CN107680549B - Frame rate control method - Google Patents
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- CN107680549B CN107680549B CN201711006450.1A CN201711006450A CN107680549B CN 107680549 B CN107680549 B CN 107680549B CN 201711006450 A CN201711006450 A CN 201711006450A CN 107680549 B CN107680549 B CN 107680549B
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- 238000000034 method Methods 0.000 title claims abstract description 31
- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 47
- 230000008859 change Effects 0.000 claims abstract description 17
- 230000009191 jumping Effects 0.000 claims abstract description 7
- 230000007704 transition Effects 0.000 claims description 12
- 230000000977 initiatory effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 11
- 230000004044 response Effects 0.000 description 9
- 230000000694 effects Effects 0.000 description 7
- 230000008569 process Effects 0.000 description 6
- 230000000007 visual effect Effects 0.000 description 5
- 241001270131 Agaricus moelleri Species 0.000 description 4
- 239000003086 colorant Substances 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- 230000005684 electric field Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
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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
- 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
- G09G3/2007—Display of intermediate tones
- G09G3/2077—Display of intermediate tones by a combination of two or more gradation control methods
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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
- G09G3/3611—Control of matrices with row and column drivers
- G09G3/3648—Control of matrices with row and column drivers using an active matrix
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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
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0233—Improving the luminance or brightness uniformity across the screen
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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
- G09G2340/00—Aspects of display data processing
- G09G2340/04—Changes in size, position or resolution of an image
- G09G2340/0407—Resolution change, inclusive of the use of different resolutions for different screen areas
- G09G2340/0435—Change or adaptation of the frame rate of the video stream
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Liquid Crystal (AREA)
- Liquid Crystal Display Device Control (AREA)
Abstract
The application discloses a frame rate control method for liquid crystal gray scale brightness, which comprises inputting a video signal; obtaining a refresh rate according to the video signal; judging the relation between the refresh rate and a reference value; and selecting one of the first frame rate control algorithm and the second frame rate control algorithm according to the judgment result. And the first frame rate of the first frame rate control algorithm is greater than the second frame rate of the second frame rate control algorithm, so that a plurality of continuous frames under the first frame rate provide time required by liquid crystal gray scale jumping. Starting a second frame rate control algorithm at a low refresh rate; and starting a first frame rate control algorithm under a high refresh rate, so that the target gray scale display is realized, the rotation state of the liquid crystal is close to an ideal value, and the brightness change generated by gray scale jump reaches the ideal brightness value.
Description
Technical Field
The present invention relates to a panel color enhancement technique of a display device, and more particularly, to a frame rate control method for realizing a liquid crystal gray scale.
Background
The number of bits of the image signal input to the timing controller (timing controller) is ideally the same as the number of bits that the source driving chip can process. However, in order to reduce the manufacturing cost of the liquid crystal device, a source driver chip having a slightly lower number of data processes may be used. When the color display capability of the source driver chip is close to 16.77M of 8bit by using the 6bit source driver chip or is close to 1074M of 10bit by using the 8bit source driver chip, a panel color enhancement technology of a TFT-LCD (thin film transistor-liquid crystal display), namely, an FRC (frame rate control) pixel dither algorithm technology, needs to be adopted, so that the source driver chip with a lower bit width can realize a display effect with a high bit width and richer colors.
FRC Pixel dithering Algorithm, where each time slice is changed into a sub-frame, if display 2 n Gradation of gray, 2 is required n And a sub-frame. The frame rate is the number of times of full-screen data scanned in one second, and one frame is divided into several subframes (subframes) in order to implement the FRC algorithm. The FRC frame rate control algorithm is a method for realizing target gray scale display by utilizing visual inertia of human eyes, obtaining missing colors through visual residues of human eyes and utilizing a color mixing mode. Fig. 1 shows a schematic diagram of the visual effect of gray scale modulation on human eyes, i.e. a schematic diagram of the principle of a frame rate control algorithm. The bit width of the gray scale data determines the gray scale level,generally, nFRC (n =0,1,2 …) can realize gray scale of 2 n And n is the bit width of the gray scale data.
The FRC frame rate control algorithm in the prior art does not change along with the change of the refresh rate, and when the refresh rate is increased, the time of one frame is far shorter than the response time of the liquid crystal from N order to N +1 order, so that the gray scale brightness can not reach the ideal brightness.
Therefore, there is a need to provide an improved technical solution to overcome the above technical problems in the prior art.
Disclosure of Invention
The invention provides a frame rate control method for liquid crystal gray scale brightness, which not only realizes target gray scale display, but also enables the liquid crystal rotation state to approach an ideal value, and the brightness change generated by gray scale jumping reaches the ideal brightness value. The problems in the prior art are solved.
According to the present invention, there is provided a frame rate control method including: inputting a video signal; obtaining a refresh rate according to the video signal; judging the relation between the refresh rate and a reference value; and selecting one of the first frame rate control algorithm and the second frame rate control algorithm according to the judgment result; the number of first frame periods of the first frame rate control algorithm is larger than the number of second frame periods of the second frame rate control algorithm, so that a plurality of continuous frames in the first frame period provide time required by liquid crystal gray scale jumping.
Preferably, the refresh rate is greater than the reference value, a first frame rate control algorithm is initiated; and starting a second frame rate control algorithm when the refresh rate is less than or equal to the reference value.
Preferably, the reference value is a preset refresh frequency.
Preferably, the first frame rate control algorithm is a 16 frame period frame rate control algorithm.
Preferably, the second frame rate control algorithm is an 8-frame period frame rate control algorithm.
Preferably, in the first frame rate control algorithm, the liquid crystal gray scale is hopped within 16 consecutive frame periods.
Preferably, the 16 consecutive frame periods are each formed by consecutive display of 8 frame periods.
Preferably, in the second frame rate control algorithm, the transition of the liquid crystal gray scale is completed within 8 consecutive frame periods.
Preferably, the input video signal is a high-bit-width video signal input to the timing controller.
Compared with the prior art, the method has the advantages that the 8-frame period frame rate control algorithm is started under the low refresh rate by combining the application ranges of the 8-frame period frame rate control algorithm and the 16-frame period frame rate control algorithm; under the high refresh rate, a 16-frame period frame rate control algorithm is started, not only is the target gray scale display realized, but also the liquid crystal rotation state is close to an ideal value, and the brightness change generated by the gray scale jump reaches the ideal brightness value. The problem that in the prior art, an FRC algorithm does not change along with the change of a refresh rate, and when the refresh rate is increased, the time of one frame is far shorter than the response time of liquid crystal from N order to N +1 order, so that the gray scale brightness cannot reach the ideal brightness is solved.
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The above and other objects, features and advantages of the present invention will become more apparent from the following description of the embodiments of the present invention with reference to the accompanying drawings, in which:
fig. 1 shows a schematic diagram of the principle of the frame rate control algorithm in the time domain.
Fig. 2 shows a schematic diagram of a frame rate control algorithm for 8 frame periods in the present invention.
Fig. 3 shows a schematic diagram of a frame rate control algorithm for 16 frame periods in the present invention.
FIG. 4 is a schematic diagram showing the time required for gray level transition of liquid crystal in the present invention.
Fig. 5a shows a comparison diagram of the actual and ideal gray level transition luminance curves of the frame rate control algorithm of 8 frame periods at a high refresh rate.
FIG. 5b is a graph showing the comparison of the actual and ideal gray level transition luminance curves for a frame rate control algorithm at a high refresh rate for a 16 frame period.
FIG. 6 is a flow chart illustrating a method for controlling a frame rate of liquid crystal gray scale luminance according to an embodiment of the present invention.
Detailed Description
The invention will be described in more detail below with reference to the accompanying drawings. Like elements in the various figures are denoted by like reference numerals. For purposes of clarity, the various features in the drawings are not necessarily drawn to scale. In addition, certain well known components may not be shown.
In the following description, numerous specific details of the invention, such as structure, materials, dimensions, processing techniques and techniques of the device are described to provide a more thorough understanding of the invention. However, as will be understood by those skilled in the art, the present invention may be practiced without these specific details.
The present invention may be embodied in various forms, some of which will be described below.
Fig. 1 shows a schematic diagram of the principle of the frame rate control algorithm in the time domain. The perceived brightness is the effect of the summation of all sub-frames due to the visual effect of the human eye. Assuming that each pixel can only display two colors of black and white, four continuous frames display one picture, and the gray scale is defined to be 100% when one pixel is continuously provided with four frames which are all black, and 0% when one pixel is continuously provided with four frames which are all white. As shown in fig. 1, from top to bottom, five gray levels of 100%,75%,50%,25%,0% can be generated, and it can be seen that the frame rate control algorithm FRC realizes a display in which three gray levels are added by black and white only. If one picture is displayed by adopting eight continuous frames, the frame rate control algorithm FRC can realize the display of nine different gray scales.
Fig. 2 shows a schematic diagram of a frame rate control algorithm for 8 frame periods. As shown in fig. 2, the FRC frame rate control algorithm in the figure adopts a processing method using 8 frames as a period, and obtains a missing color by using a residual effect of human eyes, and the FRC frame rate control algorithm enables a source driver chip with a lower bit width to realize a display effect with a higher bit width and richer colors. As shown in the figure, 1 frame period completes the image display corresponding to the gray scale display effect, 8 continuous frame periods display 8 gray scale images corresponding to the gray scale display result, the residual effect of human eyes is utilized, the frame rate control algorithm of 8 frame periods completes the liquid crystal gray scale jump by utilizing 8 continuous frame periods, namely, for the vision of human, the equivalent display result of continuous 8 frame periods is displayed as a gray scale image, and the display of the target liquid crystal gray scale is approximately completed by utilizing the vision residual mixed gray scale information of human eyes, namely, the display of all the liquid crystal gray scales which can be displayed by the image signal with high bit width is completed. Therefore, the image signal with high bit width input to the signal control part is converted and output into the image signal with low bit width through the FRC frame rate control algorithm.
Fig. 3 shows a schematic diagram of a frame rate control algorithm for 16 frame periods. As shown in fig. 3, the FRC frame rate control algorithm employs a processing method with a period of 16 frames. As shown in the figure, the frame rate control algorithm of 16 frame periods utilizes the residual effect of human eyes to complete the jump of the liquid crystal gray scale by 16 continuous frame periods, that is, for human vision, the equivalent display result of the continuous 16 frame periods is displayed as a gray scale picture, and the process is repeated in cycles, and the display of the target liquid crystal gray scale, that is, the display of all the liquid crystal gray scales which can be displayed by the image signal with high bit width is approximately completed by utilizing the visual residual mixed gray scale information of human eyes. The gray-scale picture displayed by the equivalent display result of the continuous 8 frame periods is formed by respectively and continuously displaying the 8 frame periods in the frame rate control algorithm of the 16 frame periods.
FIG. 4 is a schematic diagram showing the time required for gray scale transition of liquid crystal in the present invention. The Gray level response (GTG, gray To Gray) represents the time required for the liquid crystal display To transition from a base Gray level To a target Gray level. As shown in the figure, the time required for a partial gray level jump is 16.207 ms, for example, from 224 gray level to 128 gray level. The time required for jumping from the 0 gray scale or 255 gray scale to other gray scales is short.
FIG. 5a is a graph showing the comparison between the actual and ideal gray level transition luminance curves at a high refresh rate for an 8 frame period frame rate control algorithm. Referring to fig. 4, taking the case that the liquid crystal changes from N-order rotation to N + 1-order as an example, when the refresh rate is relatively low, for example, the refresh rate is 60Hz, the time per frame is about 16.7ms, which is close to or slightly longer than the time when the liquid crystal changes from N-order rotation to N + 1-order, i.e., the response time of gray scale change; when the refresh rate is 120Hz, the time per frame is about 8.3ms, which is much shorter than the time for the liquid crystal to change from N-order rotation to N + 1-order, i.e., the response time of the gray scale change. The dotted line waveform shown in fig. 5a is an ideal luminance variation curve of gray scale jump, and the solid line waveform is an actual luminance variation curve of gray scale jump. Under the condition of high refresh rate of the frame rate control algorithm with 8 frame periods, the display time of each gray scale picture is far shorter than the response time of the liquid crystal from N-order rotation to N + 1-order, so that the liquid crystal is not rotated to the state corresponding to the target gray scale when the gray scale picture is displayed. At this time, the actual gray level jump brightness can not reach the ideal gray level jump brightness. As shown in fig. 5a, when the liquid crystal changes from N-order rotation to N + 1-order, the brightness of the actual gray level jump has a deviation a from the brightness of the ideal gray level jump.
FIG. 5b is a graph showing the comparison of the actual and ideal gray level transition luminance curves for a frame rate control algorithm at a high refresh rate for a 16 frame period. As shown in fig. 5b, taking the case that the liquid crystal changes from N-order rotation to N + 1-order as an example, the dotted line waveform is an ideal luminance variation curve of gray level jump, and the solid line waveform is an actual luminance variation curve of gray level jump. Referring to fig. 4, when the refresh rate is 120Hz, the time of each frame is about 8.3ms, which is much shorter than the response time of the liquid crystal from N-order rotation to N + 1-order rotation, i.e. gray level change, and the time of two frames is 16.6ms, which is close to the response time of the liquid crystal gray level transition. The time of the electric field applied on the pixel is doubled, so that the rotation state of the liquid crystal is close to an ideal value, and the brightness change generated by the gray scale jump reaches the ideal brightness value. Under the high refresh rate, the state jump of the liquid crystal from N order to N +1 order is completed in every two frame time, the rotation state of the liquid crystal is close to the ideal value, and the brightness change generated by the gray scale jump reaches the ideal brightness value. Under the condition of a high refresh rate, the display time of each gray scale picture is close to the response time of the liquid crystal from N-order rotation to N + 1-order, so that the liquid crystal rotates to a state corresponding to the target gray scale when the gray scale picture is displayed. At this time, the jump brightness of the actual gray scale reaches the jump brightness of the ideal gray scale, and no brightness deviation exists.
FIG. 6 is a flow chart illustrating a method for controlling a frame rate of liquid crystal gray scale luminance according to an embodiment of the present invention. The frame rate control method for liquid crystal gray scale brightness of the embodiment comprises the following steps:
s301: inputting a video signal, wherein the video input signal is a high-bit-width video signal input to the time schedule controller;
s302: obtaining a refresh rate, and obtaining the refresh rate according to an input video signal;
s303: judging whether the relation between the refresh rate and a reference value is larger than the reference value, wherein the reference value is a preset refresh frequency, and selecting one of the first frame rate control algorithm and the second frame rate control algorithm according to a judgment result;
s304: starting a first frame rate control algorithm, and starting the first frame rate control algorithm when the refresh rate is greater than a reference value;
s305: and starting a second frame rate control algorithm, and starting the second frame rate control algorithm when the refresh rate is less than or equal to the reference value.
Preferably, the first frame rate control algorithm is a 16 frame period frame rate control algorithm.
Preferably, the second frame rate control algorithm is an 8 frame period frame rate control algorithm.
Preferably, the first frame rate control algorithm has a first number of frame periods greater than a second number of frame periods of the second frame rate control algorithm, such that a number of consecutive frames of the first frame period provides the time required for the liquid crystal gray scale to transition.
By combining the application range of the FRC frame rate control algorithm with 8 frame periods and the application range of the FRC frame rate control algorithm with 16 frame periods, the FRC frame rate control algorithm with 8 frame periods can realize target gray scale display under the condition of low refresh rate, and can also enable the rotation state of the liquid crystal to be close to an ideal value, and the brightness change generated by gray scale jumping reaches the ideal brightness value. The FRC frame rate control algorithm with 16 frame periods is used under the condition of high refresh rate, not only can the target gray scale display be realized, but also the liquid crystal rotation state can be close to an ideal value, and the brightness change generated by gray scale jumping reaches the ideal brightness value. Therefore, the invention combines the two algorithms, and starts the frame rate control algorithm of 8 frame periods under the low refresh rate; under the high refresh rate, a 16-frame period frame rate control algorithm is started, not only is the target gray scale display realized, but also the liquid crystal rotation state is close to an ideal value, and the brightness change generated by the gray scale jump reaches the ideal brightness value. The method solves the problems in the prior art, and needs to be explained in the 8-frame period frame rate control algorithm, the equivalent display result of continuous 8-frame periods is displayed as a gray scale picture. In the 16-frame period frame rate control algorithm, the equivalent display result of continuous 16-frame periods is displayed as a gray-scale picture. Of course, the 8-frame period frame rate control algorithm and the 16-frame period frame rate control algorithm of the present invention are preferred embodiments of the present invention, and in practical applications, a period frame rate control algorithm with other frame numbers can be adopted to solve the problems in the prior art, that is, only the requirement of completing the gray level jump in the continuous frame period in the frame algorithm is required.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a … …" does not exclude the presence of another identical element in a process, method, article, or apparatus that comprises the element.
In accordance with the present invention, the foregoing examples are not intended to be exhaustive or to limit the invention to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention and various embodiments with various modifications as are suited to the particular use contemplated. The invention is limited only by the claims and their full scope and equivalents.
Claims (7)
1. A frame rate control method, comprising:
inputting a video signal;
obtaining a refresh rate according to the video signal;
judging the relation between the refresh rate and a reference value; and
selecting one of corresponding frame rate control algorithms according to the judgment result, wherein the frame rate control algorithm comprises a first frame rate control algorithm and a second frame rate control algorithm; the first frame rate control algorithm and the second frame rate control algorithm respectively divide each gray scale picture into a plurality of continuous frames for display, and the first frame period number of the first frame rate control algorithm is greater than the second frame period number of the second frame rate control algorithm;
wherein the frame rate control algorithm changes with a change in the refresh rate, and a first frame rate control algorithm is initiated in the case that the refresh rate is greater than the reference value; initiating a second frame rate control algorithm in the event that the refresh rate is less than or equal to the reference value; under different refresh rates, the time of gray scale image display provided by the frame rate control algorithm corresponds to the time required by liquid crystal gray scale jumping.
2. The frame rate control method according to claim 1, wherein the reference value is a preset refresh rate.
3. The frame rate control method of claim 1, wherein the first frame rate control algorithm is a 16 frame period frame rate control algorithm.
4. The frame rate control method of claim 1, wherein the second frame rate control algorithm is an 8 frame period frame rate control algorithm.
5. The frame rate control method of claim 3, wherein said first frame rate control algorithm completes said liquid crystal gray level transition within 16 consecutive frame periods.
6. The frame rate control method of claim 4, wherein said second frame rate control algorithm performs said liquid crystal gray level transitions for 8 consecutive frame periods.
7. The frame rate control method according to claim 1, wherein the input video signal is a high bit width video signal input to a timing controller.
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| US11948520B2 (en) * | 2020-03-31 | 2024-04-02 | Google Llc | Variable refresh rate control using PWM-aligned frame periods |
| CN111429850A (en) * | 2020-04-08 | 2020-07-17 | 深圳市华星光电半导体显示技术有限公司 | Display panel and display method thereof |
| CN113689816B (en) * | 2021-09-02 | 2023-09-01 | Tcl华星光电技术有限公司 | Driving circuit |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997004435A1 (en) * | 1995-07-14 | 1997-02-06 | Northern Telecom Limited | Method and apparatus for producing shading on a flat panel display |
| EP1560194A2 (en) * | 2004-01-27 | 2005-08-03 | Genesis Microchip (Delaware) Inc. | Dynamically selecting either frame rate conversion (FRC) or pixel overdrive in an LCD panel based display |
| CN103702059A (en) * | 2013-12-06 | 2014-04-02 | 乐视致新电子科技（天津）有限公司 | Frame rate conversion control method and device |
| CN104053013A (en) * | 2013-03-12 | 2014-09-17 | 三星电子株式会社 | Display device applying motion compensation to remove artifacts from images and control method thereof |
| WO2016054076A1 (en) * | 2014-10-02 | 2016-04-07 | Dolby Laboratories Licensing Corporation | Dual-ended metadata for judder visibility control |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101188090B (en) * | 2006-11-17 | 2010-05-26 | 上海中航光电子有限公司 | Method for controlling color gray scale of liquid crystal display panel for liquid crystal display device |
| CN101388181B (en) * | 2007-09-14 | 2010-09-29 | 群康科技(深圳)有限公司 | Time schedule controller and LCD using the time schedule controller |
| CN101572060B (en) * | 2008-04-28 | 2011-09-28 | 群康科技(深圳)有限公司 | Liquid crystal display panel drive circuit and drive method thereof |
| CN105304048B (en) * | 2015-11-18 | 2018-03-30 | 深圳市华星光电技术有限公司 | The dynamic drive method of liquid crystal display device |
-
2017
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997004435A1 (en) * | 1995-07-14 | 1997-02-06 | Northern Telecom Limited | Method and apparatus for producing shading on a flat panel display |
| EP1560194A2 (en) * | 2004-01-27 | 2005-08-03 | Genesis Microchip (Delaware) Inc. | Dynamically selecting either frame rate conversion (FRC) or pixel overdrive in an LCD panel based display |
| CN104053013A (en) * | 2013-03-12 | 2014-09-17 | 三星电子株式会社 | Display device applying motion compensation to remove artifacts from images and control method thereof |
| CN103702059A (en) * | 2013-12-06 | 2014-04-02 | 乐视致新电子科技（天津）有限公司 | Frame rate conversion control method and device |
| WO2016054076A1 (en) * | 2014-10-02 | 2016-04-07 | Dolby Laboratories Licensing Corporation | Dual-ended metadata for judder visibility control |
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