CN202267802U

CN202267802U - Bi-stable cholesteric liquid crystal display structure

Info

Publication number: CN202267802U
Application number: CN2011203611422U
Authority: CN
Inventors: 陶应娟
Original assignee: Tianma Microelectronics Co Ltd
Current assignee: Tianma Microelectronics Co Ltd
Priority date: 2011-09-23
Filing date: 2011-09-23
Publication date: 2012-06-06
Anticipated expiration: 2021-09-23

Abstract

The utility model belongs to the technical field of liquid crystal display, and particularly provides a bi-stable cholesteric liquid crystal display structure. The bi-stable cholesteric liquid crystal display structure comprises an upper substrate, a first conductive film and a first orientation layer orderly coated inside the upper substrate, and further comprises an anti-reflection/reflection-reducing functional layer disposed outside the upper substrate. The bi-stable cholesteric liquid crystal display structure provided by the utility model can increase the intrinsic reflectivity of displayer and decrease surface reflectivity, thereby enhancing the readability of displayer.

Description

A kind of bistable state cholesteric phase liquid crystal display structure

Technical field

The utility model belongs to technical field of liquid crystal display, relates in particular to a kind of bistable state cholesteric phase liquid crystal display structure.

Background technology

At present; Advantages such as the bistable state cholesteric liquid crystal displays of using bistable state cholesteric phase lcd technology is in light weight with it, null field is stablized, need not backlight, low in energy consumption; Be widely used in various portable terminals, e-book or other small size and show product; Thereby bistable state cholesteric phase lcd technology becomes one of focus of field of liquid crystals research.

Bistable state cholesteric phase lcd technology belongs to reflective display technique; It utilizes external environment light to come show image, and need not backlight, but is characterized in two plane attitude texture and burnt awl attitude texture equal stable existence during null field under certain boundary condition; Can black and white, monochrome or colored the demonstration; Utilize the effect of external electric field, realize the conversion of two states, have bistable characteristic.

The bistable state cholesteric phase liquid crystal display structure that prior art provides is as shown in Figure 1, specifically comprises: a upper substrate, an infrabasal plate, the absorption layer that is coated on the first inboard conductive film of upper substrate and first oriented layer in order, is coated on infrabasal plate inboard second conductive film and second oriented layer in order, is filled in the liquid crystal layer between first oriented layer, second oriented layer and is coated on the infrabasal plate outside.Because this bistable state cholesteric phase liquid crystal display structure need not use polaroid, make its surface reflectivity very high, thereby when causing high light under use; Surface reflection is too strong; Readability is not good, and because surface reflectivity is too high, can cause getting into the inner light intensity decreasing of liquid crystal yet; Thereby reduce the reflectivity of liquid crystal itself, display effect is poor.

Disclosed above-mentioned information only is used to increase the understanding to the utility model background technology in this background technology this part, so it possibly comprise those of ordinary skills' known systems that does not constitute this state.

The utility model content

The purpose of the utility model embodiment is to provide a kind of bistable state cholesteric phase liquid crystal display structure; Be intended to separate bistable state cholesteric phase liquid crystal display structure that prior art provides owing to do not use polaroid; Make its reflected light under high light strong excessively; Readability is not good, and reduces the reflectivity of liquid crystal itself, the problem of display effect difference.

The utility model embodiment realizes like this; A kind of bistable state cholesteric phase liquid crystal display structure; Comprise a upper substrate, be coated on upper substrate inboard first conductive film and first oriented layer in order, said bistable state cholesteric phase liquid crystal display structure also comprises: the counnter attack/anti-reflection functional layer that places the said upper substrate outside.

Wherein, said counnter attack/anti-reflection functional layer can be to be located at monofilm or the multilayer film that the said upper substrate outside, material and said upper substrate are complementary and have specific thicknesses and refractive index.

Wherein, said counnter attack/anti-reflection functional layer also can be the outside that is attached at said upper substrate, can comprise:

One transparent plastic substrate;

Be located at the monofilm with specific thicknesses and refractive index or the multilayer film in the said transparent plastic substrate outside.

Said single or multiple lift film can be monofilm or the multilayer film that the material with said transparent plastic substrate is complementary; Said counnter attack/anti-reflection functional layer can also comprise:

Place between the said upper substrate outside and the said transparent plastic substrate and be coated on the inboard glue-line of said transparent plastic substrate.

At this moment, the inboard of said transparent plastic substrate, the outside or bilateral can be coated with insulation course.

In the above-mentioned bistable state cholesteric phase liquid crystal display structure, said bistable state cholesteric phase liquid crystal display structure can also comprise:

One infrabasal plate; And

Be coated on said infrabasal plate inboard second conductive film and second oriented layer in order.

Further, said bistable state cholesteric phase liquid crystal display structure can also comprise:

Be arranged at first insulation course between said first conductive film and said first oriented layer; And/or

Be arranged at second insulation course between said second conductive film and said second oriented layer.

Be coated on the absorption layer in the said infrabasal plate outside.

The bistable state cholesteric phase liquid crystal display structure that the utility model provides can improve the reflectivity of display itself, reduces surface reflectivity, thereby has strengthened the readability of display.

Description of drawings

Fig. 1 is the bistable state cholesteric phase liquid crystal display structure figure that prior art provides;

Fig. 2 is the bistable state cholesteric phase liquid crystal display structure figure that the utility model provides.

Embodiment

For the purpose, technical scheme and the advantage that make the utility model is clearer,, the utility model is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.

The problem that the bistable state cholesteric phase liquid crystal display structure that provides to prior art exists; The bistable state cholesteric phase liquid crystal display structure that the utility model provides is on existing bistable state cholesteric phase liquid crystal display structure basis; In upper substrate arranged outside one counnter attack/anti-reflection functional layer; Show the bistable state cholesteric phase liquid crystal display structure that the utility model provides like Fig. 2,, only show the part relevant with the utility model for the ease of explanation.

Different with existing bistable state cholesteric phase liquid crystal display structure, the bistable state cholesteric phase liquid crystal display structure that the utility model provides also comprises: the counnter attack/anti-reflection functional layer 21 that places the upper substrate outside.

In an embodiment of the utility model, counnter attack/anti-reflection functional layer 21 is to be located at the monofilm with specific thicknesses and refractive index or the multilayer film in the upper substrate outside.This monofilm or multilayer film match with baseplate material, can effectively reduce the substrate surface reflectivity, increase the substrate transmitance, thereby increase the reflectivity of product self.When said substrate was glass substrate, this monofilm or multilayer film can be that magnesium fluoride (MgF2) material or composite S iO2/TiO2 or other can realize reducing the single or multiple lift membrane structure of substrate reflectivity.

In another embodiment of the utility model; Counnter attack/anti-reflection functional layer 21 is attached at the outside of upper substrate; Comprise a transparent plastic substrate, be located at the monofilm with specific thicknesses and refractive index or the multilayer film in the transparent plastic substrate outside, this single or multiple lift film is monofilm or the multilayer film that the material with transparent plastic substrate is complementary.In addition; Counnter attack/anti-reflection functional layer 21 can also comprise: place between the upper substrate outside and the transparent plastic substrate and be coated on the inboard glue-line of transparent plastic substrate; This transparent plastic substrate and on monofilm or multilayer film and glue-line is common constitutes a composite bed, and directly be attached at the outside of upper substrate.

The inboard of transparent plastic substrate wherein, the outside or bilateral can be coated with insulation course; And this transparent plastic substrate can add one or more functional layers according to the actual requirements, and preferably, this functional layer can be the combination of anti scuffing layer, antiglare layer or anti scuffing layer and antiglare layer.

In addition, the bistable state cholesteric phase liquid crystal display structure that provides of the utility model can also comprise: be arranged at first insulation course 22 between first conductive film and first oriented layer; And/or be arranged at second insulation course 23 between second conductive film and second oriented layer.

The bistable state cholesteric phase liquid crystal display structure that the utility model provides passes through in upper substrate arranged outside one counnter attack/anti-reflection functional layer; Thereby making incident light interfere with reflection of glass surface through this counnter attack/anti-reflection functional layer reflection disappears mutually; Reduce reflectivity and the purpose that increases transmitance to reach; When it is applied to high light following time, still possess good display effect, readable good.

The above is merely the preferred embodiment of the utility model; Not in order to restriction the utility model; Any modification of being done within all spirit and principles at the utility model, be equal to replacement and improvement etc., all should be included within the protection domain of the utility model.

Claims

1. bistable state cholesteric phase liquid crystal display structure; Comprise a upper substrate, be coated on said upper substrate inboard first conductive film and first oriented layer in order; It is characterized in that said bistable state cholesteric phase liquid crystal display structure also comprises: the counnter attack/anti-reflection functional layer that places the said upper substrate outside.

2. bistable state cholesteric phase liquid crystal display structure as claimed in claim 1 is characterized in that, said counnter attack/anti-reflection functional layer is to be located at monofilm or the multilayer film that the said upper substrate outside, material and said upper substrate are complementary and have specific thicknesses and refractive index.

3. bistable state cholesteric phase liquid crystal display structure as claimed in claim 1 is characterized in that, said counnter attack/anti-reflection functional layer is attached at the outside of said upper substrate, comprises:

One transparent plastic substrate;

4. bistable state cholesteric phase liquid crystal display structure as claimed in claim 3 is characterized in that, said single or multiple lift film is monofilm or the multilayer film that the material with said transparent plastic substrate is complementary; Said counnter attack/anti-reflection functional layer also comprises:

5. bistable state cholesteric phase liquid crystal display structure as claimed in claim 3 is characterized in that the inboard of said transparent plastic substrate, the outside or two-sided coatings have insulation course.

6. like each described bistable state cholesteric phase liquid crystal display structure of claim 1 to 5, it is characterized in that said bistable state cholesteric phase liquid crystal display structure also comprises:

One infrabasal plate; And

7. bistable state cholesteric phase liquid crystal display structure as claimed in claim 6 is characterized in that, said bistable state cholesteric phase liquid crystal display structure also comprises:

8. bistable state cholesteric phase liquid crystal display structure as claimed in claim 7 is characterized in that, said bistable state cholesteric phase liquid crystal display structure also comprises:

Be coated on the absorption layer of said infrabasal plate.