CN204287685U

CN204287685U - Stn display screen

Info

Publication number: CN204287685U
Application number: CN201420738309.6U
Authority: CN
Inventors: 薛念红; 周娟; 熊丈文
Original assignee: SHENZHEN XUANLIFENG TECHNOLOGY Co Ltd
Current assignee: SHENZHEN XUANLIFENG TECHNOLOGY Co Ltd
Priority date: 2014-11-28
Filing date: 2014-11-28
Publication date: 2015-04-22
Anticipated expiration: 2024-11-28

Abstract

A kind of STN display screen, the side that first conducting film of this STN display screen is laminated with the first alignment film is fixedly connected with by frame glue with the side that the second conducting film is laminated with the second alignment film, and the relative dual-side of the first alignment film is all fixedly connected with frame glue with the relative dual-side of the second alignment film, to form an enclosure space, in this enclosure space, be filled with liquid crystal; First alignment film offers the first groove that multiple friction orientation is identical, second alignment film offers the second groove that multiple friction orientation is identical, and the bearing of trend of the second groove intersects with the bearing of trend of the first groove, and make the twist angle of the liquid crystal in enclosure space be 290 °, thus maximum angular field of view is reached: LOOK LEFT θ=45 °, LOOK RIGHT δ=45 °, γ=135 °, positive visual angle, have wider angular field of view.

Description

STN display screen

Technical field

The utility model relates to display screen field, particularly a kind of STN display screen.

Background technology

There is the narrower problem in visual angle in current STN display screen, maximum angular field of view can only reach: LOOK LEFT θ=40 °, LOOK RIGHT δ=40 °, γ=120 °, positive visual angle, as shown in Figure 1.

Utility model content

Given this, the STN display screen providing a kind of visual angle wider is necessary.

A kind of STN display screen, comprise lower Polarizer, the first glass substrate, the first conducting film, the first alignment film, the second alignment film, the second conducting film, the second glass substrate and upper Polarizer, described first glass substrate, the first conducting film and the first alignment film stack gradually on described lower Polarizer, and described second alignment film, the second conducting film, the second glass substrate and upper Polarizer stack gradually;

The side that described first conducting film is laminated with described first alignment film is fixedly connected with by frame glue with the side that described second conducting film is laminated with described second alignment film, and the relative dual-side of described first alignment film is all fixedly connected with described frame glue with the relative dual-side of described second alignment film, to form an enclosure space, in described enclosure space, be filled with liquid crystal; Described first alignment film offers the first groove that multiple friction orientation is identical, described second alignment film offers the second groove that multiple friction orientation is identical, and the bearing of trend of described second groove intersects with the bearing of trend of described first groove, it is 290 ° to make the twist angle of the liquid crystal in described enclosure space.

Wherein in an embodiment, described first conducting film and the second conducting film are ITO conducting film.

Wherein in an embodiment, the thickness of described first glass substrate is selected from the one in 0.4 millimeter, 0.55 millimeter, 0.7 millimeter and 1.1 millimeters.

Wherein in an embodiment, the thickness of described second glass substrate is selected from the one in 0.4 millimeter, 0.55 millimeter, 0.7 millimeter and 1.1 millimeters.

Wherein in an embodiment, the distance between described first alignment film and described second alignment film is 6 ~ 7 microns.

Wherein in an embodiment, described first alignment film and the second alignment film are polyimide alignment film.

Wherein in an embodiment, described frame glue is epoxide-resin glue.

The relative dual-side of the first alignment film of above-mentioned STN display screen is all fixedly connected with frame glue with the relative dual-side of the second alignment film, to form an enclosure space, and this enclosure space is filled with liquid crystal, and intersected with the bearing of trend of the first groove by the bearing of trend of the second groove, and make the twist angle of the liquid crystal in enclosure space be 290 °, thus the maximum angular field of view of above-mentioned STN display screen is reached: LOOK LEFT θ=45 °, right δ=45 °, γ=135 °, positive visual angle, have wider angular field of view.

Accompanying drawing explanation

Fig. 1 is the visual angle figure of traditional STN display screen;

Fig. 2 is the structural representation of the STN display screen of an embodiment;

First alignment film of Fig. 3 for the STN display screen shown in Fig. 2 and the structural representation of the second alignment film;

Fig. 4 is the visual angle figure of the STN display screen shown in Fig. 2.

Embodiment

For the ease of understanding the utility model, below with reference to relevant drawings, the utility model is described more fully.Preferred embodiment of the present utility model is given in accompanying drawing.But the utility model can realize in many different forms, is not limited to embodiment described herein.On the contrary, provide the object of these embodiments be make the understanding of disclosure of the present utility model more comprehensively thorough.

It should be noted that, when element is called as " being fixed on " another element, directly can there is element placed in the middle in it on another element or also.When an element is considered to " connection " another element, it can be directly connected to another element or may there is centering elements simultaneously.Term as used herein " vertical ", " level ", "left", "right" and similar statement are just for illustrative purposes.

Unless otherwise defined, all technology used herein and scientific terminology are identical with belonging to the implication that those skilled in the art of the present utility model understand usually.The object of the term used in instructions of the present utility model herein just in order to describe specific embodiment, is not intended to be restriction the utility model.

As shown in Figure 2, the STN display screen 100 of an embodiment, comprises lower Polarizer 110, first glass substrate 120, first conducting film 130, first alignment film 140, second alignment film 150, second conducting film 160, second glass substrate 170 and upper Polarizer 180.

Wherein, the first glass substrate 120, first conducting film 130 and the first alignment film 140 stack gradually on lower Polarizer 110.Second alignment film 150, second conducting film 160, second glass substrate 170 and upper Polarizer 180 stack gradually.

The side that first conducting film 130 is laminated with the first alignment film 140 is fixedly connected with by frame glue 190 with the side that the second conducting film 160 is laminated with the second alignment film 150, and the relative dual-side of the first alignment film 140 is all fixedly connected with frame glue 190 with the relative dual-side of the second alignment film 150, to form an enclosure space 200 closed, in this enclosure space 200, be filled with liquid crystal.

In the present embodiment, frame glue 190 can be epoxide-resin glue.Such as, model is the modified form epoxide-resin glue of XN-5A.

See also Fig. 3, first alignment film 140 offers the first groove 142 that multiple friction orientation is identical, second alignment film 150 offers the second groove 152 that multiple friction orientation is identical, and the bearing of trend of the second groove 152 intersects with the first groove 142 bearing of trend, and the twist angle α of the liquid crystal in enclosure space 200 is made to be 290 °.Wherein, first groove 142 and the second groove 152 are all that the width that passes through increases gradually, the friction orientation of the first groove 142 and the second groove 152 all refers to from narrower one end of groove to wider one end, namely the friction orientation of groove is the frictional direction of liquid crystal, in other words, the frictional direction of the liquid crystal in enclosure space 200 is from narrower one end of groove to wider one end.Namely liquid crystal is 290 ° along the frictional direction of the second groove 152 and liquid crystal along the angle of the frictional direction of the first groove 142, and this angle is the twist angle α of the liquid crystal in enclosure space 200.

See also Fig. 4, Fig. 4 display be the maximum visual angle figure of above-mentioned STN display screen 100, the maximum angular field of view of above-mentioned STN display screen 100 reaches: LOOK LEFT θ=45 °, LOOK RIGHT δ=45 °, γ=135 °, positive visual angle, namely above-mentioned STN display screen 100 has wider visual angle.

In the present embodiment, the first conducting film 130 and the second conducting film 160 are ITO conducting film.Be appreciated that the first conducting film 130 and the second conducting film 160 can also be other conducting film of this area, such as, AZO conducting film etc.

In the present embodiment, the thickness of the first glass substrate 120 is selected from the one in 0.4 millimeter, 0.55 millimeter, 0.7 millimeter and 1.1 millimeters.The thickness of the second glass substrate 170 is selected from the one in 0.4 millimeter, 0.55 millimeter, 0.7 millimeter and 1.1 millimeters.Wherein, the thickness of the first glass substrate 120 and the second glass substrate 170 can be equal, also can be unequal, can select the thickness of the first glass substrate 120 and the second glass substrate 170 as required.

In the present embodiment, the distance between the first alignment film 140 and the second alignment film 150 is 6 ~ 7 microns.

In the present embodiment, described first alignment film 140 and the second alignment film 150 are polyimide alignment film.

Above-mentioned STN display screen 100 is by forming the enclosure space 200 of filling liquid crystal, and the twist angle of the liquid crystal in enclosure space 200 is set to 290 °, thus maximum angular field of view is reached: LOOK LEFT θ=45 °, LOOK RIGHT δ=45 °, γ=135 °, positive visual angle, have wider angular field of view.

The above embodiment only have expressed several embodiment of the present utility model, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.

Claims

1. a STN display screen, it is characterized in that, comprise lower Polarizer, the first glass substrate, the first conducting film, the first alignment film, the second alignment film, the second conducting film, the second glass substrate and upper Polarizer, described first glass substrate, the first conducting film and the first alignment film stack gradually on described lower Polarizer, and described second alignment film, the second conducting film, the second glass substrate and upper Polarizer stack gradually;

The side that described first conducting film is laminated with described first alignment film is fixedly connected with by frame glue with the side that described second conducting film is laminated with described second alignment film, and the relative dual-side of described first alignment film is all fixedly connected with described frame glue with the relative dual-side of described second alignment film, to form an enclosure space, in described enclosure space, be filled with liquid crystal; Described first alignment film offers the first groove that multiple friction orientation is identical, described second alignment film offers the second groove that multiple friction orientation is identical, and the bearing of trend of described second groove intersects with the bearing of trend of described first groove, and the twist angle of the liquid crystal in described enclosure space is made to be 290 °.

2. STN display screen according to claim 1, is characterized in that, described first conducting film and the second conducting film are ITO conducting film.

3. STN display screen according to claim 1, is characterized in that, the thickness of described first glass substrate is selected from the one in 0.4 millimeter, 0.55 millimeter, 0.7 millimeter and 1.1 millimeters.

4. STN display screen according to claim 1, is characterized in that, the thickness of described second glass substrate is selected from the one in 0.4 millimeter, 0.55 millimeter, 0.7 millimeter and 1.1 millimeters.

5. STN display screen according to claim 1, is characterized in that, the distance between described first alignment film and described second alignment film is 6 ~ 7 microns.

6. STN display screen according to claim 1, is characterized in that, described first alignment film and the second alignment film are polyimide alignment film.

7. STN display screen according to claim 1, is characterized in that, described frame glue is epoxide-resin glue.