WO2022160398A1 - 显示装置、显示装置的感光元件的白平衡调整方法 - Google Patents

显示装置、显示装置的感光元件的白平衡调整方法 Download PDF

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Publication number
WO2022160398A1
WO2022160398A1 PCT/CN2021/077703 CN2021077703W WO2022160398A1 WO 2022160398 A1 WO2022160398 A1 WO 2022160398A1 CN 2021077703 W CN2021077703 W CN 2021077703W WO 2022160398 A1 WO2022160398 A1 WO 2022160398A1
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Prior art keywords
parameter
white balance
value
display device
deviation
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PCT/CN2021/077703
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English (en)
French (fr)
Inventor
曾涛
王洋
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武汉华星光电半导体显示技术有限公司
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Application filed by 武汉华星光电半导体显示技术有限公司 filed Critical 武汉华星光电半导体显示技术有限公司
Priority to US17/275,524 priority Critical patent/US11778300B2/en
Publication of WO2022160398A1 publication Critical patent/WO2022160398A1/zh

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/57—Mechanical or electrical details of cameras or camera modules specially adapted for being embedded in other devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/64—Circuits for processing colour signals
    • H04N9/73—Colour balance circuits, e.g. white balance circuits or colour temperature control
    • 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
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/02—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the way in which colour is displayed
    • G09G5/04—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the way in which colour is displayed using circuits for interfacing with colour displays
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/80—Camera processing pipelines; Components thereof
    • H04N23/84—Camera processing pipelines; Components thereof for processing colour signals
    • H04N23/88—Camera processing pipelines; Components thereof for processing colour signals for colour balance, e.g. white-balance circuits or colour temperature control
    • 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
    • G09G2320/0666—Adjustment of display parameters for control of colour parameters, e.g. colour temperature

Definitions

  • the present application relates to the field of display technology, and in particular, to a display device and a method for adjusting the white balance of a photosensitive element of the display device.
  • the voice of the full screen is rising.
  • the imaging of the technology that sets the photosensitive element under the screen (such as the under-screen camera) is affected by the transmittance and diffraction of the OLED screen, and the imaging quality is not high, and there are problems such as blurring and low color consistency.
  • the ratio of the red light intensity component to the green light intensity component (R/G) and the ratio of the blue light intensity component to the green light intensity component (B/G) stored in the photosensitive chip of the photosensitive element will be caused by individual differences when leaving the factory. R/G and B/G are inconsistent with the original values.
  • the photosensitive element After the photosensitive element is assembled into a finished product, due to the influence of optical devices such as filters, the difference in R/G and B/G ratios between individuals will further increase.
  • the photosensitive element is used in the scene under the screen. Due to the influence of the transmittance difference between the OLED screens, the overall difference is further increased. At present, it is not possible to achieve good white balance color consistency in the debugging of mobile phone terminals.
  • the present application provides a display device and a method for adjusting the white balance of a photosensitive element of the display device, which can solve the problem of poor white balance color consistency of the photosensitive element caused by arranging the photosensitive element under the screen in the prior art.
  • An embodiment of the present application provides a display device, including a display panel, a photosensitive element disposed on one side of the display panel, and a drive IC electrically connected to the display panel and the photosensitive element;
  • the driving IC is configured to, according to the deviation between the first white balance imaging parameter of the photosensitive element in the display device and the preset second white balance imaging parameter of the photosensitive element in the typical display device, perform an operation on the display device.
  • the image data collected by the photosensitive element is used for white balance compensation;
  • the first white balance imaging parameter is the color parameter of the preset image collected by the photosensitive element in the display device under the preset light source
  • the typical display device is one sample display device among a preset number of sample display devices selected from a whole batch of display devices, and the first white balance imaging parameter of the typical display device is within all the first white balance imaging parameters of the preset number of sample display devices. within a preset threshold of the average value of the white balance imaging parameters;
  • the second white balance imaging parameter is a color parameter of a preset image collected by a photosensitive element in a typical display device under a preset light source.
  • the driver IC is further configured to perform white balance compensation on the image collected by the photosensitive element according to the following formula:
  • White balance compensation value second white balance imaging parameter/first white balance imaging parameter/reference deviation between the first white balance imaging parameter and the second white balance imaging parameter.
  • the color parameters include a red parameter, a green parameter, and a blue parameter
  • the deviation between the first white balance imaging parameter and the second white balance imaging parameter includes: between the red parameters The first deviation, the second deviation between the blue parameters and the third deviation between the green parameters, the reference deviation is the smallest value among the first deviation, the second deviation and the third deviation one.
  • the first white balance imaging parameter includes: the ratio value of the red parameter to the green parameter of the preset image collected by the photosensitive element in the display device under the preset light source, the blue The ratio of the parameter to the green parameter, and the ratio of the green parameter to the green parameter;
  • the second white balance imaging parameter includes: the ratio value of the red parameter and the green parameter, the ratio value of the blue parameter and the green parameter, and the green parameter of the preset image collected by the photosensitive element in the typical display device under the preset light source the proportional value to the green parameter;
  • the green parameter and the ratio value of the green parameter are the first ratio value, the second ratio value and the third ratio value, respectively,
  • the green parameter and the ratio value of the green parameter are a fourth ratio value, a fifth ratio value and a sixth ratio value, respectively.
  • the driver IC is further configured to calculate the deviation between the first white balance imaging parameter and the second white balance imaging parameter according to the following formula:
  • the first deviation the fourth proportional value/the first proportional value
  • Second deviation fifth proportional value/second proportional value
  • the value of the third deviation is 1,
  • the driving IC is further configured to use 1 as the reference deviation when at least one of the first deviation and the second deviation is greater than or equal to 1; or,
  • the driving IC is further configured to use the smallest one of the first deviation and the second deviation as a reference deviation when both the first deviation and the second deviation are less than 1.
  • the driving IC is further configured to perform white balance compensation on the image collected by the photosensitive element according to the red light intensity compensation value, the blue light intensity compensation value and the green light intensity compensation value, wherein, The driver IC is used to calculate the red light intensity compensation value, the blue light intensity compensation value and the green light intensity compensation value according to the following formula:
  • Red light intensity compensation value fourth scale value/first scale value/reference deviation
  • Blue light intensity compensation value fifth scale value/second scale value/reference deviation
  • Green light intensity compensation value sixth scale value/third scale value/reference deviation.
  • a storage module is further included, the storage module is electrically connected to the driving IC, and is used for storing preset second white balance imaging parameters of the photosensitive element in a typical display device and The first white balance imaging parameter of the photosensitive element in the display device.
  • the value range of the preset threshold is ⁇ 3% of the average value of all the first white balance imaging parameters of the preset number of sample display devices.
  • the typical display device is any one of the two or more sample display devices.
  • the present application also provides a white balance adjustment method for a photosensitive element of a display device
  • the display device includes a display panel, a photosensitive element disposed on one side of the display panel, and an electrical connection with the display panel and the photosensitive element
  • the driver IC wherein, the white balance adjustment method of the photosensitive element includes the following steps:
  • the driver IC determines the photosensitive element in the display device.
  • the collected image data is subjected to white balance compensation;
  • the first white balance imaging parameter is the color parameter of the preset image collected by the photosensitive element in the display device under the preset light source
  • the typical display device is a sample display device with a preset number of sample display devices selected from a whole batch of display devices, and the average value of all the first white balance imaging parameters of the preset number of sample display devices is within a preset threshold value;
  • the second white balance imaging parameter is a color parameter of a preset image collected by a photosensitive element in a typical display device under a preset light source.
  • the color parameters include a red parameter, a green parameter, and a blue parameter
  • the deviation between the first white balance imaging parameter and the second white balance imaging parameter includes: between the red parameters The first deviation, the second deviation between the blue parameters and the third deviation between the green parameters, the reference deviation is the smallest value among the first deviation, the second deviation and the third deviation one.
  • the first white balance imaging parameter includes: the ratio value of the red parameter to the green parameter of the preset image collected by the photosensitive element in the display device under the preset light source, the blue The ratio of the parameter to the green parameter, and the ratio of the green parameter to the green parameter;
  • the second white balance imaging parameter includes: the ratio value of the red parameter and the green parameter, the ratio value of the blue parameter and the green parameter, and the green parameter of the preset image collected by the photosensitive element in the typical display device under the preset light source the proportional value to the green parameter;
  • the green parameter and the ratio value of the green parameter are the first ratio value, the second ratio value and the third ratio value, respectively,
  • the green parameter and the ratio value of the green parameter are a fourth ratio value, a fifth ratio value and a sixth ratio value, respectively.
  • the following steps are further included:
  • the driver IC calculates the deviation between the first white balance imaging parameter and the second white balance imaging parameter according to the following formula:
  • the first deviation the fourth proportional value/the first proportional value
  • Second deviation fifth proportional value/second proportional value
  • the value of the third deviation is 1, before the drive IC performs white balance compensation on the image data collected by the photosensitive element in the display device, and before the drive IC performs white balance compensation on the image data collected by the photosensitive element in the display device
  • the driving IC calculates the first deviation, the second deviation and the third deviation, it also includes the following steps:
  • the driving IC adopts 1 as the reference deviation; or, when both the first deviation and the second deviation are less than 1 , the driving IC adopts the smallest one of the first deviation and the second deviation as the reference deviation.
  • the step of the driving IC performing white balance compensation on the image data collected by the photosensitive element in the display device includes:
  • the driver IC calculates the red light intensity compensation value, the blue light intensity compensation value and the green light intensity compensation value, and performs white balance compensation on the image collected by the photosensitive element according to the red light intensity compensation value, the blue light intensity compensation value and the green light intensity compensation value .
  • the driver IC calculates the red light intensity compensation value, the blue light intensity compensation value and the green light intensity compensation value according to the following formula:
  • Red light intensity compensation value fourth scale value/first scale value/reference deviation
  • Blue light intensity compensation value fifth scale value/second scale value/reference deviation
  • Green light intensity compensation value sixth scale value/third scale value/reference deviation.
  • the value range of the preset threshold is ⁇ 3% of the average value of all the first white balance imaging parameters of the preset number of sample display devices.
  • the typical display device is any one of the two or more sample display devices.
  • the beneficial effects of the present application are: in the present application, after assembling the photosensitive element and the display panel, the driving IC according to the first white balance imaging parameter of the photosensitive element in the display device, and the preset second white balance of the photosensitive element in the typical display device.
  • the deviation between the imaging parameters is balanced, and the white balance compensation is performed on the image data collected by the photosensitive element in the display device.
  • the first white balance imaging parameter is a color parameter of a preset image collected by a photosensitive element in the display device under a preset light source
  • a typical display device is a sample display device with a preset number selected from a whole batch of display devices, A sample display device with an average value of all the first white balance imaging parameters within a preset threshold with a preset number of sample display devices
  • the second white balance imaging parameter is a preset image collected by a photosensitive element in a typical display device under a preset light source color parameters.
  • FIG. 1 is a schematic structural diagram of an under-screen camera display device in the prior art
  • FIG. 2 is a schematic structural diagram of a display device provided by an embodiment of the present application.
  • FIG. 3 is a flowchart of a method for adjusting the white balance of a photosensitive element of a display device according to an embodiment of the present application
  • FIG. 4 is a flowchart of a method for product control after white balance adjustment of a photosensitive element of a display device provided by an embodiment of the present application;
  • Figure 5 is a comparison diagram of the photosensitive effect of the photosensitive element before and after the white balance adjustment of the photosensitive element under the screen.
  • the structure of arranging the camera below the screen can be shown in Figure 1.
  • the light entering the camera needs to pass through the OLED screen.
  • the film layers through which the light enters the camera from top to bottom are the cover layer 11, the polarizing layer 12, the touch layer 13, the encapsulation layer 14, the OLED display layer 15, and finally reach the camera 16.
  • Each of the cover layer 11 , the polarizing layer 12 , the touch layer 13 , the encapsulation layer 14 and the OLED display layer 15 includes a complex structure of 1 to 20 layers, such as various organic layers, inorganic layers and OCA glue layer etc. Therefore, the light intensity that actually reaches the camera after being absorbed and reflected by multiple layers is greatly reduced.
  • the embodiments of the present application provide a display device and a method for adjusting the white balance of a photosensitive element of the display device, which can solve the above-mentioned technical problems, and refer to the following embodiments for details. It should be noted that the description order of the following embodiments is not intended to limit the preferred order of the embodiments.
  • the executive body of the embodiment of the present application may be an electronic device such as a smart phone or a tablet computer.
  • the display device includes: a display panel 100 , a photosensitive element 200 disposed on one side of the display panel 100 , and a driving IC 300 electrically connected to the display panel 100 and the photosensitive element 200 .
  • the display panel 100 includes, but is not limited to, an organic light emitting diode display panel, a liquid crystal display panel, a quantum dot display panel, and the like.
  • the photosensitive element 200 includes but is not limited to a camera module and the like, and the photosensitive element 200 can collect image data through the display panel 100 .
  • the display panel 100 includes a photosensitive area 101 , and the photosensitive element 200 is assembled under the display panel 100 and corresponds to a position of the photosensitive area 101 .
  • the position of the driving IC 300 is not limited, and can be bound to the display panel 100 .
  • the driving IC 300 is configured to, according to the deviation between the first white balance imaging parameter of the photosensitive element 200 in the display device and the preset second white balance imaging parameter of the photosensitive element 200 in the typical display device, perform the correction for the said display device.
  • the image data collected by the photosensitive element 200 in the display device is subjected to white balance compensation.
  • the first white balance imaging parameter is a color parameter of a preset image collected by the photosensitive element 200 in the display device under a preset light source.
  • the typical display device is one sample display device among a preset number of sample display devices selected from a whole batch of display devices, and the first white balance imaging parameter of the typical display device is within all the first white balance imaging parameters of the preset number of sample display devices.
  • the second white balance imaging parameter is a color parameter of a preset image collected by the photosensitive element 200 in a typical display device under a preset light source.
  • each display device in the whole batch of display devices includes a display panel 100 , a photosensitive element 200 and a driving IC 300 .
  • the whole batch of display devices may be display devices using the same batch of display panels 100 , or display devices using the same batch of photosensitive elements 200 , or using the same batch of display panels 100 and the same batch
  • the display device of the next photosensitive element 200 or a display device in which the display panel 100 and the photosensitive element 200 are assembled in the same batch.
  • the preset number may be determined according to the number of display devices in the entire batch of display devices, for example, the preset number may be 1 of the number of display devices in the entire batch of display devices /2, 1/3, 1/4, 1/5, 1/6, 1/7, 1/8, etc. Moreover, the preset number of sample display devices is randomly selected from the entire batch of display devices.
  • the value range of the preset threshold value is ⁇ 3% of the average value of all the first white balance imaging parameters of the preset number of sample display devices, but not limited to this, and the specific value range can be based on the actual process. Depends.
  • the typical display device may be: any one of the two or more sample display devices.
  • a display device that is closest to the average value of the first white balance imaging parameter can be selected as a typical display device.
  • the present application can perform white balance compensation on the photosensitive elements of a whole batch of display devices through the above methods. Since the white balance compensation is performed after the photosensitive elements are assembled to the display panel, it solves the problem of disposing the photosensitive elements on the screen in the prior art. Under the influence of the transmittance difference between individual screens, the problem of poor white balance color consistency of the photosensitive element is caused.
  • the driving IC 300 in this embodiment performs white balance compensation on the image data collected by the photosensitive element 200 in the display device.
  • the white balance compensation is performed under a white light source, and the white light can enter the photosensitive element 200 through the display panel 100 .
  • the display device further includes a storage module (not shown), the storage module is electrically connected to the driving IC 300 for storing the preset second white balance imaging parameters of the photosensitive element 200 in the typical display device and the second white balance imaging parameters in the display device.
  • the first white balance imaging parameter of the photosensitive element 200 is electrically connected to the driving IC 300 for storing the preset second white balance imaging parameters of the photosensitive element 200 in the typical display device and the second white balance imaging parameters in the display device.
  • the first white balance imaging parameter includes: the ratio value of the red parameter and the green parameter (R/G value) of the preset image collected by the photosensitive element 200 in the display device under the white light source, the ratio of the blue parameter and the green parameter The ratio value (B/G value), and the ratio value of the green parameter to the green parameter (G/G value), namely unit R/G, unit B/G, and unit G/G.
  • the second white balance imaging parameters include: R/G value, B/G value, and G/G value of a preset image collected by the photosensitive element 200 in a typical display device under a white light source, namely typical R/G, typical B/G, and typical G/G.
  • the storage module stores unit R/G, unit B/G, unit G/G, typical R/G, typical B/G, and typical G/G.
  • the ratio of the red parameter to the green parameter, the ratio of the blue parameter to the green parameter, and the ratio of the green parameter to the green parameter of the preset image collected by the photosensitive element 200 in the display device under the preset light source are respectively the first A ratio value, a second ratio value and a third ratio value, the ratio value of the red parameter and the green parameter, the ratio value of the blue parameter and the green parameter of the preset image collected by the photosensitive element in the typical display device under the preset light source , and the ratio of the green parameter to the green parameter is a fourth ratio, a fifth ratio, and a sixth ratio, respectively.
  • the photosensitive element 200 in the display device may collect color parameters of a preset image under white light according to the first white balance imaging parameter.
  • the color parameters include a red parameter (R), a green parameter (G) and a blue parameter (B).
  • the photosensitive element 200 can collect the red parameter, green parameter and blue parameter of the preset image under the white light source, so as to obtain the corresponding image, and the “parameter” referred to here can be the light intensity component and the like that can characterize the color.
  • the parameter for example, the red parameter may be the red light intensity component.
  • the R/G value is the ratio of the red parameter to the green parameter of the preset image collected by the photosensitive element 200; the B/G value is the ratio of the blue parameter to the green parameter of the preset image collected by the photosensitive element 200; G/G The value is the ratio of the green parameter to the green parameter of the preset image collected by the photosensitive element 200 , that is, the G/G value is 1.
  • the driver IC 300 is also used to perform white balance compensation on the image captured by the photosensitive element 200 according to the following formula:
  • White balance compensation value second white balance imaging parameter/first white balance imaging parameter/reference deviation between the first white balance imaging parameter and the second white balance imaging parameter.
  • the deviation between the first white balance imaging parameter and the second white balance imaging parameter includes: a first deviation (R1) between red parameters, a second deviation (B1) between blue parameters, and a difference between green parameters
  • the third deviation ( G1 ) of , the base deviation (Base deviation is the smallest value among the first deviation, the second deviation and the third deviation.
  • driver IC 300 is also used to calculate the deviation between the first white balance imaging parameter and the second white balance imaging parameter according to the following formula:
  • the first deviation the fourth proportional value/the first proportional value
  • Second deviation fifth proportional value/second proportional value
  • the value of the third deviation is 1, and the driving IC 300 is further configured to use 1 as the reference deviation when at least one of the first deviation and the second deviation is greater than or equal to 1; or, The driving IC 300 is further configured to use the smallest one of the first deviation and the second deviation as a reference deviation when both the first deviation and the second deviation are less than 1.
  • the above calculation process of the driver IC 300 can be performed by reading the following codes and parameters (including the first white balance parameter and the second white balance parameter) stored in the storage module:
  • R1 (typical R/G)/(unit R/G);
  • B1 (typical B/G)/(unit B/G);
  • the driving IC 300 can obtain the reference deviation between the first white balance imaging parameter and the second white balance imaging parameter by executing the above code.
  • the driving IC 300 when the driving IC 300 performs white balance compensation on the image collected by the photosensitive element 200, the driving IC 300 can perform the compensation on the photosensitive light according to the calculated red light intensity compensation value, blue light intensity compensation value and green light intensity compensation value.
  • the image captured by the element 200 is subjected to white balance compensation.
  • the driver IC 300 is used to calculate the red light intensity compensation value, the blue light intensity compensation value and the green light intensity compensation value according to the following formula:
  • Red light intensity compensation value fourth scale value/first scale value/reference deviation
  • Blue light intensity compensation value fifth scale value/second scale value/reference deviation
  • Green light intensity compensation value sixth scale value/third scale value/reference deviation.
  • the above calculation process of the driver IC 300 can be executed by reading the following codes stored in the storage module:
  • R_GAIN 0x100* (typical R/G)/(unit R/G)/ Base deviation;
  • B_GAIN 0x100*(typical B/G)/(unit B/G)/ Base deviation;
  • G_GAIN 0x100*(typical G/G)/(unit G/G)/ Base deviation.
  • 0x100 is the preset ratio, which is expressed in hexadecimal here, that is, the preset ratio is 1 times.
  • the driver IC 300 can obtain the red light intensity compensation value (R_GAIN), the blue light intensity compensation value (B_GAIN) and the green light intensity compensation value (G_GAIN) by executing the above codes.
  • the driving IC 300 can compensate the red parameter, blue parameter and green parameter of the preset image collected by the photosensitive element 200 through the red light intensity compensation value, the blue light intensity compensation value and the green light intensity compensation value, that is, this embodiment
  • White balance compensation is performed by adjusting the relationship between R, G, and B, so that the color parameters collected by the photosensitive element 200 of the display device are close to the preset image collected by the photosensitive element 200 in a typical display device under a preset light source color parameters, so as to realize the white balance compensation of the photosensitive element of the display device.
  • the present application also provides a method for adjusting the white balance of a photosensitive element of the above-mentioned display device.
  • the display device includes a display panel 100 , a photosensitive element 200 disposed on one side of the display panel 100 , and a display panel 100 and a photosensitive element 200 .
  • the white balance adjustment method of the photosensitive element 200 includes the following steps:
  • the driver IC determines the photosensitive element in the display device.
  • the collected image data is subjected to white balance compensation.
  • the first white balance imaging parameter is the color parameter of the preset image collected by the photosensitive element in the display device under the preset light source
  • the typical display device is a sample display device with a preset number of sample display devices selected from a whole batch of display devices, and the average value of all the first white balance imaging parameters of the preset number of sample display devices is within a preset threshold value;
  • the second white balance imaging parameter is a color parameter of a preset image collected by a photosensitive element in a typical display device under a preset light source.
  • the value range of the preset threshold is ⁇ 3% of the average value of all the first white balance imaging parameters of the preset number of sample display devices, but not limited to this.
  • the specific value range It can be determined according to the actual process.
  • the typical display device when there are more than two sample display devices with the average value of all the first white balance imaging parameters of the preset number of sample display devices within the preset threshold, the typical display device may be: any one of the two or more sample display devices.
  • the present application can perform white balance compensation on the photosensitive elements of a whole batch of display devices through the above method. Since the white balance compensation is performed after the photosensitive elements are assembled to the display panel, it solves the problem of disposing the photosensitive elements on the screen in the prior art. Under the influence of the transmittance difference between individual screens, the problem of poor white balance color consistency of the photosensitive element is caused.
  • the white balance adjustment method of the photosensitive element of the display device in this embodiment will be described in detail below.
  • the white balance adjustment is performed under a white light source, and the white light can enter the photosensitive element through the display panel.
  • the photosensitive element in the display device can collect color parameters of a preset image under white light according to the first white balance imaging parameter.
  • the color parameters include a red parameter (R), a green parameter (G) and a blue parameter (B).
  • the white balance adjustment method of the photosensitive element of the display device includes the following steps:
  • Step S1 the driving IC calculates the deviation between the first white balance imaging parameter and the second white balance imaging parameter.
  • the deviation between the first white balance imaging parameter and the second white balance imaging parameter includes: a first deviation between red parameters, a second deviation between blue parameters, and a third deviation between green parameters.
  • the driver IC calculates the deviation between the first white balance imaging parameter and the second white balance imaging parameter according to the following formula:
  • the first deviation the fourth proportional value/the first proportional value
  • Second deviation fifth proportional value/second proportional value
  • the first white balance imaging parameter includes: the ratio value of the red parameter and the green parameter (R/G value) of the preset image collected by the photosensitive element in the display device under the preset light source, the ratio of the blue parameter and the green parameter The ratio value (B/G value), and the ratio value of the green parameter to the green parameter (G/G value);
  • the second white balance imaging parameter includes: a pre-image collected by a photosensitive element in a typical display device under a preset light source; Set the R/G value, B/G value, and G/G value of the image.
  • the ratio of the red parameter to the green parameter, the ratio of the blue parameter to the green parameter, and the ratio of the green parameter to the green parameter of the preset image collected by the photosensitive element 200 in the display device under the preset light source are respectively the first A ratio value, a second ratio value and a third ratio value, the ratio value of the red parameter and the green parameter, the ratio value of the blue parameter and the green parameter of the preset image collected by the photosensitive element in the typical display device under the preset light source , and the ratio of the green parameter to the green parameter is a fourth ratio, a fifth ratio, and a sixth ratio, respectively.
  • the photosensitive element 200 can collect the red, green and blue parameters of the preset image under a white light source to obtain a corresponding image.
  • the “parameter” referred to here may be a parameter that can characterize color, such as light components.
  • the R/G value is the ratio of the red parameter to the green parameter of the preset image collected by the photosensitive element 200; the B/G value is the ratio of the blue parameter to the green parameter of the preset image collected by the photosensitive element 200; G/G The value is the ratio of the green parameter to the green parameter of the preset image collected by the photosensitive element 200 , that is, the G/G value is 1.
  • the above formula can be used to calculate the deviation between the color parameters of the photosensitive element in a typical display device and the color parameter of the preset image collected by the photosensitive element in the display device to be tested under a preset light source.
  • Step S2 the driving IC calculates the reference deviation between the first white balance imaging parameter and the second white balance imaging parameter according to the deviation between the first white balance imaging parameter and the second white balance imaging parameter.
  • the value of the third deviation is 1, and when at least one of the first deviation and the second deviation is greater than or equal to 1, the driver IC uses 1 as the reference deviation; or, when the When both the first deviation and the second deviation are less than 1, the driving IC uses the smallest one of the first deviation and the second deviation as the reference deviation. That is, the reference deviation is the smallest value among the first deviation, the second deviation, and the third deviation.
  • Step S3 the driving IC performs white balance compensation on the image data collected by the photosensitive element.
  • the step of performing white balance compensation on the image data collected by the photosensitive element in the display device by the driving IC includes:
  • the driver IC calculates the red light intensity compensation value, the blue light intensity compensation value and the green light intensity compensation value, and performs white balance compensation on the image collected by the photosensitive element according to the red light intensity compensation value, the blue light intensity compensation value and the green light intensity compensation value .
  • the driver IC calculates the red light intensity compensation value, the blue light intensity compensation value and the green light intensity compensation value according to the following formula:
  • Red light intensity compensation value fourth scale value/first scale value/reference deviation
  • Blue light intensity compensation value fifth scale value/second scale value/reference deviation
  • Green light intensity compensation value sixth scale value/third scale value/reference deviation.
  • the driving IC can compensate the red parameter, blue parameter and green parameter of the preset image collected by the photosensitive element by using the red light intensity compensation value, the blue light intensity compensation value and the green light intensity compensation value. Adjust the relationship between R, G, and B to perform white balance compensation, so that the color parameters collected by the photosensitive element of the display device are close to the color of the preset image collected by the photosensitive element 200 in a typical display device under a preset light source parameters, so as to realize the white balance compensation of the photosensitive element of the display device.
  • the product after the white balance adjustment can also be controlled.
  • the specific control method includes the following steps:
  • Step S11 the driving IC calculates the first deviation, the second deviation and the third deviation between the first white balance imaging parameter after white balance compensation and the second white balance imaging parameter.
  • Step S12 if the first deviation, the second deviation and the third deviation are all within the preset threshold, the process ends; otherwise, the first white balance imaging parameter after white balance compensation is used as the new first white balance imaging parameter, and the process is performed again. Perform white balance compensation on the image data collected by the photosensitive element in the display device until the end.
  • the value range of the preset threshold value is ⁇ 3% of the average value of all the first white balance imaging parameters of the preset number of sample display devices, but not limited to this, and the specific value range can be based on the actual process.
  • the first deviation, the second deviation and the third deviation are all within the preset thresholds, it means that the white balance color consistency of the photosensitive element of the display device is good, and the display device is a qualified product. Otherwise, the color consistency of the white balance of the photosensitive element of the display device is not good, and it is necessary to perform white balance compensation again on the image data collected by the photosensitive element in the display device.
  • the left side of the dotted line in the figure is the photosensitive value distribution diagram of the photosensitive element before the white balance adjustment
  • the right side of the dotted line is the photosensitive element photosensitive value distribution diagram after the white balance adjustment.
  • the R/G value and B/G value of the preset image collected by the photosensitive elements in the same batch of display devices under the preset light source have a large fluctuation range, the numerical distribution is discrete, and the under-screen photosensitive Component white balance color consistency is poor.
  • the fluctuation range of the R/G value and the B/G value of the preset image collected by the photosensitive elements in the same batch of display devices under the preset light source is very small, the numerical distribution is convergent, and the screen is sensitive to light. Component white balance color consistency is good.
  • the driver IC is based on the deviation between the first white balance imaging parameter of the photosensitive element in the display device and the preset second white balance imaging parameter of the photosensitive element in the typical display device. , and perform white balance compensation on the image data collected by the photosensitive element in the display device.
  • the first white balance imaging parameter is a color parameter of a preset image collected by a photosensitive element in the display device under a preset light source
  • a typical display device is a sample display device with a preset number selected from a whole batch of display devices, A sample display device with an average value of all the first white balance imaging parameters within a preset threshold with a preset number of sample display devices
  • the second white balance imaging parameter is a preset image collected by a photosensitive element in a typical display device under a preset light source color parameters.
  • a display device and a white balance adjustment method for a photosensitive element of a display device provided in the embodiments of the present application have been described above in detail.
  • the principles and implementations of the present application are described with specific examples. The description is only used to help understand the method of the present application and its core idea; meanwhile, for those skilled in the art, according to the idea of the present application, there will be changes in the specific embodiment and the scope of application. In summary, The contents of this specification should not be construed as limiting the application.

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Abstract

本申请提供一种显示装置、显示装置的感光元件的白平衡调整方法，显示装置包括显示面板、感光元件和驱动IC。显示装置中的感光元件在预设光源下采集的预设图像的颜色参数为第一白平衡成像参数，典型显示装置中的感光元件在预设光源下采集的预设图像的颜色参数为第二白平衡成像参数。驱动IC用于根据第一白平衡成像参数与第二白平衡成像参数之间的偏差对显示装置中感光元件采集到的图像数据进行白平衡补偿。

Description

显示装置、显示装置的感光元件的白平衡调整方法 技术领域
本申请涉及显示技术领域，具体涉及一种显示装置、显示装置的感光元件的白平衡调整方法。
 背景技术
随着日趋成熟的屏下显示技术，全面屏的呼声高涨。目前将感光元件设置在屏下的技术（如屏下摄像头）的成像受制于OLED屏幕透过率以及衍射的影响，成像质量不高，存在模糊、色彩一致性不高等问题。一般感光元件感光芯片中存储的红光强度分量与绿光强度分量的比值（R/G）以及蓝光强度分量与绿光强度分量的比值（B/G）在出厂时会因个体差异使得实际的R/G和B/G与原始值不一致，在组装成感光元件成品后，由于受滤光片等光学器件的影响，进一步会增大个体间R/G，B/G比值的差异性，在感光元件应用在屏下的场景中，由于受OLED屏个体间透过率差异的影响，其整体差异性进一步加大，目前在手机终端调试普遍性无法取得较好的白平衡色彩一致性。
因此，需要全新的解决方案来应对因将感光元件设置在屏下的技术导致的感光元件白平衡色彩一致性问题。
 技术问题
本申请提供一种显示装置、显示装置的感光元件的白平衡调整方法，能够解决现有技术中因将感光元件设置在屏下导致的感光元件白平衡色彩一致性较差的问题。
 技术解决方案
为解决上述问题，本申请提供的技术方案如下：
本申请实施例提供一种显示装置，包括显示面板、设置在显示面板一侧的感光元件、以及与显示面板和感光元件电连接的驱动IC；
所述驱动IC，用于根据所述显示装置中感光元件的第一白平衡成像参数，与预设的典型显示装置中感光元件的第二白平衡成像参数之间的偏差，对所述显示装置中感光元件采集到的图像数据进行白平衡补偿；
其中，所述第一白平衡成像参数为显示装置中的感光元件在预设光源下采集的预设图像的颜色参数；
所述典型显示装置为从整批的显示装置里挑选的预设数量样本显示装置中的一个样本显示装置，所述典型显示装置的第一白平衡成像参数在预设数量样本显示装置的所有第一白平衡成像参数平均值的预设阈值内；
所述第二白平衡成像参数为典型显示装置中的感光元件在预设光源下采集的预设图像的颜色参数。
可选的，在本申请的一些实施例中，所述驱动IC，还用于根据如下公式对感光元件采集的图像进行白平衡补偿，
白平衡补偿值=第二白平衡成像参数/第一白平衡成像参数/第一白平衡成像参数与第二白平衡成像参数之间的基准偏差。
可选的，在本申请的一些实施例中，颜色参数中包括红色参数、绿色参数和蓝色参数，第一白平衡成像参数与第二白平衡成像参数之间的偏差包括：红色参数之间的第一偏差、蓝色参数之间的第二偏差和绿色参数之间的第三偏差，所述基准偏差为所述第一偏差、所述第二偏差和所述第三偏差中数值最小的一者。
可选的，在本申请的一些实施例中，所述第一白平衡成像参数包括：显示装置中感光元件在预设光源下采集的预设图像的红色参数与绿色参数的比例值、蓝色参数与绿色参数的比例值、以及绿色参数与绿色参数的比例值；
所述第二白平衡成像参数包括：典型显示装置中的感光元件在预设光源下采集的预设图像的红色参数与绿色参数的比例值、蓝色参数与绿色参数的比例值、以及绿色参数与绿色参数的比例值；
其中，所述显示装置中所述感光元件在所述预设光源下采集的所述预设图像的所述红色参数与绿色参数的比例值、所述蓝色参数与绿色参数的比例值、以及所述绿色参数与绿色参数的比例值分别为第一比例值、第二比例值及第三比例值，
所述典型显示装置中的所述感光元件在所述预设光源下采集的所述预设图像的所述红色参数与绿色参数的比例值、所述蓝色参数与绿色参数的比例值、以及所述绿色参数与绿色参数的比例值分别为第四比例值、第五比例值及第六比例值。
可选的，在本申请的一些实施例中，所述驱动IC还用于根据如下公式对第一白平衡成像参数与第二白平衡成像参数之间的偏差进行计算：
第一偏差=第四比例值/第一比例值；
第二偏差=第五比例值/第二比例值；
第三偏差=第六比例值/第三比例值。
可选的，在本申请的一些实施例中，所述第三偏差的数值为1，
所述驱动IC还用于当所述第一偏差和所述第二偏差中的至少一者大于或等于1时，采用1作为基准偏差；或者，
所述驱动IC还用于当所述第一偏差和所述第二偏差均小于1时，采用所述第一偏差和所述第二偏差中最小的一者作为基准偏差。
可选的，在本申请的一些实施例中，所述驱动IC还用于根据红光强度补偿值、蓝光强度补偿值以及绿光强度补偿值对感光元件采集的图像进行白平衡补偿，其中，所述驱动IC用于根据如下公式对红光强度补偿值、蓝光强度补偿值以及绿光强度补偿值进行计算：
红光强度补偿值=第四比例值/第一比例值/基准偏差；
蓝光强度补偿值=第五比例值/第二比例值/基准偏差；
绿光强度补偿值=第六比例值/第三比例值/基准偏差。
可选的，在本申请的一些实施例中，还包括储存模块，所述储存模块与所述驱动IC电连接，用于储存预设的典型显示装置中感光元件的第二白平衡成像参数以及显示装置中感光元件的第一白平衡成像参数。
可选的，在本申请的一些实施例中，所述预设阈值的取值范围为所述预设数量样本显示装置所有第一白平衡成像参数平均值的±3%。
可选的，在本申请的一些实施例中，在预设数量样本显示装置中，当与预设数量样本显示装置所有第一白平衡成像参数平均值在预设阈值内的样本显示装置为两个以上时，所述典型显示装置为两个以上的所述样本显示装置中的任意一个。
为解决上述技术问题，本申请还提供一种显示装置的感光元件的白平衡调整方法，所述显示装置包括显示面板、设置在显示面板一侧的感光元件、以及与显示面板和感光元件电连接的驱动IC；其中，感光元件的白平衡调整方法包括以下步骤：
所述驱动IC根据所述显示装置中感光元件的第一白平衡成像参数，与预设的典型显示装置中感光元件的第二白平衡成像参数之间的偏差，对所述显示装置中感光元件采集到的图像数据进行白平衡补偿；
其中，所述第一白平衡成像参数为显示装置中的感光元件在预设光源下采集的预设图像的颜色参数；
所述典型显示装置为从整批的显示装置里挑选的预设数量样本显示装置中，与预设数量样本显示装置所有第一白平衡成像参数平均值在预设阈值内的样本显示装置；
所述第二白平衡成像参数为典型显示装置中的感光元件在预设光源下采集的预设图像的颜色参数。
可选的，在本申请的一些实施例中，所述驱动IC根据如下公式对感光元件采集的图像进行白平衡补偿，白平衡补偿值=第二白平衡成像参数/第一白平衡成像参数/第一白平衡成像参数与第二白平衡成像参数之间的基准偏差。
可选的，在本申请的一些实施例中，颜色参数中包括红色参数、绿色参数和蓝色参数，第一白平衡成像参数与第二白平衡成像参数之间的偏差包括：红色参数之间的第一偏差、蓝色参数之间的第二偏差和绿色参数之间的第三偏差，所述基准偏差为所述第一偏差、所述第二偏差和所述第三偏差中数值最小的一者。
可选的，在本申请的一些实施例中，所述第一白平衡成像参数包括：显示装置中感光元件在预设光源下采集的预设图像的红色参数与绿色参数的比例值、蓝色参数与绿色参数的比例值、以及绿色参数与绿色参数的比例值；
所述第二白平衡成像参数包括：典型显示装置中的感光元件在预设光源下采集的预设图像的红色参数与绿色参数的比例值、蓝色参数与绿色参数的比例值、以及绿色参数与绿色参数的比例值；
其中，所述显示装置中所述感光元件在所述预设光源下采集的所述预设图像的所述红色参数与绿色参数的比例值、所述蓝色参数与绿色参数的比例值、以及所述绿色参数与绿色参数的比例值分别为第一比例值、第二比例值及第三比例值，
所述典型显示装置中的所述感光元件在所述预设光源下采集的所述预设图像的所述红色参数与绿色参数的比例值、所述蓝色参数与绿色参数的比例值、以及所述绿色参数与绿色参数的比例值分别为第四比例值、第五比例值及第六比例值。
可选的，在本申请的一些实施例中，所述驱动IC对所述显示装置中感光元件采集到的图像数据进行白平衡补偿之前，还包括以下步骤：
所述驱动IC根据如下公式对第一白平衡成像参数与第二白平衡成像参数之间的偏差进行计算：
第一偏差=第四比例值/第一比例值；
第二偏差=第五比例值/第二比例值；
第三偏差=第六比例值/第三比例值。
可选的，在本申请的一些实施例中，所述第三偏差的数值为1，在所述驱动IC对所述显示装置中感光元件采集到的图像数据进行白平衡补偿之前，并且在所述驱动IC计算出第一偏差、第二偏差和第三偏差之后，还包括以下步骤：
当所述第一偏差和所述第二偏差中的至少一者大于或等于1时，所述驱动IC采用1作为基准偏差；或者，当所述第一偏差和所述第二偏差均小于1时，所述驱动IC采用所述第一偏差和所述第二偏差中最小的一者作为基准偏差。
可选的，在本申请的一些实施例中，所述驱动IC对所述显示装置中感光元件采集到的图像数据进行白平衡补偿的步骤包括：
所述驱动IC计算红光强度补偿值、蓝光强度补偿值以及绿光强度补偿值，并根据红光强度补偿值、蓝光强度补偿值以及绿光强度补偿值对感光元件采集的图像进行白平衡补偿。
可选的，在本申请的一些实施例中，所述驱动IC根据如下公式对红光强度补偿值、蓝光强度补偿值以及绿光强度补偿值进行计算：
红光强度补偿值=第四比例值/第一比例值/基准偏差；
蓝光强度补偿值=第五比例值/第二比例值/基准偏差；
绿光强度补偿值=第六比例值/第三比例值/基准偏差。
可选的，在本申请的一些实施例中，所述预设阈值的取值范围为所述预设数量样本显示装置所有第一白平衡成像参数平均值的±3%。
可选的，在本申请的一些实施例中，在预设数量样本显示装置中，当与预设数量样本显示装置所有第一白平衡成像参数平均值在预设阈值内的样本显示装置为两个以上时，所述典型显示装置为两个以上的所述样本显示装置中的任意一个。
 有益效果
本申请的有益效果为：本申请是通过将感光元件与显示面板组装后，驱动IC根据显示装置中感光元件的第一白平衡成像参数，与预设的典型显示装置中感光元件的第二白平衡成像参数之间的偏差，对显示装置中感光元件采集到的图像数据进行白平衡补偿。其中，第一白平衡成像参数为显示装置中的感光元件在预设光源下采集的预设图像的颜色参数；典型显示装置为从整批的显示装置里挑选的预设数量样本显示装置中，与预设数量样本显示装置所有第一白平衡成像参数平均值在预设阈值内的样本显示装置；第二白平衡成像参数为典型显示装置中的感光元件在预设光源下采集的预设图像的颜色参数。本申请通过以上方式能够对整批组装在显示装置中的感光元件进行白平衡补偿，从而解决现有技术中因将感光元件设置在屏下导致的感光元件白平衡色彩一致性较差的问题。
 附图说明
为了更清楚地说明本申请实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是现有技术中屏下摄像头显示装置的结构示意图；
图2是本申请实施例提供的显示装置的结构示意图；
图3是本申请实施例提供的显示装置的感光元件的白平衡调整方法流程图；
图4是本申请实施例提供的显示装置的感光元件在白平衡调整之后进行产品管控的方法流程图；
图5是屏下感光元件白平衡调控前和调控后的感光元件感光效果对比图。
 本发明的实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。此外，应当理解的是，此处所描述的具体实施方式仅用于说明和解释本申请，并不用于限制本申请。在本申请中，在未作相反说明的情况下，使用的方位词如“上”和“下”通常是指装置实际使用或工作状态下的上和下，具体为附图中的图面方向；而“内”和“外”则是针对装置的轮廓而言的。
在进入全面屏时代后，随着全面屏、瀑布屏甚至环绕屏的流行，屏幕在显示装置或电子设备表面的占比越来越大，将摄像头置于屏幕下方将大大增强显示装置或电子设备在外形上的竞争力。
将摄像头设置在屏幕下方的结构可以如图1所示。光线进入摄像头需经过OLED屏，例如，光线进入摄像头经过的膜层从上至下为盖板层11，偏光层12，触控层13，封装层14，OLED显示层15，最后到达摄像头16上。其中盖板层11、偏光层12、触控层13、封装层14、OLED显示层15中的每一层又包含1层-20层的复杂结构，如各种有机层、无机层和OCA胶层等。因此，光线经过多层的吸收和反射后真正到达摄像头的光强被大大降低。实际上摄像头感应到的数值会出现很大的背景噪音，即摄像头感应光线强度的准确度较低。同时，在摄像头应用在屏下的场景中，由于受OLED屏个体间透过率差异的影响，其整体差异性进一步加大，从而导致批量显示装置中的屏下摄像头白平衡色彩一致性较差的问题。
本申请实施例提供一种显示装置、显示装置的感光元件的白平衡调整方法，能够解决上述技术问题，具体参考以下实施例。需说明的是，以下实施例的描述顺序不作为对实施例优选顺序的限定。
可以理解的是，本申请实施例的执行主体可以是诸如智能手机或平板电脑等的电子设备。
如图2所示，为本申请提供的显示装置的结构示意图。该显示装置包括：显示面板100、设置在显示面板100一侧的感光元件200、以及与显示面板100和感光元件200电连接的驱动IC300。其中，所述显示面板100包括但不限于有机发光二极管显示面板、液晶显示面板以及量子点显示面板等。所述感光元件200包括但不限于摄像头模组等，所述感光元件200可透过所述显示面板100采集图像数据。
其中，所述显示面板100包括感光区域101，所述感光元件200组装至所述显示面板100之下且对应所述感光区域101的位置。所述驱动IC300的位置不做限定，可以绑定于显示面板100上。所述驱动IC300，用于根据所述显示装置中感光元件200的第一白平衡成像参数，与预设的典型显示装置中感光元件200的第二白平衡成像参数之间的偏差，对所述显示装置中感光元件200采集到的图像数据进行白平衡补偿。
其中，所述第一白平衡成像参数为显示装置中的感光元件200在预设光源下采集的预设图像的颜色参数。
所述典型显示装置为从整批的显示装置里挑选的预设数量样本显示装置中的一个样本显示装置，所述典型显示装置的第一白平衡成像参数在预设数量样本显示装置的所有第一白平衡成像参数平均值的预设阈值内。
所述第二白平衡成像参数为典型显示装置中的感光元件200在预设光源下采集的预设图像的颜色参数。
在本实施例中，所述整批的显示装置中的每一个显示装置均包括显示面板100、感光元件200以及驱动IC300。其中，所述整批的显示装置可以为使用同一批次的显示面板100的显示装置，或者是使用同一批次的感光元件200的显示装置，或者是使用同一批次的显示面板100和同一批次的感光元件200的显示装置，或者是将显示面板100与感光元件200同一批次组装的显示装置。
在所述预设数量样本显示装置中，该预设数量可根据整批的显示装置中显示装置的数量而定，例如，该预设数量可以为整批的显示装置中的显示装置数量的1/2、1/3、1/4、1/5、1/6、1/7、1/8等。并且，该预设数量样本显示装置为整批的显示装置中随机抽取的。
其中，所述预设阈值的取值范围为所述预设数量样本显示装置所有第一白平衡成像参数平均值的±3%，但不以此为限，具体的取值范围可根据实际制程而定。
其中，在预设数量样本显示装置中，当与预设数量样本显示装置所有第一白平衡成像参数平均值在预设阈值内的样本显示装置为两个以上时，所述典型显示装置可以为该两个以上的样本显示装置中的任意一个。优选可以选择与第一白平衡成像参数平均值最接近的显示装置来作为典型显示装置。
本申请通过以上方式能够对整批的显示装置的感光元件进行白平衡补偿，由于该白平衡补偿是在感光元件组装至显示面板后进行的，从而解决现有技术中因将感光元件设置在屏下，受屏幕个体间透过率差异的影响而导致的感光元件白平衡色彩一致性较差的问题。
以下详细说明本实施例中所述驱动IC300对所述显示装置中感光元件200采集到的图像数据进行白平衡补偿。
在本实施例中，该白平衡补偿在白光光源下进行，白光可透过显示面板100进入感光元件200中。所述显示装置还包括储存模块（未图示），所述储存模块与所述驱动IC300电连接，用于储存预设的典型显示装置中感光元件200的第二白平衡成像参数以及显示装置中感光元件200的第一白平衡成像参数。其中，所述第一白平衡成像参数包括：显示装置中感光元件200在白色光源下采集的预设图像的红色参数与绿色参数的比例值(R/G值)、蓝色参数与绿色参数的比例值(B/G值)、以及绿色参数与绿色参数的比例值(G/G值) ，即unit R/G、unit B/G、以及unit G/G。所述第二白平衡成像参数包括：典型显示装置中的感光元件200在白色光源下采集的预设图像的R/G值、B/G值、以及G/G值，即typical R/G、typical B/G、以及typical G/G。具体地，所述储存模块中存储有unit R/G、unit B/G、unit G/G、typical R/G、typical B/G、以及typical G/G。
其中，显示装置中感光元件200在预设光源下采集的预设图像的红色参数与绿色参数的比例值、蓝色参数与绿色参数的比例值、以及绿色参数与绿色参数的比例值分别为第一比例值、第二比例值及第三比例值，典型显示装置中的感光元件在预设光源下采集的预设图像的红色参数与绿色参数的比例值、蓝色参数与绿色参数的比例值、以及绿色参数与绿色参数的比例值分别为第四比例值、第五比例值及第六比例值。
所述显示装置中的所述感光元件200可根据第一白平衡成像参数采集白光下预设图像的颜色参数。所述颜色参数中包括红色参数（R）、绿色参数（G）和蓝色参数（B）。
其中，所述感光元件200在白色光源下可以采集预设图像的红色参数、绿色参数及蓝色参数，从而获得相应的图像，这里所指的“参数”可以是光强度分量等能表征颜色的参数，例如，红色参数可以为红光强度分量。其中，R/G值为感光元件200采集的预设图像的红色参数与绿色参数的比值；B/G值为感光元件200采集的预设图像的蓝色参数与绿色参数的比值；G/G值为感光元件200采集的预设图像的绿色参数与绿色参数的比值，即，G/G值为1。在本实施例中，以感光元件200采集的预设图像的绿色参数为定值，通过计算红色参数与绿色参数的比值以及蓝色参数与绿色参数的比值，以R、G、B之间的比例形式进行白平衡补偿。
具体地，所述驱动IC300还用于根据如下公式对感光元件200采集的图像进行白平衡补偿：
白平衡补偿值=第二白平衡成像参数/第一白平衡成像参数/第一白平衡成像参数与第二白平衡成像参数之间的基准偏差。
其中，第一白平衡成像参数与第二白平衡成像参数之间的偏差包括：红色参数之间的第一偏差（R1）、蓝色参数之间的第二偏差（B1）和绿色参数之间的第三偏差（G1），所述基准偏差（Base deviation为所述第一偏差、所述第二偏差和所述第三偏差中数值最小的一者。
进一步的，所述驱动IC300还用于根据如下公式对第一白平衡成像参数与第二白平衡成像参数之间的偏差进行计算：
第一偏差=第四比例值/第一比例值；
第二偏差=第五比例值/第二比例值；
第三偏差=第六比例值/第三比例值。
其中，所述第三偏差的数值为1，所述驱动IC300还用于当所述第一偏差和所述第二偏差中的至少一者大于或等于1时，采用1作为基准偏差；或者，所述驱动IC300还用于当所述第一偏差和所述第二偏差均小于1时，采用所述第一偏差和所述第二偏差中最小的一者作为基准偏差。
所述驱动IC300的上述计算过程可通过读取所述储存模块中存储的以下代码和参数（包括第一白平衡参数和第二白平衡参数）来执行：
R1 = (typical R/G)/(unit R/G);
B1= (typical B/G)/(unit B/G);
G1 =(typical G/G)/(unit G/G) =1;
If (R1 <1 || B1 <1)
{
    If (R1 < B1)
          Base_deviation = R1;
    Else
          Base_deviation = B1;
}
Else
Base_deviation = G1。
所述驱动IC300通过执行以上代码便可获得第一白平衡成像参数与第二白平衡成像参数之间的基准偏差。
在本实施例中，所述驱动IC300在对感光元件200采集的图像进行白平衡补偿时，所述驱动IC300可根据计算的红光强度补偿值、蓝光强度补偿值以及绿光强度补偿值对感光元件200采集的图像进行白平衡补偿。
具体地，所述驱动IC300用于根据如下公式对红光强度补偿值、蓝光强度补偿值以及绿光强度补偿值进行计算：
红光强度补偿值=第四比例值/第一比例值/基准偏差；
蓝光强度补偿值=第五比例值/第二比例值/基准偏差；
绿光强度补偿值=第六比例值/第三比例值/基准偏差。
其中，所述驱动IC300的上述计算过程可通过读取所述储存模块中存储的以下代码来执行：
R_GAIN = 0x100* (typical R/G)/(unit R/G)/ Base deviation;
B_GAIN = 0x100*(typical B/G)/(unit B/G)/ Base deviation;
G_GAIN = 0x100*(typical G/G)/(unit G/G)/ Base deviation。
式中，“0x100”为预设比例，此处以十六进制表示，即预设比例为1倍。所述驱动IC300通过执行以上代码便可获得红光强度补偿值（R_GAIN）、蓝光强度补偿值（B_GAIN）以及绿光强度补偿值（G_GAIN）。
其中，所述驱动IC300通过红光强度补偿值、蓝光强度补偿值以及绿光强度补偿值可以对感光元件200采集的预设图像的红色参数、蓝色参数以及绿色参数进行补偿，即本实施例通过调节R、G、B之间的关系进行白平衡补偿，使得所述显示装置的感光元件200采集的颜色参数趋近于典型显示装置中的感光元件200在预设光源下采集的预设图像的颜色参数，从而实现所述显示装置的感光元件的白平衡补偿。
本申请还提供了上述显示装置的感光元件的白平衡调整方法，结合图2所示，所述显示装置包括显示面板100、设置在显示面板100一侧的感光元件200、以及与显示面板100和感光元件200电连接的驱动IC300。其中，所述感光元件200的白平衡调整方法包括以下步骤：
所述驱动IC根据所述显示装置中感光元件的第一白平衡成像参数，与预设的典型显示装置中感光元件的第二白平衡成像参数之间的偏差，对所述显示装置中感光元件采集到的图像数据进行白平衡补偿。
其中，所述第一白平衡成像参数为显示装置中的感光元件在预设光源下采集的预设图像的颜色参数；
所述典型显示装置为从整批的显示装置里挑选的预设数量样本显示装置中，与预设数量样本显示装置所有第一白平衡成像参数平均值在预设阈值内的样本显示装置；
所述第二白平衡成像参数为典型显示装置中的感光元件在预设光源下采集的预设图像的颜色参数。
在本实施例中，所述预设阈值的取值范围为所述预设数量样本显示装置所有第一白平衡成像参数平均值的±3%，但不以此为限，具体的取值范围可根据实际制程而定。
其中，在预设数量样本显示装置中，当与预设数量样本显示装置所有第一白平衡成像参数平均值在预设阈值内的样本显示装置为两个以上时，所述典型显示装置可以为该两个以上的样本显示装置中的任意一个。
本申请通过上述方法能够对整批的显示装置的感光元件进行白平衡补偿，由于该白平衡补偿是在感光元件组装至显示面板后进行的，从而解决现有技术中因将感光元件设置在屏下，受屏幕个体间透过率差异的影响而导致的感光元件白平衡色彩一致性较差的问题。
以下详细说明本实施例中显示装置的感光元件的白平衡调整方法。
在本实施例中，该白平衡调整是在白色光源下进行的，白光可透过显示面板进入感光元件中。所述显示装置中的所述感光元件可根据第一白平衡成像参数采集白光下预设图像的颜色参数。所述颜色参数中包括红色参数（R）、绿色参数（G）和蓝色参数（B）。
如图3所示，所述显示装置的感光元件的白平衡调整方法包括以下步骤：
步骤S1，驱动IC计算第一白平衡成像参数与第二白平衡成像参数之间的偏差。
其中，第一白平衡成像参数与第二白平衡成像参数之间的偏差包括：红色参数之间的第一偏差、蓝色参数之间的第二偏差和绿色参数之间的第三偏差。
具体地，所述驱动IC根据如下公式对第一白平衡成像参数与第二白平衡成像参数之间的偏差进行计算：
第一偏差=第四比例值/第一比例值；
第二偏差=第五比例值/第二比例值；
第三偏差=第六比例值/第三比例值。
其中，所述第一白平衡成像参数包括：显示装置中感光元件在预设光源下采集的预设图像的红色参数与绿色参数的比例值(R/G值)、蓝色参数与绿色参数的比例值(B/G值)、以及绿色参数与绿色参数的比例值(G/G值)；所述第二白平衡成像参数包括：典型显示装置中的感光元件在预设光源下采集的预设图像的R/G值、B/G值、以及G/G值。
其中，显示装置中感光元件200在预设光源下采集的预设图像的红色参数与绿色参数的比例值、蓝色参数与绿色参数的比例值、以及绿色参数与绿色参数的比例值分别为第一比例值、第二比例值及第三比例值，典型显示装置中的感光元件在预设光源下采集的预设图像的红色参数与绿色参数的比例值、蓝色参数与绿色参数的比例值、以及绿色参数与绿色参数的比例值分别为第四比例值、第五比例值及第六比例值。
所述感光元件200在白色光源下可以采集预设图像的红色参数、绿色参数及蓝色参数，从而获得相应的图像，这里所指的“参数”可以是光分量等能表征颜色的参数。其中，R/G值为感光元件200采集的预设图像的红色参数与绿色参数的比值；B/G值为感光元件200采集的预设图像的蓝色参数与绿色参数的比值；G/G值为感光元件200采集的预设图像的绿色参数与绿色参数的比值，即，G/G值为1。在本实施例中，通过上述公式可计算出典型显示装置中感光元件与待测的所述显示装置中感光元件在预设光源下采集的预设图像的颜色参数之间的偏差。
步骤S2，驱动IC根据第一白平衡成像参数与第二白平衡成像参数之间的偏差，计算第一白平衡成像参数与第二白平衡成像参数之间的基准偏差。
其中，所述第三偏差的数值为1，当所述第一偏差和所述第二偏差中的至少一者大于或等于1时，所述驱动IC采用1作为基准偏差；或者，当所述第一偏差和所述第二偏差均小于1时，所述驱动IC采用所述第一偏差和所述第二偏差中最小的一者作为基准偏差。即，所述基准偏差为所述第一偏差、所述第二偏差和所述第三偏差中数值最小的一者。
步骤S3，驱动IC对感光元件采集到的图像数据进行白平衡补偿。
其中，所述驱动IC根据如下公式对感光元件采集的图像进行白平衡补偿，白平衡补偿值=第二白平衡成像参数/第一白平衡成像参数/第一白平衡成像参数与第二白平衡成像参数之间的基准偏差。
进一步的，所述驱动IC对显示装置中感光元件采集到的图像数据进行白平衡补偿的步骤包括：
所述驱动IC计算红光强度补偿值、蓝光强度补偿值以及绿光强度补偿值，并根据红光强度补偿值、蓝光强度补偿值以及绿光强度补偿值对感光元件采集的图像进行白平衡补偿。
其中，所述驱动IC根据如下公式对红光强度补偿值、蓝光强度补偿值以及绿光强度补偿值进行计算：
红光强度补偿值=第四比例值/第一比例值/基准偏差；
蓝光强度补偿值=第五比例值/第二比例值/基准偏差；
绿光强度补偿值=第六比例值/第三比例值/基准偏差。
其中，所述驱动IC通过红光强度补偿值、蓝光强度补偿值以及绿光强度补偿值可以对感光元件采集的预设图像的红色参数、蓝色参数以及绿色参数进行补偿，即本实施例通过调节R、G、B之间的关系进行白平衡补偿，使得所述显示装置的感光元件采集的颜色参数趋近于典型显示装置中的感光元件200在预设光源下采集的预设图像的颜色参数，从而实现所述显示装置的感光元件的白平衡补偿。
在对本申请的显示装置的感光元件进行白平衡调整之后，还可以对白平衡调整之后的产品进行管控，如图4所示，具体的管控方法包括以下步骤：
步骤S11，驱动IC计算白平衡补偿后的第一白平衡成像参数与第二白平衡成像参数之间的第一偏差、第二偏差以及第三偏差。
步骤S12，若第一偏差、第二偏差以及第三偏差均在预设阈值内，则结束；否则，以白平衡补偿后的第一白平衡成像参数作为新的第一白平衡成像参数，再次对显示装置中感光元件采集到的图像数据进行白平衡补偿，直至结束。
其中，所述预设阈值的取值范围为所述预设数量样本显示装置所有第一白平衡成像参数平均值的±3%，但不以此为限，具体的取值范围可根据实际制程而定。若第一偏差、第二偏差以及第三偏差均在预设阈值内，则表示该显示装置的感光元件白平衡色彩一致性良好，该显示装置属于合格产品。否则，该显示装置的感光元件白平衡色彩一致性不佳，需要对显示装置中感光元件采集到的图像数据再次进行白平衡补偿。
如图5所示，图中虚线左侧为白平衡调控前的感光元件感光数值分布图，虚线右侧为白平衡调控后的感光元件感光数值分布图。在白平衡调控之前，同批次待测的显示装置中感光元件在预设光源下采集的预设图像的R/G值以及B/G值的波动范围较大，数值分布离散，屏下感光元件白平衡色彩一致性较差。在白平衡调控之后，同批次待测的显示装置中感光元件在预设光源下采集的预设图像的R/G值以及B/G值的波动范围很小，数值分布收敛，屏下感光元件白平衡色彩一致性良好。
本申请是通过将感光元件与显示面板组装后，驱动IC根据显示装置中感光元件的第一白平衡成像参数，与预设的典型显示装置中感光元件的第二白平衡成像参数之间的偏差，对显示装置中感光元件采集到的图像数据进行白平衡补偿。其中，第一白平衡成像参数为显示装置中的感光元件在预设光源下采集的预设图像的颜色参数；典型显示装置为从整批的显示装置里挑选的预设数量样本显示装置中，与预设数量样本显示装置所有第一白平衡成像参数平均值在预设阈值内的样本显示装置；第二白平衡成像参数为典型显示装置中的感光元件在预设光源下采集的预设图像的颜色参数。本申请通过以上方式能够对整批组装在显示装置中的感光元件进行白平衡补偿，从而解决现有技术中因将感光元件设置在屏下导致的感光元件白平衡色彩一致性较差的问题。
以上对本申请实施例所提供的一种显示装置、显示装置的感光元件的白平衡调整方法进行了详细介绍，本文中应用了具体个例对本申请的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本申请的方法及其核心思想；同时，对于本领域的技术人员，依据本申请的思想，在具体实施方式及应用范围上均会有改变之处，综上所述，本说明书内容不应理解为对本申请的限制。

Claims (20)

  1. 一种显示装置，其包括显示面板、设置在显示面板一侧的感光元件、以及与显示面板和感光元件电连接的驱动IC；
    所述驱动IC，用于根据所述显示装置中感光元件的第一白平衡成像参数，与预设的典型显示装置中感光元件的第二白平衡成像参数之间的偏差，对所述显示装置中感光元件采集到的图像数据进行白平衡补偿；
    其中，所述第一白平衡成像参数为显示装置中的感光元件在预设光源下采集的预设图像的颜色参数；
    所述典型显示装置为从整批的显示装置里挑选的预设数量样本显示装置中的一个样本显示装置，所述典型显示装置的第一白平衡成像参数在预设数量样本显示装置的所有第一白平衡成像参数平均值的预设阈值内；
    所述第二白平衡成像参数为典型显示装置中的感光元件在预设光源下采集的预设图像的颜色参数。
  2. 根据权利要求1所述的显示装置，其中，
    所述驱动IC，还用于根据如下公式对感光元件采集的图像进行白平衡补偿，
    白平衡补偿值=第二白平衡成像参数/第一白平衡成像参数/第一白平衡成像参数与第二白平衡成像参数之间的基准偏差。
  3. 根据权利要求2所述的显示装置，其中，颜色参数中包括红色参数、绿色参数和蓝色参数，第一白平衡成像参数与第二白平衡成像参数之间的偏差包括：红色参数之间的第一偏差、蓝色参数之间的第二偏差和绿色参数之间的第三偏差，所述基准偏差为所述第一偏差、所述第二偏差和所述第三偏差中数值最小的一者。
  4. 根据权利要求3所述的显示装置，其中，所述第一白平衡成像参数包括：显示装置中感光元件在预设光源下采集的预设图像的红色参数与绿色参数的比例值、蓝色参数与绿色参数的比例值、以及绿色参数与绿色参数的比例值；
    所述第二白平衡成像参数包括：典型显示装置中的感光元件在预设光源下采集的预设图像的红色参数与绿色参数的比例值、蓝色参数与绿色参数的比例值、以及绿色参数与绿色参数的比例值；
    其中，所述显示装置中所述感光元件在所述预设光源下采集的所述预设图像的所述红色参数与绿色参数的比例值、所述蓝色参数与绿色参数的比例值、以及所述绿色参数与绿色参数的比例值分别为第一比例值、第二比例值及第三比例值，
    所述典型显示装置中的所述感光元件在所述预设光源下采集的所述预设图像的所述红色参数与绿色参数的比例值、所述蓝色参数与绿色参数的比例值、以及所述绿色参数与绿色参数的比例值分别为第四比例值、第五比例值及第六比例值。
  5. 根据权利要求4所述的显示装置，其中，所述驱动IC还用于根据如下公式对第一白平衡成像参数与第二白平衡成像参数之间的偏差进行计算：
    第一偏差=第四比例值/第一比例值；
    第二偏差=第五比例值/第二比例值；
    第三偏差=第六比例值/第三比例值。
  6. 根据权利要求5所述的显示装置，其中，所述第三偏差的数值为1，
    所述驱动IC还用于当所述第一偏差和所述第二偏差中的至少一者大于或等于1时，采用1作为基准偏差；或者，
    所述驱动IC还用于当所述第一偏差和所述第二偏差均小于1时，采用所述第一偏差和所述第二偏差中最小的一者作为基准偏差。
  7. 根据权利要求6所述的显示装置，其中，所述驱动IC还用于根据红光强度补偿值、蓝光强度补偿值以及绿光强度补偿值对感光元件采集的图像进行白平衡补偿，其中，所述驱动IC用于根据如下公式对红光强度补偿值、蓝光强度补偿值以及绿光强度补偿值进行计算：
    红光强度补偿值=第四比例值/第一比例值/基准偏差；
    蓝光强度补偿值=第五比例值/第二比例值/基准偏差；
    绿光强度补偿值=第六比例值/第三比例值/基准偏差。
  8. 根据权利要求1所述的显示装置，其中，还包括储存模块，所述储存模块与所述驱动IC电连接，用于储存预设的典型显示装置中感光元件的第二白平衡成像参数以及显示装置中感光元件的第一白平衡成像参数。
  9. 根据权利要求1所述的显示装置，其中，所述预设阈值的取值范围为所述预设数量样本显示装置所有第一白平衡成像参数平均值的±3%。
  10. 根据权利要求1所述的显示装置，其中，在预设数量样本显示装置中，当与预设数量样本显示装置所有第一白平衡成像参数平均值在预设阈值内的样本显示装置为两个以上时，所述典型显示装置为两个以上的所述样本显示装置中的任意一个。
  11. 一种显示装置的感光元件的白平衡调整方法，其中，所述显示装置包括显示面板、设置在显示面板一侧的感光元件、以及与显示面板和感光元件电连接的驱动IC；其中，感光元件的白平衡调整方法包括以下步骤：
    所述驱动IC根据所述显示装置中感光元件的第一白平衡成像参数，与预设的典型显示装置中感光元件的第二白平衡成像参数之间的偏差，对所述显示装置中感光元件采集到的图像数据进行白平衡补偿；
    其中，所述第一白平衡成像参数为显示装置中的感光元件在预设光源下采集的预设图像的颜色参数；
    所述典型显示装置为从整批的显示装置里挑选的预设数量样本显示装置中，与预设数量样本显示装置所有第一白平衡成像参数平均值在预设阈值内的样本显示装置；
    所述第二白平衡成像参数为典型显示装置中的感光元件在预设光源下采集的预设图像的颜色参数。
  12. 根据权利要求11所述的显示装置的感光元件的白平衡调整方法，其中，所述驱动IC根据如下公式对感光元件采集的图像进行白平衡补偿，白平衡补偿值=第二白平衡成像参数/第一白平衡成像参数/第一白平衡成像参数与第二白平衡成像参数之间的基准偏差。
  13. 根据权利要求12所述的显示装置的感光元件的白平衡调整方法，其中，颜色参数中包括红色参数、绿色参数和蓝色参数，第一白平衡成像参数与第二白平衡成像参数之间的偏差包括：红色参数之间的第一偏差、蓝色参数之间的第二偏差和绿色参数之间的第三偏差，所述基准偏差为所述第一偏差、所述第二偏差和所述第三偏差中数值最小的一者。
  14. 根据权利要求13所述的显示装置的感光元件的白平衡调整方法，其中，所述第一白平衡成像参数包括：显示装置中感光元件在预设光源下采集的预设图像的红色参数与绿色参数的比例值、蓝色参数与绿色参数的比例值、以及绿色参数与绿色参数的比例值；
    所述第二白平衡成像参数包括：典型显示装置中的感光元件在预设光源下采集的预设图像的红色参数与绿色参数的比例值、蓝色参数与绿色参数的比例值、以及绿色参数与绿色参数的比例值；
    其中，所述显示装置中所述感光元件在所述预设光源下采集的所述预设图像的所述红色参数与绿色参数的比例值、所述蓝色参数与绿色参数的比例值、以及所述绿色参数与绿色参数的比例值分别为第一比例值、第二比例值及第三比例值，
    所述典型显示装置中的所述感光元件在所述预设光源下采集的所述预设图像的所述红色参数与绿色参数的比例值、所述蓝色参数与绿色参数的比例值、以及所述绿色参数与绿色参数的比例值分别为第四比例值、第五比例值及第六比例值。
  15. 根据权利要求14所述的显示装置的感光元件的白平衡调整方法，其中，所述驱动IC对所述显示装置中感光元件采集到的图像数据进行白平衡补偿之前，还包括以下步骤：
    所述驱动IC根据如下公式对第一白平衡成像参数与第二白平衡成像参数之间的偏差进行计算：
    第一偏差=第四比例值/第一比例值；
    第二偏差=第五比例值/第二比例值；
    第三偏差=第六比例值/第三比例值。
  16. 根据权利要求15所述的显示装置的感光元件的白平衡调整方法，其中，所述第三偏差的数值为1，在所述驱动IC对所述显示装置中感光元件采集到的图像数据进行白平衡补偿之前，并且在所述驱动IC计算出第一偏差、第二偏差和第三偏差之后，还包括以下步骤：
    当所述第一偏差和所述第二偏差中的至少一者大于或等于1时，所述驱动IC采用1作为基准偏差；或者，当所述第一偏差和所述第二偏差均小于1时，所述驱动IC采用所述第一偏差和所述第二偏差中最小的一者作为基准偏差。
  17. 根据权利要求16所述的显示装置的感光元件的白平衡调整方法，其中，所述驱动IC对所述显示装置中感光元件采集到的图像数据进行白平衡补偿的步骤包括：
    所述驱动IC计算红光强度补偿值、蓝光强度补偿值以及绿光强度补偿值，并根据红光强度补偿值、蓝光强度补偿值以及绿光强度补偿值对感光元件采集的图像进行白平衡补偿。
  18. 根据权利要求17所述的显示装置的感光元件的白平衡调整方法，其中，所述驱动IC根据如下公式对红光强度补偿值、蓝光强度补偿值以及绿光强度补偿值进行计算：
    红光强度补偿值=第四比例值/第一比例值/基准偏差；
    蓝光强度补偿值=第五比例值/第二比例值/基准偏差；
    绿光强度补偿值=第六比例值/第三比例值/基准偏差。
  19. 根据权利要求11所述的显示装置的感光元件的白平衡调整方法，其中，所述预设阈值的取值范围为所述预设数量样本显示装置所有第一白平衡成像参数平均值的±3%。
  20. 根据权利要求11所述的显示装置的感光元件的白平衡调整方法，其中，在预设数量样本显示装置中，当与预设数量样本显示装置所有第一白平衡成像参数平均值在预设阈值内的样本显示装置为两个以上时，所述典型显示装置为两个以上的所述样本显示装置中的任意一个。
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CN108419067A (zh) * 2018-06-05 2018-08-17 上海小蚁科技有限公司 白平衡参数记录、调整方法及装置、存储介质、终端、相机
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