Title:
DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/190317
Kind Code:
A1
Abstract:
According to the present invention, a display device includes, on the same substrate, a first electrode, a second electrode, a pixel separation layer, a pixel dimension control layer, an organic layer that includes a light-emission layer, a sealing layer, a color filter layer, and a black matrix layer. The pixel separation layer includes a (D-DL) colorant, the optical density of the pixel separation layer for wavelengths of visible light is 0.5–3.0 per 1 μm of film thickness, a pixel dimension control layer part is formed so as to cover at least a portion of a pixel separation layer part and at least a portion of a first electrode part as seen in plan view, and the pixel dimension control layer satisfies at least one of conditions (1)–(3). (1) The pixel dimension control layer does not contain a (D-DL) colorant. (2) The pixel dimension control layer includes a (D-DL) colorant, and the optical density of the pixel dimension control layer for wavelengths of visible light is 0.0–0.3 per 1 μm of film thickness. (3) The pixel dimension control layer includes a compound that has a (C2x-DL) indene carboxylic acid ester structure and/or sulfonic acid aryl ester structure. The present invention provides an organic EL display that has excellent pattern dimension uniformity, excellent outside light reflection suppression effects, high light-emission intensity, and high light-emitting element reliability.
Inventors:
TANIGAKI YUGO (JP)
Application Number:
PCT/JP2023/012163
Publication Date:
October 05, 2023
Filing Date:
March 27, 2023
Export Citation:
Assignee:
TORAY INDUSTRIES (JP)
International Classes:
H10K59/122; G02B5/20; G09F9/30; H05B33/02; H05B33/04; H05B33/12; H05B33/14; H05B33/22; H10K50/84; H10K50/842; H10K50/86; H10K59/12; H10K59/173; H10K59/38; H10K85/10; H10K85/60
Domestic Patent References:
| WO2013047621A1 | 2013-04-04 | |||
| WO2021125080A1 | 2021-06-24 | |||
| WO2019065359A1 | 2019-04-04 | |||
| WO2022070946A1 | 2022-04-07 |
Foreign References:
| US20200328263A1 | 2020-10-15 | |||
| JP2006089597A | 2006-04-06 | |||
| JP2008034591A | 2008-02-14 | |||
| JP2016027374A | 2016-02-18 | |||
| JP2004127933A | 2004-04-22 | |||
| JP2017059413A | 2017-03-23 | |||
| JP2019102450A | 2019-06-24 |
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