Lg Electronics Inc.

Moon Shick Chung

Jeong Pil Choi

Seong Ho Kang

Sang Jin Yun

Nam Kyu Lee

Young Seop Moon

Young Dae Kim

Young Hwan Kim

Yun Kwon Jung

Bong Koo Kang

Hee Chan Yang

Jae Hyuck Lee

Chang Young Kwon

Choon Sub Kim

Jung Sub Shin

Dong Hyuk Park

Young Bok Song

Chang Hwan Koo

Jeung Hwan Lee

A plasma display device is provided. The plasma display device includes a plasma display panel (PDP) having an upper substrate, a lower substrate, a plurality of scan electrodes and a plurality of sustain electrodes formed on the upper substrate, and a plurality of address electrodes formed on the lower substrate; and a driver applying driving signals to the plurality of electrodes, wherein a reset discharge occurs in a part of discharge cells. The plasma display device can contribute to the reduction of dark-area luminance and the improvement of dark-room contrast ratio.

Plasma display device

A driving method of a plasma display panel may be provided such that the plasma display panel may be driven stably under a high temperature environment. The method may include applying a scan pulse to the scan electrode during an address period, applying a first DC voltage to the sustain electrode during the set-down period, applying a second DC voltage to the sustain electrode during the first address period after applying the falling waveform to the scan electrode, and applying a third DC voltage to the sustain electrode during the second address period after applying the second DC voltage to the sustain electrode. A difference between the second DC voltage and a lowest voltage of the scan pulse applied during the first address period is lower than a difference between the third DC voltage and a lowest voltage of the scan pulse applied during the second address period.

Method and apparatus for driving plasma display panel

The present invention relates to a plasma display apparatus and driving method of the same. Since wall charges are remained without performing an additional erasing discharge after the sustain period is terminated and before the initiation of the reset period, the set up discharge can be generated with a small voltage during the reset period to obtain the margin of the driving voltage. In particular, since the highest voltage of the reset period during other subfields is lower than the highest voltage of the reset period of a subfield implementing a low gray scale, with inducing the half discharge before the set up discharge in other subfields, the set up discharge can be generated with a low voltage to improve the contrast due to the luminous output reduction.

Plasma display apparatus having overlapping voltages applied to sustain electrodes and driving method of the same

The present invention relates to a plasma display panel, and more particularly, to a method of driving a plasma display panel. According to an embodiment of the present invention, a method of driving a plasma display panel in which one frame comprises a plurality of sub-fields and which represent a gray level by making the sub-fields emitting light according to brightness weights allocated to the sub-fields, includes a step of implementing a specific gray level using a previous or next luminous pattern of the specific gray level in representing the specific gray level where none of the sub-fields of a one-step lower gray level are luminous. The method of driving a plasma display panel according to the present invention enables to prevent electric discharge failure and to stably display images on the PDP of high-density Xe.

Method of driving a plasma display panel

A plasma display panel apparatus and a method of driving the same are disclosed. Right after power is supplied to a panel, driving waveforms are applied such that an address discharge and a sustain discharge cannot occur during at least one or more sub-fields. Accordingly, time for a source capacitor of an energy recovery unit provided in a scan driver and a sustain driver to be charged with a voltage can be secured and a preliminary time for an element of the driving circuit and the discharge cell to be activated can be secured, to thereby prevent damage of the element.

Plasma display panel apparatus and method of driving the same

A method and apparatus of driving a plasma display panel for preventing a damage of a driving integrated circuit caused by an abnormal discharge generated from a non-display area is disclosed. In the apparatus, a plurality of drivers drives driving electrodes of an active area and dummy electrodes of a non-display area. A current limiter is positioned between any at least one of the dummy electrodes and the drivers to limit currents flowing in the dummy electrodes.

There is explained a driving method and apparatus for a plasma display panel that can be driven stably under a high temperature environment. A driving method and apparatus of a plasma display panel according to an embodiment of the present invention increases a voltage, which is applied to at least one of the scan electrode and the sustain electrode, in accordance with their scanning order under a high temperature environment.

A method and apparatus are provided for driving a plasma display panel. This may include detecting an average picture level of a picture to be transmitted from an input device to a mapping device and to be displayed on the plasma display panel. This may also include mapping a number and an arrangement of sub-fields with respect to each pixel data based on the detected average picture level and determining a total discharge frequency and a discharge frequency by sub-fields based on the detected average picture level.

Method and apparatus of driving plasma display panel

An erasing method and apparatus for a plasma display panel that is capable of minimizing spurious wall charges left after an erasing discharge. In the erasing method, an erasing signal taking a ramp waveform shape is applied to any one of first and second electrodes for alternately causing a sustain discharge. A voltage of said erasing signal is sustained at a voltage upon erasing discharge after the erasing discharge caused by said erasing signal.

Erasing method and apparatus for plasma display panel

A plasma display panel that is adapted to be driven with a low-level voltage signal. A source electrode is supplied with a voltage and a trigger electrodes is opposed to the source electrode. A first discharge is generated between each source electrode and each trigger electrode to apply a voltage at source electrode to a panel electrode.

Low voltage driving apparatus and method for plasma display panel

Circuit and method for driving a plasma display panel, the method including the steps of (1) applying first scan pulses to a first driving block, which is any one of the driving blocks, in every given driving cycle starting from a first scan electrode line to (n)th scan electrode line in succession, and (2) applying second scan pulses each having a given application time difference from the application time of the first scan pulse to a second driving block adjacent to the first driving block starting from (m)th scan line to a first scan line in a reverse sequence to the first scan pulses, whereby preventing an occurrence of flicker because interfaces between driving blocks are continuous with respect to and providing a PDP having a resolution better than an HDTV because intervals of scan pulse application to adjacent lines are short.

Growing community of inventors

Kumi-shi, South Korea

Moon Shick Chung