IP Library Granted Patent US 9,548,342
Granted Patent B2
US 9,548,342 · App. 15/208,550 · Granted Jan 17, 2017

Organic white light emitting display apparatus

Inventors: Soo-Min Baek (Yongin-Si, KR); Min-Woo Kim (Yongin-Si, KR); Il-Nam Kim (Yongin-Si, KR); Jae-Ik Lim (Yongin-Si, KR)
Assignee: Samsung Display Co., Ltd.
H01L27/3246H01L27/322H01L27/3262H01L27/3276H01L51/525
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Quick Facts
Patent No.
US 9,548,342
App. No.
15/208,550
Granted
Jan 17, 2017
Kind
B2
Abstract

Disclosed is an organic white light emitting display apparatus. The organic white light emitting device includes a first substrate including a first sub-pixel area, a second sub-pixel area, a third sub-pixel area, and an organic light emitting device (OLED) that includes a first electrode, a second electrode, and an organic white light emitting layer interposed between the first and second electrodes, and emits whit light for respective sub-pixel areas, a second substrate including first, second, and third color filters of different colors formed on positions corresponding to the respective sub-pixel areas, the second substrate being arranged to face the first substrate, and a partition wall that is extended to an area between neighboring color filters among the color filters and partitions the sub-pixel areas, the partition wall being formed on the first substrate.

Claims (18)

1. A display apparatus comprising:

a substrate including a first sub-pixel area, a second sub-pixel area, a third sub-pixel area;

an thin film transistor (TFT) on the substrate;

a first electrode in each sub-pixel area and electrically connected to the TFT;

an organic light emitting layer over the first electrode;

a second electrode over the organic light emitting layer; and

a first pixel defined layer disposed between the TFT and the first electrode, wherein the first electrode is disposed over the first pixel defined layer such that i) a part of the first electrode and the organic light emitting layer are disposed within an opening defined in the first pixel defined layer and ii) a peripheral part of the first electrode is disposed over an inclined surface of the first pixel defined layer surrounding the opening.

2. The display apparatus of claim 1 , wherein the first electrode is connected to the TFT via a hole passing through the first defined layer.

3. The display apparatus of claim 1 , further comprises a second pixel defined layer over the first pixel defined layer, wherein at least a portion of the peripheral part of the first electrode is between the first pixel defined layer and the second pixel defined layer.

4. The display apparatus of claim 1 , further comprises a planarization layer covering the TFT and including a material different from that of the first pixel defined layer.

5. The display apparatus of claim 4 , a surface of the planarization layer contacts the part of the first electrode corresponding to the opening.

6. The display apparatus of claim 1 , further comprises a resin layer between the peripheral part of the first electrode and the second electrode.

7. The display apparatus of claim 1 , further comprises:

a color filter corresponding to each sub-pixel area; and

a black matrix between a neighboring color filters.

8. The display apparatus of claim 7 , further comprises a partition wall, wherein the partition wall includes a pigment.

9. The display apparatus of claim 8 , wherein the pigment has a color other than colors of adjacent color filters which are arranged at both sides on the basis of the partition wall.

10. The display apparatus of claim 1 , wherein the first electrode is reflective and the second electrode has translucency.

Priority Claims (1)
KR 10-2013-0063075 · May 31, 2013 · national
Continuity (2)
Continuation 14222417 · Mar 21, 2014
Related Publication 20160322438A1 · Nov 3, 2016