Tricolor LED mixed color apparatus used for direct lighting LED backlighting source

An LED backlight, three primary color technology, applied in optics, nonlinear optics, instruments, etc., can solve the problems of package product size limitation, lamp position arrangement and quantity limitation, etc., to improve the color mixing effect and increase the optical path. Effect

Inactive Publication Date: 2007-05-16
FOSHAN NATIONSTAR OPTOELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this device is limited to the shape of the curved surface, which limits the size of the entire packaged product. At the same time, the arrangement and quantity of the lamps are also limited by the curved surface.

Method used

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  • Tricolor LED mixed color apparatus used for direct lighting LED backlighting source
  • Tricolor LED mixed color apparatus used for direct lighting LED backlighting source
  • Tricolor LED mixed color apparatus used for direct lighting LED backlighting source

Examples

Experimental program
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Effect test

Embodiment 1

[0019] As shown in Fig. 1 and Fig. 2, the three-primary-color LED color-mixing device used for the direct type LED backlight source of the present invention comprises a substrate 23 and a three-primary-color LED 24, and the three-primary-color LEDs are separated from each other and installed on the substrate, and the surface of the substrate Set the outer cover 1, which is the spherical crown molding part of the color mixing device. On its surface, a layer of reflective material 21 that does not absorb light is plated. The reflective material 21 is plated according to the distribution of dots 22, and the dots are based on LED The arrangement and the distribution of light intensity are set. The LEDs distributed on the surface of the substrate are concentrated directly under the package lens. The arrangement order of the three primary color LEDs is not particularly limited. LEDR, LEDG, and LEDB are arranged linearly or squarely. cloth, its luminous center is directly opposite to ...

Embodiment 2

[0022] As shown in FIG. 4 , for the shape of the color mixing device, besides the spherical cap structure, it can also be made into a cube structure. For the color mixing device 50 of the square structure, a layer of non-absorbing reflective material 51 is plated on its upper surface, and the reflective material 51 is plated with dots 52. The light emitting diode LED is placed directly below the color mixing device and placed on the substrate. 53 , the substrate 53 is plated with a reflective substance that does not absorb light.

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PUM

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Abstract

This invention discloses one three base color LED mixture device for downward LED aphototropism source, which comprises underlay, three color LED separately fixed on underlay, wherein, the invention is characterized by the following: the under surface is set with cover coated with reflection materials as network point distribution.

Description

technical field [0001] The invention relates to the field of a three-primary-color LED color mixing device used in a direct LED backlight source of an LCD, and more specifically relates to a three-primary-color LED color mixing device used as a light source of a backlight assembly. Background technique [0002] In general, LCD (Liquid Crystal Display) is an active optical element that cannot emit light by itself, so images are displayed using a backlight assembly installed on the back of the LCD panel. In order to meet the trend of miniaturization and light weight to ensure product competitiveness, recently Backlight assemblies having various structures have been developed. Cold Cathode Fluorescent Lamps (CCFLs) are a traditional light source that is more commonly used in the aforementioned backlight assemblies. Backlight devices using cold-cathode fluorescent lamps are broadly classified into edge-lit backlight devices in which cold-cathode fluorescent lamps are arranged o...

Claims

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Application Information

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IPC IPC(8): G02F1/1335H01L33/00H01L33/48
Inventor 黄杨程苏志林李政韬夏勋力
Owner FOSHAN NATIONSTAR OPTOELECTRONICS CO LTD
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