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Large-size light guide plate

A light guide plate, large-size technology, applied in the field of light guide plate, can solve problems such as unreachable use requirements, uneven brightness of light guide plate, etc.

Inactive Publication Date: 2014-01-29
厦门伟然科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a large-size light guide plate to solve the problem that the existing light guide plate has serious uneven brightness when facing light from four sides and cannot meet the use requirements

Method used

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  • Large-size light guide plate
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  • Large-size light guide plate

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Effect test

Embodiment Construction

[0029] In order to further explain the technical solution of the present invention, the present invention will be described in detail below through specific examples.

[0030] Such as image 3 with Figure 4 As shown, a large-sized light guide plate 100 involved in the present invention includes a plate body 1 and silk screen dots 2 on the reflective surface of the plate body. The plate body 1 has four sides 3 that allow light to enter. Please refer to image 3 As shown, light enters the four sides 3 at the same time, and the light enters along a direction perpendicular to the corresponding side.

[0031] see Figure 4 As shown, the plate body 1 is divided into four parts, specifically, it is formed by equal parts along the perpendiculars of the four sides of the reflective surface. Figure 4 Among them, the board body includes 4 parts in total, namely S1, S2, S3 and S4, and the screen printing dot 2 includes four dot matrix units with the same structure, which are respecti...

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Abstract

The invention discloses a large-size light guide plate. A plate body is equally divided into four parts. Silk-screen lattice points on the plate body are divided into four point units. The reflecting face of each plate part is divided into an L-shaped area and a large rectangular area. The L-shaped area is located at the connection of the plate part and the adjacent plate body. The large rectangular area is divided into a first right triangle area and a second right triangle area. Each point unit comprises silk-screen graded area in the first right triangle area, a silk-screen snap in the second right triangle area and an invariable area in the L-shaped area. Lattice points in the graded area and the snap area are arrayed and distributed on the light entering direction of two sides; wherein, diameters of the lattice points are increased gradually along the light entering direction of the two sides, and change values of the graded area are smaller than that of the snap area. Diameters of the lattice points in the invariable area are increased gradually on the direction of the light entering direction of the contacting side face of each area, and the diameters of the lattice points are constant on the direction of the light entering direction of the non-contacting side face. By the aid of the large-size light guide plate, light irradiating effect and light irradiating efficiency are guaranteed.

Description

technical field [0001] The present invention relates to the field of light guide plates, and more specifically relates to a large-size light guide plate. In a state of large size, the luminance of the formed surface light source still has relatively high uniformity. Background technique [0002] The light guide plate is a key component in the background light source of a color liquid crystal display or an LED panel light. Its main function is to convert a point light source or a line light source into a surface light source. The quality of the light guide plate directly affects the picture quality or luminous effect. In order to increase the light extraction efficiency and improve the uniformity of light diffusion, the existing light guide plate is generally screen-printed to form a dot matrix or grid on the reflective surface. [0003] When screen printing dot matrix or grid, there is currently an overall linear change method. However, for the current situation where light ...

Claims

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Application Information

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IPC IPC(8): G02B6/00
Inventor 定百元蒋汉玉
Owner 厦门伟然科技股份有限公司
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