# US 10,769,993 B2 · Organic electroluminescence display apparatus

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 10,769,993 B2
- Document ID: US10769993B2
- Status: Granted
- Kind: B2
- Application number: 16/129,430
- Filed: 2018-09-12
- Published: 2019-03-28
- Granted: 2020-09-08
- Earliest claimed: 2017-09-25
- Assignees: Canon Kabushiki Kaisha
- Applicants: Canon Kabushiki Kaisha
- Inventors: Takehiko Soda
- Web page: https://patentgrep.com/patent/US10769993B2

## CPC

- G09G 3/3233: with pixel circuitry controlling the current through the light-emitting element
- G09G 3/2074: {using sub-pixels}
- G09G 2300/0452: Details of colour pixel setup, e.g. pixel composed of a red, a blue and two green components
- G09G 2300/0456: with a reflective area and a transmissive area combined in one pixel, such as in transflectance pixels
- G09G 2300/0852: being a dynamic memory with more than one capacitor
- 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 2320/0242: Compensation of deficiencies in the appearance of colours
- G09G 2320/0626: for control of overall brightness
- 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 apparatus includes a pixel including a first sub-pixel and a second sub-pixel disposed adjacently to each other, and the second sub-pixel is different in emission color from the first sub-pixel. Each of the first sub-pixel and the second sub-pixel includes a first electrode, a second electrode, and a functional layer disposed between the first electrode and the second electrode. The first electrode of the first sub-pixel includes a first pixel electrode and a second pixel electrode. The first electrode of the second sub-pixel includes a first pixel electrode and a second pixel electrode. The second pixel electrode of the first sub-pixel is disposed in each of regions between the first sub-pixel and the second sub-pixel.

## Claims

### Claim 1

A display apparatus that includes a pixel including a first sub-pixel and a second sub-pixel disposed adjacently to each other,
wherein the first sub-pixel emits a first color and the second sub-pixel emits a second color different from the first color,
wherein each of the first sub-pixel and the second sub-pixel includes a first electrode, a second electrode, and a functional layer disposed between the first electrode and the second electrode,
wherein the first electrode of the first sub-pixel includes a first pixel electrode and a second pixel electrode disposed adjacently to each other,
wherein when a voltage is applied to the first pixel electrode and the second pixel electrode, the first pixel electrode and the second pixel electrode emit the first color, and
wherein the second pixel electrode of the first sub-pixel is disposed in each of regions between the first pixel electrode and the second sub-pixel.

### Claim 2 (depends on 1)

The display apparatus according to claim 1, further comprising a control unit configured to control a current to be supplied to each of the first pixel electrode and the second pixel electrode.

### Claim 3 (depends on 2)

The display apparatus according to claim 2, wherein the control unit increases a ratio of the current supplied to the first pixel electrode to the current supplied to the second pixel electrode, as luminance to be displayed is smaller.

### Claim 4 (depends on 2)

The display apparatus according to claim 2, wherein the control unit performs control for performing high dynamic range (HDR) display.

### Claim 5 (depends on 1)

The display apparatus according to claim 1, wherein the second pixel electrode is disposed to surround the first pixel electrode.

### Claim 6 (depends on 1)

The display apparatus according to claim 1,
wherein the first pixel electrode has a polygonal shape in a plane, and
wherein at least one of sides of the first pixel electrode is not adjacent to the second pixel electrode.

### Claim 7 (depends on 1)

The display apparatus according to claim 1, wherein only the first sub-pixel includes the first pixel electrode and the second pixel electrode.

### Claim 8 (depends on 1)

The display apparatus according to claim 1, wherein the functional layer is an organic electroluminescence (EL) layer.

### Claim 9 (depends on 8)

The display apparatus according to claim 8, wherein the organic EL layer is a common layer disposed over a plurality of sub-pixels.

### Claim 10 (depends on 9)

The display apparatus according to claim 9, further comprising a color filter,
wherein the organic EL layer emits white light.

### Claim 11 (depends on 8)

The display apparatus according to claim 8,
wherein the first sub-pixel includes a substrate, the first electrode, the functional layer, and the second electrode in this order, and
wherein the first electrode is a reflective electrode.

### Claim 12 (depends on 8)

The display apparatus according to claim 8,
wherein the first sub-pixel includes a substrate, the first electrode, the functional layer, and the second electrode in this order, and
wherein the first electrode is a transmissive electrode.

### Claim 13 (depends on 11)

The display apparatus according to claim 11, wherein the first electrode is an anode electrode.

### Claim 14 (depends on 11)

The display apparatus according to claim 11, wherein the first electrode is a cathode electrode.

### Claim 15 (depends on 1)

The display apparatus according to claim 1, further comprising a transistor connected to the second pixel electrode, the transistor increasing a current to be supplied to the second pixel electrode based on a magnitude of an input signal.

### Claim 16

An imaging apparatus comprising:
an optical system including a plurality of lenses;
an imaging device configured to receive light having passed through the optical system; and
a display apparatus configured to display a captured image,
wherein the display apparatus is a display apparatus that includes a pixel including a first sub-pixel and a second sub-pixel disposed adjacently to each other,
wherein the first sub-pixel emits a first color and the second sub-pixel emits a second color different from the first color,
wherein each of the first sub-pixel and the second sub-pixel includes a first electrode, a second electrode, and a functional layer disposed between the first electrode and the second electrode,
wherein the first electrode of the first sub-pixel includes a first pixel electrode and a second pixel electrode disposed adjacently to each other,
wherein when a voltage is applied to the first pixel electrode and the second pixel electrode, the first pixel electrode and the second pixel electrode emit the first color, and
wherein the second pixel electrode of the first sub-pixel is disposed in each of regions between the first pixel electrode and the second sub-pixel.
