• YAKHAK HOEJI
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• v.40 no.3
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• pp.343-346
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• 1996

The influence of LB20304a, a new fluoroquinolone antibiotic agent, on microflora of caecum in mice was compared with those of ciprofloxacin and piperacillin after administration of drugs for 5 days. Selective medium (CCFMA) was used for the isolation of Clostridium difficile from the specimens of mouse caecum. The emergence of C. difficile in mouse caecum induced by LB20304a was lower than that by ciprofloxacin or piperacillin at day 1 and day 7 after completing administration of drugs.

• 한국정보디스플레이학회:학술대회논문집
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• 2007.08a
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• pp.133-136
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• 2007

IGZO TFTs were fabricated by conventional photolithography and wet-etching processes on metal substrates for the flexible display. The characteristics of TFTs on metal substrates were comparable to those of TFTs on glass substrates. Moreover, AM-OLED panels based on IGZO TFT arrays on metal substrates were successfully driven, for the first time.

• 한국정보디스플레이학회:학술대회논문집
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• 2008.10a
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• pp.867-869
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• 2008

We have investigated the effects of hydrogen plasma treatment by PECVD (Plasma Enhanced Chemical Vapor Deposition) in the back channel region, the method for reducing the off state leakage current which increases with the short channel length of a-Si:H TFTs. To improve the off current characteristics, we analyzed the hydrogen plasma treatment with various RF power and plasma treatment times of PECVD. As the result of hydrogen plasma treatment in the back channel region it was remarkably reduced the off current level of 2um channel length TFT.

• Journal of the Korean Geophysical Society
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• v.5 no.1
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• pp.1-8
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• 2002

The attenuation study of Lg waves is very important in the southeast Korea because the Yangsan fault, believed to be active faults, lied in the industrialized region of the area. By applying the reversed two-station method for the vertical component of the velocity seismogram, we first estimated the Lg attenuation coefficient in this area: $${＼gamma}=(0.009±0.0005)＼;f^{0.06+0.03}$$ between 0.87 and 10 Hz. The ${Q_{Lg}}^{-1}$ values converted from ${＼gamma}$ prove to be higher than those of S-waves, and show the highest values in the world for the high frequency part around 10 Hz. This high attenuation of Lg may be related to a block of Lg propagation near the East Sea and/or an undulately thinning crust of the studied area.

• 한국정보디스플레이학회:학술대회논문집
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• 2008.10a
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• pp.753-756
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• 2008

We analyzed the problem of the typical definition of the viewing angle, where the contrast ratio is higher than 1:10 and suggest the new definition of the viewing angle by considering the contrast ratio, color shift, luminance and gamma shift in the viewing direction all together.

• Venture DIGEST
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• s.130
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• pp.34-35
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• 2009

LG디스플레이의 생산기술 전문가와 협력사의 기술자들이 태스크포스팀을 만들고 LG디스플레이의 생산기술 노하우를 협력사의 생산라인에 적용한다. 단편적 지원이 아닌 제품을 잘 생산하는 기술을 전수해서 협력사가 생산성과 품질, 원가경쟁력을 갖추도록 한다. 이들 협력사들이 최고의 경쟁력을 갖추면 그것이 곧 LG디스플레이의 경쟁력이다. LG디스플레이가 2007년부터 시작한 "고기 잘 잡는 법" 방식의 협력사 상생 모델 실험이 성과를 나타내면서 협력사의 수익성 향상, LG디스플레이의 시장경쟁력 강화로 이어져 성공적인 '동반성장' 상생 모델로 평가 받고 있다.

• 한국정보디스플레이학회:학술대회논문집
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• 2004.08a
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• pp.799-802
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• 2004

In this paper, the active backlight control technology with data processing algorithm was developed in order to improve image quality for IPS-mode LCD-TV applications. The image blinking problem caused by repeatedly abrupt change of the backlight luminance was solved by algorithms-Fba(Flexible Boundary algorithm) and Cfa(Cumulative Feedback algorithm)-and the optimized number and space of backlight dimming steps based on perception. In the IPS-mode 42" TFT-LCD panel, the dynamic contrast ratio can be more than twice the typical level by means of lower block luminance and higher white luminance. Additionally, Power consumption and LCD temperature was decreased.

• 한국정보디스플레이학회:학술대회논문집
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• 2004.08a
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• pp.1258-1261
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• 2004

Degradation phenomenon in the low-temperature polysilicon (LTPS) thin-film transistors (TFTs) with different junction structures was investigated. A gate-overlapped lightly doped drain (GOLDD) structure showed better hot-carrier stress (HCS) stability than a conventional LDD one. On the other hand, high drain current stress (HDCS) at $V_{gs}$ = $V_{ds}$ conditions caused much severe device degradation in the GOLDD structure because of its higher current level resulting in the higher applied power. It is suggested that self-heating-induced mobility degradation in the GOLDD TFFs be suppressed for using this structure in short-channel devices.

• 한국정보디스플레이학회:학술대회논문집
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• 2008.10a
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• pp.247-249
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• 2008

Low Temperature a-Si:H TFT on stainless steel substrate has been developed for the flexible electrophoretic display. Stability of low temperature a-Si:H TFT is more important point than its initial device characteristics. Thus, we have studied device characteristics of low temperature a-Si:H TFT in terms of stability for driving electrophoretic display.

• 한국정보디스플레이학회:학술대회논문집
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• 2006.08a
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• pp.1311-1313
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• 2006

Stereoscopic/autostereoscopic systems have been developed in order to express true 3D images, but have never had great success in the practical use. In order to apply 3D display to promising applications such as advertisements and games, we've developed a 42" 2D/3D switchable display. It has characteristics that don't require special glasses for 3D images, use multi-view technology for improving 3D viewing characteristics, and has a 2D/3D switching function to express dynamic 3D contents as well as conventional 2D contents.