Spatial light modulator and display device

A technology of spatial light modulator and display device, which is applied in the directions of instruments, optics, optical components, etc., can solve the problems of slow rotation speed of liquid crystal molecules and long response time of spatial light modulator.

Inactive Publication Date: 2018-02-23
SHANGHAI TIANMA MICRO ELECTRONICS CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the rotation speed of liquid crystal molecules is relatively slow, resulting i

Method used

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  • Spatial light modulator and display device
  • Spatial light modulator and display device
  • Spatial light modulator and display device

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Embodiment Construction

[0024] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, only some structures related to the present invention are shown in the drawings but not all structures.

[0025] figure 1 It is a schematic top view structural diagram of a spatial light modulator provided by an embodiment of the present invention, figure 2 for along figure 1 A schematic diagram of a cross-sectional structure in the direction of AA', combined with figure 1 and figure 2 As shown, the spatial light modulator includes a substrate 10 and a plurality of phase modulation units 20 located on one side of the substrate 10 and arranged in an array. It should be noted, figure 1 The phase modulation units ...

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Abstract

The invention discloses a spatial light modulator and a display device and relates to the technical field of display. The modulator comprises a substrate and multiple phase modulation units which arearranged on one side of the substrate in an array manner. Any phase modulation unit comprises multiple electrodes. Each electrode comprises a first electrode and a second electrode. The first electrodes and the second electrodes, which are arranged in the position away from the substrate direction, are alternatively arranged. A piezoelectric layer is clamped between each first electrode and the corresponding second electrode and comprises piezoelectric materials. According to the invention, response time of the spatial light modulator is reduced.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a spatial light modulator and a display device. Background technique [0002] The display field requires precise modulation of light, and the modulation range includes but is not limited to propagation direction, amplitude, phase, and polarization. Amplitude (or light intensity) can be regulated by a combination of liquid crystal and polarizer; polarization can generally be modulated by a half-wave plate, a quarter-wave plate, etc.; phase can generally be controlled by a spatial light modulator for optical path difference to adjust. [0003] Currently, a Liquid Crystal on Silicon (LCoS) spatial light modulator is generally used to modulate the phase. Like ordinary liquid crystal displays, since the principle of liquid crystal on silicon spatial light modulator (LCoS-SLM) is to modulate the phase of light by liquid crystal molecules, the rotation speed of liquid crystal molecul...

Claims

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Application Information

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IPC IPC(8): G02B26/00
CPCG02B26/001G02B26/06G02B26/0858G02B27/1026G02F2203/12G02F1/1343
Inventor 刘耀阳徐健
Owner SHANGHAI TIANMA MICRO ELECTRONICS CO LTD
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