Backlight of light-emitting diodes
A technology of light-emitting diodes and backlight sources, applied in the field of backlight sources, can solve problems such as the thickening of the backlight source structure, and achieve the effects of improving brightness, increasing heat dissipation area, and improving heat dissipation performance.
Active Publication Date: 2010-10-06
K TRONICS (SUZHOU) TECH CO LTD +1
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Problems solved by technology
[0003] The purpose of the present invention is to provide a light-emitting diode backlight, which can effectively solve the shortcomings of the existing light-emitting diode backlight by increasing the optical path to achieve uniform light mixing and resulting in a thicker backlight structure
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Embodiment Construction
[0024] The first scheme of the light-emitting diode backlight source of the present invention
[0025] figure 1 It is a structural schematic diagram of the first solution of the light-emitting diode backlight source of the present invention, such as figure 1 As shown, the light-emitting diode backlight of this solution includes a first circuit board 21, a second circuit board 22, several first light-emitting diodes 31 and several second light-emitting diodes 32, and the light guide plate 1 is located on one side of the first circuit board 21 Several first light-emitting diodes 31 are uniformly fixed on the first circuit board 21, a light-transmitting hole 4 is opened between adjacent two first light-emitting diodes 31, and the second circuit board 22 is arranged on the first circuit board 21 in parallel. On the other side, several second light-emitting diodes 32 are evenly fixed on the second circuit board 22, and the position of each second light-emitting diode 32 correspo...
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The invention relates to a backlight of light-emitting diodes, comprising circuit boards and the light-emitting diodes which are fixedly connected on the circuit boards, the circuit boards comprise a first circuit board and a second circuit board which are arranged in parallel, first light-emitting diodes arranged on the first circuit board and second light-emitting diodes arranged on the second circuit board are staggeredly arranged, and light holes which lead light emitted by the second light-emitting diodes on the second circuit board to penetrate the first circuit board and be evenly mixedwith the light emitted by the first light-emitting diodes on the first circuit board are arranged among the adjacent first light-emitting diodes on the first circuit board. The backlight of the light-emitting diodes can realize even mixing the light within a small distance, thereby meeting the pursuit of a liquid crystal display on light and thin properties; simultaneously, the backlight is provided with two layers of the circuit boards, and the light holes are arranged on the first circuit board, thereby being capable of increasing the heat radiation area of the circuit boards and improvingthe heat radiation performance of the circuit boards.
Description
technical field [0001] The invention relates to a backlight source of a liquid crystal display device, in particular to a light emitting diode backlight source. Background technique [0002] The traditional liquid crystal display backlight is a cold cathode light emitting tube. In recent years, because light emitting diodes have the advantages of high color gamut, low consumption and no pollution, more and more light emitting diodes are used as backlight in the field of liquid crystal display. Light-emitting diodes belong to small chips and are similar to point light sources. The current method of use is to weld light-emitting diodes on a single-layer flat circuit board into a line array or an area array. light source used. Due to the characteristics of the light emitting diode light source, the mixed light in the area near the light source will be uneven, resulting in bright and dark areas. The current solution is to achieve uniform light mixing by increasing the optical ...
Claims
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IPC IPC(8): H01L33/00G02F1/13357
Inventor 刘海军尹大根金哲润宋冠男
Owner K TRONICS (SUZHOU) TECH CO LTD