Abstract:
Disclosed herein are an apparatus and method for driving a plasma display panel in which dithering noise can be minimized. According to the present invention, the apparatus for driving the plasma display panel includes a red dithering mask pattern in which a dithering pattern of red sub-pixels among sub-pixels is stored, a green dithering mask pattern in which a dithering pattern of green sub-pixels among the sub-pixels is stored, and a blue dithering mask pattern in which a dithering pattern of blue sub-pixels among the sub-pixels is stored, wherein the red dithering mask pattern, the green dithering mask pattern and the blue dithering mask pattern are set to be different from one another. Therefore, concentration of light can be prevented and dithering noise can be thus minimized.
Abstract:
A composite cooking apparatus having a body, a heating unit, an induction heating unit, and an insulating plate. The heating unit is positioned in the body to generate heat used to heat food. The induction heating unit is positioned adjacent to the heating unit to generate a magnetic field to cook the food by induction heating. The insulating plate is positioned between the heating unit and the induction heating unit to prevent heat generated from the heating unit from being transmitted to the induction heating unit. Further, the insulating plate is provided with at least one heat reflecting layer to reflect the heat generated from the heating unit.
Abstract:
Disclosed herein are method and apparatus for processing the gray level in which error diffusion noise can be minimized while enhancing the power of gray level representation. According to an embodiment of the present invention, the method includes the steps of performing a random error diffusion operation on the video data, and performing a dithering operation on the error-diffused video data. According to another embodiment of the present invention, the method includes the steps of performing a random error diffusion operation on the video data using a first random coefficient value, and performing a random dithering operation on the error-diffused video data using a second random coefficient value. According to still another embodiment of the present invention, the method includes the steps of performing a random error diffusion operation on video data of a corresponding pixel using error conversion coefficients and a random error diffusion coefficient each calculated from pixels adjacent to the corresponding pixel, and performing a dithering operation on the random error-diffused video data using a plurality of dither mask patterns which are divided on a per gray level basis and on a per frame basis.
Abstract:
A method and apparatus for encoding and decoding data for a recording system. The method of encoding data involves encoding input data into a predetermined code and precoding the predetermined code so that output levels of a channel can be detected, the channel being defined by a predetermined channel polynomial.
Abstract:
A variable capacity rotary compressor including first and second compression chambers having different capacities, and a rotating shaft. First and second eccentric cams are mounted to the rotating shaft to be eccentric in a same direction. First and second eccentric bushes are fitted over the first and second eccentric cams to make an angle between eccentric lines of the first and second eccentric bushes be less than 180°. A locking pin functions to change a position of the first or second eccentric bush to a maximum eccentric position. Further, a slot is formed on the rotating shaft between the first and second eccentric bushes. In this case, the slot having a predetermined length is formed to have a same angle as the angle between the eccentric lines of the first and second eccentric bushes. The locking pin is inserted into the slot.
Abstract:
A variable capacity rotary compressor is designed to prevent eccentric bushes from slipping during a compression operation, and thereby prevent noise from being generated and increase durability. The variable capacity rotary compressor includes a housing to define first and second compression chambers having different capacities therein. First and second eccentric cams are mounted to a rotating shaft to be placed in the first and second compression chambers, respectively. First and second eccentric bushes are rotatably fitted over the first and second eccentric cams, respectively. First and second rollers are rotatably fitted over the first and second eccentric bushes, respectively. First and second vanes partition the first and second compression chambers, respectively. A locking unit functions to make one of the first and second eccentric bushes be eccentric from the rotating shaft while making a remaining one of the first and second eccentric bushes be released from eccentricity from the rotating shaft, according to a rotating direction of the rotating shaft. A restraining unit is outwardly projected from the rotating shaft by a centrifugal force when the rotating shaft is rotated, thus restraining the first and second eccentric bushes.
Abstract:
Provided are a wire grid polarizer and a backlight unit using the wire grid polarizer. The wire grid polarizer comprises a first grid layer formed on a substrate and provided with at least one of a first grid pattern, and a second grid layer formed on the first grid pattern and provided with at least one of a second grid pattern made of metal material wherein the first grid layer is made of high molecular substance having a lower refraction index than that of the substrate. By forming a first grid pattern on a substrate using a high molecular substance layer and by forming a metal grid pattern on the first grid pattern, transmission rates of respective wavelengths depending on light angles of incident light are controlled and thereby minimize color variations depending on view angle.
Abstract:
Provided is a method of manufacturing a wire grid polarizer in which a stable color coordinate can be implemented. According to the present invention, in a process where a second grid pattern of metal pattern is formed over a first grid pattern made of resin material, metal layer is deposited in a concave portion formed between adjacent first grid patterns to form void portion and a width and a height of the second grid pattern are adjusted depending on adjustment of a width of the voids, and thereby improving a process efficiency.
Abstract:
Provided is a nanowire manufacturing method, comprising forming a plurality of grid patterns on a substrate, forming a nanowire on the grid patterns, and separating the grid pattern and the nanowire. According to the present invention, the width and height of the nanowire can be adjusted by controlling the wet-etching process time period, and the nanowire can be manufactured at a room temperature at low cost, the nanowire can be mass-manufactured and the nanowire with regularity can be manufactured even in case of mass production.
Abstract:
The present invention relates to a treatment agent for diabetic complications, and a method for the treatment of diabetic complications using the same. The present invention confirmed that Osteomeles schwerinae extract and its fractions inhibited the generation of AGEs, the index for diabetic complications, inhibited the activation of aldose reductase, had anti-cataract activity, and had anti-oxidative activity. Thus, the present invention relates to a preventive and therapeutic agent for diabetic complications containing the said Osteomeles schwerinae extract and its fraction as an active ingredient.