ELECTROLUMINESCENT DISPLAY DEVICE

To provide an electroluminescent display device that can reduce bezel width, improve reliability, and improve a heat dissipation effect.SOLUTION: An electroluminescent display device comprises: a substrate including a display area and a non-display area that encloses the display area; a planarizatio...

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Bibliographic Details
Main Authors PANG HEESUK, KANG MINJOO, LIM HEECHUL, SHIN JOOHWAN, YANG SUK
Format Patent
LanguageEnglish
Japanese
Published 25.01.2024
Subjects
ADVERTISING
CRYPTOGRAPHY
DISPLAY
DISPLAYING
EDUCATION
ELECTRICITY
LABELS OR NAME-PLATES
PHYSICS
SEALS
SIGNS
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Summary:To provide an electroluminescent display device that can reduce bezel width, improve reliability, and improve a heat dissipation effect.SOLUTION: An electroluminescent display device comprises: a substrate including a display area and a non-display area that encloses the display area; a planarization layer that is disposed on the substrate and extends from the display area to the non-display area; a bank over the planarization layer; an organic layer over the bank; a cathode over the organic layer; a trench pattern that is disposed in the non-display area and in which the cathode and the organic layer are removed; and a step relieving layer that fills the trench pattern and is disposed to planarize an upper portion of the trench pattern. An adhesive layer can delay moisture permeation speed onto a side surface by covering the trench pattern, thereby improving reliability and reducing bezel width.SELECTED DRAWING: Figure 3 【課題】ベゼル幅の縮小、信頼性改善、放熱効果向上を実現可能な電界発光表示装置を提供する。【解決手段】本発明の一実施例に係る電界発光表示装置は、表示領域及び表示領域を囲む非表示領域を含む基板、基板上に配置され、表示領域から非表示領域に延びた平坦化層、平坦化層上に配置されるバンク、バンク上に配置される有機層、有機層上に配置されるカソード、非表示領域に配置され、カソード及び有機層が除去されたトレンチパターン、及びトレンチパターンを充填し、トレンチパターンの上部を平坦化するように配置された段差緩和層を含み、粘着層は、トレンチパターンを覆うことで側面への水分浸透速度を遅延させることができ、そこで信頼性を向上させることができ、ベゼル幅を縮小することができる。【選択図】図３
Bibliography:Application Number: JP20230112747