• Journal of Information Display
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• v.3 no.4
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• pp.1-3
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• 2002

The antiferroelectric liquid crystal display (AFLCD) is a unique display that can at demonstrate a moving image perfectly the passive matrix driving scheme. We optimised driving the waveform and introduced a dual-driving method. Also, by improving this driving method and using line inversion method, we realize the AFLC display of high image quality with $160(RGB){\times}240$, 32768 colors, crosstalk free and flicker free contrast ratio is greater than 60:1, and the brightness is above 200 $cd/m^2$.

• 한국정보디스플레이학회:학술대회논문집
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• 2002.08a
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• pp.835-837
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• 2002

The 17" Backlight Unit (BLU) employing twelve EEFLs (External Electrode Fluorescent Lamp) has been developed for LCD-TV The characteristics of the EEFL BLU without dual brightness enhancement film (DBEF) were equivalent to those of CCFL (Cold cathode Fluorescent Lamp) BLU employing eight CCFLs with DBEF. Luminance, power consumption and uniformity were 12,000nits, 32watt and 80%, respectively. The inverter of EEFL Backlight Unit is composed of 2 transformers and driven by the sinusoidal waveform.

• Proceedings of the KSRS Conference
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• 2004.10a
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• pp.326-326
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• 2004

• 한국생물공학회:학술대회논문집
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• 2005.10a
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• pp.808-809
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• 2005

• Proceedings of the Korean Ceranic Society Conference
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• 2003.10a
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• pp.200.1-200
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• 2003

• Proceedings of the Korean Society of Crop Science Conference
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• 2007.11a
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• pp.226.2-226.2
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• 2007

• Proceedings of the Materials Research Society of Korea Conference
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• 1998.08a
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• pp.99.4-99
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• 1998

• Journal of the Korean Operations Research and Management Science Society
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• v.19 no.1
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• pp.123-144
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• 1994

This Study has empirically examined the relationship between the role of R & D project leaders and their team performance using data from 87 project teams in 6 R & d organizations. The results reveal that : 1) R & D project leaders play five different roles for performing their jobs-strategic plannar, team builder, gatekeeper, expert and champion : 2) all but the champion role of leaders are positively associated with project team performance unless they have too short team tenure to materialize their role efforts : 3) However, the relationship between the role of leaders and project team performance varies according to characteristics of their team and project tasks. More specifically, it becomes more important for leaders to focus on gatekeeping and championing roles as their team gats older. Team building role of leaders is more important for higher performance of relatively certain R & D projects, while for uncertain R & D projects gatekeeping role appears to be more important.

• 제어로봇시스템학회:학술대회논문집
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• 1993.10a
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• pp.1136-1140
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• 1993

A communication system in an industrial robot controlle is proposed for the implementation of an efficient FA system. Different from existing industrial robot controllers which use binary I/O for the communication with external systems, the robot controllers having the proposed communication system can exchange various information with external systems. Furthermore, the robot motion and the communication with external systems can be performed simultaneously. The structure of hardware and software in the communication system is explained to show how to acheive these two operations simultaneously.

• JSTS:Journal of Semiconductor Technology and Science
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• v.6 no.1
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• pp.30-37
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• 2006

In this article, we evaluated the structural merits and the validity of a partially insulated MOSFET (PiFET) through the fabrication of prototype transistors and an 80 nm 512M DDR DRAM with partially-insulated cell array transistors (PiCATs). The PiFETs showed the outstanding short channel effect immunity and off-current characteristics over the conventional MOSFET, resulting from self-induced halo region, self-limiting SID shallow junction, and reduced junction area due to PiOX layer formation. The DRAM with PiCATs also showed excellent data retention time. Thus, the PiFET can be a promising alternative for ultimate scaling of planar MOSFET.