Title:
LIGHT EMITTING DEVICE
Document Type and Number:
Japanese Patent JP2011091418
Kind Code:
A
Abstract:
To provide a light emitting device that enables a color display with a good color balance.
In the light emitting device for color display, a triplet compound is used for a light emitting layer 15 of an EL element emitting red color, and a singlet compound is used for a light emitting layer 16 of an EL element emitting green color and a light emitting layer 17 of an EL element emitting blue color. Thus, an operation voltage of the EL element emitting red color may be made the same as the EL element emitting green color and the EL element emitting blue color. Accordingly, the color display with good color balance can be achieved.
Inventors:
YAMAZAKI SHUNPEI
Application Number:
JP2010272180A
Publication Date:
May 06, 2011
Filing Date:
December 07, 2010
Export Citation:
Assignee:
SEMICONDUCTOR ENERGY LAB
International Classes:
H01L51/50; B32B9/00; B32B19/00; G09F9/30; H01L27/32; H05B33/00; H05B33/12; H05B33/14; H01L51/00; H01L51/30
Domestic Patent References:
| JPH1095971A | 1998-04-14 | |||
| JPH10255983A | 1998-09-25 | |||
| JPH10308281A | 1998-11-17 | |||
| JPH10183112A | 1998-07-14 | |||
| JPH1060427A | 1998-03-03 | |||
| JPH10214060A | 1998-08-11 | |||
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Other References:
JPN6011040214; 鬼島靖典: 'ＲＧＢマルチカラー素子' 応用物理学会 有機分子・バイオエレクトロニクス分科会 第６回講習会（１９９７年）有機ＥＬ素子の基礎か , 19971211, １５５-１６３
JPN6011040217; Ｍ．Ａ．Ｂａｌｄｏ ｅｔ．ａｌ．: Ｎａｔｕｒｅ Ｖｏｌ．３９５, 19980910, １５１-１５４
JPN6011040217; Ｍ．Ａ．Ｂａｌｄｏ ｅｔ．ａｌ．: Ｎａｔｕｒｅ Ｖｏｌ．３９５, 19980910, １５１-１５４
Attorney, Agent or Firm:
Nobuyuki Watanabe