• 한국정보디스플레이학회:학술대회논문집
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• 한국정보디스플레이학회 2007년도 7th International Meeting on Information Display 제7권2호
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• pp.1323-1326
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• 2007

A new driving method employing 2-dimensional spatial averaging is proposed. This method successfully eliminates the vertical line artifact caused by luminance difference from unbalanced charging voltage between polarities. This spatial averaging method can secure charging time, minimize driver heating, and achieve higher display quality.

• 한국정보디스플레이학회:학술대회논문집
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• 한국정보디스플레이학회 2008년도 International Meeting on Information Display
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• pp.1156-1159
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• 2008

Local dimming driving has advantages in reducing power consumption and improving contrast ratio(CR). In an LED backlight unit(BLU), many small LED blocks are implemented in 2-dimmensional space, and luminance of the blocks is controlled by a local dimming algorithm. However, such a BLU can induce various recognizable artifacts. A new novel algorithm is proposed for exact block luminance calculation to correct local dimming artifacts. Also we discuss modified low-gray-level dimming to achieve much aggressive power saving in a local dimming BLU system.

• 한국정보디스플레이학회:학술대회논문집
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• 한국정보디스플레이학회 2008년도 International Meeting on Information Display
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• pp.208-210
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• 2008

We have developed a LCD Panel that form storage capacitance for pixels between pixel electrode of bottom glass and common electrode of top glass. This method could make higher transmission and higher production yield than before by removing storage electrode line and capacitance on the bottom glass by simplifying bottom pixel structure.

• 한국정보디스플레이학회:학술대회논문집
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• 한국정보디스플레이학회 2008년도 International Meeting on Information Display
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• pp.295-298
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• 2008

We developed a novel PVA pixel design for mobile application with excellent off-axis image quality and optical performance by introducing Active Level Shift technology and optimizing pixel structure. Our new pixel design enables better off-axis image quality without sacrificing other optical properties compared with a conventional mPVA structure.

• 한국정보디스플레이학회:학술대회논문집
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• 한국정보디스플레이학회 2007년도 7th International Meeting on Information Display 제7권1호
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• pp.818-821
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• 2007

Two new impulsive driving technologies for use in 120Hz LCD panels are proposed to improve moving picture quality. One technology generates the dark frame using an adder and a shifter simply without using any LUTs. The other is a backlight flashing method designed to avoid ghost images. Using the PBET metric, measured MPRT values were 10.8ms and 4.4ms, respectively.

• 한국정보디스플레이학회:학술대회논문집
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• 한국정보디스플레이학회 2007년도 7th International Meeting on Information Display 제7권1호
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• pp.413-416
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• 2007

Motion-estimation/motion-compensation (ME/MC) provides superior motion picture quality but its huge computation load results in high cost. Impulsive driving is a cost-effective solution but it suffers from large flicker and brightness loss. Motion compensated impulsive driving technology has been developed to achieve high motion picture quality in a cost-effective implementation by combining ME/MC and impulsive driving. The key idea is to apply ME/MC or impulsive driving selectively according to the motion vector distribution of the incoming image sequence. In this paper, the description of the algorithm and the experimental results are provided.

• 한국정보디스플레이학회:학술대회논문집
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• 한국정보디스플레이학회 2007년도 7th International Meeting on Information Display 제7권1호
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• pp.403-406
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• 2007

A New S-PVA which is named as charge-shared super PVA (CS S-PVA) LCD mode is proposed. CS SPVA controls the voltage ratio of low pixel by sharing system between low pixel and control cap, resulting in improved off-axis image quality and transmittance increase without any side effects. Moreover, the new S-PVA LCD mode is free of image-sticking. Operating schemes and display performance of CS S-PVA are presented.

• 한국정보디스플레이학회:학술대회논문집
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• 한국정보디스플레이학회 2006년도 6th International Meeting on Information Display
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• pp.1701-1703
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• 2006

Here we describe a novel driving scheme in the form of negative AC bias stress (NAC) to compensate shift in the threshold voltage for hydrogenated amorphous silicon (${\alpha}$-Si:H) thin film transistor (TFT) for AMOLED applications. This scheme preserves the threshold voltage shift of ${\alpha}$-Si:H TFT for infinitely long duration of time(>30,000 hours) and thereby overall performance, without using any additional TFTs for compensation. We briefly describe about the possible driving schemes in order to implement for real time AMOLED applications. We attribute most of the results based on concept of plugging holes and electrons across the interface of the gate insulator in a controlled manner.

• 벤처창업연구
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• 제2권1호
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• pp.65-82
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• 2007

본 연구는 전자상거래 관련 선행연구를 통하여 분석 프레임워크를 제시하고, 이를 창업보육센터 입주기업 및 매니저, 전자상거래 사이트인 코비앙(Cobian) 운영업체와 협회의 실무담당자들과의 설문 및 인터뷰에 적용하여 입주기업들의 전자상거래 활성화 방안 세 가지(대형 전자상거래 사이트화, 전자 카탈로그 사이트화, 전자상거래 기능 개선 및 오프라인 e-biz 활성화)를 제시하였다. 제시한 방안들은 코비앙의 문제점으로 지적된 낮은 인지도 향상 및 기업 간 원활한 정보 교환 및 연계를 위하여 다각도로 분석되었으며, 무조건적인 투자뿐 아니라 효율성 측면 또한 강조함으로써 창업보육센터 본연의 핵심 기능을 발휘할 수 있는 방안을 제시하였다. 아울러 코비앙 뿐 아니라 중소기업의 전자상거래시 나타날 수 있는 문제점들을 해결하기 위한 현실적인 방안들을 제시하여 각 단계별 구체적인 내용을 제시하였다.

• 한국IT서비스학회지
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• 제8권1호
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• pp.29-45
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• 2009

In this research, a model to measure the correlation between the performance of customer contact center and the business performance is developed using the well-known model, the market damage model of TARP. Three hypotheses are suggested and verified using real customer profit data and customer access data of the Industrial bank of Korea. As a result of this research, we know that there is a positive relation between increase of business profit and contact experience of customers to customer contact center. Also, customer satisfaction level for customer contact center contact experience is positively correlated with increase of business profit of the company. However, we could not find a meaningful correlation result between number of contacts to customer contact center and the business profit. Although this study is based on a particular one company data, the analyzation framework can be applicable to other banking companies for showing relations between performance of customer contact center and business profit of the company.