# US 12,225,793 B2 · Display device having component area

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- Number: US 12,225,793 B2
- Document ID: US12225793B2
- Status: Granted
- Kind: B2
- Application number: 18/310,504
- Filed: 2023-05-01
- Published: 2023-08-24
- Granted: 2025-02-11
- Earliest claimed: 2020-05-14
- Assignees: Samsung Display Co., Ltd.
- Applicants: Samsung Display Co., Ltd.
- Inventors: Hyunji Cha; Youngsoo Yoon; Yunkyeong In
- Web page: https://patentgrep.com/patent/US12225793B2

## CPC

- G09G 3/3233: with pixel circuitry controlling the current through the light-emitting element
- H10K 59/131: Interconnections, e.g. wiring lines or terminals
- G09G 3/3258: with pixel circuitry controlling the voltage across the light-emitting element
- H10D 30/6755: {Oxide semiconductors, e.g. zinc oxide, copper aluminium oxide or cadmium stannate}
- H10D 86/423: {comprising semiconductor materials not belonging to the Group IV, e.g. InGaZnO}
- H10D 86/60: wherein the TFTs are in active matrices
- G09G 2300/0426: Layout of electrodes and connections
- G09G 2300/0452: Details of colour pixel setup, e.g. pixel composed of a red, a blue and two green components
- 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
- 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: a plurality of main display elements in the main display area; a plurality of auxiliary display elements and a transmission area in the component area; a first pixel circuit in the component area and connected to a first auxiliary display element among the auxiliary display elements; a second pixel circuit in the component area and connected to a second auxiliary display element among the auxiliary display elements, the second pixel circuit neighboring the first pixel circuit in a column direction; and a first initialization voltage line in the component area, extending in a row direction, arranged between the first pixel circuit and the second pixel circuit, and connected to the first pixel circuit and the second pixel circuit, wherein the first pixel circuit and the second pixel circuit are symmetric with respect to the first initialization voltage line.

## Claims

### Claim 1

A display device comprising:
a substrate including a first display area having a first resolution and a second display area having a second resolution lower than the first resolution;
a first pixel circuit in the second display area;
a second pixel circuit neighboring the first pixel circuit in a first direction in the second display area;
a third pixel circuit neighboring the second pixel circuit in a second direction in the second display area, the second direction being perpendicular to the first direction;
a fourth pixel circuit neighboring the first pixel circuit in the second direction and neighboring the third pixel circuit in the first direction in the second display area; and
a first voltage line in the second display area, extending in the first direction, arranged between the first pixel circuit and the fourth pixel circuit and arranged between the second pixel circuit and the third pixel circuit,
wherein the first pixel circuit and the fourth pixel circuit are symmetric with respect to the first voltage line, and the second pixel circuit and the third pixel circuit are symmetric with respect to the first voltage line.

### Claim 2 (depends on 1)

The display device of claim 1, wherein an arrangement of components of the first pixel circuit and an arrangement of components of the second pixel circuit are the same with respect to a boundary between the first pixel circuit and the second pixel circuit, and
wherein an arrangement of components of the third pixel circuit and an arrangement of components of the fourth pixel circuit are the same with respect to a boundary between the third pixel circuit and the fourth pixel circuit.

### Claim 3 (depends on 1)

The display device of claim 1, wherein each of the first pixel circuit, the second pixel circuit, the third pixel circuit and the fourth pixel circuit comprises:
a driving transistor; and
a first transistor connected to a gate of the driving transistor and the first voltage line.

### Claim 4 (depends on 1)

The display device of claim 1, further comprising:
a first vertical voltage line extending in the second direction, arranged between the first pixel circuit and the second pixel circuit and arranged between the third pixel circuit and the fourth pixel circuit.

### Claim 5 (depends on 4)

The display device of claim 4, further comprising:
a first voltage supply line in a peripheral area being outside the first display area and connected to the first voltage line.

### Claim 6 (depends on 4)

The display device of claim 4, wherein the first voltage line and the first vertical voltage line are configured to receive a same voltage.

### Claim 7 (depends on 4)

The display device of claim 4, wherein the first vertical voltage line and the first voltage line are connected each other.

### Claim 8 (depends on 4)

The display device of claim 4, wherein the first vertical voltage line and the first voltage line are disposed in different layers each other.

### Claim 9 (depends on 4)

The display device of claim 4, further comprising:
a first voltage supply line in a peripheral area being outside the first display area and connected to the first vertical voltage line.

### Claim 10 (depends on 1)

The display device of claim 1, wherein each of the first pixel circuit, the second pixel circuit, the third pixel circuit and the fourth pixel circuit is connected to a display element in the second display area, and
wherein each of the first pixel circuit, the second pixel circuit, the third pixel circuit and the fourth pixel circuit further comprises:
a second transistor connected to the display element and a second voltage line.

### Claim 11 (depends on 10)

The display device of claim 10, wherein a first initialization voltage applied to the first voltage line is different from a second initialization voltage applied to the second voltage line.

### Claim 12 (depends on 10)

The display device of claim 10, further comprising:
a second voltage supply line in a peripheral area being outside the first display area and connected to the second voltage line.

### Claim 13

A display device comprising:
a substrate including a first display area having a first resolution and a second display area having a second resolution lower than the first resolution;
a first pixel circuit in the first display area;
a second pixel circuit neighboring the first pixel circuit in a first direction in the first display area;
a third pixel circuit in the second display area;
a fourth pixel circuit neighboring the third pixel circuit in the first direction in the second display area;
a first voltage line in the first display area, extending in a second direction perpendicular to the first direction and connected to the first pixel circuit;
a second voltage line in the first display area, extending in the second direction and connected to the second pixel circuit; and
a third voltage line in the second display area, extending in the second direction, arranged between the third pixel circuit and the fourth pixel circuit and connected to the third pixel circuit and the fourth pixel circuit,
wherein the first voltage line, the second voltage line and the third voltage line are configured to receive a same voltage.

### Claim 14 (depends on 13)

The display device of claim 13, wherein the third pixel circuit and the fourth pixel circuit are symmetric with respect to the third voltage line.

### Claim 15 (depends on 13)

The display device of claim 13, further comprising:
a bottom layer in the second display area,
wherein the bottom layer is between the substrate and the third pixel circuit.

### Claim 16 (depends on 15)

The display device of claim 15, wherein the bottom layer is not disposed in a transmission area around the third pixel circuit and the fourth pixel circuit in the second display area.

### Claim 17 (depends on 15)

The display device of claim 15, further comprising an electronic element arranged below the substrate to correspond to the second display area.

### Claim 18 (depends on 13)

The display device of claim 13, wherein each of the third pixel circuit and the fourth pixel circuit comprises:
a first driving transistor; and
a first transistor connected to a gate of the first driving transistor and the third voltage line.

### Claim 19 (depends on 18)

The display device of claim 18, wherein each of the first pixel circuit and the second pixel circuit comprises:
a second driving transistor; and
a second transistor connected to a gate of the second driving transistor,
wherein the second transistor of the first pixel circuit is connected to the first voltage line, and the second transistor of the second pixel circuit is connected to the second voltage line.

### Claim 20 (depends on 13)

The display device of claim 13, further comprising:
a first vertical voltage line in the first display area, extending in the first direction and connected to the first voltage line and the second voltage line; and
a second vertical voltage line in the second display area, extending in the first direction and connected to the third voltage line.