Abstract: A goggle includes a lens assembly which comprises a front lens, a rear lens spaced apart from the front lens, and a liquid crystal device disposed on one of the lenses. The goggle includes a frame, which defines an aperture and a peripheral channel. The peripheral channel receives the front lens and the rear lens is positioned rearward of the channel so that the aperture receives the lens assembly. A power unit includes a battery and a drive circuit, wherein the drive circuit is connected to a pair of prongs that are electrically connectable to the liquid crystal device for operation thereof. The power unit provides a master switch connected to the battery to control application of power to the drive circuit, and a state change switch to control application of power from the drive circuit, through the prongs, to the liquid crystal device.

Abstract: A goggle includes a lens assembly which comprises a front lens, a rear lens spaced apart from the front lens, and a liquid crystal device disposed on one of the lenses. The goggle includes a frame, which defines an aperture and a peripheral channel. The peripheral channel receives the front lens and the rear lens is positioned rearward of the channel so that the aperture receives the lens assembly. A power unit includes a battery and a drive circuit, wherein the drive circuit is connected to a pair of prongs that are electrically connectable to the liquid crystal device for operation thereof. The power unit provides a master switch connected to the battery to control application of power to the drive circuit, and a state change switch to control application of power from the drive circuit, through the prongs, to the liquid crystal device.

Abstract: An organic electroluminescent (EL) device includes a first electrode, a second electrode, an electroluminescent (EL) light-emitting layer, and a printed circuit board. The first electrode is formed on a transparent substrate. The second electrode spaced is apart from the first electrode and applies an electric current to the organic EL device together with the first electrode. The EL light-emitting layer is interposed between the first and second electrodes. The printed circuit board has a multi-layered structure and is attached to the first electrode to cover the EL light-emitting layer.

Abstract: An organic electroluminescent (EL) device includes a first electrode, a second electrode, an electroluminescent (EL) light-emitting layer, and a printed circuit board. The first electrode is formed on a transparent substrate. The second electrode spaced is apart from the first electrode and applies an electric current to the organic EL device together with the first electrode. The EL light-emitting layer is interposed between the first and second electrodes. The printed circuit board has a multi-layered structure and is attached to the first electrode to cover the EL light-emitting layer.

Abstract: A liquid crystal display (LCD) device including an LCD panel having liquid crystal cells, a color filter, and fluorescent lamps for back lighting located at a rear side of the LCD panel. The light generated by respective fluorescent lamps has different wavelength distributions. Thus, the color of the display can be easily and accurately adjusted by a user. Particularly, the color can be adjusted according to user's choice or circumstances, improving an image.

Abstract: A liquid crystal display including upper and lower transparent substrates arranged parallel and spaced apart from each other a predetermined distance, a liquid crystal layer formed between the upper and lower transparent substrates, a color filter layer having red(R), green(G) and blue(B) color filter plates at predetermined intervals, formed between the upper and lower transparent substrates, and a plurality of photoelectric conversion elements for converting external light to electrical signals to be generated, installed in a region between the color filter plates.

Abstract: A simple matrix-type liquid crystal display is driven by a frame signal for indicating the starting point of each frame on a screen, a latch clock signal for latching an input data signal in a unit of a horizontal line of the liquid crystal display, and a modulation signal for controlling polarity of a voltage applied to each cell of the liquid crystal display. The phase difference between the modulation signal and the frame signal is controlled to lower and minimize flicker intensity. The reliability of the liquid crystal cell is preserved and flicker is prevented so that the picture quality is improved and life of the simple matrix-type liquid crystal display is extended.