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Phase modulation module and projector comprising the same

A light phase and projector technology, applied in the field of projectors, can solve problems affecting the quality of pixel image imaging

Inactive Publication Date: 2013-10-23
TOUCH MICRO SYST TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Accordingly, the speckle phenomenon caused by high coherence will inevitably affect the quality of pixel image imaging

Method used

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  • Phase modulation module and projector comprising the same
  • Phase modulation module and projector comprising the same
  • Phase modulation module and projector comprising the same

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Embodiment Construction

[0052] The invention mainly relates to an optical phase modulation module and a projector using the optical phase modulation module. It should be noted that the following examples are used to illustrate the technical contents of the present invention, and are not intended to limit the scope of the present invention. Furthermore, in the following embodiments and drawings, elements irrelevant to the present invention have been omitted and not shown, and the dimensional relationship among the elements in the drawings is only for easy understanding, not for limiting the actual ratio. In addition, the spatial relationships such as "front", "back", and "between" among the components of the present invention are determined by the traveling route of the laser light, and do not refer to a specific spatial relationship between the components.

[0053] The first embodiment of the present invention is such as figure 1 As shown, it is a schematic diagram of the optical phase modulation mo...

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Abstract

An optical phase modulation module and a projector comprising the same are provided. The optical phase modulation module comprises a transparent thin film with an electro-optic effect, a plurality of first upper electrodes, a plurality of second upper electrodes and a plurality of lower electrodes. The transparent thin film with the electro-optic effect has a top surface and a bottom surface. The first upper electrodes are formed on the top surface. The second upper electrodes are formed on the top surface and arranged alternately with the first upper electrodes. The lower electrodes are formed on the bottom surface. A first voltage difference exists between the first upper electrodes and the bottom electrodes, while a second voltage difference exists between the second upper electrodes and the bottom electrodes. Two different electric fields are produced within the transparent thin film with the electro-optic effect by the first voltage difference and the second voltage difference respectively.

Description

technical field [0001] The invention relates to an optical phase modulation module and a projector including the optical phase modulation module. Specifically, the optical phase modulation module of the present invention can be set in a projection device or a display device with a laser light source. When the laser light generated by the laser light source passes through the optical phase modulation module, the laser light has different phases. Background technique [0002] In recent years, due to the advantages of high intensity and low divergence of laser light, many projection devices and display devices on the market have adopted laser light sources as their light sources. Laser light sources used for projection and display purposes, usually in the form of point light sources, line light sources or surface light sources, adjust the brightness of pixel elements through devices such as liquid crystal cells, digital movable mirrors or grating light valves, and use raster s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/03G03B21/20
CPCG02F2203/50G02B27/48H04N9/31G02F1/0102G02F2203/12H04N9/3161
Inventor 彭隆瀚赖志明林晃岩林永铭叶伯淳张晏硕洪瑞宏
Owner TOUCH MICRO SYST TECH