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Light and color regulable COBLED structure

A dimming and light-emitting chip technology, which is applied in the field of lighting, can solve the problems of poor light output efficiency of the dimming and color matching chip, no consideration of the effect of light mixing, and poor air tightness of the light output effect, so as to achieve stable light color and brightness. Adjust, improve LED life and stability, good heat dissipation effect

Inactive Publication Date: 2012-01-04
ZHEJIANG INTELED OPTOELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention mainly solves the technical problems of poor heat dissipation effect, light output effect and poor airtightness in the prior art of the dimmable and color-adjustable COB LED packaging structure, and provides an adjustable Light-colored COB LED structure
[0004] The present invention also solves the problem that the arrangement of chips of different colors of light in a dimmable and color-adjustable COB LED does not take into account the effect of light mixing, and the problem of poor light-emitting efficiency of the dimming and color-adjusting chips and chips provides a light-adjustable and color-adjusting Good effect and light output efficiency of the chip, dimmable and color-adjustable COB LED structure

Method used

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  • Light and color regulable COBLED structure
  • Light and color regulable COBLED structure
  • Light and color regulable COBLED structure

Examples

Experimental program
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Effect test

Embodiment 1

[0015] In this embodiment, a dimmable and color-tunable COB LED structure, such as figure 1 and figure 2 As shown, including the substrate 1, a layer of circuit layer 6 is compounded on the surface of the substrate, and 16 tapered grooves 2 are provided on the substrate. The side wall of the shaped groove forms a reflector structure, and four light-emitting chips 4 are arranged on the bottom of the tapered groove. The light-emitting chip is a blue light chip. There is fluorescent glue7. The tapered grooves are arranged in the shape of "mutually" on the substrate. There are also 10 light-emitting chips 5 on the substrate. The light-emitting chips 2 are directly connected to the circuit layer 6. The top is arranged in a "three" shape, and the light-emitting chips 2 and the tapered grooves 2 are arranged alternately. A wall glue 3 is also arranged on the substrate, the wall glue surrounds the tapered groove and the light-emitting chip 2, and transparent glue 8 is filled in th...

Embodiment 2

[0017] In this embodiment, a dimmable and color-tunable COB LED structure, such as figure 1 and figure 2 As shown, including the substrate 1, a layer of circuit layer 6 is compounded on the surface of the substrate, and 16 tapered grooves 2 are provided on the substrate. The side wall of the shaped groove forms a reflector structure, and four light-emitting chips 4 are arranged on the bottom of the tapered groove. The light-emitting chip is a blue light chip. There is fluorescent glue7. The tapered grooves are arranged in the shape of "mutually" on the substrate. There are also 10 light-emitting chips 5 on the substrate. The light-emitting chips 2 are directly connected to the circuit layer 6. The top is arranged in a "three" shape, and the light-emitting chips 2 and the tapered grooves 2 are arranged alternately. A wall glue 3 is also arranged on the substrate, the wall glue surrounds the tapered groove and the light-emitting chip 2, and transparent glue 8 is filled in th...

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Abstract

The invention relates to a light and color regulable COBLED structure, which mainly solves the problems of poor heat radiation effect, poor light output effect, poor airtight performance effect, poor light and color regulating effect and poor light output efficiency of a chip in a traditional light and color regulable COBLED encapsulation structure in the prior art. An LED (Light-Emitting Diode) comprises a base board and a line layer which is arranged on the base board, wherein a plurality of conical grooves are arranged on the base board; a plurality of small power illuminating chips are arranged on the bottom surfaces of the conical grooves; fluorescent glue is filled in the conical grooves; a circle of enclosure glue is also arranged on the base board; and transparent glue is filled in the enclosure glue. The light and color regulable COBLED structure has the advantages that the illuminating chips are arranged on the bottoms of the conical grooves and are in direct contact with the base board; a heat radiating effect is good; a thermoelectrical separating structure is formed; the service life and the stability of the LED are enhanced; the enclosure glue ensures the airtight performance of encapsulation and physical strength; blue chips and white and red / yellow chips generated by the fluorescent glue are staggered; and light, colors and brightness in a quite wide range are regulable.

Description

technical field [0001] The invention relates to the field of lighting technology, in particular to a COB LED structure with adjustable light and color adjustment, which has good heat dissipation effect, good sealing performance and wide adjustable range. Background technique [0002] The existing dimmable and color-tunable LED packaging structure is: one is the integration of multiple LED lamp beads emitting different colors of light. These LED lamp beads are generally high-power LEDs, and the entire packaging cost is high and the packaging density is low. The effect of light mixing and color mixing is poor, and the light color adjustability is poor. There are also COB packaging solutions, but it is only a simple two-dimensional plane mode. The chip is not in direct contact with the substrate, but first passes through a circuit layer with extremely low thermal conductivity. The overall heat dissipation effect is very poor, and all of them are located on the surface of the su...

Claims

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Application Information

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IPC IPC(8): H01L33/64H01L33/62H01L33/54H01L25/075
Inventor 陈华
Owner ZHEJIANG INTELED OPTOELECTRONICS TECH
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