Title:
DISPLAY DEVICE, DISPLAY MODULE, ELECTRONIC APPARATUS, AND METHOD FOR MANUFACTURING DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/012565
Kind Code:
A1
Abstract:
The present invention provides a display device which has high display quality. The display device has: multiple light-emitting devices, each having a pixel electrode, a light-emitting layer, a functional layer, a common layer, and a common electrode in said order; and an insulating layer positioned between side surfaces of adjoining light-emitting layers. The light-emitting layer and the functional layer are disposed in the shape of an island for each of the light-emitting devices, and the common layer is shared by the multiple light-emitting devices. The common layer and the common electrode are disposed so as to cover the insulating layer. In a cross-sectional view, end parts of the insulating layer are tapered at a taper angle of greater than 0 degree but less than 90 degrees. Each of the multiple light-emitting devices has a first light-emitting material for emitting blue light and a second light-emitting material for emitting light having a longer wavelength than that of the blue light. Coloring layers are disposed so as to overlap with each of the multiple light-emitting devices.
Inventors:
YAMAZAKI SHUNPEI (JP)
SASAGAWA SHINYA (JP)
HODO RYOTA (JP)
SUGAYA KENTARO (JP)
HIURA YOSHIKAZU (JP)
FUJIE TAKAHIRO (JP)
JINBO YASUHIRO (JP)
SASAGAWA SHINYA (JP)
HODO RYOTA (JP)
SUGAYA KENTARO (JP)
HIURA YOSHIKAZU (JP)
FUJIE TAKAHIRO (JP)
JINBO YASUHIRO (JP)
Application Number:
PCT/IB2022/056780
Publication Date:
February 09, 2023
Filing Date:
July 22, 2022
Export Citation:
Assignee:
SEMICONDUCTOR ENERGY LAB (JP)
International Classes:
H05B33/22; G02B5/20; G09F9/00; G09F9/30; H05B33/02; H05B33/04; H05B33/10; H05B33/12
Domestic Patent References:
| WO2020004086A1 | 2020-01-02 |
Foreign References:
| JP2018201012A | 2018-12-20 | |||
| JP2018054728A | 2018-04-05 | |||
| JP2017157314A | 2017-09-07 | |||
| JP2009058897A | 2009-03-19 | |||
| JP2003332051A | 2003-11-21 | |||
| JP2008098106A | 2008-04-24 | |||
| JP2004192935A | 2004-07-08 | |||
| JP2008108482A | 2008-05-08 |
Other References:
MIYOSHI, KAZUTO ET AL.: "Development of low temperature curable positive-tone polyimide materials for organic electro luminescence displays", JAPANESE JOURNAL OF POLYMER SCIENCE AND TECHNOLOGY, SOCIETY OF POLYMER SCIENCE JP, JP, vol. 68, no. 4, 30 April 2011 (2011-04-30), JP , pages 160 - 170, XP009543262, ISSN: 0386-2186
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