Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Keum-Nam Kim"'
Autor:
Keum-Nam Kim, Dong-Wook Park, Byung-hee Kim, Yong-Sung Park, Deok-Young Choi, Sang-soo Kim, Bo-Yong Chung
Publikováno v:
SID Symposium Digest of Technical Papers. 42:268-271
A driving method has been developed for a 2D-3D switchable AMOLED using progressive emission PE or simultaneous emission SE. The proposed method is implemented by selecting PE mode for 2D to improve light emission ratio and SE mode for 3D to reduce l
Autor:
Byung-hee Kim, Brian H. Berkeley, Byoungdeog Choi, Yong-Sung Park, Sang-soo Kim, Keum-Nam Kim, Young-In Hwang
Publikováno v:
SID Symposium Digest of Technical Papers. 42:272-275
Stereoscopic 3D displays are generally operated at 240Hz in order to fully separate left eye and right eye images. New low frequency driving methods are proposed for 3D displays. In addition to reducing driving frequency, the new driving methods can
Autor:
Byung-hee Kim, Keum-Nam Kim, Seong-Il Park, Sangmoo Choi, Sang-soo Kim, Dong-Wook Park, Kyung-hoon Chung, Bo-Yong Chung
Publikováno v:
SID Symposium Digest of Technical Papers. 42:349-352
Simultaneous Emission with Active Voltage control (SEAV) is a strong candidate for crosstalk-free driving of 3D Active Matrix Organic Light Emitting Diode (AMOLED) displays. A gate driver for a SEAV 3D AMOLED panel needs two operating modes: the simu
Autor:
Sangmoo Choi, Keum-Nam Kim, Inhwan Lee, Do-Hyung Ryu, Oh-Kyong Kwon, Hye-Dong Kim, Hai-Jung In, Kyonghwan Oh
Publikováno v:
IEEE Transactions on Electron Devices. 57:3012-3019
An advanced method for externally compensating the nonuniform electrical characteristics of polycrystalline silicon thin-film transistors (TFTs) and the degradation of organic light-emitting diode (OLED) devices is proposed, and the method is verifie
Autor:
Keum-Nam Kim, Jong-Hyun Choi, Ho Kyoon Chung, Do-youb Kim, Chul-Kyu Kang, Oh-Kyong Kwon, Yojiro Matsueda, Hye-Dong Kim, Yong-Sung Park
Publikováno v:
ISSCC
An 8b source driver for 2.0 inch QVGA active-matrix OLEDs is fabricated using LTPS TFTs. This driver uses an 8b DAC that is separated into two parts, a 1-to-3 DEMUX, and a pre-charge method. This scheme reduces the source driver size by 40%. The maxi
Publikováno v:
Japanese Journal of Applied Physics. 50:03CC04
In this paper, the conventional voltage drop compensation methods are reviewed and the novel design and driving scheme, the advanced power de-coupled (aPDC) driving method, is proposed to effectively compensate the voltage IR drop of active matrix li
Autor:
Byung-hee Kim, Keum-Nam Kim, Chul-Kyu Kang, Dong-Wook Park, Yong-Sung Park, Bo-Yong Chung, Sang-soo Kim, Kyung-hoon Chung
Publikováno v:
Journal of the Society for Information Display. 19:329
— Large-sized active-matrix organic light-emitting diode (AMOLED) displays require high-frame-rate driving technology to achieve high-quality 3-D images. However, higher-frame-rate driving decreases the time available for compensating Vth in the pi
Autor:
Keum Nam Kim, Kyu Hwan Hwang, Jong H. Lee, Jae H. Ha, Seok Gyu Yoon, Young Woo Song, Sung C. Kim
Publikováno v:
SID Symposium Digest of Technical Papers. 41:144
14.1” qFHD quarter Full High Definition Transparent Active Matrix Organic Light Emitting Display AM OLED was developed with the well known and reliable technology based on LTPS Low Temperature Poly Silicon backplane. The key concept of the transpar
Publikováno v:
Journal of the Society for Information Display. 18:228
— To comparatively evaluate various driving methods of an electronic display in respect to image sticking, a consistent and reliable quantification method is required. For proper evaluation, the entire area of a display is often monitored by using
53.3: Redundant Pixel Line Insertion for Laser Crystallization Based Large Size LTPS AMOLED Displays
Autor:
Moo‐jin Kim, Chul-Kyu Kang, Sangmoo Choi, Sung-Won Chung, Mu‐hyun Kim, Byung-hee Kim, Keum-Nam Kim
Publikováno v:
SID Symposium Digest of Technical Papers. 41:798
With an excimer laser annealing (ELA) process, maximum display size is limited by the laser beam length because performance variations of the transistors in the overlapped regions cannot be sufficiently compensated to remove the brightness non-unifor