CN103824548A - Display panel driving method and display panel - Google Patents

Display panel driving method and display panel Download PDF

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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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pixels
gamma curve
data lines
pixel
display panel
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CN103824548B (en
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范大伟
丁友信
陈振铭
陈宜芳
柳福源
曾汉彰
洪义轩
简灵樱
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AUO Corp
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Abstract

本发明提供一种显示面板的驱动方法及显示面板，该显示面板包含多个像素、多条扫描线以及多条数据线，每一数据线耦接至其第一侧的像素及其第二侧的像素，该些数据线第一侧的像素耦接于相对应的奇数扫描线，该些数据线第二侧的像素耦接于相对应的偶数扫描线，该驱动方法包含根据第一灰阶值及第一伽马曲线驱动该些数据线第一侧的像素；以及根据该第一灰阶值及第二伽马曲线驱动该些数据线第二侧的像素；其中该第二伽马曲线相异于该第一伽马曲线。

The present invention provides a driving method and a display panel for a display panel. The display panel includes a plurality of pixels, a plurality of scan lines and a plurality of data lines. Each data line is coupled to a pixel on its first side and a second side thereof. pixels, the pixels on the first side of the data lines are coupled to the corresponding odd-numbered scan lines, and the pixels on the second side of the data lines are coupled to the corresponding even-numbered scan lines. The driving method includes: according to the first gray scale drive the pixels on the first side of the data lines according to the first grayscale value and the first gamma curve; and drive the pixels on the second side of the data lines according to the first grayscale value and the second gamma curve; wherein the second gamma curve Different from the first gamma curve.

Description

The driving method of display panel and display panel
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
Figure BDA0000444161530000021
Figure BDA0000444161530000031
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)

1.一种显示面板的驱动方法，其特征在于，该显示面板包含多个像素、多条扫描线以及多条数据线，每一数据线耦接至其第一侧的像素及其第二侧的像素，该些数据线第一侧的像素耦接于相对应的奇数扫描线，该些数据线第二侧的像素耦接于相对应的偶数扫描线，该驱动方法包含：1. A method for driving a display panel, characterized in that the display panel comprises a plurality of pixels, a plurality of scanning lines and a plurality of data lines, and each data line is coupled to a pixel on its first side and its second side The pixels on the first side of the data lines are coupled to the corresponding odd scan lines, and the pixels on the second side of the data lines are coupled to the corresponding even scan lines. The driving method includes: 根据一第一灰阶值及一第一伽马曲线驱动该些数据线第一侧的像素；以及driving the pixels on the first side of the data lines according to a first gray scale value and a first gamma curve; and 根据该第一灰阶值及一第二伽马曲线驱动该些数据线第二侧的像素；driving the pixels on the second side of the data lines according to the first grayscale value and a second gamma curve; 其中该第二伽马曲线相异于该第一伽马曲线。Wherein the second gamma curve is different from the first gamma curve. 2.根据权利要求1所述的驱动方法，其特征在于，该第一伽马曲线及该第二伽马曲线的伽马值相异。2. The driving method according to claim 1, wherein the gamma values of the first gamma curve and the second gamma curve are different. 3.根据权利要求1所述的驱动方法，其特征在于，该第二伽马曲线为该第一伽马曲线的平移曲线。3. The driving method according to claim 1, wherein the second gamma curve is a translation curve of the first gamma curve. 4.根据权利要求1所述的驱动方法，其特征在于，当根据该第一灰阶值及该第一伽马曲线驱动该些数据线第一侧的像素，且根据该第一灰阶值及该第二伽马曲线驱动该些数据线第二侧的像素时，该些数据线第一侧的像素及该些数据线第二侧的像素的亮度相同。4. The driving method according to claim 1, wherein when the pixels on the first side of the data lines are driven according to the first grayscale value and the first gamma curve, and according to the first grayscale value And when the second gamma curve drives the pixels on the second side of the data lines, the pixels on the first side of the data lines and the pixels on the second side of the data lines have the same brightness. 5.根据权利要求1所述的驱动方法，其特征在于，另包含：5. The driving method according to claim 1, further comprising: 根据该第一灰阶值及该第一伽马曲线驱动该些数据线第一侧的像素；driving the pixels on the first side of the data lines according to the first grayscale value and the first gamma curve; 量测该些数据线第一侧的像素的一第一亮度值；measuring a first brightness value of pixels on the first side of the data lines; 根据该第一灰阶值及该第一伽马曲线驱动该些数据线第二侧的像素；driving pixels on the second side of the data lines according to the first grayscale value and the first gamma curve; 量测该些数据线第二侧的像素的一第二亮度值；以及measuring a second brightness value of pixels on the second side of the data lines; and 根据该第一伽马曲线、该第一亮度值及该第二亮度值得到该第二伽马曲线。The second gamma curve is obtained according to the first gamma curve, the first brightness value and the second brightness value. 6.一种显示面板，其特征在于，包含：6. A display panel, characterized in that it comprises: 多个像素；multiple pixels; 多条数据线，每一数据线耦接至其第一侧的像素及其第二侧的像素；a plurality of data lines, each data line is coupled to the pixels on its first side and the pixels on its second side; 多条扫描线，用以提供扫描信号至该些像素，该些扫描线的奇数扫描线耦接于该些数据线第一侧的像素，该些扫描线的偶数扫描线耦接于该些数据线第二侧的像素；以及a plurality of scan lines for providing scan signals to the pixels, the odd scan lines of the scan lines are coupled to the pixels on the first side of the data lines, and the even scan lines of the scan lines are coupled to the data lines the pixels on the second side of the line; and 一源极驱动电路，耦接至该些数据线，用以经由该些数据线分别驱动该些数据线第一侧的像素及该些数据线第二侧的像素，该源极驱动电路根据一第一灰阶值及一第一伽马曲线驱动该些数据线第一侧的像素，且根据该第一灰阶值及一第二伽马曲线驱动该些数据线第二侧的像素；A source driving circuit, coupled to the data lines, for respectively driving the pixels on the first side of the data lines and the pixels on the second side of the data lines through the data lines, the source driving circuit according to a The first grayscale value and a first gamma curve drive the pixels on the first side of the data lines, and drive the pixels on the second side of the data lines according to the first grayscale value and a second gamma curve; 其中该第二伽马曲线相异于该第一伽马曲线。Wherein the second gamma curve is different from the first gamma curve. 7.根据权利要求6所述的显示面板，其特征在于，该第一伽马曲线及该第二伽马曲线的伽马值相异。7. The display panel according to claim 6, wherein the gamma values of the first gamma curve and the second gamma curve are different. 8.根据权利要求6所述的显示面板，其特征在于，该第二伽马曲线为该第一伽马曲线的平移曲线。8. The display panel according to claim 6, wherein the second gamma curve is a translation curve of the first gamma curve. 9.根据权利要求6所述的显示面板，其特征在于，当该源极驱动电路根据该第一灰阶值及该第一伽马曲线驱动该些数据线第一侧的像素，且根据该第一灰阶值及该第二伽马曲线驱动该些数据线第二侧的像素时，该些数据线第一侧的像素及该些数据线第二侧的像素的亮度相同。9. The display panel according to claim 6, wherein when the source driving circuit drives the pixels on the first side of the data lines according to the first grayscale value and the first gamma curve, and according to the When the pixels on the second side of the data lines are driven by the first grayscale value and the second gamma curve, the brightness of the pixels on the first side of the data lines and the pixels on the second side of the data lines are the same. 10.根据权利要求6所述的显示面板，其特征在于，另包含一查找表，用以储存该第一伽马曲线及该第二伽马曲线，其中该源极驱动电路根据该查找表经由该些数据线分别驱动该些数据线第一侧的像素及该些数据线第二侧的像素。10. The display panel according to claim 6, further comprising a look-up table for storing the first gamma curve and the second gamma curve, wherein the source driver circuit passes through The data lines respectively drive the pixels on the first side of the data lines and the pixels on the second side of the data lines.
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