Lg Electronics Inc.

Sangjin Yoon

Yunkwon Jung

Seongho Kang

Sooseok Sim

A plasma display apparatus is disclosed. The plasma display apparatus includes a plasma display panel for displaying an image by a frame comprising a plurality of subfields, and a driver for, when a vertical frequency of an image signal inputted is less than a critical frequency, dividing the frame into a first subfield group and a second subfield group each comprising one or more subfields, the number of subfields of the first subfield group being different from the number of subfields of the second subfield group, and when the vertical frequency is more than the critical frequency, constituting the frame by a third subfield group comprising one or more subfields.

Plasma display apparatus and method of driving the same

A plasma display apparatus and a method of driving the same are disclosed. In the plasma display apparatus, a relative time ratio of one of a reset period, an address period or a sustain period of an r-th subfield of each of a p-th frame and a q-th frame is substantially equal to each other at a reference time point of the r-th subfield of each of the p-th frame and the q-th frame. The relative time ratio is the ratio of a duration of a portion of one period of a reset period, an address period or a sustain period in one subfield to a total duration of one period. The duration of the portion ranges from a start time point of one period to the reference time point.

The present invention relates to a plasma display apparatus, and more particularly, to a plasma display apparatus and driving method thereof, in which scan electrodes are scanned according to one of a plurality of scan types and a last sustain pulse of sustain pulses applied to scan electrodes or sustain electrodes is controlled. The plasma display apparatus of the present invention comprises a plasma display panel comprising a plurality of scan electrodes, a plurality of sustain electrodes, and a plurality of data electrodes crossing the plurality of scan electrodes and the sustain electrodes, and a controller for scanning the scan electrodes using one of a plurality of scan types in which the order of scanning the plurality of scan electrodes is different in an address period, applies a data pulse to the data electrodes corresponding to one scan type, and controls a difference between an application time point of a last sustain pulse of sustain pulses, which are applied to the scan electrodes or the sustain electrode in a sustain period subsequent to the address period, and a application time point of a reset pulse, which is applied to the scan electrodes in a reset period of a next sub-field, to be greater than a difference between application time points of the two sustain pulses, in at least one of sub-fields of a frame.

Growing community of inventors

Gyeongsangbuk-do, South Korea

Sangjin Yoon