CN113823233A - Display device and control method thereof - Google Patents
Display device and control method thereof Download PDFInfo
- Publication number
- CN113823233A CN113823233A CN202111160526.2A CN202111160526A CN113823233A CN 113823233 A CN113823233 A CN 113823233A CN 202111160526 A CN202111160526 A CN 202111160526A CN 113823233 A CN113823233 A CN 113823233A
- Authority
- CN
- China
- Prior art keywords
- display device
- brightness value
- brightness
- value
- backlight module
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 19
- 230000004044 response Effects 0.000 claims description 11
- 238000012935 Averaging Methods 0.000 claims description 2
- 230000007423 decrease Effects 0.000 claims description 2
- 230000008859 change Effects 0.000 description 12
- 238000005516 engineering process Methods 0.000 description 8
- 239000004973 liquid crystal related substance Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000001133 acceleration Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 241001270131 Agaricus moelleri Species 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
Images
Classifications
-
- 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
- G09G3/3406—Control of illumination source
-
- 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
- G09G3/3406—Control of illumination source
- G09G3/3413—Details of control of colour illumination sources
-
- 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
- G09G3/3406—Control of illumination source
- G09G3/342—Control of illumination source using several illumination sources separately controlled corresponding to different display panel areas, e.g. along one dimension such as lines
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Liquid Crystal Display Device Control (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
The application discloses a display device and a control method thereof. The display device comprises a display panel, a backlight module and a control module. The backlight module provides a light source to the display panel. The control module adjusts the brightness value of the light source of the backlight module according to the brightness value of the frame picture under different refreshing frequencies. The brightness difference is determined by comparing the brightness values of the frame pictures before and after the refresh frequency changes, and the brightness value of the light source of the backlight module is adjusted according to the brightness difference, so that the brightness difference caused by different leakage degrees of the display device under different refresh frequencies can be eliminated, and the problem that the display device flickers is solved.
Description
Technical Field
The present invention relates to the field of display technologies, and more particularly, to a display device incorporating FreeSeSync technology and a control method thereof.
Background
Generally, the refresh rate of a display device is fixed at a certain frequency during operation, for example, the most common refresh rate is 60 hertz (Hz). However, under certain conditions, it is desirable for display devices to display at a higher refresh rate, for example, display devices used in the field of electronic competitions. The FreeSeync (or called dynamic refresh rate, DRR) technology can enable the display card and the acceleration processor to directly and dynamically control the refresh frequency of the display device connected with the display card and the acceleration processor so as to solve the situation of image tearing and fluctuation and improve the game experience with smooth pictures.
The FreeSesync technology requires that the display device can realize a frequency conversion function, and the frequency of the screen display picture is automatically matched with the frequency of the picture output by the display card. However, for a display device with FreeSeync technology, the charging time is the same for each frame of high refresh rate and low refresh rate, except that the blanking period (or referred to as vertical blanking period) between two frames is not the same. As shown in fig. 1, the frame duration (which may include the frame display duration and the blank period) corresponding to the low refresh frequency is longer than the frame duration of the high refresh frequency, so the blank period is longer than the blank period of the high refresh frequency, which results in a longer leakage time of the thin film transistor in the panel, and finally the overall brightness of the panel is reduced. If the display device is switched back and forth between the high refresh frequency and the low refresh frequency in a short time according to a certain rule, the brightness difference between different refresh frequencies can cause the problem that the display screen flickers.
To solve the above problem, the conventional solution is to add a white balance data table (Multi-white tracking table) into the program code of the timing controller, and a set of tables corresponding to different refresh frequency intervals in the FreeSeync technique is used to adjust the brightness value. Theoretically, the brightness values of the gray scales of each set of tables are adjusted to be consistent, but the brightness values of different refreshing frequency intervals still have certain difference due to the influences of factors such as the limitation of calculation precision, the in-plane process technology, the liquid crystal property and the like, so that the flicker condition still occurs.
Disclosure of Invention
The application provides a display device and a control method thereof, which are used for solving the problem of flicker generated by the display device under different refresh frequencies in the prior FreeSeync technology.
In order to solve the above problems, the present application provides a display device. The display device comprises a display panel, a backlight module and a control module. The display panel includes a plurality of pixel units to form a frame picture. The backlight module is configured to provide a light source to the display panel. The control module is coupled to the display panel and the backlight module, and is configured to adjust the brightness value of the light source of the backlight module according to the brightness value of the frame image at different refresh frequencies.
In some embodiments, in response to the refresh frequency changing from a first refresh frequency to a second refresh frequency, the control module compares a first luminance value of a frame picture corresponding to the first refresh frequency with a second luminance value of the frame picture corresponding to the second refresh frequency, and adjusts a luminance value of the light source of the backlight module according to a difference between the first luminance value and the second luminance value.
In some embodiments, in response to the second brightness value being greater than the first brightness value, the control module decreases a brightness value of the light source of the backlight module.
In some embodiments, in response to the second brightness value being greater than the first brightness value, the control module increases a brightness value of the light source of the backlight module.
In some embodiments, the control module calculates a luminance value of each of the plurality of pixel units according to a formula L-0.6 × R +0.3 × G +0.1 × B, and takes an average value of the luminance values of the plurality of pixel units as a luminance value of the frame picture, where L is the luminance value of the pixel unit, and R, G, B is the luminance values of the red, green, and blue sub-pixels in the pixel unit, respectively.
In some embodiments, the display device further includes a timing controller coupled to the control module, the timing controller configured to receive a FreeSeSync signal from a display card connected to the display device, wherein the control module obtains a refresh frequency of the display device according to the FreeSeSync signal.
The application also provides a control method for the display device. The control method comprises the following steps: detecting the brightness value of a frame picture of a display device under a refreshing frequency; in response to the refresh frequency changing from a first refresh frequency to a second refresh frequency, comparing a first brightness value of the frame picture corresponding to the first refresh frequency with a second brightness value of the frame picture corresponding to the second refresh frequency to obtain a brightness difference value; and adjusting the brightness value of a light source of a backlight module of the display device according to the brightness difference value.
In some embodiments, the adjusting the brightness value of the light source of the backlight module of the display device according to the brightness difference value includes: and when the second refreshing frequency is greater than the first refreshing frequency, reducing the brightness value of the light source of the backlight module.
In some embodiments, the adjusting the brightness value of the light source of the backlight module of the display device according to the brightness difference value includes: and when the second refreshing frequency is less than the first refreshing frequency, increasing the brightness value of the light source of the backlight module.
In some embodiments, the detecting the brightness value of the frame of the display device at the current refresh frequency includes: calculating a luminance value of each pixel unit corresponding to the plurality of pixel units of the frame picture at the refresh frequency according to a formula L-0.6R + 0.3G + 0.1B, where L is the luminance value of the pixel unit, and R, G, B are the luminance values of the red sub-pixel, the green sub-pixel, and the blue sub-pixel in the pixel unit, respectively; and averaging the brightness values of the plurality of pixel units to obtain the brightness value of the frame picture under the refreshing frequency.
In summary, the control module of the display device detects the change of the FreeSeync signal of the timing controller (i.e., the change of the refresh frequency) in real time, compares the first brightness value of the frame before the refresh frequency is changed with the second brightness value of the frame after the refresh frequency is changed to determine the brightness difference, and adjusts the output brightness value of the backlight module of the display device according to the brightness difference so that the second brightness value is the same as the first brightness value, thereby eliminating the brightness difference of the display device caused by the difference of the leakage degrees at different refresh frequencies, and improving the problem of the display device flickering.
Drawings
The technical solution and other advantages of the present application will become apparent from the detailed description of the embodiments of the present application with reference to the accompanying drawings.
FIG. 1 shows a schematic diagram of frame durations at a high refresh rate and a low refresh rate in a prior art FreeSesync technique;
FIG. 2 is a block diagram of a display device shown in accordance with some embodiments of the present invention;
FIG. 3 is a flow chart illustrating a control method according to some embodiments of the invention.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. 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 invention.
Fig. 2 is a block diagram illustrating a display device 200 according to some embodiments of the invention. The display device 200 may include a timing controller 210, a driver 220, a display panel 230, a backlight module 240, and a control module 250. In the present embodiment, the display device 200 incorporates the FreeSesync technology, and the refresh frequency can be dynamically adjusted according to the video card connected thereto. The display device 200 is, for example, a liquid crystal display applied to a personal computer, a tablet, or a mobile phone. The timing controller 210 is configured to provide timing signals (e.g., clock signals) and control signals to the driver 220 to control the timing of the driver output signals. The driver 220 is electrically coupled to the timing controller 210 and the display panel 230, and configured to output a scan signal and a data signal to corresponding pixel units in the display panel 230 according to a timing signal and a control signal provided by the timing controller 210 to control a gray level of the pixel units, thereby changing a twist degree of liquid crystal in the display panel 230. The backlight module 240 is configured to provide light sources to the display panel 230, wherein the light sources have different intensities when passing through the liquid crystals with different twist degrees, and then generate different colors through the color filters of the display panel 230 to form a frame. The control module 250 is electrically coupled to the timing controller 210, the display panel 230 and the backlight module 240, and configured to receive the FreeSesync signal from the timing controller 210, and adjust the brightness value of the light source of the backlight module 240 according to the brightness value of the frame image corresponding to different refresh frequencies of the FreeSesync signal, so as to eliminate the flicker problem caused by the brightness difference during the FreeSesync process.
In some embodiments, the light source of the backlight module 240 may include a Cold Cathode Fluorescent Lamp (CCFL) or a light-emitting diode (LED). In the embodiment, the light source of the backlight module 240 is a light emitting diode, and the brightness of the output can be adjusted according to the magnitude of the received driving current (e.g., the current output from the power module). The backlight module 240 may be an edge-light type backlight module or a direct-light type backlight module, which is not limited in the present invention. In some embodiments, the backlight module 240 may further include a reflective plate, a light guide plate, a diffusion sheet, a brightness enhancement film (prism sheet), and the like, as required.
Specifically, the control module 250 may obtain the FreeSeSync signal from the timing controller 210 to receive the current refresh frequency. The timing controller 210 may obtain the freessync signal from an interface of a display card connected to the display device 200, and the freessync signal may include a refresh frequency required by a current display card. The control module 250 can monitor the refresh frequency in real time through the FreeSesync signal and detect the brightness value of the frame at the refresh frequency. When the control module 250 finds that the refresh frequency changes, i.e., in response to the refresh frequency changing from the first refresh frequency to the second refresh frequency, the control module 250 can compare the first luminance value of the frame corresponding to the first refresh frequency with the second luminance value of the frame corresponding to the second refresh frequency. When the two have a difference, the control module 250 may adjust the brightness value of the light source of the backlight module 240, for example, by adjusting the driving current to the backlight module 240 (for example, controlling the current output by the power module to the backlight module 240), so that the brightness value (i.e., the second brightness value) of the frame image of the display panel 230 at the second refresh frequency (i.e., the changed refresh frequency) is the same as the brightness value (i.e., the first brightness value) of the frame image at the first refresh frequency (i.e., the refresh frequency before the change), thereby eliminating the flicker problem caused by the brightness difference occurring when the frequency is changed in the fresync.
In some embodiments, when the second refresh rate is greater than the first refresh rate, the control module 250 detects that the second brightness value of the frame corresponding to the second refresh rate is greater than the first brightness value of the frame corresponding to the first refresh rate. At this time, the control module 250 may reduce the driving current provided to the backlight module 240 so that the luminance output by the backlight module 240 becomes smaller, thereby reducing the second luminance value of the frame of the display panel 230 to be the same as the first luminance value.
In some embodiments, when the second refresh rate is less than the first refresh rate, the control module 250 detects that the second brightness value of the frame corresponding to the second refresh rate is less than the first brightness value of the frame corresponding to the first refresh rate. At this time, the control module 250 increases the driving current provided to the backlight module 240 to increase the luminance output by the backlight module 240, so as to increase the second luminance value of the frame of the display panel 230 to be the same as the first luminance value.
In some embodiments, in response to a change in refresh frequency, the control module 250 may: the luminance value of each pixel unit of the frame picture at different refresh frequencies is calculated, where L is the luminance value of the pixel unit, R, G, B are the luminance values of the red, green, and blue sub-pixels in the pixel unit, respectively, and the average value of the luminance values of all the pixel units of the frame picture corresponding to the first refresh rate (i.e., the first luminance value) is compared with the average value of the luminance values of all the pixel units of the frame picture corresponding to the second refresh rate (i.e., the second luminance value) to determine whether the luminance has a difference.
The change of FreeSeync signals of the timing controller (namely, the change of the refresh frequency) is detected in real time through a control module of the display device, a first brightness value of a frame image before the change of the refresh frequency is compared with a second brightness value of the frame image after the change of the refresh frequency to determine a brightness difference, and an output brightness value of a backlight module of the display device is adjusted according to the brightness difference to enable the second brightness value to be the same as the first brightness value, so that the brightness difference caused by different leakage degrees of the display device under different refresh frequencies can be eliminated, and the problem that the display device can flicker is solved.
Referring to fig. 3, fig. 3 is a flow chart illustrating a control method 300 according to some embodiments of the invention. The control method 300 may be applied to the display apparatus 200 of fig. 2. First, in step S310, a FreeSync signal is acquired to obtain the current refresh frequency. The FreeSesync signal may be from a display card connected to the display device 200, the timing controller 210 may receive the FreeSesync signal through an interface connected to the display card, and the control module 250 may obtain the FreeSesync signal through the timing controller 210, wherein the FreeSesync signal may include a refresh frequency required by a current display card.
In step S330, the brightness value of the frame at the current refresh frequency is detected. As previously described, by the control module 250 of the display apparatus 200, according to the formula: calculating a luminance value of each pixel unit in the frame picture by L-0.6 × R +0.3 × G +0.1 × B, where L is the luminance value of the pixel unit, R, G, B are the luminance values of the red, green, and blue sub-pixels in the pixel unit, respectively, and taking the average value of the luminance values of all the pixel units as the luminance value of the frame picture.
In step S350, in response to the refresh frequency changing from the first refresh frequency to the second refresh frequency, a first luminance value of the frame picture corresponding to the first refresh frequency is compared with a second luminance value of the frame picture corresponding to the second refresh frequency to obtain a luminance difference value. Specifically, the control module 250 calculates the difference between the brightness value of the frame before the refresh frequency is changed and the brightness value of the frame after the refresh frequency is changed, so as to determine the difference between the frame before and after the refresh frequency is changed, and accordingly perform the corresponding adjustment.
In step S370, the brightness of the light source of the backlight module is adjusted according to the brightness difference value, so that the second brightness value is adjusted to be the same as the first brightness value. Specifically, the driving current provided to the backlight module 240 (e.g., the current output by the control power module to the backlight module 240) is adjusted by the control module 250 according to the difference value of the brightness values to adjust the brightness of the light source of the backlight module 240, so that the second brightness value of the frame image after the refresh frequency is changed of the display panel 230 is adjusted to be the same as the brightness value of the frame image before the refresh frequency is changed, thereby eliminating the flicker problem caused by the brightness difference occurring when the frequency is changed in the FreeSeync.
In some embodiments, when the changed refresh frequency (i.e., the second refresh frequency) is greater than the refresh frequency before the change (i.e., the first refresh frequency), the second luminance value of the frame detected by the control module 250 is greater than the first luminance value. At this time, the control module 250 reduces the brightness value of the light source of the backlight module, for example, the control module 250 reduces the driving current provided by the power module to the backlight module 240, so that the brightness output by the backlight module 240 is reduced, thereby reducing the second brightness value of the frame of the display panel 230 to be the same as the first brightness value. When the changed refresh frequency is less than the refresh frequency before the change, the second brightness value of the frame detected by the control module 250 is less than the first brightness value. At this time, the control module 250 increases the brightness value of the light source of the backlight module, for example, the control module 250 increases the driving current provided by the power module to the backlight module 240 to increase the brightness output by the backlight module 240, so that the second brightness value of the frame of the display panel 230 is increased and is the same as the first brightness value.
In summary, based on the display device and the control method, the control module of the display device detects the change of the FreeSeync signal of the timing controller (i.e., the change of the refresh frequency) in real time, compares the first brightness value of the frame before the refresh frequency is changed with the second brightness value of the frame after the refresh frequency is changed to determine the brightness difference, and adjusts the output brightness value of the backlight module of the display device according to the brightness difference so that the second brightness value is the same as the first brightness value, thereby eliminating the brightness difference caused by the difference of the leakage degrees of the display device at different refresh frequencies, and improving the problem of the display device flickering.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A display device, comprising:
a display panel including a plurality of pixel units to form a frame picture;
a backlight module configured to provide a light source to the display panel; and
the control module is coupled to the display panel and the backlight module, and is configured to adjust the brightness value of the light source of the backlight module according to the brightness value of the frame image at different refresh frequencies.
2. The display device according to claim 1, wherein in response to the refresh frequency changing from a first refresh frequency to a second refresh frequency, the control module compares a first luminance value of a frame picture corresponding to the first refresh frequency with a second luminance value of a frame picture corresponding to the second refresh frequency and adjusts the luminance value of the light source of the backlight module according to a difference between the first luminance value and the second luminance value.
3. The display device according to claim 2, wherein the control module decreases the brightness value of the light source of the backlight module in response to the second brightness value being greater than the first brightness value.
4. The display device according to claim 2, wherein the control module increases the brightness value of the light source of the backlight module in response to the second brightness value being greater than the first brightness value.
5. The display device according to claim 1, wherein the control module calculates a luminance value of each of the plurality of pixel units according to a formula L-0.6R + 0.3G + 0.1B, where L is the luminance value of the pixel unit, and R, G, B is the luminance values of the red, green, and blue sub-pixels in the pixel unit, respectively, and takes an average of the luminance values of the plurality of pixel units as the luminance value of the frame picture.
6. The display device of claim 1, further comprising a timing controller coupled to the control module, the timing controller configured to receive a FreeSeSync signal from a graphics card connected to the display device, wherein the control module derives a refresh frequency of the display device according to the FreeSeSync signal.
7. A control method for a display device, comprising:
detecting the brightness value of a frame picture of a display device under a refreshing frequency;
in response to the refresh frequency changing from a first refresh frequency to a second refresh frequency, comparing a first brightness value of the frame picture corresponding to the first refresh frequency with a second brightness value of the frame picture corresponding to the second refresh frequency to obtain a brightness difference value; and
and adjusting the brightness value of a light source of a backlight module of the display device according to the brightness difference value.
8. The method according to claim 7, wherein the step of adjusting the brightness value of the light source of the backlight module of the display device according to the brightness difference comprises:
and when the second refreshing frequency is greater than the first refreshing frequency, reducing the brightness value of the light source of the backlight module.
9. The method according to claim 7, wherein the step of adjusting the brightness value of the light source of the backlight module of the display device according to the brightness difference comprises:
and when the second refreshing frequency is less than the first refreshing frequency, increasing the brightness value of the light source of the backlight module.
10. The method as claimed in claim 7, wherein the step of detecting the luminance value of the frame of the display device at the refresh frequency comprises:
calculating a luminance value of each pixel unit corresponding to the plurality of pixel units of the frame picture at the refresh frequency according to a formula L-0.6R + 0.3G + 0.1B, where L is the luminance value of the pixel unit, and R, G, B are the luminance values of the red sub-pixel, the green sub-pixel, and the blue sub-pixel in the pixel unit, respectively; and
and averaging the brightness values of the plurality of pixel units to obtain the brightness value of the frame picture at the refreshing frequency.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111160526.2A CN113823233A (en) | 2021-09-30 | 2021-09-30 | Display device and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111160526.2A CN113823233A (en) | 2021-09-30 | 2021-09-30 | Display device and control method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113823233A true CN113823233A (en) | 2021-12-21 |
Family
ID=78916024
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111160526.2A Pending CN113823233A (en) | 2021-09-30 | 2021-09-30 | Display device and control method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113823233A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114283750A (en) * | 2021-12-22 | 2022-04-05 | Tcl华星光电技术有限公司 | Display device and display method thereof |
| CN115116411A (en) * | 2022-05-17 | 2022-09-27 | 广西世纪创新显示电子有限公司 | Method for eliminating terminal screen flicker |
| WO2023225914A1 (en) * | 2022-05-25 | 2023-11-30 | 京东方科技集团股份有限公司 | Driving method for display panel, and display apparatus |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105074807A (en) * | 2013-03-13 | 2015-11-18 | 苹果公司 | Compensation methods for display brightness change associated with reduced refresh rate |
| CN108335677A (en) * | 2018-02-11 | 2018-07-27 | 京东方科技集团股份有限公司 | Luminance compensation method, luminance compensating mechanism and display device |
| CN108389552A (en) * | 2018-03-19 | 2018-08-10 | 京东方科技集团股份有限公司 | Backlight illumination processing method and system, back light brightness regulating method, storage medium |
| CN108806620A (en) * | 2018-07-17 | 2018-11-13 | 苏州佳世达电通有限公司 | Luminance compensation method and its system |
| CN110491351A (en) * | 2019-09-27 | 2019-11-22 | 京东方科技集团股份有限公司 | A kind of driving method of display panel, its driving device and display device |
| CN111540331A (en) * | 2020-05-27 | 2020-08-14 | Tcl华星光电技术有限公司 | Brightness compensation method and device and brightness compensation system |
| CN111640390A (en) * | 2020-06-30 | 2020-09-08 | 京东方科技集团股份有限公司 | Display screen flicker adjusting circuit and method and display device |
| CN111798787A (en) * | 2020-07-09 | 2020-10-20 | 昆山国显光电有限公司 | Method, device and system for adjusting brightness of display panel |
| CN111883070A (en) * | 2020-07-30 | 2020-11-03 | 重庆惠科金渝光电科技有限公司 | Driving method and driving module of display panel and display device |
-
2021
- 2021-09-30 CN CN202111160526.2A patent/CN113823233A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105074807A (en) * | 2013-03-13 | 2015-11-18 | 苹果公司 | Compensation methods for display brightness change associated with reduced refresh rate |
| CN108335677A (en) * | 2018-02-11 | 2018-07-27 | 京东方科技集团股份有限公司 | Luminance compensation method, luminance compensating mechanism and display device |
| CN108389552A (en) * | 2018-03-19 | 2018-08-10 | 京东方科技集团股份有限公司 | Backlight illumination processing method and system, back light brightness regulating method, storage medium |
| CN108806620A (en) * | 2018-07-17 | 2018-11-13 | 苏州佳世达电通有限公司 | Luminance compensation method and its system |
| CN110491351A (en) * | 2019-09-27 | 2019-11-22 | 京东方科技集团股份有限公司 | A kind of driving method of display panel, its driving device and display device |
| CN111540331A (en) * | 2020-05-27 | 2020-08-14 | Tcl华星光电技术有限公司 | Brightness compensation method and device and brightness compensation system |
| CN111640390A (en) * | 2020-06-30 | 2020-09-08 | 京东方科技集团股份有限公司 | Display screen flicker adjusting circuit and method and display device |
| CN111798787A (en) * | 2020-07-09 | 2020-10-20 | 昆山国显光电有限公司 | Method, device and system for adjusting brightness of display panel |
| CN111883070A (en) * | 2020-07-30 | 2020-11-03 | 重庆惠科金渝光电科技有限公司 | Driving method and driving module of display panel and display device |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114283750A (en) * | 2021-12-22 | 2022-04-05 | Tcl华星光电技术有限公司 | Display device and display method thereof |
| US12073798B2 (en) | 2021-12-22 | 2024-08-27 | Tcl China Star Optoelectronics Technology Co., Ltd. | Display device and display method thereof |
| CN115116411A (en) * | 2022-05-17 | 2022-09-27 | 广西世纪创新显示电子有限公司 | Method for eliminating terminal screen flicker |
| CN115116411B (en) * | 2022-05-17 | 2023-08-04 | 广西世纪创新显示电子有限公司 | Method for eliminating terminal screen flicker |
| WO2023225914A1 (en) * | 2022-05-25 | 2023-11-30 | 京东方科技集团股份有限公司 | Driving method for display panel, and display apparatus |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108335677B (en) | Luminance compensation method, luminance compensation device, and display device | |
| US8803925B2 (en) | Liquid crystal display and scanning back light driving method thereof | |
| US9672792B2 (en) | Display device and driving method thereof | |
| CN112767867B (en) | Display panel and brightness compensation method and device thereof | |
| KR102353218B1 (en) | Display apparatus and method for driving thereof | |
| US7505016B2 (en) | Apparatus and method for driving liquid crystal display device | |
| EP3340227B1 (en) | Display apparatus and method for driving the same | |
| JP5319772B2 (en) | Liquid crystal display device and light source control method | |
| US9019194B2 (en) | Display device and driving method to control frequency of PWM signal | |
| CN102298908B (en) | Dimming method for light-emitting diode (LED) liquid crystal module and direct type LED liquid crystal module | |
| CN111640390A (en) | Display screen flicker adjusting circuit and method and display device | |
| CN113823233A (en) | Display device and control method thereof | |
| JP5314138B2 (en) | Liquid crystal display device and light source control method | |
| CN109036295A (en) | Image display processing method and device, display device and storage medium | |
| US20130093803A1 (en) | Display control method, display control apparatus, liquid crystal display apparatus, display control program, and computer readable recording medium | |
| KR20130018493A (en) | Display device and driving method thereof | |
| KR101021444B1 (en) | Field Sequential color LCD and driving method thereof | |
| CN110379362B (en) | Driving method of display device | |
| US20120086628A1 (en) | Liquid crystal display device and light source control method | |
| WO2022116408A1 (en) | Brightness compensation method, brightness compensation device, and display device | |
| WO2023005867A1 (en) | Backlight compensation method, device and system, and storage medium | |
| US20120306938A1 (en) | Lcd device and driving method thereof | |
| US8576158B2 (en) | Contrast ratio promotion method | |
| KR101126499B1 (en) | Liquid Crystal Display device and method for driving the same | |
| US20110273484A1 (en) | Method for controlling the display circuit and backlight of a display device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20211221 |