WO2020011169A1 - 伽马校正方法及装置、显示装置、计算机存储介质 - Google Patents

伽马校正方法及装置、显示装置、计算机存储介质 Download PDF

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Publication number
WO2020011169A1
WO2020011169A1 PCT/CN2019/095302 CN2019095302W WO2020011169A1 WO 2020011169 A1 WO2020011169 A1 WO 2020011169A1 CN 2019095302 W CN2019095302 W CN 2019095302W WO 2020011169 A1 WO2020011169 A1 WO 2020011169A1
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Prior art keywords
display
brightness
compensation
display panel
grayscale
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PCT/CN2019/095302
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English (en)
French (fr)
Inventor
喻勇
兰传艳
王鑫
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京东方科技集团股份有限公司
成都京东方光电科技有限公司
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Priority to US16/650,513 priority Critical patent/US11170708B2/en
Publication of WO2020011169A1 publication Critical patent/WO2020011169A1/zh

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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
    • G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
    • G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • 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
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/06—Adjustment of display parameters
    • G09G2320/0673—Adjustment of display parameters for control of gamma adjustment, e.g. selecting another gamma curve
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2360/00—Aspects of the architecture of display systems
    • G09G2360/14—Detecting light within display terminals, e.g. using a single or a plurality of photosensors
    • G09G2360/145—Detecting light within display terminals, e.g. using a single or a plurality of photosensors the light originating from the display screen

Definitions

  • the present disclosure relates to the field of display technology, and in particular, to a gamma correction method and device, a display device, and a computer storage medium.
  • OLED Organic Light Emitting Diode
  • a current-emitting light-emitting device has been increasingly used for its self-luminous, fast response, and wide viewing angle characteristics.
  • high-performance display fields Because OLED display panels have self-luminous properties, after preparing multiple OLED display panels in the production process, each of the OLED display panels needs to be individually gamma-corrected at multiple display brightness to ensure that each OLED display panel is Optical effect at each display brightness.
  • Gamma correction refers to adjusting the display panel so that the gamma value of the adjusted display panel under the corresponding display brightness is within the standard gamma value range.
  • the present disclosure provides a gamma correction method and device, a display device, and a computer storage medium.
  • the technical solution is as follows:
  • a gamma correction method comprising:
  • the measurement data includes m display brightnesses to be compensated and m groups of compensation parameters corresponding to the m display brightnesses, where m is a positive integer;
  • the structures and materials of the second display panel and the first display panel are the same.
  • the acquiring measurement data of the first display panel includes:
  • generating the compensation parameter corresponding to the first display brightness according to the gray scales of all the target gray scale binding points and corresponding standard gray scale brightness values includes:
  • the compensation magnification and the compensation amount are determined as compensation parameters corresponding to the first display brightness.
  • the measurement data further includes the gray scales of all target gray scale binding points at the first display brightness, and the m group of compensation parameters are respectively used to perform a second display panel at the corresponding display brightness. Compensation, including:
  • Compensation is performed for each of the target grayscale binding points of the second display panel under the first display brightness by using a compensation parameter corresponding to the first display brightness.
  • the compensation parameter includes a compensation magnification and a compensation amount
  • the compensation parameter corresponding to the first display brightness is used for each of the targets of the second display panel at the first display brightness.
  • the gray-scale tie points are compensated separately, including:
  • the acquiring measurement data of the first display panel includes:
  • the adopting the m group of compensation parameters to compensate the second display panel under the corresponding display brightness includes:
  • the m set of compensation parameters are respectively used to compensate the second display panel at the corresponding display brightness.
  • the second display brightness is a maximum display brightness.
  • the brightness data is obtained by measuring the brightness of the first display panel at each display brightness with an optical detector.
  • the second display panel and the first display panel satisfy one of the following relationships:
  • the second display panel and the first display panel belong to the same production batch
  • the second display panel is the same display panel as the first display panel.
  • a gamma correction device comprising:
  • An acquisition module configured to acquire measurement data of a first display panel, where the measurement data includes m display brightnesses to be compensated and m groups of compensation parameters corresponding to the m display brightnesses, where m is a positive integer;
  • a compensation module configured to compensate the second display panel under the corresponding display brightness by respectively using the m group of compensation parameters
  • the structures and materials of the second display panel and the first display panel are the same.
  • the obtaining module includes:
  • a first acquisition submodule configured to acquire grayscale brightness values of all grayscale binding points of the first display panel under a first display brightness, where the first display brightness is any one of the m display brightnesses brightness;
  • a second obtaining submodule configured to obtain all target grayscale binding points in which the difference between the actual grayscale luminance value and the corresponding standard grayscale luminance value is greater than the difference threshold among all the grayscale binding points;
  • a generating sub-module is configured to generate a compensation parameter corresponding to the first display brightness according to the gray scales of all target gray scale binding points and corresponding standard gray scale brightness values.
  • the generating sub-module is configured to:
  • the compensation magnification and the compensation amount are determined as compensation parameters corresponding to the first display brightness.
  • the measurement data further includes a gray scale of all target gray scale binding points at the first display brightness
  • the compensation module is configured to:
  • Compensation is performed for each of the target grayscale binding points of the second display panel under the first display brightness by using a compensation parameter corresponding to the first display brightness.
  • the compensation parameters include a compensation ratio and a compensation amount
  • the compensation module is further configured to:
  • the obtaining module is configured to:
  • the compensation module is used for:
  • the m set of compensation parameters are respectively used to compensate the second display panel at the corresponding display brightness.
  • the second display brightness is a maximum display brightness.
  • the brightness data is obtained by measuring the brightness of the first display panel at each display brightness with an optical detector.
  • the second display panel and the first display panel satisfy one of the following relationships:
  • the second display panel and the first display panel belong to the same production batch
  • the second display panel is the same display panel as the first display panel.
  • a display device including a gamma correction device according to any one of the other aspects.
  • a gamma correction device including: a processor and a memory,
  • the memory is used to store a computer program
  • the processor is configured to execute a computer program stored on the memory to implement the gamma correction method according to any one of the aspects.
  • a computer storage medium is provided, and when a program in the storage medium is executed by a processor, the method for gamma correction according to any one of the aspects can be performed.
  • FIG. 1 is a schematic diagram of standard gamma curves corresponding to different display brightness according to an embodiment of the present disclosure
  • FIG. 2 is a flowchart of a gamma correction method according to an embodiment of the present disclosure
  • FIG. 3 is a schematic diagram of a gamma curve of a first display panel under multiple display brightness according to an embodiment of the present disclosure
  • FIG. 4 is a flowchart of a method for acquiring measurement data of a first display panel according to an embodiment of the present disclosure
  • FIG. 5 is a schematic structural diagram of a gamma correction device according to an embodiment of the present disclosure.
  • FIG. 6 is a schematic structural diagram of an acquisition module according to an embodiment of the present disclosure.
  • FIG. 7 is a block diagram of a gamma correction device according to an embodiment of the present disclosure.
  • the currently produced OLED display panels have multiple display brightnesses, and the nit value (brightness intensity) of the display panel is different at different display brightnesses.
  • the grayscale brightness values corresponding to different grayscales are different.
  • the grayscale brightness value corresponding to 0 grayscale is 0, and the grayscale brightness value corresponding to 255 grayscale is the maximum grayscale brightness value at the display brightness.
  • the corresponding relationship between the gray level and the gray level brightness value at each display brightness can be represented by a gamma curve.
  • the gamma curve can intuitively reflect whether the gamma value of the display panel under the corresponding display brightness is within the standard gamma value range.
  • the standard gamma value currently defined is 2.2, and the tolerance range is usually plus or minus 0.2, so the standard gamma value range is 2.0 to 2.4.
  • the gamma curve corresponding to the standard gamma value can be called a standard gamma curve.
  • a gamma curve with a gamma value within the standard gamma range should be between a gamma curve with a gamma value of 2.0 and a gamma curve with a gamma value of 2.4, That is, a gamma curve with a gamma value of 2.0 and a gamma curve with a gamma value of 2.4 are two critical gamma curves.
  • FIG. 1 is a schematic diagram of standard gamma curves corresponding to different display brightness according to an embodiment of the present disclosure.
  • the abscissa represents the grayscale
  • the ordinate represents the grayscale brightness value.
  • the display brightness corresponding to the 11 gamma curves in Figure 1 is 20 nits, 30 nits, 40 nits, 50 nits, 60 nits, 70 nits, 80 nits, 90 nits, A0 nits. , C0 nits, and E0 nits.
  • the minimum display brightness of the display panel is 20 nits
  • the maximum display brightness of the display panel is E0 nits.
  • the gamma values at multiple display brightness levels will vary. Because gamma correction of an OLED display panel under a certain display brightness cannot solve the problem of deviation of the gamma value of the OLED display panel under other display brightnesses, it is currently necessary to separate the OLED display panel under multiple display brightnesses. Perform gamma correction. Since each OLED display panel needs to be individually gamma-corrected at multiple display brightness levels, the gamma correction process takes a long time and affects the productivity of the OLED display panel.
  • FIG. 2 is a flowchart of a gamma correction method provided by an embodiment of the present disclosure.
  • the gamma correction method can be applied to an integrated circuit (IC) chip in a second display panel. As shown in Figure 2, the method includes the following steps:
  • step 101 measurement data of a first display panel is obtained.
  • the measurement data includes m display brightnesses to be compensated and m groups of compensation parameters corresponding to the m display brightnesses, where m is a positive integer.
  • the display panels provided by the embodiments of the present disclosure are all self-luminous display panels.
  • the first display panel may be an OLED display panel.
  • step 102 m sets of compensation parameters are respectively used to compensate the second display panel under the corresponding display brightness.
  • the structure and materials of the second display panel and the first display panel are the same.
  • the structure of the display panel includes the film structure of the display panel and all physical structures such as the IC chip in the display panel.
  • the second display panel and the first display panel satisfy one of the following relationships: the second display panel and the first display panel are the same display panel; or, the second display panel and the first display panel belong to the same production batch Different display panels.
  • the materials, structures, and IC chips of display panels in the same production batch are usually the same.
  • the second display panel and the first display panel are in progress.
  • the gamma values at each display brightness are usually the same, and the measurement data from the first display panel can be applied to the second display panel.
  • the IC chip in the second display panel can use the acquired measurement data of the first display panel to compensate the second display panel without the need for the second display panel.
  • Gamma correction is performed multiple times, which shortens the time consumed by the gamma correction process, thereby increasing the productivity of the display panel.
  • the m display luminances included in the measurement data obtained in the above step 101 may be display luminances that need to be compensated based on the first display panel determination, that is, each of the m display luminances needs to be displayed. make up.
  • the m display brightnesses included in the measurement data may be all display brightnesses of the first display panel, and the compensation parameter corresponding to the display brightnesses that need no compensation among the m display brightnesses may be set to zero.
  • the implementation process of the above step 101 includes: determining m display brightnesses according to the brightness data of the first display panel after the gamma correction at the second display brightness is completed, and the second display brightness is different from the m display brightnesses. Display brightness. Then, the implementation process of the above step 102 includes: after performing gamma correction on the second display panel at the second display brightness, using m groups of compensation parameters to compensate the second display panel at the corresponding display brightness.
  • the gamma values under a plurality of display luminances may have large deviations.
  • Gamma correction is performed on the display panel at a certain display brightness, so that the gamma value of the display panel at the display brightness is within the standard gamma range, and the gamma value of the display panel at other display brightness will also be Close to the standard gamma value, that is, the deviation of the gamma value at other display brightness will be reduced accordingly. Therefore, a display panel that has been subjected to gamma correction at a certain display brightness has less display brightness that needs to be compensated than a display panel that has not been subjected to gamma correction.
  • the time taken for the compensation process of the display panel can be shortened, and the compensation efficiency of the second display panel can be improved.
  • the compensation effect on the second display panel can be guaranteed.
  • the second display brightness is a maximum display brightness of the first display panel and the second display panel. After the display panel completes the gamma correction at the maximum display brightness, the deviation of the gamma values at other display brightness will be correspondingly reduced, which is convenient for compensating the display panel at other display brightness through the compensation circuit.
  • the second display brightness may also be a display brightness other than the maximum display brightness, which is not limited in the embodiment of the present disclosure.
  • the above-mentioned brightness data is obtained by measuring the brightness of the first display panel at each display brightness by an optical detector.
  • the brightness data may be obtained by performing a brightness measurement on the first display panel using an optical detector.
  • the brightness data includes the grayscale brightness values of all grayscale binding points on the gamma curve corresponding to each display brightness. Based on the brightness data, the simulation software can draw a gamma curve of the first display panel at each display brightness.
  • FIG. 3 is a schematic diagram of a gamma curve of a first display panel under multiple display brightness according to an embodiment of the present disclosure.
  • the abscissa represents the gray level of the pixel (referred to as grayscale for short), and the ordinate represents the normalized grayscale brightness value.
  • the gamma curve in the figure includes a standard gamma curve (gamma curve 2.2).
  • Two critical gamma curves (gamma curve 2.0 and gamma curve 2.4), the gamma curve of the first display panel after completing the gamma correction at the second display brightness (corrected gamma) Curve), and a plurality of other gamma curves (including gamma curve a, gamma) generated by the brightness data obtained by measuring the brightness of the first display panel after completing the gamma correction at the second display brightness with the optical detector.
  • Curve b and gamma curve c Referring to FIG.
  • the gamma curve b and the gamma curve c are outside two critical gamma curves, that is, the gamma values corresponding to the gamma curve b and the gamma curve c are not within the standard gamma value range. Therefore, according to the first The brightness data of the display panel after the gamma correction at the second display brightness is completed.
  • the determined m display brightnesses include the display brightness corresponding to the gamma curve b and the display brightness corresponding to the gamma curve c.
  • FIG. 4 is a flowchart of a method for acquiring measurement data of a first display panel according to an embodiment of the present disclosure. As shown in Figure 4, the method includes the following steps:
  • step 1011 the grayscale brightness values of all the grayscale binding points of the first display panel under the first display brightness are obtained, and the first display brightness is any one of the m display brightnesses.
  • the number of gray-scale binding points under each display brightness is determined according to the designed IC chip.
  • each display brightness includes 5 gray scale binding points, and the gray scales of the 5 gray scale binding points are 50, 100, 150, 200, and 250, respectively.
  • the gray-scale binding points can reflect the correspondence between the gray-scale and the gray-scale brightness values.
  • the gray-scale binding points may be points on the gamma curve.
  • the gamma curve 3 has a grayscale binding point A1, the abscissa of the grayscale binding point A1 is 150, the grayscale of A1 representing the grayscale binding point is 150, and the ordinate represents the grayscale binding point.
  • A1 grayscale brightness value is a grayscale binding point A1 grayscale binding point A1
  • the abscissa of the grayscale binding point A1 is 150
  • the grayscale of A1 representing the grayscale binding point is 150
  • the ordinate represents the grayscale binding point.
  • step 1012 among all the grayscale binding points, all target grayscale binding points whose difference between the actual grayscale brightness value and the corresponding standard grayscale brightness value is greater than the difference threshold value are obtained.
  • the standard grayscale brightness value refers to the grayscale brightness value of the grayscale binding points on the standard gamma curve.
  • the standard grayscale brightness value corresponding to the first grayscale binding point refers to the grayscale brightness value of the same grayscale binding point on the standard gamma curve as the grayscale of the first grayscale binding point.
  • the first grayscale binding point is the first -Any gray-scale binding point in display brightness.
  • Different gray-scale binding points have different difference thresholds.
  • the difference threshold corresponding to the first grayscale binding point may be less than or equal to the difference between the critical grayscale brightness value and the corresponding standard grayscale brightness value.
  • the critical grayscale brightness value refers to the first grayscale binding point on the critical gamma curve.
  • the point difference threshold can be designed according to the display accuracy required by the display panel, which is not limited in the embodiments of the present disclosure.
  • the difference threshold corresponding to the first grayscale binding point when the difference threshold corresponding to the first grayscale binding point is equal to the difference between the critical grayscale brightness value and the corresponding standard grayscale brightness value, the difference between the actual grayscale brightness value and the corresponding standard grayscale brightness value
  • the target grayscale binding point whose value is greater than the difference threshold refers to the grayscale binding point on the gamma curve at the first display brightness that is located on the side of the critical gamma curve away from the standard gamma curve, that is, it is not located on the two critical gamma Gray-scale tie points between the curves. For example, referring to FIG.
  • the gamma curve c is a gamma curve at a first display brightness
  • the grayscale binding points A1 and A2 on the gamma curve c are not located between two critical gamma curves, then the The gray-scale binding points A1 and A2 serve as target gray-scale binding points at the first display brightness.
  • step 1013 compensation parameters corresponding to the first display brightness are generated according to the gray scales of all the target gray scale binding points and the corresponding standard gray scale brightness values.
  • the standard grayscale brightness value corresponding to the binding point when each target grayscale binding point is compensated with the compensation magnification and compensation amount, the difference between the target grayscale brightness value and the corresponding standard grayscale brightness value is not greater than the difference threshold.
  • the compensation magnification and the compensation amount are determined as compensation parameters corresponding to the first display brightness.
  • the compensation parameters include a compensation magnification and a compensation amount.
  • the standard grayscale brightness values corresponding to the two target grayscale binding points on the gamma curve at the first display brightness are Z1 and Z2, and the grayscales of the two target grayscale binding points are G1 and G2, respectively.
  • a compensation formula can be used to compensate the target grayscale binding points other than the two target grayscale binding points under the first display brightness, respectively.
  • the first display panel is a sample display panel.
  • the measurement data of the first display panel can be determined based on the measurement data of multiple sample display panels. For example, the average value of the compensation parameters of multiple sample display panels at the same display brightness can be used as the compensation of the first display panel at the display brightness. parameter.
  • the first display brightness and the corresponding compensation parameter may be input to a register of an IC chip in the second display panel.
  • the IC chip controls the compensation circuit in the first through the register.
  • the corresponding compensation parameter is used to compensate the grayscale brightness value of the pixel.
  • an 8-bit register is used, a maximum of 255 grayscale brightness values corresponding to the grayscale can be compensated at the same time. Compared with the time required for gamma correction in the related technology, the compensation process takes a very short time. While ensuring the optical display effect of the display panel, the production capacity of the display panel produced in batches can be improved.
  • the measurement data obtained in the above step 101 may further include the gray scales of all the target gray scale binding points at the first display brightness, and then the implementation process of the above step 102 includes: using compensation parameters corresponding to the first display brightness , Respectively compensating each target grayscale binding point of the second display panel under the first display brightness.
  • each compensation target gray level tie point of the second display panel under the first display brightness is compensated by using a compensation formula.
  • X represents the compensation magnification
  • offset represents the compensation amount
  • G represents the gray scale of the target gray scale tie point
  • Y represents the target gray scale brightness value after compensation for the target gray scale tie point.
  • the compensation magnification X and the compensation amount offset are calculated based on the above-mentioned step 1013.
  • the IC chip in the second display panel may control the compensation circuit to compensate the grayscale brightness value of the pixel under a certain display brightness according to the corresponding relationship between the display brightness stored in the register and the compensation parameter.
  • the IC chip in the second display panel can use the acquired measurement data of the first display panel to compensate the second display panel without the need for the second display panel.
  • Gamma correction is performed multiple times, which shortens the time consumed by the gamma correction process, thereby increasing the productivity of the display panel.
  • the first display panel and the second display panel may belong to the same production batch, and the first display panel may be an extracted sample display panel. Based on the measurement data of the sample display panel, other display panels in the production batch are compensated. While ensuring the optical display effect of the display panel, the productivity of the display panel produced in batches can be improved.
  • FIG. 5 is a schematic structural diagram of a gamma correction device according to an embodiment of the present disclosure. As shown in FIG. 5, the device 20 includes:
  • the obtaining module 201 is configured to obtain measurement data of the first display panel.
  • the measurement data includes m display brightnesses to be compensated and m groups of compensation parameters corresponding to the m display brightnesses, where m is a positive integer.
  • the compensation module 202 is configured to compensate the second display panel under the corresponding display brightness by using m sets of compensation parameters, respectively.
  • the structure and materials of the second display panel and the first display panel are the same.
  • the IC chip in the second display panel may use the measurement data of the first display panel obtained through the acquisition module to compensate the second display panel through the compensation module. It is not necessary to perform multiple gamma corrections on the second display panel, which shortens the time consumed by the gamma correction process, thereby increasing the productivity of the display panel.
  • the obtaining module 201 includes:
  • the second acquisition sub-module 2012 is used to acquire all target grayscale binding points whose difference between the actual grayscale luminance value and the corresponding standard grayscale luminance value is greater than the difference threshold value among all grayscale binding points;
  • a generating sub-module 2013 is configured to generate a compensation parameter corresponding to the first display brightness according to the gray scales of all target gray scale binding points and corresponding standard gray scale brightness values.
  • any two target grayscale binding points among all target grayscale binding points use the grayscale of any two target grayscale binding points and the corresponding standard grayscale brightness value, determine the compensation magnification and compensation amount according to the correction formula, and correct
  • the measurement data further includes a gray scale of all target gray scale binding points at the first display brightness
  • the compensation module is configured to:
  • Compensation parameters corresponding to the first display brightness are used to compensate each target grayscale binding point of the second display panel under the first display brightness.
  • the compensation parameters include a compensation ratio and a compensation amount
  • the compensation module is further configured to:
  • an obtaining module is configured to determine m display brightnesses according to the brightness data of the first display panel after the gamma correction at the second display brightness is completed, and the second display brightness is different from the m display brightnesses;
  • the second display brightness is a maximum display brightness.
  • the brightness data is obtained by measuring the brightness of the first display panel at each display brightness with an optical detector.
  • the second display panel and the first display panel satisfy one of the following relationships:
  • the second display panel and the first display panel belong to the same production batch
  • the second display panel is the same display panel as the first display panel.
  • the IC chip in the second display panel may use the measurement data of the first display panel obtained through the acquisition module to compensate the second display panel through the compensation module. It is not necessary to perform multiple gamma corrections on the second display panel, which shortens the time consumed by the gamma correction process, thereby increasing the productivity of the display panel.
  • the first display panel and the second display panel may belong to the same production batch, and the first display panel may be an extracted sample display panel. Based on the measurement data of the sample display panel, other display panels in the production batch are compensated. While ensuring the optical display effect of the display panel, the productivity of the display panel produced in batches can be improved.
  • An embodiment of the present disclosure provides a display device including a gamma correction device as shown in FIG. 5.
  • the display device may be an OLED display device.
  • the display device may be any product or component having a display function, such as electronic paper, mobile phone, tablet computer, television, display, notebook computer, digital photo frame, navigator, and the like.
  • the display device provided in the embodiment of the present disclosure includes a gamma correction device.
  • the IC chip in the second display panel can use the measurement data of the first display panel obtained through the acquisition module, and the second display can be obtained through the compensation module.
  • the panel compensates, eliminating the need for multiple gamma corrections on the second display panel, shortening the time taken for the gamma correction process, increasing the production capacity of the display panel, and thereby increasing the production capacity of the display device.
  • An embodiment of the present disclosure provides a gamma correction device, which can be integrated on an IC chip and includes a processor and a memory,
  • the memory is used to store a computer program
  • the processor is configured to execute a computer program stored on the memory to implement the gamma correction method according to the method-side embodiment.
  • FIG. 7 is a block diagram of a grayscale compensation device according to an embodiment of the present disclosure.
  • the grayscale compensation device can be applied to a display terminal.
  • the display terminal 300 may be a portable mobile terminal, such as: smartphone, tablet, MP3 player (Moving Picture Experts Group Audio Layer III, moving picture expert compression standard audio level 3), MP4 (Moving Picture Experts Group Audio Audio Layer IV, dynamic Photographic expert compression standard audio layer 4) Player, laptop or desktop computer.
  • the display terminal 300 may also be called other names such as user equipment, portable terminal, laptop terminal, desktop terminal, and the like.
  • the display terminal 300 includes a processor 301 and a memory 302.
  • the processor 301 may include one or more processing cores, such as a 4-core processor, an 8-core processor, and the like.
  • the processor 301 may use at least one hardware form among DSP (Digital Signal Processing), FPGA (Field-Programmable Gate Array), and PLA (Programmable Logic Array). achieve.
  • the processor 301 may also include a main processor and a coprocessor.
  • the main processor is a processor for processing data in the wake state, also called a CPU (Central Processing Unit).
  • the coprocessor is Low-power processor for processing data in standby.
  • the processor 301 may be integrated with a GPU (Graphics Processing Unit, image processor), and the GPU is responsible for rendering and drawing content required to be displayed on the display screen.
  • the processor 301 may further include an AI (Artificial Intelligence) processor, which is used to process computing operations related to machine learning.
  • AI Artificial Intelligence
  • the memory 302 may include one or more computer-readable storage media, which may be non-transitory.
  • the memory 302 may also include high-speed random access memory, and non-volatile memory, such as one or more disk storage devices, flash storage devices.
  • non-transitory computer-readable storage medium in the memory 302 is used to store at least one instruction, and the at least one instruction is used to be executed by the processor 301 to implement the data query provided by the method embodiment in this application. method.
  • the display terminal 300 may further include a peripheral device interface 303 and at least one peripheral device.
  • the processor 301, the memory 302, and the peripheral device interface 303 may be connected through a bus or a signal line.
  • Each peripheral device can be connected to the peripheral device interface 303 through a bus, a signal line, or a circuit board.
  • the peripheral device includes at least one of a radio frequency circuit 304, a display screen 305, a camera 306, an audio circuit 307, a positioning component 308, and a power source 309.
  • the peripheral device interface 303 may be used to connect at least one peripheral device related to I / O (Input / Output) to the processor 301 and the memory 302.
  • the processor 301, the memory 302, and the peripheral device interface 303 are integrated on the same chip or circuit board; in some other embodiments, any one of the processor 301, the memory 302, and the peripheral device interface 303 or Both can be implemented on separate chips or circuit boards, which is not limited in this embodiment.
  • the radio frequency circuit 304 is used to receive and transmit an RF (Radio Frequency) signal, also called an electromagnetic signal.
  • the radio frequency circuit 304 communicates with a communication network and other communication devices through electromagnetic signals.
  • the radio frequency circuit 304 converts electrical signals into electromagnetic signals for transmission, or converts received electromagnetic signals into electrical signals.
  • the radio frequency circuit 304 includes: an antenna system, an RF transceiver, one or more amplifiers, a tuner, an oscillator, a digital signal processor, a codec chipset, a subscriber identity module card, and the like.
  • the radio frequency circuit 304 can communicate with other terminals through at least one wireless communication protocol.
  • the wireless communication protocols include, but are not limited to, the World Wide Web, metropolitan area networks, intranets, mobile communication networks (2G, 3G, 4G, and 5G) of various generations, wireless local area networks, and / or WiFi (Wireless Fidelity) networks.
  • the radio frequency circuit 304 may further include circuits related to NFC (Near Field Communication), which is not limited in this application.
  • the display screen 305 is used to display a UI (User Interface).
  • the UI may include graphics, text, icons, videos, and any combination thereof.
  • the display screen 305 also has the ability to collect touch signals on or above the surface of the display screen 305.
  • the touch signal can be input to the processor 301 as a control signal for processing.
  • the display screen 305 may also be used to provide a virtual button and / or a virtual keyboard, which is also called a soft button and / or a soft keyboard.
  • one display screen 305 may be provided, and a front panel of the display terminal 300 is provided.
  • At least two display screens 305 may be provided on different surfaces of the display terminal 300 or have a folded design.
  • the display screen 305 may be a flexible display screen disposed on a curved surface or a folded surface of the display terminal 300.
  • the display screen 305 can also be set as a non-rectangular irregular figure, that is, a special-shaped screen.
  • the display screen 305 may be an OLED (Organic Light-Emitting Diode) display screen.
  • the camera component 306 is used for capturing images or videos.
  • the camera component 306 includes a front camera and a rear camera.
  • a front camera is disposed on a front panel of a display terminal
  • a rear camera is disposed on a back of the display terminal.
  • there are at least two rear cameras each of which is a main camera, a depth-of-field camera, a wide-angle camera, and a telephoto camera, so as to realize the integration of the main camera and the depth-of-field camera.
  • the camera assembly 306 may further include a flash.
  • the flash can be a monochrome temperature flash or a dual color temperature flash.
  • a dual color temperature flash is a combination of a warm light flash and a cold light flash, which can be used for light compensation at different color temperatures.
  • the audio circuit 307 may include a microphone and a speaker.
  • the microphone is used for collecting sound waves of the user and the environment, and converting the sound waves into electrical signals and inputting them to the processor 301 for processing, or inputting to the radio frequency circuit 304 to implement voice communication.
  • the microphone can also be an array microphone or an omnidirectional acquisition microphone.
  • the speaker is used to convert electrical signals from the processor 301 or the radio frequency circuit 304 into sound waves.
  • the speaker can be a traditional film speaker or a piezoelectric ceramic speaker.
  • the speaker When the speaker is a piezoelectric ceramic speaker, it can not only convert electrical signals into sound waves audible to humans, but also convert electrical signals into sound waves inaudible to humans for ranging purposes.
  • the audio circuit 307 may further include a headphone jack.
  • the positioning component 308 is configured to locate the current geographic position of the display terminal 300 to implement navigation or LBS (Location Based Service).
  • the positioning component 308 may be a positioning component based on a US-based GPS (Global Positioning System), a Beidou system in China, or a Galileo system in Russia.
  • the power source 309 is used to supply power to various components in the display terminal 300.
  • the power source 309 may be AC power, DC power, a disposable battery, or a rechargeable battery.
  • the rechargeable battery may be a wired rechargeable battery or a wireless rechargeable battery.
  • the wired rechargeable battery is a battery charged through a wired line
  • the wireless rechargeable battery is a battery charged through a wireless coil.
  • the rechargeable battery can also be used to support fast charging technology.
  • the display terminal 300 further includes one or more sensors 510.
  • the one or more sensors 510 include, but are not limited to, an acceleration sensor 511, a gyroscope sensor 512, a pressure sensor 513, a fingerprint sensor 514, an optical sensor 515, and a proximity sensor 516.
  • the acceleration sensor 511 may detect the magnitude of acceleration on three coordinate axes of the coordinate system established by the display terminal 300.
  • the acceleration sensor 511 may be used to detect components of the acceleration of gravity on three coordinate axes.
  • the processor 301 may control the touch display screen 305 to display the user interface in a landscape view or a portrait view according to the gravity acceleration signal collected by the acceleration sensor 511.
  • the acceleration sensor 511 may also be used for collecting motion data of a game or a user.
  • the gyro sensor 512 can detect the body direction and the rotation angle of the display terminal 300, and the gyro sensor 512 can cooperate with the acceleration sensor 511 to collect a 3D motion of the user on the display terminal 300.
  • the processor 301 can implement the following functions: motion sensing (such as changing the UI according to the user's tilt operation), image stabilization during shooting, game control, and inertial navigation.
  • the pressure sensor 513 may be disposed on a side frame of the display terminal 300 and / or a lower layer of the touch display screen 305.
  • the processor 301 performs left-right hand recognition or quick operation according to the grip signal collected by the pressure sensor 513.
  • the processor 301 controls the operability controls on the UI interface according to the user's pressure operation on the touch display screen 305.
  • the operability controls include at least one of a button control, a scroll bar control, an icon control, and a menu control.
  • the fingerprint sensor 514 is used to collect a user's fingerprint, and the processor 301 recognizes the identity of the user based on the fingerprint collected by the fingerprint sensor 514, or the fingerprint sensor 514 identifies the identity of the user based on the collected fingerprint. When identifying the user's identity as a trusted identity, the processor 301 authorizes the user to perform related sensitive operations, such as unlocking the screen, viewing encrypted information, downloading software, paying, and changing settings.
  • the fingerprint sensor 514 may be provided on the front, back, or side of the display terminal 300. When a physical button or a manufacturer's logo is set on the display terminal 300, the fingerprint sensor 514 can be integrated with the physical button or the manufacturer's logo.
  • the optical sensor 515 is used to collect the ambient light intensity.
  • the processor 301 may control the display brightness of the touch display screen 305 according to the ambient light intensity collected by the optical sensor 515. Specifically, when the ambient light intensity is high, the display brightness of the touch display screen 305 is increased; when the ambient light intensity is low, the display brightness of the touch display screen 305 is decreased.
  • the processor 301 may also dynamically adjust the shooting parameters of the camera component 306 according to the ambient light intensity collected by the optical sensor 515.
  • the proximity sensor 516 also referred to as a distance sensor, is usually disposed on the front panel of the display terminal 300.
  • the proximity sensor 516 is used to collect a distance between a user and a front surface of the display terminal 300.
  • the processor 301 controls the touch display screen 305 to switch from the bright screen state to the closed screen state;
  • the processor 301 controls the touch display screen 305 to switch from the rest screen state to the bright screen state.
  • FIG. 7 does not constitute a limitation on the display terminal 300, and may include more or fewer components than shown, or combine certain components, or adopt different component arrangements.
  • An embodiment of the present disclosure provides a computer storage medium, and when a program in the storage medium is executed by a processor, it can execute the gamma correction method according to any one of the method-side embodiments.
  • the program may be stored in a computer-readable storage medium.
  • the storage medium mentioned may be a read-only memory, a magnetic disk or an optical disk.

Abstract

一种伽马校正方法及装置（20）、显示装置、计算机存储介质，属于显示技术领域。方法包括：获取第一显示面板的测量数据，测量数据包括待补偿的m个显示亮度以及与m个显示亮度对应的m组补偿参数，m为正整数（101）；分别采用m组补偿参数，在对应的显示亮度下对第二显示面板进行补偿（102）；其中，第二显示面板与第一显示面板的结构和材料均相同。通过显示面板中的IC芯片采用第一显示面板的测量数据，对第二显示面板进行补偿，无需对第二显示面板进行多次伽马校正，缩短了伽马校正过程所耗费的时间，提高了伽马校正效率。

Description

伽马校正方法及装置、显示装置、计算机存储介质
本公开要求于2018年07月12日提交的申请号为201810764429.6、发明名称为“伽马校正方法及装置、显示装置、计算机存储介质”的中国专利申请的优先权，其全部内容通过引用结合在本公开中。
技术领域
本公开涉及显示技术领域，特别涉及一种伽马校正方法及装置、显示装置、计算机存储介质。
背景技术
随着显示技术的发展，有机发光二极管(Organic Light Emitting Diode，OLED)作为一种电流型发光器件，因其所具有的自发光、快速响应以及宽视角等特点而越来越多地被应用于高性能显示领域当中。由于OLED显示面板具有自发光特性，因此在生产过程中制备得到多个OLED显示面板后，需要对每个OLED显示面板在多个显示亮度下分别进行伽马校正，以保证每个OLED显示面板在各个显示亮度下的光学效果。其中，伽马校正指对显示面板进行调整，使调整后的显示面板在对应的显示亮度下的伽马值处于标准伽马值范围内。
发明内容
本公开提供了一种伽马校正方法及装置、显示装置、计算机存储介质。所述技术方案如下：
一方面，提供了一种伽马校正方法，所述方法包括：
获取第一显示面板的测量数据，所述测量数据包括待补偿的m个显示亮度以及与所述m个显示亮度对应的m组补偿参数，所述m为正整数；
分别采用所述m组补偿参数，在对应的显示亮度下对第二显示面板进行补偿；
其中，所述第二显示面板与所述第一显示面板的结构和材料均相同。
可选地，所述获取第一显示面板的测量数据，包括：
获取所述第一显示面板在第一显示亮度下所有灰阶绑点的灰阶亮度值，所 述第一显示亮度为所述m个显示亮度中的任一显示亮度；
获取所述所有灰阶绑点中，实际灰阶亮度值与对应的标准灰阶亮度值的差值大于差值阈值的所有目标灰阶绑点；
根据所述所有目标灰阶绑点的灰阶以及对应的标准灰阶亮度值，生成所述第一显示亮度对应的补偿参数。
可选地，所述根据所述所有目标灰阶绑点的灰阶以及对应的标准灰阶亮度值，生成所述第一显示亮度对应的补偿参数，包括：
获取所述所有目标灰阶绑点中的任意两个目标灰阶绑点；
采用所述任意两个目标灰阶绑点的灰阶以及对应的标准灰阶亮度值，根据校正公式确定补偿倍率和补偿量，所述校正公式为：Z＝X*G+offset，X表示所述补偿倍率，offset表示所述补偿量，G表示目标灰阶绑点的灰阶，Z表示所述目标灰阶绑点对应的标准灰阶亮度值；
当每个所述目标灰阶绑点采用所述补偿倍率和所述补偿量补偿后的目标灰阶亮度值，与对应的标准灰阶亮度值的差值均不大于差值阈值时，将所述补偿倍率和所述补偿量确定为所述第一显示亮度对应的补偿参数。
可选地，所述测量数据还包括所述第一显示亮度下的所有目标灰阶绑点的灰阶，所述分别采用所述m组补偿参数，在对应的显示亮度下对第二显示面板进行补偿，包括：
采用所述第一显示亮度对应的补偿参数，对所述第二显示面板在所述第一显示亮度下的每个所述目标灰阶绑点分别进行补偿。
可选地，所述补偿参数包括补偿倍率和补偿量，所述采用所述第一显示亮度对应的补偿参数，对所述第二显示面板在所述第一显示亮度下的每个所述目标灰阶绑点分别进行补偿，包括：
基于每个所述目标灰阶绑点的灰阶，采用补偿公式分别对所述第二显示面板在所述第一显示亮度下的每个所述目标灰阶绑点进行补偿；
其中，所述补偿公式为：Y＝X*G+offset，X表示所述补偿倍率，offset表示所述补偿量，G表示目标灰阶绑点的灰阶，Y表示所述目标灰阶绑点经过补偿后的灰阶亮度值。
可选地，，所述获取第一显示面板的测量数据，包括：
根据所述第一显示面板在完成第二显示亮度下的伽马校正后的亮度数据，确定所述m个显示亮度，所述第二显示亮度不同于所述m个显示亮度；
所述分别采用所述m组补偿参数，在对应的显示亮度下对第二显示面板进行补偿，包括：
在所述第二显示亮度下对所述第二显示面板进行伽马校正后，分别采用所述m组补偿参数，在对应的显示亮度下对所述第二显示面板进行补偿。
可选地，所述第二显示亮度为最大显示亮度。
可选地，所述亮度数据由光学探测仪对所述第一显示面板在各个显示亮度下进行亮度测量得到。
可选地，所述第二显示面板与所述第一显示面板满足以下一种关系：
所述第二显示面板与所述第一显示面板属于同一生产批次；
所述第二显示面板与所述第一显示面板为同一显示面板。
另一方面，提供了一种伽马校正装置，所述装置包括：
获取模块，用于获取第一显示面板的测量数据，所述测量数据包括待补偿的m个显示亮度以及与所述m个显示亮度对应的m组补偿参数，所述m为正整数；
补偿模块，用于分别采用所述m组补偿参数，在对应的显示亮度下对第二显示面板进行补偿；
其中，所述第二显示面板与所述第一显示面板的结构和材料均相同。
可选地，所述获取模块，包括：
第一获取子模块，用于获取所述第一显示面板在第一显示亮度下所有灰阶绑点的灰阶亮度值，所述第一显示亮度为所述m个显示亮度中的任一显示亮度；
第二获取子模块，用于获取所述所有灰阶绑点中，实际灰阶亮度值与对应的标准灰阶亮度值的差值大于差值阈值的所有目标灰阶绑点；
生成子模块，用于根据所述所有目标灰阶绑点的灰阶以及对应的标准灰阶亮度值，生成所述第一显示亮度对应的补偿参数。
可选地，所述生成子模块，用于：
获取所述所有目标灰阶绑点中的任意两个目标灰阶绑点；
采用所述任意两个目标灰阶绑点的灰阶以及对应的标准灰阶亮度值，根据校正公式确定补偿倍率和补偿量，所述校正公式为：Z＝X*G+offset，X表示所述补偿倍率，offset表示所述补偿量，G表示目标灰阶绑点的灰阶，Z表示所述目标灰阶绑点对应的标准灰阶亮度值；
当每个所述目标灰阶绑点采用所述补偿倍率和所述补偿量补偿后的目标灰 阶亮度值，与对应的标准灰阶亮度值的差值均不大于差值阈值时，将所述补偿倍率和所述补偿量确定为所述第一显示亮度对应的补偿参数。
可选地，所述测量数据还包括所述第一显示亮度下的所有目标灰阶绑点的灰阶，所述补偿模块，用于：
采用所述第一显示亮度对应的补偿参数，对所述第二显示面板在所述第一显示亮度下的每个所述目标灰阶绑点分别进行补偿。
可选地，所述补偿参数包括补偿倍率和补偿量，所述补偿模块，还用于：
基于每个所述目标灰阶绑点的灰阶，采用补偿公式分别对所述第二显示面板在所述第一显示亮度下的每个所述目标灰阶绑点进行补偿；
其中，所述补偿公式为：Y＝X*G+offset，X表示所述补偿倍率，offset表示所述补偿量，G表示目标灰阶绑点的灰阶，Y表示所述目标灰阶绑点经过补偿后的灰阶亮度值。
可选地，所述获取模块，用于：
根据所述第一显示面板在完成第二显示亮度下的伽马校正后的亮度数据，确定所述m个显示亮度，所述第二显示亮度不同于所述m个显示亮度；
所述补偿模块，用于：
在所述第二显示亮度下对所述第二显示面板进行伽马校正后，分别采用所述m组补偿参数，在对应的显示亮度下对所述第二显示面板进行补偿。
可选地，所述第二显示亮度为最大显示亮度。
可选地，所述亮度数据由光学探测仪对所述第一显示面板在各个显示亮度下进行亮度测量得到。
可选地，所述第二显示面板与所述第一显示面板满足以下一种关系：
所述第二显示面板与所述第一显示面板属于同一生产批次；
所述第二显示面板与所述第一显示面板为同一显示面板。
又一方面，提供了一种显示装置，所述显示装置包括如另一方面任一所述的伽马校正装置。
再一方面，提供了一种伽马校正装置，包括：处理器和存储器，
其中，
所述存储器，用于存储计算机程序；
所述处理器，用于执行所述存储器上所存储的计算机程序，实现一方面任一所述的伽马校正方法。
还一方面，提供了一种计算机存储介质，当所述存储介质中的程序由处理器执行时，能够执行一方面任一所述的伽马校正方法。
附图说明
图1是本公开实施例提供的不同显示亮度对应的标准伽马曲线的示意图；
图2是本公开实施例提供的一种伽马校正方法的流程图；
图3是本公开实施例提供的一种第一显示面板在多个显示亮度下的伽马曲线的示意图；
图4是本公开实施例提供的一种获取第一显示面板的测量数据的方法流程图；
图5是本公开实施例提供的一种伽马校正装置的结构示意图；
图6是本公开实施例提供的一种获取模块的结构示意图；
图7是本公开实施例提供的一种伽马校正装置的框图。
具体实施方式
为使本公开的目的、技术方案和优点更加清楚，下面将结合附图对本公开实施方式作进一步地详细描述。
目前生产的OLED显示面板具有多个显示亮度，不同显示亮度下显示面板的尼特值(亮度强度)不同。每个显示亮度下存在0～255灰阶。任一显示亮度下，不同灰阶对应的灰阶亮度值不同。例如，0灰阶对应的灰阶亮度值为0，255灰阶对应的灰阶亮度值为该显示亮度下的最大灰阶亮度值。每个显示亮度下的灰阶与灰阶亮度值之间的对应关系均可以采用伽马曲线表示。伽马曲线可以直观反映显示面板在对应的显示亮度下的伽马值是否处于标准伽马值范围内。其中，伽马曲线上的灰阶绑点满足：I＝Imax×(G/255) n，G表示灰阶绑点的灰阶，I表示该灰阶绑点的灰阶亮度值，Imax表示该伽马曲线对应的显示亮度下的最大灰阶亮度值，n表示伽马值。目前定义的标准伽马值为2.2，通常允许误差范围为正负0.2，则标准伽马值范围为2.0至2.4。标准伽马值对应的伽马曲线可称为标准伽马曲线。由于标准伽马值范围为2.0至2.4，因此伽马值处于标准伽马值范围内的伽马曲线应处于伽马值为2.0的伽马曲线与伽马值为2.4的伽马曲线之间，即伽马值为2.0的伽马曲线与伽马值为2.4的伽马曲线是两条临界伽马曲线。
示例地，图1是本公开实施例提供的不同显示亮度对应的标准伽马曲线的 示意图。如图1所示，横坐标表示灰阶，纵坐标表示灰阶亮度值。图1中的11条伽马曲线对应的显示亮度分别为20尼特、30尼特、40尼特、50尼特、60尼特、70尼特、80尼特、90尼特、A0尼特、C0尼特和E0尼特。假设显示面板具有该11个显示亮度，则该显示面板的最小显示亮度为20尼特，该显示面板的最大显示亮度为E0尼特。
对于完成结构制备的OLED显示面板，多个显示亮度下的伽马值均会出现偏差。由于在某一显示亮度下对OLED显示面板进行伽马校正后，无法解决该OLED显示面板在其他显示亮度下伽马值出现偏差的问题，因此目前需要对OLED显示面板在多个显示亮度下分别进行伽马校正。由于每个OLED显示面板均需要在多个显示亮度下分别进行伽马校正，因此伽马校正过程耗费时间较长，影响OLED显示面板的产能。
图2是本公开实施例提供的一种伽马校正方法的流程图，该伽马校正方法可以应用于第二显示面板中的集成电路(Integrated Circuit，IC)芯片。如图2所示，该方法包括以下步骤：
在步骤101中，获取第一显示面板的测量数据，该测量数据包括待补偿的m个显示亮度以及与该m个显示亮度对应的m组补偿参数，m为正整数。
本公开实施例提供的显示面板均为自发光显示面板。例如第一显示面板可以是OLED显示面板。
在步骤102中，分别采用m组补偿参数，在对应的显示亮度下对第二显示面板进行补偿。
其中，第二显示面板与第一显示面板的结构和材料均相同。显示面板的结构包括显示面板的膜层结构以及显示面板中的IC芯片等所有实体结构。可选地，第二显示面板与第一显示面板满足以下一种关系：第二显示面板与第一显示面板为同一显示面板；或者，第二显示面板与第一显示面板为属于同一生产批次的不同显示面板。同一生产批次的显示面板的材料、结构和IC芯片等通常均相同。
需要说明的是，当第一显示面板与第二显示面板为不同显示面板时，由于第二显示面板与第一显示面板的结构和材料均相同，因此第二显示面板和第一显示面板在进行软件调试(例如伽马校正)之前，各个显示亮度下的伽马值通常均相同，进而第一显示面板的测量数据可以应用于第二显示面板。
综上所述，本公开实施例提供的伽马校正方法，第二显示面板中的IC芯片可以采用获取的第一显示面板的测量数据，对第二显示面板进行补偿，无需对第二显示面板进行多次伽马校正，缩短了伽马校正过程所耗费的时间，进而提高了显示面板的产能。
可选地，上述步骤101中获取的测量数据包括的m个显示亮度可以为基于第一显示面板确定的需要进行补偿的显示亮度，也即是，该m个显示亮度中每个显示亮度均需要补偿。或者，测量数据包括的m个显示亮度可以为第一显示面板的所有显示亮度，则该m个显示亮度中无需进行补偿的显示亮度对应的补偿参数可以设置为0。
可选地，上述步骤101的实现过程，包括：根据第一显示面板在完成第二显示亮度下的伽马校正后的亮度数据，确定m个显示亮度，该第二显示亮度不同于该m个显示亮度。则上述步骤102的实现过程，包括：在第二显示亮度下对第二显示面板进行伽马校正后，分别采用m组补偿参数，在对应的显示亮度下对第二显示面板进行补偿。
需要说明的是，显示面板完成结构制备后，多个显示亮度下的伽马值均会出现较大的偏差。在某一显示亮度下对显示面板进行伽马校正，使显示面板在该显示亮度下的伽马值处于标准伽马值范围内的过程中，显示面板在其它显示亮度下的伽马值也会向标准伽马值靠近，即其它显示亮度下的伽马值的偏差会相应减小。因此，完成某一显示亮度下的伽马校正后的显示面板，与未进行过伽马校正的显示面板相比，其需要补偿的显示亮度较少。进而在第二显示亮度下对第二显示面板进行伽马校正后，再对第二显示面板进行补偿，可以缩短显示面板的补偿过程所耗费的时间，提高对第二显示面板的补偿效率，且能够保证对第二显示面板的补偿效果。
可选地，上述第二显示亮度为第一显示面板和第二显示面板的最大显示亮度。显示面板完成最大显示亮度下的伽马校正后，其它显示亮度下的伽马值的偏差会相应减小，便于通过补偿电路在其它显示亮度下对显示面板进行补偿。该第二显示亮度也可以为除最大显示亮度以外的其它显示亮度，本公开实施例对此不做限定。
可选地，上述亮度数据由光学探测仪对第一显示面板在各个显示亮度下进行亮度测量得到。在第一显示面板完成第二显示亮度下的伽马校正后，可以采用光学探测仪对第一显示面板进行亮度测量得到亮度数据。该亮度数据包括每 个显示亮度对应的伽马曲线上所有灰阶绑点的灰阶亮度值。仿真软件基于该亮度数据，可以绘制得到第一显示面板在各个显示亮度下的伽马曲线。
示例地，图3是本公开实施例提供的一种第一显示面板在多个显示亮度下的伽马曲线的示意图。如图3所示，横坐标表示像素灰阶(简称为灰阶)，纵坐标表示归一化后的灰阶亮度值，图中的伽马曲线包括标准伽马曲线(伽马曲线2.2)，两条临界伽马曲线(伽马曲线2.0和伽马曲线2.4)，完成第二显示亮度下的伽马校正后的第一显示面板在第二显示亮度下的伽马曲线(校正后的伽马曲线)，以及根据光学探测仪对完成第二显示亮度下的伽马校正后的第一显示面板进行亮度测量得到的亮度数据，生成的多条其它伽马曲线(包括伽马曲线a、伽马曲线b和伽马曲线c)。参见图3，伽马曲线b和伽马曲线c处于两条临界伽马曲线以外，即伽马曲线b和伽马曲线c对应的伽马值不处于标准伽马值范围内，因此根据第一显示面板在完成第二显示亮度下的伽马校正后的亮度数据，确定的m个显示亮度包括伽马曲线b对应的显示亮度和伽马曲线c对应的显示亮度。
可选地，图4是本公开实施例提供的一种获取第一显示面板的测量数据的方法流程图。如图4所示，该方法包括以下步骤：
在步骤1011中，获取第一显示面板在第一显示亮度下所有灰阶绑点的灰阶亮度值，该第一显示亮度为m个显示亮度中的任一显示亮度。
可选地，每个显示亮度下的灰阶绑点的数量根据设计的IC芯片确定。示例地，每个显示亮度下包括5个灰阶绑点，该5个灰阶绑点的灰阶分别为50，100，150，200和250。灰阶绑点能够反映灰阶与灰阶亮度值的对应关系，在本公开实施例中，灰阶绑点可以是伽马曲线上的点。示例地，参见图3，伽马曲线3上具有灰阶绑点A1，灰阶绑点A1的横坐标为150，表示灰阶绑点的A1的灰阶为150，纵坐标表示灰阶绑点A1的灰阶亮度值。
在步骤1012中，获取所有灰阶绑点中，实际灰阶亮度值与对应的标准灰阶亮度值的差值大于差值阈值的所有目标灰阶绑点。
其中，标准灰阶亮度值指标准伽马曲线上的灰阶绑点的灰阶亮度值。第一灰阶绑点对应的标准灰阶亮度值，指标准伽马曲线上与第一灰阶绑点的灰阶相同的灰阶绑点的灰阶亮度值，第一灰阶绑点为第一显示亮度下的任一灰阶绑点。不同的灰阶绑点对应的差值阈值不同。第一灰阶绑点对应的差值阈值可以小于或等于临界灰阶亮度值与对应的标准灰阶亮度值的差值，临界灰阶亮度值指临界伽马曲线上与第一灰阶绑点的灰阶相同的灰阶绑点的灰阶亮度值。由于伽马 曲线呈非线性，临界伽马曲线与标准伽马曲线在纵轴方向的间距随横坐标的变化而变化，因此不同灰阶绑点对应的差值阈值通常不同，该各个灰阶绑点的差值阈值可根据显示面板要求的显示精度设计，本公开实施例对此不做限定。
可选地，当第一灰阶绑点对应的差值阈值等于临界灰阶亮度值与对应的标准灰阶亮度值的差值，则实际灰阶亮度值与对应的标准灰阶亮度值的差值大于差值阈值的目标灰阶绑点，指第一显示亮度下的伽马曲线上，位于临界伽马曲线远离标准伽马曲线一侧的灰阶绑点，即不位于两条临界伽马曲线之间的灰阶绑点。示例地，参见图3，假设伽马曲线c为第一显示亮度下的伽马曲线，伽马曲线c上的灰阶绑点A1和A2不位于两条临界伽马曲线之间，则可以将灰阶绑点A1和A2作为第一显示亮度下的目标灰阶绑点。
在步骤1013中，根据所有目标灰阶绑点的灰阶以及对应的标准灰阶亮度值，生成第一显示亮度对应的补偿参数。
可选地，步骤1013的实现过程包括：获取所有目标灰阶绑点中的任意两个目标灰阶绑点；采用该任意两个目标灰阶绑点的灰阶以及对应的标准灰阶亮度值，根据校正公式确定补偿倍率和补偿量，该校正公式为：Z＝X*G+offset，X表示补偿倍率，offset表示补偿量，G表示目标灰阶绑点的灰阶，Z表示目标灰阶绑点对应的标准灰阶亮度值；当每个目标灰阶绑点采用补偿倍率和补偿量补偿后的目标灰阶亮度值，与对应的标准灰阶亮度值的差值均不大于差值阈值时，将该补偿倍率和该补偿量确定为第一显示亮度对应的补偿参数。
可选地，补偿参数包括补偿倍率和补偿量。假设第一显示亮度下的伽马曲线上的两个目标灰阶绑点对应的标准灰阶亮度值分别为Z1和Z2，该两个目标灰阶绑点的灰阶分别为G1和G2，则可以基于校正公式Z＝X*G+offset计算得到第一显示亮度对应的补偿倍率X和补偿量offset。在计算得到补偿倍率X和补偿量offset后，可以采用补偿公式分别对第一显示亮度下除该两个目标灰阶绑点以外的其它目标灰阶绑点进行补偿。其中，补偿公式为：Y＝X*G+offset，G表示某一其它目标灰阶绑点的灰阶，Y表示该其它目标灰阶绑点经过补偿后的目标灰阶亮度值。若存在某个其它目标灰阶绑点经过补偿后的目标灰阶亮度值与对应的标准灰阶亮度值的差值仍大于差值阈值时，则选取两个新的目标灰阶绑点重新计算补偿倍率和补偿量，直至第一显示亮度下的每个目标灰阶绑点采用计算得到的补偿倍率和补偿量补偿后的目标灰阶亮度值，与对应的标准灰阶亮度值的差值均不大于差值阈值，即使得第一显示亮度的伽马曲线上所有灰阶绑 点均位于两条临界伽马曲线之间。
可选地，第一显示面板为样本显示面板。可以基于多个样本显示面板的测量数据确定第一显示面板的测量数据，例如可以将多个样本显示面板在同一显示亮度下的补偿参数的平均值作为第一显示面板在该显示亮度下的补偿参数。
可选地，在生成第一显示亮度对应的补偿参数后，可以将第一显示亮度和对应的补偿参数输入至第二显示面板中的IC芯片的寄存器，IC芯片通过寄存器控制补偿电路在第一显示亮度下采用对应的补偿参数对像素的灰阶亮度值进行补偿。当采用8bit(比特)的寄存器时，最多可以同时对255个灰阶对应的灰阶亮度值进行补偿，与相关技术中进行伽马校正耗费的时间相比，补偿过程耗费的时间极短，在保证显示面板的光学显示效果的同时，可以提高批次生产的显示面板的产能。
可选地，上述步骤101中获取的测量数据还可以包括第一显示亮度下的所有目标灰阶绑点的灰阶，则上述步骤102的实现过程，包括：采用第一显示亮度对应的补偿参数，对第二显示面板在第一显示亮度下的每个目标灰阶绑点分别进行补偿。
可选地，基于每个目标灰阶绑点的灰阶，采用补偿公式分别对第二显示面板在第一显示亮度下的每个目标灰阶绑点进行补偿。其中，补偿公式为：Y＝X*G+offset。X表示补偿倍率，offset表示补偿量，G表示目标灰阶绑点的灰阶，Y表示对目标灰阶绑点补偿后的目标灰阶亮度值。补偿倍率X和补偿量offset基于上述步骤1013中计算得到。
可选地，第二显示面板中的IC芯片可以根据寄存器中存储的显示亮度与补偿参数的对应关系，控制补偿电路在某个显示亮度下采用对应的补偿参数对像素的灰阶亮度值进行补偿。
需要说明的是，本公开实施例提供的伽马校正方法的步骤先后顺序可以进行适当调整，步骤也可以根据情况进行相应增减，任何熟悉本技术领域的技术人员在本公开揭露的技术范围内，可轻易想到变化的方法，都应涵盖在本公开的保护范围之内，因此不再赘述。
综上所述，本公开实施例提供的伽马校正方法，第二显示面板中的IC芯片可以采用获取的第一显示面板的测量数据，对第二显示面板进行补偿，无需对第二显示面板进行多次伽马校正，缩短了伽马校正过程所耗费的时间，进而提高了显示面板的产能。另外，第一显示面板与第二显示面板可以属于同一生产 批次，第一显示面板可以是抽取的样本显示面板，基于样本显示面板的测量数据对该生产批次中的其它显示面板进行补偿，可以在保证显示面板的光学显示效果的同时，提高批次生产的显示面板的产能。
图5是本公开实施例提供的一种伽马校正装置的结构示意图。如图5所示，该装置20包括：
获取模块201，用于获取第一显示面板的测量数据，测量数据包括待补偿的m个显示亮度以及与m个显示亮度对应的m组补偿参数，m为正整数。
补偿模块202，用于分别采用m组补偿参数，在对应的显示亮度下对第二显示面板进行补偿。
其中，第二显示面板与第一显示面板的结构和材料均相同。
综上所述，本公开实施例提供的伽马校正装置，第二显示面板中的IC芯片可以采用通过获取模块获取的第一显示面板的测量数据，通过补偿模块对第二显示面板进行补偿，无需对第二显示面板进行多次伽马校正，缩短了伽马校正过程所耗费的时间，进而提高了显示面板的产能。
可选地，如图6所示，获取模块201，包括：
第一获取子模块2011，用于获取第一显示面板在第一显示亮度下所有灰阶绑点的灰阶亮度值，第一显示亮度为m个显示亮度中的任一显示亮度；
第二获取子模块2012，用于获取所有灰阶绑点中，实际灰阶亮度值与对应的标准灰阶亮度值的差值大于差值阈值的所有目标灰阶绑点；
生成子模块2013，用于根据所有目标灰阶绑点的灰阶以及对应的标准灰阶亮度值，生成第一显示亮度对应的补偿参数。
可选地，生成子模块，用于：
获取所有目标灰阶绑点中的任意两个目标灰阶绑点；采用任意两个目标灰阶绑点的灰阶以及对应的标准灰阶亮度值，根据校正公式确定补偿倍率和补偿量，校正公式为：Z＝X*G+offset，X表示补偿倍率，offset表示补偿量，G表示目标灰阶绑点的灰阶，Z表示目标灰阶绑点对应的标准灰阶亮度值；当每个目标灰阶绑点采用补偿倍率和补偿量补偿后的目标灰阶亮度值，与对应的标准灰阶亮度值的差值均不大于差值阈值时，将补偿倍率和补偿量确定为第一显示亮度对应的补偿参数。
可选地，测量数据还包括第一显示亮度下的所有目标灰阶绑点的灰阶，补 偿模块，用于：
采用第一显示亮度对应的补偿参数，对第二显示面板在第一显示亮度下的每个目标灰阶绑点分别进行补偿。
可选地，补偿参数包括补偿倍率和补偿量，补偿模块，还用于：
基于每个目标灰阶绑点的灰阶，采用补偿公式分别对第二显示面板在第一显示亮度下的每个目标灰阶绑点进行补偿；其中，补偿公式为：Y＝X*G+offset，X表示补偿倍率，offset表示补偿量，G表示目标灰阶绑点的灰阶，Y表示目标灰阶绑点经过补偿后的灰阶亮度值。
可选地，获取模块，用于：根据第一显示面板在完成第二显示亮度下的伽马校正后的亮度数据，确定m个显示亮度，第二显示亮度不同于m个显示亮度；则补偿模块，用于：在第二显示亮度下对第二显示面板进行伽马校正后，分别采用m组补偿参数，在对应的显示亮度下对第二显示面板进行补偿。
可选地，第二显示亮度为最大显示亮度。
可选地，亮度数据由光学探测仪对第一显示面板在各个显示亮度下进行亮度测量得到。
可选地，第二显示面板与第一显示面板满足以下一种关系：
第二显示面板与第一显示面板属于同一生产批次；
第二显示面板与第一显示面板为同一显示面板。
综上所述，本公开实施例提供的伽马校正装置，第二显示面板中的IC芯片可以采用通过获取模块获取的第一显示面板的测量数据，通过补偿模块对第二显示面板进行补偿，无需对第二显示面板进行多次伽马校正，缩短了伽马校正过程所耗费的时间，进而提高了显示面板的产能。另外，第一显示面板与第二显示面板可以属于同一生产批次，第一显示面板可以是抽取的样本显示面板，基于样本显示面板的测量数据对该生产批次中的其它显示面板进行补偿，可以在保证显示面板的光学显示效果的同时，提高批次生产的显示面板的产能。
关于上述实施例中的装置，其中各个模块执行操作的具体方式已经在有关该方法的实施例中进行了详细描述，此处将不做详细阐述说明。
本公开实施例提供了一种显示装置，该显示装置包括如图5所示的伽马校正装置。
可选地，该显示装置可以为OLED显示装置。
该显示装置可以为：电子纸、手机、平板电脑、电视机、显示器、笔记本电脑、数码相框、导航仪等任何具有显示功能的产品或部件。
综上所述，本公开实施例提供的显示装置，包括伽马校正装置，第二显示面板中的IC芯片可以采用通过获取模块获取的第一显示面板的测量数据，通过补偿模块对第二显示面板进行补偿，无需对第二显示面板进行多次伽马校正，缩短了伽马校正过程所耗费的时间，提高了显示面板的产能，进而提高了显示装置的产能。
本公开实施例提供了一种伽马校正装置，该伽马校正装置可以集成在IC芯片上，包括：处理器和存储器，
其中，
所述存储器，用于存储计算机程序；
所述处理器，用于执行所述存储器上所存储的计算机程序，实现如方法侧实施例所述的伽马校正方法。
图7是本公开实施例提供的一种灰阶补偿装置的框图，该灰阶补偿装置可以应用于显示终端。显示终端300可以是便携式移动终端，比如：智能手机、平板电脑、MP3播放器(Moving Picture Experts Group Audio Layer III，动态影像专家压缩标准音频层面3)、MP4(Moving Picture Experts Group Audio Layer IV，动态影像专家压缩标准音频层面4)播放器、笔记本电脑或台式电脑。显示终端300还可能被称为用户设备、便携式终端、膝上型终端、台式终端等其他名称。
通常，显示终端300包括有：处理器301和存储器302。
处理器301可以包括一个或多个处理核心，比如4核心处理器、8核心处理器等。处理器301可以采用DSP(Digital Signal Processing，数字信号处理)、FPGA(Field－Programmable Gate Array，现场可编程门阵列)、PLA(Programmable Logic Array，可编程逻辑阵列)中的至少一种硬件形式来实现。处理器301也可以包括主处理器和协处理器，主处理器是用于对在唤醒状态下的数据进行处理的处理器，也称CPU(Central Processing Unit，中央处理器)；协处理器是用于对在待机状态下的数据进行处理的低功耗处理器。在一些实施例中，处理器301可以在集成有GPU(Graphics Processing Unit，图像处理器)，GPU用于负责显示屏所需要显示的内容的渲染和绘制。一些实施例中，处理器301还可以包括 AI(Artificial Intelligence，人工智能)处理器，该AI处理器用于处理有关机器学习的计算操作。
存储器302可以包括一个或多个计算机可读存储介质，该计算机可读存储介质可以是非暂态的。存储器302还可包括高速随机存取存储器，以及非易失性存储器，比如一个或多个磁盘存储设备、闪存存储设备。在一些实施例中，存储器302中的非暂态的计算机可读存储介质用于存储至少一个指令，该至少一个指令用于被处理器301所执行以实现本申请中方法实施例提供的数据查询方法。
在一些实施例中，显示终端300还可选包括有：外围设备接口303和至少一个外围设备。处理器301、存储器302和外围设备接口303之间可以通过总线或信号线相连。各个外围设备可以通过总线、信号线或电路板与外围设备接口303相连。具体地，外围设备包括：射频电路304、显示屏305、摄像头306、音频电路307、定位组件308和电源309中的至少一种。
外围设备接口303可被用于将I/O(Input/Output，输入/输出)相关的至少一个外围设备连接到处理器301和存储器302。在一些实施例中，处理器301、存储器302和外围设备接口303被集成在同一芯片或电路板上；在一些其他实施例中，处理器301、存储器302和外围设备接口303中的任意一个或两个可以在单独的芯片或电路板上实现，本实施例对此不加以限定。
射频电路304用于接收和发射RF(Radio Frequency，射频)信号，也称电磁信号。射频电路304通过电磁信号与通信网络以及其他通信设备进行通信。射频电路304将电信号转换为电磁信号进行发送，或者，将接收到的电磁信号转换为电信号。可选地，射频电路304包括：天线系统、RF收发器、一个或多个放大器、调谐器、振荡器、数字信号处理器、编解码芯片组、用户身份模块卡等等。射频电路304可以通过至少一种无线通信协议来与其它终端进行通信。该无线通信协议包括但不限于：万维网、城域网、内联网、各代移动通信网络(2G、3G、4G及5G)、无线局域网和/或WiFi(Wireless Fidelity，无线保真)网络。在一些实施例中，射频电路304还可以包括NFC(Near Field Communication，近距离无线通信)有关的电路，本申请对此不加以限定。
显示屏305用于显示UI(User Interface，用户界面)。该UI可以包括图形、文本、图标、视频及其它们的任意组合。当显示屏305是触摸显示屏时，显示屏305还具有采集在显示屏305的表面或表面上方的触摸信号的能力。该触摸 信号可以作为控制信号输入至处理器301进行处理。此时，显示屏305还可以用于提供虚拟按钮和/或虚拟键盘，也称软按钮和/或软键盘。在一些实施例中，显示屏305可以为一个，设置显示终端300的前面板；在另一些实施例中，显示屏305可以为至少两个，分别设置在显示终端300的不同表面或呈折叠设计；在再一些实施例中，显示屏305可以是柔性显示屏，设置在显示终端300的弯曲表面上或折叠面上。甚至，显示屏305还可以设置成非矩形的不规则图形，也即异形屏。显示屏305可以为OLED(Organic Light-Emitting Diode，有机发光二极管)显示屏。
摄像头组件306用于采集图像或视频。可选地，摄像头组件306包括前置摄像头和后置摄像头。通常，前置摄像头设置在显示终端的前面板，后置摄像头设置在显示终端的背面。在一些实施例中，后置摄像头为至少两个，分别为主摄像头、景深摄像头、广角摄像头、长焦摄像头中的任意一种，以实现主摄像头和景深摄像头融合实现背景虚化功能、主摄像头和广角摄像头融合实现全景拍摄以及VR(Virtual Reality，虚拟现实)拍摄功能或者其它融合拍摄功能。在一些实施例中，摄像头组件306还可以包括闪光灯。闪光灯可以是单色温闪光灯，也可以是双色温闪光灯。双色温闪光灯是指暖光闪光灯和冷光闪光灯的组合，可以用于不同色温下的光线补偿。
音频电路307可以包括麦克风和扬声器。麦克风用于采集用户及环境的声波，并将声波转换为电信号输入至处理器301进行处理，或者输入至射频电路304以实现语音通信。出于立体声采集或降噪的目的，麦克风可以为多个，分别设置在显示终端300的不同部位。麦克风还可以是阵列麦克风或全向采集型麦克风。扬声器则用于将来自处理器301或射频电路304的电信号转换为声波。扬声器可以是传统的薄膜扬声器，也可以是压电陶瓷扬声器。当扬声器是压电陶瓷扬声器时，不仅可以将电信号转换为人类可听见的声波，也可以将电信号转换为人类听不见的声波以进行测距等用途。在一些实施例中，音频电路307还可以包括耳机插孔。
定位组件308用于定位显示终端300的当前地理位置，以实现导航或LBS(Location Based Service，基于位置的服务)。定位组件308可以是基于美国的GPS(Global Positioning System，全球定位系统)、中国的北斗系统或俄罗斯的伽利略系统的定位组件。
电源309用于为显示终端300中的各个组件进行供电。电源309可以是交 流电、直流电、一次性电池或可充电电池。当电源309包括可充电电池时，该可充电电池可以是有线充电电池或无线充电电池。有线充电电池是通过有线线路充电的电池，无线充电电池是通过无线线圈充电的电池。该可充电电池还可以用于支持快充技术。
在一些实施例中，显示终端300还包括有一个或多个传感器510。该一个或多个传感器510包括但不限于：加速度传感器511、陀螺仪传感器512、压力传感器513、指纹传感器514、光学传感器515以及接近传感器516。
加速度传感器511可以检测以显示终端300建立的坐标系的三个坐标轴上的加速度大小。比如，加速度传感器511可以用于检测重力加速度在三个坐标轴上的分量。处理器301可以根据加速度传感器511采集的重力加速度信号，控制触摸显示屏305以横向视图或纵向视图进行用户界面的显示。加速度传感器511还可以用于游戏或者用户的运动数据的采集。
陀螺仪传感器512可以检测显示终端300的机体方向及转动角度，陀螺仪传感器512可以与加速度传感器511协同采集用户对显示终端300的3D动作。处理器301根据陀螺仪传感器512采集的数据，可以实现如下功能：动作感应(比如根据用户的倾斜操作来改变UI)、拍摄时的图像稳定、游戏控制以及惯性导航。
压力传感器513可以设置在显示终端300的侧边框和/或触摸显示屏305的下层。当压力传感器513设置在显示终端300的侧边框时，可以检测用户对显示终端300的握持信号，由处理器301根据压力传感器513采集的握持信号进行左右手识别或快捷操作。当压力传感器513设置在触摸显示屏305的下层时，由处理器301根据用户对触摸显示屏305的压力操作，实现对UI界面上的可操作性控件进行控制。可操作性控件包括按钮控件、滚动条控件、图标控件、菜单控件中的至少一种。
指纹传感器514用于采集用户的指纹，由处理器301根据指纹传感器514采集到的指纹识别用户的身份，或者，由指纹传感器514根据采集到的指纹识别用户的身份。在识别出用户的身份为可信身份时，由处理器301授权该用户执行相关的敏感操作，该敏感操作包括解锁屏幕、查看加密信息、下载软件、支付及更改设置等。指纹传感器514可以被设置显示终端300的正面、背面或侧面。当显示终端300上设置有物理按键或厂商Logo时，指纹传感器514可以与物理按键或厂商Logo集成在一起。
光学传感器515用于采集环境光强度。在一个实施例中，处理器301可以根据光学传感器515采集的环境光强度，控制触摸显示屏305的显示亮度。具体地，当环境光强度较高时，调高触摸显示屏305的显示亮度；当环境光强度较低时，调低触摸显示屏305的显示亮度。在另一个实施例中，处理器301还可以根据光学传感器515采集的环境光强度，动态调整摄像头组件306的拍摄参数。
接近传感器516，也称距离传感器，通常设置在显示终端300的前面板。接近传感器516用于采集用户与显示终端300的正面之间的距离。在一个实施例中，当接近传感器516检测到用户与显示终端300的正面之间的距离逐渐变小时，由处理器301控制触摸显示屏305从亮屏状态切换为息屏状态；当接近传感器516检测到用户与显示终端300的正面之间的距离逐渐变大时，由处理器301控制触摸显示屏305从息屏状态切换为亮屏状态。
本领域技术人员可以理解，图7中示出的结构并不构成对显示终端300的限定，可以包括比图示更多或更少的组件，或者组合某些组件，或者采用不同的组件布置。
本公开实施例提供了一种计算机存储介质，当所述存储介质中的程序由处理器执行时，能够执行如方法侧实施例任一所述的伽马校正方法。
本领域普通技术人员可以理解实现上述实施例的全部或部分步骤可以通过硬件来完成，也可以通过程序来指令相关的硬件完成，所述的程序可以存储于一种计算机可读存储介质中，上述提到的存储介质可以是只读存储器，磁盘或光盘等。
以上所述仅为本公开的可选实施例，并不用以限制本公开，凡在本公开的构思和原则之内，所作的任何修改、等同替换、改进等，均应包含在本公开的保护范围之内。

Claims (20)

  1. 一种伽马校正方法，所述方法包括：
    获取第一显示面板的测量数据，所述测量数据包括待补偿的m个显示亮度以及与所述m个显示亮度对应的m组补偿参数，所述m为正整数；
    分别采用所述m组补偿参数，在对应的显示亮度下对第二显示面板进行补偿；
    其中，所述第二显示面板与所述第一显示面板的结构和材料均相同。
  2. 根据权利要求1所述的方法，其中，所述获取第一显示面板的测量数据，包括：
    获取所述第一显示面板在第一显示亮度下所有灰阶绑点的灰阶亮度值，所述第一显示亮度为所述m个显示亮度中的任一显示亮度；
    获取所述所有灰阶绑点中，实际灰阶亮度值与对应的标准灰阶亮度值的差值大于差值阈值的所有目标灰阶绑点；
    根据所述所有目标灰阶绑点的灰阶以及对应的标准灰阶亮度值，生成所述第一显示亮度对应的补偿参数。
  3. 根据权利要求2所述的方法，其中，所述根据所述所有目标灰阶绑点的灰阶以及对应的标准灰阶亮度值，生成所述第一显示亮度对应的补偿参数，包括：
    获取所述所有目标灰阶绑点中的任意两个目标灰阶绑点；
    采用所述任意两个目标灰阶绑点的灰阶以及对应的标准灰阶亮度值，根据校正公式确定补偿倍率和补偿量，所述校正公式为：Z＝X*G+offset，X表示所述补偿倍率，offset表示所述补偿量，G表示目标灰阶绑点的灰阶，Z表示所述目标灰阶绑点对应的标准灰阶亮度值；
    当每个所述目标灰阶绑点采用所述补偿倍率和所述补偿量补偿后的目标灰阶亮度值，与对应的标准灰阶亮度值的差值均不大于差值阈值时，将所述补偿倍率和所述补偿量确定为所述第一显示亮度对应的补偿参数。
  4. 根据权利要求2或3所述的方法，其中，所述测量数据还包括所述第一 显示亮度下的所有目标灰阶绑点的灰阶，所述分别采用所述m组补偿参数，在对应的显示亮度下对第二显示面板进行补偿，包括：
    采用所述第一显示亮度对应的补偿参数，对所述第二显示面板在所述第一显示亮度下的每个所述目标灰阶绑点分别进行补偿。
  5. 根据权利要求4所述的方法，其中，所述补偿参数包括补偿倍率和补偿量，所述采用所述第一显示亮度对应的补偿参数，对所述第二显示面板在所述第一显示亮度下的每个所述目标灰阶绑点分别进行补偿，包括：
    基于每个所述目标灰阶绑点的灰阶，采用补偿公式分别对所述第二显示面板在所述第一显示亮度下的每个所述目标灰阶绑点进行补偿；
    其中，所述补偿公式为：Y＝X*G+offset，X表示所述补偿倍率，offset表示所述补偿量，G表示目标灰阶绑点的灰阶，Y表示所述目标灰阶绑点经过补偿后的灰阶亮度值。
  6. 根据权利要求1至5任一所述的方法，其中，所述获取第一显示面板的测量数据，包括：
    根据所述第一显示面板在完成第二显示亮度下的伽马校正后的亮度数据，确定所述m个显示亮度，所述第二显示亮度不同于所述m个显示亮度；
    所述分别采用所述m组补偿参数，在对应的显示亮度下对第二显示面板进行补偿，包括：
    在所述第二显示亮度下对所述第二显示面板进行伽马校正后，分别采用所述m组补偿参数，在对应的显示亮度下对所述第二显示面板进行补偿。
  7. 根据权利要求6所述的方法，其中，所述第二显示亮度为最大显示亮度。
  8. 根据权利要求6所述的方法，其中，所述亮度数据由光学探测仪对所述第一显示面板在各个显示亮度下进行亮度测量得到。
  9. 根据权利要求1至8任一所述的方法，其中，所述第二显示面板与所述第一显示面板满足以下一种关系：
    所述第二显示面板与所述第一显示面板属于同一生产批次；
    所述第二显示面板与所述第一显示面板为同一显示面板。
  10. 一种伽马校正装置，所述装置包括：
    获取模块，用于获取第一显示面板的测量数据，所述测量数据包括待补偿的m个显示亮度以及与所述m个显示亮度对应的m组补偿参数，所述m为正整数；
    补偿模块，用于分别采用所述m组补偿参数，在对应的显示亮度下对第二显示面板进行补偿；
    其中，所述第二显示面板与所述第一显示面板的结构和材料均相同。
  11. 根据权利要求10所述的装置，其中，所述获取模块，包括：
    第一获取子模块，用于获取所述第一显示面板在第一显示亮度下所有灰阶绑点的灰阶亮度值，所述第一显示亮度为所述m个显示亮度中的任一显示亮度；
    第二获取子模块，用于获取所述所有灰阶绑点中，实际灰阶亮度值与对应的标准灰阶亮度值的差值大于差值阈值的所有目标灰阶绑点；
    生成子模块，用于根据所述所有目标灰阶绑点的灰阶以及对应的标准灰阶亮度值，生成所述第一显示亮度对应的补偿参数。
  12. 根据权利要求11所述的装置，其中，所述生成子模块，用于：
    获取所述所有目标灰阶绑点中的任意两个目标灰阶绑点；
    采用所述任意两个目标灰阶绑点的灰阶以及对应的标准灰阶亮度值，根据校正公式确定补偿倍率和补偿量，所述校正公式为：Z＝X*G+offset，X表示所述补偿倍率，offset表示所述补偿量，G表示目标灰阶绑点的灰阶，Z表示所述目标灰阶绑点对应的标准灰阶亮度值；
    当每个所述目标灰阶绑点采用所述补偿倍率和所述补偿量补偿后的目标灰阶亮度值，与对应的标准灰阶亮度值的差值均不大于差值阈值时，将所述补偿倍率和所述补偿量确定为所述第一显示亮度对应的补偿参数。
  13. 根据权利要求11或12所述的装置，其中，所述测量数据还包括所述 第一显示亮度下的所有目标灰阶绑点的灰阶，所述补偿模块，用于：
    采用所述第一显示亮度对应的补偿参数，对所述第二显示面板在所述第一显示亮度下的每个所述目标灰阶绑点分别进行补偿。
  14. 根据权利要求13所述的装置，其中，所述补偿参数包括补偿倍率和补偿量，所述补偿模块，还用于：
    基于每个所述目标灰阶绑点的灰阶，采用补偿公式分别对所述第二显示面板在所述第一显示亮度下的每个所述目标灰阶绑点进行补偿；
    其中，所述补偿公式为：Y＝X*G+offset，X表示所述补偿倍率，offset表示所述补偿量，G表示目标灰阶绑点的灰阶，Y表示所述目标灰阶绑点经过补偿后的灰阶亮度值。
  15. 根据权利要求10至14任一所述的装置，其中，所述获取模块，用于：
    根据所述第一显示面板在完成第二显示亮度下的伽马校正后的亮度数据，确定所述m个显示亮度，所述第二显示亮度不同于所述m个显示亮度；
    所述补偿模块，用于：
    在所述第二显示亮度下对所述第二显示面板进行伽马校正后，分别采用所述m组补偿参数，在对应的显示亮度下对所述第二显示面板进行补偿。
  16. 根据权利要求15所述的装置，其中，所述第二显示亮度为最大显示亮度。
  17. 根据权利要求15所述的装置，其中，所述亮度数据由光学探测仪对所述第一显示面板在各个显示亮度下进行亮度测量得到。
  18. 一种显示装置，所述显示装置包括如权利要求10至17任一所述的伽马校正装置。
  19. 一种伽马校正装置，包括：处理器和存储器，
    其中，
    所述存储器，用于存储计算机程序；
    所述处理器，用于执行所述存储器上所存储的计算机程序，实现权利要求1至9任一所述的伽马校正方法。
  20. 一种计算机存储介质，当所述存储介质中的程序由处理器执行时，能够执行权利要求1至9任一所述的伽马校正方法。
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