Abstract: A panel driving method for driving pixels of a panel. The pixels are classified into a plurality of groups and the pixels of one of the plurality of groups are addressed and sustain-discharged before the pixels of another one of the plurality of groups are addressed and sustain discharged. In the panel driving method, a frame period for displaying a single image is divided into a plurality of sub-fields, each of which has a predetermined gradation, and the sub-fields are selectively operated to determine a gradation of visual brightness for each cell. In at least one of the sub-fields, an address period and a sustain period are sequentially performed on the pixels of each of the groups. While an address period is being performed on the pixels of a one of the groups, the pixels of other groups are idle.

Abstract: A plasma display panel sustain-discharge circuit. First and second signal lines for supplying first and second voltages and at least one inductor coupled between one end of the panel capacitor and a third voltage are formed. Energy is stored in the inductor through a path formed between the third voltage and the first signal line in a state where a voltage of one end of the panel capacitor is substantially fixed to the first voltage. The voltage of one end of the panel capacitor substantially decreases to the second voltage using resonance current generated between the inductor and the panel capacitor and the stored energy. Energy is stored in the inductor through a path formed between the third voltage and the second line in a state where a voltage of one end of the panel capacitor is substantially fixed to the second voltage.

Abstract: An input device includes a sensor configured to generate a signal related to a change in inertia around at least one axis of the input device in response to a contacting of the input device. A processor is configured to receive the signal from the sensor to determine whether the change in inertia around the at least one axis of the input device corresponds to a tapping of the input device.

Abstract: A method and apparatus for displaying a grayscale of a plasma display panel are provided. In the method, an externally input image signal is divided into frames and each frame is divided into a plurality of subfields allocated a predetermined brightness value. The method includes detecting a frequency of each grayscale, which indicates the number of cells to be displayed for each grayscale in a frame, comparing the frequency of each grayscale with a predetermined reference value, and adjusting at least one among the number of grayscales in the frame and the number of subfields in the frame according to the result of the comparison to set subfields in the frame.

Abstract: An average bidirectional flow tube, including a body having two side plates and upper and lower plates, a partition plate installed to be perpendicular to the side plates of the body so that front and rear ends of the tube are separated from each other, and two pairs of pressure impulse lines installed at front and rear positions of the partition plate. The upper and lower plates of the body each have a curvature to be in contact with an inner surface of a pipe in which the average bidirectional flow tube is installed, and each of the pressure impulse lines is installed to communicate with an interior of the pipe. Although a two-phase flow occurs in the pipe or the flow of the fluid flowing in the pipe is changed, an average flow rate of a fluid can be measured. Particularly, it is easy to measure an average flow rate of the fluid when the fluid flows at a low speed. Further, even when sudden pressure reduction occurs in the pipe, an additional cooling device is not required.

Abstract: 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 period. 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.

Abstract: 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.

Abstract: A plasma display device that can prevent the penetration of moisture or impurities into terminal units through a connection portion is disclosed. The device uses a protection member covering outer sides of the connection portion between the terminal units of electrodes and conductive wires of a connection member. The device includes a plasma display panel displaying an image, the plasma display panel comprising a front panel, a rear panel, and a terminal region formed at least on an edge between the front panel and the rear panel to locate terminal units of electrodes that are extended to be exposed, and a chassis base located on the rear of the plasma display panel.

Abstract: A display device for displaying pictures by sequentially performing an address period and a sustain period. The panel pixels are arranged into groups, and an address period and a sustain period are sequentially performed on the pixels of individual groups. While an address period is being performed on the pixels of a group, the pixels of other groups are idle. While a sustain period is being performed on the pixels of the group subsequent to the address period, a sustain period is selectively performed on the pixels of other groups that have already undergone an address period. Accordingly, a sustain discharge operation is performed within a short time after an address operation is performed on the pixels, so that a stable sustain discharge occurs even though narrow scan pulses and address pulses may be applied during the address operation. Also, the time required to address all pixels is reduced.

Abstract: A display device for displaying pictures by sequentially performing an address period and a sustain period. The panel pixels are arranged into groups, and an address period and a sustain period are sequentially performed on the pixels of individual groups. While an address period is being performed on the pixels of a group, the pixels of other groups are idle. While a sustain period is being performed on the pixels of the group subsequent to the address period, a sustain period is selectively performed on the pixels of other groups that have already undergone an address period. Accordingly, a sustain discharge operation is performed within a short time after an address operation is performed on the pixels, so that a stable sustain discharge occurs even though narrow scan pulses and address pulses may be applied during the address operation. Also, the time required to address all pixels is reduced.

Abstract: A plasma display apparatus including a plasma display panel, on which terminal units of electrodes are drawn and disposed at an edge of the panel, a chassis base supporting the plasma display panel, and a circuit board arranged at a rear portion of the chassis base to drive the plasma display panel. A connection member has a first end arranged at the plasma display panel and a second end arranged at the circuit board, and the first end includes a wiring unit on which conductive lines are formed to correspond in a one-to-one basis with the electrode terminal units and to overlap the electrode terminal units. At least one conductive bump is arranged between each electrode terminal unit and conductive line to couple the terminal unit with the conductive line.

Abstract: A tension member to support a Plasma Display Panel (PDP) and a PDP including the tension member include: a rim portion extending to surround an edge of the PDP, the rim portion having a zigzag or serpentine shape; and portions included in the rim portion, the portions included in the rim portion including substrate insertion holes adapted to receive portions of edges of substrates included in the PDP. The portions included in the rim portion are adapted to isolate the PDP with respect to vibration. A heat conductive sheet is arranged between a back substrate of the PDP and a chassis base, the heat conductive sheet covering an entire area of the back substrate.

Abstract: A plasma display apparatus including a plasma display panel, a chassis base coupled with the plasma display panel, a printed circuit board assembly coupled with the chassis base, a case housing the plasma display panel, the chassis base, and the printed circuit board assembly, and a liquid shielding plate for receiving liquid entering the apparatus.

Abstract: There is provided an address-while-display driving method for a surface discharge type triode plasma display panel, which includes sequentially performing resetting and addressing on each XY-electrode line pair while alternately and consecutively applying display voltages to all XY-electrode line pairs of the panel. The panel includes a front substrate and a rear substrate that are separately formed to face each other, X- and Y-electrode lines that are alternately arranged in parallel between the front and rear substrates to form the XY-electrode line pairs, and address electrode lines that are formed in perpendicular to the X- and Y-electrode lines. The address-while-display driving method includes lowering the display voltages during an addressing time for each XY-electrode line pair.

Abstract: A plasma display panel sustain-discharge circuit. First and second signal lines for supplying first and second voltages and at least one inductor coupled between one end of the panel capacitor and a third voltage are formed. Energy is stored in the inductor through a path formed between the third voltage and the first signal line in a state where a voltage of one end of the panel capacitor is substantially fixed to the first voltage. The voltage of one end of the panel capacitor substantially decreases to the second voltage using resonance current generated between the inductor and the panel capacitor and the stored energy. Energy is stored in the inductor through a path formed between the third voltage and the second line in a state where a voltage of one end of the panel capacitor is substantially fixed to the second voltage.

Abstract: Provided are a 3D input apparatus and method for precisely detecting a position of the 3D input apparatus. The 3D input apparatus includes a sensor package which measures a first velocity an acceleration, and an angular velocity of the 3D input apparatus in a relative body coordinate system; a posture information generating unit, which generates posture information of the 3D input apparatus using the measured acceleration and angular velocity; a velocity transformation unit, which transforms the measured first velocity into a second velocity in an absolute coordinate system using the posture information; and a position restoration unit, which determines a position of the 3D input apparatus by integrating the second velocity.

Abstract: A plasma display panel sustain-discharge circuit. First and second signal lines for supplying first and second voltages and at least one inductor coupled between one end of the panel capacitor and a third voltage are formed. Energy is stored in the inductor through a path formed between the third voltage and the first signal line in a state where a voltage of one end of the panel capacitor is substantially fixed to the first voltage. The voltage of one end of the panel capacitor substantially decreases to the second voltage using resonance current generated between the inductor and the panel capacitor and the stored energy. Energy is stored in the inductor through a path formed between the third voltage and the second line in a state where a voltage of one end of the panel capacitor is substantially fixed to the second voltage.

Abstract: A plasma display panel sustain-discharge circuit. First and second signal lines for supplying first and second voltages and at least one inductor coupled between one end of the panel capacitor and a third voltage are formed. Energy is stored in the inductor through a path formed between the third voltage and the first signal line in a state where a voltage of one end of the panel capacitor is substantially fixed to the first voltage. The voltage of one end of the panel capacitor substantially decreases to the second voltage using resonance current generated between the inductor and the panel capacitor and the stored energy. Energy is stored in the inductor through a path formed between the third voltage and the second line in a state where a voltage of one end of the panel capacitor is substantially fixed to the second voltage.

Abstract: An input device includes a sensor configured to generate a signal related to a change in inertia around at least one axis of the input device in response to a contacting of the input device. A processor is configured to receive the signal from the sensor to determine whether the change in inertia around the at least one axis of the input device corresponds to a tapping of the input device.

Abstract: An average bidirectional flow tube, including a body having two side plates and upper and lower plates, a partition plate installed to be perpendicular to the side plates of the body so that front and rear ends of the tube are separated from each other, and two pairs of pressure impulse lines installed at front and rear positions of the partition plate. The upper and lower plates of the body each have a curvature to be in contact with an inner surface of a pipe in which the average bidirectional flow tube is installed, and each of the pressure impulse lines is installed to communicate with an interior of the pipe. Although a two-phase flow occurs in the pipe or the flow of the fluid flowing in the pipe is changed, an average flow rate of a fluid can be measured. Particularly, it is easy to measure an average flow rate of the fluid when the fluid flows at a low speed. Further, even when sudden pressure reduction occurs in the pipe, an additional cooling device is not required.