# US 12,765,156 B2 · Display device

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- Number: US 12,765,156 B2
- Document ID: US12765156B2
- Status: Granted
- Kind: B2
- Application number: 19/244,553
- Filed: 2025-06-20
- Published: 2025-10-09
- Granted: 2026-10-13
- Earliest claimed: 2022-04-01
- Assignees: Samsung Display Co., Ltd.
- Applicants: Samsung Display Co., Ltd.
- Inventors: Dae-Young Lee; Sangwoo Kim; Hyeonsik Kim
- Web page: https://patentgrep.com/patent/US12765156B2

## CPC

- H10K 39/38: Interconnections, e.g. terminals
- G06V 40/1318: {using electro-optical elements or layers, e.g. electroluminescent sensing}
- G09G 3/3233: with pixel circuitry controlling the current through the light-emitting element
- H10K 39/34: integrated with organic light-emitting diodes [OLED]
- H10K 59/1213: {the pixel elements being TFTs}
- H10K 59/131: Interconnections, e.g. wiring lines or terminals
- G09G 2300/0408: Integration of the drivers onto the display substrate
- 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 2310/0202: Addressing of scan or signal lines
- G09G 2330/021: Power management, e.g. power saving
- G09G 2360/14: Detecting light within display terminals, e.g. using a single or a plurality of photosensors
- H10K 59/352: {the areas of the RGB subpixels being different}
- H10K 59/353: {characterised by the geometrical arrangement of the RGB subpixels}
- H10K 59/38: comprising colour filters or colour changing media [CCM]
- H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES
- G06V: IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- 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)

## Abstract

A display device includes a first pixel that includes a first pixel driving circuit and a first light emitting element, a second pixel that includes a second pixel driving circuit and a second light emitting element, a sensor that includes a sensor driving circuit and a light detection element, a first data line that extends in a first direction and is electrically connected to the first pixel, a second data line that extends in the first direction and is electrically connected to the second pixel, and a readout line that extends in the first direction and is electrically connected to the sensor. The readout line is disposed on a different layer from at least one of the first data line and the second data line.

## Claims

### Claim 1

An electronic device, comprising:
a base layer in which a display area and a non-display area adjacent to the display area are defined;
a pixel disposed in the display area of the base layer and including a pixel driving circuit and a light-emitting element electrically connected to the pixel driving circuit;
a sensor disposed in the display area of the base layer and including a sensor driving circuit and a light detection element;
a first data line electrically connected to the pixel; and
a readout line electrically connected to the sensor,
wherein, in an area overlapping the display area, the first data line and the readout line extend in a first direction, and
wherein a distance between the readout line and the base layer is greater than a distance between the first data line and the base layer.

### Claim 2 (depends on 1)

The electronic device of claim 1, further comprising an organic layer disposed between the first data line and the readout line.

### Claim 3 (depends on 2)

The electronic device of claim 2, wherein the first data line is disposed between the organic layer and the base layer, and the organic layer is disposed between the readout line and the base layer.

### Claim 4 (depends on 1)

The electronic device of claim 1, wherein the pixel driving circuit includes:
a first transistor electrically connected between a first driving voltage line receiving a first driving voltage and the light-emitting element;
a second transistor electrically connected between the first data line and a first electrode of the first transistor and configured to receive a write scan signal;
a third transistor electrically connected between a second electrode of the first transistor and a first node;
a fourth transistor electrically connected between a first initialization voltage line to which a first initialization voltage is applied and the first node; and
a fifth transistor electrically connected between a second initialization voltage line to which a second initialization voltage is applied and an anode of the light-emitting element.

### Claim 5 (depends on 4)

The electronic device of claim 4, wherein the sensor driving circuit includes:
a reset transistor that includes a first electrode receiving a reset voltage, a second electrode electrically connected to a first sensing node, and a third electrode receiving a reset control signal;
an amplification transistor that includes a first electrode receiving a sensing driving voltage, a second electrode electrically connected to a second sensing node, and a third electrode electrically connected to the first sensing node; and
an output transistor that includes a first electrode electrically connected to the second sensing node, a second electrode electrically connected to the readout line, and a third electrode receiving an output control signal.

### Claim 6 (depends on 5)

The electronic device of claim 5, wherein the output control signal is identical to the write scan signal.

### Claim 7 (depends on 5)

The electronic device of claim 5, wherein the reset transistor is an N-type transistor.

### Claim 8 (depends on 5)

The electronic device of claim 5, wherein each of the amplification transistor and the output transistor is a P-type transistor.

### Claim 9 (depends on 4)

The electronic device of claim 4, wherein the pixel driving circuit further includes a first emission control transistor electrically connected between the first driving voltage line and the first transistor, and a second emission control transistor electrically connected between the first transistor and the light-emitting element.

### Claim 10 (depends on 9)

The electronic device of claim 9, wherein a gate electrode of the first emission control transistor and a gate electrode of the second emission control transistor are configured to receive a same emission control signal.

### Claim 11 (depends on 1)

The electronic device of claim 1, further comprising a second data line disposed on the base layer and extending in the first direction in an area overlapping the display area,
wherein, in a plan view, the readout line is disposed between the first data line and the second data line.

### Claim 12 (depends on 11)

The electronic device of claim 11, wherein the first data line and the second data line are disposed on a same layer, and the readout line is disposed on a layer different from the first data line and the second data line.

### Claim 13 (depends on 11)

The electronic device of claim 11, wherein the second data line is disposed on a layer different from the first data line, and the first data line is disposed on a layer different from the readout line.

### Claim 14 (depends on 11)

The electronic device of claim 11, wherein, in a plan view, a distance between the first data line and the readout line is less than a distance between the second data line and the readout line.

### Claim 15 (depends on 11)

The electronic device of claim 11, wherein, in a plan view, a distance between the first data line and the readout line is equal to a distance between the second data line and the readout line.

### Claim 16

An electronic device comprising:
a base layer in which a display area and a non-display area adjacent to the display area are defined;
a circuit layer disposed on the base layer and including a pixel driving circuit, a sensor driving circuit, a data line, and a readout line; and
an element layer disposed on the circuit layer and including a light-emitting element electrically connected to the pixel driving circuit and a light detection element electrically connected to the sensor driving circuit,
wherein, in an area overlapping the display area, the data line and the readout line extend in a first direction and are spaced apart from each other in a second direction crossing the first direction, and
wherein a distance between the readout line and the base layer is greater than a distance between the data line and the base layer.

### Claim 17 (depends on 16)

The electronic device of claim 16, wherein the pixel driving circuit includes:
a first transistor electrically connected between a first driving voltage line receiving a first driving voltage and the light-emitting element;
a second transistor electrically connected between the data line and a first electrode of the first transistor and configured to receive a write scan signal;
a third transistor electrically connected between a second electrode of the first transistor and a first node;
a fourth transistor electrically connected between a first initialization voltage line to which a first initialization voltage is applied and the first node; and
a fifth transistor electrically connected between a second initialization voltage line to which a second initialization voltage is applied and an anode of the light-emitting element.

### Claim 18 (depends on 17)

The electronic device of claim 17, wherein the sensor driving circuit includes:
a reset transistor that includes a first electrode receiving a reset voltage, a second electrode electrically connected to a first sensing node, and a third electrode receiving a reset control signal;
an amplification transistor thar includes a first electrode receiving a sensing driving voltage, a second electrode electrically connected to a second sensing node, and a third electrode electrically connected to the first sensing node; and
an output transistor that includes a first electrode electrically connected to the second sensing node, a second electrode electrically connected to the readout line, and a third electrode receiving an output control signal,
wherein the output control signal is identical to the write scan signal.

### Claim 19 (depends on 18)

The electronic device of claim 18, wherein the reset transistor is an N-type transistor, and each of the amplification transistor and the output transistor is a P-type transistor.

### Claim 20 (depends on 17)

The electronic device of claim 17, wherein the pixel driving circuit further includes a first emission control transistor and a second emission control transistor, and gate electrodes thereof are configured to receive a same emission control signal.