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High-resolution projection display device

A high-resolution, projection display technology, applied in the field of projection display, to achieve the effect of improving resolution

Pending Publication Date: 2020-10-20
CHENGDU TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

When the application scene needs to achieve high-resolution projection display, the traditional projection device will encounter a bottleneck

Method used

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Experimental program
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Embodiment 1

[0023] figure 1 A schematic structural diagram of the high-resolution projection display device 010 provided in this embodiment. In the figure, the x coordinate represents the horizontal direction in space, the y coordinate represents the vertical direction in space, and z represents the direction perpendicular to the x-y plane. Please refer to figure 1 , this embodiment provides a high-resolution projection display device 010, the high-resolution projection device 010 consists of a grating screen 100, a first projector 210, a second projector 220, a third projector 230, a fourth projector 240 composition.

[0024] Please refer to figure 1 , the first to fourth projectors 210-240 are arranged to form an array, and the light for projecting an image is vertical linearly polarized light.

[0025] Please refer to figure 2 , The grating screen 100 is composed of a polarizing grating 110, a 1 / 4 wave plate 120 and a diffuse reflection layer 130, which are placed in sequence. T...

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Abstract

The invention provides a high-resolution projection display device. The high-resolution projection device is composed of a grating curtain, a first projector, a second projector, a third projector anda fourth projector. The first to fourth projectors are arranged to form an array, and light rays of projected images of the projectors have the same linear polarization direction; the grating curtainis composed of a polarization grating, a 1 / 4 wave plate and a diffuse reflection layer which are sequentially arranged front and back. The polarization grating is prepared by punching a polarizing film, and the position of a pixel of an image projected by each projector is just overlapped with the position of the through hole; due to the fact that the first projector, the second projector, the third projector and the fourth projector are different in spatial positions, four pixel light spots with different spatial positions can be formed after light projected by the projectors passes throughholes. The pixel light spots are combined to form an image with four times of pixel resolution, and the image can be displayed in all directions due to 1 / 4 wave plate modulation.

Description

technical field [0001] The present invention relates to display technology, and more particularly, the present invention relates to projection display technology. Background technique [0002] The projection display device can project an image on a screen, and it has an advantage in picture size compared with a traditional flat panel display device. Usually, the traditional projection device only completes the projection through a single projector, and the resolution of the image is determined by the resolution of the single projector. When the application scene needs to realize high-resolution projection display, the traditional projection device will encounter a bottleneck. Therefore, the present invention proposes a high-resolution projection display device, which realizes image projection through a plurality of projectors, thereby realizing high-resolution image display. Contents of the invention [0003] The invention provides a high-resolution projection display de...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03B21/20G03B21/604
CPCG03B21/2073G03B21/604
Inventor 吕国皎赵百川
Owner CHENGDU TECH UNIV