Plasma display panel (PDP)
AssigneeSamsung SDI Co., Ltd.
InventorJae-Ik Kwon
Life of this patent
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Abstract
A Plasma Display Panel (PDP) driven by a voltage of a driving waveform causing a stable discharge, by which electrodes are disposed to surround sides of a discharge cell to efficiently utilize discharge space, thereby improving light-emitting efficiency, and a voltage of a falling ramp type pulse waveform is supplied to an electrode to which a reset pulse is supplied during an initial reset stage, thereby improving its ability to control a wall voltage which is accumulated around each of the electrodes and is disposed on sides of the discharge cell.
Claims13
A Plasma Display Panel (PDP), comprising:
- front and rear substrates spaced apart from each other and facing each other in parallel;
- barrier ribs partitioning spaces between the front substrate and the rear substrate into a plurality of discharge cells having front, rear, and sides;
- an X electrode and a Y electrode surrounding the sides of the discharge cell to be parallel to the front and rear of the discharge cell and extending in a direction in parallel to the front and rear of the discharge cell;
- an R electrode arranged between the X electrode and the Y electrode, surrounding the sides of the discharge cell to be parallel to the front and rear of the discharge cell, and extending in a direction in parallel to the front and rear of the discharge cell and perpendicular to an extending direction of the X electrode and the Y electrode;
- and
- a phosphor layer arranged on the rear of the discharge cell;
- wherein the PDP is driven by a waveform voltage that is classified into a reset period adapted to initialize all the discharge cells, an address period adapted to select a discharge cell that generates a sustain discharge, and a sustain discharge period adapted to generate the sustain discharge for the selected discharge cell;
- and
- wherein the PDP is driven by supplying a waveform voltage sequentially having a first falling ramp type pulse, a rising ramp type pulse, and a second falling ramp type pulse to the R electrode, a rising step waveform voltage to the X electrode, and a ground voltage to the Y electrode in the reset period.
A method of driving a Plasma Display Panel (PDP) including an X electrode and a Y electrode spaced apart from each other and extending in parallel and an R electrode crossing the X electrode and the Y electrode and arranged between the X electrode and a Y electrode, discharge cells arranged in the crossed space, and the X, Y, and R electrodes surrounding the discharge-cells, the method comprising:
- defining a plurality of sub-fields in a unit frame according to each of gradation weights in order to display time-division gradation, each sub-field being divided into a reset period, an address period, and a sustain discharge period every sub-field;
- and
- supplying a scan pulse to the R electrode and a display data signal to the Y electrode during the address period.
A method of driving a Plasma Display Panel (PDP) including an X electrode and a Y electrode spaced apart from each other and extending in parallel and an R electrode crossing the X electrode and the Y electrode and arranged between the X electrode and a Y electrode, discharge cells arranged in the crossed space, and the X, Y, and R electrodes surrounding the discharge cells, the method comprising:
- defining a plurality of sub-fields in a unit frame according to each of gradation weights in order to display time-division gradation, each sub-field divided into a reset period, an address period, and a sustain discharge period;
- and
- sequentially supplying a first falling ramp type pulse, a rising ramp type pulse, and a second falling ramp type pulse are to the R electrode during the reset period.
Dependencies are inferred from the claim text.