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Sawtooth process for solving yellowing of backlight light-emitting diode (LED) side

A sawtooth and backlight technology, applied in the field of light guide plates, can solve the problems of chromatic dispersion, yellowish visual effects, and yellowing of backlight LEDs.

Active Publication Date: 2020-10-20
SHENZHEN LONGLI TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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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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  • Sawtooth process for solving yellowing of backlight light-emitting diode (LED) side
  • Sawtooth process for solving yellowing of backlight light-emitting diode (LED) side
  • Sawtooth process for solving yellowing of backlight light-emitting diode (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 yellowing of a backlight light-emitting diode (LED) side. The process comprises the steps of S1, processing a mould: processing the mould according to a drawing requirement; S2, processing a sawtooth surface: processing to form the sawtooth surface on the mould by adopting a slow-feeding manner, and finishing roughening the sawtooth surface;and S3, carrying out injection molding: installing the mould on an injection molding machine for carrying out injection molding, and then cooling and forming to obtain a light guide plate with the roughened sawtooth surface. According to the sawtooth process for solving yellowing of the backlight LED side provided by the invention, the sawtooth surface is processed by adopting the slow-feeding manner, pulsed spark discharge can erode the sawtooth surface, the surface of the sawtooth surface is roughened by using discharge processing when sawteeth are cut at the same time, the surface of the sawtooth surface is rough and irregular, the dispersion of a prism is broken up, and the diffuse reflection of light is increased, so that light enters the light guide plate so as to be sufficiently mixed, light emitted from the LED side is more uniform, and the occurrence of the phenomenon of yellowing is further effectively avoided.

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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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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