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Backlight module of single light source

A backlight module, light source technology, applied in the direction of light source, electric light source, point light source, etc., to achieve the effect of uniform brightness and brightness

Active Publication Date: 2013-02-13
SHANGHAI XIANGLONG ELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0016] How to solve the following problems is what technicians have to face: to solve the structure of the traditional wedge-shaped light guide plate of the existing backlight module, when a single light source projects light from the side with the largest thickness to the opposite side and enters the light guide plate, or from the When one corner of the light guide plate projects light into the light guide plate, it cannot effectively achieve sufficient uniformity and brightness on the light-emitting surface

Method used

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  • Backlight module of single light source
  • Backlight module of single light source
  • Backlight module of single light source

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Embodiment Construction

[0032] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

[0033] The main feature of the present invention is that a single light source is installed at a position on the side of the light guide plate, and the thickness of each point of the light guide plate decreases in proportion to the distance between the light incident surface and the point.

[0034] The technical means of the present invention is to provide a light guide plate and a light source, and form a light incident surface at a position on the side of the light guide plate. The thickness of the light incident surface is the largest. The greater the distance extended by the position, the smaller the thickness. By using only a single light source to project light from the light incident surface into the light guide plate, uniform brightness and luminance can be presented on the light exit surface of the light guide plate.

[0035] As an opti...

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Abstract

The invention relates to a backlight module of a single light source, comprising a light guide plate and a light source, wherein an incident light surface is formed at one position on the side edge of the light guide plate; the thickens of each point position of the light guide plate is reduced in direct proportion according to the increase of distances between the incident light surface and the point positions; and the light source arranged on the incident light surface can show uniform brightness on an emergent light surface of the light guide plate when casting light rays into the light guide plate for transmission.

Description

technical field [0001] The invention relates to a backlight module, in particular to a light guide plate structure of the backlight module. Background technique [0002] The application of backlight modules is very common. For example, notebook computers, monitors, mobile phones, LCD TVs, ... and other electronic devices whose displays do not emit light all need backlight modules to provide light sources. [0003] A general backlight module includes a light guide plate and a light source. For electronic products that require a thin body, LEDs are usually used as the light source, and the light source is placed on the light incident surface on the side of the light guide plate. One side is provided with a reflective sheet, and the opposite second side is used as a light-emitting surface and is provided with a plurality of optical films composed of a diffusion sheet and an enhancement sheet. The light emitted by the light source is projected into the light guide plate from th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/13357F21S8/00F21V8/00F21V19/00F21Y101/02
Inventor 苏东权
Owner SHANGHAI XIANGLONG ELECTRONICS TECH