CN100568073C - Display panels - Google Patents
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- CN100568073C CN100568073C CNB2007100890840A CN200710089084A CN100568073C CN 100568073 C CN100568073 C CN 100568073C CN B2007100890840 A CNB2007100890840 A CN B2007100890840A CN 200710089084 A CN200710089084 A CN 200710089084A CN 100568073 C CN100568073 C CN 100568073C
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Abstract
A kind of display panels, it comprises active elements array substrates, subtend substrate and liquid crystal layer.Active elements array substrates comprises a plurality of pixel cells, and each pixel cell has reflector space and penetration region.The subtend substrate is disposed at the top of active elements array substrates, the subtend substrate has shared electrode, a plurality of first orientation projection and a plurality of second orientation projectioies corresponding to penetration region corresponding to reflector space, and wherein first orientation projection and the second orientation projection are between subtend substrate and active elements array substrates.In addition, the height of the first orientation projection is greater than the height of the second orientation projection.Wherein, only as the usefulness of orientation, remaining first orientation projection then contacts with active elements array substrates the part first orientation projection, makes remaining first orientation projection not only have the orientation function, also can be used as the usefulness of separation material.Liquid crystal layer is disposed between subtend substrate and the active elements array substrates.Above-mentioned display panels has high aperture.
Description
Technical field
The present invention relates to a kind of display panels, particularly a kind of display panels with high aperture (apertureratio).
Background technology
(Liquid Crystal Display, LCD) employed display panel is made of an active elements array substrates, a subtend substrate and the liquid crystal layer that is disposed between this two substrates LCD.At present, display panels all towards full-colorization, large scale, high resolving power and cheaply direction develop, yet the various performances of display panels are as answer speed, contrast and visual angle etc., all relevant with liquid crystal layer.
In order precisely to control the gap (cell gap) of LCD upper and lower base plate, generally can between active elements array substrates and subtend substrate, add separation material (spacer).In the past, common separation material was spherical separation material (ball spacer), but the configuration regular meeting of spherical separation material has the regular meeting of edge of situation pockety and spherical separation material that the phenomenon of light leak takes place.Therefore, come out with photoresistance separation material (photo spacer) development that photoresist is made, and replace spherical separation material gradually.Yet, though the photoresistance separation material can rule and correctly arranged, and not having problem of uneven distribution, its edge still can produce the phenomenon of light leak.When making the photoresistance separation material, must on the position of photoresistance separation material, design light shield layer (as black matrix) to reduce the influence of light leakage phenomena to image quality.In addition, in order to make the photoresistance separation material firm, must on active elements array substrates, make the platform corresponding (stage) with the photoresistance separation material.Like this, therefore the aperture opening ratio of display panels reduces.
With regard to the display panel of multi-domain vertical alignment liquid crystal displays,, can on the subtend substrate, dispose a plurality of orientation projectioies usually in order to reach wide-visual angle effect.Yet the edge of orientation projection is the same with the edge of above-mentioned separation material, and the phenomenon of light leak all may take place, and the black matrix that must dispose shading is affected with the display effect of avoiding display panels.Therefore, have at the same time in the multi-domain vertical alignment liquid crystal displays of separation material and orientation projection, how keeping aperture opening ratio is one of subject under discussion worth thinking deeply about.
Summary of the invention
Because the problems referred to above the invention provides a kind of display panels, when disposing simultaneously with separation material to solve the orientation projection, the problem that aperture opening ratio significantly reduces.
The present invention proposes a kind of display panels, and it comprises active elements array substrates, subtend substrate and liquid crystal layer.Active elements array substrates comprises a plurality of pixel cells, and each pixel cell has reflector space, penetration region, active component, electrically connects this active component and is positioned at the reflective pixel electrode of this reflector space and electrically connects this active component and be positioned at the transparent pixels electrode of this penetration region.The subtend substrate is disposed at the top of active elements array substrates, the subtend substrate has one and shares electrode, a plurality of first orientation projection and a plurality of second orientation projectioies corresponding to penetration region corresponding to reflector space, wherein first orientation projection and the second orientation projection be between subtend substrate and active elements array substrates, and the described first orientation projection is all between this shared electrode and this reflective pixel electrode.In addition, the height of the first orientation projection is greater than the height of the second orientation projection.Only as the usefulness of orientation, remaining described first orientation projection then contacts with described active elements array substrates the described first orientation projection of part, makes remaining described first orientation projection not only have the orientation function, also can be used as the usefulness of separation material.Liquid crystal layer then is disposed between subtend substrate and the active elements array substrates.
In one embodiment of this invention, above-mentioned active elements array substrates has a plurality of depressions, and each depression is corresponding to the below of the part first orientation projection.Simultaneously, for example keep a gap corresponding to the part first orientation projection of each depression top, and remaining first orientation projection contacts with active elements array substrates with active elements array substrates.
In one embodiment of this invention, above-mentioned subtend substrate also comprises black matrix, corresponding to first orientation projection and the second orientation convex configuration.
In one embodiment of this invention, above-mentioned each pixel cell comprises active component, reflective pixel electrode and transparent pixels electrode.Wherein, reflective pixel electrode electrically connects active element, and is positioned at reflector space, and the transparent pixels electrode electrically connects active element, and is positioned at penetration region.At this moment, active component for example is positioned at the below of reflective pixel electrode.
In one embodiment of this invention, above-mentioned active elements array substrates also comprises a plurality of projections, and wherein reflective pixel electrode covers projection.
In one embodiment of this invention, above-mentioned active elements array substrates also comprises the bed hedgehopping layer, and wherein reflective pixel electrode covers bed hedgehopping layer and projection.
In one embodiment of this invention, above-mentioned subtend substrate for example comprises the bed hedgehopping layer, and corresponding to the top of each reflective pixel electrode, the subtend substrate also comprises shared electrode simultaneously, and shared electrode covers the bed hedgehopping layer.
In one embodiment of this invention, above-mentioned subtend substrate comprises colored filter.
The present invention also proposes a kind of display panels, and it comprises active elements array substrates, subtend substrate and liquid crystal layer.Active elements array substrates comprises a plurality of pixel cells, and each pixel cell has reflector space, penetration region, active component, electrically connect this active component and be positioned at the reflective pixel electrode of this reflector space, with electrically connect this active component and be positioned at the transparent pixels electrode of this penetration region, and active elements array substrates has a plurality of depressions, and described depression is positioned at the partial reflection zone.The subtend substrate is disposed at the top of active elements array substrates, the subtend substrate has one and shares electrode, a plurality of first orientation projection and a plurality of second orientation projectioies corresponding to penetration region corresponding to reflector space, and first orientation projection and the second orientation projection are between subtend substrate and active elements array substrates, and the described first orientation projection is all between this shared electrode and this reflective pixel electrode.In addition, the part first orientation projection is corresponding to the top of depression, and keep a gap with active elements array substrates, and remaining first orientation projection contacts with active elements array substrates, make the described first orientation projection of this part only as the usefulness of orientation, remaining described first orientation projection then not only has the orientation function, also can be used as the usefulness of separation material.Liquid crystal layer then is disposed between subtend substrate and the active elements array substrates.
In one embodiment of this invention, above-mentioned subtend substrate also comprises black matrix, corresponding to first orientation projection and the second orientation convex configuration.
In one embodiment of this invention, above-mentioned each pixel cell comprises active component, reflective pixel electrode and transparent pixels electrode.Wherein, reflective pixel electrode electrically connects active element, and is positioned at reflector space, and the transparent pixels electrode electrically connects active element, and is positioned at penetration region.At this moment, active component for example is positioned at the below of reflective pixel electrode.
In one embodiment of this invention, above-mentioned active elements array substrates also comprises a plurality of projections, and wherein reflective pixel electrode covers projection.
In one embodiment of this invention, above-mentioned active elements array substrates also comprises the bed hedgehopping layer, and wherein reflective pixel electrode covers bed hedgehopping layer and projection.
On the other hand, the subtend substrate can comprise the bed hedgehopping layer, and corresponding to the top of each reflective pixel electrode, and the subtend substrate also comprises shared electrode, and shared electrode covers the bed hedgehopping layer.
In one embodiment of this invention, above-mentioned subtend substrate comprises colored filter.
In the display panels in the above embodiment of the present invention, the orientation projection that contacts with active elements array substrates can be used as the usefulness of separation material, does not therefore need to dispose separation material in addition on other position, can improve the aperture opening ratio of display panels.
For above and other objects of the present invention, feature and advantage can be become apparent, embodiment cited below particularly, and conjunction with figs. is described in detail below.
Description of drawings
Fig. 1 a is the schematic top plan view of the display panels of the first embodiment of the present invention.
The sectional view that Fig. 1 b is painted for the hatching line A-A ' along Fig. 1 a.
The sectional view that Fig. 1 c is painted for the hatching line B-B ' along Fig. 1 a.
Fig. 2 a is the schematic top plan view of the display panels of the second embodiment of the present invention.
The diagrammatic cross-section that Fig. 2 b and Fig. 2 c are painted for the hatching line A-A ' along Fig. 2 a.
Fig. 3 a is depicted as the schematic top plan view of the display panels of the third embodiment of the present invention.
Fig. 3 b is depicted as the diagrammatic cross-section of reflector space of the display panels of the third embodiment of the present invention.
Wherein, description of reference numerals is as follows:
100,200,300: display panels 110: active elements array substrates
112: projection 114: depression
116: flatness layer 120: pixel cell
122: active component 124: reflective pixel electrode
126: transparent pixels electrode 130: the subtend substrate
132,132A, 132B, 332A, 332B: the first orientation projection
134: the second orientation projectioies 136: black matrix
138: color filter film 140: shared electrode
150: liquid crystal layer 270: the bed hedgehopping layer
A-A ': hatching line B-B ': hatching line
Dr: the gap d t of reflector space: the gap of penetration region
G: gap h1, h2: highly
R: reflector space T: penetration region
Embodiment
First embodiment
Fig. 1 a is the schematic top plan view of the display panels of the first embodiment of the present invention, and Fig. 1 b is the sectional view along the hatching line A-A ' of Fig. 1 a, and Fig. 1 c is the sectional view along the hatching line B-B ' of Fig. 1 a.Please earlier simultaneously with reference to Fig. 1 a and Fig. 1 b, the display panels 100 of present embodiment comprises active elements array substrates 110, subtend substrate 130 and liquid crystal layer 150.Active elements array substrates 110 comprises a plurality of pixel cells 120, and each pixel cell 120 has reflector space R and penetration region T.The gap d r of reflector space R is approximate identical with the gap d t of penetration region T, and this structure is called single interstitial structure (single gap).Subtend substrate 130 is disposed at the top of active elements array substrates 110.Subtend substrate 130 has a plurality of first orientation projection 132 and a plurality of second orientation projectioies 134 corresponding to penetration region T corresponding to reflector space R, and wherein first orientation projection, the 132 and second orientation projection 134 is between subtend substrate 130 and active elements array substrates 110.In addition, the height h1 of the first orientation projection 132 is greater than the height h2 of the second orientation projection 134.Liquid crystal layer 150 is disposed between subtend substrate 130 and the active elements array substrates 110.
Specifically, pixel cell 120 comprises active component 122, reflective pixel electrode 124 and transparent pixels electrode 126.Wherein, reflective pixel electrode 124 electrically connects active element 122, and is positioned at reflector space R, and transparent pixels electrode 126 electrically connects active element 122, and is positioned at penetration region T.In the present embodiment, active component 122 for example is positioned at the below of reflective pixel electrode 124, and transparent pixels electrode 126 is electrically connected to active component 122 by reflective pixel electrode 124.Therefore, when display panels 100 was in driving condition, transparent pixels electrode 126 can have identical voltage with reflective pixel electrode 124.In other embodiments, transparent pixels electrode 126 can be electrically connected to different active components respectively with reflective pixel electrode 124, and transparent pixels electrode 126 can have identical or different voltage with reflective pixel electrode 124.
In order to improve the reflectivity of reflective pixel electrode 124, present embodiment can dispose a plurality of projections 112 on active elements array substrates 110, and makes reflective pixel electrode 124 cover projection 112.In addition, subtend substrate 130 for example is a colored filter, and it has color filter films 138 such as redness, green and blueness, and also has shared electrode 140 to be disposed on the subtend substrate 130.
Please continue b with reference to Fig. 1, first orientation projection, the 132 and second orientation projection 134 for example is to be disposed in the middle of the viewing area of display panels 100, first orientation projection, the 132 and second orientation projection 134 can make the liquid crystal molecule in the liquid crystal layer 150 have a plurality of orientations, and then makes display panels 100 have the function of wide viewing angle.In addition, shown in Fig. 1 b, the first orientation projection 132 that is positioned at reflector space R can contact with active elements array substrates 110, and just the height h1 of the first orientation projection 132 can support two substrates 110,130, to keep the thickness of liquid crystal layer 150.Therefore, the first orientation projection 132 can be used as separation material, and need be on other position in the display panels 100 the additional configuration separation material keep the thickness of liquid crystal layer 150.
Because the phenomenon of light leak takes place in the edge of first orientation projection, the 132 and second orientation projection 134 easily, so present embodiment can be provided with black matrix 136 on subtend substrate 130, and make black matrix 136 corresponding to 134 configurations of first orientation projection, 132 and second orientation projection.When watching perpendicular to the angle of subtend substrate 130, the area of black matrix 136 can be slightly larger than the area of first orientation projection, the 132 and second orientation projection 134, so that black matrix 136 is enough to cover light leakage phenomena or other defective.What deserves to be mentioned is that in the present embodiment, the first orientation projection 132 not only has the orientation function, also can be used as the usefulness of separation material, therefore need on other position, additionally not make separation material.
In addition, the thickness (being the LCD gap) in order to keep suitable liquid crystal layer 150 must make separation material be evenly distributed in the display panels 100 with specific density.Therefore, in the present embodiment, active elements array substrates 110 can have a plurality of depressions 114, and 114 belows (shown in Fig. 1 c) corresponding to part first orientation projection 132a of caving in.Simultaneously, protruding 132a for example keeps a gap g with active elements array substrates 110 corresponding to part first orientation of depression 114 tops, and remaining first orientation projection 132b then contacts with active elements array substrates 110.Gap g between first orientation projection 132a and the active elements array substrates 110 for example is between the 5.0 μ m between 0.1 μ m.In brief, only as the usefulness of orientation, remaining first orientation projection 132b then can take into account the function of orientation function and separation material to part first orientation projection 132a.
Shown in Fig. 1 c, for example dispose flatness layer 116 on the active elements array substrates 110, and in the present embodiment, depression 114 is formed on the flatness layer 116.Specifically, depression 114 formation for example is when forming projection 112, part flatness layer 116 is removed form, and 114 the making of therefore caving in can't make the manufacturing step of display panels 100 increase or be complicated.Certainly, in other embodiments, depression 114 also can be to be formed on other rete of active elements array substrates 110.Generally speaking, the thickness of the liquid crystal layer 150 in the display panels 100 can be subjected to tight control, and display panels 100 has high aperture opening ratio.
Second embodiment
Fig. 2 a is the schematic top plan view of the display panels of the second embodiment of the present invention, and Fig. 2 b and Fig. 2 c are the diagrammatic cross-section along the hatching line A-A ' of Fig. 2 a.Please earlier with reference to Fig. 2 a, the display panels 200 of present embodiment and the display panels 100 of first embodiment are roughly the same, and the two main difference part is, disposes bed hedgehopping layer 270 in the display panels 200.By Fig. 2 a and Fig. 2 b as can be known, bed hedgehopping layer 270 can make the product (Δ nd) of the refractive index of liquid crystal layer of reflector space R and penetration region T top and thickness roughly the same, to reach good display.
In the present embodiment, bed hedgehopping layer 270 also can be disposed at (shown in Fig. 2 b) on the subtend substrate 130, and corresponding to the top of each reflective pixel electrode 124.At this moment, the shared electrode 140 on the subtend substrate 130 can cover bed hedgehopping layer 270, and the first orientation projection 132 is disposed on the bed hedgehopping layer 270.On the other hand, bed hedgehopping layer 270 also can be disposed at (shown in Fig. 2 c) on the active elements array substrates 110, and then projection 112 is configurable on bed hedgehopping layer 270, and reflective pixel electrode 124 is covered on projection 112 and the bed hedgehopping layer 270.When having had the configuration of bed hedgehopping layer 270 that display panels 200 is shown, in reflector space R and penetration region T, has comparatively close display quality.The gap d r of reflector space R is about 1/2 o'clock of penetration region T gap d t, has best optical appearance, and this structure is called double gap structure (dual gap).
From the above, the first orientation projection 132 of display panels 200, the design of the second orientation projection 134 are identical with the first orientation projection 132, second orientation projection 134 of display panels 100, the part first orientation projection 132 can be used as separation material and uses, in addition, the height h1 of the first orientation projection 132 is greater than the height h2 of the second orientation projection 134.Therefore, display panels 200 also has the high advantage of aperture opening ratio.It should be noted that when bed hedgehopping layer 270 is positioned on the active elements array substrates 110 (shown in Fig. 2 c), also can be formed on the bed hedgehopping layer 270 with the depression 114 (shown in Fig. 1 c) of part first orientation projection 132 corresponding configurations.Simultaneously, the distance between active elements array substrates 110 and the subtend substrate 130 can be substantially equal to the summation of the height of the height of the first orientation projection 132 and bed hedgehopping layer 270.Display panels 200 not only has high aperture under such design, also have superior display quality.
The 3rd embodiment
Fig. 3 a is depicted as the schematic top plan view of the display panels of the third embodiment of the present invention, and Fig. 3 b is depicted as the diagrammatic cross-section of reflector space of the display panels of the third embodiment of the present invention.The display panels 300 of present embodiment is similar to display panels 100, so components identical is labeled the same reference numeral, and does not explain in addition at this.
Please in display panels 300, have a plurality of depressions 114 on the active elements array substrates 110 simultaneously with reference to Fig. 3 a and Fig. 3 b, and cave in 114 corresponding to part first orientation projection 332A.At this moment, active elements array substrates 110 and first orientation projection 332A keep a gap g, and remaining first orientation projection 332B then contacts with active elements array substrates 110.In fact, a plurality of depressions 114 on the active elements array substrates 110 for example can be formed in the middle of the flatness layer 116 or other rete on the active elements array substrates 100.In addition, in display panels 300, present embodiment does not limit the height of first orientation projection 332A, 332B must be greater than the height of the second orientation projection 334.
In the display panels 300, remaining first orientation projection 332B can be used as separation material and the thickness of liquid crystal layer 150 is kept necessarily, so display panels 300 has preferable quality.Simultaneously, the display panels 300 also display panels 100 with the foregoing description is the same, has high aperture, and in addition, display panels 300 can also can present more superior display quality by configuration bed hedgehopping layer as display panels 200.
In sum, in display panels of the present invention,, and do not need to dispose separation material in addition to keep the thickness of liquid crystal layer, therefore, can reduce the aperture opening ratio loss of display panels in other position because remaining orientation projection also can be used as the usefulness of separation material.In brief, display panels of the present invention has high aperture.
Though the present invention with a plurality of embodiment openly as above; but it is not in order to limit the present invention; those skilled in the art is not in breaking away from design of the present invention and scope; should do some changes and revise, so protection scope of the present invention should be as the criterion with the scope of appending claims.
Claims (18)
1. display panels comprises:
One active elements array substrates comprises a plurality of pixel cells, and each described pixel cell has:
One reflector space;
One penetration region;
One active component;
One reflective pixel electrode electrically connects this active component, and is positioned at this reflector space; With
One transparent pixels electrode electrically connects this active component, and is positioned at this penetration region;
One subtend substrate, be disposed at the top of this active elements array substrates, this subtend substrate has one and shares electrode, a plurality of first orientation projection and a plurality of second orientation projectioies corresponding to described penetration region corresponding to described reflector space, described first orientation projection and the described second orientation projection are between this subtend substrate and this active elements array substrates, and the described first orientation projection is all between this shared electrode and this reflective pixel electrode, and the height of the described first orientation projection is greater than the height of the described second orientation projection, wherein the described first orientation projection of part is only as the usefulness of orientation, remaining described first orientation projection then contacts with described active elements array substrates, make remaining described first orientation projection not only have the orientation function, also can be used as the usefulness of separation material; And
One liquid crystal layer is disposed between this subtend substrate and this active elements array substrates.
2. display panels as claimed in claim 1, wherein this active elements array substrates has a plurality of depressions, and described depression is corresponding to the below of the described first orientation projection of part.
3. display panels as claimed in claim 2 wherein keep a gap corresponding to described first orientation projection of the part of the top of described depression with this active elements array substrates, and remaining first orientation projection contacts with this active elements array substrates.
4. display panels as claimed in claim 1, wherein this subtend substrate also comprises a black matrix, this black matrix is corresponding to described first orientation projection and the described second orientation convex configuration.
5. display panels as claimed in claim 1, wherein this active component is positioned at the below of this reflective pixel electrode.
6. display panels as claimed in claim 1, wherein this active elements array substrates also comprises a plurality of projections, and this reflective pixel electrode covers described projection.
7. display panels as claimed in claim 6, wherein this active elements array substrates also comprises a bed hedgehopping layer, wherein this reflective pixel electrode covers this bed hedgehopping layer and described projection.
8. display panels as claimed in claim 1, wherein this subtend substrate also comprises a bed hedgehopping layer, this bed hedgehopping layer is corresponding to the top of each described reflective pixel electrode.
9. display panels as claimed in claim 8, wherein this shared electrode covers this bed hedgehopping layer.
10. display panels as claimed in claim 1, wherein this subtend substrate comprises a colored filter.
11. a display panels comprises:
One active elements array substrates comprises a plurality of pixel cells, and each described pixel cell has:
One reflector space;
One penetration region;
One active component;
One reflective pixel electrode electrically connects this active component, and is positioned at this reflector space; With
One transparent pixels electrode electrically connects this active component, and is positioned at this penetration region,
Wherein, this active elements array substrates has a plurality of depressions, and described depression is positioned at the described reflector space of part;
One subtend substrate, be disposed at the top of this active elements array substrates, this subtend substrate has one and shares electrode, a plurality of first orientation projection and a plurality of second orientation projectioies corresponding to described penetration region corresponding to described reflector space, and described first orientation projection and the described second orientation projection are between this subtend substrate and this active elements array substrates, and the described first orientation projection is all between this shared electrode and this reflective pixel electrode, wherein the described first orientation projection of part is corresponding to the top of described depression, and keep a gap with this active elements array substrates, and remaining described first orientation projection contacts with this active elements array substrates, make the described first orientation projection of this part only as the usefulness of orientation, remaining described first orientation projection then not only has the orientation function, also can be used as the usefulness of separation material; And
One liquid crystal layer is disposed between this subtend substrate and this active elements array substrates.
12. display panels as claimed in claim 11, wherein this subtend substrate also comprises a black matrix, and this black matrix is corresponding to described first orientation projection and the described second orientation convex configuration.
13. display panels as claimed in claim 11, wherein this active component is positioned at the below of this reflective pixel electrode.
14. display panels as claimed in claim 11, wherein this active elements array substrates also comprises a plurality of projections, and wherein this reflective pixel electrode covers described projection.
15. display panels as claimed in claim 14, wherein this active elements array substrates also comprises a bed hedgehopping layer, and wherein this reflective pixel electrode covers this bed hedgehopping layer and described projection.
16. display panels as claimed in claim 11, wherein this subtend substrate also comprises a bed hedgehopping layer, and this bed hedgehopping layer is corresponding to the top of each described reflective pixel electrode.
17. display panels as claimed in claim 16, wherein this shared electrode covers this bed hedgehopping layer.
18. display panels as claimed in claim 11, wherein this subtend substrate comprises a colored filter.
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| CNB2007100890840A CN100568073C (en) | 2007-03-29 | 2007-03-29 | Display panels |
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| CNB2007100890840A CN100568073C (en) | 2007-03-29 | 2007-03-29 | Display panels |
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| CN102902103A (en) * | 2012-11-06 | 2013-01-30 | 深圳市华星光电技术有限公司 | Liquid crystal box and liquid crystal display device |
| CN103487997B (en) * | 2013-09-27 | 2015-11-25 | 合肥京东方光电科技有限公司 | Tft array substrate, display panels and display device |
| CN106873263A (en) * | 2017-01-18 | 2017-06-20 | 京东方科技集团股份有限公司 | A kind of display panel and its manufacture method, display device |
| CN206805091U (en) * | 2017-06-16 | 2017-12-26 | 京东方科技集团股份有限公司 | A kind of display base plate, display panel and display device |
| CN115762328A (en) * | 2020-03-17 | 2023-03-07 | 群创光电股份有限公司 | Display device |
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