Light guide plate and backlight module
A technology of backlight module and light guide plate, applied in the direction of light guide, optics, electric light source, etc., can solve the problem of uneven brightness, achieve the effect of uniform light brightness and avoid hot spot phenomenon
Inactive Publication Date: 2013-02-06
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Problems solved by technology
[0003] However, the use of high-power light-emitting diodes is likely to cause hot-spot problems of uneven brightness, which need to be improved
Method used
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[0016] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.
[0017] Before the present invention is described in detail, it is noted that in all the following drawings, like components are indicated by like numerals.
[0018] refer to figure 1 , A preferred embodiment of the backlight module of the present invention includes: a light guide plate 1 , several light emitting units 2 , a reflective sheet 3 , a reflective frame cover 4 and a back plate 5 .
[0019] refer to figure 1 , figure 2 and image 3 The light guide plate 1 includes a main body 11 and several protruding bodies 12 integrally connected with the main body 11 . The body 11 has a light-emitting surface 111 , a bottom surface 112 opposite to the light-emitting surface 111 , and a peripheral surface 113 connecting the periphery of the light-emitting surface 111 and the periphery of the bottom surface 112 . The protruding bodies 12 protrude from...
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A backlight module comprises a light guide plate and a plurality of light emitting units, wherein the light guide plate comprises a body and a plurality of protruding bodies which are integrally connected with the body; the body is provided with a light emergent surface, a bottom surface opposite to the light emergent surface and a circumferential surface connected with the circumferential edge of the light emergent surface and the circumferential edge of the bottom surface; the protruding bodies protrude outwards from the circumferential surface of the body in a mutually interval way; each protruding body is provided with a light incident surface and a reflecting surface; and the light incident surface and the reflecting surface respectively extend from the circumferential surface and are connected at the tail end. The light emitting units are respectively and correspondingly arranged at the light incident surfaces of the protruding bodies; and light emitted by each light emitting unit radiates into the corresponding light incident surface of each protruding body, is reflected by the corresponding reflecting surface to enter the body and is emitted by the light emergent surface of the body. Therefore, the hot spot phenomenon caused by local light concentration is avoided.
Description
technical field [0001] The invention relates to a light guide plate and a backlight module, in particular to a side-entry light guide plate and a backlight module. Background technique [0002] With the continuous evolution of display technology, 3D liquid crystal displays have been commercialized at present. Compared with general 2D displays, 3D liquid crystal displays require higher brightness backlight modules, and most of the light sources are high-power light-emitting diodes. [0003] However, the use of high-power light-emitting diodes is likely to cause hot-spot problems of uneven brightness, which need to be improved. Contents of the invention [0004] The object of the present invention is to provide a light guide plate that can improve the uniformity of brightness to improve the phenomenon of hot spot, and provide a backlight module including the light guide plate. [0005] The backlight module of the present invention includes a light guide plate and several l...
Claims
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Login to View More IPC IPC(8): G02B6/00F21S8/00F21V13/00
Inventor 林忠志王铭禧王荷正邱俊昌
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