Lg Electronics Inc.

Dae Jin Myoung

Jun Hak Lee

Jun Yeong Yoo

Jung Hwan Kim

Seong Hak Moon

Byung Soo Song

Dai Hyun Kim

Byoung Kuk Min

Geun Soo Kim

The present invention relates to a plasma display apparatus and driving method thereof, and more particularly, to a plasma display apparatus implementing gray levels and driving method thereof. The plasma display apparatus according to the present invention comprises a plasma display panel in which a plurality of scan electrodes and a plurality of sustain electrodes are formed on a substrate, drivers for driving the plurality of the scan electrodes and the sustain electrodes, and a sustain pulse controller for controlling the drivers to set a total number of sustain pulses applied to the scan electrodes and the sustain electrodes to be at least one or more of a plurality of sub-fields in which a sub-field having an odd number constitutes one frame. The present invention can implement a finer gray level. Accordingly, half-tone noise when implementing a low gray level can be reduced and the picture quality can be improved.

Plasma display apparatus and driving method thereof

The present invention relates to a plasma display apparatus and, more particularly, to a plasma display apparatus in which the ability to represent gray levels can be improved and halftone noise can be reduced by improving a plasma display apparatus and image processing method thereof. According to the present invention, the plasma display apparatus includes a motion detection unit that detects motion information of input image signal data, and a halftoning unit that halftones the image signal data by using at least one or more of a dithering method and an error diffusion method according to the motion information received from the motion detection unit.

Plasma display apparatus and image processing method thereof

A system and method for processing a gray level in a display device performs a random error diffusion operation on the video data using a first random coefficient value and a random dithering operation on the error-diffused video data using a second random coefficient value.

Method for processing a gray level in a plasma display panel and apparatus using the same

Discloses herein is a method and apparatus for processing video data of a display device in which dithering noise generating when a motion picture is displayed can be minimized. According to the present invention, the method of processing the video data of the display device includes the steps of comparing data of an ith frame (i is a natural number) and data of a (i+1)th frame to determine whether the data of the (i+1)th frame is a motion picture or a still image, and employing a different dithering method depending upon the determination result of the motion picture or the still image.

Method and apparatus for processing video data of display device

Method for driving a plasma display panel, wherein an address reinforcement period is added between an address period and a sustain period, and a scan voltage Vw of positive polarity and a third DC voltage Zdcare applied, for inducing floating charges in discharge cells, whereby preventing erratic discharge caused by the floating charges at a high temperature.

Method for driving plasma display panel

In a low voltage operation method of a PDP (plasma display panel) and an apparatus thereof capable of maintaining a picture quality and operation efficiency although a minimum operation voltage is applied to a PDP, the low voltage operation method of the plasma display panel includes operating one frame by dividing it into several sub-fields in order to obtain a gray level of a PDP, dividing the sub-field into a reset period, an address period, a sustain period and supplying a ramp waveform in the reset period, and applying a DC biasing voltage in order to reduce wall electric charge discharged in descending of the ramp waveform.

Low voltage operation method of plasma display panel and apparatus thereof

A plasma display panel driving method that permits a high-speed addressing. In the method, a data pulse is applied to address electrodes in an address interval for selecting discharge cells. An auxiliary data pulse is applied to the address electrodes in such a manner to be positioned at the front and rear portions of the data pulse when the data pulse is applied to the address electrodes. A scanning pulse is sequentially applied to scanning/sustaining electrodes.

Growing community of inventors

Goyang-si, South Korea

Dae Jin Myoung