Abstract: An electro-luminescence panel that is adaptive for displaying a gray scale of picture. In the panel, a plurality of data lines are arranged in such a manner to cross a plurality of gate lines. electro-luminescence cells are provided at each intersection between the gate lines and the data lines. A cell driving circuit is provided at each of the electro-luminescence cells to respond to a signal at the data lines, thereby controlling a light quantity emitted from the electro-luminescence cells. A data driver supplies a voltage pixel signal to the data lines. A plurality of current drivers responds to the voltage pixel signal to control a current amount going through the data lines from the cell driving means.

Abstract: A data-driving apparatus of an electro-luminescence display panel includes a display panel receiving a current signal to display an image, and a data driver having a plurality of current sink data drive parts in order to supply data to the display panel based on a constant current, wherein the current sink data drive part comprises a current sink data drive integrated circuit for supplying the data to the display panel based on the constant current, and a reference current supply/path part for supplying the constant current to the current sink data drive integrated circuit and, at a same time, supplying the same constant current to an adjacent current sink data driver in a cascade circuit configuration.

Abstract: An electro-luminescence panel that is capable of improving brightness. In the panel, a single of compensation circuit is configured for a single of gate lines. Accordingly, the panel can considerably improve an aperture ratio in comparison to the existent electro-luminescence panel adopting a compensation circuit for each pixel. Also, it can improve a throughput and eliminate a stripe occurring at the pixel cell.

Abstract: A driving circuit of an organic electro luminescence display device for reducing driving power consumption. The reduction is accomplished by constructing power voltage supplying lines on respective pixels individually and constructing common electrodes on respective pixels for individually applying common voltages to the respective pixels. Alternatively, constructing power voltage supplying lines and the common electrodes on the pixels individually, thereby supplying power voltages appropriate for the respective R, G and B pixels individually.

Abstract: Device and method for recording a data on an optical recording medium, the device including a controller for transmitting a data to be written, if the data to be written is produced, together with a control signal, determining that a data in a block of the sector the data to be written is valid if the data to be written is a sector unit data, marking a result of the determination as identification information in the control signal, and transmitting the identification information, and a data writing part for identifying the identification information in the control signal from the controller, and writing the data from the controller in the sector designated by the control signal directly, if the identification information indicates that the data in the block having the sector the data to be written therein is not valid, thereby reducing data writing failure caused by failure of reading data in sectors in a block other than the sector the data to be written therein, and enhancing a system performance in writing

Abstract: Electroluminescent display panel and method for operating the same. The electroluminescent display panel having a plurality of unit pixels defined by a plurality of gatelines, and a plurality of sourcelines running perpendicular to each other, the unit pixel including a first switching device, a capacitor having a first terminal connected to an output terminal of the first switching device, and a second terminal connected to a power source voltage terminal, a second switching device connected to the power source voltage terminal, an electroluminescent part, and a light emission suppressing part connected to the one end of the capacitor for turning off the electroluminescent part for a preset period during a period before the present frame is operated, by receiving an enable signal that causes discharge of the capacitor and discharging a charge stored in the capacitor, thereby fabricating a high definition display.

Abstract: Device and method for recording a data on an optical recording medium, the device including a controller for transmitting a data to be written, if the data to be written is produced, together with a control signal, determining that a data in a block of the sector the data to be written is valid if the data to be written is a sector unit data, marking a result of the determination as identification information in the control signal, and transmitting the identification information, and a data writing part for identifying the identification information in the control signal from the controller, and writing the data from the controller in the sector designated by the control signal directly, if the identification information indicates that the data in the block having the sector the data to be written therein is not valid, thereby reducing data writing failure caused by failure of reading data in sectors in a block other than the sector the data to be written therein, and enhancing a system performance in writing

Abstract: A driving circuit of an organic electro luminescence display device for reducing driving power consumption. The reduction is accomplished by constructing power voltage supplying lines on respective pixels individually and constructing common electrodes on respective pixels for individually applying common voltages to the respective pixels. Alternatively, constructing power voltage supplying lines and the common electrodes on the pixels individually, thereby supplying power voltages appropriate for the respective R, G and B pixels individually.

Abstract: An apparatus and method for driving an electro-luminescence panel wherein pixels in a current driving type electrode-luminescence panel are pre-charged to change a storage voltage of the pixel into the corresponding voltage within a limited scanning time. In the apparatus, a plurality of electro-luminescence cells are arranged at crossings between gate lines and data lines. A gate driver is connected to the gate lines to sequentially drive the gate lines. A data driver is connected to the data lines to apply pixel signals, via the data lines, to the electro-luminescence cells. A pre-charger is provided within the data driver to pre-charge a current into the data lines before the pixel signals are applied via the data lines.

Abstract: A driving circuit in an organic electroluminescent device includes a gate driver unit for sequentially outputting a control signal to select gate lines in a luminescent array unit and a current driver unit for supplying picture data to a data lines in the luminescent array unit corresponding to the gate lines selected by the gate driver unit and selectively driving organic electroluminescent devices of the selected line. The driving circuit includes a minimum gray level judgment unit for determining whether the picture data is of a predetermined minimum gray level; and a switching unit for receiving a control signal according to the determination made by the minimum gray level judgment unit and for selectively supplying a reference voltage or a reference current to the selectively driven organic electroluminescent devices.

Abstract: A driving circuit for an active matrix organic light emitting diode includes a gamma voltage generation unit for generating differentiated gamma reference voltages corresponding to red, green, and blue colors and a driving unit for outputting a video data signal of a frame, by receiving the respective gamma reference voltages corresponding to red, green and blue colors generated in the gamma voltage generation unit and the power voltages corresponding to red, green and blue colors from the power supply unit. The driving circuit for the active matrix organic LED generates the video signal applied to the pixel for displaying the respective RGB colors, using the power voltages and gamma reference voltages which are independent according to the respective RGB colors and accordingly the pixel can be driven exactly as described using organic substances having different RGB characteristics, thus to improve the quality of the image.

Abstract: An electro-luminescence panel that is capable of improving brightness. In the panel, a single of compensation circuit is configured for a single of gate lines. Accordingly, the panel can considerably improve an aperture ratio in comparison to the existent electro-luminescence panel adopting a compensation circuit for each pixel. Also, it can improve a throughput and eliminate a stripe occurring at the pixel cell.

Abstract: A driving circuit for an active matrix electroluminescence device (AMELD) can control an output current value according to R/G/B channels by receiving a digital signal of n bits. In the driving circuit of the AMELD having data and gate drivers that respectively transmit a data signal and a scan signal to each pixel region, the data driver includes a latch for latching a control signal temporarily stored, and a plurality of digital to analog converters (DAC) for outputting a reference current of a certain level as a data signal according to R/G/B channels is latched by the control signal.

Abstract: Disclosed an optical disc player discriminates an attribution of tracks recorded onto an inserted disc, and normally reproduce MP3 tracks recorded onto discs inserted into a plurality of disc drivers using an MP3 decoder. Also, according to a method of reproducing an optical disc player, the optical disc player discriminate a kind of an inserted disc at the optical disc player with an audio file disc, an MP3 file disc, and an general data file disc and normally performs a reproducing operation for the files or music recorded onto the inserted disc.

Abstract: An electro-luminescence panel that is adaptive for displaying a gray scale of picture. In the panel, a plurality of data lines are arranged in such a manner to cross a plurality of gate lines. electro-luminescence cells are provided at each intersection between the gate lines and the data lines. A cell driving circuit is provided at each of the electro-luminescence cells to respond to a signal at the data lines, thereby controlling a light quantity emitted from the electro-luminescence cells. A data driver supplies a voltage pixel signal to the data lines. A plurality of current drivers responds to the voltage pixel signal to control a current amount going through the data lines from the cell driving means.

Abstract: Disclosed is a power antenna apparatus for automatically extracting/retracting an antenna. A motor is controlled by a control circuit to generate a rotational force. An antenna housing has a guide slot extending longitudinally on an inner surface thereof. A rotary member is installed in the antenna housing and is rotated by the motor. A coil spring is rotatably accommodated in the antenna housing and one end thereof is fixed to the rotary member. An antenna conveying member is received together with the antenna within the coil spring as being fixedly coupled with the antenna by a lower end of the antenna. The antenna conveying member has protrusions which are loosely inserted into the guide slot of the antenna housing and conveys the antenna along with the guide slot to extract or retract the antenna by means of a rotation of the coil spring. Other embodiments are disclosed for flexible installation of the apparatus. Application of the apparatus to a wireless telephone is also disclosed.

Abstract: In a wireless telephone, when an operation such as opening or closing of a front flip cover or a key operation of communication-start or communication-end occurs, a controller obtains information for extraction or retraction of an antenna. Based on the above information, the controller controls a motor-driving by intermittently supplying a motor-driving signal by which the motor can rotate clockwise or counterclockwise during a preset time necessitated for fully extracting and retracting an antenna. While motor-driving, if a blocking force is applied to an antenna, the controller repeatedly stops supplying of the driving signals to the motor for a predetermined interval and then resumes supplying the signals. A gear unit is tightly coupled in a body with the motor, receives a rotating force from the motor shaft, and extracts and retracts an antenna.