Abstract: A method for forming the alignment films on the substrate and a pixel structure of a liquid crystal display are disclosed. The pixel structure comprises a plurality of pixel units arranged in arrays. Each of the pixel units comprises a first substrate, a second substrate, two first alignment films and two second alignment films. The first alignment film is different from the second alignment film. The second substrate is disposed opposite to the first substrate. The two first alignment films and the two second alignment films are individually disposed on the first substrate and the second substrate, while each of the first alignment films is disposed substantially opposite to one of the second alignment films.

Abstract: An optical drive. The optical drive comprises a tray, a tray transmission mechanism joined with and moving the tray, a first gear, and a transmission element selectively joined with or released from the tray transmission mechanism and the first gear simultaneously. When the transmission element joins the tray transmission mechanism and the first gear simultaneously, rotating the first gear manually drives the transmission element and the tray transmission mechanism so as to move the tray.

Abstract: A data recording method for recordable disks. The recordable disk includes a non-border area and multiple border areas. Data is recorded in the non-border area and buffer areas in a single data write. Data is then recorded in the border areas of the recordable disk. The single data write requires only one data write initiation and one data write termination.

Abstract: A method of write frequency management for writing recorded data to an optical rewritable storage medium. The optical rewritable storage medium comprises a data area and a count area. The data area comprises multiple data units, the count area comprises multiple values, and each value represents a write frequency corresponding to one of the data units. The method receives a data write instruction comprising a write address range and the recorded data, writes the recorded data to the data units corresponding to the write address range, and updates the values corresponding to the write address range.

Abstract: A method for changing rotational speeds of a optical drive. First, a reading speed for software to read data from a disc in the optical drive is detected. Then, whether the reading speed exceeds a critical speed is determined. The critical speed is less than the lowest rotational speed of the optical drive to process a read command and exceeding a reading speed for the optical drive to process a play command. If the reading speed exceeds the critical speed, the rotational speed of the optical drive reading an audio disc or a video compact disc is changed to a high speed. If the reading speed is less than the critical speed, the rotational speed of the optical drive reading an audio disc or a video compact disc is changed to a low speed.