Abstract: A piston of an engine has a bowl including: a top end that is a surface inclined toward a center of the piston from an edge portion of a top of the piston; a central projection protruding upward at a center of the piston; a recession extending outwardly from the central projection and inclined downward beneath the top end; and a neck connecting the recession and the top end to each other wherein a minimum diameter of the neck is within 62˜65% of a cylinder bore diameter, a maximum diameter of the recession is within 102˜105% of the minimum diameter of the neck, a maximum depth from the top of the piston to a deepest portion of the recession is within 10˜20% of the cylinder bore diameter, and a center of a radius of curvature of the neck is disposed within 2˜10% of the cylinder bore diameter.

Abstract: A turbocharger control duty deviation compensation method may include judging a learning condition given deviation of a target position calculated using a turbocharger model and an actual position of a turbocharger together with atmospheric pressure, when a turbocharger control starts with a boost control duty value which matches with a required boost pressure target of an engine based on controller, calculating a learning value based on (100?target control duty)/(100?actual control duty) when the control duty deviation compensation control of the target control duty value calculated using the turbocharger actuator control duty model and the actual control duty value of the turbocharger are necessary, and acquiring a control to which any difference in the hardware-based characteristics of the driving mechanism related to the turbocharger are reflected since the control duty value of the target position is corrected with the calculated learning value, and the turbocharger is controlled.

Abstract: A liquid crystal display capable of being minimized, in which a backlight assembly has a light source portion for generating light, a liquid crystal display panel receives the light from the backlight assembly to display images. A mold frame for sequentially accepting the backlight assembly and liquid crystal display panel is formed to be gradually thinner as further advancing from a first side of accepting to place the light source portion toward a second side opposing to the first side. Also, a chassis coupled to be opposite to the mold frame for closely fixing the backlight assembly and liquid crystal display panel to the mold frame is formed to be gradually thinner as further advancing from the first side of accepting to place the light source portion toward the second side opposing to the first side. Thus, the liquid crystal display can be slimmed.

Abstract: A liquid crystal display capable of being minimized, in which a backlight assembly has a light source portion for generating light, a liquid crystal display panel receives the light from the backlight assembly to display images. A mold frame for sequentially accepting the backlight assembly and liquid crystal display panel is formed to be gradually thinner as further advancing from a first side of accepting to place the light source portion toward a second side opposing to the first side. Also, a chassis coupled to be opposite to the mold frame for closely fixing the backlight assembly and liquid crystal display panel to the mold frame is formed to be gradually thinner as further advancing from the first side of accepting to place the light source portion toward the second side opposing to the first side. Thus, the liquid crystal display can be slimmed.

Abstract: Disclosed herein is a lighting device using a cold cathode fluorescent lamp (CCFL), which has reduced size and volume and concentrates light from the CCFL, thus enhancing its luminance. The lighting device includes a casing which is open on a surface thereof, thus having an open part, with an ON/OFF switch button which protrudes through a sidewall of the casing and is used to turn on or off the lighting device. A reflective plate is inserted into the casing through the open part, with a circuit board provided on a predetermined position of the reflective plate. A CCFL is inserted into the reflective plate and electrically connected to the circuit board with a cover assembled with the casing and receiving the CCFL between the casing and the cover. A socket is assembled with each end of the casing that supports both the CCFL and the cover, and is electrically connected to the circuit board.

Abstract: Disclosed herein is a lighting device using a cold cathode fluorescent lamp (CCFL), which has reduced size and volume and concentrates light from the CCFL, thus enhancing its luminance. The lighting device includes a casing which is open on a surface thereof, thus having an open part, with an ON/OFF switch button which protrudes through a sidewall of the casing and is used to turn on or off the lighting device; a reflective plate inserted into the casing through the open part, with a circuit board provided on a predetermined position of the reflective plate; a CCFL inserted into the reflective plate and electrically connected to the circuit board; a cover assembled with the casing and receiving the CCFL between the casing and the cover; and a socket which is assembled with each end of the casing, supports both the CCFL and the cover, and is electrically connected to the circuit board.

Abstract: A liquid crystal display capable of being minimized, in which a backlight assembly has a light source portion for generating light, a liquid crystal display panel receives the light from the backlight assembly to display images. A mold frame for sequentially accepting the backlight assembly and liquid crystal display panel is formed to be gradually thinner as further advancing from a first side of accepting to place the light source portion toward a second side opposing to the first side. Also, a chassis coupled to be opposite to the mold frame for closely fixing the backlight assembly and liquid crystal display panel to the mold frame is formed to be gradually thinner as further advancing from the first side of accepting to place the light source portion toward the second side opposing to the first side. Thus, the liquid crystal display can be slimmed.