Title:
ORGANIC EL DISPLAY DEVICE AND MANUFACTURING METHOD OF ORGANIC EL DISPLAY DEVICE
Document Type and Number:
Japanese Patent JP2015201325
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide an organic EL display device of which the cost of manufacture is further reduced.SOLUTION: The organic EL display device includes: a plurality of pixels which are disposed in a matrix shape within a display area; a lower electrode (225) disposed in each of the plurality of pixels and formed from a conductive material; an upper electrode (227) which is disposed so as to cover the entire display area and formed from a conductive material; an organic layer (226) disposed between the lower electrode and the upper electrode and formed from a plurality of layers each including a light-emitting layer formed from an organic material; wiring (229) formed outside of the display area and formed from a conductor; and a tapered structure layer formed on the wiring and including a tapered part that extends in such a manner that the wiring is covered with a side face that is not in contact with the wiring. At least one of the organic layers is formed on the tapered structure layer, the tapered structure layer forms a contact hole surrounded with the side face, and the upper electrode is in contact with the wiring via the contact hole.
Inventors:
MATSUMOTO YUKO
Application Number:
JP2014079181A
Publication Date:
November 12, 2015
Filing Date:
April 08, 2014
Export Citation:
Assignee:
JAPAN DISPLAY INC
International Classes:
H05B33/10; H01L51/50; H05B33/04; H05B33/06; H05B33/12; H05B33/22; H05B33/26; H05B33/28
Domestic Patent References:
| JP2001109398A | 2001-04-20 | |||
| JP2005038833A | 2005-02-10 | |||
| JP2005093398A | 2005-04-07 |
Attorney, Agent or Firm:
Haruka International Patent Office