# US 10,872,945 B2 · Display device including an emission layer

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- Number: US 10,872,945 B2
- Document ID: US10872945B2
- Status: Granted
- Kind: B2
- Application number: 15/805,694
- Filed: 2017-11-07
- Published: 2018-07-26
- Granted: 2020-12-22
- Earliest claimed: 2017-01-26
- Assignees: Samsung Display Co., Ltd.
- Applicants: Samsung Display Co., Ltd.
- Inventors: Jun Won Choi
- Web page: https://patentgrep.com/patent/US10872945B2

## CPC

- G09G 3/3233: with pixel circuitry controlling the current through the light-emitting element
- H10K 59/1213: {the pixel elements being TFTs}
- H10K 59/1216: {the pixel elements being capacitors}
- H10K 59/126: Shielding, e.g. light-blocking means over the TFTs
- H10K 59/131: Interconnections, e.g. wiring lines or terminals
- G09G 2300/0819: used for counteracting undesired variations, e.g. feedback or autozeroing
- G09G 2300/0842: forming a memory circuit, e.g. a dynamic memory with one capacitor
- G09G 2300/0861: with additional control of the display period without amending the charge stored in a pixel memory, e.g. by means of additional select electrodes
- G09G 2320/0214: with crosstalk due to leakage current of pixel switch in active matrix panels
- G09G 2320/0238: Improving the black level
- H10D 86/40: characterised by multiple TFTs
- H10D 86/441: {Interconnections, e.g. scanning lines}
- H10D 86/60: wherein the TFTs are in active matrices
- H10K 59/352: {the areas of the RGB subpixels being different}
- 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)
- H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10D: INORGANIC ELECTRIC SEMICONDUCTOR DEVICES

## Abstract

A display device includes pixels, scan lines, and data lines. A first driving gate electrode is disposed at a first pixel of the display device. A second driving gate electrode is disposed at a second pixel of the display device. A first driving voltage line includes a first extending part that overlaps a first driving gate electrode. A second driving voltage line includes a second extending part that overlaps a second driving gate electrode. A first pixel electrode of the first pixel overlaps the second driving gate electrode. The second extending part includes a first recess portion. A center line of the first recess portion is offset in a direction away from the first pixel electrode with respect to a center line of the second driving gate electrode.

## Claims

### Claim 1

A display device, comprising:
a first pixel;
a first driving gate electrode disposed in the first pixel;
a scan line extending substantially in a first direction; and
a first driving voltage line crossing the scan line,
wherein the first driving voltage line includes:
a right portion extending substantially in a second direction that is perpendicular to the first direction;
a left portion extending substantially in the second direction;
a middle portion disposed between the right portion and the left portion, and extending from the right portion to the left portion in the first direction,
wherein a length of the middle portion in the second direction is less than a length of the left portion in the second direction,
wherein the right portion extends from the middle portion in the first direction, a length of the right portion in the second direction is greater than the length of the middle portion in the second direction,
wherein the middle portion and the right portion overlap the first driving gate electrode to form a capacitor,
wherein a width of the left portion in the first direction is less than a width of the right portion in the first direction, and
wherein an upper portion of the right portion protrudes more upward than an upper portion of the middle portion, and a lower portion of the right portion protrudes more downward than a lower portion of the middle portion in a plan view.

### Claim 2 (depends on 1)

The display device of claim 1, wherein:
first edges of the left portion, the middle portion, and the right portion are connected together and form a first recessed portion,
second edges of the left portion, the middle portion, and the right portion are connected together and form a second recessed portion, and
the first edges connected to each other oppose the second edges connected to each other.

### Claim 3 (depends on 1)

The display device of claim 1, wherein
the display device further includes a second pixel adjacent to the first pixel; and
the right portion is closer to the second pixel than the middle portion is to the second pixel.

### Claim 4 (depends on 3)

The display device of claim 3, further comprising:
a second driving gate electrode disposed in the second pixel; and
a second driving voltage line,
wherein the second driving voltage line includes:
a fourth portion extending substantially in the second direction;
a fifth portion extending from the fourth portion in the first direction, a length of the fifth portion in the second direction being less than a length of the fourth portion in the second direction; and
a sixth portion extending from the fifth portion in the first direction, a length of the sixth portion in the second direction being greater than the length of the fifth portion in the second direction,
wherein the fifth portion and the sixth portion overlap the second driving gate electrode to form a capacitor,
wherein a width of the fourth portion in the first direction is less than a width of the sixth portion in the first direction, and
wherein an upper portion of the sixth portion protrudes more upward than an upper portion of the fifth portion, and a lower portion of the sixth portion protrudes more downward than a lower portion of the fifth portion, in a plan view.

### Claim 5 (depends on 4)

The display device of claim 4, wherein:
third edges of the fourth portion, the fifth portion, and the sixth portion are connected together and form a third recessed portion,
fourth edges of the fourth portion, the fifth portion, and the sixth portion are connected together and form a fourth recessed portion, and
the third edges connected to each other oppose the third edges connected to each other.

### Claim 6 (depends on 5)

The display device of claim 5, wherein:
the sixth portion is closer to the first pixel than the fifth portion is to the first pixel.

### Claim 7 (depends on 6)

The display device of claim 6, wherein:
the right portion and the sixth portion are connected at a same layer to each other.
