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Light emitting device

A technology for light-emitting devices and light-emitting diodes, applied in semiconductor devices, electrical components, circuits, etc., can solve the problems of lowering the total output energy, changing the appearance and color of the light-emitting device, increasing production costs, etc., so as to improve lumens and reduce the loss of radiant flux. Effect

Inactive Publication Date: 2018-09-25
LITE ON ELECTRONICS (GUANGZHOU) LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if the existing blue light-emitting diode is replaced by a light source with low blue light content, the cost of the special light source is several times higher than that of the white light source, so replacing the light source in the light-emitting device is easy to increase the production cost; , it will cause the appearance color of the light-emitting device to change and the total output energy to decrease

Method used

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Examples

Experimental program
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Embodiment Construction

[0048] figure 1 A schematic diagram of a light emitting device as an embodiment of the present invention is shown. Please refer to figure 1 , in the light emitting device 100a of this embodiment, the light emitting device 100a includes a carrier 110a, at least one light emitting diode 120 ( figure 1 Only one is schematically shown in ), the first filter layer 130a and the first encapsulant 140a. The LED 120 is disposed on the carrier 110a and is electrically connected to the carrier 110a. The first filter layer 130a is disposed above the LED 120 and located on the light emitting path of the LED 120 . The first encapsulant 140 a is located between the first filter layer 130 a and the LED 120 , and the first encapsulant 140 a is doped with a fluorescent material 142 . The light emitting diode 120 is adapted to emit a specific color light L, and the first part L1 of the specific color light L is incident on the first encapsulant 140 a and is reflected back into the first enca...

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Abstract

The invention provides a light emitting device, and the light emitting device comprises a carrier, at least one light emitting diode, a first filter layer and a first packaging adhesive. The light emitting diode is disposed on the carrier and electrically connected with the carrier. The first filter layer is disposed above the light emitting diode and is located on a light emitting path of the light emitting diode. The first packaging adhesive is located between the first filter layer and the light emitting diode, and the first packaging adhesive is doped with a fluorescent material. The lightemitting diode is suitable to emit specific color light, and a first portion of the specific color light enters the first packaging adhesive and is reflected back to the first packaging adhesive by the first filter layer. A second portion of the specific color light enters the first packaging adhesive and excites the fluorescent material, so as to change into another type of specific color lightto penetrate the first filter layer.

Description

technical field [0001] The invention relates to a light emitting device, in particular to a light emitting device using a light emitting diode as a light source. Background technique [0002] Generally speaking, there are two ways to suppress the blue light output in the light-emitting device: one is to replace the existing blue light-emitting diode with a light source with low blue light content; The energy of blue light is reduced. However, if the existing blue light-emitting diode is replaced by a light source with low blue light content, the cost of the special light source is several times higher than that of the white light source, so replacing the light source in the light-emitting device is easy to increase the production cost; , it will cause the appearance color of the light emitting device to change and the total output energy to decrease. Contents of the invention [0003] The invention provides a light-emitting device, which has the function of inhibiting th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L33/48H01L33/58H01L33/60
CPCH01L33/483H01L33/58H01L33/60H01L33/44H01L33/50
Inventor 吴秉育彭耀祈
Owner LITE ON ELECTRONICS (GUANGZHOU) LTD