ORGANIC LIGHT-EMITTING DISPLAY APPARATUS AND METHOD OF MANUFACTURING THE SAME

• US 20150349287A1
• Filed: 12/29/2014
• Published: 12/03/2015
• Est. Priority Date: 05/28/2014
• Status: Active Grant

• Current Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Original Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Inventors: KIM, Hun, KWON, Hyo-Jeong, CHANG, Moon-Won, CHOE, Won-Kyu
• Granted Patent: US 10,910,456 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H01L 27/1248 with a particular composition or shape of the interlayer dielectric specially adapted to the circuit arrangement
• CPC Class Codes: H10K 2102/341 Short-circuit prevention
• CPC Class Codes: H10K 59/123 Connection of the pixel electrodes to the thin film transistors [TFT]
• CPC Class Codes: H10K 59/124 Insulating layers formed between TFT elements and OLED elements

Abstract

An organic light-emitting display apparatus includes a transistor on a substrate. The transistor includes a gate electrode, a first electrode, and a second electrode. The apparatus also includes a protective layer over the first electrode and including a first portion that contacts the second electrode, and an organic light-emitting device having a pixel electrode electrically connected to the second electrode.

Claims

1. An organic light-emitting display apparatus, comprising:

a substrate;

a transistor on the substrate and including a gate electrode, a first electrode, and a second electrode;

a protective layer over the first electrode and including a first portion that contacts the second electrode; and

an organic light-emitting device having a pixel electrode electrically connected to the second electrode.

2. The apparatus as claimed in claim 1, further comprising:

an insulating layer between the gate electrode and the first and second electrodes, wherein a second portion of the protective layer contacts the insulating layer.

3. The apparatus as claimed in claim 2, wherein the protective layer is not disposed in a region where the transistor is not disposed.

4. The apparatus as claimed in claim 1, wherein the protective layer includes an inorganic material.

5. An organic light-emitting display apparatus, comprising:

a substrate;

a transistor on the substrate and including a gate electrode, a first electrode, and a second electrode;

a first insulating layer between the gate electrode and the first and second electrodes;

a first protective layer on the first insulating layer on the gate electrode, a first portion the protective layer contacting the first electrode and a second portion of the protective layer contacting the second electrode;

an organic light-emitting device having a pixel electrode electrically connected to the second electrode;

a second insulating layer between the transistor and the pixel electrode; and

a second protective layer between the second insulating layer and the pixel electrode.

6. The apparatus as claimed in claim 5, wherein the second protective layer is on the first electrode.

7. The apparatus as claimed in claim 5, wherein each of the first and second protective layers includes an inorganic material.

8. A pixel, comprising:

a transistor;

a light emitter separated from the transistor by a space; and

at least one protective layer between the transistor and the light emitter,

wherein the at least one protective layer includes a non-conductive material which contacts an electrode of the light emitter when the electrode of the light emitter moves into the space by a force, and wherein the contact between the at least one protective layer and the electrode of the light emitter blocks an electrode of the transistor from being electrically connected to the electrode of the light emitter.

9. The pixel as claimed in claim 8, wherein the at least one protective layer is over a predetermined number of electrodes of the transistor, and wherein the predetermined number is less than three.

10. The pixel as claimed in claim 8, wherein a portion of the at least one protective layer extends between source and drain electrodes of the transistor.

11. The pixel as claimed in claim 8, wherein the space includes an insulating layer which deforms when the electrode of the light emitter moves into the space.

12. The pixel as claimed in claim 8, wherein the at least one protective layer includes an inorganic material.

13. The pixel as claimed in claim 8, further comprising:

a planarizing layer over the transistor and at least one protective layer.

14. The pixel as claimed in claim 8, wherein the at least one protective layer includes a first protective layer between source and drain electrodes of the transistor, and a second protective layer spaced from the first protective layer over the transistor.

15. The pixel as claimed in claim 14, further comprising:

an insulating layer between the first and second protective layers.

16. The pixel as claimed in claim 14, wherein the second protective layer is between the first protective layer and the electrode of the light emitter.