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Backlight module

A backlight module and light source technology, which is applied in optics, light guides, light sources, etc., can solve the problems of sacrificing the luminous efficiency of LED backlight modules and imperfect light mixing effects, achieve good light mixing effects, and enhance industrial competitiveness. Improve the effect of poor luminous efficiency

Inactive Publication Date: 2010-10-27
HANNSTAR DISPLAY CORPORATION
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  • Abstract
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AI Technical Summary

Problems solved by technology

However, if figure 1 The light mixing mechanism provided by the known LED backlight module still has room for improvement
In addition, when providing a better light mixing mechanism for the LED backlight module, it is still necessary to consider the characteristics of the LED as a directional element, so as to avoid sacrificing the overall luminous efficiency of the LED backlight module while achieving a good light mixing effect
[0008] In the known technology, there is still a lack of an LED backlight module that can take into account both luminous efficiency and light mixing effect, so as to improve the imperfect light mixing effect in the known technology.

Method used

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Embodiment Construction

[0022] A detailed description of some embodiments of the present invention follows, however, in addition to this detailed description, the present invention is broadly applicable to other embodiments. That is, the scope of the present invention should not be limited by the embodiments presented, but should be governed by the claims presented in the present invention.

[0023] Furthermore, in order to provide a clearer description and easier understanding of the present invention, the various parts in the drawings are not drawn according to their relative dimensions, some dimensions have been exaggerated compared with other relevant dimensions; irrelevant details are not fully drawn. for simplicity of illustration.

[0024] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below, and are described in detail as follows in conjunction with the accompanying drawings: ...

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Abstract

The invention relates to a backlight module comprising a light guide plate, a light mixing plate and a plurality of light sources, wherein the light guide plate is provided with a first side surface. The light mixing plate is provided with a light incidence surface with irregular surface and a light emergent surface with a fog surface and is arranged on the first side surface of the light guide plate. The light sources arranged corresponding to the light incidence surface; light emitted from the light sources enters the light mixing plate through the light incidence surface; the light exits from the light emergent surface and enters the light guide plate through the first side surface.

Description

technical field [0001] The present invention relates to a backlight module, in particular to a backlight module, which is suitable for use in liquid crystal displays. A light mixing plate is used to mix light incident from a light source to form a uniform light source, and the light mixing plate has an irregular surface for incident light. face and a matte light-emitting surface. Background technique [0002] Products using liquid crystal display panels (LCD) are very common, and their applications can be seen in notebook computers, monitors, mobile phones, LCD TVs, digital cameras, and personal digital assistants, etc. Because LCD is not a self-luminous element, its application must use a backlight module to make it emit light and produce a display effect. Therefore, the backlight module is actually an inevitable equipment of LCD products. In the field of application, the use of backlight modules has also become an appropriate choice. In a conventional liquid crystal disp...

Claims

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Application Information

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IPC IPC(8): F21S8/00F21V8/00F21V5/00G02F1/13357F21Y101/02
Inventor 张之礼
Owner HANNSTAR DISPLAY CORPORATION
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