CN102540540A - Wide viewing angle liquid crystal display capable of realizing multi-domain display - Google Patents
Wide viewing angle liquid crystal display capable of realizing multi-domain display Download PDFInfo
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- CN102540540A CN102540540A CN2012100506353A CN201210050635A CN102540540A CN 102540540 A CN102540540 A CN 102540540A CN 2012100506353 A CN2012100506353 A CN 2012100506353A CN 201210050635 A CN201210050635 A CN 201210050635A CN 102540540 A CN102540540 A CN 102540540A
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Abstract
The invention relates to a liquid crystal display technology and particularly discloses a wide viewing angle liquid crystal display capable of realizing multi-domain display. The wide viewing angle liquid crystal display capable of realizing the multi-domain display comprises a plurality of subpixels, wherein the plurality of subpixels are connected to a corresponding common electrode, a corresponding pixel electrode, a corresponding source electrode and a corresponding grid electrode respectively; and a multidirectional planar electric field can be formed between the common electrode and the pixel electrode, so that the electric field in a corresponding subpixel is divided into multiple azimuths and is used for realizing multi-domain liquid crystal molecular arrangement. Therefore, gray-scale reversal phenomena at certain specific angles can be improved, the problem of color offset can be effectively improved, the wide viewing angle effect can be more uniform and more stable, and the quality of a displayed picture can be further improved.
Description
Technical field
The present invention relates to lcd technology, relate to a kind of wide-angle liquid crystal display of realizing that multidomain shows specifically.
Background technology
Thin film transistor (TFT) TFT (Thin Film Transistor) LCD has increasing use in living in modern times: like mobile phone display screen, and Note Book display screen, MP3, MP4 display screen, GPS display screen, LCD TV display screen or the like.Fig. 1 a, Fig. 1 b are typical liquid crystal electrode lay-out synoptic diagram; Glass substrate 4 is provided with amorphous silicon layer 1, canopy utmost point layer 2, source layer 3 and goes up lower protective layer 6; The public electrode 7 of l ' places on the protective seam 6 at interval, and pixel electrode 5 places between the lower protective layer 6.More particulars about LCD basic structure and principle of work thereof please refer to relevant document, do not launch explanation.
At present; People are also increasingly high to the LCD performance demands, not only on color representation, outstanding requirement will be arranged, and more pursuit has also been arranged on contrast, visible angle; Promptly require clearly to see display image from multi-angle; Particularly Vehicle-carrying type steel shows on the product, high-contrast, and the liquid crystal display of wide viewing angle is widely used especially.The wide viewing angle product becomes the inevitable requirement in market under such background, become a kind of popular liquid crystal display mode at present.In order to realize that wide viewing angle shows, the general mode that increases compensate film that adopts realizes, has the cost problem of higher.Certainly; Also can improve the visual angle through liquid crystal molecule plane switching way; It utilizes space thickness, frictional strength and effectively utilizes the laterally change of driving voltage E between public electrode and the pixel electrode, and letting liquid crystal molecule do the maximum plane anglec of rotation increases the visual angle.
Existing various lcd products generally adopt one-domain structure, its common pattern of electrodes similar.Specifically see also Fig. 2 A～Fig. 2 F example; The plane electric fields direction that public electrode wherein and pixel electrode form is single; Liquid crystal molecule is arranged and is had only the single domain pattern, watches display frame to have the phenomenon of colour cast in different angles, thereby can not satisfy market demands fully.
Summary of the invention
In view of this; The objective of the invention is to overcome the deficiency of prior art, a kind of wide-angle liquid crystal display of realizing that multidomain shows is provided, the GTG that can improve some special angle reverses phenomenon; Thereby effectively improve the problem of colour cast; Also can let effect of wide angle more even, more stable, further promote the demonstration image quality.
For solving above technical matters; Technical scheme provided by the invention is: a kind of wide-angle liquid crystal display of realizing that multidomain shows; Comprise a plurality of sub-pixels, each sub-pixel is connected to corresponding public electrode, pixel electrode, source electrode and grid respectively, can form multidirectional plane electric fields between said public electrode and the said pixel electrode; Make the electric field in the corresponding sub-pixel be divided into a plurality of orientation, arrange in order to the liquid crystal molecule of realizing multidomain.
More excellent ground, said public electrode are drawn the public electrode that the hole goes out a plurality of broach shapes and are drawn the hole line, and constituting integral body is the public electrode of comb shape.
It is crooked respectively that the hole line is drawn on more excellent ground, each public electrode of said public electrode, makes and form multidirectional plane electric fields between said public electrode and the said pixel electrode.
More excellent ground, each public electrode of said public electrode is drawn the hole line and is become broken line shape respectively, makes and forms multidirectional plane electric fields between said public electrode and the said pixel electrode.
More excellent ground, each public electrode of said public electrode are drawn the hole line and are become approximate " Z " shape.
More excellent ground, each public electrode of said public electrode are drawn the hole line and are become approximate " V " shape.
More excellent ground, each public electrode of said public electrode are drawn the hole line and are become approximate " W " shape.
More excellent ground, the source electrode line of said source electrode becomes bending, in order to utilize pixel edge place electric field, reduces the influence that liquid crystal upset usable floor area receives said public electrode.
More excellent ground, the source electrode of said source electrode is identical with the angle of bend that each public electrode of said public electrode is drawn the hole line.
More excellent ground, each sub-pixel becomes multiple lines and multiple rows to arrange, and constitutes picture element matrix.
Compared with prior art; The present invention realizes in the preferred embodiment of the wide-angle liquid crystal display that multidomain shows; Changed the graphic structure of comb shape public electrode, common pattern of electrodes has been made into approximate letter " Z " shape or other broken line shape, made the plane electric fields that forms multi-angle between public electrode and the pixel electrode thus; Electric field in the subpixels is divided into a plurality of different orientation the most at last, thereby the liquid crystal molecule that obtains multidomain is arranged.Like this, the GTG that the present invention just can improve some special angle reverses phenomenon, effectively improves the problem of colour cast, also can let effect of wide angle more evenly, more stable, further promote and show image quality.
Description of drawings
Figure 1A is the electrode lay-out figure one of LCD;
Figure 1B is the electrode lay-out figure two of LCD;
Fig. 2 A is the synoptic diagram of single pixel in the one-domain structure wide-angle liquid crystal display;
Fig. 2 B is a gate patterns in the one-domain structure wide-angle liquid crystal display
Fig. 2 C is a source electrode figure in the one-domain structure wide-angle liquid crystal display;
Fig. 2 D is a pixel electrode figure in the one-domain structure wide-angle liquid crystal display;
Fig. 2 E is a common pattern of electrodes in the one-domain structure wide-angle liquid crystal display;
Fig. 2 F respectively schemes synoptic diagram behind the ply in the one-domain structure wide-angle liquid crystal display;
Fig. 3 A realizes the synoptic diagram of single pixel among the wide-angle liquid crystal display embodiment one that multidomain shows for the present invention;
Fig. 3 B realizes gate patterns among the wide-angle liquid crystal display embodiment one that multidomain shows for the present invention;
Fig. 3 C realizes source electrode figure among the wide-angle liquid crystal display embodiment one that multidomain shows for the present invention;
Fig. 3 D realizes pixel electrode figure among the wide-angle liquid crystal display embodiment one that multidomain shows for the present invention;
Fig. 3 E realizes common pattern of electrodes among the wide-angle liquid crystal display embodiment one that multidomain shows for the present invention;
Fig. 3 F realizes respectively scheming among the wide-angle liquid crystal display embodiment one that multidomain shows the synoptic diagram behind the ply for the present invention;
Fig. 3 G realizes the synoptic diagram of pel array among the wide-angle liquid crystal display embodiment one that multidomain shows for the present invention;
Fig. 4 A realizes the synoptic diagram of single pixel among the wide-angle liquid crystal display embodiment two that multidomain shows for the present invention;
Fig. 4 B realizes gate patterns among the wide-angle liquid crystal display embodiment two that multidomain shows for the present invention;
Fig. 4 C realizes source electrode figure among the wide-angle liquid crystal display embodiment two that multidomain shows for the present invention;
Fig. 4 D realizes pixel electrode figure among the wide-angle liquid crystal display embodiment two that multidomain shows for the present invention;
Fig. 4 E realizes common pattern of electrodes among the wide-angle liquid crystal display embodiment two that multidomain shows for the present invention;
Fig. 4 F realizes respectively scheming among the wide-angle liquid crystal display embodiment two that multidomain shows the synoptic diagram behind the ply for the present invention;
Fig. 4 G realizes the synoptic diagram of pel array among the wide-angle liquid crystal display embodiment two that multidomain shows for the present invention.
Embodiment
The basic design of the preferred embodiment of the present invention is; Change the graphic structure of comb shape public electrode, common pattern of electrodes is made into approximate letter " Z " shape or other broken line shape, make public electrode and pixel electrode form the plane electric fields of multi-angle; So that the electric field in the subpixels is divided into a plurality of different orientation; Thereby the liquid crystal molecule that obtains multidomain is arranged, and the GTG that finally improves some special angle reverses phenomenon, effectively improves the problem of colour cast; Let effect of wide angle more evenly, more stable, show image quality with further lifting.
In order to make those skilled in the art understand technical scheme of the present invention better, the present invention is done further detailed description below in conjunction with accompanying drawing and specific embodiment.
Embodiment one
Referring to Fig. 3 A～Fig. 3 G, expression the present invention realizes that the electrode structure of the wide-angle liquid crystal display embodiment one that multidomain shows arranges.Among this embodiment: Fig. 3 A is the synoptic diagram of single pixel; Fig. 3 B representes canopy utmost point figure; Fig. 3 C is the source electrode figure; Fig. 3 D is the pixel electrode figure; Fig. 3 E is a common pattern of electrodes; Fig. 3 F for each figure ply after synoptic diagram; Fig. 3 G is the synoptic diagram of pel array.
Among this embodiment, public electrode 7 is drawn the public electrode that the hole goes out a plurality of broach shapes and is drawn the hole line, and constituting integral body thus is the public electrode 7 of comb shape.The figure of this public electrode and " Z " similar shape, this public electrode 7 also can be broken line forms such as " V ", " W " shape certainly, or other curve form.Make the public electrode 7 of comb shape form the angle of multi-angle thus, thereby can obtain the plane electric fields of a plurality of different angles, thereby arranging of liquid crystal molecule is divided into more farmland with pixel electrode 5.
In the present embodiment; Through making public electrode 7 and pixel electrode 5 form the plane electric fields of multi-angle, so that the electric field in the subpixels P is divided into a plurality of different orientation, thereby the liquid crystal molecule that obtains multidomain is arranged; The GTG that finally improves some special angle reverses phenomenon; Effectively improve the problem of colour cast, let effect of wide angle more evenly, more stable, show image quality with further lifting.
As difference; Shown in Fig. 2 A～Fig. 2 F in the common pattern of electrodes structure of one-domain structure; Public electrode 7 is single with the plane electric fields direction that pixel electrode 5 forms; Liquid crystal molecule is arranged and is had only the single domain pattern, watches display frame to have the phenomenon of colour cast in different angles, can not satisfy user's requirement well.
Reverse phenomenon because present embodiment can improve the GTG of some special angle, effectively improve the problem of colour cast, also can let effect of wide angle more evenly, more stable, this has further promoted the demonstration image quality widely.
The present invention also can further improve, and lifts an example now and describes.
Embodiment two
Referring to Fig. 4 A～Fig. 4 G, expression the present invention realizes that the electrode structure of the wide-angle liquid crystal display embodiment two that multidomain shows arranges.Among this embodiment: Fig. 4 A is the synoptic diagram of single pixel; Fig. 4 B representes canopy utmost point figure; Fig. 4 C is the source electrode figure; Fig. 4 D is the pixel electrode figure; Fig. 4 E is a common pattern of electrodes; Fig. 4 F for each figure ply after synoptic diagram; Fig. 4 G is the synoptic diagram of pel array.
Among this embodiment, common pattern of electrodes also is " Z " shape or similar shape.Make public electrode 7 and the pixel electrode 5 of comb shape form the angle of multi-angles, obtaining the plane electric fields of a plurality of different angles, thereby arranging of liquid crystal molecule is divided into more farmland.Further; Pixel wherein (Pixel) P adopts the source electrode line line and the public electrode of source electrode (Source) 3 to draw the same angle of bend of hole line graph; Can more efficient use pixel P edge electric field; Make the usable floor area of liquid crystal upset not receive public electrode 7 figures crooked and influence too greatly, promptly guaranteed the high aperture of pixel P indirectly.
This shows; Embodiment one is made into designs such as approximate " Z " shape through the comb shape public electrode; Make public electrode and pixel electrode form the plane electric fields of different directions, the liquid crystal one's share of expenses for a joint undertaking is clocklike overturn to different directions under the electric field action of different directions, forms the distribution of multidomain.Through arranging of liquid crystal molecule is divided into more farmland; Better compensation has been carried out at bigger visual angle; Reduced the fluctuation of transmittance under the angle of inclination; Therefore effectively improved the problem of colour cast, made to watch from different perspectives to show uniform and stable picture, made to show that image quality shows more outstandingly.Further, embodiment two also takes into account the design of adopting Source line and public electrode to draw the same angle of bend of hole line graph on the advantage basis that keeps the foregoing description one; It is crooked and influence the utilization of pixel electric field that this design can reduce common pattern of electrodes; Space that can the more efficient use pixel guarantees the utilization factor of electric field, thereby has guaranteed the usable floor area of liquid crystal upset; Promptly guaranteed high aperture indirectly, made demonstration more excellent.More than this combination of 2, then further make to show that image quality has perfect performance.
Among the above embodiment, improve the visual angle through liquid crystal molecule plane switching way, the change that utilizes space thickness, frictional strength and effectively utilize lateral voltage to drive, letting liquid crystal molecule do the maximum plane anglec of rotation increases the visual angle.The benefit of this mode is in the making of commodity, to need not extra increase compensate film, shows that visually contrast is also very high, in the lifting at visual angle, can reach wide-visual angle effect.
Only be preferred implementation of the present invention below, should be pointed out that above-mentioned preferred implementation should not be regarded as limitation of the present invention, protection scope of the present invention should be as the criterion with claim institute restricted portion.For those skilled in the art, do not breaking away from the spirit and scope of the present invention, can also make some improvement and retouching, these improvement and retouching also should be regarded as protection scope of the present invention.
Claims (10)
1. wide-angle liquid crystal display of realizing that multidomain shows; Comprise a plurality of sub-pixels; Each sub-pixel is connected to corresponding public electrode, pixel electrode, source electrode and the canopy utmost point respectively, it is characterized in that, can form multidirectional plane electric fields between said public electrode and the said pixel electrode; Make the electric field in the corresponding sub-pixel be divided into a plurality of orientation, arrange in order to the liquid crystal molecule of realizing multidomain.
2. the wide-angle liquid crystal display that realization multidomain as claimed in claim 1 shows is characterized in that, said public electrode is drawn the public electrode that the hole goes out a plurality of broach shapes and drawn the hole line, and constituting integral body is the public electrode of comb shape.
3. the wide-angle liquid crystal display that realization multidomain as claimed in claim 2 shows is characterized in that, it is crooked respectively that each public electrode of said public electrode is drawn the hole line, makes and forms multidirectional plane electric fields between said public electrode and the said pixel electrode.
4. the wide-angle liquid crystal display that realization multidomain as claimed in claim 3 shows is characterized in that each public electrode of said public electrode is drawn the hole line and become broken line shape respectively, makes and forms multidirectional plane electric fields between said public electrode and the said pixel electrode.
5. the wide-angle liquid crystal display that realization multidomain as claimed in claim 4 shows is characterized in that, each public electrode of said public electrode is drawn the hole line and become approximate " Z " shape.
6. the wide-angle liquid crystal display that realization multidomain as claimed in claim 4 shows is characterized in that, each public electrode of said public electrode is drawn the hole line and become approximate " V " shape.
7. the wide-angle liquid crystal display that realization multidomain as claimed in claim 4 shows is characterized in that, each public electrode of said public electrode is drawn the hole line and become approximate " W " shape.
8. the wide-angle liquid crystal display that realization multidomain as claimed in claim 3 shows is characterized in that the source electrode line of said source electrode becomes bending, in order to utilize pixel edge place electric field, reduces the influence that liquid crystal upset usable floor area receives said public electrode.
9. the wide-angle liquid crystal display that realization multidomain as claimed in claim 8 shows is characterized in that the source electrode of said source electrode is identical with the angle of bend that each public electrode of said public electrode is drawn the hole line.
10. the wide-angle liquid crystal display that shows like each described realization multidomain of claim 1～9 is characterized in that each sub-pixel becomes multiple lines and multiple rows to arrange, and constitutes picture element matrix.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100506353A CN102540540A (en) | 2012-02-29 | 2012-02-29 | Wide viewing angle liquid crystal display capable of realizing multi-domain display |
| PCT/CN2013/070041 WO2013102439A1 (en) | 2012-01-05 | 2013-01-05 | Wide viewing angle liquid crystal display realizing multi-domain display |
| US14/370,870 US20150002776A1 (en) | 2012-01-05 | 2013-01-05 | Wide viewing angle liquid crystal display realizing multi-domain display |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012100506353A CN102540540A (en) | 2012-02-29 | 2012-02-29 | Wide viewing angle liquid crystal display capable of realizing multi-domain display |
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| CN102540540A true CN102540540A (en) | 2012-07-04 |
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| WO2013102439A1 (en) * | 2012-01-05 | 2013-07-11 | 信利半导体有限公司 | Wide viewing angle liquid crystal display realizing multi-domain display |
| CN105319791A (en) * | 2014-05-30 | 2016-02-10 | 株式会社日本显示器 | Liquid crystal display device |
| US10247987B2 (en) | 2016-01-27 | 2019-04-02 | Boe Technology Group Co., Ltd. | Pixel unit, array substrate and manufacturing method thereof |
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| US6459465B1 (en) * | 2000-12-15 | 2002-10-01 | Lg. Philips Lcd Co., Ltd. | Liquid crystal panel for IPS mode liquid crystal display device and method for fabricating the same |
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| WO2013102439A1 (en) * | 2012-01-05 | 2013-07-11 | 信利半导体有限公司 | Wide viewing angle liquid crystal display realizing multi-domain display |
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| US10247987B2 (en) | 2016-01-27 | 2019-04-02 | Boe Technology Group Co., Ltd. | Pixel unit, array substrate and manufacturing method thereof |
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Application publication date: 20120704 |