Light guide plate and backlight module with same
A technology of backlight module and light guide plate, which is applied in the direction of light guide, optics, optical components, etc., can solve the problems of inability to condense light on four sides of the light guide plate and maximize the utilization rate of light of the light guide plate, so as to improve the utilization rate of light. Effect
Inactive Publication Date: 2015-02-18
TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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Problems solved by technology
However, the prism structure designed on the light-emitting surface of some current light guide plates is a one-dimensional structure, which can only achieve light concentration on two sides of the light guide plate, but cannot achieve light concentration on four sides of the light guide plate, thus failing to maximize the efficiency of the light guide plate. light utilization
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[0022] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the specific embodiments set forth herein. Rather, the embodiments are provided to explain the principles of the invention and its practical application, thereby enabling others skilled in the art to understand the invention for various embodiments and with various modifications as are suited to particular intended uses.
[0023] figure 1 is a perspective view of a light guide plate according to a first embodiment of the present invention.
[0024] refer to figure 1 According to the first embodiment of the present invention, the light guide plate 10 includes a light incident surface 11, a light exit surface 12 and a bottom surface 13 opposite to the light exit surface 12, wherein the light exit surface 12 is connected to the light incident su...
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The invention discloses a light guide plate. The light guide plate comprises an incident surface (11), an emergent surface (12) and a bottom surface (13) opposite to the emergent surface (12), wherein the emergent surface (12) and the bottom surface (13) are connected with the incident surface (11). The emergent surface (12) comprises a plurality of V-shaped trenches (14) formed along the first direction and a plurality of V-shaped trenches (14) formed along the second direction, and an included angle which is larger than zero degree and smaller than and equal to 90 degrees is formed between the first direction and the second direction. The invention further discloses a backlight module with the light guide plate. The light guide plate and the backlight module with the same have the advantages that after light rays are incident from the incident surface to a plurality of net points on the bottom surface, the net points change the heading direction of the incident light rays, so that the light rays go ahead towards the emergent surface direction; the emergent surface is provided with the V-shaped trenches which are formed in two intersection directions respectively, and the light rays can enable the emergent surface to achieve four-side light condensation after being subjected to refraction by the emergent surface and converged, so that light use efficiency of incident light can be improved maximally.
Description
technical field [0001] The invention belongs to the technical field of liquid crystal display, and in particular relates to a light guide plate and a backlight module with the light guide plate. Background technique [0002] Liquid crystal display devices have the advantages of thinness, low power consumption, and low radiation, and are widely used in electronic display devices such as notebook computers, mobile phones, and electronic dictionaries. In recent years, with the continuous development of liquid crystal display technology, its use environment has also changed. The frequency of outdoor use is increasing, and people's demand for vision is also increasing. It is hoped that a liquid crystal display device with higher brightness can be developed. [0003] Therefore, it is necessary to improve the light utilization rate of the backlight module, and among all the components forming the backlight module, the light guide plate (LGP) plays a very important role in improving...
Claims
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IPC IPC(8): G02B6/00G02F1/13357
CPCG02B6/0038G02B6/0036
Inventor 张彦学
Owner TCL CHINA STAR OPTOELECTRONICS TECH CO LTD