# US 12,183,283 B2 · Display device

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- Number: US 12,183,283 B2
- Document ID: US12183283B2
- Status: Granted
- Kind: B2
- Application number: 18/106,950
- Filed: 2023-02-07
- Published: 2023-10-26
- Granted: 2024-12-31
- Earliest claimed: 2022-04-20
- Assignees: Samsung Display Co., Ltd.
- Applicants: Samsung Display Co., Ltd.
- Inventors: Kwang Soo Bae; Gun Hee Kim; Hyoeng-Ki Kim; Dae-Young Lee; Sun Hee Lee; Sanghwan Cho
- Web page: https://patentgrep.com/patent/US12183283B2

## CPC

- 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 59/122: Pixel-defining structures or layers, e.g. banks
- H10K 59/353: {characterised by the geometrical arrangement of the RGB subpixels}
- H10K 65/00: Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element and at least one organic radiation-sensitive element, e.g. organic opto-couplers (organic image sensors integrated with organic light-emitting devices H10K39/34; OLED displays integrated with photosensors H10K59/13)
- G09G 2300/0426: Layout of electrodes and connections
- 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 2300/0852: being a dynamic memory with more than 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 2310/0251: Precharge or discharge of pixel before applying new pixel voltage
- G09G 2310/08: Details of timing specific for flat panels, other than clock recovery
- G09G 2320/0209: Crosstalk reduction, i.e. to reduce direct or indirect influences of signals directed to a certain pixel of the displayed image on other pixels of said image, inclusive of influences affecting pixels in different frames or fields or sub-images which constitute a same image, e.g. left and right images of a stereoscopic display
- G09G 2320/0219: Reducing feedthrough effects in active matrix panels, i.e. voltage changes on the scan electrode influencing the pixel voltage due to capacitive coupling
- G09G 2320/0295: by monitoring each display pixel
- G09G 2330/021: Power management, e.g. power saving
- G09G 2354/00: Aspects of interface with display user
- G09G 2360/14: Detecting light within display terminals, e.g. using a single or a plurality of photosensors
- G09G 2360/142: the light being detected by light detection means within each pixel
- G09G 2360/148: the light being detected by light detection means within each pixel
- H10K 59/12: Active-matrix OLED [AMOLED] displays
- H10K 59/65: OLEDs integrated with inorganic image sensors
- 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

## Abstract

A display device includes: a base layer; a display element layer on the base layer, and including a light emitting element, a light detection element, and a photovoltaic element adjacent to one another; a light shielding layer on the display element layer, and having a plurality of opening parts; and a color filter layer on the display element layer, and covering the plurality of opening parts. The light detection element and the photovoltaic element are located at the same layer as each other, the light detection element is to detect an external input based on incident light from the outside, and the photovoltaic element is to generate electrical energy based on the incident light.

## Claims

### Claim 1

A display device comprising:
a base layer;
a display element layer on the base layer, and comprising a light emitting element, a light detection element, and a photovoltaic element adjacent to one another;
a light shielding layer on the display element layer, and having a plurality of opening parts; and
a color filter layer on the display element layer, and covering the plurality of opening parts,
wherein the light detection element and the photovoltaic element are located at the same layer as each other and spaced from each other,
wherein the light detection element is configured to detect an external input based on incident light from the outside, and
wherein the photovoltaic element is configured to generate electrical energy based on the incident light.

### Claim 2 (depends on 1)

The display device of claim 1, wherein a plurality of light emitting areas are defined in the display element layer, each of the plurality of light emitting areas including a corresponding light emitting element,
wherein a first area, and a second area spaced from the first area, with at least one light emitting area located therebetween, are defined between the plurality of light emitting areas, and
wherein the light detection element is located at the first area, and the photovoltaic element is located at the second area.

### Claim 3 (depends on 2)

The display device of claim 2, wherein the first area is spaced from an adjacent light emitting area from among the plurality of light emitting areas by a first width, and the second area is spaced from an adjacent light emitting area from among the plurality of light emitting areas by a second width, and
wherein the first width and the second width are the same as each other.

### Claim 4 (depends on 3)

The display device of claim 3, wherein the plurality of light emitting areas comprise a first light emitting area for emitting a first color light, a second light emitting area for emitting a second color light, and a third light emitting area for emitting a third color light,
wherein the first light emitting area, the second light emitting area, and the third light emitting area are spaced from each other with any one of the first area or the second area therebetween.

### Claim 5 (depends on 1)

The display device of claim 1, wherein the plurality of opening parts of the light shielding layer comprises:
a first opening part corresponding to the light emitting element;
a second opening part corresponding to the light detection element; and
a third opening part corresponding to the photovoltaic element.

### Claim 6 (depends on 5)

The display device of claim 5, wherein a size of the second opening part is smaller than a size of the third opening part.

### Claim 7 (depends on 5)

The display device of claim 5, wherein a size of the second opening part is smaller than an area of the light detection element in a plan view.

### Claim 8 (depends on 5)

The display device of claim 5, wherein a size of the third opening part is equal to or smaller than an area of the photovoltaic element in a plan view.

### Claim 9 (depends on 1)

The display device of claim 1, wherein the color filter layer comprises:
a first color filter overlapping with the light detection element; and
a second color filter overlapping with the photovoltaic element, and
wherein the first color filter and the second color filter are different from each other.

### Claim 10 (depends on 1)

The display device of claim 1, wherein the light emitting element comprises:
a first electrode;
a second electrode facing the first electrode; and
a light emitting layer between the first electrode and the second electrode, and configured to emit a first color light, a second color light, or a third color light.

### Claim 11 (depends on 10)

The display device of claim 10, wherein the light detection element comprises a light receiving layer configured to convert the incident light into an electrical signal,
wherein the photovoltaic element comprises a photovoltaic cell layer configured to receive the incident light to generate electrical energy, and
wherein the light emitting layer, the light receiving layer, and the photovoltaic cell layer are located at the same layer as each other.

### Claim 12 (depends on 1)

The display device of claim 1, further comprising:
a thin film encapsulation layer on the display element layer; and
an input detection layer on the thin film encapsulation layer,
wherein the input detection layer is directly on the thin film encapsulation layer.

### Claim 13

A display device comprising:
a plurality of light emitting elements in a plurality of light emitting areas, respectively;
a first element at a first area defined between the plurality of light emitting areas, and configured to detect an external input based on incident light incident from the outside; and
a second element at a second area defined between the plurality of light emitting areas, and configured to generate electrical energy based on the incident light,
wherein the plurality of light emitting elements, the first element, and the second element are located at the same layer as each other, and
wherein the first element and the second element are spaced from each other.

### Claim 14 (depends on 13)

The display device of claim 13, wherein a plurality of unit pixel areas are defined on a plane, and
wherein at least one of the light emitting elements, the first element, and the second element are located in each of the unit pixel areas.

### Claim 15 (depends on 14)

The display device of claim 14, wherein the plurality of light emitting areas comprise:
a first light emitting area configured to emit a first color light;
a second light emitting area configured to emit a second color light; and
a third light emitting area configured to emit a third color light, and wherein each of the plurality of unit pixel areas comprises:
any one of the first light emitting area or the second light emitting area;
the third light emitting area; and
the first area and the second area.

### Claim 16 (depends on 13)

The display device of claim 13, wherein a planar shape of the first element and a planar shape of the second element are different from each other.

### Claim 17 (depends on 13)

The display device of claim 13, further comprising:
a base layer;
a circuit layer on the base layer, and comprising:
a pixel driving circuit connected to a light emitting element from among the light emitting elements;
a first sensor driving circuit connected to the first element; and
a second sensor driving circuit connected to the second element; and
a display element layer on the circuit layer, and comprising the light emitting element, the first element, and the second element.

### Claim 18 (depends on 13)

The display device of claim 13, further comprising a light blocking pattern having first opening parts corresponding to the plurality of light emitting areas, a second opening part corresponding to the first area, and a third opening part corresponding to the second area.

### Claim 19 (depends on 18)

The display device of claim 18, wherein a size of the second opening part is smaller than a size of the third opening part.

### Claim 20 (depends on 18)

The display device of claim 18, wherein in a plan view, a size of the second opening part is equal to or smaller than an area of the first element, and a size of the third opening part is equal to or larger than an area of the second element.

### Claim 21 (depends on 13)

The display device of claim 13, further comprising:
a plurality of first color filters overlapping with the plurality of light emitting elements, respectively;
a second color filter overlapping with the first element; and
a third color filter overlapping with the second element,
wherein the first color filters comprise a first color color filter, a second color color filter, or a third color color filter,
wherein the second color filter comprises the second color color filter, and
wherein the third color filter comprises the third color color filter.
