CN1322360C - Liquid crystal display device - Google Patents
Liquid crystal display device Download PDFInfo
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- CN1322360C CN1322360C CNB031142834A CN03114283A CN1322360C CN 1322360 C CN1322360 C CN 1322360C CN B031142834 A CNB031142834 A CN B031142834A CN 03114283 A CN03114283 A CN 03114283A CN 1322360 C CN1322360 C CN 1322360C
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- liquid crystal
- black matrix
- crystal indicator
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Abstract
The present invention relates to a liquid crystal display device which comprises a first basal layer, a liquid crystal layer, a black matrix, a wall and a second basal layer, wherein the first basal layer, the black matrix, the wall and the second basal layer are orderly arranged. The wall is arranged at the zone where the black matrix is arranged.
Description
[technical field]
The present invention relates to a kind of liquid crystal indicator that adopts black matrix".
[background technology]
LCD is a kind of passive type display device, for reaching the colored effect that shows, need provide a colored filter for it, its effect is to provide colored for LCD, cooperate other assembly such as TFT (Thin Film Transistor, thin film transistor (TFT)) array and liquid crystal and show different chromatic images.
Seeing also Fig. 1, is a kind of prior art liquid crystal indicator synoptic diagram.This liquid crystal indicator 20 comprises first basic unit 24 and second basic unit 27, fills a liquid crystal layer 25 therebetween.Second basic unit, 27 bottom surface tools, one tft array 26.First basic unit 24 and dyed layer 22, black matrix" 23 and ITO (Indium Tin Oxide, tin indium oxide) on it layer 21 common formation colored filter (indicating).This black matrix" 23 is the distribution of ranks shape and forms many grid in this first basic unit 24, its row and column infall has interval body 28, and this interval body 28 generally is to be made by transparent material, and it is in order to support this first basic unit 24 and second basic unit 27.These dyed layer 22 tools red (R), blue (B), green (G) three kinds of coloring units, recurring rule arrange these three kinds of coloring units in this first basic unit 24 seeing through Red light respectively, and stop the light transmission of other wavelength.This black matrix" 23 is arranged between these three kinds of coloring units, its effect is the light between three kinds of coloring units of blocking, prevent leakage of light and stop coloured material to mix that ITO layer 21 then cooperates the light of these dyed layer 22 each coloring units of control to see through number to show different colors with tft array 26.
This black matrix" 23 generally is made up of chromium and compound thereof or black resin, and its optical characteristics depends on its OD (Optical Density, optical density (OD)) value and reflectivity.OD represents the light shielding ability of black matrix", and reflectivity then refers to the light reflectance on black matrix" two sides.When black matrix" is applied to LCD, black matrix" surface and another surface relative with it of contiguous LCDs one side can be subjected to the irradiation of ambient light and LCD backlight respectively, can cause reflected light too much to produce the light interference problem if reflectivity is too high.
The OD value of black matrix" is high more and reflectivity is low more, then can make this liquid crystal display displays contrast height when it is applied to LCD, clear picture, on the contrary then display effect is poor.The black matrix" reflectivity of being made up of the black resin material is low, but the OD value is not high, and the black matrix" OD value of being made up of chromium and compound thereof is high, but reflectivity is too high.
A kind of colored filter that adopts the black matrix" of being made up of chromium and compound thereof is exposed in the United States Patent (USP) announced September 4 calendar year 2001 the 6th, 285, No. 424.See also Fig. 2, this colored filter 1 comprises a transparent glass substrate 2, a black matrix" 9, a protective seam 6 and a transparent electrode layer 7, and in addition, this colored filter 1 surface also is provided with a polaroid 8.This black matrix" 9 comprises one first anti-reflective film 3, one second anti-reflective film 4 and a light shield layer 5, and said elements is set in turn on this transparent glass substrate 2.
This first anti-reflective film 3 adopts different metallic compounds to make material with this second anti-reflective film 4, adopts zinc paste as first anti-reflective film 3, and then second anti-reflective film 4 adopts chromium oxide.This light shield layer 5 is made up of chromium, molybdenum, tungsten, nickel or germanium, it is different from the metal that this first anti-reflective film 3 and this second anti-reflective film 4 are adopted, the thickness of this first anti-reflective film 3 and second anti-reflective film 4 is preferably 20～60nm, and the thickness of this light shield layer 5 is preferably 50～150nm.
This patented technology is to utilize first anti-reflective film 3, second anti-reflective film 4 and light shield layer 5 each surperficial reflected light to interfere the principle that disappears mutually to reduce reflectivity, can effectively reduce the light reflectance that enters, passes through transparent glass substrate 2 from LCDs one side, but, because the light shield layer 5 of this colored filter 1 is made up of metals such as chromium, it is too high to light reflectance, when this colored filter 1 is applied to LCD, can reflection too much backlight of light shield layer 5 and produce interference phenomenon makes the display effect of this LCD be affected.
[summary of the invention]
In order to overcome prior art liquid crystal indicator inner black matrix, the invention provides a kind of liquid crystal indicator low to reflectivity backlight to the too high defective of reflectivity backlight.
The technical scheme that technical solution problem of the present invention is adopted is: a liquid crystal indicator is provided, it comprises one first basic unit, a black matrix", an ITO layer, a liquid crystal layer and one second basic unit, wherein, this first basic unit, black matrix", ITO layer, liquid crystal layer and second basic unit are provided with in regular turn.This liquid crystal indicator further comprises a body of wall, this body of wall be arranged at the ITO layer to should the black matrix" region, between this ITO layer and second basic unit.
In addition, this liquid crystal indicator also comprises an interval body, and this body of wall and this interval body all adopt resin material.
Compare with prior art, the present invention has the following advantages: liquid crystal indicator inner black matrix one side of the present invention has a body of wall, and this body of wall can block a part of light, thereby this black matrix" OD value is improved.
In addition, because this body of wall adopts resin material, so can reduce the reflected light of the black matrix area that adopts metal materials such as chromium, can effectively reduce reflection backlight, therefore the demonstration contrast of liquid crystal indicator of the present invention is higher, and this resin body of wall is residual forming when making this interval body, need not increase cost and easy to make.
[description of drawings]
Fig. 1 is a prior art liquid crystal indicator synoptic diagram.
Fig. 2 is a prior art colored filter synoptic diagram.
Fig. 3 is the three-dimensional exploded view of liquid crystal indicator first embodiment of the present invention.
Fig. 4 is the cut-open view of Fig. 3 along the IV-IV direction.
Fig. 5 is the cut-open view of Fig. 3 along the V-V direction.
Fig. 6 is the three-dimensional exploded view of liquid crystal indicator second embodiment of the present invention.
Fig. 7 is the cut-open view of Fig. 6 along the VII-VII direction.
Fig. 8 is the cut-open view of Fig. 6 along the VIII-VIII direction.
[embodiment]
Please consulting Fig. 3 and Fig. 4 together, is respectively the three-dimensional exploded view of liquid crystal indicator first embodiment of the present invention and Fig. 3 cut-open view along the IV-IV direction.This liquid crystal indicator 30 comprises first basic unit 34 and second basic unit 37, fills a liquid crystal layer 35, the second basic units 37 bottom surface tools, one tft array 36 therebetween.First basic unit 34 and the dyed layer 32 on it, black matrix" 33 and ITO layer 31 common formation colored filter (indicating).This black matrix" 33 comprises an anti-reflecting layer 332 and a light shield layer 333, the anti-reflecting layer 332 of this black matrix" 33 and light shield layer 333 are set in turn in this first basic unit 34, wherein, this anti-reflecting layer 332 comprises first rete 3321 and second rete 3322 is set in turn in this first basic unit 34, and the refractive index of this second rete 3322 is less than the refractive index of this first rete 3321.This second rete 3322 is mainly by chromium oxide (CrO
X, X=1,2,3......) material is made, and its thickness is 20～60nm; This first rete 3321 is mainly by chromium nitride (CrN
Y, Y=1,2,3......) material is made, and its thickness is 20～100nm.This light shield layer 333 comprises a chromium, molybdenum, tungsten or nickel metal at least, and its refractive index is low than this first rete 3321.
This black matrix" 33 is the distribution of ranks shape and forms many grid in this first basic unit 34, (R, G B), make the alternately setting in this first basic unit 34 of itself and black matrix" 33 to the coloring units of repetition filled coloring layer 32 in it.This black matrix" 33 and the uniform ITO layer 31 of this dyed layer 32 surface coverage one thickness, because of these black matrix" 33 thickness are thin than this dyed layer 32, therefore, the ITO of these black matrix" 33 regions surface forms the ranks shape groove (not indicating) of a correspondence.Tool interval body 38 supports this first basic unit 34 and second basic units 37 on the ITO layer 31 of these black matrix" 33 row and column infalls, makes the thickness of this liquid crystal layer 35 average, and makes this liquid crystal indicator 30 can not be subjected to the external force extruding and subside.This interval body 38 can be arranged at some black matrix" 33 row and column infall, and other black matrix" 33 row and column infalls then spacer-free 38 are provided with.This interval body 38 is a column, is to be made by the light sensitive black resin, and the one end connects ITO layer 31, and the other end connects tft array 36.
Please consult Fig. 5 together, cover a body of wall 39 on the ITO layer 31 of the ranks shape groove of these black matrix" 33 regions, and this place's body of wall 39 and ITO layer 31 other zone flush.These body of wall 39 height are highly low than this interval body 38, and its material is the photonasty dyeing resin, as black resin.Because the light reflectivity of resin material is low, therefore this body of wall 39 can reduce the reflection backlight of these black matrix" 33 1 sides, simultaneously because this body of wall can absorb the light that a part incides this black matrix" 33, therefore can strengthen the light shielding ability in these black matrix" 33 zones, and then improve the contrast of this liquid crystal indicator 30.
This body of wall 39 is residual forming when making this interval body 38.Because when making interval body 38 be prior to ITO layer 31 on rotation cover a photosensitive resin, utilize a mask exposure again, and remove unwanted resin and obtain interval body 38, so can do insufficient exposure to the resin of black matrix" 33 tops, then can obtain body of wall 39, and the difference of control depth of exposure then can obtain the body of wall 39 of differing heights.
Please consulting Fig. 6 and Fig. 7 together, is respectively the three-dimensional exploded view of liquid crystal indicator second embodiment of the present invention and Fig. 6 cut-open view along the VII-VII direction.This liquid crystal indicator 40 comprises first basic unit 44 and second basic unit 47, fills a liquid crystal layer 45, the second basic units 47 bottom surface tools, one tft array 46 therebetween.First basic unit 44 and the dyed layer 42 on it, black matrix" 43 and ITO layer 41 common formation colored filter (indicating).This black matrix" 43 is to make with dyeing resin, this resin is photosensitive resin or hotness resin, it is the distribution of ranks shape and forms many grid in this first basic unit 44, repeat the coloring units (R of filled coloring layer 42 in it, G B), makes coloring units (R, G B) alternately is provided with in this first basic unit 44 with black matrix" 43.This black matrix" 43 and this dyed layer 42 surface coverage one ITO layer 41, this ITO laminar surface is smooth.These black matrix" 43 row and column infall tool interval bodies 48, this interval body 48 supports this first basic unit 44 and second basic unit 47, and its alternative is arranged at some black matrix" 43 row and column infall.This interval body 48 is a column, is by the photonasty dyeing resin, makes as black resin, and the one end connects ITO layer 41, and the other end connects tft array 46.
Please consult Fig. 8 together, the ITO layer 41 of these black matrix" 43 regions covers a body of wall 49, and it is the ranks shape on ITO layer 41 surface arranges, and is higher than this ITO layer 41 surfaces.This this interval body 48 of body of wall 49 aspect ratios is highly low, and its material is the photonasty dyeing resin, as black resin.Because this body of wall can absorb the light that a part incides this black matrix" 43, therefore can strengthen the light shielding ability in these black matrix" 43 zones, and then improve the contrast of this liquid crystal indicator 40.
Certainly, this black matrix" 33 and 43 can be clathrate and is arranged in this first basic unit 34 and 44; This body of wall 39 and 49, this interval body 38 and 48 can be made by the hotness resin, and this hotness resin can be a dyeing resin; This liquid crystal indicator 30 and 40 also can not need interval body 38 and 48, then this body of wall 39 or 49 be directly on ITO layer 31 or 41 rotation cover a photosensitive resin, utilize a mask exposure again, keep the resin of black matrix" 33 or 43 regions and obtain; This liquid crystal indicator 30 and 40 also can not need ITO layer 31 or 41, maybe this ITO layer 31 or 41 is replaced with protective seam or both alignment layers; This body of wall 39 and 49 can partly cover this black matrix" 33 and 43.
Claims (9)
1. liquid crystal indicator, it comprises one first basic unit, a black matrix", an ITO layer, a liquid crystal layer and one second basic unit, wherein, this first basic unit, black matrix", ITO layer, liquid crystal layer and second basic unit are provided with in regular turn, it is characterized in that: this liquid crystal indicator further comprises a body of wall, this body of wall be arranged at the ITO layer to should the black matrix" region, between this ITO layer and second basic unit.
2. liquid crystal indicator as claimed in claim 1 is characterized in that: this black matrix" is clathrate or the ranks shape is arranged in this first substrate surface.
3. liquid crystal indicator as claimed in claim 2 is characterized in that: this liquid crystal indicator comprises that also one is positioned at the interval body of this black matrix" ranks infall, and this interval body is a column, and it supports this first basic unit and second basic unit.
4. liquid crystal indicator as claimed in claim 3 is characterized in that: this body of wall height is low than this spacer height.
5. liquid crystal indicator as claimed in claim 4 is characterized in that: this body of wall and this interval body are to make with sensitization or hotness dyeing resin.
6. liquid crystal indicator as claimed in claim 3 is characterized in that: the ITO laminar surface of this black matrix" region forms a groove, and this body of wall is filled this groove, and flushes with other zone of this ITO.
7. liquid crystal indicator as claimed in claim 2 is characterized in that: this black matrix" comprises that one is arranged at anti-reflecting layer and the light shield layer in this first basic unit in regular turn, and this light shield layer material comprises a kind of in chromium, molybdenum, tungsten or the nickel metal at least.
8. liquid crystal indicator as claimed in claim 7, it is characterized in that: this liquid crystal indicator also comprises a dyed layer, a plurality of coloring units that it comprises and this black matrix" alternately is provided with in this first basic unit, this black matrix" thickness is than this dyed layer thin thickness, has a groove in this black matrix area, this body of wall is filled this groove, and flushes with other parts.
9. liquid crystal indicator as claimed in claim 2; it is characterized in that: this liquid crystal indicator also comprises a dyed layer; a plurality of coloring units that it comprises and this black matrix" alternately is provided with in this first basic unit; this ITO is placed on this dyed layer and this black matrix" surface; one protective seam or both alignment layers are arranged on this ITO layer; this body of wall is positioned at this protective seam or alignment layer surface, and is higher than protective seam or both alignment layers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031142834A CN1322360C (en) | 2003-04-17 | 2003-04-17 | Liquid crystal display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031142834A CN1322360C (en) | 2003-04-17 | 2003-04-17 | Liquid crystal display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1538210A CN1538210A (en) | 2004-10-20 |
| CN1322360C true CN1322360C (en) | 2007-06-20 |
Family
ID=34320161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031142834A Ceased CN1322360C (en) | 2003-04-17 | 2003-04-17 | Liquid crystal display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1322360C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI672542B (en) * | 2018-04-17 | 2019-09-21 | 立景光電股份有限公司 | Display panel |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105137516B (en) * | 2015-10-21 | 2017-06-09 | 京东方科技集团股份有限公司 | A kind of colored filter and preparation method thereof and display master blank |
| CN106773400A (en) * | 2016-12-28 | 2017-05-31 | 深圳市华星光电技术有限公司 | The preparation method of liquid crystal display panel and its black dottle pin layer |
| CN110673383A (en) * | 2019-09-24 | 2020-01-10 | 深圳市华星光电技术有限公司 | Display panel and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6285424B1 (en) * | 1997-11-07 | 2001-09-04 | Sumitomo Chemical Company, Limited | Black mask, color filter and liquid crystal display |
| US6424402B1 (en) * | 1999-07-05 | 2002-07-23 | Sharp Kabushiki Kaisha | Liquid crystal display and method for manufacturing the same |
| CN1409667A (en) * | 1999-10-29 | 2003-04-09 | 3M创新有限公司 | Donor sheet and color filter, and organic EL device and method for producing them |
| JP2003107449A (en) * | 2001-09-28 | 2003-04-09 | Andes Intekku:Kk | Internal diffusion and reflection type color filter and internal diffusion and reflection type color liquid crystal display device |
-
2003
- 2003-04-17 CN CNB031142834A patent/CN1322360C/en not_active Ceased
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6285424B1 (en) * | 1997-11-07 | 2001-09-04 | Sumitomo Chemical Company, Limited | Black mask, color filter and liquid crystal display |
| US6424402B1 (en) * | 1999-07-05 | 2002-07-23 | Sharp Kabushiki Kaisha | Liquid crystal display and method for manufacturing the same |
| CN1409667A (en) * | 1999-10-29 | 2003-04-09 | 3M创新有限公司 | Donor sheet and color filter, and organic EL device and method for producing them |
| JP2003107449A (en) * | 2001-09-28 | 2003-04-09 | Andes Intekku:Kk | Internal diffusion and reflection type color filter and internal diffusion and reflection type color liquid crystal display device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI672542B (en) * | 2018-04-17 | 2019-09-21 | 立景光電股份有限公司 | Display panel |
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| Publication number | Publication date |
|---|---|
| CN1538210A (en) | 2004-10-20 |
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