Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Ceiling reflection resistant projection screen and projection system

A technology for projection screens and ceilings, applied in optics, instruments, projection devices, etc., can solve problems such as ceiling reflections

Active Publication Date: 2021-08-10
QINGDAO HISENSE LASER DISPLAY CO LTD
View PDF8 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of this application is to provide an anti-ceiling reflection projection screen and a projection system, which are used to solve the problem that the projection screen in the prior art will produce ceiling reflections during use

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
  • Ceiling reflection resistant projection screen and projection system
  • Ceiling reflection resistant projection screen and projection system
  • Ceiling reflection resistant projection screen and projection system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0034]In the description of this application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", The orientations or positional relationships indicated by "top", "bottom", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the application and simplifying the description, rather than indicating or implying Refer...

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 ceiling reflection resistant projection screen and a projection system, relates to the technical field of projection screens, and aims at solving the problem that a projection screen in the prior art can generate ceiling reflection in the use process. The ceiling reflection-resistant projection screen comprises a surface layer, a base material layer, a Fresnel lens layer and a reflecting layer which are sequentially stacked and arranged, a plurality of light-transmitting protrusions are arranged on the surface, away from the Fresnel lens layer, of the surface layer, and the surfaces of the light-transmitting protrusions are provided with gradually-shrinking parts and / or gradually-expanding parts in the direction away from the Fresnel lens layer; diffusion particles are arranged in the light-transmitting bulges; and the value range of the haze value of the surface of the light-transmitting bulge is 12%-20%. By using the ceiling reflection resistant projection screen, ceiling reflection resistance can be realized.

Description

technical field [0001] The present application relates to the technical field of projection screens, in particular to an anti-reflection ceiling projection screen and a projection system. Background technique [0002] In the field of projection display, especially the field of ultra-short-throw laser projection display, in order to achieve better brightness and display effect, the projector is generally used with a projection screen with Fresnel microstructure. A projection screen with a Fresnel microstructure generally includes a surface layer, a substrate layer, a Fresnel lens layer and a reflective layer arranged in sequence. [0003] In the prior art, the surface of the surface layer far away from the Fresnel lens layer is generally a smooth surface. When the light emitted by the projector is irradiated on the surface layer of the projection screen, specular reflection will occur, generally about 1%-5%. The light is reflected to the ceiling by the mirror, thereby formin...

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): G03B21/602G03B21/58
CPCG03B21/602G03B21/58G03B21/60
Inventor 肖伟王超侯蕊冯宇
Owner QINGDAO HISENSE LASER DISPLAY CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com