Abstract:
An apparatus and a method for converting data, and an apparatus and a method for driving an image display device using the same are provided to enhance image quality by extending a grayscale in a grayscale overlay portion. An apparatus for converting data includes a grayscale detection unit(200) and a grayscale compensation unit(210). The grayscale detection unit detects the same grayscale between vertical and horizontal adjacent pixels in M-bit data, which is input from outside. The grayscale compensation unit compensates the same grayscale according to a detection signal from the grayscale detection unit and generates N-bit data according to the compensation. The grayscale detection unit includes a line memory(202) and a grayscale analyzing unit(204). The line memory stores the M-bit data for every horizontal line units. The grayscale analyzing unit analyzes the M-bit data from the line memory and generates the detection signal including grayscale detection and grayscale variation signals.
Abstract:
PROBLEM TO BE SOLVED: To provide a data conversion apparatus and a data conversion method capable of improving the image quality of a video embodying a natural video, to provide a driving apparatus and a driving method for a video display device using the data conversion apparatus and method, to provide a data conversion apparatus and the data conversion method capable of improving the gray scale application efficiency of a data integrated circuit of ≥9 bits, and to provide a driving apparatus and a driving method for the image display device using the data conversion apparatus and method. SOLUTION: The data conversion apparatus comprises a gray scale detection part 200 for outputting a detection signal detecting that adjacent pixels have the same gray scale on the basis of M-bit data to which a gray scale of one pixel is input as M bits (M is an integer ≥2) and a gray scale correction part 210 for correcting the gray scale of pixels having the same gray scale on the basis of the detection signal from the gray scale detection part 200 in generating N-bit data (N is an integer larger than M) whose gray scale is extended from the M-bit data. COPYRIGHT: (C)2008,JPO&INPIT
Abstract:
An apparatus and method for driving an LCD device is provided. The apparatus for driving an LCD device comprises an image display unit that includes liquid crystal cells formed in each region defined by a plurality of gate lines and a plurality of data lines. A data driver supplies analog video signals to the respective data lines. A gate driver supplies scan pulses to the respective gate lines. A data converter detects motion vectors from input data and generating modulated data by filtering the input data in accordance with the motion vectors to generate overshoot or undershoot in a boundary along a motion direction. A timing controller aligns the modulated data to supply the aligned data to the data driver and operates the data driver and the gate driver.
Abstract:
The device has a printed circuit board (PCB) (112) with LED packages (114) comprising LED chips. The PCB has radiation plate with asymmetrical shape for making outgoing angle ranges of light from the chips, to be different. An independent claim is also included for back light.