WO2019015313A1 - 色偏补偿方法、色偏补偿系统和显示面板 - Google Patents

色偏补偿方法、色偏补偿系统和显示面板 Download PDF

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Publication number
WO2019015313A1
WO2019015313A1 PCT/CN2018/075957 CN2018075957W WO2019015313A1 WO 2019015313 A1 WO2019015313 A1 WO 2019015313A1 CN 2018075957 W CN2018075957 W CN 2018075957W WO 2019015313 A1 WO2019015313 A1 WO 2019015313A1
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Prior art keywords
display panel
display
display time
voltage
time threshold
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PCT/CN2018/075957
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English (en)
French (fr)
Inventor
常小幻
兰传艳
喻勇
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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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Application filed by 京东方科技集团股份有限公司, 成都京东方光电科技有限公司 filed Critical 京东方科技集团股份有限公司
Priority to US16/080,137 priority Critical patent/US11580891B2/en
Publication of WO2019015313A1 publication Critical patent/WO2019015313A1/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
    • G09G3/2003—Display of colours
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
    • G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
    • G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
    • G09G3/3225—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
    • G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
    • G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
    • 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
    • G09G2320/0242—Compensation of deficiencies in the appearance of colours
    • 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
    • G09G2320/0285—Improving the quality of display appearance using tables for spatial correction of display data
    • 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
    • G09G2320/04—Maintaining the quality of display appearance
    • G09G2320/043—Preventing or counteracting the effects of ageing
    • 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
    • G09G2320/04—Maintaining the quality of display appearance
    • G09G2320/043—Preventing or counteracting the effects of ageing
    • G09G2320/045—Compensation of drifts in the characteristics of light emitting or modulating elements
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/04—Maintaining the quality of display appearance
    • G09G2320/043—Preventing or counteracting the effects of ageing
    • G09G2320/048—Preventing or counteracting the effects of ageing using evaluation of the usage time
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/06—Adjustment of display parameters
    • G09G2320/0666—Adjustment of display parameters for control of colour parameters, e.g. colour temperature
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/06—Adjustment of display parameters
    • G09G2320/0673—Adjustment of display parameters for control of gamma adjustment, e.g. selecting another gamma curve
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
    • G09G2330/12—Test circuits or failure detection circuits included in a display system, as permanent part thereof
    • 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

  • Embodiments of the present disclosure relate to a color shift compensation method, a color shift compensation system, and a display panel.
  • the AM-OLED organic light emitting diode (Active-matrix organic light emitting diode) has the characteristics of faster response, higher contrast, wider viewing angle and lower power consumption.
  • the AMOLED panel uses an organic material and self-lumineses, the organic material has a problem of lifetime decay and different material decay rates after long-term use.
  • the screen display may cause a longer use time due to the above problem, and the difference in RGB pixel attenuation of the organic material is larger, causing a problem of display color shift when displayed on the client side. Since the AMOLED product has been used for customer installation, it is impossible to re-inspect the display color shift in the factory.
  • the embodiment of the present disclosure provides a color shift compensation method, including: accumulating the actual display time of the display panel; determining whether the actual display time reaches a preset cumulative display time threshold; if the actual display time reaches the preset The display time threshold is accumulated, and the display panel display is driven according to the pre-stored adjusted adjustment voltage; if the actual display time does not reach the preset cumulative display time threshold, the current adjusted voltage is driven according to the pre-stored The display panel is displayed.
  • the compensated adjustment voltage includes a compensated gamma voltage and a reference voltage of the compensated gamma voltage, the current adjustment voltage including a current gamma voltage and the current gamma voltage Reference voltage.
  • the preset cumulative display time threshold includes a plurality of sub-thresholds
  • the compensated adjustment voltage includes a plurality of sets of voltages, each set of voltages includes a compensated gamma voltage and a reference voltage, and the plurality of sub-thresholds
  • the plurality of sets of voltages are in one-to-one correspondence.
  • the preset cumulative display time threshold is less than the service life of the display panel.
  • the color shift compensation method further includes: testing offset data of color coordinates of the display panel that changes with display time; determining the preset cumulative display time threshold according to the offset data of the color coordinates, And calculating the compensated adjustment voltage corresponding to the preset cumulative display time threshold of the display panel; storing the preset cumulative display time threshold and the compensated adjustment voltage.
  • the preset cumulative display time threshold is a time when the display panel needs to compensate the current adjustment voltage.
  • the embodiment of the present disclosure further provides a color shift compensation system, including: a time accumulation module configured to accumulate an actual display time of the display panel; and a determination module configured to determine whether the actual display time reaches a preset cumulative time Displaying a time threshold; the driving module is configured to: if the actual display time reaches the preset cumulative display time threshold, driving the display panel display according to the pre-stored adjusted adjustment voltage; otherwise, according to the pre-stored current The adjustment voltage drives the display panel display.
  • a time accumulation module configured to accumulate an actual display time of the display panel
  • a determination module configured to determine whether the actual display time reaches a preset cumulative time Displaying a time threshold
  • the driving module is configured to: if the actual display time reaches the preset cumulative display time threshold, driving the display panel display according to the pre-stored adjusted adjustment voltage; otherwise, according to the pre-stored current
  • the adjustment voltage drives the display panel display.
  • the compensated adjustment voltage includes a compensated gamma voltage and a reference voltage of the compensated gamma voltage, the current adjustment voltage including a current gamma voltage and the current gamma voltage Reference voltage.
  • the color shift compensation system further includes a storage module configured to store the preset cumulative display time threshold and the compensated adjustment voltage.
  • the preset cumulative display time threshold includes a plurality of sub-thresholds
  • the compensated adjustment voltage includes a plurality of sets of voltages, each set of voltages includes a compensated gamma voltage and a reference voltage, and the plurality of sub-thresholds
  • the plurality of sets of voltages are in one-to-one correspondence.
  • the preset cumulative display time threshold is less than the service life of the display panel.
  • the method further includes: a test module configured to test offset data of the color coordinate of the display panel as a function of display time; and a determination calculation module configured to be biased according to a color coordinate of the display panel that varies with display time And shifting the data, determining the preset cumulative display time threshold, and calculating the compensated adjustment voltage corresponding to the preset cumulative display time threshold of the display panel.
  • a test module configured to test offset data of the color coordinate of the display panel as a function of display time
  • a determination calculation module configured to be biased according to a color coordinate of the display panel that varies with display time And shifting the data, determining the preset cumulative display time threshold, and calculating the compensated adjustment voltage corresponding to the preset cumulative display time threshold of the display panel.
  • the preset cumulative display time threshold is a time when the display panel needs to compensate the current adjustment voltage.
  • Embodiments of the present disclosure also provide a display panel including the above-described color shift compensation system.
  • FIG. 1 is a flowchart of a color shift compensation method according to an embodiment of the present disclosure
  • FIG. 2 is another flowchart of a color shift compensation method according to an embodiment of the present disclosure
  • Figure 3 is a color coordinate offset data curve of the display panel as a function of actual display time
  • FIG. 4 is a schematic block diagram of a color shift compensation system according to an embodiment of the present disclosure.
  • the color shift compensation method determines whether the actual display time of the display panel reaches a preset cumulative display time threshold, and compensates the GAMMA voltage and the reference voltage displayed on the display panel by the determination result. Therefore, it is possible to compensate for the display color shift caused by the lifetime degradation of the pixel material as the actual display time increases, thereby improving the display effect of the display panel, and at the same time, relatively extending the display life of the display panel.
  • the embodiment of the present disclosure provides a color shift compensation method, as shown in FIG. 1 , including:
  • Step S104 Accumulate the actual display time of the display panel.
  • the display panel is an organic electroluminescence display panel.
  • the organic electroluminescent display panel is displayed by self-luminescence of an organic material, and the organic material may have a lifetime decay problem after long-term use, and different organic materials which are formed into different color pixels in the display panel are different in attenuation degree with the display time.
  • the display panel causes different degrees of display color shift depending on the length of the actual display time.
  • Step S105 Determine whether the actual display time reaches a preset cumulative display time threshold.
  • the preset cumulative display time threshold is the time at which the display panel needs to compensate for the current adjustment voltage (eg, the current gamma (GAMMA) voltage and its reference voltage). That is, when the actual display time of the display panel reaches the preset cumulative display time threshold, the display panel has a certain degree of display color shift, so when the preset cumulative display time threshold is reached, the display panel needs to be The current GAMMA voltage and its reference voltage are compensated.
  • the setting of the preset cumulative display time threshold may be specifically determined according to the user's acceptance degree of the color deviation of the display panel.
  • the display color shift of the display panel reaches 20% to 30%
  • the general user may feel that the color deviation degree needs to be compensated, then the corresponding actual display time at this time is set as the cumulative display time threshold; when the actual display time is reached
  • the display color shift is compensated, that is, the display panel is driven according to the pre-stored compensated GAMMA voltage and its reference voltage.
  • the display color shift is compensated, that is, the display panel is driven according to the pre-stored compensated GAMMA voltage and its reference voltage.
  • the corresponding actual display time at this time may be set as the cumulative display time threshold; when the actual display time reaches the preset cumulative When the time threshold is displayed, the display color shift is compensated.
  • the present disclosure is not limited to the manner of determining the degree of color shift and the corresponding cumulative display time.
  • a preset cumulative display time threshold may correspond to one display color shift range, or may correspond to one display color shift value.
  • the preset cumulative display time threshold is less than the service life of the display panel. That is, the color shift compensation method compensates the color shift of the display panel within the service life of the display panel, thereby enabling the display panel to be better displayed during its useful life.
  • step S106 is performed: driving the display panel according to the pre-stored adjusted adjustment voltage (eg, the compensated adjustment voltage includes the compensated GAMMA voltage and its reference voltage) display.
  • the pre-stored adjusted adjustment voltage eg, the compensated adjustment voltage includes the compensated GAMMA voltage and its reference voltage
  • the display panel can be adjusted in color shift, that is, by correcting the GAMMA voltage, effective adjustment of the display color shift can be realized.
  • the reference voltage of the GAMMA voltage is used as the reference voltage for the adjustment of the GAMMA voltage.
  • the GAMMA voltage and its reference voltage are simultaneously changed during the entire adjustment process to achieve the adjustment of the pixel driving voltage, thereby realizing the color shift of the display panel. Adjustment.
  • the preset cumulative display time threshold includes a plurality of sub-thresholds.
  • the compensated adjustment voltage includes a plurality of sets of voltages, each set of voltages includes a compensated gamma voltage and a reference voltage, and the plurality of sub-thresholds are in one-to-one correspondence with the plurality of sets of voltages.
  • a plurality of preset sub-thresholds of the cumulative display time threshold can be set within the service life of the display panel, thereby achieving multiple display color shift compensation for the display panel during the service life, thereby not only making the display panel It displays well throughout its useful life and extends the display life of the display panel relatively. For example, if the display panel has a service life of 10,000 hours, you can set three sub-thresholds for the preset cumulative display time threshold: 3500 hours, 5000 hours, and 7000 hours.
  • the pre-stored compensated GAMMA voltage and its reference voltage comprise a plurality of groups
  • the sub-threshold of the preset cumulative display time threshold corresponds to the compensated GAMMA voltage and its reference voltage. That is, a sub-threshold of a preset cumulative display time threshold corresponds to a set of compensated GAMMA voltages and their reference voltages. Because the actual display time of the display panel is different, the degree of color shift is also different, so the setting of the preset display time thresholds of multiple presets enables the display panel to display different color shifts according to different actual display times. The phased compensation is performed, thereby improving the display effect of the display panel at different stages, and simultaneously extending the display life of the display panel.
  • the preset cumulative display time threshold can also be set to only one. Accordingly, only one set of the compensated GAMMA voltage and its reference voltage is set.
  • step S107 is performed to drive the display panel display according to the pre-stored current adjustment voltage (eg, the current adjustment voltage includes the current GAMMA voltage and its reference voltage).
  • the current adjustment voltage includes the current GAMMA voltage and its reference voltage.
  • the display color shift of the display panel is not necessary to be compensated.
  • the display panel is driven according to the current GAMMA voltage and its reference voltage. Display, this will ensure the current display of the display panel.
  • the color shift compensation method determines whether the actual display time of the display panel reaches a preset cumulative display time threshold, and compensates the GAMMA voltage and the reference voltage displayed on the driving display panel according to the determination result, thereby being able to compensate the actual display panel
  • the display time is increased by the display color shift caused by the decay of the life of the pixel material, thereby improving the display effect of the display panel, and at the same time, the display life of the display panel can be relatively extended.
  • the color shift compensation method further includes: step S101: testing offset data of color coordinates of the display panel as the display time changes.
  • Step S102 Determine a preset cumulative display time threshold (or each sub-threshold value) according to the offset data of the color coordinate, and calculate, according to the preset cumulative display time threshold (or each sub-threshold) of the display panel.
  • the compensated GAMMA voltage and its reference voltage are the preset cumulative display time threshold (or each sub-threshold value) according to the offset data of the color coordinate.
  • the value of the color coordinate offset of the batch display panel is obtained according to the color coordinate offset data curve in FIG. 3, and then the batch can be adjusted at different cumulative display times by simulating the color coordinates in this case.
  • the display panel drives the GAMMA voltage and its reference voltage, so that the color coordinates of the display panel which are offset by the accumulation of the display time are restored to the factory standard target value, thereby improving the accumulation of the display panel with the display time.
  • the display color shift increases the display effect of the display panel.
  • the preset cumulative display time threshold (or each sub-threshold) can be accurately determined before the color-offset compensation, and the compensated GAMMA voltage and its reference voltage are accurately calculated. Therefore, it is convenient to subsequently call these parameters in the color shift compensation process, thereby realizing timely compensation of the display panel color shift.
  • Step S103 Store the preset cumulative display time threshold and the compensated GAMMA voltage and its reference voltage.
  • the preset cumulative display time threshold and the compensated GAMMA voltage and the reference voltage thereof are stored in a register of the display panel driving circuit, thereby facilitating conditional judgment and driving of the display panel during display. transfer.
  • step S101 and step S102 can also be performed in real time, that is, real-time test offset data of the color coordinate of the display panel changing with the display time; according to the color coordinate offset data, real-time calculation The GAMMA voltage and its reference voltage displayed by the driving display panel capable of compensating for the color coordinate offset; and then the GAMMA voltage and its reference voltage are provided to the driving circuit in real time, thereby realizing real-time compensation for the color coordinate offset of the display panel.
  • the color shift compensation method further includes: step S104, accumulating the actual display time of the display panel; and step S105: determining whether the actual display time reaches a preset cumulative display time threshold. If the actual display time reaches the preset cumulative display time threshold, step S106' is performed: driving the display panel display according to the pre-stored compensated GAMMA voltage and its reference voltage. If the actual display time does not reach the preset cumulative display time threshold, step S107' is performed: driving the display panel display according to the pre-stored current GAMMA voltage and its reference voltage.
  • the color shift compensation method determines whether the actual display time of the display panel reaches a preset cumulative display time threshold, and compensates the GAMMA voltage and the reference voltage displayed on the driving display panel according to the determination result, and can compensate the
  • the display panel has a display color shift caused by the decay of the life of the pixel material as the actual display time increases, thereby improving the display effect of the display panel, and at the same time, relatively extending the display life of the display panel.
  • the embodiment of the present disclosure further provides a color shift compensation system, as shown in FIG. 4, comprising: a time accumulation module 1 configured to accumulate an actual display time of the display panel; and a determination module 2 configured to determine whether the actual display time is reached.
  • the preset cumulative display time threshold; the driving module 3 is configured to adjust the adjusted voltage according to the pre-stored compensation voltage when the actual display time reaches the preset cumulative display time threshold (for example, the compensated adjustment voltage includes the compensated The GAMMA voltage and its reference voltage drive the display panel display; otherwise, the display panel display is driven based on the pre-stored current adjustment voltage (eg, the current adjustment voltage includes the current GAMMA voltage and its reference voltage).
  • the time accumulation module 1 employs a timer.
  • the preset cumulative display time threshold and the compensated GAMMA voltage and its reference voltage are pre-stored in the registers of the driver circuit.
  • the preset cumulative display time threshold is the time at which the display panel needs to compensate for the current GAMMA voltage and its reference voltage.
  • the color shift compensation system can compensate the GAMMA voltage and the reference voltage displayed on the driving display panel according to the determination result by setting the judging module 2 and the driving module 3, thereby compensating for the pixel material of the display panel as the actual display time increases.
  • the display color shift caused by the decay of the life improves the display effect of the display panel, and at the same time, the display life of the display panel can be relatively extended.
  • the color shift compensation system further includes a storage module 4 configured to store the accumulated display time threshold and the compensated adjustment voltage.
  • the cumulative display time threshold includes a plurality of sub-thresholds
  • the compensated adjustment voltage includes a plurality of sets of voltages.
  • the storage module 4 is configured to store a plurality of sub-thresholds and a plurality of sets of voltages of the preset cumulative display time threshold (each set of voltages includes a compensated GAMMA voltage and its reference voltage).
  • a sub-threshold of a preset cumulative display time threshold corresponds to a set of voltages (ie, a compensated GAMMA voltage and its reference voltage).
  • the storage of the sub-thresholds of the plurality of preset cumulative display time thresholds enables multiple display color shift compensation for the display panel during the service life period, thereby not only enabling the display panel to display well over its entire service life. And can also extend the display life of the display panel relatively.
  • the storage of the compensated GAMMA voltage and its reference voltage enables the display panel to compensate the display color shifts of different degrees according to different actual display times, thereby improving the display panel at different stages. The display effect is also relatively extended by the display panel.
  • the preset cumulative display time threshold is less than the service life of the display panel. That is, the color shift compensation system compensates for the color shift during the life of the display panel, thereby enabling the display panel to be better displayed during its useful life.
  • the color shift compensation system further includes: a test module 5 configured to test offset data of color coordinates of the display panel that varies with display time.
  • the color shift compensation system further includes: a determination calculation module 6 configured to determine a preset cumulative display time threshold (or each sub-threshold) according to the offset data of the color coordinate, and calculate a preset display of the display panel and the preset The compensated GAMMA voltage and its reference voltage corresponding to the time threshold (or each sub-threshold).
  • the preset cumulative display time threshold can be accurately determined before the color shift compensation, and the compensated GAMMA voltage and its reference voltage can be accurately calculated, thereby facilitating Subsequent calls are made to these parameters during the color shift compensation process, thereby realizing timely compensation for the display panel display color shift.
  • the color shift compensation system provided by the embodiment of the present disclosure can compensate the GAMMA voltage and the reference voltage displayed by the driving display panel according to the judgment result by setting the judgment module and the driving module, thereby compensating for the growth of the display panel with the actual display time.
  • the display color shift caused by the decay of the life of the pixel material improves the display effect of the display panel, and at the same time, the display life of the display panel can be relatively extended.
  • the color shift compensation system may further include one or more processors and one or more memories.
  • the processor can process the data signals and can include various computing structures, such as a Complex Instruction Set Computer (CISC) architecture, a Structured Reduced Instruction Set Computer (RISC) architecture, or a structure that implements a combination of multiple instruction sets.
  • the memory can hold instructions and/or data executed by the processor. These instructions and/or data may include code for implementing some or all of the functions of one or more of the devices described in this application.
  • the memory includes dynamic random access memory (DRAM), static random access memory (SRAM), flash memory, optical memory, or other memory well known to those skilled in the art.
  • each module (eg, a test module, a determination calculation module, a storage module, a time accumulation module, a determination module, and a drive module) includes code and programs stored in the memory; the processor can execute the code and program to Implement some or all of the functions described above.
  • each module may be a dedicated hardware device for implementing some or all of the functions described above.
  • each module can be a circuit board or a combination of multiple circuit boards for implementing the functions described above.
  • the modules can be integrated into one integrated circuit chip.
  • Embodiments of the present disclosure also provide a display panel including the above-described color shift compensation system.
  • the display color shift caused by the lifetime degradation of the pixel material with the increase of the actual display time is improved, thereby improving the display effect of the display panel, and at the same time, the display panel is relatively extended.
  • the display life is improved.
  • the display panel provided by the embodiment of the present disclosure may be any product or component having an display function such as an OLED panel, an OLED TV, a liquid crystal panel, a liquid crystal television, a display, a mobile phone, a navigator, or the like.

Abstract

一种色偏补偿方法、色偏补偿系统和显示面板。该色偏补偿方法包括：累计显示面板的实际显示时间(S104)；判断实际显示时间是否达到预设的累计显示时间阈值(S105)；如果是，则根据预存的经补偿后的调整电压驱动显示面板显示(S106)；如果否，则根据预存的当前的调整电压驱动显示面板显示(S107)。该色偏补偿方法通过判断显示面板的实际显示时间是否达到预设的累计显示时间阈值，并根据判断结果对驱动显示面板显示的伽玛电压及其参考电压进行补偿，能够补偿该显示面板随实际显示时间的增长其像素材料的寿命衰减所导致的显示色偏，从而改善该显示面板的显示效果，同时，还能相对延长该显示面板的显示寿命。

Description

色偏补偿方法、色偏补偿系统和显示面板
本公开要求于2017年7月21日递交的中国专利申请第201710601925.5号的优先权，在此全文引用上述中国专利申请公开的内容以作为本公开的一部分。
技术领域
本公开实施例涉及一种色偏补偿方法、色偏补偿系统和显示面板。
背景技术
相比于传统的液晶面板，AMOLED面板(Active-matrix organic light emitting diode有源矩阵有机发光二极体面板)具有反应速度较快、对比度更高、视角更广且功耗更低等特点。但是由于AMOLED面板使用有机材料且自发光，有机材料长期使用之后存在寿命衰减且不同材料衰减速率不同等问题。在显示驱动信号不改变的情况下，画面显示会因为上述问题的存在导致使用时间越长，有机材料的RGB像素衰减差异越大，在客户端显示时造成显示色偏的问题。由于AMOLED产品已用于客户装机，不可能取回厂内重新对显示色偏进行调整。
发明内容
本公开实施例提供一种色偏补偿方法，包括：累计显示面板的实际显示时间；判断所述实际显示时间是否达到预设的累计显示时间阈值；如果所述实际显示时间达到所述预设的累计显示时间阈值，则根据预存的经补偿后的调整电压驱动所述显示面板显示；如果所述实际显示时间没有达到所述预设的累计显示时间阈值，则根据预存的当前的调整电压驱动所述显示面板显示。
例如，所述补偿后的调整电压包括补偿后的伽玛电压以及所述补偿后的伽玛电压的参考电压，所述当前的调整电压包括当前的伽玛电压及所述当前的伽玛电压的参考电压。
例如，所述预设的累计显示时间阈值包括多个子阈值；所述补偿后的 调整电压包括多组电压，每组电压包括经补偿后的伽玛电压及参考电压，所述多个子阈值与所述多组电压一一对应。
例如，所述预设的累计显示时间阈值小于所述显示面板的使用寿命。
例如，所述色偏补偿方法还包括：测试所述显示面板的随显示时间变化的色坐标的偏移数据；根据所述色坐标的偏移数据，确定所述预设的累计显示时间阈值，并计算所述显示面板的与所述预设的累计显示时间阈值所对应的所述经补偿后的调整电压；存储所述预设的累计显示时间阈值和所述经补偿后的调整电压。
例如，所述预设的累计显示时间阈值为所述显示面板需要对所述当前的调整电压进行补偿的时间。
本公开实施例还提供一种色偏补偿系统，包括：时间累计模块，被配置为累计所述显示面板的实际显示时间；判断模块，被配置为判断所述实际显示时间是否达到预设的累计显示时间阈值；驱动模块，被配置为如果所述实际显示时间达到所述预设的累计显示时间阈值，则根据预存的补偿后的调整电压驱动所述显示面板显示，否则，则根据预存的当前的调整电压驱动所述显示面板显示。
例如，所述补偿后的调整电压包括补偿后的伽玛电压以及所述补偿后的伽玛电压的参考电压，所述当前的调整电压包括当前的伽玛电压及所述当前的伽玛电压的参考电压。
例如，所述色偏补偿系统还包括存储模块，被配置为存储所述预设的累计显示时间阈值和所述补偿后的调整电压。
例如，所述预设的累计显示时间阈值包括多个子阈值；所述补偿后的调整电压包括多组电压，每组电压包括经补偿后的伽玛电压及参考电压，所述多个子阈值与所述多组电压一一对应。
例如，所述预设的累计显示时间阈值小于所述显示面板的使用寿命。
例如，还包括：测试模块，被配置为测试所述显示面板随显示时间变化其色坐标的偏移数据；确定计算模块，被配置为根据所述显示面板的随显示时间变化的色坐标的偏移数据，确定所述预设的累计显示时间阈值，并计算所述显示面板的与所述预设的累计显示时间阈值所对应的所述经补偿后的调整电压。
例如，所述预设的累计显示时间阈值为所述显示面板需要对所述当前 的调整电压进行补偿的时间。
本公开实施例还提供一种显示面板，包括上述色偏补偿系统。
附图说明
为了更清楚地说明本公开实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本公开的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
图1为本公开实施例提供的一种色偏补偿方法的流程图；
图2为本公开实施例提供的一种色偏补偿方法的另一流程图；
图3为显示面板随实际显示时间变化的色坐标偏移数据曲线；以及
图4为本公开实施例提供的一种色偏补偿系统的原理框图。
附图标记说明：
1.时间累计模块；2.判断模块；3.驱动模块；4.存储模块；5.测试模块；6.确定计算模块。
具体实施方式
下面将结合本公开实施例中的附图，对本公开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公开一部分实施例，而不是全部的实施例。基于本公开中的实施例，本领域普通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，都属于本公开保护的范围。
为使本领域的技术人员更好地理解本公开的技术方案，下面结合附图和具体实施方式对本公开所提供的一种色偏补偿方法、色偏补偿系统和显示面板作进一步详细描述。
该色偏补偿方法判断显示面板的实际显示时间是否达到预设的累计显示时间阈值，并根据判断结果对驱动显示面板显示的GAMMA电压及其参考电压进行补偿。因此，能够补偿该显示面板随实际显示时间的增长其像素材料的寿命衰减所导致的显示色偏，从而改善该显示面板的显示效果，同时，还能相对延长该显示面板的显示寿命。
本公开实施例提供一种色偏补偿方法，如图1所示，包括：
步骤S104：累计显示面板的实际显示时间。
例如，该显示面板为有机电致发光显示面板。有机电致发光显示面板使用有机材料自发光进行显示，有机材料在长期使用之后会存在寿命衰减问题，而且，制备形成显示面板中不同颜色像素的不同有机材料随显示时间的寿命衰减程度不同，从而导致显示面板随实际显示时间的长短不同而产生不同程度的显示色偏。
步骤S105：判断实际显示时间是否达到预设的累计显示时间阈值。
该步骤中，预设的累计显示时间阈值为显示面板需要对当前的调整电压(例如，当前的伽玛(GAMMA)电压及其参考电压)进行补偿的时间。即，当显示面板的实际显示时间达到预设的累计显示时间阈值时，显示面板已经出现了一定程度的显示色偏，所以，在达到该预设的累计显示时间阈值时，需要对显示面板的当前的GAMMA电压及其参考电压进行补偿。预设的累计显示时间阈值的设置具体可以根据用户对显示面板色偏的接受程度确定。例如：当显示面板的显示色偏达到20％～30％时，一般用户可能感觉该色偏程度需要进行补偿，则将此时对应的实际显示时间设置为累计显示时间阈值；当实际显示时间达到该预设的累计显示时间阈值时，对显示色偏进行补偿，即根据预存的经补偿后的GAMMA电压及其参考电压驱动显示面板显示。又例如，有一些特定需求的用户，对于显示色偏达到10％左右即认为需要补偿，也可以将此时对应的实际显示时间设置为累计显示时间阈值；当实际显示时间达到该预设的累计显示时间阈值时，对显示色偏进行补偿。对于显示色偏的程度以及对应的累积显示时间的确定方式本公开不做限定。
需要说明的是，一个预设的累计显示时间阈值可以对应一个显示色偏范围，也可以对应一个显示色偏值。
本公开实施例中，预设的累计显示时间阈值小于显示面板的使用寿命。即该色偏补偿方法是在该显示面板的使用寿命期限内对其色偏进行补偿，从而能够使该显示面板在其使用寿命期限内能够更好地进行显示。
如果实际显示时间达到该预设的累计显示时间阈值，则执行步骤S106：根据预存的补偿后的调整电压(例如，补偿后的调整电压包括经补偿后的GAMMA电压及其参考电压)驱动显示面板显示。
例如，通过调整驱动显示面板中的像素进行显示的GAMMA电压可实现对显示面板显示色偏的调整，即通过对GAMMA电压进行补偿，能够实现对显示色偏的有效调整。GAMMA电压的参考电压用于在GAMMA电压调整时作为其调整的参考电压，GAMMA电压和其参考电压在整个调整过程中同时变化才能实现对像素驱动电压的调整，从而实现对显示面板显示色偏的调整。
本公开实施例中，例如，预设的累计显示时间阈值包括多个子阈值。所述补偿后的调整电压包括多组电压，每组电压包括经补偿后的伽玛电压及参考电压，所述多个子阈值与所述多组电压一一对应。如此设置，能够在显示面板的使用寿命期限内设置多个预设的累计显示时间阈值的子阈值，从而实现对显示面板在使用寿命期限内的多次显示色偏补偿，进而不仅使显示面板在其整个使用寿命期限内都能进行良好显示，而且还能相对地延长显示面板的显示寿命。例如：假设显示面板的使用寿命为1万小时，则可以为其设置三个预设的累计显示时间阈值的子阈值：如3500小时、5000小时和7000小时。
例如，预存的经补偿后的GAMMA电压及其参考电压包括多组，预设的累计显示时间阈值的子阈值与经补偿后的GAMMA电压及其参考电压一一对应。即一个预设的累计显示时间阈值的子阈值对应一组经补偿后的GAMMA电压及其参考电压。因为显示面板的实际显示时间长短不同，其色偏程度也不同，所以多个预设的累计显示时间阈值的设置，使该显示面板能根据其不同的实际显示时间对其不同程度的显示色偏进行分阶段补偿，从而提升了该显示面板在不同阶段的显示效果，同时还相对地延长了该显示面板的显示寿命。
当然，预设的累计显示时间阈值也可以只设置一个，相应地，经补偿后的GAMMA电压及其参考电压也只设置一组。
如果实际显示时间没有达到该预设的累计显示时间阈值，则执行步骤S107：根据预存的当前的调整电压(例如，当前的调整电压包括当前的GAMMA电压及其参考电压)驱动显示面板显示。
该步骤中，如果显示面板的实际显示时间还没有达到预设的累计显示时间阈值，即显示面板的显示色偏还没必要进行补偿，此时，根据当前的GAMMA电压及其参考电压驱动显示面板显示，如此即能确保显示面板在 当前的显示效果。
该色偏补偿方法判断显示面板的实际显示时间是否达到预设的累计显示时间阈值，并根据判断结果对驱动显示面板显示的GAMMA电压及其参考电压进行补偿，因此，能够补偿该显示面板随实际显示时间的增长其像素材料的寿命衰减所导致的显示色偏，从而改善该显示面板的显示效果，同时，还能相对延长该显示面板的显示寿命。
本公开另一实施例中，如图2所示，该色偏补偿方法还包括：步骤S101：随着显示时间的变化，测试显示面板的色坐标的偏移数据。
该步骤中，如在某一批次显示面板产出后取一定数量的产品进行加速老化试验，取得类似图3中的色坐标偏移数据，即该批显示面板的色坐标随显示时间的偏移情况。
步骤S102：根据所述色坐标的偏移数据，确定预设的累计显示时间阈值(或各子阈值)，并计算显示面板在所述预设的累计显示时间阈值(或各子阈值)所对应的经补偿后的GAMMA电压及其参考电压。
该步骤中，如根据图3中的色坐标偏移数据曲线取得该批显示面板的色坐标偏移的数值，然后可以通过模拟该情况下的色坐标，在不同的累计显示时间分别调整该批显示面板的驱动GAMMA电压及其参考电压，使显示面板的随显示时间的累计而产生偏移的色坐标恢复到出厂时的标准目标值，从而改善该批显示面板的随显示时间的累计所出现的显示色偏，提升显示面板的显示效果。
通过步骤S101-步骤S102，能够在色偏补偿之前预先对预设的累计显示时间阈值(或各子阈值)进行精确的确定，并对经补偿后的GAMMA电压及其参考电压进行精确的计算，从而便于后续在色偏补偿过程中对这些参数进行调用，进而实现对显示面板显示色偏的及时补偿。
步骤S103：存储该预设的累计显示时间阈值和经补偿后的GAMMA电压及其参考电压。
该步骤中，将该预设的累计显示时间阈值和经补偿后的GAMMA电压及其参考电压存储到显示面板驱动电路的寄存器中，从而便于该显示面板在显示过程中对其进行条件判断和驱动调用。
需要说明的是，在本公开实施例中，步骤S101和步骤S102也可以实时进行，即：实时测试显示面板随显示时间变化的色坐标的偏移数据；根 据该色坐标偏移数据，实时计算能够补偿该色坐标偏移的驱动显示面板显示的GAMMA电压及其参考电压；然后将该GAMMA电压及其参考电压实时提供给驱动电路，从而实现对显示面板色坐标偏移的实时补偿。
如图2所示，该色偏补偿方法还包括：步骤S104，累计显示面板的实际显示时间；步骤S105：判断实际显示时间是否达到预设的累计显示时间阈值。如果实际显示时间达到该预设的累计显示时间阈值，则执行步骤S106’：根据预存的经补偿后的GAMMA电压及其参考电压驱动显示面板显示。如果实际显示时间没有达到该预设的累计显示时间阈值，则执行步骤S107’：根据预存的当前的GAMMA电压及其参考电压驱动显示面板显示。
本公开实施例提供的色偏补偿方法，判断显示面板的实际显示时间是否达到预设的累计显示时间阈值，并根据判断结果对驱动显示面板显示的GAMMA电压及其参考电压进行补偿，能够补偿该显示面板随实际显示时间的增长其像素材料的寿命衰减所导致的显示色偏，从而改善该显示面板的显示效果，同时，还能相对延长该显示面板的显示寿命。
本公开实施例还提供一种色偏补偿系统，如图4所示，包括：时间累计模块1，被配置为累计显示面板的实际显示时间；判断模块2，被配置为判断实际显示时间是否达到预设的累计显示时间阈值；驱动模块3，被配置为在实际显示时间达到预设的累计显示时间阈值时，根据预存的补偿后的调整电压(例如，补偿后的调整电压包括经补偿后的GAMMA电压及其参考电压)驱动显示面板显示；否则，根据预存的当前的调整电压(例如，当前的调整电压包括当前的GAMMA电压及其参考电压)驱动显示面板显示。
例如，时间累计模块1采用计时器。预设的累计显示时间阈值和经补偿后的GAMMA电压及其参考电压均预存在驱动电路的寄存器中。预设的累计显示时间阈值为显示面板需要对当前的GAMMA电压及其参考电压进行补偿的时间。
该色偏补偿系统，通过设置判断模块2和驱动模块3，能根据判断结果对驱动显示面板显示的GAMMA电压及其参考电压进行补偿，从而补偿该显示面板随实际显示时间的增长其像素材料的寿命衰减所导致的显示色偏，进而改善该显示面板的显示效果，同时，还能相对延长该显示面板的显示寿命。
本公开实施例中，色偏补偿系统还包括存储模块4，被配置为存储所述累计显示时间阈值和所述补偿后的调整电压。
例如，累计显示时间阈值包括多个子阈值，所述补偿后的调整电压包括多组电压。所述存储模块4被配置为存储预设的累计显示时间阈值的多个子阈值和多组电压(每组电压包括一个经补偿后的GAMMA电压及其参考电压)。一个预设的累计显示时间阈值的子阈值对应于一组电压(即一个经补偿后的GAMMA电压及其参考电压)。多个预设的累计显示时间阈值的子阈值的存储，能够实现对显示面板在使用寿命期限内的多次显示色偏补偿，从而不仅使显示面板在其整个使用寿命期限内都能进行良好显示，而且还能相对地延长显示面板的显示寿命。多组经补偿后的GAMMA电压及其参考电压的存储，使该显示面板能根据其不同的实际显示时间对其不同程度的显示色偏进行分阶段补偿，从而提升了该显示面板在不同阶段的显示效果，同时还相对地延长了该显示面板的显示寿命。
本公开实施例中，预设的累计显示时间阈值小于显示面板的使用寿命。即该色偏补偿系统是在该显示面板的使用寿命期限内对其色偏进行补偿，从而能够使该显示面板在其使用寿命期限内能够更好地进行显示。
本公开实施例中，色偏补偿系统还包括：测试模块5，被配置为测试随显示时间变化的显示面板的色坐标的偏移数据。色偏补偿系统还包括：确定计算模块6，被配置为根据该色坐标的偏移数据，确定预设的累计显示时间阈值(或各子阈值)，并计算显示面板的与预设的累计显示时间阈值(或各子阈值)所对应的经补偿后的GAMMA电压及其参考电压。
通过设置测试模块5和确定计算模块6，能够在色偏补偿之前预先对预设的累计显示时间阈值进行精确的确定，并对经补偿后的GAMMA电压及其参考电压进行精确的计算，从而便于后续在色偏补偿过程中对这些参数进行调用，进而实现对显示面板显示色偏的及时补偿。
本公开实施例所提供的色偏补偿系统，通过设置判断模块和驱动模块，能根据判断结果对驱动显示面板显示的GAMMA电压及其参考电压进行补偿，从而补偿该显示面板随实际显示时间的增长其像素材料的寿命衰减所导致的显示色偏，进而改善该显示面板的显示效果，同时，还能相对延长该显示面板的显示寿命。
本公开实施例提供的色偏补偿系统还可以包括一个或多个处理器以及 一个或多个存储器。处理器可以处理数据信号，可以包括各种计算结构，例如复杂指令集计算机(CISC)结构、结构精简指令集计算机(RISC)结构或者一种实行多种指令集组合的结构。存储器可以保存处理器执行的指令和/或数据。这些指令和/或数据可以包括代码，用于实现本申请实施例描述的一个或多个装置的一些功能或全部功能。例如，存储器包括动态随机存取存储器(DRAM)、静态随机存取存储器(SRAM)、闪存(flash memory)、光存储器(optical memory)，或其他的本领域技术人员熟知的存储器。
在一些实施例中，各模块(例如，测试模块，确定计算模块、存储模块、时间累计模块、判断模块和驱动模块)包括存储在存储器中的代码和程序；处理器可以执行该代码和程序以实现如上所述的一些功能或全部功能。
在一些实施例中，各模块(例如，测试模块，确定计算模块、存储模块、时间累计模块、判断模块和驱动模块)可以是专用硬件器件，用来实现如上所述的一些或全部功能。例如，各模块可以是一个电路板或多个电路板的组合，用于实现如上所述的功能。或者，各模块可以集成到一个集成电路芯片中。
本公开实施例还提供一种显示面板，包括上述色偏补偿系统。
通过采用上述色偏补偿系统，改善了该显示面板随实际显示时间的增长其像素材料的寿命衰减所导致的显示色偏，从而改善该显示面板的显示效果，同时，还相对延长了该显示面板的显示寿命。
本公开实施例所提供的显示面板可以为OLED面板、OLED电视、液晶面板、液晶电视、显示器、手机、导航仪等任何具有显示功能的产品或部件。
可以理解的是，以上实施方式仅仅是为了说明本公开的原理而采用的示例性实施方式，然而本公开并不局限于此。对于本领域内的普通技术人员而言，在不脱离本公开的精神和实质的情况下，可以做出各种变型和改进，这些变型和改进也视为本公开的保护范围。本公开的保护范围应以所述权利要求的保护范围为准。

Claims (14)

  1. 一种色偏补偿方法，包括：
    累计显示面板的实际显示时间；
    判断所述实际显示时间是否达到预设的累计显示时间阈值；
    如果所述实际显示时间达到所述预设的累计显示时间阈值，则根据预存的补偿后的调整电压驱动所述显示面板显示；
    如果所述实际显示时间没有达到所述预设的累计显示时间阈值，则根据预存的当前的调整电压驱动所述显示面板显示。
  2. 根据权利要求1所述的色偏补偿方法，其中，所述补偿后的调整电压包括补偿后的伽玛电压以及所述补偿后的伽玛电压的参考电压，所述当前的调整电压包括当前的伽玛电压以及所述当前的伽玛电压的参考电压。
  3. 根据权利要求1所述的色偏补偿方法，其中，所述预设的累计显示时间阈值包括多个子阈值；所述补偿后的调整电压包括多组电压，每组电压包括经补偿后的伽玛电压及参考电压，所述多个子阈值与所述多组电压一一对应。
  4. 根据权利要求1-3任一项所述的色偏补偿方法，其中，所述预设的累计显示时间阈值小于所述显示面板的使用寿命。
  5. 根据权利要求1所述的色偏补偿方法，还包括：
    测试所述显示面板的随显示时间变化的色坐标的偏移数据；
    根据所述色坐标的偏移数据，确定所述预设的累计显示时间阈值，并计算所述显示面板的与所述预设的累计显示时间阈值所对应的所述经补偿后的调整电压；
    存储所述预设的累计显示时间阈值和所述经补偿后的调整电压。
  6. 根据权利要求5所述的色偏补偿方法，其中，所述预设的累计显示时间阈值为所述显示面板需要对所述当前的调整电压进行补偿的时间。
  7. 一种色偏补偿系统，包括：
    时间累计模块，被配置为累计显示面板的实际显示时间；
    判断模块，被配置为判断所述实际显示时间是否达到预设的累计显示时间阈值；以及
    驱动模块，被配置为如果所述实际显示时间达到所述预设的累计显示时间阈值，则根据预存的补偿后的调整电压驱动所述显示面板显示；否则，则根据预存的当前的调整电压驱动所述显示面板显示。
  8. 根据权利要求7所述的色偏补偿系统，其中，所述补偿后的调整电压包括补偿后的伽玛电压以及所述补偿后的伽玛电压的参考电压，所述当前的调整电压包括当前的伽玛电压及所述当前的伽玛电压的参考电压。
  9. 根据权利要求7或8所述的色偏补偿系统，还包括存储模块，被配置为存储所述预设的累计显示时间阈值和所述补偿后的调整电压。
  10. 根据权利要求7-9任一项所述的色偏补偿系统，所述预设的累计显示时间阈值包括多个子阈值；所述补偿后的调整电压包括多组电压，每组电压包括经补偿后的伽玛电压及参考电压，所述多个子阈值与所述多组电压一一对应。
  11. 根据权利要求7-10任一项所述的色偏补偿系统，其中，所述预设的累计显示时间阈值小于所述显示面板的使用寿命。
  12. 根据权利要求7所述的色偏补偿系统，还包括：
    测试模块，被配置为测试所述显示面板的随显示时间变化的色坐标的偏移数据；以及
    确定计算模块，被配置为根据所述显示面板的随显示时间变化的色坐标 的偏移数据，确定所述预设的累计显示时间阈值，并计算所述显示面板的与所述预设的累计显示时间阈值所对应的所述经补偿后的调整电压。
  13. 根据权利要求12所述的色偏补偿系统，其中，所述预设的累计显示时间阈值为所述显示面板需要对所述当前的调整电压进行补偿的时间。
  14. 一种显示面板，包括权利要求7-13任意一项所述的色偏补偿系统。
PCT/CN2018/075957 2017-07-21 2018-02-09 色偏补偿方法、色偏补偿系统和显示面板 WO2019015313A1 (zh)

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