WO2008020526A1 - dispositif de traitement d'informations - Google Patents
dispositif de traitement d'informations Download PDFInfo
- Publication number
- WO2008020526A1 WO2008020526A1 PCT/JP2007/064400 JP2007064400W WO2008020526A1 WO 2008020526 A1 WO2008020526 A1 WO 2008020526A1 JP 2007064400 W JP2007064400 W JP 2007064400W WO 2008020526 A1 WO2008020526 A1 WO 2008020526A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- viewing angle
- liquid crystal
- display device
- crystal display
- information processing
- 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
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1347—Arrangement of liquid crystal layers or cells in which the final condition of one light beam is achieved by the addition of the effects of two or more layers or cells
- G02F1/13476—Arrangement of liquid crystal layers or cells in which the final condition of one light beam is achieved by the addition of the effects of two or more layers or cells in which at least one liquid crystal cell or layer assumes a scattering state
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/1323—Arrangements for providing a switchable viewing angle
-
- 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
- G09G3/34—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 by control of light from an independent source
- G09G3/36—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 by control of light from an independent source using liquid crystals
- G09G3/3611—Control of matrices with row and column drivers
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133626—Illuminating devices providing two modes of illumination, e.g. day-night
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/028—Improving the quality of display appearance by changing the viewing angle properties, e.g. widening the viewing angle, adapting the viewing angle to the view direction
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/64—Constructional details of receivers, e.g. cabinets or dust covers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/66—Transforming electric information into light information
Definitions
- the present invention relates to an information processing apparatus, and more particularly to an information processing apparatus having a liquid crystal display device.
- the information displayed on the display device of the information processing device may be content that may not be viewed by a third party. There was a possibility that it could be seen by a third party around.
- a method of pasting a film for preventing a staring eye that narrows the viewing angle of the display device on the display device has been used.
- Patent Document 1 JP-A-8-76104
- Patent Document 2 JP 11 84357 A
- the method of pasting the viewing prevention film for narrowing the viewing angle of the display device on the display device may cause the displayed screen to appear around.
- the viewing angle is narrow, there is a problem that the screen cannot be seen from the surroundings.
- there is a method of making it possible to remove the pretending-preventive film but there are problems of troublesome removal, damage to the information processing apparatus during removal, and loss of the removed film.
- Patent Document 1 there is a structure as shown in Patent Document 1 in which a reflective liquid crystal display panel and a transmissive liquid crystal display panel can be switched.
- an optical shutter that can switch between a state of high reflectance and low transmittance and a state of low reflectance and high transmittance is provided between the liquid crystal display cell and the backlight unit. Is provided.
- the optical shutter and the backlight unit are connected to the mode switching switch, and the backlight unit is turned off and the optical shirt unit is interlocked with the mode switching switch.
- a switch is made. Specifically, when the backlight unit is turned off, it is used as a reflective liquid crystal display panel, and when the backlight unit is turned on, it is used as a transmissive liquid crystal display panel.
- Patent Document 1 the structure shown in Patent Document 1 is a liquid crystal display panel that is both a reflective type and a transmissive type, and has a higher display screen brightness than a conventional transflective liquid crystal panel. For this reason, when it is desired to narrow the viewing angle of the display device, there still remains a problem that must be dealt with by the method of pasting the film for preventing seeing and seeing.
- a structure as shown in Patent Document 2 is used as a structure capable of switching the viewing angle of the display screen. Specifically, a first lens sheet is provided between the backlight unit and the liquid crystal display panel, and a second lens sheet is disposed on the back of the backlight unit. The first lens sheet and the second lens sheet are connected to the belt-like body, and the first lens sheet and the second lens sheet are rotated by rotating a roller provided in the knock light unit with a motor. Switching. In this configuration, the first lens sheet and the second lens sheet are different in apex angle of the triangular prism.
- one lens sheet used for a narrow viewing angle has a triangular prism with a larger apex angle than the other lens sheet used for a wide viewing angle, and the degree of condensing is extremely increased.
- the luminance from the oblique direction becomes lower than the front luminance, so that a narrow viewing angle is realized.
- the structure of the display device described in Patent Document 2 is based on the light converging characteristics of the lens sheet, that is, the viewing angle of the display device due to the difference in the apex angle of the triangular prism of the lens sheet. Switching. For this reason, when changing the light condensing property of the lens sheet, a means for switching to a lens sheet having another light condensing characteristic is provided, or a means for changing the apex angle of the triangular prism of the lens sheet. It is necessary to provide it. For this reason, when trying to change the condensing characteristics of the lens sheet step by step, the structure becomes complicated and bothersome and problematic.
- the present invention improves the disadvantages of the above-described conventional example, and in particular, the viewing angle of the display device of the information processing device and the output of the lighting device can be easily adjusted according to the use situation and the user's desire.
- the objective is to provide a highly convenient information processing device that can be switched to Target.
- an information processing apparatus is an information processing apparatus including a liquid crystal display device and an illumination device that illuminates the liquid crystal display device from the back, the liquid crystal display device and A transmission state variable means that is interposed between the lighting device and changes a transmission state of light from the lighting device, and controls the transmission state variable means when the lighting device is in a lighting state, so that the liquid crystal display device A viewing angle control means for changing the viewing angle is provided.
- the transmission state of the transmission state variable means can be varied by the viewing angle control means.
- the viewing angle can be changed by controlling the amount and direction of light incident on the liquid crystal display device from the illumination device.
- the viewing angle of the display device can be reduced without attaching a narrow viewing angle film or the like on the display device. Even when it is desired to widen the viewing angle, it can be changed without removing the narrow viewing angle film. Since the viewing angle is changed while the lighting device is lit, a clear and bright display screen can be obtained before and after the change.
- the viewing angle control means is characterized in that the transmission state varying means is controlled to diffuse light from the illumination device so that the viewing angle of the liquid crystal display device is a wide viewing angle.
- the transmission state varying means diffuses and transmits the light from the illumination device, a clear display screen can be obtained even when the display screen is viewed from the surroundings.
- the brightness of the display screen can be increased rather than reflecting light from the outside to achieve a wide viewing angle.
- the viewing angle control means controls the transmission state varying means to transmit light from the illumination device in a predetermined one direction so that the viewing angle of the liquid crystal display device is a narrow viewing angle. It is characterized. According to the force, the transmission state variable means transmits the light from the lighting device in a predetermined direction, the brightness of the display screen in the force and the transmission direction increases, and the brightness in the other direction decreases. . Thereby, a viewing angle can be narrowed.
- the present invention is characterized in that a luminous intensity control means for controlling the luminous intensity of the illumination device is provided.
- a luminous intensity control means for controlling the luminous intensity of the illumination device is provided.
- the light intensity transmitted through the transmission state varying means can be controlled by the lighting device. . Therefore, even when the display angle becomes dark by changing the viewing angle, it is possible to cope with it.
- the luminous intensity control means controls the luminous intensity of the illumination device based on the state of the viewing angle before and after the change of the liquid crystal display device when the viewing angle of the liquid crystal display device is changed by the viewing angle control means. It is a feature. As a result, the luminous intensity control means controls the luminous intensity of the illuminating device based on the state of the liquid crystal display device before and after the viewing angle change, and therefore suppresses the change in the luminance of the liquid crystal display device that occurs before and after the viewing angle change. be able to.
- the luminous intensity control means reduces the luminous intensity of the illuminating device when the viewing angle of the liquid crystal display device is changed to a wide viewing angle force or a narrow viewing angle by the viewing angle control means. It is characterized by controlling the luminous intensity to be increased when the viewing angle is changed. According to the power, the change in the brightness of the liquid crystal display device before and after the change of the viewing angle can be reduced. Therefore, the user can easily see the display screen, and can reduce the eye fatigue when operating the information processing apparatus.
- the luminous intensity control means controls the luminous intensity of the illumination device so that the front luminance of the liquid crystal display device is equal before and after the change of the viewing angle when the viewing angle of the liquid crystal display device is changed by the viewing angle control means. It is characterized by that. Thereby, the luminous intensity of the illuminating device is adjusted so that the front luminance of the liquid crystal display device does not change before and after the viewing angle is changed. Therefore, the display screen is easier to see, and the user's eye fatigue can be reduced.
- the viewing angle control means is characterized in that the viewing angle of the liquid crystal display device is changed to a preset viewing angle in accordance with the display content of the liquid crystal display device. As a result, the viewing angle is automatically changed to a preset viewing angle according to the usage status of the user. Therefore, when the viewing angle is manually changed for each display content of the liquid crystal display device, the troublesomeness is eliminated.
- the viewing angle control means is characterized in that the viewing angle of the liquid crystal display device is changed in accordance with an input viewing angle setting command. This makes it possible to change the viewing angle quickly when the user desires.
- the transmission state varying means is characterized in that the transmission state can be varied in a plurality of stages. As a result, the transmission state changing means can change the transmission state step by step, so that the viewing angle can be changed according to the user's preference.
- a narrow viewing angle film that transmits light from the illumination device in a predetermined direction between the illumination device and the transmission state varying means. It is characterized by that. As a result, as described above, when switching between the narrow viewing angle and the wide viewing angle, the light of the lighting device is not a narrow viewing angle characteristic, and even if the narrow viewing angle is insufficient, the narrow viewing angle is not sufficient. By using a viewing angle-changing film, it is possible to reduce the viewing angle more effectively.
- a viewing angle control method includes a liquid crystal display device, an illumination device that illuminates the liquid crystal display device from the back, and an intervening space between the liquid crystal display device and the illumination device.
- An information processing apparatus comprising: a transmission state variable means for changing a transmission state of light from the lighting device; and a method for controlling a viewing angle of the liquid crystal display device, wherein the transmission state is variable when the lighting device is in a lighting state. The viewing angle of the liquid crystal display device is changed by controlling the means.
- the transmission state variable means is controlled to a state of diffusing the light of the illuminating device, and the viewing angle of the liquid crystal display device is set to a wide viewing angle. Further, the transmission state varying means is controlled so as to transmit light from the illumination device in a predetermined direction so that the viewing angle of the liquid crystal display device is a narrow viewing angle. At this time, when the viewing angle of the liquid crystal display device is changed, the luminous intensity of the lighting device is controlled based on the state of the viewing angle before and after the change of the liquid crystal display device.
- a program for realizing a viewing angle control means for changing the viewing angle of a liquid crystal display device which is another embodiment of the present invention, illuminates the liquid crystal display device and the liquid crystal display device from the back side. Transmitted to an information processing apparatus that includes an illumination device and a transmission state variable means that is inserted between the liquid crystal display device and the illumination device to vary the transmission state of light from the illumination device when the illumination device is in a lighting state. It is characterized by realizing a viewing angle control means for controlling the state variable means to change the viewing angle of the liquid crystal display device.
- the information processing device controls the luminous intensity of the lighting device based on the state of the viewing angle before and after the change of the liquid crystal display device. It is characterized by realizing the means.
- the viewing angle of the display device can be changed by the transmission state varying means and the illumination device. Therefore, it is possible to change the viewing angle without sticking a film for preventing viewing on the display device, and the user can select the viewing angle according to the usage situation. Has no excellent effect.
- the present invention is characterized in that the viewing angle control means controls the transmission state varying means to change the viewing angle of the liquid crystal display device, and displays a clear and bright display screen before and after the change.
- the transmission state varying means is not limited to the case where a polymer dispersed liquid crystal is used. Anything that is controlled by the viewing angle control means and can change the light transmission state! /.
- the force for explaining the case where a controller such as a CPU is used as the viewing angle control means and the luminous intensity control means is not limited to the case of electronic control such as a CPU. May be realized.
- FIG. 1 is a perspective view showing the configuration of the mobile phone in the present embodiment.
- Fig. 2 is a block diagram showing the configuration of the mobile phone.
- FIG. 3 is a functional block diagram showing the configuration of the controller.
- FIG. 4 is an enlarged cross-sectional view showing the configuration of the polymer-dispersed liquid crystal.
- FIG. 5 is a state diagram showing the state of the polymer-dispersed liquid crystal when the display device is in the wide viewing angle state.
- FIG. 6 is a state diagram showing the state of the polymer-dispersed liquid crystal when the display device is in a narrow viewing angle state.
- 7 to 8 are flowcharts showing the operation of the mobile phone. [0031] [Configuration]
- a mobile phone 1 (information processing apparatus) in the present invention is, for example, a foldable mobile phone. Then, it is provided with a display device 2 for displaying characters, images, and the like, and an operation unit 3 for inputting characters and setting each function on a surface located inside when folded.
- the operation unit 3 is a numeric keypad or the like, and is provided on a surface located on the inner side when the cellular phone 1 is folded.
- the operation unit 3 is used to input commands to the controller 7 described later, and is used to input characters and change settings of each function.
- the display device 2 includes a liquid crystal display device 4, an illuminating device 5, and a polymer-dispersed liquid crystal 6.
- a controller By cooperating with a controller, various data can be displayed with a narrow viewing angle or a wide viewing angle. It is configured so that it can be displayed.
- a lighting device 5 is provided on the back side of the liquid crystal display device 4 (the side opposite to the display surface).
- a polymer dispersed liquid crystal 6 is arranged between the liquid crystal display device 4 and the illumination device 5.
- the liquid crystal display device 4, the lighting device 5 and the polymer dispersed liquid crystal 6 are controlled by a controller 7, and each function according to a command from the controller 7.
- the functions of the liquid crystal display device 4, the illumination device 5, and the polymer dispersed liquid crystal 6 will be described in detail below.
- the liquid crystal display device 4 is, for example, a transmissive liquid crystal display that displays characters and images using liquid crystal.
- an illuminating device 5 is provided on the back side of the liquid crystal display device 4, and a polymer-dispersed liquid crystal 6 is disposed between the liquid crystal display device 4 and the illuminating device 5. Then, the light emitted from the illumination device 5 passes through the polymer dispersed liquid crystal 6 and enters the liquid crystal display device 4. At this time, the direction and intensity of light incident on the liquid crystal display device 4 change depending on the voltage application state of the transparent electrode 9 of the polymer-dispersed liquid crystal 6 described later. As a result, the viewing angle and the luminance of the liquid crystal display device 4 change. Further, the liquid crystal display device 4 is controlled by a liquid crystal display processing unit 71 in the controller 7 described later, and displays the display contents according to the command from the liquid crystal display processing unit 71 on the liquid crystal display device 4.
- the illumination device 5 is, for example, a light emitting diode. It has a narrow viewing angle characteristic that is bright when viewed from the front but dark when viewed from the front.
- the illumination device 5 illuminates the polymer dispersed liquid crystal 6 from the back side (lower side in FIG. 2), and the light emitted from the illumination device 5 is polymer The light passes through the dispersed liquid crystal 6 and enters the liquid crystal display device 4. At this time, the direction and intensity of the light transmitted through the polymer-dispersed liquid crystal 6 change depending on the voltage application state of the transparent electrode 9 of the polymer-dispersed liquid crystal 6 described later.
- the lighting device 5 is controlled by a lighting control processing unit 73 inside the controller 7 described later.
- the lighting device 5 is turned off and the illumination output is adjusted in accordance with a command from the illumination control processing unit 73.
- the illumination device 5 has been described as having a narrow viewing angle characteristic.
- an illumination device having a wide viewing angle characteristic may be used. A specific example of using a lighting device having a wide viewing angle characteristic will be described in Example 2.
- the polymer-dispersed liquid crystal 6 transmits the light irradiated from the illumination device 5.
- the polymer-dispersed liquid crystal 6 is controlled by a viewing angle control processing unit 72 inside the controller 7 described later, and is applied to the transparent electrode 9 according to the command of the viewing angle control processing unit 72. Change the voltage.
- a viewing angle control processing unit 72 inside the controller 7 described later, and is applied to the transparent electrode 9 according to the command of the viewing angle control processing unit 72. Change the voltage.
- the controller 7 (viewing angle control means, luminous intensity control means) is, for example, a CPU that controls the mobile phone 1 and is provided in the mobile phone 1.
- the controller 7 includes a liquid crystal display processing unit 71, a viewing angle control processing unit 72, and an illumination control processing unit 73 by incorporating a program.
- the controller 7 is connected to the operation unit 3. Based on the operation of the operation unit 3, a command is sent to the liquid crystal display processing unit 71, the viewing angle control processing unit 72 and the illumination control processing unit 73.
- the case where the controller 7 is provided inside the mobile device 1 has been described. However, this is an example, and the present invention is not limited to the case inside the mobile device 1. Be prepared! /!
- the liquid crystal display processing unit 71 controls the display screen, such as changing display contents. Then, when the display screen of the liquid crystal display device 4 is switched from the standby screen to the mail screen, for example, by the operation of the operation unit 3 by the user, the command input to the operation unit 3 is displayed in the liquid crystal display.
- the processing unit 71 receives the command, and based on this command, the liquid crystal display processing unit 71 sends a command to the liquid crystal display device 4 to switch the display screen to the mail screen.
- the viewing angle control processing unit 72 controls the transmission state of the polymer dispersed liquid crystal 6. Then, the viewing angle control processing unit 72 inquires of the memory unit (not shown) whether the display screen before switching is set to a narrow viewing angle or a wide viewing angle. Also, the memory unit is inquired about whether the display screen after switching is set to a narrow viewing angle or a wide viewing angle. The memory unit stores information set by the user. If the display screen before switching has a narrow viewing angle and the display screen after switching has a wide viewing angle as a result of inquiry to the memory unit, the viewing angle control processing unit 72 sends the polymer dispersed liquid crystal 6 A command is sent to turn off the voltage.
- the voltage is applied from the viewing angle control processing unit 72 to the polymer dispersed liquid crystal 6.
- a command is sent to.
- the viewing angle control processing unit 72 can also switch the viewing angle by the user's operation regardless of the setting state of the viewing angle.
- the viewing angle control processing unit 72 applies the voltage to the polymer dispersed liquid crystal 6 or turns off the voltage. Send a command.
- the illumination control processing unit 73 controls the illumination device 5. Then, when the user operates the operation unit 3 or when a viewing angle switching command is sent from the viewing angle control processing unit 72 to the polymer dispersed liquid crystal 6 and the viewing angle is changed, the illumination control processing unit 73 The lighting lighting command is sent from the lighting device 5 to the lighting device 5. And for a certain period of time, When the operation is not performed, an illumination turn-off command is sent from the illumination control processing unit 73 to the illumination device 5.
- the viewing angle control processing unit 72 controls the voltage applied between the transparent electrodes 9 to change the orientation direction of the polymer polymer 10 stepwise, thereby changing the viewing angle according to the above configuration. It can also be changed step by step. Specifically, the orientation direction of the polymer 10 is divided into, for example, five steps between a narrow viewing angle and a wide viewing angle, and the stepwise change of the viewing angle is changed by the operation of the operation unit 3. Can do. As a result, the viewing angle can be changed by a simple method, the weight of the information processing device can be reduced, and the structure of the display device can be reduced.
- the mobile phone 1 is activated (step Sl).
- a command is sent from the controller 7 to the liquid crystal display device 4, the illumination device 5, and the polymer dispersed liquid crystal 6.
- light is illuminated from the illumination device 5 and a standby screen is displayed on the liquid crystal display device 4 (step S2).
- this standby screen no voltage is applied to the transparent electrode 9 that commands the polymer dispersed liquid crystal 6 from the viewing angle control processing unit 72 of the controller 7 (step S3). Therefore, as described above, the polymer 10 is directed in an arbitrary direction (see FIG. 5), and the light illuminated from the illumination device 5 is diffused and transmitted, so the viewing angle of the display device 2 Has a wide viewing angle (Step S4).
- the user operates the operation unit 3 to change the display content to the mail screen (Yes in Step S5).
- the setting information is read, and a command is sent from the controller 7 to the liquid crystal display device 4, the illumination device 5, and the polymer dispersed liquid crystal 6.
- the liquid crystal display device 4 receives a command from the liquid crystal display processing unit 71 and changes the display content to a mail screen.
- the display state of the mail screen is set to a narrow viewing angle by the user, and the information set by the user is stored in a memory unit or the like inside the mobile phone 1 (not shown).
- an instruction is sent from the viewing angle control processing unit 72 to the polymer dispersed liquid crystal 6 and a voltage is applied to the transparent electrode 9 (step S6).
- the polymer 10 is oriented in a certain direction (see FIG. 6)
- the polymer-dispersed liquid crystal 6 becomes transparent, and the viewing angle of the display device 2 becomes a narrow viewing angle.
- Step S7 the controller 7 sends a command to the liquid crystal display device 4, the illumination device 5 and the polymer dispersed liquid crystal 6 again, and the display screen returns to the standby screen (Yes in step S8).
- the standby screen has been described as having a wide viewing angle. However, this may be a narrow viewing angle, and the setting may be changed according to the user's preference. it can. Further, it is not limited to the force mail screen described as the mail screen being set to a narrow viewing angle, and other display contents in which the viewing angle is set to a narrow viewing angle may be used.
- the mobile phone 1 is activated. Then, a command is sent from the controller 7 to the liquid crystal display device 4, the illuminating device 5, and the polymer dispersed liquid crystal 6, and display contents at the time of activation are displayed.
- the viewing angle at startup is a wide viewing angle (step Sl l).
- the user operates the operation unit 3 to change the viewing angle from the wide viewing angle to the narrow viewing angle (Yes in step S12).
- a viewing angle change command is sent from the viewing angle control processing unit 72 to the polymer dispersed liquid crystal 6, and the polymer dispersed liquid crystal 6 that has received this command applies a voltage to the transparent electrode 9 (step S13). Then, by applying a voltage to the transparent electrode 9, since the high molecular polymer 10 faces a certain direction, the polymer dispersed liquid crystal 6 becomes transparent, and the viewing angle of the display device 2 becomes a narrow viewing angle (step S 14).
- step S 15 the user operates the operation unit 3 to change the viewing angle from the narrow viewing angle to the wide viewing angle (Yes in step S 15).
- a command to change the viewing angle is sent again from the viewing angle control processing unit 72 to the polymer dispersed liquid crystal 6, and upon receiving this command, the polymer dispersed liquid crystal 6 turns off the voltage of the transparent electrode 9 (step S 16 ).
- the polymer polymer 10 is directed in an arbitrary direction, so that the transmitted light is diffused, and the viewing angle of the display device 2 returns to a wide viewing angle.
- the viewing angle of the display screen is set in advance by the user! /, It is possible to use / divide the viewing angle according to the situation.
- FIG. 9 is a block diagram showing the configuration of the mobile phone in this embodiment.
- FIG. 10 is a state diagram showing a light transmission state from the illumination device in the display device.
- the configuration is almost the same as that of the mobile phone 1 in Example 1, except that a narrow viewing angle film 11 is interposed between the polymer dispersed liquid crystal and the lighting device.
- the mobile phone 21 in the present invention is, for example, a foldable mobile phone.
- a display device 2 that displays characters, images, and the like, and an operation unit 3 that inputs characters and sets various functions are provided on a surface positioned inside when folded.
- the display device 2 includes a liquid crystal display device 4, an illumination device 5, a polymer-dispersed liquid crystal 6, and a narrow viewing angle film 11.
- a controller 7 is provided in the mobile phone 21 to control the liquid crystal display device 4, the lighting device 5, and the polymer dispersed liquid crystal 6.
- the narrow viewing angle film 11 is a film that transmits light from the illumination device 5 in a predetermined direction.
- the narrow viewing angle film 11 is interposed between the polymer dispersed liquid crystal 6 and the illumination device 5 as shown in FIG. Further, as shown in FIG. 10, the narrow viewing angle film 11 is used when the illumination device 5 has a wide viewing angle characteristic of irradiating light in an arbitrary direction. Then, as indicated by the arrows in FIG. 10, when the light emitted from the illumination device 5 passes through the narrow viewing angle narrowing film 11, the light changes its direction and direction to a predetermined direction. As a result, even if the optical characteristics of the illumination device 5 have a wide viewing angle and a sufficient narrow viewing angle cannot be obtained when the viewing angle is switched as described above, it is effective. It can be transmitted in one direction and have a narrow viewing angle.
- FIG. 11 is a block diagram showing the configuration of the mobile phone.
- FIGS. 11 to 13 are state diagrams showing the state of the viewing angle switching switch 12 and the polymer dispersed liquid crystal.
- the present embodiment is different from the first embodiment in that the mobile phone 31 is provided with a force viewing angle switching switch 1 2 having substantially the same configuration as the mobile phone 1 in the first embodiment.
- the mobile phone 31 in the present invention is, for example, a foldable mobile phone.
- a display device 2 that displays characters and images on the inner surface when folded, an operation unit 3 for inputting characters and setting each function, and a viewing angle switching switch 12 for switching the viewing angle 12 And.
- FIG. 11 to FIG. 13 the configuration different from that of the first embodiment Will be described in detail.
- the viewing angle switching switch 12 (viewing angle control means) is provided on the side surface of the mobile phone 31, for example, and is a sliding switch that switches between a narrow viewing angle and a wide viewing angle. When the slide switch is slid to one side, the display screen has a narrow viewing angle, and when it is slid to the other, a wide viewing angle is obtained. As shown in FIG. 11, the viewing angle switching switch 12 is connected to the polymer dispersed liquid crystal 4. When the viewing angle switching switch 1 2 is set to a wide viewing angle, no voltage is applied to the transparent electrode 9 of the polymer dispersed liquid crystal 4 as shown in FIG. Because it faces in any direction, it is cloudy. When the viewing angle switching switch 12 is set to a narrow viewing angle, a voltage is applied to the transparent electrode 9 of the polymer-dispersed liquid crystal 4 as shown in FIG. Since it faces in a certain direction, the polymer dispersed liquid crystal 6 becomes transparent.
- FIG. 14 is a flowchart showing the operation of the mobile phone.
- the lighting device 5 was controlled so that the front luminance of the display device 2 was equal before and after the change of the viewing force S and the force S, which has almost the same configuration as the mobile phone 1 in the above-described first example. The point is different.
- a configuration different from that of the first embodiment will be described in detail.
- the illumination control processing unit 73 controls the illumination device 5. Then, the memory unit (not shown) is inquired whether the display screen before switching is set to a narrow viewing angle or a wide viewing angle. Also, the memory unit is inquired about whether the display screen after switching is set to a narrow viewing angle or a wide viewing angle. If the display screen before switching has a narrow viewing angle and the display screen after switching has a wide viewing angle as a result of inquiring to the memory unit, the lighting control processing unit 73 outputs the lighting device 5 to the lighting device 5. A command is sent to increase. If the display screen before switching has a wide viewing angle and the display screen after switching has a narrow viewing angle, the lighting control processing unit 73 instructs the lighting device 5 to reduce the output. Sent.
- step S21 mobile The mobile phone is activated (step S21).
- a lighting lighting command is sent from the lighting control processing unit 73 to the lighting device 5, and the lighting device 5 is turned on based on this command (step S22).
- the output of the illumination device 5 at this time is a standard output, and that the viewing angle at startup is a wide viewing angle (step S23).
- step S24 the user operates the operation unit 3 to change the viewing angle to a narrow viewing angle (Yes in step S24). Then, an output change command is sent from the illumination control processing unit 73 to the illumination device 5. Then, the lighting device 5 that has received this command lowers the output to a value at which the front luminance of the display device 2 becomes the same before and after the change (step S25). At this time, a viewing angle change command is sent from the viewing angle control processing unit 72 to the polymer-dispersed liquid crystal 6, and the viewing angle of the display device 2 is changed to a narrow viewing angle as in the first embodiment (step S26). .
- the user operates the operation unit 3 to change the viewing angle to a wide viewing angle (Yes in step S27). Then, a command to change the output is sent from the lighting control processing unit 73 to the lighting device 5, and the lighting device 5 that has received this command outputs the standard output (output at the wide viewing angle), that is, the output at the narrow viewing angle (step). Change the output to higher than S25) and light up. Thereby, a change in the front luminance of the display device 2 due to a change in the viewing angle can be suppressed, and the eyestrain of the user can be reduced.
- control of the illumination device 5 by the illumination control processing unit 73 is not limited to the above-described control.
- the brightness of the display device 2 in a narrow viewing angle state and the brightness in a wide viewing angle state May be set in advance according to the preference of the user, and based on this setting, control may be performed so that the output of the illumination device 5 is switched when the viewing angle is switched.
- the present invention can be used for an information processing apparatus having a liquid crystal display device and has industrial applicability.
- FIG. 1 is a perspective view showing a configuration of a mobile phone in Example 1.
- FIG. 1 is a perspective view showing a configuration of a mobile phone in Example 1.
- FIG. 2 is a block diagram showing a configuration of a mobile phone.
- 3 is a functional block diagram showing the configuration of the controller.
- FIG. 9 is a block diagram showing the configuration of the mobile phone in the second embodiment.
- Fig. 10 is a state diagram showing a light transmission state from the illumination device in the display device.
- 11 A block diagram showing the configuration of the mobile phone in the third embodiment.
- FIG. 14 is a flowchart showing the operation of the mobile phone in the fourth embodiment.
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Optics & Photonics (AREA)
- Computer Hardware Design (AREA)
- Theoretical Computer Science (AREA)
- Mathematical Physics (AREA)
- Liquid Crystal (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Transforming Electric Information Into Light Information (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Description
Claims
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US12/376,608 US20100182537A1 (en) | 2006-08-17 | 2007-07-23 | Information processing apparatus |
| EP07791133A EP2053457A4 (en) | 2006-08-17 | 2007-07-23 | INFORMATION PROCESSING DEVICE |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006-222211 | 2006-08-17 | ||
| JP2006222211A JP2008046387A (ja) | 2006-08-17 | 2006-08-17 | 情報処理装置 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2008020526A1 true WO2008020526A1 (fr) | 2008-02-21 |
Family
ID=39082053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2007/064400 Ceased WO2008020526A1 (fr) | 2006-08-17 | 2007-07-23 | dispositif de traitement d'informations |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20100182537A1 (ja) |
| EP (1) | EP2053457A4 (ja) |
| JP (1) | JP2008046387A (ja) |
| CN (1) | CN101523283A (ja) |
| WO (1) | WO2008020526A1 (ja) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20100116079A (ko) * | 2009-04-21 | 2010-10-29 | 삼성전자주식회사 | 가변 확산 필름을 갖는 표시장치 |
| CN102201182A (zh) * | 2010-03-23 | 2011-09-28 | 宏碁股份有限公司 | 遮蔽装置与显示系统 |
| JP5954097B2 (ja) * | 2012-10-11 | 2016-07-20 | ソニー株式会社 | 表示装置 |
| CN105549238A (zh) * | 2016-03-01 | 2016-05-04 | 京东方科技集团股份有限公司 | 可切换防窥显示装置及背光源 |
| CN106802499A (zh) * | 2016-08-30 | 2017-06-06 | 苏州汉朗光电有限公司 | 防窥显示器 |
| TWI605287B (zh) * | 2016-12-29 | 2017-11-11 | 揚昇照明股份有限公司 | 顯示裝置 |
| CN106959807A (zh) | 2017-03-24 | 2017-07-18 | 北京小米移动软件有限公司 | 视角切换方法及装置 |
| CN109638063B (zh) * | 2019-01-15 | 2021-01-26 | 京东方科技集团股份有限公司 | 显示装置、显示方法和显示装置的制造方法 |
| JP6806227B1 (ja) * | 2019-07-30 | 2021-01-06 | Jnc株式会社 | 視野角調整素子用液晶組成物、視野角調整素子、および視野角調整可能な表示装置 |
| CN116841069A (zh) * | 2023-07-28 | 2023-10-03 | 惠科股份有限公司 | 显示模组、驱动方法和显示装置 |
Citations (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0876104A (ja) | 1994-09-02 | 1996-03-22 | Citizen Watch Co Ltd | 液晶表示パネル |
| JPH09197405A (ja) * | 1995-11-14 | 1997-07-31 | Sharp Corp | 視角特性制御型液晶表示装置 |
| JPH1184357A (ja) | 1997-09-08 | 1999-03-26 | Mitsubishi Electric Corp | 液晶表示装置 |
| JPH11142819A (ja) * | 1997-11-05 | 1999-05-28 | Hitachi Ltd | 液晶表示装置 |
| JPH11231794A (ja) * | 1997-11-24 | 1999-08-27 | Ncr Internatl Inc | 視覚的ディスプレイ及びそれを備えた自動金銭出納機 |
| JP2004348167A (ja) * | 2004-09-13 | 2004-12-09 | Hitachi Displays Ltd | 液晶表示装置 |
| JP2005265920A (ja) * | 2004-03-16 | 2005-09-29 | Seiko Epson Corp | 電気光学装置、電子機器 |
| JP2005274777A (ja) * | 2004-03-23 | 2005-10-06 | Sharp Corp | 液晶表示装置および電子機器 |
| JP2006011451A (ja) * | 2004-06-24 | 2006-01-12 | Au Optronics Corp | 視角調節可能液晶ディスプレイ |
| JP2006091871A (ja) * | 2004-09-24 | 2006-04-06 | Sharp Corp | プライバシーを保護するため表示を混乱させるパターン化された電極のあるゲストホスト液晶層 |
| JP2006140126A (ja) * | 2004-05-24 | 2006-06-01 | Nec Corp | 面状光源、表示装置、携帯端末装置及び光線方向切替素子 |
| JP2006222211A (ja) | 2005-02-09 | 2006-08-24 | Sony Corp | 半導体素子基板およびその製造方法、ならびに表示装置 |
| JP2006276197A (ja) * | 2005-03-28 | 2006-10-12 | Nec Corp | 光源装置及びそれを用いた表示装置、端末装置 |
| JP2006277999A (ja) * | 2005-03-28 | 2006-10-12 | Nec Corp | 光源装置、表示装置、端末装置及び光学部材 |
| JP2006285084A (ja) * | 2005-04-04 | 2006-10-19 | Nec Corp | 面状光源装置、表示装置、端末装置及び面状光源装置の駆動方法 |
| JP2006308700A (ja) * | 2005-04-26 | 2006-11-09 | Nec Corp | 表示装置、端末装置、光源装置及び光学部材 |
| JP2006310085A (ja) * | 2005-04-28 | 2006-11-09 | Fujitsu Kasei Kk | 光源ユニット及び光源ユニットを用いたディスプレイユニット |
| JP2006323031A (ja) * | 2005-05-17 | 2006-11-30 | Nec Corp | 視野角切替型表示装置及び端末装置 |
| JP2007003951A (ja) * | 2005-06-24 | 2007-01-11 | Nec Corp | 光学部材、光源装置、表示装置及び端末装置 |
| JP2007033813A (ja) * | 2005-07-26 | 2007-02-08 | Nec Corp | 光源装置、液晶表示装置及び端末装置 |
| JP2007041261A (ja) * | 2005-08-03 | 2007-02-15 | Nec Corp | 光学素子、光学装置、携帯情報端末及び製造方法 |
| JP2007047229A (ja) * | 2005-08-05 | 2007-02-22 | Nec Corp | 視野角可変液晶表示装置、方法及び端末機 |
| JP2007057979A (ja) * | 2005-08-25 | 2007-03-08 | Nec Corp | 視野角制御表示装置及び端末機並びに方法 |
| JP2007057925A (ja) * | 2005-08-25 | 2007-03-08 | Nec Corp | 光学素子、光源及び表示装置 |
| JP2007071953A (ja) * | 2005-09-05 | 2007-03-22 | Nec Corp | 表示装置、端末装置、光源装置及び光学部材 |
| JP2007079093A (ja) * | 2005-09-14 | 2007-03-29 | Nec Corp | 光源装置、表示装置、端末装置、光源ユニット及び光源装置の駆動方法 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5877829A (en) * | 1995-11-14 | 1999-03-02 | Sharp Kabushiki Kaisha | Liquid crystal display apparatus having adjustable viewing angle characteristics |
| US5831698A (en) * | 1996-08-20 | 1998-11-03 | International Business Machines Corporation | Electrically variable diffuser |
| JP2004061907A (ja) * | 2002-07-30 | 2004-02-26 | Koninkl Philips Electronics Nv | 半透過型液晶表示装置 |
| US20050179827A1 (en) * | 2004-02-17 | 2005-08-18 | Scharenbroch Gregory K. | Display system having electronically controlled viewing window |
| JP4536489B2 (ja) * | 2004-11-15 | 2010-09-01 | 株式会社 日立ディスプレイズ | 光学素子及びそれを用いた表示装置 |
| JP4600218B2 (ja) * | 2005-08-29 | 2010-12-15 | カシオ計算機株式会社 | 面光源及び液晶表示装置 |
-
2006
- 2006-08-17 JP JP2006222211A patent/JP2008046387A/ja active Pending
-
2007
- 2007-07-23 WO PCT/JP2007/064400 patent/WO2008020526A1/ja not_active Ceased
- 2007-07-23 US US12/376,608 patent/US20100182537A1/en not_active Abandoned
- 2007-07-23 CN CNA2007800306392A patent/CN101523283A/zh active Pending
- 2007-07-23 EP EP07791133A patent/EP2053457A4/en not_active Ceased
Patent Citations (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0876104A (ja) | 1994-09-02 | 1996-03-22 | Citizen Watch Co Ltd | 液晶表示パネル |
| JPH09197405A (ja) * | 1995-11-14 | 1997-07-31 | Sharp Corp | 視角特性制御型液晶表示装置 |
| JPH1184357A (ja) | 1997-09-08 | 1999-03-26 | Mitsubishi Electric Corp | 液晶表示装置 |
| JPH11142819A (ja) * | 1997-11-05 | 1999-05-28 | Hitachi Ltd | 液晶表示装置 |
| JPH11231794A (ja) * | 1997-11-24 | 1999-08-27 | Ncr Internatl Inc | 視覚的ディスプレイ及びそれを備えた自動金銭出納機 |
| JP2005265920A (ja) * | 2004-03-16 | 2005-09-29 | Seiko Epson Corp | 電気光学装置、電子機器 |
| JP2005274777A (ja) * | 2004-03-23 | 2005-10-06 | Sharp Corp | 液晶表示装置および電子機器 |
| JP2006140126A (ja) * | 2004-05-24 | 2006-06-01 | Nec Corp | 面状光源、表示装置、携帯端末装置及び光線方向切替素子 |
| JP2006011451A (ja) * | 2004-06-24 | 2006-01-12 | Au Optronics Corp | 視角調節可能液晶ディスプレイ |
| JP2004348167A (ja) * | 2004-09-13 | 2004-12-09 | Hitachi Displays Ltd | 液晶表示装置 |
| JP2006091871A (ja) * | 2004-09-24 | 2006-04-06 | Sharp Corp | プライバシーを保護するため表示を混乱させるパターン化された電極のあるゲストホスト液晶層 |
| JP2006222211A (ja) | 2005-02-09 | 2006-08-24 | Sony Corp | 半導体素子基板およびその製造方法、ならびに表示装置 |
| JP2006276197A (ja) * | 2005-03-28 | 2006-10-12 | Nec Corp | 光源装置及びそれを用いた表示装置、端末装置 |
| JP2006277999A (ja) * | 2005-03-28 | 2006-10-12 | Nec Corp | 光源装置、表示装置、端末装置及び光学部材 |
| JP2006285084A (ja) * | 2005-04-04 | 2006-10-19 | Nec Corp | 面状光源装置、表示装置、端末装置及び面状光源装置の駆動方法 |
| JP2006308700A (ja) * | 2005-04-26 | 2006-11-09 | Nec Corp | 表示装置、端末装置、光源装置及び光学部材 |
| JP2006310085A (ja) * | 2005-04-28 | 2006-11-09 | Fujitsu Kasei Kk | 光源ユニット及び光源ユニットを用いたディスプレイユニット |
| JP2006323031A (ja) * | 2005-05-17 | 2006-11-30 | Nec Corp | 視野角切替型表示装置及び端末装置 |
| JP2007003951A (ja) * | 2005-06-24 | 2007-01-11 | Nec Corp | 光学部材、光源装置、表示装置及び端末装置 |
| JP2007033813A (ja) * | 2005-07-26 | 2007-02-08 | Nec Corp | 光源装置、液晶表示装置及び端末装置 |
| JP2007041261A (ja) * | 2005-08-03 | 2007-02-15 | Nec Corp | 光学素子、光学装置、携帯情報端末及び製造方法 |
| JP2007047229A (ja) * | 2005-08-05 | 2007-02-22 | Nec Corp | 視野角可変液晶表示装置、方法及び端末機 |
| JP2007057979A (ja) * | 2005-08-25 | 2007-03-08 | Nec Corp | 視野角制御表示装置及び端末機並びに方法 |
| JP2007057925A (ja) * | 2005-08-25 | 2007-03-08 | Nec Corp | 光学素子、光源及び表示装置 |
| JP2007071953A (ja) * | 2005-09-05 | 2007-03-22 | Nec Corp | 表示装置、端末装置、光源装置及び光学部材 |
| JP2007079093A (ja) * | 2005-09-14 | 2007-03-29 | Nec Corp | 光源装置、表示装置、端末装置、光源ユニット及び光源装置の駆動方法 |
Non-Patent Citations (1)
| Title |
|---|
| See also references of EP2053457A4 * |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2008046387A (ja) | 2008-02-28 |
| CN101523283A (zh) | 2009-09-02 |
| EP2053457A1 (en) | 2009-04-29 |
| US20100182537A1 (en) | 2010-07-22 |
| EP2053457A4 (en) | 2010-04-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2008020526A1 (fr) | dispositif de traitement d'informations | |
| JP5114491B2 (ja) | 可変反射率を有するディスプレイ | |
| CN100416377C (zh) | 液晶显示设备以及配备有该液晶显示设备的电子设备 | |
| CN101960373B (zh) | 移动设备的双面显示器 | |
| CN108345139B (zh) | 视角可切换显示装置 | |
| EP2282491B1 (en) | Terminal, in particular mobile terminal having an LED backlight unit | |
| US6961105B2 (en) | Dual-display module with a tunable mirror sheet | |
| US20120162268A1 (en) | Transparent Display Active Panels | |
| US20120162269A1 (en) | Transparent Display Active Backlight | |
| AU2011348209A1 (en) | Transparent display backlight assembly | |
| WO2006049105A1 (ja) | 表示装置および電子装置 | |
| US20150153992A1 (en) | Active matrix organic light-emitting diode display and method of controlling display thereof | |
| KR20090034827A (ko) | 내부 및 외부 디스플레이를 갖는 모바일 전자 디바이스용 디스플레이 스택업 | |
| KR20050033624A (ko) | 반투과형 액정 디스플레이 디바이스 | |
| US20220397799A1 (en) | Backlight module, liquid crystal display screen, and using method thereof | |
| JP4232749B2 (ja) | 表示装置 | |
| CN115061299A (zh) | 液晶显示设备的防窥控制方法及液晶显示设备 | |
| JP4164077B2 (ja) | 光源ユニット及び光源ユニットを用いたディスプレイユニット | |
| CN1932590A (zh) | 照明装置及其方法 | |
| JP2002229499A (ja) | 情報処理装置及び液晶表示装置 | |
| JP2005070668A (ja) | 液晶表示装置、液晶表示装置を有する電子機器及び携帯端末機 | |
| JP5244044B2 (ja) | 携帯電子機器 | |
| JP5061727B2 (ja) | 情報処理装置 | |
| JP2003167228A (ja) | 半透過型液晶表示装置 | |
| JP2003329998A (ja) | 液晶表示装置 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WWE | Wipo information: entry into national phase |
Ref document number: 200780030639.2 Country of ref document: CN |
|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 07791133 Country of ref document: EP Kind code of ref document: A1 |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 12376608 Country of ref document: US |
|
| REEP | Request for entry into the european phase |
Ref document number: 2007791133 Country of ref document: EP |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 2007791133 Country of ref document: EP |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |
|
| NENP | Non-entry into the national phase |
Ref country code: RU |