CN100514158C - flat panel display device - Google Patents
flat panel display device Download PDFInfo
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- CN100514158C CN100514158C CNB200610108591XA CN200610108591A CN100514158C CN 100514158 C CN100514158 C CN 100514158C CN B200610108591X A CNB200610108591X A CN B200610108591XA CN 200610108591 A CN200610108591 A CN 200610108591A CN 100514158 C CN100514158 C CN 100514158C
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- 239000000758 substrate Substances 0.000 claims abstract description 51
- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 45
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 230000008569 process Effects 0.000 claims description 4
- 239000011347 resin Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 238000005530 etching Methods 0.000 claims 2
- 230000003287 optical effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 15
- 239000007787 solid Substances 0.000 description 4
- 230000000007 visual effect Effects 0.000 description 4
- 238000005094 computer simulation Methods 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
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Abstract
A flat display device includes: a first substrate; a second substrate disposed opposite to the first substrate; a plurality of first alignment structures disposed on the first substrate and extending in a first direction; the second alignment structures are arranged on the second substrate and face the first alignment structures, the second alignment structures extend towards a second direction, an included angle is formed between the first direction and the second direction, the included angle is larger than zero degree, and a liquid crystal layer is filled between the first substrate and the second substrate.
Description
Technical field
The relevant a kind of liquid crystal indicator of the present invention, and particularly a kind of multi-area vertical alignment type liquid crystal display device (Multi-domain Vertical Aligned Liquid Crystal Display, MVA-LCD).
Background technology
Advantages such as LCD has that high image quality, volume are little, in light weight, low voltage drive, low consumpting power and applied range.Therefore, be widely used in various electronic product.And along with the fast development in large scale flat-panel screens market, have LCD light, thin, short, little characteristic, playing the part of considerable role especially.
See also Fig. 1, Fig. 1 is existing multi-area vertical alignment type liquid crystal display device pixel vertical view.On the figure by in the formed pel array 172 that contains a plurality of pixel regions 170 of prior art, have a plurality of strip patterns that a plurality of first alignment structures 150 and a plurality of second alignment structure 160 are formed, when seeing it by the projection plane of liquid crystal indicator, any two adjacent first alignment structures 150 and two adjacent edges of second alignment structure 160 are to adopt equidistant design.
See also Fig. 2 A.Fig. 2 A is the multi-area vertical alignment type liquid crystal display device of prior art synoptic diagram along A-A line section when not applying voltage.As shown in the figure, existing multi-area vertical alignment type liquid crystal display device, comprise one first substrate 110, its inside surface is provided with one first electrode 130 as pixel electrode (pixelelectrode), one second substrate 120, its inside surface is provided with one second electrode 140 as common electrode (common electrode), and both are oppositely arranged first substrate 110 and second substrate 120 with a constant spacing.Be filled with layer of liquid crystal molecule 122 between first electrode 130 and second electrode 140 with negative value dielectric constant anisotropy liquid crystal molecule 112.Be provided with one on the surface of first electrode 130 and second electrode 140 respectively and be regularly arranged and alignment structure that spacing distance is roughly the same: first alignment structure 150 and second alignment structure 160, above-mentioned alignment structure is formed through optics development etch process by the organic photo resin.When not applying voltage between first electrode 130 and second electrode 140, liquid crystal molecule 112 in the layer of liquid crystal molecule 122 all towards with the arrangement of standing of first electrode 130 and second electrode, 140 approximate vertical directions, only be inclination in the surface of first alignment structure 150 and second alignment structure 160.
See also Fig. 2 B, Fig. 2 B is the multi-area vertical alignment type liquid crystal display device of prior art synoptic diagram along A-A line section when applying a voltage.When applying a voltage between first electrode 130 and second electrode 140, liquid crystal molecule 112 is arranged and rotation towards different specific directions by the traction of field of electric force, with the visual angle of effective increase multi-area vertical alignment type liquid crystal display device.First alignment structure 150 of this regular spacing distance and second alignment structure 160 make the liquid crystal molecule (not showing on the figure) in the existing multi-area vertical alignment type liquid crystal display device, the tilting towards four direction of systematicness.See also Fig. 3, it is for applying the computer analoging figure of the line of electric force degreeof tortuosity of voltage between existing first electrode 130 and second electrode 140.By the result shown in the figure as can be known, between first electrode 130 and second electrode 140, apply under the voltage, can make a variation because of the field of electric force line of electric force degreeof tortuosity form between the electrode that distributes that influences of first alignment structure 150 and second alignment structure 160.
Though existing multi-area vertical alignment type liquid crystal display device has the visual angle of broad, yet because first alignment structure 150 and second alignment structure 160 of its employing rule spacing distance design as shown in fig. 1, therefore see also Fig. 4, when between two electrodes, applying a voltage, make liquid crystal molecule 112 the tilting of systematicness on the plane, that is be an equal value towards the plane included angle 190 that four different directions are toppled over towards four direction.And to reverse orientation angle 191 also be an equal value in the space of the perpendicular directional line 100 of liquid crystal molecule 112 and first alignment structure 150 and second alignment structure 160.Therefore make and exist the problem that colour cast and gamma curve are offset for a long time by multi-area vertically aligned liquid crystal display device always.
Summary of the invention
One of purpose of the present invention is to provide a kind of flat display apparatus, be formed with the alignment structure of the irregular distribution of spacing distance respectively at first electrode and second electrode surface, when therefore applying voltage, the degreeof tortuosity of line of electric force variation between the two, make liquid crystal molecule form multiple domain, be the arrangement mode of different angle separately at projection plane and solid space.
Another object of the present invention is to provide a kind of flat display apparatus, it is in each pixel region, make liquid crystal molecule form multiregional vertical align and arrange, have the broad visual angle and can avoid colour cast that LCD produced and the problem of gamma curve skew when presenting video picture.
In order to achieve the above object, one embodiment of the invention propose a kind of flat display apparatus, comprise one first substrate, one second substrate that is oppositely arranged with first substrate, a plurality of first alignment structures are arranged on first substrate and toward a first direction and extend, a plurality of second alignment structures are arranged on second substrate and in the face of a plurality of first alignment structures and toward a second direction and extend, wherein first direction and second direction have an angle, and one liquid crystal layer be filled between first substrate and second substrate, first alignment structure that wherein any first alignment structure is adjacent and the spacing of second alignment structure are unequal, and the spacing of any two second alignment structures also is unequal design, make liquid crystal molecule form multiple domain to reach at solid space, the arrangement mode that is different angle separately, the purpose of avoiding the skew of colour cast and gamma curve to take place.
Description of drawings
Fig. 1 is the projection plane synoptic diagram of existing multi-area vertical alignment type liquid crystal display device.
Fig. 2 A is that the multi-area vertical alignment type liquid crystal display device of prior art is not when applying voltage, along the synoptic diagram of A-A line section.
Fig. 2 B is that the multi-area vertical alignment type liquid crystal display device of prior art is when applying voltage, along the synoptic diagram of A-A line section.
Fig. 3 is the computer simulation line of electric force distortion synoptic diagram of existing multi-area vertical alignment type liquid crystal display device.
Liquid Crystal Molecules Alignment synoptic diagram when Fig. 4 applies voltage for existing multi-area vertical alignment type liquid crystal display device.
Fig. 5 A is the schematic top plan view of the flat display apparatus that notion is implemented according to the present invention.
Fig. 5 B is the flat display apparatus that notion is implemented according to the present invention, and driven turns to synoptic diagram in the liquid crystal molecule plane at the beginning.
Fig. 5 C is the flat display apparatus that notion is implemented according to the present invention, and the liquid crystal molecule plane turned to synoptic diagram after driven was finished.
Fig. 6 is the synoptic diagram along B-B line section of the flat display apparatus that notion is implemented according to the present invention.
Fig. 7 is the synoptic diagram along B-B line section of the flat display apparatus that notion is implemented according to the present invention.
Fig. 8 is the computer simulation line of electric force distortion synoptic diagram of the liquid crystal indicator that notion is implemented according to the present invention.
Embodiment
Be notion of the present invention to be described below by several different embodiment.
See also Fig. 5 A, it is the pixel region vertical view of the flat display apparatus implemented according to the present invention.Flat display apparatus as shown in the figure comprises, one first substrate (scheming not shown), and one second substrate 20 and first substrate are oppositely arranged.Secondly, a plurality of first alignment structures 50 are arranged on first substrate and toward a first direction and extend.A plurality of second alignment structures 60 are arranged on second substrate 20 and face a plurality of first alignment structures 50.Second alignment structure 60 is to extend toward a second direction, and wherein first direction and second direction have an angle, and this angle is greater than zero degree, and a liquid crystal layer (scheming not shown) is filled between first substrate and second substrate 20.A plurality of pixel regions 70 form a pel array 72, are to be formed by a plurality of sweep traces 701 and 702 definition of a plurality of signal wire.In pel array 72, first alignment structure 50 that any first alignment structure 50 is adjacent and the spacing of second alignment structure 60 are unequal, and the spacing of any two second alignment structures 60 also is unequal design, and promptly first alignment structure 50 and second alignment structure 60 are to be an irregular distribution.In other words, first alignment structure 50 and second alignment structure 60 and non-parallel.Moreover, for arbitrary first alignment structure 50 (or arbitrary second alignment structure 60), the spacing of its second alignment structure 60 adjacent (or first alignment structure 50) and unequal with both sides, and the spacing when extending to another pixel region 70 is also unequal.The spacing distance of promptly wantonly two adjacent first alignment structures 50 and second alignment structure, 60 adjacent edges is the design of on-fixed distance.Projection plane in pel array 72 is seen it, have wantonly two the formed a plurality of V-type patterns by a plurality of first alignment structures 50 and second alignment structure 60, the spacing distance of the peripheral length of its a plurality of V-type patterns and wantonly 2 abutting end points thereof is the design of on-fixed distance.
See also Fig. 5 B and Fig. 5 C, it is the part synoptic diagram of the C district projection plane among pel array Fig. 5 A of the flat display apparatus implemented according to the present invention.Shown in Fig. 5 B, under projection plane, adjacent two are first alignment structure 50 of not parallel distribution and a plurality of liquid crystal molecules 12 between second alignment structure 60, be subjected to a driven, beginning is by the position of script planar alignment symmetry, towards the line of electric force resultant direction, i.e. arrow 80 directions among the figure, traction and turning to.Consult Fig. 5 B, after driven action is finished, arrange the liquid crystal molecule 12 of symmetry on the projection plane originally, the resultant direction influence of arrow 80 indications and toppling in the figure towards different directions.So can improve in the flat display apparatus, when going to see flat display apparatus from different perspectives, the color offset phenomenon that the color of imaging changes along with angle.
See also Fig. 6, its be among a flat-panel screens of implementing according to notion of the present invention, Fig. 5 A along the synoptic diagram of B-B line section.It has one first substrate 10 and one second substrate 20, and both are for being oppositely arranged, and a determining deviation at interval, is filled with liquid crystal molecule 12 therebetween.The inside surface of first substrate 10 comprises one by formed first electrode 30 and a plurality of first alignment structures 50 of indium tin oxide (ITO); The inside surface of second substrate 20 comprises one second electrode 40 and a plurality of second alignment structure 60.First alignment structure 50 and second alignment structure 60 are a thrust (protrusion), for the organic photo resin forms through optics development etch process, and non-parallel arrangement between arbitrary first alignment structure 50 and adjacent first alignment structure 50.In other words, for arbitrary first alignment structure 50, second alignment structure 60 that is positioned at its both sides relative position so far distance of the first corresponding alignment structure 50 is unequal.In like manner, for arbitrary second alignment structure 60, first alignment structure 50 that is positioned at its both sides relative position is unequal with the distance of the second corresponding alignment structure 60.So, promptly forming as shown in FIG. liquid crystal molecule 12, to reverse degree different and form the type of array of multiple domain (multi-domain).
See also Fig. 7, it is another flat-panel screens of implementing according to notion of the present invention synoptic diagram along B-B line section.As shown in the figure, first alignment structure 52 and second alignment structure 62 are except utilizing projection (protrusion), also can utilize first electrode 32 on first substrate 10 and second electrode 42 on second substrate 20 with existing etch process and material, as indium tin oxide etc., hollow out becomes the design of groove (slit) to reach the function of orientation.Therefore be understandable that first alignment structure 50,52 and second alignment structure 60,62 can utilize the projection or the groove of different spacing respectively, or its both any matched combined all can reach above-mentioned functions.
See also Fig. 8, it applies the computer analoging figure of the line of electric force degreeof tortuosity of voltage between common electrode and pixel electrode for the liquid crystal indicator of implementing according to notion of the present invention.By the result shown in the figure as can be known, applying same electrical between common electrode and pixel electrode depresses, alignment structure as shown in Figure 8 with a plurality of on-fixed spacing distances arrangements, the line of electric force distortion degree of variation between the common electrode that causes and the pixel electrode, greater than as shown in Figure 3 have a formed line of electric force degreeof tortuosity of the regularly arranged alignment structure of a plurality of spacing distances.Result as shown in FIG. as can be known, because of the arrangement of the different formation multiple domain of the reverse degree of liquid crystal molecule in solid space.Make in same pixel to have liquid crystal molecule towards different windup-degrees.So can improve the direct gradually problem of the gamma curve skew (Gamma Shift) of layer effect of display that influences.
According to above-mentioned, the invention is characterized in provides a kind of flat display apparatus to comprise, and one first substrate, one second substrate are to be oppositely arranged with first substrate; A plurality of first alignment structures, it is arranged on first substrate, and a plurality of first alignment structures are to extend toward a first direction; A plurality of second alignment structures, it is arranged on second substrate, and in the face of a plurality of first alignment structures, wherein second alignment structure is to extend toward a second direction, and first direction and second direction have an angle, and this angle is greater than zero degree; And a liquid crystal layer, it is filled between first substrate and second substrate.In this flat display apparatus, in its vertical view by the formed pel array of prior art, first alignment structure that any first alignment structure is adjacent and the spacing of second alignment structure are unequal, and the spacing of any two second alignment structures also is unequal, make liquid crystal molecule form multiple domain, be the arrangement mode of different angle separately, can increase the visual angle of display panel at solid space, avoid the generation of colour cast and an ancient woman's ornament Maqu line skew, to promote the imaging quality of display panels.
Above-described embodiment only is explanation technological thought of the present invention and characteristics, its purpose makes person skilled in the art scholar can understand content of the present invention and is implementing according to this, when not limiting claim of the present invention with it, be every variation that is equal to or modification of doing according to disclosed spirit, must be encompassed in the claim of the present invention.
Claims (17)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200610108591XA CN100514158C (en) | 2006-07-20 | 2006-07-20 | flat panel display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200610108591XA CN100514158C (en) | 2006-07-20 | 2006-07-20 | flat panel display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101109872A CN101109872A (en) | 2008-01-23 |
| CN100514158C true CN100514158C (en) | 2009-07-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB200610108591XA Expired - Fee Related CN100514158C (en) | 2006-07-20 | 2006-07-20 | flat panel display device |
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| Country | Link |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107463046A (en) * | 2017-09-19 | 2017-12-12 | 惠科股份有限公司 | Liquid crystal display device having a plurality of pixel electrodes |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW594133B (en) * | 2003-12-10 | 2004-06-21 | Au Optronics Corp | Multi-domain vertical alignment LCD panel |
| CN1510489A (en) * | 2002-12-21 | 2004-07-07 | 鸿富锦精密工业（深圳）有限公司 | Liquid-crystal displaying device with wide visual angle |
| CN1550832A (en) * | 1997-06-12 | 2004-12-01 | ��ʿͨ��ʾ������ʽ���� | Liquid crystal display device |
| CN2735378Y (en) * | 2004-09-06 | 2005-10-19 | 鸿富锦精密工业（深圳）有限公司 | Multi-domain vertical alignment mode LCD |
| CN1716054A (en) * | 2004-06-30 | 2006-01-04 | Lg.菲利浦Lcd株式会社 | Liquid crystal display device and method of fabricating the same |
-
2006
- 2006-07-20 CN CNB200610108591XA patent/CN100514158C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1550832A (en) * | 1997-06-12 | 2004-12-01 | ��ʿͨ��ʾ������ʽ���� | Liquid crystal display device |
| CN1510489A (en) * | 2002-12-21 | 2004-07-07 | 鸿富锦精密工业（深圳）有限公司 | Liquid-crystal displaying device with wide visual angle |
| TW594133B (en) * | 2003-12-10 | 2004-06-21 | Au Optronics Corp | Multi-domain vertical alignment LCD panel |
| CN1716054A (en) * | 2004-06-30 | 2006-01-04 | Lg.菲利浦Lcd株式会社 | Liquid crystal display device and method of fabricating the same |
| CN2735378Y (en) * | 2004-09-06 | 2005-10-19 | 鸿富锦精密工业（深圳）有限公司 | Multi-domain vertical alignment mode LCD |
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| Publication number | Publication date |
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| CN101109872A (en) | 2008-01-23 |
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