Abstract: The present invention relates to a method of driving a plasma display panel and a plasma display apparatus employing the same. In the plasma display apparatus, a plurality of scan electrodes formed in a plasma display panel are divided into first and second groups and then supplied with scan signals. When a scan bias voltage supplied in a first subfield of first and second subfields is higher than that supplied in a second subfield of the first and second subfields, a lowest voltage of a reset signal supplied in the second subfield is higher than that supplied in the first subfield. In accordance with the plasma display apparatus of the present invention, the lowest voltage of the reset signal is controlled according to the scan bias voltage in dividing the plurality of scan electrodes into two or more groups and driving them.

Abstract: Disclosed herein is a camera module. The camera module includes: a lens barrel with a built-in lens collecting external images; a housing that has a receiving space in which the lens barrel is received; a driving part that is configured to include a magnet and a coil and provides a first driving force that drives the lens barrel upward and a second driving force that drives the lens barrel downward by an electromagnetic force that is generated from the magnet and the coil; a guide ball that is provided between the lens barrel and the housing and guides the motion of the lens barrel; and a position detection part that senses the position of the lens barrel, wherein the driving part drives the lens barrel upward and downward so that a preload part that provides preload returning the lens barrel to its initial position is not required.

Abstract: A camera module according to an aspect of the invention may include: a housing; a fixed unit fixed to the inside of the housing; a lens barrel provided in the housing and having at least one lens; and a moving unit moved and supported by the fixed unit by a predetermined magnetic force, and moving the lens barrel along an optical axis, such that driving accuracy and reliability can be increased when performing auto focus or zoom.

Abstract: Disclosed is a camera module with a hinge spring which can stably support a lens barrel which is driven in a vertical direction for automatic focusing and which is made of lightweight resin, the camera module including a cylindrical lens barrel with lenses disposed therein for collecting images of external objects, a housing encasing the lens barrel in a manner such that the lens barrel vertically moves in an optical axis direction of the lenses, an automatic focusing actuator installed in the housing to cause linear motion of the lens barrel in the optical axis direction, and a ring-shaped hinge spring extrusion-molded using resin having elasticity to support an upper portion of the lens barrel and guide the linear motion of the lens barrel.

Abstract: The present invention relates to a driving apparatus for supplying a driving signal to a plasma display panel, and a plasma display apparatus employing the same. A reset signal supplied during a reset period of a first subfield of a plurality of subfields includes a first rising period where a voltage rises up to a first voltage, and a first sustain period where the first voltage is sustained. A reset signal supplied during a reset period of a second subfield includes a second rising period where a voltage rises up to a second voltage lower than the first voltage, and a second sustain period where the second voltage is sustained. The second voltage is higher than a sustain voltage. In accordance with the present invention, if it is sought to reset discharge cells of a PDP in a reset period, a signal whose voltage gradually rises up to a voltage higher than the sustain voltage is applied to a scan electrode.

Abstract: A method and apparatus for expressing a gray level with a decimal value in a plasma display panel that is capable of enhancing a picture quality. In the method and apparatus, a sustaining pulse is applied only to any one electrode of a sustaining electrode pair to thereby express a gray level with a decimal value.

Abstract: A plasma display driving method and apparatus for stabilizing an initialization upon selective erasing in a case of simultaneously performing a selective writing and a selective erasing is disclosed. In the method and apparatus, at least one selective writing sub-field for selecting on-cells using a writing discharge is arranged within a portion of one frame period, and at least one selective erasing sub-field for selecting off-cells from the on-cells using an erase discharge is arranged within the remaining interval of one frame period other than a time period arranged with the selective writing sub-field. A normal sustaining pulse is applied to the selected on-cells to sustain a discharge of the on-cells, and an initialization pulse having at least one of a pulse width and a voltage level set to be larger than the normal sustaining pulse is applied prior to said selective erasing sub-fields.

Abstract: A camera module is disclosed. In accordance with an embodiment of the present invention, the camera module includes a lens barrel, which supports a lens and in which the lens allows a ray of light to be incident at an imaging part, a driver, which moves the lens barrel along an optical axis, a body, which houses the lens barrel, and a buffering part, which is interposed between the lens barrel and the body when the lens barrel collides with the body.

Abstract: An actuator used for a camera module and controlling a lens assembly to move along an optical axis, includes a magnet disposed on a side of the lens assembly, a coil part disposed within a magnetic field of the magnet and controlling an up-and-down movement of the lens assembly when an electric power is applied, and a yoke part disposed to horizontally move the magnet disposed on the side of the lens assembly. The lens assembly is provided with a friction-generating member generating a frictional force to the lens assembly in an opposite direction to a direction in which the lens assembly moves to the yoke part.

Abstract: A plasma display device is provided. In the plasma display device, a plurality of scan electrodes are divided into one or more scan electrode groups, and different driving signals are applied to the scan electrode groups. More specifically, a minimum voltage detected during a set-down period of a reset period is made to be discrepant from a scan voltage, thereby reducing the amount by which wall charge is erased and stabilizing an address discharge. In addition, different driving signals are applied to a plurality of scan electrodes, and thus, it is possible to stabilize an address discharge even in scan electrodes to which a scan signal is applied late.

Abstract: A method of driving a plasma display panel that is adaptive for improving a picture quality. In the method, first and second sustain pulses having a different width during the sustain period are alternately applied to the first and second row electrodes.

Abstract: A plasma display device is provided. In the plasma display device, a plurality of scan electrodes are divided into one or more scan electrode groups, and different driving signals are applied to the scan electrode groups. More specifically, different scan bias voltages are applied to the scan electrodes during a scan period, and different signals are applied to the scan electrodes during a set-down period of a reset period. Therefore, it is possible to stabilize an address discharge in scan electrodes to which scan signals are applied late.

Abstract: A method of driving a plasma display panel (PDP) and a plasma display device using the same are provided. In the plasma display device, a plurality of scan electrodes formed on the PDP are divided into first and second groups to supply scan signals. When a scan bias voltage is higher in a first subfield in first and second subfields, lowermost voltages of reset signals are higher in the second subfield. According to the plasma display device, when the plurality of scan electrodes are divided into at least two groups to be driven, the lowermost voltages of the reset signals are controlled in accordance with a scan bias voltage so that it is possible to reduce address erroneous discharge in accordance with the loss of wall charges, to prevent the generation of brilliant points, and to improve the picture quality of a displayed image.

Abstract: The present invention relates to a plasma display apparatus and a method of driving the same. The plasma display apparatus according to the present invention includes a plasma display panel in which data electrodes are formed; and a data voltage controller for applying a data voltage as a floating state or a first state voltage to the data electrodes. The method of driving a plasma display apparatus according to the present invention includes the steps of: (a) applying a first voltage to the data electrodes; and (b) applying a voltage as a ground level or a floating state to the data electrodes.

Abstract: The present invention relates to a plasma display panel, and more particularly, to a method and an apparatus for driving a plasma display panel. According to one aspect of the present invention, there is provided a method of driving a plasma display panel, including the steps of selecting an operating mode based on the degree in which a data moves, and controlling differently at least one of an arrangement of sub-fields disposed within one frame period and the number of sustain pulses according to the selected operating mode. According to the method and apparatus of driving the plasma display panel of the present invention, it is thus possible to increase the picture quality when displaying data of different media such as a PC data or a TV data, power consumption can be reduced, and it is possible to extend the lifespan of a plasma display panel.

Abstract: The present invention relates to an apparatus and method for driving a plasma display panel, and more particularly, to a scan drive apparatus and method of a plasma display panel. The present invention includes a data conversion unit converting video data to converted video data suitable for the PDP, a subfield mapping unit mapping a subfield corresponding to the converted video data, a data comparison unit computing a size of a displacement current by comparing video data of a cell bundle including at least one cell situated on a specific scan line to video data of a cell bundle situated in vertical and horizontal directions of the cell bundle according to each scan type of a plurality of scan types, and a scan sequence decision unit deciding a scan sequence according to the scan type having a small displacement current inputted from the data comparison unit.

Abstract: A plasma display apparatus is disclosed. The apparatus includes: a data driver for applying a data voltage to a plurality of address electrodes; and a connection unit connected between the address electrode and the data driver, and having a different resistance from the address electrode.

Abstract: Disclosed is a camera module with a hinge spring which can stably support a lens barrel which is driven in a vertical direction for automatic focusing and which is made of lightweight resin, the camera module including a cylindrical lens barrel with lenses disposed therein for collecting images of external objects, a housing encasing the lens barrel in a manner such that the lens barrel vertically moves in an optical axis direction of the lenses, an automatic focusing actuator installed in the housing to cause linear motion of the lens barrel in the optical axis direction, and a ring-shaped hinge spring extrusion-molded using resin having elasticity to support an upper portion of the lens barrel and guide the linear motion of the lens barrel.

Abstract: An actuator used for a camera module and controlling a lens assembly to move along an optical axis, includes a magnet disposed on a side of the lens assembly, a coil part disposed within a magnetic field of the magnet and controlling an up-and-down movement of the lens assembly when an electric power is applied, and a yoke part disposed to horizontally move the magnet disposed on the side of the lens assembly. The lens assembly is provided with a friction-generating member generating a frictional force to the lens assembly in an opposite direction to a direction in which the lens assembly moves to the yoke part.

Abstract: A camera module according to an aspect of the invention may include: a housing; a fixed unit fixed to the inside of the housing; a lens barrel provided in the housing and having at least one lens; and a moving unit moved and supported by the fixed unit by a predetermined magnetic force, and moving the lens barrel along an optical axis, such that driving accuracy and reliability can be increased when performing auto focus or zoom.