360-degree complete cycle type LED lamp filament based on purple light chips

A LED filament, all-round technology, applied in the direction of electrical components, circuits, semiconductor devices, etc., can solve the problems of affecting the service life of the light source, low color reproduction of the filament, blue light leakage from the filament, etc., to improve light output efficiency and heat dissipation, Improve interface compatibility, high light output effect

Inactive Publication Date: 2015-01-21
CHANGZHOU JINGXI LIGHTING
View PDF9 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] (1) As in patents CN103035820A and CN103035823A, the LED filament still adopts blue light to excite YAG yellow phosphor to produce white light, and the prepared filament still has the problem of low color reproduction
[0006] (2) For example, in the patent CN103700651A, during the packaging process, the traditional method of directly coating the phosphor powder glue on the surface of the chip is adopted. When the prepared filament is lit, the phosphor powder is easily affected by the heat of the chip, resulting in attenuation of the phosphor powder. Affect the service life of the light source
[0007] (3) As in the patent CN203589021U, the fluorescent powder glue is only coated on both sides of the substrate, and the filament is easy to leak blue light from the side of the substrate when it is lit, resulting in uneven color

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
  • 360-degree complete cycle type LED lamp filament based on purple light chips
  • 360-degree complete cycle type LED lamp filament based on purple light chips

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] 1. Select the sapphire material as the substrate (1), arrange chips (2) with a peak wavelength of 360nm on the surface of the substrate (1) in an array; select silicone resin (6), multi-color phosphor powder (7), coupling Prepare the phosphor glue (4) by injection molding process, put the phosphor glue (5) and the substrate (1) into the mold, wherein the substrate (1) is relatively located in the center of the phosphor glue (5) Fixed position; select TiO 2 Inorganic nanoparticles (5) are mixed with transparent silica gel (3), and the mixture is evenly injected into the middle of the substrate (1) and phosphor glue (5); a 360° full-circle light-emitting LED filament based on a purple chip can be obtained .

Embodiment 2

[0028] 1. Select a transparent ceramic material as the substrate (1), and arrange chips (2) with a peak wavelength of 370nm on the front and back sides of the substrate (1) in an array; Powder (7) and coupling agent (8) are mixed to prepare fluorescent powder glue (4) through injection molding process, and phosphor powder glue (5) and substrate (1) are put into the mold, wherein substrate (1) is relatively positioned on the phosphor The center position of powder glue (5) is fixed; choose ZrO 2 Inorganic nanoparticles (5) are mixed with transparent silica gel (3), and the mixture is evenly injected into the middle of the substrate (1) and phosphor glue (5); a 360° full-circle light-emitting LED filament based on a purple chip can be obtained .

Embodiment 3

[0030] 1. Select the sapphire material as the substrate (1), arrange chips (2) with a peak wavelength of 380nm on the surface of the substrate (1) in an array; select silicone resin (6), multi-color phosphor powder of the phosphate system (7 ), the coupling agent (8) is mixed to prepare the fluorescent powder glue (4) through the injection molding process, and the phosphor powder glue (5) and the substrate (1) are put into the mold, wherein the substrate (1) is relatively located in the phosphor powder glue ( 5) The center position is fixed; choose TiO 2 Inorganic nanoparticles (5) are mixed with transparent silica gel (3), and the mixture is evenly injected into the middle of the substrate (1) and phosphor glue (5); a 360° full-circle light-emitting LED filament based on a purple chip can be obtained .

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

PropertyMeasurementUnit
Sizeaaaaaaaaaa
Login to view more

Abstract

The invention discloses a 360-degree complete cycle type LED lamp filament based on purple light chips. The 360-degree complete cycle type LED lamp filament based on the purple light chips is composed of a substrate, the chips, transparent silica gel, inorganic nanoparticles and phosphor gel; the phosphor gel is formed by organic silicon resin, multicolor phosphor and coupling agents through an injection moulding process, and is arranged on the outer side of the transparent silica gel. The chips are the purple light chips, the emission wavelength range is 360-410 nm, the chips are fixed to one face or the obverse side and the reverse side of the substrate, the inorganic nanoparticles are TiO2 or ZrO2, the particle size is 10-100 nm, the inorganic nanoparticles are distributed in the transparent silica gel, the multicolor phosphor is red, green and blue mixed phosphor of a phosphate or silicate system, and the coupling agents are silane coupling agents. The 360-degree complete cycle type LED lamp filament based on the purple light chips has the advantages of being high in color reduction degree, even and soft in light color, capable of emitting light by 360 degrees, high in light emitting efficiency, and the like.

Description

technical field [0001] The invention relates to a 360° full-circle light-emitting LED filament based on a purple light chip, which belongs to the field of semiconductor lighting. Background technique [0002] LED lighting is considered as the fourth-generation lighting product due to its own advantages such as high luminous efficiency, long life, energy saving and environmental protection, and fast response. It is currently more and more widely used in the field of lighting. [0003] At present, the mainstream white light LED in the market is realized by blue light chips exciting YAG yellow phosphor, but the red part of the white light spectrum prepared by this method is missing, the color reproduction of the light source is low, and the color rendering index of simply adding red powder is difficult to exceed 95. , which seriously restricts the development of LEDs to high light quality; at the same time, whether the light source prepared in the current packaging form is a si...

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
IPC IPC(8): H01L33/48H01L33/64H01L33/58H01L33/50H01L33/56
CPCH01L33/486H01L33/504H01L33/56H01L33/58H01L33/641H01L2933/0033H01L2933/0041H01L2933/0058H01L2933/0075
Inventor 卓宁泽刘光熙王海波尹娟李登宇李博超
Owner CHANGZHOU JINGXI LIGHTING
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap