CN102162950A - Pixel unit - Google Patents
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- CN102162950A CN102162950A CN 201110046987 CN201110046987A CN102162950A CN 102162950 A CN102162950 A CN 102162950A CN 201110046987 CN201110046987 CN 201110046987 CN 201110046987 A CN201110046987 A CN 201110046987A CN 102162950 A CN102162950 A CN 102162950A
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Abstract
本发明公开一种像素单元，其包括红色显示区、绿色显示区、一蓝色显示区以及黄色显示区，其中黄色显示区的面积小于红色显示区、绿色显示区或蓝色显示区的面积。前述的黄色显示区的面积例如为红色显示区的面积的90％以上。
The present invention discloses a pixel unit, which includes a red display area, a green display area, a blue display area and a yellow display area, wherein the area of the yellow display area is smaller than the area of the red display area, the green display area or the blue display area. The area of the yellow display area is, for example, more than 90% of the area of the red display area.
Description
Technical field
The present invention relates to a kind of pixel cell, and particularly relevant for a kind of pixel cell of display panels.
Background technology
In the development of display, along with the progress of photoelectric technology and semiconductor fabrication, have that high image quality, space utilization efficient are good, the LCD of low consumpting power, advantageous characteristic such as radiationless becomes the main flow in market gradually.Because liquid crystal is non-self luminous display medium, so display panels needs can reach the purpose of demonstration with the backlight collocation.In order to make each pixel cell in the LCD can demonstrate chromatic image, can dispose red filter layer, green filter layer and blue color filter layer in each pixel cell, in each pixel cell, to define red display district, green viewing area and blue viewing area respectively.
In recent years, because the user more and more payes attention to the display quality (such as resolution, gamut range, color range, brightness, contrast etc.) of LCD, therefore, existing fabricator is applied to the Yellow filter layer in the pixel cell, in the hope of promoting the display quality of LCD.
Figure 1A and Figure 1B are the synoptic diagram of known pixel unit.Please refer to Figure 1A and Figure 1B, known display panels comprises the pixel cell 100a (illustrating as Figure 1A) or the 100b (illustrating as Figure 1B) of a plurality of arrayed, and each pixel cell 100a comprises red display district R, green viewing area G, blue viewing area B and yellow viewing area Y respectively.By Figure 1A and Figure 1B as can be known, the area of red display district R, green viewing area G, blue viewing area B and yellow viewing area Y is identical.It should be noted that pixel cell 100a with yellow viewing area Y and pixel cell 100b when the display white picture, can occur the yellow partially phenomenon of picture usually, generally improve the colourity of the yellow partially practice of this picture for the adjustment backlight.In detail; if the Yellow filter layer is applied among pixel cell 100a and the pixel cell 100b; the fabricator can adopt the backlight of inclined to one side indigo plant to improve the yellow partially phenomenon of picture usually, but adopts blue partially backlight can cause the shown image brilliance of LCD significantly to be decayed.
Summary of the invention
The invention provides a kind of pixel cell, it is difficult for having the phenomenon of inclined to one side Huang to produce when the display white picture.
The invention provides a kind of pixel cell, it comprises red display district, green viewing area, blue viewing area and yellow viewing area, and wherein the area of yellow viewing area is less than the area of red display district, green viewing area or blue viewing area.In addition, the area in red display district equals the area of green viewing area in fact, and the area of yellow viewing area be the red display district area more than 90% for example, aforesaid red display district, green viewing area, blue viewing area and yellow viewing area are for penetrating the viewing area.
In one embodiment of this invention, the area of aforesaid blue viewing area is greater than the area in red display district.
In one embodiment of this invention, aforesaid blue viewing area is adjacent with yellow viewing area, and the area summation of blue viewing area and yellow viewing area is 2 times of area in red display district.
In one embodiment of this invention, aforesaid blue viewing area and yellow viewing area constitute a rectangular area.
In one embodiment of this invention, aforesaid blue viewing area is around yellow viewing area.
In one embodiment of this invention, the area of aforesaid blue viewing area equals the area in red display district in fact.
In one embodiment of this invention, aforesaid pixel cell can further comprise white viewing area, and this white viewing area is adjacent with yellow viewing area, and the area summation of white viewing area and yellow viewing area equals the area of blue viewing area in fact.
In one embodiment of this invention, aforesaid white viewing area is around yellow viewing area.For example, red display district, green viewing area, blue viewing area, white viewing area and yellow viewing area are for penetrating the viewing area.
In pixel cell of the present invention, because the area of yellow viewing area is less than the area of red display district, green viewing area or blue viewing area, therefore pixel cell of the present invention is not prone to the picture phenomenon of Huang partially when the display white picture.
For above-mentioned feature and advantage of the present invention can be become apparent, embodiment cited below particularly, and cooperate appended accompanying drawing to be described in detail below.
Description of drawings
Figure 1A and Figure 1B are the synoptic diagram of known pixel unit;
Fig. 2 A and Fig. 2 B are the synoptic diagram of the pixel cell of first embodiment of the invention;
Fig. 3 A and Fig. 3 B are the synoptic diagram of the pixel cell of second embodiment of the invention;
Fig. 4 and Fig. 5 are experimental data of the present invention.
Wherein, Reference numeral
100a, 100b, 200a, 200b, 300a, 300b: pixel cell R: red display district
G: green viewing area B: blue viewing area
Y: yellow viewing area W: white viewing area
Embodiment
[first embodiment]
Fig. 2 A and Fig. 2 B are the synoptic diagram of the pixel cell of first embodiment of the invention.Please refer to Fig. 2 A, the pixel cell 200a of present embodiment comprises red display district R, green viewing area G, blue viewing area B and yellow viewing area Y, and the area of wherein yellow viewing area Y is less than the area of red display district R, green viewing area G or blue viewing area B.For example, aforesaid red display district R, green viewing area G, blue viewing area B and yellow viewing area Y are all and penetrate the viewing area.Certainly, red display district R, green viewing area G, blue viewing area B and yellow viewing area Y can also be semi-penetration semi-reflective (transflective) viewing areas.
In the present embodiment, the area of the red display district R area with green viewing area G in fact is identical, and the area of blue viewing area B is greater than the area of red display district R, and the area of blue viewing area B is greater than the area of green viewing area G.In addition, red display district R and green viewing area G, the shape of blue viewing area B is all rectangle, the shape of yellow viewing area Y then is the less rectangle of area, in the present embodiment, the area that the area of yellow viewing area Y adds blue viewing area B equals the area of red display district R and the area of green viewing area G in fact, and yellow viewing area Y is replenished by blue viewing area B less than the part of the area of red display district R and green viewing area G.It should be noted that red display district R, green viewing area G are identical in fact with the width of yellow viewing area Y, but the length of red display district R and green viewing area G is greater than the length of yellow viewing area Y.
From Fig. 2 A as can be known, blue viewing area B is adjacent with yellow viewing area Y for the part of present embodiment, and is about 2 times of area of red display district R or green viewing area in the area summation of pixel cell 200a Smalt viewing area B and yellow viewing area Y.In addition, blue viewing area B in the present embodiment and yellow viewing area Y constitute a rectangular area.In the present embodiment, the area ratio of blue viewing area B and yellow viewing area Y and the visual product demand of distribution situation and do suitable adjustment.For example, the area of yellow viewing area Y is more than 90% of area of red display district R or green viewing area G.
Please refer to Fig. 2 B, pixel cell 200b and pixel cell 200a are similar, but the two main difference part is: pixel cell 200b further comprises white viewing area W, and this white viewing area W is adjacent with yellow viewing area Y, and the area summation of white viewing area W and yellow viewing area Y equals the area of red display district R, green viewing area G or blue viewing area B in fact in pixel cell 200b.
From Fig. 2 B as can be known, the shape of red display district R, green viewing area G and blue viewing area B is all rectangle, and the shape of white viewing area W and yellow viewing area Y then is the less rectangle of area.In the present embodiment, the visual product demand of area ratio of white viewing area W and yellow viewing area Y and do suitable adjustment.For example, the area of yellow viewing area Y is more than 90% of area of red display district R or green viewing area G, and the area of white viewing area W then is below 10% of area of red display district R or green viewing area G.It should be noted that, red display district R, green viewing area G, blue viewing area B, white viewing area W are identical in fact with the width of yellow viewing area Y, but the length of red display district R, green viewing area G and blue viewing area B is greater than the length of white viewing area W and yellow viewing area Y.
In one embodiment of this invention, aforesaid white viewing area is around yellow viewing area.For example, red display district R, green viewing area G, blue viewing area B, white viewing area W and yellow viewing area Y are all and penetrate the viewing area.Certainly, red display district R, green viewing area G, blue viewing area B, white viewing area W and yellow viewing area Y can also be semi-penetration semi-reflective (transflective) viewing areas.
[second embodiment]
Fig. 3 A and Fig. 3 B are the synoptic diagram of the pixel cell of second embodiment of the invention.Please refer to Fig. 3 A, the pixel cell 300a and the pixel cell 200a among first embodiment of present embodiment are similar, but the two main difference part is: the blue viewing area B among the pixel cell 300a is except adjacent with yellow viewing area Y, also further around yellow viewing area Y.In the present embodiment, the area summation of pixel cell 300a Smalt viewing area B and yellow viewing area Y is 2 times of area of red display district R or green viewing area.In addition, blue viewing area B in the present embodiment and yellow viewing area Y can constitute a rectangular area.
Please refer to Fig. 3 B, the pixel cell 300b and the pixel cell 200b among first embodiment of present embodiment are similar, but the two main difference part is: the white viewing area W among the pixel cell 300b is except adjacent with yellow viewing area Y, also further around yellow viewing area Y.In the present embodiment, the area summation of white viewing area W and yellow viewing area Y is the area of red display district R, green viewing area or blue viewing area B among the pixel cell 300b.In addition, white viewing area W in the present embodiment and yellow viewing area Y can constitute a rectangular area.
[experimental example]
Fig. 4 and Fig. 5 are experimental data of the present invention.As can be seen from Figure 4, when the area of the area of the area of yellow viewing area Y and the area of red display district R, green viewing area G and blue viewing area B was identical, the shown white color coordinate that goes out of display unit was (0.313,0.359); When the area of yellow viewing area Y be red display district R or green viewing area G area 80%, and the area of blue viewing area B is 120% o'clock of area of red display district R or green viewing area G, the shown white color coordinate that goes out of display unit is (0.297,0.325); When the area of yellow viewing area Y be red display district R or green viewing area G area 60%, and the area of blue viewing area B is 140% o'clock of area of red display district R or green viewing area G, the shown white color coordinate that goes out of display unit is (0.284,0.298); When the area of yellow viewing area Y be red display district R or green viewing area G area 40%, and the area of blue viewing area B is 160% o'clock of area of red display district R or green viewing area G, the shown white color coordinate that goes out of display unit is (0.274,0.275).When the area of yellow viewing area Y be red display district R or green viewing area G area 20%, and the area of blue viewing area B is 180% o'clock of area of red display district R or green viewing area G, the shown white color coordinate that goes out of display unit should be (0.240,0.219).
From as can be known above-mentioned, whenever the area of yellow viewing area Y reduces by 20%, and the area of blue viewing area B increases at 20% o'clock, and the shown x chromaticity coordinates that goes out of display unit on average can reduce by 0.011, and the y chromaticity coordinates can reduce by 0.024, and the direction of past blue light color coordinate moves thereupon.
Please refer to the right side of Fig. 4, no matter the area ratio of yellow viewing area Y and blue viewing area B why, the shown gold-tinted chromaticity coordinates that goes out of display unit does not all have the phenomenon of obvious skew.
As can be seen from Figure 5, when the area of the area of the area of white viewing area W and the area of red display district R, green viewing area G and blue viewing area B was identical, the shown white color coordinate that goes out of display unit was (0.224,0.185); When the area of white viewing area W be red display district R or green viewing area G area 80%, and the area of yellow viewing area Y is 20% o'clock of area of red display district R or green viewing area G, the shown white color coordinate that goes out of display unit is (0.241,0.219); When the area of white viewing area W be red display district R or green viewing area G area 60%, and the area of yellow viewing area Y is 40% o'clock of area of red display district R or green viewing area G, the shown white color coordinate that goes out of display unit is (0.259,0.253); When the area of white viewing area W be red display district R or green viewing area G area 40%, and the area of yellow viewing area Y is 60% o'clock of area of red display district R or green viewing area G, the shown white color coordinate that goes out of display unit is (0.277,0.288), and when the area of white viewing area W be red display district R or green viewing area G area 20%, and the area of yellow viewing area Y is 80% o'clock of area of red display district R or green viewing area G, the shown white color coordinate that goes out of display unit should be (0.295,0.324).
As can be seen from Figure 5, whenever the area of white viewing area W increases by 20%, and the area of yellow viewing area Y reduced by 20% o'clock, and the shown x chromaticity coordinates that goes out of display unit can reduce by 0.018, and the y chromaticity coordinates can reduce by 0.035, and the direction of past blue light color coordinate moves thereupon.
Please refer to the right side of Fig. 5, no matter the area ratio of white viewing area W and blue viewing area B why, the shown gold-tinted chromaticity coordinates that goes out of display unit does not all have the phenomenon of obvious skew.
Except considering whether the gold-tinted chromaticity coordinates has the phenomenon of obvious skew, the present invention can further consider the whether distortion of yellow picture, and generally speaking, the yellow picture parameter whether distortion is judged is Delta E, and DeltaE is defined as sqrt[(L
1-L
2)
2+ (a
1-a
2)
2+ (b
1-b
2)
2], (L wherein
1, a
1, b
1) be the lightness (L that the area of yellow viewing area Y equals 100% o'clock shown yellow that goes out
1) and chromaticity coordinates (a
1, b
1), and (L
2, a
2, b
2) be that the area of yellow viewing area Y is the lightness (L of 20%, 40%, 60%, 80%, 90% o'clock shown yellow that goes out
2) and chromaticity coordinates (a
2, b
2).Usually Delta E is less than 6, and the user is not easy to observe out yellow picture distortion.The present invention selects Delta E to be about 4.5 pairing area ratios (being the area of the area of yellow viewing area Y more than or equal to 90% red display district R), this measure not only can allow whole efficiency promote, and can allow the user be not easy to observe out yellow picture distortion.
Following table presents the relation between the area, light-emitting diode luminance, colored filter film penetrance, whole efficiency of yellow viewing area Y.
Following table presents the relation of area and the Delta E of yellow viewing area Y.
In pixel cell of the present invention, because the area of yellow viewing area is less than the area of red display district, green viewing area or blue viewing area, therefore pixel cell of the present invention is not prone to the picture phenomenon of Huang partially when the display white picture.
Certainly; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the present invention.
Claims (10)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW99137004A TWI437336B (en) | 2010-10-28 | 2010-10-28 | Pixel unit |
| TW099137004 | 2010-10-28 |
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| Publication Number | Publication Date |
|---|---|
| CN102162950A true CN102162950A (en) | 2011-08-24 |
| CN102162950B CN102162950B (en) | 2013-05-15 |
Family
ID=44464263
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110046987 Active CN102162950B (en) | 2010-10-28 | 2011-02-24 | pixel unit |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102162950B (en) |
| TW (1) | TWI437336B (en) |
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| WO2013010457A1 (en) * | 2011-07-15 | 2013-01-24 | 京东方科技集团股份有限公司 | Colour filter substrate, liquid crystal panel and liquid crystal display |
| CN103926730A (en) * | 2013-01-11 | 2014-07-16 | 三星显示有限公司 | Display device |
| CN104965339A (en) * | 2015-07-24 | 2015-10-07 | 武汉华星光电技术有限公司 | Colorful filter plate and liquid crystal display panel |
| US9276045B2 (en) | 2013-11-01 | 2016-03-01 | Au Optronics Corporation | Display panel |
| CN105929589A (en) * | 2016-07-08 | 2016-09-07 | 武汉华星光电技术有限公司 | Color optical filter, liquid crystal display panel and colourity matching regulating and control method thereof |
| CN105938269A (en) * | 2015-03-04 | 2016-09-14 | 株式会社日本显示器 | Display device |
| CN108732812A (en) * | 2018-05-28 | 2018-11-02 | 厦门天马微电子有限公司 | Display panel and display device |
| CN110007506A (en) * | 2019-03-29 | 2019-07-12 | 上海天马微电子有限公司 | Reflective display panel and reflective display device |
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Also Published As
| Publication number | Publication date |
|---|---|
| TWI437336B (en) | 2014-05-11 |
| CN102162950B (en) | 2013-05-15 |
| TW201217875A (en) | 2012-05-01 |
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