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

Backlight device for dual-view display

A technology of backlight module and display, which is applied in the direction of instruments, optics, nonlinear optics, etc., and can solve problems such as easy damage

Active Publication Date: 2009-04-01
INNOLUX CORP
View PDF2 Cites 15 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Figure 6c of Patent Document 2 shows a structure in which a pair of prism sheets are arranged in the direction in which the prism shapes face each other. If the structure is as shown above, since the prism vertices of the prism sheets are in contact with each other, it may be easily damaged. shortcoming

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
  • Backlight device for dual-view display
  • Backlight device for dual-view display
  • Backlight device for dual-view display

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0054]Next, preferred embodiments of the present invention will be described in detail according to the drawings, but the present invention is not limited thereto.

[0055] First, a simulation is performed on the influence of the horizontal brightness directivity of the prism apex angles of a pair of prism sheets. no need to change figure 1 In addition, the apex angle of the second prism sheet 15 is also fixed at 90°, and the simulation results of the luminance directivity characteristics when the apex angle of the first prism sheet 14 is changed from 75° to 100° are shown in Fig. 4 and Figure 5. Fig. 4 shows the luminance directivity characteristics when the prism apex angle is changed at 5° intervals between 75° and 100°, and Fig. 5 shows that the prism apex angle is changed at 1° intervals between 85° and 95° The luminance directivity characteristic of time. It can be seen from FIG. 4 and FIG. 5 that when the apex angle of the first prism sheet 14 is 80°-95°, preferably...

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 backlight module which is used for double-vision display, wherein the backlight module comprises the following components: a light source; a light conducting plate which homogenizes, conducts and diffuses the incidence light of light source; a diffusing piece which is configured between the light conducting plate and the liquid crystal panel; a pair of glass prism pieces which are configured between the diffusing piece and the liquid crystal panel; and a reflecting piece. The invention is characterized in that the surface formed by one glass prism of the glass prism piece arranged at the side of diffusion piece in the pair of glass prisms faces the diffusion piece, and furthermore the glass prism axes (ridges of the glass prism) are configured in parallel in the vertical direction relatively to the liquid crystal picture. The surface formed by the glass prism of the other glass prism piece at the side of liquid crystal panel in the pair of glass prisms faces the liquid crystal panel, and furthermore the glass prism axes (ridges of glass prism) are configured consistent in horizontal direction relatively to the liquid crystal picture.

Description

technical field [0001] The invention relates to a backlight module of a dual-view display for vehicles. Background technique [0002] Known displays are used to provide high-quality images when multiple observers observe the picture from multiple directions at the same time. For example, displays used in airports, railway stations, arenas, etc. are preferably viewed from all angles and have high brightness in a wide viewing angle. [0003] On the other hand, there are also cases where each observer has to view each different image from the same display. For example, in a car, it is more convenient if the driver watches the car navigation system while the passenger in the passenger seat can enjoy images such as movies. In order to meet the needs as described above, a dual-view display has been developed. A dual-view display can display two different images at the same time, with each image viewed only from a specific direction. [0004] Figure 10 Displays a dual-view dis...

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): G02F1/13357G02F1/1335
Inventor 那须康介陆斯曼·亨德利克
Owner INNOLUX CORP
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