Title:
Fluorescent substance dispersion liquid and a manufacturing method of a LED device
Document Type and Number:
Japanese Patent JP6076909
Kind Code:
B2
Abstract:
The purpose of the invention is to form a uniform phosphor layer on an LED device by suppressing precipitation of the phosphor in a phosphor dispersion liquid. The present invention provides a phosphor dispersion liquid in which phosphor particles, stratified clay mineral microparticles, and oxide microparticles are dispersed in a solvent, wherein when a glass bottle of a 15-mm inner diameter is filled with 5 ml of the phosphor dispersion liquid and left standing, the time taken for a top clear liquid layer to form due to precipitation of the phosphor particles is four hours or longer. The viscosity of the phosphor dispersion liquid is preferably 80 to 1000 cp.
More Like This:
Inventors:
Jun Sato
Application Number:
JP2013535904A
Publication Date:
February 08, 2017
Filing Date:
September 25, 2012
Export Citation:
Assignee:
Konica Minolta Co., Ltd.
International Classes:
C09K11/02; B05D1/02; B05D5/06; C09K11/08; H01L33/50
Domestic Patent References:
| JP2004000928A | ||||
| JP2003297240A |
Foreign References:
| WO2011065321A1 | ||||
| WO2003034508A1 |
Attorney, Agent or Firm:
Koichi Washida
Takashi Kiso
Takashi Kiso
Previous Patent: ＣＰＵとＧＰＵを使用する異種システムにおいて仮想化を用いたアプリケ...
Next Patent: SCRAP CHARGING DEVICE IN SCRAP SHEAR
Next Patent: SCRAP CHARGING DEVICE IN SCRAP SHEAR