# US 10,483,342 B2 · Organic light emitting diode display

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- Number: US 10,483,342 B2
- Document ID: US10483342B2
- Status: Granted
- Kind: B2
- Application number: 16/261,450
- Filed: 2019-01-29
- Published: 2019-05-23
- Granted: 2019-11-19
- Earliest claimed: 2012-08-02
- Assignees: Samsung Display Co., Ltd.
- Applicants: Samsung Display Co., Ltd.
- Inventors: Se-Ho Kim; Jin-Woo Park; Won-Se Lee
- Web page: https://patentgrep.com/patent/US10483342B2

## CPC

- H10K 59/131: Interconnections, e.g. wiring lines or terminals
- H10K 59/1213: {the pixel elements being TFTs}
- H10K 59/1216: {the pixel elements being capacitors}
- H10K 59/123: Connection of the pixel electrodes to the thin film transistors [TFT]
- H10K 59/124: Insulating layers formed between TFT elements and OLED elements
- G09G 3/3225: using an active matrix
- G09G 2300/0809: Several active elements per pixel in active matrix panels
- H10D 86/441: {Interconnections, e.g. scanning lines}
- H10D 86/481: {integrated with passive devices, e.g. auxiliary capacitors}
- H10D 86/60: wherein the TFTs are in active matrices
- H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES
- G09G: ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION (arrangements for transferring data between digital computers and displays G06F3/14; static indicating arrangements comprising an association of a number of separate sources or light control cells G09F9/00; static indicating arrangements comprising integral associations of a number of light sources H01J, H01K, H10H, H05B33/12; scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission, details thereof H04N1/00)
- H10D: INORGANIC ELECTRIC SEMICONDUCTOR DEVICES

## Abstract

An organic light emitting diode display includes a substrate, a scan line on the substrate for transferring a scan signal, a data line crossing the scan line and for transferring a data signal, a driving voltage line crossing the scan line and for transferring a driving voltage, a switching thin film transistor coupled to the scan line and the data line, a driving thin film transistor coupled to a switching drain electrode of the switching thin film transistor, and an organic light emitting diode (OLED) coupled to a driving drain electrode of the driving thin film transistor, wherein a driving semiconductor layer of the driving thin film transistor is bent and in a plane substantially parallel to the substrate.

## Claims

### Claim 1

An organic light emitting diode display comprising:
a substrate;
a scanning line on the substrate;
a data line;
a first thin film transistor coupled to the scanning line and the data line;
a first voltage line;
an organic light emitting diode;
a second thin film transistor utilizing a semiconductor layer, and electrically coupled to the first voltage line, the organic light emitting diode, and the first thin film transistor;
a third thin film transistor electrically coupled to the second thin film transistor;
an insulating layer covering the second thin film transistor; and
a storage capacitor electrically coupled to a gate electrode of the second thin film transistor,
wherein the storage capacitor comprises a first capacitor plate comprising a portion of the gate electrode of the second thin film transistor, a second capacitor plate over the first capacitor plate, and a portion of the insulating layer between the first capacitor plate and the second capacitor plate, and
wherein the semiconductor layer is extended to the third thin film transistor.

### Claim 2 (depends on 1)

The organic light emitting diode display of claim 1, wherein the semiconductor layer is curved under the gate of the second thin film transistor.

### Claim 3 (depends on 2)

The organic light emitting diode display of claim 2, further comprising:
a fourth thin film transistor electrically coupled to the second thin film transistor.

### Claim 4 (depends on 3)

The organic light emitting diode display of claim 3, wherein the semiconductor layer is extended to the fourth thin film transistor and branched from between the second thin film transistor and the third thin film transistor.

### Claim 5 (depends on 4)

The organic light emitting diode display of claim 4, wherein the semiconductor layer is extended to the first thin film transistor.

### Claim 6 (depends on 5)

The organic light emitting diode display of claim 5, wherein the semiconductor layer is branched from between the first thin film transistor and the second thin film transistor.

### Claim 7

An organic light emitting diode display comprising:
a substrate;
a scanning line on the substrate;
a data line;
a first thin film transistor coupled to the scanning line and the data line;
a first voltage line;
an organic light emitting diode;
a second thin film transistor utilizing a semiconductor layer, and electrically coupled to the first voltage line, the organic light emitting diode, and the first thin film transistor;
a second voltage line;
a third thin film transistor electrically coupled to the second thin film transistor, the second voltage line, the organic light emitting diode, and the scanning line;
a fourth thin film transistor electrically coupled to the third thin film transistor, the second thin film transistor, the second voltage line, and the organic light emitting diode; and
a storage capacitor electrically coupled to a gate electrode of the second thin film transistor.

### Claim 8 (depends on 7)

The organic light emitting diode display of claim 7, wherein the semiconductor layer is curved under the gate of the second thin film transistor.

### Claim 9 (depends on 8)

The organic light emitting diode display of claim 8, further comprising:
a fifth thin film transistor electrically coupled to the third thin film transistor, the fourth thin film transistor, and the second voltage line.

### Claim 10 (depends on 9)

The organic light emitting diode display of claim 9, wherein the semiconductor layer is extended to the fourth thin film transistor and branched from between the second thin film transistor and the third thin film transistor.

### Claim 11 (depends on 10)

The organic light emitting diode display of claim 10, wherein the semiconductor layer is extended to the first thin film transistor.

### Claim 12 (depends on 11)

The organic light emitting diode display of claim 11, wherein the semiconductor layer is branched from between the first thin film transistor and the second thin film transistor.

### Claim 13 (depends on 7)

The organic light emitting diode display of claim 7, wherein the storage capacitor comprises a first capacitor plate comprising a portion of the gate electrode of the second thin film transistor, a second capacitor plate over the first capacitor plate, and an insulating layer between the first capacitor plate and the second capacitor plate.

### Claim 14 (depends on 13)

The organic light emitting diode display of claim 13, further comprising:
a fifth thin film transistor electrically coupled to the third thin film transistor, the fourth thin film transistor, and the second voltage line.

### Claim 15 (depends on 14)

The organic light emitting diode display of claim 14, wherein the semiconductor layer is extended to the fourth thin film transistor and branched from between the second thin film transistor and the third thin film transistor.

### Claim 16 (depends on 15)

The organic light emitting diode display of claim 15, wherein the semiconductor layer is extended to the first thin film transistor.

### Claim 17 (depends on 16)

The organic light emitting diode display of claim 16, wherein the semiconductor layer is branched from between the first thin film transistor and the second thin film transistor.

### Claim 18 (depends on 13)

The organic light emitting diode display of claim 13, wherein the semiconductor layer is curved under the gate of the second thin film transistor.

### Claim 19 (depends on 18)

The organic light emitting diode display of claim 18, further comprising:
a fifth thin film transistor electrically coupled to the third thin film transistor, the fourth thin film transistor, and the second voltage line.

### Claim 20 (depends on 19)

The organic light emitting diode display of claim 19, wherein the semiconductor layer is extended to the fourth thin film transistor and branched from between the second thin film transistor and the third thin film transistor.

### Claim 21 (depends on 20)

The organic light emitting diode display of claim 20, wherein the semiconductor layer is extended to the first thin film transistor.

### Claim 22 (depends on 21)

The organic light emitting diode display of claim 21, wherein the semiconductor layer is branched from between the first thin film transistor and the second thin film transistor.

### Claim 23 (depends on 7)

The organic light emitting diode display of claim 7, wherein the second voltage line is configured to transfer an initialization voltage for the second thin film transistor.

### Claim 24 (depends on 7)

The organic light emitting diode display of claim 7, wherein the first voltage line is configured to transfer a driving voltage for the second thin film transistor.

### Claim 25 (depends on 7)

The organic light emitting diode display of claim 7, further comprising:
a pixel electrode electrically coupled to the second thin film transistor and the organic light emitting diode.

### Claim 26 (depends on 25)

The organic light emitting diode display of claim 25, wherein the pixel electrode overlaps the storage capacitor.

### Claim 27 (depends on 26)

The organic light emitting diode display of claim 26, wherein the semiconductor layer is curved under the gate of the second thin film transistor.

### Claim 28 (depends on 27)

The organic light emitting diode display of claim 27, wherein the storage capacitor comprises a first capacitor plate comprising a portion of the gate electrode of the second thin film transistor, a second capacitor plate over the first capacitor plate, and an insulating layer between the first capacitor plate and the second capacitor plate.

### Claim 29 (depends on 28)

The organic light emitting diode display of claim 28, further comprising:
a fifth thin film transistor electrically coupled to the third thin film transistor, the fourth thin film transistor, and the second voltage line.

### Claim 30 (depends on 29)

The organic light emitting diode display of claim 29, wherein the semiconductor layer is extended to the fourth thin film transistor and branched from between the second thin film transistor and the third thin film transistor.

### Claim 31 (depends on 30)

The organic light emitting diode display of claim 30, wherein the semiconductor layer is extended to the first thin film transistor.

### Claim 32 (depends on 31)

The organic light emitting diode display of claim 31, wherein the semiconductor layer is branched from between the first thin film transistor and the second thin film transistor.
