CN109658901A - The charging method and device of three grid panel sprites - Google Patents
The charging method and device of three grid panel sprites Download PDFInfo
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- CN109658901A CN109658901A CN201910153584.9A CN201910153584A CN109658901A CN 109658901 A CN109658901 A CN 109658901A CN 201910153584 A CN201910153584 A CN 201910153584A CN 109658901 A CN109658901 A CN 109658901A
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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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- Crystallography & Structural Chemistry (AREA)
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- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
The present invention relates to the charging methods and device of a kind of three grid panel sprites.The charging method of the three grids panel sprite includes: step 10, the luma data for obtaining three grid panels, one sprite；Step 20 detects high gray value H and low grayscale value 0 in the luma data of the sprite, determines that source electrode chip exports the output timing of each high gray value H and low grayscale value 0；Step 30, when showing the sprite, when exporting the low grayscale value 0 before high gray value H, source electrode chip is exported with supplementing Value with money in advance instead of low grayscale value 0, then replaces high gray value H to be exported with over-voltage offset.The present invention also provides the charging units of corresponding three grids panel sprite.The charging method and device of three grid panel sprites of the invention reduce sprite grayscale pressure difference, promote the pixel voltage rise time, solve the problems, such as three grid panel sprite charging ability deficiencies.
Description
Technical field
The present invention relates to field of display technology, more particularly to a kind of charging method and dress of three grid panel sprites
It sets.
Background technique
TFT (Thin Film Transistor) LCD, that is, thin film transistor LCD, is active matrix type liquid crystal
One of display (AM-LCD).Liquid crystal display, special TFT-LCD is currently the only in brightness, contrast, power consumption, longevity
It is caught up with comprehensively in the comprehensive performances such as life, volume and weight and the display device more than CRT, its function admirable is mass produced
Characteristic is good, and high degree of automation, the cost of raw material is cheap, and development space is wide, will rapidly become the main product of new century, is
The bright spot that 21 century global economy increases.
Current panel market tends to be saturated, and the market price constantly reduces, and in order to seek profit, improving innovation reduces cost gesture
It must go.In order to reduce the number of source electrode (Source) driving chip (IC), cost is reduced, there has been proposed three grids of panel
(tri gate) framework, i.e. grid (gate) number of scanning lines quantitative change are 3 times originally, and source driving chip quantity becomes original
1/3, substantially reduce cost.
For three grid panel of ultrahigh resolution (UD), for tri- sub-pixels of BGR in being vertically arranged, scan frequency is common
(normal) three times of panel, every a line charging time are the one third of general panels, be easy to cause undercharge.
Existing source electrode line over-voltage compensation (OD) technology is being changed to current scan line, and luma data by preceding scan line
When changing between low ash rank and high gray, it is first charged into more high/low gray scale voltage in advance, then be charged into normal gray scale voltage, so that working as
Point (dot) in preceding scan line can quickly charge and discharge.
It is sprite luma data schematic diagram referring to Fig. 1, to illustrate the luma data of sprite, draws
Face 1 is red (R) picture that grayscale is 255, and picture 2 is green (G) picture that grayscale is 127, and picture 3 is the indigo plant that grayscale is 64
Color (B) picture.For sprite, when luma data changes according to grayscale 0 → H sequence, source electrode line over-voltage compensation is so that low ash
The pressure difference of rank value 0 → high gray value H increases, and pixel voltage time-to-climb can become longer.For example, using over-voltage in the prior art
When compensation technique, if high gray value H is 127 grayscale, corresponding over-voltage offset can be 200 grayscale, if high gray value H is
When 180 grayscale, over-voltage offset can be 255 grayscale, and for being greater than high gray value H when 180 grayscale, over-voltage offset can be with
It is 255 grayscale, then there is the risk that can not be full of in time greater than 180 gray scale voltages.
It referring to fig. 2, is existing source electrode line over-voltage compensation technique effect diagram, G127 indicates green grayscale 127 in figure
Sprite, the grayscale value H of green sub-pixels is 127, and the grayscale value of adjacent red sub-pixel and blue subpixels is 0,
When using over-voltage compensation technique, corresponding over-voltage offset is 200 grayscale, and the length of OD is for indicating over-voltage offset and high ash
Pressure difference between rank value H.
Summary of the invention
Therefore, it the purpose of the present invention is to provide the charging method and device of a kind of three grid panel sprites, solves
Three grid panel sprite charging ability deficiency problems.
To achieve the above object, the present invention provides a kind of charging methods of three grid panel sprites, comprising:
Step 10, the luma data for obtaining three grid panels, one sprite；
Step 20 detects high gray value H and low grayscale value 0 in the luma data of the sprite, determines source electrode chip
Export the output timing of each high gray value H and low grayscale value 0；
Step 30, when showing the sprite, when exporting the low grayscale value 0 before high gray value H, source electrode chip is with preliminary filling
Value Value replaces low grayscale value 0 to be exported, and then replaces high gray value H to be exported with over-voltage offset.
Wherein, Value satisfaction is supplemented with money in advance:
Wherein n is natural number, and m1, m2, m (n-2) ... ... m (n-1) are incremented by and less than 255.
Wherein supplementing Value with money in advance is 1 or 2 or 3.
Wherein, Value satisfaction is supplemented with money in advance:
The present invention also provides a kind of charging units of three grid panel sprites, comprising:
Module is obtained, for obtaining the luma data of three grid panels, one sprite；
Detecting module, the high gray value H and low grayscale value 0 in luma data for detecting the sprite, determines source
Pole piece piece exports the output timing of each high gray value H and low grayscale value 0；
Preliminary filling module is used for when showing the sprite, when exporting the low grayscale value 0 before high gray value H, voltage input
Pole piece piece is exported with supplementing Value with money in advance instead of low grayscale value 0, and then source electrode chip replaces high gray value with over-voltage offset
H is exported.
Wherein, Value satisfaction is supplemented with money in advance:
Wherein n is natural number, and m1, m2, m (n-2) ... ... m (n-1) are incremented by and less than 255.
Wherein supplementing Value with money in advance is 1 or 2 or 3.
Wherein, Value satisfaction is supplemented with money in advance:
To sum up, the charging method of three grid panel sprites of the invention and device reduce sprite grayscale pressure difference,
The pixel voltage rise time is promoted, solves the problems, such as three grid panel sprite charging ability deficiencies.
Detailed description of the invention
With reference to the accompanying drawing, by the way that detailed description of specific embodiments of the present invention, technical solution of the present invention will be made
And other beneficial effects are apparent.
In attached drawing,
Fig. 1 is sprite luma data schematic diagram；
Fig. 2 is existing source electrode line over-voltage compensation technique effect diagram；
Fig. 3 is voltage-gray scale curve schematic diagram；
Fig. 4 is voltage-penetrance curve synoptic diagram；
Fig. 5 is the effect diagram of one embodiment of charging method of three grid panel sprites of the invention；
Fig. 6 is the flow chart of the charging method of three grid panel sprites of the invention.
Specific embodiment
Fig. 3 is voltage-gray scale curve schematic diagram, and horizontal axis indicates voltage, and the longitudinal axis indicates grayscale, with the vertical of normally black mode
It is painted voltage-gray scale curve for orientation (VA) panel, is needed when gray scale variation when low ash rank known to its voltage-gray scale curve
Gamma (Gamma) voltage higher gray scale it is big.As shown in Fig. 3, for grayscale 0 to the gray scale variation of grayscale 1, pressure difference is about 200
Millivolt, pressure difference needed for gray scale variation is less about tens millivolts when other grayscale, such as the grayscale of grayscale 254 to grayscale 255 becomes
When change, pressure difference is about 50~60 millivolts.
Fig. 4 is voltage-penetrance curve synoptic diagram, and voltage-penetrance curve as shown in Figure 4 is it is found that ash when low ash rank
Rank, which changes, influences very little to the penetrance of panel.
According to Fig. 3 and Fig. 4, the present invention can solve three grid panel sprite charging abilities deficiencies, give each grayscale
Lesser over-voltage offset is designed, and makes that each gray scale voltage pixel can be full of in time.
Referring to Fig. 6, for the flow chart of the charging method of three grid panel sprites of the invention, the present invention is mainly wrapped
It includes:
Step 10, the luma data for obtaining three grid panels, one sprite；For example, according to tri- sub-pixels of BGR
Put in order, sprite luma data can be 0 0H (0H 0 or H 0 0), wherein high gray value H correspond to it is to be shown
Color.
Step 20 detects high gray value H and low grayscale value 0 in the luma data of the sprite, determines source electrode chip
Export the output timing of each high gray value H and low grayscale value 0；According to the luma data of sprite, the big of high gray value H is detected
Small, i.e., the grayscale value of particular sub-pixel, may further determine each sub- picture in sprite as in figure 1 in detecting sprite
The corresponding grayscale value of element and output timing.
Step 30, when showing the sprite, when exporting the low grayscale value 0 before high gray value H, source electrode chip is with preliminary filling
Value Value replaces low grayscale value 0 to be exported, and then replaces high gray value H to be exported with over-voltage offset.According to Fig. 3 and
Fig. 4, the gamma electric voltage higher gray scale needed when gray scale variation when due to low ash rank it is big, and when low ash rank gray scale variation to panel
Penetrance influence very little, by by a grayscale value adjacent before its high gray value H be 0 replace with it is pre- supplement Value with money, with
It supplements Value with money in advance to be exported instead of low grayscale value 0 to realize and shift to an earlier date preliminary filling, reduces grayscale pressure when showing sprite
Difference improves the pixel voltage rise time, so as to make pixel obtain corresponding to high gray value H with smaller over-voltage offset
Gray scale voltage.
Wherein, supplementing Value and high gray value H with money in advance is natural number, and the selection range for supplementing Value with money in advance can be according to Fig. 3
And the principle of Fig. 4 determines.The formula for supplementing Value with money in advance can be set as:
Wherein n is natural number, and m1, m2, m (n-2) ... ... m (n-1) are incremented by and less than 255.For example, before can setting
End is that the BGR grayscale value of image data input is 111, and it is 33 that source driving chip, which can be set as output grayscale value, at this time
3 pixel voltage.It, can be by grayscale before luma data becomes high gray value H from low grayscale value 0 when showing sprite
Value 0 is replaced with grayscale value 1 or 2 or 3, realizes preliminary filling, and supplementing Value with money in advance at this time is 1 or 2 or 3, so as to smaller over-voltage benefit
It repays value and obtains high gray value H.At this time according to the pre- formula for supplementing Value with money above-mentioned, n=3, m1 and m2 can be further set separately
It is 40 and 100, the formula for supplementing Value with money in advance at this time may be set to:
Referring to Fig. 5, for the effect diagram of one embodiment of charging method of three grid panel sprites of the invention.Figure
Middle G127 indicates that the sprite of green grayscale 127, the grayscale value H of green sub-pixels are 127, it is proposed, according to the invention, adjacent indigo plant
The grayscale value of color sub-pixels is 3 by 0 preliminary filling, realizes preliminary filling, so that corresponding over-voltage offset can be reduced to 160 grayscale,
The length of OD is used to indicate the pressure difference between over-voltage offset and high gray value H in Fig. 5.By by adjacent blue sub-pixels
Grayscale value by 0 preliminary filling be 3, reduce sprite grayscale pressure difference, improve the pixel voltage rise time, improve monochrome
Face charging ability.
Further, the charging method of three grids panel sprite according to the present invention, the present invention also provides one kind three
The charging unit of grid panel sprite, specifically includes that
Module is obtained, for obtaining the luma data of three grid panels, one sprite；
Detecting module, the high gray value H and low grayscale value 0 in luma data for detecting the sprite, determines source
Pole piece piece exports the output timing of each high gray value H and low grayscale value 0；
Preliminary filling module is used for when showing the sprite, when exporting the low grayscale value 0 before high gray value H, voltage input
Pole piece piece is exported with supplementing Value with money in advance instead of low grayscale value 0, and then source electrode chip replaces high gray value with over-voltage offset
H is exported.
To sum up, the charging method of three grid panel sprites of the invention and device reduce sprite grayscale pressure difference,
The pixel voltage rise time is promoted, solves the problems, such as three grid panel sprite charging ability deficiencies.
The above for those of ordinary skill in the art can according to the technique and scheme of the present invention and technology
Other various corresponding changes and modifications are made in design, and all these change and modification all should belong to the appended right of the present invention
It is required that protection scope.
Claims (8)
1. a kind of charging method of three grid panel sprites characterized by comprising
Step 10, the luma data for obtaining three grid panels, one sprite；
Step 20 detects high gray value H and low grayscale value 0 in the luma data of the sprite, determines that source electrode chip exports
The output timing of each high gray value H and low grayscale value 0；
Step 30, when showing the sprite, when exporting the low grayscale value 0 before high gray value H, source electrode chip to supplement with money in advance
Value replaces low grayscale value 0 to be exported, and then replaces high gray value H to be exported with over-voltage offset.
2. the charging method of three grids panel sprite as described in claim 1, which is characterized in that it is full to supplement Value with money in advance
Foot:
Wherein n is natural number, and m1, m2, m (n-2) ... ... m (n-1) are incremented by and less than 255.
3. the charging method of three grids panel sprite as described in claim 1, which is characterized in that wherein supplement with money in advance
Value is 1 or 2 or 3.
4. the charging method of three grids panel sprite as claimed in claim 3, which is characterized in that it is full to supplement Value with money in advance
Foot:
5. a kind of charging unit of three grid panel sprites characterized by comprising
Module is obtained, for obtaining the luma data of three grid panels, one sprite；
Detecting module, the high gray value H and low grayscale value 0 in luma data for detecting the sprite, determines source electrode core
Piece exports the output timing of each high gray value H and low grayscale value 0；
Preliminary filling module is used for when showing the sprite, when exporting the low grayscale value 0 before high gray value H, voltage input pole piece
Piece is exported with supplementing Value with money in advance instead of low grayscale value 0, then source electrode chip with over-voltage offset replace high gray value H into
Row output.
6. the charging unit of three grids panel sprite as claimed in claim 5, which is characterized in that it is full to supplement Value with money in advance
Foot:
Wherein n is natural number, and m1, m2, m (n-2) ... ... m (n-1) are incremented by and less than 255.
7. the charging unit of three grids panel sprite as described in claim 1, which is characterized in that wherein supplement with money in advance
Value is 1 or 2 or 3.
8. the charging unit of three grids panel sprite as claimed in claim 7, which is characterized in that it is full to supplement Value with money in advance
Foot:
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910153584.9A CN109658901B (en) | 2019-02-28 | 2019-02-28 | Charging method and device for monochrome picture of three-grid panel |
| PCT/CN2019/078604 WO2020172922A1 (en) | 2019-02-28 | 2019-03-19 | Charging method and device for monochromatic picture of tri-gate panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910153584.9A CN109658901B (en) | 2019-02-28 | 2019-02-28 | Charging method and device for monochrome picture of three-grid panel |
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| Publication Number | Publication Date |
|---|---|
| CN109658901A true CN109658901A (en) | 2019-04-19 |
| CN109658901B CN109658901B (en) | 2021-07-06 |
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| CN201910153584.9A Active CN109658901B (en) | 2019-02-28 | 2019-02-28 | Charging method and device for monochrome picture of three-grid panel |
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| CN (1) | CN109658901B (en) |
| WO (1) | WO2020172922A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111445825A (en) * | 2020-03-17 | 2020-07-24 | 福建华佳彩有限公司 | Method and device for improving high and low gray scales |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106098014A (en) * | 2016-08-23 | 2016-11-09 | 武汉华星光电技术有限公司 | A kind of RGBW display floater and driving method thereof |
| CN107393453A (en) * | 2017-08-03 | 2017-11-24 | 深圳市华星光电半导体显示技术有限公司 | The method for obtaining liquid crystal panel charge rate |
| CN107659779A (en) * | 2017-10-12 | 2018-02-02 | 京东方科技集团股份有限公司 | Picture processing method and its device, display device |
| CN109377949A (en) * | 2018-10-22 | 2019-02-22 | 深圳市华星光电半导体显示技术有限公司 | TFT-LCD panel secondary overvoltage compensation method and device |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102087844A (en) * | 2011-02-24 | 2011-06-08 | 华映视讯（吴江）有限公司 | Compensation circuit of liquid crystal display panel |
| CN102568430A (en) * | 2012-03-06 | 2012-07-11 | 深圳市华星光电技术有限公司 | Driving method for liquid crystal panel, display driving circuit and liquid crystal display device |
| KR102036709B1 (en) * | 2013-09-12 | 2019-10-28 | 삼성디스플레이 주식회사 | Organic light emitting display device and method of driving the same |
| CN107240374A (en) * | 2017-07-21 | 2017-10-10 | 京东方科技集团股份有限公司 | A kind of source electrode drive circuit, display device and its driving method |
| CN108172183B (en) * | 2018-01-02 | 2020-06-02 | 京东方科技集团股份有限公司 | Pixel compensation method, pixel compensation device and display device |
| CN108806623B (en) * | 2018-04-25 | 2021-09-10 | 南京京东方显示技术有限公司 | Overvoltage compensation device and method and overvoltage compensation display device and method |
-
2019
- 2019-02-28 CN CN201910153584.9A patent/CN109658901B/en active Active
- 2019-03-19 WO PCT/CN2019/078604 patent/WO2020172922A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106098014A (en) * | 2016-08-23 | 2016-11-09 | 武汉华星光电技术有限公司 | A kind of RGBW display floater and driving method thereof |
| CN107393453A (en) * | 2017-08-03 | 2017-11-24 | 深圳市华星光电半导体显示技术有限公司 | The method for obtaining liquid crystal panel charge rate |
| CN107659779A (en) * | 2017-10-12 | 2018-02-02 | 京东方科技集团股份有限公司 | Picture processing method and its device, display device |
| CN109377949A (en) * | 2018-10-22 | 2019-02-22 | 深圳市华星光电半导体显示技术有限公司 | TFT-LCD panel secondary overvoltage compensation method and device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111445825A (en) * | 2020-03-17 | 2020-07-24 | 福建华佳彩有限公司 | Method and device for improving high and low gray scales |
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| WO2020172922A1 (en) | 2020-09-03 |
| CN109658901B (en) | 2021-07-06 |
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