Lg Electronics Inc.

Yun Kwon Jung

Jin Young Kim

Muk Hee Kim

Yang Ki An

Bong Koo Kang

Ju Won Seo

Young Hwan Kim

Sang Jin Yun

Sung Kwang Cho

Hee Chan Yang

Joong Seo Park

Byung Hyun Kim

Yong Hyun Huh

Jong Sik Lim

Hyun Jae Lim

Sang Jun Lee

Moon Shick Chung

Jang Hwan Cho

Kyung Ryeol Shim

Nam Kyu Lee

Chang Young Kwon

Myung Soo Ham

Gi Bum Lee

Gop Sick Kim

Gun Su Kim

Seung Woo Woo

Moonshick Chung

Kyu Choon Cho

Soong Kyu Lee

Jang Hyun Lim

Sang Yoon Soh

Hyun Il Park

Hyun Oh Lee

Hyun Ii Park

Seok Ho Paust labPDP Group Pohang Univof Kim

There is provided a plasma display device using a driving device for supplying driving signals to a plasma display panel (PDP). In a sustain falling period that at least partially overlaps the rising period of reset signals supplied to scan electrodes formed on the PDP, a voltage supplied to sustain electrodes is gradually reduced and a positive polar voltage is supplied to address electrodes. In driving the PDP, gradually falling signals are supplied to the sustain electrodes in the rising period of the reset signals so that the driving margin of the PDP can be secured. The positive polar voltage is supplied to the address electrodes so that initialization discharge can be stably performed and that the erroneous discharge of the plasma display device can be reduced.

Plasma display device

A plasma display apparatus and a driving method thereof are disclosed. The plasma display apparatus includes a plasma display panel comprising a first electrode and a second electrode, and a driver for applying a plurality of sustain signals to the second electrode while applying two consecutive sustain signals to the first electrode in a sustain period. A method of driving a plasma display apparatus includes applying a first sustain signal to a first electrode in a sustain period, after applying the first sustain signal to the first electrode, applying a plurality of sustain signals to a second electrode, and after applying the plurality of sustain signals to the second electrode, applying a second sustain signal consecutive to the first sustain signal to the first electrode.

Plasma display apparatus and driving method thereof to reduce after-images

A plasma display apparatus comprises a driver for supplying a rising signal of finite slope and a scan signal of negative polarity to a scan electrode using one voltage source. The driver also supplies a falling signal to the scan electrode using the same voltage source. This apparatus may be used to perform a panel driving method that includes applying a rising signal, which rises from a first voltage to a second voltage, to the scan electrode during a reset period and applying a scan signal, of a magnitude at least substantially the same as a difference between the first voltage and the second voltage, to the scan electrode during an address period.

Plasma display apparatus and driving method thereof

The present invention relates to a plasma display device and a method of driving the plasma display device. A gradually rising waveform and then a falling waveform are applied to the scan electrodes. A rising waveform has a slope different from that of a rising waveform applied in a first sub-field in at least one of sub-fields posterior to the first sub-field.

Plasma display device and method of driving the same using variable and multi-slope driving waveforms

There is disclosed a method and apparatus of driving a plasma display panel that is adaptive for improving its contrast and enabling its high speed driving. A driving method of a plasma display panel according to an embodiment of the present invention applies a setup voltage with a first gradient to the scan electrode for the reset period; and applies the setup voltage with a second gradient to the sustain electrode while a voltage on the scan electrode rises.

Method and apparatus for driving plasma display panel

The present invention relates to a plasma display apparatus including a sustain driving apparatus that supplies a sustain signal to a panel. The plasma display apparatus includes a panel in which a front substrate having formed first and second electrodes therein and a rear substrate are coalesced, a sustain driver including a first switch for applying a first voltage to any one of the first and second electrodes and a second switch for applying a second voltage, and a circuit protection unit that controls one of the first and second switches, which has a voltage higher than a predetermined voltage, at its both ends, not to turn on. According to the present invention, when a voltage at both ends of the switch included in the sustain driving apparatus in order to supply the sustain signal is higher than a reference voltage, the switch is controlled not to turn on. It is therefore possible to prevent damage due to the short of the sustain driving apparatus and, therefore, to improve the lifespan and reliability of a product.

Plasma display apparatus

A plasma display apparatus and a method of driving the plasma display apparatus are provided. The plasma display apparatus includes a plasma display panel including a first electrode and a second electrode, a first electrode driver, and a second electrode driver. The first electrode driver supplies a first falling signal of a voltage magnitude, that is more than a voltage magnitude of a scan signal supplied during an address period, to the first electrode before the supply of a rising signal with a gradually rising voltage in at least one subfield of several subfields of a frame. The second electrode driver supplies a second signal having a polarity opposite a polarity of the first falling signal to the second electrode during the supply of the first falling signal.

Plasma display apparatus having separated electrodes and method of driving plasma display

A plasma display apparatus and a method of driving the plasma display apparatus are provided. According to an embodiment, the plasma display apparatus is driven by dividing a sub-field into at least an address period and a sustain period. The apparatus includes a timing controlling unit to vary a length of the sustain period according to a data pattern associated with at least one address electrode.

Driving device and method for plasma display panel

In the method of driving a plasma display panel according to the present invention, the address electrodes are divided into a plurality of electrode groups, and the an application time point of data pulses applied to one or more of the address electrode groups in the address period is different from that of a scan pulse applied to the scan electrode in all the sub-fields of the frame. In addition, the width of the scan pulse applied during an address period of a predetermined number of the sub-fields is greater than the width of scan pulses applied during the address period of the remaining sub-fields.

Plasma display apparatus and method of driving the same

The present invention relates to a plasma display apparatus. The plasma display apparatus according to the present invention comprises a plasma display panel comprising a scan electrode, a set-up driver that applies a rising pulse to the scan electrode during a reset period, a set-down driver that applies a first ramp-down pulse before the rising pulse is applied to the scan electrode and applies a second ramp-down pulse after the rising pulse is applied to the scan electrode, and a scan pulse driver that applies a scan pulse having an amount, which is substantially the same as that of the rising pulse, to the scan electrode during an address period subsequent to the reset period.

The present invention relates to a plasma display apparatus and a driving method thereof in which an erroneous discharge, a misdischarge and an abnormal discharge are prevented, a darkroom contrast is increased, an operation margin is widen, and an influence of a lower substrate wall charge is reduced in a sustain discharge. The plasma display apparatus and its driving method is characterized in that when the plasma display panel has a second temperature higher than a first temperature, a period between the last sustain pulse generated during a sustain period of (n&#x2212;1)sub-field ('n' is a positive integer) and an initialization signal generated during a reset period of nsub-field is more lengthened than when it has the first temperature. The plasma display apparatus and its driving method is characterized in that a pre sustain pulse (PRESUSP) rising from a sustain bias voltage (Vzb) is applied to the second electrode in the sustain period.

A plasma display apparatus is disclosed. A scan driver of the plasma display apparatus supplies a voltage of a scan signal of a negative polarity direction and a voltage of a sustain signal to a scan electrode using one voltage source. Further, a sustain driver of the plasma display apparatus supplies a voltage of a sustain signal and a sustain bias voltage to a sustain electrode using one voltage source.

In a plasma display apparatus and a method of driving the same which is driven by a driving signal having a reset period, an address period and a sustain period, a sustain pulse is applied during the sustain period, the sustain pulse including: an interval in which the sustain pulse rises from a ground voltage to a first voltage; an interval in which the first voltage is substantially constant for predetermined period of time; an interval in which the sustain pulse rises from the first voltage to a second voltage; and an interval in which the second voltage is substantially constant for a predetermined period of time. At least two discharges can be generated per a single sustain pulse by applying a sustain pulse rising and falling in two stages during one sustain period, and discharge efficiency and luminance can be improved by lengthening a light emission time by maintaining the light generated by a discharge for a predetermined time.

Plasma display apparatus and driving method of the same

A plasma display panel comprising an energy recovery circuit and a driving method thereof are provided. The plasma display panel comprises an energy charging part for supplying a predetermined voltage, an energy supply and recovery part for receiving an energy of the predetermined voltage from the energy charging part, and a pulse forming part. The pulse forming part supplies the energy of the predetermined voltage supplied from the energy supply and recovery part to the plasma display panel, maintains a sustain voltage of the plasma display panel, and recovers the energy of the predetermined voltage to the energy supply and recovery part.

Plasma display panel comprising energy recovery circuit and driving method thereof

The present invention provides a plasma display apparatus comprising a second driver supplying a first bias signal with a voltage maintained at a first bias voltage in a reset period and an address period, a first sustain rising signal that gradually rises from the first bias voltage to a second bias voltage, and a second bias signal with a voltage maintained at the second bias voltage, to the second electrode.

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Gumi-si, South Korea

Yun Kwon Jung