Title:
DISPLAY DEVICE AND ELECTRONIC APPARATUS
Document Type and Number:
WIPO Patent Application WO/2022/234380
Kind Code:
A1
Abstract:
Provided is a novel display apparatus that has excellent convenience, usefulness, or reliability. This display device has a blue light emitting device and a green light emitting device. The blue light emitting device includes a first unit, a second unit, and a first intermediate layer, and the first unit and the second unit emit blue light. The first intermediate layer is sandwiched between the first unit and the second unit, and electrons are supplied to one unit, while holes are supplied to the other unit. The second unit includes a first layer containing a first light emitting material, and the first layer includes a center plane at a first distance from a first reflective film. The green light emitting device includes a third unit, a fourth unit, and a second intermediate layer. The third unit and the fourth unit emit green light. The second intermediate layer is sandwiched between the third unit and the fourth unit, and electrons are supplied to one unit, while holes are supplied to the other unit. The fourth unit includes a second layer containing a second light emitting material, and the second layer includes a center plane at a second distance from a second reflective film. The second distance is shorter than the first distance.
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Inventors:
SEO SATOSHI (JP)
OHSAWA NOBUHARU (JP)
OHSAWA NOBUHARU (JP)
Application Number:
PCT/IB2022/053760
Publication Date:
November 10, 2022
Filing Date:
April 22, 2022
Export Citation:
Assignee:
SEMICONDUCTOR ENERGY LAB (JP)
International Classes:
H05B33/12; G09F9/30; H01L27/32; H01L51/50; H05B33/02
Foreign References:
| US20170179418A1 | 2017-06-22 | |||
| JP2016039151A | 2016-03-22 |
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