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Laser projection screen manufacturing method and laser projection screen

A technology of laser projection and production method, applied in optics, instruments, projection devices, etc., can solve the problems of restricting the promotion and application of laser projection display screens, difficult to obtain high-quality display effects, and complicated processing molds, so as to protect eyes and save money. The production time and production process are simple and easy to operate

Active Publication Date: 2020-11-27
青岛国骐光电科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the current method of manufacturing laser projection screens is cumbersome, complicated to process molds, expensive and time-consuming.
In addition, when background light such as indoor lighting and outdoor light sources is projected onto the laser projection screen, since the laser light source is the light of passive reflective projection equipment, the laser projection screen is also easily affected by the background light, which in turn will cause imaging interference, making it difficult to obtain high-quality images. The high-quality display effect, from the perspective of ergonomics, is also not conducive to the protection of the eyes, thus restricting the promotion and application of laser projection display screens in laser TVs, projectors, etc.

Method used

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  • Laser projection screen manufacturing method and laser projection screen
  • Laser projection screen manufacturing method and laser projection screen
  • Laser projection screen manufacturing method and laser projection screen

Examples

Experimental program
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Effect test

Embodiment 1

[0041] A method for manufacturing a laser projection screen, comprising the following steps:

[0042] Step S1, the optical mold core is machined into a mold opening method, and the surface to be processed of the optical mold core raw material is processed into a microstructure of concentric circles from large to small, and processed into such figure 1 , figure 2 The microstructure shown. figure 1 It is a schematic diagram of the front structure of the optical mold core of a laser projection screen. It can be seen that the microstructure is concentric circles from large to small, and the angle of each concentric circle, the depth of processing, and the width of the lines are all different. figure 2 It is a side structure (left side) of an optical mold core of a laser projection screen and a schematic diagram (right side) of the semi-finished product side structure of a laser projection screen; preferably, in this embodiment, the optical mold core material is a mixed transpar...

Embodiment 2

[0054] A laser projection screen, comprising a screen back plate, the screen back plate includes an optical plate 3 and a color-changing layer, the optical plate 3 is closely attached to the color-changing layer, and the optical plate 3 has several The light projected by the host 1 is reflected to the audience and an optical module that absorbs the interference of the background light source 4. The optical module includes a reflective surface 2 for reflecting the light projected by the laser projection to the audience, and a light-absorbing surface 7 for absorbing the background light source 4 and The optical glue surface, the reflective surface 2, the light-absorbing surface 7 and the optical glue surface form a triangular column microstructure, and several triangular column microstructures are continuously connected together to form a sawtooth array, and the sawtooth array is arranged in a matrix. The single Due to the different light angles of the triangular columns projecte...

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Abstract

The invention discloses a laser projection screen manufacturing method. The laser projection screen manufacturing method comprises the following steps that S1, the surface of an optical mold core is machined into the optical mold core with a microstructure; S2, the optical mold core is subjected to ultrasonic cleaning; S3, a release agent is coated to obtain a release layer; S4, the release layeris coated with an optical adhesive; S5, an optical plate is attached to the optical adhesive; S6, UV curing is carried out, and a laser projection screen semi-finished product coated with a release layer, an optical adhesive and an optical plate is obtained; S7, the laser projection screen semi-finished product and the optical mold core are demolded; S8, the semi-finished product of the laser projection screen is sprayed to form a reflecting surface; S9, the semi-finished product of the laser projection screen on which the reflecting surface is sprayed is baked, and the baked semi-finished product of the laser projection screen is cut; S10, a color changing layer is arranged on the baked laser projection screen semi-finished product so as to obtain the laser projection screen. The invention also discloses a laser projection screen which is not interfered by a background light source and has a good imaging effect.

Description

technical field [0001] The invention relates to the field of laser projection display, in particular to a method for manufacturing a laser projection screen and the laser projection screen. Background technique [0002] The traditional projection display technology currently on the market has low anti-interference and cannot be used in brightly lit places, and usually needs to be used in darker light environments. Laser projection display technology is a new type of projection display technology currently on the market. Compared with traditional projection display technology, laser projection display has the advantages of high contrast, clear imaging, bright colors, high brightness, energy saving and environmental protection. [0003] However, the current manufacturing method of the laser projection screen is cumbersome in technology, complex in processing molds, expensive and time-consuming. In addition, when background light such as indoor lighting and outdoor light sourc...

Claims

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Application Information

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IPC IPC(8): G03B21/60
CPCG03B21/60
Inventor 王晓许铭富张子宾谢婷
Owner 青岛国骐光电科技有限公司