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Light conducting plate ejection and shaping module

A technology of injection molding and light guide plate, which is applied in the direction of optics, optical components, household appliances, etc., can solve the problems of poor optical uniformity, excessive pressure and temperature concentration of finished products, etc., to reduce the concentration of temperature and pressure, reduce the speed, and improve the rotation speed writing effect

Inactive Publication Date: 2008-03-26
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the problems of poor optical uniformity and excessive pressure and temperature concentration of the finished product in the prior art light guide plate injection molding mold, the present invention provides a light guide plate injection molding mold that can increase the uniformity of the finished product and improve the uniformity of pressure and temperature distribution

Method used

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  • Light conducting plate ejection and shaping module
  • Light conducting plate ejection and shaping module
  • Light conducting plate ejection and shaping module

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Embodiment Construction

[0012] Please refer to FIG. 2 , which is a schematic cross-sectional view of a light guide plate manufacturing system using the light guide plate injection molding mold of the present invention. The system 28 includes an injection device 100 and a mold 120 . The injection device 100 includes an injection barrel 101 , a driving screw 102 rotatable in the injection barrel 101 , a motor 103 , a feed port 104 and a heater 105 disposed on the outer surface of the injection barrel 101 . The mold 120 includes a mold core (not shown), a male mold 121 and a female mold 122, and the male mold 121 includes a runner 125, a gate 123 and a gate structure 127 on the side of the gate 123, wherein the male mold 121 and the female mold A mold cavity 126 for forming a product is formed between 122 , and the female mold 122 includes an inclined surface 1262 relative to the mold cavity 126 . The mold core is located on the slope 1262 .

[0013] The material of the mold 120 is conventional metal w...

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Abstract

The light guiding board jetting and forming mold includes one light guiding board punch, one male mold and one female mold. The female mold has one S-shaped runner and one edged sprue, and the light guiding board punch is between the male mold and the female mold.

Description

【Technical field】 [0001] The invention relates to a mold, in particular to a light guide plate injection molding mold. 【Background technique】 [0002] Since the liquid crystal display panel itself does not have luminous properties, its light source device must be able to provide it with uniform planar light in order to obtain good visual effects. The light source device usually includes a light source (linear light source such as a cold cathode tube, or a point light source such as a light emitting diode), a light guide plate and a reflector. The working principle is that the light emitted by the light source directly or indirectly enters the light guide plate and propagates through the The reflections from the bottom surface of the designed light guide plate and the reflection plate are diffused and emitted at a certain angle, and evenly distributed in the light-emitting area, and then the diffusion plate and the prism plate are used to adjust the viewing angle of the light...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/1335B29C45/27B29D11/00G02F1/13357
Inventor 余泰成吕昌岳陈杰良
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD