IP Library Granted Patent US 11,244,987
Granted Patent B2
US 11,244,987 · App. 16/709,654 · Granted Feb 8, 2022

Organic light emitting display apparatus

Inventors: Dohyung Kim (Paju-si, KR); Saemleenuri Lee (Paju-si, KR); Seungwon Yoo (Paju-si, KR); Joonsuk Lee (Paju-si, KR); Seongwoo Park (Paju-si, KR)
Assignee: LG Display Co., Ltd.
H01L27/3223H01L27/3258H01L27/3262H01L27/3272H01L27/3279H01L51/56H01L27/3248H01L2251/568
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Quick Facts
Patent No.
US 11,244,987
App. No.
16/709,654
Granted
Feb 8, 2022
Kind
B2
Abstract

An organic light emitting display apparatus is disclosed, wherein the organic light emitting display apparatus comprises a driving thin film transistor provided on a substrate and disposed in a pixel area including a plurality of sub pixels; an organic light emitting diode electrically connected with the driving thin film transistor; and a repair portion provided at one side of the organic light emitting diode, wherein the organic light emitting diode is electrically connected with the driving thin film transistor through the repair portion.

Claims (29)

1. An organic light emitting display apparatus comprising:

a driving thin film transistor provided on a substrate and disposed in a pixel area including a plurality of sub pixels;

an organic light emitting diode electrically connected with the driving thin film transistor; and

a repair portion provided at one side of the organic light emitting diode,

wherein the organic light emitting diode is electrically connected with the driving thin film transistor through the repair portion,

wherein the organic light emitting diode includes an anode electrode connected with the repair portion, and

wherein the anode electrode includes an anode electrode first portion and an anode electrode second portion which are separated from each other and are provided horizontally within one sub pixel, wherein each of the anode electrode first portion and the anode electrode second portion is connected with the repair portion.

2. The organic light emitting display apparatus according to claim 1 , wherein the driving thin film transistor includes:

an active layer;

a gate electrode provided above or below the active layer;

a gate insulating film disposed between the active layer and the gate electrode;

a source electrode being in contact with one side of the active layer; and

a drain electrode being in contact with another side of the active layer,

wherein the driving thin film transistor further includes an interlayer dielectric disposed to surround the active layer, the gate electrode and the gate insulating film, and configured to include a contact hole so as to bring the source and drain electrodes in contact with the active layer, and the drain electrode is connected with the repair portion.

3. The organic light emitting display apparatus according to claim 2 , wherein the organic light emitting diode further includes:

an emission layer provided on the anode electrode; and

a cathode electrode provided on the emission layer.

4. The organic light emitting display apparatus according to claim 3 , wherein the repair portion includes:

a first repair electrode provided on the interlayer dielectric; and

a second repair electrode at least partially overlapped with the first repair electrode, and connected with the anode electrode.

5. The organic light emitting display apparatus according to claim 4 , wherein the repair portion includes at least one cutting point.

6. The organic light emitting display apparatus according to claim 4 , wherein the first repair electrode and the second repair electrode are formed of different electrode materials.

7. The organic light emitting display apparatus according to claim 4 , wherein the first repair electrode is formed in a same layer as the source and drain electrodes.

8. The organic light emitting display apparatus according to claim 4 , wherein the second repair electrode is formed in a same layer as the anode electrode of the organic light emitting diode, and is connected with the driving thin film transistor.

9. The organic light emitting display apparatus according to claim 8 , wherein the repair portion includes a first cutting point and a second cutting point which correspond to the anode electrode first portion and the anode electrode second portion respectively.

10. The organic light emitting display apparatus according to claim 1 , further comprising a planarization layer provided on the driving thin film transistor,

wherein the organic light emitting diode is provided on the planarization layer.

11. The organic light emitting display apparatus according to claim 1 , wherein the pixel area includes an emission area having the plurality of sub pixels, and a transmission area disposed adjacent to the emission area.

12. The organic light emitting display apparatus according to claim 11 , wherein the pixel area further includes a repair area protruding from at least one side of the emission area, and the repair portion is prepared in the repair area.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 10, 2019
From: KIM, DOHYUNG; LEE, SAEMLEENURI; YOO, SEUNGWON; LEE, JOONSUK; PARK, SEONGWOO
To: LG DISPLAY CO., LTD.
Reel/Frame 051237/0163 →
Priority Claims (1)
KR 10-2018-0170851 · Dec 27, 2018 · national
Continuity (1)
Related Publication 20200212131A1 · Jul 2, 2020
Cited By (2)
US 12,349,543 US 12,575,306