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Light-emitting structure, light-emitting diode and preparation method thereof

A technology of light-emitting diodes and light-emitting structures, applied in semiconductor devices, electrical components, circuits, etc., can solve problems such as low light-emitting efficiency

Active Publication Date: 2020-05-15
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the embodiments of the present invention is to provide a light-emitting structure, a light-emitting diode and a preparation method thereof, so as to overcome the defect of low light extraction efficiency in the prior art

Method used

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  • Light-emitting structure, light-emitting diode and preparation method thereof
  • Light-emitting structure, light-emitting diode and preparation method thereof
  • Light-emitting structure, light-emitting diode and preparation method thereof

Examples

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no. 1 example

[0050] figure 1 It is a structural schematic diagram of the first embodiment of the light emitting diode of the present invention. Such as figure 1 As shown, the main structure of the light-emitting diode in this embodiment includes a light-emitting structure 100, a reflective cup 200, and a transparent emitting layer 300, wherein,

[0051] Light emitting structure 100 includes:

[0052] The substrate 10 has a first surface and a second surface facing away from each other;

[0053] A first light-emitting substructure 20, disposed on the first surface of the substrate 10, for emitting light of a first wavelength;

[0054] The second light-emitting substructure 30 is disposed on the second surface of the substrate 10 and used for emitting light of the second wavelength.

[0055] The reflective cup 200 includes a cup bottom 201 and an annular cup wall 202. The annular cup wall 202 is arranged on the cup bottom 201 to form a storage cavity for accommodating the light emitting ...

no. 2 example

[0078] Figure 10A and Figure 10B It is a structural schematic diagram of the second embodiment of the light emitting diode of the present invention. This embodiment is an extension of the aforementioned first embodiment. The main structure of the light-emitting diode is the same as that of the aforementioned first embodiment. Optimized. Specifically, such as Figure 10A As shown, on a plane perpendicular to the bottom of the cup, the cross-sectional shape of the reflective cup 200 is an inverted trapezoid with two sides in the shape of a broken line, that is, the generatrix of the reflective cup 200 is in the shape of a broken line. Such as Figure 10B As shown, on a plane perpendicular to the bottom of the cup, the cross-sectional shape of the reflective cup is an inverted trapezoid with both sides curved, that is, the generatrix of the reflective cup is curved. On a plane parallel to the bottom of the cup, the cross-sectional shape of the reflective cup is circular, e...

no. 3 example

[0082] Figure 11 It is a structural schematic diagram of the third embodiment of the light emitting diode of the present invention. This embodiment is an extension of the foregoing first embodiment. The main structure of the light emitting diode is the same as that of the foregoing first embodiment. The difference from the foregoing first embodiment is that this embodiment optimizes the light emitting structure 100 . In the first embodiment, on a plane perpendicular to the bottom of the cup, the cross-sectional shape of the substrate 10 of the light emitting structure 100 is rectangular, that is, the first surface is parallel to the second surface. In this embodiment, on a plane perpendicular to the bottom of the cup, the cross-sectional shape of the substrate 10 of the light-emitting structure 100 is an inverted trapezoid, and the bottom of the inverted trapezoid is set on the bottom of the cup. The first light-emitting substructure 20 and the second light-emitting substruct...

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Abstract

Embodiments of the present invention provide a light emitting structure, a light emitting diode and a preparation method thereof. The light-emitting structure includes a first light-emitting substructure arranged on the first surface of the substrate for emitting light of a first wavelength and a second light-emitting substructure arranged on the second surface of the substrate for emitting light of a second wavelength. The two surfaces are the surfaces of the substrate facing away from each other. The light-emitting diode includes the above-mentioned light-emitting structure, and also includes a reflective cup and a transparent emitting layer, the reflective cup is used to accommodate the light-emitting structure, and the transparent emitting layer fills the reflective cup and forms a light-emitting surface for emitting mixed light. In the present invention, two light-emitting substructures that emit light of different wavelengths are respectively arranged on the surfaces of the substrates away from each other, so that the light of two different wavelengths is emitted from two different directions, and the mutual interference between the two wavelengths of light is avoided. The quantum efficiency and color reproduction are improved, and it has the advantages of high light extraction efficiency and good color rendering.

Description

technical field [0001] The invention relates to the technical field of semiconductors, in particular to a light emitting structure, a light emitting diode and a preparation method thereof. Background technique [0002] Due to the advantages of semiconductor light-emitting diode (Light Emitting Diode, LED) with simple structure, small size, energy saving, high efficiency, long life, and clear light, it has gradually replaced traditional lighting fixtures such as incandescent lamps and fluorescent lamps in recent years, and is becoming the new generation of lighting market. Mainstream products are also widely used in optoelectronic systems. [0003] At present, there are many ways to realize white LED in the prior art. The first way is to use blue LEDs to excite yellow phosphors to form white light, or to use ultraviolet LEDs to excite red, green and blue phosphors to form white light. The second way is to use multi-chip LED mode, usually red, green and blue LEDs are used to...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L33/00H01L33/02H01L33/10H01L33/50
CPCH01L33/60H01L25/0756H01L27/15H01L33/54H01L33/005H01L33/04H01L33/10H01L33/12
Inventor 吴臣臣刘晓那陈玉琼王孟杰袁帅郑子易张瑞孙玉家
Owner BOE TECH GRP CO LTD