# US 10,482,811 B2 · Display apparatus

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- Number: US 10,482,811 B2
- Document ID: US10482811B2
- Status: Granted
- Kind: B2
- Application number: 16/223,054
- Filed: 2018-12-17
- Published: 2019-04-25
- Granted: 2019-11-19
- Earliest claimed: 2015-12-02
- Assignees: Samsung Display Co., Ltd.
- Applicants: Samsung Display Co., Ltd.
- Inventors: Kinyeng Kang; Jonghyun Choi; Sunkwang Kim; Suyeon Sim; Joosun Yoon
- Web page: https://patentgrep.com/patent/US10482811B2

## CPC

- G09G 3/3233: with pixel circuitry controlling the current through the light-emitting element
- G09G 3/3225: using an active matrix
- H10K 59/121: characterised by the geometry or disposition of pixel elements
- H10K 59/131: Interconnections, e.g. wiring lines or terminals
- H10K 59/873: {Encapsulations}
- G09G 2300/0426: Layout of electrodes and connections
- G09G 2300/0439: Pixel structures
- G09G 2300/0819: used for counteracting undesired variations, e.g. feedback or autozeroing
- G09G 2310/0232: Special driving of display border areas
- G09G 2310/0262: The addressing of the pixel, in a display other than an active matrix LCD, involving the control of two or more scan electrodes or two or more data electrodes, e.g. pixel voltage dependent on signals of two data electrodes
- G09G 2340/0407: Resolution change, inclusive of the use of different resolutions for different screen areas
- 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 apparatus includes a substrate, a display unit on the substrate and including a display region including a first display region having a plurality of first pixel circuits configured to drive a plurality of first light-emitting devices, and a second display region having a plurality of second pixel circuits configured to drive a plurality of second light-emitting devices, a plurality of scan lines crossing the display region in a first direction, and a plurality of data lines crossing the display region in a second direction, wherein resolutions of the first and second display regions are different, wherein a total number of the first light-emitting devices driven by one of the first pixel circuits is different from a total number of the second light-emitting devices driven by one of the second pixel circuits, and wherein the display unit and the substrate define at least one through portion in the second display region.

## Claims

### Claim 1

A display apparatus comprising:
a substrate;
a display unit on the substrate, the substrate and the display unit collectively defining at least one through portion; and
a thin film encapsulation layer that encapsulates the display unit, and that comprises an organic layer and an inorganic layer,
wherein the display unit comprises:
a display region;
a non-display region at an edge of, and surrounding, the at least one through portion; and
a dam unit within the non-display region and surrounding the at least one through portion,
wherein the organic layer faces or contacts a lateral surface of the dam unit that faces the display region, and
wherein the inorganic layer covers the dam unit,
wherein the display region comprises first and second display regions having different resolutions.

### Claim 2 (depends on 1)

The display apparatus of claim 1, wherein the inorganic layer contacts a lateral surface of the substrate exposed by the at least one through portion.

### Claim 3 (depends on 1)

The display apparatus of claim 1, further comprising:
a plurality of first pixel circuits;
a plurality of first light-emitting devices configured to be driven by the plurality of first pixel circuits in the first display region,
a plurality of second pixel circuits; and
a plurality of second light-emitting devices configured to be driven by the plurality of second pixel circuits in the second display region,
wherein a number of first light-emitting devices driven by one of the first pixel circuits is less than a number of second light-emitting devices driven by one of the second pixel circuits.

### Claim 4 (depends on 3)

The display apparatus of claim 3, wherein the at least one through portion is in the second display region.

### Claim 5 (depends on 3)

The display apparatus of claim 3, wherein the display unit further comprises:
a plurality of scan lines crossing the display region in a first direction; and
a plurality of data lines crossing the display region in a second direction that is different from the first direction,
wherein the plurality of data lines comprise:
a first data line in the second display region and disconnected at the at least one through portion; and
a second data line continuously extending over the first display region and the second display region, and
wherein the first data line and the second data line are electrically connected to each other by a first connection line.

### Claim 6 (depends on 5)

The display apparatus of claim 5, wherein the first data line is directly connected only to the one of the second pixel circuits, and
wherein the second data line is directly connected only to the one of the first pixel circuits.

### Claim 7 (depends on 6)

The display apparatus of claim 6, wherein the plurality of data lines further comprise a third data line aligned with the first data line, and separated from the first data line by the at least one through portion,
wherein the second data line and the third data line are electrically connected to each other by a second connection line, and
wherein the second data line terminates at a boundary between the first display region and the second display region.

### Claim 8

A display apparatus comprising:
a substrate;
a display unit on the substrate, the substrate and the display unit collectively defining at least one opening; and
a thin film encapsulation layer that encapsulates the display unit, and that comprises an organic layer and an inorganic layer,
wherein the display unit comprises:
a display region comprising first and second display regions;
a non-display region at an edge of, and surrounding, the at least one opening;
a dam unit within the non-display region and surrounding the at least one opening;
a plurality of first pixel circuits;
a plurality of first light-emitting devices configured to be driven by the plurality of first pixel circuits in the first display region,
a plurality of second pixel circuits; and
a plurality of second light-emitting devices configured to be driven by the plurality of second pixel circuits in the second display region,
wherein the organic layer faces or contacts a lateral surface of the dam unit that faces the display region,
wherein the inorganic layer covers the dam unit, and contacts a lateral surface of the substrate exposed by the at least one opening,
wherein each of the plurality of second pixel circuits comprises a thin film transistor, a first connection line and a second connection line, the thin film transistor comprising an active layer, a gate electrode, a source electrode and a drain electrode and
wherein the first connection line and the second connection line are at a same layer as the active layer, the gate electrode, the source electrode, or the drain electrode.

### Claim 9 (depends on 8)

The display apparatus of claim 8, wherein the first display region and the second display region have different resolutions.

### Claim 10 (depends on 8)

The display apparatus of claim 8, wherein a number of first light-emitting devices driven by one of the first pixel circuits is less than a number of second light-emitting devices driven by one of the second pixel circuits.

### Claim 11

A display apparatus comprising:
a substrate;
a display unit on the substrate, the substrate and the display unit collectively defining at least one hole;
a thin film encapsulation layer that encapsulates the display unit, and that comprises an organic layer and an inorganic layer;
a display region comprising first and second display regions;
a non-display region at an edge of, and surrounding, the at least one hole; and
a dam unit within the non-display region and surrounding the at least one hole,
wherein the display unit comprises:
a plurality of first pixel circuits;
a plurality of first light-emitting devices configured to be driven by the plurality of first pixel circuits in the first display region,
a plurality of second pixel circuits; and
a plurality of second light-emitting devices configured to be driven by the plurality of second pixel circuits in the second display region,
wherein the organic layer faces or contacts a lateral surface of the dam unit that faces the display region,
wherein the inorganic layer covers the dam unit, and contacts a lateral surface of the substrate exposed by the at least one hole,
wherein each of the plurality of second pixel circuits comprises a thin film transistor comprising:
an active layer;
a gate electrode;
a source electrode;
a drain electrode; and
a first connection line and a second connection line,
wherein the first connection line and the second connection line are at a same layer as the active layer, the gate electrode, the source electrode, or the drain electrode, and
wherein the at least one hole is in the second display region.

### Claim 12 (depends on 11)

The display apparatus of claim 11, wherein the first display region and the second display region have different resolutions.

### Claim 13 (depends on 11)

The display apparatus of claim 11, wherein a number of first light-emitting devices driven by one of the first pixel circuits is less than a number of second light-emitting devices driven by one of the second pixel circuits.