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Patent Searching and Data


Title:
LIGHT EMITTING DEVICE AND MANUFACTURING METHOD THEREOF
Document Type and Number:
Japanese Patent JP2004153109
Kind Code:
A
Abstract:

To provide a light emitting device employing a light emitting element such as an LED for obtaining white light emission wherein color unevenness or the like is less produced, and to provide a manufacturing method thereof.

The light emitting device 1 is formed by sealing the LED 7a with a transmissive sealing material 9 containing a phosphor 11. Since the transmissive sealing material 9 contains an anti-sedimentation material 12 for the phosphor 11, the sedimentation of the phosphor 11 in the transmissive sealing material 9 is prevented before curing to ensure a more uniform dispersed state of the phosphor 11, resulting to effectively suppress production of color unevenness or the like where emitting light.


Inventors:
SHIBATA KEIJI
Application Number:
JP2002318005A
Publication Date:
May 27, 2004
Filing Date:
October 31, 2002
Export Citation:
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Assignee:
MATSUSHITA ELECTRIC WORKS LTD
International Classes:
C09K11/02; H01L21/56; H01L23/29; H01L23/31; H01L33/32; H01L33/48; H01L33/50; H01L33/54; H01L33/56; H01L33/60; H01L33/62; (IPC1-7): H01L33/00; C09K11/02; H01L21/56; H01L23/29; H01L23/31
Attorney, Agent or Firm:
安藤 淳二