Abstract: A semiconductor device includes a substrate having a magnetic tunneling junction (MTJ) region and a logic region, a magnetic tunneling junction (MTJ) on the MTJ region and a first metal interconnection on the MTJ. Preferably, a top view of the MTJ includes a circle and a top view of the first metal interconnection includes an ellipse overlapping the circle.

Abstract: A rear projection television includes a casing with a space therein and a plurality of modular units. A plurality of maintenance holes are formed through the casing to communicate with the space. The modular units are positioned in the space to correspond to the maintenance holes. When one component inside the casing needs repairing, only a lid covering the corresponding maintenance hole is dismounted for the user to quickly take the component out, without moving the casing. Thereby, the repair process is simplified with saved repair labor and space.

Abstract: An adjustment apparatus of a reflection mirror is disclosed, the apparatus comprising a holding base plate, an affixing block affixed on the holding base plate, at least one adjusting set, and a rotatable chassis affixed onto the affixing block, wherein the reflection mirror is affixed on the rotatable chassis. Moreover, the adjusting set comprises an adjusting screw and an adjusting spring. The adjusting screw is mounted onto the holding base plate and transpierces the holding base plate to fix an extending portion of the rotatable chassis. The adjusting spring associated with the adjusting screw supports an extending portion of the rotatable chassis to counterbalance the adjustments in the adjusting screw. When the adjusting screw is rotated in, the rotatable chassis rotates along a first direction and compresses the adjusting spring. When the adjusting screw is rotated out, the rotatable chassis rotates along an opposite direction to the first direction and stretches the adjusting spring.

Abstract: A cooling device for a reflective liquid crystal image kernel has an air duct unit on the external case, which is separated into front and rear end ducts and has an axial fan blowing downward. A guide plane has both of its lateral sides aslant downward to guide part of the air flow blown from the axial fan to the split air duct of each light valve on the outer side of the air duct unit to cool the outer surface of three light valves fixed on the outer case of the kernel. The air blown downward from the axial fan passes through the front and the rear air ducts of the air duct unit directly, and passing through the ventilation holes of the external case into the optical components such that a single fan is used to enhance heat dispersion and reduce noise.

Abstract: The present invention sucks the air from the fan at the top of the imaging assembly of the optical engine and blows the air via the air duct device downward. Some of the air is guided by the diversion board, aslant guiding surface, and aslant isolating board of the air duct device and blown into the imaging assembly for cooling the optical components. Some of the air is guided through a first air duct, a second air duct, and a third air duct extended from the outside of this main body respectively to the outer surface of the light valves. Further, some of the airflow is guided into a branch air duct and blown to a vent of the imaging assembly. By means of the changing direction diversion board, the airflow is guided towards the polarizer module, and flows out from a vent on the other side.

Abstract: A strengthened mirror structure includes a reflection mirror with a reflection surface and a back surface respectively at the opposite sides thereof, and at least one strengthening element such as a honeycomb plate. An adhesive is used to stick the strengthening element on the back surface of the reflection mirror. Whereby, the bending-resistant capability of the reflection mirror while being suspended in midair is enhanced so as to prevent the mirror from deforming and further to enhance a picture quality, and the safety problem about mirror cracking can be guarded against so as to improve a product quality.

Abstract: A rear projection television includes a casing with a space therein and a plurality of modular units. A plurality of maintenance holes are formed through the casing to communicate with the space. The modular units are positioned in the space to correspond to the maintenance holes. When one component inside the casing needs repairing, only a lid covering the corresponding maintenance hole is dismounted for the user to quickly take the component out, without moving the casing. Thereby, the repair process is simplified with saved repair labor and space.

Abstract: A casing structure of a rear projection display apparatus includes a substrate, a rear cover and a screen frame. An electronic module and an optical module are mounted on the substrate. A bracket is mounted on a front side of the substrate. The rear cover is fixedly assembled with the substrate via a slot, a flange and a screwing element. The screen frame is mounted on a front side of the rear cover. A panel and a speaker lid cover the bracket of the substrate to accomplish the casing structure. When components inside the casing structure are to be adjusted, only the panel needs to be removed, without changing the positions of the components inside the casing structure. Thereby, adjusting time is saved.

Abstract: The present invention comprises a polarizer adhered on a flange plate at the top end of a L-shape base, an aslant surface on one side of the base, two sleeve screws protruded from the center of the aslant surface, an air duct defined between an upper base and a lower base of a Z-shape fixed base, two slots disposed on the lower base for receiving the sleeve screws, and two fixing bolts securing the washers onto the sleeve screw to limit the fixed base on the aslant surface of the base. A supporting surface is formed at a flange disposed downward at both ends of the upper base of the fixed base for gluing a half-wave plate. An adjusting mechanism protruded from the lower side of the fixed base extends into a recess at the lower end of the aslant surface; a screw hole is disposed on a side of the base and having an adjusting slot with its end propping one side of the adjusting mechanism; and an elastic member with its ends respectively fixed to a side of the base and a hole of the adjusting mechanism.

Abstract: The present invention is an adjusting apparatus for an optical devices. The optical device is fixed on a carrier attached onto a sliding plate. Both sides of the carrier respectively connect with springs and a cable. The other end of the cable is from X-axis adjusting knob. In the same way, the sliding plate is attached onto a base plate being installed into a pair of sliding rails. Both sides of the base plate respectively connect with springs and a cable. The other end of the cable is from Y-axis adjusting knob. The base plate is attached into a bottom case. The upper and lower surfaces of the bottom case respectively connect with springs and a cable. The other end of the cable is from Z-axis adjusting knob. According to the mechanism of the present invention, the optical devices can be quickly and precisely aligned with three-dimension.

Abstract: The present invention comprises a polarizer adhered on a flange plate at the top end of a L-shape base, an aslant surface on one side of the base, two sleeve screws protruded from the center of the aslant surface, an air duct defined between an upper base and a lower base of a Z-shape fixed base, two slots disposed on the lower base for receiving the sleeve screws, and two fixing bolts securing the washers onto the sleeve screw to limit the fixed base on the aslant surface of the base. A supporting surface is formed at a flange disposed downward at both ends of the upper base of the fixed base for gluing a half-wave plate. An adjusting mechanism protruded from the lower side of the fixed base extends into a recess at the lower end of the aslant surface; a screw hole is disposed on a side of the base and having an adjusting slot with its end propping one side of the adjusting mechanism; and an elastic member with its ends respectively fixed to a side of the base and a hole of the adjusting mechanism.

Abstract: The present invention sucks in the air from the fan at the top of the imaging assembly of the optical engine and blows the air from the air duct device downward. Some of the air is guided by the diversion board, aslant guiding surface, and aslant isolating board of the air duct device and blown into the imaging assembly for cooling the optical components. Some of the air is guided through a first air duct, a second air duct, and a third air duct extended from the outside of this main body respectively to the outer surface of the light valves for heat dissipation. Further, some of the airflow is guided into a branch air duct and blown to a vent of the imaging assembly of the optical engine. By means of the changing direction diversion board, the airflow is guided towards the plarizer module such that the heat at the projection lens of the plarizer module can fully be dissipated, and flown out from a vent on the other side.

Abstract: The present invention relates to a reflective liquid crystal image kernel having an air duct unit on the external case, and the air duct unit having an axial fan blowing downward, wherein the air duct unit being separated into a front air duct and a rear air duct by partition, and a first air duct is being disposed in the front air duct, and a guide plane having both of its lateral sides aslant downward to guide part of the air flow blown from the axial fan to the split air duct of each light valve on the outer side of the air duct unit to cool the outer surface of the three light valves fixed on the outer case of the reflective liquid crystal image kernel, and the air blown downward from the axial fan passes through the front and the rear air ducts of the air duct unit directly, and passing though the ventilation holes of the external case into the optical components such as the X-plate, polarizer, half wave plate, and X-cube such that a single fan is used to guide and effectively use the air flow through th

Abstract: An adjustment apparatus of a reflection mirror is disclosed, the apparatus comprising a holding base plate, an affixing block affixed on the holding base plate, at least one adjusting set, and a rotatable chassis affixed onto the affixing block, wherein the reflection mirror is affixed on the rotatable chassis. Moreover, the adjusting set comprises an adjusting screw and an adjusting spring. The adjusting screw is mounted onto the holding base plate and transpierces the holding base plate to fix an extending portion of the rotatable chassis. The adjusting spring associated with the adjusting screw supports an extending portion of the rotatable chassis to counterbalance the adjustments in the adjusting screw. When the adjusting screw is rotated in, the rotatable chassis rotates along a first direction and compresses the adjusting spring. When the adjusting screw is rotated out, the rotatable chassis rotates along an opposite direction to the first direction and stretches the adjusting spring.