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Light emitting display panel and light emitting display apparatus including the same

專利號
US12144214B2
公開日期
2024-11-12
申請人
LG DISPLAY CO., LTD.(KR Seoul)
發(fā)明人
YoungIn Jang; Ji-Heun Lee; EunJi Park
IPC分類
H10K59/131; G09G3/3291; H10K59/122
技術(shù)領(lǐng)域
electrode,cathode,layer,auxiliary,emitting,152a,159c,may,light,be
地域: Seoul

摘要

A light emitting display panel and a light emitting display apparatus including the same, in which a cathode is connected to an auxiliary cathode electrode through an undercut region provided under a planarization layer, are provided. The light emitting display panel includes a substrate, an auxiliary cathode electrode provided in the substrate, a passivation layer covering the auxiliary cathode electrode, an anode provided on the passivation layer, a bank surrounding an outer portion of the anode, a light emitting layer provided on the anode, and a cathode provided on the light emitting layer, the cathode is connected to the auxiliary cathode electrode through a connection electrode exposed at an undercut region passing through the bank and the passivation layer.

說明書

Moreover, in a case where the light emitting display panel 100 according to the present disclosure is a transparent panel, as illustrated in FIG. 4, each pixel 110 may include the undercut portion Y2, the opening portion Y3, the blocking portion Y4, and a light transmitting portion Y5. The light transmitting portion Y5 may be a region through which light passes. That is, light flowing in through the cathode 162 on the light transmitting portion Y5 may be transferred to the outside of the light emitting display panel 100 through the substrate 151 under the light transmitting portion Y5, and light flowing in through the substrate 151 under the light transmitting portion Y5 may be transferred to the outside of the light emitting display panel 100 through the cathode 162 on the light transmitting portion Y5.

In the light emitting display panel 100 including the light transmitting portion Y5, the undercut portion Y2 may be provided between two adjacent pixels of the plurality of pixels, or may be provided between only some pixels.

Subsequently, the light emitting layer 161 may be provided on the anode 159c.

The light emitting layer 161 may be divided for each pixel, or may be provided on a whole surface of the substrate 161 to cover the bank 160 and the anodes 161 included in all pixels.

權(quán)利要求

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