Japan, Feb. 24 -- SEMICONDUCTOR ENERGY LAB CO LTD has got intellectual property rights for 'LIGHT-EMITTING DEVICE, METAL COMPLEX, LIGHT-EMITTING APPARATUS, ELECTRONIC EQUIPMENT, AND ILLUMINATION APPARATUS.' Other related details are as follows:
Application Number: JP,2021-074649
Category (FI): H05B33/14@A,H05B33/22@A,H10K101:20,H10K101:25,H10K101:40,H10K101:60,H10K50/10,H10K50/12,H10K50/14,H10K50/16,H10K50/165,H10K50/17,H10K50/18,H10K50/85,H10K59/00,H10K59/10,H10K59/12,H10K59/65,H10K59/80,850,H10K59/95,H10K85/00,H10K85/30,H10K85/60,H10K85/60,400,H10K85/60,520
Stage: PROBLEM TO BE SOLVED: To provide a light-emitting device with high luminous efficiency.SOLUTION: A light-emitting device includes an anode, a cathode, and an EL layer existing between the anode and the cathode. The EL layer includes a light-emitting layer and an electron-transporting layer. The light-emitting layer contains a light-emitting material. The electron-transporting layer contains an organic compound with an electron-transporting property and metal complex of alkali metal. In the organic compound with an electron-transporting property, the normal light refractive index of the light emitted from the light-emitting material at a peak wavelength is 1.50 or more and 1.75 or less. In the metal complex of alkali metal, the normal light refractive index of the light emitted from the light-emitting material at the peak wavelength is 1.45 or more and 1.70 or less.SELECTED DRAWING: Figure 1 (Grant)
Filing Date: April 27, 2021
Publication Date: Jan. 13, 2022
The original document can be viewed at: https://www.j-platpat.inpit.go.jp/p0100
Disclaimer: Curated by HT Syndication.
