Company Filing History:
2 out of 4,573 
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1 out of 9 Years Active: 2001-2009
Title: Tsung-Pei Chiang: Innovator in Liquid Crystal Display Technology
Introduction
Tsung-Pei Chiang is a notable inventor based in Hsinchu Hsien, Taiwan. He has made significant contributions to the field of liquid crystal display (LCD) technology, holding a total of 4 patents. His work focuses on improving the efficiency and functionality of LCDs, which are widely used in various electronic devices.
Latest Patents
One of his latest patents is a digital liquid crystal display driving circuit. This innovative circuit is designed to drive an LCD for displaying video images. It includes a digital gamma-correction and inversion circuit that performs a digital gamma-correction process on the digitized video signal, followed by a polarity inversion process on selected lines of the video signal. The circuit is directly coupled to a display memory unit, allowing it to fetch the digitized video signal efficiently. Additionally, it features a digital-to-analog conversion means for converting the digital output into analog form. The LCD driving circuit also comprises an LCD timing control circuit, which converts video control signals into a timing control signal for the LCD. Furthermore, it includes a PWM and shutdown circuit to manage power supply and idle states, making it compact, cost-effective, and energy-efficient.
Another significant patent is the drive circuit of a thin-film transistor type liquid crystal display. This circuit consists of a series of source drivers, each equipped with a charge pump to compensate for voltage drops caused by the metal wires connecting neighboring source drivers. Capacitors are connected to the power lines for rectifying and filtering the power source. The drive circuit also includes gate drivers, with charge pumps installed in each gate driver to ensure normal operation despite voltage drops.
Career Highlights
Tsung-Pei Chiang has worked with prominent companies in the electronics industry, including AU Optronics Corporation and Unipac Octoelectronics Corp. His experience in these organizations has contributed to his expertise in LCD technology and innovation.
Collaborations
One of his notable coworkers is Chun-Ta Chen, with whom he has collaborated on various projects related to LCD technology.
Conclusion
Tsung-Pei Chiang's contributions to liquid crystal display technology have significantly advanced the field. His innovative patents and career achievements reflect his dedication to improving electronic display systems. His work continues to influence the development of efficient and effective LCD technologies.