# US 7,612,368 B2 · Organic bottom emission electronic device

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- Number: US 7,612,368 B2
- Document ID: US7612368B2
- Status: Granted
- Kind: B2
- Application number: 11/025,122
- Filed: 2004-12-29
- Published: 2006-06-29
- Granted: 2009-11-03
- Earliest claimed: 2004-12-29
- Assignees: E.I. du Pont de Nemours and Company
- Inventors: Gang Yu
- Web page: https://patentgrep.com/patent/US7612368B2

## CPC

- G09G 3/3233: with pixel circuitry controlling the current through the light-emitting element
- H10K 59/121: characterised by the geometry or disposition of pixel elements
- H10K 59/131: Interconnections, e.g. wiring lines or terminals
- G09G 3/3291: in which the data driver supplies a variable data voltage for setting the current through, or the voltage across, the light-emitting elements
- 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 2300/0842: forming a memory circuit, e.g. a dynamic memory with one capacitor
- G09G 2320/0242: Compensation of deficiencies in the appearance of colours
- H10K 59/8792: {comprising light absorbing layers, e.g. black layers}
- 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

An organic electronic device includes a pixel. In one embodiment, the organic electronic device is a bottom emission electronic device. The pixel has an aperture ratio of at least 40%. In another embodiment, the pixel has a first side and a second side opposite the first side. From a plan view, the data line and the first power supply line have lengths that extend along the length of the pixel and lie closer to the first side compared to the second side. In still another embodiment, an organic electronic device includes a substrate, a data line, and a power supply line. The pixel includes a select transistor and a driving transistor. Within the first pixel, each of the data line and the first power supply line lies closer to the substrate compared to the select transistor.

## Claims

### Claim 1

An organic electronic device comprising a pixel having a first long side and a second long side opposite the first long side, wherein the pixel comprises:
a pixel driving circuit comprising a select transistor and a driving transistor; and
a first electronic component coupled to the pixel driving circuit,
wherein:
the organic electronic device is a bottom emission electronic device comprising a transparent anode and a cathode, wherein the select and driving transistors lie nearer the first long side than the second long side of the pixel; length of the driving circuit is at least 50% of the first long side of the pixel; and
the pixel has an aperture ratio of at least 53%.

### Claim 2 (depends on 1)

The organic electronic device of claim 1, wherein the aperture ratio is at least 56%.

### Claim 3 (depends on 1)

The organic electronic device of claim 1, wherein the pixel comprises the long side that extends along a length of the pixel, wherein:
the first electronic component has a radiation-emitting or radiation-responsive area;
from a plan view, all electronic components within the pixel driving circuit lie between the side of the pixel and the radiation-emitting or radiation-responsive area of the first electronic component.

### Claim 4 (depends on 3)

The organic electronic device of claim 3, further comprising a substrate structure comprising a black layer that lies between at least a portion of the pixel driving circuit and the radiation-emitting or radiation-responsive area of the first electronic component.

### Claim 5 (depends on 3)

The organic electronic device of claim 3, further comprising:
a substrate;
a data line connected to the select transistor; and
a power supply line coupled to the driving transistor,
wherein within the pixel, each of the data line and the power supply line lie closer to the substrate compared to the select transistor.

### Claim 6 (depends on 1)

The organic electronic device of claim 1, wherein:
a data line is coupled to the pixel;
a power supply line is coupled to the pixel,
from a plan view, the data line and the power supply line have lengths that extend along the length of the pixel and lie closer to the first long side compared to the second long side.

### Claim 7

A bottom emission organic electronic device comprising a transparent anode, a cathode, and:
a first pixel having a first long side and a second long side opposite the first long side, wherein the first and second long sides extend along a length of the first pixel;
a data line coupled to the first pixel;
a pixel driving circuit; and
a first power supply line coupled to the first pixel,
wherein, from a plan view, the data line and the first power supply line have lengths that extend along the length of the first pixel and lie closer to the first long side compared to the second long side; the pixel driving circuit extends along at least 50% of the first long side of the pixel; and the pixel has an aperture ratio of at least 53%.

### Claim 8 (depends on 7)

The organic electronic device of claim 7, further comprising a substrate, wherein:
the first pixel comprises a select transistor and a driving transistor;
the data line is connected to the select transistor; and
the first power supply line is coupled to the driving transistor,
within the first pixel, each of the data line and the first power supply line lie closer to the substrate compared to the select transistor.

### Claim 9 (depends on 8)

The organic electronic device of claim 8, further comprising a substrate and a select line, wherein within the first pixel:
each of the data line and the first power supply line lies between the substrate and the select line; and
the select line lies between the substrate and a channel region of the select transistor.

### Claim 10 (depends on 8)

The organic electronic device of claim 8, further comprising an electronic component, wherein the electronic component is connected to the driving transistor and a second power supply line.

### Claim 11 (depends on 7)

The organic electronic device of claim 7, wherein the first pixel further comprises:
a first electronic component having a radiation-emitting or radiation-responsive area;
wherein from the plan view:
all electronic components within the pixel driving circuit lie between the first long side of the first pixel and the radiation-emitting or radiation-responsive area of the first electronic component.

### Claim 12 (depends on 11)

The organic electronic device of claim 11, further comprising a second pixel comprising a second electronic component, wherein:
the second electronic component has a radiation-emitting or radiation-responsive area; and
from the plan view, substantially none of the pixel driving circuit of the first pixel lies between the radiation-emitting or radiation-responsive areas of the first and second electronic components.

### Claim 13

A bottom emission organic electronic device comprising:
a substrate;
a data line;
a first power supply line; and
a first pixel, wherein:
the first pixel comprises a pixel driving circuit overlying the substrate, wherein the pixel driving circuit comprises a select transistor and a driving transistor;
the pixel driving circuit extends at least 50% of a first long side of the first pixel;
the data line is connected to the select transistor;
the first power supply line is coupled to the driving transistor; and
within the first pixel, each of the data line and the first power supply line lies closer to the substrate compared to the select transistor; and the pixel has an aperture ratio of at least 53%.

### Claim 14 (depends on 13)

The organic electronic device of claim 13, further comprising a select line, wherein within the first pixel:
each of the data line and the first power supply line lies between the substrate and the select line; and
the select line lies between the substrate and a channel region of the select transistor.

### Claim 15 (depends on 13)

The organic electronic device of claim 13, further comprising a first electronic component, wherein the first electronic component is connected to the driving transistor and a second power supply line.

### Claim 16 (depends on 13)

The organic electronic device of claim 13, wherein the first pixel comprises:
a first long side that extends along a length of the first pixel; and
a first electronic component having a radiation-emitting or radiation-responsive area,
wherein from a plan view:
all electronic components within the pixel driving circuit lie between the first long side of the first pixel and the radiation-emitting or radiation-responsive area of the first electronic component.

### Claim 17 (depends on 16)

The organic electronic device of claim 16, further comprising a second pixel comprising a second electronic component, wherein:
the second electronic component has a radiation-emitting or radiation-responsive area; and
from the plan view, substantially none of the pixel driving circuit of the first pixel lies between the radiation-emitting or radiation-responsive areas of the first and second electronic components.

### Claim 18 (depends on 13)

The organic electronic device of claim 13, wherein, from a plan view, the data line and the power supply line have lengths that extend along a length of the first pixel and lie closer to the first long side compared to a second long side.
