Pei-Ming Chen has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
Abstract: An OLED display, an OLED panel and a driving device are disclosed. Wherein, the OLED display includes the OLED and the driving device. The OLED panel has a plurality of display pixels, every display pixel includes a plurality of sub-pixels, and each of the sub-pixels respectively corresponds to a different color. The driving device includes a plurality of current mirrors for correspondingly receiving one of a plurality of data currents and for generating driving currents sent to the corresponding sub-pixels, respectively. Each the current mirror includes a plurality of transistors and generates a different driving current to drive the corresponding sub-pixels according to the ratios between the channel widths and channel lengths of the transistors in the current mirror.
Abstract: An active TFT circuit structure with current scaling function is disclosed, which includes a current source, a data line, a scan line, a direct current voltage source, capacitors and four transistors, wherein the capacitors form a cascade structure. During the ON-state, the two of the transistors are turn-on based on the voltage provided by the scan line, so that the data current provided by the current source flows the data line and the transistor which is one of the opened transistors, thereby arriving an emitting light element and the transistor connected to the emitting light element. When the pixel circuit changes from ON- to OFF-state, the voltage of the node between the storage capacitors reduces due to the feed-through effect of one of storage capacitor, thereby reducing the driving current of the emitting light element. Therefore, it can be achieved the current scaling function.
March 2, 2006
March 15, 2007
Quanta Display Inc., National Chiao Tung University
Abstract: An embedded controller and a computer system with the same are provided. The embedded controller includes a control unit and a firmware. The embedded controller also has a memory device embedded therein or connected thereto. By a synchronal software tool or a driver, the personal information data stored in the personal information software is synchronized with the data stored in the memory device of the embedded controller. When the computer is shut down or is in a sleeping mode, the embedded controller takes over handling the events scheduled in the personal information software. Whenever any scheduled event occurs, the embedded controller notifies the user by a sound or a displayed message. The embedded controller can also synchronize the data stored in the memory device with a hand-held device connected to the computer system when the computer is shut down or in a sleeping mode.