CN201237687Y - LCD device in poly-domain vertical orientation mode - Google Patents
LCD device in poly-domain vertical orientation mode Download PDFInfo
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- CN201237687Y CN201237687Y CNU2008201517693U CN200820151769U CN201237687Y CN 201237687 Y CN201237687 Y CN 201237687Y CN U2008201517693 U CNU2008201517693 U CN U2008201517693U CN 200820151769 U CN200820151769 U CN 200820151769U CN 201237687 Y CN201237687 Y CN 201237687Y
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- farmland
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Abstract
The utility model relates to a liquid crystal display device of polydomain vertical orientation mode, comprising a colored film base plate, an array base plate and a liquid crystal layer. A coplanar electrode is formed on the surface of the colored film base plate. The array base plate comprises a plurality of sub-pixel areas and a pixel electrode is arranged in each sub-pixel. The liquid crystal layer is filled between the colored film base plate and the array base plate. Wherein, the coplanar electrode or the pixel electrode is provided with a domain modulating device. The liquid crystal in each sub pixel is divided into a plurality of domain groups; the domain modulating device is provided with an extension part which is superposed with at least one domain group; and a plurality of domain groups have the same area after the superposition. By the domain modulating device or the extension part of a light shield layer or corroding part of pixel electrodes, a plurality of domain groups have the same area; even vertical and horizontal visibility is provided; and luminance difference and product percent of pass are not influenced.
Description
Technical field
The utility model relates to a kind of liquid crystal display device, particularly relates to a kind of multi-domain vertical orientation mode (Multi-domain Vertical Alignment, liquid crystal display device MVA/PVA).
Background technology
LCD is to use flat-panel monitor widely.LCD comprises two glass substrates and liquid crystal layer, and wherein, two substrates are provided with electrode (pixel electrode and common electrode), and liquid crystal layer is between two substrates.LCD is by being applied to voltage at electrode to produce electric field in liquid crystal layer, and the liquid crystal molecule in the liquid crystal layer is orientated under effect of electric field to regulate polarization of incident light.
Because multi-domain vertical orientation mode (Multi-domain Vertical Alignment, MVA/PVA) LCD has reaction velocity, wide visible angle, high transmittance, high contrast and perfect image quality faster, is used widely gradually in recent years.
Fig. 1 is the sub-pixel planar structure synoptic diagram of existing multi-domain vertical orientation mode display panels.Scan signal line 10 drive thin film transistors 13 write pixel electrode 14 with the voltage signal on the data signal line 12.Memory capacitance concentric line 28 forms storage capacitors with pixel electrode 14, keeps the voltage on the pixel electrode 14 stable, thereby drives liquid crystal deflecting element.Farmland modulating device 15 and farmland modulating device 16 on two substrates are divided into a plurality of farmlands with liquid crystal, make liquid crystal molecules tilt in different directions, thereby make reference viewing angle broaden.Wherein, the farmland modulating device can be projection or slit.Yet because the relation of dot structure, the farmland has different areas probably, is difficult to provide vertical uniformly and level visuality.Specifically, w1, w3, w5, w7 belongs to same farmland group, w2, w4, w6, w8 belongs to another farmland group, w1 wherein, and the w8 area equates, w2, the w7 area equates, w3, and the w6 area is equal, but because the relation of dot structure, w4, the w5 area does not wait, and the w5 area is slightly larger than w4, like this, two corresponding farmland group's areas do not wait, and cause the reduction of visual performance.
In order to realize that the farmland area equates, patent CN200610092258.4 has proposed between the change farmland width and has blocked unnecessary farmland area solution by the storage line flank.See also Fig. 2 A, to pixel electrode 82b, common electrode slit 92 is divided into four farmlands, equates for making A, B, four farmland areas of C, D, changes the ratio of Wa/Wb and Wc/Wd.Please continue the B referring to Fig. 2, the constant rate of Wa/Wb and Wc/Wd stretches out flank on memory capacitance concentric line 28, and memory capacitance concentric line flank 29 covers the farmland excess area, thereby keeps the effective brightness area in farmland to equate.
Though such scheme can be realized the farmland area and equate, but still have some problems.Fig. 2 A scheme has changed the width between the farmland, will cause the inconsistent of liquid crystal molecules tilt angle and response speed in the farmland of different in width, thereby produce luminance difference.Though Fig. 2 B does not have this problem, strengthened the overlapping area between storage line and pixel electrode and the data line, thereby increased the possibility that is short-circuited.
The utility model content
Technical problem to be solved in the utility model provides a kind of liquid crystal display device of multi-domain vertical orientation mode, can effectively keep the effective brightness area in farmland to equate, vertical uniformly and level visuality are provided, and does not influence luminance difference and manufacturing yield of products again.
For addressing the above problem, the utility model provides a kind of liquid crystal display device of multi-domain vertical orientation mode, comprising: a color membrane substrates, and its surface is formed with common electrode; Array basal plate comprises a plurality of subpixel area, is provided with pixel electrode in each sub-pixel; Liquid crystal layer is filled between described color membrane substrates and the array base palte; Wherein, be formed with the farmland modulating device on described common electrode or the pixel electrode, liquid crystal is divided into a plurality of farmland groups by described farmland modulating device in each sub-pixel, described farmland modulating device is provided with the extension, described extension at least with described a plurality of farmland groups in one stacked, described a plurality of farmland groups have essentially identical area after stacked.
In the liquid crystal display device of above-mentioned multi-domain vertical orientation mode, described farmland modulating device is projection or slit.
In the liquid crystal display device of above-mentioned multi-domain vertical orientation mode, modulating device extension, described farmland is positioned at place, sub-pixel edge.
The utility model provides the liquid crystal display device of another kind of multi-domain vertical orientation mode, comprising: a color membrane substrates, and its surface is formed with light shield layer and common electrode; Array basal plate comprises a plurality of subpixel area, is provided with pixel electrode in each sub-pixel; Liquid crystal layer is filled between described color membrane substrates and the array base palte; Wherein, be formed with the farmland modulating device on described common electrode or the pixel electrode, liquid crystal is divided into a plurality of farmland groups by described farmland modulating device in each sub-pixel, described light shield layer is provided with the extension, described extension at least with described a plurality of farmland groups in one stacked, described a plurality of farmland groups have essentially identical area after stacked.
In the liquid crystal display device of above-mentioned multi-domain vertical orientation mode, described farmland modulating device is projection or slit.
In the liquid crystal display device of above-mentioned multi-domain vertical orientation mode, modulating device extension, described farmland is positioned at place, sub-pixel edge.
The utility model also provides the liquid crystal display device of another kind of multi-domain vertical orientation mode, comprising: a color membrane substrates, and its surface is formed with common electrode; Array basal plate comprises a plurality of subpixel area, is provided with pixel electrode in each sub-pixel; Liquid crystal layer is filled between described color membrane substrates and the array base palte; Wherein, be formed with the farmland modulating device on described common electrode or the pixel electrode, liquid crystal is divided into a plurality of farmland groups by described farmland modulating device in each sub-pixel, the pixel electrode of described a plurality of farmlands group's correspondence has at least one to be fallen by partial etching, and described a plurality of farmland groups have essentially identical area after the pixel electrode part etching.
In the liquid crystal display device of above-mentioned multi-domain vertical orientation mode, described farmland modulating device is projection or slit.
In the liquid crystal display device of above-mentioned multi-domain vertical orientation mode, the described pixel electrode that is fallen by partial etching is positioned at place, sub-pixel edge.
The utility model contrast prior art has following beneficial effect: the utility model is by the extension of farmland modulating device or light shield layer, perhaps by the etched portions pixel electrode, make a plurality of farmland groups have essentially identical area, vertical uniformly and level visuality are provided, do not influence luminance difference and manufacturing yield of products again.
Description of drawings
Fig. 1 is the sub-pixel planar structure synoptic diagram of existing multi-domain vertical orientation mode display panels.
Fig. 2 A is existing by changing width adjustment farmland area synoptic diagram between the farmland.
Fig. 2 B existingly blocks unnecessary farmland area synoptic diagram by the storage line flank.
Fig. 3 A, 3B block unnecessary farmland area synoptic diagram by the extension of farmland modulating device in the utility model.
Fig. 4 A, 4B block unnecessary farmland area synoptic diagram by the extension of light shield layer in the utility model.
Fig. 5 A, 5B are that the utility model passes through etched portions pixel electrode adjustment farmland area synoptic diagram.
Among the figure:
10: scan signal line 12: data signal line
13: thin film transistor (TFT) 14: pixel electrode
15: slit 16: projection
17: the extension 19 of farmland modulating device: light shield layer
20: light shield layer extension 22: the pixel electrode part that is etched
28: memory capacitance concentric line 29: memory capacitance concentric line flank
82b: pixel electrode 92: common electrode slit
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing and exemplary embodiments.
The liquid crystal display device of the multi-domain vertical orientation mode that the utility model provides comprises: a color membrane substrates, and its surface is formed with common electrode; Array basal plate comprises a plurality of subpixel area, and each sub-pixel is positioned at the position that scan signal line 10 and data signal line 12 intersects, and is provided with pixel electrode 14 in it; Liquid crystal layer is filled between described color membrane substrates and the array base palte; Wherein, be formed with the farmland modulating device on described common electrode or the pixel electrode, the farmland modulating device is slit 15 or projection 16, and described farmland modulating device is divided into a plurality of farmland groups with liquid crystal in each sub-pixel.Please refer to Fig. 1, farmland w1, w3, w5, w7 belong to same farmland group, farmland w2, w4, w6, w8 belong to another farmland group, w1 wherein, and the w8 area equates, w2, the w7 area equates, w3, the w6 area is equal, but since the relation of dot structure, farmland w4, farmland w5 area does not wait, and farmland w5 area is slightly larger than farmland w4.
Fig. 3 A, 3B block unnecessary farmland area synoptic diagram by the extension of farmland modulating device in the utility model.
Please refer to Fig. 3 A, 3B, slit 15 or projection 16 that the sub-pixel of the liquid crystal display device in the present embodiment is set at respectively on common electrode or the pixel electrode are divided into a plurality of farmland groups, for making effective brightness area on each farmland equate, the farmland modulating device is taked to stretch out flank or widened the extension, to block the unnecessary area in farmland.The extension 17 of farmland modulating device is positioned at place, sub-pixel edge, be the flank shape and block farmland w5, the size of the extension 17 of farmland modulating device is by w4, the w5 area difference is determined, area with w5 after blocking and w4 is as the criterion about equally, thereby make effective brightness area unanimity on each farmland, obtained vertical uniformly and level visuality.
Fig. 4 B, 4B block unnecessary farmland area synoptic diagram by the extension of light shield layer in the utility model.
Please refer to Fig. 4 A, 4B, for making effective brightness area on each farmland equate that light shield layer 19 stretches out certain area, the light shield layer extension 20 that is positioned at place, sub-pixel edge is the flank shape and blocks farmland w5, and w5 after blocking and the area of w4 are about equally.
Fig. 5 A, 5B adjust farmland area synoptic diagram by the etched portions pixel electrode in the utility model.
Please refer to Fig. 5 A, 5B, for making effective brightness area on each farmland equate, the pixel electrode part of the area that the farmland is unnecessary etches away, the pixel electrode part 22 that is etched is positioned at the edge of farmland w5, pixel electrode after being etched forms one or two recess, and w5 after feasible being etched and the area of w4 are about equally.
The extension of farmland modulating device and light shield layer also can be other positions or shape, implements and adjust the farmland area to be as the criterion with convenient.Also can be other positions or shape in like manner to the etched portions pixel electrode.Extension in the foregoing description and pixel electrode recess are positioned at place, sub-pixel edge, except blocking the farmland excess area, can also reduce and cover black line.
Though the utility model discloses as above with preferred embodiment; right its is not in order to limit the utility model; any those skilled in the art; in not breaking away from spirit and scope of the present utility model; when doing a little modification and perfect, therefore protection domain of the present utility model is worked as with being as the criterion that claims were defined.
Claims (6)
1, a kind of liquid crystal display device of multi-domain vertical orientation mode comprises:
One color membrane substrates, its surface is formed with common electrode;
Array basal plate comprises a plurality of subpixel area, is provided with pixel electrode in each sub-pixel;
Liquid crystal layer is filled between described color membrane substrates and the array base palte;
Wherein, be formed with the farmland modulating device on described common electrode or the pixel electrode, liquid crystal is divided into a plurality of farmland groups by described farmland modulating device in each sub-pixel, it is characterized in that, described farmland modulating device is provided with the extension, described extension at least with described a plurality of farmland groups in one stacked, described a plurality of farmland groups have essentially identical area after stacked.
2, a kind of liquid crystal display device of multi-domain vertical orientation mode comprises:
One color membrane substrates, its surface is formed with light shield layer and common electrode;
Array basal plate comprises a plurality of subpixel area, is provided with pixel electrode in each sub-pixel;
Liquid crystal layer is filled between described color membrane substrates and the array base palte;
Wherein, be formed with the farmland modulating device on described common electrode or the pixel electrode, liquid crystal is divided into a plurality of farmland groups by described farmland modulating device in each sub-pixel, it is characterized in that, described light shield layer is provided with the extension, described extension at least with described a plurality of farmland groups in one stacked, described a plurality of farmland groups have essentially identical area after stacked.
3, a kind of liquid crystal display device of multi-domain vertical orientation mode comprises:
One color membrane substrates, its surface is formed with common electrode;
Array basal plate comprises a plurality of subpixel area, is provided with pixel electrode in each sub-pixel;
Liquid crystal layer is filled between described color membrane substrates and the array base palte;
Wherein, be formed with the farmland modulating device on described common electrode or the pixel electrode, liquid crystal is divided into a plurality of farmland groups by described farmland modulating device in each sub-pixel, it is characterized in that, the pixel electrode of described a plurality of farmlands group's correspondence has at least one to be fallen by partial etching, and described a plurality of farmland groups have essentially identical area after the pixel electrode part etching.
According to the liquid crystal display device of claim 1,2 or 3 described multi-domain vertical orientation modes, it is characterized in that 4, described farmland modulating device is projection or slit.
5, the liquid crystal display device of multi-domain vertical orientation mode according to claim 1 and 2 is characterized in that, modulating device extension, described farmland is positioned at place, sub-pixel edge.
6, the liquid crystal display device of multi-domain vertical orientation mode according to claim 3 is characterized in that, the described pixel electrode that is fallen by partial etching is positioned at place, sub-pixel edge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201517693U CN201237687Y (en) | 2008-08-11 | 2008-08-11 | LCD device in poly-domain vertical orientation mode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201517693U CN201237687Y (en) | 2008-08-11 | 2008-08-11 | LCD device in poly-domain vertical orientation mode |
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| Publication Number | Publication Date |
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| CN201237687Y true CN201237687Y (en) | 2009-05-13 |
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| CNU2008201517693U Expired - Fee Related CN201237687Y (en) | 2008-08-11 | 2008-08-11 | LCD device in poly-domain vertical orientation mode |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101339337B (en) * | 2008-08-11 | 2010-06-02 | 上海广电光电子有限公司 | Multi-domain vertical tropism mode LCD device |
-
2008
- 2008-08-11 CN CNU2008201517693U patent/CN201237687Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101339337B (en) * | 2008-08-11 | 2010-06-02 | 上海广电光电子有限公司 | Multi-domain vertical tropism mode LCD device |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090513 Termination date: 20100811 |