# US 2014/0198067 A1 · Organic light emitting display integrated with touch screen panel

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- Number: US 2014/0198067 A1
- Document ID: US20140198067A1
- Status: Published application
- Kind: A1
- Application number: 14/152,337
- Filed: 2014-01-10
- Published: 2014-07-17
- Earliest claimed: 2013-01-16
- Assignees: Samsung Display Co., Ltd.
- Applicants: Samsung Display Co., Ltd.
- Inventors: Mu-Kyung JEON
- Web page: https://patentgrep.com/patent/US20140198067A1

## CPC

- H10K 59/40: OLEDs integrated with touch screens
- G06F 3/0412: {Digitisers structurally integrated in a display}
- G06F 3/04164: {Connections between sensors and controllers, e.g. routing lines between electrodes and connection pads}
- G06F 3/04166: {Details of scanning methods, e.g. sampling time, grouping of sub areas or time sharing with display driving (Synchronisation with the driving of the display or the backlighting unit to avoid interferences generated internally G06F3/04184)}
- G06F 3/0446: {using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes}
- H10K 59/131: Interconnections, e.g. wiring lines or terminals
- H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES
- G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N)

## Abstract

An organic light emitting display integrated with a touch screen panel includes a first substrate, the first substrate having pixels and having signal lines coupled to the pixels, and a second substrate, the second substrate being on the first substrate to seal the first substrate, the second substrate having sensing electrodes of the touch screen panel on a surface thereof. The signal lines include first and second signal lines, the first and second signal lines being arranged in a direction that intersects the sensing electrodes, the first and second signal lines receiving different signals, respectively, and functioning as first and second driving electrodes of the touch screen panel.

## Claims

### Claim 1

An organic light emitting display integrated with a touch screen panel, the display comprising:
a first substrate, the first substrate having pixels and having signal lines coupled to the pixels; and
a second substrate, the second substrate being on the first substrate to seal the first substrate, the second substrate having sensing electrodes of the touch screen panel on a surface thereof,
wherein the signal lines include first and second signal lines, the first and second signal lines being arranged in a direction that intersects the sensing electrodes, the first and second signal lines receiving different signals, respectively, and functioning as first and second driving electrodes of the touch screen panel.

### Claim 2 (depends on 1)

The display as claimed in claim 1, wherein the first signal lines are initialization driving control lines coupled to the pixels and the second signal lines are scan lines coupled to the pixels.

### Claim 3 (depends on 2)

The display as claimed in claim 2, wherein:
a plurality of adjacent initialization driving control lines form a group, and
the plurality of initialization driving control lines that form the group operate as first driving electrodes of the touch screen panel.

### Claim 4 (depends on 2)

The display as claimed in claim 2, wherein scan lines for providing previous scan signals or next scan signals of pixels corresponding thereto operate as second driving electrodes of the touch screen panel.

### Claim 5 (depends on 1)

The display as claimed in claim 1, wherein the sensing electrodes are disposed in a display region of the second substrate, corresponding to a region in which the pixels are formed.

### Claim 6 (depends on 5)

The display as claimed in claim 5, wherein sensing lines for coupling the sensing electrodes to a touch driving circuit through a touch pad unit are disposed in a non-display region positioned outside the display region.

### Claim 7 (depends on 6)

The display as claimed in claim 6, wherein the sensing lines are coupled to the touch driving circuit through a driving pad unit disposed in a non-display region of the first substrate.

### Claim 8 (depends on 7)

The display as claimed in claim 7, wherein the touch pad unit is disposed on the second substrate and is coupled to the same touch driving circuit as the driving pad unit disposed on the first substrate.

### Claim 9 (depends on 1)

The display as claimed in claim 1, wherein each of the pixels includes:
an organic light emitting diode (OLED) coupled between a first power supply and a second power supply;
a first transistor coupled between the first power supply and the OLED;
a second transistor coupled between a first electrode of the first transistor and a data line;
a third transistor coupled between a second electrode of the first transistor and a gate electrode of the first transistor;
a fourth transistor coupled between the second electrode of the first transistor and the OLED;
a fifth transistor coupled between the gate electrode of the first transistor and an initialization driving control line, the initialization driving control line being coupled to a third power supply that is an initializing power supply;
a sixth transistor coupled between a second electrode of the fourth transistor and the third power supply, the sixth transistor having a gate electrode thereof coupled to a scan line;
a seventh transistor coupled between the first power supply and the first electrode of the first transistor; and
a storage capacitor coupled between the first power supply and the gate electrode of the first transistor.

### Claim 10 (depends on 9)

The display as claimed in claim 9, wherein the initializing power supply applied to the initialization driving control line has a lower level voltage than that of a data signal applied to each of the pixels.

### Claim 11 (depends on 10)

The display as claimed in claim 10, wherein the initializing power supply is sequentially applied to respective groups of initialization driving control lines that operate as first driving electrodes of the touch screen panel.

### Claim 12 (depends on 11)

The display as claimed in claim 11, wherein a high level voltage is applied to groups of initialization driving control lines except for a group of initialization driving control lines to which the initializing power supply is applied.

### Claim 13 (depends on 9)

The display as claimed in claim 9, wherein a scan signal that is applied to the scan line coupled to the gate electrode of the sixth transistor is sequentially applied to scan lines that operate as second driving electrodes of the touch screen panel.

### Claim 14 (depends on 9)

The display as claimed in claim 9, wherein:
cathode electrodes of the OLEDs are interposed between a plurality of initialization driving control lines and scan lines arranged on the first substrate and the sensing electrodes arranged on the surface of a second substrate, and
apertures are formed in regions of the cathode electrodes that overlap the initialization driving control lines and the scan lines so that the initialization driving control lines and the scan lines are exposed.