Company Filing History:
Years Active: 2014-2015
Title: Innovations of Chung-En Cheng in Liquid Crystal Display Technology
Introduction
Chung-En Cheng is a notable inventor based in Tainan, Taiwan. He has made significant contributions to the field of liquid crystal display (LCD) technology. With a total of 2 patents to his name, his work focuses on enhancing the performance and quality of color LCD devices.
Latest Patents
Chung-En Cheng's latest patents include innovative designs for color liquid crystal display devices. One of his patents describes a color liquid crystal display device that features a liquid crystal display element and a backlight unit. This device incorporates a color filter with red, green, and blue filter segments. The blue filter segment is made from a blue photosensitive resin composition, which includes a pigment combination, an alkali-soluble resin, a compound with an ethylenic group, and a photoinitiator. The pigment combination consists of a copper phthalocyanine-based blue pigment. The color filter is designed to have a z value ranging from 0.3 to 0.5 in a chromaticity diagram of the XYZ color system. The backlight unit is coupled to the liquid crystal display element and operates at a color temperature ranging from 8,000 K to 20,000 K.
Another patent by Cheng focuses on a color liquid crystal display device that includes a red filter segment. This segment is prepared from a red photosensitive resin composition, which also includes a pigment combination, an alkali-soluble resin, a compound with an ethylenic group, and a photoinitiator. The pigment combination in this case consists of an azo-based red pigment and an anthraquinone-based red pigment, with a weight ratio ranging from 20/80 to 80/20. The backlight unit for this device operates at a color temperature ranging from 6,000 K to 20,000 K.
Career Highlights
Chung-En Cheng is currently employed at Chi Mei Corporation, where he continues to innovate in the field of display technology. His work has contributed to advancements in the quality and efficiency of liquid crystal displays, making them more vibrant and effective for various applications.
Collaborations
Cheng has collaborated with notable coworkers, including Bo-Hsuan Lin and Jung-Pin Hsu. Their combined expertise has further enhanced the development of innovative display technologies.