段用于感测有机发光二极管的发光电流或发光电压。
例如，可以在有机发光二极管的发光阶段中初始的时段内，感测驱动器12通过感测驱动线Se感测有机发光二极管的发光电流或发光电压。又例如，可以在通过数据线传输数据电压Vdata到第一节点N1之后，专门设置一个感测阶段，在该感测阶段内感测驱动器12通过感测驱动线Se感测有机发光二极管的发光电流或发光电压。
例如，在如图3和图4所示的实施例中，当多个像素电路100共用数据线Data并共用栅线Gate时，为了减小补偿电压Vse的绝对值、进而减小感测驱动器12的负荷，可以向共用数据线Data同时共用栅线Gate的像素电路100施加使共用数据线Data同时共用栅线Gate的像素电路100各自的补偿电压Vse的绝对值之和最小的数据电压Vdata。
又例如，施加数据信号的方式不局限于使共用数据线Data同时共用栅线Gate的像素电路100各自的补偿电压Vse的绝对值之和最小，也可以向共用数据线Data同时共用栅线Gate的像素电路100施加使共用数据线Data同时 共用栅线Gate的像素电路100各自的补偿电压Vse的绝对值中最大值为最小的数据电压Vdata。
本公开的实施例还提供一种显示设备1，如图9所示，显示设备1包括本公开任一实施例提供的显示面板10。在本公开的至少一个实施例中，显示设备1还可以包括信号接收电路、视频信号解码电路等从而可以接收、处理视频信号，或者根据需要还可以包括调制解调电路或天线等从而可以通过网络、无线信号等与其他设备信号连接。
例如，本公开的实施例提供的显示设备1可以为：手机、平板电脑、电视机、显示器、笔记本电脑、数码相框、导航仪等任何具有显示功能的产品或部件。
本公开的实施例还提供一种本公开任一实施例提供的显示面板10的补偿方法，如图10所示，该方法包括如下步骤。
步骤S10：通过感测驱动线感测有机发光二极管的发光电流或发光电压；
步骤S20：根据发光电流或发光电压生成补偿电压；以及
步骤S30：通过感测驱动线向像素电路传输补偿电压。
这里，发光电流或发光电压是电学参数的示例，补偿电压是补偿信号的示例，但是本公开的实施例不限于此。
例如，在步骤S20中，可以通过比较感测到的发光电流或发光电压与预设的发光电流或发光电压，从而根据有机发光二极管OLED的饱和电流公式计算生成补偿电压。
例如，当感测到的发光电流或发光电压小于预设的发光电流或发光电压时，则减小补偿电压。
例如，当感测到的发光电流或发光电压大于预设的发光电流或发光电压时，则增大补偿电压。
例如，如图11所示，在本公开至少一个实施例提供的方法中，在感测有机发光二极管的发光电流或发光电压之前，还包括：
步骤S05：通过数据线向像素电路传输数据信号。
例如，在如图3和图4所示的实施例中，当多个像素电路100共用数据线Data并共用栅线Gate时，为了减小补偿电压Vse的绝对值、进而减小感测驱动器12的负荷，可以向共用数据线Data同时共用栅线Gate的像素电路 100施加使共用数据线Data同时共用栅线Gate的像素电路100各自的补偿电压Vse的绝对值之和最小的数据电压Vdata。
又例如，施加数据信号的方式不局限于使共用数据线Data同时共用栅线Gate的像素电路100各自的补偿电压Vse的绝对值之和最小，也可以向共用数据线Data同时共用栅线Gate的像素电路100施加使共用数据线Data同时共用栅线Gate的像素电路100各自的补偿电压Vse的绝对值中最大值最小的数据电压Vdata。
本公开实施例提供的显示面板、显示设备和补偿方法可以通过相邻的像素电路共用数据线提升开口率、减小寄生电容，可以复用感测驱动线完成有机发光二极管的发光电流或发光电压的感测以及对驱动晶体管的阈值电压漂移的补偿。
以上所述仅是本公开的示范性实施方式，而非用于限制本公开的保护范围，本公开的保护范围由所附的权利要求确定。
本申请要求于2017年5月12日递交的中国专利申请第201710335194.4号的优先权，在此全文引用上述中国专利申请公开的内容以作为本申请的一部分。

Claims (17)

  1. 一种显示面板，包括：
    排布为多行和多列的多个子像素，每个所述子像素包括像素电路；
    与所述多个子像素的像素电路分别连接的多条感测驱动线；以及
    与所述多条感测驱动线连接的感测驱动器，其中，
    所述像素电路包括发光元件，
    所述感测驱动器被配置为通过所述多条感测驱动线感测所述多个子像素的像素电路的发光元件的电学参数，以及被配置为根据所述电学参数生成补偿信号，并通过所述多条感测驱动线向所述多个子像素的像素电路传输所述补偿信号。
  2. 根据权利要求1所述的显示面板，还包括与所述多个子像素的像素电路连接的多条数据线，
    其中，每条数据线与同一行中至少两个子像素的所述像素电路连接。
  3. 根据权利要求1或2所述的显示面板，还包括与所述多个子像素的像素电路连接的多条栅线，
    其中，每行所述子像素的像素电路与同一条所述栅线连接。
  4. 根据权利要求1或2所述的显示面板，还包括与所述多个子像素的像素电路连接的多条栅线，
    其中，第2m-1行所述子像素的像素电路和第2m行所述子像素的像素电路与同一条所述栅线连接，m为大于0的整数。
  5. 根据权利要求1-4任一所述的显示面板，其中，每列所述子像素的像素电路与同一条所述感测驱动线连接。
  6. 根据权利要求2或3所述的显示面板，其中，所述多条数据线与所述多条感测驱动线的延伸方向相同。
  7. 根据权利要求2或3所述的显示面板，其中，每两列所述子像素的像素电路之间只设置有所述数据线或只设置有所述感测驱动线。
  8. 根据权利要求2、3、6或7所述的显示面板，其中，所述多条数据线与所述多条感测驱动线同层形成。
  9. 根据权利要求2-3以及6-8任一所述的显示面板，其中，第2n-1列子 像素的像素电路和第2n列子像素的像素电路与同一条数据线连接，n为大于0的整数。
  10. 根据权利要求1-9任一项所述的显示面板，其中，所述像素电路还包括：
    发光驱动电路，被配置为驱动所述发光元件在工作时发光；以及
    感测驱动控制电路，被配置为控制所述感测驱动线与所述像素电路中发光驱动电路的连接和断开。
  11. 根据权利要求10所述的显示面板，其中，所述发光驱动电路包括第一晶体管、第二晶体管和存储电容，
    所述第一晶体管的第一极与第一电源线连接以接收第一电源电压，所述第一晶体管的栅极与第一节点连接，所述第一晶体管的第二极与第二节点连接；
    所述第二晶体管的第一极与所述数据线连接以接收数据信号，所述第二晶体管的栅极与栅线连接以接收栅极驱动信号，所述第二晶体管的第二极与所述第一节点连接；
    所述存储电容的第一端与所述第一节点连接，所述存储电容的第二端与所述第二节点连接。
  12. 根据权利要求10或11所述的显示面板，其中，所述感测驱动控制电路包括第三晶体管，
    所述第三晶体管的第一极与第二节点连接，所述第三晶体管的栅极与感测驱动控制线连接以接收感测驱动控制信号，所述第三晶体管的第二极与所述感测驱动线连接。
  13. 根据权利要求1-12任一项所述的显示面板，还包括：
    数据驱动器，被配置为向所述像素电路提供数据信号；以及
    扫描驱动器，被配置为向所述像素电路提供栅极驱动信号。
  14. 根据权利要求1-13任一项所述的显示面板，其中，所述发光元件为有机发光二极管，
    所述电学参数为所述发光二极管的发光电流或发光电压，所述补偿信号为补偿电压或补偿电流。
  15. 一种显示设备，包括如权利要求1-14任一项所述的显示面板。
  16. 一种如权利要求1-14任一项所述显示面板的补偿方法，包括：
    通过所述感测驱动线感测所述发光元件的电学参数；
    根据所述电学参数生成补偿信号；以及
    通过所述感测驱动线向所述像素电路传输所述补偿信号。
  17. 根据权利要求16所述的方法，在感测所述发光元件的电学参数之前，还包括：
    通过所述数据线向所述像素电路传输数据信号。
PCT/CN2017/114398 2017-05-12 2017-12-04 显示面板、显示设备及补偿方法 Ceased WO2018205574A1 (zh)

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