Plate for guiding light and backlight module

A backlight module and light guide plate technology, which is applied in optics, optical components, diffraction gratings, etc., can solve the problems of inapplicability to a wide spectral range and low light energy utilization rate of the light guide plate, so as to improve the light energy utilization rate and eliminate Dark band phenomenon, the effect of increasing the diffusion angle
CN1797107AInactive Publication Date: 2006-07-05HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD
Publication Date
2006-07-05
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a light guide plate and a backlight module. And the light guide plate comprises a light incoming surface, a light outgoing surface intersecting the light incoming surface and a bottom surface opposite to the light outgoing surface, where the light incoming surface is of a columnar prism structure and has a sub-wavelength reflective grating which is used to improve the light incoming efficiency and can eliminate the dark band phenomenon caused by using light sources. And the light guide plate can provide high efficiency and high uniformity irradiation for a LCD module.
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Description

【Technical field】

[0001] The present invention relates to a light guide plate and a backlight module, in particular to a light guide plate and a backlight module capable of improving light energy utilization. 【Background technique】

[0002] The liquid crystal display module is a kind of non-self-luminous display device, and its display is mainly realized by controlling the passage or non-passage of the light beam emitted by the external light source. Therefore, a corresponding backlight or front light module is usually required. The backlight or front light module The group can guide the light beam emitted by the external light source to the display panel to realize the display function.

[0003] The light guide plate is an important component in the backlight module, such as figure 1 As shown, the light guide plate 105 is combined with the light source 101, the reflection sheet 103, the diffusion sheet 107 and the prism sheet 109 to form a backlight module, which provides ...

Claims

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