CN201383062Y - Liquid crystal display - Google Patents

Liquid crystal display Download PDF

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Publication number
CN201383062Y
CN201383062Y CN200920147987U CN200920147987U CN201383062Y CN 201383062 Y CN201383062 Y CN 201383062Y CN 200920147987 U CN200920147987 U CN 200920147987U CN 200920147987 U CN200920147987 U CN 200920147987U CN 201383062 Y CN201383062 Y CN 201383062Y
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CN
China
Prior art keywords
filter unit
liquid crystal
substrate
light filter
coloured light
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN200920147987U
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Chinese (zh)
Inventor
黄贵伟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chunghwa Picture Tubes Wujiang Ltd
CPT Video Wujiang Co Ltd
Chunghwa Picture Tubes Ltd
Original Assignee
CPT Video Wujiang Co Ltd
Chunghwa Picture Tubes Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by CPT Video Wujiang Co Ltd, Chunghwa Picture Tubes Ltd filed Critical CPT Video Wujiang Co Ltd
Priority to CN200920147987U priority Critical patent/CN201383062Y/en
Application granted granted Critical
Publication of CN201383062Y publication Critical patent/CN201383062Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model provides an LCD (liquid crystal display) which comprises a first base plate and a second base plate. The first and the second base plates are arranged correspondingly; a plurality of black matrix layers are arranged on the first base plate; a first color light filtering unit, a second color light filtering unit and a third color light filtering unit are arranged on the first base plate in regular turn; a first stack layer, a second stack layer and a third stack layer are correspondingly arranged on one of the black matrix layers to form a barricade to surround the first, the second and the third color light filtering units, which can prevent the liquid crystal from contacting unhardened frame sealant and being polluted; and the frame sealant is arranged between the first and the second base plates, surrounds the barricade and bonds the first and the second base plates.

Description

Liquid crystal indicator
Technical field
The utility model is about a kind of liquid crystal indicator, and particularly relevant for a kind of liquid crystal indicator with barricade, described barricade is to make on black matrix layer or light shield layer, is beneficial to effectively avoid the pollution of liquid crystal and unhardened frame glue.
Background technology
Along with the progress of optics science and technology with semiconductor technology, liquid crystal indicator has been widely used on the electronic product display device.Advantages such as LCD has that high image quality, volume are little, in light weight, low voltage drive, low consumpting power and applied range, so be applied to Portable TV, mobile phone, shoot with video-corder projector, electronic product or computer products such as mobile computer, desktop display and satellite navigation display, it has replaced the mainstream technology that traditional cathode-ray tube (CRT) becomes display.
In the prior art, when making LCD, make frame glue in order to prevent liquid crystal pollution among non-display area.Yet, when frame glue pre-hardening degree is imperfect, unavoidably cause the pollution of liquid crystal.
In other words, there is above-mentioned shortcoming in known technology about the manufacture method of liquid crystal indicator, therefore, the utility model provides a kind of liquid crystal display structure and method of avoiding liquid crystal and unhardened frame glue stain, it than known technology further, be the incomparable person of known technology, and can block the pollution of liquid crystal and frame glue and the cost and the time of minimizing processing procedure effectively.
The utility model content
In order to overcome foregoing problems, the purpose of this utility model is to provide a kind of liquid crystal indicator, this is false pixel (dummy pixel) zone that utilizes (or colored filter is formed on the substrate on the thin film transistor (TFT) array) on the colored optical filtering substrates, utilize the mode of chromatograph storehouse to form a barrier wall structure, this kind design can block the pollution of liquid crystal and frame glue.
Another purpose of the present utility model provides a kind of liquid crystal indicator, and described structure can reduce the cost and the time of processing procedure.
An also purpose of the present utility model is to provide a kind of liquid crystal indicator, and structure wherein of the present utility model can not cause the pollution of liquid crystal when frame glue and liquid crystal shine simultaneously.
Liquid crystal indicator provided by the utility model comprises first substrate and second substrate, corresponding configuration; A plurality of black matrix layer are disposed on first substrate; The first coloured light filter unit, the second coloured light filter unit and the 3rd coloured light filter unit are disposed on first substrate in regular turn, first stack layer, second stack layer and the 3rd stack layer correspondence are disposed on one of them of a plurality of black matrix layer, stack arrangement becomes a barricade and centers on described first, the second and the 3rd coloured light filter unit, the first coloured light filter unit wherein, the second coloured light filter unit and the 3rd coloured light filter unit are formed on a plurality of black matrix layer, wherein the first coloured light filter unit, the second coloured light filter unit and the 3rd coloured light filter unit respectively with first stack layer, second stack layer and the 3rd stack layer form simultaneously; Reach frame glue and be disposed between first substrate and second substrate, frame glue is around barricade.
Wherein said first substrate can be the substrate that colored optical filtering substrates or colored filter are formed at the thin film transistor (TFT) array top, and second substrate is active assembly array substrate or transparent conductive substrate.First stack layer, second stack layer and the 3rd stack layer are formed on the false pixel region of first substrate.First and second or the 3rd coloured light filter unit are to be selected from one of ruddiness filter unit, green glow filter unit, blue light filter unit.
Description of drawings
Said modules, and the utility model further feature and advantage, by the content of reading embodiment and graphic after, will be more obvious:
Figure one A to E is the schematic cross-section of LCD device preparation method of the present utility model according to first embodiment of the present utility model.
Figure two is the schematic cross-section of another liquid crystal indicator of the present utility model according to second embodiment of the present utility model.
[primary clustering symbol description]
Colored optical filtering substrates 60 black matrix layer 61,61a
Ruddiness filter unit 62 green glow filter units 63
Blue light filter unit 64 first stack layer 62a
The second stack layer 63a the 3rd stack layer 64a
Shared electrode 65 barricades 66
Pixel electrode 67,67a, 67b, 67c
Active assembly array substrate 69 frame glue 68
Colored filter is formed at the substrate 70 of thin film transistor (TFT) array top
Embodiment
The utility model will cooperate its preferred embodiment and the diagram of enclosing to be specified in down.Should the person of understanding be that preferred embodiments all in the utility model only is the usefulness of illustration, be not in order to restriction.Therefore the preferred embodiment in literary composition, the utility model also can be widely used among other embodiment.And the utility model is not limited to any embodiment, should be with above-mentioned claim and equivalent fields thereof and decide.
In order to overcome the known technology problem, the utility model provides a kind of liquid crystal indicator, and this is to be used on black matrix layer or the light shield layer to make barricade, to avoid the pollution of liquid crystal and unhardened frame glue effectively.
In the prior art, must utilize ultraviolet ray (UV) light to make liquid crystal produce tilt angle, and it is for fear of irradiation ultraviolet radiation light simultaneously when the frame glue sclerosis processing procedure, may produce the situation of liquid crystal and frame glue stain, so need extra ultraviolet light shield together to make the separately irradiation of frame glue and liquid crystal, carry out the sclerosis of liquid crystal material in advance after frame glue is hardened again, so cause the whole processing procedure time to increase and equipment cost.
Liquid crystal indicator of the present utility model is to utilize the mode of chromatograph storehouse to form a barrier wall structure on false pixel (dummy pixel) zone, and wherein barrier wall structure is disposed between viewing area and the frame glue.This kind design can block the pollution of liquid crystal and frame glue, wherein can not increase the equipment and the time of processing procedure, and frame glue and liquid crystal can shine simultaneously, and this is an important technology feature of the present utility model.In other words, it is a kind of than known technology liquid crystal indicator framework further that the utility model provides, and it is the incomparable person of known technology.
Figure one A to E is the liquid crystal indicator sectional view of first embodiment of the present utility model.Among each embodiment of the present utility model, identical constitutive requirements are repeated description or explanation not.In addition, embodiment of the present utility model only is used to illustrate that notion of the present utility model is not the liquid crystal indicator that is used to limit the utility model method made, in other liquid crystal indicator the assembly that may comprise or constitutive requirements in diagram, omit.
With reference to figure one A to E, it is the sectional view of the manufacture method of the liquid crystal indicator that present embodiment provided.Colored optical filtering substrates 60 at first is provided, and black then matrix layer (black matrix) 61,61a are formed on the colored optical filtering substrates 60.For an embodiment, colored optical filtering substrates 60 is a transparency carrier, and its material for example is glass, quartz or flexible materials, and the material of black matrix layer 61,61a for example is resin or other suitable material, to meet the demand of environmental protection.Above-mentioned black matrix layer 61,61a are disposed on the colored optical filtering substrates 60, and it defines pixel region a plurality of times in the viewing area.
Colored light-filtering units is positioned on the colored optical filtering substrates 60 thereupon, for example comprise that ruddiness filter unit 62, green glow filter unit 63 and blue light filter unit 64 are formed on the inferior pixel region that colored optical filtering substrates 60 defined in regular turn, for an embodiment, its material can be respectively red photoresistance, green photoresistance and blue photoresistance.In addition, ruddiness filter unit 62, green glow filter unit 63 and blue light filter unit 64 can be formed on the black matrix layer 61.More specifically, the utility model is when forming ruddiness filter unit 62, green glow filter unit 63 and blue light filter unit 64 respectively, form the corresponding first stack layer 62a, the second stack layer 63a and the 3rd stack layer 64a in regular turn on false pixel (dummy pixel) zone of colored optical filtering substrates 60 on black matrix layer 61a or light shield layer, the result forms barricade 66 with as the liquid crystal barricade.Black matrix layer 61a is positioned on false pixel (dummy pixel) zone.For example, form the first stack layer 62a when forming ruddiness filter unit 62, promptly the first stack layer 62a is formed on black matrix layer 61 or the light shield layer, shown in figure one A; Form the second stack layer 63a when forming green glow filter unit 63, promptly the second stack layer 63a is formed on the first stack layer 62a, shown in figure one B; And when forming blue light filter unit 64, form the 3rd stack layer 64a, promptly the 3rd stack layer 64a is formed on the second stack layer 63a, shown in figure one C.Wherein above-mentioned ruddiness filter unit 62, green glow filter unit 63 and blue light filter unit 64 are formed on black matrix layer 61 zones, and the first stack layer 62a, the second stack layer 63a and the 3rd stack layer 64a are formed on the black matrix layer 61a zone.In other words, manufacturing barricade 66 of the present utility model need not to increase extra process apparatus or light shield, so can improve prior art disappearance but can not increase the processing procedure cost.In addition, the order of the first stack layer 62a, the second stack layer 63a and the 3rd stack layer 64a combination also can have corresponding change and adjust with the order of colored light-filtering units formation or the design of light shield, and is self-evident.And also not limiting it must form simultaneously with colored light-filtering units.
Then, form shared electrode 65 on colored optical filtering substrates 60, and this shared electrode 65 is disposed on the black matrix layer 61 and colored light-filtering units of part, shown in figure one D.In one embodiment, the material of shared electrode 65 can be indium tin oxide (indium tin oxide, ITO), indium-zinc oxide (indiumzinc oxide, IZO) or other transparent conductive material.Utilize and to make display panels of the present utility model as the illustrated colored optical filtering substrates 60 of figure one D.
Please refer to figure one E, display panels of the present utility model comprises above-mentioned colored optical filtering substrates 60, active assembly array substrate 69 and liquid crystal layer.Wherein, liquid crystal layer is disposed between colorized optical filtering (CF) substrate 60 and the active assembly array substrate 69.In the present embodiment, be to form colored light- filtering units 62,63,64 on the colored optical filtering substrates 60, and be to form thin film transistor (TFT) (TFT) array on active assembly array substrate 69.Pixel electrode 67 is disposed on the active assembly array substrate 69.In one embodiment, the material of pixel electrode 67 can be indium tin oxide (ITO), indium-zinc oxide (IZO) or other transparent conductive material.
Afterwards, form a frame glue 68 to be disposed between colored optical filtering substrates 60 and the active assembly array substrate 69, shown in figure one E.This frame glue 68 forms an annular enclosed interval (territory) in the non-display area around the LCD.Frame glue 68 centers on barricade 66, and utilizes frame glue 68 that colored optical filtering substrates 60 and active assembly array substrate 69 are binded each other.It should be noted that the colored light-filtering units that barricade 66 centers in the viewing area.
In the process that above-mentioned display panels forms, colored optical filtering substrates 60 is through after 68 coatings of frame glue, next carry out and active assembly array substrate 69 pressings and inject liquid crystal between colored optical filtering substrates 60 and active assembly array substrate 69 and the step of formation liquid crystal layer, to obtain display panels, shown in figure one E.After the injection liquid crystal was to colored optical filtering substrates 60, liquid crystal can diffuse to barricade 66 gradually.It should be noted that because the colored light-filtering units that barricade 66 centers in the viewing area stops to flow so can be blocked when liquid crystal flows to barricade 66.Because the liquid crystal in the liquid crystal layer is hampered by barricade 66, no liquid crystal molecule exists between frame glue 68 and the barricade 66, and therefore, the liquid crystal that design of the present utility model can be blocked in the liquid crystal layer pollutes with uncured contacting of frame glue 68.Frame glue 68 can shine simultaneously with liquid crystal, at the same time under the radiation situation, because barricade 66 has the liquid crystal of stopping effect, and the liquid crystal pollution that causes so liquid crystal can not contact with uncured frame glue 68, this is an important technology feature of the present utility model.
Consult figure one E, be disposed at wherein comprising colored optical filtering substrates, it utilizes the mode of chromatograph storehouse to finish the making of barricade when making red (R), green (G), blue (B) look resistance.For an embodiment, the utility model can be adjusted the height (or thickness) of red (R), green (G), blue (B) look resistance height (or thickness) or barricade 66 according to the needs on the processing procedure.Barricade 66 is disposed between viewing area and the frame glue 68, and frame glue 68 is around barricade 66.Because barrier wall structure system is disposed on the false pixel region, therefore method for making of the present utility model can not influence the size and the substrate utilization factor of active area (Active Area).
With reference to figure two, the liquid crystal indicator that it is provided for another embodiment of the utility model.What deserves to be mentioned is, in this embodiment, comprise that colored optical filtering substrates 60 is transparent conductive substrate, and colored filter (unit) is formed at thin film transistor (TFT) array top (color filter on array, COA) substrate 70, colored filter is formed on the substrate 70 of thin film transistor (TFT) array top and disposes thin film transistor (TFT) array (not icon), colored light- filtering units 62,63,64 and barricade 66, and colored light- filtering units 62,63,64 is formed on the thin film transistor (TFT) array.Shared electrode 65 is formed under the colored optical filtering substrates 60, and pixel electrode 67a, 67b, 67c are formed at respectively on the colored light- filtering units 62,63,64, and pixel electrode 67a, 67b, 67c are formed in colored filter on the substrate 70 of thin film transistor (TFT) array top and are discontinuous rete.The substrate 70 that colored filter is formed at the thin film transistor (TFT) array top comprises the colour filter array structure, and therefore, the substrate 70 that colored filter is formed at the thin film transistor (TFT) array top itself just has the function of optical filtering.In other words, design of the present utility model also can be applied to comprise on the liquid crystal indicator of colour filter array and array architecture of thin film transistor.In this embodiment, on false pixel on the substrate 70 above colored filter is formed at thin film transistor (TFT) array (dummy pixel) zone, the first stack layer 62a, the second stack layer 63a and the 3rd stack layer 64a are formed on black matrix layer 61a or the light shield layer in regular turn, and the result forms barricade 66 with as the liquid crystal barricade.
In sum, the stack layer that the utility model proposed, colored optical filtering substrates, active assembly array substrate and display panels have following advantage at least:
(1) stack layer and colored light-filtering units form simultaneously, when utilization has the colored optical filtering substrates of this stack layer or colored filter when being formed at the substrate manufacture display panels of thin film transistor (TFT) array top (COA), flow of liquid crystal can be stopped by stack layer, therefore liquid crystal can't touch with uncured frame splicing, so can avoid liquid crystal to be polluted.
(2) stack layer structure, colored optical filtering substrates, the colored filter that the utility model proposed is formed at the substrate of thin film transistor (TFT) array top (COA) and the making of display panels need not increase extra process apparatus or light shield, so its production cost can not increase.
To being familiar with this field skill person, though the utility model is illustrated as above with preferred embodiments, so it is not in order to limit spirit of the present utility model.Modification of being done in not breaking away from spirit of the present utility model and scope and similarly configuration all should be included in the above-mentioned claim scope, and this scope should cover all similar modification and similar structures, and should do the broadest annotation.

Claims (10)

1. a liquid crystal indicator is characterized in that, comprises;
One first substrate and one second substrate, corresponding configuration;
A plurality of black matrix layer are disposed on this first substrate;
One first coloured light filter unit, one second coloured light filter unit and one the 3rd coloured light filter unit are disposed on this first substrate in regular turn, one first stack layer, one second stack layer and one the 3rd stack layer correspondence are disposed on one of them of these a plurality of black matrix layer, stack arrangement become a barricade and around this first, the second and the 3rd coloured light filter unit, this first coloured light filter unit wherein, this second coloured light filter unit and the 3rd coloured light filter unit are formed on these a plurality of black matrix layer, wherein this first coloured light filter unit, this second coloured light filter unit and the 3rd coloured light filter unit respectively with this first stack layer, this second stack layer and the 3rd stack layer form simultaneously; And
One frame glue is disposed between this first substrate and this second substrate, and this frame glue is around this barricade.
2. liquid crystal indicator as claimed in claim 1 is characterized in that, this first substrate colored optical filtering substrates or colored filter are formed at the substrate of thin film transistor (TFT) array top.
3. liquid crystal indicator as claimed in claim 1 is characterized in that, this second substrate is active assembly array substrate or transparent conductive substrate.
4. liquid crystal indicator as claimed in claim 1 is characterized in that, this first stack layer, second stack layer and the 3rd stack layer are formed on the false pixel region of this first substrate.
5. liquid crystal indicator as claimed in claim 1 is characterized in that, also comprises a transparency conductive electrode and is formed on this first substrate.
6. liquid crystal indicator as claimed in claim 5 is characterized in that, this transparency conductive electrode is disposed at part and should deceives on matrix layer and this first, second and third coloured light filter unit.
7. liquid crystal indicator as claimed in claim 1 is characterized in that, this first coloured light filter unit/this second coloured light filter unit/the 3rd coloured light filter unit is to be selected from one of ruddiness filter unit, green glow filter unit, blue light filter unit.
8. liquid crystal indicator as claimed in claim 1 is characterized in that, comprises that also liquid crystal configurations is between this first substrate and this second substrate.
9. liquid crystal indicator as claimed in claim 1 is characterized in that, the material of this first substrate and this second substrate comprises glass, quartz or flexible materials.
10. liquid crystal indicator as claimed in claim 1 is characterized in that, the color of this first coloured light filter unit, this second coloured light filter unit and the 3rd coloured light filter unit is inequality.
CN200920147987U 2009-04-02 2009-04-02 Liquid crystal display Expired - Fee Related CN201383062Y (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103984146A (en) * 2013-12-20 2014-08-13 上海天马微电子有限公司 Color optical filter substrate as well as manufacturing method thereof, display panel and manufacturing method of display panel
CN105607352A (en) * 2016-01-04 2016-05-25 京东方科技集团股份有限公司 Display panel and displayer
CN105739185A (en) * 2016-05-10 2016-07-06 深圳市华星光电技术有限公司 Liquid crystal panel and manufacturing method thereof
CN106054465A (en) * 2016-05-27 2016-10-26 厦门天马微电子有限公司 Display panel

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103984146A (en) * 2013-12-20 2014-08-13 上海天马微电子有限公司 Color optical filter substrate as well as manufacturing method thereof, display panel and manufacturing method of display panel
CN105607352A (en) * 2016-01-04 2016-05-25 京东方科技集团股份有限公司 Display panel and displayer
CN105739185A (en) * 2016-05-10 2016-07-06 深圳市华星光电技术有限公司 Liquid crystal panel and manufacturing method thereof
CN106054465A (en) * 2016-05-27 2016-10-26 厦门天马微电子有限公司 Display panel

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GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20100113

Termination date: 20170402

CF01 Termination of patent right due to non-payment of annual fee