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Diffusing lens

A light-concentrating sheet and diffusion surface technology, applied in the field of light-condensing sheets, can solve problems such as time-consuming and easy to be found, and achieve the effects of reducing the chance of occurrence of moire, increasing the production pass rate, and reducing the dispersion of light

Inactive Publication Date: 2008-04-02
OPTIVISION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] Most of the above-mentioned concentrating sheets with a light-diffusing layer make the finished concentrating sheet further processed to make a rough surface layer at the bottom, which is more labor-intensive.
And the side of the concentrating sheet with a plurality of parallel prism columns is relatively smooth, if there is a defect, it is easier to be found, and it is considered as a defective product

Method used

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Embodiment Construction

[0025] For the purpose and effect of the present invention, please refer to the accompanying drawings and the embodiments, and the detailed description is as follows.

[0026] See Figures 5, 6, and 7. The diffusing condensing sheet of the present invention is used to reduce the light dispersion phenomenon of the prism column and the probability of occurrence of moire, and help to improve the production qualification rate. The light diffusing and concentrating sheet 30 according to the embodiment of the present invention includes: a base material 31 for light to pass through. A surface of the substrate 31 includes a plurality of longitudinally arranged elongated prism columns 32 and a plurality of elongated rough diffusion surfaces 33; at least two adjacent prism columns 32 have elongated and rough diffusion surfaces 33; Each prismatic column 32 has a ridgeline 321, a first side surface 322 and a second side surface 323 respectively; the ridgeline 321 is placed at the highest ...

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Abstract

The invention relates to a diffusion condenser, wherein, a long strip rough diffusion side is arranged between two closed prism pillars. The mixing of the ray diffused from the diffusion face between two prism pillars and the ray emitted from the prism pillar can effectively reduce light color diffusion phenomenon and strip in pulverization of prism pillars, reduce occurrence of overlapped trace and increase producing qualification rate of the condenser. The base material, a plurality of long strip prism pillars of longitudinal arrangement and rough diffusion side of long strip shape are forming in one piece so as to be made easily.

Description

technical field [0001] The present invention relates to a condensing sheet, in particular to a backlight system for a liquid crystal display (LCD, Liquid Crystal Display) or other required diffusion concentrating sheets. Background technique [0002] See Figure 1. The backlight system of a general liquid crystal display includes a cold cathode lamp (CCFL) 11, a light guide plate (LGP) 12, a bottom diffuser (Bottom diffuser) 13, a concentrator (Prismsheet) 14, an upper diffuser (Top diffuser) 15 and A reflector (Reflector) 16 is formed. [0003] See Figure 2. The conventional condensing sheet 14 is composed of a plurality of longitudinally parallel triangular prism rods 141 and a substrate 142 . The prismatic column 141 is bonded to one side of the substrate 142 . The height and width of each prismatic column 141 are the same, and the ridgeline of the prismatic column 141 has the same height, the direction is a straight line, and the slopes on both sides of the ridgeline ...

Claims

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Application Information

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IPC IPC(8): G02B5/00G02F1/1335
Inventor 郭浩然
Owner OPTIVISION TECH