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Light guide plate and backlight mould provided with same

A technology of backlight module and light guide plate, which is applied in the field of backlight module, can solve the problems of light diffuse reflection and light leakage, and achieve the effects of low cost, simple production and improved optical grade

Inactive Publication Date: 2014-05-21
TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the interface between the side reflector 400 and the light guide plate 400 is not a smooth interface, the light will be diffusely reflected at this interface, resulting in light leakage.

Method used

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  • Light guide plate and backlight mould provided with same
  • Light guide plate and backlight mould provided with same
  • Light guide plate and backlight mould provided with same

Examples

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Effect test

Embodiment Construction

[0033] In order to further illustrate the technical means adopted by the present invention and its effects, the following describes in detail in conjunction with preferred embodiments of the present invention and accompanying drawings.

[0034] see Figure 5 The light guide plate 10 according to an embodiment of the present invention includes: a body 12 and a metal layer 14 disposed on the body 12, the body 12 includes a bottom surface 122, a top surface 124 corresponding to the bottom surface 122, and a top surface 124 located between the bottom surface 122 and the top surface 124 Between several side surfaces 126 , the metal layer 14 is disposed on at least one side of the top surface 124 . The metal layer 14 is used to reflect light, so it is made of metal materials with high reflectivity, such as silver (Ag), aluminum (Al) and so on. The selection of the metal material is set according to the wavelength of light emitted by the light source used in conjunction with the lig...

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Abstract

A light guide plate (10) and a backlight module provided with the light guide plate (10). The light guide plate (10) comprises a body (12) and a metal layer (14) arranged on the body (12); the body (12) comprises a bottom surface (122), a top surface (124) corresponding to the bottom surface (122), and a plurality of side surfaces (126) positioned between the bottom surface (122) and the top surface (124); and the metal layer (14) is arranged on at least one side edge of the top surface (124), and the difference in the reflectance of the metal layer (14) regarding light with the wavelength of 380-780 nm is less than 20%. The metal layer (14) is arranged on the top surface (124) of the light guide plate (10), thus the light entering through the light incident surface of the light guide plate (10) and transmitted to the top surface (124) of the light guide plate (10) is reflected back to the light guide plate (10), so that the light is transmitted in the light guide plate (10), the light leakage is prevented, and then the illumination intensity and illumination uniformity of the light guide plate (10) are ensured; and the manufacture is simple, and the cost is low.

Description

technical field [0001] The invention relates to the field of liquid crystal display, in particular to a light guide plate with a metal layer and a backlight module with the light guide plate. Background technique [0002] A liquid crystal display (LCD, Liquid Crystal Display) has many advantages such as a thin body, power saving, and no radiation, and has been widely used. Most of the liquid crystal display devices currently on the market are backlight liquid crystal display devices, which include a liquid crystal panel and a backlight module. The working principle of the liquid crystal panel is to place liquid crystal molecules between two parallel glass substrates. There are many vertical and horizontal small wires between the two glass substrates. The direction of the liquid crystal molecules is controlled by electrifying or not, and the light of the backlight module is refracted. Come out to generate the picture. Since the liquid crystal panel itself does not emit ligh...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F21V8/00F21S8/00G02F1/13357
CPCG02B6/0091G02F2001/133317G02B6/0055G02B6/0001G02F1/133317
Inventor 胡哲彰贺虎
Owner TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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