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Screen and preparation method of light-absorbing film

A screen and light film technology, applied in optics, flat products, instruments, etc., can solve the problems of complex process, low yield, low optical efficiency, etc., to increase the bonding strength between layers, increase productivity, and reduce costs Effect

Active Publication Date: 2019-07-05
APPOTRONICS CORP LTD
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  • Abstract
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  • Claims
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Problems solved by technology

However, since the size of the microstructure is very small, and the pitch is generally in the range of 25 to 250 microns, the process of selectively coating the optical functional layer on the surface of the microstructure is very complicated, the yield is low, and the optical efficiency is not high.

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  • Screen and preparation method of light-absorbing film
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  • Screen and preparation method of light-absorbing film

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Embodiment Construction

[0055] Hereinafter, specific embodiments according to the present invention will be described in detail with reference to the accompanying drawings. It should be emphasized that all dimensions in the drawings are only schematic and not necessarily shown in true scale, and thus are not limiting. For example, it should be understood that the thickness and thickness ratio of each layer in the multilayer structure of the projection screen shown in the figure are not shown according to the actual size and ratio, but are only for the convenience of illustration.

[0056] 1. Overview of total reflection projection system

[0057] image 3 is a schematic structural diagram showing a projection system according to an embodiment of the present invention. Such as image 3 As shown in , the projection system includes a screen 10 and a projector 20 . The screen 10 includes a surface total reflection layer 14, a volume diffusion layer 13, an optical function layer 12, and a light absor...

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Abstract

The invention discloses a screen with a light absorption layer and a preparation method of the light absorption film for the light absorption layer. The screen comprises a first transparent base material layer, an optical function layer, an adhesive glue layer and the light absorption layer, which are sequentially stacked from the incident side of the projection light. The light absorption layer receives and absorbs light which passes through the adhesive layer and reaches the light absorption layer. The optical function layer comprises a plurality of microstructure units, and the plurality ofmicrostructure units form a sawtooth structure. The optical function layer can enable at least a part of projection light to be emitted after total reflection and to transmit at least a part of ambient light. According to the invention, the screen gain can be improved while the high contrast is obtained, the processing technology can be simplified, and the cost can be reduced.

Description

technical field [0001] The present invention relates to the field of projection screens, and in particular, to screens with light-absorbing layers and methods of making light-absorbing films for forming such light-absorbing layers. Background technique [0002] In recent years, with the continuous improvement of the brightness of projectors, the advantages of projection display systems in large-scale home theater applications have begun to emerge. Compared with LCD TVs and OLED TVs, the projection display system is small in size, easy to install, can easily realize a display screen larger than 100 inches, and the price of the whole system is relatively low. [0003] In a home application environment, a projection display system is often installed in a living room. The living room usually has good natural lighting conditions and bright lighting sources, so there is a lot of ambient stray light. A typical projector screen can reflect both the light from the projector and the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03B21/60B29C41/12B29L7/00
CPCG03B21/60B29C41/12B29L2007/00B29C48/08G03B21/602
Inventor 王霖王杰胡飞李屹
Owner APPOTRONICS CORP LTD
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