Abstract: A nitride based heterojunction semiconductor device includes a gallium nitride (GaN) layer disposed on a substrate, an aluminum (Al)-doped GaN layer disposed on the GaN layer, a Schottky electrode disposed in a first area on the Al-doped GaN layer, an AlGaN layer disposed in a second area on the Al-doped GaN layer, and an ohmic electrode disposed on the AlGaN layer. The first area is different from the second area.

Abstract: Provided is a display apparatus including an image processing module and a display main body, wherein the image processing module includes: an image signal processor processing an image signal; a module terminal transmitting the processed image signal in a wired manner; and a module wireless communication unit transmitting wirelessly the processed image signal, and wherein the display main body includes: a main body terminal receiving the image signal from the module terminal which is detachably connected to the main body terminal; a main body wireless communication unit receiving the image signal from the module wireless communication unit; and a display unit displaying an image corresponding to the image signal; and a controller controlling the image signal to be transmitted selectively from the module terminal to the main body terminal or from the module wireless communication unit to the main body wireless communication unit.

Abstract: A display device having an infrared receiver module. The display device includes a display part on which an image is displayed, a bezel part formed along an outer edge of the display part, an infrared receiving part provided on the bezel part, and the infrared receiver module disposed at a rear surface of the infrared receiving part and including an infrared sensor to receive an infrared signal and a plate-shaped printed circuit board on which the infrared sensor is mounted, and a distance from the outer edge of a side surface of the display part to a most distant portion of the infrared receiver module mounted on the printed circuit board in the sideward direction is shorter than a length from the outer edge of the side surface of the display part to a most distant portion of the printed circuit board.

Abstract: Provided is a display apparatus including an image processing module and a display main body, wherein the image processing module includes: an image signal processor processing an image signal; a module terminal transmitting the processed image signal in a wired manner; and a module wireless communication unit transmitting wirelessly the processed image signal, and wherein the display main body includes: a main body terminal receiving the image signal from the module terminal which is detachably connected to the main body terminal; a main body wireless communication unit receiving the image signal from the module wireless communication unit; and a display unit displaying an image corresponding to the image signal; and a controller controlling the image signal to be transmitted selectively from the module terminal to the main body terminal or from the module wireless communication unit to the main body wireless communication unit.

Abstract: The present invention provides an optical film that includes i) a (meth)acrylic resin, and 5 to 45 parts by weight of ii) a graft copolymer, prepared by grafting a (meth)acrylic resin onto a copolymer of (meth)acrylic rubber and aromatic vinyl compound, based on 100 parts by weight of the i) (meth)acrylic resin, and an electronic device including the optical film.

Abstract: The present invention provides an optical film that includes i) a (meth)acrylic resin, and 5 to 45 parts by weight of ii) a graft copolymer, prepared by grafting a (meth)acrylic resin onto a copolymer of (meth)acrylic rubber and aromatic vinyl compound, based on 100 parts by weight of the i) (meth)acrylic resin, and an electronic device including the optical film.