Title:
有機EL発光装置
Document Type and Number:
Japanese Patent JP4771501
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide an organic electroluminescent device to be satisfactorily used as the backlight of a color liquid crystal display device. SOLUTION: An organic electroluminescent device is furnished on a transparent board 1 with organic electroluminescent regions 5r, 5g, 5b in a stripe form. One set of the electroluminescent regions 5r, 5g, 5b is formed to emit light red, green, and blue, and a number of such sets are arranged. Thereby the emitted colors of the regions 5r, 5g, 5b are mixed to generate white light emission. Therein lowering in the light emitting efficiency can be avoided by introducing a structure in which light emitting materials for organic EL elements emitting different colors exist mixedly in a single element. Accordingly, the resultant organic electroluminescent device becomes thinner than backlight using a conventional fluorescent tube and has high light emitting efficiency.
Inventors:
Tomoyuki Shirasaki
Go Ozaki
Go Ozaki
Application Number:
JP7831999A
Publication Date:
September 14, 2011
Filing Date:
March 23, 1999
Export Citation:
Assignee:
CASIO COMPUTER CO.,LTD.
International Classes:
G09F9/30; H05B33/12; H01L51/50; H05B33/14; H01L27/32
Domestic Patent References:
| JP200098919A | ||||
| JP2000231992A |