CN101539695B - Fringe field switch type liquid crystal display panel - Google Patents
Fringe field switch type liquid crystal display panel Download PDFInfo
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- CN101539695B CN101539695B CN2008100862756A CN200810086275A CN101539695B CN 101539695 B CN101539695 B CN 101539695B CN 2008100862756 A CN2008100862756 A CN 2008100862756A CN 200810086275 A CN200810086275 A CN 200810086275A CN 101539695 B CN101539695 B CN 101539695B
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Abstract
The invention relates to a fringe field switch type liquid crystal display panel, which comprises an active element array substrate, a subtend substrate and a liquid crystal display layer, wherein the liquid crystal layer is configured between the active element array substrate and the subtend substrate. A pixel electrode pattern layer of the active element array substrate is provided with a first connecting part and a plurality of first assigned branches, second assigned branches, third assigned branches and forth assigned branches which are connected with the first connecting part, wherein the first assigned branches, the second assigned braches, the third assigned branches and the forth assigned branches extend towards a first direction, a second direction, a third direction and a forth direction respectively. The acute angles between the first direction and the horizontal direction as well as between the second direction and the horizontal direction are 7 degrees, and the acute angles between the third direction and the horizontal direction as well as between the fourth direction and the horizontal direction are 15 degrees.
Description
Technical field
The invention relates to a kind of display panels, and particularly relevant for a kind of fringe field switch type (Fringe Field Switching, FFS) display panels that can effectively improve color offset phenomenon.
Background technology
Social now multimedia technology is quite flourishing, is indebted to the progress of semiconductor element and display device mostly.With regard to display, 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.In order to let LCD that better display quality is arranged; Developed at present the LCD that various wide viewing angles on the market; Common for example have a copline suitching type (in-plane switching; IPS) (multi-domainvertically alignment is MVA) with fringe field switch type (fringe field switching) LCD etc. for LCD, multidomain vertical alignment type.
Like the LCD that U.S. case US2002/0041354 is proposed, its liquid crystal layer only can be marked off two orientation fields (domain).When this can cause the user to change the visual angle of watching picture, the brightness meeting that is easy to perceive picture changed with the visual angle, and then causes display frame that phenomenons such as colour cast and color saturation deficiency are arranged.This not only can cause the display quality of LCD to descend, and the user visually also has uncomfortable impression, and improved necessity is arranged in fact.
Summary of the invention
The present invention provides a kind of fringe field switch type liquid crystal display panel, and it can effectively improve the phenomenon that display frame has colour cast.
The present invention provides a kind of fringe field switch type liquid crystal display panel, and it comprises an active elements array substrates, a subtend substrate and a liquid crystal layer.Wherein, liquid crystal layer is disposed between active elements array substrates and the subtend substrate.Active elements array substrates of the present invention comprises a substrate and a plurality of pixel cell, and these pixel cells are disposed on the substrate.Each pixel cell comprises an active component, one first insulation course, has altogether with electrode layer, one second insulation course and a pixel electrode pattern layer.Wherein, active component is disposed on the substrate, and active component has first insulation course that extends on the substrate.In addition, the common electrode layer is disposed on the substrate, and first insulation course covers this common electrode layer.The second above-mentioned insulation course covers the active component and first insulation course.In addition; The pixel electrode pattern layer is disposed on second insulation course and with active component and electrically connects, and wherein the pixel electrode pattern layer has one first connecting portion and a plurality of first orientation branches that are connected with first connecting portion, a plurality of second orientation branch, a plurality of the 3rd orientation branch and a plurality of the 4th orientation branch.Wherein, each the first, second, third and the 4th orientation branch stretches to the edge towards a first direction, a second direction, a third direction and a four directions respectively.The folded acute angle of first, second direction and horizontal direction be 7 the degree, and the 3rd, the four directions to the folded acute angle of horizontal direction be 15 the degree.
In one embodiment of this invention, above-mentioned first, second, third and four directions to and the folded acute angle of a horizontal direction between 1 degree～20 degree.
In one embodiment of this invention, the first above-mentioned connecting portion is between first and second orientation branch, and between the 3rd and the 4th orientation branch.
In one embodiment of this invention, an end of the first above-mentioned orientation branch connects first connecting portion and the other end connects the second orientation branch, and an end of the 3rd orientation branch connects first connecting portion and the other end connects the 4th orientation branch.
In one embodiment of this invention, above-mentioned pixel electrode pattern layer also comprises one second connecting portion.The first orientation branch and the second orientation branch are connected to each other and between first connecting portion and second connecting portion, and the 3rd orientation branch and the 4th orientation branch are connected to each other and between first connecting portion and second connecting portion.
In one embodiment of this invention, above-mentioned pixel electrode pattern layer has a triangle slit.This triangle slit is between the most inboard the first and the 3rd orientation branch of pixel electrode pattern layer.In addition, the dual-side of triangle slit difference the parallel first and the 3rd orientation branch.
In one embodiment of this invention, above-mentioned pixel electrode pattern layer has a triangle slit.This triangle slit is between the most inboard the second and the 4th orientation branch of pixel electrode pattern layer.In addition, the dual-side of triangle slit difference the parallel second and the 4th orientation branch.
In one embodiment of this invention, above-mentioned subtend substrate is a colored optical filtering substrates.
Pixel electrode pattern layer of the present invention has the first, second, third and the 4th orientation branch of extending towards different directions, liquid crystal layer being marked off four orientation fields, and then can effectively improve the phenomenon that display frame has colour cast.Therefore, fringe field switch type liquid crystal display panel of the present invention can have better display quality.
Description of drawings
For let above-mentioned purpose of the present invention, feature and advantage can be more obviously understandable, elaborate below in conjunction with the accompanying drawing specific embodiments of the invention, wherein:
Figure 1A is the diagrammatic cross-section of the fringe field switch type liquid crystal display panel of first embodiment of the invention.
Figure 1B is the vertical view of active elements array substrates among Figure 1A.
Fig. 2 is the vertical view of second embodiment of the invention active elements array substrates.
Fig. 3 is the vertical view of third embodiment of the invention active elements array substrates.
The main element symbol description:
100: fringe field switch type liquid crystal display panel
200,200,200: active elements array substrates
210: substrate
212: sweep trace
214: data line
220: pixel cell
230: active component
230c: channel layer
230d: drain electrode
230g: grid
230s: source electrode
230m: ohmic contact layer
240: the first insulation courses
250: the common electrode layer
252: shared distribution
254: transparency electrode
260: the second insulation courses
270: the pixel electrode pattern layer
271,271,271: the first connecting portions
272: the second connecting portions
273,273,273: the first orientation branches
274,274,274: the second orientation branches
275,275,275: the three orientation branches
276,276,276: the four orientation branches
300: the subtend substrate
400: liquid crystal layer
H: horizontal direction
S: triangle slit
X1: first direction
X2: second direction
X3: third direction
X4: the four directions to
A-A ', B-B ': profile line
Embodiment
Figure 1A is the diagrammatic cross-section of the fringe field switch type liquid crystal display panel of first embodiment of the invention, and Figure 1B is the vertical view of active elements array substrates among Figure 1A.Wherein, the sectional view of active elements array substrates is A-A ' and a B-B ' profile line and illustrate in Figure 1B among Figure 1A.Please be simultaneously with reference to Figure 1A and Figure 1B; (fringe field switching liquidcrystal display panel, FFSLCD) 100 comprise an active elements array substrates 200, a subtend substrate 300 and a liquid crystal layer 400 to fringe field switch type liquid crystal display panel of the present invention.Wherein, liquid crystal layer 400 is disposed between active elements array substrates 200 and the subtend substrate 300.Above-mentioned subtend substrate 300 can be colored optical filtering substrates.Certainly, if active elements array substrates 200 is processed with COA (color filter on array) technology, then subtend substrate 300 can be the glass substrate of printing opacity.
Say that at length active elements array substrates 200 of the present invention comprises a substrate 210 and a plurality of pixel cells (pixel unit) 220 (only showing a pixel cell 220 among Figure 1B for explanation) that are disposed on the substrate 210.Shown in Figure 1A, this pixel cell 220 comprises an active component 230, one first insulation course 240, altogether with electrode layer 250, one second insulation course 260 and a pixel electrode pattern layer 270.Wherein, active component 230 is disposed on the substrate 210.In one embodiment, active component 230 mainly is to be made up of a grid 230g, one source pole 230s, a drain electrode 230d, a channel layer 230c and an ohmic contact layer 230m.The grid 230g that is positioned on the substrate 210 can electrically connect with the one scan line 212 shown in Figure 1B, and source electrode 230s can electrically connect with a data line 214.
In addition, first insulation course 240 can cover grid 230g, and by in the active component 230 and extend on the substrate 210, and channel layer 230c is disposed on first insulation course 240 of grid 230g top.In order to reduce the contact impedance between semiconductor material and the metal material, ohmic contact layer 230m can be disposed between source electrode 230s and the channel layer 230c and drain between 230d and the channel layer 230c.Active component 220 shown in Figure 1A is the structure of bottom-gate (bottom gate).Certainly, have common knowledge the knowledgeable in the affiliated technical field and should know that active component 220 also can select the structure of top grid (top gate) for use, at this only in order to illustrate painstakingly restriction.
In addition, second insulation course 260 can cover active component 230 and first insulation course 240 partly.Pixel electrode pattern layer 270 of the present invention is disposed on second insulation course 260, and electrically connects with active component 230 through drain electrode 230d.
Specifically, the pixel electrode pattern layer 270 shown in Figure 1B has one first connecting portion 271 and a plurality of first orientation branches 273 that are connected with first connecting portion 271, a plurality of second orientation branch 274, a plurality of the 3rd orientation branch 275 and a plurality of the 4th orientation branches 276.Here be noted that the above-mentioned first orientation branch 273, the second orientation branch 274, the 3rd orientation branch 275 and the 4th orientation branch 276 directly are connected or are connected to first connecting portion 271 indirectly.Present embodiment will be that example is explained with direct-connected mode, and other connected mode will elaborate in second embodiment and the 3rd embodiment.
Particularly, first connecting portion 271 of the present invention is connected between the first orientation branch 273 and the second orientation branch 274, and is connected between the 3rd orientation branch 275 and the 4th orientation branch 276.It should be noted that the first orientation branch 273, the second orientation branch 274, the 3rd orientation branch 275 and the 4th orientation branch 276 stretch to the X4 edge with a four directions towards a first direction X1, a second direction X2, a third direction X3 respectively.
Here be noted that above-mentioned first direction X1, second direction X2, third direction X3 and four directions can be between 1 degree～20 degree to X4 and the folded acute angle of horizontal direction H.For example, the folded acute angle, theta 1 of first direction X1, second direction X2 and horizontal direction H is 7 degree, and third direction X3, four directions are 15 to spend to X4 and the folded acute angle, theta 2 of horizontal direction H.In other words, pixel electrode pattern layer 270 of the present invention has the electrode branches of four kinds of different directions at least, to form the electric field of different directions.Thus, the first orientation branch 273, the second orientation branch 274, the 3rd orientation branch 275 and the 4th orientation branch 276 just can mark off four kinds of orientation fields (domain) with liquid crystal layer 400.Therefore, fringe field switch type liquid crystal display panel 100 of the present invention can effectively improve the color offset phenomenon of display frame, with further raising display quality.
Second embodiment
Second embodiment and first embodiment are similar, and both main difference parts are the layout (lay out) of pixel electrode pattern layer.Fig. 2 is the vertical view of second embodiment of the invention active elements array substrates.Please refer to Fig. 2, an end of the present embodiment first orientation branch 273 is connected to first connecting portion 271, and the other end is connected to the second orientation branch 274.On the other hand, an end of the 3rd orientation branch 275 is connected to first connecting portion 271, and the other end is connected to the 4th orientation branch 276.Similarly, the first orientation branch 273, the second orientation branch 274, the 3rd orientation branch 275 and the 4th orientation branch 276 extend towards different directions respectively.
Can know by Fig. 2 and to learn that first connecting portion 271 can be through different connected modes, and change its position.Generally speaking, the electric field of the joint of first connecting portion 271 and each orientation branch causes the tilt state of liquid crystal molecule unusual easily, and then causes display frame to produce dark line.Therefore, this adjustment mode can be passed through in the position of present embodiment first connecting portion 271, and adjust to colored optical filtering substrates on black matrix (not illustrating) corresponding.Thus, can effectively reduce black line through black covering of matrix and produce, and then can promote penetrance and quality of display pictures.
The 3rd embodiment
The 3rd embodiment and second embodiment are similar, and both main difference parts are the layout (1ay out) of pixel electrode pattern layer.Fig. 3 is the vertical view of third embodiment of the invention active elements array substrates.Please refer to Fig. 3, the pixel electrode pattern layer 270 of present embodiment also comprises one second connecting portion 272.Say that at length the first orientation branch 273 and the second orientation branch 274 are connected to each other, and between first connecting portion 271 and second connecting portion 272.In addition, the 3rd orientation branch 275 and the 4th orientation branch 276 are connected to each other, and between first connecting portion 271 and second connecting portion 272.
In order effectively to avoid display frame to produce dark line, pixel electrode pattern layer 270 has a triangle slit S.This triangle slit S is between the most inboard first orientation branch 273 and the 3rd orientation branch 275 of pixel electrode pattern layer 270.Specifically, the dual-side of triangle slit S, parallel first orientation branch 273 and the 3rd orientation branch 275 are unusual with the electric field of avoiding this place to produce respectively.Similarly, triangle slit S can be between the most inboard second orientation branch 274 and the 4th orientation branch 276 of pixel electrode pattern layer 270.The dual-side of triangle slit S, parallel second orientation branch 274 and the 4th orientation branch 276 respectively.
In sum, pixel electrode pattern layer of the present invention has the first, second, third and the 4th orientation branch of extending towards different directions, and then can liquid crystal layer be marked off at least four orientation fields, improves the phenomenon that display frame has colour cast with effective.Therefore, fringe field switch type liquid crystal display panel of the present invention can have good display quality.
Though the present invention discloses as above with preferred embodiment; Right its is not that any those skilled in the art are not breaking away from the spirit and scope of the present invention in order to qualification the present invention; When can doing a little modification and perfect, so protection scope of the present invention is when being as the criterion with what claims defined.
Claims (8)
1. fringe field switch type liquid crystal display panel comprises:
One active elements array substrates comprises:
One substrate;
A plurality of pixel cells are disposed on this substrate, and each pixel cell comprises:
One active component is disposed on this substrate, and this active component has one first insulation course that extends on this substrate;
Use electrode layer altogether, between this substrate and this first insulation course;
One second insulation course covers this active component and this first insulation course;
One pixel electrode pattern layer; Be disposed on this second insulation course and and electrically connect with this active component; Wherein this pixel electrode pattern layer has one first connecting portion and a plurality of first orientation branches that are connected with this first connecting portion, a plurality of second orientation branch, a plurality of the 3rd orientation branch and a plurality of the 4th orientation branch; Wherein, Each the first, second, third and the 4th orientation branch stretches to the edge with a four directions towards a first direction, a second direction, a third direction respectively, and the folded acute angle of this first, second direction and this horizontal direction is 7 to spend, and the 3rd, the four directions is to being 15 to spend with the folded acute angle of this horizontal direction;
One subtend substrate; And
One liquid crystal layer is disposed between this active elements array substrates and this subtend substrate.
2. fringe field switch type liquid crystal display panel as claimed in claim 1 is characterized in that, this first, second, third and the four directions to and the folded acute angle of a horizontal direction between 1 degree～20 degree.
3. fringe field switch type liquid crystal display panel as claimed in claim 1 is characterized in that, this first connecting portion is between this first orientation branch and this second orientation branch, and between the 3rd orientation branch and the 4th orientation branch.
4. fringe field switch type liquid crystal display panel as claimed in claim 1; It is characterized in that; One end of this first orientation branch connects this first connecting portion and this second orientation branch of other end connection, and an end of the 3rd orientation branch connects this first connecting portion and other end connection the 4th orientation branch.
5. fringe field switch type liquid crystal display panel as claimed in claim 1; It is characterized in that; This pixel electrode pattern layer also comprises one second connecting portion; This first orientation branch and this second orientation branch is connected to each other and between this first connecting portion and this second connecting portion, the 3rd orientation branch and the 4th orientation branch are connected to each other and between this first connecting portion and this second connecting portion.
6. fringe field switch type liquid crystal display panel as claimed in claim 5; It is characterized in that; This pixel electrode pattern layer also has a triangle slit; This triangle slit is between the most inboard this first and the 3rd orientation branch of this pixel electrode pattern layer, and the dual-side of this triangle slit is distinguished parallel this first and the 3rd orientation branch.
7. fringe field switch type liquid crystal display panel as claimed in claim 5; It is characterized in that; This pixel electrode pattern layer also has a triangle slit; This triangle slit is between the most inboard this second and the 4th orientation branch of this pixel electrode pattern layer, and the dual-side of this triangle slit is distinguished parallel this second and the 4th orientation branch.
8. fringe field switch type liquid crystal display panel as claimed in claim 1 is characterized in that, this subtend substrate is a colored optical filtering substrates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100862756A CN101539695B (en) | 2008-03-19 | 2008-03-19 | Fringe field switch type liquid crystal display panel |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100862756A CN101539695B (en) | 2008-03-19 | 2008-03-19 | Fringe field switch type liquid crystal display panel |
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| Publication Number | Publication Date |
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| CN101539695A CN101539695A (en) | 2009-09-23 |
| CN101539695B true CN101539695B (en) | 2012-06-06 |
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| CN2008100862756A Expired - Fee Related CN101539695B (en) | 2008-03-19 | 2008-03-19 | Fringe field switch type liquid crystal display panel |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102722055B (en) * | 2012-06-04 | 2015-06-17 | 深圳市华星光电技术有限公司 | Array substrate and liquid crystal display device |
| CN103926753B (en) * | 2013-10-18 | 2017-05-03 | 厦门天马微电子有限公司 | TFT (thin film transistor) array substrate and display panel |
| CN104570513A (en) * | 2014-12-29 | 2015-04-29 | 深圳市华星光电技术有限公司 | Pixel structure and liquid crystal display panel |
| KR102500229B1 (en) * | 2018-07-18 | 2023-02-16 | 삼성디스플레이 주식회사 | Display device |
| TWI674463B (en) * | 2018-07-19 | 2019-10-11 | 友達光電股份有限公司 | Display device |
| CN109917592B (en) * | 2019-03-11 | 2021-04-23 | Tcl华星光电技术有限公司 | Pixel electrode and liquid crystal display panel |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1607439A (en) * | 2003-10-14 | 2005-04-20 | 鸿富锦精密工业（深圳）有限公司 | Flat inside switching type liquid crystal display device |
| CN1737673A (en) * | 2002-04-15 | 2006-02-22 | 夏普株式会社 | Substrate for liquid crystal display and liquid crystal display having the same |
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2008
- 2008-03-19 CN CN2008100862756A patent/CN101539695B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1737673A (en) * | 2002-04-15 | 2006-02-22 | 夏普株式会社 | Substrate for liquid crystal display and liquid crystal display having the same |
| CN1607439A (en) * | 2003-10-14 | 2005-04-20 | 鸿富锦精密工业（深圳）有限公司 | Flat inside switching type liquid crystal display device |
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| CN101539695A (en) | 2009-09-23 |
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