Title:
TANDEM ORGANIC LIGHT EMITTING DIODE DEVICE AND DISPLAY APPARATUS
Document Type and Number:
WIPO Patent Application WO/2015/067098
Kind Code:
A1
Abstract:
A tandem organic light emitting diode device and a display apparatus. The tandem organic light emitting diode device comprises: a reflection electrode (1) and a transmission electrode (2); n organic light emitting layers (3) arranged between the reflection electrode (1) and the transmission electrode (2), wherein n is a positive integer larger than or equal to 2; and a connecting unit (4) arranged between every two adjacent organic light emitting layers (3). The distance h between the two adjacent organic light emitting layers (3) satisfies Formula I. Of the two adjacent organic light emitting layers (3), the organic light emitting layer (3) close to the reflection electrode (1) is a first organic light emitting layer (31), wherein λ1 represents the wavelength at the maximum energy position of a spectral energy distribution curve of light emitted by the first organic light emitting layer (31), while the organic light emitting layer (3) close to the transmission electrode (2) is a second organic light emitting layer (32), wherein λ2 represents the wavelength at the maximum energy position of a spectral energy distribution curve of light emitted by the second organic light emitting layer (32), and λ2 is larger than λ1.
Inventors:
WU CHANG YEN (CN)
Application Number:
PCT/CN2014/086995
Publication Date:
May 14, 2015
Filing Date:
September 20, 2014
Export Citation:
Assignee:
BOE TECHNOLOGY GROUP CO LTD (CN)
International Classes:
H01L27/32; H01L51/52
Foreign References:
| CN103531721A | 2014-01-22 | |||
| US20060244370A1 | 2006-11-02 | |||
| CN101816080A | 2010-08-25 | |||
| CN103000820A | 2013-03-27 | |||
| DE102012203466A1 | 2013-09-12 | |||
| US20090102362A1 | 2009-04-23 | |||
| US20120241794A1 | 2012-09-27 |
Attorney, Agent or Firm:
LIU, SHEN & ASSOCIATES (CN)
北京市柳沈律师事务所 (CN)
北京市柳沈律师事务所 (CN)
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