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Light guide plate with annular microprism structure and manufacturing method thereof

A manufacturing method and technology of light guide plates, which are applied in the field of light guide plates, can solve problems such as the inability to guarantee the shape and size accuracy of the microprism array structure and processing quality, and the inability to process mirror surfaces with high-precision shapes, so as to achieve mass production and manufacturing, shape The effect of controllability and improvement of utilization efficiency

Inactive Publication Date: 2019-04-26
SHENZHEN UNIV
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  • Description
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  • Application Information

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Problems solved by technology

[0004] The object of the present invention is to provide a light guide plate with a ring-shaped microprism structure and its manufacturing method, to solve the problem that the microprisms on the light guide plate cannot be used for processing in the prior art due to the electrochemical etching process. The mirror surface of the precision shape, and the technical problems of the shape and size accuracy and processing quality of the microprism array structure processing cannot be guaranteed

Method used

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  • Light guide plate with annular microprism structure and manufacturing method thereof
  • Light guide plate with annular microprism structure and manufacturing method thereof
  • Light guide plate with annular microprism structure and manufacturing method thereof

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specific Embodiment approach

[0053] Further, as a specific implementation of the method for manufacturing a light guide plate with a ring-shaped microprism structure: before the above step S200, a step S210 is also included:

[0054] S210. According to the size requirement of the light guide plate 30, design the size of the mold core 20 of the light guide plate.

[0055] Among them, the size of the light guide plate 30 is usually determined according to the size of the display screen, etc., and then the size of the light guide plate mold core 20 is cut according to the size of the light guide plate 30. The second annular microprism on the light guide plate 30 of different sizes The arrangement density of 32 is different. Specifically, in this embodiment, the light guide plate 30 is cylindrical, the surface diameter of the light guide plate 30 is 70 mm, and the thickness is 3 mm.

[0056] Further, as a specific implementation of the method for manufacturing a light guide plate with a ring-shaped micropris...

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Abstract

The invention discloses a light guide plate with an annular microprism structure and a manufacturing method thereof, and the method comprises the steps: A, machining a diamond turning tool with a required shape according to the shape of a second annular microprism of a light guide plate to be machined; B, a diamond turning tool is used for turning the surface of the light guide plate mold core, first annular micro grooves are machined in the surface of the light guide plate mold core, and a first annular micro prism is formed between every two adjacent first annular micro grooves; and C, adding an acrylic powder material into the light guide plate mold core for micro-injection molding to manufacture the light guide plate with the annular microprism array structure.

Description

technical field [0001] The invention belongs to the technical field of light guide plates, and more specifically relates to a light guide plate with an annular microprism structure and a manufacturing method thereof. Background technique [0002] At present, for small and thin backlight modules, LED side-light lighting is mostly used, and the light guide plate is an indispensable structure. The main function of the light guide plate is to convert the line light source on the incident surface into a surface light source to emit from the exit surface. Usually, dots are arranged on the lower surface of the light guide plate. When the light hits the dots on the light guide plate, the dots will scatter the incident light and reflect it in various directions, and finally emit from the exit surface of the light guide plate. There are few types of dot designs on traditional light guide plates. Usually, the dots are uniformly arranged or the dots gradually increase or decrease along ...

Claims

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Application Information

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IPC IPC(8): G02B6/00
CPCG02B6/0025G02B6/0036G02B6/0065B29C33/424B29D11/00663B29D11/00932B29K2905/10B29L2011/00B29L2031/756B29C33/3842B29K2033/12G02B6/0038
Inventor 鲁艳军伍晓宇周超兰陈福民吴稳张国静
Owner SHENZHEN UNIV
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