Samsung Sdi Co., Inc.

Seung-Hun Chae

Woo-Joon Chung

Kyoung-Ho Kang

Jin-sung Kim

Tae-Seong Kim

Jin-Sung Kim

Jin-Ho Yang

Woo-Joon Jeong

Hak-Ki Choi

Jin-Boo Son

Min-Sun Yoo

Dong-Young Lee

Hak-ki Choi

Jae-won Kim

Byung Hak Lee

A plasma display device includes a plasma display panel, a chassis base and circuit board assemblies mounted on the chassis base. The plasma display panel includes: a front substrate, a rear substrate, and a plurality of electrodes between the front and rear substrates; and an electrode pattern formed on the rear substrate and separate from the plurality of electrodes. The chassis base is adjacent the rear substrate. The electrode pattern is configured for transmitting power and signals utilized to drive the plurality of electrodes from at least one of the plurality of circuit board assemblies.

Plasma display device

A plasma display panel (PDP) driving method and a PDP gray-representing method for improving representation performance of low gray scales is disclosed. A voltage rising from a low level voltage to a reset voltage of a reset period of a subsequent subfield is applied to a scan electrode, without having a sustain period, after performing an address operation of the subfield with the minimum weight. The discharge cell selected in the address period of the minimum weight is discharged in an initial part of the gradually rising voltage.

Plasma display panel driving method, plasma display panel gray displaying method, and plasma display device

A plasma display device includes a plasma display panel (PDP) and a driving method for driving the PDP. The PDP includes discharge cells that are formed by scan electrodes, sustain electrodes, and address electrodes. The driving method divides a frame of the plasma display panel into a plurality of subfields having respective weights in which gray scales are represented by a combination of the subfields. The plurality of subfields are divided into a first group and a second group. In an address period of a subfield of the first having a lowest weight subfield of the plurality of subfields, the method applies a scan voltage and an address voltage respectively to the scan electrode and the address electrode of a discharge cell to be selected from the discharge cells. The scan voltage is applied to the scan electrode and the scan electrode is floated.

Driving method of plasma display panel and display device thereof

An initialization and driving method for a plasma display panel. When the plasma display panel is turned on, a voltage at a first electrode is increased from a first voltage to a second voltage, and a voltage at a second electrode is reduced from a fourth voltage to the fifth voltage for the purpose of forming wall charges in cells while a third voltage is applied to the second electrode. A voltage is applied to the first electrode and the second electrode to establish a difference between the first electrode and the second electrode to be alternately a sixth voltage and a negative voltage of the sixth voltage, and therefore the cell is discharged.

Plasma display panel initialization and driving method and apparatus

Disclosed are a driving device and a driving method for a plasma display panel (PDP). A panel capacitor is formed by a scan electrode and a sustain electrode. The charges are moved from the panel capacitor to a capacitor by turning on a transistor which is connected between the scan electrode and the capacitor. By this method, the voltage of the panel capacitor is steeply reduced so that a discharge is generated in the panel capacitor. When the voltage of the capacitor increases because of the charges moved from the panel capacitor, the gate-source voltage of the transistor is reduced. As a result, the transistor is turned off so that the scan electrode is floated. Accordingly, the discharge is steeply quenched so that the wall charges are precisely controlled. After the capacitor is discharged, the above-noted operation may be repeated.

Driving device and method of plasma display panel by floating a panel electrode

In a plasma display, image data are mapped on N subfields, and the subfield with the greatest weight is determined from among the mapped subfields. When the subfield with the greatest weight is the Ksubfield (K&#x3e;M), grayscales of the image data are expressed with the mapped data of the (K&#x2212;M+1)subfield to the Ksubfield, and the mapped data from the first subfield to the (K&#x2212;M)subfield may be ignored.

Plasma display and driving method thereof

A driving apparatus of a plasma display panel for applying a rising or falling waveform to a panel capacitor, comprising a transistor for forming a current path between a power source and the panel capacitor while the transistor is turned on, and which is coupled between the power source and one end of the panel capacitor. A first capacitor and a second capacitor are coupled in parallel to each other and in between a drain and a gate of the transistor. A first resistor and a first diode are coupled in parallel to each other between a first end of the first capacitor and the gate, and a second resistor and a second diode are coupled in parallel to each other between a first end of the second capacitor and the gate.

Driving apparatus of plasma display panel

A plasma display panel driver. The driver uses a high side switch of a scan IC to increase a voltage width of an initialization waveform which is applied in the initial operation of the plasma display panel set. Accordingly, the initial screen is stably driven, and a voltage width is increased without additional installation of elements or an increase of a withstanding voltage switches.

Plasma display panel driving device and method

A method for driving a display panel to produce an efficient sustain discharge is provided. In one embodiment, the display panel includes a plurality of scanning electrodes that are driven by a sustain discharge signal. A corresponding plurality of common electrode groups is driven individually by different sustain discharge signals. Sustain discharge is performed by alternately applying high level sustain pulses to each the plurality of scanning electrodes and each the plurality of common electrode groups. Sustain pulses with a high level are applied sequentially to each the plurality of common electrode groups in time intervals between the sustain pulses with the high level applied to the plurality of scanning electrodes. Therefore, it is possible to maintain a duty rate of a sustain discharge signal near 50% while reducing a peak value of currents generated upon sustain discharge driving, thereby achieving stable sustain discharge.

Panel driving method for sustain period and display panel using the same

A method for dividing a frame into a plurality of subfields, and driving them on a plasma display panel having a plurality of first electrodes and second electrodes formed in parallel on a first substrate, and a plurality of third electrodes formed on a second substrate and extending over the first and second electrodes. A first voltage and a second voltage are applied to the first electrode and the second electrode of the discharge cell to be selected from among the discharge cells during an address period of a first subfield with the minimum weight from among the subfields, such that the difference between the first voltage and the second voltage is less than a discharge firing voltage.

Plasma display panel and driving method thereof

A PDP driving method. No rising ramp voltage is applied to a scan electrode during a reset period. The final voltage of a falling ramp voltage is reduced to a voltage by which all the discharge cells can fire the discharge during the reset period. A difference between the voltage applied to the address electrode of the discharge cell to be selected and the voltage applied to the scan electrode is established to be greater than the maximum discharge firing voltage.

Plasma display panel driving method and plasma display device

A plasma display panel driver for applying a Zener diode to a falling ramp driving circuit, and reducing a falling ramp driving initial voltage to a voltage that causes a discharge. The driver comprises a transistor having a first electrode coupled between a first terminal of a panel capacitor and a power source; a capacitor having a first terminal coupled to a control electrode of the transistor; and a first resistor, a diode, and a Zener diode coupled in parallel between a second terminal of the capacitor and the first electrode of the transistor.

Plasma display panel driving device having a zener diode

Disclosed is a reset waveform of a plasma display panel. A rising or falling voltage is applied rapidly enough to cause an intense discharge in a reset interval. The electrodes are then floated to reduce the voltage applied into a discharge space during the discharge to cause a self-quenching of the discharge, thereby precisely controlling wall charges.

Plasma display panel and method for driving the same

A plasma display panel (PDP) and a method for driving the PDP. An ON/OFF pattern of an externally-inputted image signal is checked to sense a sustained discharge occurring in discharge cells respectively corresponding to scan electrodes included in a particular one of multiple scan electrode groups over a predetermined time. A control operation is carried out in response to the sensing of the sustained discharge to allow a discharge to occur in discharge cells respectively corresponding to scan electrodes included in the scan electrode groups other than the particular scan electrode group.

A plasma display panel and a driving method thereof. In the plasma display panel, Y electrodes are divided into a plurality of groups according to a scanning order and a final reset voltage is established to be different for each group. The plasma display panel includes a panel including a plurality of first electrodes and second electrodes, a plurality of selection circuits that are respectively coupled to the plurality of the first electrodes, and a driving circuit coupled to the second terminals of the selection circuits. The driving circuit includes a transistor which allows the voltage at the first electrodes to be reduced in a ramp style in a reset period.

Growing community of inventors

Suwon-si, South Korea

Seung-Hun Chae