Location History:
- Kyoungsangbuk-do, KR (2004)
- Kyoungki-do, KR (2005)
Company Filing History:
Years Active: 2004-2005
Title: Innovations of Chul Ha Kim in Liquid Crystal Display Technology
Introduction
Chul Ha Kim is a notable inventor based in Kyoungki-do, South Korea. He has made significant contributions to the field of liquid crystal display (LCD) technology, holding two patents that showcase his innovative approach to enhancing optical efficiency in displays.
Latest Patents
One of his latest patents involves a liquid crystal display that comprises an upper array substrate and a lower color filter substrate, which are opposed and spaced a predetermined distance from each other. This invention features a reflective film formed in a matrix on a non-pixel section of the color filter substrate, along with a black matrix formed on the reflective film. The design includes red, green, and blue color filters formed on pixel sections of the color filter substrate defined by the black matrix. A lower orientation film is applied across the entire area of the substrates, including the color filters and black matrix. The invention also incorporates a pixel electrode on the pixel section of the array substrate and an upper orientation film covering the entire area of the substrates. A liquid crystal layer is interposed between the color filter substrate and the array substrate, with a partially masked lower polarizer mounted outside the color filter substrate. This innovative design minimizes optical loss by the black matrix and polarizer, thus improving optical efficiency.
Another patent by Chul Ha Kim relates to a fringe field switching mode liquid crystal display. This invention includes gate lines and data lines aligned on a transparent insulating substrate, which vertically cross each other. Common electrode lines are aligned horizontally to the gate lines, defining a pixel region in the space formed by the gate and data lines. The design features a first transparent electrode divided into at least two regions and a second transparent electrode insulated from the first. A data voltage is applied to the second transparent electrode in one region and to the first transparent electrode in another, ensuring that the sum of the voltages applied to the pixel region equals zero.
Career Highlights
Chul Ha Kim is currently employed at BOE Hydis Technology Co., Ltd., where he continues to innovate in the field of display technology. His work has significantly impacted the development of more efficient and effective LCDs.
Collaborations
He has collaborated with notable coworkers, including Hee Chul Jung and Pyung Soo Ha, contributing to advancements in their shared field of expertise.
Conclusion
Chul Ha Kim