CN103824548A - Display panel driving method and display panel - Google Patents
Display panel driving method and display panel Download PDFInfo
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- CN103824548A CN103824548A CN201310716426.2A CN201310716426A CN103824548A CN 103824548 A CN103824548 A CN 103824548A CN 201310716426 A CN201310716426 A CN 201310716426A CN 103824548 A CN103824548 A CN 103824548A
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Abstract
The invention provides a driving method of a display panel and the display panel, the display panel comprises a plurality of pixels, a plurality of scanning lines and a plurality of data lines, each data line is coupled to the pixel at the first side and the pixel at the second side, the pixel at the first side of the data lines is coupled to the corresponding odd scanning line, the pixel at the second side of the data lines is coupled to the corresponding even scanning line, the driving method comprises the steps of driving the pixels at the first side of the data lines according to a first gray scale value and a first gamma curve; and driving the pixels on the second side of the data lines according to the first gray-scale value and a second gamma curve; wherein the second gamma curve is different from the first gamma curve.
Description
Technical field
The present invention relates to a kind of driving method of display panel, especially relate to a kind of driving method of the display panel that improves image quality.
Background technology
Generally speaking, display panels includes multiple pixels, many data lines, multi-strip scanning line, gate driver circuit and source electrode drive circuit.Gate driver circuit is used for providing signal to pixel via sweep trace, to control the open and close of pixel.Source electrode drive circuit is used for via data line data writing signal in the pixel being unlocked.In the display panels of half source drive (half source driving, HSD) framework, each data line is used for transmission of data signals in the pixel of its left and right sides, to drive pixel display frame.But the pixel of each data line left and right sides easily, because manufacturing process or other factors cause the pixel characteristic of the data line left and right sides variant, therefore makes the brightness under same GTG value of data line left pixel and data line right pixel different.Above-mentioned luminance difference can cause on the picture of display panels linear striped (line mura), and then has a strong impact on the image quality of display panels.For instance, during when the close leftmost pixel of data line or near right pixels, can cause the coupling capacitance of data line the right and left pixel unequal, and then cause limit, data line left and right two pixel intensity differences, that is produce linear fringe effects; Or in the time of the density unevenness of unit, the sensitization interval of panel (photo spacer), can cause orientation ability difference between pixel, and then cause between pixel brightness not identical, that is produce linear fringe effects; Or in the time of the dislocation of the open region of data line the right and left pixel, can cause the aperture opening ratio difference of the pixel on limit, data line left and right, and then cause data line the right and left pixel intensity not identical, that is produce linear fringe effects.The display panels of existing semi-source pole driving architecture also cannot address the above problem effectively.
Summary of the invention
The object of the present invention is to provide a kind of driving method of the display panel that improves image quality, to solve the problem of prior art.
The invention provides a kind of driving method of display panel, this display panel comprises multiple pixels, multi-strip scanning line and many data lines, each data line is coupled to the pixel of its first side and the pixel of the second side thereof, the pixel of those data line the first sides is coupled to corresponding odd-numbered scan lines, the pixel of those data line the second sides is coupled to corresponding even-line interlace line, and this driving method comprises the pixel that drives those data line the first sides according to the first GTG value and the first gamma curve; And drive the pixel of those data line the second sides according to this first GTG value and the second gamma curve; Wherein this second gamma curve is different from this first gamma curve.
The present invention separately provides a kind of display panel, comprises multiple pixels, many data lines, multi-strip scanning line, and source electrode drive circuit.Each data line is coupled to the pixel of its first side and the pixel of the second side thereof.Those sweep traces are in order to provide sweep signal to those pixels, and the odd-numbered scan lines of those sweep traces is coupled to the pixel of those data line the first sides, and the even-line interlace line of those sweep traces is coupled to the pixel of those data line the second sides.This source electrode drive circuit is coupled to those data lines, in order to drive respectively the pixel of those data line the first sides and the pixel of those data lines the second side via those data lines, this source electrode drive circuit drives the pixel of those data line the first sides according to the first GTG value and one first gamma curve, and drives the pixel of those data line the second sides according to this first GTG value and the second gamma curve.Wherein this second gamma curve is different from this first gamma curve.
Compared to prior art, at half source drive (half source driving, HSD) in the display panel of framework, the driving method of display panel of the present invention can provide the pixel of two different gamma curves with the difference driving data lines left and right sides under same GTG value, to avoid linear fringe phenomena, and then the image quality of improvement display panel.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of display panel of the present invention;
Fig. 2 is that displaying panel driving method of the present invention is according to the schematic diagram of the pixel of the first GTG value and first gamma curve driving data lines the first side;
Fig. 3 is that displaying panel driving method of the present invention is according to the schematic diagram of the pixel of the first GTG value and first gamma curve driving data lines the second side;
Fig. 4 is the schematic diagram that displaying panel driving method of the present invention is adjusted the first embodiment of gamma curve;
Fig. 5 is the schematic diagram that displaying panel driving method of the present invention is adjusted the second embodiment of gamma curve;
Fig. 6 is the process flow diagram of the driving method of display panel of the present invention.
Reference numeral
Embodiment
Please refer to Fig. 1, the schematic diagram that Fig. 1 is display panel of the present invention.As shown in Figure 1, display panel 100 of the present invention includes multiple pixel PL, PR, many data line D1～Dn, multi-strip scanning line G1～Gn, gate driver circuit 110 and source electrode drive circuit 120.Each data line D1～Dn is coupled to the pixel PL of its first side (for example left side) and the pixel PR of the second side (for example right side) thereof.In multi-strip scanning line G1～Gn, odd-numbered scan lines is coupled to the pixel PL of data line D1～Dn the first side, and even-line interlace line is coupled to the pixel PR of data line D1～Dn the second side.Gate driver circuit 110 in order to provide via sweep trace G1～Gn sweep signal to corresponding pixel PL, PR with on-pixel.Source electrode drive circuit 120 is coupled to data line D1～Dn, in order to provide data-signal via data line D1～Dn, with the pixel PL of difference driving data lines D1～Dn the first side and the pixel PR of data line D1～Dn the second side.
Referring to Fig. 2 and Fig. 3, and in the lump with reference to Fig. 1.Fig. 2 is that displaying panel driving method of the present invention is according to the schematic diagram of the pixel of the first GTG value and first gamma curve driving data lines the first side.Fig. 3 is that displaying panel driving method of the present invention is according to the schematic diagram of the pixel of the first GTG value and first gamma curve driving data lines the second side.As shown in the figure, when according to the pixel PL of the first GTG value and first gamma curve driving data lines D1～Dn the first side, (the pixel PL of data line D1～Dn the first side is unlocked, and the pixel PR of data line D1～Dn the second side is closed), the first brightness value B1 of the pixel PL that displaying panel driving method of the present invention can metric data line D1～Dn the first side.And when according to the pixel PR of the first GTG value and first gamma curve driving data lines D1～Dn the second side, (the pixel PL of data line D1～Dn the first side is closed, and the pixel PR of data line D1～Dn the second side is unlocked), the second brightness value B2 of the pixel PR that displaying panel driving method of the present invention can metric data line D1～Dn the second side.When the first brightness value B1 and the second brightness value B2 are when variant, for avoiding linear striped (line mura) phenomenon, displaying panel driving method of the present invention can obtain the second gamma curve according to the first gamma curve, the first brightness value B1 and the second brightness value B2, and further according to the pixel PR of the first GTG value and second gamma curve driving data lines D1～Dn the second side, so that data line D1～Dn left pixel PL and data line D1～Dn right pixel PR have same brightness under same GTG value.
For instance, please refer to Fig. 4, and in the lump with reference to Fig. 2 and Fig. 3.Fig. 4 is the schematic diagram that displaying panel driving method of the present invention is adjusted the first embodiment of gamma curve.As shown in Figure 4, suppose that the first GTG value is 186, and the first gamma curve C1 is gamma 2.2 curves, when respectively according to the pixel PL of the first GTG value and first gamma curve driving data lines D1～Dn the first side and the second side, when PR, the first brightness value B1 is compared with the second high 17 nits of brightness value B2 (nits), in order to make the brightness of the pixel PL of data line D1～Dn the first side and the pixel PR of data line D1～Dn the second side identical, displaying panel driving method of the present invention can change according to luminance difference the gamma value of gamma curve, to obtain the second gamma curve C2, for example gamma 2.0 curves, and the brightness of the second gamma curve C2 under the first GTG value compared with high 17 nits of the brightness of the first gamma curve.So, displaying panel driving method of the present invention can be according to the pixel PR of the first GTG value and second gamma curve driving data lines D1～Dn the second side, so that the brightness of the pixel PR of the pixel PL of data line D1～Dn the first side and data line D1～Dn the second side is identical.
Relatively, displaying panel driving method of the present invention also can change the gamma curve of the pixel PL of data line D1～Dn the first side, to reduce the brightness of pixel PL of data line D1～Dn the first side, and then make the brightness of the pixel PL of data line D1～Dn the first side and the pixel PR of data line D1～Dn the second side identical.
On the other hand, except changing the gamma value of gamma curve, displaying panel driving method of the present invention also can be by the first gamma curve translation to obtain the second gamma curve.For instance, as shown in Figure 5, when the first brightness value B1 is during compared with high 17 nit of the second brightness value B2, in order to make the brightness of the pixel PL of data line D1～Dn the first side and the pixel PR of data line D1～Dn the second side identical, displaying panel driving method of the present invention can be according to luminance difference to left the first gamma curve C1, to obtain the second gamma curve C2, and the brightness of the second gamma curve C2 under the first GTG value compared with high 17 nits of the brightness of the first gamma curve.So, displaying panel driving method of the present invention can be according to the pixel PR of the first GTG value and second gamma curve driving data lines D1～Dn the second side, so that the brightness of the pixel PR of the pixel PL of data line D1～Dn the first side and data line D1～Dn the second side is identical.
Relatively, the also gamma curve of the pixel PL of translation data line D1～Dn the first side to the right of displaying panel driving method of the present invention, to reduce the brightness of pixel PL of data line D1～Dn the first side, and then make the brightness of the pixel PL of data line D1～Dn the first side and the pixel PR of data line D1～Dn the second side identical.
In addition, display panel of the present invention can separately comprise a look-up table 130, in order to store corresponding the first gamma curve of the first GTG value and the second gamma curve, and stores corresponding other group gamma curve of other GTG value.So source electrode drive circuit 110 can be according to look-up table 130 via the pixel PL of data line D1～Dn difference driving data lines D1～Dn the first side and the pixel PR of data line D1～Dn the second side, to avoid linear fringe phenomena.
Please refer to Fig. 6, the process flow diagram 600 of the driving method that Fig. 6 is display panel of the present invention.The flow process of the driving method of display panel of the present invention is as the following step:
Step 610: provide a display panel to comprise multiple pixels, multi-strip scanning line and many data lines, each data line is coupled to the pixel of its first side and the pixel of the second side thereof, the pixel of those data line the first sides is coupled to corresponding odd-numbered scan lines, and the pixel of those data line the second sides is coupled to corresponding even-line interlace line;
Step 620: the pixel that drives those data line the first sides according to the first GTG value and the first gamma curve; And
Step 630: the pixel that drives those data line the second sides according to this first GTG value and one second gamma curve.
Compared to prior art, at half source drive (half source driving, HSD) in the display panel of framework, the driving method of display panel of the present invention can provide the pixel of two different gamma curves with the difference driving data lines left and right sides under same GTG value, to avoid linear fringe phenomena, and then the image quality of improvement display panel.
Claims (10)
1. the driving method of a display panel, it is characterized in that, this display panel comprises multiple pixels, multi-strip scanning line and many data lines, each data line is coupled to the pixel of its first side and the pixel of the second side thereof, the pixel of those data line the first sides is coupled to corresponding odd-numbered scan lines, the pixel of those data line the second sides is coupled to corresponding even-line interlace line, and this driving method comprises:
Drive the pixel of those data line the first sides according to one first GTG value and one first gamma curve; And
Drive the pixel of those data line the second sides according to this first GTG value and one second gamma curve;
Wherein this second gamma curve is different from this first gamma curve.
2. driving method according to claim 1, is characterized in that, the gamma value of this first gamma curve and this second gamma curve is different.
3. driving method according to claim 1, is characterized in that, this second gamma curve is the translation curve of this first gamma curve.
4. driving method according to claim 1, it is characterized in that, when drive the pixel of those data line the first sides according to this first GTG value and this first gamma curve, and while driving the pixel of those data line the second sides according to this first GTG value and this second gamma curve, the brightness of the pixel of the pixel of those data line the first sides and those data lines the second side is identical.
5. driving method according to claim 1, is characterized in that, separately comprises:
Drive the pixel of those data line the first sides according to this first GTG value and this first gamma curve;
Measure one first brightness value of the pixel of those data line the first sides;
Drive the pixel of those data line the second sides according to this first GTG value and this first gamma curve;
Measure one second brightness value of the pixel of those data line the second sides; And
Obtain this second gamma curve according to this first gamma curve, this first brightness value and this second brightness value.
6. a display panel, is characterized in that, comprises:
Multiple pixels;
Many data lines, each data line is coupled to the pixel of its first side and the pixel of the second side thereof;
Multi-strip scanning line, in order to provide sweep signal to those pixels, the odd-numbered scan lines of those sweep traces is coupled to the pixel of those data line the first sides, and the even-line interlace line of those sweep traces is coupled to the pixel of those data line the second sides; And
One source pole driving circuit, be coupled to those data lines, in order to drive respectively the pixel of those data line the first sides and the pixel of those data lines the second side via those data lines, this source electrode drive circuit drives the pixel of those data line the first sides according to one first GTG value and one first gamma curve, and drives the pixel of those data line the second sides according to this first GTG value and one second gamma curve;
Wherein this second gamma curve is different from this first gamma curve.
7. display panel according to claim 6, is characterized in that, the gamma value of this first gamma curve and this second gamma curve is different.
8. display panel according to claim 6, is characterized in that, this second gamma curve is the translation curve of this first gamma curve.
9. display panel according to claim 6, it is characterized in that, when this source electrode drive circuit drives the pixel of those data line the first sides according to this first GTG value and this first gamma curve, and while driving the pixel of those data line the second sides according to this first GTG value and this second gamma curve, the brightness of the pixel of the pixel of those data line the first sides and those data lines the second side is identical.
10. display panel according to claim 6, it is characterized in that, separately comprise a look-up table, in order to store this first gamma curve and this second gamma curve, wherein this source electrode drive circuit drives respectively the pixel of those data line the first sides and the pixel of those data lines the second side according to this look-up table via those data lines.
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| Application Number | Priority Date | Filing Date | Title |
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| TW102141150 | 2013-11-12 | ||
| TW102141150A TWI497470B (en) | 2013-11-12 | 2013-11-12 | Display panel driving method and display panel |
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| CN103824548A true CN103824548A (en) | 2014-05-28 |
| CN103824548B CN103824548B (en) | 2016-03-16 |
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| CN104376827A (en) * | 2014-11-26 | 2015-02-25 | 京东方科技集团股份有限公司 | Method and device for correcting liquid crystal display device |
| CN106940503A (en) * | 2016-01-05 | 2017-07-11 | 群创光电股份有限公司 | Display device |
| CN108257544A (en) * | 2018-02-13 | 2018-07-06 | 厦门天马微电子有限公司 | Special-shaped display panel and its driving method, special-shaped display device |
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| TWI560486B (en) * | 2016-01-05 | 2016-12-01 | Innolux Corp | Display panel |
| TWI682375B (en) * | 2018-10-08 | 2020-01-11 | 元太科技工業股份有限公司 | Pixel array |
| TWI709129B (en) * | 2019-12-18 | 2020-11-01 | 敦泰電子股份有限公司 | Extended gamma device of display panel and display device having the same |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN103824548B (en) | 2016-03-16 |
| TW201519197A (en) | 2015-05-16 |
| TWI497470B (en) | 2015-08-21 |
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