TW200608597A - Light emitting diode with diffraction lattice - Google Patents

Light emitting diode with diffraction lattice

Info

Publication number
TW200608597A
TW200608597A TW093125091A TW93125091A TW200608597A TW 200608597 A TW200608597 A TW 200608597A TW 093125091 A TW093125091 A TW 093125091A TW 93125091 A TW93125091 A TW 93125091A TW 200608597 A TW200608597 A TW 200608597A
Authority
TW
Taiwan
Prior art keywords
cpdl
led
light
light emitting
diffraction lattice
Prior art date
Application number
TW093125091A
Other languages
Chinese (zh)
Other versions
TWI276232B (en
Inventor
Pei-Jih Wang
Pan-Tzu Chang
Wen-Chieh Huang
James Wang
Yury Georgieveich Shreter
Toomasovich Rebane Yury
Ivanovich Gorbunov Ruslan
Original Assignee
Arima Optoelectronics Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Arima Optoelectronics Corp filed Critical Arima Optoelectronics Corp
Priority to TW93125091A priority Critical patent/TWI276232B/en
Publication of TW200608597A publication Critical patent/TW200608597A/en
Application granted granted Critical
Publication of TWI276232B publication Critical patent/TWI276232B/en

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  • Electroluminescent Light Sources (AREA)
  • Led Devices (AREA)

Abstract

A method of fabricating light emitting diodes (LED) with a colour purifying diffraction lattice (CPDL) is suggested, the essence of the invention is in the use of the coherent scattering of the light by the CPDL for colour purifying of the light emitted by the LED and enhancement its extraction efficiency, the CPDL is a hexagonal two-dimensional periodical pattern on the surface of the LED structure or an internal interface resulting in the periodical variation in the refractive index with the period d. The period of CPDL satisfies the equation d=m λ/n, where m is a positive integer number, λ is the wavelength of the light generated by LED, and n is the refraction index of LED structure. The height of the hexagonal islands forming CPDL is h=λ(2l+1)/2n, l is a positive integer number or zero. Use of CPDL allows to convert the laterally propagating light into the vertically propagating and simultaneously filter its spectrum.
TW93125091A 2004-08-20 2004-08-20 Light emitting diode with diffraction lattice TWI276232B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
TW93125091A TWI276232B (en) 2004-08-20 2004-08-20 Light emitting diode with diffraction lattice

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW93125091A TWI276232B (en) 2004-08-20 2004-08-20 Light emitting diode with diffraction lattice

Publications (2)

Publication Number Publication Date
TW200608597A true TW200608597A (en) 2006-03-01
TWI276232B TWI276232B (en) 2007-03-11

Family

ID=38646182

Family Applications (1)

Application Number Title Priority Date Filing Date
TW93125091A TWI276232B (en) 2004-08-20 2004-08-20 Light emitting diode with diffraction lattice

Country Status (1)

Country Link
TW (1) TWI276232B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102124583A (en) * 2008-06-26 2011-07-13 3M创新有限公司 Semiconductor light converting construction

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102124583A (en) * 2008-06-26 2011-07-13 3M创新有限公司 Semiconductor light converting construction
CN102124583B (en) * 2008-06-26 2013-06-19 3M创新有限公司 Semiconductor light converting construction

Also Published As

Publication number Publication date
TWI276232B (en) 2007-03-11

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Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees