Title:
LIGHT-EMITTING DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/210339
Kind Code:
A1
Abstract:
Provided is a light-emitting device that can more reliably increase light extraction efficiency and can also reduce viewing angle dependence. A light-emitting device 10 according to one embodiment comprises: a substrate 12; a first electrode layer 14 that is provided on the substrate; an intermediate structure 16 that is provided on the first electrode layer and includes a light-emitting layer 161; and a second electrode layer 18 that is provided on the intermediate structure. One of the first electrode layer and the second electrode layer is a light-transmitting electrode layer, and the other is a light-reflecting electrode layer. When λG [nm] is defined as the peak wavelength in a color matching function corresponding to green in an XYZ color system, the optical distance between the light-transmitting electrode layer and a λG-wavelength light emission location 165 in the intermediate structure is within any one range among a first range of 140 nm to 200 nm, a second range of 400 nm to 460 nm, and a third range of 680 nm to 720 nm. The optical distance between the emission location and the light-reflecting electrode layer is an odd multiple of λG/4.
More Like This:
| JP2021173909 | DISPLAY DEVICE |
| JP2000021563 | ORGANIC EL ELEMENT AND ITS MANUFACTURE |
| WO/2019/082024 | LIGHT-EMITTING ELEMENT, DISPLAY DEVICE, ELECTRONIC DEVICE, AND LIGHTING DEVICE |
Inventors:
FUJII TAKASHI (JP)
KISHIKAWA EIJI (JP)
MORISHIMA SHINICHI (JP)
KISHIKAWA EIJI (JP)
MORISHIMA SHINICHI (JP)
Application Number:
PCT/JP2021/011073
Publication Date:
October 21, 2021
Filing Date:
March 18, 2021
Export Citation:
Assignee:
SUMITOMO CHEMICAL CO (JP)
International Classes:
H05B33/02; H01L51/50; H05B33/12; H05B33/24; H05B33/26; H05B33/28
Foreign References:
| JP2018190702A | 2018-11-29 | |||
| JP2011210677A | 2011-10-20 | |||
| JP2011210678A | 2011-10-20 | |||
| JP2009266524A | 2009-11-12 | |||
| JP2017098036A | 2017-06-01 |
Attorney, Agent or Firm:
NAKAYAMA, Tohru et al. (JP)
Download PDF: