Light guide plate of PS material and with projection structures

A light guide plate and material technology, applied in the direction of light guide, optics, optical components, etc., can solve the problems of complex processing technology of light guide plate, uneven light output, and difficult processing of groove structure, so as to improve the brightness of light source, uniform light output, The effect of simple structure

Inactive Publication Date: 2016-02-24
CHONGQING LINGCHUANGFU PHOTOELECTRIC TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention proposes a PS material light guide plate with a raised structure, which solves the technical problems in the prior art that the light guide plate processing technology is complex, the groove structure is difficult to process, the light is not uniform, and the dots of light guide ink need to be printed.

Method used

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  • Light guide plate of PS material and with projection structures
  • Light guide plate of PS material and with projection structures
  • Light guide plate of PS material and with projection structures

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The light exit surface 224 is provided with a plurality of spherical protrusions 240 that are staggered and equally spaced and have the same structure. The material of the spherical protrusions 240 is PS material. The diameter and height of the spherical protrusions 240 should be moderate, and the light guide plate body 220 should be too large. Thickness affects the light transmittance. If it is too small, it will affect the scattering effect of the light guide plate body 220 on the light beam 300. After measurement, it is found that when the light guide plate body 220 is made of PS, the diameter of the spherical protrusion 240 is 240-265um and the height is 175- 200um is the best; in addition, the distance between adjacent spherical protrusions 240 is 295-330um, which is too large to affect the scattering effect of the light guide plate beam 300, and too small will cause mutual interference. In this embodiment, the diameter of the spherical protrusions 240 is 240um, the ...

Embodiment 2

[0027] The structure of this embodiment is the same as that of embodiment 1, but the difference is: the diameter of the spherical protrusion 240 is 252.5um, the height of the spherical protrusion 240 is 187.5um, and the distance between adjacent spherical protrusions 240 in each row and column It is 312.5um, and the thickness of the light guide plate body 220 is 2.5mm.

Embodiment 3

[0029] The structure of this embodiment is the same as that of embodiment 1, but the difference is that the diameter of the spherical protrusion 240 is 265um, the height of the spherical protrusion 240 is 200um, and the distance between adjacent spherical protrusions 240 in each row and column is 330um. , The thickness of the light guide plate body 220 is 3.0 mm.

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Abstract

The invention provides a light guide plate of a PS material and with projection structures. The light guide plate comprises a light guide plate body; the light guide plate body includes a light input surface, a light output surface and a bottom surface, wherein a light beam is guided into the light guide plate body via the light input surface, the light input surface is placed in the lateral portion of the light guide plate body, the light beam is guided out of the light guide plate body via the light output surface, and the bottom surface of a planar structure is opposite to the light output surface; multiple spherical projections which are molded with the light guide plate body in an integrated manner are arranged at the light output surface in an array, the spherical projections in the array are arranged in rows and columns in a staggered manner, and the spherical projections are made of the PS material; and the diameter of each spherical projection ranges from 240-265 micron, the height of the spherical projection ranges from 175 to 200 micron, and the spacing between the adjacent spherical projections in each row / column ranges from 295 to 330 micron.

Description

Technical field [0001] The invention relates to a PS material light guide plate with a convex structure for a liquid crystal display. Background technique [0002] In recent years, with the increase in color and size of liquid crystal displays, its application fields have become more extensive, such as notebooks, various desktop computers, and LCD TVs. Because the liquid crystal itself does not have light-emitting characteristics, and therefore, does not achieve the display effect, it is necessary to provide a light source system as the light source of the display, such as a backlight module. The backlight module mainly includes a light guide plate, a light source, a reflective sheet and one or more optical films. Among them, the light guide plate is an important component of the backlight module. It is used to guide the transmission direction of the light beam emitted from the light source, convert the line light source or point light source into a surface light source and emit ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B6/00G02F1/13357
CPCG02B6/0036G02F1/133606
Inventor 郭志强程媛媛
Owner CHONGQING LINGCHUANGFU PHOTOELECTRIC TECH
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