WO2015180374A1 - 显示器件的亮度补偿方法、亮度补偿装置及显示器件 - Google Patents

显示器件的亮度补偿方法、亮度补偿装置及显示器件 Download PDF

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Publication number
WO2015180374A1
WO2015180374A1 PCT/CN2014/088689 CN2014088689W WO2015180374A1 WO 2015180374 A1 WO2015180374 A1 WO 2015180374A1 CN 2014088689 W CN2014088689 W CN 2014088689W WO 2015180374 A1 WO2015180374 A1 WO 2015180374A1
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Prior art keywords
compensation information
brightness compensation
display device
pixels
brightness
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PCT/CN2014/088689
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English (en)
French (fr)
Inventor
张向飞
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京东方科技集团股份有限公司
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Priority to US14/436,967 priority Critical patent/US10453384B2/en
Priority to EP14853155.1A priority patent/EP3151227A4/en
Publication of WO2015180374A1 publication Critical patent/WO2015180374A1/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]
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
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    • 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
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    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
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    • 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
    • G09G2300/0866—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 by means of changes in the pixel supply voltage
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
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    • G09G2320/043—Preventing or counteracting the effects of ageing
    • G09G2320/045—Compensation of drifts in the characteristics of light emitting or modulating elements
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
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    • G09G2320/0626—Adjustment of display parameters for control of overall brightness
    • G—PHYSICS
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    • G09G2360/141—Detecting light within display terminals, e.g. using a single or a plurality of photosensors the light conveying information used for selecting or modulating the light emitting or modulating element
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    • G09G2360/00—Aspects of the architecture of display systems
    • G09G2360/14—Detecting light within display terminals, e.g. using a single or a plurality of photosensors
    • G09G2360/145—Detecting light within display terminals, e.g. using a single or a plurality of photosensors the light originating from the display screen
    • G—PHYSICS
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    • G09G2360/00—Aspects of the architecture of display systems
    • G09G2360/14—Detecting light within display terminals, e.g. using a single or a plurality of photosensors
    • G09G2360/145—Detecting light within display terminals, e.g. using a single or a plurality of photosensors the light originating from the display screen
    • G09G2360/147—Detecting light within display terminals, e.g. using a single or a plurality of photosensors the light originating from the display screen the originated light output being determined for each pixel

Definitions

  • Embodiments of the present invention provide a brightness compensation method, a brightness compensation device, and a display device of a display device.
  • OLED display devices Under the current process conditions, organic light emitting diode (OLED) display devices have spatial and temporal non-uniformities, and as the size of display devices becomes larger, such problems are increasingly exposed. Obviously, how to solve the display unevenness of large-size OLED display devices has become one of the key technologies in mass production.
  • the display unevenness of the OLED display device is closely related to the fabrication process. When the threshold voltage between the pixels of the entire display panel is largely different, the brightness uniformity of the entire display device is deteriorated.
  • organic materials also have a problem of constantly changing brightness during their own lifetime. Therefore, various compensation methods are needed to improve display unevenness.
  • the compensation method can be divided into two categories: internal compensation and external compensation.
  • Internal compensation refers to a method of compensating a sub-circuit built by a Thin Film Transistor (TFT) inside a pixel;
  • external compensation refers to extracting a TFT or OLED signal to the outside of the display panel, and then passing an external ASIC (Application Specific) Integrated Circuit (ASIC) method of compensation.
  • ASIC Application Specific
  • the internally compensated pixel structure and driving method are complicated; and in the display applications of large-size high-resolution and high-refresh frequency, the internal compensation method causes the aperture ratio to decrease and the driving speed to be slow.
  • External compensation has a simple pixel structure, faster drive speed and better compensation.
  • External compensation can be divided into optical extraction and electrical extraction according to different data extraction methods.
  • the optical extraction type refers to extracting a brightness signal by an image sensor, for example, a photo charge coupled device (CCD), and electrically extracting the TFT through a sensing circuit of the driving chip. And the electrical signal of the OLED is extracted.
  • CCD photo charge coupled device
  • the two methods extract different types of signals, so the way data is processed is different. It is now necessary to achieve high quality brightness compensation while reducing the hardware cost while performing brightness compensation on the display device.
  • Embodiments of the present invention provide a brightness compensation method, a brightness compensation device, and a display device for a display device, which are used to reduce the amount of stored data of compensation information in a process of improving brightness uniformity of a display device, thereby reducing hardware cost.
  • an embodiment of the present invention provides a brightness compensation method for a display device, comprising: acquiring a preset first brightness compensation information list of the display device, where the first brightness compensation information list includes a part of pixels of the display device. Initial brightness compensation information; regenerating target brightness compensation information of all pixels of the display device according to the first brightness compensation information list; performing brightness compensation on the input image according to the target brightness compensation information of all pixels of the display device, Wherein, some of the pixels are dispersed from all pixels of the display device.
  • an embodiment of the present invention provides a brightness compensation device for a display device, including: an acquisition unit configured to: acquire a preset first brightness compensation information list of the display device, the first brightness compensation information list The initial brightness compensation information of the partial pixels of the display device is included; the regenerating unit is configured to: regenerate target brightness compensation information of all pixels of the display device according to the first brightness compensation information list; and the compensation unit is configured to: The target luminance compensation information for all pixels of the display device is luminance compensated for the input image, wherein a portion of the pixels are dispersed from all pixels of the display device.
  • embodiments of the present invention also provide a display device including the above-described brightness compensation device.
  • 1 is a schematic diagram of the principle of an exemplary external optical compensation scheme
  • FIG. 2 is a schematic diagram of a method of calculating an exemplary external optical compensation
  • FIG. 3 is a schematic diagram showing an exemplary arrangement of sub-pixels of a display device
  • FIG. 4 is a schematic diagram of a pixel array of a display device
  • FIG. 5 is a schematic diagram of a pixel array composed of an exemplary method of selecting a portion of pixels according to an embodiment of the invention
  • FIG. 6 is a schematic diagram of a list of target luminance compensation information of all pixels that are exemplary regenerated according to an embodiment of the present invention
  • FIG. 7 is a schematic structural diagram of a brightness compensation apparatus for a display device according to an embodiment of the present invention.
  • FIG. 8 is a structural block diagram of a display device including a brightness compensation device according to an embodiment of the present invention.
  • Embodiments of the present invention provide a brightness compensation method, a brightness compensation device, and a display device for a display device, which are used to reduce the amount of stored data of compensation information in a process of improving brightness uniformity of a display device, thereby reducing hardware cost.
  • FIG. 1 is a schematic diagram of an exemplary external optical compensation scheme, typically an CCD camera.
  • the method compares the brightness value obtained by photographing with the ideal value, and then selects the appropriate gray scale offset ⁇ G in a stepwise approximation manner, as shown in FIG. 2 .
  • the compensation accuracy of this method depends on the size of ⁇ G, the compensation range is (2 n -1) ⁇ G, and n is the number of measurements. For each pixel of the display device, one such compensation information is obtained, and all the obtained compensation information is stored in the memory of the display device, and when the display device is normally displayed, the compensation information is read from the memory, and then The display device performs brightness compensation.
  • the display device includes i rows and j columns of pixels, and the display device includes i ⁇ j pixels. Assuming each pixel includes three sub-pixels: a red pixel R, a green pixel G, and a blue pixel B, the display device can Includes i ⁇ j ⁇ 3 sub-pixels. For example, as shown in FIG. 3, for a display device of 5 rows and 5 columns, the display device includes 5 x 15 sub-pixels. When the input image of the display device is subjected to luminance compensation, luminance compensation is performed for each sub-pixel of the display device.
  • the first brightness compensation information list includes initial brightness compensation information of a part of pixels of the display device
  • pixels are dispersed from all pixels of the display device.
  • the initial brightness compensation information is determined based on a test brightness value and a target brightness value of the pixel under the test pattern.
  • the test brightness value is obtained by an image sensor
  • the target brightness value may be preset or may be an average value obtained from the test brightness value.
  • the first brightness compensation information list of the display device is set in advance, wherein the first brightness compensation information list includes initial brightness compensation information of a part of the pixels of the display device, and the first brightness is obtained.
  • the compensation information list is stored.
  • the first brightness compensation information list of the preset display device is acquired, such that the data amount of the first brightness compensation information list is significantly smaller than the data amount of the initial brightness compensation information of all the pixels, thereby storing the space and transmitting The requirement of the bandwidth is reduced, thereby reducing the hardware cost; and further, the target brightness compensation information of all the pixels of the display device is regenerated according to the first brightness compensation information list to compensate the information according to the target brightness of all the pixels of the display device.
  • the input image is brightness compensated to achieve high quality brightness compensation for each pixel.
  • setting the first brightness compensation information list in advance comprises: selecting initial brightness compensation information of a part of pixels of all pixels of the display device to generate the first brightness compensation information list.
  • selecting the initial brightness compensation information of a part of the pixels of all the pixels of the display device to generate the first brightness compensation information list includes: selecting, in all the pixels of the display device, the intersection of the odd line and the odd column The initial brightness compensation information of the upper pixel generates a first brightness compensation information list; or, the initial brightness compensation information of the pixels located at the intersection of the odd line and the even column is selected to generate a first brightness compensation information list; or, the selection is located in the even line and The initial luminance compensation information of the pixels at the intersection of the odd-numbered columns generates a first luminance compensation information list; or the initial luminance compensation information of the pixels located at the intersection of the even-numbered rows and the even-numbered columns is used to generate a first luminance compensation information list.
  • the difference of the initial brightness compensation information between adjacent pixels of the display device is not large, so the initial brightness compensation information and the discarded initial brightness are ensured to the utmost by the above selection method.
  • the difference between the compensation information is small, and the distribution of the selected initial brightness compensation information is relatively uniform, which is advantageous for subsequently generating the target brightness compensation information of all the pixels according to the first brightness compensation information list.
  • the method for generating the first brightness compensation information list according to the initial brightness compensation information is not limited to the above method.
  • the initial brightness compensation information may be further divided into multiple regions, and each region selects initial luminance compensation information of one pixel.
  • the initial luminance compensation information selected for each of the regions is generated into a first luminance compensation information list.
  • the process of selecting initial brightness compensation information of a part of pixels may include the following manners:
  • the test brightness value of the pixel when the test brightness value of the pixel is collected, only the test brightness value of the partial pixel is collected, and further only for the selected pixels, for each selected pixel, according to the test brightness value and target under the test pattern.
  • the brightness value determines the initial brightness compensation information of the pixel, that is, the above selection process occurs in the acquisition phase of the test brightness value of the pixel;
  • the test brightness value of all the pixels is collected, and for each pixel, the initial brightness compensation information of the pixel is determined according to the test brightness value and the target brightness value of the pixel under the test pattern; further, the first brightness is formed.
  • the initial brightness compensation information of the partial pixels is selected to constitute the first brightness compensation information list, that is, the above selected process occurs in the generation stage of the first brightness compensation information list.
  • the re-generating target brightness compensation information of all pixels of the display device according to the first brightness compensation information list includes:
  • the initial luminance compensation information of each pixel in the first luminance compensation information list is used as target luminance compensation information of the pixel and as target luminance compensation information of a pixel adjacent to the pixel.
  • the target luminance compensation information of the pixel is selected as the target luminance compensation information of the pixel adjacent to the right of the pixel, the target luminance compensation information of the pixel adjacent to the lower side, and the target luminance compensation information of the pixel adjacent to the lower right.
  • re-generating the target brightness compensation information of all the pixels of the display device according to the first brightness compensation information list is not limited to the above method, as long as it can ensure that the target brightness compensation information is regenerated for each pixel.
  • obtaining the first brightness compensation information list includes:
  • the data is read from the volatile memory at a faster speed, it is possible to quickly compensate for each sub-pixel of the input image when the display device displays the picture in real time.
  • the obtaining the first brightness compensation information list further includes:
  • the volatile memory saves data for a short time, by storing the first brightness compensation information list in the non-volatile memory, the life of the stored data can be ensured; meanwhile, when the display device is in normal operation, the The first brightness compensation information list is read from the non-volatile memory into the volatile memory, and the first brightness compensation information list is obtained from the volatile memory in real time, thereby ensuring the efficiency of real-time compensation.
  • the process of setting the first brightness compensation information list is done before the display device product leaves the factory.
  • the first brightness compensation information list is preset, including:
  • Step S401 selecting, among all pixels of the display device, pixels that need to collect test brightness values
  • Step S402 determining, for each pixel selected, initial brightness compensation information of the pixel according to the test brightness value and the target brightness value of the pixel under the test pattern;
  • Step S403 The initial brightness compensation information of the selected pixel is composed into the first brightness compensation information list.
  • initial luminance compensation information of each pixel includes initial luminance compensation information of the sub-pixel R, initial luminance compensation information of the sub-pixel G, and sub-pixel B Initial brightness compensation information.
  • the pixel arrangement of the display device is, for example, as shown in FIG. 4, wherein R ij is the sub-pixel R in the pixel of the i-th row and the j-th column, and G ij is in the pixel of the i-th row and the j-th column.
  • the sub-pixel G, B ij is the sub-pixel B in the pixel of the i-th row and the j-th column; in the pixel array as shown in FIG. 4, the pixel that needs to collect the test luminance value may be selected as follows:
  • the pixels of the three columns, the pixels of the third row and the third column, and the pixels of the i-th row and the j-th column, the pixels of the i+2th row and the jth column, the i-th row, the j+2th column, and the i+2th row The pixels of the j+2 column, where i and j take an odd number.
  • step S402 the initial brightness compensation information of the pixel is determined according to the test brightness value and the target brightness value of each pixel under the test pattern, and the test pattern may be determined according to the test gray level value, and the measured test brightness value and the target brightness are determined. The values are compared, and then the appropriate gray scale offset ⁇ G is selected in a stepwise approximation manner, as shown in FIG. 2, such that each initial luminance compensation information is a gray scale variation.
  • the initial brightness compensation information may also be determined by other methods.
  • the initial brightness compensation information is not limited to a gray scale change amount or a brightness compensation coefficient. That is to say, no matter which method is adopted, it is only necessary to determine the initial brightness compensation information.
  • Step S403 Generate initial brightness compensation information of the selected pixel to generate a first brightness compensation information list.
  • the first brightness compensation information list is stored in a memory of the display device.
  • the volatile memory reads data at a high speed. Therefore, when the first brightness compensation information list is saved in the memory of the display device, the first A list of brightness compensation information is saved to the non-volatile memory of the display device.
  • the data size composed of these compensation information is i*j*3*n bits, and n represents the initial luminance compensation information of each sub-pixel. Bit width. Taking the resolution of 3840*2160 as an example, the data size of these compensation information is 3840*2160*3*n bits, and the size of these data determines the capacity of the non-volatile memory and the volatile memory, assuming each sub-pixel.
  • the initial brightness compensation information has a bit width of 16 bits, and the data size of the compensation information is close to 400 Mbits, which means that the capacity of the nonvolatile memory and the volatile memory are both greater than 400 Mbits, and the real-time compensation is performed.
  • the data bandwidth requirements for the control components are also high. Since the display device is a consumer electronic product and is sensitive to cost, in mass production, in order to reduce hardware costs, it is critical to reduce the data size of these compensation information.
  • the brightness compensation method of the display device provided by the embodiment of the present invention also takes the resolution of 3840*2160 as an example.
  • the data size of the first brightness compensation information list is only 3840*2160*3*n/4, which greatly reduces the size.
  • the need for capacity for volatile and non-volatile memory and the need for transmission bandwidth reduces hardware costs during production.
  • the first brightness compensation information list is first read from the non-volatile memory into the volatile memory, and the first brightness compensation information list is obtained in real time from the volatile memory, thereby real-time The brightness compensation is performed to finally improve the brightness uniformity of the display device.
  • the method of compensating for the brightness of the display device when the display device is operating normally is as follows:
  • Step S701 Acquire a preset first brightness compensation information list of the display device, where the first brightness compensation information list includes initial brightness compensation information of a part of pixels of the display device; wherein a part of the pixels are dispersed from the display device All pixels;
  • Step S702 Regenerating target brightness compensation information of all pixels of the display device according to the first brightness compensation information list
  • Step S703 input image according to target brightness compensation information of all pixels of the display device Perform brightness compensation.
  • step S701 the first brightness compensation information list of the display device set in advance is read from the non-volatile memory into the volatile memory, and the first time is obtained from the volatile memory in real time.
  • a list of brightness compensation information is read from the non-volatile memory into the volatile memory, and the first time is obtained from the volatile memory in real time.
  • step S702 by way of example, the following manner may be adopted:
  • the initial luminance compensation information of each pixel in the first luminance compensation information list is used as target luminance compensation information of the pixel and target luminance compensation information as three pixels adjacent to the pixel.
  • the initial brightness compensation information of the pixels in the first row and the first column is taken as the first row and the first column.
  • the initial luminance compensation information of the pixels of the i-th row and the jth column is the initial luminance compensation information of the pixels of the i-th row and the j-th column, and the target luminance compensation information of the pixels of the i-th row and the j-th column, the ith row Target luminance compensation information of the pixel of the j+1th column, target luminance compensation information of the pixel of the (i+1)th row and the j+1th column, wherein the values of i and j are both odd and more intuitive, according to the A list of target luminance
  • PR i,j is the initial luminance compensation information of the sub-pixel R of the pixel of the i-th row and the j-th column
  • PG i,j is the pixel of the i-th row and the j-th column
  • the initial luminance compensation information of the sub-pixel G, PB i,j is the initial luminance compensation information of the sub-pixel B of the pixel of the i-th row and the j-th column.
  • step S703 the input image is subjected to brightness compensation according to the target brightness compensation information of all the pixels of the display device. This step uses techniques known to the inventors, and the detailed process will not be described again.
  • the first brightness compensation information list of the display device is set in advance, wherein the first brightness compensation information list includes initial brightness compensation information of a part of the pixels of the display device, and the first brightness is obtained.
  • the compensation information list is stored, and when the display is normally displayed, the first brightness compensation information list of the display device is preset, so that the data amount of the first brightness compensation information list is significantly smaller than the data amount of the initial brightness compensation information of all the pixels, thereby The requirement for the storage space and the transmission bandwidth is reduced, thereby reducing the hardware cost; and further, the target brightness compensation information of all the pixels of the display device is regenerated according to the first brightness compensation information list, according to all the pixels of the display device.
  • Target brightness compensation information for input image Luminance compensation is performed to achieve high quality brightness compensation for each pixel.
  • the brightness compensation method of the display device provided by the embodiment of the present invention is described in detail below.
  • the brightness compensation device of the display device provided by the embodiment of the present invention will be described below with reference to the accompanying drawings.
  • a brightness compensation apparatus includes:
  • the acquiring unit Z91 is configured to: obtain a preset first brightness compensation information list of the display device, where the first brightness compensation information list includes initial brightness compensation information of a part of pixels of the display device, and part of the pixel dispersion is taken from All pixels of the display device;
  • Regenerating unit Z92 configured to: regenerate target brightness compensation information of all pixels of the display device according to the first brightness compensation information list;
  • the compensation unit Z93 is configured to perform brightness compensation on the input image according to target brightness compensation information of all pixels of the display device.
  • the initial brightness compensation information is determined in advance according to the test brightness value and the target brightness value of the pixel under the test pattern.
  • the above brightness compensation device may be a control module of a display device.
  • the acquisition unit, the regeneration unit, and the compensation unit may each be implemented by, for example, a processor.
  • the first brightness compensation information list of the display device is set in advance, wherein the first brightness compensation information list includes initial brightness compensation information of a part of pixels of all pixels of the display device,
  • the first brightness compensation information list is stored, and when the display is normally displayed, the first brightness compensation information list of the display device is preset, so that the data amount of the first brightness compensation information list is significantly smaller than the initial brightness compensation information of all the pixels.
  • the amount of data thereby reducing the storage space and the transmission bandwidth, thereby reducing the hardware cost; and further regenerating the target brightness compensation information of all pixels of the display device according to the first brightness compensation information list, according to the display
  • the target brightness compensation information for all pixels of the device is brightness compensated for the input image, achieving high quality brightness compensation for each pixel.
  • the brightness compensation device further includes:
  • a preset unit configured to: in the pixel array of the display device, select the initial brightness supplemental information of a part of the pixels of all the pixels of the display device to generate the first brightness compensation information list.
  • the preset unit is configured to: select an image located at an intersection of an odd row and an odd column
  • the initial brightness compensation information of the element generates a first brightness compensation information list; or, the initial brightness compensation information of the pixels located at the intersection of the odd line and the even column is selected to generate a first brightness compensation information list; or, the selected one of the even line and the odd column
  • the initial brightness compensation information of the pixels at the intersection position generates a first brightness compensation information list; or the initial brightness compensation information of the pixels located at the intersection of the even line and the even column is selected to generate a first brightness compensation information list.
  • the difference of the initial brightness compensation information between adjacent pixels of the display device is not large, so the initial brightness compensation information of the selected pixel and the discarded are ensured by the above selection method.
  • the difference between the initial brightness compensation information of the pixels is small, and the distribution of the selected initial brightness compensation information is relatively uniform, which is advantageous for subsequently generating the target brightness compensation information of all the pixels according to the first brightness compensation information list.
  • the preset unit may be disposed inside the display device or may be independent of the display device.
  • the preset unit is a data processor that is independent of the display device.
  • the regeneration unit is configured to:
  • the initial luminance compensation information of each pixel in the first luminance compensation information list is used as target luminance compensation information of the pixel, and as target luminance compensation information of a pixel adjacent to the pixel.
  • the target luminance compensation information of the pixel is selected as the target luminance compensation information of the pixel adjacent to the right of the pixel, the target luminance compensation information of the pixel adjacent to the lower side, and the target luminance compensation information of the pixel adjacent to the lower right.
  • the obtaining unit is configured to:
  • the first brightness compensation information list is obtained from a volatile memory of the display device. Since the data is read from the volatile memory at a faster speed, it is possible to quickly compensate for each sub-pixel of the input image when the display device displays the picture in real time.
  • the obtaining unit is further configured to:
  • the non-volatile memory and the volatile memory may be disposed in the brightness compensation device, for example, all disposed in a control module of the display device.
  • the volatile memory saves data for a short period of time, by storing the first brightness compensation information in the non-volatile memory, the life of the stored data can be ensured; meanwhile, in the display device During normal operation, the first brightness compensation information list is read from the non-volatile memory into the volatile memory, and the function relationship is obtained from the volatile memory in real time, thereby ensuring the efficiency of real-time compensation. .
  • Embodiments of the present invention also provide a display device including the above-described brightness compensation device.
  • the display device may be: a liquid crystal panel, an electronic paper, an OLED panel, a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator, and the like, or any product or component having a display function.
  • the preset unit is a data processor independent of the display device
  • the brightness compensation device is a control module of the display device.
  • the display device Z101 includes a display panel Z1011 and a control module Z1012 that controls display of the display panel.
  • control module Z1012 includes a control module Z10120, a non-volatile memory Z10121, a volatile memory Z10122, and an interface module.
  • control module Z10120 includes:
  • an acquisition unit configured to: acquire a preset first brightness compensation information list of the display device, and include initial brightness compensation information of a part of pixels of the display device, wherein the partial pixels are dispersed from all pixels of the display device.
  • the obtaining unit reads the first brightness compensation information list from the non-volatile memory into the volatile memory, and further acquires the first brightness compensation information list from the volatile memory in real time;
  • a regenerating unit configured to: regenerate target brightness compensation information of all pixels of the display device according to the first brightness compensation information list.
  • initial luminance compensation information of each pixel in the first luminance compensation information list is used as target luminance compensation information of the pixel, and target luminance compensation information as a pixel adjacent to the pixel; for example, The target luminance compensation information of the pixel is selected as the target luminance compensation information of the pixel adjacent to the right of the pixel, the target luminance compensation information of the pixel adjacent to the lower side, and the target luminance compensation information of the pixel adjacent to the lower right.
  • a compensation unit configured to: target brightness compensation information pairs according to all pixels of the display device Input the image for brightness compensation.
  • the non-volatile memory Z10121 and the volatile memory Z10122 are both used to store a first brightness compensation information list, and the non-volatile memory Z10121 is used to store a first brightness compensation information list sent by the data processor Z102, the volatile memory Z10122 A list of first brightness compensation information for the storage control module to read from the non-volatile memory Z10121.
  • An interface module for receiving an input test pattern during the test phase for receiving an input image when the display is normally displayed. This module uses the technology known to the inventors and will not be described again.
  • the display panel Z1011 may be an AMOLED or a liquid crystal display panel, which is not limited herein.
  • the data processor Z102 is configured to preset a first brightness compensation information list.
  • the initial brightness compensation information of the pixels located at the intersection of the odd line and the odd column is selected to generate the first brightness compensation information. a list; or, selecting initial luminance compensation information of pixels located at intersections of odd rows and even columns to generate a first luminance compensation information list; or selecting initial luminance compensation information for pixels located at intersections of even rows and odd columns a brightness compensation information list; or, the first brightness compensation information list is generated by selecting initial brightness compensation information of the pixels located at the intersection of the even line and the even column.
  • the brightness compensation method, the brightness compensation device, and the display device provided by the embodiment of the present invention, by setting a first brightness compensation information list of the display device in advance, wherein the first brightness compensation information list includes the display device
  • the initial brightness compensation information of the partial pixels stores the first brightness compensation information list, and when the display is normally displayed, acquires a first brightness compensation information list of the display device set in advance, so that the data amount of the first brightness compensation information list is significantly smaller than
  • the initial brightness of all pixels compensates for the amount of data, thereby reducing the storage space and the transmission bandwidth, thereby reducing the hardware cost; and further regenerating the target of all pixels of the display device according to the first brightness compensation information list.
  • the brightness compensation information is used to perform brightness compensation on the input image according to the target brightness compensation information of all the pixels of the display device, thereby achieving high-quality brightness compensation for each pixel.
  • Embodiments of the invention are described with reference to flowchart illustrations and/or block diagrams of exemplary methods, devices (systems), and computer program products. It will be understood that each flow and/or block of the flowchart illustrations and/or FIG.
  • These computer program instructions can be provided to general purpose computers, special purpose computers, embedded A processor of a processor or other programmable data processing device to produce a machine such that instructions executed by a processor of a computer or other programmable data processing device are used to implement a process or processes in a flowchart and/or Or a block diagram of a device in a box or a function specified in a plurality of boxes.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

Abstract

一种显示器件（Z101）的亮度补偿方法、亮度补偿装置及显示器件（Z101）。该显示器件（Z101）的亮度补偿方法，包括：获取预先设置的该显示器件（Z101）的第一亮度补偿信息列表，该第一亮度补偿信息列表包括该显示器件（Z101）的部分像素的初始亮度补偿信息；根据第一亮度补偿信息列表重新生成该显示器件（Z101）的所有像素的目标亮度补偿信息；根据该显示器件（Z101）的所有像素的目标亮度补偿信息对输入图像进行亮度补偿，其中，部分像素分散的取自该显示器件（Z101）的所有像素。提供的亮度补偿方法、亮度补偿装置及显示器件（Z101）能够在提高显示器件（Z101）的亮度均匀性的过程中降低补偿信息的存储数据量，从而降低硬件成本。

Description

显示器件的亮度补偿方法、亮度补偿装置及显示器件 技术领域
本发明的实施例一种显示器件的亮度补偿方法、亮度补偿装置及显示器件。
背景技术
在目前的工艺条件下，有机电致发光二极管(Organic Light Emitting Diode，OLED)显示器件存在空间上和时间上的不均匀性，并且随着显示器件尺寸的变大，此类问题暴露的愈发明显，因此如何解决大尺寸OLED显示器件的显示不均匀性成为量产中的关键技术之一。OLED显示器件的显示不均匀性与制作工艺紧密相关，当整个显示面板的像素之间的阈值电压有较大的差异时，显示器件整体的亮度均匀性变差。而且，有机材料在其自身的寿命期间也存在亮度不断变化的问题。因此需要各种补偿方法来改善显示不均匀性。
补偿方法可以分为内部补偿和外部补偿两大类。内部补偿是指在像素内部利用薄膜晶体管(Thin Film Transistor，TFT)构建的子电路进行补偿的方法；外部补偿是指将TFT或OLED信号抽取到显示面板外部，再通过外部专用集成电路(Application Specific Integrated Circuit，ASIC)进行补偿的方法。通常内部补偿的像素结构和驱动方式都较复杂；而且在大尺寸高分辨率和高刷新频率的显示应用中，内部补偿的方式会导致开口率降低、驱动速度变慢。而外部补偿则具有简单的像素结构，较快的驱动速度和较好的补偿效果。
外部补偿根据数据抽取方法的不同又可以分为光学抽取式和电学抽取式。光学抽取式是指将显示面板点亮后通过图像传感器，例如，光学电荷耦合器件(Charge Coupled Device，CCD)照相的方法将亮度信号抽取出来，电学抽取式是指通过驱动芯片的感应电路将TFT和OLED的电学信号抽取出来。两种方法抽取的信号种类不同，因此数据处理的方式也不同。现在需要在对显示器件进行亮度补偿时，在降低硬件成本的同时实现高质量的亮度补偿效果。
发明内容
本发明实施例提供了一种显示器件的亮度补偿方法、亮度补偿装置及显示器件，用以在提高显示器件的亮度均匀性的过程中降低补偿信息的存储数据量，从而降低硬件成本。
一方面，本发明的实施例提供了一种显示器件的亮度补偿方法，包括：获取预先设置的该显示器件的第一亮度补偿信息列表，该第一亮度补偿信息列表包括该显示器件的部分像素的初始亮度补偿信息；根据所述第一亮度补偿信息列表重新生成该显示器件的所有像素的目标亮度补偿信息；根据该显示器件的所有像素的所述目标亮度补偿信息对输入图像进行亮度补偿，其中，部分像素分散的取自该显示器件的所有像素。
另一方面，本发明的实施例提供了一种显示器件的亮度补偿装置，包括：获取单元，构造为：获取预先设置的该显示器件的第一亮度补偿信息列表，该第一亮度补偿信息列表包括该显示器件的部分像素的初始亮度补偿信息；重新生成单元，构造为：根据所述第一亮度补偿信息列表重新生成该显示器件的所有像素的目标亮度补偿信息；补偿单元，构造为：根据该显示器件的所有像素的目标亮度补偿信息对输入图像进行亮度补偿，其中，部分像素分散的取自该显示器件的所有像素。
再一方面，本发明的实施例还提供了一种显示器件，该显示器件包括上述的亮度补偿装置。
附图说明
为了更清楚地说明本发明实施例的技术方案，下面将对实施例的附图作简单地介绍，显而易见地，下面描述中的附图仅仅涉及本发明的一些实施例，而非对本发明的限制。
图1为示例性外部光学补偿方案的原理示意图；
图2为示例性外部光学补偿的计算方法的示意图；
图3为显示器件的子像素示例性排列方式示意图；
图4为显示器件的像素阵列的示意图；
图5为根据本发明实施例提供的选取部分像素的示例性方法组成的像素阵列的示意图；
图6为本发明实施例提供的示例性重新生成的所有像素的目标亮度补偿信息的列表示意图；
图7为本发明实施例提供的显示器件的亮度补偿装置的结构示意图；以及
图8为本发明实施例提供的包括亮度补偿装置的显示器件结构框图。
具体实施方式
为使本发明实施例的目的、技术方案和优点更加清楚，下面将结合本发明实施例的附图，对本发明实施例的技术方案进行清楚、完整地描述。显然，所描述的实施例是本发明的一部分实施例，而不是全部的实施例。基于所描述的本发明的实施例，本领域普通技术人员在无需创造性劳动的前提下所获得的所有其他实施例，都属于本发明保护的范围。
本发明实施例提供了一种显示器件的亮度补偿方法、亮度补偿装置及显示器件，用以在提高显示器件的亮度均匀性的过程中降低补偿信息的存储数据量，从而降低硬件成本。
图1是示例性外部光学补偿方案的原理示意图，图像传感器通常是CCD照相机。该方法通过将照相所得到的亮度值与理想值做比较，然后选取恰当的灰阶偏移量ΔG采用逐步逼近的方式来进行，如图2所示。这种方法的补偿精度取决于ΔG的大小，补偿范围为(2n-1)ΔG，n为测量次数。针对显示器件的每一像素，都会得到一个这样的补偿信息，并将得到的所有补偿信息存储在显示器件的存储器上，当显示器件正常显示时，从该存储器中读取这些补偿信息，进而对显示器件进行亮度补偿。但是，当需要存储在存储器上的补偿信息的数据量较大，存储器的存储空间以及传输这些补偿信息的带宽都将成为限制条件，而如果增加存储器的存储空间或增加传输这些补偿信息的带宽将会增加生产成本。因此，在对显示器件的亮度补偿过程中，需要降低硬件成本的同时实现高质量的亮度补偿。
下面将结合附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅是一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明实施例保护的范围。
一般的，显示器件包括i行j列像素，则该显示器件包括i×j个像素，假定每个像素包括三个子像素：红色像素R、绿色像素G和蓝色像素B，则该显示器件可以包括i×j×3个子像素。例如，如图3所示，对于一个5行5列的显示器件，该显示器件包括5×15个子像素。在对显示器件的输入图像进行亮度补偿时，是针对显示器件的每一个子像素为单位进行亮度补偿的。
下面对本发明实施例提供的一种显示器件的亮度补偿方法进行说明。
本发明实施例提供的一种显示器件的亮度补偿方法，包括：
获取预先设置的该显示器件的第一亮度补偿信息列表，该第一亮度补偿信息列表包括该显示器件的部分像素的初始亮度补偿信息；
根据所述第一亮度补偿信息列表重新生成该显示器件的所有像素的目标亮度补偿信息；
根据该显示器件的所有像素的所述目标亮度补偿信息对输入图像进行亮度补偿；
其中，部分像素分散的取自该显示器件的所有像素。
示例性地，针对所述显示器件的每个像素，所述初始亮度补偿信息是根据所述像素在测试图案下的测试亮度值和目标亮度值确定的。而且，示例性地，测试亮度值是通过图像传感器获取的，目标亮度值可以是预先设定的也可以是根据测试亮度值获得的平均值。
本发明实施例提供的上述亮度补偿方法，通过预先设置显示器件的第一亮度补偿信息列表，其中该第一亮度补偿信息列表中包括该显示器件的部分像素的初始亮度补偿信息，将第一亮度补偿信息列表存储。在显示器正常显示时，获取预先设置的显示器件的第一亮度补偿信息列表，如此，第一亮度补偿信息列表的数据量明显小于所有像素的初始亮度补偿信息的数据量，从而对存储空间以及传输带宽的需求降低，进而可以降低硬件成本；而进一步又根据所述第一亮度补偿信息列表重新生成该显示器件的所有像素的目标亮度补偿信息，以根据该显示器件的所有像素的目标亮度补偿信息对输入图像进行亮度补偿，从而针对每一像素，均实现了高质量的亮度补偿。
示例性地，预先设置所述第一亮度补偿信息列表，包括：选取所述显示器件的所有像素中的部分像素的初始亮度补偿信息生成所述第一亮度补偿信息列表。
示例性地，选取所述显示器件的所有像素中的部分像素的初始亮度补偿信息生成所述第一亮度补偿信息列表，包括：在显示器件的所有像素中，选取位于奇数行和奇数列交叉位置上的像素的初始亮度补偿信息生成第一亮度补偿信息列表；或，选取位于奇数行和偶数列交叉位置上的像素的初始亮度补偿信息生成第一亮度补偿信息列表；或，选取位于偶数行和奇数列交叉位置上的像素的初始亮度补偿信息生成第一亮度补偿信息列表；或，选取位于偶数行和偶数列交叉位置上的像素的初始亮度补偿信息生成第一亮度补偿信息列表。
在现有的显示器件中，显示器件的相邻的像素之间的初始亮度补偿信息的差异不大，因此通过上述的选择方法，最大限度的保证了选取的初始亮度补偿信息与丢弃的初始亮度补偿信息之间的差异较小，且能够保证选取的初始亮度补偿信息的分布比较均匀，有利于后续根据该第一亮度补偿信息列表重新生成所有像素的目标亮度补偿信息。
当然，上述根据初始亮度补偿信息生成第一亮度补偿信息列表的方法并不限制于上述方法，例如，还可以将初始亮度补偿信息分成多个区域，每一区域选择一个像素的初始亮度补偿信息，将所有的每一区域选择的初始亮度补偿信息生成第一亮度补偿信息列表。
示例性地，上述设置第一亮度补偿信息列表的过程中，选取部分像素的初始亮度补偿信息的过程，可以包括如下方式：
第一种方式，在采集像素的测试亮度值时，仅采集部分像素的测试亮度值，进一步仅针对这些选取的像素，对于每一选取的像素，根据其在测试图案下的测试亮度值和目标亮度值，确定该像素的初始亮度补偿信息，也就是说，上述的选取过程发生在像素的测试亮度值的采集阶段；
第二种方式，采集所有像素的测试亮度值，并针对每一像素，根据该像素在测试图案下的测试亮度值和目标亮度值确定该像素的初始亮度补偿信息；进一步，在组成第一亮度补偿信息列表时，只选择部分像素的初始亮度补偿信息组成第一亮度补偿信息列表，也就是说，上述选取的过程发生在第一亮度补偿信息列表的生成阶段。
示例性地，所述根据所述第一亮度补偿信息列表重新生成该显示器件的所有像素的目标亮度补偿信息，包括：
将所述第一亮度补偿信息列表中的每一像素的初始亮度补偿信息作为该像素的目标亮度补偿信息且作为与该像素相邻的像素的目标亮度补偿信息。例如，选择该像素的目标亮度补偿信息作为该像素右方相邻的像素的目标亮度补偿信息、下方相邻的像素的目标亮度补偿信息、右下方相邻的像素的目标亮度补偿信息。
当然，根据所述第一亮度补偿信息列表重新生成该显示器件的所有像素的目标亮度补偿信息，并不限制于上述的方法，只要能够保证：针对每一像素，重新生成的目标亮度补偿信息与该像素的初始亮度补偿信息差异越小越好。
示例性地，获取所述第一亮度补偿信息列表，包括：
从所述显示器件的易失性存储器中获取所述预先设置的显示器件的第一亮度补偿信息列表。
由于从易失性存储器中读取数据的速度较快，因此在显示器件实时显示画面时，能够快速的对输入图像的每一子像素进行亮度补偿。
示例性地，获取所述第一亮度补偿信息列表，还包括：
在从所述显示器件的易失性存储器中获取所述第一亮度补偿信息列表之前，将所述第一亮度补偿信息列表从所述显示器件的非易失性存储器中读取到易失性存储器中。
由于易失性存储器保存数据的时间较短，因此，通过将第一亮度补偿信息列表保存到非易失性存储器中，能够保证存储数据的寿命；同时，在显示器件正常工作时，将所述第一亮度补偿信息列表从非易失性存储器中读取到易失性存储器中，并实时从易失性存储器中获取所述第一亮度补偿信息列表，从而保证了实时补偿的效率。
下面结合附图对本发明实施例提供的显示器件的亮度补偿方法进行详细说明。
本发明实施例提供的显示器件的亮度补偿方法，需要预先设置第一亮度补偿信息列表。示例性地，设置该第一亮度补偿信息列表的过程，是在显示器件产品出厂之前完成的。
示例性地，首先对预先设置该第一亮度补偿信息列表的过程进行说明。
下面以在采集测试亮度值时采集部分像素的测试亮度值的情况为例进行 说明。示例性地，预先设置第一亮度补偿信息列表，包括：
步骤S401：在显示器件的所有像素中，选定需要采集测试亮度值的像素；
步骤S402：对于选定的每一像素，根据该像素在测试图案下的测试亮度值和目标亮度值确定该像素的初始亮度补偿信息；
步骤S403：将选定的像素的初始亮度补偿信息组成第一亮度补偿信息列表。
示例性地，对于包括R、G、B三个子像素而言的像素，每一像素的初始亮度补偿信息都包括子像素R的初始亮度补偿信息、子像素G的初始亮度补偿信息和子像素B的初始亮度补偿信息。
在步骤S401中，显示器件的像素排布例如如图4所示，其中，Rij为第i行第j列的像素中的子像素R，Gij为第i行第j列的像素中的子像素G，Bij为第i行第j列的像素中的子像素B；在如图4所示的像素阵列中，选取需要采集测试亮度值的像素可以采用如下方式：
选取所有位于奇数行和奇数列交叉位置上的像素；或，选取所有位于奇数行和偶数列交叉位置上的像素；或，选取所有位于偶数行和奇数列交叉位置上的像素；或，选取所有位于偶数行和偶数列交叉位置上的像素。
例如，选取所有位于奇数行和奇数列交叉位置上的像素，组成的列表如图5所示，也就是选择第一行第一列的像素、第三行第一列的像素、第一行第三列的像素、第三行第三列的像素、以及第i行第j列的像素、第i+2行第j列的像素、第i行第j+2列、第i+2行第j+2列的像素，其中i和j取值均为奇数。
在步骤S402中，根据每一像素在测试图案下的测试亮度值和目标亮度值确定该像素的初始亮度补偿信息，可以根据测试灰阶值确定测试图案，将测得的测试亮度值和目标亮度值做比较，然后选取恰当的灰阶偏移量ΔG采用逐步逼近的方式来进行，如图2所示，如此，每一初始亮度补偿信息均为一个灰阶变化量。当然，也可以采用其它的方法确定初始亮度补偿信息，同时，该初始亮度补偿信息并不限定为灰阶变化量或者亮度补偿系数。也就是说，不论采取哪种方法，只要能够确定初始亮度补偿信息即可。
步骤S403：将选定的像素的初始亮度补偿信息生成第一亮度补偿信息列表。
在预先设置第一亮度补偿信息列表之后，将该第一亮度补偿信息列表存储在显示器件的存储器中。示例性地，由于非易失性存储器的数据保存寿命长，易失性存储器读取数据的速度快，因此，将该第一亮度补偿信息列表保存至显示器件的存储器中时，是将该第一亮度补偿信息列表保存到显示器件的非易失性存储器。
对于包括i*j个像素的显示器，如果将所有像素的初始亮度补偿信息都存储，这些补偿信息组成的数据大小为i*j*3*n比特，n代表每个子像素的初始亮度补偿信息的位宽。以3840*2160的分辨率为例，这些补偿信息的数据大小为3840*2160*3*n比特，这些数据的大小决定了非易失性存储器与易失性存储器的容量大小，假定每个子像素的初始亮度补偿信息的位宽为16比特，这些补偿信息的数据大小接近400M比特，意味着非易失性存储器与易失性存储器的容量都要大于400M比特才能满足要求，同时在进行实时补偿时，对控制部件的数据带宽需求也较高。由于显示器件作为消费类电子产品，对成本价格较敏感，在量产中，为降低硬件成本，降低这些补偿信息的数据大小很关键。而本发明实施例提供的显示器件的亮度补偿方法，同样以3840*2160的分辨率为例，第一亮度补偿信息列表的数据大小只有3840*2160*3*n/4，因此大大的降低了对易失性存储器和非易失性存储器的容量需求以及对传输带宽的需求，从而在生产的过程中降低硬件成本。
在显示器件正常工作时，先将第一亮度补偿信息列表从非易失存储器中读取到易失性存储器中，再从易失性存储器中实时地获取第一亮度补偿信息列表，从而能够实时的进行亮度补偿，最终使显示器件的亮度均匀性得到改善。
示例性地，在显示器件正常工作时，对显示器件的亮度补偿的方法，如下：
步骤S701：获取预先设置的该显示器件的第一亮度补偿信息列表，该第一亮度补偿信息列表包括该显示器件的部分像素的初始亮度补偿信息；其中，部分像素分散的取自该显示器件的所有像素；
步骤S702：根据所述第一亮度补偿信息列表重新生成该显示器件的所有像素的目标亮度补偿信息；
步骤S703：根据该显示器件的所有像素的目标亮度补偿信息对输入图像 进行亮度补偿。
示例性地，在步骤S701中，将预先设置的显示器件的第一亮度补偿信息列表从非易失性存储器中读取到易失性存储器中，再实时地从易失性存储器中获取该第一亮度补偿信息列表。
在步骤S702中，示例性地，可以采用如下方式：
将所述第一亮度补偿信息列表中的每一像素的初始亮度补偿信息，作为该像素的目标亮度补偿信息以及作为与该像素相邻的三个像素的目标亮度补偿信息。
以预先设置的第一亮度补偿信息列表中的像素为图5所示的像素为例，在步骤S702中，将第一行第一列的像素的初始亮度补偿信息作为第一行第一列的像素的目标亮度补偿信息，以及作为第二行第一列的像素的目标亮度补偿信息、第一行第二列的像素的目标亮度补偿信息和第二行第二列的像素的目标亮度补偿信息；第i行第j列的像素的初始亮度补偿信息作为第i行第j列的像素的初始亮度补偿信息，以及作为第i+1行第j列的像素的目标亮度补偿信息、第i行第j+1列的像素的目标亮度补偿信息、第i+1行第j+1列的像素的目标亮度补偿信息，其中i和j取值均为奇数，更为直观的，根据所述第一亮度补偿信息列表重新生成该显示器件的所有像素的目标亮度补偿信息的列表如图6所示，其中PRi,j为第i行第j列的像素的子像素R的初始亮度补偿信息，PGi,j为第i行第j列的像素的子像素G的初始亮度补偿信息，PBi,j为第i行第j列的像素的子像素B的初始亮度补偿信息。
在步骤S703中，根据该显示器件的所有像素的目标亮度补偿信息对输入图像进行亮度补偿。该步骤采用发明人已知的技术，详细过程不再赘述。
本发明实施例提供的上述亮度补偿方法，通过预先设置显示器件的第一亮度补偿信息列表，其中该第一亮度补偿信息列表中包括该显示器件的部分像素的初始亮度补偿信息，将第一亮度补偿信息列表存储，在显示器正常显示时，获取预先设置的显示器件的第一亮度补偿信息列表，如此，第一亮度补偿信息列表的数据量明显小于所有像素的初始亮度补偿信息的数据量，从而对存储空间以及传输带宽的需求降低，进而可以降低硬件成本；而进一步又根据所述第一亮度补偿信息列表重新生成该显示器件的所有像素的目标亮度补偿信息，以根据该显示器件的所有像素的目标亮度补偿信息对输入图像 进行亮度补偿，从而针对每一像素，均实现了高质量的亮度补偿。
以上对本发明实施例提供的显示器件的亮度补偿方法进行了详细说明，下面结合附图对本发明实施例提供的显示器件的亮度补偿装置进行说明。
如图7所示，本发明实施例提供的一种亮度补偿装置，包括：
获取单元Z91，构造为：获取预先设置的该显示器件的第一亮度补偿信息列表，该第一亮度补偿信息列表包括该显示器件的部分像素的初始亮度补偿信息，而且，部分像素分散的取自该显示器件的所有像素；
重新生成单元Z92，构造为：根据所述第一亮度补偿信息列表重新生成该显示器件的所有像素的目标亮度补偿信息；
补偿单元Z93，构造为：根据该显示器件的所有像素的目标亮度补偿信息对输入图像进行亮度补偿。
其中，针对显示器件的每一像素，初始亮度补偿信息是预先根据该像素在测试图案下的测试亮度值和目标亮度值确定的。
示例性地，本发明实施例提供的上述亮度补偿装置可以是显示器件的控制模块。其中，获取单元、重新生成单元以及补偿单元均可以例如由处理器来实现。
本发明实施例提供的上述亮度补偿装置，通过预先设置显示器件的第一亮度补偿信息列表，其中该第一亮度补偿信息列表中包括该显示器件的所有像素中的部分像素的初始亮度补偿信息，将第一亮度补偿信息列表存储，在显示器正常显示时，获取预先设置的显示器件的第一亮度补偿信息列表，如此，第一亮度补偿信息列表的数据量明显小于所有像素的初始亮度补偿信息的数据量，从而对存储空间以及传输带宽的需求降低，进而可以降低硬件成本；而进一步又根据所述第一亮度补偿信息列表重新生成该显示器件的所有像素的目标亮度补偿信息，以根据该显示器件的所有像素的目标亮度补偿信息对输入图像进行亮度补偿，从而针对每一像素，均实现了高质量的亮度补偿。
示例性地，所述亮度补偿装置还包括：
预设单元，构造为：在显示器件的像素阵列中，选取所述显示器件的所有像素中的部分像素的初始亮度补充信息生成所述第一亮度补偿信息列表。
示例性地，预设单元构造为：选取位于奇数行和奇数列交叉位置上的像 素的初始亮度补偿信息生成第一亮度补偿信息列表；或，选取位于奇数行和偶数列交叉位置上的像素的初始亮度补偿信息生成第一亮度补偿信息列表；或，选取位于偶数行和奇数列交叉位置上的像素的初始亮度补偿信息生成第一亮度补偿信息列表；或，选取位于偶数行和偶数列交叉位置上的像素的初始亮度补偿信息生成第一亮度补偿信息列表。
在现有的显示器件中，显示器件的相邻的像素之间的初始亮度补偿信息的差异不大，因此通过上述的选择方法，最大限度的保证了选取的像素的初始亮度补偿信息与丢弃的像素的初始亮度补偿信息之间的差异较小，且能够保证选取的初始亮度补偿信息的分布比较均匀，有利于后续根据该第一亮度补偿信息列表重新生成所有像素的目标亮度补偿信息。
需要说明的是，该预设单元可以设置在显示器件内部，也可以独立于显示器件之外。示例性地，该预设单元为独立于显示器件之外的数据处理器。
示例性地，所述重新生成单元构造为：
将所述第一亮度补偿信息列表中的每一像素的初始亮度补偿信息，作为该像素的目标亮度补偿信息，以及作为与该像素相邻的像素的目标亮度补偿信息。例如，选择该像素的目标亮度补偿信息作为该像素右方相邻的像素的目标亮度补偿信息、下方相邻的像素的目标亮度补偿信息、右下方相邻的像素的目标亮度补偿信息。
示例性地，所述获取单元构造为：
从所述显示器件的易失性存储器中获取所述第一亮度补偿信息列表。由于从易失性存储器中读取数据的速度较快，因此在显示器件实时显示画面时，能够快速的对输入图像的每一子像素进行亮度补偿。
示例性地，所述获取单元还构造为：
在从所述显示器件的易失性存储器中获取所述第一亮度补偿信息列表之前，将所述第一亮度补偿信息列表从所述显示器件的非易失性存储器中读取到所述易失性存储器中。
其中，非易失性存储器和易失性存储器均可以设置在该亮度补偿装置中，例如均设置在显示器件的控制模组中。
由于易失性存储器保存数据的时间较短，因此，通过将第一亮度补偿信息保存到非易失性存储器中，能够保证存储数据的寿命；同时，在显示器件 正常工作时，将所述第一亮度补偿信息列表从非易失性存储器中读取到易失性存储器中，并实时从易失性存储器中获取所述函数关系，从而保证了实时补偿的效率。
本发明实施例还提供了一种显示器件，该显示器件包括上述的亮度补偿装置。所述显示器件可以为：液晶面板、电子纸、OLED面板、手机、平板电脑、电视机、显示器、笔记本电脑、数码相框、导航仪等任何具有显示功能的产品或部件。
下面结合附图对本发明实施例提供的亮度补偿装置进行说明。
下面以预设单元为独立于显示器件之外的数据处理器为例，同时以该亮度补偿装置为显示器件的控制模块为例进行说明。
如图8所示，在对显示器件Z101进行亮度补偿时，需要通过数据处理器Z102生成测试图案，通过图像传感器Z103采集在测试图案下的像素的测试亮度值。
其中，显示器件Z101包括显示面板Z1011和控制显示面板显示的控制模组Z1012。
示例性地，控制模组Z1012包括：控制模块Z10120、非易失性存储器Z10121、易失性存储器Z10122以及接口模块。
示例性地，控制模块Z10120包括：
获取单元，构造为：获取预先设置的该显示器件的第一亮度补偿信息列表，其中包括该显示器件的部分像素的初始亮度补偿信息，该部分像素分散的取自该显示器件的所有像素。示例性地，获取单元将第一亮度补偿信息列表从非易失性存储器中读取到易失性存储器中，并进一步从易失性存储器实时中获取第一亮度补偿信息列表；
重新生成单元，构造为：根据所述第一亮度补偿信息列表重新生成该显示器件的所有像素的目标亮度补偿信息。示例性地，将所述第一亮度补偿信息列表中的每一像素的初始亮度补偿信息，作为该像素的目标亮度补偿信息，以及作为与该像素相邻的像素的目标亮度补偿信息；例如，选择该像素的目标亮度补偿信息作为该像素右方相邻的像素的目标亮度补偿信息、下方相邻的像素的目标亮度补偿信息、右下方相邻的像素的目标亮度补偿信息。
补偿单元，构造为：根据该显示器件的所有像素的目标亮度补偿信息对 输入图像进行亮度补偿。
非易失性存储器Z10121和易失性存储器Z10122均用于存储第一亮度补偿信息列表，非易失性存储器Z10121用于存储数据处理器Z102发送的第一亮度补偿信息列表，易失性存储器Z10122用于存储控制模块从非易失性存储器Z10121中读取的第一亮度补偿信息列表。
接口模块，在测试阶段用于接收输入的测试图案，在显示器正常显示时用于接收输入图像。该模块采用发明人已知的技术，不再赘述。
显示面板Z1011可以是AMOLED，也可以是液晶显示面板，在此不作限定。
数据处理器Z102用于预先设置第一亮度补偿信息列表，示例性地，在显示器件的像素阵列中，选取位于奇数行和奇数列交叉位置上的像素的初始亮度补偿信息生成第一亮度补偿信息列表；或，选取位于奇数行和偶数列交叉位置上的像素的初始亮度补偿信息生成第一亮度补偿信息列表；或，选取位于偶数行和奇数列交叉位置上的像素的初始亮度补偿信息生成第一亮度补偿信息列表；或，选取位于偶数行和偶数列交叉位置上的像素的初始亮度补偿信息生成第一亮度补偿信息列表。
综上所述，本发明实施例提供的上述亮度补偿方法、亮度补偿装置及显示器件，通过预先设置显示器件的第一亮度补偿信息列表，其中该第一亮度补偿信息列表中包括该显示器件的部分像素的初始亮度补偿信息，将第一亮度补偿信息列表存储，在显示器正常显示时，获取预先设置的显示器件的第一亮度补偿信息列表，如此，第一亮度补偿信息列表的数据量明显小于所有像素的初始亮度补偿信息的数据量，从而对存储空间以及传输带宽的需求降低，进而可以降低硬件成本；而进一步又根据所述第一亮度补偿信息列表重新生成该显示器件的所有像素的目标亮度补偿信息，以根据该显示器件的所有像素的目标亮度补偿信息对输入图像进行亮度补偿，从而针对每一像素，均实现了高质量的亮度补偿。
本发明实施例是参照示例性方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌 入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
显然，本领域的技术人员可以对本发明进行各种改动和变型而不脱离本发明的精神和范围。这样，倘若本发明的这些修改和变型属于本发明权利要求及其等同技术的范围之内，则本发明也意图包含这些改动和变型在内。
本申请要求于2014年5月30日递交的中国专利申请第201410240582.0号的优先权，在此全文引用上述中国专利申请公开的内容以作为本申请的一部分。

Claims (17)

  1. 一种显示器件的亮度补偿方法，包括：
    获取预先设置的该显示器件的第一亮度补偿信息列表，该第一亮度补偿信息列表包括该显示器件的部分像素的初始亮度补偿信息；
    根据所述第一亮度补偿信息列表重新生成该显示器件的所有像素的目标亮度补偿信息；
    根据该显示器件的所有像素的所述目标亮度补偿信息对输入图像进行亮度补偿；
    其中，部分像素分散的取自该显示器件的所有像素。
  2. 根据权利要求1所述的亮度补偿方法，其中针对所述显示器件的每个像素，所述初始亮度补偿信息是根据所述像素在测试图案下的测试亮度值和目标亮度值确定的。
  3. 根据权利要求1或2所述的亮度补偿方法，其中预先设置所述第一亮度补偿信息列表，包括：
    选取所述显示器件的所有像素中的部分像素的初始亮度补偿信息生成所述第一亮度补偿信息列表。
  4. 根据权利要求3所述的亮度补偿方法，其中选取所述显示器件的所有像素中的部分像素的初始亮度补偿信息生成所述第一亮度补偿信息列表，包括：
    在显示器件的所述所有像素中，选取位于奇数行和奇数列交叉位置上的像素的初始亮度补偿信息生成第一亮度补偿信息列表；或，选取位于奇数行和偶数列交叉位置上的像素的初始亮度补偿信息生成第一亮度补偿信息列表；或，选取位于偶数行和奇数列交叉位置上的像素的初始亮度补偿信息生成第一亮度补偿信息列表；或，选取位于偶数行和偶数列交叉位置上的像素的初始亮度补偿信息生成第一亮度补偿信息列表。
  5. 根据权利要求1-4中任一项所述的亮度补偿方法，其中所述根据所述第一亮度补偿信息列表重新生成该显示器件的所有像素的目标亮度补偿信息，包括：
    将所述第一亮度补偿信息列表中的所述每个像素的初始亮度补偿信息作 为该像素的目标亮度补偿信息且作为与该像素相邻的像素的目标亮度补偿信息。
  6. 根据权利要求1-4中任一项所述的亮度补偿方法，其中获取所述第一亮度补偿信息列表，包括：
    从所述显示器件的易失性存储器中获取所述第一亮度补偿信息列表。
  7. 根据权利要求6所述的亮度补偿方法，其中获取所述第一亮度补偿信息列表，还包括：
    在从所述显示器件的易失性存储器中获取所述第一亮度补偿信息列表之前，将所述第一亮度补偿信息列表从所述显示器件的非易失性存储器中读取到所述易失性存储器中。
  8. 根据权利要求3所述的亮度补偿方法，其中选取所述显示器件的所有像素中的部分像素的初始亮度补偿信息生成所述第一亮度补偿信息列表，包括：
    采集所述部分像素的每个测试亮度值，根据所述像素的测试亮度值和目标亮度值确定所述部分像素的每个的初始亮度补偿信息而生成第一亮度补偿信息列表。
  9. 根据权利要求3所述的亮度补偿方法，其中选取所述显示器件的所有像素中的部分像素的初始亮度补偿信息生成所述第一亮度补偿信息列表，包括：
    采集所述显示器件的所有像素的测试亮度值，根据所述所有像素的测试亮度值和目标亮度值确定所述所有像素的每个的初始亮度补偿信息，选择部分像素的所述初始亮度补偿信息生成第一亮度补偿信息列表。
  10. 一种显示器件的亮度补偿装置，包括：
    获取单元，构造为：获取预先设置的该显示器件的第一亮度补偿信息列表，该第一亮度补偿信息列表包括该显示器件的部分像素的初始亮度补偿信息；
    重新生成单元，构造为：根据所述第一亮度补偿信息列表重新生成该显示器件的所有像素的目标亮度补偿信息；
    补偿单元，构造为：根据该显示器件的所有像素的目标亮度补偿信息对输入图像进行亮度补偿；
    其中，部分像素分散的取自该显示器件的所有像素。
  11. 根据权利要求10所述的亮度补偿装置，其中针对显示器件的所有像素的每个，所述初始亮度补偿信息是预先根据该像素在测试图案下的测试亮度值和目标亮度值确定的。
  12. 根据权利要求10或11所述的亮度补偿装置，还包括：
    预设单元，构造为：选取所述显示器件的所有像素中的部分像素的初始亮度补偿信息生成所述第一亮度补偿信息列表。
  13. 根据权利要求10或11所述的亮度补偿装置，其中所述预设单元，构造为：在显示器件的所述所有像素中，选取位于奇数行和奇数列交叉位置上的像素的初始亮度补偿信息生成第一亮度补偿信息列表；或，选取位于奇数行和偶数列交叉位置上的像素的初始亮度补偿信息生成第一亮度补偿信息列表；或，选取位于偶数行和奇数列交叉位置上的像素的初始亮度补偿信息生成第一亮度补偿信息列表；或，选取位于偶数行和偶数列交叉位置上的像素的初始亮度补偿信息生成第一亮度补偿信息列表。
  14. 根据权利要求10或11所述的亮度补偿装置，其中所述重新生成单元构造为：
    将所述第一亮度补偿信息列表中的每一像素的初始亮度补偿信息作为该像素的目标亮度补偿信息以及作为与该像素相邻的像素的目标亮度补偿信息。
  15. 根据权利要求10或11所述的亮度补偿装置，其中所述获取单元构造为：
    从所述显示器件的易失性存储器中获取所述第一亮度补偿信息列表。
  16. 根据权利要求15所述的亮度补偿装置，其中所述获取单元还构造为：
    在从所述显示器件的易失性存储器中获取所述第一亮度补偿信息列表之前，将所述第一亮度补偿信息列表从所述显示器件的非易失性存储器中读取到所述易失性存储器中。
  17. 一种显示器件，包括权利要求10-16中任一项所述的亮度补偿装置。
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