CN105445966B - The display panel of low colour cast - Google Patents
The display panel of low colour cast Download PDFInfo
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- CN105445966B CN105445966B CN201410403437.XA CN201410403437A CN105445966B CN 105445966 B CN105445966 B CN 105445966B CN 201410403437 A CN201410403437 A CN 201410403437A CN 105445966 B CN105445966 B CN 105445966B
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Abstract
A kind of display panel of low colour cast a, comprising: pixel array, it includes one first sub-pixel and one second sub-pixels, wherein separately including: a data line；One grid line；One the first transistor is coupled between the data line and one first liquid crystal capacitance；One second transistor is coupled between the data line and one second liquid crystal capacitance；And one third transistor be coupled between a common voltage and the second transistor；Wherein, first ratio of first sub-pixel is the ratio of the channel breadth length ratio of the channel breadth length ratio and second transistor of the third transistor in first sub-pixel, second ratio of second sub-pixel is the ratio of the channel breadth length ratio of the channel breadth length ratio and second transistor of the third transistor in second sub-pixel, which is less than first ratio.
Description
Technical field
The present invention relates to a kind of display panel, a kind of especially display panel of low colour cast.
Background technique
When audience watches from side viewing general display panel, the image of broadcasting can all generate color difference and color offset phenomenon,
It is due to optics red, green, blue delay (RGB retardation) as a result, current sets in order to solve color difference and color offset phenomenon
In meter, each sub-pixel in pixel array includes green sub-pixels, blue subpixels and red sub-pixel on a display panel
Multiple transistors can be all set, and channel design value (the as channel breadth length ratio W/L of those transistors in different subpixel
Ratio it is all) that unanimously, this will affect colour cast performance of display panel, please refers to Fig. 1 (A) and 1 (B), there is green son to be general
The one first of the display panel of pixel, blue subpixels and red sub-pixel measures schematic diagram and one second measurement schematic diagram,
The channel design value (as channel breadth length ratio W/L ratio) of those transistors is all consistent in different subpixel, such as Fig. 1 (A)
64-128 grayscale-side view (side viewing) gal code figure dotted line frame 11 shown in, it can be seen that the green sub-pixels, the sub- picture of the blue
Element and the red sub-pixel are diverging (divergence) state, as shown in grayscale-chromatic diagram of Fig. 1 (B), white color
Coordinate (Wx, Wy) faces (normal view) compared with side view (side view), it can be seen that faces (front viewing) and side
Depending on the notable difference in (side viewing) coloration, and when gamma curve is watched in side, it is found that it is red to be greater than indigo plant greater than green, green,
And a Divergent Phenomenon is had in 64-128 grayscale when being converted into grayscale, and then grayscale is caused to generate partially yellow effect.
Therefore, a kind of display panel of low colour cast is several times ground so that color difference and the colour cast etc. that influence the quality of image is effectively reduced
It is of the invention to completing eventually to study carefully experiment.
Summary of the invention
The purpose of the present invention is to provide a kind of display panel of low colour cast, so as to when the display panel is watched in side,
There can be the effect that color difference and colour cast are similarly avoided with front viewing.
To achieve the above object, characteristic according to the present invention, display panel provided by the invention, comprising: a pixel array,
Wherein the pixel array includes at least one first sub-pixel and one second sub-pixel, wherein first sub-pixel and second son
Pixel separately includes: a data line；One grid line；One the first transistor, be coupled to the data line and one first liquid crystal capacitance it
Between, and there is a grid to be coupled to the grid line；One second transistor, be coupled to the data line and one second liquid crystal capacitance it
Between, and there is a grid to be coupled to the grid line；And a third transistor, it is coupled to a common voltage and second crystal
Between pipe, and there is a grid to be coupled to the grid line；Wherein, which has one first ratio, first ratio
Value be first sub-pixel in the third transistor channel breadth length ratio divided by the second transistor channel breadth length ratio value；Its
In, which has one second ratio, which is the channel width of the third transistor in second sub-pixel
The long value than the channel breadth length ratio divided by the second transistor；Wherein, which is less than first ratio.
The display panel of low colour cast of the present invention as a result, can by adjusting the breadth length ratio of transistor, come reach reduce colour cast and
Color difference so that when watching from side viewing the display panel with front watch the display panel when it is identical.
Detailed description of the invention
Fig. 1 (A) is one first measurement schematic diagram of known display panel.
Fig. 1 (B) is one second measurement schematic diagram of known display panel.
Fig. 2 is the schematic diagram the invention shows panel.
Fig. 3 is the schematic diagram of present invention pixel array.
Fig. 4 (A) is that the invention shows the one first of panel to measure schematic diagram.
Fig. 4 (B) is that the invention shows the one second of panel to measure schematic diagram.
Symbol description in attached drawing:
Pixel array 1, the first sub-pixel 2, the second sub-pixel 3, third sub-pixel 4, data line 5, the first liquid crystal capacitance 6,
Second liquid crystal capacitance 7, the first transistor 8, second transistor 9, third transistor 10, dotted line frame 11, dotted line frame 12, display panel
13, gate drivers 14, data driver 15.
Specific embodiment
It first referring to figure 2. and Fig. 3, is the schematic diagram the invention shows panel and pixel array.As shown, the display
Panel 13 a, comprising: pixel array 1；One gate drivers 14, those grid lines connected to connect the pixel array 1
G1-Gn；One data driver 15, to connect those data lines D of the pixel array 11-Dn, wherein the pixel array 1 include
One first sub-pixel 2, one second sub-pixel 3 and a third sub-pixel 4, wherein first sub-pixel 2, second sub-pixel 3,
The third sub-pixel 4 separately includes: a data line 5；One gate lines Gi；One the first transistor 8 is coupled to the data line 5 and one
Between one liquid crystal capacitance 6, and there is a grid to be coupled to the gate lines Gi；One second transistor 9 be coupled to the data line 5 with
Between one second liquid crystal capacitance 7, and there is a grid to be coupled to the gate lines Gi；And one third transistor 10 be coupled to one
Between common voltage Vcom and the second transistor 7, and there is a grid to be coupled to gate lines G i, i.e. first sub-pixel
2 connection data line Dj+1, second sub-pixel 3 connection data line Dj+2, the third sub-pixel 4 connection data line Dj.Preferably, in
In the present embodiment, which is green (G) sub-pixel, which is blue (B) sub-pixel, third
Pixel 4 is red (R) sub-pixel, also that is, first sub-pixel 2, the second sub-pixel 3 and third sub-pixel 4 form general liquid crystal
Complete pixel point of display.
Wherein, which has one first ratio, which is that the third is brilliant in first sub-pixel 2
The channel breadth length ratio of body pipe 10 is divided by the value of the channel breadth length ratio of the second transistor 9, i.e. third crystal in the first sub-pixel (G)
The wide ratio (W3/L3) for growing (W2/L2) divided by channel divided by channel long (W3/L3) and second transistor channel width of tube passage/
(W2/L2)；Second sub-pixel 3 has one second ratio, which is the third transistor 10 in second sub-pixel 3
Channel breadth length ratio divided by the second transistor 9 channel breadth length ratio value, i.e. third transistor channel in the second sub-pixel (B)
Width grows (W3/L3) and second transistor channel width divided by ratio (W3/L3)/(W2/L2) of channel long (W2/L2) divided by channel；
The third sub-pixel 4 has a third ratio, which is the channel width of the third transistor 10 in the third sub-pixel 4
The long value than the channel breadth length ratio divided by the second transistor 9, i.e., third transistor channel width is divided by logical in third sub-pixel (R)
Road length (W3/L3) and second transistor channel width grow ratio (W3/L3)/(W2/L2) of (W2/L2) divided by channel.Wherein, this
Two ratios are less than first ratio, which is greater than first ratio.By this first, second and third ratio setting,
The color difference of controllable side viewing display panel and the effect of colour cast.
In the present embodiment, first ratio is between 0.1 to 0.5, first ratio of second ratio greater than 0.8 times
Value, first ratio of the third ratio less than 1.2 times.
In another embodiment, first ratio is between 0.2 to 0.4.Preferably, first ratio is 0.3.
In another embodiment, which is greater than 0.9 times first ratio.Preferably, second ratio is 0.9
First ratio again.
In another embodiment, first ratio of the third ratio less than 1.1 times.Preferably, the third ratio is 1.1
First ratio again.
Referring to Fig. 4 (A) and 4 (B), for the invention shows the one first of panel to measure schematic diagram and one second measurement
Schematic diagram.Wherein, first ratio which is 0.9 times, first ratio which is 1.1 times, therefore
First ratio, second ratio and the third ratio are comparably 1:0.9:1.1.Such as 64-128 grayscale-side view of Fig. 4 (A)
Shown in the dotted line frame 12 of (side viewing) gal code figure, it can be seen that first (G) sub-pixel 2, second (B) sub-pixel 3 and this
Three (R) sub-pixels 4 are convergence (convergence) state.As shown in grayscale-chromatic diagram of Fig. 4 (B), white chromaticity coordinates
(Wx, Wy's) faces (normal view) compared with side view (side view), it can be seen that faces (front viewing) and side view (side
Face viewing) difference in coloration becomes smaller, it can so reduce the effect of colour cast and color difference.
By the display panel 13 of low colour cast of the invention, as having regulated and controled ratio possessed by each sub-pixel,
It can avoid color difference and colour cast when the display panel is watched in side, and can avoid influencing the quality of image, and then greatly improve
Show quality.
Above-described embodiment is illustrated only for facilitating explanation, and the interest field that the present invention is advocated certainly should be special to apply
Subject to described in sharp range, not just the above examples.
Claims (9)
1. a kind of display panel, comprising:
One pixel array, wherein the pixel array includes at least one first sub-pixel and one second sub-pixel, wherein first son
Pixel and second sub-pixel separately include:
One data line；
One grid line；
One the first transistor is coupled between the data line and one first liquid crystal capacitance, and there is a grid to be coupled to the grid
Polar curve；
One second transistor is coupled between the data line and one second liquid crystal capacitance, and there is a grid to be coupled to the grid
Polar curve；And
One third transistor is coupled between a common voltage and the second transistor, and there is a grid to be coupled to the grid
Polar curve；
Wherein, which has one first ratio, which is the third transistor in first sub-pixel
Channel breadth length ratio divided by the channel breadth length ratio of the second transistor value；
Wherein, which has one second ratio, which is the third transistor in second sub-pixel
Channel breadth length ratio divided by the channel breadth length ratio of the second transistor value；
Wherein, which is less than first ratio, wherein when first sub-pixel is green sub-pixels, second son
Pixel is blue subpixels, and when first sub-pixel is red sub-pixel, which is green sub-pixels or blue
Sub-pixel.
2. display panel as described in claim 1, wherein second ratio is greater than 0.8 times first ratio.
3. display panel as claimed in claim 2, wherein second ratio is greater than 0.9 times first ratio.
4. display panel as described in claim 1, wherein when first sub-pixel is green sub-pixels, the second sub- picture
Element is blue subpixels, which includes a third sub-pixel, which includes:
One data line；
One grid line；
One the first transistor is coupled between the data line and one first liquid crystal capacitance, and there is a grid to be coupled to the grid
Polar curve；
One second transistor is coupled between the data line and one second liquid crystal capacitance, and there is a grid to be coupled to the grid
Polar curve；And
One third transistor is coupled between a common voltage and the second transistor, and there is a grid to be coupled to the grid
Polar curve；
Wherein, which has a third ratio, which is the third transistor in the third sub-pixel
Channel breadth length ratio divided by the channel breadth length ratio of the second transistor value；
Wherein, which is greater than first ratio.
5. display panel as claimed in claim 4, wherein first ratio of the third ratio less than 1.2 times.
6. display panel as claimed in claim 4, wherein first ratio of the third ratio less than 1.1 times.
7. display panel as claimed in claim 4, wherein when first sub-pixel is green sub-pixels, the second sub- picture
Element is blue subpixels, which is red sub-pixel.
8. display panel as described in claim 1, wherein first ratio is between 0.1 to 0.5.
9. display panel as claimed in claim 8, wherein first ratio is between 0.2 to 0.4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410403437.XA CN105445966B (en) | 2014-08-18 | 2014-08-18 | The display panel of low colour cast |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410403437.XA CN105445966B (en) | 2014-08-18 | 2014-08-18 | The display panel of low colour cast |
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| Publication Number | Publication Date |
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| CN105445966A CN105445966A (en) | 2016-03-30 |
| CN105445966B true CN105445966B (en) | 2019-04-02 |
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| CN201410403437.XA Active CN105445966B (en) | 2014-08-18 | 2014-08-18 | The display panel of low colour cast |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106855668B (en) | 2016-12-30 | 2019-03-15 | 深圳市华星光电技术有限公司 | Dot structure, array substrate and display panel |
| TWI706396B (en) * | 2019-08-22 | 2020-10-01 | 友達光電股份有限公司 | Display panel and pixel unit thereof |
| CN112068376A (en) * | 2020-09-28 | 2020-12-11 | 成都中电熊猫显示科技有限公司 | Array substrate and display device |
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| CN1945414A (en) * | 2006-11-13 | 2007-04-11 | 友达光电股份有限公司 | Pixel structure |
| CN101025528A (en) * | 2006-02-17 | 2007-08-29 | 中华映管股份有限公司 | Pixel structure and liquid crystal display panel |
| CN101211078A (en) * | 2006-12-28 | 2008-07-02 | 中华映管股份有限公司 | Pixel structure and liquid crystal display panel |
| CN102162959A (en) * | 2010-02-23 | 2011-08-24 | 东莞万士达液晶显示器有限公司 | Liquid crystal display device and drive method thereof |
| CN103353697A (en) * | 2013-07-19 | 2013-10-16 | 深圳市华星光电技术有限公司 | Array substrate and liquid crystal display panel |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW594338B (en) * | 2003-02-14 | 2004-06-21 | Quanta Display Inc | A two TFT pixel structure liquid crystal display |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101025528A (en) * | 2006-02-17 | 2007-08-29 | 中华映管股份有限公司 | Pixel structure and liquid crystal display panel |
| CN1945414A (en) * | 2006-11-13 | 2007-04-11 | 友达光电股份有限公司 | Pixel structure |
| CN101211078A (en) * | 2006-12-28 | 2008-07-02 | 中华映管股份有限公司 | Pixel structure and liquid crystal display panel |
| CN102162959A (en) * | 2010-02-23 | 2011-08-24 | 东莞万士达液晶显示器有限公司 | Liquid crystal display device and drive method thereof |
| CN103353697A (en) * | 2013-07-19 | 2013-10-16 | 深圳市华星光电技术有限公司 | Array substrate and liquid crystal display panel |
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