Abstract: A liquid crystal display device includes a housing, a liquid crystal panel provided in the housing and comprises first and second transparent substrates spaced from each other at predetermined intervals, a sealing member to seal an internal space formed between the first and second transparent substrates, a liquid crystal to fill the internal space, first and second transparent electrodes formed in the first and second transparent substrates, respectively, and a polarizing plate to transmit light in a predetermined polarizing direction, a backlight unit disposed in the housing to emit surface light to the liquid crystal panel, and a polarizing filter disposed in the housing, and spaced from the liquid crystal panel at predetermined intervals to transmit predetermined polarized light and to block other polarized light of incident light.

Abstract: Disclosed are a heat sink for cooling a light source unit, particularly laser light sources, and an apparatus for projecting an image having the same. The heat sink includes a heat dissipation unit for cooling a light source unit, and the heat dissipation unit includes a duct part for forming a space, into which the heat of the light source unit is discharged, and guiding air, and heat dissipation fins formed integrally with the duct part.

Abstract: A projection type display apparatus is capable of significantly reducing operational noise of a color wheel. The projection type display apparatus includes a color wheel, a color wheel assembly in which the color wheel is installed, and a noise damping section which changes air flow caused by a rotation of the color wheel so as to reduce the noise.

Abstract: An inductor apparatus including an inductor having a core formed in a loop shape to form a hollow part, and a coil winding the core, and a supporting member having a supporting surface to support the core to face the hollow part, and a vibration preventing hole formed to correspond to the hollow part of the core.

Abstract: A cooling fan assembly includes a cooling fan unit having a rotating shaft and a plurality of rotating vanes combined with the rotating shaft, and a flow control unit provided in a front of a ventilation direction of the cooling fan unit to control a flow of air to reproduce a rotational directional flow component and to reduce a resistance of the flow of the air in a central portion thereof.

Abstract: A fan assembly includes a fan, a supporting case to support at least a part of the fan along a circumferential direction of the fan, and a vibration-proof member having at least one opening passing through a side thereof and interposed between the fan and the supporting case, to prevent noise from being generated from the fan. The fan assembly can efficiently prevent or dampen vibration generated by the fan and reduce noise.

Abstract: An image projecting apparatus includes a housing in which at least one vibration generating component is disposed, a vibration-proof supporting bracket coupled to a side of the housing to support the housing against an installation surface to absorb vibrations generated by the at least one vibration generating component, and a vibration guide part to couple the vibration-proof supporting bracket with the housing at a position that corresponds to the at least one vibration generating component, thereby transferring the vibrations generated by the at least one vibration generating component to the vibration-proof supporting bracket. Thus, the image projecting apparatus has a simplified structure which effectively reduces vibration noise of vibration generating components disposed therein.