Abstract: A display device includes: a display panel including a first region having a plurality of display cells for displaying an image, and a second region at least partly surrounding the first region, the second region including a plurality of light generation cells for generating light, different from the image, to be detected for touch position sensing; and a pair of cameras located at or near a periphery of the display panel, aligned with respective crossing directions across the display panel, and oriented to detect the light generated by the light generation cells.

Abstract: A method of driving a plasma display is disclosed. In one embodiment, the method includes dividing one screen into a plurality of areas, wherein each area corresponds to at least one of the plurality of discharge cells, and wherein the plurality of areas form a detection pattern. The method also includes displaying the detection pattern in the plasma display and receiving a detection image which has been previously detected or captured, wherein detection image corresponds to at least one of the plurality of areas. The method further includes comparing the received detection image with the detection pattern and determining a position of the detected or captured area based on the comparison.

Abstract: A field emission device includes: a first substrate on which a gate electrode line, a cathode line, and an electron emission source are formed; a second substrate disposed to face the first substrate, and on which an anode and a phosphor layer are formed; and a side frame surrounding an area between the first substrate and the second substrate, and forming a sealed internal space, wherein the first substrate and the second substrate respectively comprise a first protrusion part and a second protrusion part that protrude outside the side frame in the same direction, wherein a rear terminal part for applying a voltage to the gate electrode line and the cathode line is formed on the first protrusion part, wherein an anode terminal for applying a voltage to the anode is formed on the second protrusion part.

Abstract: A waveform generator capable of generating a square wave and a ramp wave using one switching element is provided. A waveform generator includes a first transistor having a drain electrode, a gate electrode, and a source electrode. A first resistor and a first diode are coupled at a common node between a first input terminal and the gate electrode. A second resistor is coupled between the gate electrode and a second input terminal. A first capacitor is coupled between the drain electrode and the common node between the first resistor and the first diode.

Abstract: A field emission device includes: a first substrate on which a gate electrode line, a cathode line, and an electron emission source are formed; a second substrate disposed to face the first substrate, and on which an anode and a phosphor layer are formed; and a side frame surrounding an area between the first substrate and the second substrate, and forming a sealed internal space, wherein the first substrate and the second substrate respectively comprise a first protrusion part and a second protrusion part that protrude outside the side frame in the same direction, wherein a rear terminal part for applying a voltage to the gate electrode line and the cathode line is formed on the first protrusion part, wherein an anode terminal for applying a voltage to the anode is formed on the second protrusion part.

Abstract: A method of driving a plasma display is disclosed. In one embodiment, the method includes dividing one screen into a plurality of areas, wherein each area corresponds to at least one of the plurality of discharge cells, and wherein the plurality of areas form a detection pattern. The method also includes displaying the detection pattern in the plasma display and receiving a detection image which has been previously detected or captured, wherein detection image corresponds to at least one of the plurality of areas. The method further includes comparing the received detection image with the detection pattern and determining a position of the detected or captured area based on the comparison.

Abstract: In a plasma display device, a first driving method or a second driving method is selected according to a video signal, and the plasma display device is driven according to the selected driving method. The first driving method includes selecting first on cells from among a plurality of discharge cells in an address period of a first subfield of a plurality of subfields, and selecting second on cells in an address period of each of a plurality of second subfields from among the plurality of discharge cells other than discharge cells selected as on cells in preceding subfields. The second driving method includes initializing the plurality of discharge cells as off cells in a reset period of each of the plurality of subfields, and selecting on cells from among the plurality of discharge cells in an address period of each of the plurality of subfields following the corresponding reset period.

Abstract: A plasma display panel includes first display electrodes and second display electrodes positioned inside barriers while opposing each other. A front panel has closed-type barriers to increase fluorescent substance application area. A rear panel has stripe-type barriers to lower address voltage between the first display electrodes and address electrodes and improve emission efficiency by means of long-gap discharge. The plasma display panel uses trigger discharge during address discharge and sustain discharge to lower discharge voltage.

Abstract: A plasma display panel with improved driving timings and reduced number of scan lines. The plasma display panel includes: a first substrate and a second substrate; red (R), green (G) and blue (B) discharge cells between the first substrate and the second substrate at crossing regions of sustain electrodes and address electrodes between the first substrate and the second substrate. A G discharge cell form a pixel with an adjacent one B discharge cell or an adjacent R discharge cell in the first direction, and the G discharge cell and an adjacent G discharge cell in the second direction are offset from each other in the first direction by ½ of a discharge cell pitch of the plasma display panel.

Abstract: A method of driving a plasma display panel having a capacitive load formed by a plurality of scan electrodes and a plurality of address electrodes crossing the scan electrodes, using a driver including an address energy recovery circuit (AERC) that applies an address voltage to the address electrodes by an inductor electrically coupled to the address electrodes and resonance of the capacitive load, wherein, during an address period in which one of a scan signal and a non-scan signal is applied to each of the scan electrodes, the method includes applying the scan signal to a current scan electrode, and applying the scan signal to a subsequent scan electrode adjacent the current scan electrode after application of an address signal is complete, the address signal varying from a base state for a period longer than application of the address voltage.

Abstract: A display device includes: a display panel including a first region having a plurality of display cells for displaying an image, and a second region at least partly surrounding the first region, the second region including a plurality of light generation cells for generating light, different from the image, to be detected for touch position sensing; and a pair of cameras located at or near a periphery of the display panel, aligned with respective crossing directions across the display panel, and oriented to detect the light generated by the light generation cells.

Abstract: A plasma display panel and a method thereof is described. A frequency of a sustain pulse varies according to a screen load ratio in each subfield or frame. The frequency of the sustain pulse is determined such that power consumption of the plasma display panel, which is a function of the active power and the reactive power of the sustain pulse, is minimized. When the screen load ratio is increased, the frequency of the sustain pulse is increased since the decrease of the active power is increased and the reactive power is maintained.

Abstract: A plasma display device includes first to fourth transistors and a plurality of first electrodes. A first terminal of a first capacitor is connected to a power supply supplying a voltage. A second terminal of a second capacitor connected to a second terminal of the first capacitor is connected to a ground terminal. A first diode is connected to the first electrodes through a first inductor and a fifth transistor, which forms a voltage rising path. A second diode is connected to the first electrodes through a second inductor and a sixth transistor, which forms a voltage falling path. A third diode is connected to the third transistor and the second diode, which forms a voltage sustaining path during a voltage rising period. A fourth diode is connected to the second transistor and the first diode, which forms a voltage sustaining path of a voltage falling period.

Abstract: A waveform generator capable of generating a square wave and a ramp wave using one switching element is provided. A waveform generator includes a first transistor having a drain electrode, a gate electrode, and a source electrode. A first resistor and a first diode are coupled at a common node between a first input terminal and the gate electrode. A second resistor is coupled between the gate electrode and a second input terminal. A first capacitor is coupled between the drain electrode and the common node between the first resistor and the first diode.

Abstract: A plasma display device includes a plurality of scan lines, each scan line corresponding to a plurality of discharge cells, a controller and a driver. The controller may be adapted to determine, for at least one of the plurality of scan lines, a width of a scan pulse to be applied based on a load ratio of the respective scan line. The driver may be adapted to sequentially apply the respective scan pulse of the determined width to the plurality of scan lines.

Abstract: A plasma display device includes a plurality of scan lines for selecting a plurality of discharge cells and extending in a row direction. The plasma display device sequentially applies a scan pulse to the plurality of scan lines. The plasma display device calculates a data similarity ratio of two adjacent scan lines by using subfield data of each discharge cell disposed on the two adjacent scan lines among the plurality of scan lines, and overlaps the scan pulses applied to the two adjacent scan lines when the data similarity ratio of two adjacent scan lines is greater than a predetermined ratio.

Abstract: In a plasma display device, a single frame is divided into a plurality of subfields each having a luminance weight value, and a plurality of video signals, each corresponding to the plurality of discharge cells, are converted into a plurality of subfield data indicating whether or not light emission is performed in each of the plurality of subfields. The converted subfield data is changed based on relative light emission rates of the discharge cells so that light emission of the discharge cells is in correspondence.

Abstract: A panel driving apparatus including an address power controller for blocking an address power source of at least two capacitors and coupling the panel capacitors during a period between a scan line signal and a next scan line signal, so that the panel capacitors share electric charges, and an address driver for generating display data in response to an address signal by performing a switching operation. Electric charges that are charged in a previous address electrode line and could be discarded to a ground terminal at a next address electrode line are shared between the panel capacitors, thus reducing power consumption and improving power efficiency during an addressing operation.

Abstract: A method for driving a plasma display device (PDP) during subfields of a frame including a first subfield. The PDP includes scan lines corresponding to first and second display regions, address lines crossing the scan lines, and first and second discharge cells respectively defined by the first display regions and the address lines and by the second display regions and the address lines. The method includes: selecting a first non-light emitting cell from among first light emitting cells of the first discharge cells during a first address period of the first subfield; selecting a second non-light emitting cell from among second light emitting cells of the second discharge cells during a second address period of the first subfield; and sustain-discharging the first and second light emitting cells during a first period previous to the first address period and a second period previous to the second address period, respectively.

Abstract: A plasma display device includes first to fourth transistors and a plurality of first electrodes. A first terminal of a first capacitor is connected to a power supply supplying a voltage. A second terminal of a second capacitor connected to a second terminal of the first capacitor is connected to a ground terminal. A first diode is connected to the first electrodes through a first inductor and a fifth transistor, which forms a voltage rising path. A second diode is connected to the first electrodes through a second inductor and a sixth transistor, which forms a voltage falling path. A third diode is connected to the third transistor and the second diode, which forms a voltage sustaining path during a voltage rising period. A fourth diode is connected to the second transistor and the first diode, which forms a voltage sustaining path of a voltage falling period.