CN202995198U - Pixel electrode structure, array substrate and display device - Google Patents
Pixel electrode structure, array substrate and display device Download PDFInfo
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- CN202995198U CN202995198U CN 201220611097 CN201220611097U CN202995198U CN 202995198 U CN202995198 U CN 202995198U CN 201220611097 CN201220611097 CN 201220611097 CN 201220611097 U CN201220611097 U CN 201220611097U CN 202995198 U CN202995198 U CN 202995198U
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Abstract
The utility model relates to a pixel electrode structure, an array substrate provided with the pixel electrode structure and a display device provided with the pixel electrode structure and belongs to the technical field of display. The pixel electrode structure aims at eliminating a color casting phenomenon which usually occurs in display technology under an ADS drive module. A ratio of electrode size and electrode spacing in a blue sub-pixel electrode unit is arranged to be larger than that of a red sub-pixel electrode unit and a green sub-pixel electrode unit so that a gap of a pixel electrode of a blue pixel is designed to be different from that of a red pixel and a green pixel, namely, the blue pixel is designed to have high transmittance so that the red pixel is prevented from being large in transmittance. The relatively yellow color casting phenomenon occurring in a transmission zone caused by increase of aeolotropism due to a refractive index in semi-tone is avoided so that a half transparent and half transformed type liquid crystal display (LCD) with good image quality can be manufactured.
Description
Technical field
The utility model relates to the display technique field, is specifically related to a kind of pixel electrode structure, array base palte and display device.
Background technology
At present, Thin Film Transistor-LCD (Thin Film Transistor Liquid Crystal Display is called for short TFT-LCD) is to show the main display device of using in product.Because the products such as notebook computer, display, TV mostly are main display device in indoor use, therefore most of TFT-LCD product that adopts through mode.A senior super dimension switch technology (ADvanced Super Dimension Switch, ADS) has high resolving power, high permeability, low-power consumption, wide visual angle, high aperture, low aberration, without advantages such as water of compaction ripples (push Mura).Be widely used in various demonstration products, its core technology is: the electric field that the electric field that produces by gap electrode edge in same plane and gap electrode layer and plate electrode interlayer produce forms multi-dimensional electric field, make in liquid crystal cell between gap electrode, directly over electrode, all aligned liquid-crystal molecules can both produce rotation, thereby improved the liquid crystal work efficiency and increased light transmission efficiency.At present along with some shows product not only need to be in indoor use, also need to be in outdoor application.In order to satisfy the application demand of its indoor/outdoor, usually use the Transflective display screen technology.The Transflective display screen technology refers to the part of pixel regional as reflector space, and remaining zone is as seeing through the zone, its will from external light source and in the backlight that is built in display device carry out irradiation and show image, thereby all can use in indoor/outdoor.
This semi-transflective reflective display screen technology, as shown in Figure 1, when liquid crystal molecule tilts gradually, when the gray tone of the medium tone on photochromic white color tuning the right from the left side changes, suppose that on the left side shows that white color timing liquid crystal reflectivity (Refractive Index) is 1, when the middle GTG that reaches the right is gray tone, reflectivity will increase to 1+ α (α be change along with tilting gradually of liquid crystal molecule on the occasion of), therefore the anisotropy of liquid-crystal refractive-index will become greatly, thereby seeing through relatively of long wavelength's red light increases.And as shown in Figure 2, wherein shown the right transmitance feature of RGB (Red-Green-Blue, RGB) three form and aspect, namely the transmissivity of redgreenblue and optical performance concerns schematic diagram.Wherein, optical performance is one of main coefficient that affects the LCD display effect, optical performance be according to liquid crystal cells phase delay to determine its display effect, it is expressed as d * △ n, wherein d is unit gap (gap), and △ n is the average birefringence rate variance of liquid crystal in the unit gap.As mentioned above, in initial white light color range zone, what human eye was seen is white light, and in the middle of being transferred to gradually during the GTG tone, if the transmitance of red light increases, the color of the LCD that human eye is seen will not be white, and can slightly skew occur to yellow, and this phenomenon just is referred to as partially yellow (Yellowish) phenomenon.And the one of the main reasons that this color offset phenomenon causes the display image quality to reduce just.
At common TN(Twisted Nematic, twisted-nematic) in the type liquid crystal display, general by adjusting aperture opening ratio if there is such colour cast problem, can avoid the generation of this phenomenon.Yet the ADS technology just is widely used as wide visual angle technology at present, in the research process of eliminating above-mentioned color offset phenomenon, how to provide a kind of technology that directly effectively, does not cause process costs to increase just day by day to be paid attention to by the developer.
The utility model content
The technical matters that (one) will solve
The technical problems to be solved in the utility model is the color offset phenomenon that often occurs in the display technique of how eliminating under the ADS drive pattern.
(2) technical scheme
For addressing the above problem, the utility model provides a kind of pixel electrode structure, described pixel electrode structure comprises N pixel electrode unit, described N pixel electrode unit is one of them color in corresponding color film N look pattern respectively, the different coloured light of corresponding demonstration, in described N pixel electrode unit between separately electrode width and electrode crack width sum different, N 〉=2 wherein.
Wherein, in described N pixel electrode unit, between the electrode width of the pixel electrode unit that the wavelength of the coloured light after the corresponding color film of light transmission is relatively long and electrode, crack width sum is not less than crack width sum between the electrode width of other pixel electrode unit and electrode.
Wherein, described N is 3, and color film is RGB three primary colors color modes, and three pixel electrode unit are respectively red sub-pixel electrode unit, green sub-pixels electrode unit and blue subpixels electrode unit; For red sub-pixel electrode unit and green sub-pixels electrode unit, between its electrode width and electrode, crack width sum is greater than crack width sum between the electrode width of blue subpixels electrode unit and electrode.
Wherein, for red sub-pixel electrode unit and green sub-pixels electrode unit, between its electrode width and electrode, the slit width sum is 5.5 ~ 10.5 μ m, and for the blue subpixels electrode unit, between its electrode width and electrode, the slit width sum is 5 ~ 10 μ m.
Wherein, for red sub-pixel electrode unit and green sub-pixels electrode unit, its electrode width is 2 μ m, and between electrode, slit width is 4.5 μ m; For the blue subpixels electrode unit, its electrode width is 2 μ m, and between electrode, the crack width is 4 μ m.
Wherein, for red sub-pixel electrode unit and green sub-pixels electrode unit, its electrode width is 2 μ m, and between electrode, slit width is 6 μ m; For the blue subpixels electrode unit, its electrode width is 2 μ m, and between electrode, the crack width is 4 or 5 μ m.
Wherein, in described N pixel electrode unit, the electrode of the pixel electrode unit that the wavelength of the coloured light after the corresponding color film of light transmission is relatively long and the angle of grid line are not less than the electrode and the angle of grid line of other pixel electrode unit, and described grid line is the grid line of the described pixel electrode of driving unit.
Wherein, described N is 3, and color film is RGB three primary colors color modes, and three pixel electrode unit are respectively red sub-pixel electrode unit, green sub-pixels electrode unit and blue subpixels electrode unit; Described three pixel electrode unit separately pixel electrode and the angle of grid line be 4 ° ~ 15 °.
Wherein, the angle of the electrode of described red sub-pixel electrode unit and green sub-pixels electrode unit and grid line is 7 °.
Wherein, the angle of the electrode of described blue subpixels electrode unit and grid line is 4 °.
The utility model also provides a kind of array base palte that comprises the described pixel electrode structure of above-mentioned any one.
The utility model also provides a kind of display device that comprises the described pixel electrode structure of above-mentioned any one.
(3) beneficial effect
With respect to prior art, technical solutions of the utility model adopt the method for the size of adjusting the inner sub-pixel slot of pixel electrode, control the transmitance of ADS LCD, and then eliminate color offset phenomenon.Particularly, in the Pixel Design of Transflective ADS LCD of the present utility model, by increase the transmitance that sees through blue pixel in the district in the medium tone of Transflective ADS LCD, solve partially yellow color offset phenomenon.It is in the Array technological process, design the slot of the pixel electrode of formed blue pixel different from red pixel and green pixel, being about to it designs to such an extent that possess higher transmitance is arranged, the anisotropy that solves thus in medium tone because of refractive index increases the color offset phenomenon of Huang partially that occurs in the zone that sees through that causes, thereby can produce the outstanding Transflective LCD of image quality.
Description of drawings
Fig. 1 is the schematic diagram that in prior art, under the ADS pattern, refractive index changes with color range;
Fig. 2 is the schematic diagram that concerns of the transmissivity of redgreenblue and optical performance;
Fig. 3 is that the utility model is at the schematic diagram of middle GTG place's raising blue light pixel intensity;
Fig. 4 is the structural representation of the inner pixel electrode of pixel electrode provided by the utility model;
Fig. 5 is the structural representation of the inner pixel electrode of pixel electrode provided by the utility model.
Embodiment
For making the purpose of this utility model, content and advantage clearer, below in conjunction with drawings and Examples, embodiment of the present utility model is described in further detail.
in existing pixel electrode structure, comprise the red sub-pixel electrode unit, blue subpixels electrode unit and green sub-pixels electrode unit, (electrode is strip to have separately certain electrode widths W in described three pixel electrode unit, W is the width of each) and electrode between slit width L, generally that slit width between the electrode width identical electrodes in described three pixel electrode unit is also identical, and the electrode in three pixel electrode unit all is set to identical angle of inclination, this make liquid crystal from normal white state to the process of gray scale states deflection, the transmitance of ruddiness pixel can become large relatively, thereby cause partially yellow color offset phenomenon to produce.
In order to address the above problem, the technical thought of the utility model embodiment is, as shown in Figure 3, liquid crystal from normal white state to the process of gray scale states deflection, improve the brightness of blue light pixel, the transmitance that so just can restrain the ruddiness pixel is excessive, and then eliminates the polarisation phenomenon.
For achieving the above object, the pixel electrode structure that provides of the utility model embodiment is different from pixel electrode structure in the past.As shown in Figure 4, electrode width represents with W, and between electrode, slit width represents with L, the electrode widths W of red sub-pixel electrode unit
rElectrode widths W with the green sub-pixels electrode unit
gIdentical, slit width L between the electrode of crack width Lr and green sub-pixels electrode unit between the electrode of red sub-pixel electrode unit
gIdentical.And difference is, the electrode widths W in the blue subpixels electrode unit
bWith W
rAnd W
gDifference, slit width L between electrode
bWith L
rAnd L
gDifferent.Color for fear of display frame is partially yellow, makes W
b+ L
bValue less than W
r+ L
rValue, namely in the situation that whole pixel electrode cell size is identical, the value of W+L is less, the arrangement of pixel and slit becomes relative intensive, especially in the situation that three pixel electrode unit W are identical, L
bLess, the pixel electrode number of blue subpixels electrode unit can increase relatively, can form more more intensive horizontal component of electric fields with public electrode, and transmitance can increase relatively.Thereby, with respect to the ruddiness pixel, improved the transmitance of blue light pixel, the transmitance of restraining the ruddiness pixel is excessive, can make the liquid crystal optical efficiency of blue light pixel compare the ruddiness pixel and promote to some extent, so just can eliminate increases the color offset phenomenon that produces at middle GTG place because of the refractive index anisotropy.
Further, for red sub-pixel electrode unit and green sub-pixels electrode unit, between its electrode width and electrode, the slit width sum is 5.5 ~ 10.5 μ m, and for the blue subpixels electrode unit, between its electrode width and electrode, the slit width sum is 5 ~ 10 μ m.Preferably, for the product of this class of mobile terminal, the W of its dot structure
r, W
gAnd W
bBe 2 μ m, L
rAnd L
gBe 4.5 μ m, L
bBe 4 μ m.For other products, the W of its dot structure
r, W
gAnd W
bBe 2 μ m, L
rAnd L
gBe 6 μ m, L
bBe 4 or 5 μ m.
Except the above-mentioned W that the blue subpixels electrode unit is set
b+ L
bOutside width is relatively little, can also improve by electrode incline angle in the blue subpixels electrode unit relatively little (with the angle of the grid line that drives this pixel electrode unit) is set the transmitance of blue subpixels electrode unit.
As shown in Figure 5, in will the red sub-pixel electrode unit, the electrode angle be set to identically with the green sub-pixels electrode unit, and in the blue subpixels electrode unit, the angle of inclination of electrode is set to angle of inclination less than electrode in red sub-pixel electrode unit and green sub-pixels electrode unit.
Wherein, the electrode incline angle that is preferably red sub-pixel electrode unit and green sub-pixels electrode unit is set to 7 °; And the electrode incline angle of blue subpixels electrode unit is set to 4 °.The same like this transmitance that can improve the blue light pixel, and then the liquid crystal optical efficiency that makes the blue light pixel is compared the ruddiness pixel and is promoted to some extent, the transmitance of restraining the ruddiness pixel is excessive, the final elimination because of the color offset phenomenon of refractive index anisotropy increase in the place's generation of middle GTG.
Also can adjust simultaneously by above-mentioned dual mode the W of blue subpixels electrode unit
b+ L
bWidth and electrode incline angle further promote the transmitance of blue light pixel.
Pixel electrode structure of the present utility model is not limited to the rgb color pattern, can be cmyk color pattern or self-defining color mode.If want to promote the transmitance of a certain colored pixels, the electrode incline angle less in making the W+L width of corresponding pixel electrode unit and/or turn pixel electrode down when making (with the angle of the grid line that drives this pixel electrode unit) improves the transmitance of a certain pixel electrode unit.Usually transmitance increases relatively because the long light of wavelength becomes large with the anisotropy of liquid-crystal refractive-index, therefore only thereby the generation colour cast need make the W+L of the wavelength of the coloured light after the corresponding color film of light transmission relatively short pixel electrode unit and/or the electrode incline angle is relatively little gets final product.
Simultaneously, the utility model also provides a kind of array base palte and display device that comprises the pixel electrodes structure, described display device can for: liquid crystal panel, Electronic Paper, oled panel, LCD TV, liquid crystal display, digital album (digital photo frame), mobile phone, panel computer etc. have product or the parts of any Presentation Function.
The above is only preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model know-why; can also make some improvement and distortion, these improvement and distortion also should be considered as protection domain of the present utility model.
Claims (12)
1. pixel electrode structure, described pixel electrode structure comprises N pixel electrode unit, described N pixel electrode unit is one of them color in corresponding color film N look pattern respectively, the different coloured light of corresponding demonstration, it is characterized in that, in described N pixel electrode unit between separately electrode width and electrode crack width sum different, N 〉=2 wherein.
2. pixel electrode structure as claimed in claim 1, it is characterized in that, in described N pixel electrode unit, between the electrode width of the pixel electrode unit that the wavelength of the coloured light after the corresponding color film of light transmission is relatively long and electrode, crack width sum is not less than crack width sum between the electrode width of other pixel electrode unit and electrode.
3. pixel electrode structure as claimed in claim 2, it is characterized in that, described N is 3, and color film is RGB three primary colors color modes, and three pixel electrode unit are respectively red sub-pixel electrode unit, green sub-pixels electrode unit and blue subpixels electrode unit; For red sub-pixel electrode unit and green sub-pixels electrode unit, between its electrode width and electrode, crack width sum is greater than crack width sum between the electrode width of blue subpixels electrode unit and electrode.
4. pixel electrode structure as claimed in claim 3, it is characterized in that, for red sub-pixel electrode unit and green sub-pixels electrode unit, between its electrode width and electrode, the slit width sum is 5.5～10.5 μ m, for the blue subpixels electrode unit, between its electrode width and electrode, the slit width sum is 5～10 μ m.
5. pixel electrode structure as claimed in claim 4, is characterized in that, for red sub-pixel electrode unit and green sub-pixels electrode unit, its electrode width is 2 μ m, and between electrode, slit width is 4.5 μ m; For the blue subpixels electrode unit, its electrode width is 2 μ m, and between electrode, the crack width is 4 μ m.
6. pixel electrode structure as claimed in claim 4, is characterized in that, for red sub-pixel electrode unit and green sub-pixels electrode unit, its electrode width is 2 μ m, and between electrode, slit width is 6 μ m; For the blue subpixels electrode unit, its electrode width is 2 μ m, and between electrode, the crack width is 4 or 5 μ m.
7. pixel electrode structure as described in any one in claim 1～6, it is characterized in that, in described N pixel electrode unit, the electrode of the pixel electrode unit that the wavelength of the coloured light after the corresponding color film of light transmission is relatively long and the angle of grid line are not less than the electrode and the angle of grid line of other pixel electrode unit, and described grid line is the grid line of the described pixel electrode of driving unit.
8. pixel electrode structure as claimed in claim 7, it is characterized in that, described N is 3, and color film is RGB three primary colors color modes, and three pixel electrode unit are respectively red sub-pixel electrode unit, green sub-pixels electrode unit and blue subpixels electrode unit; Described three pixel electrode unit separately pixel electrode and the angle of grid line be 4 °～15 °.
9. pixel electrode structure as claimed in claim 8, is characterized in that, the electrode of described red sub-pixel electrode unit and green sub-pixels electrode unit and the angle of grid line are 7 °.
10. pixel electrode structure as claimed in claim 8, is characterized in that, the electrode of described blue subpixels electrode unit and the angle of grid line are 4 °.
11. an array base palte is characterized in that, comprises pixel electrode structure as described in any one in claim 1～10.
12. a display device is characterized in that, comprises pixel electrode structure as described in any one in claim 1～10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220611097 CN202995198U (en) | 2012-11-16 | 2012-11-16 | Pixel electrode structure, array substrate and display device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220611097 CN202995198U (en) | 2012-11-16 | 2012-11-16 | Pixel electrode structure, array substrate and display device |
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| CN202995198U true CN202995198U (en) | 2013-06-12 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102937763A (en) * | 2012-11-16 | 2013-02-20 | 京东方科技集团股份有限公司 | Pixel electrode structure, array substrate and display device |
| CN103926756A (en) * | 2013-12-31 | 2014-07-16 | 厦门天马微电子有限公司 | Liquid crystal display panel and liquid crystal display device |
| CN103926721A (en) * | 2013-12-31 | 2014-07-16 | 厦门天马微电子有限公司 | Liquid crystal display panel and liquid crystal display panel |
| CN104614904A (en) * | 2015-03-11 | 2015-05-13 | 京东方科技集团股份有限公司 | Pixel structure and driving method thereof, array baseplate and display device |
| US9678394B2 (en) | 2014-12-30 | 2017-06-13 | Xiamen Tianma Micro-Electronics Co., Ltd. | Display panel and display device |
| CN109300441A (en) * | 2018-10-25 | 2019-02-01 | 深圳市华星光电技术有限公司 | Multidomain dot structure |
| CN112540479A (en) * | 2020-11-04 | 2021-03-23 | 惠科股份有限公司 | Curved surface display panel, manufacturing method and display device |
-
2012
- 2012-11-16 CN CN 201220611097 patent/CN202995198U/en not_active Withdrawn - After Issue
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102937763A (en) * | 2012-11-16 | 2013-02-20 | 京东方科技集团股份有限公司 | Pixel electrode structure, array substrate and display device |
| CN102937763B (en) * | 2012-11-16 | 2015-08-26 | 京东方科技集团股份有限公司 | A kind of pixel electrode structure, array base palte and display device |
| CN103926756A (en) * | 2013-12-31 | 2014-07-16 | 厦门天马微电子有限公司 | Liquid crystal display panel and liquid crystal display device |
| CN103926721A (en) * | 2013-12-31 | 2014-07-16 | 厦门天马微电子有限公司 | Liquid crystal display panel and liquid crystal display panel |
| US9678394B2 (en) | 2014-12-30 | 2017-06-13 | Xiamen Tianma Micro-Electronics Co., Ltd. | Display panel and display device |
| DE102015110477B4 (en) | 2014-12-30 | 2019-05-09 | Tianma Micro-Electronics Co., Ltd. | Display panel, method of manufacturing the display panel and display device |
| CN104614904A (en) * | 2015-03-11 | 2015-05-13 | 京东方科技集团股份有限公司 | Pixel structure and driving method thereof, array baseplate and display device |
| WO2016141679A1 (en) * | 2015-03-11 | 2016-09-15 | 京东方科技集团股份有限公司 | Pixel structure and driving method thereof, array substrate and display device |
| CN109300441A (en) * | 2018-10-25 | 2019-02-01 | 深圳市华星光电技术有限公司 | Multidomain dot structure |
| WO2020082470A1 (en) * | 2018-10-25 | 2020-04-30 | 深圳市华星光电技术有限公司 | Multi-domain pixel structure |
| CN112540479A (en) * | 2020-11-04 | 2021-03-23 | 惠科股份有限公司 | Curved surface display panel, manufacturing method and display device |
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Granted publication date: 20130612 Effective date of abandoning: 20150826 |
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