Abstract: The disclosure provides a power management method. The power management method is applicable to an electronic device. The electronic device is electrically coupled to an adapter, and includes a system and a battery. The adapter has a feed power. The battery has a discharge power. The power management method of the disclosure includes: reading a power value of the battery; determining a state of the system; and discharging power to the system, when the system is in a power-on state and the power value is greater than a charging stopping value, by using the battery, and controlling, according to the discharge power and the feed power, the adapter to selectively supply power to the system. The disclosure further provides an electronic device using the power management method.

Abstract: A projection apparatus including a light source module, an eccentric-collimating lens, a prism lens group, a light valve and a projection lens is provided. The light source module is configured to provide an illumination light beam. The eccentric-collimating lens is disposed between the light sources and the light valve on a transmission path of the illumination light beam. The light valve is configured to convert the illumination light beam into an image light beam. The projection lens is configured to project the image light beam out of the projection apparatus. A first included angle between a first transmission direction of the illumination light beam incident on the eccentric-collimating lens and a central axis of the eccentric-collimating lens is greater than 0. The first transmission direction and a second transmission direction of the image beam exiting from the light valve are perpendicular to each other.

Abstract: An illumination system including two light source modules, two light guiding modules, a first reflector, and a light homogenization element is provided. The two light guiding modules are respectively disposed on transmission paths of light beams generated by the two light source modules to generate two guiding light beams. One of the guiding light beams is reflected to the light homogenization element by the first reflector. The other of the guiding light beams is directly transmitted to the light homogenization element. The guiding light beams are emitted from the light homogenization element and form an illumination light beam. A projection apparatus is also provided.

Abstract: A data transmitting method of a display device, which applies to a transmitting device and the display device. The transmitting device includes a first transmitting module. The display device includes a processing module, a second transmitting module, a storage module, and a display module. The data transmission method includes steps of: select a file on the transmitting device; compress the file to form a compressed file; send the compressed file to the display device via the first transmitting module; receive the compressed file by the second transmitting module of the display device; decompress the compressed file by the processing module to obtain the file; write the file into the storage module by the processing module and correspondingly displaying on the display module based on the file. In this way, a time for transmitting the file could be effectively reduced.

Abstract: The present disclosure relates to a panel control system and an editing method thereof. The panel control system includes a display panel and a processing device connected to the display panel. The processing device includes a graphical user interface (GUI) program, including an interface element window which includes a plurality of interface elements, and an interface editing window connected to the interface element window. Each of the interface elements includes an element command window, an element parameter window, and an element attribute window. The element command window includes a plurality of original element commands. The plurality of the original element commands are dragged to the element parameter window to form a plurality of element parameter commands. The element attribute window includes a plurality of element attribute commands.