CN102629039A - Array substrate and liquid crystal display - Google Patents
Array substrate and liquid crystal display Download PDFInfo
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- CN102629039A CN102629039A CN2011104251217A CN201110425121A CN102629039A CN 102629039 A CN102629039 A CN 102629039A CN 2011104251217 A CN2011104251217 A CN 2011104251217A CN 201110425121 A CN201110425121 A CN 201110425121A CN 102629039 A CN102629039 A CN 102629039A
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- base palte
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Abstract
The invention discloses an array substrate and a liquid crystal display, which relate to the field of liquid crystal display and can improve light-transmitting rate of the liquid crystal display. The array substrate comprises a public electrode, a pixel electrode layer and a first insulation layer arranged between the public electrode and the pixel electrode layer. The pixel electrode layer comprises a plurality of pixel electrodes. Gaps among the pixel electrodes are at least 10 micrometers. The liquid crystal display comprises the array substrate. The array substrate is used for improving transmittance of the liquid crystal display.
Description
Technical field
The present invention relates to field of liquid crystal display, relate in particular to a kind of array base palte and LCD.
Background technology
(Fringe Field Switching is a kind of wide viewing angle technology FFS) to fringe field switching mode, utilizes the fringe field that produces between public electrode and pixel electrode to drive liquid crystal, under the prerequisite at wide visual angle, has realized high transmitance.
The array base-plate structure of a kind of display of available technology adopting FFS pattern such as Fig. 1 institute comprise from bottom to top successively: signal wire 16, public electrode 12, first insulation course 13 and pixel electrode layer 14.Wherein, pixel electrode layer 14 comprises some pixel electrodes 11, in addition, is arranged on the signal wire 16 under the public electrode 12, separates with public electrode 12 through second insulation course 15.
In said structure, the inventor finds that there is following problem at least in prior art:
As shown in Figure 1, the spacing A of pixel electrode is generally 6 microns or 8 microns in the prior art, when driving liquid crystal; As shown in Figure 2; Between two contiguous pixel electrodes 11 electrical interference can take place, these two neighborhood pixels electrodes 11 have the xenogenesis electric charge respectively, and the different piece of same pixel electrode has like charges; Between pixel electrode and neighborhood pixels electrode, can produce horizontal component of electric field 17 like this; And horizontal component of electric field 17 can influence the rotation of liquid crystal molecule, makes the LCD transmitance reduce, and particularly the transmitance at each pixel electrode edge reduces.Shown in transmittance curve among Fig. 2 18, be the edge of pixel electrode and the edge of neighborhood pixels electrode in the zone that influenced by horizontal component of electric field 17, the phenomenon that transmitance reduces appears.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of array base palte and LCD, can improve the transmitance of LCD.
For achieving the above object, embodiments of the invention adopt following technical scheme:
A kind of array base palte comprises: public electrode, pixel electrode layer and be arranged on first insulation course between said public electrode, the pixel electrode layer, and said pixel electrode layer comprises some pixel electrodes, the spacing of said pixel electrode is at least 10 microns.
The said spacing of the embodiment of the invention is smaller or equal to 18 microns.
Preferably, the said spacing of the embodiment of the invention is 12 microns.
Further, this array base palte also comprises: be arranged on the signal wire of said public electrode downside, said signal wire separates through second insulation course and said public electrode.
The material of said public electrode and the material of said pixel electrode are transparent conductive material.
Spacing between said public electrode and the said pixel electrode layer is 0.1 micron to 0.6 micron.
Embodiments of the invention also provide a kind of LCD, comprising: array base palte of the present invention.
Array base palte in the embodiment of the invention and LCD; The spacing of pixel electrode is set at least 10 microns; Become big than prior art; Reduced because of electrically interfering the influence of the horizontal component of electric field that produces, made the transmitance at pixel electrode edge improve, thereby improved the transmitance of whole LCD.
Description of drawings
Fig. 1 is the structural representation of array base palte in the prior art;
Fig. 2 is the synoptic diagram that pixel electrode edge transmitance reduces in the prior art;
Fig. 3 is the structural representation one of array base palte in the embodiment of the invention one;
Fig. 4 is the schematic top plan view of pixel electrode layer in the embodiment of the invention one;
Transmitance synoptic diagram when Fig. 5 is 6 microns to 18 microns for embodiment of the invention pixel electrode spacing;
Fig. 6 is the structural representation two of array base palte in the embodiment of the invention one.
Reference numeral:
The 11-pixel electrode, the 12-public electrode, 13-first insulation course, the 14-pixel electrode layer,
15-second insulation course, 16-signal wire, 17-horizontal component of electric field, 18-transmittance curve.
Embodiment
The embodiment of the invention provides a kind of array base palte and LCD, can improve the transmitance at pixel electrode edge, thereby improves the whole transmitance of LCD.
Below in conjunction with accompanying drawing the embodiment of the invention is described in detail.Embodiment described herein is only in order to explaining the present invention, and is not used in qualification the present invention.
Embodiment one
The embodiment of the invention provides a kind of array base palte; As shown in Figure 3; This array base palte comprises: public electrode 12, pixel electrode layer 14 and be arranged on first insulation course 13 between said public electrode 12, the pixel electrode layer 14; Said pixel electrode layer 14 comprises some pixel electrodes 11, and the spacing of said pixel electrode 11 is at least 10 microns.
The concrete formation figure of pixel electrode 11 is different in the present embodiment, and pixel electrode 11 shown in Figure 3 comprises three parts at a distance of 4 microns, and the width of each part is 2 microns.The concrete figure of pixel electrode 11 does not influence actual effect of the present invention.
The spacing of the said pixel electrode 11 of present embodiment refers to that a certain pixel electrode edge arrives the distance at next adjacent pixel electrode edge with it, spacing A as shown in Figure 3.
The spacing of the said pixel electrode 11 of present embodiment refers to the longitudinal pitch or the horizontal spacing of the pixel electrode 11 shown in Fig. 4, and signal wire shown in the figure 16 comprises data line and horizontal grid line longitudinally.
In the array base palte of the embodiment of the invention, the spacing A of pixel electrode is set at least 10 microns, has got rid of the influence of horizontal component of electric field 17 as much as possible, obtains high transmitance.When spacing A was 6～18 microns, transmitance was as shown in Figure 5.Transmitance was 2.13% when spacing A was 10 microns, 1.98% when comparing spacing A and being 8 microns, and transmitance obtains obviously to improve.Wherein, the transmission measurement environment is gated sweep voltage 0.8V, and pixel voltage is+8V/0.1V that public electrode is 4V.
The spacing A of the pixel electrode in the embodiment of the invention array base palte is set at least 10 microns; Reduced because of the electrically influence of the horizontal component of electric field of interference generation; Make the transmitance at each pixel electrode edge improve, thereby improved the whole transmitance of LCD.
Further, the said spacing A of the embodiment of the invention is smaller or equal to 18 microns.
When the spacing A of pixel electrode increases; Aperture opening ratio descends; And aperture opening ratio decline can make the transmitance of LCD reduce, so when array of designs substrate and display, the concrete size of said spacing A will be taken all factors into consideration various influence factors; Be provided with according to display specification and actual demand, the scope of the spacing A of the said pixel electrode of present embodiment is 10 microns≤A≤18 micron.
As a preferred version, the spacing A of the pixel electrode in the embodiment of the invention array base palte is 12 microns.
Saidly know that aperture opening ratio also can influence transmitance by top.As shown in Figure 5, when spacing A increased, transmitance increased thereupon; But the increase of spacing A also can make aperture opening ratio descend simultaneously, and aperture opening ratio decline makes the transmitance of LCD reduce, so take all factors into consideration these influence factors, the spacing A of the said pixel electrode of present embodiment is preferably 12 microns.
Further, as shown in Figure 6, the said array base palte of present embodiment also comprises: be arranged on the signal wire 16 of said public electrode downside, said signal wire 16 separates with said public electrode 12 through second insulation course 15.
When signal wire 16 was the grid line of horizontally set on the array base palte, the spacing A of pixel electrode shown in Figure 6 referred to the horizontal spacing of adjacent pixel electrodes; When signal wire 16 was the data line that vertically is provided with on the array base palte, the spacing A of pixel electrode shown in Figure 6 referred to the longitudinal pitch of adjacent pixel electrodes.
Wherein, the material of the material of said public electrode 12 and said pixel electrode 11 is transparent conductive material.
Alternatively, said transparent conductive material be indium tin oxide (Indium-tin-oxide, ITO) or indium-zinc oxide (Indium Zinc Oxide, IZO).
Wherein, the spacing between said public electrode and the said pixel electrode layer is 0.1 micron to 0.6 micron, pixel electrode and common interelectrode close like this, and the fringe field field of generation is powerful, and is the strongest to the driving of liquid crystal.
For having reduced the influence of electrical interference, the array base palte in the embodiment of the invention has carried out optimal design to the spacing of pixel electrode, make the transmitance at each pixel electrode edge improve, thereby the whole transmitance of LCD improves.
Embodiment two
Embodiments of the invention also provide a kind of LCD; Comprise: array base palte and color membrane substrates; Described array base palte comprises: public electrode, pixel electrode layer and be arranged on first insulation course between said public electrode, the pixel electrode layer; Said pixel electrode layer comprises some pixel electrodes, and the spacing of said pixel electrode is at least 10 microns.
Wherein, the said spacing of present embodiment is smaller or equal to 18 microns.
The said spacing A of LCD is set at least 10 microns in the embodiment of the invention, has reduced because of the electrically influence of the horizontal component of electric field of interference generation, has improved the whole transmitance of LCD.
As a preferred version, the spacing of the said pixel electrode in the present embodiment LCD is 12 microns.
Further, the said LCD of present embodiment also comprises: be arranged on the signal wire of said public electrode downside, said signal wire separates through second insulation course and said public electrode.
The material of said public electrode and the material of said pixel electrode be the transparent conductive material indium tin oxide (Indium tin oxide, ITO) or indium-zinc oxide (Indium Zinc Oxide, IZO).
Spacing between said public electrode and the said pixel electrode layer is 0.1 micron to 0.6 micron, and the fringe field that at this moment produces is the strongest to the driving of liquid crystal.
For having reduced the influence of electrical interference, the LCD in the embodiment of the invention has carried out optimizing setting to the spacing of pixel electrode, makes the transmitance at each pixel electrode edge improve, thereby the whole transmitance of LCD is improved.
The above; Be merely embodiment of the present invention, but protection scope of the present invention is not limited thereto, any technician who is familiar with the present technique field is in the technical scope that the present invention discloses; Can expect easily changing or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion by said protection domain with claim.
Claims (8)
1. array base palte; Comprise: public electrode, pixel electrode layer and be arranged on first insulation course between said public electrode, the pixel electrode layer; Said pixel electrode layer comprises some pixel electrodes, it is characterized in that, the spacing of said pixel electrode is at least 10 microns.
2. array base palte according to claim 1 is characterized in that said spacing is smaller or equal to 18 microns.
3. array base palte according to claim 1 is characterized in that, said spacing is 12 microns.
4. array base palte according to claim 1 is characterized in that, also comprises: be arranged on the signal wire of said public electrode downside, said signal wire separates through second insulation course and said public electrode.
5. array base palte according to claim 1 is characterized in that, the material of said public electrode and the material of said pixel electrode are transparent conductive material.
6. array base palte according to claim 5 is characterized in that,
Said transparent conductive material is indium tin oxide or indium-zinc oxide.
7. array base palte according to claim 1 is characterized in that, the spacing between said public electrode and the said pixel electrode layer is 0.1 micron to 0.6 micron.
8. a LCD is characterized in that, comprises each described array base palte of claim 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110425121.7A CN102629039B (en) | 2011-12-16 | 2011-12-16 | Array substrate and liquid crystal display |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110425121.7A CN102629039B (en) | 2011-12-16 | 2011-12-16 | Array substrate and liquid crystal display |
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| CN102629039A true CN102629039A (en) | 2012-08-08 |
| CN102629039B CN102629039B (en) | 2015-01-07 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103941453A (en) * | 2014-04-09 | 2014-07-23 | 合肥京东方光电科技有限公司 | Array substrate, display panel and display device |
| CN104678629A (en) * | 2013-11-26 | 2015-06-03 | 群创光电股份有限公司 | Display panel |
| CN114578621A (en) * | 2022-04-26 | 2022-06-03 | 厦门天马微电子有限公司 | Display panel and display device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104678629A (en) * | 2013-11-26 | 2015-06-03 | 群创光电股份有限公司 | Display panel |
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| CN114578621A (en) * | 2022-04-26 | 2022-06-03 | 厦门天马微电子有限公司 | Display panel and display device |
| CN114578621B (en) * | 2022-04-26 | 2023-12-05 | 厦门天马微电子有限公司 | Display panel and display device |
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| CN102629039B (en) | 2015-01-07 |
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