Front light module

A front-light module and light-spreading technology, which is applied in light guides, optics, optical components, etc., can solve problems such as uneven brightness and darkness, and achieve the effect of improving the uniformity of light output

Inactive Publication Date: 2020-02-07
苏州茂立光电科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The technical problem to be solved by the present invention is to overcome the defects of the non-pure transparent light guide plate in the prior art, which will produce uneven light output when it i

Method used

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Embodiment Construction

[0024] The present invention will be more clearly and completely described below by means of embodiments and in conjunction with the accompanying drawings.

[0025] figure 1 It is a three-dimensional schematic diagram of a reflective display screen in this embodiment, figure 2 It is a schematic plan view of the light guide plate body and the LED light bar in this embodiment. Such as Figure 1~2 As shown, the front light module involved in this embodiment is used to lay on a reflective display screen 2, the front light module has a light guide plate body 1, and the light guide plate body 1 has a light incident surface 10, and the light incident surface 10 Corresponding to an LED light bar 3, it is arranged to receive side-entering light. Among them, in order to facilitate the light emission and provide uniform light for the reflective display screen 2, a dot microstructure can be provided on the bottom or top surface of the light guide plate body 1 to facilitate guiding lig...

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Abstract

The invention provides a front light module, which is used to be laid on a reflection-type display screen. The front light module is provided with a light guide plate main body; the light guide platemain body is provided with a light-in surface; the light-in surface is arranged corresponding to an LED light bar so as to receive the lateral light; the light guide plate main body is made of the bluish material, and the yellowing index thereof is 3-3.7; a plurality of light-spreading micro structures are laid on the light-in surface of the light guide plate main body; the light-spreading micro structures are arranged continuously; each light-spreading micro structure is a convex structure, and the top thereof is provided with an arc section; an inclined straight segment shape is arranged oneach of two sides of the bottom; and, the included angle between random two adjacent inclined straight segments of the bottom of each light-spreading micro structure is 45-55 DEG. Thus, the light guide plate with the bluish property can effectively eliminate the hot spot phenomenon by the light-spreading micro structures, so as to improve the light-out uniformity when being applied.

Description

technical field [0001] The invention relates to the field of light guide products, in particular to a front light module. Background technique [0002] Due to its excellent light guiding performance, the light guide plate is currently widely used in various display devices or lighting fixtures. The light guide plate is mostly used with a point light source such as LED. The light guide plate can guide the light incident from the point light source into it by destroying the total reflection to form a uniform surface light source, which can then achieve lighting or provide light for display equipment. to display the functions and effects of the screen. [0003] In the application field of display devices, the light guide plate can also be classified into a backlight module disposed on the bottom side of the display screen or a front light module disposed on the top side of the display screen according to the type of the display screen. Based on the difference in the installat...

Claims

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Application Information

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IPC IPC(8): G02B6/00
CPCG02B6/002G02B6/0023G02B6/0065
Inventor 李文妤
Owner 苏州茂立光电科技有限公司
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