Side light type LCD backlight module comprising non-uniform linear light source
A technology of backlight module and line light source, applied in nonlinear optics, optics, light guide, etc., can solve the problems of cumbersome design, high design cost and complex structure of each layer of scattering dots, achieve low cost, improve uniformity, overcome the low light effect
Inactive Publication Date: 2011-07-20
SHANGHAI JIAOTONG UNIV
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Problems solved by technology
The structure described in this method is too complicated, and the design of the scattering dots on each layer is also cumbersome, and the design cost is relatively high
[0007] To sum up, there is currently no relatively simple and effective method to improve the problem of low illumination near the two sides mentioned above, and thus further improve the uniformity of light emission of traditional edge-lit LCD backlight modules
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[0022] The embodiments of the present invention are described in detail below. This embodiment is implemented on the premise of the technical solution of the present invention, and detailed implementation methods and specific operating procedures are provided, but the protection scope of the present invention is not limited to the following implementation example.
[0023] Figure 1a is the bottom view of the embodiment, Figure 1b is the right side view of the embodiment.
[0024] Such as Figure 1a As shown, this embodiment includes: a light guide plate 1, a linear light source 2, and a reflector 3, wherein: the linear light source 2 is arranged on the outside of the light guide plate 1 and is in close contact with the light guide plate 1, and the reflector 3 is arranged on the light guide plate 1 and the linear light source 2 outside and closely attached to the light guide plate 1 and the line light source 2.
[0025] The light guide plate 1 is a rectangular transparent...
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Abstract
The invention relates to a side light type LCD backlight module comprising a non-uniform linear light source in the technical field of liquid crystal display, which comprises a light guide plate, a linear light source and a reflecting shield, wherein the linear light source is arranged at the outer side of the light guide plate and is in tight contact with the light guide plate; and the reflecting shield is arranged at the outer sides of the light guide plate and the linear light source and tightly attached to the light guide plate and the linear light source. The invention fully utilizes thecharacteristics of the linear light source of the side light type backlight module, improves the uniformity of the backlight module by controlling the luminance of LED particles in groups, is less adjusted in the prior side light type LED backlight process, solves the problem of lower luminance of the surroundings of both side edges of the light guide plate at low cost and improves the light emitting uniformity of the backlight module.
Description
technical field [0001] The invention relates to a device in the field of liquid crystal display technology, in particular to a side-light LCD backlight module including a non-uniform line light source. Background technique [0002] A liquid crystal display module is usually composed of a light source, a light guide plate, a diffusion film, a prism antireflection film, a front polarizer, an array substrate, a liquid crystal layer, a color filter, and a rear polarizer. Among them, the light source, light guide plate, diffusion film and prism anti-reflection film constitute the backlight module and provide uniform illumination for the liquid crystal panel; the front and rear polarizers and the liquid crystal layer form a light valve to control the luminous flux; , blue are filtered to form colored pixels. [0003] Currently, the requirements for the backlight module are high brightness, high efficiency and high uniformity. Among them, high brightness and high efficiency are i...
Claims
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IPC IPC(8): F21V23/04F21V3/00F21V8/00G02F1/13357
Inventor 崔晴宇姜凌峰董承远苏翼凯
Owner SHANGHAI JIAOTONG UNIV