Polarized light converter, method for fabrication and backlight component

A technology of backlight module and manufacturing method, which is applied to optics, instruments, optical components, etc., can solve problems such as time-consuming, difficult material selection, cumbersome assembly, etc., and achieve the effect of simple manufacturing method, easy material selection, and simple structure

Inactive Publication Date: 2007-02-07
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
View PDF0 Cites 33 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] But when a certain interval 19 is reserved between the two opposite surfaces 163, 183 of several upward and downward microprisms 162, 182, a positioning mechanism is required to locate the downward prism plate 18 when assembling, so as to be used to align with the upward prism plate. Keep a certain interval 19 between 16, so there are problems such as complex structure, cumbersome assembly, more time-consuming, higher positioning accuracy requirements; 0.2, so there is a problem that it is difficult to select materials during manufacturing
[0007] When several upward and downward microprisms 162, 182 do not reserve the interval 19, then it is required that the materials of the upward prism plate 16 and the downward prism plate 18 are different, and their refractive index difference will be set between 0.001 and 0.2. The structure has the problem of difficult material selection during manufacture

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
  • Polarized light converter, method for fabrication and backlight component
  • Polarized light converter, method for fabrication and backlight component
  • Polarized light converter, method for fabrication and backlight component

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] The polarized light converter, the manufacturing method of the polarized light converter and the backlight module using the polarized light converter of the present invention will be further described in detail below with reference to the accompanying drawings.

[0018] see figure 2 The polarized light converter 21 of the present invention includes an upper prism plate 211 with several microprisms 215 , a lower prism plate 212 with several microprisms 213 and a polarization splitting film 214 . Some microprisms 213 vertex angle α of lower prism plate 212 are 90 degree, and this upper and lower prism plate 211,212 materials are identical, can be glass or plastic translucent material, and this polarized light splitting film 214 material is magnesium difluoride ( MgF 2 ), silicon dioxide (SiO 2 ), tantalum pentoxide (Ta 2 o 5 )Wait. The upper and lower prism plates 211, 212 sandwich the polarizing beam splitting film 214 therebetween and combine to form an integrated...

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

PropertyMeasurementUnit
angleaaaaaaaaaa
Login to view more

Abstract

The related back light module comprises: a guide plate with an incidence plane and an opposite emergent plane and bottom plane, a light source on one side of incidence plane, a 1/4 slide between the plate and reflector, a reflector on the bottom plane, and a polarization light converter with the first/second lens plate and polarization splitting film near the emergent plane, wherein the lenses of the first and second lens plates engage with each other to clamp the light splitting film together. This invention has simple structure and convenient to assemble.

Description

【Technical field】 [0001] The invention relates to a polarized light converter, a manufacturing method of the polarized light converter and a backlight module using the polarized light converter. 【Background technique】 [0002] Since the liquid crystal display is a non-luminous display device, a backlight module is required to produce a display function. The performance of the backlight module often directly affects the image quality of the liquid crystal display, so the backlight module becomes a more important component in the liquid crystal display. With the expansion of liquid crystal displays in the application fields such as mobile phones, car displays, personal digital assistants (Personal Digital Assistant, PDA) and televisions, higher requirements are put forward for backlight modules, mainly in: high brightness, low cost, Low energy consumption, light and thin, etc. [0003] see figure 1 A prior art backlight module 10 includes a light guide plate 12 , a light so...

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): G02F1/1335
CPCG02B27/285
Inventor 张仁淙
Owner HONG FU JIN PRECISION IND (SHENZHEN) 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