Device and method for homogenizing light of polygonal light guiding structure formed by lapping
A technology with light guide structure and uniform light emission, which is applied to lighting devices, light guides of lighting systems, components of lighting devices, etc., can solve the problems of unevenness and uneven lighting of the frame, and achieve the effect of uniform brightness
Active Publication Date: 2013-03-27
SHANGHAI XIANGLONG ELECTRONICS TECH
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Problems solved by technology
[0004] However, since each light guide plate of the backlight module has its own independent light source to inject light into it for transmission, the overlapping position A of the two light guide plates 11 will have a higher brightness than other non-overlapping positions due to the addition of light amounts. In turn, the luminescence of the entire frame is uneven; especially if there is a reflective sheet on the other side of the light guide plate relative to the light-emitting surface, the increased brightness is more obvious; in addition, the more overlapping positions, the more prominent the overall uneven phenomenon
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[0018] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:
[0019] The purpose of the present invention is to solve the problem of the frame-shaped light guide structure composed of overlapping groups of backlight modules in the prior art. The structure exhibits a problem of non-uniform light emission.
[0020] The feature of the present invention is to separate the overlapping positions of the two backlight modules forming the frame-shaped light guide structure with a light-proof component, so that the light transmitted by the two backlight modules does not interfere with each other at the overlapping positions; that is, The luminous effect produced by each group of backlight modules is independently provided by the light source of the backlight module, and the luminosity of the light sources of each group of backlight modules is the same, so that the entire frame-shaped light guide structure presents u...
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The invention relates to a device and method for homogenizing the light of a polygonal light guiding structure formed by lapping. The device comprises the polygonal light guiding structure which is composed of a plurality of backlight modules, wherein two adjacent backlight modules are connected by lapping; each backlight module at least comprises a light guiding plate; at least one light source is arranged on at least one side of the light guiding plate, so that the light source can be projected into the light guiding plate for conduction; at least one light-tight component is arranged between lapped positions of the two backlight modules to isolate the two backlight modules from each other, so that light rays conducted by two light guiding plates do not interfere with each other; the polygonal light guiding structure can be arranged in an inner space of a polygonal frame body; and a polygonal light-transmittable shade is arranged on an opening of the inner space by covering. The device and the method, which are provided by the invention, have the advantage of enabling the whole frame-shaped light guiding structure to reveal uniform luminance.
Description
technical field [0001] The invention relates to a backlight module, in particular to a light-emitting device with a polygonal light-guiding structure formed by overlapping and a method thereof. Background technique [0002] In the modern society that pays attention to the quality of life, in addition to the development of functions, 3C products such as electronics, electrical appliances and computers also pay great attention to product shape design and situation creation. For general computer monitors, computer manufacturers may set light emitting devices around the outer frame of the display to create a cool or romantic situation; or apply the light emitting devices to vehicle license plate frames, TV casings, audio-visual appliances Displays, ... and other products. [0003] figure 1 and figure 2 What is shown is the structure of a light emitting device applied to a rectangular frame in the prior art, which is composed of four EL field effect lamps or four groups of ba...
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IPC IPC(8): F21V13/00F21V11/00F21V8/00G02F1/13357
Inventor 叶建宇苏东权
Owner SHANGHAI XIANGLONG ELECTRONICS TECH