Classifications

• • 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
• • 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
  • G09G3/2003—Display of colours
• • G—PHYSICS
  • G06—COMPUTING OR CALCULATING; COUNTING
  • G06F—ELECTRIC DIGITAL DATA PROCESSING
  • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
  • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
  • G06F3/011—Arrangements for interaction with the human body, e.g. for user immersion in virtual reality
  • G06F3/013—Eye tracking input arrangements
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  • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
  • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
  • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
  • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
• • 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
• • 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
• • H—ELECTRICITY
  • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
  • H05B33/00—Electroluminescent light sources
  • H05B33/02—Details
• • H—ELECTRICITY
  • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
  • H05B33/00—Electroluminescent light sources
  • H05B33/12—Light sources with substantially two-dimensional [2D] radiating surfaces
• • H—ELECTRICITY
  • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
  • H05B44/00—Circuit arrangements for operating electroluminescent light sources
• • H—ELECTRICITY
  • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
  • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
  • H05B45/60—Circuit arrangements for operating LEDs comprising organic material, e.g. for operating organic light-emitting diodes [OLED] or polymer light-emitting diodes [PLED]
• • H—ELECTRICITY
  • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
  • H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
  • H10D86/00—Integrated devices formed in or on insulating or conducting substrates, e.g. formed in silicon-on-insulator [SOI] substrates or on stainless steel or glass substrates
  • H10D86/40—Integrated devices formed in or on insulating or conducting substrates, e.g. formed in silicon-on-insulator [SOI] substrates or on stainless steel or glass substrates characterised by multiple TFTs
• • H—ELECTRICITY
  • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
  • H10H—INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS
  • H10H29/00—Integrated devices, or assemblies of multiple devices, comprising at least one light-emitting semiconductor element covered by group H10H20/00
  • H10H29/10—Integrated devices comprising at least one light-emitting semiconductor component covered by group H10H20/00
  • H10H29/14—Integrated devices comprising at least one light-emitting semiconductor component covered by group H10H20/00 comprising multiple light-emitting semiconductor components
  • H10H29/142—Two-dimensional arrangements, e.g. asymmetric LED layout
• • H—ELECTRICITY
  • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
  • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
  • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
• • G—PHYSICS
  • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
  • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
  • G09G2300/00—Aspects of the constitution of display devices
  • G09G2300/04—Structural and physical details of display devices
  • G09G2300/0421—Structural details of the set of electrodes
  • G09G2300/0426—Layout of electrodes and connections
• • G—PHYSICS
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  • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
  • G09G2300/00—Aspects of the constitution of display devices
  • G09G2300/04—Structural and physical details of display devices
  • G09G2300/0439—Pixel structures
• • G—PHYSICS
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  • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
  • G09G2300/00—Aspects of the constitution of display devices
  • G09G2300/08—Active matrix structure, i.e. with use of active elements, inclusive of non-linear two terminal elements, in the pixels together with light emitting or modulating elements
  • G09G2300/0809—Several active elements per pixel in active matrix panels
  • G09G2300/0842—Several active elements per pixel in active matrix panels forming a memory circuit, e.g. a dynamic memory with one capacitor
• • G—PHYSICS
  • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
  • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
  • G09G2300/00—Aspects of the constitution of display devices
  • G09G2300/08—Active matrix structure, i.e. with use of active elements, inclusive of non-linear two terminal elements, in the pixels together with light emitting or modulating elements
  • G09G2300/0809—Several active elements per pixel in active matrix panels
  • G09G2300/0842—Several active elements per pixel in active matrix panels forming a memory circuit, e.g. a dynamic memory with one capacitor
  • G09G2300/0852—Several active elements per pixel in active matrix panels forming a memory circuit, e.g. a dynamic memory with one capacitor being a dynamic memory with more than one capacitor
• • G—PHYSICS
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  • 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
  • G09G2320/0209—Crosstalk reduction, i.e. to reduce direct or indirect influences of signals directed to a certain pixel of the displayed image on other pixels of said image, inclusive of influences affecting pixels in different frames or fields or sub-images which constitute a same image, e.g. left and right images of a stereoscopic display
  • G09G2320/0214—Crosstalk reduction, i.e. to reduce direct or indirect influences of signals directed to a certain pixel of the displayed image on other pixels of said image, inclusive of influences affecting pixels in different frames or fields or sub-images which constitute a same image, e.g. left and right images of a stereoscopic display with crosstalk due to leakage current of pixel switch in active matrix panels
• • G—PHYSICS
  • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
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  • G09G2320/06—Adjustment of display parameters
  • G09G2320/0626—Adjustment of display parameters for control of overall brightness
• • G—PHYSICS
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  • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
  • G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
  • G09G2330/02—Details of power systems and of start or stop of display operation
  • G09G2330/021—Power management, e.g. power saving
• • G—PHYSICS
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  • G09G2340/00—Aspects of display data processing
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  • G09G2340/0457—Improvement of perceived resolution by subpixel rendering
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  • G09G2354/00—Aspects of interface with display user
• • G—PHYSICS
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  • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
  • G09G2380/00—Specific applications
  • G09G2380/10—Automotive applications

Definitions

• the present disclosure relates to display devices and electronic devices.
• the human eye has a macula region on the retina where photoreceptor cells, especially cone cells, are densely arranged, and the shape and color of what we are seeing can be determined by the light that enters this region.
• the fovea corresponds to the central region of the macula, and contributes to vision in the central visual field of humans.
• a person's visual field has the highest definition centered around the position of light incident on the fovea, and gradually becomes blurred as it goes from the center to the periphery.
• Foveated Rendering is a technology that takes into account the characteristics of people's visual field and renders images, images, etc., especially in the field of XR (Extended Reality) such as VR (Virtual Reality).
• Foveated rendering is a method that outputs a high-resolution image toward the center of the visual field, where a person can obtain a high-definition image, and outputs an image with lower resolution in the peripheral visual field.
• This method is often implemented mainly at the timing when an image is generated by a processing circuit. Foveated rendering makes it possible to reduce the cost of image processing in a computer.
• the present disclosure provides at least a partial implementation for a display device that achieves foveated rendering with low power consumption.
• a display device includes a plurality of pixels, a first signal line, a first circuit, a second signal line, a second circuit, a third signal line, a third circuit, and a switch. and.
• the plurality of pixels are arranged in a two-dimensional array of lines and columns.
• the first signal line extends along the direction of the line and connects to the plurality of pixels belonging to the line.
• the first circuit is connected to the first signal line.
• the second signal line extends along the direction of the column and connects to the plurality of pixels belonging to the column.
• the second circuit is connected to the second signal line.
• the third signal line extends along the direction of the column and connects to the plurality of pixels belonging to a column adjacent to the column to which the second signal line connects.
• the third circuit is connected to the third signal line.
• the switch switches electrical connection between the second signal line or the second circuit and the third signal line.
• the first signal line may be arranged for each line, and the second signal line and the third signal line connected via the switch may be arranged for every two columns.
• the pixel may include a light emitting element that emits light of a plurality of colors, and the second signal line may extend along the column direction for each of the plurality of colors for the same pixel, The third signal line may extend along the column direction for each of a plurality of colors for the same pixel, and may be connected to the second signal line connected to the light emitting element of the same color via a switch. It may be connectable.
• the first circuit may output a signal for driving the pixels, and output a driving signal for each first signal line to the first signal line connected to the plurality of pixels belonging to a predetermined area.
• a drive signal may be output for every predetermined number of first signal lines to the first signal lines that are not connected to the pixels belonging to the predetermined area.
• the first circuit may output a drive signal for doubler driving in the first signal line that is not connected to the pixel belonging to the predetermined area.
• the third signal line connected to the pixel belonging to the predetermined area may be electrically disconnected from the second signal line, and the third signal line not connected to the pixel belonging to the predetermined area is connected to the switch. It may be electrically connected to the second signal line via a.
• the third circuit does not need to output a signal for controlling the light emission intensity of the pixel to the third signal line that is not connected to the pixel belonging to the predetermined area.
• the display device may further include a fourth circuit that switches the switch, and the fourth circuit switches the switch to connect the third signal line to the pixel belonging to the predetermined area.
• the third signal line which is electrically disconnected from the second signal line and is not connected to the pixel belonging to the predetermined area, is connected to the second circuit directly or via the second signal line. Good too.
• the display device may further include a fifth circuit that is connected to the third circuit and compares the voltage output from the third circuit with a predetermined voltage, and the third circuit belongs to the predetermined area.
• the third signal line connected to the pixel may output a signal for controlling the light emission intensity of the pixel having a voltage equal to or higher than the predetermined voltage, or a first offset voltage, and may be connected to the pixel belonging to the predetermined area.
• a signal lower than the predetermined voltage or a second offset voltage may be output to the unconnected third signal line, and the fifth circuit switches the switch based on the result of the comparison,
• the third signal line may be selectively connected to the second circuit.
• the fifth circuit may electrically disconnect the second signal line and the third signal line by switching the switch and when the voltage applied to the third signal line is equal to or higher than a predetermined voltage. Often, when the voltage applied to the third signal line is less than a predetermined voltage, the second circuit and the third signal line are electrically connected directly or via the second signal line. You may let them.
• the switch may switch the connection between either the second circuit or the third circuit and the third signal line.
• the second circuit may be connected to the second signal line and the corresponding third signal line through the same amplifier.
• an electronic device includes the display device described above and a sensor that acquires the position of a person's line of sight on the display device, and the predetermined area is directed toward the person's line of sight.
• the fourth circuit obtains the position of the predetermined region from the output of the sensor, and selectively switches the switch based on the position of the predetermined region.
• an electronic device includes the display device described above and a sensor that acquires the position of a person's line of sight on the display device, and the predetermined area is directed toward the person's line of sight.
• the third circuit obtains the position of the predetermined region from the output of the sensor, and based on the position of the predetermined region, the third circuit is a region including the pixels corresponding to the predetermined voltage.
• a signal for controlling the light emission intensity of the pixel or a signal having a voltage less than the predetermined voltage is output.
• FIG. 1 is a diagram schematically showing an example of a display device according to an embodiment.
• FIG. 2 is a diagram schematically showing an example of a connection relationship in a display device according to an embodiment.
• FIG. 3 is a diagram schematically showing an example of pixel display according to an embodiment.
• FIG. 3 is a diagram schematically showing an example of pixel display according to an embodiment.
• FIG. 3 is a diagram schematically showing an example of pixel display according to an embodiment.
• FIG. 2 is a diagram schematically showing an example of a connection relationship in a display device according to an embodiment.
• FIG. 2 is a diagram schematically showing an example of a connection relationship in a display device according to an embodiment.
• FIG. 2 is a diagram schematically showing an example of a connection relationship in a display device according to an embodiment.
• FIG. 1 is a diagram schematically showing an example of a display device according to an embodiment.
• FIG. 2 is a diagram schematically showing an example of a connection relationship in a display
• FIG. 2 is a diagram schematically showing an example of a connection relationship in a display device according to an embodiment.
• FIG. 2 is a diagram schematically showing an example of a connection relationship in a display device according to an embodiment.
• FIG. 2 is a diagram schematically showing an example of a connection relationship in a display device according to an embodiment.
• FIG. 2 is a diagram schematically showing an example of a connection relationship in a display device according to an embodiment.
• FIG. 2 is a diagram schematically showing an example of a connection relationship in a display device according to an embodiment.
• FIG. 2 is a diagram schematically showing an example of a connection relationship in a display device according to an embodiment.
• FIG. 3 is a diagram illustrating an example of a timing chart of a portion of a display device according to an embodiment.
• FIG. 1 is a diagram schematically showing an example of an electronic device including a display device according to an embodiment.
• FIG. 1 is a diagram schematically showing an example of a pixel circuit according to an embodiment.
• FIG. 1 is a diagram schematically showing an example of a pixel circuit according to an embodiment.
• FIG. 1 is a diagram schematically showing an example of a pixel circuit according to an embodiment.
• FIG. 1 is a diagram schematically showing an example of a pixel circuit according to an embodiment.
• FIG. 1 is a diagram schematically showing an example of a pixel circuit according to an embodiment.
• FIG. 1 is a diagram schematically showing an example of a pixel circuit according to an embodiment.
• FIG. 1 is a diagram schematically showing an example of a pixel circuit according to an embodiment.
• FIG. 1 is a diagram schematically showing an example of a pixel circuit according to an embodiment.
• FIG. 1 is a diagram schematically showing an example of a pixel circuit according to an embodiment.
• FIG. 3 is a diagram showing the inside of the vehicle from the rear to the front of the vehicle. A diagram showing the interior of the vehicle from diagonally rearward to diagonally forward.
• FIG. 3 is a front view of a digital camera, which is a second application example of electronic equipment. Rear view of the digital camera.
• An external view of an HMD which is a third application example of electronic equipment.
• An external view of a TV which is a fourth application example of electronic equipment.
• External view of a smartphone which is the fifth application example of electronic devices.
• to connect mainly means to connect electrically, and when it is simply stated to connect, even if “electrically” is not explicitly indicated. , depending on the context, means maintaining an appropriate electrical connection state.
• FIG. 1 is a diagram schematically showing a display device according to an embodiment.
• the display device 1 includes a pixel array 10, a first circuit 12, a second circuit 14, and a third circuit 16. Although not shown in the figure, the display device 1 is appropriately equipped with a control circuit that performs separate control, a power supply circuit that supplies power supply voltage to each circuit, and the like.
• the pixel array 10 includes a plurality of pixels 100.
• the 100 pixels are arranged in a two-dimensional array in the line direction (first direction) and column direction (second direction).
• Each pixel 100 includes a pixel circuit including a light emitting element.
• the pixel 100 emits light based on a drive signal input to the pixel circuit and a signal indicating the light emission intensity.
• the pixels 100 may each include a light emitting element that emits light in RGB colors, for example.
• the first circuit 12 is a horizontal drive circuit connected to each of the pixels 100 arranged along the line direction via a signal line extending in the line direction.
• the first circuit 12 controls the driving of the pixels 100 for each line via this signal line.
• the second circuit 14 is a vertical drive circuit connected to each of the pixels 100 arranged along the column direction via a signal line extending in the column direction.
• the second circuit 14 controls the light emission intensity of the pixels 100 for each column via this signal line.
• the second circuit 14 and the pixel 100 are connected via signal lines for each light emitting element that emits light of each color, which is provided in each pixel 100.
• the third circuit 16 is a vertical drive circuit of a different system from the second circuit 14, which is connected to each of the pixels 100 arranged along the column direction via a signal line extending in the column direction.
• the third circuit 16 controls the light emission intensity of the pixels 100 for each column via this signal line.
• the third circuit 16 and the pixel 100 are connected via signal lines to each light emitting element that emits light of each color, which is provided in each pixel 100.
• the second circuit 14 and the third circuit 16 are connected to signal lines that transmit signals to the pixels alternately for each column, for example.
• the display device 1 displays images, images, etc. by causing the pixels 100 to emit light in the line selected by the first circuit 12 based on the luminous intensity output from the second circuit 14 or the third circuit 16. .
• the second circuit 14 and the third circuit 16 may be provided with a separate driver that distributes and outputs image-related signals, for example, signals indicating the intensity of emitting light from each pixel 100.
• FIG. 2 is a diagram showing an example of the connection between a part of the pixel 100 and the first circuit 12 and the second circuit 14.
• each pixel 100 includes a sub-pixel 100R that emits R (red) light, a sub-pixel 100G that emits G (green) light, and a sub-pixel 100B that emits B (blue) light. , is provided.
• the arrangement of sub-pixels that emit light of each color may be a stripe arrangement, but may also be another arrangement such as a pentile arrangement.
• the pixel 100 includes a sub-pixel having a light-emitting element that emits light in the three primary colors of RGB, but may further include a sub-pixel having a light-emitting element that emits light in other colors.
• the first circuit 12 is connected to the sub-pixels of each pixel 100 that emit light of each color via the first signal line 120 .
• the first signal line 120 extends in the line direction, and pixels 100 belonging to the same line are connected to the same first signal line 120.
• the second circuit 14 is connected to the sub-pixels of each pixel 100 that emit light of each color via the second signal line 140.
• the second signal line 140 extends in the column direction, and pixels 100 belonging to the same column are connected to the same second signal line 140.
• the third circuit 16 is connected to the sub-pixels of each pixel 100 that emit light of each color via the third signal line 160.
• the third signal line 160 extends in the column direction, and pixels 100 belonging to the same column are connected to the same third signal line 160.
• the second signal line 140 and the third signal line 160 are arranged alternately for each column, for example.
• the second signal line 140 and the third signal line 160 are arranged as a set of these two signal lines.
• the second signal line 140 belonging to the leftmost column and the third signal line 160 belonging to the column adjacent to the right form one set of signal lines.
• the second signal line 140 and the third signal line 160 may be arranged every two columns.
• the third signal line 160 is connected to the third circuit 16 and can also be connected to the corresponding second signal line 140 via the switch 18 . More specifically, the second signal line 140 and the third signal line 160 for sub-pixels having light emitting elements of the same color can be connected via the switch 18 .
• the second signal line 140 will be given an odd number, and the third signal line 160 will be given an even number.
• the third signal line 160 can be connected to the second signal line 140 whose number is one number before the number of the third signal line 160 through the switch 18 .
• FIG. 3 is a diagram schematically showing an example of a part of a display area of a display device according to an embodiment.
• Pixels 100 belonging to the same column are connected to the same second signal line 140, as described above.
• the pixels 100 belonging to the column adjacent to this column are connected to the same third signal line 160.
• the switch is controlled so that the third signal line 160 is electrically disconnected from the corresponding second signal line 140.
• a pixel 100 belonging to a line driven by a first circuit 12 transmits a signal indicating the luminescence intensity at the pixel output from a second circuit 14 and a third circuit 16 to a second signal line 140 or a line driven by a first circuit 12 (not shown), respectively.
• the first circuit 12 drives the pixels 100 appropriately for each line, and controls the pixels 100 to emit light based on the signal obtained from the second circuit 14 or the third circuit 16.
• the pixel 100 receives light emission intensity from each pixel via the signal line, and causes the light emitting element within the pixel 100 to emit light in accordance with this light emission intensity. Note that the above eliminates the control in which the first circuit 12 drives two lines at the same timing and transmits a signal indicating the intensity of light emitted at each separate pixel 100 to the pixels 100 belonging to each line. isn't it.
• the pixel 100 may include sub-pixels that each emit light of a different color.
• the display device 1 transmits signals related to the emitted light intensity from the second circuit 14 and the third circuit 16 to the pixel 100 without thinning out.
• Each pixel 100 causes a light emitting element to emit light at an appropriate intensity based on the signal received from the second circuit 14 or the third circuit 16 .
• FIG. 4 is a diagram schematically showing an example of a part of a display area of a display device according to an embodiment.
• FIG. 4 shows the connection between the pixel 100 and the circuit for a predetermined area 102 to which the pixel 100 that outputs at high resolution (resolution in normal state) belongs and the surrounding area.
• Solid lines indicate boundaries of regions with different resolutions, and dashed lines indicate boundaries of 100 pixels.
• the predetermined area 102 is, for example, an area based on the visual field of the person viewing the display device 1 .
• images and images in this predetermined area 102 may be set to high resolution, and images and images in other areas may be lower in resolution than the predetermined area 102 .
• 6 ⁇ 6 pixels are set as the pixel 100 belonging to the predetermined area 102, but this is shown as an example without limitation.
• the predetermined area 102 may be a larger area such as 32 x 32 pixels, or a horizontally elongated area such as 32 x 64 pixels. These numerical values are also given as non-limiting examples, and the number of pixels set as the predetermined area 102 can be arbitrarily changed within an appropriate range.
• the pixels 100 belonging to the predetermined area 102 are controlled in the same manner as in FIG. 3 by the first circuit 12, second circuit 14, and third circuit 16 (not shown), and one color is reproduced per pixel. As a result, a high-resolution image or image similar to that in the normal state is displayed in this predetermined area 102 .
• a signal indicating the same luminescence intensity is output from the first circuit 12 for every predetermined number of lines.
• the predetermined number of lines may be, for example, 2 lines.
• lines that do not include the predetermined area 102 are driven by so-called doubler driving.
• the first circuit 12 outputs a signal that drives the pixel.
• the first circuit 12 outputs a drive signal for each first signal line 120 to the first signal line 120 connected to the pixel 100 belonging to the predetermined area 102 .
• the first circuit 12 may output a drive signal for every predetermined number of first signal lines 120 to the first signal lines 120 that are not connected to the pixels 100 belonging to the predetermined area 102 .
• the predetermined number may be 2 or more. Furthermore, as will be described later, the number may change depending on the relationship with the predetermined area 102 .
• the lines placed above and below the predetermined area 102 output an image or image having a resolution at least 1/2 of that of the predetermined area 102 . Therefore, in the column direction, for example, it is possible to use the output from the same amplifier for the pixels 100 for two lines, and the power consumption of the first circuit 12 in areas other than the predetermined area 102 can be reduced by doubler processing. is possible.
• Pixel 100 belonging to the column is also controlled in the same way as the processing for this line. For example, for the pixel 100 belonging to the predetermined area 102, the second circuit 14 and the third circuit 16 output a signal indicating the respective luminescence intensity to each column (pixel 100). On the other hand, in other areas, signals with image and video information thinned out are output.
• the second circuit 14 outputs a signal indicating the luminescence intensity in the same way as in the normal state even in columns connected to pixels 100 belonging to areas other than the predetermined area 102 .
• the second circuit 14 outputs a signal indicating the light emission intensity of the pixel 100 in the line selected by the first circuit 12 to the pixel 100 via the second signal line 140, as in the normal state.
• the third circuit 16 switches the control method between the column connected to the pixel 100 belonging to the predetermined area 102 and the other columns.
• the third circuit 16 may stop the operation of a circuit such as an amplifier connected to a column that is not connected to the pixel 100 belonging to the predetermined area 102.
• the pixel 100 stops emitting light, but in order to interpolate this, the third signal line 160, whose output from the third circuit 16 is stopped, is connected to the third signal line 160 via the switch 18. Connect with the second signal line 140 corresponding to 160.
• the third signal line 160 connected to the pixel 100 belonging to the predetermined area 102 is electrically disconnected from the second signal line 140, and the output from the third circuit 16 is propagate to pixel 100.
• the third signal line 160 that is not connected to the pixel 100 belonging to the predetermined area 102 is electrically connected to the second signal line 140 via the switch 18 and propagates the output from the second circuit 14 to the pixel 100. do.
• the third circuit 16 does not need to output a signal for controlling the emission intensity to the third signal line 160 connected to the second signal line 140. Furthermore, the operation of amplifiers and the like connected to these third signal lines 160 may be stopped.
• the second circuit 14 and the third circuit 16 it is possible to thin out the signals to be output in areas other than the predetermined area 102.
• the second signal line 140 and the third signal line 160 are connected 1:1 via switch 18, in columns that do not include the specified area 102, the output signal is thinned out to 1/2, and the power consumption is can be lowered to about 1/2.
• the resolution is 1/2 except for columns belonging to the specified area 102.
• the first circuit 12 there are areas that belong to columns that belong to the predetermined area 102 and belong to lines that do not belong to the predetermined area 102, and areas that belong to lines that belong to the predetermined area 102 and belong to columns that do not belong to the predetermined area 102.
• the resolution of the area is 1/2.
• the control signals propagated in the line direction and column direction, respectively are 1/2, so the resolution is 1/4.
• the switch 18 sets a high-resolution area and a low-resolution area for each area as described above. can do.
• switching of the switch as described above is executed. This switching may be performed in units of frames or in units of signal output to lines.
• FIG. 5 is a diagram showing a state when the predetermined area 102 is moved to a position different from that in FIG. 4.
• the display device 1 may switch the switch 18 at the timing when it detects that the predetermined area 102 has moved. In this way, by switching the switch 18 at the timing when the display device 1 detects that the predetermined area 102 has moved, the movement of the predetermined area 102 is appropriately reflected from the line next to the currently controlled line. You can switch the display according to the selected resolution.
• the switch 18 may be switched at the timing when it is detected that the predetermined area 102 has moved and the frame processing is completed. By doing this, it is also possible to switch the display for each frame processed.
• the doubler processing from the first circuit 12 may be switched at the same timing as the switch 18 is switched.
• the switch 18 By controlling the switch 18 on a frame-by-frame basis, the cost of controlling the switch 18 can be reduced, and by controlling the switch 18 on a line-by-line basis, it is possible to set a high-resolution area that follows changes in the field of view more quickly. I can do it.
• the resolution was controlled to be 1, 1/2, and 1/4 in the predetermined area 102, the area where the column or line overlaps with the predetermined area 102, and other areas, respectively. , but not limited to this.
• the areas may be further subdivided instead of these three areas.
• an area may be set whose resolution in the column direction and/or line direction is 1/4 depending on the distance from the predetermined area 102 . This ratio of 1/4 is also shown as an example without limitation, and does not exclude thinning out the voltage applied to the signal line at a ratio other than 1/4.
• Multiple display devices 1 may operate synchronously. In this case, similar processing can be performed for the predetermined area 102 set in both display devices 1 .
• one display device 1 may be divided into two display areas.
• a predetermined area 102 is set in each display area, and the first circuit 12, second circuit 14, and 3 Circuit 16 and switch 18 may operate.
• one first circuit 12 may be provided to control the same line in two display areas.
• the first circuit 12 may be provided one for each of the two display areas.
• FIG. 6 is a diagram showing a non-limiting example of the connection between the pixel 100 and each circuit according to one embodiment.
• the first circuit 12 includes a first signal line 120 for each line.
• the first signal line 120 is connected to each of the pixels 100 belonging to the same line.
• Each pixel 100 receives a drive signal from the first circuit 12 via the first signal line 120 and drives the light emitting element based on this drive signal.
• the first circuit 12 When the predetermined area is set, the first circuit 12 appropriately performs control to output the same drive signal to a predetermined number of lines, for example, doubler control, as in the embodiment described above.
• the second circuit 14 includes a second signal line 140 every two columns.
• the second signal line 140 is connected to each of the pixels 100 belonging to the same column.
• Each pixel 100 obtains a signal indicating the light emission intensity from the second circuit 14 via the second signal line 140, and causes the light emitting element to emit light based on this signal.
• the third circuit 16 includes a third signal line 160 every two columns.
• the third signal line 160 is arranged in the inner column where the second signal line 140 is arranged.
• the third signal line 160 is connected to each of the pixels 100 belonging to the same column.
• Each pixel 100 obtains a signal indicating the luminescence intensity from the third circuit 16 via the third signal line 160 or from the second circuit 14 via the switch 18 and the second signal line 140, and applies the signal to this signal.
• the light emitting element emits light based on the light emitting element.
• the switch 18 is a switch that changes the connection relationship between the third signal line 160 and the second signal line 140, but in this embodiment, the switch 18 is a switch that changes the connection between the third signal line 160 and the second signal line 140. 16 Also changes the connection relationship with . The switch 18 switches whether the third signal line 160 is connected to the third circuit 16 or the second signal line 140.
• the switch 18 exclusively switches whether the third signal line 160 is connected to the second signal line 140 or the third circuit 16 during the period of transferring pixel signals.
• the third signal line 160 may switch the connection relationship with the second signal line 140 and the third circuit 16 by using the switch 18 .
• the switch 18 By controlling in this way, it is possible to disconnect the third signal line 160 from circuits such as amplifiers that are stopped in the third circuit 16 at an appropriate timing, thereby suppressing increases in power consumption due to leakage current, etc. becomes possible.
• FIG. 7 is a diagram illustrating a non-limiting example of connections between the pixel 100 and each circuit according to an embodiment. Descriptions of parts that are not particularly changed from the connections in the embodiment described above may be omitted hereinafter.
• the second circuit 14 and the third circuit 16 are arranged at different positions.
• the second circuit 14 and the third circuit 16 may be arranged to sandwich the pixel array 10 in which the pixels 100 are arranged in the column direction, for example, as shown in FIG. 7.
• this is shown as an example, and the arrangement is not limited to this arrangement.
• the second circuit 14 and the third circuit 16 may be located at different locations.
• the switch 18 switches the connection between the third signal line 160 and the second signal line 140 on the second circuit 14 side.
• the second circuit 14 and the third circuit 16 may not be placed at the same position with respect to the pixel 100, but may be placed at different positions. By being able to change the arrangement in this way, it is also possible to widen the range of layout choices in circuit design.
• the third signal line 160 may also be provided with a switch on the third circuit 16 side.
• the switch 18 on the second signal line 140 side and the switch on the third circuit 16 side may be controlled to operate synchronously.
• the internal circuits of the second circuit 14 and the third circuit 16 are not particularly limited.
• the second circuit 14 and the third circuit 16 may each include one amplifier for the second signal line 140 and the third signal line 160 to which they are connected.
• a configuration may be adopted in which amplifiers corresponding to a plurality of signal lines are provided and a signal line to be output is selected by a selector.
• FIG. 8 is a diagram illustrating a non-limiting example of connections between the pixel 100 and each circuit according to an embodiment.
• the second circuit 14 includes an amplifier 142.
• the amplifier 142 amplifies and outputs a signal indicating the luminescence intensity for the pixels 100 belonging to a plurality of columns.
• the third circuit 16 includes an amplifier 162.
• the amplifier 162 amplifies and outputs a signal indicating the luminescence intensity for the pixels 100 belonging to a plurality of columns.
• These amplifiers may be equipped with switches for outputting to the respective signal lines and driven as selectors.
• the switch 18 switches between connecting the third signal line 160 with the third circuit 16 or the second signal line 140 at an appropriate timing.
• the output destination of the amplifier may be the pixel 100 spanning multiple columns.
• the amplifier is connected to the signal lines for two columns, but the amplifier is not limited to this, and the amplifier may be connected to the signal lines for three or more columns. It's okay. The same applies to the embodiments described below.
• the switch that operates as a selector connected to the amplifier 162 of the third circuit 16 may operate in synchronization with the switch 18, similar to the configuration in FIG. In this case, the amplifier 162 can stop operating at the timing when the third signal line 160 is disconnected.
• FIG. 9 is a diagram illustrating a non-limiting example of connections between the pixel 100 and each circuit according to an embodiment. Similar to the third embodiment described above, the second circuit 14 and the third circuit 16 include amplifiers 142 and 162, respectively. On the other hand, the third circuit 16 is not placed in the same area as the second circuit 14, but at a different position, similar to FIG.
• the switch 18 connects and disconnects the third signal line 160 and the second signal line 140 at appropriate timing. Similar to the modification of the third embodiment described above, the switch connected to the amplifier 162 and operating as a selector may operate in synchronization with the switch 18 connected to the same third signal line 160. Furthermore, the amplifier 162 can stop operating if it is disconnected from the third signal line 160 .
• FIG. 10 is a diagram showing a non-limiting example of the connection between the pixel 100 and each circuit according to one embodiment. Similar to the fifth embodiment described above, the second circuit 14 and the third circuit 16 include amplifiers 142 and 162, respectively.
• the switch that operates as the selector of the amplifier 142 of the second circuit 14 is arranged with the switch surrounded by a broken line.
• the third signal line 160 may be directly connected to the amplifier 142 of the second circuit 14 via the switch 18 at an appropriate time. That is, a part of the switch that operates as a selector for the output of the second circuit 14 may be operated as the switch 18 .
• the second circuit 14 may be connected to the second signal line 140 and the third signal line 160 in the same amplifier 142. That is, the second circuit 14 may be connected to the second signal line 140 and the third signal line 160 corresponding to the second signal line 140 via the same amplifier 142.
• a switch that changes the connection state between the third signal line 160 and the second circuit 14 can be placed as part of the switch that selects the output from the amplifier 142.
• FIG. 11 is a diagram showing a non-limiting example of the connection between the pixel 100 and each circuit according to an embodiment.
• the display device 1 includes a fourth circuit 20.
• the fourth circuit 20 is a circuit that operates as a timing controller that controls the switch 18.
• the fourth circuit 20 sets a predetermined area 102 based on position information received from an external sensor, and acquires information on columns belonging to the predetermined area 102. Furthermore, as another example, information about the set predetermined area 102 or information about columns belonging to the predetermined area 102 may be acquired from outside.
• the fourth circuit 20 outputs a signal for switching the switch 18 to the switch 18 based on the acquired information of the column belonging to the predetermined area 102 .
• the switch 18 switches the connection between the third signal line 160 and the second signal line 140 or the second circuit 14 based on the information obtained from the fourth circuit 20.
• the switch 18 appropriately connects the third signal line 160 and the third circuit 16 based on the control from the fourth circuit 20. Switch between connection and disconnection appropriately.
• the fourth circuit 20 switches the switch 18 to connect the third signal line 160 to the pixel 100 belonging to the predetermined area 102 to the second signal line 140 or the second circuit.
• the third signal line 160 that is not connected to the pixel 100 belonging to the predetermined area 102 is connected to the second circuit 14 via the second signal line 140 or directly.
• the arrangement is not limited to this. 16 may be provided. That is, the connection relationship between the pixel 100, the second circuit 14, the second signal line 140, the third circuit 16, the third signal line 160, and the switch 18 may be in accordance with any of the embodiments described above. This also applies to the following embodiments.
• the fourth circuit 20 is provided to switch the switch 18, but in this embodiment, another example of a circuit that performs switching control of the switch 18 will be described.
• FIG. 12 is a diagram showing a non-limiting example of connections between the pixel 100 and each circuit according to an embodiment.
• the display device 1 includes a fifth circuit 22.
• the fifth circuit 22 is a circuit that operates as a comparator that outputs a signal for controlling the switch 18 .
• the fifth circuit 22 is connected to the third circuit 16 via the third signal line 160, for example, and compares the voltage output from the third circuit 16 with a predetermined voltage. Based on this comparison result, a signal for switching switch 18 is output.
• the fifth circuit 22 is, for example, a differential amplifier that compares the voltage applied to the third signal line 160 with a predetermined voltage, amplifies the comparison result to a voltage sufficient to switch the switch 18, and outputs it. It may be.
• the third circuit 16 applies a voltage higher than a predetermined voltage to the third signal line 160 belonging to the predetermined area 102 .
• This voltage may be a signal that controls the light emission intensity of the pixel, or may be a first offset voltage that is equal to or higher than a predetermined voltage at a timing before transferring the signal that controls the light emission intensity.
• the third circuit 16 applies a voltage lower than the predetermined voltage to the third signal line 160 that does not belong to the predetermined area 102 .
• this voltage may be a voltage lower than the signal value indicating that the light emission intensity is the lowest value, or a voltage lower than the predetermined voltage at the timing before transmitting the signal controlling the light emission intensity. 2 May be offset voltage.
• the voltage lower than the signal value indicating that the emission intensity is the lowest value or this second offset voltage may be a ground voltage.
• the fifth circuit 22 switches the switch 18 based on the voltage output from the third circuit 16 applied via the third signal line 160 to appropriately connect the third signal line 160 and the second signal line 140. Selectively connect and disconnect (selectively connect).
• the fifth circuit 22 can compare the predetermined voltage and the offset voltage at the timing when the offset voltage is applied, and output a switching signal for the switch 18 based on the comparison result. .
• the fifth circuit 22 can output a signal to switch the switch 18 using a signal appropriately indicating the luminescence intensity.
• the third circuit 16 stops the operation of the circuit for outputting the signal to the column for which the signal is to be thinned out, and performs the operation corresponding to this column.
• the third signal line 160 may be connected to the ground voltage.
• FIG. 13 is a diagram showing another embodiment of the fifth circuit 22.
• the display device 1 may also have a switch 18 having the same configuration as the switch 18 shown in FIG.
• the fifth circuit 22 is connected to the third signal line 160 upstream of the pixel 100 and the switch 18.
• the fifth circuit 22 appropriately amplifies and outputs the comparison result, and switches the switch 18 to connect the third signal line 160 to the third circuit 16 or connect the second signal line 140 (or It is also possible to switch exclusively whether the connection is made (directly with the second circuit 14) or not.
• the switch 18 can be appropriately switched based on the pixel value without separately providing a circuit and wiring for outputting an enable signal as in the circuit shown in the sixth embodiment.
• the predetermined area 102 is set by the third circuit 16 or a driver provided before the third circuit 16, and appropriate intensity information or an appropriate offset voltage is output from the third circuit 16. shall be.
• the fifth circuit 22 switches the switch 18 so that when the voltage applied to the third signal line 160 at a predetermined timing is equal to or higher than a predetermined voltage, the fifth circuit 22 2
• the signal line 140 and the third signal line 160 are electrically disconnected, and if the voltage is less than a predetermined voltage, the second circuit 14 and the third signal line 160 are connected via the second signal line 140 or directly. electrically connect the
• FIG. 14 is a diagram showing an example of a timing chart when the fifth circuit 22 controls the switch 18 using an offset voltage.
• the third circuit 16 applies an offset voltage to each pixel 100 before transferring a pixel signal indicating the luminescence intensity for each pixel 100.
• the third circuit 16 applies an offset voltage of a predetermined voltage Vth or more to columns belonging to the predetermined area 102 or in normal display mode (high resolution display mode). After applying this offset voltage, transfer of pixel signals is started.
• the third circuit 16 applies an offset voltage less than the predetermined voltage Vth, for example, a ground voltage, to columns that do not belong to the predetermined region 102 in the foveated rendering mode. After applying this offset voltage, the third circuit 16 does not need to output a signal to the column to be thinned out.
• the third circuit 16 may stop the operation of the circuit that outputs to the third signal line 160 connected to the target column. In this case, the target third signal line 160 may be connected to the ground voltage.
• the third circuit 16 sets the predetermined voltage Vth in this way and applies an appropriate offset voltage to the third signal line 160, thereby allowing the fifth circuit 22 to appropriately switch the switch 18.
• the third circuit 16 may output the pixel signal in the form of a pulse-shaped analog signal, or may output the pixel signal in the form of a ramp signal, for example.
• FIG. 15 is a diagram schematically showing a non-limiting example of an electronic device 3 equipped with a display device 1.
• the electronic device 3 includes a display device 1 and a sensor 30.
• the sensor 30 is a sensor that acquires information regarding the visual field of the person observing the display surface of the display device 1 .
• the sensor 30 may include, for example, a laser that tracks the direction of a person's eyes and a light receiving element.
• the laser and the light receiving element may have a form in which the relative position with respect to the display surface is known, or may have a form in which the relative position is measured before the display device 1 starts operating. It's okay.
• the sensor 30 detects which position or area on the display surface the person is gazing at by tracking the direction in which the person's eyes are facing. That is, the sensor 30 senses the position (position of a pixel) or area of the human visual field on the display surface. Information regarding the position of this visual field can be read from, for example, the direction of a person's line of sight by estimating the direction of the person's line of sight based on information obtained by tracking eye movements. The sensor 30 transmits information regarding the acquired position to the display device 1 .
• the senor 30 may output information regarding the direction of the person's line of sight, and the display device 1 may estimate the position of the pixel in the direction of the line of sight.
• the display device 1 generates a signal to appropriately drive the switch 18 based on the information received from the sensor 30 .
• the display device 1 When the display device 1 includes the fourth circuit 20, the display device 1, for example, defines a predetermined area surrounding the pixel 100, centering on the position of the pixel 100 corresponding to the direction in which the person's line of sight is facing. Set area 102. The display device 1 may set an area starting from the second signal line 140 in the line direction as the predetermined area 102 .
• the display device 1 calculates the center pixel 100 of the predetermined area 102 from the received information on the direction of the line of sight, and calculates the pixel 100 that is the center of the predetermined area 102 from the pixel 100 to the predetermined area. 102 may be set.
• the display device 1 sets the area including the pixels 100 corresponding to the direction in which the person's line of sight is facing as the predetermined area 102 .
• the fourth circuit 20 may acquire the position of a predetermined area based on the output of the sensor 30, and may selectively switch the switch 18 based on the position of the predetermined area 102.
• the fourth circuit 20 may estimate the predetermined area 102 based on the output from the sensor 30 .
• the display device 1 sets the predetermined area 102 by the signal output from the third circuit 16 based on the signal received from the sensor 30 .
• the third circuit 16 or the upstream driver of the third circuit 16 obtains the position of the pixel 100 belonging to the predetermined area 102 from the output of the sensor 30, and based on the position of the predetermined area, the pixel having a voltage equal to or higher than the predetermined voltage Vth.
• a signal for controlling the emission intensity of the signal and a signal having a voltage lower than a predetermined voltage Vth are appropriately distributed to the respective third signal lines 160 .
• the fifth circuit 22 can appropriately switch the switch 18 based on the voltage applied to the third signal line 160.
• This display device 1 may be used, for example, as a display device for XR such as VR and AR.
• respective display devices 1 may be provided for the left and right eyes and controlled in synchronization.
• One display device 1 having respective display areas for left and right eyes may be provided.
• the sensor 30 and the display device 1 may acquire information regarding one predetermined area from information about both the left and right eyes, or may acquire information regarding a predetermined area for each eye.
• the first circuit 12 also has a predetermined area, so processing for thinning out signals of a predetermined number of first signal lines 120 such as appropriate doubler processing is performed. executed.
• processing for thinning out signals of a predetermined number of first signal lines 120 such as appropriate doubler processing is performed. executed.
• information regarding a predetermined area from the sensor 30 described above is obtained, and based on this information, the first signal line 120 that belongs to the predetermined area and the first signal line 120 that does not belong to the predetermined area are determined. Then, signal thinning processing such as doubler processing is executed.
• the first circuit 12 appropriately shorts the first signal lines 120 to each other for the first signal lines 120 that do not belong to the predetermined area, and the second circuit 14 for the pixels 100 that belong to the predetermined number of lines.
• a format may be adopted in which signals of the same emission intensity are input from the third circuit 16 at the same timing, or other appropriate control may be executed.
• FIG. 16 is a diagram showing a non-limiting example of the pixel circuit of the pixel 100.
• the signal line Ws corresponds to the first signal line 120
• the signal line Sig corresponds to the second signal line 140 or the third signal line 160.
• the pixel 100 includes a light emitting element L, transistors Tws and Tdr, and a capacitor C1.
• the light-emitting element L emits light when, for example, a current flows from the anode to the cathode.
• the cathode is connected to a reference voltage Vcath (eg, ground voltage).
• Vcath eg, ground voltage.
• the anode of the light emitting element L is connected to the source of the transistor Tdr and one terminal of the capacitor C1.
• the transistor Tws is, for example, an n-type MOSFET (Metal-Oxide-Semiconductor Field-Effect Transistor), and is a write transistor that controls writing of pixel values.
• the transistor Tws has a data voltage (signal indicating the luminescence intensity of pixel 100) indicating the pixel value inputted to the drain from the signal line Sig, and the source is connected to the other end of the capacitor C1 and the gate of the transistor Tdr, and writes control to the gate.
• a control signal for is applied from the signal line Ws.
• the offset voltage in the above-described embodiment may be applied to the drain of the transistor Tws at an appropriate timing.
• This transistor Tws writes the data voltage supplied from the signal line Sig into the capacitor C1 according to the control signal from the signal line Ws.
• this transistor Tws is turned on, the data voltage supplied from the signal line Sig is charged (written) to the capacitor C1, and the light emission intensity of the light emitting element L is controlled by the amount of charge of this capacitor C1.
• the transistor Tdr is, for example, an n-type MOSFET, and is a drive transistor that controls the drive of the light emitting element L by flowing a current based on the potential written in the capacitor C1.
• the drain of the transistor Tdr is connected to the power supply voltage Vccp for driving the MOSFET, the gate is connected to the source of the transistor Tws, and the source is connected to the anode of the light emitting element L.
• a capacitor C1 is placed between the gate and source of this transistor Tdr.
• the pixel 100 writes to the sampled capacitor C1 based on the data voltage input from the signal line Sig, which thus determines the emission intensity for each pixel, and writes to the light emitting element L. By flowing a drain current that corresponds to the intensity of this written signal, it emits light with an appropriate intensity based on the data voltage input from the signal line Sig.
• the first circuit 12 and the second circuit 14 apply voltages to the signal line Ws (first signal line 120) and signal line Sig (second signal line 140 or third signal line 160).
• the fourth circuit 20 or the fifth circuit 22 and the switch 18 are appropriately arranged to perform the operations in each of the embodiments described above.
• FIG. 17 is a diagram showing another example of the pixel 100.
• the pixel 100 further includes transistors Tds and Taz, and a capacitor C2. Note that in the following figures, descriptions that overlap with the description of the pixel 100 according to another example already described may be omitted.
• the anode of the light emitting element L is connected to the source of the transistor Taz and the drain of the transistor Tdr.
• the capacitors C1 and C2 are capacitors for controlling the potential on the anode side of the light emitting element L.
• One end of the capacitor C2 is connected to the power supply voltage Vccp, and the other end is connected to one end of the capacitor C1 and the drain of the transistor Tds.
• the other end of the capacitor C1 is connected to the drain of the transistor Tws and the gate of the transistor Tdr.
• the transistor Tws is, for example, a p-type MOSFET, and is a transistor that controls writing of pixel values.
• a data voltage indicating the pixel value is inputted to the source from the signal line Sig, the drain is connected to the other end of the capacitor C1 and the gate of the transistor Tdr, and a signal for write control is applied to the gate from the signal line Ws. be done.
• this transistor Tws Based on the signal from the signal line Ws, this transistor Tws flows a drain current according to the voltage applied from the signal line Sig, and controls writing to the capacitor C1. By turning on the transistor Tws, a voltage based on the magnitude of the data voltage input from the signal line Sig is charged (written) to the capacitor C1, and the amount of charge in the capacitor C1 increases the luminous intensity of the light emitting element L. controlled.
• the transistor Tds is, for example, a p-type MOSFET, and is a transistor that controls the drive of the light emitting element L by flowing a current based on a potential corresponding to the written pixel value.
• the source of the transistor Tds is connected to the power supply voltage Vccp, the drain is connected to the source of the transistor Tdr, and a drive signal is input to the gate from the signal line Ds.
• the transistor Tds controls the drain potential of the transistor Tdr by flowing a drain current according to the drive signal applied from the signal line Ds.
• the transistor Tdr is, for example, a p-type MOSFET, and causes a current based on the data voltage written by the transistor Tws to flow to the light emitting element L by driving the transistor Tdr.
• the transistor Tdr has a source connected to the drain of the transistor Tds, a drain connected to the anode of the light emitting element L, and a gate connected to the drain of the transistor Tws.
• the data voltage stored by the capacitor C1 is applied to the gate of this transistor Tdr, when the source potential becomes a sufficiently large value, a drain current corresponding to the data voltage flows.
• the transistor Tdr causes this drain current to flow, the light emitting element L emits light with an intensity (brightness) corresponding to the data signal input from the signal line Sig.
• the transistor Taz is, for example, a p-type MOSFET, the source of which is connected to the anode of the light emitting element L, the drain connected to the power supply voltage Vss, and the reset voltage from the signal line Az applied to the gate.
• This transistor Taz is an initialization transistor (reset transistor) that initializes the potential of the anode of the light emitting element L according to the reset voltage applied from the signal line Az.
• the voltage Vss is, for example, a reference voltage in the power supply voltage, and may be a ground voltage.
• the transistor Taz resets the potential of the anode of the light emitting element L, thereby realizing a quick discharge operation and initializing the written state.
• FIG. 18 is a diagram showing another example of the pixel 100.
• the pixel 100 may include a light emitting element L, transistors Tws, Tds, Tdr, Taz, and a capacitor C1.
• the anode of the light emitting element L is connected to the drain of the transistor Taz, the source of the transistor Tdr, and one side of the capacitor C1.
• the transistor Taz is, for example, an N-type MOSFET, whose drain is connected to the anode of the light emitting element L, whose source is connected to the power supply voltage Vss, and whose gate is applied with a reset voltage from the signal line Az.
• This transistor Taz is an initialization transistor that initializes the potential of the anode of the light emitting element L according to the reset voltage applied from the signal line Az.
• the capacitor C1 is a capacitor for controlling the potential on the anode side of the light emitting element L.
• the transistor Tws is, for example, a p-type MOSFET, and is a transistor that controls writing of pixel values.
• a data voltage indicating the pixel value is inputted to the drain from the signal line Sig, the source is connected to the other end of the capacitor C1 and the gate of the transistor Tdr, and a signal for write control is applied to the gate from the signal line Ws. be done.
• This transistor Tws controls writing to the capacitor C1 by flowing a drain current according to the data voltage applied from the signal line Sig in response to the signal from the signal line Ws.
• this transistor Tws is turned on, the capacitor C1 is charged with a voltage according to the magnitude of the data voltage input from the signal line Sig, and the light emission intensity of the light emitting element L is controlled by the amount of charge of this capacitor C1. .
• the transistor Tds is, for example, an n-type MOSFET, and is a transistor that controls the drive of the light emitting element L by flowing a current based on a potential corresponding to the written pixel value.
• the drain of the transistor Tds is connected to the power supply voltage Vccp, the source is connected to the drain of the transistor Tdr, and the drive signal is applied to the gate from the signal line Ds.
• the transistor Tds controls the drain potential of the transistor Tdr by flowing a drain current according to the drive signal applied from the signal line Ds.
• the transistor Tdr is, for example, an n-type MOSFET, and allows a current based on the data signal written by the transistor Tws to flow to the light emitting element L through the flow of the transistor Tdr.
• the drain of the transistor Tdr is connected to the source of the transistor Tds, and the source is connected to the anode of the light emitting element L.
• the transistor Tdr Since the transistor Tdr has a potential applied to its gate that corresponds to the data voltage stored by the capacitor C1, when the drain potential takes a sufficiently large value, a drain current according to the data voltage flows. When the transistor Tdr causes this drain current to flow, the light emitting element L emits light with an intensity corresponding to the data signal input from the signal line Sig.
• the potential of the anode of the light emitting element L is reset by the transistor Taz, as in the above case.
• FIG. 19 is a diagram showing another example of the pixel 100.
• the pixel 100 may include two transistors Taz1 and Taz2 as initialization transistors. In this way, even when a plurality of initialization transistors are provided, similar control can be executed, and power consumption can be suppressed while appropriately achieving foveated rendering.
• FIG. 20 is a diagram showing another example of the pixel 100.
• a signal indicating the intensity may be transmitted to the pixel 100 through two signal lines Sig1 and Sig2.
• the second signal line 140 corresponding to the signal lines Sig1 and Sig2 is connected to the pixel 100
• the third signal line 160 corresponding to the signal lines Sig1 and Sig2 is connected to the pixel 100 may be connected.
• the data voltage applied to the signal line Sig1 is written to the capacitor C1 by the transistor Tws1, which is controlled by the signal applied to the signal line Ws1, and is further applied to the signal line Sig2 while the transistor Tws1 is being driven. It is possible to write a data voltage to capacitor C1.
• FIG. 21 is a diagram showing another example of the pixel 100.
• the pixel 100 may be connected to two types of signal lines Ws1 and Ws2 that control data voltage sampling.
• the drive of the transistor Tdr is controlled based also on the control signal of the line one line before.
• two systems of signals from the first circuit 12 may be input as control signals to the pixels 100 belonging to one line.
• FIG. 22 is a diagram showing another example of the pixel 100.
• Pixel 100 may be controlled by two transistors Twsn and Twsp that drive write transistors in a complementary manner.
• the write signal for driving the n-type MOSFET is applied to the gate of the transistor Twsn from the signal line Ws-n
• the write signal for driving the p-type MOSFET is applied to the gate of the transistor Twsp. Applied from line Ws-p. In this way, even when the signal lines Ws-n and Ws-p are provided as the first signal line 120, the same arrangement and control are possible.
• the pixel 100 may have other configurations.
• the polarities of the MOSFET are defined as n-type and p-type, but these polarities can be changed arbitrarily as long as the pixel 100 emits light with an intensity based on the data voltage. It is possible to choose.
• FIGS. 23A and 23B are diagrams showing the internal configuration of a vehicle 360 that is a first application example of an electronic device 3 equipped with a display device 1 according to the present disclosure.
• 23A is a diagram showing the interior of the vehicle 360 from the rear to the front of the vehicle 360
• FIG. 23B is a diagram showing the interior of the vehicle 360 from the diagonal rear to the diagonal front of the vehicle 360.
• the vehicle 360 of FIGS. 23A and 23B includes a center display 361, a console display 362, a head-up display 363, a digital rear mirror 364, a steering wheel display 365, and a rear entertainment display 366.
• the center display 361 is placed on the dashboard 367 at a location facing the driver's seat 368 and passenger seat 369.
• FIG. 23 shows an example of a horizontally long center display 361 extending from the driver's seat 368 side to the passenger seat 369 side
• the screen size and placement location of the center display 361 are arbitrary.
• Center display 361 can display information detected by various sensors. As a specific example, the center display 361 displays images taken by an image sensor, distance images to obstacles in front of the vehicle and to the sides measured by a ToF sensor, and passenger body temperature detected by an infrared sensor. Can be displayed.
• Center display 361 can be used, for example, to display at least one of safety-related information, operation-related information, life log, health-related information, authentication/identification-related information, and entertainment-related information.
• Safety-related information includes information such as detection of falling asleep, detection of looking away, detection of child tampering, presence or absence of seatbelts, and detection of leaving passengers behind. This information is detected by The operation-related information uses sensors to detect gestures related to operations by the occupant.
• the sensed gestures may include manipulation of various equipment within the vehicle 360. For example, the operation of air conditioning equipment, navigation equipment, AV equipment, lighting equipment, etc. is detected.
• the life log includes life logs of all crew members. For example, a life log includes a record of the actions of each occupant during the ride. By acquiring and saving life logs, it is possible to check the condition of the occupants at the time of the accident.
• a temperature sensor is used to detect the occupant's body temperature, and the occupant's health condition is estimated based on the detected body temperature.
• an image sensor may be used to capture an image of the occupant's face, and the occupant's health condition may be estimated from the captured facial expression.
• Authentication/identification related information includes a keyless entry function that performs facial recognition using a sensor, and a function that automatically adjusts seat height and position using facial recognition.
• the entertainment-related information includes a function that uses a sensor to detect operation information of an AV device by a passenger, a function that recognizes the passenger's face using a sensor, and provides the AV device with content suitable for the passenger.
• the console display 362 can be used, for example, to display life log information.
• Console display 362 is located near shift lever 371 on center console 370 between driver's seat 368 and passenger seat 369.
• the console display 362 can also display information detected by various sensors. Further, the console display 362 may display an image around the vehicle captured by an image sensor, or may display a distance image to an obstacle around the vehicle.
• the head-up display 363 is virtually displayed behind the windshield 372 in front of the driver's seat 368.
• Head-up display 363 can be used, for example, to display at least one of safety-related information, operation-related information, life log, health-related information, authentication/identification-related information, and entertainment-related information.
• the heads-up display 363 is often located virtually in front of the driver's seat 368, so it is used to display information directly related to the operation of the vehicle 360, such as the speed of the vehicle 360 and the amount of fuel (battery) remaining. Are suitable.
• the digital rear mirror 364 can display not only the rear of the vehicle 360 but also the state of the occupants in the rear seats, so by placing a sensor on the back side of the digital rear mirror 364, it can be used, for example, to display life log information. be able to.
• the steering wheel display 365 is placed near the center of the steering wheel 373 of the vehicle 360.
• Steering wheel display 365 can be used, for example, to display at least one of safety-related information, operation-related information, lifelog, health-related information, authentication/identification-related information, and entertainment-related information.
• life log information such as the driver's body temperature, and information regarding the operation of AV equipment, air conditioning equipment, etc. There is.
• the rear entertainment display 366 is attached to the back side of the driver's seat 368 and the passenger seat 369, and is for viewing by passengers in the rear seats.
• Rear entertainment display 366 can be used, for example, to display at least one of safety-related information, operation-related information, lifelog, health-related information, authentication/identification-related information, and entertainment-related information.
• information relevant to the rear seat occupant is displayed. For example, information regarding the operation of the AV device or air conditioning equipment may be displayed, or the results of measuring the body temperature of the passenger in the rear seat using a temperature sensor may be displayed.
• optical distance measurement methods There are two main types of optical distance measurement methods: passive and active.
• a passive type sensor measures distance by receiving light from an object without emitting light from the sensor to the object.
• Passive methods include the lens focusing method, stereo method, and monocular viewing method.
• the active type measures distance by projecting light onto an object and receiving the reflected light from the object with a sensor.
• Active types include an optical radar method, an active stereo method, a photometric stereo method, a moiré topography method, and an interferometry method.
• the electronic device 3 according to the present disclosure can be applied to any of these methods of distance measurement. By using the sensors stacked on the back side of the electronic device 3 according to the present disclosure, the above-mentioned passive or active distance measurement can be performed.
• the electronic device 3 including the display device 1 according to the present disclosure is applicable not only to various displays used in vehicles, but also to displays mounted on various electronic devices.
• FIG. 24A is a front view of a digital camera 310, which is a second application example of the electronic device 3, and FIG. 24B is a rear view of the digital camera 310.
• the digital camera 310 in FIGS. 24A and 24B is an example of a single-lens reflex camera in which the lens 121 can be replaced, but the digital camera 310 can also be applied to a camera in which the lens 121 cannot be replaced.
• FIGS. 24A and 24B In the camera shown in FIGS. 24A and 24B, when the photographer looks through the electronic viewfinder 315 while holding the grip 313 of the camera body 311, decides on the composition, adjusts the focus, and presses the shutter, the image inside the camera is The shooting data is saved in memory.
• a monitor screen 316 that displays shooting data, live images, etc., and an electronic viewfinder 315 are provided. Further, a sub-screen that displays setting information such as shutter speed and exposure value may be provided on the top surface of the camera.
• the electronic device 3 according to the present disclosure is also applicable to a head mounted display (hereinafter referred to as HMD).
• HMDs can be used for VR, AR, MR (Mixed Reality), SR (Substitutional Reality), and the like.
• FIG. 25A is an external view of HMD320, which is the third application example of electronic device 3.
• the HMD 320 in FIG. 25A has a mounting member 322 that is worn to cover a human's eyes. This mounting member 322 is fixed by being hooked onto, for example, a human ear.
• a display device 321 is provided inside the HMD 320, and the wearer of the HMD 320 can view stereoscopic images and the like on this display device 321.
• the HMD 320 is equipped with, for example, a wireless communication function and an acceleration sensor, and can switch the stereoscopic image displayed on the display device 321 according to the posture and gestures of the wearer.
• the HMD 320 may be provided with a camera to take images of the surroundings of the wearer, and the display device 321 may display an image obtained by combining the image taken by the camera and the image generated by the computer.
• a camera is placed on the back side of the display device 321 that is visible to the wearer of the HMD 320, and this camera takes pictures of the area around the eyes of the wearer, and the captured image is transferred to another camera provided on the outer surface of the HMD 320.
• a camera is placed on the back side of the display device 321 that is visible to the wearer of the HMD 320, and this camera takes pictures of the area around the eyes of the wearer, and the captured image is transferred to another camera provided on the outer surface of the HMD 320.
• HMD 320 various types are possible.
• the electronic device 3 according to the present disclosure can also be applied to smart glasses 340 that display various information on glasses 344.
• Smart glasses 340 in FIG. 25B include a main body portion 341, an arm portion 342, and a lens barrel portion 343.
• the main body portion 341 is connected to the arm portion 342.
• the main body portion 341 is removably attached to glasses 344.
• the main body section 341 includes a control board and a display section for controlling the operation of the smart glasses 340.
• the main body portion 341 and the lens barrel are connected to each other via an arm portion 342.
• the lens barrel section 343 emits the image light emitted from the main body section 341 via the arm section 342 to the lens 345 side of the glasses 344. This image light enters the human eye through lens 345.
• the wearer of the smart glasses 340 in FIG. 25B can visually recognize not only the surrounding situation but also various information emitted from the lens barrel section 343, just like normal glasses.
• the electronic device 3 according to the present disclosure is also applicable to a television device (hereinafter referred to as TV).
• TV television device
• Recent TVs tend to have frame sizes as small as possible from the viewpoint of miniaturization and aesthetic design. For this reason, when a TV is provided with a camera that photographs the viewer, it is desirable to arrange it so as to overlap the back side of the display panel 331 of the TV.
• FIG. 26 is an external view of TV 330, which is the fourth application example of electronic device 3.
• the TV 330 shown in FIG. 26 has a minimized frame, and almost the entire front side is the display area.
• the TV 330 has built-in sensors such as cameras to take pictures of viewers.
• the sensor in FIG. 26 is arranged on the back side of a part (for example, the broken line part) in the display panel 331.
• the sensor may be an image sensor module, or various sensors such as a face recognition sensor, a distance measurement sensor, a temperature sensor, etc. can be applied, and multiple types of sensors are installed on the back side of the display panel 331 of the TV 330. May be placed.
• the image sensor module can be placed overlappingly on the back side of the display panel 331, there is no need to arrange a camera or the like on the frame, and the TV 330 can be made smaller. Moreover, there is no fear that the frame will damage the design.
• FIG. 27 is an external view of a smartphone 350, which is a fifth application example of the electronic device 3.
• the display surface 350z extends to nearly the external size of the electronic device 3, and the width of the bezel 350y around the display surface 350z is several mm or less.
• a front camera is often mounted on the bezel 350y, but in FIG. 27, an image sensor module 351 that functions as a front camera is installed on the back side of the display surface 2z, for example, approximately in the center, as shown by the broken line. It is placed. In this way, by providing the front camera on the back side of the display surface 2z, there is no need to arrange the front camera on the bezel 350y, and the width of the bezel 350y can be reduced.
• a display device comprising:
• the first signal line is arranged line by line,
• the second signal line and the third signal line connected via the switch are arranged every two columns,
• the pixel includes a light emitting element that emits light of a plurality of colors
• the second signal line extends along the column direction for each of the plurality of colors for the same pixel
• the third signal line extends along the column direction for each of the plurality of colors for the same pixel, and can be connected to the second signal line connected to the light emitting element of the same color via a switch.
• the first circuit outputs a signal for driving the pixel; outputting a drive signal for each of the first signal lines to the first signal lines connected to the plurality of pixels belonging to a predetermined area; outputting a drive signal for each of a predetermined number of first signal lines to the first signal lines that are not connected to the pixels belonging to the predetermined area;
• the display device according to any one of (1) to (3).
• the first circuit outputs a drive signal for doubler drive in the first signal line that is not connected to the pixel belonging to the predetermined area.
• the third signal line connected to the pixel belonging to a predetermined area is electrically disconnected from the second signal line, the third signal line not connected to the pixel belonging to the predetermined area is electrically connected to the second signal line via the switch;
• the display device according to any one of (1) to (5).
• the third circuit does not output a signal for controlling the light emission intensity of the pixel to the third signal line that is not connected to the pixel belonging to the predetermined area.
• the fourth circuit switches the switch to electrically disconnecting the third signal line connected to the pixel belonging to the predetermined area from the second signal line; connecting the third signal line that is not connected to the pixel belonging to the predetermined area to the second circuit directly or via the second signal line; Display device described in (6) or (7).
• a fifth circuit connected to the third circuit and comparing the voltage output from the third circuit with a predetermined voltage; Furthermore, The third circuit is outputting a signal for controlling the light emission intensity of the pixel having a voltage equal to or higher than the predetermined voltage or a first offset voltage to the third signal line connected to the pixel belonging to the predetermined area; outputting a signal lower than the predetermined voltage or a second offset voltage to the third signal line not connected to the pixel belonging to the predetermined area; The fifth circuit selectively connects the third signal line to the second circuit by switching the switch based on the comparison result.
• the display device described in (6) The display device described in (6).
• the fifth circuit switches the switch to electrically disconnecting the second signal line and the third signal line when the voltage applied to the third signal line is equal to or higher than a predetermined voltage; electrically connecting the second circuit and the third signal line directly or via the second signal line when the voltage applied to the third signal line is less than a predetermined voltage;
• the switch switches the connection between either the second circuit or the third circuit and the third signal line;
• the display device according to any one of (1) to (5).
• the second circuit is connected to the second signal line and the corresponding third signal line through the same amplifier, The display device described in (11).
• the display device according to (8); a sensor that acquires the position of a person's line of sight on the display device; Equipped with The predetermined area is an area including the pixel corresponding to the direction in which the person's line of sight is facing,
• the fourth circuit obtains the position of the predetermined area from the output of the sensor, and selectively switches the switch based on the position of the predetermined area. Electronics.
• the display device according to (9) or (10); a sensor that acquires the position of a person's line of sight on the display device; Equipped with The predetermined area is an area including the pixel corresponding to the direction in which the person's line of sight is facing,
• the third circuit acquires the position of the predetermined area from the output of the sensor, and generates a signal for controlling the light emission intensity of the pixel having a voltage equal to or higher than the predetermined voltage based on the position of the predetermined area; outputting a signal having a voltage less than a predetermined voltage; Electronics.
• Display device 10: Pixel array, 100: pixels, 102: Predetermined area, 12: 1st circuit, 120: 1st signal line, 14: Second circuit, 140: 2nd signal line, 142: Amplifier, 16: Third circuit, 160: 3rd signal line, 162: Amplifier, 18: Switch, 20: 4th circuit, 22: 5th circuit, 3: Electronic equipment, 30: Sensor

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• 2023
  • 2023-01-26 JP JP2024507551A patent/JPWO2023176166A1/ja active Pending
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