CN1727951A - Semi permeable type liquid crystal display, and producing method - Google Patents
Semi permeable type liquid crystal display, and producing method Download PDFInfo
- Publication number
- CN1727951A CN1727951A CN 200410040336 CN200410040336A CN1727951A CN 1727951 A CN1727951 A CN 1727951A CN 200410040336 CN200410040336 CN 200410040336 CN 200410040336 A CN200410040336 A CN 200410040336A CN 1727951 A CN1727951 A CN 1727951A
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- colour filter
- reflectance coating
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- opening
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Abstract
A liquid crystal display of semi - transmission type sets reflection film ( RF ) with opening, colour filtering film ( FF ) and insulation layer in sequence on bottom transparent base plate or sets CFF, RF and insulation layer in sequence on bottom transparent base plate . Its preparing method includes cutting out the opening on RF first before ITO pattern is prepared, then preparing CFF with area less than area of opening on RF or preparing CFF first, than cutting out opening on RF with area greater than area of FCC at each opening of RF.
Description
Technical field
The present invention relates to be used for the device or the device of light intensity, color, phase place, polarization or direction, be specifically related to semi-transmission-type LCD and preparation method thereof from the control arbitrary source based on liquid crystal.
Background technology
That existing LCD has substantially is reflective, three kinds of transmission-type and semi-transmission-types.The version that the semi-transmission-type LCD generally adopts is the reflectance coating open-type, and the semi-transmission-type LCD of this version can be used in bright or dim place.Under bright light, need not backlight, good contrast; Under dim light, use backlight, contrast might as well, especially by changing the size of reflectance coating opening, can adjust transmissivity and reflectivity, thereby the effect of balanced to a certain extent transmission and reflection, but, the transmissivity of semi-transmission-type LCD and reflectivity are the performance parameters of a pair of mutual restriction, promptly require transmissivity high or bright in luster, and its reflectivity is just necessarily lower, thereby cause the reflex time poor contrast, and require the reflectivity height, and the colour filter film just can not be too thick, thus color variation when making transmission.
The method that is used to improve the effect of colour liquid crystal display device at present has two kinds.Wherein a kind of colour filter film that is to use transmission-type, with the reflectance coating opening that places above the colour filter film, transmission region promptly is set on reflectance coating, and this method is behind the colour filter film production, and the face homogeneity is bad, in addition in manufacturing process, the colour filter film is not only polluted easily, and yield rate is not high, and in reflectance coating opening process, the solvent that opening is used can impact the colourity of colour filter film, shows that vividness descends thereby make; Another kind is conventional method, also be to use the colour filter film of transmission-type, with the reflectance coating opening that places below the colour filter film, the area of colour filter film is slightly larger than the aperture area of reflectance coating, and the colour filter film of this method is a part cover glass substrate, be difficult to guarantee the homogeneity that shows during making, and the area of colour filter film is more bigger than the aperture area of reflectance coating, and reflectivity is descended, and the colour filter film has covered opening, also can reduce transmissivity, make display color darker.
Summary of the invention
The technical matters that the present invention will solve is, a kind of semi-transmission-type LCD is provided, its contrast and brightness height, and also high and transmissivity of reflectivity and color show and can adjust.
Another technical matters that the present invention will solve is, a kind of method for making of semi-transmission-type LCD is provided, it can significantly improve LCD contrast and brightness, can also improve reflectivity, adjust transmissivity and color shows.
For semi-transmission-type LCD of the present invention, above-mentioned technical matters is solved like this: this semi-transmission-type LCD comprises polaroid successively, goes up transparency carrier, goes up nesa coating from external light source toward the backlight direction, liquid crystal, nesa coating down, comprises polaroid and following transparency carrier down successively from backlight toward outside light source direction;
Descending on the transparency carrier is reflectance coating, colour filter film, covering colour filter film that opening is arranged and the insulation course that is coated with following nesa coating on it successively, each opening part at reflectance coating, the colour filter membrane portions covers the reflectance coating opening, and the colour filter membrane area is less than the reflectance coating aperture area; Perhaps
Descending on the transparency carrier is colour filter film, reflectance coating, covering colour filter film and reflectance coating and the insulation course that is coated with following nesa coating on it successively, each opening part at reflectance coating, the colour filter membrane portions covers the reflectance coating opening, and the colour filter membrane area is less than the reflectance coating aperture area.
As a kind of improvement of the present invention, the color that described colour filter film is showed comprises three kinds of Essential colour of red, green, blue.
As another kind of improvement the of the present invention, described reflectance coating can be aluminium film, silverskin, golden film, chromium film, platinum film, also can be the alloy film that comprises aluminium, silver, gold, chromium, platinum.
Method for making for semi-transmission-type LCD of the present invention, above-mentioned technical matters is solved like this: this method for making difference with the prior art only relates in the making of insulation course, reflectance coating and the colour filter film between nesa coating and the following transparency carrier down, and the area that especially relates to the colour filter film is slightly less than the opening of reflectance coating.
The method for making of this semi-transmission-type LCD may further comprise the steps successively:
ITO design producing, liquid crystal alignment layer making, liquid crystal alignment layer friction treatment, liquid crystal cell are assembled, cut and are split grain, perfusion liquid crystal and polaroid and attach, and it is characterized in that:
Before step ITO design producing, following steps are arranged successively:
1, plating reflectance coating on the transparency carrier down;
2, reflectance coating is scribed opening;
3, coating colour filter printing ink on reflectance coating exposes, develops, and making part covering reflectance coating opening is the colour filter film of its area less than the reflectance coating aperture area;
4, make on the layer in step 3, the coating transparent insulating layer on transparent insulating layer, plates nesa coating down more earlier.
Perhaps
Before step ITO design producing, following steps are arranged successively:
1, coating colour filter printing ink on transparency carrier exposes, develops and make the colour filter film;
2, on the colour filter film, plate reflectance coating;
3, reflectance coating is scribed opening, at each opening part of reflectance coating, the colour filter membrane portions covers the reflectance coating opening, and the colour filter membrane area is less than the reflectance coating aperture area;
4, make on the layer in step 3, the coating transparent insulating layer on transparent insulating layer, plates nesa coating down more earlier.
The area of colour filter film is less than the aperture area of reflectance coating, do not make the colourity that requires though reduced some at reflex time,, can improve requirement significantly than higher contrast ratio and brightness.
As a kind of improvement of the present invention, assembling is during liquid crystal cell, and the thickness setting of the black matrix" printing ink that stops light to be revealed is thinner than color filter film printing ink, can avoid because of the colour filter film be the demonstration problem of non-uniform that part cover glass substrate causes.
The present invention is novel, improves practically, be compared with the prior art, the making step of increase seldom, the effect uniqueness of generation.Because the area of colour filter film is slightly less than the area of reflectance coating opening, the contrast and the brightness that can improve LCD significantly.Promptly need not be backlight under bright light, can realize the white and black displays of high-contrast, and use is backlight under dim light, can show bright-coloured color.Because colour filter film just part covers reflectance coating, can improve reflectivity,, can also adjust transmissivity and color and show by adjusting the area of colour filter film.
Description of drawings
Below in conjunction with the described embodiment of accompanying drawing semi-transmission-type LCD of the present invention and preparation method thereof is described in further detail.
Accompanying drawing is the LCD method for making synoptic diagram of two kinds of embodiments of the present invention.
The step 1 of embodiment one is to plate reflectance coating on the transparency carrier down among the figure;
The step 2 of embodiment one is that reflectance coating is scribed opening;
The step 3 of embodiment one is to make part on reflectance coating to cover the reflectance coating opening be the colour filter film of its area less than the reflectance coating aperture area;
The step 1 of embodiment two is to make the colour filter film on transparency carrier;
The step 2 of embodiment two is to plate reflectance coating on the colour filter film;
The step 3 of embodiment two is that reflectance coating is scribed opening, and at each opening part of reflectance coating, the colour filter membrane portions covers the reflectance coating opening, and the colour filter membrane area is less than the reflectance coating aperture area;
The step 4 of embodiment one, two is to make on the layer in step 3, and the coating transparent insulating layer on transparent insulating layer, plates nesa coating down more earlier;
The step 5 of embodiment one, two is to make LCD.
Embodiment
Embodiment one
This semi-transmission-type LCD, comprise polaroid 10, last transparency carrier 20 from external light source toward the backlight direction successively, go up nesa coating 30, liquid crystal 40, descend nesa coating 50, comprise down polaroid 100 and following transparency carrier 90 successively from backlight toward outside light source direction, be reflectance coating 80, colour filter film 70 that opening 120 is arranged successively on transparency carrier 90 down, cover colour filter film 70 and be coated with on it under the insulation course 60 of nesa coating 50.At each opening 120 place of reflectance coating 80, colour filter film 70 parts cover reflectance coating opening 120, and colour filter film 70 areas are less than reflectance coating opening 120 areas.
Described reflectance coating 80 is aluminium films.
The color that described colour filter film 70 is showed comprises three kinds of Essential colour, and is promptly red, green and blue, only be located at reflectance coating 80 opening parts, and area is slightly less than reflectance coating opening 120.Size to colour filter film 70 areas designs, transmissivity in the time of can selecting the LCD transmission and display color.
Around the described colour filter film 70 black matrix" 130 is arranged, its THICKNESS CONTROL is at the thin thickness than colour filter film 70.
Seal with packaging plastic 110 around the described liquid crystal 40.
The method for making of this display may further comprise the steps successively:
Conductive coated glass ITO design producing, the making of liquid crystal 40 oriented layers, liquid crystal 40 oriented layer friction treatment, liquid crystal cell are assembled, cut and are split grain, perfusion liquid crystal 40 and polaroid 100,10 and attach.
Before step conductive coated glass ITO design producing, following steps are arranged successively:
1, on following transparency carrier 90, adopts the vacuum splashing and plating method reflectance coating 80 of aluminizing;
2, adopt engraving method to scribe opening 120 to reflectance coating 80;
3, adopt spin coater spin coating pigment-dispersing type colour filter printing ink at each opening 120 place of reflectance coating 80, expose, develop and make part to cover reflectance coating opening 120 be the colour filter film 70 of its area less than reflectance coating opening 120 areas, colour filter film 70 is on reflectance coating 80;
4, adopt spin coater coating transparent insulating layer 60 on colour filter film 70, transparent insulating layer 60 all covers colour filter film 70 and reflectance coating 80, and on transparent insulating layer 60, plating is nesa coating 50 down again.
Embodiment two
This semi-transmission-type LCD, comprise polaroid 10, last transparency carrier 20 from external light source toward the backlight direction successively, go up nesa coating 30, liquid crystal 40, descend nesa coating 50, comprise polaroid 100 and following transparency carrier 90 down from backlight toward outside light source direction successively, on following transparency carrier 90, be colour filter film 70 successively, reflectance coating 80, covering colour filter film 70 and the reflectance coating 80 of opening 120 arranged and be coated with the insulation course 60 of nesa coating 50 down on it.
At each opening 120 place of reflectance coating, colour filter film 70 parts cover reflectance coating opening 120, and colour filter film 70 areas are less than reflectance coating opening 120 areas.
Described reflectance coating 80 is silverskin.
The color that described colour filter film 70 is showed comprises three kinds of Essential colour, and is promptly red, green and blue, only be located at reflectance coating 80 opening parts, and area is slightly less than reflectance coating opening 120.Size to colour filter film 70 areas designs, transmissivity in the time of can selecting the LCD transmission and display color.
Around the described colour filter film 70 black matrix" 130 is arranged, its THICKNESS CONTROL is at the thin thickness than colour filter film 70.
Seal with packaging plastic 110 around the described liquid crystal 40.
The method for making of this display may further comprise the steps successively:
Conductive coated glass ITO design producing, the making of liquid crystal 40 oriented layers, liquid crystal 40 oriented layer friction treatment, liquid crystal cell are assembled, cut and are split grain, perfusion liquid crystal 40 and polaroid 100,10 and attach.
Before step conductive coated glass ITO design producing, following steps are arranged successively:
1, adopting spin coater spin coating pigment-dispersing type colour filter printing ink on the transparency carrier 90 down, exposes, develops and make colour filter film 70;
2, adopt the vacuum splashing and plating method reflectance coating 80 of aluminizing on colour filter film 70, reflectance coating 80 is on colour filter film 70;
3, adopt engraving method to scribe opening 120 to reflectance coating 80, at each opening 120 place of reflectance coating, colour filter film 70 parts cover reflectance coating opening 120, and colour filter film 70 areas are less than reflectance coating opening 120 areas;
4, adopt press printing that the transparent insulating layer 60 of smooth function is arranged on reflectance coating 80, transparent insulating layer 60 all covers colour filter film 70 and reflectance coating 80, and on transparent insulating layer 60, plating is nesa coating 50 down again.
More than listed embodiment be intended to clearly illustrate design of the present invention and technical scheme, enforcement of the present invention is not limited thereto.Any technical scheme based on the present invention design, and need not carry out the simple deduction or replace of creative work perhaps is applied to design of the present invention other LCD structure situation, all belongs to enforcement category of the present invention.
Claims (10)
1. semi-transmission-type LCD, comprise polaroid, last transparency carrier from external light source toward the backlight direction successively, go up nesa coating, liquid crystal, descend nesa coating, comprise polaroid and following transparency carrier down successively from the past outside light source direction of backlight, it is characterized in that:
Descending on the transparency carrier is reflectance coating, colour filter film, covering colour filter film that opening is arranged and the insulation course that is coated with following nesa coating on it successively, each opening part at reflectance coating, the colour filter membrane portions covers the reflectance coating opening, and the colour filter membrane area is less than the reflectance coating aperture area; Perhaps
Descending on the transparency carrier is colour filter film, reflectance coating, covering colour filter film and reflectance coating and the insulation course that is coated with following nesa coating on it successively, each opening part at reflectance coating, the colour filter membrane portions covers the reflectance coating opening, and the colour filter membrane area is less than the reflectance coating aperture area.
2. according to the described semi-transmission-type LCD of claim 1, it is characterized in that: the color that described colour filter film is showed comprises three kinds of Essential colour of red, green, blue.
3. according to the described semi-transmission-type LCD of claim 1, it is characterized in that: described reflectance coating is aluminium film, silverskin, golden film, chromium film, platinum film, or comprises the alloy film of aluminium, silver, gold, chromium, platinum.
4. the method for making of a semi-transmission-type LCD may further comprise the steps successively:
ITO design producing, liquid crystal alignment layer making, liquid crystal alignment layer friction treatment, liquid crystal cell are assembled, cut and are split grain, perfusion liquid crystal and polaroid and attach, and it is characterized in that:
Before step ITO design producing, following steps are arranged successively:
11 are plating reflectance coating on the transparency carrier down;
12 pairs of reflectance coatings are scribed opening;
13 are coated with colour filter printing ink on reflectance coating, expose, develop, and making part covering reflectance coating opening is the colour filter film of its area less than the reflectance coating aperture area;
14 make on the layer in step 13, coating transparent insulating layer earlier, and on transparent insulating layer, plating is nesa coating down again;
Perhaps
Before step ITO design producing, following steps are arranged successively:
21 are coated with colour filter printing ink on transparency carrier, expose, develop and make the colour filter film;
22 plate reflectance coating on the colour filter film;
23 pairs of reflectance coatings are scribed opening, and at each opening part of reflectance coating, the colour filter membrane portions covers the reflectance coating opening, and the colour filter membrane area is less than the reflectance coating aperture area;
24, make on the layer in step 23, the coating transparent insulating layer on transparent insulating layer, plates nesa coating down more earlier.
5. according to the method for making of the described semi-transmission-type LCD of claim 4, it is characterized in that: the thickness of setting colour filter film printing ink is thicker than black matrix" printing ink.
6. according to the method for making of the described semi-transmission-type LCD of claim 4, it is characterized in that: described plating reflectance coating is to adopt vacuum splashing and plating method plated film.
7. according to the method for making of the described semi-transmission-type LCD of claim 4, it is characterized in that: described reflectance coating is scribed opening is to adopt the engraving method opening.
8. according to the method for making of the described semi-transmission-type LCD of claim 4, it is characterized in that: the described colour filter printing ink that is coated with on reflectance coating is to adopt the spin coater spin coating, or adopts press printing.
9. according to the method for making of the described semi-transmission-type LCD of claim 4, it is characterized in that: the described layer of cloth that is coated with is to adopt the spin coater spin coating.
10. according to the method for making of the described semi-transmission-type LCD of claim 4, it is characterized in that: described plating nesa coating is to adopt vacuum splashing and plating method plated film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100403367A CN100429569C (en) | 2004-07-27 | 2004-07-27 | Semi permeable type liquid crystal display, and producing method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100403367A CN100429569C (en) | 2004-07-27 | 2004-07-27 | Semi permeable type liquid crystal display, and producing method |
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| Publication Number | Publication Date |
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| CN1727951A true CN1727951A (en) | 2006-02-01 |
| CN100429569C CN100429569C (en) | 2008-10-29 |
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| CNB2004100403367A Expired - Fee Related CN100429569C (en) | 2004-07-27 | 2004-07-27 | Semi permeable type liquid crystal display, and producing method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100442118C (en) * | 2006-09-30 | 2008-12-10 | 信利半导体有限公司 | Semi-transmission type liquid crystal display device and method for making the same |
| CN101303469B (en) * | 2007-05-09 | 2010-10-06 | 比亚迪股份有限公司 | Colored filter, manufacturing method thereof and LCD screen containing the optical filter |
| CN108700769A (en) * | 2016-02-23 | 2018-10-23 | 住友化学株式会社 | The manufacturing method of display panel |
| CN109518138A (en) * | 2018-11-30 | 2019-03-26 | 西安呱牛信息技术有限公司 | A kind of coating process of liquid crystal display |
| CN115167029A (en) * | 2022-07-01 | 2022-10-11 | Tcl华星光电技术有限公司 | Display module and manufacturing method thereof |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW373094B (en) * | 1994-11-14 | 1999-11-01 | Hitachi Device Engineering Corp | Liquid crystal display device having a uniform liquid crystal layer thickness |
| JP3482825B2 (en) * | 1997-07-30 | 2004-01-06 | 凸版印刷株式会社 | Color filter substrate for reflective liquid crystal display |
| KR100312328B1 (en) * | 1999-08-06 | 2001-11-03 | 구본준, 론 위라하디락사 | Transflective liquid crystal display device |
| JP2001174798A (en) * | 1999-12-14 | 2001-06-29 | Alps Electric Co Ltd | Color filter substrate for reflection type liquid crystal display device and reflection type liquid crystal display device |
| JP3723511B2 (en) * | 2001-03-07 | 2005-12-07 | シャープ株式会社 | Reflective / transmissive color liquid crystal display |
| JP3610967B2 (en) * | 2001-07-27 | 2005-01-19 | セイコーエプソン株式会社 | Electro-optical device, color filter substrate, and electronic device |
| CN2606372Y (en) * | 2001-10-24 | 2004-03-10 | 精工爱普生株式会社 | Liquid crystal display device and electronic apparatus |
| JP4042540B2 (en) * | 2002-11-18 | 2008-02-06 | セイコーエプソン株式会社 | Color filter substrate, manufacturing method thereof, liquid crystal display panel, and electronic device |
-
2004
- 2004-07-27 CN CNB2004100403367A patent/CN100429569C/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100442118C (en) * | 2006-09-30 | 2008-12-10 | 信利半导体有限公司 | Semi-transmission type liquid crystal display device and method for making the same |
| CN101303469B (en) * | 2007-05-09 | 2010-10-06 | 比亚迪股份有限公司 | Colored filter, manufacturing method thereof and LCD screen containing the optical filter |
| CN108700769A (en) * | 2016-02-23 | 2018-10-23 | 住友化学株式会社 | The manufacturing method of display panel |
| CN109518138A (en) * | 2018-11-30 | 2019-03-26 | 西安呱牛信息技术有限公司 | A kind of coating process of liquid crystal display |
| CN115167029A (en) * | 2022-07-01 | 2022-10-11 | Tcl华星光电技术有限公司 | Display module and manufacturing method thereof |
| CN115167029B (en) * | 2022-07-01 | 2023-11-28 | Tcl华星光电技术有限公司 | Display module and manufacturing method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100429569C (en) | 2008-10-29 |
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Effective date of registration: 20150910 Address after: 518119 Guangdong province Shenzhen City Dapeng new Kwai town Yanan Road No. 1 building experimental Byd Co Patentee after: Shenzhen BYD Electronic Component Co., Ltd. Address before: Kwai Chung town Yanan Road, BYD Industrial Park in Longgang District of Shenzhen City, Guangdong province 518119 Patentee before: Biyadi Co., Ltd. |
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Granted publication date: 20081029 Termination date: 20160727 |