Display screen and display apparatus

A technology of projection device and reflective screen, applied in optical components, optics, instruments, etc., can solve problems such as insufficient brightness

Inactive Publication Date: 2015-11-25
杨毅
View PDF6 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The reflective screen has a high transmittance to sunlight and the color does not change, so that the reflective screen will not affect the driver's observation of the scene outside the ca

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
  • Display screen and display apparatus
  • Display screen and display apparatus
  • Display screen and display apparatus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0012] The present invention proposes a reflective screen and a display device using the display screen. The working principle diagram of the display device is as follows figure 1 shown. The display device includes a projection device 102 and a display screen 101 . The display screen includes a transparent substrate and a film on the surface of the substrate. The film has wavelength selection properties, and the reflection spectrum of the wavelength selection properties is as follows: figure 2 shown. exist figure 2 It can be seen from the figure that the film has a reflection peak 233, 232 and 231 in the three bands of red, green and blue respectively, and the average transmittance of other visible light bands other than the reflection peak exceeds 85%.

[0013] In this embodiment, the central wavelength of the blue reflection peak 231 is 455 nanometers, the central wavelength of the green reflection peak 232 is 520 nanometers, and the central wavelength of the red reflec...

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 present invention provides a display screen and a display apparatus. The display screen includes a transparent substrate and a thin film on a surface of the substrate. The thin film has a wavelength selection characteristic, and has one reflection apex in a red wave band, a green wave band and a blue band respectively, an average transmitting rate of other visible light wave bands except for the reflection apexes is larger than 85%; wherein, a peak reflectance of the green reflection apex and the blue reflection apex is a first ratio and a peak reflectance of the red reflection apex and the blue reflection apex is a second ratio so that human eyes can not detect a difference between a color of an emergent light and a color of an incident light after a transmission of the sunlight to the thin film in sunny days. The reflection screen has a high transmittance for the sunlight and a constant color, and thus the reflection screen does not affect the way that a driver observes sceneries outside a vehicle. At the same time, the reflection screen has a high reflectivity for information light projected by a projector so as to greatly solve a problem of insufficient luminance.

Description

technical field [0001] The invention relates to the display field, in particular to a display screen and a display device using the display screen. Background technique [0002] At present, the vehicle head-up display is a hot spot of applied research. Head-up display refers to projecting images of car information, navigation information, etc. into the eyes of the driver within the driver's head-up line of sight. Improve driving safety. [0003] There are many kinds of head-up display products on the market, but there is a common problem of insufficient brightness; especially in the daytime (sunny day) when the background light is strong, the information image overlapped by the head-up display is not bright enough to make it difficult to see clearly. This is the main technical problem currently restricting the vehicle-mounted head-up display. [0004] The current technical solution is to project the image onto the front windshield of the car or a transparent flat panel,...

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
IPC IPC(8): G02B27/01
CPCG02B27/0101G02B2027/0118
Inventor 杨毅
Owner 杨毅
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