LIGHT EMITTING DISPLAY PANEL AND LIGHT EMITTING DISPLAY APPARATUS USING THE SAME

An objective of the present invention is to provide a light emitting display panel in which a cathode is connected to an auxiliary cathode electrode through an undercut region provided at a lower end of a planarization layer, and a light emitting display apparatus using the same. To this end, the li...

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Bibliographische Detailangaben
Hauptverfasser:	JIHEUN LEE, YOUNGIN JANG, EUNJI PARK
Format:	Patent
Sprache:	eng ; kor
Schlagworte:	ADVERTISING ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION BASIC ELECTRIC ELEMENTS CRYPTOGRAPHY DISPLAY EDUCATION ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ELECTRICITY PHYSICS SEALS SEMICONDUCTOR DEVICES
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Beschreibung
Zusammenfassung:	An objective of the present invention is to provide a light emitting display panel in which a cathode is connected to an auxiliary cathode electrode through an undercut region provided at a lower end of a planarization layer, and a light emitting display apparatus using the same. To this end, the light emitting display panel according to the present invention comprises a substrate, an auxiliary cathode electrode provided on the substrate, a passivation layer covering the auxiliary cathode electrode, an anode provided at an upper end of the passivation layer, a bank surrounding the anode, a light emitting layer provided at an upper end of the anode, and a cathode provided at an upper end of the light emitting layer, wherein the cathode is connected to the auxiliary cathode electrode through a connection electrode exposed in an undercut region penetrating the bank and the passivation layer. 본 발명의 목적은, 평탄화층 하단에 구비된 언더컷 영역을 통해 캐소드가 보조 캐소드 전극과 연결되어 있는, 발광표시패널 및 이를 이용한 발광표시장치를 제공하는 것이며, 이를 위해, 본 발명에 따른 발광표시패널은, 기판, 상기 기판에 구비되는 보조 캐소드 전극, 상기 보조 캐소드 전극을 커버하는 보호층, 상기 보호층 상단에 구비되는 애노드, 상기 애노드의 외곽을 감싸고 있는 뱅크, 상기 애노드 상단에 구비되는 발광층 및 상기 발광층 상단에 구비되는 캐소드를 포함하고, 상기 캐소드는 상기 뱅크 및 상기 보호층을 관통하는 언더컷 영역에 노출되어 있는 연결전극을 통해 상기 보조 캐소드 전극과 연결된다.