Abstract: A projection system includes a plasma panel emitting light by discharging a gas; a panel driver driving the plasma panel; an illuminator focusing the light emitted from the plasma panel and converted into uniform parallel light; a display element visualizing an image with the light provided by the illuminator; and a projector projecting the image visualized by the display element to a screen at an enlarged scale.

Abstract: An LCD apparatus including an LCD panel displaying a picture thereon; an optical sheet provided at a rear of the LCD panel; a surface light source spacedly provided at a rear of the optical sheet and emitting light to the optical sheet. A supporter is provided between the optical sheet and the surface light source to support the optical sheet and the surface light source. Thus the present invention provides an LCD apparatus having an improved structure of stably supporting a surface light source and an optical sheet.

Abstract: A gateway comprising a first port connected to a network and a second port connected to a target node and being employed for a data stream between the network and applications of the target node, the gateway further comprising: a storage unit to store an IP address of the target node; an MAC address converter to set an MAC address of the target node as an MAC address of the first port; a controller to set an IP address of the second port based on an IP address of the target node, and to read the MAC address of the target node through the second port and set the IP address of the target node as an IP address of the first port; and a router to set a transmission route and transmit data to the IP address of the target node without a local loop back process, in response to the IP address of the target node and the IP address of the first port being the same.

Abstract: A plasma display panel (PDP), and more particularly, an apparatus for discharging the PDP with a time-lag by a horizontal line, thus reducing instantaneous power consumption, and a method thereof, are provided. The apparatus for discharging the PDP with the time-lag includes a signal processor for separating a vertical synchronous signal of a horizontal line from a received video signal and delaying the vertical synchronous signal of the horizontal line in order to delay the discharge time of a next horizontal line, a data controller for generating a discharge pulse for discharging pixels of the horizontal line according to the vertical synchronous signal, and a discharge pulse for discharging pixels of the next horizontal line according to the delayed vertical synchronous signal, and a displayer for discharging the horizontal line and the next horizontal line by the discharge pulses with the time-lag and displaying the horizontal lines.

Abstract: A plasma display device including: a front substrate and a rear substrate assembled to face each other; partition walls equidistantly disposed between the front and rear substrates to define a plurality of discharge cells; phosphorous layers respectively formed on inner surfaces of discharge cells; groups of stripe-shaped electrodes formed on the front and rear substrates to be orthogonal with respect to each other; and a reflective plate installed at the back surface of the rear substrate.