Invention Grant
- Patent Title: Organic EL display and method of manufacturing the same
- Patent Title (中): 有机EL显示器及其制造方法
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Application No.: US11562687Application Date: 2006-11-22
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Publication No.: US07521858B2Publication Date: 2009-04-21
- Inventor: Hirofumi Kubota , Norihisa Maeda , Masuyuki Oota , Kenji Mitsui
- Applicant: Hirofumi Kubota , Norihisa Maeda , Masuyuki Oota , Kenji Mitsui
- Applicant Address: JP Tokyo
- Assignee: Toshiba Matsushita Display Technology Co., Ltd.
- Current Assignee: Toshiba Matsushita Display Technology Co., Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, P.C.
- Priority: JP2005-340219 20051125; JP2005-340220 20051125
- Main IPC: H01J1/62
- IPC: H01J1/62

Abstract:
An organic EL display includes a substrate, and organic EL elements arranged on the substrate. Each organic EL element includes an anode, a cathode, an emitting layer made of an organic material and interposed therebetween, and a hole transporting layer made of an organic material and interposed between the emitting layer and the anode. The hole transporting layer includes a first layer and a second layer facing the substrate with the first layer interposed therebetween. The second layer is equal in compositions with the first layer and different in degrees of crystallinity from the first layer.
Public/Granted literature
- US20070120474A1 ORGANIC EL DISPLAY AND METHOD OF MANUFACTURING THE SAME Public/Granted day:2007-05-31
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