Abstract: The present invention relates to an interpolation technology, in particular to a deinterlacing apparatus and a method thereof which are capable of improving the definition of a picture. The method includes detecting an edge direction comprised in perimeter pixel values with inputs of a pixel value of field data in a field region to be interpolated and intra-field perimeter pixel values, detecting a direction indicating a minimum region matching error in accordance with the detected direction, yielding an intra-field interpolation value in accordance with the detected edge direction and performing an interpolation. This reduces the manufacture cost of a circuit by simplifying the circuit.

Abstract: The present invention is directed to a flat panel display whose brightness is adjusted based on inputted signals. In the flat panel display of the present invention, the pixels of the display panel are formed with capacitors for temporarily storing voltages corresponding to signals applied to the data lines responding to the scan signals applied to the scan lines and the pictures are displayed based on the voltages stored in the capacitors. Also, the display period controller controls a first period for storing a first voltage corresponding to a gray level of a picture to be displayed in the capacitors during one frame and a second period for storing a second voltage representing a black level in the capacitors, depending on a first signal representing a brightness level. Accordingly, the brightness of a variety of levels can be expressed without having to adjust a level of data voltage.

Abstract: In a level shifter, first and second PMOS transistors are connected in series between first and second power sources for supplying first high level and low level voltages, respectively, and a capacitor is formed between a contact point of the first and second transistors and the second transistor's gate. A third PMOS transistor is diode-connected and connected between the first and second transistors' gates. When a second low level voltage is input to the first transistor's gate, a second high level voltage is output to the contact point according to an on resistance ratio of the first and second transistors. When a first high level voltage is input to the first transistor's gate, the second transistor is bootstrapped according to the voltage charged to the capacitor so that a first low level voltage is substantially output to the contact point.

Abstract: The present invention relates to the motion reconstruction method from inter-frame feature correspondences of a singular video stream using a motion library.

Abstract: The inventive thin-film DC-driving electroluminescent device (ELD) is characterized by the thin-film current control layer which is inserted between a thin film phosphor layer and metal electrodes. This kind of ELD has the advantages of having a lower operation voltage than that of the conventional thin-film AC ELD and a higher resolution than that of the conventional thin-film/powder hybrid DC ELD. The thin-film current control layer acts as an energy barrier layer which supplies energetic electrons into said phosphor layer by a field-assistant injection of electron, and a current-limiting layer which prevents an electric field breakdown of said electroluminescent device caused by an excess current flow. The current control layer is embodied with a multilayered thin film laminated by an alternate deposition of metal oxides. In another embodiment, the current control layer consists of both an energy barrier layer and a current-limiting layer, separately formed.

Abstract: In an organic EL display, a scan driver is divided into several scan driving units, and the each scan driving unit includes a plurality of flip-flops and a plurality of buffer units each receiving an output of the flip-flop as an input. The flip-flop includes four NOR gates and the buffer unit includes an OR gate composed of a NOR gate and an inverter, and a buffer composed of two inverters. The NOR gates of the flip-flop and the buffer unit receive a clear signal and are composed of PMOS transistors. When the clear signal of high level is applied to non-operating ones of the scan driving units, outputs of the NOR gates become low level, and thereby, it is possible to remove static currents generated in output terminals of the NOR gates.

Abstract: Disclosed is an image display apparatus having, in every pixel, a light-emitting element such as an organic electro-luminescence (EL) element of which the brightness is controlled by a current. The image display apparatus includes transistors that form a current mirror in the pixel and using a pixel structure having two scan lines, so as to select pixels of at least two rows simultaneously, distribute the current applied to the data line to the pixel for recording display information and the adjacent pixel, and record the display information on the pixel of no more than one row among the selected pixels. This drastically increases the current for driving the data line and decreases the size of the transistors that form the current mirror in the pixel.

Abstract: A deinterlacing device and method for improving a quality of image after interpolation without a complicated circuit at the time when an interlacing screen is converted into a progressive type screen is disclosed.

Abstract: In a display, capacitors are charged with first precharge voltages at the time of applying selection signals to previous scan lines. A data driver divides a plurality of data lines into a plurality of groups each of which consists of at least one data line and applies corresponding data voltages to the data lines of respective groups sequentially. The display further includes a precharge means, and such precharge means applies second precharge voltages to data lines of at least one group before selection signals for selecting scan line are applied to the scan line connected to the pixel circuits and stops application of the second precharge voltages before corresponding data voltages are applied to the respective groups. In this way, it is possible to solve the problem of poor images due to charge redistribution of the capacitors caused by previous data voltages stored in parasitic capacitors.

Abstract: In an organic EL display, a scan driver is divided into several scan driving units, and the each scan driving unit includes a plurality of flip-flops and a plurality of buffer units each receiving an output of the flip-flop as an input. The flip-flop includes four NOR gates and the buffer unit includes an OR gate composed of a NOR gate and an inverter, and a buffer composed of two inverters. The NOR gates of the flip-flop and the buffer unit receive a clear signal and are composed of PMOS transistors. When the clear signal of high level is applied to non-operating ones of the scan driving units, outputs of the NOR gates become low level, and thereby, it is possible to remove static currents generated in output terminals of the NOR gates.

Abstract: The present invention relates to an interpolation technology adapted to a picture motion, in particular to a deinterlacing apparatus which is capable of performing accurate motion detection by finding each BD by using an initial detection value when a BD and a BPPD used for the motion detection are detected and performing low pass filtering in order to remove high frequency noise element, improving picture quality by showing motion alteration degree smoothly, and reducing manufacture cost of a circuit to be implemented by simplifying the circuit.

Abstract: A loading device of a compact disk player for an automobile is disclosed. The loading device has a roller provided at an inlet to be rotated by a driving motor, a roller arm supporting the roller to be moved up and down, the roller arm being divided into a first roller arm and a second roller arm which are connected to a connecting shaft to be in the same plane and separately rotated about the connecting shaft by a certain angle, and a spring interposed between the roller arm and a player body to bias the roller upwardly by its restoring force, whereby a disk inserted through the inlet is loaded into the player body and seated on a turntable. The loading device of the present invention has constant ejecting force, thereby preventing ejecting errors and thus improving performance and reliability of products.

Abstract: A clamp driving device of a compact disk player for an automobile is disclosed. When a disk is loaded and moved to the center of a turntable, a selective arm is rotated by the loaded disk and thus a sensor lever is moved forwardly. A checking piece of the sensor lever is disengaged from a hook piece of an idle arm, and the idle arm is rotated upwardly, thereby raising an idle gear. The idle gear is engaged with a cam gear to rotate the cam gear. A transmission bar transmits the turning force of the cam gear to a locking lever to move the locking lever forwardly. By the forward movement of the locking lever, a supporting pin of the locking lever is separated from a clamp arm, and thus the clamp arm is lowered by a spring. The disk is pressed at its upper surface by the clamp, thereby preventing deviation of the disk. The device can fulfill all clamping operations by mechanical components and without using electrical components.

Abstract: A disk guide device of a compact disk player for an automobile which is conveniently used regardless of a size of a disk by enabling only one mechanism to drive any of different disks is disclosed. A clamp arm, which is hingedly connected at its rear part to a main body, is provided at the left side of its upper surface with a pusher arm to be rotated. The clamp arm is provided at the right side of its upper surface with a locker arm and a selective arm to be rotated. The clamp arm is provided at its right side with a stopper for selectively stopping rotation of the selective arm. Since the device can drive an 80 mm disk as well as a 120 mm disk by itself, there are economical and practical advantages. Since the guide arm guides a disk while moving linearly, it is possible to achieve favorable operational smoothness and decrease of failure rate.

Abstract: The present invention relates to an electroluminescent device and method of manufacturing the same, capable of reducing the loss of light propagated toward the lateral side of the device and increasing the amount of light propagated to the front of the display to improve the brightness and efficiency of the device, in such a way that a transparent conductive film or a luminescent layer is made of compound having an orientation and is then etched to make the transparent conductive film or the luminescent layer in a protrusion shape. For this, an electroluminescent device comprises a substrate, a first electrode formed on the substrate, a luminescent layer formed on the first electrode, and a second electrode formed on the luminescent layer, wherein at least one of the first electrode, the luminescent layer and the second electrode is formed to have a protrusion at its surface is formed to have a surface of a protrusion shape at its given region.

Abstract: A phosphor emits blue color with high luminance and high color purity. The phosphor is fabricated by growing the host material of MX including a II group element (M=Ca, Sr, Zn, Ba or Mg) and a VI group element (X=S or Se) by reacting an M-precursor with a compound including the VI group element, and adding Pb2+ ions into the host material as light-emitting center ions by forming a PbX thin film through a surface saturation reaction between a Pb-precursor and H2X at a reaction temperature higher than a decomposition temperature of the Pb-precursor, wherein the Pb-precursor is a metalorganic compound in which Pb is covalent-bonded with an organic functional group.

Abstract: A motion-adaptive interpolation apparatus and method are disclosed. After an image signal is received and horizontal directional inter-frame motion information of a field to be currently interpolated is estimation, and interpolating is suitably performed based on the motion information. According to one aspect of the present invention, a basic unit image region is set for a pizel to be interpolated, a block matching error (BME) is obtained by moving the basic unit image region at certain intervals in a different direction, a linear interpolated pixel value is detected in consideration of the block matching error, and a final interpolation value is calculated and outputted by applying a rule and filtering based on the linear interpolated pizel value. Thus, a picture quality is improved after de-interlacing, and a circuit for implementation of the operation is simplified, so that a unit cost can be reduced.

Abstract: The inventive thin-film DC-driving electroluminescent device (ELD) is characterized by the thin-film current control layer which is inserted between a thin film phosphor layer and metal electrodes. This kind of ELD has the advantages of having a lower operation voltage than that of the conventional thin-film AC ELD and a higher resolution than that of the conventional thin-film/powder hybrid DC ELD. The thin-film current control layer acts as an energy barrier layer which supplies energetic electrons into said phosphor layer by a field-assistant injection of electron, and a current-limiting layer which prevents an electric field breakdown of said electroluminescent device caused by an excess current flow. The current control layer is embodied with a multilayered thin film laminated by an alternate deposition of metal oxides. In another embodiment, the current control layer consists of both an energy barrier layer and a current-limiting layer, separately formed.

Abstract: Disclosed is a video restoring apparatus and method thereof enabling to improve a video mode by interpolating field data. The present invention includes the steps of: identifying whether a scene on an image sequence is changed by receiving field data; detecting whether a 3:2 pull-down mode exists in the image sequence; generating a first interpolated frame by interleaving a field to be interpolated and adjacent fields each other when there is the 3:2 pull-down mode; generating a second interpolated frame by de-interlacing the field to be interpolated and the adjacent fields each other when there is not the 3:2 pull-down mode, and selectively outputting one of the first and second interpolated frames.

Abstract: A deinterlacing method and apparatus for digital image data is disclosed. In the present invention, one of various interpolations appropriately performed according to a detected extent and direction of motion in a pixel to be interpolated. Thus, a screen quality can significantly be improved.