# US 9,751,096 B2 · Dispenser and method of fabricating organic light emitting display device using the same

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- Number: US 9,751,096 B2
- Document ID: US9751096B2
- Status: Granted
- Kind: B2
- Application number: 14/992,727
- Filed: 2016-01-11
- Published: 2016-05-05
- Granted: 2017-09-05
- Earliest claimed: 2012-12-13
- Assignees: LG Display Co., Ltd.
- Applicants: LG Display Co., Ltd.
- Inventors: Min-Ju Kim; Seung-Hyun Lee; Yong-Woo Yoo; Sang-Hyun Bae
- Web page: https://patentgrep.com/patent/US9751096B2

## CPC

- B05B 1/30: designed to control volume of flow, e.g. with adjustable passages {(B05B11/0094 takes precedence)}
- H10K 59/8731: {multilayered coatings having a repetitive structure, e.g. having multiple organic-inorganic bilayers}
- H10K 71/135: {using ink-jet printing}
- B05B: SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES (spray-mixers with nozzles B01F25/72; processes for applying liquids or other fluent materials to surfaces by spraying B05D)
- H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES

## Abstract

A dispenser capable of forming a uniform material layer and a method of fabricating an organic light emitting display device using the same are disclosed. The dispenser includes a syringe including a coating material and provided with a nozzle for ejecting the coating material to a substrate and a syringe cap for controlling a coating amount from the nozzle, a pressing unit providing a pressure for ejecting the coating material, a transporting unit for moving the syringe above, and a cap-driving unit for driving the syringe cap to control the coating amount.

## Claims

### Claim 1

A dispenser comprising:
a syringe comprising a nozzle for ejecting the coating material to a substrate and a syringe cap for controlling a coating amount from the nozzle to which a coating material is injected;
a pressing unit that provides a pressure for ejecting the coating material;
a transporting unit that moves the syringe above the substrate; and
a cap-driving unit that rotates the syringe cap with respect to the nozzle to control the coating amount.

### Claim 2 (depends on 1)

The dispenser according to claim 1, wherein the nozzle of the syringe has a nozzle surface having a plurality of nozzle hole groups, each comprising at least one nozzle hole.

### Claim 3 (depends on 2)

The dispenser according to claim 2, wherein the nozzle surface of the syringe has a first region, in which the plurality of nozzle hole groups are disposed, and a second region adjacent to the first region.

### Claim 4 (depends on 3)

The dispenser according to claim 3, wherein the plurality of nozzle hole groups have at least one of different numbers of the nozzle holes, different cross-sectional areas of the nozzle holes, different shapes of the nozzle holes, and different average cross-sectional areas of the nozzle holes.

### Claim 5 (depends on 4)

The dispenser according to claim 4, wherein the syringe cap has open slits to selectively open one of the plurality of nozzle hole groups.

### Claim 6 (depends on 5)

The dispenser according to claim 5, wherein:
one of the plurality of nozzle hole groups of the nozzle is opened as the selected open slit and the first region overlap each other by rotation of the syringe cap; and
the plurality of nozzle hole groups are closed as the open slit and the second region overlap each other.