In Byeong Kang

LG Display

In Byeong Kang obtained his PhD degree in electronics engineering from University of South Australia in 1998. Dr. Kang has contributed considerably to information display technologies, starting as a research engineer for LCD development at LG Electronics in 1991. Currently, he is serving as Chief Technology Officer at LG Display. In 2006, he led to successful development and commercialization of IPS mode and Cu interconnect technologies, required for high quality & large-sized LCD TV, and the world’s first 100” LCD TV was unveiled. He is leading innovation of key technologies for FPR 3D, oxide TFT backplane for large OLED TV and advanced future display technologies, including flexible and transparent displays. In recognition of his technological innovation contributions, in 2013 Dr. Kang was awarded with the Stone Tower Order by the government of Korea and the Special Recognition Award by SID (Society of Information Display).

2chapters authored

Chapters authored

Advanced Technologies for Large-Sized OLED Display

By Chang Wook Han, Hong-Seok Choi, Chanki Ha, Hongjae Shin, Hyun Chul Choi and In Byeong Kang

Five years have passed, since the first 55″ full high-definition (FHD) OLED TV fabricated on Gen 8.5 glass was successfully launched into the TV market. For the time being, the size of OLED TV became diverse from 55″ to 77″, and the resolution was doubled into ultrahigh definition (UHD). The brightness and color gamut were enhanced, while the lower power consumption was realized. Utmost picture quality and slim form factor of OLED TV as well as the improved performance have made OLED TV recognized as the best premium TV. In this chapter, we describe the recent progress in three key technologies, which enable such an enhancement of performance in OLED TV, i.e., oxide thin-film transistor (TFT) and white organic light-emitting diode (WOLED), compensation circuit, and method to compensate the nonuniformity of oxide TFTs, OLED devices, and luminance.

Part of the book: Green Electronics

Picture Quality and Sound Quality of OLED TVs

By Jang Jin Yoo, Dong Woo Kang, Jang Un Kwon, Sunho Park, Jeong Sub Hwang, Don Gyou Lee, Bu Yeol Lee and In Byeong Kang

Unlike the past when cathode-ray tube (CRT) dominated display industry, many different types of flat panel displays (FPDs) are now leading the industry. Of these, organic light-emitting diode (OLED) display has recently become a next-generation display since this display is recognised as having advantages over other competing technologies in picture quality and form factor. With major attributes of picture quality considered, a series of evaluations based on objective measures was performed with an OLED TV compared to an LCD TV. OLED TV outperformed LCD TV 100 times in black, 20 times in colour contrast, 30% in dynamic range coverage, 50 times in local contrast and 20 times in viewing angle. In addition, sound quality of the OLED TV was assessed using both objective and subjective evaluation methods compared to conventional TV speakers since OLED panel speaker technology was recently commercialised. The OLED panel speaker showed better performance both in objective and subjective methods.

Part of the book: Luminescence

In Byeong Kang

Chapters authored

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