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Light guide plate and backlight module

A technology of backlight module and light guide plate, which is applied in the direction of optics, light guide, electric light source, etc., can solve the problems of high cost of machining grooves, cumbersome dot design, and increase of product cost, so as to improve the competitiveness of enterprises and shorten the time of mixed light Effects of distance and product cost reduction

Inactive Publication Date: 2013-10-30
KUNSHAN KONKA ELECTRONICS
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Problems solved by technology

However, these two methods either reduce the effective display area of ​​the liquid crystal display, or increase the number of LEDs, which increases the cost of the product
[0004] Therefore, people began to design dots or machine grooves on the light incident surface of the light guide plate, but the dot design is cumbersome and the verification time is long; the cost of machining the grooves is high and the time is long, and the backlight cannot be quickly and effectively improved. firefly phenomenon

Method used

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  • Light guide plate and backlight module
  • Light guide plate and backlight module
  • Light guide plate and backlight module

Examples

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Embodiment Construction

[0022] A light guide plate 1, such as figure 1 , 2 As shown, an optical film layer 3 is pasted on the light incident surface 2 of the light guide plate 1 , and the optical film layer 3 is provided with several grooves 4 on the side away from the light guide plate 1 . In this embodiment, several grooves are distributed periodically and regularly in the same structural unit, and the shape of each groove is a zigzag shape with a pointed apex. Of course, several grooves can also be distributed in regular combination of different structural units, and the shape of the grooves can also be zigzag with rounded corners.

[0023] A backlight module, such as image 3 As shown (only part of the components are drawn), it includes a substrate 6, an LED light source 5 and the above-mentioned light guide plate 1, and the optical surface of the zigzag groove 4 is attached to the light incident surface of the light guide plate 1, that is, the side surface close to the LED light source 5. The...

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Abstract

The invention discloses a light guide plate. The light guide plate has at least one surface of incidence, wherein an optical thin film layer is adhered onto the surface of incidence; and a plurality of trenches are disposed in one side face of the optical thin film layer, the side face being far away from the light guide plate. The light guide plate is simple in structure and convenient for processing, and can rapidly improve a firefly problem of a lateral LED liquid crystal display screen.

Description

technical field [0001] The invention relates to a light guide plate and a backlight module, in particular to a light guide plate used for a liquid crystal display and a backlight module equipped with the light guide plate. Background technique [0002] With the development of science and technology, liquid crystal displays are becoming more and more mature. As a passive light-emitting display, liquid crystal displays generally require a backlight module to provide a light source. Compared with CCFL light sources, LEDs are used as point light sources. Generally, multiple discontinuous LEDs are arranged in a line to replace linear CCFL light sources. LED not only has the advantages of thinness, power saving, small size, long life, low voltage, fast startup, etc., but also has the concept of environmental protection. However, in an edge-lit backlight module using LEDs as a light source, there will be obvious effective light-emitting areas alternately bright and dark near the ...

Claims

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Application Information

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IPC IPC(8): G02B6/00G02B5/04F21S8/00F21V8/00G02F1/13357
Inventor 白占良
Owner KUNSHAN KONKA ELECTRONICS
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