Abstract: A light emitting device includes an epitaxial structure and first and second electrodes on a side of the epitaxial structure. The epitaxial structure includes a first-type semiconductor layer, an active layer, and a second-type semiconductor layer. The active layer is disposed between the first-type semiconductor layer and the second-type semiconductor layer. The first electrode is disposed on the epitaxial structure to be electrically connected with the first-type semiconductor layer. The second electrode is disposed on the epitaxial structure to be electrically connected with the second-type semiconductor layer. The second electrode is in ohmic contact with a second-type window sublayer of the second-type semiconductor layer.

Abstract: A method and apparatus for forming tungsten features in semiconductor devices is provided. The method includes exposing a top opening of a feature formed in a substrate to a physical vapor deposition (PVD) process to deposit a tungsten liner layer within the feature. The PVD process is performed in a first processing region of a first processing chamber and the tungsten liner layer forms an overhang portion, which partially obstructs the top opening of the feature. The substrate is transferred from the first processing region of the first processing chamber to a second processing region of a second processing chamber without breaking vacuum. The overhang portion is exposed to nitrogen-containing radicals in the second processing region to inhibit subsequent growth of tungsten along the overhang portion. The feature is exposed to a tungsten-containing precursor gas to form a tungsten fill layer over the tungsten liner layer within the feature.

Abstract: According to an embodiment, the projection apparatus maintenance system is adapted for a projection apparatus having a communication interface and a projection unit. The projection unit projects a projection image according to an image data. The method comprises: transmitting a usage data corresponding to the projection apparatus to a mobile apparatus through the communication interface; transmitting the usage data to a network server through the mobile apparatus and receiving a maintenance data which is provided by the network server in correspondence to the transmitted usage data; receiving at least one maintenance command from the mobile apparatus through the communication interface; and executing a maintenance operation corresponding to the projection apparatus according to the at least one maintenance command. As a result, the maintenance efficiency of the projection apparatus can be improved.

Abstract: A protection system for a display apparatus and a method thereof are provided. The protection system includes an electronic key and a protection module. The protection system performs security identification with a plurality of passwords and updates the passwords every time after the security identification is completed to improve the security of the display apparatus. The display apparatus is allowed to be turned on when one of the passwords is correct, and the passwords are separately updated after the security identification is completed. The protection system is highly secure and provides greater convenience to users.

Abstract: A detection system and method for detecting received video signal type within a video device. The video device comprises a plurality of signal receivers; the signal receiver is used for receiving a signal, wherein each of the signal receivers receives one type of the corresponding video signal. First, the video device receives the signal, wherein the receivers receives a signal, directly detects one of the signal receivers which is carrying the video signal, and determines the type of the video signal being inputted to the signal receiver; and finally sending the video signal to an image processor for image processing.

Abstract: A protection system for a display apparatus and a method thereof are provided. The protection system includes an electronic key and a protection module. The protection system performs security identification with a plurality of passwords and updates the passwords every time after the security identification is completed to improve the security of the display apparatus. The display apparatus is allowed to be turned on when one of the passwords is correct, and the passwords are separately updated after the security identification is completed. The protection system is highly secure and provides greater convenience to users.

Abstract: A detection system and method for detecting received video signal type within a video device. The video device comprises a plurality of signal receivers; the signal receiver is used for receiving a signal, wherein each of the signal receivers receives one type of the corresponding video signal. First, the video device receives the signal, wherein the receivers receives a signal, directly detects one of the signal receivers which is carrying the video signal, and determines the type of the video signal being inputted to the signal receiver; and finally sending the video signal to an image processor for image processing.