Lg Electronics Inc.

Seong Ho Kang

Sang Jin Yun

Sang Jin Yoon

Bon Cheol Koo

Jeong Pil Choi

Soo Seok Sim

Won Tae Kim

Jung Gwan Han

Chang Young Kwon

Hee Jae Kim

Jin Young Kim

Eun Cheol Lee

Moon Shick Chung

Jang Hwan Cho

Kyung Ryeol Shim

Eung Kwan Lee

Yoon Chang Choi

Yong Duek Kim

Ki Sang Hong

Gop Sick Kim

Dong Soo Lee

Takuya Watanabe

Bong Koo Kang

Young Joon Ahn

Won Jae Kim

Nam Kyu Lee

Jae Woo Kim

Hyung Jae Kim

Eung Gwan Lee

Byoung Gun Kim

Chang Hwan Koo

This invention relates to a driving apparatus of a plasma display panel that is capable of being operated stable, regardless of temperature. A driving apparatus of a plasma display panel according to the present invention includes a panel having a scanning electrode for receiving a scanning pulse in an address period and an address electrode for receiving a date pulse synchronized with the scanning pulse in the address period; and a pulse width controller for changing the width of the scanning pulse when the panel is driven at a low temperature.

Apparatus and method for driving plasma display panel

Provided are a method and apparatus for driving a PDP for widening a driving margin and improving contrast. The method for driving a PDP includes a first step of forming wall charges in cells with a set-up discharge using a set-up signal in a first sub-field and erasing the wall charges with a set-down discharge using a first set-down signal to initialize the cells, and a second step of erasing the wall charges with a set-down discharge generated using a second set-down signal different from the first set-down signal in a second sub-field, to initialize the cells. The method and apparatus for driving a PDP uniformly initialize sub-fields to widen the driving margin of PDP and remove a set-up discharge in at least one sub-field to improve the contrast of PDP.

Method and apparatus for driving plasma display panel

The present invention relates to a method of driving a plasma display panel and a plasma display apparatus employing the same. In the plasma display apparatus, a plurality of scan electrodes formed in a plasma display panel are divided into first and second groups and then supplied with scan signals. When a scan bias voltage supplied in a first subfield of first and second subfields is higher than that supplied in a second subfield of the first and second subfields, a lowest voltage of a reset signal supplied in the second subfield is higher than that supplied in the first subfield. In accordance with the plasma display apparatus of the present invention, the lowest voltage of the reset signal is controlled according to the scan bias voltage in dividing the plurality of scan electrodes into two or more groups and driving them. Accordingly, an address erroneous discharge due to the loss of wall charges can be reduced, the occurrence of spots can be prevented and therefore the image quality of a display image can be improved.

Method of driving plasma display panel and plasma display apparatus employing the same

The present invention relates to a plasma display apparatus and, more particularly, to a method of driving a plasma display panel. The plasma display apparatus includes a plasma display panel including a plurality of scan electrodes and sustain electrodes formed on an upper substrate, and a plurality of address electrodes formed on a lower substrate, and a driver for supplying driving signals to the plurality of electrodes. The plurality of scan electrodes are divided into first and second groups and then supplied with scan signals, and scan bias voltages supplied to the first and second groups in at least any one period of an address period are different from each other. In at least one of a plurality of subfields constituting one frame, a width of a first sustain signal of a plurality of sustain signals supplied during a sustain period is larger than a width of each of the remaining sustain signals.

Method of driving plasma display panel and plasma display apparatus thereof

The present invention relates to a driving apparatus for supplying a driving signal to a plasma display panel, and a plasma display apparatus employing the same. A reset signal supplied during a reset period of a first subfield of a plurality of subfields includes a first rising period where a voltage rises up to a first voltage, and a first sustain period where the first voltage is sustained. A reset signal supplied during a reset period of a second subfield includes a second rising period where a voltage rises up to a second voltage lower than the first voltage, and a second sustain period where the second voltage is sustained. The second voltage is higher than a sustain voltage. In accordance with the present invention, if it is sought to reset discharge cells of a PDP in a reset period, a signal whose voltage gradually rises up to a voltage higher than the sustain voltage is applied to a scan electrode. Accordingly, wall charges of the scan electrode for addressing can be controlled effectively, the highest voltage of the reset signal can be lowered and, therefore, driving margin can be secured. Further, since the sustain period of the highest voltage is included, stabilized discharge can be generated irrespective of variation of an APL of a display screen.

Apparatus for supplying driving signals to plasma display panel and plasma display panel thereof

A plasma display driving method and apparatus for stabilizing an initialization upon selective erasing in a case of simultaneously performing a selective writing and a selective erasing is disclosed. In the method and apparatus, at least one selective writing sub-field for selecting on-cells using a writing discharge is arranged within a portion of one frame period, and at least one selective erasing sub-field for selecting off-cells from the on-cells using an erase discharge is arranged within the remaining interval of one frame period other than a time period arranged with the selective writing sub-field. A normal sustaining pulse is applied to the selected on-cells to sustain a discharge of the on-cells, and an initialization pulse having at least one of a pulse width and a voltage level set to be larger than the normal sustaining pulse is applied prior to said selective erasing sub-fields.

Method and apparatus for driving plasma display panel using selective writing and erasing

A method and apparatus for expressing a gray level with a decimal value in a plasma display panel that is capable of enhancing a picture quality. In the method and apparatus, a sustaining pulse is applied only to any one electrode of a sustaining electrode pair to thereby express a gray level with a decimal value.

Method and apparatus for expressing gray levels in a plasma display panel

A method of driving a plasma display panel that is adaptive for improving a picture quality. In the method, first and second sustain pulses having a different width during the sustain period are alternately applied to the first and second row electrodes.

Method for driving plasma display panel

The present invention relates to a plasma display apparatus and a method of driving the same. The plasma display apparatus according to the present invention includes a plasma display panel in which data electrodes are formed; and a data voltage controller for applying a data voltage as a floating state or a first state voltage to the data electrodes. The method of driving a plasma display apparatus according to the present invention includes the steps of: (a) applying a first voltage to the data electrodes; and (b) applying a voltage as a ground level or a floating state to the data electrodes.

Plasma display and method for floating address electrodes in an address period

The present invention relates to an apparatus and method for driving a plasma display panel, and more particularly, to a scan drive apparatus and method of a plasma display panel. The present invention includes a data conversion unit converting video data to converted video data suitable for the PDP, a subfield mapping unit mapping a subfield corresponding to the converted video data, a data comparison unit computing a size of a displacement current by comparing video data of a cell bundle including at least one cell situated on a specific scan line to video data of a cell bundle situated in vertical and horizontal directions of the cell bundle according to each scan type of a plurality of scan types, and a scan sequence decision unit deciding a scan sequence according to the scan type having a small displacement current inputted from the data comparison unit.

The present invention relates to a plasma display panel, and more particularly, to a method and an apparatus for driving a plasma display panel. According to one aspect of the present invention, there is provided a method of driving a plasma display panel, including the steps of selecting an operating mode based on the degree in which a data moves, and controlling differently at least one of an arrangement of sub-fields disposed within one frame period and the number of sustain pulses according to the selected operating mode. According to the method and apparatus of driving the plasma display panel of the present invention, it is thus possible to increase the picture quality when displaying data of different media such as a PC data or a TV data, power consumption can be reduced, and it is possible to extend the lifespan of a plasma display panel.

Method and apparatus of driving a plasma display panel

A plasma display apparatus is disclosed. The apparatus includes: a data driver for applying a data voltage to a plurality of address electrodes; and a connection unit connected between the address electrode and the data driver, and having a different resistance from the address electrode.

Plasma display apparatus

The present invention relates to a plasma display panel, and more particularly, to a plasma display apparatus and a method of driving a plasma display panel including address electrodes (X) and scan electrodes (Y). The plasma display apparatus according to the present invention includes a plasma display panel including a plurality of scan electrodes and a plurality of address electrodes formed to cross the scan electrodes; a driving unit for driving the plurality of address electrodes; and a driving pulse controller for controlling the driving unit so that a voltage falling time of a data pulse supplied to one and more address electrode groups among a plurality of address electrode groups including one or more address electrodes in an address period ranges from no less than 50 ns to no more than 300 ns. According to The present invention, electric potential of the data pulse varies slowly by prolonging a voltage falling time of a data pulse compared with a conventional voltage falling time so that the peak value of a displacement current becomes reduced. Accordingly, an EMI (ElectroMagnetic Interference) property is enhanced, thereby ensuring normal operations of a driving apparatus of a plasma display panel.

Plasma display apparatus which has an improved data pulse and method for driving the same

A structure and driving method of a plasma display panel is provided, in which an amount of priming particles within a discharge cell increases to reduce discharge lag of address discharge. The structure of the plasma display panel includes a plurality of sustain electrode pairs successively formed on an upper electrode, a plurality of common electrodes formed one by one between a pair of the sustain electrodes, and a dielectric layer formed on the substrate to deposit the sustain electrodes and the common electrodes. The method for driving the plasma display panel includes the steps of applying a common pulse, which is periodically turned on/off, to the common electrodes, applying a scan pulse to one of a pair of the sustain electrodes, and applying an address pulse to the address electrodes when the scan pulse is applied to the one sustain electrode. Thus, since discharge conditions within the discharge cell can be improved, discharge lag less occurs than the related art plasma display panel.

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Daegu, South Korea

Seong Ho Kang