CN201514537U

CN201514537U - Optical projection screen

Info

Publication number: CN201514537U
Application number: CN 200920219544
Authority: CN
Inventors: 王镜竣
Original assignee: HONYI TECH MATERIALS Co Ltd
Current assignee: HONYI TECH MATERIALS Co Ltd
Priority date: 2009-09-27
Filing date: 2009-09-27
Publication date: 2010-06-23
Anticipated expiration: 2019-09-27

Abstract

The utility model discloses an optical projection screen. The optical projection screen comprises a screen body, a scroll bar body and a bottom shaft. The screen body includes a substrate, a brightening layer, an anti-glare layer, an antifouling layer, a light absorption layer, a brightness enhancement layer and a reflection layer, wherein the substrate includes a top surface and a bottom surface; the brightening layer is arranged on the top surface of the substrate; the anti-glare layer is arranged on the top surface of the brightening layer; the antifouling layer is arranged on the top surface of the anti-glare layer; the light absorption layer is arranged on the bottom surface of the substrate; the brightness enhancement layer is arranged on the bottom surface of the light absorption layer; and the reflection layer is arranged at the bottom of the brightness enhancement layer. The optical projection screen can achieve good image effect with the advantages of high brightness, high chroma, high color brightness, no glare and low light sensitivity.

Description

The optical projection screen

Technical field

The utility model relates to a kind of projection screen, particularly relates to the optical projection screen of a kind of high brightness, Gao Yandu and non-photophobia, not dazzle.

Background technology

Traditional projection screen, divide into two kinds: first kind is the pearly-lustre screen, and second kind is the white screen of seat, and these two kinds of projection screens all are the front projection screen that the cloth material is made.

Because the picture of pearly-lustre screen and the white screen of seat does not have depth perception, must be at turn-off, make light-shielding, just can watch clearly picture, and if under the environment of turning on light, ray cast is in pearly-lustre screen or the white screen of seat, and its picture can present the state of whiting, not distinct and color distortion.

Based on the use restriction of aforementioned pearly-lustre, the white screen of seat, when carrying out meeting, rayless state is taken notes to the participant through regular meeting and is made troubles.

In addition, though also can be used as floor light opening several lamps away from pearly-lustre, the white screen of seat place,, have the environment of light can destroy the sharpness of picture, and if gabfest also can have a strong impact on eyesight.

The utility model content

The purpose of this utility model is to provide a kind of optical projection screen, to obtain the video vision of high brightness, high chroma, Gao Yandu, high-contrast and non-photophobia, not dazzle.

To achieve these goals, the technical solution of the utility model is:

A kind of optical projection screen be made up of a screen main body, a scroll bar main body and a lower shaft, and the screen main body comprises that a base material, increases gorgeous layer, a Bewildering resistance layer, an anti-soil layer, a light-absorption layer, a brightness enhancement layer and a reflection horizon, wherein,

Base material has an end face and a bottom surface;

Increase gorgeous layer, be arranged at the end face of base material;

Bewildering resistance layer is arranged at the end face that increases gorgeous layer;

The anti-soil layer is arranged at the end face of Bewildering resistance layer;

Light-absorption layer is arranged at the bottom surface of base material;

Brightness enhancement layer is arranged at the bottom surface of light-absorption layer;

The reflection horizon is arranged at the bottom surface of brightness enhancement layer.

Described base material is the polyethylene terephthalate material.

Described optical projection screen comprises an antistatic layer, and antistatic layer is arranged at the top of Bewildering resistance layer.

Described optical projection screen comprises a black matrix layer, and black matrix layer is arranged at the bottom surface in reflection horizon.

After adopting said structure, the utility model is compared with the general white screen of seat, contrast can promote up to five times, the saturation degree of colors of image is near the liquid crystal lcd screen, brightness is soft not dazzling and radiationless, image quality is careful abundant, and visible angle has the image effect of high brightness, high chroma, Gao Yandu, high-contrast and non-photophobia, not dazzle up to more than 165 °.

Description of drawings

Fig. 1 is the stereographic map of the optical projection screen of the utility model first embodiment;

Fig. 2 is the cut-open view of screen main body among first embodiment.

Fig. 3 is the synoptic diagram of ray cast on the screen main body among first embodiment.

Fig. 4 is the enlarged diagram of screen body surfaces microstructure among first embodiment, the anti-dazzle effect of display screen main body.

Fig. 5 is the cut-open view of the optical projection screen of the utility model second embodiment.

Embodiment

With reference to Fig. 1 and Fig. 2, first embodiment of the utility model optical projection screen comprises a screen main body 100, a scroll bar main body 200 and a lower shaft 300.

Screen main body 100 comprises a base material 110, and increases gorgeous layer 120, one Bewildering resistance layer 130, an anti-soil layer 140, an antistatic layer 150, a light-absorption layer 160, a brightness enhancement layer 170, a reflection horizon 180 and a black matrix layer 190, to constitute the screen main body 100 of an orthogonal projection.Wherein:

Base material 110 is for PET (Polyethylene Terephthalate, polyethylene terephthalate) material is made.This base material 110 has an end face 111 and a bottom surface 112.

Increase gorgeous layer 120, be arranged at the end face 111 of base material 110.This increases the in addition brightening of light that gorgeous layer 120 draws light-absorption layer 160.

Bewildering resistance layer 130 (Anti glare) is arranged at the end face that increases gorgeous layer 120.This antiglare layer 130 can be resisted the random scattering of light source, to obtain the anti-dazzle effect.

Anti-soil layer 140 (Anti smudge) is arranged at the end face of Bewildering resistance layer 130.This anti-soil layer 140 is so that how the meter level film is handled, and can prevent that screen surface from being scraped.

Antistatic layer 150 (Anti static) is arranged at the end face of anti-soil layer 140, and above Bewildering resistance layer 130.This antistatic layer 150 can be kept out the electromagnetic wave of outside electric equipment products, can obtain the effect of electrostatic prevention.

Light-absorption layer 160 is arranged at the bottom surface 112 of base material 110.This light-absorption layer 160 can absorb the light source of projector's radiation picture.

Brightness enhancement layer 170 is arranged at the bottom surface of light-absorption layer 160.This brightness enhancement layer 170 can be carried out the processing of brightness multiplication with the light that increases after gorgeous layer 120 is handled.

Reflection horizon 180 is arranged at the bottom surface of brightness enhancement layer 170.Through extinction, increase the light after gorgeous, blast is handled, reflex to black matrix layer 190 via this reflection horizon 180, can outwards project the image of high brightness, Gao Yandu, high contrast and high chroma.

Black matrix layer 190 is arranged at the bottom surface in reflection horizon 180.This black matrix layer 190 can act on the media that the image reflection is done in reflection horizon 180.

Shown in Figure 3, ray cast view for screen main body 100, particularly light-absorption layer 160, brightness enhancement layer 170 are assembled first projection module 400 with reflection horizon 180, assemble second projection module 500 and increase gorgeous layer 120, Bewildering resistance layer 130, anti-soil layer 140 and antistatic layer 150.In Fig. 3, the spherical profile of semicircle of first projection module 400 and second projection module 500 is its surperficial microstructure.

When light comes from the projection of screen main body 100 the place aheads, its crevice projection angle (Projectionangle) is 25 °, the light that projection enters penetrates base material 110 from second projection module 500, and squeeze into first projection module 400, after running into black matrix layer 191, to external reflection, angle of visibility (Viewing angle) is up to more than 165 ° again.Absorb the picture of projector's radiation by light-absorption layer 160, increase gorgeous color through increasing gorgeous layer 120, make brightness multiplication by brightness enhancement layer 170 again and handle, via reflection horizon 180 image is reflected away at last, to obtain the image of high chroma, high brightness, Gao Yandu, high-contrast.

Therefore, the overall brightness of optical projection screen of the present utility model is soft not dazzling, and radiationless line, and the contrast height of color is attended the contrast of white screen (Matte screen) up to more than five times, image quality is careful abundant, near the screen chroma of liquid crystal LCD, and to the surround lighting absorptivity up to 90%, make still can represent clear beautiful additive color under the high light.

Surface because of screen main body 100 has waterproof and dustproof and antistatic function again, therefore, also can provide writing function, is suitable for general blank pen when writing, and need not to buy more in addition other pen and ink.And scratch resistant, the not residual China ink in surface, water-fastly wash, cleaning easily.Therefore, this optical projection screen can be widely used in occasions such as various meeting occasions, family's theater, market exhibition sale, educational institution, speech occasion and research discussion, play the film except providing, the functions of use that can also possess general blank, increase the utilization of space usefulness, made this optical projection screen possess the dual-use function of projection and blank simultaneously.

With reference to Fig. 4, be the surface micro-structure of screen main body 100, base material 110, increase gorgeous layer 120, Bewildering resistance layer 130, anti-soil layer 140, antistatic layer 150, light-absorption layer 160, brightness enhancement layer 170 and be combined into an anti-dazzle projection module 600 with reflection horizon 180.When light source 700 during towards 600 irradiations of anti-dazzle projection module, based on antiglare layer 130 protective actions, make the surface source of light uniformity coefficient of screen main body 100 greater than 85%, and not photophobia, not dazzle.

In sum, optical projection screen 100 of the present utility model, by base material 110, increase gorgeous layer 120, Bewildering resistance layer 130, anti-soil layer 140, antistatic layer 150, light-absorption layer 160, brightness enhancement layer 170, the combination of reflection horizon 180 and black matrix layer 190, when the picture ray cast of projector during in screen main body 100, no matter screen main body 100 is in indoor or outdoors, still can enjoy high brightness, high image quality, high chroma, Gao Yandu, high-contrast, high angle of visibility, high light uniformity coefficient and to the surround lighting absorptivity up to 90% picture effect, and almost unglazed evil produces, therefore, this optical projection screen is still clear beautiful under high light, also can prevent dazzle simultaneously, splendid video vision is provided.

With reference to Fig. 5, be second embodiment of the present utility model, among this embodiment, omit the black matrix layer 190 of Fig. 2, by base material 110, increase the screen main body 100 that a back projection is formed in gorgeous layer 120, Bewildering resistance layer 130, anti-soil layer 140, antistatic layer 150, light-absorption layer 160, brightness enhancement layer 170 and reflection horizon 180, the effect that its expection reaches is all identical with aforementioned first embodiment, no longer repeats at this.

Claims

1. an optical projection screen is made up of a screen main body, a scroll bar main body and a lower shaft, it is characterized in that: the screen main body comprises that a base material, increases gorgeous layer, a Bewildering resistance layer, an anti-soil layer, a light-absorption layer, a brightness enhancement layer and a reflection horizon, wherein,

Base material has an end face and a bottom surface;

Increase gorgeous layer, be arranged at the end face of base material;

Light-absorption layer is arranged at the bottom surface of base material;

2. optical projection screen as claimed in claim 1 is characterized in that: described base material is the polyethylene terephthalate material.

3. optical projection screen as claimed in claim 1 is characterized in that: described optical projection screen also comprises an antistatic layer, and antistatic layer is arranged at the top of Bewildering resistance layer.

4. optical projection screen as claimed in claim 1 is characterized in that: described optical projection screen also comprises a black matrix layer, and black matrix layer is arranged at the bottom surface in reflection horizon.