Abstract: A duplex scanning apparatus capable of switching a scanning background includes a pair of glass plates, a pair of background boards pivoted to the glass plates and a driving mechanism. The glass plates are disposed in a frame and overlapped with each other. The two glass plates define two scanning areas face to face. A portion of the frame adjacent to an outer surface of the glass plate defines a first color area of the scanning background corresponding to the scanning area. One background board is positioned above one glass plate, and the other background board is positioned under the other glass plate and away from the one background board. Each background board defines a second color area of the scanning background corresponding to the scanning area. The driving mechanism mounted in the frame drives the background boards to turn over with respect to the corresponding glass plates.

Abstract: A scanning apparatus capable of switching a scanning background includes a pair of glass plates, a pair of background boards pivoted to the glass plates and a driving mechanism. The glass plates are disposed in a frame and overlapped with each other. The two glass plates define two scanning areas face to face. A portion of the frame adjacent to an outer surface of the glass plate defines a first color area of the scanning background corresponding to the scanning area. One background board is positioned above one glass plate, and the other background board is positioned under the other glass plate and away from the one background board. Each background board defines a second color area of the scanning background corresponding to the scanning area. The driving mechanism mounted in the frame drives the background boards to turn over with respect to the corresponding glass plates.

Abstract: An electronic write display projection system for connecting with a host computer to form a computer system. A user may scribble down anything and transmit directly to the write display projection system. The electronic write display projection system includes a S liquid crystal display panel, a touch control panel and an application software component. When the computer system and a projection device are connected together, any written data input into the electronic write display projection system are immediately projected by the projection device to a curtain or a white screen. Moreover, the written data is stored inside the host computer for subsequent use.

Abstract: An electronic note pad, having a liquid crystal display panel, a touch panel, a computer host, an application software package and a wrist slider. The user can input data at any position of the touch-panel, and the input data is directly stored in a storage apparatus in the computer host. The dimension, that is, length by width, of the liquid crystal display panel ranges from about 100 mm×140 mm to about 190 mm×260 mm. Therefore, the liquid crystal display panel is much larger than that in a personal data assistant (PDA). The larger panel allows the user to input data easily, so that the data input inconvenience of the personal data assistant is thus improved.