Title:
DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/224085
Kind Code:
A1
Abstract:
Provided is a display device having a wide viewing angle. The display device has a first light-emitting element and a second light-emitting element on a substrate. The first light-emitting element has a first pixel electrode, a first organic layer, and a common electrode, and the second light-emitting element has a second pixel electrode, a second organic layer, and a common electrode. In a top view of the substrate, the first light-emitting element has a first side and a second side shorter than the first side. The absolute value of a difference between a chromaticity difference between a chromaticity in the front direction and a chromaticity in a first direction and a chromaticity difference between the chromaticity in the front direction and a chromaticity in a second direction is 0.05 or less. A projection on the substrate in the first direction is parallel to the first side, and a projection on the substrate in the second direction is parallel to the second side. An angle formed between the first direction and the normal direction of a surface of the substrate is 70 degrees, and an angle formed between the second direction and the normal direction of the surface of the substrate is 70 degrees.
Inventors:
YAMAZAKI SHUNPEI (JP)
NAKAMURA DAIKI (JP)
YAMAUCHI RYO (JP)
OKAZAKI KENICHI (JP)
EGUCHI SHINGO (JP)
NAKAMURA DAIKI (JP)
YAMAUCHI RYO (JP)
OKAZAKI KENICHI (JP)
EGUCHI SHINGO (JP)
Application Number:
PCT/IB2022/053452
Publication Date:
October 27, 2022
Filing Date:
April 13, 2022
Export Citation:
Assignee:
SEMICONDUCTOR ENERGY LAB (JP)
International Classes:
G09F9/30; H01L27/32; H01L51/50; H05B33/02; H05B33/12; H05B33/22
Foreign References:
| JP2013175433A | 2013-09-05 | |||
| JP2005031251A | 2005-02-03 | |||
| JP2019067525A | 2019-04-25 | |||
| US20200168133A1 | 2020-05-28 | |||
| JP2014017239A | 2014-01-30 | |||
| US20200027932A1 | 2020-01-23 |
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