Sun-jung Choi

Title: Sun-jung Choi: Innovator in Display Technology

Introduction

Sun-jung Choi is a prominent inventor based in Suwon, South Korea. He has made significant contributions to the field of display technology, holding a total of 4 patents. His work focuses on improving the performance and quality of image display units.

Latest Patents

One of his latest patents is a method for displaying gray scales in image display units. This innovative gray scale display method involves converting the binary code of conventional picture data into an optimal code based on display system characteristics. The gray levels of an image are error-diffused and displayed using frame rate modulation. To minimize the likelihood of saturation of the gray levels, the maximum value of data displayed according to the optimal code is greater than or equal to the maximum value of the picture data displayed according to a conventional binary code. Additionally, the number of adjacent gray levels is minimized, resulting in reduced driving voltage for driving electrodes in a display device and decreased picture cross talk.

Another significant patent by Choi is a method for driving a liquid crystal display (LCD). This method improves the selection ratio of a scanning electrode while considerably reducing voltage magnitude variation. The scanning electrode driving signals overlap according to an orthogonal function and are sequentially applied to adjacent scanning electrodes. The data electrode driving signals change in their voltage level by maintaining an intermediate voltage level during the overlap interval. This innovative approach enhances the selection ratio of scanning electrodes and minimizes the generation of waveform differentials, thereby reducing crosstalk in the displayed image.

Career Highlights

Sun-jung Choi is currently employed at Samsung Display Devices Co., Ltd., where he continues to develop cutting-edge technologies in display systems. His expertise and innovative approaches have positioned him as a key figure in the advancement of display technology.

Collaborations

Choi has collaborated with notable colleagues, including Cheol-woo Park and Choon-yul Oh, contributing to various projects that enhance the capabilities of display devices.

Conclusion

Sun-jung Choi's contributions to display technology through his patents and work at Samsung Display Devices Co., Ltd. highlight his role as an influential inventor in the field. His innovative methods for improving image display quality continue to shape the future of display technology.