Chang Hun Cho

Title: Chang Hun Cho - Innovator in Display Technology

Introduction

Chang Hun Cho is a prominent inventor based in Gumi-si, South Korea. He has made significant contributions to the field of display technology, holding a total of 4 patents. His work focuses on enhancing the performance and efficiency of display devices, particularly in liquid crystal displays.

Latest Patents

Among his latest patents is a display device and method of precharging based on gamma values. This invention includes a display panel designed to showcase images, a data driver that supplies data voltage to the display panel, and a precharge circuit that performs a precharging operation. The timing controller manages the data driver, ensuring that the charge circuit generates a precharge voltage based on a precharge signal supplied during the horizontal blank period. It is also controlled to either output or not output the precharge voltage based on a precharge selection signal.

Another notable patent is the apparatus and method of driving data for liquid crystal display devices. This invention aims to minimize electromagnetic interference (EMI) noise by reducing the output peak current of a data driver. The apparatus consists of a timing controller that supplies a reference source output enable signal, a delay circuit that delays this signal to provide multiple source output enable signals with varying delay times, and a data driver that divides and drives data lines of a liquid crystal panel into several data blocks. This design disperses the data output timing of the data integrated circuits in response to the source output enable signals.

Career Highlights

Chang Hun Cho is currently employed at LG Display Co., Ltd., where he continues to innovate in display technology. His work has significantly impacted the efficiency and quality of display devices, making them more reliable and effective for consumers.

Collaborations

He has collaborated with notable colleagues such as Jin Cheol Hong and Sung Chul Ha, contributing to advancements in their shared field of expertise.

Conclusion

Chang Hun Cho is a key figure in the development of display technologies, with a focus on improving the functionality and performance of liquid crystal displays. His innovative patents and contributions to LG Display Co., Ltd. highlight his commitment to advancing technology in this vital industry.