Title:
DISPLAY DEVICE AND PHOTOSENSITIVE COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2023/190218
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing an organic EL display that, in obtaining a desired current density, has both excellent light emission characteristics which can be driven at low voltages and high reliability of light-emitting elements. This display device includes a substrate, a first electrode, a second electrode, a pixel division layer, and an organic layer including a light-emitting layer, wherein: the pixel division layer contains (D–DL) colorants; the optical concentration at wavelengths of visible light is 0.5–3.0 per 1 μm of film thickness of the pixel division layer; in plan view, a plurality of pixel sections are provided; and, in the pixel sections, at a position 3 nm deep from the surface of the first electrode on the side contacting the organic layer including the light-emitting layer, the detected intensity of sulfur ions (S−), the detected intensity of chlorine ions (Cl−), the detected intensity of bromine ions (Br−), and the sum of the detected intensity of chlorine ions (Cl{−) and the detected intensity of bromine ions (Br−), as measured by time-of-flight secondary ion mass spectrometry, fulfill a relationship represented by a specific general formula.
Inventors:
TANIGAKI YUGO (JP)
NISHIOKA HIROKI (JP)
HONMA TAKASHI (JP)
NISHIOKA HIROKI (JP)
HONMA TAKASHI (JP)
Application Number:
PCT/JP2023/011950
Publication Date:
October 05, 2023
Filing Date:
March 24, 2023
Export Citation:
Assignee:
TORAY INDUSTRIES (JP)
International Classes:
G02B5/20; H10K59/122; G03F7/004; G09F9/30; H10K50/816; H10K50/818; H10K50/842; H10K59/173; H10K59/38; H10K71/60; H10K85/10; H10K102/10
Domestic Patent References:
| WO2021024928A1 | 2021-02-11 | |||
| WO2021125080A1 | 2021-06-24 | |||
| WO2019065359A1 | 2019-04-04 | |||
| WO2022070946A1 | 2022-04-07 |
Foreign References:
| JP2017504817A | 2017-02-09 | |||
| JP2005071742A | 2005-03-17 |
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