Light guide plate and manufacturing method thereof
A manufacturing method and technology of light guide plate, applied in the directions of light guide, optics, optical components, etc., can solve the problem of uneven brightness distribution on the light-emitting surface, and achieve the effect of eliminating uneven brightness and uniform brightness distribution
Inactive Publication Date: 2014-07-02
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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Problems solved by technology
[0002] The light-emitting surface of the current light guide plate is generally smooth, but the smooth surface will cause all incident light to pass through the light guide plate in the same path, causing the incident light to be concentrated on some parts of the light-emitting surface, while the other part of the light-emitting surface Basically no light will arrive, making the brightness distribution on the light emitting surface uneven
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[0018] see figure 1 , a light guide plate 100 provided in an embodiment of the present invention, which includes a body 10 and a plurality of bumps 20 randomly distributed in size and shape. The bumps 20 are made of the same material as the body 10 .
[0019] The body 10 is a rectangular parallelepiped and is made of transparent material (such as acrylic resin, polycarbonate, polyethylene resin, etc.). The body 10 includes a light emitting surface 11 , a bottom surface 13 , a light incident surface 15 and a side surface 17 . The bottom surface 13 is opposite to the light-emitting surface 11 , and the bottom surface 13 and the light-emitting surface 11 are parallel to each other. The light incident surface 15 connects the light exit surface 11 and the bottom surface 13 , and the light incident surface 15 is perpendicular to the light exit surface 11 . The side surface 17 connects the light-emitting surface 11 and the bottom surface 13 , and is disposed facing the light-incid...
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The invention relates to a light guide plate. The light guide plate comprises a body and a plurality of salient points distributed in random sizes and shapes. The plurality of salient points are made of the same material as a body. The body comprises a light emergence surface, a bottom surface and a light incidence surface. The bottom surface is arranged opposite to the light emergence surface. The light incidence surface is connected with the light emergence surface and the bottom surface. The plurality of salient points are irregularly arranged on the light emergence surface, and are used for multiple reflection and refraction of incident light, so that transmission paths of the incident light are different, and luminance distribution on the light emergence surface is guaranteed to be uniform. The invention also relates to a manufacturing method of the light guide plate.
Description
technical field [0001] The invention relates to a light guide plate and a manufacturing method thereof. Background technique [0002] The light-emitting surface of the current light guide plate is generally relatively smooth, but the smooth surface will cause all incident light to be transmitted in the same path on the light guide plate, resulting in the incident light being concentrated on some parts of the light-emitting surface, while the other part of the light-emitting surface There is basically no light arriving, so that the brightness distribution on the light-emitting surface is uneven. Contents of the invention [0003] In view of this, it is necessary to provide a light guide plate with uniform distribution of light output brightness and a manufacturing method thereof. [0004] A light guide plate includes a body and a plurality of protruding points randomly distributed in size and shape. The protrusions are made of the same material as the body. The body incl...
Claims
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IPC IPC(8): G02B6/00
Inventor 王何立颖
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD