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Silk printing-free light guide plate

A light guide plate and wire-free technology, which is applied in the direction of light guides, optics, optical components, etc., can solve the problem of uneven light output from the light guide plate, achieve uniform light output, fine dispersion, and improve the effect of uneven brightness and darkness

Pending Publication Date: 2017-11-21
广东东华光电科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem of uneven light output from the light guide plate in the prior art, it is necessary to provide a screen-printing-free light guide plate with uniform light output

Method used

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  • Silk printing-free light guide plate
  • Silk printing-free light guide plate
  • Silk printing-free light guide plate

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Experimental program
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Embodiment Construction

[0017] The present invention will be further described below in conjunction with accompanying drawing:

[0018] Such as Figure 1 to Figure 4 A silk-screen-free light guide plate is shown, the light guide plate has a light incident surface 1, a light exit surface 2 and a dot structure, the light incident surface 1 is arranged on the left and right sides of the light guide plate, and the light exit surface 2 is arranged on the The bottom surface of the light board, the dot structure is arranged on the light exit surface 2, the light exit surface 2 includes the upper side 4, the lower side 5, the left side 6, the right side 7, the upper side 4 and the lower side 5 The first central line 8, the second central line 9 of the left side 6 and the right side 7, the dot structure is made up of some hemispherical dots 3, and the dots 3 are from the upper side 4 to the first central line 8 gradually increases, the density of the dots 3 from the lower side 5 to the first centerline 8 gra...

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Abstract

The invention provides a silk printing-free light guide plate, which comprises a light incoming surface, a light outgoing surface and a dot structure, wherein the dot structure is arranged on the light outgoing surface; the light outgoing surface comprises an upper side edge, a lower side edge, a left side edge, a right side edge, a first center line of the upper side edge and the lower side edge, and a second center line of the left side edge and the right side edge; the dot structure is formed by a plurality of semicircle ball-shaped dots; densities of the dots are increased gradually from the upper side edge to the first center line; densities of the dots are increased gradually from the lower side edge to the first center line; densities of the dots are increased gradually from the left side edge to the second center line; and densities of the dots are increased gradually from the right side edge to the second center line. The thickness h of the light guide plate is 1.5 to 5 mm; the protruding heights n of the dots on the light surfaces are between 0.05 to 0.5 mm; and the radiuses r of dots are between 0.1 to 0.5 mm. An uneven brightness degree phenomenon caused by a hot dot and a dead lamp can be improved, the light guide plate does not generate beam, halo and dark band phenomena easily on the light outgoing surface, and the light outgoing is more uniform.

Description

technical field [0001] The invention relates to the technical field of decorative light guide plates, in particular to a screen-printing-free light guide plate. Background technique [0002] LED panel light is a high-end indoor lighting fixture. Its outer frame is made of aluminum alloy through anodic oxidation. The light source is LED. The feeling of beauty. The LED panel light has a unique design. The light passes through the light guide plate with high light transmittance to form a uniform plane luminous effect. The uniformity of illumination is good, the light is soft, comfortable and bright, which can effectively relieve eye fatigue. LED panel lights can also prevent radiation and will not irritate the skin of pregnant women, the elderly, and children. [0003] The light guide plate of the side-entry LED panel light changes the propagation direction of the light injected by the LED light source from the side, and transforms it into a uniform surface light source emitt...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B6/00
CPCG02B6/0043
Inventor 孔令豹
Owner 广东东华光电科技有限公司
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