# US 7,612,741 B2 · Plasma display device and driving method thereof

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

- Number: US 7,612,741 B2
- Document ID: US7612741B2
- Status: Granted
- Kind: B2
- Application number: 11/272,088
- Filed: 2005-11-14
- Published: 2006-05-18
- Granted: 2009-11-03
- Earliest claimed: 2004-11-15
- Assignees: Samsung SDI Co., Ltd.
- Inventors: Dae-Hwan Kim
- Web page: https://patentgrep.com/patent/US7612741B2

## CPC

- G09G 3/2007: {Display of intermediate tones}
- G09G 3/293: for address discharge
- G09G 3/294: for lighting or sustain discharge
- G09G 3/2948: {by increasing the total sustaining time with respect to other times in the frame}
- G09G 2310/0216: Interleaved control phases for different scan lines in the same sub-field, e.g. initialization, addressing and sustaining in plasma displays that are not simultaneous for all scan lines
- G09G 2310/0218: with collection of electrodes in groups for n-dimensional addressing
- 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

When driving a plasma display panel, in a first subfield of a first frame, turn-on cells are selected among cells of a first group of electrodes by performing an address operation for the first group, and a sustain discharge is performed for selected cells, and turn-on cells are selected among cells of a second group of electrodes by performing an address operation for the second group, and a sustain discharge is performed for selected cells. In a first subfield of a second frame, turn-on cells are selected among cells of the second group by performing an address operation for the second group, and a sustain discharge is performed for selected cells, and turn-on cells are selected among cells of the first group by performing an address operation for the first group, and a sustain discharge is performed for selected cells.

## Claims

### Claim 1

A method for driving a plasma display panel having a plurality of first electrodes and a plurality of second electrodes, and a plurality of third electrodes formed crossing the first electrodes and the second electrodes, wherein a discharge cell is defined by a first electrode, a second electrode, and a third electrode, and a frame is divided into a plurality of subfields,
the plurality of first electrodes being divided into a plurality of groups, a subfield including a plurality of sustain periods and a plurality of address periods corresponding to the respective groups, the method comprising:
in a first subfield of a first frame,
selecting turn-on discharge cells among discharge cells of a first group of first electrodes by performing an address operation for the first group, and performing a sustain discharge for selected discharge cells; and
after performing the sustain discharge for the selected discharge cells, selecting turn-on discharge cells among discharge cells of a second group of first electrodes by performing an address operation for the second group, and performing a sustain discharge for selected discharge cells; and
in a first subfield of a second frame,
selecting turn-on discharge cells among discharge cells of the second group by performing an address operation for the second group, and performing a sustain discharge for selected discharge cells; and
after performing the sustain discharge for the selected discharge cells, selecting turn-on discharge cells among discharge cells of the first group by performing an address operation for the first group, and performing a sustain discharge for selected discharge cells.

### Claim 2 (depends on 1)

The method of claim 1, further comprising,
in a second subfield of the first frame:
selecting turn-on discharge cells among discharge cells of the second group by performing an address operation for the second group, and performing a sustain discharge for selected discharge cells; and
selecting turn-on discharge cells among discharge cells of the first group by performing an address operation for the first group, and performing a sustain discharge for selected discharge cells.

### Claim 3 (depends on 2)

The method of claim 2, further comprising,
in a second subfield of the second frame:
selecting turn-on discharge cells among discharge cells of the first group by performing an address operation for the first group, and performing a sustain discharge for selected discharge cells; and
selecting turn-on discharge cells among discharge cells of the second group by performing an address operation for the second group, and performing a sustain discharge for selected discharge cells.

### Claim 4 (depends on 1)

The method of claim 1, wherein the second frame is consecutive with the first frame.

### Claim 5 (depends on 1)

The method of claim 1, wherein at least one sustain period of the plurality of sustain periods is provided between two adjacent address periods of the plurality of address periods.

### Claim 6 (depends on 1)

The method of claim 1, wherein a weight value allocated to the first subfield of the first frame is the same as a weight value allocated to the first subfield of the second frame.

### Claim 7 (depends on 3)

The method of claim 3, wherein a weight value allocated to the first subfield of the first frame is the same as a weight value allocated to the first subfield of the second frame.

### Claim 8 (depends on 3)

The method of claim 3, wherein the second subfield of the first frame is consecutive with the first subfield of the first frame, and the second subfield of the second frame is consecutive with the first subfield of the second frame.

### Claim 9 (depends on 8)

The method of claim 8, wherein the first subfield of the first frame is an initial subfield of the first frame, and the first subfield of the second frame is an initial subfield of the second frame.

### Claim 10 (depends on 1)

The method of claim 1, wherein the plurality of first electrodes is divided into two groups.

### Claim 11 (depends on 1)

The method of claim 1, wherein, performing the sustain discharge for selected discharge cells comprises sustain discharging discharge cells selected in a current addressing operation as well as discharge cells selected in a previous addressing operation within the same subfield.

### Claim 12

A plasma display device, comprising:
a plasma display panel having a plurality of first electrodes and a plurality of second electrodes, and a plurality of third electrodes formed crossing the first electrodes and the second electrodes, a discharge cell being defined by a first electrode, a second electrode, and a third electrode; and
a driver for applying a driving signal to the first electrodes, the first electrodes being divided into a plurality of groups,
wherein the driver,
in a first subfield of a first frame including a plurality of sustain periods and a plurality of address periods corresponding to the respective groups of first electrodes,
selects turn-on discharge cells among discharge cells of a first group of first electrodes by performing an address operation for the first group, and performs a sustain discharge for selected discharge cells; and
after performing the sustain discharge for the selected discharge cells, selects turn-on discharge cells among discharge cells of a second group of first electrodes by performing an address operation for the second group, and performs a sustain discharge for selected discharge cells; and
and in a first subfield of a second frame including a plurality of sustain periods and a plurality of address periods corresponding to the respective groups of first electrodes,
selects turn-on discharge cells among discharge cells of the second group by performing an address operation for the second group, and performs a sustain discharge for selected discharge cells; and
after performing the sustain discharge for the selected discharge cells, selects turn-on discharge cells among discharge cells of the first group by performing an address operation for the first group, and performs a sustain discharge for selected discharge cells.

### Claim 13 (depends on 12)

The plasma display device of claim 12, wherein in a second subfield of the first frame, the driver:
selects turn-on discharge cells among discharge cells of the second group by performing an address operation for the second group, and performs a sustain discharge for selected discharge cells; and
selects turn-on discharge cells among discharge cells of the first group by performing an address operation for the first group, and performs a sustain discharge for selected discharge cells.

### Claim 14 (depends on 12)

The plasma display device of claim 12, wherein in a second subfield of the second frame, the driver:
selects turn-on discharge cells among discharge cells of the first group by performing an address operation for the first group, and performs a sustain discharge for selected discharge cells; and
selects turn-on discharge cells among discharge cells of the second group by performing an address operation for the second group, and performs a sustain discharge for selected discharge cells.

### Claim 15 (depends on 12)

The plasma display device of claim 12, wherein the second frame is consecutive with the first frame.

### Claim 16 (depends on 12)

The plasma display device of claim 12, wherein at least one sustain period of the plurality of sustain periods is provided between two adjacent address periods of the plurality of address periods.

### Claim 17 (depends on 12)

The plasma display device of claim 12, wherein a weight value allocated to the first subfield of the first frame is the same as a weight value allocated to the first subfield of the second frame.

### Claim 18 (depends on 14)

The plasma display device of claim 14, wherein a weight value allocated to the first subfield of the first frame is the same as a weight value allocated to the first subfield of the second frame.

### Claim 19 (depends on 14)

The plasma display device of claim 14, wherein the second subfield of the first frame is consecutive with the first subfield of the first frame, and the second subfield of the second frame is consecutive with the first subfield of the second frame.

### Claim 20 (depends on 12)

The plasma display device of claim 12, wherein the plurality of first electrodes is divided into two groups.

### Claim 21

A method for driving a plasma display panel having a plurality of first electrodes and a plurality of second electrodes, and a plurality of third electrodes formed crossing the first electrodes and the second electrodes, wherein a discharge cell is defined by a first electrode, a second electrode, and a third electrode, and a frame is divided into a plurality of subfields, the method comprising:
dividing the plurality of first electrodes into a plurality of groups;
in a first subfield of a first frame, sequentially addressing and sustain discharging discharge cells of groups of first electrodes on a group by group basis from a first group to a last group; and
in a first subfield of a second frame, sequentially addressing and sustain discharging discharge cells of the groups of first electrodes on the group by group basis from the last group to the first group.

### Claim 22 (depends on 21)

The method of claim 21, further comprising,
in a second subfield of the first frame, sequentially addressing and sustain discharging discharge cells of the groups of first electrodes on the group by group basis from the last group to the first group; and
in a second subfield of the second frame, sequentially addressing and sustain discharging discharge cells of groups of first electrodes on the group by group basis from the first group to the last group.

### Claim 23 (depends on 21)

The method of claim 21, wherein the second frame is consecutive with the first frame.

### Claim 24 (depends on 22)

The method of claim 22, wherein a weight value allocated to the first subfield of the first frame is the same as a weight value allocated to the first subfield of the second frame.

### Claim 25 (depends on 23)

The method of claim 23, wherein the second subfield of the first frame is consecutive with the first subfield of the first frame, and the second subfield of the second frame is consecutive with the first subfield of the second frame.

### Claim 26 (depends on 25)

The method of claim 25, wherein the first subfield of the first frame is an initial subfield of the first frame, and the first subfield of the second frame is an initial subfield of the second frame.

### Claim 27 (depends on 21)

The method of claim 21, wherein the plurality of first electrodes is divided into two groups.