CN115359765A - Display device and brightness compensation method thereof - Google Patents
Display device and brightness compensation method thereof Download PDFInfo
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- CN115359765A CN115359765A CN202211049021.3A CN202211049021A CN115359765A CN 115359765 A CN115359765 A CN 115359765A CN 202211049021 A CN202211049021 A CN 202211049021A CN 115359765 A CN115359765 A CN 115359765A
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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
- G09G3/34—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 by control of light from an independent source
- G09G3/36—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 by control of light from an independent source using liquid crystals
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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
- G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
- G09G5/10—Intensity circuits
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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
- G09G2320/04—Maintaining the quality of display appearance
- G09G2320/043—Preventing or counteracting the effects of ageing
- G09G2320/046—Dealing with screen burn-in prevention or compensation of the effects thereof
Abstract
The invention provides a brightness compensation method of a display device and the display device, and the method comprises the following steps: s1, acquiring original brightness compensation parameters of M sub-display areas of a display panel; s2, calculating current brightness compensation parameters corresponding to N sub-display areas according to compensation parameters input from the outside and the original brightness compensation parameters of the N sub-display areas, wherein M is more than or equal to N and more than or equal to 1, and M and N are positive integers; and S3, compensating the data signals of the corresponding N sub-display areas according to the current brightness compensation parameters to compensate the brightness of the corresponding N sub-display areas, and performing independent brightness compensation on part of the sub-display areas in the display areas to solve the problem that the watching experience of a user is influenced due to the change of the brightness of part of the screen caused by circuit loss after the display panel is used for a long time.
Description
Technical Field
The present invention relates to the field of display technologies, and in particular, to a brightness compensation method for a display device and a display device.
Background
With the development of Display technology and the advantages of Liquid Crystal Displays (LCDs), such as power saving, no radiation, long service life, etc., LCDs have been dominant in the field of Display technology.
Due to the defects of the production process and the like, after the display panel of the LCD is used for a long time, the brightness of partial areas of the screen can be changed due to circuit loss, and the watching feeling of a user is influenced.
Disclosure of Invention
The embodiment of the invention provides a brightness compensation method of a display device and the display device, which aim to solve the problem that after a display panel is used for a long time, partial area of a screen has brightness change due to circuit loss, so that the watching experience of a user is influenced.
In order to solve the above problems, the technical scheme provided by the invention is as follows:
a method of brightness compensation for a display device, the method comprising:
s1, acquiring original brightness compensation parameters of M sub-display areas of a display panel;
s2, calculating current brightness compensation parameters corresponding to N sub-display areas according to compensation parameters input from the outside and the original brightness compensation parameters of the N sub-display areas, wherein M is more than or equal to N and more than or equal to 1, and M and N are positive integers;
and S3, compensating the data signals of the corresponding N sub-display areas according to the current brightness compensation parameter so as to compensate the brightness of the corresponding N sub-display areas.
According to a preferred embodiment of the present invention, before the step S1, the method further includes:
and S0, judging whether the device is in a compensation mode, and if so, executing the S1.
According to a preferred embodiment of the present invention, the original brightness compensation parameters of M sub-display regions correspond to M first address parameters;
the externally input compensation parameters comprise N intermediate brightness compensation parameters and N second address parameters, the intermediate brightness compensation parameters are used for adjusting the original brightness compensation parameters to generate the current brightness compensation parameters, and the N second address parameters correspond to the N intermediate brightness compensation parameters;
the first address parameter and the second address parameter are used for matching the intermediate brightness compensation parameter with the corresponding original brightness compensation parameter.
According to a preferred embodiment of the present invention, the S2 includes:
s210, acquiring original brightness compensation parameters of N sub-display areas according to N second address parameters, wherein the N second address parameters are the same as N first address parameters corresponding to the N sub-display areas;
s220, calculating to obtain the current brightness compensation parameters of the corresponding N sub-display areas according to the obtained original brightness compensation parameters of the N sub-display areas and the N middle brightness compensation parameters.
According to a preferred embodiment of the present invention, after S3, the method further includes:
s4, controlling the display panel to display the compensated picture according to the compensated data signal;
and S5, storing the N current brightness compensation parameters according to the confirmation operation of external input.
According to a preferred embodiment of the present invention, before storing the N current illumination compensation parameters, the method further includes:
and erasing the original brightness compensation parameters of the corresponding N sub-display areas according to the confirmation operation input from the outside.
An embodiment of the present invention further provides a display device, including:
a display panel for displaying a picture according to the data signal;
the storage unit is used for storing an original brightness compensation parameter of a sub-display area of the display panel and a first address parameter corresponding to the original brightness compensation parameter;
the control circuit board comprises a time schedule controller which is electrically connected with the display panel and the storage unit;
the input/output equipment is electrically connected to the time schedule controller, and is used for receiving an externally input control signal and sending the control signal to the time schedule controller, wherein the control signal comprises a compensation parameter and a confirmation operation;
the time sequence controller is used for calculating a current brightness compensation parameter according to the compensation parameter and transmitting the current brightness compensation parameter to the display panel, and controlling the storage unit to store the current brightness compensation parameter according to the confirmation operation.
According to a preferred embodiment of the present invention, the timing controller includes a reading module, an output module, a calculating module and a receiving module;
the receiving module is electrically connected with the input/output equipment and the computing module respectively and is used for transmitting the compensation parameters and the confirmation operation sent by the input/output equipment to the computing module;
the reading module is respectively electrically connected with the storage unit and the calculating module and is used for transmitting the original brightness compensation parameter and the first address parameter to the calculating module;
the calculation module is used for calculating a current brightness compensation parameter according to the compensation parameter, the original brightness compensation parameter and the first address parameter and transmitting the current brightness compensation parameter to the output module;
the output module is electrically connected with the calculation module and the display panel respectively and is used for outputting the current brightness compensation parameter transmitted by the calculation module to the display panel.
According to a preferred embodiment of the present invention, the compensation parameters include an intermediate luminance compensation parameter, and a second address parameter corresponding to the intermediate luminance compensation parameter, and the first address parameter and the second address parameter are used for matching the intermediate luminance compensation parameter with the corresponding original luminance compensation parameter.
According to a preferred embodiment of the present invention, the timing controller further includes a writing module, and the writing module is electrically connected to the calculating module and the storage unit, respectively, and is configured to store the current brightness compensation parameter into the storage unit according to the confirmation operation.
The beneficial effects of the invention are as follows: calculating current brightness compensation parameters corresponding to N sub-display areas according to external input compensation parameters by acquiring original brightness compensation parameters of M sub-display areas of the display panel, wherein the current brightness compensation parameters are used for compensating data signals of the N sub-display areas; through carrying out independent luminance compensation on part of sub-display areas in the display area, the problem that after the display panel is used for a long time, the luminance of part of areas of a screen is changed due to circuit loss, and the watching feeling of a user is influenced is solved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a flow chart illustrating an embodiment of a luminance compensation method according to the present invention;
FIG. 2 is a schematic flow chart of one embodiment of step S2 of the present invention;
FIG. 3 is a schematic diagram of sub-display regions divided by the display panel of the present invention;
FIG. 4 is a table of original luminance compensation parameters for sub-display areas according to the present invention;
FIG. 5 is a schematic structural diagram of a display device according to the present invention;
fig. 6 is a schematic structural diagram of a timing controller according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It should be apparent that the described embodiments are only a few embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g. as mechanical, electrical or communicative; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as the case may be.
The following disclosure provides many different embodiments or examples for implementing different features of the application. To simplify the disclosure of the present application, specific example components and arrangements are described below. Of course, they are merely examples and are not intended to limit the present application. Moreover, the present application may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed.
Due to the defects of the production process and the like, after the display panel of the LCD is used for a long time, the brightness of partial areas of the screen can be changed due to circuit loss, and the watching feeling of a user is influenced. The embodiment provides a brightness compensation method of a display device, which is applied to the display device.
Referring to fig. 1 and 5, the display device includes a display panel 1, a control circuit board 2, a storage unit Flash, and an input/output device 3, the control circuit board 2 is electrically connected to the display panel 1 and the storage unit Flash, the control circuit board 2 includes a timing controller Tcon, the timing controller Tcon is electrically connected to the storage unit Flash, and the input/output device 3 is electrically connected to the control circuit board 2, where the timing controller Tcon is used to execute a program instruction, and has a reading function, an output function, a calculating function, and a receiving function, for example, to receive data sent by the input/output device 3, read data stored in the storage unit Flash, perform calculation according to data sent by the input/output device 3 and data stored in the storage unit Flash, and output a final calculation result.
The brightness compensation method of the display device in the embodiment is implemented based on the display device, and includes the following steps:
s1, obtaining original brightness compensation parameters of M sub-display areas of a display panel, and specifically obtaining the original brightness compensation parameters of the M sub-display areas of the display panel 1 from the storage unit Flash.
The display panel 1 may be divided into a plurality of sub-display regions, an original brightness compensation table is pre-stored in the storage unit Flash, and a plurality of original brightness compensation parameters corresponding to each sub-display region are stored in the original brightness compensation table, that is, each sub-display region has an original brightness compensation parameter corresponding thereto. For example, the display area of the display panel 1 includes M sub-display areas, and the storage unit Flash pre-stores an original brightness compensation table composed of M original brightness compensation parameters.
S2, calculating current brightness compensation parameters corresponding to the N sub-display areas according to compensation parameters input from the outside and the original brightness compensation parameters of the N sub-display areas, wherein M is more than or equal to N and is more than or equal to 1, and M and N are positive integers, specifically, calculating the current brightness compensation parameters corresponding to the N sub-display areas according to the compensation parameters received by the input/output equipment 3, wherein the current brightness compensation parameters are used for compensating the brightness of the N sub-display areas.
The input/output device 3 may receive a control signal sent by an external transmitting device, such as a remote controller, or the input/output module may be a touch module, and is configured to receive a touch operation, convert the touch operation into a corresponding control signal, and transmit the control signal to the timing controller Tcon, where the timing controller Tcon performs a corresponding operation according to the control signal.
And S3, compensating the data signals of the corresponding N sub-display areas according to the current brightness compensation parameter so as to compensate the brightness of the corresponding N sub-display areas, specifically, adding the current brightness compensation parameter and the data signals of the corresponding sub-display areas, inputting the compensated data signals to the display panel for display, and further completing the brightness compensation of the corresponding N sub-display areas.
In this embodiment, through performing individual brightness compensation on N sub-display regions of the M sub-display regions, the problem that the viewing experience of a user is affected due to the change of brightness of a partial region of the screen caused by circuit loss after the display panel 1 is used for a long time is solved.
As can be seen from the above embodiments, the S1, the S2, and the S3 are for compensating the display panel, and are different from the display mode only used for displaying, and therefore, in this embodiment, it is necessary to detect whether the display panel is in the compensation mode or the display mode before executing the S1, and therefore, the S1 further includes the S0 before executing the S1, and determines whether the display panel is in the compensation mode, and if so, executes the S1. The compensation mode may be selected and confirmed by a user through a remote controller.
Referring to fig. 2, in some embodiments of the present invention, in S1, the original brightness compensation parameters of M sub-display regions of the display panel 1 are obtained from the storage unit Flash.
Specifically, the display panel 1 may be divided into a plurality of sub-display areas, the storage unit Flash stores an original brightness compensation table in advance, and the original brightness compensation table stores a plurality of original brightness compensation parameters corresponding to each sub-display area, that is, each sub-display area has an original brightness compensation parameter corresponding to each sub-display area.
For example, the display panel 1 with 1920 × 1080 resolution, that is, the display panel 1 is a pixel array formed by 1920 subpixels in the transverse direction and 1080 subpixels in the longitudinal direction, and the pixel array is divided into one sub-display region by every 8 × 8 subpixels, so that the display panel 1 has 1920 × 1080/64=32400 sub-display regions, and 32400 original brightness compensation parameters corresponding to 32400 sub-display regions are stored in the corresponding original brightness compensation table. And acquiring original brightness compensation parameters of M sub-display areas of the display panel 1 from the storage unit Flash, and reading M brightness compensation parameters corresponding to the M sub-display areas in the storage unit Flash by the real-time controller Tcon.
And S2, calculating current brightness compensation parameters corresponding to the N sub-display areas according to the compensation parameters received by the input/output equipment 3, wherein the current brightness compensation parameters are used for compensating the brightness of the N sub-display areas, M is more than or equal to N and more than or equal to 1, and M and N are positive integers.
In this embodiment, the compensation parameter includes an intermediate brightness compensation parameter, and the intermediate brightness compensation parameter is used to adjust the original brightness compensation parameter to generate the current brightness compensation parameter.
Specifically, the input/output device 3 receives a compensation parameter sent by an external transmitting device, and transmits the compensation parameter to the time schedule controller Tcon, where the compensation parameter includes middle luminance compensation parameters of N sub-display regions, and the time schedule controller Tcon compensates N sub-display regions of M sub-display regions according to the received middle luminance compensation parameters of the N sub-display regions, for example, the time schedule controller Tcon adds the received compensation parameters of the N sub-display regions to the read original luminance compensation parameters in the storage unit Flash, so as to obtain current luminance compensation parameters corresponding to the N sub-display regions.
It can be understood that, since the display panel 1 has a plurality of sub-display regions, and the original brightness compensation table has a plurality of original brightness compensation parameters corresponding thereto, when the timing controller Tcon receives only the intermediate brightness compensation parameter, it is not possible to confirm which sub-display region the intermediate brightness compensation parameter specifically corresponds to, that is, the timing controller Tcon cannot determine which sub-display region the intermediate brightness compensation parameter should be calculated with the original brightness compensation parameter of which sub-display region, and therefore, the compensation parameter further includes an address parameter corresponding to the intermediate brightness compensation parameter.
Thus, said S2 comprises:
s210, obtaining original brightness compensation parameters of N sub-display areas according to N second address parameters, wherein the N second address parameters are the same as the first address parameters corresponding to the N sub-display areas.
S220, calculating to obtain the current brightness compensation parameters of the corresponding N sub-display areas according to the obtained original brightness compensation parameters of the N sub-display areas and the N middle brightness compensation parameters.
In this embodiment, the storage unit Flash further stores M first address parameters corresponding to the original brightness compensation parameters of the M sub-display areas, that is, each sub-display area has a corresponding first address parameter, and the original brightness compensation parameter of each sub-display area can be determined according to the first address parameter.
The compensation parameters include an intermediate brightness compensation parameter and a second address parameter, where the second address parameter corresponds to the intermediate brightness compensation parameter, that is, each intermediate brightness compensation parameter has a corresponding second address parameter, and it is determined, according to the second address parameter, which sub-display region the intermediate brightness compensation parameter is used to compensate, that is, according to the second address parameter, the original brightness compensation parameters of the corresponding N sub-display regions are obtained for compensation, and the timing controller receives the N intermediate brightness compensation parameters and the N second address parameters sent by the input/output device 3.
When the timing controller Tcon calculates the intermediate brightness compensation parameter and the original brightness compensation parameter of the sub-display region, the sub-display region for compensation of the intermediate brightness compensation parameter can be determined only by matching the second address parameter of the intermediate brightness compensation parameter with the first address parameter stored in the original brightness parameter table, and the original brightness compensation parameter corresponding to the sub-display region and the intermediate brightness compensation parameter are added to obtain the current brightness compensation parameter.
Specifically, the timing controller Tcon matches the N received second address parameters with the M first address parameters, determines N sub-display regions for which the N intermediate luminance compensation parameters are used for compensation, and then adds the N second address parameters to N original luminance compensation parameters of the N corresponding sub-display regions, thereby obtaining the current luminance compensation parameters corresponding to the N sub-display regions.
As shown in fig. 3 and 4, the display panel 1 has D1, D2, \8230 \ 8230, D12 sub-display regions, where the position of each display region is D1, D2, \8230 \ 8230, and D12, the original luminance compensation table stores the positions D1 to D12 of each display region as a first address parameter, and stores an original luminance compensation parameter corresponding to each sub-display region according to the first address parameter, the compensation parameter received by the timing controller Tcon and sent by the input/output device 3 includes an intermediate luminance compensation parameter and a second address parameter, for example, the value of the intermediate luminance compensation parameter is 3, the second address parameter is D5, the timing controller Tcon compensates the intermediate luminance compensation parameter to the D5 sub-display region, that is, the value of the intermediate luminance compensation parameter is added to the value 4 of the original luminance compensation parameter corresponding to the D5 sub-display region, to obtain the value of the current compensation luminance parameter is 7, and the value of the current luminance compensation parameter of the D5 sub-display region is 7.
The compensation parameters can be input by a user through a remote controller, and the steps can be as follows: the user selects the sub-display area to be compensated through the remote controller, namely, the user inputs a second address parameter to the input/output device 3, and then adjusts the compensation parameter through the remote controller, for example, the compensation parameter is increased or decreased, namely, the intermediate brightness compensation parameter is sent to the input/output device 3, the input/output device 3 sends the intermediate brightness compensation parameter and the second address parameter to the time schedule controller Tcon after receiving the intermediate brightness compensation parameter and the second address parameter, the time schedule controller Tcon matches the second address parameter with the first address parameter corresponding to each sub-display area according to the received intermediate brightness compensation parameter and the second address parameter, and after determining the sub-display area to be compensated, the intermediate brightness compensation parameter is added with the original brightness compensation parameter of the corresponding sub-display area, so that the current brightness compensation parameter of the corresponding sub-display area is obtained.
In this embodiment, after S3, the method further includes: and S4, controlling the display panel to display the compensated picture according to the compensated data signal, specifically, controlling the display panel 1 to display the compensated picture, for example, sending the compensated data signal to the display panel 1 by the timing controller Tcon, so that the display panel 1 displays the compensated picture.
The increasing or decreasing steps in the above embodiment can be determined by the user based on the adjusted display effect, that is, the user can adjust the display effect of the psychoscope, thereby improving the use experience of the user.
As can be seen from the foregoing embodiments, the adjusted current brightness compensation parameter of the sub-display area is not stored, and the user still needs to manually adjust the current brightness compensation parameter when the display device is started next time.
Therefore, after S4, S5 is further included, according to the confirmation operation of the external input, storing N current brightness compensation parameters, specifically, according to the confirmation operation received by the input/output device 3, the storage unit Flash stores N current brightness compensation parameters.
Further, after the input/output device 3 receives a confirmation operation, for example, the user presses a confirmation button, the timing controller Tcon writes the current brightness compensation parameter into the original brightness compensation parameter table in the storage unit Flash, and corresponds to the sub-display area compensated in the above step. The current brightness compensation parameter is written into the original brightness compensation parameter table, so that the user does not need to repeatedly adjust the current brightness compensation parameter table when using the current brightness compensation parameter table next time, and the use experience of the user is improved.
It can be known from the foregoing embodiment that each sub-display area has only one corresponding compensation parameter, and after the current brightness compensation parameter is written into the original brightness compensation parameter table, the corresponding sub-display area has both the current brightness compensation parameter and the original brightness compensation parameter, which may cause display abnormality, so that the timing controller Tcon needs to erase the original brightness compensation parameter of the sub-display area corresponding to the storage unit Flash before controlling the storage unit Flash to store the current brightness compensation parameter.
Referring to fig. 5 and 6, an embodiment of the present invention further provides a display device for performing the brightness compensation method of the foregoing embodiment, where the display device includes a display panel 1, a control circuit board 2, a driving circuit board 9 and an input/output device 3, the control circuit board 2 is electrically connected to the display panel 1 and includes a timing controller Tcon, the driving circuit board 9 is electrically connected to the display panel 1 through a flip-chip film 10 and is electrically connected to the control circuit board 2 through a flexible flat cable 8, the driving circuit board 9 includes a storage unit Flash electrically connected to the timing controller Tcon, the input/output device 3 is electrically connected to the control circuit board 2 and is configured to receive a control signal of an external control device, for example, the compensation parameter in the foregoing embodiment, and the storage unit Flash stores an original brightness compensation parameter and a first address parameter corresponding to the original brightness compensation parameter.
In this embodiment, the timing controller Tcon includes a reading module 4, an output module 5, a calculating module 6, and a receiving module 7, where the receiving module 7 is electrically connected to the input/output device 3 and the calculating module 6, respectively, and is configured to receive the compensation parameter sent by the input/output device 3 and transmit the compensation parameter to the calculating module 6.
The reading module 4 is electrically connected to the storage unit Flash and the calculating module 6, respectively, and is configured to transmit the original brightness compensation parameter and the first address parameter stored in the storage unit Flash to the calculating module 6, and the calculating module 6 calculates the current brightness compensation parameter according to the compensation parameter, the original brightness compensation parameter, and the first address parameter, and transmits the current brightness compensation parameter to the output module 5. The output module 5 is electrically connected to the calculation module 6 and the display panel 1, and outputs the data transmitted by the calculation module 6 to the display panel 1, so that the display panel 1 displays the compensated picture.
In this embodiment, the compensation parameter includes an intermediate luminance compensation parameter and a second address parameter corresponding to the intermediate luminance compensation parameter, and the intermediate luminance compensation parameter can be matched with the original luminance compensation parameter of the corresponding sub-display region according to the first address parameter and the second address parameter.
In this embodiment, the timing controller Tcon further includes a write-in module, where the write-in module is electrically connected to the computing module 6 and the storage unit Flash, and is configured to write the current brightness compensation parameter computed by the computing module 6 into the storage unit Flash according to the confirmation operation, and erase the original brightness compensation parameter of the corresponding sub-display area in the original brightness compensation parameter table.
The working process of the display device in this embodiment is described in detail in the above method embodiments, and is not described herein again.
In summary, although the present invention has been described with reference to the preferred embodiments, the above-described preferred embodiments are not intended to limit the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, therefore, the scope of the present invention shall be determined by the appended claims.
Claims (10)
1. A method for compensating brightness of a display device, the method comprising:
s1, acquiring original brightness compensation parameters of M sub-display areas of a display panel;
s2, calculating current brightness compensation parameters corresponding to N sub-display areas according to compensation parameters input from the outside and the original brightness compensation parameters of the N sub-display areas, wherein M is more than or equal to N and more than or equal to 1, and M and N are positive integers;
and S3, compensating the data signals of the corresponding N sub-display areas according to the current brightness compensation parameter so as to compensate the display of the corresponding N sub-display areas.
2. The method for compensating brightness of a display device according to claim 1, further comprising, before the step S1:
and S0, judging whether the device is in a compensation mode, and if so, executing the S1.
3. The method of claim 2, wherein the M original brightness compensation parameters of the sub-display regions correspond to M first address parameters;
the externally input compensation parameters comprise N intermediate brightness compensation parameters and N second address parameters, the intermediate brightness compensation parameters are used for adjusting the original brightness compensation parameters to generate the current brightness compensation parameters, and the N second address parameters correspond to the N intermediate brightness compensation parameters;
the first address parameter and the second address parameter are used for matching the intermediate brightness compensation parameter with the corresponding original brightness compensation parameter.
4. The luminance compensation method of a display device according to claim 3, wherein the S2 comprises:
s210, obtaining original brightness compensation parameters of N sub-display areas according to N second address parameters, wherein the N second address parameters are the same as N first address parameters corresponding to the N sub-display areas;
and S220, calculating to obtain the current brightness compensation parameters of the corresponding N sub-display areas according to the obtained original brightness compensation parameters of the N sub-display areas and the N middle brightness compensation parameters.
5. The method for compensating brightness of a display device according to claim 1, further comprising, after the S3:
s4, controlling the display panel to display the compensated picture according to the compensated data signal;
and S5, storing the N current brightness compensation parameters according to the confirmation operation input from the outside.
6. The luminance compensation method of a display device according to claim 5,
before the storing the N current brightness compensation parameters, the method further includes:
and erasing the original brightness compensation parameters of the corresponding N sub-display areas according to the externally input confirmation operation.
7. A display device, comprising:
a display panel for displaying a picture according to the data signal;
the storage unit is used for storing an original brightness compensation parameter of a sub-display area of the display panel and a first address parameter corresponding to the original brightness compensation parameter;
the control circuit board comprises a time schedule controller which is electrically connected with the display panel and the storage unit;
the input/output equipment is electrically connected with the time schedule controller, and is used for receiving an externally input control signal and sending the control signal to the time schedule controller, wherein the control signal comprises a compensation parameter and a confirmation operation;
the time sequence controller is used for calculating a current brightness compensation parameter according to the compensation parameter and transmitting the current brightness compensation parameter to the display panel, and controlling the storage unit to store the current brightness compensation parameter according to the confirmation operation.
8. The display device according to claim 7, wherein the timing controller comprises a reading module, an output module, a calculating module and a receiving module;
the receiving module is electrically connected with the input/output device and the computing module respectively and is used for transmitting the externally input compensation parameters and the confirmation operation sent by the input/output device to the computing module;
the reading module is respectively electrically connected with the storage unit and the calculating module and is used for transmitting the original brightness compensation parameter and the first address parameter to the calculating module;
the calculation module is used for calculating a current brightness compensation parameter according to the externally input compensation parameter, the original brightness compensation parameter and the first address parameter and transmitting the current brightness compensation parameter to the output module;
the output module is electrically connected with the calculation module and the display panel respectively and is used for outputting the current brightness compensation parameter transmitted by the calculation module to the display panel.
9. The display device according to claim 8, wherein the externally input compensation parameters include an intermediate luminance compensation parameter, and a second address parameter corresponding to the intermediate luminance compensation parameter, the first address parameter and the second address parameter being used to match the intermediate luminance compensation parameter with the corresponding original luminance compensation parameter.
10. The display device according to claim 9, wherein the timing controller further comprises a writing module electrically connected to the calculating module and the storage unit, respectively, for storing the current illumination compensation parameter into the storage unit according to the confirming operation.
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| CN117198196A (en) * | 2023-11-07 | 2023-12-08 | 惠科股份有限公司 | Picture compensation device, picture compensation method and display device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20190066628A1 (en) * | 2017-08-25 | 2019-02-28 | HKC Corporation Limited | Optimization method and device for brightness compensation data volume |
| CN110444152A (en) * | 2018-05-02 | 2019-11-12 | 京东方科技集团股份有限公司 | Optical compensation method and device, display device, display methods and storage medium |
| CN114283729A (en) * | 2021-12-29 | 2022-04-05 | 长沙惠科光电有限公司 | Display panel, brightness deviation compensation method thereof and display device |
| CN114495796A (en) * | 2022-02-23 | 2022-05-13 | 成都中电熊猫显示科技有限公司 | Method and apparatus for compensating for luminance unevenness, electronic device, and storage medium |
-
2022
- 2022-08-30 CN CN202211049021.3A patent/CN115359765A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20190066628A1 (en) * | 2017-08-25 | 2019-02-28 | HKC Corporation Limited | Optimization method and device for brightness compensation data volume |
| CN110444152A (en) * | 2018-05-02 | 2019-11-12 | 京东方科技集团股份有限公司 | Optical compensation method and device, display device, display methods and storage medium |
| EP3789996A1 (en) * | 2018-05-02 | 2021-03-10 | Boe Technology Group Co., Ltd. | Optical compensation method and device, display device, display method and storage medium |
| CN114283729A (en) * | 2021-12-29 | 2022-04-05 | 长沙惠科光电有限公司 | Display panel, brightness deviation compensation method thereof and display device |
| CN114495796A (en) * | 2022-02-23 | 2022-05-13 | 成都中电熊猫显示科技有限公司 | Method and apparatus for compensating for luminance unevenness, electronic device, and storage medium |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117198196A (en) * | 2023-11-07 | 2023-12-08 | 惠科股份有限公司 | Picture compensation device, picture compensation method and display device |
| CN117198196B (en) * | 2023-11-07 | 2024-02-27 | 惠科股份有限公司 | Picture compensation device, picture compensation method and display device |
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