Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Light emitting element

A technology of light-emitting components and light sources, applied in electrical components, semiconductor devices, electric solid-state devices, etc., can solve the problems of low efficiency and the luminous efficiency of white LEDs cannot exceed 150lm/W.

Inactive Publication Date: 2018-07-03
FENG CHIA UNIVERSITY
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

According to the current technology, the efficiency of phosphor powder to convert light energy is still lower than 60%, and it is impossible to effectively avoid the problem that the light emitted by the phosphor powder after being excited is absorbed by the overall light-emitting device again to reduce the light extraction efficiency, resulting in white LEDs emitting light. Efficiency cannot exceed 150lm / W

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Light emitting element
  • Light emitting element
  • Light emitting element

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] Such as figure 1 As shown, the present invention provides a light-emitting element, including a light source body 105, a lead frame 101, at least one wire 103, an LED chip 102, a Zener diode 107, a photonic crystal film 106 and a light-transmitting layer 104, Its relative position is that the lead frame 101 is placed on the bottom of the light source body 105, the LED die 102 is placed above the lead frame 101, and the photonic crystal film 106 is coated on at least a part of the surface of the LED die 102 and the light source. At least a part of the inner surface of the body 105 , the lead frame 101 including the at least one wire 103 are electrically connected to the LED die 102 and the Zener diode 107 .

[0027] The material for making the lead frame 101 needs to consider its electrical conductivity, thermal conductivity, mechanical strength, weldability and corrosion resistance. Commonly used materials are copper alloy, 42 alloy (nickel: 42%, iron: 58%), Kovar allo...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a light-emitting element, comprising: a light source body, a lead frame, an LED crystal grain, a Zener diode, a light-transmitting layer, and a photonic crystal film. The lead frame is placed at the bottom of the light source body, the LED die is placed above the lead frame, the light-transmitting layer is placed above the light source body, and at least one wire is electrically connected to the LED die and the Zener diode , The photonic crystal film is placed on the surface of the LED die and the inner surface of the light source body, and the characteristics of the photonic crystal film are used to increase the luminous efficiency.

Description

technical field [0001] The present invention relates to a structure of a compound white light emitting element, in particular to a light emitting element coated with a photonic crystal thin film inside a light source body. Background technique [0002] The development of the global LED industry is based on white LEDs. The life of white LEDs is more than 10 times longer than that of traditional lamps, and the brightness is also improved. White LEDs can also solve the environmental problems of mercury contained in waste lamps. Therefore, , White LED is considered to be an important lighting device that will replace all fluorescent lamps and incandescent bulbs in the future. At present, the luminous efficiency of white LEDs is more than double that of traditional incandescent bulbs. Most of them are composed of blue light emitted by blue LED grains and yellow phosphor (yttrium aluminum garnet, YAG). After the layer emits blue light, the yellow phosphor can be excited to emit w...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H01L33/48H01L33/58
CPCH01L33/48H01L33/483H01L33/504H01L33/58H01L33/60H01L2224/8592H01L2224/45139H01L2224/45144H01L2224/45147H01L2224/48091H01L2224/48247H01L2224/49107H01L2924/00014H01L2924/00
Inventor 赖俊峰
Owner FENG CHIA UNIVERSITY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com