# US 12,193,260 B2 · Display apparatus including multi-level conductive layer contact area

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- Number: US 12,193,260 B2
- Document ID: US12193260B2
- Status: Granted
- Kind: B2
- Application number: 18/161,842
- Filed: 2023-01-30
- Published: 2023-06-01
- Granted: 2025-01-07
- Earliest claimed: 2019-10-17
- Assignees: Samsung Display Co., Ltd.
- Applicants: Samsung Display Co., Ltd.
- Inventors: Heerim Song; Yujin Lee; Haemin Kim; Cheolgon Lee
- Web page: https://patentgrep.com/patent/US12193260B2

## CPC

- H10K 59/124: Insulating layers formed between TFT elements and OLED elements
- H10K 59/8791: {Arrangements for improving contrast, e.g. preventing reflection of ambient light}
- G02F 1/133305: {Flexible substrates, e.g. plastics, organic film}
- G02F 1/133331: {Cover glasses}
- G02F 1/133512: {Light shielding layers, e.g. black matrix (G02F1/136209 takes precedence)}
- G02F 1/133514: {Colour filters}
- G02F 1/133528: {Polarisers}
- G02F 1/136209: {Light shielding layers, e.g. black matrix, incorporated in the active matrix substrate, e.g. structurally associated with the switching element}
- G06F 1/1652: {the display being flexible, e.g. mimicking a sheet of paper, or rollable}
- G09F 9/301: {flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED}
- G09G 2330/02: Details of power systems and of start or stop of display operation
- G09G 2380/02: Flexible displays
- H10F 39/198: {Contact-type image sensors [CIS]}
- H10K 59/1213: {the pixel elements being TFTs}
- H10K 59/1216: {the pixel elements being capacitors}
- H10K 59/122: Pixel-defining structures or layers, e.g. banks
- H10K 59/123: Connection of the pixel electrodes to the thin film transistors [TFT]
- H10K 59/126: Shielding, e.g. light-blocking means over the TFTs
- H10K 59/131: Interconnections, e.g. wiring lines or terminals
- H10K 59/35: comprising red-green-blue [RGB] subpixels
- H10K 59/352: {the areas of the RGB subpixels being different}
- H10K 59/38: comprising colour filters or colour changing media [CCM]
- H10K 59/40: OLEDs integrated with touch screens
- H10K 59/8731: {multilayered coatings having a repetitive structure, e.g. having multiple organic-inorganic bilayers}
- H10K 59/8792: {comprising light absorbing layers, e.g. black layers}
- H10K 77/111: {Flexible substrates}
- H10K 2102/311: {Flexible OLED}
- H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES
- G02F: OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N)
- G09F: DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- 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)
- H10F: INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION

## Abstract

A display apparatus includes: a substrate having a display area and a peripheral area outside the display area; a first conductive layer on the substrate in the peripheral area and including a first hole; a second conductive layer on the first conductive layer and overlapping the first conductive layer, the second conductive layer including a second hole; a planarization layer extending from the display area to the peripheral area and including at least two organic insulating layers between the first conductive layer and the second conductive layer; and a display element on the planarization layer in the display area, wherein a part of a portion of the second conductive layer except for the second hole is in contact with a part of a portion of the first conductive layer except for the first hole.

## Claims

### Claim 1

A display apparatus comprising a display area and a peripheral area outside the display area, the display apparatus comprising:
a first conductive layer on a substrate in the peripheral area and comprising a first hole;
a second conductive layer on the first conductive layer in the peripheral area;
a first insulating layer on the second conductive layer in the peripheral area;
a display element in the display area and comprising a first electrode, a second electrode facing the first electrode, and an emission layer between the first electrode and the second electrode,
wherein the second electrode comprises a portion in the peripheral area, and
wherein a first contact area of a plurality of contact areas at which the portion of the second electrode contacts the second conductive layer overlaps the first hole of the first conductive layer, and a second contact area of the plurality of contact areas contacts the first conductive layer;
a second insulating layer between the first conductive layer and the second conductive layer; and
a third insulating layer between the second insulating layer and the first electrode in the display area.

### Claim 2 (depends on 1)

The display apparatus of claim 1, wherein the second conductive layer comprises a third hole, the third hole does not overlap the first hole of the first conductive layer.

### Claim 3 (depends on 2)

The display apparatus of claim 2,
wherein the peripheral area comprises a first area, a third area, and a second area between the first area and the third area, the first area being closer to the display area than the third area,
wherein the first conductive layer, the second conductive layer, and the second electrode contact each other at the second area, and
wherein the second contact area is located around the first hole and the third hole at the first area and the third area.

### Claim 4 (depends on 1)

The display apparatus of claim 1, further comprising
a thin-film transistor in the display area and electrically connected to the first electrode of the display element.

### Claim 5 (depends on 4)

The display apparatus of claim 4, the second insulating layer comprises a fourth hole corresponding to the second contact area.

### Claim 6 (depends on 4)

The display apparatus of claim 4, wherein the second insulating layer comprises a first organic insulating layer and a second organic insulating layer on the first organic insulating layer.

### Claim 7 (depends on 6)

The display apparatus of claim 6, wherein the first organic insulating layer comprises an insulating pattern in the peripheral area and overlapping the first hole of the first conductive layer.

### Claim 8

A display apparatus comprising a display area and a peripheral area outside the display area, the display apparatus comprising:
a first conductive layer on a substrate in the peripheral area;
a second conductive layer on the first conductive layer in the peripheral area;
a display element in the display area and comprising a first electrode, a second electrode facing the first electrode, and an emission layer between the first electrode and the second electrode,
wherein the peripheral area comprises a first area, a third area and a second area between the first area and the third area, the first area being closer to the display area than the third area,
wherein the first conductive layer comprises a first hole and the second conductive layer comprises a second hole, in the first area and the third area,
wherein the second hole of the second conductive layer does not overlap the first hole of the first conductive layer in the first area and the third area, in a plan view, and
wherein the second electrode extends to the peripheral area and overlaps the second conductive layer in the second area;
a first insulating layer between the first conductive layer and the second conductive layer; and
a second insulating layer between the first insulating layer and the first electrode in the display area.

### Claim 9 (depends on 8)

The display apparatus of claim 8, wherein the second electrode overlaps the first conductive layer in the second area.

### Claim 10 (depends on 8)

The display apparatus of claim 8, further comprising
a third insulating layer on the second conductive layer.

### Claim 11 (depends on 10)

The display apparatus of claim 10,
wherein the first insulating layer comprises a third hole in the second area, and the second conductive layer contacts the first conductive layer through the third hole in the second area, and
wherein the third insulating layer comprises a fourth hole, and the second electrode contacts the second conductive layer through the fourth hole in the second area.

### Claim 12 (depends on 11)

The display apparatus of claim 11, wherein the first insulating layer comprises a fifth hole in the first area and a sixth hole in the third area, and the second conductive layer contacts the first conductive layer through the fifth hole and the sixth hole in the first area and the third area.

### Claim 13 (depends on 8)

The display apparatus of claim 8, further comprising
a first thin-film transistor in the display area, the first thin-film transistor being between the substrate and the display element, and electrically connected to the first electrode of the display element; and
a second thin-film transistor in the peripheral area, the second thin-film transistor being between the substrate and the first conductive layer, and configured to transfer a signal to the first thin-film transistor.

### Claim 14 (depends on 8)

The display apparatus of claim 8, further comprising an encapsulation layer on the second electrode in the display area and the peripheral area.