Title:
METHOD OF MANUFACTURING LIGHT-EMITTING DEVICE
Document Type and Number:
WIPO Patent Application WO/2012/023425
Kind Code:
A1
Abstract:
A light-emitting device comprises an LED element that radiates light with a prescribed wavelength; and a wavelength conversion unit further comprising phosphors that are excited by light radiated from the LED element and radiate fluorescence with a wavelength different from the excited wavelength. A method of manufacturing the light-emitting device is provided with: a process for jetting out phosphor dispersion liquid (44), which comprises the phosphors and layer-formed silicate minerals, towards the LED element from a spray apparatus (80), and coating the LED element therewith; a process, after the process for coating the phosphor dispersion liquid (44) onto the LED element, for jetting out precursor solution (42) comprising organometallic compound towards the LED element from a spray apparatus (30), and coating the LED element therewith; and a process for heating the LED element that was coated with the phosphor dispersion liquid (44) and the precursor solution (42), to form the wavelength conversion unit.
Inventors:
KOJIMA TAKESHI (JP)
Application Number:
PCT/JP2011/067635
Publication Date:
February 23, 2012
Filing Date:
August 02, 2011
Export Citation:
Assignee:
KONICA MINOLTA OPTO INC (JP)
KOJIMA TAKESHI (JP)
KOJIMA TAKESHI (JP)
International Classes:
H01L33/56; H01L33/50
Foreign References:
| JPH11251640A | 1999-09-17 | |||
| JP2009256670A | 2009-11-05 | |||
| JP2004153109A | 2004-05-27 | |||
| JPH11106685A | 1999-04-20 | |||
| JP2001181614A | 2001-07-03 | |||
| JP2010080588A | 2010-04-08 | |||
| JP2008227458A | 2008-09-25 | |||
| JP2002314142A | 2002-10-25 | |||
| JP2002185046A | 2002-06-28 | |||
| JP2004153109A | 2004-05-27 |
Attorney, Agent or Firm:
KOYO INTERNATIONAL PATENT FIRM (JP)
Patent business corporation Mitsuaki international patent firm (JP)
Patent business corporation Mitsuaki international patent firm (JP)
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Claims: