WO2022178991A1 - 一种显示面板驱动方法、显示装置及驱动装置 - Google Patents
一种显示面板驱动方法、显示装置及驱动装置 Download PDFInfo
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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
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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
- G09G3/2092—Details of a display terminals using a flat panel, the details relating to the control arrangement of the display terminal and to the interfaces thereto
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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]
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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
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0233—Improving the luminance or brightness uniformity across the screen
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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
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0271—Adjustment of the gradation levels within the range of the gradation scale, e.g. by redistribution or clipping
- G09G2320/0276—Adjustment of the gradation levels within the range of the gradation scale, e.g. by redistribution or clipping for the purpose of adaptation to the characteristics of a display device, i.e. gamma correction
Definitions
- the present application relates to the field of display technology, and in particular, to a method for driving a display panel, a display device, and a driving device.
- the brightness uniformity of the display panel during use is one of the important indicators to measure the display effect of the display panel.
- various contamination patches appear due to uneven brightness, which will lead to a decrease in user comfort. spot).
- the current display panel uses a uniform gamma value when driving the pixels to display, and provides the corresponding driving voltage according to the light intensity that the pixels need to achieve. For example, when the pixels reach the same light intensity, the driver chip will provide all pixels with the same However, since different pixels correspond to different voltage drops, when the driver chip provides the same driving voltage, the actual voltage reaching different pixels is different, which in turn leads to different brightness of the light emitted by different pixels.
- the current display panel has the technical problem that uniform gamma value is used to cause uneven display.
- Embodiments of the present application provide a display panel driving method, a display device, and a driving device, so as to alleviate the technical problem of uneven display caused by the uniform gamma value of the display panel.
- a display panel driving method comprising:
- the standard gamma value of the display panel obtain the standard driving voltage value of the target pixel when displaying the target content
- the standard driving voltage value, the driving voltage value of the interval end point of the target driving voltage interval, and the corresponding speckle removal parameter determine the effective driving of the target pixel when displaying the target content Voltage value
- the display panel is driven to work according to the effective driving voltage values of all target pixels in the display panel.
- the determination of the speckle removal parameter is performed according to the standard gamma value, the standard driving voltage value, the driving voltage value of the interval end point of the target driving voltage interval, and the corresponding speckle removal parameter.
- the steps of the effective driving voltage value of the target pixel when displaying the target content include:
- the end point curve value corresponding to the interval end point is generated
- the effective driving voltage value is determined according to the standard curve value, the end point curve value, and the speckle removal parameter corresponding to the interval end point.
- the step of determining the effective driving voltage value according to the standard curve value, the end point curve value, and the speckle removal parameter corresponding to the interval end point includes:
- the endpoint curve value, and the speckle elimination parameter corresponding to the interval endpoint determine the speckle elimination parameter corresponding to the standard driving voltage value
- the effective driving voltage value is determined according to the speckle removal parameter corresponding to the standard driving voltage value and the standard driving voltage value.
- the step of obtaining the standard gamma value includes:
- the test voltage value, the first light-emitting luminance value and the second light-emitting luminance value of the interval endpoints determine the intermediate gamma value corresponding to each interval endpoint;
- the step of obtaining the speckle elimination parameter of the endpoint includes:
- the endpoint speckle elimination parameters of each interval endpoint are determined.
- the step of determining the end point speckle removal parameters of each interval end point according to the first light emitting luminance value corresponding to each interval end point and the reference curve includes:
- the reference curve and the first light-emitting luminance value corresponding to each interval endpoint determine the reference voltage value corresponding to each interval endpoint
- the end point speckle removal parameter corresponding to the end point of each interval is determined.
- the step of determining a reference curve between the driving voltage value of the display panel and the light output luminance value according to the second light output luminance value includes:
- a reference curve between the driving voltage value and the light output luminance value of the display panel is determined.
- the step of driving the display panel to work according to the effective driving voltage values of all target pixels in the display panel includes:
- the display panel is driven to work according to the effective driving voltage value of the target pixel and the effective driving voltage value of the non-target pixel.
- the driving voltage value includes a gray-scale voltage value.
- a display panel driving method comprising:
- the end point curve value corresponding to the interval end point is generated
- the display panel is driven to work according to the effective driving voltage value of the target pixel and the effective driving voltage value of the non-target pixel.
- the step of determining the effective driving voltage value according to the standard curve value, the end point curve value, and the speckle removal parameter corresponding to the interval end point includes:
- the effective driving voltage value is determined according to the speckle removal parameter corresponding to the standard driving voltage value and the standard driving voltage value.
- the step of obtaining the standard gamma value includes:
- the test voltage value, the first light-emitting luminance value and the second light-emitting luminance value of the interval endpoints determine the intermediate gamma value corresponding to each interval endpoint;
- a display device comprising a display panel and a driver chip, wherein:
- the driving chip is used to obtain the standard driving voltage value of the target pixel when displaying the target content according to the standard gamma value of the display panel; obtain the driving voltage interval, the terminal voltage value of each driving voltage interval, and the terminal speckle removal parameter; The target driving voltage interval corresponding to the standard driving voltage value; according to the standard gamma value, the standard driving voltage value, the driving voltage value of the interval end point of the target driving voltage interval and the corresponding speckle removal parameter, determine the The effective driving voltage value of the target pixel when displaying the target content; the display panel is driven to work according to the effective driving voltage value of all target pixels in the display panel.
- the first acquisition unit is used to acquire the standard driving voltage value of the target pixel when displaying the target content according to the standard gamma value of the display panel;
- a second acquiring unit configured to acquire the driving voltage interval, the terminal voltage value of each driving voltage interval, and the terminal speckle removal parameter
- a third acquiring unit configured to acquire a target driving voltage interval corresponding to the standard driving voltage value
- a determination unit configured to determine that the target pixel is displaying the target pixel according to the standard gamma value, the standard driving voltage value, the driving voltage value of the interval end point of the target driving voltage interval and the corresponding speckle removal parameter The effective driving voltage value at the time of content;
- the driving unit is configured to drive the display panel to work according to the effective driving voltage values of all target pixels in the display panel.
- the second obtaining unit may be configured to determine a reference curve between the driving voltage value and the light output luminance value of the display panel according to the second light output luminance value; according to the first light output corresponding to the endpoints of each interval The luminance value and the reference curve determine the endpoint speckle removal parameters of the endpoints of each interval.
- the second obtaining unit may be further configured to determine the reference voltage value corresponding to the end point of each interval according to the reference curve and the first light output brightness value corresponding to the end point of each interval;
- the reference voltage value and the driving voltage value corresponding to the endpoints determine the endpoint speckle removal parameters corresponding to the endpoints of each interval.
- the determining unit may be configured to generate the end point curve value corresponding to the interval end point according to the standard gamma value and the drive voltage value of the interval end point; according to the standard gamma value and the standard gamma value and the standard The driving voltage value is used to generate a standard curve value corresponding to the standard driving voltage value; the effective driving voltage value is determined according to the standard curve value, the end point curve value, and the speckle removal parameter corresponding to the interval end point.
- the determining unit may be further configured to determine the speckle elimination parameter corresponding to the standard driving voltage value according to the standard curve value, the end point curve value, and the speckle elimination parameter corresponding to the interval endpoint ; Determine the effective drive voltage value according to the speckle removal parameter corresponding to the standard drive voltage value and the standard drive voltage value.
- the driving unit may be configured to determine the effective driving voltage values of non-target pixels in the display panel according to the effective driving voltage values of all target pixels; according to the effective driving voltage values of the target pixels and the effective driving voltage value of the non-target pixel to drive the display panel to work.
- An embodiment of the present application provides a display panel driving method.
- the method obtains the standard driving voltage value of the target pixel when displaying the target content according to the standard gamma value of the display panel, and obtains the driving voltage interval and the driving voltage interval of each driving voltage interval.
- the terminal voltage value and the terminal speckle removal parameter, and the target driving voltage interval corresponding to the standard driving voltage value is obtained.
- the present application can set the standard gamma value corresponding to the panel for each different display panel, and then according to the standard gamma value, the standard driving voltage value, the driving voltage value of the interval end point of the target driving voltage interval, and the corresponding speckle removal parameter , determine the effective driving voltage value of the target pixel when displaying the target content, and drive the display panel to work according to the effective driving voltage value of all target pixels in the display panel, thereby alleviating the current display panel using a uniform gamma value to cause uneven display technical issues.
- FIG. 1 is a schematic flowchart of a method for driving a display panel provided by an embodiment of the present application.
- FIG. 2 is a schematic diagram of a gamma curve provided by an embodiment of the present application.
- FIG. 3 is a schematic structural diagram of a display device provided by an embodiment of the present application.
- Embodiments of the present application provide a display panel driving method, a display device, and a driving device, so as to alleviate the technical problem of uneven display caused by the uniform gamma value of the display panel.
- the display panel driving method includes the following steps:
- the step of determining the standard gamma value of the display panel may be: obtaining a first light-emitting luminance value corresponding to the driving voltage value at the end of the interval, and a second light-emitting luminance value corresponding to the test voltage value of the display panel;
- the driving voltage value, the test voltage value, the first light-emitting luminance value and the second light-emitting luminance value of the interval endpoints determine the intermediate gamma value corresponding to each interval endpoint; determine according to the intermediate gamma value
- the standard gamma value wherein, the interval endpoint can be the endpoint of the driving voltage interval, the driving voltage value of the interval endpoint can be the grayscale voltage value corresponding to the interval endpoint, and the test voltage value can be in the driving voltage interval corresponding to the interval endpoint.
- the gray-scale voltage value corresponding to the selected test point, the first light-emitting luminance value and the second light-emitting luminance value may be the light-emitting luminance values collected by the lighting module in the display panel under the corresponding driving voltage value, or may be based on color The luminous brightness value calculated by the metric formula.
- the following formula (1) can be used to determine the intermediate gamma value corresponding to each interval endpoint:
- n represents the grayscale value determined according to the driving voltage value
- lv n represents the corresponding light output brightness when the grayscale value of the pixel is n
- 255 is the maximum grayscale value
- lv 255 is the grayscale value of the pixel is the maximum grayscale value 255 corresponds to the light output brightness
- GM n is the middle gamma value of the display panel when the gray scale value is n.
- the grayscale value corresponding to the driving voltage value at the end of the interval is 50 grayscale, and the corresponding first light output luminance value is 0.1, the intermediate gamma value corresponding to the end of the interval is 0.7.
- the standard gamma value can be calculated using the following formula (2):
- GM M is the standard gamma value
- GM A and GM B are the intermediate gamma values corresponding to the driving voltage values of the two interval endpoints respectively
- GMC is the intermediate gamma value corresponding to the test voltage value.
- the standard gamma value of the display panel is 2.3 as an example for discussion. It can be understood that different display panels may have different standard gamma values, instead of all adopting a unified gamma value, so the embodiments discussed in this application under the condition that the standard gamma value is 2.3 should not be understood For the limitation of the technical solution of the present application.
- the target pixels may be M*N pixels arranged in an array in the display panel.
- the driving voltage values may include gray scale voltage values.
- the step of obtaining the speckle elimination parameters at the endpoints may be: determining a reference curve between the driving voltage value of the display panel and the light-emitting luminance value according to the second light-emitting luminance value; according to the first light-emitting luminance value corresponding to the end points of each interval , and the reference curve, determine the end point speckle removal parameter of each interval end point, wherein, the reference curve can be the gamma curve corresponding to the standard gamma value of the display panel, such as the reference curve can be the standard gamma value of the display panel The corresponding gamma curve when it is 2.3.
- the reference voltage value corresponding to the end point of each interval can be determined according to the reference curve and the first light output brightness value corresponding to the end point of each interval; the reference voltage value and the driving voltage value corresponding to the end point of each interval can be determined. , and determine the endpoint speckle removal parameters corresponding to the endpoints of each interval. It should be understood that due to various factors such as the process and operating loss of the display panel, the reference voltage value required for the target pixel to achieve the target light output brightness is different from the actual driving voltage value.
- the reference voltage value can be based on the reference curve and
- the ideal driving voltage value corresponding to the end point of the interval when the target pixel reaches the first light output luminance value calculated from the first light output luminance value and the actual driving voltage value may be the actual driving voltage value corresponding to the interval end point when the target pixel reaches the first light output luminance value
- the endpoint speckle removal parameter corresponding to each interval endpoint may be the difference between the ideal driving voltage value and the actual driving voltage value.
- the reference voltage value corresponding to the interval end point is the voltage value V1 corresponding to 150 grayscale under ideal conditions
- the actual driving voltage value is the voltage value V2 required to reach 150 grayscale under the actual situation, then the end point corresponding to the interval end point is canceled.
- the speckle parameter can be V2-V1.
- the reference curve between the driving voltage value of the display panel and the light output brightness value may be a gamma curve corresponding to the standard gamma value of the display panel, wherein the gamma curve is the grayscale voltage value of the pixel and the light output brightness value.
- the corresponding curve of the value As shown in FIG. 2 , FIG. 2 is a schematic diagram of a gamma curve of a display panel, the horizontal axis represents the grayscale voltage value, and the vertical axis represents the luminance (cd/m2).
- the standard gamma value (Gamma, GM) of the gamma curve of the solid line (-) is 1, the standard gamma value of the gamma curve of the dashed line (--) is 2.2, and the gamma curve of the dashed line (_._)
- the standard gamma value of 2.3, different display panels can correspond to different gamma curves, wherein, the standard gamma value corresponding to the gamma curve can be the standard gamma value calculated according to the above formula (2), this standard gamma value
- the horse value should be calculated according to the actual condition of the display panel, so it is not limited to this.
- the process of determining the corresponding light-emitting brightness value according to the driving voltage value may be implemented in the following manner:
- the display chromaticity value and the light output luminance value of each group of red sub-pixels, green sub-pixels and blue sub-pixels of the display panel are obtained;
- the target light-emitting luminance value when the driving voltage value of each group of red sub-pixels, green sub-pixels and blue sub-pixels of the display panel is x is calculated.
- a red sub-pixel, a blue sub-pixel and a green sub-pixel form a group of sub-pixels, that is, a pixel.
- the driving voltage value of each sub-pixel in each pixel can be obtained as x The brightness value of the target light at the time.
- the present embodiment calculates the target light-emitting luminance value when the driving voltage value of each group of red sub-pixels, green sub-pixels and blue sub-pixels is x in combination with the chromaticity formula. In this way, a reference curve between the driving voltage value and the light-emitting luminance value of the display panel can be determined according to the corresponding relationship between the driving voltage value and the light-emitting luminance value.
- the target driving voltage interval may be a driving voltage interval including standard driving voltage values.
- this step includes: according to the standard gamma value and the driving voltage value of the interval endpoint, generating the end point curve value corresponding to the interval endpoint; according to the standard gamma value and the standard driving voltage value, generating the standard driving voltage value corresponding to the According to the standard curve value, the endpoint curve value, and the speckle removal parameter corresponding to the interval endpoint, determine the effective driving voltage value of the target pixel when displaying the target content, wherein the endpoint curve value can be based on the standard gamma value corresponding to
- the curve value corresponding to the driving voltage value of the interval end point calculated from the gamma curve of the standard curve value may be the curve value corresponding to the standard driving voltage value calculated according to the gamma curve corresponding to the standard gamma value.
- n represents the grayscale value determined according to the driving voltage value
- GM represents the standard gamma value
- Curve n represents the curve value when the grayscale value is n determined according to the driving voltage value.
- the speckle elimination parameter corresponding to the standard driving voltage value may be determined according to the standard curve value, the end point curve value, and the speckle elimination parameter corresponding to the interval endpoint; the speckle elimination parameter corresponding to the standard driving voltage value and the standard
- the driving voltage value determines the effective driving voltage value of the target pixel when displaying the target content, where the effective driving voltage value can be the actual driving voltage value of the target pixel after the speckle removal process, and the speckle removal parameter corresponding to the end point of the interval can be the end point Speckle removal parameter, the speckle removal parameter corresponding to the standard driving voltage value may be the difference between the standard driving voltage value corresponding to the target pixel and the actual driving voltage value.
- Demura n represents the speckle removal parameter corresponding to the standard driving voltage value
- Curve A and Curve B represent the end point curve values corresponding to the two interval endpoints respectively
- Curve n represents the standard curve value corresponding to the standard driving voltage value
- Demura A and Demura B represent the speckle removal parameters corresponding to the endpoints of the two intervals, respectively.
- the effective driving voltage value of the target pixel when displaying the target content can be V3+V4.
- this step may be: according to the effective driving voltage values of all target pixels, determining the effective driving voltage values of non-target pixels in the display panel; according to the effective driving voltage values of the target pixels and the non-target pixels The effective driving voltage value of the pixel drives the display panel to work.
- the target pixel may be a pixel whose related data such as the effective driving voltage value has been stored in the driving voltage input board corresponding to the display panel, and the non-target pixel may be a pixel whose related data has not been stored in the corresponding display panel.
- a pixel in a driving voltage input board wherein the driving voltage input board can be a TCON board electrically connected to the display panel, a driving voltage table can be stored in the driving voltage input board, and a target pixel corresponding to the target pixel can be stored in the driving voltage table , so that when driving the display panel to work, for the target pixel, you can directly find the corresponding effective driving voltage value according to the driving voltage table and input it into the display panel to drive the target pixel to work, while for the non-target pixel , the effective driving voltage value of the non-target pixel can be determined according to the method for determining the effective driving voltage value of the target pixel to input into the display panel to drive the non-target pixel to work, and the two work together to make the entire display panel work.
- the display panel driving method provided by the embodiment of the present application can obtain the standard driving voltage value of the target pixel when displaying the target content according to the standard gamma value of the display panel, and obtain the driving voltage interval, the terminal voltage value of each driving voltage interval, and the End-point speckle removal parameters, and obtain the target driving voltage interval corresponding to the standard driving voltage value, then, according to the standard gamma value, the standard driving voltage value, the driving voltage value of the interval endpoint of the target driving voltage interval, and the corresponding speckle removal parameter, determine The effective driving voltage value of the target pixel when displaying the target content, and finally, the display panel is driven to work according to the effective driving voltage value of all target pixels in the display panel.
- the solution can set the standard gamma value corresponding to the panel for each different display panel, and then according to the standard gamma value, the standard driving voltage value, the driving voltage value of the interval end point of the target driving voltage interval, and the corresponding speckle removal parameter , determine the effective driving voltage value of the target pixel when displaying the target content, and drive the display panel to work according to the effective driving voltage value of all target pixels in the display panel, thereby alleviating the current display panel using a uniform gamma value to cause uneven display technical issues.
- the display panel 301 includes a plurality of pixels
- the driving chip 302 is used to obtain the standard driving voltage value of the target pixel when displaying the target content according to the standard gamma value of the display panel; obtain the driving voltage interval, the terminal voltage value of each driving voltage interval, and the terminal speckle removal parameter; obtain The target driving voltage interval corresponding to the standard driving voltage value; according to the standard gamma value, the standard driving voltage value, the driving voltage value of the interval end point of the target driving voltage interval and the corresponding speckle removal parameter, determine the The effective driving voltage value of the target pixel when displaying the target content; the display panel is driven to work according to the effective driving voltage value of all target pixels in the display panel;
- the driver chip 302 is specifically configured to generate the endpoint curve value corresponding to the interval endpoint according to the standard gamma value and the driving voltage value of the interval endpoint; according to the standard gamma value and the standard driver voltage value, generate a standard curve value corresponding to the standard driving voltage value; determine the effective driving voltage value according to the standard curve value, the end point curve value, and the speckle removal parameter corresponding to the interval end point.
- the driving chip 302 is specifically configured to determine the speckle elimination parameter corresponding to the standard driving voltage value according to the standard curve value, the end point curve value, and the speckle elimination parameter corresponding to the interval endpoint;
- the speckle removal parameter corresponding to the standard driving voltage value and the standard driving voltage value determine the effective driving voltage value.
- the driving chip 302 is specifically configured to obtain the first light-emitting luminance value corresponding to the driving voltage value of the interval end point and the second light-emitting luminance value corresponding to the test voltage value of the display panel; according to the interval end point
- the driving voltage value, the test voltage value, the first light-emitting luminance value and the second light-emitting luminance value determine the intermediate gamma value corresponding to each interval endpoint; determine the standard gamma value according to the intermediate gamma value Horse value.
- the driving chip 302 is specifically configured to determine a reference curve between the driving voltage value of the display panel and the light-emitting luminance value according to the second light-emitting luminance value; according to the first light-emitting luminance value, and the reference curve, to determine the endpoint speckle removal parameters of the endpoints of each interval.
- the driver chip 302 is specifically configured to determine the reference voltage value corresponding to the end point of each interval according to the reference curve and the first light output brightness value corresponding to the end point of each interval; according to the reference value corresponding to the end point of each interval.
- the voltage value and the driving voltage value determine the endpoint speckle removal parameters corresponding to the endpoints of each interval.
- the driving chip 302 is specifically configured to determine the effective driving voltage values of non-target pixels in the display panel according to the effective driving voltage values of all target pixels; according to the effective driving voltage values of the target pixels and The effective driving voltage value of the non-target pixel drives the display panel to work.
- the display device may further include a lighting module and a memory, the lighting module is used to collect the light-emitting brightness of the pixels in the display panel; the memory is used to store a program required to realize the function of the driver chip.
- the memory is flash memory, which can speed up data access.
- the lighting module includes a camera, such as a Charge-coupled Device (CCD) camera, and the CCD camera is used to collect the display image of the OLED display panel, and the display brightness of each sub-pixel can be obtained, which improves the Brightness adjustment precision.
- a camera such as a Charge-coupled Device (CCD) camera
- CCD Charge-coupled Device
- an embodiment of the present application also provides a driving device, including:
- the first obtaining unit 401 is configured to obtain the standard driving voltage value of the target pixel when displaying the target content according to the standard gamma value of the display panel;
- the second obtaining unit 402 is configured to obtain the driving voltage interval, the terminal voltage value of each driving voltage interval, and the terminal speckle removal parameter;
- the third obtaining unit 403 is used to obtain the target driving voltage interval corresponding to the standard driving voltage value
- the determining unit 404 is configured to determine that the target pixel is displaying the The effective driving voltage value of the target content
- the driving unit 405 is configured to drive the display panel to work according to the effective driving voltage values of all target pixels in the display panel.
- the first obtaining unit 401 may be further configured to obtain the first light-emitting luminance value corresponding to the driving voltage value of the end point of the interval, and the second light-emitting luminance value corresponding to the test voltage value of the display panel; according to the interval
- the drive voltage value of the endpoint, the test voltage value, the first light-emitting luminance value and the second light-emitting luminance value determine the intermediate gamma value corresponding to the endpoint of each interval; determine the standard according to the intermediate gamma value gamma value.
- the second obtaining unit 402 may be configured to determine a reference curve between the driving voltage value of the display panel and the light-emitting luminance value according to the second light-emitting luminance value; according to the first light-emitting luminance value, and the reference curve, to determine the endpoint speckle removal parameters of the endpoints of each interval.
- the second obtaining unit 402 may also be configured to determine the reference voltage value corresponding to the end point of each interval according to the reference curve and the first light output brightness value corresponding to the end point of each interval; With reference to the voltage value and the driving voltage value, the endpoint speckle removal parameters corresponding to the endpoints of each interval are determined.
- the determining unit 404 may be configured to generate an endpoint curve value corresponding to the interval endpoint according to the standard gamma value and the driving voltage value of the interval endpoint; according to the standard gamma value and the standard driving voltage value , generate a standard curve value corresponding to the standard driving voltage value; determine the effective driving voltage value according to the standard curve value, the end point curve value, and the speckle removal parameter corresponding to the interval end point.
- the determining unit 404 may be further configured to determine the speckle elimination parameter corresponding to the standard driving voltage value according to the standard curve value, the end point curve value, and the speckle elimination parameter corresponding to the interval endpoint;
- the speckle removal parameter corresponding to the standard driving voltage value and the standard driving voltage value are used to determine the effective driving voltage value.
- the driving unit 405 may also be configured to determine the effective driving voltage values of non-target pixels in the display panel according to the effective driving voltage values of all target pixels; according to the effective driving voltage values of the target pixels and all The effective driving voltage value of the non-target pixel is used to drive the display panel to work.
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- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
本申请提供一种显示面板驱动方法、显示装置及驱动装置；该方法根据标准伽马值、标准驱动电压值、目标驱动电压区间的区间端点的驱动电压值以及对应的消斑参数，确定目标像素在显示标的内容时的有效驱动电压值，以驱动显示面板工作；本申请通过设置标准伽马值，缓解了当前显示面板显示不均匀的问题。
Description
本申请涉及显示技术领域，尤其涉及一种显示面板驱动方法、显示装置及驱动装置。
显示面板在使用时的亮度均匀程度是衡量显示面板显示效果的重要指标之一。显示面板在使用时因亮度不均匀而导致出现各种污染斑块，会导致用户使用舒适度下降，这种显示面板在使用时亮度分布不均匀，影响画质效果的现象，被称为Mura(斑)。
当前显示面板在驱动像素显示时，会采用统一伽马值，根据像素需要达到的出光强度提供对应的驱动电压，例如，当所述像素达到相同的光强时，驱动芯片将为所有像素提供相同的驱动电压，但是由于不同像素对应不同的压降，这就会导致驱动芯片提供相同的驱动电压时，到达不同像素的实际电压不同，进而导致不同像素出光亮度不同。
即当前显示面板存在采用统一伽马值导致显示不均匀的技术问题。
本申请实施例提供一种显示面板驱动方法、显示装置及驱动装置，以缓解显示面板采用统一伽马值导致的显示不均匀的技术问题。
为解决上述技术问题，本申请实施例提供以下技术方案：
一种显示面板驱动方法，包括：
根据显示面板的标准伽马值，获取目标像素在显示标的内容时的标准驱动电压值；
获取驱动电压区间、各驱动电压区间的端点电压值以及端点消斑参数；
获取所述标准驱动电压值对应的目标驱动电压区间；
根据所述标准伽马值、所述标准驱动电压值、所述目标驱动电压区间的区间端点的驱动电压值以及对应的消斑参数，确定所述目标像素在显示所述标的 内容时的有效驱动电压值；
根据所述显示面板中所有目标像素的有效驱动电压值驱动所述显示面板工作。
在本申请的显示面板驱动方法中，所述根据所述标准伽马值、所述标准驱动电压值、所述目标驱动电压区间的区间端点的驱动电压值以及对应的消斑参数，确定所述目标像素在显示所述标的内容时的有效驱动电压值的步骤，包括：
根据所述标准伽马值以及区间端点的驱动电压值，生成所述区间端点对应的端点曲线值；
根据所述标准伽马值以及所述标准驱动电压值，生成所述标准驱动电压值对应的标准曲线值；
根据所述标准曲线值、所述端点曲线值、以及所述区间端点对应的消斑参数，确定所述有效驱动电压值。
在本申请的显示面板驱动方法中，所述根据所述标准曲线值、所述端点曲线值、以及所述区间端点对应的消斑参数，确定所述有效驱动电压值的步骤，包括：
根据所述标准曲线值、所述端点曲线值、以及所述区间端点对应的消斑参数，确定所述标准驱动电压值对应的消斑参数；
根据所述标准驱动电压值对应的消斑参数、以及所述标准驱动电压值，确定所述有效驱动电压值。
在本申请的显示面板驱动方法中，获取所述标准伽马值的步骤，包括：
获取所述区间端点的驱动电压值对应的第一出光亮度值、所述显示面板的测试电压值对应的第二出光亮度值；
根据所述区间端点的驱动电压值、所述测试电压值、所述第一出光亮度值以及所述第二出光亮度值，确定各区间端点对应的中间伽马值；
根据所述中间伽马值确定所述标准伽马值。
在本申请的显示面板驱动方法中，获取端点消斑参数的步骤，包括：
根据所述第二出光亮度值，确定所述显示面板的驱动电压值与出光亮度值的参考曲线；
根据各区间端点对应的第一出光亮度值、以及所述参考曲线，确定所述各 区间端点的端点消斑参数。
在本申请的显示面板驱动方法中，根据各区间端点对应的第一出光亮度值、以及所述参考曲线，确定各区间端点的端点消斑参数的步骤，包括：
根据所述参考曲线以及各区间端点对应的第一出光亮度值，确定所述各区间端点对应的参考电压值；
根据所述各区间端点对应的参考电压值以及驱动电压值，确定所述各区间端点对应的端点消斑参数。
在本申请的显示面板驱动方法中，所述根据所述第二出光亮度值，确定所述显示面板的驱动电压值与出光亮度值的参考曲线的步骤，包括：
获取驱动电压值和出光亮度值之间的预设对应关系；
获取第二出光亮度值；
基于所述第二出光亮度值，根据所述驱动电压值和出光亮度之间的预设对应关系，确定所述显示面板的驱动电压值与出光亮度值的参考曲线。
在本申请的显示面板驱动方法中，所述根据所述显示面板中所有目标像素的有效驱动电压值驱动所述显示面板工作的步骤，包括：
根据所述所有目标像素的有效驱动电压值，确定所述显示面板中非目标像素的有效驱动电压值；
根据所述目标像素的有效驱动电压值和所述非目标像素的有效驱动电压值，驱动所述显示面板工作。
在本申请的显示面板驱动方法中，所述驱动电压值包括灰阶电压值。一种显示面板驱动方法，包括：
根据显示面板的标准伽马值，获取目标像素在显示标的内容时的标准驱动电压值；
获取驱动电压区间、各驱动电压区间的端点电压值以及端点消斑参数；
获取所述标准驱动电压值对应的目标驱动电压区间；
根据所述标准伽马值以及区间端点的驱动电压值，生成所述区间端点对应的端点曲线值；
根据所述标准伽马值以及所述标准驱动电压值，生成所述标准驱动电压值对应的标准曲线值；
根据所述标准曲线值、所述端点曲线值、以及所述区间端点对应的消斑参数，确定所述有效驱动电压值；
根据所述所有目标像素的有效驱动电压值，确定所述显示面板中非目标像素的有效驱动电压值；
根据所述目标像素的有效驱动电压值和所述非目标像素的有效驱动电压值，驱动所述显示面板工作。
在本申请的显示面板驱动方法中，所述根据所述标准曲线值、所述端点曲线值、以及所述区间端点对应的消斑参数，确定所述有效驱动电压值的步骤，包括：
根据所述标准曲线值、所述端点曲线值、以及所述区间端点对应的消斑参数，确定所述标准驱动电压值对应的消斑参数；
根据所述标准驱动电压值对应的消斑参数、以及所述标准驱动电压值，确定所述有效驱动电压值。
在本申请的显示面板驱动方法中，获取所述标准伽马值的步骤，包括：
获取所述区间端点的驱动电压值对应的第一出光亮度值、所述显示面板的测试电压值对应的第二出光亮度值；
根据所述区间端点的驱动电压值、所述测试电压值、所述第一出光亮度值以及所述第二出光亮度值，确定各区间端点对应的中间伽马值；
根据所述中间伽马值确定所述标准伽马值。
一种显示装置，包括显示面板和驱动芯片，其中：
所述驱动芯片用于根据显示面板的标准伽马值，获取目标像素在显示标的内容时的标准驱动电压值；获取驱动电压区间、各驱动电压区间的端点电压值以及端点消斑参数；获取所述标准驱动电压值对应的目标驱动电压区间；根据所述标准伽马值、所述标准驱动电压值、所述目标驱动电压区间的区间端点的驱动电压值以及对应的消斑参数，确定所述目标像素在显示所述标的内容时的有效驱动电压值；根据所述显示面板中所有目标像素的有效驱动电压值驱动所述显示面板工作。
一种驱动装置，包括：
第一获取单元，用于根据显示面板的标准伽马值，获取目标像素在显示标 的内容时的标准驱动电压值；
第二获取单元，用于获取驱动电压区间、各驱动电压区间的端点电压值以及端点消斑参数；
第三获取单元，用于获取所述标准驱动电压值对应的目标驱动电压区间；
确定单元，用于根据所述标准伽马值、所述标准驱动电压值、所述目标驱动电压区间的区间端点的驱动电压值以及对应的消斑参数，确定所述目标像素在显示所述标的内容时的有效驱动电压值；
驱动单元，用于根据所述显示面板中所有目标像素的有效驱动电压值驱动所述显示面板工作。
在本申请的驱动装置中，第一获取单元可以用于获取所述区间端点的驱动电压值对应的第一出光亮度值、所述显示面板的测试电压值对应的第二出光亮度值；根据所述区间端点的驱动电压值、所述测试电压值、所述第一出光亮度值以及所述第二出光亮度值，确定各区间端点对应的中间伽马值；根据所述中间伽马值确定所述标准伽马值。
在本申请的驱动装置中，第二获取单元可以用于根据所述第二出光亮度值，确定所述显示面板的驱动电压值与出光亮度值的参考曲线；根据各区间端点对应的第一出光亮度值、以及所述参考曲线，确定所述各区间端点的端点消斑参数。
在本申请的驱动装置中，第二获取单元还可以用于根据所述参考曲线以及各区间端点对应的第一出光亮度值，确定所述各区间端点对应的参考电压值；根据所述各区间端点对应的参考电压值以及驱动电压值，确定所述各区间端点对应的端点消斑参数。
在本申请的驱动装置中，确定单元可以用于根据所述标准伽马值以及区间端点的驱动电压值，生成所述区间端点对应的端点曲线值；根据所述标准伽马值以及所述标准驱动电压值，生成所述标准驱动电压值对应的标准曲线值；根据所述标准曲线值、所述端点曲线值、以及所述区间端点对应的消斑参数，确定所述有效驱动电压值。
在本申请的驱动装置中，确定单元还可以用于根据所述标准曲线值、所述端点曲线值、以及所述区间端点对应的消斑参数，确定所述标准驱动电压值对 应的消斑参数；根据所述标准驱动电压值对应的消斑参数、以及所述标准驱动电压值，确定所述有效驱动电压值。
在本申请的驱动装置中，驱动单元可以用于根据所述所有目标像素的有效驱动电压值，确定所述显示面板中非目标像素的有效驱动电压值；根据所述目标像素的有效驱动电压值和所述非目标像素的有效驱动电压值，驱动所述显示面板工作。
本申请实施例中提供了一种显示面板驱动方法，该方法根据显示面板的标准伽马值，获取目标像素在显示标的内容时的标准驱动电压值，并获取驱动电压区间、各驱动电压区间的端点电压值以及端点消斑参数，以及获取所述标准驱动电压值对应的目标驱动电压区间，接着，根据标准伽马值、标准驱动电压值、目标驱动电压区间的区间端点的驱动电压值以及对应的消斑参数，确定目标像素在显示标的内容时的有效驱动电压值，最后，根据显示面板中所有目标像素的有效驱动电压值驱动所述显示面板工作。本申请可以针对每个不同的显示面板都设置该面板对应的标准伽马值，然后根据标准伽马值，标准驱电压值、目标驱动电压区间的区间端点的驱动电压值以及对应的消斑参数，确定目标像素在显示标的内容时的有效驱动电压值，并根据显示面板中所有目标像素的有效驱动电压值驱动所述显示面板工作，从而缓解了当前显示面板采用统一伽马值导致显示不均匀的技术问题。
下面结合附图，通过对本申请的具体实施方式详细描述，将使本申请的技术方案及其它有益效果显而易见。
图1为本申请实施例提供的显示面板驱动方法的流程示意图。
图2为本申请实施例提供的伽马曲线的示意图。
图3为本申请实施例提供的显示装置的结构示意图。
图4为本申请实施例提供的驱动装置的结构示意图。
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。
本申请所提到的方向用语，例如[上]、[下]、[左]、[右]、[前]、[后]、[内]、[外]、[侧]等，仅是参考附加图式的方向。因此，使用的方向用语是用以说明和理解本申请，而非用以限制本申请。术语“第一”、“第二”等仅用于描述目的，而不能理解为指示或是暗示其相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”等的特征可以明示或者隐含地包括一个或者更多个该特征。在本申请的描述中，“多个”的含义是两个或两个以上，除非另有明确具体的限定。
下文的公开提供了许多不同的实施方式或例子用来实现本申请的不同结构。为了简化本申请的公开，下文中对特定例子的部件和设置进行描述。当然，它们仅仅为示例，并且目的不在于限制本申请。此外，本申请可以在不同例子中重复参考数字和/或参考字母，这种重复是为了简化和清楚的目的，其本身不指示所讨论各种实施方式和/或设置之间的关系。此外，本申请提供了的各种特定的工艺和材料的例子，但是本领域普通技术人员可以意识到其他工艺的应用和/或其他材料的使用。
本申请实施例提供一种显示面板驱动方法、显示装置及驱动装置，以缓解显示面板采用统一伽马值导致的显示不均匀的技术问题。
如图1所示，本申请实施例提供的显示面板驱动方法包括以下步骤：
101：测定显示面板的标准伽马值。
在一种实施例中，测定显示面板的标准伽马值的步骤可以是：获取区间端点的驱动电压值对应的第一出光亮度值、显示面板的测试电压值对应的第二出光亮度值；根据所述区间端点的驱动电压值、所述测试电压值、所述第一出光亮度值以及所述第二出光亮度值，确定各区间端点对应的中间伽马值；根据所述中间伽马值确定所述标准伽马值；其中，区间端点可以是驱动电压区间的端点，区间端点的驱动电压值可以是区间端点对应的灰阶电压值，测试电压值可以是在区间端点对应的驱动电压区间内选取的测试点对应的灰阶电压值，第一 出光亮度值和第二出光亮度值可以是在对应的驱动电压值下采用显示面板中的采光模块采集得到的出光亮度值，或者可以是根据色度学公式计算得到的出光亮度值。
在一种实施例中，可以采用如下公式(1)确定各区间端点对应的中间伽马值：
其中，n表示根据驱动电压值确定的灰阶值，lv
n表示像素的灰阶值是n时对应的出光亮度，255为最大灰阶值，lv
255为像素的灰阶值是最大灰阶值255时对应的出光亮度，GM
n为显示面板在灰阶值为n时的中间伽马值。
具体地，例如区间端点的驱动电压值对应的灰阶值为50灰阶，对应的第一出光亮度值为0.1时，该区间端点对应的中间伽马值为0.7。
可以采用如下公式(2)计算标准伽马值：
GM
M＝(GM
A+GM
B+GM
C)/3 (2)
其中，GM
M为标准伽马值，GM
A和GM
B为两个区间端点的驱动电压值分别对应的中间伽马值，GM
C为测试电压值对应的中间伽马值。
在以下实施例中，以显示面板的标准伽马值为2.3为例展开论述。可以理解的是，不同的显示面板可以有不同的标准伽马值，而非全部采用统一伽马值，因此本申请中所论述的在标准伽马值为2.3的条件下的实施例不应当理解为对本申请技术方案的限制。
102：根据显示面板的标准伽马值，获取目标像素在显示标的内容时的标准驱动电压值。
在一种实施例中，标的内容可以是显示面板需要显示的图像或视频内容等；标准驱动电压值可以是当前使得目标像素出光的理想驱动电压值。
在一种实施例中，目标像素可以是显示面板中阵列排布的M*N个像素。
在一种实施例中，驱动电压值可以包括灰阶电压值。
103：获取驱动电压区间、各驱动电压区间的端点电压值以及端点消斑参数。
在一种实施例中，获取端点消斑参数的步骤可以是：根据第二出光亮度值，确定显示面板的驱动电压值与出光亮度值的参考曲线；根据各区间端点对应的 第一出光亮度值、以及所述参考曲线，确定所述各区间端点的端点消斑参数，其中，参考曲线可以是显示面板的标准伽马值对应的伽马曲线，如参考曲线可以是显示面板的标准伽马值为2.3时对应的伽马曲线。
在一种实施例中，可以根据参考曲线以及各区间端点对应的第一出光亮度值，确定所述各区间端点对应的参考电压值；根据所述各区间端点对应的参考电压值以及驱动电压值，确定所述各区间端点对应的端点消斑参数。需要理解的是，由于显示面板的制程及工作损耗等各种因素，会使目标像素达到目标出光亮度所需要的参考电压值与实际驱动电压值有差异，例如参考电压值可以是根据参考曲线和第一出光亮度值计算得到的使目标像素达到第一出光亮度值时区间端点对应的理想驱动电压值，实际驱动电压值可以是使目标像素达到第一出光亮度时区间端点对应的实际驱动电压值，各区间端点对应的端点消斑参数可以是理想驱动电压值和实际驱动电压值之间的差值。例如区间端点对应的参考电压值为理想情况下达到150灰阶对应的电压值V1，其实际驱动电压值为实际情况下达到150灰阶所需的电压值V2，那么该区间端点对应的端点消斑参数可以是V2-V1。
在一种实施例中，显示面板的驱动电压值与出光亮度值的参考曲线可以是显示面板的标准伽马值对应的伽马曲线，其中，伽马曲线为像素的灰阶电压值与出光亮度值的对应曲线。如图2所示，图2为显示面板的伽马曲线示意图，其横轴表示灰阶电压值，而纵轴表示亮度(cd/m2)。实线(—)的伽马曲线的标准伽马值(Gamma，GM)为1，虚线(--)的伽马曲线的标准伽马值为2.2，而虚线(_._)的伽马曲线的标准伽马值为2.3，不同的显示面板可以对应不同的伽马曲线，其中，伽马曲线对应的标准伽马值可以是依据上述公式(2)计算所得的标准伽马值，此标准伽马值应视显示面板的实际状况计算而定，故在此并不限制于此。
在一种实施例中，根据驱动电压值确定对应的出光亮度值的过程可以通过以下方式实现：
首先，获取输入的驱动电压值为x时，显示面板各组红色子像素、绿色子像素和蓝色子像素的显示色度值和出光亮度值；
获取白色目标色度值和白色目标亮度值；
根据色度学公式计算所述显示面板各组红色子像素、绿色子像素和蓝色子像素的驱动电压值为x时的目标出光亮度值。
具体的，一个红色子像素、一个蓝色子像素和一个绿色子像素组成一组子像素，即组成一个像素，根据色度学公式可以得到每一个像素内每一子像素的驱动电压值为x时的目标出光亮度值。本实施例根据白色目标色度值和白色目标亮度值，结合色度学公式计算各组红色子像素、绿色子像素和蓝色子像素的驱动电压值为x时的目标出光亮度值。由此，可以根据驱动电压值和出光亮度值之间的对应关系，确定显示面板的驱动电压值与出光亮度值的参考曲线。
104：获取标准驱动电压值对应的目标驱动电压区间。
在一种实施例中，目标驱动电压区间可以是包括标准驱动电压值的驱动电压区间。
105：根据标准伽马值、标准驱动电压值、目标驱动电压区间的区间端点的驱动电压值以及对应的消斑参数，确定目标像素在显示标的内容时的有效驱动电压值。
在一种实施例中，本步骤包括：根据标准伽马值以及区间端点的驱动电压值，生成区间端点对应的端点曲线值；根据标准伽马值以及标准驱动电压值，生成标准驱动电压值对应的标准曲线值；根据标准曲线值、端点曲线值、以及区间端点对应的消斑参数，确定目标像素在显示标的内容时的有效驱动电压值，其中，端点曲线值可以是根据标准伽马值对应的伽马曲线计算得到的区间端点的驱动电压值对应的曲线值，标准曲线值可以是根据标准伽马值对应的伽马曲线计算得到的标准驱动电压值对应的曲线值。
具体地，可以采用如下公式(3)计算端点曲线值或标准曲线值：
Curve
n＝(n/255)
GM (3)
其中，n表示根据驱动电压值确定的灰阶值，GM表示标准伽马值，Curve
n表示根据驱动电压值确定的灰阶值为n时的曲线值。
例如，在显示面板的标准伽马值为GM＝2.3的条件下，根据驱动电压值确定的灰阶值为128灰阶时对应的曲线值Curve
128＝0.204899。
在一种实施例中，可以根据标准曲线值、端点曲线值、以及区间端点对应的消斑参数，确定标准驱动电压值对应的消斑参数；根据标准驱动电压值对应 的消斑参数、以及标准驱动电压值，确定目标像素在显示标的内容时的有效驱动电压值，其中，有效驱动电压值可以是目标像素在经过消斑处理后的实际驱动电压值，区间端点对应的消斑参数可以是端点消斑参数，标准驱动电压值对应的消斑参数可以是目标像素对应的标准驱动电压值和实际驱动电压值之间的差值。
具体地，可以采用如下公式(4)确定标准驱动电压值对应的消斑参数：
其中，Demura
n表示标准驱动电压值对应的消斑参数，Curve
A和Curve
B分别代表两个区间端点对应的端点曲线值，Curve
n代表标准驱动电压值对应的标准曲线值，Demura
A和Demura
B分别表示两个区间端点对应的消斑参数。
例如：标准驱动电压为达到100灰阶对应的驱动电压值V3，标准驱动电压对应的消斑参数为V4，那么目标像素在显示标的内容时的有效驱动电压值可以是V3+V4。
106：根据显示面板中所有目标像素的有效驱动电压值驱动显示面板工作。
在一种实施例中，本步骤可以是：根据所有目标像素的有效驱动电压值，确定显示面板中非目标像素的有效驱动电压值；根据所述目标像素的有效驱动电压值和所述非目标像素的有效驱动电压值，驱动所述显示面板工作。
在一种实施例中，目标像素可以是其相关数据如有效驱动电压值等已存入显示面板对应的驱动电压输入板中的像素，非目标像素可以是其相关数据尚未存入显示面板对应的驱动电压输入板中的像素，其中，驱动电压输入板可以是与显示面板电性连接的TCON板，该驱动电压输入板中可以存储有驱动电压表，在驱动电压表中可以存储有目标像素对应的有效驱动电压值，以使得在驱动显示面板工作时，针对目标像素，可以直接根据该驱动电压表查找对应的有效驱动电压值并输入到显示面板中驱动该目标像素工作，而针对非目标像素，可以根据目标像素的有效驱动电压值的确定方法确定非目标像素的有效驱动电压值，以输入到显示面板中驱动该非目标像素工作，两者共同工作以使得整个显示面板工作。
本申请实施例提供的显示面板驱动方法，可以根据显示面板的标准伽马值，获取目标像素在显示标的内容时的标准驱动电压值，并获取驱动电压区间、 各驱动电压区间的端点电压值以及端点消斑参数，以及获取标准驱动电压值对应的目标驱动电压区间，接着，根据标准伽马值、标准驱动电压值、目标驱动电压区间的区间端点的驱动电压值以及对应的消斑参数，确定目标像素在显示标的内容时的有效驱动电压值，最后，根据显示面板中所有目标像素的有效驱动电压值驱动显示面板工作。该方案可以针对每个不同的显示面板都设置该面板对应的标准伽马值，然后根据标准伽马值，标准驱电压值、目标驱动电压区间的区间端点的驱动电压值以及对应的消斑参数，确定目标像素在显示标的内容时的有效驱动电压值，并根据显示面板中所有目标像素的有效驱动电压值驱动所述显示面板工作，从而缓解了当前显示面板采用统一伽马值导致显示不均匀的技术问题。
相应地，如图3所示，本申请实施例还提供了一种显示装置，包括显示面板301和驱动芯片302，其中：
所述显示面板301包括多个像素；
所述驱动芯片302用于根据显示面板的标准伽马值，获取目标像素在显示标的内容时的标准驱动电压值；获取驱动电压区间、各驱动电压区间的端点电压值以及端点消斑参数；获取所述标准驱动电压值对应的目标驱动电压区间；根据所述标准伽马值、所述标准驱动电压值、所述目标驱动电压区间的区间端点的驱动电压值以及对应的消斑参数，确定所述目标像素在显示所述标的内容时的有效驱动电压值；根据所述显示面板中所有目标像素的有效驱动电压值驱动所述显示面板工作；
可选的，所述驱动芯片302具体用于根据所述标准伽马值以及区间端点的驱动电压值，生成所述区间端点对应的端点曲线值；根据所述标准伽马值以及所述标准驱动电压值，生成所述标准驱动电压值对应的标准曲线值；根据所述标准曲线值、所述端点曲线值、以及所述区间端点对应的消斑参数，确定所述有效驱动电压值。
可选的，所述驱动芯片302具体用于根据所述标准曲线值、所述端点曲线值、以及所述区间端点对应的消斑参数，确定所述标准驱动电压值对应的消斑参数；根据所述标准驱动电压值对应的消斑参数、以及所述标准驱动电压值，确定所述有效驱动电压值。
可选的，所述驱动芯片302具体用于获取所述区间端点的驱动电压值对应的第一出光亮度值、所述显示面板的测试电压值对应的第二出光亮度值；根据所述区间端点的驱动电压值、所述测试电压值、所述第一出光亮度值以及所述第二出光亮度值，确定各区间端点对应的中间伽马值；根据所述中间伽马值确定所述标准伽马值。
可选的，所述驱动芯片302具体用于根据所述第二出光亮度值，确定所述显示面板的驱动电压值与出光亮度值的参考曲线；根据各区间端点对应的第一出光亮度值、以及所述参考曲线，确定所述各区间端点的端点消斑参数。
可选的，所述驱动芯片302具体用于根据所述参考曲线以及各区间端点对应的第一出光亮度值，确定所述各区间端点对应的参考电压值；根据所述各区间端点对应的参考电压值以及驱动电压值，确定所述各区间端点对应的端点消斑参数。
可选的，所述驱动芯片302具体用于根据所述所有目标像素的有效驱动电压值，确定所述显示面板中非目标像素的有效驱动电压值；根据所述目标像素的有效驱动电压值和所述非目标像素的有效驱动电压值，驱动所述显示面板工作。
可选的，所述显示装置还可以包括采光模块和存储器，所述采光模块用于采集所述显示面板中像素的出光亮度；所述存储器用于存在实现所述驱动芯片功能所需的程序。
可选的，所述存储器为闪存，可以加快数据存取速度。
可选的，所述采光模块包括相机，如电荷祸合器件(Charge-coupled Device，CCD)相机，采用CCD相机采集OLED显示面板的显示图像，可以获取到每一个子像素的显示亮度，提高了亮度调节精度。
此外，如图4所示，本申请实施例还提供了一种驱动装置，包括：
第一获取单元401，用于根据显示面板的标准伽马值，获取目标像素在显示标的内容时的标准驱动电压值；
第二获取单元402，用于获取驱动电压区间、各驱动电压区间的端点电压值以及端点消斑参数；
第三获取单元403，用于获取所述标准驱动电压值对应的目标驱动电压区 间；
确定单元404，用于根据所述标准伽马值、所述标准驱动电压值、所述目标驱动电压区间的区间端点的驱动电压值以及对应的消斑参数，确定所述目标像素在显示所述标的内容时的有效驱动电压值；
驱动单元405，用于根据所述显示面板中所有目标像素的有效驱动电压值驱动所述显示面板工作。
可选的，第一获取单元401还可以用于获取所述区间端点的驱动电压值对应的第一出光亮度值、所述显示面板的测试电压值对应的第二出光亮度值；根据所述区间端点的驱动电压值、所述测试电压值、所述第一出光亮度值以及所述第二出光亮度值，确定各区间端点对应的中间伽马值；根据所述中间伽马值确定所述标准伽马值。
可选的，第二获取单元402可以用于根据所述第二出光亮度值，确定所述显示面板的驱动电压值与出光亮度值的参考曲线；根据各区间端点对应的第一出光亮度值、以及所述参考曲线，确定所述各区间端点的端点消斑参数。
可选的，第二获取单元402还可以用于根据所述参考曲线以及各区间端点对应的第一出光亮度值，确定所述各区间端点对应的参考电压值；根据所述各区间端点对应的参考电压值以及驱动电压值，确定所述各区间端点对应的端点消斑参数。
可选地，确定单元404可以用于根据所述标准伽马值以及区间端点的驱动电压值，生成所述区间端点对应的端点曲线值；根据所述标准伽马值以及所述标准驱动电压值，生成所述标准驱动电压值对应的标准曲线值；根据所述标准曲线值、所述端点曲线值、以及所述区间端点对应的消斑参数，确定所述有效驱动电压值。
可选的，确定单元404还可以用于根据所述标准曲线值、所述端点曲线值、以及所述区间端点对应的消斑参数，确定所述标准驱动电压值对应的消斑参数；根据所述标准驱动电压值对应的消斑参数、以及所述标准驱动电压值，确定所述有效驱动电压值。
可选地，驱动单元405还可以用于根据所述所有目标像素的有效驱动电压值，确定所述显示面板中非目标像素的有效驱动电压值；根据所述目标像素的 有效驱动电压值和所述非目标像素的有效驱动电压值，驱动所述显示面板工作。
在上述实施例中，对各个实施例的描述都各有侧重，某个实施例中没有详述的部分，可以参见其他实施例的相关描述。
以上对本申请实施例所提供的一种显示面板驱动方法、显示装置及驱动装置进行了详细介绍，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技术方案及其核心思想；本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本申请各实施例的技术方案的范围。
Claims (20)
- 一种显示面板驱动方法，其包括：根据显示面板的标准伽马值，获取目标像素在显示标的内容时的标准驱动电压值；获取驱动电压区间、各驱动电压区间的端点电压值以及端点消斑参数；获取所述标准驱动电压值对应的目标驱动电压区间；根据所述标准伽马值、所述标准驱动电压值、所述目标驱动电压区间的区间端点的驱动电压值以及对应的消斑参数，确定所述目标像素在显示所述标的内容时的有效驱动电压值；根据所述显示面板中所有目标像素的有效驱动电压值驱动所述显示面板工作。
- 根据权利要求1所述的显示面板驱动方法，其中，所述根据所述标准伽马值、所述标准驱动电压值、所述目标驱动电压区间的区间端点的驱动电压值以及对应的消斑参数，确定所述目标像素在显示所述标的内容时的有效驱动电压值的步骤，包括：根据所述标准伽马值以及区间端点的驱动电压值，生成所述区间端点对应的端点曲线值；根据所述标准伽马值以及所述标准驱动电压值，生成所述标准驱动电压值对应的标准曲线值；根据所述标准曲线值、所述端点曲线值、以及所述区间端点对应的消斑参数，确定所述有效驱动电压值。
- 根据权利要求2所述的显示面板驱动方法，其中，所述根据所述标准曲线值、所述端点曲线值、以及所述区间端点对应的消斑参数，确定所述有效驱动电压值的步骤，包括：根据所述标准曲线值、所述端点曲线值、以及所述区间端点对应的消斑参数，确定所述标准驱动电压值对应的消斑参数；根据所述标准驱动电压值对应的消斑参数、以及所述标准驱动电压值，确定所述有效驱动电压值。
- 根据权利要求1所述的显示面板驱动方法，其中，获取所述标准伽马 值的步骤，包括：获取所述区间端点的驱动电压值对应的第一出光亮度值、所述显示面板的测试电压值对应的第二出光亮度值；根据所述区间端点的驱动电压值、所述测试电压值、所述第一出光亮度值以及所述第二出光亮度值，确定各区间端点对应的中间伽马值；根据所述中间伽马值确定所述标准伽马值。
- 根据权利要求4所述的显示面板驱动方法，其中，获取端点消斑参数的步骤，包括：根据所述第二出光亮度值，确定所述显示面板的驱动电压值与出光亮度值的参考曲线；根据各区间端点对应的第一出光亮度值、以及所述参考曲线，确定所述各区间端点的端点消斑参数。
- 根据权利要求5所述的显示面板驱动方法，其中，根据各区间端点对应的第一出光亮度值、以及所述参考曲线，确定各区间端点的端点消斑参数的步骤，包括：根据所述参考曲线以及各区间端点对应的第一出光亮度值，确定所述各区间端点对应的参考电压值；根据所述各区间端点对应的参考电压值以及驱动电压值，确定所述各区间端点对应的端点消斑参数。
- 根据权利要求5所述的显示面板驱动方法，其中，所述根据所述第二出光亮度值，确定所述显示面板的驱动电压值与出光亮度值的参考曲线的步骤，包括：获取驱动电压值和出光亮度值之间的预设对应关系；获取第二出光亮度值；基于所述第二出光亮度值，根据所述驱动电压值和出光亮度之间的预设对应关系，确定所述显示面板的驱动电压值与出光亮度值的参考曲线。
- 根据权利要求1所述的显示面板驱动方法，其中，所述根据所述显示面板中所有目标像素的有效驱动电压值驱动所述显示面板工作的步骤，包括：根据所述所有目标像素的有效驱动电压值，确定所述显示面板中非目标像 素的有效驱动电压值；根据所述目标像素的有效驱动电压值和所述非目标像素的有效驱动电压值，驱动所述显示面板工作。
- 根据权利要求1所述的显示面板驱动方法，其中，所述驱动电压值包括灰阶电压值。
- 一种显示面板驱动方法，其包括：根据显示面板的标准伽马值，获取目标像素在显示标的内容时的标准驱动电压值；获取驱动电压区间、各驱动电压区间的端点电压值以及端点消斑参数；获取所述标准驱动电压值对应的目标驱动电压区间；根据所述标准伽马值以及区间端点的驱动电压值，生成所述区间端点对应的端点曲线值；根据所述标准伽马值以及所述标准驱动电压值，生成所述标准驱动电压值对应的标准曲线值；根据所述标准曲线值、所述端点曲线值、以及所述区间端点对应的消斑参数，确定所述有效驱动电压值；根据所述所有目标像素的有效驱动电压值，确定所述显示面板中非目标像素的有效驱动电压值；根据所述目标像素的有效驱动电压值和所述非目标像素的有效驱动电压值，驱动所述显示面板工作。
- 根据权利要求10所述的显示面板驱动方法，其中，所述根据所述标准曲线值、所述端点曲线值、以及所述区间端点对应的消斑参数，确定所述有效驱动电压值的步骤，包括：根据所述标准曲线值、所述端点曲线值、以及所述区间端点对应的消斑参数，确定所述标准驱动电压值对应的消斑参数；根据所述标准驱动电压值对应的消斑参数、以及所述标准驱动电压值，确定所述有效驱动电压值。
- 根据权利要求10所述的显示面板驱动方法，其中，获取所述标准伽马值的步骤，包括：获取所述区间端点的驱动电压值对应的第一出光亮度值、所述显示面板的测试电压值对应的第二出光亮度值；根据所述区间端点的驱动电压值、所述测试电压值、所述第一出光亮度值以及所述第二出光亮度值，确定各区间端点对应的中间伽马值；根据所述中间伽马值确定所述标准伽马值。
- 一种显示装置，其包括显示面板和驱动芯片，其中：所述驱动芯片用于根据显示面板的标准伽马值，获取目标像素在显示标的内容时的标准驱动电压值；获取驱动电压区间、各驱动电压区间的端点电压值以及端点消斑参数；获取所述标准驱动电压值对应的目标驱动电压区间；根据所述标准伽马值、所述标准驱动电压值、所述目标驱动电压区间的区间端点的驱动电压值以及对应的消斑参数，确定所述目标像素在显示所述标的内容时的有效驱动电压值；根据所述显示面板中所有目标像素的有效驱动电压值驱动所述显示面板工作。
- 一种驱动装置，其包括：第一获取单元，用于根据显示面板的标准伽马值，获取目标像素在显示标的内容时的标准驱动电压值；第二获取单元，用于获取驱动电压区间、各驱动电压区间的端点电压值以及端点消斑参数；第三获取单元，用于获取所述标准驱动电压值对应的目标驱动电压区间；确定单元，用于根据所述标准伽马值、所述标准驱动电压值、所述目标驱动电压区间的区间端点的驱动电压值以及对应的消斑参数，确定所述目标像素在显示所述标的内容时的有效驱动电压值；驱动单元，用于根据所述显示面板中所有目标像素的有效驱动电压值驱动所述显示面板工作。
- 根据权利要求14所述的驱动装置，其中，第一获取单元可以用于获取所述区间端点的驱动电压值对应的第一出光亮度值、所述显示面板的测试电压值对应的第二出光亮度值；根据所述区间端点的驱动电压值、所述测试电压值、所述第一出光亮度值以及所述第二出光亮度值，确定各区间端点对应的中间伽马值；根据所述中间伽马值确定所述标准伽马值。
- 根据权利要求14所述的驱动装置，其中，第二获取单元可以用于根据所述第二出光亮度值，确定所述显示面板的驱动电压值与出光亮度值的参考曲线；根据各区间端点对应的第一出光亮度值、以及所述参考曲线，确定所述各区间端点的端点消斑参数。
- 根据权利要求14所述的驱动装置，其中，第二获取单元还可以用于根据所述参考曲线以及各区间端点对应的第一出光亮度值，确定所述各区间端点对应的参考电压值；根据所述各区间端点对应的参考电压值以及驱动电压值，确定所述各区间端点对应的端点消斑参数。
- 根据权利要求14所述的驱动装置，其中，确定单元可以用于根据所述标准伽马值以及区间端点的驱动电压值，生成所述区间端点对应的端点曲线值；根据所述标准伽马值以及所述标准驱动电压值，生成所述标准驱动电压值对应的标准曲线值；根据所述标准曲线值、所述端点曲线值、以及所述区间端点对应的消斑参数，确定所述有效驱动电压值。
- 根据权利要求14所述的驱动装置，其中，确定单元还可以用于根据所述标准曲线值、所述端点曲线值、以及所述区间端点对应的消斑参数，确定所述标准驱动电压值对应的消斑参数；根据所述标准驱动电压值对应的消斑参数、以及所述标准驱动电压值，确定所述有效驱动电压值。
- 根据权利要求14所述的驱动装置，其中，驱动单元可以用于根据所述所有目标像素的有效驱动电压值，确定所述显示面板中非目标像素的有效驱动电压值；根据所述目标像素的有效驱动电压值和所述非目标像素的有效驱动电压值，驱动所述显示面板工作。
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