The present invention discloses a compound is represented by the following formula (I) or formula (II), the organic EL device employing the compound as phosphorescent host material, hole blocking material, hole blocking electron transport material, can display good performance.
The same definition as described in the present invention.
The present invention discloses a novel phenanthroline-based compound is represented by the following formula (I), the organic EL device employing the phenanthroline-based compound as hole blocking material/electron transport material or phosphorescent host can display good performance.
L, m, n, X, Y and R
1
to R
20
each have the same meaning as described in the present invention.
ORGANIC COMPOUND AND ORGANIC ELECTROLUMINESCENCE DEVICE USING THE SAME
申请人:YEN Feng-Wen
公开号:US20200235315A1
公开(公告)日:2020-07-23
The present invention discloses an organic compound and an organic electroluminescence device using the organic compound as a host material, a fluorescent guest material, an electron transporting or a hole blocking material in the light emitting layer of the organic electroluminescence device. The organic compound may be for lowering a driving voltage, power consumption or increasing a current efficiency or half-life of the organic electroluminescence device.
The same definition as described in the present invention.
Provided are compounds comprising a ligand L
A
of Formula I
提供了包含配体LA的化合物,其化学式为I。
POLYHETEROAROMATIC COMPOUND AND ORGANIC ELECTROLUMINESCENCE DEVICE USING THE SAME
申请人:YEN FENG-WEN
公开号:US20190123284A1
公开(公告)日:2019-04-25
The present invention discloses a novel polyheteroaromatic compound derived from 7′,7′-dimethyl-5′,7′-dihydrospiro[cyclopenta[1,2-b:5,4-b′-dithiophene-4,13′-indeno[1,2-b]acridine] core structures. The polyheteroaromatic compound can be used as organic electroluminescence materials for use in an organic electroluminescence device and electronic equipment.