Prism lens

A technology of prism sheet and triangular pyramid, which is applied in the field of prism sheet of backlight module, can solve the problems of increasing the number of light interfaces, light loss, reducing light utilization rate, etc.

Inactive Publication Date: 2009-09-30
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the light is transmitted in the upper diffusion sheet 14, part of the light will be absorbed by the upper diffusion sheet 14 and cause part of the light loss; and the use of the upper diffusion sheet 14 will also increase the number of interfaces in the transmission process of the light, thereby increasing the light transmission. Therefore, the use of the upper diffusion sheet 14 will reduce the utilization rate of light and reduce the brightness of the backlight module 100.

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
  • Prism lens
  • Prism lens
  • Prism lens

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] The prism sheet of the present invention will be further described in detail below with reference to the drawings and embodiments.

[0018] See Figure 3 to Figure 4 , shows the prism sheet 20 according to the preferred embodiment 1 of the present invention, which is composed of a transparent body, and the transparent body includes a first surface 201 and a second surface 203 opposite to the first surface 201 . The first surface 201 is a plane, and the second surface 203 has a plurality of triangular pyramid grooves 204 . There are four triangular pyramid grooves 204 having a common connection point and these four triangular pyramid grooves 204 form a parallelogram shape.

[0019] The plurality of triangular pyramid grooves 204 on the second surface 203 are closely connected, and there are four interconnected triangular pyramid grooves 204 with a common connection point and their interconnected side walls to form a four-pointed star shape 206 . A plurality of four-poi...

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
thicknessaaaaaaaaaa
Login to view more

Abstract

The invention relates to a prism lens which comprises a transparent body, wherein the transparent body comprises a first surface and a second surface which corresponds to the first surface. The first surface of the transparent body is a plane, and the second surface is provided with a plurality of triangular pyramid grooves, wherein four triangular pyramid grooves are provided with common connection points and form a parallelogram. The prism lens has the advantages of improving the effective utilization rate of light rays and emitting uniform light rays.

Description

technical field [0001] The invention relates to a prism sheet, in particular to a prism sheet used for a backlight module. Background technique [0002] See figure 1 and figure 2 , shows an existing direct-lit backlight module 100, which includes a frame 11, a plurality of light sources 12 arranged inside the frame 11, a diffusion plate 13 arranged above the light sources 12 and covering the frame 11, and A prism sheet 10. Wherein, the diffusion plate 13 generally contains scattering particles for diffusing light. The prism sheet 10 includes a transparent substrate 101 and a prism layer 103 formed on the transparent substrate 101 . The prism layer 103 has a plurality of elongated V-shaped protrusions 105 . [0003] When in use, the light generated by the plurality of light sources 12 enters the diffuser plate 13 and is uniformly diffused, then continues to enter the prism sheet 10, and under the action of the elongated V-shaped protrusions 105 of the prism sheet 10, th...

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): G02B5/04G02B1/04G02F1/13357
CPCG02B5/0278G02B5/0242G02F2001/133607G02B5/045G02F1/133607
Inventor 章绍汉
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