CN2814453Y - Reflective colour liquid crystal display device - Google Patents
Reflective colour liquid crystal display device Download PDFInfo
- Publication number
- CN2814453Y CN2814453Y CN 200520035155 CN200520035155U CN2814453Y CN 2814453 Y CN2814453 Y CN 2814453Y CN 200520035155 CN200520035155 CN 200520035155 CN 200520035155 U CN200520035155 U CN 200520035155U CN 2814453 Y CN2814453 Y CN 2814453Y
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- liquid crystal
- film
- crystal display
- transparency carrier
- color liquid
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Abstract
The utility model discloses a reflective color liquid crystal display device which comprises a first transparent basal plate and a second transparent basal plate which are arranged face to face mutually and are provided with transparent electrodes, wherein liquid crystal is sealed between the first transparent basal plate and the second transparent basal plate, a surface polaroid is attached on a plate surface which is arranged at the outer side of the first transparent basal plate and a brightening multilayer film and a metal thin film which have reflection function are attached on a plate surface which is arranged at the outer side of the second transparent basal plate in sequence. The utility model adopts an overlapped film of the brightening multilayer film and the metal thin film to be acted as a reflective negative film and has the advantages of simple structure, simple production and high reflectivity. At the same time, the surface polaroid which has the effect of spot light is adopted, and the limited reflected light is concentrated in a certain angular field of view, so the reflective effect is notably improved.
Description
[technical field]
The utility model relates to a kind of LCD, relates in particular to a kind of reflection horizon and is produced on the outer reflection type color liquid crystal display of transparency carrier.
[background technology]
Reflective type liquid crystal display device has low-power consumption, under strong surround lighting clear advantages of higher, therefore attract people to go exploitation always.Usually, reflection type color liquid crystal display has following structure: comprise two electrode ito glasses, an electrode is common ito glass, an electrode is the ito glass that contains the colour filter film, the helically twisted nematic crystal that between electrode, has dielectric anisotropy, have the polaroid that strengthens reflection function, the reflection horizon that has reflect ambient light in addition in the outside of top glass substrate.At present, reflective type liquid crystal display device can be divided into following four types according to the difference in reflection horizon:
(1) configuration scattered reflection electrode behind the transparency carrier.
(2) configuration diffusive reflective layer in the transparency carrier.
(3) dispose light absorbing zone behind the liquid crystal layer.
(4) configuration specular layer in the transparency carrier.
Reflection type color liquid crystal display for configuration scattered reflection electrode behind traditional transparency carrier, have following defective: the traditional reflective electrode is mirror metal film or irreflexive metallic film, do electrode because adopt metallic film, just need be photo-etched into a lot of tiny strip shaped electric poles, therefore make difficulty, in etching process, form pin hole easily simultaneously, cause light leak, product quality is descended.And if the direct reflection metallic film easily forms the distorting mirror effect, if irreflexive metallic film, because diffuse reflection causes reflected light to reduce in angular field of view, so reflecting brightness reduces.And making diffuse reflector on metallic film must be by accurate exposure manufacture craft, and yields is low.
[summary of the invention]
Fundamental purpose of the present utility model is exactly in order to solve problems of the prior art, and a kind of reflection type color liquid crystal display simple, simple in structure, that reflecting brightness is high of making is provided.
Of the present utility model time a purpose provides a kind of reflection type color liquid crystal display, in certain angular field of view, reflective light intensity is further increased.
For achieving the above object, a kind of reflection type color liquid crystal display that the utility model proposes, comprise opposed facing first transparency carrier and second transparency carrier that is formed with transparency electrode, between first transparency carrier and second transparency carrier, be sealed with liquid crystal, outer panel face at first transparency carrier is attached with the face polaroid, adheres to blast multilayer film and the metallic film with reflection function successively at the outer panel face of second transparency carrier.
Has the glue layer that is used for the second transparency carrier outer panel face that the blast multilayer film is pasted between the described blast multilayer film and second transparency carrier.
Preferably, the thickness of described metallic film is that 1000nm is to 2500nm.
Further improvement of the utility model is: be attached with rough surface refractor or asymmetric micro-len battle array light control film on described the polaroid.
The beneficial effects of the utility model are: 1) the present invention adopts film with reflection function and metallic film as the reflection horizon, film can adopt glue directly to be bonded on the normal transparent substrate, metallic films such as Al film or Ag film adopt vacuum steaming degree method to be plated on the film, metallic film does not need to do reflecting electrode, therefore complicated photoetching, development, technology such as harsh have not been needed, simplified technological process, therefore made simple.2) the blast multilayer film can significantly improve the utilization factor of light, can do full visual angle, comprehensive raising to overall brightness.3) in order to increase catoptrical intensity, the present invention has increased rough surface refractor or the asymmetric micro-len battle array light control film that one deck has light-focusing function on the face polaroid, limited reflected light is gathered certain limit, and therefore the light total intensity in certain angular field of view significantly increases.
Feature of the present utility model and advantage will be elaborated in conjunction with the accompanying drawings by embodiment.
[description of drawings]
Fig. 1 is the structural representation of a kind of embodiment of the present utility model;
Fig. 2 is the fundamental diagram of the LCD of Fig. 1.
[embodiment]
As shown in Figure 1, LCD comprises following structural sheet successively according to the incident direction of surround lighting: face polaroid 1, its surface has the functional layer of one deck optically focused effect, can be rough surface refractor or asymmetric micro-len battle array light control film.Be formed with first transparent substrates 2 of transparency electrode.The nematic crystal layer 3 of supertwist.The transparency electrode 4 of band colour filter film, colour filter film of this layer and transparency electrode can directly be produced on the transparent substrates, also can be coated on second transparent substrates 5.Second transparent substrates 5, its material can be cellulose triacetate, also can be other normal transparent substrate.Glue layer 6, blast multilayer film 7, it mainly acts on is the utilization factor that improves light, thereby the brightness of display is improved greatly, increased the reflection probability of display at reflective-mode, blast multilayer film 7 sticks on the lateral surface of second transparent substrates 5 by glue layer 6, blast multilayer film 7 can be common blast multilayer film (DBEF), also can be RP type brightness enhancement film (BEF-RP), the blast multilayer film of SUMITOMO CHEMICAL 3M company for example, it can further improve brightness.Multilayer film (MOF) technology is meant optical thin film compound about 1000 layers in less than 200 microns thickness.Metallic film 8 is preferably Al film or Ag film, and metallic film 8 adopts vacuum steaming degree method to be plated in the lateral surface of blast multilayer film 7, and thickness of coating is preferably 1000nm to 2500nm, and it mainly acts on is reflex.
In the present embodiment, jointly as the reflection horizon, metallic film 8 is not re-used as reflecting electrode by second transparent substrates 5, glue layer 6, blast multilayer film 7 and metallic film 8, has lacked complicated photoetching, development, technological process such as harsh, simplified technological process, therefore made simple.Cooperation is with 3M blast multilayer film, commercial multilayer film of SUMITOMO CHEMICAL 3M company for example, and these multilayer film prevent catoptrical loss just as one dam, the reflected light utilization factor that therefore can improve metallic film reaches more than 50%.On the other hand, these multilayer film have certain scattering process simultaneously, have therefore overcome the distorting mirror spinoff that the metallic film direct reflection causes.
Be illustrated in figure 2 as the principle of work of LCD, environment incident light 9 has part light to be reflected when passing through face polaroids 1 or absorbs, part light arrives blast multilayer film 7 and metallic film 8 by face polaroid 1, first transparency carrier 2, liquid crystal 3, second transparency electrode 5, and be reflected, when reflected light arrives face polaroid 1 with air interface, if there is not the film of light-focusing function, will form the reflected light 10 among Fig. 2, because last polaroid is different with the refraction coefficient of air interface, reflected light will be scattered, and causes the light total intensity in certain angular field of view to die down.Present embodiment is pasted rough surface refractor or the asymmetric micro-len battle array light control film that one deck has the optically focused effect on the surface of face polaroid 1, utilize the refraction action of some asymmetrical arcuation projectioies, change catoptrical direction, will form the reflected light 11 among Fig. 2, so just limited reflected light is gathered certain limit, therefore the light total intensity in certain angular field of view significantly increases.
In addition, the colour filter film can also be positioned at the medial surface of first transparency carrier.
The utility model adopts the overlapped film of blast multilayer film and metallic film as the reflection egative film, and is simple in structure, makes simple, and reflectivity height, adopt face polaroid simultaneously, limited reflected light is focused in certain angular field of view, improved reflecting effect significantly with optically focused effect.
Claims (8)
1. reflection type color liquid crystal display, comprise opposed facing first transparency carrier and second transparency carrier that is formed with transparency electrode, between first transparency carrier and second transparency carrier, be sealed with liquid crystal, outer panel face at first transparency carrier is attached with the face polaroid, it is characterized in that: the outer panel face at second transparency carrier adheres to blast multilayer film and the metallic film with reflection function successively.
2. reflection type color liquid crystal display as claimed in claim 1 is characterized in that: have the glue layer that is used for the second transparency carrier outer panel face that the blast multilayer film is pasted between the described blast multilayer film and second transparency carrier.
3. reflection type color liquid crystal display as claimed in claim 2 is characterized in that: described blast multilayer film RP type brightness enhancement film.
4. as each described reflection type color liquid crystal display in the claim 1 to 3, it is characterized in that: the thickness of described metallic film is that 1000nm is to 2500nm.
5. reflection type color liquid crystal display as claimed in claim 4 is characterized in that: the medial surface of described second transparency carrier also is formed with colour filter film and transparency electrode.
6. reflection type color liquid crystal display as claimed in claim 5 is characterized in that: described liquid crystal is the nematic crystal of supertwist.
7. reflection type color liquid crystal display as claimed in claim 4 is characterized in that: be attached with rough surface refractor or asymmetric micro-len battle array light control film on described the polaroid.
8. reflection type color liquid crystal display as claimed in claim 5 is characterized in that: be attached with rough surface refractor or asymmetric micro-len battle array light control film on described the polaroid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520035155 CN2814453Y (en) | 2005-08-09 | 2005-08-09 | Reflective colour liquid crystal display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520035155 CN2814453Y (en) | 2005-08-09 | 2005-08-09 | Reflective colour liquid crystal display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2814453Y true CN2814453Y (en) | 2006-09-06 |
Family
ID=36949540
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520035155 Expired - Lifetime CN2814453Y (en) | 2005-08-09 | 2005-08-09 | Reflective colour liquid crystal display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2814453Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108919554A (en) * | 2018-07-26 | 2018-11-30 | 京东方科技集团股份有限公司 | Reflection type display substrate and its manufacturing method, display panel |
| WO2024113079A1 (en) * | 2022-11-28 | 2024-06-06 | 京东方科技集团股份有限公司 | Display panel and display apparatus |
-
2005
- 2005-08-09 CN CN 200520035155 patent/CN2814453Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108919554A (en) * | 2018-07-26 | 2018-11-30 | 京东方科技集团股份有限公司 | Reflection type display substrate and its manufacturing method, display panel |
| CN108919554B (en) * | 2018-07-26 | 2022-08-26 | 京东方科技集团股份有限公司 | Reflective display substrate, manufacturing method thereof and display panel |
| WO2024113079A1 (en) * | 2022-11-28 | 2024-06-06 | 京东方科技集团股份有限公司 | Display panel and display apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20150809 Granted publication date: 20060906 |
|
| EXPY | Termination of patent right or utility model |