CN112967676A - Display panel driving method, driving device and display device - Google Patents
Display panel driving method, driving device and display device Download PDFInfo
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- CN112967676A CN112967676A CN202110210060.6A CN202110210060A CN112967676A CN 112967676 A CN112967676 A CN 112967676A CN 202110210060 A CN202110210060 A CN 202110210060A CN 112967676 A CN112967676 A CN 112967676A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
- G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/06—Adjustment of display parameters
- G09G2320/0626—Adjustment of display parameters for control of overall brightness
Abstract
The embodiment of the invention discloses a display panel driving method, a display panel driving device and a display device. The driving method of the display panel comprises the following steps: acquiring brightness to be displayed of each pixel unit of a display panel; the pixel unit comprises at least three sub-pixels with different light-emitting colors; determining a brightness segment corresponding to the brightness to be displayed so as to determine a gamma value corresponding to the brightness to be displayed, wherein different brightness segments correspond to different gamma values; and determining the display gray scale of each sub-pixel included by the pixel unit according to the gamma value and the brightness to be displayed. The embodiment of the invention reduces the brightness deviation of the display panel and improves the display effect of the display panel.
Description
Technical Field
The embodiment of the invention relates to the technical field of display, in particular to a driving method and a driving device of a display panel and a display device.
Background
An Organic Light Emitting Diode (OLED) display panel is a self-luminous display panel, and compared with a Liquid Crystal Display (LCD) panel, the OLED display panel does not need a backlight source, so that the OLED display panel is thinner and lighter.
However, the conventional OLED display panel is prone to brightness deviation, which results in poor display effect of the OLED display panel.
Disclosure of Invention
The invention provides a driving method, a driving device and a display device of a display panel, which are used for reducing the brightness deviation of the display panel and improving the display effect of the display panel.
In a first aspect, an embodiment of the present invention provides a method for driving a display panel, including:
acquiring brightness to be displayed of each pixel unit of a display panel; the pixel unit comprises at least three sub-pixels with different light-emitting colors;
determining a brightness segment corresponding to the brightness to be displayed so as to determine a gamma value corresponding to the brightness to be displayed, wherein different brightness segments correspond to different gamma values;
and determining the display gray scale of each sub-pixel included by the pixel unit according to the gamma value and the brightness to be displayed.
Optionally, the display panel includes a 1 st luminance segment, a 2 nd luminance segment … … nth luminance segment, n is an integer greater than or equal to 2; the maximum brightness of the ith brightness segment is less than the minimum brightness of the (i + 1) th brightness segment, and the gamma value corresponding to the ith brightness segment is greater than the gamma value corresponding to the (i + 1) th brightness segment;
wherein i is an integer greater than or equal to 1 and less than or equal to n-1.
Optionally, after determining the brightness segment corresponding to the brightness to be displayed to determine the gamma value corresponding to the brightness to be displayed, the method further includes:
determining color coordinates corresponding to the brightness to be displayed, wherein different brightness segments correspond to different color coordinates;
correspondingly, determining the display gray scale of each sub-pixel included in the pixel unit according to the gamma value and the brightness to be displayed includes:
and determining the display gray scale of each sub-pixel included by the pixel unit according to the gamma value, the color coordinate and the brightness to be displayed.
Optionally, the display panel includes a 1 st luminance segment, a 2 nd luminance segment … … nth luminance segment, n is an integer greater than or equal to 2;
wherein the maximum brightness of the ith brightness segment is less than the minimum brightness of the (i + 1) th brightness segment;
the gamma value corresponding to the ith brightness segment is greater than the gamma value corresponding to the (i + 1) th brightness segment, the x value of the color coordinate corresponding to the ith brightness segment is greater than the x value of the color coordinate corresponding to the (i + 1) th brightness segment, and the y value of the color coordinate corresponding to the ith brightness segment is less than the y value of the color coordinate corresponding to the (i + 1) th brightness segment;
wherein i is an integer greater than or equal to 1 and less than or equal to n-1.
Optionally, the gamma values include at least three sub-gamma values, each sub-gamma value corresponds to a sub-pixel of a light emitting color, and at least three sub-gamma values are not all the same.
Optionally, determining a display gray scale of each sub-pixel included in the pixel unit according to the gamma value, the color coordinate, and the brightness to be displayed, includes:
determining the pre-display brightness of each sub-pixel included in the pixel unit according to the brightness to be displayed and the color coordinates;
and determining the display gray scale of each sub-pixel according to the pre-display brightness and the gamma value.
In a second aspect, an embodiment of the present invention further provides a driving apparatus for a display panel, including:
the brightness acquisition module is used for acquiring the brightness to be displayed of each pixel unit of the display panel; the pixel unit comprises at least three sub-pixels with different light-emitting colors;
the gamma value determining module is used for determining a brightness segment corresponding to the brightness to be displayed so as to determine a gamma value corresponding to the brightness to be displayed, wherein different brightness segments correspond to different gamma values;
and the gray scale determining module is used for determining the display gray scale of each sub-pixel included in the pixel unit according to the gamma value and the brightness to be displayed.
Optionally, the apparatus further comprises:
the color coordinate determination module is used for determining a color coordinate corresponding to the brightness to be displayed after determining a brightness segment corresponding to the brightness to be displayed so as to determine a gamma value corresponding to the brightness to be displayed, wherein different brightness segments correspond to different color coordinates;
correspondingly, the gray scale determining module is specifically configured to determine the display gray scale of each sub-pixel included in the pixel unit according to the gamma value, the color coordinate, and the brightness to be displayed.
Optionally, the display panel includes a 1 st luminance segment, a 2 nd luminance segment … … nth luminance segment, n is an integer greater than or equal to 2;
wherein the maximum brightness of the ith brightness segment is less than the minimum brightness of the (i + 1) th brightness segment;
the gamma value corresponding to the ith brightness segment is greater than the gamma value corresponding to the (i + 1) th brightness segment, the x value of the color coordinate corresponding to the ith brightness segment is greater than the x value of the color coordinate corresponding to the (i + 1) th brightness segment, and the y value of the color coordinate corresponding to the ith brightness segment is less than the y value of the color coordinate corresponding to the (i + 1) th brightness segment;
wherein i is an integer greater than or equal to 1 and less than or equal to n-1.
In a third aspect, an embodiment of the present invention further provides a display device, including a display panel and a driving device of the display panel according to any embodiment of the present invention; the driving device of the display panel is used for driving the display panel to display pictures.
According to the embodiment of the invention, different gamma values corresponding to different brightness segments are set, the brightness segment corresponding to the brightness to be displayed is determined according to the brightness to be displayed of each pixel unit of the display panel, so that the gamma value corresponding to the brightness to be displayed is determined, and the display gray scale of each sub-pixel included in the pixel unit is determined according to the gamma value and the brightness to be displayed. The different brightness sections are set to correspond to different gamma values, so that the corresponding compensation of different brightness deviations of the different brightness sections is realized, the brightness deviation of the display panel is reduced, and the display effect of the display panel is improved.
Drawings
Fig. 1 is a flowchart of a driving method of a display panel according to an embodiment of the present invention;
fig. 2 is a flowchart of a driving method of a display panel according to another embodiment of the present invention;
FIG. 3 is a graph showing the distribution of gamma values before and after high temperature operation of the display panel according to the embodiment of the present invention;
fig. 4 is a schematic diagram of a driving apparatus of a display panel according to an embodiment of the present invention;
fig. 5 is a schematic diagram of a display device according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
As mentioned in the background art, the conventional display panel is prone to brightness deviation, which results in poor display effect of the OLED display panel, and the inventors have found through research that the reason for such a problem is that: the display panel can carry out high temperature aging test before leaving the factory usually, and the display panel can shift in the TFT device characteristic at high temperature operation in-process, and sub-threshold value amplitude of oscillation increases promptly, and sub-threshold value amplitude of oscillation increase leads to leakage current to reduce, and data voltage writes into in inadequately, consequently leads to the display panel luminance to rise under low luminance after the high temperature operation, and the TFT characteristic can not return normal level after returning the normal atmospheric temperature, and luminance can't resume normal state, causes OLED display panel's display effect not good.
Based on the above technical problem, the present embodiment proposes the following solutions:
the present embodiment provides a driving method of a display panel, and fig. 1 is a flowchart of the driving method of the display panel provided by the embodiment of the present invention, and referring to fig. 1, the driving method of the display panel includes:
s110, acquiring brightness to be displayed of each pixel unit of the display panel; the pixel unit comprises at least three sub-pixels with different light-emitting colors.
Specifically, the display panel includes a plurality of pixel units, and each pixel unit includes sub-pixels such as a red sub-pixel, a green sub-pixel, and a blue sub-pixel. And driving each pixel unit to display the corresponding brightness to be displayed so that the display panel displays the corresponding display picture.
S120, determining a brightness section corresponding to the brightness to be displayed so as to determine a gamma value corresponding to the brightness to be displayed, wherein different brightness sections correspond to different gamma values.
Specifically, different brightness sections after high-temperature operation have different brightness deviations, and can be divided into a plurality of brightness sections according to the difference of the brightness deviations, each brightness section adopts different gamma values, and the compensation of the brightness deviations is realized by adjusting the gamma values.
For example, the reference formula Lvx ═ g (Gx/255) ^ a ^ Lv 255; wherein, Ga is gamma value under X gray scale, Gx represents gray scale value, Lvx is brightness value under different gray scale, it can be seen that the smaller the value of a, the larger Lvx corresponds to. After high-temperature operation, the brightness of the display panel is higher when low brightness is displayed, that is, the Gamma value of the display panel is reduced after high-temperature operation in a low-brightness section, so that the brightness of the screen body is increased, and the gray scale transition display effect is poorer. The gamma value of the low brightness segment can be increased, so as to compensate the higher brightness of the low brightness segment.
In addition, it should be noted that the gamma value in the present embodiment may include a set of sub-gamma values, and each sub-gamma value corresponds to a sub-pixel of one light emitting color. For example, the gamma values may include a first sub-gamma value corresponding to the red sub-pixel, a second sub-gamma value corresponding to the green sub-pixel, and a third sub-gamma value corresponding to the blue sub-pixel, the first sub-gamma value, the second sub-gamma value, and the third sub-gamma value may be the same or different, and the magnitudes of the first sub-gamma value, the second sub-gamma value, and the third sub-gamma value are determined according to the luminance deviation degrees of the red sub-pixel, the green sub-pixel, and the blue sub-pixel, respectively.
S130, determining the display gray scale of each sub-pixel included in the pixel unit according to the gamma value and the brightness to be displayed.
Specifically, the pre-display brightness of each sub-pixel may be determined according to the brightness to be displayed of each pixel unit and the brightness ratio of at least three sub-pixels included in the pixel unit, and the display gray scale of each sub-pixel may be determined according to the pre-display brightness and the gamma value.
In this embodiment, different gamma values corresponding to different brightness segments are set, and a brightness segment corresponding to the brightness to be displayed is determined according to the brightness to be displayed of each pixel unit of the display panel, so as to determine the gamma value corresponding to the brightness to be displayed, and determine the display gray scale of each sub-pixel included in the pixel unit according to the gamma value and the brightness to be displayed. The different brightness sections are set to correspond to different gamma values, so that the corresponding compensation of different brightness deviations of the different brightness sections is realized, the brightness deviation of the display panel is reduced, and the display effect of the display panel is improved.
Optionally, the display panel includes a 1 st luminance segment, a 2 nd luminance segment … … nth luminance segment, n is an integer greater than or equal to 2; the maximum brightness of the ith brightness segment is less than the minimum brightness of the (i + 1) th brightness segment, and the gamma value corresponding to the ith brightness segment is greater than the gamma value corresponding to the (i + 1) th brightness segment;
wherein i is an integer greater than or equal to 1 and less than or equal to n-1.
Specifically, after the inventor discovers through research that the high-temperature aging experiment, the brightness deviation corresponding to different brightness is different, the smaller the brightness is, the larger the brightness deviation is, the display panel comprises n brightness segments through setting, the smaller the brightness corresponding to the brightness segments is, the larger the corresponding gamma value is, the corresponding compensation to the different brightness deviations of the different brightness segments is realized, the compensation effect is further improved, the brightness deviation is reduced, and the display effect of the display panel is improved.
Optionally, the gamma values include at least three sub-gamma values, each sub-gamma value corresponds to a sub-pixel of a light emitting color, and at least three sub-gamma values are not all the same.
Specifically, the inventor finds that after a high-temperature aging experiment, color cast is easy to occur when a low-brightness picture is displayed, for example, the color cast appears to be green, and different compensation can be performed on the brightness of the sub-pixels with different light-emitting colors by setting different gamma values corresponding to the sub-pixels with different light-emitting colors, so that the light-emitting brightness ratio of the sub-pixels with different light-emitting colors meets the color requirement, the color cast of the display panel is compensated, and the display effect is further improved.
Fig. 2 is a flowchart of a driving method of a display panel according to another embodiment of the present invention, and referring to fig. 2, on the basis of the foregoing embodiment, the driving method of a display panel according to the present embodiment includes:
s110, acquiring brightness to be displayed of each pixel unit of the display panel; the pixel unit comprises at least three sub-pixels with different light-emitting colors.
S120, determining a brightness section corresponding to the brightness to be displayed so as to determine a gamma value corresponding to the brightness to be displayed, wherein different brightness sections correspond to different gamma values.
S140, determining color coordinates corresponding to the brightness to be displayed, wherein different brightness segments correspond to different color coordinates.
Specifically, different color coordinates are corresponding to different brightness segments, so that color cast of the display panel can be compensated, and the display effect is further improved.
S150, determining the display gray scale of each sub-pixel included in the pixel unit according to the gamma value, the color coordinate and the brightness to be displayed.
Optionally, determining a display gray scale of each sub-pixel included in the pixel unit according to the gamma value, the color coordinate, and the brightness to be displayed, includes: determining the pre-display brightness of each sub-pixel included in the pixel unit according to the brightness to be displayed and the color coordinates; and determining the display gray scale of each sub-pixel according to the pre-display brightness and the gamma value.
Specifically, the brightness ratio of at least three sub-pixels included in each pixel unit can be determined according to the color coordinates, the pre-display brightness of each sub-pixel is determined according to the brightness to be displayed and the brightness ratio, and the display gray scale of each sub-pixel is determined according to the pre-display brightness and the gamma value through the gamma formula.
In this embodiment, different gamma values and color coordinates corresponding to different brightness segments are set, and the brightness segment corresponding to the brightness to be displayed is determined according to the brightness to be displayed of each pixel unit of the display panel, so that the gamma value and the color coordinate corresponding to the brightness to be displayed are determined, and the display gray scale of each sub-pixel included in the pixel unit is determined according to the gamma value, the color coordinate and the brightness to be displayed. Different brightness sections are set to correspond to different gamma values and color coordinates, so that corresponding compensation for different brightness deviations and color cast of the different brightness sections is realized, and the display effect of the display panel is improved.
Optionally, the display panel includes a 1 st luminance segment, a 2 nd luminance segment … …, and an nth luminance segment, n is an integer greater than or equal to 2; wherein the maximum brightness of the ith brightness segment is less than the minimum brightness of the (i + 1) th brightness segment;
the gamma value corresponding to the ith brightness segment is greater than the gamma value corresponding to the (i + 1) th brightness segment, the x value of the color coordinate corresponding to the ith brightness segment is greater than the x value of the color coordinate corresponding to the (i + 1) th brightness segment, and the y value of the color coordinate corresponding to the ith brightness segment is less than the y value of the color coordinate corresponding to the (i + 1) th brightness segment;
wherein i is an integer greater than or equal to 1 and less than or equal to n-1.
Specifically, the inventor discovers through the research that after the high temperature aging experiment, the luminance deviation and the colour cast that different luminance correspond are different, the luminance is smaller, the luminance deviation is bigger, the colour cast is more serious, include n luminance sections through setting up display panel, the luminance that the luminance section corresponds is smaller, corresponding gamma value is bigger, the x value of corresponding colour coordinate is bigger, the y value is smaller, the realization is to the corresponding compensation of the different luminance deviation of different luminance sections, and correspond the compensation to different colour cast degrees, further promote the compensation effect, reduce luminance deviation and colour cast, promote display panel's display effect.
Illustratively, a first luminance segment may be set: lv is less than or equal to 0.01nit, gamma value is 3.5, and color coordinate is as follows: x is 0.315 and y is 0.253; the second brightness segment: 0.01nit < Lv ≤ 0.1nit, gamma value of 3.0, color coordinate: x is 0.310 and y is 0.263; the third brightness segment: 0.1nit < Lv ≤ 0.5nit, gamma value of 2.7, color coordinate: x is 0.305 and y is 0.283; fourth luminance segment: 0.5nit < Lv ≤ 1nit, gamma value of 2.5, color coordinate: x is 0.303, y is 0.293; a fifth luminance segment: lv >1nit, gamma 2.2, color coordinates: x is 0.299, and y is 0.315; where Lv is the luminance. Fig. 3 is a gamma value distribution diagram of the display panel before and after high-temperature operation according to the embodiment of the present invention, and referring to fig. 3, after the scheme of the embodiment is adopted, the gamma value of the display panel after high-temperature operation is distributed at about 2.2, which meets the display requirement.
Fig. 4 is a schematic diagram of a driving apparatus for a display panel according to an embodiment of the present invention, and referring to fig. 4, the driving apparatus 300 for a display panel includes:
a brightness obtaining module 210, configured to obtain a brightness to be displayed of each pixel unit of the display panel; the pixel unit comprises at least three sub-pixels with different light-emitting colors;
a gamma value determining module 220, configured to determine a brightness segment corresponding to the brightness to be displayed, so as to determine a gamma value corresponding to the brightness to be displayed, where different brightness segments correspond to different gamma values;
a gray level determining module 230, configured to determine a display gray level of each sub-pixel included in the pixel unit according to the gamma value and the brightness to be displayed.
Optionally, the apparatus further comprises:
the color coordinate determination module is used for determining a color coordinate corresponding to the brightness to be displayed after determining a brightness segment corresponding to the brightness to be displayed so as to determine a gamma value corresponding to the brightness to be displayed, wherein different brightness segments correspond to different color coordinates;
correspondingly, the gray scale determining module is specifically configured to determine the display gray scale of each sub-pixel included in the pixel unit according to the gamma value, the color coordinate, and the brightness to be displayed.
Optionally, the display panel includes a 1 st luminance segment, a 2 nd luminance segment … … nth luminance segment, n is an integer greater than or equal to 2, wherein the maximum luminance of the ith luminance segment is less than the minimum luminance of the (i + 1) th luminance segment;
the gamma value corresponding to the ith brightness segment is greater than the gamma value corresponding to the (i + 1) th brightness segment, the x value of the color coordinate corresponding to the ith brightness segment is greater than the x value of the color coordinate corresponding to the (i + 1) th brightness segment, and the y value of the color coordinate corresponding to the ith brightness segment is less than the y value of the color coordinate corresponding to the (i + 1) th brightness segment;
wherein i is an integer greater than or equal to 1 and less than or equal to n-1.
Optionally, the gamma values include at least three sub-gamma values, each sub-gamma value corresponds to a sub-pixel of a light emitting color, and at least three sub-gamma values are not all the same.
The driving apparatus of the display panel provided in this embodiment and the driving method of the display panel provided in any embodiment of the present invention belong to the same inventive concept, and have corresponding beneficial effects, and detailed technical details of the driving apparatus of the display panel provided in any embodiment of the present invention are not described in detail in this embodiment.
Fig. 5 is a schematic diagram of a display device according to an embodiment of the present invention, and referring to fig. 5, the display device 100 includes a display panel 200 and a driving device 300 of the display panel according to any embodiment of the present invention; the driving apparatus 300 of the display panel is used for driving the display panel 100 to display a picture. The display device 100 may be an electronic device such as a mobile phone or a tablet.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious modifications, rearrangements, combinations and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (10)
1. A method of driving a display panel, comprising:
acquiring brightness to be displayed of each pixel unit of a display panel; the pixel unit comprises at least three sub-pixels with different light-emitting colors;
determining a brightness segment corresponding to the brightness to be displayed so as to determine a gamma value corresponding to the brightness to be displayed, wherein different brightness segments correspond to different gamma values;
and determining the display gray scale of each sub-pixel included by the pixel unit according to the gamma value and the brightness to be displayed.
2. The driving method according to claim 1, characterized in that:
the display panel comprises a 1 st brightness segment and a 2 nd brightness segment … … nth brightness segment, wherein n is an integer greater than or equal to 2;
the maximum brightness of the ith brightness segment is less than the minimum brightness of the (i + 1) th brightness segment, and the gamma value corresponding to the ith brightness segment is greater than the gamma value corresponding to the (i + 1) th brightness segment; wherein i is an integer greater than or equal to 1 and less than or equal to n-1.
3. The driving method according to claim 1, wherein after determining the luminance segment corresponding to the luminance to be displayed to determine the gamma value corresponding to the luminance to be displayed, the method further comprises:
determining color coordinates corresponding to the brightness to be displayed, wherein different brightness segments correspond to different color coordinates;
correspondingly, determining the display gray scale of each sub-pixel included in the pixel unit according to the gamma value and the brightness to be displayed includes:
and determining the display gray scale of each sub-pixel included by the pixel unit according to the gamma value, the color coordinate and the brightness to be displayed.
4. The driving method according to claim 3, characterized in that:
the display panel comprises a 1 st brightness segment and a 2 nd brightness segment … … nth brightness segment, wherein n is an integer greater than or equal to 2;
wherein the maximum brightness of the ith brightness segment is less than the minimum brightness of the (i + 1) th brightness segment;
the gamma value corresponding to the ith brightness segment is greater than the gamma value corresponding to the (i + 1) th brightness segment, the x value of the color coordinate corresponding to the ith brightness segment is greater than the x value of the color coordinate corresponding to the (i + 1) th brightness segment, and the y value of the color coordinate corresponding to the ith brightness segment is less than the y value of the color coordinate corresponding to the (i + 1) th brightness segment;
wherein i is an integer greater than or equal to 1 and less than or equal to n-1.
5. The driving method according to claim 1, characterized in that:
the gamma values include at least three sub-gamma values, each of the sub-gamma values corresponds to a sub-pixel of a light emitting color, and at least three of the sub-gamma values are not all the same.
6. The driving method according to claim 3, wherein determining a display gray scale of each sub-pixel included in the pixel unit according to the gamma value, the color coordinate and the brightness to be displayed comprises:
determining the pre-display brightness of each sub-pixel included in the pixel unit according to the brightness to be displayed and the color coordinates;
and determining the display gray scale of each sub-pixel according to the pre-display brightness and the gamma value.
7. A driving apparatus of a display panel, comprising:
the brightness acquisition module is used for acquiring the brightness to be displayed of each pixel unit of the display panel; the pixel unit comprises at least three sub-pixels with different light-emitting colors;
the gamma value determining module is used for determining a brightness segment corresponding to the brightness to be displayed so as to determine a gamma value corresponding to the brightness to be displayed, wherein different brightness segments correspond to different gamma values;
and the gray scale determining module is used for determining the display gray scale of each sub-pixel included in the pixel unit according to the gamma value and the brightness to be displayed.
8. The drive device according to claim 7, further comprising:
the color coordinate determination module is used for determining a color coordinate corresponding to the brightness to be displayed after determining a brightness segment corresponding to the brightness to be displayed so as to determine a gamma value corresponding to the brightness to be displayed, wherein different brightness segments correspond to different color coordinates;
correspondingly, the gray scale determining module is specifically configured to determine the display gray scale of each sub-pixel included in the pixel unit according to the gamma value, the color coordinate, and the brightness to be displayed.
9. The drive device according to claim 8, characterized in that:
the display panel comprises a 1 st brightness segment and a 2 nd brightness segment … … nth brightness segment, wherein n is an integer greater than or equal to 2;
wherein the maximum brightness of the ith brightness segment is less than the minimum brightness of the (i + 1) th brightness segment;
the gamma value corresponding to the ith brightness segment is greater than the gamma value corresponding to the (i + 1) th brightness segment, the x value of the color coordinate corresponding to the ith brightness segment is greater than the x value of the color coordinate corresponding to the (i + 1) th brightness segment, and the y value of the color coordinate corresponding to the ith brightness segment is less than the y value of the color coordinate corresponding to the (i + 1) th brightness segment;
wherein i is an integer greater than or equal to 1 and less than or equal to n-1.
10. A display device comprising a display panel and a driving device of the display panel according to any one of claims 7 to 9;
the driving device of the display panel is used for driving the display panel to display pictures.
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Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030122749A1 (en) * | 2001-12-31 | 2003-07-03 | Booth Lawrence A. | Energy sensing light emitting diode display |
| CN1670803A (en) * | 2004-05-04 | 2005-09-21 | 友达光电股份有限公司 | Method for color displacement and compensation of organic illuminated display |
| TW200625255A (en) * | 2005-01-07 | 2006-07-16 | Vastview Tech Inc | Driving method of display device with pixel in matrix arrangement |
| US20080136763A1 (en) * | 2006-12-11 | 2008-06-12 | Sony Corporation | Image processing apparatus, image processing method, display apparatus, and projection display apparatus |
| CN101771827A (en) * | 2008-12-29 | 2010-07-07 | 深圳艾科创新微电子有限公司 | Device and method for regulating image brightness by gamma |
| WO2011012913A1 (en) * | 2009-07-31 | 2011-02-03 | Tibor Balogh | Method and apparatus for displaying 3d images |
| US20140320552A1 (en) * | 2013-04-25 | 2014-10-30 | Lg Display Co., Ltd. | Gamma compensation method and display device using the same |
| CN105788524A (en) * | 2014-12-26 | 2016-07-20 | 昆山国显光电有限公司 | Gamma adjusting device and gamma adjusting method |
| US20180082627A1 (en) * | 2016-03-31 | 2018-03-22 | Shenzhen China Star Optoelectronics Technology Co., Ltd. | Method of eliminating oled display panel mura |
| CN107978289A (en) * | 2017-12-20 | 2018-05-01 | 惠科股份有限公司 | The driving method and driving device of a kind of display device |
| CN108550345A (en) * | 2018-07-12 | 2018-09-18 | 成都京东方光电科技有限公司 | Gamma correction method and device, display device, computer storage media |
| US20180367708A1 (en) * | 2017-06-20 | 2018-12-20 | Au Optronics Corporation | Display apparatus and gamma curve compensation circuit and driving method thereof |
| KR20190043661A (en) * | 2017-10-18 | 2019-04-29 | 삼성디스플레이 주식회사 | Organic light emitting display device and method for setting gamma reference voltage thereof |
| CN110491330A (en) * | 2019-09-26 | 2019-11-22 | 昆山国显光电有限公司 | A kind of gamma adjusting method, device and display device |
| US20200043412A1 (en) * | 2017-09-27 | 2020-02-06 | Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd. | Voltage compensation method, compensation circuit, and display apparatus of oled |
| CN111508414A (en) * | 2020-04-27 | 2020-08-07 | 昆山国显光电有限公司 | Gamma adjusting method and device for display panel |
| CN111785209A (en) * | 2020-07-16 | 2020-10-16 | 京东方科技集团股份有限公司 | Display panel, driving method thereof and display device |
-
2021
- 2021-02-24 CN CN202110210060.6A patent/CN112967676B/en active Active
Patent Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030122749A1 (en) * | 2001-12-31 | 2003-07-03 | Booth Lawrence A. | Energy sensing light emitting diode display |
| CN1670803A (en) * | 2004-05-04 | 2005-09-21 | 友达光电股份有限公司 | Method for color displacement and compensation of organic illuminated display |
| TW200625255A (en) * | 2005-01-07 | 2006-07-16 | Vastview Tech Inc | Driving method of display device with pixel in matrix arrangement |
| US20080136763A1 (en) * | 2006-12-11 | 2008-06-12 | Sony Corporation | Image processing apparatus, image processing method, display apparatus, and projection display apparatus |
| CN101771827A (en) * | 2008-12-29 | 2010-07-07 | 深圳艾科创新微电子有限公司 | Device and method for regulating image brightness by gamma |
| WO2011012913A1 (en) * | 2009-07-31 | 2011-02-03 | Tibor Balogh | Method and apparatus for displaying 3d images |
| US20140320552A1 (en) * | 2013-04-25 | 2014-10-30 | Lg Display Co., Ltd. | Gamma compensation method and display device using the same |
| CN105788524A (en) * | 2014-12-26 | 2016-07-20 | 昆山国显光电有限公司 | Gamma adjusting device and gamma adjusting method |
| US20180082627A1 (en) * | 2016-03-31 | 2018-03-22 | Shenzhen China Star Optoelectronics Technology Co., Ltd. | Method of eliminating oled display panel mura |
| US20180367708A1 (en) * | 2017-06-20 | 2018-12-20 | Au Optronics Corporation | Display apparatus and gamma curve compensation circuit and driving method thereof |
| US20200043412A1 (en) * | 2017-09-27 | 2020-02-06 | Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd. | Voltage compensation method, compensation circuit, and display apparatus of oled |
| KR20190043661A (en) * | 2017-10-18 | 2019-04-29 | 삼성디스플레이 주식회사 | Organic light emitting display device and method for setting gamma reference voltage thereof |
| CN107978289A (en) * | 2017-12-20 | 2018-05-01 | 惠科股份有限公司 | The driving method and driving device of a kind of display device |
| CN108550345A (en) * | 2018-07-12 | 2018-09-18 | 成都京东方光电科技有限公司 | Gamma correction method and device, display device, computer storage media |
| CN110491330A (en) * | 2019-09-26 | 2019-11-22 | 昆山国显光电有限公司 | A kind of gamma adjusting method, device and display device |
| CN111508414A (en) * | 2020-04-27 | 2020-08-07 | 昆山国显光电有限公司 | Gamma adjusting method and device for display panel |
| CN111785209A (en) * | 2020-07-16 | 2020-10-16 | 京东方科技集团股份有限公司 | Display panel, driving method thereof and display device |
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