# US 11,114,511 B2 · Display device

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- Number: US 11,114,511 B2
- Document ID: US11114511B2
- Status: Granted
- Kind: B2
- Application number: 16/853,853
- Filed: 2020-04-21
- Published: 2021-02-25
- Granted: 2021-09-07
- Earliest claimed: 2019-08-21
- Assignees: Samsung Display Co., Ltd.
- Applicants: Samsung Display Co., Ltd.
- Inventors: Wonjun Choi; Iljoo Kim; Deokjung Kim
- Web page: https://patentgrep.com/patent/US11114511B2

## CPC

- G06F 3/0446: {using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes}
- G06F 3/04164: {Connections between sensors and controllers, e.g. routing lines between electrodes and connection pads}
- G06F 3/044: by capacitive means
- G06F 3/0443: {using a single layer of sensing electrodes}
- G06F 3/0448: {Details of the electrode shape, e.g. for enhancing the detection of touches, for generating specific electric field shapes, for enhancing display quality}
- H10K 50/8426: {Peripheral sealing arrangements, e.g. adhesives, sealants}
- H10K 50/865: {comprising light absorbing layers, e.g. light-blocking layers}
- H10K 50/868: {Arrangements for polarized light emission (H10K50/86 takes precedence)}
- H10K 59/131: Interconnections, e.g. wiring lines or terminals
- H10K 59/38: comprising colour filters or colour changing media [CCM]
- H10K 59/40: OLEDs integrated with touch screens
- H10K 59/8792: {comprising light absorbing layers, e.g. black layers}
- G06F 2203/04111: Cross over in capacitive digitiser, i.e. details of structures for connecting electrodes of the sensing pattern where the connections cross each other, e.g. bridge structures comprising an insulating layer, or vias through substrate
- G06F 2203/04112: Electrode mesh in capacitive digitiser: electrode for touch sensing is formed of a mesh of very fine, normally metallic, interconnected lines that are almost invisible to see. This provides a quite large but transparent electrode surface, without need for ITO or similar transparent conductive material
- H10K 59/65: OLEDs integrated with inorganic image sensors
- H10K 59/8731: {multilayered coatings having a repetitive structure, e.g. having multiple organic-inorganic bilayers}
- H10K 59/88: Dummy elements, i.e. elements having non-functional features
- G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N)
- H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES

## Abstract

A display device includes a display panel comprising two pixels spaced apart from each other and a transmission area between the two pixels. An input sensing section is disposed on the display panel and comprises sensing electrodes and trace lines electrically connected to the sensing electrodes. A metal layer is on the display panel. The metal layer is disposed between the two pixels and surrounds the transmission area. The metal layer comprises a first hole located in the transmission area. The first hole has a first width. An optical functional section is on the metal layer. The optical functional section includes a second hole that overlaps the first hole. The second hole has a second width that is greater than the first width.

## Claims

### Claim 1

A display device comprising:
a display panel comprising two pixels spaced apart from each other and a transmission area between the two pixels;
an input sensing section disposed on the display panel and comprising sensing electrodes and trace lines electrically connected to the sensing electrodes;
a metal layer on the display panel, the metal layer disposed between the two pixels and surrounding the transmission area, the metal layer does not overlap the two pixels the metal layer comprising a first hole located in the transmission area, the first hole having a first width; and
an optical functional section on the metal layer, the optical functional section comprising a second hole that overlaps the first hole, the second hole having a second width that is greater than the first width.

### Claim 2 (depends on 1)

The display device of claim 1, wherein the optical functional section covers only a partial portion of the metal layer.

### Claim 3 (depends on 1)

The display device of claim 1, wherein the optical functional section comprises at least one optical device selected from a polarizer, a retarder, a destructive interference structure, or a structure of a color filter and a black matrix.

### Claim 4 (depends on 1)

The display device of claim 1, wherein the metal layer comprises a material that is the same as a material of the trace lines.

### Claim 5 (depends on 1)

The display device of claim 1, wherein the metal layer comprises at least one compound selected from molybdenum (Mo), magnesium (Mg), silver (Ag), titanium (Ti), copper (Cu), aluminum (Al), and an alloy of these materials.

### Claim 6 (depends on 1)

The display device of claim 1, further comprising at least one line arranged outside the metal layer.

### Claim 7 (depends on 6)

The display device of claim 6, wherein the at least one line comprises a plurality of material portions spaced apart from each other with an opening portion between the plurality of material portions, the material portions arranged along an outer edge of the metal layer.

### Claim 8 (depends on 6)

The display device of claim 6, wherein the at least one line comprises:
a first line comprising a plurality of first material portions spaced apart from each other with at least one first opening portion between the plurality of first material portions, the first material portions arranged along an outer edge of the metal layer; and
a second line arranged along the outer edge of the metal layer and spaced apart from the first line, the second line comprising a plurality of second material portions spaced apart from each other and at least one second opening portion between the plurality of second material portions.

### Claim 9 (depends on 8)

The display device of claim 8, wherein:
the at least one first opening portion overlaps one of the plurality of second material portions in a radial direction away from a center of the transmission area, and
the at least one second opening portion overlaps one of the plurality of first material portions in the radial direction away from the center of the transmission area.

### Claim 10 (depends on 8)

The display device of claim 8, further comprising:
a dummy electrode located between adjacent sensing electrodes,
wherein the at least one first opening portion or the at least one second opening portion is adjacent to the dummy electrode.

### Claim 11 (depends on 1)

The display device of claim 1, wherein the display panel further comprises:
a substrate;
a display layer on the substrate and comprising the two pixels; and
an encapsulation substrate on the display layer.

### Claim 12 (depends on 11)

The display device of claim 11, wherein:
the display layer comprises a hole corresponding to the transmission area; and
an upper surface of the substrate and a lower surface of the encapsulation substrate face each other through the hole of the display layer.

### Claim 13 (depends on 1)

The display device of claim 1, wherein the metal layer comprises a plurality of material portions spaced apart from each other.

### Claim 14 (depends on 1)

The display device of claim 1, further comprising:
a window on the optical functional section; and
a transparent adhesive layer between the optical functional section and the window.

### Claim 15 (depends on 14)

The display device of claim 14, wherein the window comprises a light-shielding unit that overlaps a portion of the metal layer.

### Claim 16

A display device comprising:
a display panel comprising two pixels spaced apart from each other and a first area between the two pixels;
an input sensing section on the display panel and comprising sensing electrodes and trace lines electrically connected to the sensing electrodes; and
a metal layer on the display panel, the metal layer is configured to reflect external light in a direction away from the display panel, the metal layer is disposed between the two pixels and in surrounds the first area, the metal layer comprising a first hole located in the first area.

### Claim 17 (depends on 16)

The display device of claim 16, wherein the metal layer comprises a material that is the same as a material of the trace lines.

### Claim 18 (depends on 16)

The display device of claim 16, wherein the input sensing section comprises:
at least one conductive layer comprising the sensing electrodes or the trace lines; and an insulating layer on the conductive layer,
wherein the metal layer comprises a material that is the same as a material of the at least one conductive layer.

### Claim 19 (depends on 18)

The display device of claim 18, wherein the insulating layer comprises a hole having a width that corresponds to the first area.

### Claim 20 (depends on 18)

The display device of claim 18, wherein the insulating layer covers an edge of the metal layer that defines the first hole.

### Claim 21 (depends on 16)

The display device of claim 16, wherein the metal layer comprises at least one compound selected from molybdenum (Mo), magnesium (Mg), silver (Ag), titanium (Ti), copper (Cu), aluminum (Al), and an alloy of these materials.

### Claim 22 (depends on 16)

The display device of claim 16, wherein the sensing electrodes comprise two sensing electrodes spaced apart from each other with the metal layer between the two sensing electrodes.

### Claim 23 (depends on 22)

The display device of claim 22, further comprising at least one line arranged between an outer edge of the metal layer and the two sensing, electrodes.

### Claim 24 (depends on 23)

The display device of claim 23, wherein the at least one line comprises a first line, the first line comprising a plurality of first material portions spaced apart from each other with at least one first opening portion between the plurality of first material portions.

### Claim 25 (depends on 24)

The display device of claim 24, wherein the at least one line further comprises:
a second line disposed closer to the metal layer than the first line; and
the second line comprises a plurality of second material portions spaced apart from each other with at least cane second opening portion between the plurality of second material portions.

### Claim 26 (depends on 25)

The display device of claim 25, wherein an area of each of the plurality of second material portions is greater than an area of each of the plurality of first material portions.

### Claim 27 (depends on 24)

The display device of claim 24, further comprising:
a dummy electrode located between sensing electrodes adjacent to the metal layer from among the sensing electrodes,
wherein the first opening portion is adjacent to the dummy electrode.

### Claim 28 (depends on 16)

The display device of claim 16, further comprising an optical functional section on the metal layer.

### Claim 29 (depends on 28)

The display device of claim 28, wherein the optical functional section comprises a second hole overlapping the first hole, the second hole is larger than the first hole.

### Claim 30 (depends on 28)

The display device of claim 28, wherein the optical functional section comprises at least one optical device selected from a polarizer, a retarder, a destructive interference structure, or a structure of a color filter and a black matrix.

### Claim 31 (depends on 16)

The display device of claim 16, wherein the display panel further comprises:
a substrate;
a display layer on the substrate and comprising the two pixels; and
an encapsulation member on the display layer.

### Claim 32 (depends on 31)

The display device of claim 31, wherein
the display layer comprises a hole having a width that corresponds to the first area; and
an upper surface of the substrate and a lower surface of the encapsulation member face each other through the hole of the display layer.

### Claim 33 (depends on 32)

The display device of claim 32, wherein at least one of the substrate or the encapsulation member comprises a glass material.

### Claim 34

A display device comprising:
a display layer having a plurality of pixels disposed in a second area of the display device;
a first area disposed between two adjacent pixels in the second area, the first area including a transmission area and a component disposed in the first area;
a third area disposed between the second area and the first area;
a metal layer disposed in the third area, the metal layer having a first hole locate in the transmission area, the first hole having a first width;
the display layer including a second hole located in the transmission area having a second width that is less than the first width; and
an optical functional section disposed on the metal layer, the optical functional section comprising a third hole that overlaps the second hole and first hole, the third hole having a third width that is greater than the first width,
wherein the first hole, second hole and third hole form a fourth hole that prevents a field of view restriction for the component.

### Claim 35

A display device comprising:
a display panel comprising a plurality of pixels arranged in the display area, the plurality of pixels including two adjacent pixels spaced apart from each other with a transmission area disposed between the two adjacent pixels;
an input sensing section disposed on the display panel and comprising sensing electrodes and trace lines electrically connected to the sensing electrodes; and
a metal layer on the display panel, the metal layer disposed between the display area and the transmission area in a plan view, the metal layer comprising a first hole located in the transmission area.

### Claim 36 (depends on 35)

The display device of claim 35, further comprising an optical functional section on the metal layer, wherein:
the first hole having a first width, and
the optical functional section comprises a second hole that overlaps the first hole, and the second hole has a second width that is greater than the first width.
