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

White-light luminous diode

A technology of light-emitting diodes and diodes, applied in electrical components, electric solid-state devices, circuits, etc., can solve the problems of poor color saturation and display color temperature, low luminous efficiency, etc., and achieve the effect of good color saturation and display color temperature

Inactive Publication Date: 2006-06-07
CHUNGHWA PICTURE TUBES LTD
View PDF0 Cites 14 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the low luminous efficiency of this kind of white light emitting diode, and it is a two-wavelength white light emitting diode (only blue light and yellow light are mixed), it is not as good as the other three wavelengths in terms of color saturation and display color temperature. white light emitting diode

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
  • White-light luminous diode
  • White-light luminous diode
  • White-light luminous diode

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0035] Please also refer to Figure 1A and 1B ,in Figure 1A It is a schematic cross-sectional view of a white light emitting diode according to a preferred embodiment of the present invention, and Figure 1B for Figure 1A The circuit diagram of white light emitting diode. In addition, in order to simplify the drawings to clearly express the features of the present invention, Figure 1A The cross-sectional schematic diagram does not show the relevant connecting wires or circuit of the substrate. Such as Figure 1A and 1B As shown, the white light emitting diode 100 includes a red light emitting diode chip 110, a blue light emitting diode chip 120 and a carrier 102, wherein the carrier 102 is, for example, a packaging substrate, and the red light emitting diode chip 110 and the blue light emitting diode chip 120 are, for example, disposed on In the cavity 102a on the surface of the carrier 102. In addition, the red light emitting diode chip 110 is connected in series with t...

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

A white light LED includes a loader and a luminous unit on it, a second LED chip and phosphor powder, in which, the luminous unit is formed by connecting a first LED chip and a resistor element in series and the first LED chip is suitable for emitting a first color light, a second luminous LED chip is suitable for emitting a second color light and is parallel to the luminous unit, besides, the phosphor powder is set above the second luminous LED chip to generate a third color light excited by the chip.

Description

technical field [0001] The present invention relates to a light-emitting diode, and in particular to a three-wavelength white light-emitting diode. Background technique [0002] Light-emitting diodes use III-V elements as the main material of the light-emitting layer, and apply current to the light-emitting layer to release excess energy in the form of light through the combination of electrons and holes, thereby achieving the purpose of light emission. Different from traditional lighting methods such as heating or discharging, since the lighting phenomenon of LEDs is cold lighting, their service life is longer, and no warm-up time (idling time) is required. In addition, light-emitting diodes also have the advantages of fast response speed, small size, low power consumption, low pollution (mercury-free), high reliability, and suitable for mass production, so they can be used in a wide range of fields. In recent years, due to the continuous improvement of the luminous effici...

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 Applications(China)
IPC IPC(8): H01L25/075
Inventor 陈庆仲
Owner CHUNGHWA PICTURE TUBES LTD
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