# US 10,319,299 B2 · Display unit, method of manufacturing the same, and electronic apparatus

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- Number: US 10,319,299 B2
- Document ID: US10319299B2
- Status: Granted
- Kind: B2
- Application number: 16/012,401
- Filed: 2018-06-19
- Published: 2018-10-18
- Granted: 2019-06-11
- Earliest claimed: 2012-11-19
- Assignees: Sony Corporation
- Applicants: Sony Corporation
- Inventors: Seiichiro Jinta
- Web page: https://patentgrep.com/patent/US10319299B2

## CPC

- G09G 3/3233: with pixel circuitry controlling the current through the light-emitting element
- G09G 2300/0426: Layout of electrodes and connections
- G09G 2300/0452: Details of colour pixel setup, e.g. pixel composed of a red, a blue and two green components
- G09G 2300/0465: Improved aperture ratio, e.g. by size reduction of the pixel circuit, e.g. for improving the pixel density or the maximum displayable luminance or brightness
- 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 2300/0866: by means of changes in the pixel supply voltage
- G09G 2310/08: Details of timing specific for flat panels, other than clock recovery
- G09G 2340/04: Changes in size, position or resolution of an image
- 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 method of manufacturing a display unit in which the method includes: forming a transistor on a substrate, in which a first direction to be scanned by an ion implantation apparatus intersects with a second direction to be scanned by an Excimer Laser Anneal apparatus; and forming a display element.

## Claims

### Claim 1

A display device, comprising:
a plurality of pixels; and
a drive section configured to drive the plurality of pixels,
wherein the plurality of pixels comprises a red sub pixel, a green sub pixel, a blue sub pixel, and a white sub pixel,
wherein the red sub pixel, the green sub pixel, the blue sub pixel, and the white sub pixel are connected to a plurality of power lines, and
wherein each of the red sub pixel, the green sub pixel, the blue sub pixel, and the white sub pixel comprises:
a light emitting element;
a writing transistor;
a capacitor; and
a driving transistor,
wherein the writing transistor is electrically connected between a data signal line and a control terminal of the driving transistor,
wherein the capacitor is electrically connected between the control terminal of the driving transistor and the light emitting element,
wherein a first terminal of the driving transistor in the red sub pixel and a first terminal of the driving transistor in the green sub pixel are connected to a first point of the plurality of power lines,
wherein a first terminal of the driving transistor in the blue sub pixel and a first terminal of the driving transistor in the white sub pixel are connected to a second point of the plurality of power lines, and
wherein the second point is different from the first point.

### Claim 2 (depends on 1)

The display device according to claim 1,
wherein the red sub pixel further comprises a first power supply transistor,
wherein the first power supply transistor is shared between the red sub pixel and the green sub pixel,
wherein the white sub pixel further comprises a second power supply transistor, and
wherein the second power supply transistor is shared between the white sub pixel and the blue sub pixel.

### Claim 3 (depends on 2)

The display device according to claim 2,
wherein the first power supply transistor is between the first point and both the driving transistor of the red sub pixel and the driving transistor of the green sub pixel, and
wherein the second power supply transistor is between the second point and both the driving transistor of the blue sub pixel and the driving transistor of the white sub pixel.

### Claim 4 (depends on 2)

The display device according to claim 2, wherein each of the writing transistor, the driving transistor, the first power supply transistor, and the second power supply transistor includes a N channel Metal Oxide Semiconductor (MOS) type transistor.

### Claim 5 (depends on 1)

The display device according to claim 1,
wherein each of the red sub pixel in a first pixel of the plurality of pixels and the green sub pixel in the first pixel is connected to the first point, and
wherein each of the blue sub pixel in a second pixel of the plurality of pixels and the white sub pixel in the second pixel is connected to the second point.

### Claim 6 (depends on 1)

The display device according to claim 1,
wherein the red sub pixel is adjacent to the green sub pixel, and
wherein the blue sub pixel is adjacent to the white sub pixel.

### Claim 7 (depends on 1)

The display device according to claim 1, wherein the light emitting element is configured to emit white light.

### Claim 8 (depends on 1)

The display device according to claim 1, wherein a channel length of the driving transistor is greater than a channel width of the driving transistor.

### Claim 9 (depends on 1)

The display device according to claim 1,
wherein a first electrode of the capacitor is connected to a gate of the driving transistor,
wherein a second electrode of the capacitor is connected to a source of the driving transistor, and
wherein the driving transistor is further configured to supply a compensation current from the plurality of power lines to the second electrode of the capacitor.

### Claim 10 (depends on 1)

The display device according to claim 1,
wherein the driving transistor of the red sub pixel, the driving transistor of the green sub pixel, the driving transistor of the blue sub pixel, and the driving transistor the white sub pixel are arranged side by side in a specific direction, and
wherein the specific direction is a direction along the plurality of power lines.

### Claim 11

A display device, comprising:
a plurality of pixels,
wherein the plurality of pixels comprises a red sub pixel, a green sub pixel, a blue sub pixel, and a white sub pixel,
wherein each of the red sub pixel, the green sub pixel, the blue sub pixel, and the white sub pixel comprises:
a light emitting element;
a writing transistor;
a capacitor; and
a driving transistor,
wherein the writing transistor is configured to supply a data signal from a data signal line to the capacitor,
wherein the driving transistor is configured to supply a driving current from a power line to the light emitting element according to a voltage stored in the capacitor,
wherein a first terminal of the driving transistor in the red sub pixel and a first terminal of the driving transistor in the green sub pixel are connected to a first point of the power line,
wherein a first terminal of the driving transistor in the blue sub pixel and a first terminal of the driving transistor in the white sub pixel are connected to a second point of the power line, and
wherein the second point is different from the first point.

### Claim 12 (depends on 11)

The display device according to claim 11,
wherein the red sub pixel further comprises a first power supply transistor,
wherein the first power supply transistor is shared between the red sub pixel and the green sub pixel,
wherein the white sub pixel further comprises a second power supply transistor, and
wherein the second power supply transistor is shared between the white sub pixel and the blue sub pixel.

### Claim 13 (depends on 12)

The display device according to claim 12,
wherein the first power supply transistor is between the first point and both the driving transistor of the red sub pixel and the driving transistor of the green sub pixel, and
wherein the second power supply transistor is between the second point and both the driving transistor of the blue sub pixel and the driving transistor of the white sub pixel.

### Claim 14 (depends on 12)

The display device according to claim 12, wherein each of the writing transistor, the driving transistor, the first power supply transistor, and the second power supply transistor includes an N channel Metal Oxide Semiconductor (MOS) type transistor.

### Claim 15 (depends on 11)

The display device according to claim 11,
wherein each of the red sub pixel in a first pixel of the plurality of pixels and the green sub pixel in the first pixel is connected to the first point, and
wherein each of the blue sub pixel in a second pixel of the plurality of pixels and the white sub pixel in the second pixel is connected to the second point.

### Claim 16 (depends on 11)

The display device according to claim 11,
wherein the red sub pixel is adjacent to the green sub pixel, and
wherein the blue sub pixel is adjacent to the white sub pixel.

### Claim 17 (depends on 11)

The display device according to claim 11, wherein the light emitting element is configured to emit white light.

### Claim 18 (depends on 11)

The display device according to claim 11, wherein a channel length of the driving transistor is greater than a channel width of the driving transistor.

### Claim 19 (depends on 11)

The display device according to claim 11,
wherein a first electrode of the capacitor is connected to a gate of the driving transistor,
wherein a second electrode of the capacitor is connected to a source of the driving transistor, and
wherein the driving transistor is further configured to supply a compensation current from the power line to the second electrode of the capacitor.

### Claim 20 (depends on 11)

The display device according to claim 11,
wherein the driving transistor of the red sub pixel, the driving transistor of the green sub pixel, the driving transistor of the blue sub pixel, and the driving transistor the white sub pixel are arranged side by side in a specific direction, and
wherein the specific direction is a direction along the power line.
