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An apparatus for opening and closing a slide type portable terminal comprising a guide unit formed between a display unit and a body unit for guiding the display unit to be moved in a longitudinal direction, a driving unit for moving the display unit, and a switching unit for applying a power to the

An apparatus for opening and closing a slide type portable terminal comprising a guide unit formed between a display unit and a body unit for guiding the display unit to be moved in a longitudinal direction, a driving unit for moving the display unit, and a switching unit for applying a power to the driving unit to move the display unit in the longitudinal direction, wherein the switching unit applies a forward power to the driving unit to move the display unit in an open direction and applies a reverse power to the driving unit to move the display unit in a closed direction.

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What is claimed is: 1. An apparatus for opening and closing a slide type portable terminal, comprising: a guide unit formed between a display unit and a body unit for guiding the display unit to move in a longitudinal direction, the guide unit comprising a guide groove formed at a rear surface of t

What is claimed is: 1. An apparatus for opening and closing a slide type portable terminal, comprising: a guide unit formed between a display unit and a body unit for guiding the display unit to move in a longitudinal direction, the guide unit comprising a guide groove formed at a rear surface of the display unit in the longitudinal direction and slidably coupled to a guide hook protrudingly formed at a front surface of the body unit, wherein the display unit moves along the guide groove into which the guide hook is inserted; a driving unit for moving the display unit; and a switching unit for detecting movement of the display unit and applying a power to the driving unit to move the display unit, wherein when the display unit reaches a maximum opened or closed position, the switching unit detects the position of the display unit to turn off the power applied to the driving unit. 2. The apparatus of claim 1, wherein the switching unit applies a forward power to the driving unit to move the display unit in an open direction and applies a reverse power to the driving unit to move the display unit in a closed direction. 3. The apparatus of claim 1, wherein the guide hook comprises an elastic material. 4. The apparatus of claim 1, wherein the driving unit comprises: a driving motor mounted at the body unit for generating a rotative force when the power is applied; a pinion gear rotatably mounted at a rotational shaft of the driving motor wherein the pinion gear rotates when the rotative force is generated; and a rack gear formed at the rear surface of the display unit in the longitudinal direction and engaging the pinion gear. 5. The apparatus of claim 4, wherein the display unit moves in the longitudinal direction upon the rotating pinion gear moving the engaged rack gear when the rotative force is generated. 6. The apparatus of claim 1, wherein the switching unit comprises: at least one switch operation groove formed at the rear surface of the display unit; and a driving switch mounted at an upper front surface of the body unit for turning a power source on and off. 7. The apparatus of claim 6, wherein the driving switch turns off a power source when the driving switch is inserted into the at least one switch operation groove and turns on a power source when the driving switch is not inserted into the at least one switch operation groove. 8. The apparatus of claim 1, wherein the driving switch operates the driving motor in a forward direction and a reverse direction when the driving switch is not inserted into the at least one switch operation groove. 9. The apparatus of claim 1, wherein at least one switch operation groove is formed at a position on the rear surface of the display unit such that when the driving switch is inserted into the at least one switch operating groove, the display unit is in a closed position. 10. The apparatus of claim 1, wherein at least one switch operation groove is formed at a position on the rear surface of the display unit such that when the driving switch is inserted into the at least one switch operating groove, the display unit is in an open position. 11. The apparatus of claim 1, wherein the driving switch comprises: a switch lever mounted at an upper front surface of the body unit; a first movable terminal connected to a rear surface of the switch lever for applying a forward power to the driving motor when the switch lever is inclined in a first direction; and a second movable terminal connected to the rear surface of the switch lever for applying a reverse power to the driving motor when the switch lever is inclined in a second direction. 12. The apparatus of claim 11, wherein the driving switch further comprises: a first fixed terminal, wherein when the first movable terminal contacts the first fixed terminal, a forward power is applied to the driving motor; and a second fixed terminal, wherein when the second movable terminal contacts the second fixed terminal, a reverse power is applied to the driving motor. 13. The apparatus of claim 12, further comprising: a supporting plate for supporting the first and the second fixed terminals; and a spring installed between the supporting plate and the switch lever for providing an elastic force to the switch lever. 14. The apparatus of claim 11, wherein the driving switch further comprises a ground movable terminal connected to the rear surface of the switch lever for turning off the power source when the switch lever is in an upright position. 15. The apparatus of claim 14, wherein the driving switch further comprises a ground fixed terminal, wherein when the ground movable terminal contacts the ground fixed terminal, the power source is turned off. 16. The apparatus of claim 1, wherein the switching unit comprises: a counter electromotive current detecting sensor; and a controller. 17. The apparatus of claim 16, wherein the counter electromotive current detecting sensor detects a counter electromotive current generated when a rotor of a driving motor is forcibly rotated and applies a signal to the controller to drive the driving motor. 18. The apparatus of claim 17, wherein the rotor of the driving motor is forcibly rotated when the display unit is pushed to move in the longitudinal direction. 19. The apparatus of claim 1, wherein the switching unit comprises: at least one magnet mounted at the rear surface of the display unit; a magnetic detecting sensor mounted at the front surface of the body unit; and a controller. 20. The apparatus of claim 19, wherein the magnetic detecting sensor is opposite to the at least one magnet for detecting a magnetic force of the at least one magnet. 21. The apparatus of claim 20, wherein the at least one magnet is mounted at a position such that the display unit is closed when arranged to be opposite to the magnetic detecting sensor. 22. The apparatus of claim 20, wherein the at least one magnet is mounted at a position such that the display unit is open when arranged to be opposite to the magnetic detecting sensor. 23. The apparatus of claim 19, wherein a signal from the magnetic detecting sensor is applied to the controller to drive a driving motor when the magnetic detecting sensor does not detect a magnetic force of the at least one magnet. 24. The apparatus of claim 19, wherein a signal from the magnetic detecting sensor is applied to the controller to turn off a driving motor when the magnetic detecting sensor detects a magnetic force of the at least one magnet. 25. A method for opening and closing a slide type portable terminal, the method comprising: detecting movement and position of a display unit; applying a power to a driving unit; guiding the display unit to move about a body unit in a longitudinal direction; moving the display unit using the driving unit; and turning off the power applied to the driving unit when the display unit is detected to reach a maximum opened or closed position, wherein: the display unit comprises a guide groove formed at a rear surface to move in a longitudinal direction; the body unit comprises a guide hook protrudingly formed at a front surface; and the display unit moves along the guide groove slidably coupled to the guide hook which is inserted into the guide groove. 26. The method of claim 25, further comprising applying a forward power to the driving unit to move the display unit in an open direction and applying a reverse power to the driving unit to move the display unit in a closed direction. 27. The method of claim 25, further comprising: generating a rotative force with a driving motor when the power is applied; rotatating a pinion gear rotatably mounted at a rotational shaft of the driving motor; and moving a rack gear engaged to the pinion gear and formed at the rear surface of the display unit in the longitudinal direction. 28. The method of claim 25, further comprising: turning off a power source when a driving switch is inserted into at least one switch operation groove; and turning on a power source when the driving switch is not inserted into the at least one switch operation groove. 29. The method of claim 25, further comprising: detecting a counter electromotive current generated when a rotor of a driving motor is forcibly rotated; and driving a driving motor upon such detection. 30. The method of claim 25, further comprising: mounting at least one magnet at the rear surface of the display unit; mounting a magnetic detecting sensor at the front surface of the body unit; driving a driving motor when the magnetic detecting sensor does not detect a magnetic force of either of the at least one magnet; and turning off the driving motor when the magnetic detecting sensor detects a magnetic force of either of the at least one magnet.