CN106920514A - A kind of display panel and preparation method thereof - Google Patents
A kind of display panel and preparation method thereof Download PDFInfo
- Publication number
- CN106920514A CN106920514A CN201510996488.2A CN201510996488A CN106920514A CN 106920514 A CN106920514 A CN 106920514A CN 201510996488 A CN201510996488 A CN 201510996488A CN 106920514 A CN106920514 A CN 106920514A
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- Prior art keywords
- integrated circuit
- voltage
- display panel
- detecting resistance
- power integrated
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Classifications
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- 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
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- 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]
- G09G3/3275—Details of drivers for data electrodes
- G09G3/3291—Details of drivers for data electrodes in which the data driver supplies a variable data voltage for setting the current through, or the voltage across, the light-emitting elements
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Control Of El Displays (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
The present invention relates to semiconductor preparation field, more particularly to a kind of display panel and preparation method thereof, by the external detecting resistance of drive integrated circult in conventional display panel, and by the comparator in detecting resistance tieback to the drive integrated circult, the load voltage of whole display panel is detected with this, then in the external driving chip of system end of whole display panel, driving chip is adjusted according to the load voltage that detecting resistance is detected to the voltage of whole display panel, to reduce the time delay and unnecessary power consumption that algorithm and signal are transmitted in current way, and then allow power integrated circuit to change the purpose that voltage reaches reduction power consumption, and response can be rapider when voltage is changed.
Description
Technical field
The present invention relates to semiconductor preparation field, more particularly to a kind of display panel and its preparation side
Method.
Background technology
At present, display panel (such as AMOLED (Active Matrix/Organic Light
Emitting Diode, active-matrix organic light emitting diode) panel) in low GTG or low
When brightness shows, it will usually passed through via after algorithm computing and by driving chip from system end
Holding wire does voltage adjustment to power integrated circuit, and the purpose of power consumption penalty is saved to reach.
But current way must do algorithm in system, must be via driving chip through letter
Number line can be only achieved the purpose for doing voltage adjustment to power integrated circuit.And every integrated electricity of power
The voltage step on road is also not quite similar, if the voltage steps corresponding to the power integrated circuit of application
If jump is not quite similar, initial voltage must be corrected according to different power integrated circuits,
Cause the puzzlement in exploitation.
So needing a kind of new display panel and the method for preparing the display panel badly.
The content of the invention
For above-mentioned problem, the invention discloses a kind of display panel and its preparation side
Method, its specific technical scheme is：
A kind of display panel, including：
Power integrated circuit, driving chip and display module, the power integrated circuit pass through institute
Driving chip is stated to be connected with the display module, and the power integrated circuit and the driving core
It is provided with detecting resistance between piece, and the detecting resistance and the power integrated circuit and described
Driving chip forms concatenation, to detect the output voltage of the power integrated circuit；
Wherein, the power integrated circuit includes current sense amplifier, comparator and controller,
And two ends of two inputs of the current sense amplifier respectively with detecting resistance are connected, institute
The output end of the output end and the driving chip of stating current sense amplifier passes through the ratio
It is connected with the controller compared with device, the power integrated circuit is adjusted with by the controller
Output voltage.
Above-mentioned display panel also includes：
MOS switch, is arranged in the power integrated amplifier, and the MOS switch point
It is not connected with the controller and the detecting resistance.
In above-mentioned display panel, the controller includes：
Constant off-time controller, the output end with the comparator is connected；
Gate driver, the MOS switch by the gate driver with the constant shut-off when
Between controller connection.
Above-mentioned display panel, the MOS switch is connected with the detecting resistance.
The application also describes a kind of preparation method of display panel, including：
There is provided one has the panel of power integrated circuit, driving chip and display module, the work(
Rate integrated circuit is connected by the driving chip with the display module；
Detecting resistance is concatenated between the power integrated circuit and the driving chip；
By the detecting resistance two ends tieback to the power integrated circuit；And
The magnitude of voltage of the detecting resistance and the display panel is measured, and according to the magnitude of voltage
The panel load voltage is adjusted.
In above-mentioned method, current sense amplifier is provided with the power integrated circuit, and
The detecting resistance tieback is flowed through described to the input of the current sense amplifier with basis
The electric current for detecting resistance exports the magnitude of voltage.
In above-mentioned method, comparator, the comparing are additionally provided with the power integrated circuit
The input of device is connected with the current sense amplifier and the driving chip respectively, with basis
The driving voltage output of the magnitude of voltage and the driving chip of the current sense amplifier output
Voltage difference.
In above-mentioned method, gate driver and constant pass are additionally provided with the power integrated circuit
Disconnected time controller, and the gate driver by the constant off-time controller with it is described
Comparator is connected.
Above-mentioned method also includes：
MOS switch, and the MOS switch and institute are set in the power integrated circuit
State gate driver connection；
The MOS switch is connected with the detecting resistance, with by the MOS switch
With the load voltage that the gate driver controls the panel.
Above-mentioned technical proposal has the following advantages that or beneficial effect：
A kind of display panel of the application design and preparation method thereof, by conventional display
The external detecting resistance of drive integrated circult of panel (such as AMOLED panel), and should
Comparator in detecting resistance tieback to drive integrated circult, whole display panel is detected with this
Load voltage, then in the external driving chip of system end of whole display panel, driving chip
The voltage of whole display panel is adjusted according to the load voltage that detecting resistance is detected, with
Reduce algorithm and the time delay and unnecessary power consumption of signal transmission in current way, and then allow work(
Rate integrated circuit changes voltage and reaches the purpose for reducing power consumption, and is rung when voltage is changed
Ying Huigeng is rapid.
Brief description of the drawings
The detailed description made to non-limiting example with reference to the following drawings by reading, this hair
Bright and its feature, profile and advantage will become more apparent.The identical mark in whole accompanying drawings
Note indicates identical part.Accompanying drawing can be drawn to scale, it is preferred that emphasis is this hair is shown
Bright purport.
Fig. 1 is the structural representation of the application power integrated circuit.
Specific embodiment
The present invention is further illustrated with specific embodiment below in conjunction with the accompanying drawings, but not
As restriction of the invention.
For in current power integrated circuit to display panel (such as AMOLED panel)
Voltage adjustment during the system that causes is unstable, calculation when and signal can cause work(when transmitting
The problems such as rate is lost.The application designs a kind of voltage adjusting method of display panel.
Illustrated with reference to specific embodiment
Specifically, as shown in Figure 1, there is provided one has power integrated circuit 1, driving chip 6
With the display panel of display module (not shown).Power integrated circuit 1 is a kind of miniature
Electronic device or part, using certain technique, transistor, two needed for a circuit
The elements such as pole pipe, resistance, electric capacity and inductance and wiring interconnection together, are produced on a fritter or several
On fritter semiconductor wafer or dielectric substrate, it is then encapsulated in a shell, as with institute
Need the microstructure of circuit function.Power integrated circuit 1 passes through driving chip 6 and display module
Connection, to drive it to be shown, and the company between power integrated circuit 1 and driving chip 6
It not is what is be directly connected to connect, wherein some conventional electrical components can be also set up, here just not
Repeat.
Then the output end in power integrated circuit 1 sets detecting resistance 2, is exactly specifically to go here and there
It is connected between power integrated circuit 1 and driving chip 6, i.e., the detecting resistance 2 can be used to detect
The output voltage of power integrated circuit 1, that is, the load electricity of whole display panel can be detected
Pressure.
In this application, current sense amplifier 3, electric current are provided with power integrated circuit 1
Detection amplifier 3 is the amplifier by measuring the voltage drop detection electric current of resistance on current channel,
Current sense amplifier 3 exports the voltage or electric current being directly proportional to tested electric current.In the application
The two ends for detecting resistance 2 are connected with two inputs of current sense amplifier 3, this
Sample just can be proportional therewith to export according to the electric current and its resistance for flowing through detecting resistance 2
Magnitude of voltage.
In the power integrated circuit 1 of the application, comparator (not shown) is additionally provided with,
Comparator is exactly by comparing two sizes of the curtage of input, in output end output
The electronic component of different voltage results.Detecting resistance 2 passes through current sense amplifier 3 and compares
The input connection of device, the input of comparator is also connected with driving chip 6, thus may be used
With the magnitude of voltage, the magnitude of voltage of driving chip 6 and one that are exported according to current sense amplifier 3
Setting voltage value (can specifically set, generally display module can be just according to actual demand
Often the voltage of work is detecting ohmically partial pressure value) compare and draw display panel load voltage difference
It is worth, the load voltage of whole display panel is adjusted according to this voltage difference then.
In this application, it is additionally provided with power integrated circuit 1 including gate driver 5 and constant
The controller of turn-off time controller 4, and gate driver 5 is by constant off-time control
Device 4 is connected with the output end of comparator, and gate driver 5 is for controlling power integrated circuit 1
Internal MOS switch, and in detecting the access power integrated circuit 1 of resistance 2, be exactly
It is connected with the MOS switch in power integrated circuit 1.So current sense amplifier 3 is just
The voltage difference for detecting the two ends of resistance 2 can be calculated.
In this application, comparator is connected by constant off-time controller 4 with gate driver 5
Connect, so when the voltage difference of comparator output is a high potential level, gate driver
5 setting switch is opened, the voltage that can thus control MOS switch to export, and then is controlled
Make the load voltage size of whole display panel；When the voltage difference of comparator output is one low
During potential level, setting switch is closed, and controls door to drive by constant off-time controller 4
The opening and closing of the reset switch of dynamic device 5, when low level state for a period of time after, it is constant
Turn-off time controller 4 is opened, and reset switch is opened to control MOS switch, and then controls
The voltage swing of output, can thus control the size of whole display panel load voltage.It is logical
Cross the load voltage size of this series of this display panel of loop control so that whole display surface
The load voltage stabilization of plate.
Embodiment two
In addition, the application have also been devised a kind of display panel, specifically include：
With power integrated circuit 1, driving chip 6 and display module (not shown)
Panel, specifically refers to relevant component explanation in embodiment one, does not just repeat not herein.
In the external detecting resistance 2 of the output end of power integrated circuit 1, the detecting resistance 2 is
It is serially connected between power integrated circuit 1 and driving chip 6, for detecting the negative of display panel
Carry voltage.
Current sense amplifier 3, comparator is provided with power integrated circuit 1 (in figure not
Show) and controller.The input of current sense amplifier 3 terminates to the two ends of detecting resistance 2,
To export voltage proportional therewith according to the electric current for flowing through detecting resistance 2.Then will drive
The output end of chip 6 and current sense amplifier 3 is connected with the input of comparator, with basis
Magnitude of voltage with setting is compared, and draws a voltage difference.Controller is according to this voltage
Difference carries out corresponding voltage control action.
Specifically, controller may include gate driver 5 and constant off-time controller 4, door
Driver 5 is connected by constant off-time controller 4 with comparator, gate driver 5 and perseverance
The specific manipulation of turn-off time controller 4 is determined as described in above-mentioned method, is not just repeated herein
.
In addition, being additionally provided with MOS switch, MOS switch point in whole power integrated circuit 1
It is not connected with detecting resistance 2, power supply and gate driver 5, the control of gate driver 5 MOS is opened
Close, and then control adds voltage on a display panel by MOS switch, so as to control to show
Show the load voltage on panel, the voltage for reaching display panel can be adjusted according to load voltage
Purpose.
In sum, the method and display device of a kind of panel pressure regulation of the application design, lead to
The external detecting resistance of drive integrated circult in conventional display panel is crossed, and the detecting is electric
Comparator in resistance tieback to drive integrated circult, the load of whole display panel is detected with this
Voltage, then in the external driving chip of system end of whole display panel, driving chip is according to detecing
The load voltage that measuring resistance is detected is adjusted to the voltage of whole display panel, to reduce mesh
Algorithm and the time delay and unnecessary power consumption of signal transmission in preceding way, and then make power integrated
Circuit changes voltage and reaches the purpose for reducing power consumption, and response can more when voltage is changed
Rapidly.
Presently preferred embodiments of the present invention is described above.It is to be appreciated that of the invention
Above-mentioned particular implementation is not limited to, wherein the equipment and structure that do not describe in detail to the greatest extent should
It is interpreted as being practiced with the common mode in this area；It is any to be familiar with those skilled in the art
Member, in the case where technical solution of the present invention ambit is not departed from, all using the method for the disclosure above
Many possible variations and modification are made to technical solution of the present invention with technology contents, or is revised as
The Equivalent embodiments of equivalent variations, this has no effect on substance of the invention.Therefore, it is every
Without departing from the content of technical solution of the present invention, according to technical spirit of the invention to above example
Any simple modification, equivalent variation and modification done, still fall within technical solution of the present invention guarantor
In the range of shield.
Claims (9)
1. a kind of display panel, it is characterised in that the display panel includes：
Power integrated circuit, driving chip and display module, the power integrated circuit pass through institute
Driving chip is stated to be connected with the display module, and the power integrated circuit and the driving core
It is provided with detecting resistance between piece, and the detecting resistance and the power integrated circuit and described
Driving chip forms concatenation, to detect the output voltage of the power integrated circuit；
Wherein, the power integrated circuit includes current sense amplifier, comparator and controller,
And two ends of two inputs of the current sense amplifier respectively with detecting resistance are connected, institute
The output end of the output end and the driving chip of stating current sense amplifier passes through the ratio
It is connected with the controller compared with device, the power integrated circuit is adjusted with by the controller
Output voltage.
2. display panel according to claim 1, it is characterised in that also include：
MOS switch, is arranged in the power integrated amplifier, and the MOS switch point
It is not connected with the controller and the detecting resistance.
3. display panel according to claim 2, it is characterised in that the controller
Including：
Constant off-time controller, the output end with the comparator is connected；
Gate driver, the MOS switch by the gate driver with the constant shut-off when
Between controller connection.
4. display panel according to claim 3, it is characterised in that the MOS
Switch is connected with the detecting resistance.
5. a kind of preparation method of display panel, it is characterised in that including：
There is provided one has the panel of power integrated circuit, driving chip and display module, the work(
Rate integrated circuit is connected by the driving chip with the display module；
Detecting resistance is concatenated between the power integrated circuit and the driving chip；
By the detecting resistance two ends tieback to the power integrated circuit；And
The magnitude of voltage of the detecting resistance and the display panel is measured, and according to the magnitude of voltage
The panel load voltage is adjusted.
6. method according to claim 5, it is characterised in that the integrated electricity of power
Current sense amplifier is provided with road, and detecting resistance tieback to the current detecting is put
The input of big device, the magnitude of voltage is exported with according to the electric current for flowing through the detecting resistance.
7. method according to claim 6, it is characterised in that the integrated electricity of power
Comparator is additionally provided with road, the input of the comparator amplifies with the current detecting respectively
Device and the driving chip are connected, with the magnitude of voltage that export according to the current sense amplifier with
The driving voltage output voltage difference of the driving chip.
8. method according to claim 7, it is characterised in that the integrated electricity of power
Gate driver and constant off-time controller are additionally provided with road, and the gate driver passes through
The constant off-time controller is connected with the comparator.
9. method according to claim 8, it is characterised in that methods described also includes：
MOS switch, and the MOS switch and institute are set in the power integrated circuit
State gate driver connection；
The MOS switch is connected with the detecting resistance, with by the MOS switch
With the load voltage that the gate driver controls the panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510996488.2A CN106920514A (en) | 2015-12-25 | 2015-12-25 | A kind of display panel and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510996488.2A CN106920514A (en) | 2015-12-25 | 2015-12-25 | A kind of display panel and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106920514A true CN106920514A (en) | 2017-07-04 |
Family
ID=59455624
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510996488.2A Pending CN106920514A (en) | 2015-12-25 | 2015-12-25 | A kind of display panel and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106920514A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022126330A1 (en) * | 2020-12-14 | 2022-06-23 | 京东方科技集团股份有限公司 | Display module and control method therefor, and display device |
| WO2024159349A1 (en) * | 2023-01-30 | 2024-08-08 | 京东方科技集团股份有限公司 | Control system and control method therefor, and device |
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| CN101263543A (en) * | 2005-09-12 | 2008-09-10 | 剑桥显示技术有限公司 | Active matrix display drive control systems |
| CN101281721A (en) * | 2007-04-06 | 2008-10-08 | 三星Sdi株式会社 | Organic light emitting display and driving method thereof |
| CN101989402A (en) * | 2009-07-30 | 2011-03-23 | 三星移动显示器株式会社 | Organic light emitting display device and driving voltage setting method thereof |
| CN103187027A (en) * | 2011-12-28 | 2013-07-03 | 三星电子株式会社 | Power supply device, display apparatus having the same, and power supply method |
| CN104715709A (en) * | 2013-12-13 | 2015-06-17 | 三星显示有限公司 | Dc-dc converter and display device including same |
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2015
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| CN101263543A (en) * | 2005-09-12 | 2008-09-10 | 剑桥显示技术有限公司 | Active matrix display drive control systems |
| CN101281721A (en) * | 2007-04-06 | 2008-10-08 | 三星Sdi株式会社 | Organic light emitting display and driving method thereof |
| CN101989402A (en) * | 2009-07-30 | 2011-03-23 | 三星移动显示器株式会社 | Organic light emitting display device and driving voltage setting method thereof |
| CN103187027A (en) * | 2011-12-28 | 2013-07-03 | 三星电子株式会社 | Power supply device, display apparatus having the same, and power supply method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022126330A1 (en) * | 2020-12-14 | 2022-06-23 | 京东方科技集团股份有限公司 | Display module and control method therefor, and display device |
| CN115280403A (en) * | 2020-12-14 | 2022-11-01 | 京东方科技集团股份有限公司 | Display module, control method thereof and display device |
| US12094404B2 (en) | 2020-12-14 | 2024-09-17 | Hefei Boe Joint Technology Co., Ltd. | Display module and method for driving the same, and display apparatus |
| WO2024159349A1 (en) * | 2023-01-30 | 2024-08-08 | 京东方科技集团股份有限公司 | Control system and control method therefor, and device |
| US12444331B2 (en) | 2023-01-30 | 2025-10-14 | Beijing Boe Technology Development Co., Ltd. | Control system, control method used for it, and device |
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Application publication date: 20170704 |