LCD light valve taking copper phthalocyanine-cadmium sulphide multilayer complex film as photosensitive layer and preparing process thereof

A multi-layer composite film and liquid crystal light valve technology, which is applied in optics, nonlinear optics, instruments, etc., can solve the problems that it is difficult to realize the photosensitive layer of high-resolution liquid crystal light valves, and does not have photoconductive anisotropy, so as to improve the Effects of lifetime and resolution, large absorption coefficient, and improved resolution

Inactive Publication Date: 2005-03-16
ZHEJIANG UNIV
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  • Abstract
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Problems solved by technology

[0022] Generally used as optoelectronic semiconductor materials for the photosensitive layer of liquid crystal light valves, such as α-Si:H, CdS, etc., there will be no difference in the photoconductive process in the vertical and horizontal directions, so it does not have photoconductive anisotropy, and it is difficult to achieve high resolution Requirements for the photosensitive layer of liquid crystal light valves

Method used

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  • LCD light valve taking copper phthalocyanine-cadmium sulphide multilayer complex film as photosensitive layer and preparing process thereof
  • LCD light valve taking copper phthalocyanine-cadmium sulphide multilayer complex film as photosensitive layer and preparing process thereof
  • LCD light valve taking copper phthalocyanine-cadmium sulphide multilayer complex film as photosensitive layer and preparing process thereof

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Embodiment Construction

[0039] Specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0040] like figure 1As shown, the writing light 11 passes through the first glass substrate 1 and the first transparent conductive film (indium tin oxide film ITO) 2 evaporated on the first glass substrate 1, and reaches the first transparent conductive film prepared by the vacuum evaporation method. The photosensitive layer 3 of the copper phthalocyanine / cadmium sulfide (CuPc / CdS) multilayer composite film on the film 2, after the light enters the light blocking layer (cadmium telluride CdTe) 4 with a large absorption coefficient, combined with the intermediate dielectric reflection layer 5 , the writing light 11 and the reading incident light 12 are isolated, so that the writing light 11 cannot be irradiated on the liquid crystal layer 7 to affect the imaging quality. Both sides of the liquid crystal layer 7 are in direct contact with the fir...

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Abstract

This invention discloses a phthalocyanine copper or cadmium sulfide multiple-layer compound film photosensitive layer and its process method. The said phthalocyanine copper or cadmium sulfide multiple-layer compound film comprises the first glass base plane, first transparent conductive film, phthalocyanine copper or cadmium sulfide multiple-layer compound photosensitive layer, opaque layer, reflecting medium layer, first crystal position layer, crystal layer, second crystal position layer, second transparent conductive film and second glass base plane. The wide responding light spectrum can ensure it get high-resolution ratio in the utility of the crystal light valve and high contrast and the wide read-in light responding spectrum.

Description

technical field [0001] The invention belongs to a light-addressing spatial light modulator, and particularly relates to a liquid crystal light valve using a copper phthalocyanine / cadmium sulfide (CuPc / CdS) multilayer composite film as a photosensitive layer. Background technique [0002] The liquid crystal light valve can be divided into two types according to its working mode: reflection type and transmission type. The present invention belongs to the reflection type liquid crystal light valve. The resolution of the liquid crystal light valve is an important indicator of its performance, and the photosensitive layer is the key part that determines the resolution of the liquid crystal light valve. The following theoretically analyzes the influence of the photosensitive layer on the resolution of the liquid crystal light valve device. When the photosensitive layer of the liquid crystal light valve is irradiated by the writing light, due to the different illumination intensit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/13
Inventor 韩高荣何智兵
Owner ZHEJIANG UNIV
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