WO2022099624A1 - 显示装置及其亮度补偿电路、亮度补偿方法 - Google Patents

显示装置及其亮度补偿电路、亮度补偿方法 Download PDF

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Publication number
WO2022099624A1
WO2022099624A1 PCT/CN2020/128734 CN2020128734W WO2022099624A1 WO 2022099624 A1 WO2022099624 A1 WO 2022099624A1 CN 2020128734 W CN2020128734 W CN 2020128734W WO 2022099624 A1 WO2022099624 A1 WO 2022099624A1
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Prior art keywords
pixel area
power supply
pixel
light
signal
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PCT/CN2020/128734
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English (en)
French (fr)
Inventor
冯雷
吴国强
廖成浩
姜燕妮
郑中基
Original Assignee
京东方科技集团股份有限公司
成都京东方光电科技有限公司
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Application filed by 京东方科技集团股份有限公司, 成都京东方光电科技有限公司 filed Critical 京东方科技集团股份有限公司
Priority to US17/430,234 priority Critical patent/US11688338B2/en
Priority to CN202080002772.2A priority patent/CN114830214A/zh
Priority to PCT/CN2020/128734 priority patent/WO2022099624A1/zh
Publication of WO2022099624A1 publication Critical patent/WO2022099624A1/zh

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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
    • G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
    • G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
    • G09G3/3225—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
    • G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
    • G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
    • G09G3/3225—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix
    • G09G3/3233—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix with pixel circuitry controlling the current through the light-emitting element
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/04—Structural and physical details of display devices
    • G09G2300/0439—Pixel structures
    • 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
    • G09G2300/0861—Several active elements per pixel in active matrix panels forming a memory circuit, e.g. a dynamic memory with one capacitor with additional control of the display period without amending the charge stored in a pixel memory, e.g. by means of additional select electrodes
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00—Command of the display device
    • G09G2310/08—Details of timing specific for flat panels, other than clock recovery
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0233—Improving the luminance or brightness uniformity across the screen
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/06—Adjustment of display parameters
    • G09G2320/0673—Adjustment of display parameters for control of gamma adjustment, e.g. selecting another gamma curve
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • 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
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2340/00—Aspects of display data processing
    • G09G2340/04—Changes in size, position or resolution of an image
    • G09G2340/0407—Resolution change, inclusive of the use of different resolutions for different screen areas

Definitions

  • the present disclosure relates to the field of display technology, and in particular, to a display device, a brightness compensation circuit thereof, and a brightness compensation method.
  • active matrix organic light-emitting diodes (English: Active-matrix organic light-emitting diodes, AMOLED for short) display panels have the advantages of self-illumination, bright colors, fast response speed and bendability. being widely used.
  • a "H+L" full-screen display scheme is proposed in the related art, that is, the screen is divided into a small part of the upper low-resolution display area (L area) and the lower part. Most of the high-resolution display area (H area), only some pixels in the low-resolution display area are displayed normally.
  • the camera module or infrared light sensor and other structures are placed under the L area, and the L area is translucent by using the ultra-thin characteristics of AMOLED. Display, so that the camera module or infrared light sensor can receive the light passing through the L area.
  • the above display solution avoids digging holes inside the display panel, and realizes a full-screen display in a true sense.
  • the purpose of the present disclosure is to provide a display device, a brightness compensation circuit and a brightness compensation method thereof.
  • a first aspect of the present disclosure provides a brightness compensation method for a display device, the display device includes: a display area and a peripheral area located around the display area, the display area includes a first pixel area and a second pixel area, The pixel density of the second pixel area is lower than the pixel density of the first pixel area; the brightness compensation method includes:
  • the first light-emitting luminance information of the first pixel area and the second light-emitting luminance information of the second pixel area respectively adjust the power supply signal of the first pixel area and/or the power supply of the second pixel area Signal.
  • the power supply signal includes the first power supply signal and/or the second power supply signal; the first power supply signal is used to generate a driving signal for driving a pixel to emit light, and the cathode of each pixel in the display device The second power signal is connected.
  • the step of respectively adjusting the power supply signal of the first pixel area and/or the power supply signal of the second pixel area specifically includes:
  • the light-emitting luminance of the first pixel area is higher than the light-emitting luminance of the second pixel area , reducing the voltage value of the first power supply signal in the first pixel region, and/or increasing the voltage value of the first power supply signal in the second pixel region;
  • the step of respectively adjusting the power supply signal of the first pixel region and/or the power supply signal of the second pixel region specifically includes:
  • the voltage value of the second power supply signal in the first pixel region is increased, and/or the voltage value of the second power supply signal in the second pixel region is decreased;
  • the step of respectively adjusting the power supply signal of the first pixel region and/or the power supply signal of the second pixel region specifically includes:
  • the integrated power supply circuit is controlled to adjust the power supply signal provided to the first pixel area and/or the second pixel area.
  • the display device also includes a first Gamma circuit and a second Gamma circuit; the brightness compensation method also includes:
  • the first Gamma circuit is controlled to generate a first Gamma voltage signal, and according to the first Gamma voltage signal , generating a first data signal transmitted to the first pixel area;
  • the second Gamma circuit is controlled to generate a second Gamma voltage signal, and according to the second Gamma voltage signal , generating a second data signal transmitted to the second pixel area.
  • the range of the first gamma voltage signal generated by the first gamma circuit is controlled to increase, and the first gamma voltage signal transmitted to the first pixel region is generated according to the increased range of the first gamma voltage signal.
  • a data signal or, control to reduce the range of the second Gamma voltage signal generated by the second Gamma circuit, and generate a second Gamma voltage signal transmitted to the second pixel area according to the reduced range of the second Gamma voltage signal data signal;
  • a second aspect of the present disclosure provides a brightness compensation circuit for a display device, the display device comprising: a display area and a peripheral area located around the display area, the display device The area includes a first pixel area and a second pixel area, and the pixel density of the second pixel area is lower than that of the first pixel area; the brightness compensation circuit includes a driver chip;
  • the driver chip is configured to acquire first light-emitting luminance information of the first pixel area and second light-emitting luminance information of the second pixel area;
  • the driver chip is further configured to: adjust the power supply signal and/or the power supply signal of the first pixel area respectively according to the first light emission luminance information of the first pixel area and the second light emission luminance information of the second pixel area the power signal of the second pixel area.
  • the power supply signal includes the first power supply signal and/or the second power supply signal; the first power supply signal is used to generate a driving signal for driving a pixel to emit light, and the cathode of each pixel in the display device The second power signal is connected.
  • the driver chip is specifically used for:
  • the light-emitting luminance of the first pixel area is higher than the light-emitting luminance of the second pixel area , reducing the voltage value of the first power supply signal in the first pixel region, and/or increasing the voltage value of the first power supply signal in the second pixel region;
  • the driver chip is specifically used for:
  • the voltage value of the second power supply signal in the first pixel region is increased, and/or the voltage value of the second power supply signal in the second pixel region is decreased;
  • the brightness compensation circuit further includes an integrated power supply circuit, and the integrated power supply circuit is used to supply power to the driving chip;
  • the driving chip is specifically configured to: control the integrated power supply circuit to adjust the power supply signal provided to the first pixel area and/or the second pixel area.
  • the brightness compensation circuit further includes an integrated power supply circuit, and the integrated power supply circuit is used to supply power to the driving chip;
  • the driving chip is specifically used for: controlling the integrated power supply circuit to adjust the power supply signal provided to the first pixel region;
  • the driving chip is also specifically used for: directly adjusting the power supply signal provided to the second pixel region.
  • the driving chip includes a control sub-circuit, a first Gamma circuit and a second Gamma circuit;
  • the control sub-circuit is configured to: control the first Gamma circuit to generate a first Gamma voltage signal according to the first light-emitting luminance information of the first pixel area and the second light-emitting luminance information of the second pixel area, generating a first data signal transmitted to the first pixel region according to the first gamma voltage signal;
  • the control sub-circuit is further configured to: control the second Gamma circuit to generate a second Gamma voltage signal according to the first light-emitting luminance information of the first pixel area and the second light-emitting luminance information of the second pixel area , generating a second data signal transmitted to the second pixel region according to the second Gamma voltage signal.
  • control sub-circuit is specifically used for:
  • a third aspect of the present disclosure provides a display device including the brightness compensation circuit described above.
  • a fourth aspect of the present disclosure provides a brightness compensation circuit for a display device, including: a processor and a memory, where the memory stores computer-executable instructions, the computer-executable instructions The instructions, when executed by the processor, perform the above-mentioned brightness compensation method of the display device.
  • a fifth aspect of the present disclosure provides a non-volatile storage medium storing computer-executable instructions, which, when executed by a processor, perform the above-mentioned steps.
  • a brightness compensation method for a display device is a fifth aspect of the present disclosure.
  • FIG. 1 is a first schematic diagram of a first pixel area and a second pixel area provided by an embodiment of the present disclosure
  • FIG. 2 is a second schematic diagram of a first pixel area and a second pixel area provided by an embodiment of the present disclosure
  • FIG. 3 is a third schematic diagram of a first pixel region and a second pixel region provided by an embodiment of the present disclosure
  • FIG. 4 is a fourth schematic diagram of a first pixel region and a second pixel region provided by an embodiment of the present disclosure
  • FIG. 5 is a fifth schematic diagram of a first pixel area and a second pixel area provided by an embodiment of the present disclosure
  • FIG. 6 is a schematic diagram of a first structure of a display device according to an embodiment of the present disclosure.
  • FIG. 7 is a schematic diagram of a second structure of a display device according to an embodiment of the present disclosure.
  • FIG. 8 is a schematic diagram of a third structure of a display device according to an embodiment of the present disclosure.
  • FIG. 9 is a schematic structural diagram of a pixel driving circuit provided by an embodiment of the present disclosure.
  • FIG. 10 is an operation timing diagram of a pixel driving circuit provided by an embodiment of the present disclosure.
  • an embodiment of the present disclosure provides a brightness compensation method for a display device, the display device includes: a display area and a peripheral area located around the display area, the display area includes a first The pixel area 10 and the second pixel area 20, the pixel density of the second pixel area 20 is lower than the pixel density of the first pixel area 10; the brightness compensation method includes:
  • the power supply signal of the first pixel area 10 and/or the second pixel are adjusted respectively zone 20 power signal.
  • the display device includes a display area and a peripheral area, the peripheral area surrounds the display area, the display area includes a first pixel area 10 and a second pixel area 20, and the second pixel area 20 is The pixel density is lower than the pixel density of the first pixel area 10 , and the second pixel area 20 is used to set structures such as a camera module or an infrared light sensor in the display device.
  • the shape of the second pixel region 20 is various.
  • the second pixel region 20 includes various shapes such as circle, ellipse, square, and special shape.
  • the second pixel area 20 may be used to display content such as time, power, and communication signals.
  • the first pixel area 10 is a normal full-pixel display area, which is used for displaying various application program interfaces and the like.
  • the specific structures of the pixel driving circuits in the first pixel area 10 and the second pixel area 20 are the same.
  • the pixel driving circuits include 7T1C, that is, 7 TFT and 1 capacitor.
  • the transistors included in the pixel driving circuit are all P-type transistors, the first electrode of each transistor includes a source electrode, and the second electrode of each transistor includes a drain electrode.
  • the first transistor T1 is a double gate structure, the gate 201g of the first transistor T1 is electrically connected to the gate line pattern 92, the source S1 of the first transistor T1 is electrically connected to the drain D3 of the third transistor T3 (ie, the driving transistor), The drain D1 of the first transistor T1 is electrically connected to the gate 203g of the third transistor T3.
  • the second transistor T2 has a double gate structure, the gate 202g of the second transistor T2 is electrically connected to the reset signal line pattern 95, the source S2 of the second transistor T2 is electrically connected to the initialization signal line pattern 94, and the second transistor T2 is electrically connected to the reset signal line pattern 95.
  • the drain D2 of T2 is electrically connected to the gate 203g of the third transistor T3.
  • the gate electrode 204g of the fourth transistor T4 (ie, the data writing transistor) is electrically connected to the gate line pattern 92, and the source electrode S4 of the fourth transistor T4 is electrically connected to the first data line pattern 981 or the second data line pattern 982, The drain D4 of the fourth transistor T4 is electrically connected to the source S3 of the third transistor T3.
  • the gate 205g of the fifth transistor T5 is electrically connected to the light-emitting control signal line pattern 93, the source S5 of the fifth transistor T5 is electrically connected to the power supply signal line pattern 91, and the drain D5 of the fifth transistor T5 is electrically connected to the source of the third transistor T3 Pole S3 electrical connection.
  • the gate 206g of the sixth transistor T6 is electrically connected to the light-emitting control signal line pattern 93, the source S6 of the sixth transistor T6 is electrically connected to the drain D3 of the third transistor T3, and the drain D6 of the sixth transistor T6 is electrically connected to the light-emitting element EL anode electrical connection.
  • the gate 207g of the seventh transistor T7 is electrically connected to the reset signal line pattern 95' in the next pixel adjacent to the display device along the second direction, and the drain D7 of the seventh transistor T7 is connected to the corresponding light-emitting element EL.
  • the anode is electrically connected, and the source S7 of the seventh transistor T7 is electrically connected to the initialization signal line pattern 94' in the next pixel adjacent along the second direction.
  • the first plate Cst1 of the storage capacitor Cst is multiplexed into the gate 203g of the third transistor T3 , and the second plate Cst2 of the storage capacitor Cst is electrically connected to the power signal line pattern 91 .
  • each working cycle includes a reset period P1, a writing compensation period P2 and a light-emitting period P3.
  • E1 represents the light-emitting control signal transmitted on the light-emitting control signal line pattern 93 in the current pixel
  • R1 represents the reset signal transmitted on the reset signal line pattern 95 in the current pixel
  • D1 represents the data line pattern in the current pixel.
  • the transmitted data signal, G1 represents the gate scan signal transmitted on the gate line pattern 92 in the current pixel
  • R1' represents the current pixel transmitted on the reset signal line pattern 95' in the next pixel adjacent to the second direction reset signal.
  • the reset signal input from the reset signal line pattern 95 is at an active level
  • the second transistor T2 is turned on
  • the initialization signal transmitted from the initialization signal line pattern 94 is input to the third transistor T3
  • the gate 203g of the third transistor T3 is reset, so that the gate-source voltage Vgs held on the third transistor T3 in the previous frame is cleared to reset the gate 203g of the third transistor T3.
  • the reset signal input from the reset signal line pattern 95 is at an inactive level
  • the second transistor T2 is turned off
  • the gate scan signal input from the gate line pattern 92 is at an active level
  • the first transistor T1 is controlled
  • the fourth transistor T4 is turned on
  • the corresponding data line pattern writes the data signal, and is transmitted to the source S3 of the third transistor T3 through the fourth transistor T4, and at the same time, the first transistor T1 and the fourth transistor T4 are turned on.
  • the third transistor T3 is formed into a diode structure. Therefore, the first transistor T1, the third transistor T3 and the fourth transistor T4 work together to realize the threshold voltage compensation of the third transistor T3.
  • the compensation time is long enough, it can be
  • the potential of the gate 203g of the control third transistor T3 finally reaches Vdata+Vth, where Vdata represents the voltage value of the data signal, and Vth represents the threshold voltage of the third transistor T3.
  • the reset signal input from the reset signal line pattern 95' is at an active level
  • the seventh transistor T7 is controlled to be turned on
  • the initialization signal transmitted from the initialization signal line pattern 94' is input to the anode of the light-emitting element EL , control the light-emitting element EL not to emit light.
  • the light-emitting control signal written in the light-emitting control signal line pattern 93 is at an active level, and the fifth transistor T5 and the sixth transistor T6 are controlled to be turned on, so that the power supply signal transmitted by the power supply signal line pattern 91 is input to the third
  • the source S3 of the transistor T3 and the gate 203g of the third transistor T3 are kept at Vdata+Vth, so that the third transistor T3 is turned on.
  • the gate-source voltage corresponding to the third transistor T3 is Vdata+Vth-ELVDD, and ELVDD is the power supply
  • the voltage value corresponding to the signal, the driving current generated based on the gate-source voltage flows to the anode of the corresponding light-emitting element EL, and drives the corresponding light-emitting element EL to emit light.
  • the driving current I D K(Vdata-ELVDD) 2 , which determines the light-emitting brightness of the light-emitting element EL. Therefore, it is possible to adjust the luminance of the light-emitting element EL by adjusting both Vdata and ELVDD.
  • the first light-emitting luminance information includes actual pixel currents of each pixel in the first pixel area 10
  • the second light-emitting luminance information includes actual pixel currents of each pixel in the second pixel area 20 .
  • the driving chip uses a certain sampling circuit to sample the actual pixel current IM of the first pixel region 10 and the second pixel region 20 .
  • the specific sampling method includes: dividing the first pixel area into a plurality of sampling areas, each sampling area including at least 2 ⁇ 2 pixel units, and collecting the light-emitting elements EL in each sampling area.
  • the actual pixel current, and the average current is calculated, the average current is used as the actual pixel current of the first pixel area 10, and the IM and ID corresponding to the first pixel area 10 are compared.
  • the driving chip can control and change the power signal transmitted to the first pixel area 10 and/or the second pixel area 20 .
  • the sampling frequency of the pixel current includes: 16 hours, 32 hours, 64 hours, 128 hours, 256 hours, 512 hours, 2 10 hours, 2 11 hours, and 2 12 hours.
  • the pixel current can be fed back to the driver chip at one of these frequencies.
  • the power supply signals received in the first pixel area 10 and the second pixel area 20 can be independently controlled, that is, when the power supply signal in the first pixel area 10 is adjusted, the second pixel area can be maintained The power supply signal in the region 20 remains unchanged; or when the power supply signal in the second pixel region 20 is adjusted, the power supply signal in the first pixel region 10 is kept unchanged.
  • the first light emission brightness information of the first pixel region 10 can be used, and
  • the second light-emitting brightness information of the second pixel area 20 is adjusted to the power supply signal of the first pixel area 10 and/or the power supply signal of the second pixel area 20, so as to control the first pixel area 10 and/or the power supply signal of the second pixel area 20.
  • the driving current of the pixels in the two-pixel area 20 changes, so that the display brightness of the first pixel area 10 and the display brightness of the second pixel area 20 are uniform, so as to realize the brightness compensation of the display device.
  • the power supply signal includes the first power supply signal and/or the second power supply signal; the first power supply signal is used to generate a drive for driving pixels to emit light signal, and the cathode of each pixel in the display device is connected to the second power supply signal.
  • the first power supply signal includes a positive power supply signal, such as the above-mentioned ELVDD, and the first power supply signal is used to generate a driving current for driving the pixel to emit light.
  • the second power supply signal includes a negative power supply signal, such as ELVSS, and the second power supply signal is used for writing to the cathode of each pixel in the display device.
  • ELVDD1 represents the first power supply signal written in the first pixel area 10
  • ELVDD2 represents the second power supply signal written in the second pixel area 10
  • ELVSS1 represents the writing The second power supply signal in the first pixel region 10
  • ELVSS2 represents the second power supply signal written in the second pixel region 20
  • ELVSS in FIG. 7 represents that the first pixel region 10 and the second pixel region 20 share the same second power supply signal.
  • CTRL represents that the driver chip sends control commands to the PMIC.
  • MIPI stands for the signal transmission interface between the driver chip and the client motherboard AP.
  • compensation in the following manner can be performed, but not limited to this.
  • the first way is to adjust only the first power signal of the first pixel region 10 .
  • the first power supply signal and the second power supply signal of the first pixel area 10 are adjusted at the same time, and the second pixel area 20 is not adjusted.
  • the first power supply signal and the second power supply signal of the second pixel region 20 are adjusted simultaneously, and the first pixel region 10 is not adjusted.
  • the first power supply signal of the first pixel region 10 and the first power supply signal of the second pixel region 20 are adjusted simultaneously, and the second power supply signal is not adjusted.
  • the second power supply signal of the first pixel region 10 and the second power supply signal of the second pixel region 20 are adjusted simultaneously, and the first power supply signal is not adjusted.
  • the first power supply signal of the first pixel region 10 , the first power supply signal of the second pixel region 20 , and the second power supply signal of the first pixel region 10 are adjusted simultaneously.
  • the first power supply signal of the first pixel region 10 , the first power supply signal of the second pixel region 20 , and the second power supply signal of the second pixel region 20 are adjusted simultaneously.
  • the second power supply signal of the first pixel region 10 , the second power supply signal of the second pixel region 20 , and the first power supply signal of the first pixel region 10 are adjusted simultaneously.
  • the second power supply signal of the first pixel region 10 , the second power supply signal of the second pixel region 20 , and the first power supply signal of the second pixel region 20 are adjusted simultaneously.
  • the first power supply signal of the first pixel region 10 and the second power supply signal of the second pixel region 20 are adjusted simultaneously.
  • the second power supply signal of the first pixel region 10 and the first power supply signal of the first pixel region 10 are adjusted simultaneously.
  • the first power supply signal and the second power supply signal of the first pixel region 10 and the first power supply signal and the second power supply signal of the second pixel region 20 are adjusted simultaneously.
  • first pixel area 10 and the second pixel area 20 can share the same the second power signal.
  • the first power supply signal and/or the second power supply signal in the first pixel area 10 and the second pixel area 20 can be adjusted according to actual needs, so as to better realize the display Brightness compensation for the device.
  • the step of adjusting the power signal of the first pixel area 10 and/or the power signal of the second pixel area 20 respectively include:
  • the first light emission luminance information of the first pixel area 10 and the second light emission luminance information of the second pixel area 20 it is determined that the light emission luminance of the first pixel area 10 is higher than that of the second pixel area
  • the voltage value of the first power supply signal of the first pixel area 10 is decreased, and/or the voltage value of the first power supply signal of the second pixel area 20 is increased;
  • the voltage value of the first power supply signal of the first pixel region 10 is increased, and/or the voltage value of the first power supply signal of the second pixel region 20 is decreased.
  • the luminance relationship between the first pixel area 10 and the second pixel area 20 is then adjusted to the voltage value of the first power supply signal of the first pixel area 10 and/or the second pixel area 20 .
  • the step of adjusting the power signal of the first pixel area 10 and/or the power signal of the second pixel area 20 respectively include:
  • the first light emission luminance information of the first pixel area 10 and the second light emission luminance information of the second pixel area 20 it is determined that the light emission luminance of the first pixel area 10 is higher than that of the second pixel area
  • the voltage value of the second power supply signal of the first pixel region 10 is increased, and/or the voltage value of the second power supply signal of the second pixel region 20 is decreased;
  • the voltage value of the second power supply signal of the first pixel region 10 is decreased, and/or the voltage value of the second power supply signal of the second pixel region 20 is increased.
  • the second power supply signal includes a negative power supply signal
  • the first light emission luminance information and the second light emission luminance information are determined, the luminance relationship between the first pixel area 10 and the second pixel area 20 is determined, and then the first pixel area 10 and/or the first pixel area 10 and/or the The voltage value of the second power signal in the two pixel regions 20 is adjusted.
  • the step of respectively adjusting the power supply signal of the first pixel area 10 and/or the power supply signal of the second pixel area 20 specifically includes:
  • a control integrated power circuit adjusts the power supply signal provided to the first pixel area 10 and/or the second pixel area 20 .
  • the integrated power circuit can supply power to a driver chip (Driver IC), and the driver chip can control the PMIC to output a power signal.
  • Driver IC Driver IC
  • the PMIC is arranged on the system motherboard.
  • the integrated power supply circuit can be controlled by the driver chip to provide power supply signals to the first pixel area 10 and/or the second pixel respectively, or a first power supply module and a second power supply module can be added inside the driver chip to drive the power supply.
  • the chip directly provides power signals to the first pixel region 10 through the first power module, and directly provides power signals to the second pixel region 20 through the second power module.
  • the driver chip controls and adjusts the PMIC to output an appropriate ELVDD voltage to the first light-emitting luminance information and the second light-emitting luminance information through the system main board (Main Set) control according to the feedback of the first light-emitting luminance information and the second light-emitting luminance information.
  • the pixel area 10 or the second pixel area 20 can improve the display non-uniformity of the display device caused by panel aging and current capability decline, better compensate the display brightness difference, and improve the service life of the display device.
  • the driver chip controls the integrated power supply circuit to provide ELVDD and ELVSS to the first pixel area 10, and the driver chip directly provides ELVDD and ELVSS to the second pixel area 20 by providing different ELVDD and/or or ELVSS, to change the voltage difference across the light-emitting element EL, thereby changing the light-emitting brightness of the light-emitting element EL.
  • the display device further includes a first Gamma circuit and a second Gamma circuit; the brightness compensation method further includes:
  • the first Gamma circuit is controlled to generate a first Gamma voltage signal. a voltage signal to generate a first data signal transmitted to the first pixel area 10;
  • the second Gamma circuit is controlled to generate a second Gamma voltage signal, according to the second Gamma
  • the voltage signal generates a second data signal transmitted to the second pixel region 20 .
  • a first Gamma circuit and a second Gamma circuit are arranged inside the driver chip, the first Gamma circuit corresponds to the first pixel area 10 , and the second Gamma circuit corresponds to the second pixel area 20 .
  • the first Gamma circuit is used for generating a first Gamma voltage signal, and based on the first Gamma voltage signal, a first data signal transmitted to the first pixel area 10 is generated, and the first data signal is transmitted to the first pixel area In the pixel drive circuit in 10, a drive current for driving the light-emitting element EL to emit light is generated.
  • the second Gamma circuit is used to generate a second Gamma voltage signal, and based on the second Gamma voltage signal to generate a second data signal transmitted to the second pixel area 20, the second data signal is transmitted to the second pixel area In the pixel drive circuit in 20, a drive current for driving the light-emitting element EL to emit light is generated.
  • an independent Gamma circuit is used to generate corresponding different pixel regions. Then, based on the Gamma voltage signal, data signals corresponding to different pixel areas are generated and written into the corresponding pixel areas, so that the first pixel area 10 and the second pixel area 20 can achieve display brightness and chromaticity uniformity.
  • the first pixel region 10 can be controlled simultaneously according to the first light emission brightness information of the first pixel region 10 and the second light emission brightness information of the second pixel region 20 . And/or the three parameters of the data signal, ELVDD, and ELVSS of the second pixel region 20 , so that the luminance and color coordinates of the first pixel region 10 are the same as the second pixel region 20 .
  • the range of the first Gamma voltage signal generated by the first Gamma circuit is controlled to increase, and according to the increased range of the first Gamma voltage signal, a signal to the first Gamma voltage signal is generated.
  • the range of the first gamma voltage signal generated by the first gamma circuit is controlled to be reduced, and according to the reduced range of the first gamma voltage signal, a signal transmitted to the first pixel area 10 is generated. the first data signal; or, control to increase the range of the second Gamma circuit to generate the second Gamma voltage signal, and generate a signal transmitted to the second pixel area 20 according to the second Gamma voltage signal after the increased range. the second data signal.
  • the display device has a total of 1024 grayscales, namely 0 to 1023 grayscales, Vgsp is the voltage corresponding to the 1023rd grayscale, Vgmp is the voltage corresponding to the 0th grayscale; Vgsp is the minimum corresponding to the display panel in the brightest state.
  • Grayscale voltage Vgmp is the maximum grayscale voltage corresponding to the darkest state of the display panel.
  • An embodiment of the present disclosure further provides a brightness compensation circuit for a display device, which is used to implement the brightness compensation method provided by the above embodiments.
  • the display device includes: a display area and a peripheral area located around the display area.
  • the area includes a first pixel area 10 and a second pixel area 20, the pixel density of the second pixel area 20 is lower than the pixel density of the first pixel area 10;
  • the brightness compensation circuit includes a driver chip;
  • the driver chip is used to obtain the first light emission luminance information of the first pixel area 10 and the second light emission luminance information of the second pixel area 20;
  • the driving chip is further configured to adjust the power supply signal of the first pixel area 10 according to the first light emission luminance information of the first pixel area 10 and the second light emission luminance information of the second pixel area 20 respectively and/or the power supply signal of the second pixel region 20 .
  • the driving chip is disposed in a peripheral area of the display device.
  • the driving chip can be based on the first pixel area 10
  • the luminous intensity information and the second luminous intensity information of the second pixel area 20 adjust the power supply signal of the first pixel area 10 and/or the power supply signal of the second pixel area 20 respectively, thereby controlling the first pixel area 10 and/or the driving current of the pixels in the second pixel area 20 changes, so that the display brightness of the first pixel area 10 and the display brightness of the second pixel area 20 are uniform, and the brightness compensation of the display device is realized.
  • the power supply signal includes the first power supply signal and/or the second power supply signal; the first power supply signal is used to generate a driving signal for driving pixels to emit light, and each pixel in the display device The cathode is connected to the second power supply signal.
  • the driver chip when the power supply signal includes the first power supply signal, the driver chip is specifically configured to:
  • the first light emission luminance information of the first pixel area 10 and the second light emission luminance information of the second pixel area 20 it is determined that the light emission luminance of the first pixel area 10 is higher than that of the second pixel area
  • the voltage value of the first power supply signal of the first pixel area 10 is decreased, and/or the voltage value of the first power supply signal of the second pixel area 20 is increased;
  • the voltage value of the first power supply signal of the first pixel region 10 is increased, and/or the voltage value of the first power supply signal of the second pixel region 20 is decreased.
  • the driver chip can obtain the first light-emitting brightness information and the second light-emitting brightness information according to the obtained information. , determine the brightness relationship between the first pixel area 10 and the second pixel area 20, and then adjust the voltage value of the first power supply signal in the first pixel area 10 and/or the second pixel area 20 .
  • the driver chip when the power supply signal includes the second power supply signal, the driver chip is specifically used for:
  • the first light emission luminance information of the first pixel area 10 and the second light emission luminance information of the second pixel area 20 it is determined that the light emission luminance of the first pixel area 10 is higher than that of the second pixel area
  • the voltage value of the second power supply signal of the first pixel region 10 is increased, and/or the voltage value of the second power supply signal of the second pixel region 20 is decreased;
  • the voltage value of the second power supply signal of the first pixel region 10 is decreased, and/or the voltage value of the second power supply signal of the second pixel region 20 is increased.
  • the driver chip can obtain The first light-emitting brightness information and the second light-emitting brightness information are determined, the brightness relationship between the first pixel area 10 and the second pixel area 20 is determined, and then the first pixel area 10 and/or the The voltage value of the second power supply signal of the second pixel region 20 is adjusted.
  • the brightness compensation circuit further includes an integrated power supply circuit, and the integrated power supply circuit is used to supply power to the driving chip;
  • the driving chip is specifically used for: controlling the integrated power supply circuit to adjust the power supply signal provided to the first pixel region 10 and/or the second pixel region 20 .
  • the brightness compensation circuit further includes an integrated power supply circuit, and the integrated power supply circuit is used to supply power to the driving chip;
  • the driving chip is specifically used for: controlling the integrated power supply circuit to adjust the power supply signal provided to the first pixel region 10;
  • the driving chip is also specifically configured to: directly adjust the power supply signal provided to the second pixel region 20 .
  • the integrated power circuit can supply power to a driver chip (Driver IC), and the driver chip can control the PMIC to output a power signal.
  • Driver IC Driver IC
  • the PMIC is arranged on the system motherboard.
  • the integrated power supply circuit can be controlled by the driver chip to provide power supply signals to the first pixel area 10 and/or the second pixel respectively, or a first power supply module and a second power supply module can be added inside the driver chip to drive the power supply.
  • the chip directly provides power signals to the first pixel region 10 through the first power module, and directly provides power signals to the second pixel region 20 through the second power module.
  • the driver chip controls and adjusts the PMIC to output an appropriate ELVDD voltage to the first light-emitting luminance information and the second light-emitting luminance information through the system main board (Main Set) control according to the feedback of the first light-emitting luminance information and the second light-emitting luminance information.
  • the pixel area 10 or the second pixel area 20 can improve the display non-uniformity of the display device caused by panel aging and current capability decline, better compensate the display brightness difference, and improve the service life of the display device.
  • the driver chip controls the integrated power supply circuit to provide ELVDD and ELVSS to the first pixel area 10, and the driver chip directly provides ELVDD and ELVSS to the second pixel area 20 by providing different ELVDD and/or or ELVSS, to change the voltage difference across the light-emitting element EL, thereby changing the light-emitting brightness of the light-emitting element EL.
  • the driver chip includes a control sub-circuit, a first Gamma circuit and a second Gamma circuit;
  • the control sub-circuit is used for: controlling the first Gamma circuit to generate a first Gamma voltage according to the first light-emitting luminance information of the first pixel area 10 and the second light-emitting luminance information of the second pixel area 20 signal, generating a first data signal transmitted to the first pixel area 10 according to the first Gamma voltage signal;
  • the control sub-circuit is further configured to: control the second Gamma circuit to generate a second Gamma according to the first light-emitting luminance information of the first pixel area 10 and the second light-emitting luminance information of the second pixel area 20
  • the voltage signal generates a second data signal transmitted to the second pixel region 20 according to the second Gamma voltage signal.
  • a control sub-circuit, a first Gamma circuit and a second Gamma circuit are arranged inside the driver chip.
  • the first Gamma circuit corresponds to the first pixel area 10 and the second Gamma circuit corresponds to the second pixel area 20 .
  • the control sub-circuit may, according to the first light emission brightness information of the first pixel area 10 and the second light emission brightness information of the second pixel area 20 Gamma voltage signals corresponding to different pixel areas are generated by independent Gamma circuits, and then based on the Gamma voltage signals, data signals corresponding to different pixel areas are generated and written into the corresponding pixel areas, so that the first pixel area 10 and all The second pixel region 20 can achieve uniform display brightness and chromaticity.
  • the driver chip can, according to the first light emission brightness information of the first pixel area 10 and the second light emission brightness information of the second pixel area 20, Simultaneously control the three parameters of the data signal, ELVDD and ELVSS of the first pixel area 10 and/or the second pixel area 20, so as to realize that the luminance and color coordinates of the first pixel area 10 are the same as those of the second pixel area 10.
  • the pixel regions 20 are the same.
  • control subcircuit is specifically used to:
  • the range of the first Gamma voltage signal generated by the first Gamma circuit is controlled to increase, and according to the increased range of the first Gamma voltage signal, a signal transmitted to the first pixel area 10 is generated. the first data signal; or, control to reduce the range of the second Gamma voltage signal generated by the second Gamma circuit, and generate a signal transmitted to the second pixel area 20 according to the second Gamma voltage signal after the reduced range.
  • a second data signal
  • the range of the first gamma voltage signal generated by the first gamma circuit is controlled to be reduced, and according to the reduced range of the first gamma voltage signal, a signal transmitted to the first pixel area 10 is generated. the first data signal; or, control to increase the range of the second Gamma circuit to generate the second Gamma voltage signal, and generate a signal transmitted to the second pixel area 20 according to the second Gamma voltage signal after the increased range. the second data signal.
  • Embodiments of the present disclosure further provide a display device, including the luminance compensation circuit provided by the above embodiments.
  • both the driver chip and the integrated power supply circuit in the brightness compensation circuit may be disposed in the peripheral area of the display device.
  • the display device may be any product or component with a display function, such as a TV, a monitor, a digital photo frame, a mobile phone, and a tablet computer.
  • An embodiment of the present disclosure further provides a brightness compensation circuit of a display device, including: a processor and a memory, where the memory stores computer-executable instructions, and the computer-executable instructions are executed by the processor to perform the above implementation
  • the example provides a brightness compensation method of a display device.
  • the display device includes: a display area and a peripheral area located around the display area, the display area includes a first pixel area and a second pixel area, and the pixel density of the second pixel area is lower than that of the first pixel
  • the pixel density of the area; the brightness compensation method includes:
  • the first light-emitting luminance information of the first pixel area and the second light-emitting luminance information of the second pixel area respectively adjust the power supply signal of the first pixel area and/or the power supply of the second pixel area Signal.
  • the power supply signal includes the first power supply signal and/or the second power supply signal; the first power supply signal is used to generate a driving signal for driving a pixel to emit light, and the cathode of each pixel in the display device The second power signal is connected.
  • the step of respectively adjusting the power supply signal of the first pixel area and/or the power supply signal of the second pixel area specifically includes:
  • the light-emitting luminance of the first pixel area is higher than the light-emitting luminance of the second pixel area , reducing the voltage value of the first power supply signal in the first pixel region, and/or increasing the voltage value of the first power supply signal in the second pixel region;
  • the step of respectively adjusting the power supply signal of the first pixel region and/or the power supply signal of the second pixel region specifically includes:
  • the voltage value of the second power supply signal in the first pixel region is increased, and/or the voltage value of the second power supply signal in the second pixel region is decreased;
  • the step of respectively adjusting the power supply signal of the first pixel region and/or the power supply signal of the second pixel region specifically includes:
  • the integrated power supply circuit is controlled to adjust the power supply signal provided to the first pixel area and/or the second pixel area.
  • the display device further includes a first Gamma circuit and a second Gamma circuit; the brightness compensation method further includes:
  • the first Gamma circuit is controlled to generate a first Gamma voltage signal, and according to the first Gamma voltage signal , generating a first data signal transmitted to the first pixel area;
  • the second Gamma circuit is controlled to generate a second Gamma voltage signal, and according to the second Gamma voltage signal , generating a second data signal transmitted to the second pixel area.
  • the range of the first gamma voltage signal generated by the first gamma circuit is controlled to increase, and the first gamma voltage signal transmitted to the first pixel region is generated according to the increased range of the first gamma voltage signal.
  • a data signal or, control to reduce the range of the second Gamma voltage signal generated by the second Gamma circuit, and generate a second Gamma voltage signal transmitted to the second pixel area according to the reduced range of the second Gamma voltage signal data signal;
  • the processor can be based on the first light emission brightness of the first pixel area. information, and the second light-emitting brightness information of the second pixel area, respectively adjust the power supply signal of the first pixel area and/or the power supply signal of the second pixel area, thereby controlling the first pixel area and/or the second pixel area.
  • the driving current of the pixels in the pixel area changes, so that the display brightness of the first pixel area and the display brightness of the second pixel area are uniform, so as to realize the brightness compensation of the display device.
  • the processor may choose to adjust the first power supply signal and/or the second power supply signal in the first pixel area and the second pixel area according to actual needs , so as to better realize the brightness compensation of the display device.
  • the processor according to the first light emitting brightness information of the first pixel region and the second light emitting brightness information of the second pixel region, through independent
  • the Gamma circuit generates Gamma voltage signals corresponding to different pixel areas, and then based on the Gamma voltage signals, generates data signals corresponding to different pixel areas, and writes them into the corresponding pixel areas, so that the first pixel area and the second pixel area are The pixel area can achieve uniform display brightness and chromaticity.
  • the processor can, according to the first light emission brightness information of the first pixel region and the second light emission brightness information of the second pixel region, simultaneously Three parameters of the data signal, ELVDD, and ELVSS of the first pixel area and/or the second pixel area are controlled, so that the luminance and color coordinates of the first pixel area are the same as the second pixel area.
  • the embodiments of the present disclosure further provide a non-volatile storage medium storing computer-executable instructions, and the computer-executable instructions, when executed by a processor, are used to perform the brightness compensation method embodiments of the display device provided by the above embodiments.
  • the computer-readable storage medium such as read-only memory (Read-Only Memory, referred to as ROM), random access memory (Random Access Memory, referred to as RAM), magnetic disk or optical disk and so on.

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Abstract

一种显示装置及其亮度补偿电路、亮度补偿方法。该显示装置的亮度补偿方法包括：获取第一像素区（10）的第一发光亮度信息，以及第二像素区（20）的第二发光亮度信息；根据第一像素区（10）的第一发光亮度信息，以及第二像素区（20）的第二发光亮度信息，分别调整第一像素区（10）的电源信号和/或第二像素区（20）的电源信号；该显示装置的显示区域包括第一像素区（10）和第二像素区（20），第二像素区（20）的像素密度低于第一像素区（10）的像素密度。

Description

显示装置及其亮度补偿电路、亮度补偿方法 技术领域
本公开涉及显示技术领域，尤其涉及一种显示装置及其亮度补偿电路、亮度补偿方法。
背景技术
与传统的液晶显示面板相比，有源矩阵有机发光二极管(英文：Active-matrix organic light-emitting diode，简称AMOLED)显示面板具有自发光、色彩艳丽、反应速度快以及可弯折等优点，因此被广泛使用。
为提高AMOLED显示面板屏占比，更大程度利用屏幕显示，相关技术中提出一种“H+L”全面屏显示方案，即将屏幕分为上面小部分低分辨率显示区(L区)与下面大部分高分辨率显示区(H区)，低分辨率显示区只有部分像素正常显示，将摄像头模组或红外光传感器等结构设置于L区的下方，利用AMOLED超薄特性实现L区半透明显示，使摄像头模组或红外光传感器能够接收透过L区的光线。上述显示方案避免了在显示面板内部挖孔，实现了一种真正意义上的全面屏显示。
发明内容
本公开的目的在于提供一种显示装置及其亮度补偿电路、亮度补偿方法。
本公开的第一方面提供一种显示装置的亮度补偿方法，所述显示装置包括：显示区域和位于所述显示区域周边的周边区域，所述显示区域包括第一像素区和第二像素区，所述第二像素区的像素密度低于所述第一像素区的像素密度；所述亮度补偿方法包括：
获取所述第一像素区的第一发光亮度信息，以及所述第二像素区的第二发光亮度信息；
根据所述第一像素区的第一发光亮度信息，以及所述第二像素区的第二发光亮度信息，分别调整所述第一像素区的电源信号和/或所述第二像素区的 电源信号。
可选的，所述电源信号包括所述第一电源信号和/或所述第二电源信号；所述第一电源信号用于生成驱动像素发光的驱动信号，所述显示装置中各像素的阴极接入所述第二电源信号。
可选的，当所述电源信号包括所述第一电源信号时，所述分别调整所述第一像素区的电源信号和/或所述第二像素区的电源信号的步骤具体包括：
当根据所述第一像素区的第一发光亮度信息，以及所述第二像素区的第二发光亮度信息，确定所述第一像素区的发光亮度高于所述第二像素区的发光亮度时，降低所述第一像素区的第一电源信号的电压值，和/或提高所述第二像素区的第一电源信号的电压值；
当根据所述第一像素区的第一发光亮度信息，以及所述第二像素区的第二发光亮度信息，确定所述第一像素区的发光亮度低于所述第二像素区的发光亮度时，提高所述第一像素区的第一电源信号的电压值，和/或降低所述第二像素区的第一电源信号的电压值。
可选的，当所述电源信号包括所述第二电源信号时，所述分别调整所述第一像素区的电源信号和/或所述第二像素区的电源信号的步骤具体包括：
当根据所述第一像素区的第一发光亮度信息，以及所述第二像素区的第二发光亮度信息，确定所述第一像素区的发光亮度高于所述第二像素区的发光亮度时，提高所述第一像素区的第二电源信号的电压值，和/或降低所述第二像素区的第二电源信号的电压值；
当根据所述第一像素区的第一发光亮度信息，以及所述第二像素区的第二发光亮度信息，确定所述第一像素区的发光亮度低于所述第二像素区的发光亮度时，降低所述第一像素区的第二电源信号的电压值，和/或提高所述第二像素区的第二电源信号的电压值。
可选的，所述分别调整所述第一像素区的电源信号和/或所述第二像素区的电源信号的步骤具体包括：
控制集成电源电路调整向所述第一像素区和/或所述第二像素区提供的电源信号。
可选的，所述显示装置还包括第一Gamma电路和第二Gamma电路；所 述亮度补偿方法还包括：
根据所述第一像素区的第一发光亮度信息，以及所述第二像素区的第二发光亮度信息，控制所述第一Gamma电路产生第一Gamma电压信号，根据所述第一Gamma电压信号，产生向所述第一像素区传输的第一数据信号；
根据所述第一像素区的第一发光亮度信息，以及所述第二像素区的第二发光亮度信息，控制所述第二Gamma电路产生第二Gamma电压信号，根据所述第二Gamma电压信号，产生向所述第二像素区传输的第二数据信号。
可选的，当根据所述第一像素区的第一发光亮度信息，以及所述第二像素区的第二发光亮度信息，确定所述第一像素区的发光亮度高于所述第二像素区的发光亮度时，控制增大所述第一Gamma电路产生的第一Gamma电压信号的范围，根据增大范围后的所述第一Gamma电压信号，产生向所述第一像素区传输的第一数据信号；或者，控制减小所述第二Gamma电路产生第二Gamma电压信号的范围，根据减小范围后的所述第二Gamma电压信号，产生向所述第二像素区传输的第二数据信号；
当根据所述第一像素区的第一发光亮度信息，以及所述第二像素区的第二发光亮度信息，确定所述第一像素区的发光亮度低于所述第二像素区的发光亮度时，控制减小所述第一Gamma电路产生的第一Gamma电压信号的范围，根据减小范围后的所述第一Gamma电压信号，产生向所述第一像素区传输的第一数据信号；或者，控制增大所述第二Gamma电路产生第二Gamma电压信号的范围，根据增大范围后的所述第二Gamma电压信号，产生向所述第二像素区传输的第二数据信号。
基于上述显示装置的亮度补偿方法的技术方案，本公开的第二方面提供一种显示装置的亮度补偿电路，所述显示装置包括：显示区域和位于所述显示区域周边的周边区域，所述显示区域包括第一像素区和第二像素区，所述第二像素区的像素密度低于所述第一像素区的像素密度；所述亮度补偿电路包括驱动芯片；
所述驱动芯片用于获取所述第一像素区的第一发光亮度信息，以及所述第二像素区的第二发光亮度信息；
所述驱动芯片还用于：根据所述第一像素区的第一发光亮度信息，以及 所述第二像素区的第二发光亮度信息，分别调整所述第一像素区的电源信号和/或所述第二像素区的电源信号。
可选的，所述电源信号包括所述第一电源信号和/或所述第二电源信号；所述第一电源信号用于生成驱动像素发光的驱动信号，所述显示装置中各像素的阴极接入所述第二电源信号。
可选的，当所述电源信号包括所述第一电源信号时，所述驱动芯片具体用于：
当根据所述第一像素区的第一发光亮度信息，以及所述第二像素区的第二发光亮度信息，确定所述第一像素区的发光亮度高于所述第二像素区的发光亮度时，降低所述第一像素区的第一电源信号的电压值，和/或提高所述第二像素区的第一电源信号的电压值；
当根据所述第一像素区的第一发光亮度信息，以及所述第二像素区的第二发光亮度信息，确定所述第一像素区的发光亮度低于所述第二像素区的发光亮度时，提高所述第一像素区的第一电源信号的电压值，和/或降低所述第二像素区的第一电源信号的电压值。
可选的，当所述电源信号包括所述第二电源信号时，所述驱动芯片具体用于：
当根据所述第一像素区的第一发光亮度信息，以及所述第二像素区的第二发光亮度信息，确定所述第一像素区的发光亮度高于所述第二像素区的发光亮度时，提高所述第一像素区的第二电源信号的电压值，和/或降低所述第二像素区的第二电源信号的电压值；
当根据所述第一像素区的第一发光亮度信息，以及所述第二像素区的第二发光亮度信息，确定所述第一像素区的发光亮度低于所述第二像素区的发光亮度时，降低所述第一像素区的第二电源信号的电压值，和/或提高所述第二像素区的第二电源信号的电压值。
可选的，所述亮度补偿电路还包括集成电源电路，所述集成电源电路用于为所述驱动芯片供电；
所述驱动芯片具体用于：控制所述集成电源电路调整向所述第一像素区和/或所述第二像素区提供的电源信号。
可选的，所述亮度补偿电路还包括集成电源电路，所述集成电源电路用于为所述驱动芯片供电；
所述驱动芯片具体用于：控制所述集成电源电路调整向所述第一像素区提供的电源信号；
所述驱动芯片还具体用于：直接调整向所述第二像素区提供的电源信号。
可选的，所述驱动芯片包括控制子电路、第一Gamma电路和第二Gamma电路；
所述控制子电路用于：根据所述第一像素区的第一发光亮度信息，以及所述第二像素区的第二发光亮度信息，控制所述第一Gamma电路产生第一Gamma电压信号，根据所述第一Gamma电压信号，产生向所述第一像素区传输的第一数据信号；
所述控制子电路还用于：根据所述第一像素区的第一发光亮度信息，以及所述第二像素区的第二发光亮度信息，控制所述第二Gamma电路产生第二Gamma电压信号，根据所述第二Gamma电压信号，产生向所述第二像素区传输的第二数据信号。
可选的，所述控制子电路具体用于：
当根据所述第一像素区的第一发光亮度信息，以及所述第二像素区的第二发光亮度信息，确定所述第一像素区的发光亮度高于所述第二像素区的发光亮度时，控制增大所述第一Gamma电路产生的第一Gamma电压信号的范围，根据增大范围后的所述第一Gamma电压信号，产生向所述第一像素区传输的第一数据信号；或者，控制减小所述第二Gamma电路产生第二Gamma电压信号的范围，根据减小范围后的所述第二Gamma电压信号，产生向所述第二像素区传输的第二数据信号；
当根据所述第一像素区的第一发光亮度信息，以及所述第二像素区的第二发光亮度信息，确定所述第一像素区的发光亮度低于所述第二像素区的发光亮度时，控制减小所述第一Gamma电路产生的第一Gamma电压信号的范围，根据减小范围后的所述第一Gamma电压信号，产生向所述第一像素区传输的第一数据信号；或者，控制增大所述第二Gamma电路产生第二Gamma电压信号的范围，根据增大范围后的所述第二Gamma电压信号，产生向所述 第二像素区传输的第二数据信号。
基于上述显示装置的亮度补偿电路的技术方案，本公开的第三方面提供一种显示装置，包括上述亮度补偿电路。
基于上述显示装置的亮度补偿方法的技术方案，本公开的第四方面提供一种显示装置的亮度补偿电路，包括：处理器和存储器，所述存储器存储有计算机可执行指令，所述计算机可执行指令由所述处理器执行时以进行上述显示装置的亮度补偿方法。
基于上述显示装置的亮度补偿方法的技术方案，本公开的第五方面提供、一种非易失性存储介质，存储有计算机可执行指令，所述计算机可执行指令由处理器执行时以进行上述显示装置的亮度补偿方法。
附图说明
此处所说明的附图用来提供对本公开的进一步理解，构成本公开的一部分，本公开的示意性实施例及其说明用于解释本公开，并不构成对本公开的不当限定。在附图中：
图1为本公开实施例提供的第一像素区和第二像素区的第一示意图；
图2为本公开实施例提供的第一像素区和第二像素区的第二示意图；
图3为本公开实施例提供的第一像素区和第二像素区的第三示意图；
图4为本公开实施例提供的第一像素区和第二像素区的第四示意图；
图5为本公开实施例提供的第一像素区和第二像素区的第五示意图；
图6为本公开实施例提供的显示装置的第一结构示意图；
图7为本公开实施例提供的显示装置的第二结构示意图；
图8为本公开实施例提供的显示装置的第三结构示意图；
图9为本公开实施例提供的像素驱动电路结构示意图；
图10为本公开实施例提供的像素驱动电路工作时序图。
具体实施方式
为了进一步说明本公开实施例提供的显示装置及其亮度补偿电路、亮度 补偿方法，下面结合说明书附图进行详细描述。
H+L全面屏显示方案中，由于L区与H区像素点亮情况不同，在长时间点屏过程中，出现H区老化情况重于L区，老化引起电流能力下降，使得原本经过Gamma调节后显示并无差异的两部分区域出现亮度不均一情况。因此，亟需提出一种改善老化并提升亮度均一性的补偿方案。
如图1～图5所示，本公开实施例提供了一种显示装置的亮度补偿方法，所述显示装置包括：显示区域和位于所述显示区域周边的周边区域，所述显示区域包括第一像素区10和第二像素区20，所述第二像素区20的像素密度低于所述第一像素区10的像素密度；所述亮度补偿方法包括：
如图6～图7所示，获取所述第一像素区10的第一发光亮度信息，以及所述第二像素区20的第二发光亮度信息；
根据所述第一像素区10的第一发光亮度信息，以及所述第二像素区20的第二发光亮度信息，分别调整所述第一像素区10的电源信号和/或所述第二像素区20的电源信号。
示例性的，所述显示装置包括显示区域和周边区域，所述周边区域环绕所述显示区域，所述显示区域包括第一像素区10和第二像素区20，所述第二像素区20的像素密度低于所述第一像素区10的像素密度，所述第二像素区20用于设置所述显示装置中的摄像头模组或红外光传感器等结构。
所述第二像素区20的形态多种多样，示例性的，所述第二像素区20包括圆形、椭圆形、方形和异形等多种形状。在非摄像头应用场景下，所述第二像素区20可以用于显示时间、电量、通信信号等内容。所述第一像素区10为正常全像素显示区，用于各种应用程序界面显示等。
如图9和图10所示，所述第一像素区10和所述第二像素区20中的像素驱动电路的具体结构相同，示例性的，所述像素驱动电路均包括7T1C，即7个薄膜晶体管和1个电容。该像素驱动电路包括的各晶体管均采用P型晶体管，每个晶体管的第一极包括源极，每个晶体管的第二极包括漏极。
第一晶体管T1为双栅结构，第一晶体管T1的栅极201g与栅线图形92电连，第一晶体管T1的源极S1与第三晶体管T3(即驱动晶体管)的漏极D3电连，第一晶体管T1的漏极D1与第三晶体管T3的栅极203g电连。
第二晶体管T2为双栅结构，第二晶体管T2的栅极202g与所述复位信号线图形95电连，第二晶体管T2的源极S2与所述初始化信号线图形94电连，第二晶体管T2的漏极D2与第三晶体管T3的栅极203g电连。
第四晶体管T4(即数据写入晶体管)的栅极204g与所述栅线图形92电连，第四晶体管T4的源极S4与第一数据线图形981或第二数据线图形982电连，第四晶体管T4的漏极D4与第三晶体管T3的源极S3电连。
第五晶体管T5的栅极205g与发光控制信号线图形93电连，第五晶体管T5的源极S5与电源信号线图形91电连，第五晶体管T5的漏极D5与第三晶体管T3的源极S3电连。
第六晶体管T6的栅极206g与发光控制信号线图形93电连，第六晶体管T6的源极S6与第三晶体管T3的漏极D3电连，第六晶体管T6的漏极D6与发光元件EL的阳极电连。
第七晶体管T7的栅极207g与显示装置中沿所述第二方向相邻的下一个像素中的复位信号线图形95'电连，第七晶体管T7的漏极D7与对应的发光元件EL的阳极电连，第七晶体管T7的源极S7与沿所述第二方向相邻的下一个像素中的所述初始化信号线图形94'电连。
存储电容Cst的第一极板Cst1复用为第三晶体管T3的栅极203g，存储电容Cst的第二极板Cst2与所述电源信号线图形91电连。
上述结构的像素驱动电路在工作时，每个工作周期均包括复位时段P1、写入补偿时段P2和发光时段P3。图3中，E1代表当前像素中的发光控制信号线图形93上传输的发光控制信号，R1代表当前像素中的复位信号线图形95上传输的复位信号，D1代表当前像素中的数据线图形上传输的数据信号，G1代表当前像素中的栅线图形92上传输的栅极扫描信号，R1'代表当前像素沿所述第二方向相邻的下一个像素中的复位信号线图形95'上传输的复位信号。
在所述第一复位时段P1，所述复位信号线图形95输入的复位信号处于有效电平，第二晶体管T2导通，将由所述初始化信号线图形94传输的初始化信号输入至第三晶体管T3的栅极203g，使得前一帧保持在第三晶体管T3上的栅源电压Vgs被清零，实现对第三晶体管T3的栅极203g复位。
在写入补偿时段P2，所述复位信号线图形95输入的复位信号处于非有效电平，第二晶体管T2截止，栅线图形92输入的栅极扫描信号处于有效电平，控制第一晶体管T1和第四晶体管T4导通，相应的数据线图形写入数据信号，并经所述第四晶体管T4传输至第三晶体管T3的源极S3，同时，第一晶体管T1和第四晶体管T4导通，使得第三晶体管T3形成为二极管结构，因此通过第一晶体管T1、第三晶体管T3和第四晶体管T4配合工作，实现对第三晶体管T3的阈值电压补偿，当补偿的时间足够长时，可控制第三晶体管T3的栅极203g电位最终达到Vdata+Vth，Vdata代表数据信号电压值，Vth代表第三晶体管T3的阈值电压。
在写入补偿时段P2，复位信号线图形95'输入的复位信号处于有效电平，控制第七晶体管T7导通，由所述初始化信号线图形94'传输的初始化信号输入至发光元件EL的阳极，控制发光元件EL不发光。
在发光时段P3，发光控制信号线图形93写入的发光控制信号处于有效电平，控制第五晶体管T5和第六晶体管T6导通，使得由电源信号线图形91传输的电源信号输入至第三晶体管T3的源极S3，同时由于第三晶体管T3的栅极203g保持在Vdata+Vth，使得第三晶体管T3导通，第三晶体管T3对应的栅源电压为Vdata+Vth-ELVDD，ELVDD为电源信号对应的电压值，基于该栅源电压产生的驱动电流流向对应的发光元件EL的阳极，驱动对应的发光元件EL发光。
所述驱动电流I D＝K(Vdata-ELVDD) 2，该驱动电流决定了发光元件EL的发光亮度。因此通过调节Vdata和ELVDD均能够实现对发光元件EL的发光亮度的调节。
示例性的，所述第一发光亮度信息包括所述第一像素区10中各像素的实际像素电流，所述第二发光亮度信息包括所述第二像素区20中各像素的实际像素电流。
驱动芯片以一定采样电路去采样第一像素区10和第二像素区20的实际像素电流I M。以第一像素区10为例，具体采样方式包括：将所述第一像素区划分为多个采样区域，每个采样区域至少包括2×2个像素单元，采集各采样区域中发光元件EL的实际像素电流，并计算得到平均电流，将该平均电流 作为所述第一像素区10的实际像素电流，比较第一像素区10对应的I M与I D，若I M越来越小，即I M与I D之间的偏差值越来越大，说明第一像素区10老化越来越严重，第一像素区10的像素驱动能力变差，导致第一像素区10和第二像素区20的亮度出现不均一。当驱动芯片获取到反馈的实际像素电流后，经过与I D比较，驱动芯片可控制改变传输至第一像素区10和/或第二像素区20的电源信号。
需要说明，所述像素电流的采样频率包括：16小时、32小时、64小时、128小时、256小时、512小时、2 10小时、2 11小时和2 12小时等。示例性的，可以以这些频率中的一种反馈像素电流给驱动芯片。
需要说明，所述第一像素区10和所述第二像素区20中接收的电源信号能够独立控制，即可以在调节所述第一像素区10中的电源信号时，保持所述第二像素区20中的电源信号不变；或者在调节所述第二像素区20中的电源信号时，保持所述第一像素区10中的电源信号不变。
本公开实施例提供的显示装置的亮度补偿方法中，在出现第一像素区10和第二像素区20显示亮度不均一时，能够基于所述第一像素区10的第一发光亮度信息，以及所述第二像素区20的第二发光亮度信息，对第一像素区10的电源信号和/或所述第二像素区20的电源信号分别调整，从而控制第一像素区10和/或第二像素区20中的像素的驱动电流发生变化，使所述第一像素区10的显示亮度和所述第二像素区20的显示亮度均一，实现对显示装置的亮度补偿。
如图6～图8所示，在一些实施例中，所述电源信号包括所述第一电源信号和/或所述第二电源信号；所述第一电源信号用于生成驱动像素发光的驱动信号，所述显示装置中各像素的阴极接入所述第二电源信号。
示例性的，所述第一电源信号包括正电源信号，如上述ELVDD，所述第一电源信号用于生成驱动像素发光的驱动电流。所述第二电源信号包括负电源信号，如ELVSS，该第二电源信号用于写入所述显示装置中各像素的阴极。
需要说明，图6～图8中，ELVDD1代表写入所述第一像素区10中的第一电源信号，ELVDD2代表写入所述第二像素区10中的第二电源信号；ELVSS1代表写入所述第一像素区10中的第二电源信号，ELVSS2代表写入 所述第二像素区20中的第二电源信号。图7中的ELVSS代表所述第一像素区10和所述第二像素区20共用相同的第二电源信号。CTRL代表驱动芯片向PMIC发送控制指令。MIPI代表驱动芯片与客户主板AP之间的信号传输接口。
在所述亮度补偿方法中，可以进行如下方式的补偿，但不仅限于此。
方式一，仅调整所述第一像素区10的第一电源信号。
方式二，仅调整所述第一像素区10的第二电源信号。
方式三，同时调整所述第一像素区10的第一电源信号和第二电源信号，对所述第二像素区20不调整。
方式四，仅调整所述第二像素区20的第一电源信号。
方式五，仅调整所述第二像素区20的第二电源信号。
方式六，同时调整所述第二像素区20的第一电源信号和第二电源信号，对所述第一像素区10不调整。
方式七，同时调整所述第一像素区10的第一电源信号和所述第二像素区20的第一电源信号，所述第二电源信号不调整。
方式八，同时调整所述第一像素区10的第二电源信号和所述第二像素区20的第二电源信号，所述第一电源信号不调整。
方式九，同时调整所述第一像素区10的第一电源信号，所述第二像素区20的第一电源信号，以及所述第一像素区10的第二电源信号。
方式十，同时调整所述第一像素区10的第一电源信号，所述第二像素区20的第一电源信号，以及所述第二像素区20的第二电源信号。
方式十一，同时调整所述第一像素区10的第二电源信号，所述第二像素区20的第二电源信号，以及所述第一像素区10的第一电源信号。
方式十二，同时调整所述第一像素区10的第二电源信号，所述第二像素区20的第二电源信号，以及所述第二像素区20的第一电源信号。
方式十三，同时调整所述第一像素区10的第一电源信号和所述第二像素区20的第二电源信号。
方式十四，同时调整所述第一像素区10的第二电源信号和所述第一像素区10的第一电源信号。
方式十五，同时调整所述第一像素区10的第一电源信号和第二电源信号，以及所述第二像素区20的第一电源信号和第二电源信号。
需要说明，在不调整所述第一像素区10和所述第二像素区20的第二电源信号的情况下，可以将所述第一像素区10和所述第二像素区20共用相同的所述第二电源信号。
上述实施例提供的亮度补偿方法中，可以根据实际需要选择对第一像素区10、第二像素区20中的第一电源信号和/或第二电源信号进行调节，从而更好的实现对显示装置的亮度补偿。
在一些实施例中，当所述电源信号包括所述第一电源信号时，所述分别调整所述第一像素区10的电源信号和/或所述第二像素区20的电源信号的步骤具体包括：
当根据所述第一像素区10的第一发光亮度信息，以及所述第二像素区20的第二发光亮度信息，确定所述第一像素区10的发光亮度高于所述第二像素区20的发光亮度时，降低所述第一像素区10的第一电源信号的电压值，和/或提高所述第二像素区20的第一电源信号的电压值；
当根据所述第一像素区10的第一发光亮度信息，以及所述第二像素区20的第二发光亮度信息，确定所述第一像素区10的发光亮度低于所述第二像素区20的发光亮度时，提高所述第一像素区10的第一电源信号的电压值，和/或降低所述第二像素区20的第一电源信号的电压值。
具体地，写入到像素中的所述第一电源信号的电压值越大，该像素的亮度越亮，因此可以根据获取的所述第一发光亮度信息和所述第二发光亮度信息，确定所述第一像素区10和所述第二像素区20的亮度关系，然后对所述第一像素区10和/或所述第二像素区20的第一电源信号的电压值进行调整。
在一些实施例中，当所述电源信号包括所述第二电源信号时，所述分别调整所述第一像素区10的电源信号和/或所述第二像素区20的电源信号的步骤具体包括：
当根据所述第一像素区10的第一发光亮度信息，以及所述第二像素区20的第二发光亮度信息，确定所述第一像素区10的发光亮度高于所述第二像素区20的发光亮度时，提高所述第一像素区10的第二电源信号的电压值， 和/或降低所述第二像素区20的第二电源信号的电压值；
当根据所述第一像素区10的第一发光亮度信息，以及所述第二像素区20的第二发光亮度信息，确定所述第一像素区10的发光亮度低于所述第二像素区20的发光亮度时，降低所述第一像素区10的第二电源信号的电压值，和/或提高所述第二像素区20的第二电源信号的电压值。
具体地，当所述第二电源信号包括负电源信号时，写入到像素中的所述第二电源信号的电压值的绝对值越大，该像素的亮度越亮，因此可以根据获取的所述第一发光亮度信息和所述第二发光亮度信息，确定所述第一像素区10和所述第二像素区20的亮度关系，然后对所述第一像素区10和/或所述第二像素区20的第二电源信号的电压值进行调整。
如图5和图6所示，在一些实施例中，所述分别调整所述第一像素区10的电源信号和/或所述第二像素区20的电源信号的步骤具体包括：
控制集成电源电路(PMIC)调整向所述第一像素区10和/或所述第二像素区20提供的电源信号。
具体地，所述集成电源电路能够为驱动芯片(Driver IC)供电，所述驱动芯片能够控制PMIC输出电源信号。所述PMIC设置于系统主板上。
可以通过驱动芯片控制所述集成电源电路分别向所述第一像素区10和/或所述第二像素提供电源信号，也可以通过在驱动芯片内部增加第一电源模块和第二电源模块，驱动芯片通过第一电源模块直接向所述第一像素区10提供电源信号，并通过第二电源模块直接向所述第二像素区20提供电源信号。
示例性的，当出现由于老化OLED电流下降时，驱动芯片根据反馈的第一发光亮度信息和第二发光亮度信息，通过系统主板(Main Set)控制调节PMIC输出合适的ELVDD电压给所述第一像素区10或所述第二像素区20，以改善面板老化和电流能力下降引起的显示装置显示不均一情况，更好的补偿显示亮度差异，提升显示装置的使用寿命。
示例性的，所述驱动芯片控制所述集成电源电路向所述第一像素区10提供ELVDD和ELVSS，驱动芯片直接向所述第二像素区20提供ELVDD和ELVSS，通过提供不同的ELVDD和/或ELVSS，来改变发光元件EL两端的压差，从而改变发光元件EL的发光亮度。
如图8所示，在一些实施例中，所述显示装置还包括第一Gamma电路和第二Gamma电路；所述亮度补偿方法还包括：
根据所述第一像素区10的第一发光亮度信息，以及所述第二像素区20的第二发光亮度信息，控制所述第一Gamma电路产生第一Gamma电压信号，根据所述第一Gamma电压信号，产生向所述第一像素区10传输的第一数据信号；
根据所述第一像素区10的第一发光亮度信息，以及所述第二像素区20的第二发光亮度信息，控制所述第二Gamma电路产生第二Gamma电压信号，根据所述第二Gamma电压信号，产生向所述第二像素区20传输的第二数据信号。
具体地，在驱动芯片内部设置第一Gamma电路和第二Gamma电路，第一Gamma电路与所述第一像素区10对应，第二Gamma电路与所述第二像素区20对应。
所述第一Gamma电路用于产生第一Gamma电压信号，基于该第一Gamma电压信号产生向所述第一像素区10传输的第一数据信号，所述第一数据信号传输至第一像素区10中的像素驱动电路中，产生用于驱动发光元件EL发光的驱动电流。所述第二Gamma电路用于产生第二Gamma电压信号，基于该第二Gamma电压信号产生向所述第二像素区20传输的第二数据信号，所述第二数据信号传输至第二像素区20中的像素驱动电路中，产生用于驱动发光元件EL发光的驱动电流。
上述实施例提供的亮度补偿方法中，根据所述第一像素区10的第一发光亮度信息，以及所述第二像素区20的第二发光亮度信息，通过独立的Gamma电路产生对应不同像素区的Gamma电压信号，然后基于该Gamma电压信号，产生对应不同像素区的数据信号，并写入对应的像素区中，使得所述第一像素区10和所述第二像素区20能够实现显示亮度和色度均一。
上述实施例提供的亮度补偿方法中，能够根据所述第一像素区10的第一发光亮度信息，以及所述第二像素区20的第二发光亮度信息，同时控制所述第一像素区10和/或所述第二像素区20的数据信号、ELVDD、ELVSS三个参数，以实现所述第一像素区10的亮度和色坐标均与所述第二像素区20相 同。
在一些实施例中，当根据所述第一像素区10的第一发光亮度信息，以及所述第二像素区20的第二发光亮度信息，确定所述第一像素区10的发光亮度高于所述第二像素区20的发光亮度时，控制增大所述第一Gamma电路产生的第一Gamma电压信号的范围，根据增大范围后的所述第一Gamma电压信号，产生向所述第一像素区10传输的第一数据信号；或者，控制减小所述第二Gamma电路产生第二Gamma电压信号的范围，根据减小范围后的所述第二Gamma电压信号，产生向所述第二像素区20传输的第二数据信号；
当根据所述第一像素区10的第一发光亮度信息，以及所述第二像素区20的第二发光亮度信息，确定所述第一像素区10的发光亮度低于所述第二像素区20的发光亮度时，控制减小所述第一Gamma电路产生的第一Gamma电压信号的范围，根据减小范围后的所述第一Gamma电压信号，产生向所述第一像素区10传输的第一数据信号；或者，控制增大所述第二Gamma电路产生第二Gamma电压信号的范围，根据增大范围后的所述第二Gamma电压信号，产生向所述第二像素区20传输的第二数据信号。
示例性的，显示装置共有1024个灰阶，即0～1023灰阶，Vgsp为第1023灰阶对应的电压，Vgmp为第0灰阶对应的电压；Vgsp为显示面板在最亮态对应的最小灰阶电压，Vgmp为显示面板在最暗态对应的最大灰阶电压。在增大或减小Gamma电压信号的范围时，可以固定vgmp调节vgsp，或者固定vgsp调节vgmp，Gamma电压信号的电压范围越大，数据信号越大，像素显示亮度越暗。
本公开实施例还提供了一种显示装置的亮度补偿电路，用于实施上述实施例提供的亮度补偿方法，所述显示装置包括：显示区域和位于所述显示区域周边的周边区域，所述显示区域包括第一像素区10和第二像素区20，所述第二像素区20的像素密度低于所述第一像素区10的像素密度；所述亮度补偿电路包括驱动芯片；
所述驱动芯片用于获取所述第一像素区10的第一发光亮度信息，以及所述第二像素区20的第二发光亮度信息；
所述驱动芯片还用于：根据所述第一像素区10的第一发光亮度信息，以 及所述第二像素区20的第二发光亮度信息，分别调整所述第一像素区10的电源信号和/或所述第二像素区20的电源信号。
示例性的，所述驱动芯片设置于所述显示装置的周边区域。
采用本公开实施例提供的亮度补偿电路实施上述亮度补偿方法时，在出现第一像素区10和第二像素区20显示亮度不均一时，驱动芯片能够基于所述第一像素区10的第一发光亮度信息，以及所述第二像素区20的第二发光亮度信息，对第一像素区10的电源信号和/或所述第二像素区20的电源信号分别调整，从而控制第一像素区10和/或第二像素区20中的像素的驱动电流发生变化，使所述第一像素区10的显示亮度和所述第二像素区20的显示亮度均一，实现对显示装置的亮度补偿。
在一些实施例中，所述电源信号包括所述第一电源信号和/或所述第二电源信号；所述第一电源信号用于生成驱动像素发光的驱动信号，所述显示装置中各像素的阴极接入所述第二电源信号。
在一些实施例中，当所述电源信号包括所述第一电源信号时，所述驱动芯片具体用于：
当根据所述第一像素区10的第一发光亮度信息，以及所述第二像素区20的第二发光亮度信息，确定所述第一像素区10的发光亮度高于所述第二像素区20的发光亮度时，降低所述第一像素区10的第一电源信号的电压值，和/或提高所述第二像素区20的第一电源信号的电压值；
当根据所述第一像素区10的第一发光亮度信息，以及所述第二像素区20的第二发光亮度信息，确定所述第一像素区10的发光亮度低于所述第二像素区20的发光亮度时，提高所述第一像素区10的第一电源信号的电压值，和/或降低所述第二像素区20的第一电源信号的电压值。
具体地，写入到像素中的所述第一电源信号的电压值越大，该像素的亮度越亮，因此驱动芯片可以根据获取的所述第一发光亮度信息和所述第二发光亮度信息，确定所述第一像素区10和所述第二像素区20的亮度关系，然后对所述第一像素区10和/或所述第二像素区20的第一电源信号的电压值进行调整。
在一些实施例中，当所述电源信号包括所述第二电源信号时，所述驱动 芯片具体用于：
当根据所述第一像素区10的第一发光亮度信息，以及所述第二像素区20的第二发光亮度信息，确定所述第一像素区10的发光亮度高于所述第二像素区20的发光亮度时，提高所述第一像素区10的第二电源信号的电压值，和/或降低所述第二像素区20的第二电源信号的电压值；
当根据所述第一像素区10的第一发光亮度信息，以及所述第二像素区20的第二发光亮度信息，确定所述第一像素区10的发光亮度低于所述第二像素区20的发光亮度时，降低所述第一像素区10的第二电源信号的电压值，和/或提高所述第二像素区20的第二电源信号的电压值。
具体地，当所述第二电源信号包括负电源信号时，写入到像素中的所述第二电源信号的电压值的绝对值越大，该像素的亮度越亮，因此驱动芯片可以根据获取的所述第一发光亮度信息和所述第二发光亮度信息，确定所述第一像素区10和所述第二像素区20的亮度关系，然后对所述第一像素区10和/或所述第二像素区20的第二电源信号的电压值进行调整。
在一些实施例中，所述亮度补偿电路还包括集成电源电路，所述集成电源电路用于为所述驱动芯片供电；
所述驱动芯片具体用于：控制所述集成电源电路调整向所述第一像素区10和/或所述第二像素区20提供的电源信号。
在一些实施例中，所述亮度补偿电路还包括集成电源电路，所述集成电源电路用于为所述驱动芯片供电；
所述驱动芯片具体用于：控制所述集成电源电路调整向所述第一像素区10提供的电源信号；
所述驱动芯片还具体用于：直接调整向所述第二像素区20提供的电源信号。
具体地，所述集成电源电路能够为驱动芯片(Driver IC)供电，所述驱动芯片能够控制PMIC输出电源信号。所述PMIC设置于系统主板上。
可以通过驱动芯片控制所述集成电源电路分别向所述第一像素区10和/或所述第二像素提供电源信号，也可以通过在驱动芯片内部增加第一电源模块和第二电源模块，驱动芯片通过第一电源模块直接向所述第一像素区10提 供电源信号，并通过第二电源模块直接向所述第二像素区20提供电源信号。
示例性的，当出现由于老化OLED电流下降时，驱动芯片根据反馈的第一发光亮度信息和第二发光亮度信息，通过系统主板(Main Set)控制调节PMIC输出合适的ELVDD电压给所述第一像素区10或所述第二像素区20，以改善面板老化和电流能力下降引起的显示装置显示不均一情况，更好的补偿显示亮度差异，提升显示装置的使用寿命。
示例性的，所述驱动芯片控制所述集成电源电路向所述第一像素区10提供ELVDD和ELVSS，驱动芯片直接向所述第二像素区20提供ELVDD和ELVSS，通过提供不同的ELVDD和/或ELVSS，来改变发光元件EL两端的压差，从而改变发光元件EL的发光亮度。
在一些实施例中，所述驱动芯片包括控制子电路、第一Gamma电路和第二Gamma电路；
所述控制子电路用于：根据所述第一像素区10的第一发光亮度信息，以及所述第二像素区20的第二发光亮度信息，控制所述第一Gamma电路产生第一Gamma电压信号，根据所述第一Gamma电压信号，产生向所述第一像素区10传输的第一数据信号；
所述控制子电路还用于：根据所述第一像素区10的第一发光亮度信息，以及所述第二像素区20的第二发光亮度信息，控制所述第二Gamma电路产生第二Gamma电压信号，根据所述第二Gamma电压信号，产生向所述第二像素区20传输的第二数据信号。
具体地，在驱动芯片内部设置控制子电路、第一Gamma电路和第二Gamma电路，第一Gamma电路与所述第一像素区10对应，第二Gamma电路与所述第二像素区20对应。
采用本公开实施例提供的亮度补偿电路实施上述亮度补偿方法时，控制子电路根据所述第一像素区10的第一发光亮度信息，以及所述第二像素区20的第二发光亮度信息，通过独立的Gamma电路产生对应不同像素区的Gamma电压信号，然后基于该Gamma电压信号，产生对应不同像素区的数据信号，并写入对应的像素区中，使得所述第一像素区10和所述第二像素区20能够实现显示亮度和色度均一。
采用本公开实施例提供的亮度补偿电路实施上述亮度补偿方法时，驱动芯片能够根据所述第一像素区10的第一发光亮度信息，以及所述第二像素区20的第二发光亮度信息，同时控制所述第一像素区10和/或所述第二像素区20的数据信号、ELVDD、ELVSS三个参数，以实现所述第一像素区10的亮度和色坐标均与所述第二像素区20相同。
在一些实施例中，所述控制子电路具体用于：
当根据所述第一像素区10的第一发光亮度信息，以及所述第二像素区20的第二发光亮度信息，确定所述第一像素区10的发光亮度高于所述第二像素区20的发光亮度时，控制增大所述第一Gamma电路产生的第一Gamma电压信号的范围，根据增大范围后的所述第一Gamma电压信号，产生向所述第一像素区10传输的第一数据信号；或者，控制减小所述第二Gamma电路产生第二Gamma电压信号的范围，根据减小范围后的所述第二Gamma电压信号，产生向所述第二像素区20传输的第二数据信号；
当根据所述第一像素区10的第一发光亮度信息，以及所述第二像素区20的第二发光亮度信息，确定所述第一像素区10的发光亮度低于所述第二像素区20的发光亮度时，控制减小所述第一Gamma电路产生的第一Gamma电压信号的范围，根据减小范围后的所述第一Gamma电压信号，产生向所述第一像素区10传输的第一数据信号；或者，控制增大所述第二Gamma电路产生第二Gamma电压信号的范围，根据增大范围后的所述第二Gamma电压信号，产生向所述第二像素区20传输的第二数据信号。
本公开实施例还提供了一种显示装置，包括上述实施例提供的亮度补偿电路。
示例性的，所述亮度补偿电路中的驱动芯片和集成电源电路均可以设置于所述显示装置的周边区域。
需要说明的是，所述显示装置可以为：电视、显示器、数码相框、手机、平板电脑等任何具有显示功能的产品或部件。
本公开实施例还提供了一种显示装置的亮度补偿电路，包括：处理器和存储器，所述存储器存储有计算机可执行指令，所述计算机可执行指令由所述处理器执行时以进行上述实施例提供的显示装置的亮度补偿方法。
具体地，该计算机可执行指令由所述处理器执行时实现如下步骤：
所述显示装置包括：显示区域和位于所述显示区域周边的周边区域，所述显示区域包括第一像素区和第二像素区，所述第二像素区的像素密度低于所述第一像素区的像素密度；所述亮度补偿方法包括：
获取所述第一像素区的第一发光亮度信息，以及所述第二像素区的第二发光亮度信息；
根据所述第一像素区的第一发光亮度信息，以及所述第二像素区的第二发光亮度信息，分别调整所述第一像素区的电源信号和/或所述第二像素区的电源信号。
可选的，所述电源信号包括所述第一电源信号和/或所述第二电源信号；所述第一电源信号用于生成驱动像素发光的驱动信号，所述显示装置中各像素的阴极接入所述第二电源信号。
可选的，当所述电源信号包括所述第一电源信号时，所述分别调整所述第一像素区的电源信号和/或所述第二像素区的电源信号的步骤具体包括：
当根据所述第一像素区的第一发光亮度信息，以及所述第二像素区的第二发光亮度信息，确定所述第一像素区的发光亮度高于所述第二像素区的发光亮度时，降低所述第一像素区的第一电源信号的电压值，和/或提高所述第二像素区的第一电源信号的电压值；
当根据所述第一像素区的第一发光亮度信息，以及所述第二像素区的第二发光亮度信息，确定所述第一像素区的发光亮度低于所述第二像素区的发光亮度时，提高所述第一像素区的第一电源信号的电压值，和/或降低所述第二像素区的第一电源信号的电压值。
可选的，当所述电源信号包括所述第二电源信号时，所述分别调整所述第一像素区的电源信号和/或所述第二像素区的电源信号的步骤具体包括：
当根据所述第一像素区的第一发光亮度信息，以及所述第二像素区的第二发光亮度信息，确定所述第一像素区的发光亮度高于所述第二像素区的发光亮度时，提高所述第一像素区的第二电源信号的电压值，和/或降低所述第二像素区的第二电源信号的电压值；
当根据所述第一像素区的第一发光亮度信息，以及所述第二像素区的第 二发光亮度信息，确定所述第一像素区的发光亮度低于所述第二像素区的发光亮度时，降低所述第一像素区的第二电源信号的电压值，和/或提高所述第二像素区的第二电源信号的电压值。
可选的，所述分别调整所述第一像素区的电源信号和/或所述第二像素区的电源信号的步骤具体包括：
控制集成电源电路调整向所述第一像素区和/或所述第二像素区提供的电源信号。
可选的，所述显示装置还包括第一Gamma电路和第二Gamma电路；所述亮度补偿方法还包括：
根据所述第一像素区的第一发光亮度信息，以及所述第二像素区的第二发光亮度信息，控制所述第一Gamma电路产生第一Gamma电压信号，根据所述第一Gamma电压信号，产生向所述第一像素区传输的第一数据信号；
根据所述第一像素区的第一发光亮度信息，以及所述第二像素区的第二发光亮度信息，控制所述第二Gamma电路产生第二Gamma电压信号，根据所述第二Gamma电压信号，产生向所述第二像素区传输的第二数据信号。
可选的，当根据所述第一像素区的第一发光亮度信息，以及所述第二像素区的第二发光亮度信息，确定所述第一像素区的发光亮度高于所述第二像素区的发光亮度时，控制增大所述第一Gamma电路产生的第一Gamma电压信号的范围，根据增大范围后的所述第一Gamma电压信号，产生向所述第一像素区传输的第一数据信号；或者，控制减小所述第二Gamma电路产生第二Gamma电压信号的范围，根据减小范围后的所述第二Gamma电压信号，产生向所述第二像素区传输的第二数据信号；
当根据所述第一像素区的第一发光亮度信息，以及所述第二像素区的第二发光亮度信息，确定所述第一像素区的发光亮度低于所述第二像素区的发光亮度时，控制减小所述第一Gamma电路产生的第一Gamma电压信号的范围，根据减小范围后的所述第一Gamma电压信号，产生向所述第一像素区传输的第一数据信号；或者，控制增大所述第二Gamma电路产生第二Gamma电压信号的范围，根据增大范围后的所述第二Gamma电压信号，产生向所述第二像素区传输的第二数据信号。
采用本公开实施例提供的显示装置的亮度补偿装置实施上述方法时，在出现第一像素区和第二像素区显示亮度不均一时，处理器能够基于所述第一像素区的第一发光亮度信息，以及所述第二像素区的第二发光亮度信息，对第一像素区的电源信号和/或所述第二像素区的电源信号分别调整，从而控制第一像素区和/或第二像素区中的像素的驱动电流发生变化，使所述第一像素区的显示亮度和所述第二像素区的显示亮度均一，实现对显示装置的亮度补偿。
采用本公开实施例提供的显示装置的亮度补偿装置实施上述方法时，处理器可以根据实际需要选择对第一像素区、第二像素区中的第一电源信号和/或第二电源信号进行调节，从而更好的实现对显示装置的亮度补偿。
采用本公开实施例提供的显示装置的亮度补偿装置实施上述方法时，处理器根据所述第一像素区的第一发光亮度信息，以及所述第二像素区的第二发光亮度信息，通过独立的Gamma电路产生对应不同像素区的Gamma电压信号，然后基于该Gamma电压信号，产生对应不同像素区的数据信号，并写入对应的像素区中，使得所述第一像素区和所述第二像素区能够实现显示亮度和色度均一。
采用本公开实施例提供的显示装置的亮度补偿装置实施上述方法时，处理器能够根据所述第一像素区的第一发光亮度信息，以及所述第二像素区的第二发光亮度信息，同时控制所述第一像素区和/或所述第二像素区的数据信号、ELVDD、ELVSS三个参数，以实现所述第一像素区的亮度和色坐标均与所述第二像素区相同。
本公开实施例还提供了一种非易失性存储介质，存储有计算机可执行指令，所述计算机可执行指令由处理器执行时以进行上述实施例提供的显示装置的亮度补偿方法实施例的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。其中，所述的计算机可读存储介质，如只读存储器(Read-Only Memory，简称ROM)、随机存取存储器(Random Access Memory，简称RAM)、磁碟或者光盘等。
需要说明，本说明书中的各个实施例均采用递进的方式描述，各个实施例之间相同相似的部分互相参见即可，每个实施例重点说明的都是与其他实 施例的不同之处。尤其，对于产品实施例而言，由于其基本相似于方法实施例，所以描述得比较简单，相关之处参见产品实施例的部分说明即可。
除非另外定义，本公开使用的技术术语或者科学术语应当为本公开所属领域内具有一般技能的人士所理解的通常意义。本公开中使用的“第一”、“第二”以及类似的词语并不表示任何顺序、数量或者重要性，而只是用来区分不同的组成部分。“包括”或者“包含”等类似的词语意指出现该词前面的元件或者物件涵盖出现在该词后面列举的元件或者物件及其等同，而不排除其他元件或者物件。“连接”、“耦接”或者“相连”等类似的词语并非限定于物理的或者机械的连接，而是可以包括电性的连接，不管是直接的还是间接的。“上”、“下”、“左”、“右”等仅用于表示相对位置关系，当被描述对象的绝对位置改变后，则该相对位置关系也可能相应地改变。
可以理解，当诸如层、膜、区域或基板之类的元件被称作位于另一元件“上”或“下”时，该元件可以“直接”位于另一元件“上”或“下”，或者可以存在中间元件。
在上述实施方式的描述中，具体特征、结构、材料或者特点可以在任何的一个或多个实施例或示例中以合适的方式结合。
以上所述，仅为本公开的具体实施方式，但本公开的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本公开揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本公开的保护范围之内。因此，本公开的保护范围应以所述权利要求的保护范围为准。

Claims (18)

  1. 一种显示装置的亮度补偿方法，所述显示装置包括：显示区域和位于所述显示区域周边的周边区域，所述显示区域包括第一像素区和第二像素区，所述第二像素区的像素密度低于所述第一像素区的像素密度；所述亮度补偿方法包括：
    获取所述第一像素区的第一发光亮度信息，以及所述第二像素区的第二发光亮度信息；
    根据所述第一像素区的第一发光亮度信息，以及所述第二像素区的第二发光亮度信息，分别调整所述第一像素区的电源信号和/或所述第二像素区的电源信号。
  2. 根据权利要求1所述的显示装置的亮度补偿方法，其中，所述电源信号包括第一电源信号和/或第二电源信号；所述第一电源信号用于生成驱动像素发光的驱动信号，所述显示装置中各像素的阴极接入所述第二电源信号。
  3. 根据权利要求2所述的显示装置的亮度补偿方法，其中，当所述电源信号包括所述第一电源信号时，所述分别调整所述第一像素区的电源信号和/或所述第二像素区的电源信号的步骤具体包括：
    当根据所述第一像素区的第一发光亮度信息，以及所述第二像素区的第二发光亮度信息，确定所述第一像素区的发光亮度高于所述第二像素区的发光亮度时，降低所述第一像素区的第一电源信号的电压值，和/或提高所述第二像素区的第一电源信号的电压值；
    当根据所述第一像素区的第一发光亮度信息，以及所述第二像素区的第二发光亮度信息，确定所述第一像素区的发光亮度低于所述第二像素区的发光亮度时，提高所述第一像素区的第一电源信号的电压值，和/或降低所述第二像素区的第一电源信号的电压值。
  4. 根据权利要求2所述的显示装置的亮度补偿方法，其中，当所述电源信号包括所述第二电源信号时，所述分别调整所述第一像素区的电源信号和/或所述第二像素区的电源信号的步骤具体包括：
    当根据所述第一像素区的第一发光亮度信息，以及所述第二像素区的第 二发光亮度信息，确定所述第一像素区的发光亮度高于所述第二像素区的发光亮度时，提高所述第一像素区的第二电源信号的电压值，和/或降低所述第二像素区的第二电源信号的电压值；
    当根据所述第一像素区的第一发光亮度信息，以及所述第二像素区的第二发光亮度信息，确定所述第一像素区的发光亮度低于所述第二像素区的发光亮度时，降低所述第一像素区的第二电源信号的电压值，和/或提高所述第二像素区的第二电源信号的电压值。
  5. 根据权利要求1所述的显示装置的亮度补偿方法，其中，所述分别调整所述第一像素区的电源信号和/或所述第二像素区的电源信号的步骤具体包括：
    控制集成电源电路调整向所述第一像素区和/或所述第二像素区提供的电源信号。
  6. 根据权利要求1所述的显示装置的亮度补偿方法，其中，所述显示装置还包括第一Gamma电路和第二Gamma电路；所述亮度补偿方法还包括：
    根据所述第一像素区的第一发光亮度信息，以及所述第二像素区的第二发光亮度信息，控制所述第一Gamma电路产生第一Gamma电压信号，根据所述第一Gamma电压信号，产生向所述第一像素区传输的第一数据信号；
    根据所述第一像素区的第一发光亮度信息，以及所述第二像素区的第二发光亮度信息，控制所述第二Gamma电路产生第二Gamma电压信号，根据所述第二Gamma电压信号，产生向所述第二像素区传输的第二数据信号。
  7. 根据权利要求6所述的显示装置的亮度补偿方法，其中，
    当根据所述第一像素区的第一发光亮度信息，以及所述第二像素区的第二发光亮度信息，确定所述第一像素区的发光亮度高于所述第二像素区的发光亮度时，控制增大所述第一Gamma电路产生的第一Gamma电压信号的范围，根据增大范围后的所述第一Gamma电压信号，产生向所述第一像素区传输的第一数据信号；或者，控制减小所述第二Gamma电路产生第二Gamma电压信号的范围，根据减小范围后的所述第二Gamma电压信号，产生向所述第二像素区传输的第二数据信号；
    当根据所述第一像素区的第一发光亮度信息，以及所述第二像素区的第 二发光亮度信息，确定所述第一像素区的发光亮度低于所述第二像素区的发光亮度时，控制减小所述第一Gamma电路产生的第一Gamma电压信号的范围，根据减小范围后的所述第一Gamma电压信号，产生向所述第一像素区传输的第一数据信号；或者，控制增大所述第二Gamma电路产生第二Gamma电压信号的范围，根据增大范围后的所述第二Gamma电压信号，产生向所述第二像素区传输的第二数据信号。
  8. 一种显示装置的亮度补偿电路，所述显示装置包括：显示区域和位于所述显示区域周边的周边区域，所述显示区域包括第一像素区和第二像素区，所述第二像素区的像素密度低于所述第一像素区的像素密度；所述亮度补偿电路包括驱动芯片；
    所述驱动芯片用于获取所述第一像素区的第一发光亮度信息，以及所述第二像素区的第二发光亮度信息；
    所述驱动芯片还用于：根据所述第一像素区的第一发光亮度信息，以及所述第二像素区的第二发光亮度信息，分别调整所述第一像素区的电源信号和/或所述第二像素区的电源信号。
  9. 根据权利要求8所述的显示装置的亮度补偿电路，其中，
    所述电源信号包括第一电源信号和/或第二电源信号；所述第一电源信号用于生成驱动像素发光的驱动信号，所述显示装置中各像素的阴极接入所述第二电源信号。
  10. 根据权利要求9所述的显示装置的亮度补偿电路，其中，当所述电源信号包括所述第一电源信号时，所述驱动芯片具体用于：
    当根据所述第一像素区的第一发光亮度信息，以及所述第二像素区的第二发光亮度信息，确定所述第一像素区的发光亮度高于所述第二像素区的发光亮度时，降低所述第一像素区的第一电源信号的电压值，和/或提高所述第二像素区的第一电源信号的电压值；
    当根据所述第一像素区的第一发光亮度信息，以及所述第二像素区的第二发光亮度信息，确定所述第一像素区的发光亮度低于所述第二像素区的发光亮度时，提高所述第一像素区的第一电源信号的电压值，和/或降低所述第二像素区的第一电源信号的电压值。
  11. 根据权利要求9所述的显示装置的亮度补偿电路，其中，当所述电源信号包括所述第二电源信号时，所述驱动芯片具体用于：
    当根据所述第一像素区的第一发光亮度信息，以及所述第二像素区的第二发光亮度信息，确定所述第一像素区的发光亮度高于所述第二像素区的发光亮度时，提高所述第一像素区的第二电源信号的电压值，和/或降低所述第二像素区的第二电源信号的电压值；
    当根据所述第一像素区的第一发光亮度信息，以及所述第二像素区的第二发光亮度信息，确定所述第一像素区的发光亮度低于所述第二像素区的发光亮度时，降低所述第一像素区的第二电源信号的电压值，和/或提高所述第二像素区的第二电源信号的电压值。
  12. 根据权利要求8所述的显示装置的亮度补偿电路，其中，所述亮度补偿电路还包括集成电源电路，所述集成电源电路用于为所述驱动芯片供电；
    所述驱动芯片具体用于：控制所述集成电源电路调整向所述第一像素区和/或所述第二像素区提供的电源信号。
  13. 根据权利要求8所述的显示装置的亮度补偿电路，其中，所述亮度补偿电路还包括集成电源电路，所述集成电源电路用于为所述驱动芯片供电；
    所述驱动芯片具体用于：控制所述集成电源电路调整向所述第一像素区提供的电源信号；
    所述驱动芯片还具体用于：直接调整向所述第二像素区提供的电源信号。
  14. 根据权利要求8所述的显示装置的亮度补偿电路，其中，所述驱动芯片包括控制子电路、第一Gamma电路和第二Gamma电路；
    所述控制子电路用于：根据所述第一像素区的第一发光亮度信息，以及所述第二像素区的第二发光亮度信息，控制所述第一Gamma电路产生第一Gamma电压信号，根据所述第一Gamma电压信号，产生向所述第一像素区传输的第一数据信号；
    所述控制子电路还用于：根据所述第一像素区的第一发光亮度信息，以及所述第二像素区的第二发光亮度信息，控制所述第二Gamma电路产生第二Gamma电压信号，根据所述第二Gamma电压信号，产生向所述第二像素区传输的第二数据信号。
  15. 根据权利要求14所述的显示装置的亮度补偿电路，其中，所述控制子电路具体用于：
    当根据所述第一像素区的第一发光亮度信息，以及所述第二像素区的第二发光亮度信息，确定所述第一像素区的发光亮度高于所述第二像素区的发光亮度时，控制增大所述第一Gamma电路产生的第一Gamma电压信号的范围，根据增大范围后的所述第一Gamma电压信号，产生向所述第一像素区传输的第一数据信号；或者，控制减小所述第二Gamma电路产生第二Gamma电压信号的范围，根据减小范围后的所述第二Gamma电压信号，产生向所述第二像素区传输的第二数据信号；
    当根据所述第一像素区的第一发光亮度信息，以及所述第二像素区的第二发光亮度信息，确定所述第一像素区的发光亮度低于所述第二像素区的发光亮度时，控制减小所述第一Gamma电路产生的第一Gamma电压信号的范围，根据减小范围后的所述第一Gamma电压信号，产生向所述第一像素区传输的第一数据信号；或者，控制增大所述第二Gamma电路产生第二Gamma电压信号的范围，根据增大范围后的所述第二Gamma电压信号，产生向所述第二像素区传输的第二数据信号。
  16. 一种显示装置，包括如权利要求8～15中任一项所述的亮度补偿电路。
  17. 一种显示装置的亮度补偿电路，包括：处理器和存储器，所述存储器存储有计算机可执行指令，所述计算机可执行指令由所述处理器执行时以进行如权利要求1-7中任一项所述的显示装置的亮度补偿方法。
  18. 一种非易失性存储介质，存储有计算机可执行指令，所述计算机可执行指令由处理器执行时以进行如权利要求1-7中的任一项所述的显示装置的亮度补偿方法。
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