Projection screen and laser projection system

A technology of projection screen and laser projection, which is applied in the field of laser projection, can solve problems such as poor stereo sound effect, achieve the effect of improving stereo sound effect and reducing the probability of mutual interference

Active Publication Date: 2022-02-25
QINGDAO HISENSE LASER DISPLAY CO LTD
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the projection screen needs to produce sound, the exciter 04a and the exciter 04b need to work simultaneously, the physical displacement and deformation of the first area 012a, and the physical displacement and deformation of the second area 012b will interfere with each other, which will eventually lead to the The stereo effect of the sound from the projection screen is poor

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Projection screen and laser projection system
  • Projection screen and laser projection system
  • Projection screen and laser projection system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] In order to make the purpose, technical solution and advantages of the present application clearer, the implementation manners of the present application will be further described in detail below in conjunction with the accompanying drawings.

[0028] Please refer to image 3 and Figure 4 , image 3 It is a top view of a projection screen provided in an embodiment of the present application, Figure 4 yes image 3 An exploded view of the projection screen shown. The projection screen 000 may include:

[0029] The optical screen 100 , the sounding board 200 , the first supporting part 300 and two groups of sounding parts 400 .

[0030] The optical screen 100 can be connected with the sounding board 200 . In this application, the structure formed by connecting the optical screen 100 and the sounding panel 200 may be called a sounding screen.

[0031] The sounding panel 200 may have two sounding areas. For example, the two sounding areas may be respectively: a fir...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a projection screen and a laser projection system, and belongs to the technical field of laser projection. The projection screen comprises an optical screen sheet, a sound production plate, a first supporting part and two groups of sound production parts. When the two groups of sound production parts work, both a first sound production area and a second sound production area in the sound production plate can generate physical displacement and deformation, so that both the first sound production area and the second sound production area can produce sounds. As the first supporting part can be adhered to one surface, far away from the optical curtain sheet, of the sound production plate and is located between the first sound production area and the second sound production area, at least partial area, in contact with the first supporting part, of the sound production plate does not generate physical displacement or deformation. The stereo effect of the sound emitted by the projection screen is effectively improved.

Description

technical field [0001] The present application relates to the technical field of laser projection, in particular to a projection screen and a laser projection system. Background technique [0002] The laser projection system includes a projection screen and laser projection equipment. The laser projection equipment can project pictures on the projection screen to realize functions such as video playback. [0003] Currently, it is possible to integrate the sound-generating components of a laser projection system into the projection screen. For example, please refer to figure 1 , figure 1 It is a top view of a projection screen provided by related technologies, figure 2 yes figure 1 An exploded view of the projection screen shown. The projection screen may include: a sounding screen 01 , a frame body 02 , a cover plate 03 , an exciter 04 and a shock absorbing frame 05 . The sound screen 01 may include: an optical screen 011 , a sound board 012 , and a screen adhesive la...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): G03B21/56
CPCG03B21/56
Inventor 邢哲魏伟达徐虹哲戴洁
Owner QINGDAO HISENSE LASER DISPLAY CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap