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A sawtooth process for solving the yellowing of the backlight LED side

A sawtooth and backlight technology, applied in the field of light guide plates, can solve the problems of yellowing of the backlight LED, easy to be perceived by the naked eye, and yellowish visual effect, so as to achieve sufficient light mixing, good diffuse reflection effect, and increase the effect of light diffuse reflection.

Active Publication Date: 2021-10-15
SHENZHEN LONGLI TECH CO LTD
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  • Description
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Problems solved by technology

[0005] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a sawtooth process to solve the yellowing of the backlight LED side, which can prevent the light emitted by the LED from passing through the regular prism surface, causing dispersion phenomenon, and the wavelength of the yellow light is just in the middle , wide domain, easy to be felt by the naked eye, resulting in a yellowish visual effect

Method used

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  • A sawtooth process for solving the yellowing of the backlight LED side
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  • A sawtooth process for solving the yellowing of the backlight LED side

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Embodiment Construction

[0034] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0035] refer to figure 2 , a sawtooth process for solving the yellowing of the backlight LED side disclosed by the present invention, comprising the following steps:

[0036] Step S1: Mold 1 is processed, and the mold 1 is processed according to the drawings. Among them, the mold 1 includes the serrated insert 2. Firstly, the serrated insert 2 is processed into the shape by slow wire walking. Refer to image 3 and 4 , the sawtooth insert 2 consists of two parts: block A21 and block B22. The length, width and height of block B22 leave a margin of 0.1 mm, and then use a grinder to grind off the margin on the surface of block B22 to obtain the size required by the drawing. A21 directly cuts out the size and shape. By cutting out the block A21, leave room for the machining of the serrated surface 3.

[0037] Step S2: Process the sawtooth surface 3 on the bl...

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Abstract

The invention relates to a sawtooth process for solving the yellowing of the side of the backlight LED. The process includes step S1: mold processing, processing the mold according to the drawings; step S2: processing the sawtooth surface, using slow wire-feeding to form the sawtooth surface on the mold, And complete the roughening process on the sawtooth surface; step S3: injection molding, install the mold on the injection molding machine for injection molding, and then cool and form to obtain the light guide plate with the roughened serrated surface. In the present invention, the sawtooth surface is processed by slow wire walking, and the pulse spark discharge will erode the sawtooth surface. While cutting the sawtooth, the surface of the sawtooth surface is roughened by electric discharge machining, so that the surface of the sawtooth surface is rough and irregular, and the dispersion of the prism is destroyed. Increase the diffuse reflection of light, so that the light is mixed more fully after entering the light guide plate, so that the light emitted from the LED side is more uniform, and thus effectively avoiding the phenomenon of yellowish.

Description

technical field [0001] The invention relates to the technical field of light guide plates, in particular to a sawtooth process for solving the yellowing of the backlight LED side. Background technique [0002] The backlight module is the provider of the light source for the liquid crystal display (LCD). The LCD itself does not emit light. The performance of the light source of the backlight module determines the visual sense of the LCD. A light guide plate is arranged in the backlight module, and the light guide plate is the propagation medium of the light source of the backlight module, and has the function of converting the point light source into a surface light source. [0003] The smartphone adopts a side-type backlight module. The LED light source of the side-type backlight module is located on one side of the light guide plate. The light emitted by the LED propagates in the light guide plate, and the propagation path will be changed and interfered by different surface...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23H1/00B23H3/00G02F1/13357
CPCB23H1/00B23H3/00G02F1/133615
Inventor 柯清维周彬柯钊
Owner SHENZHEN LONGLI TECH CO LTD
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