• Title/Summary/Keyword: Data line sharing

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Data Line Sharing in TFT-LCD with the Integrated Gate Driver

  • Park, Kwon-Shik;Cho, Nam-Wook;Chun, Min-Doo;Moon, Tae-Woong;Jang, Yong-Ho;Kim, Hea-Yeol;Kim, Binn;Choi, Seung-Chan;Cho, Hyung-Nyuck;Ryoo, Chang-Il;Yoon, Soo-Young;Kim, Chang-Dong;Kang, In-Byeong
    • 한국정보디스플레이학회:학술대회논문집
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    • 2008.10a
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    • pp.1009-1012
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    • 2008
  • We have succeeded in producing the world $1^{st}$ TFT LCD panel adapting the data line sharing method. In the data line sharing structure, two neighboring pixels share one data line. We also adapted time shared data driving with a-Si TFT based circuit integration technology of LG Display's own. By using these technologies, we can reduce the number of source driver ICs by half, compared to that of the existing gate driver integrated TFT LCD panel.

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A Study of Software Product Line Engineering application for Data Link Software

  • Kim, Jin-Woo;Lee, Woo-Sin;Kim, Hack-Joon;Jin, So-Yeon;Jo, Se-Hyeon
    • Journal of the Korea Society of Computer and Information
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    • v.23 no.12
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    • pp.65-72
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    • 2018
  • In this paper, we have studied how to reuse common data link software by applying software product line engineering. Existing common data link software performed different stages of design, implementation, and testing without sharing the accumulated knowledge of different developers. In this situation, developers agreed that sharing the assets of each project and reusing the previously developed software would save human and time costs. Even with the initial difficulties, the common Data Link is a continually proposed project in the defense industry, so we decided to build a product line. The common data link software can be divided into two domains. Among them, the initial feature model for the GUI software was constructed, and the following procedure was studied. Through this, we propose a plan to build a product line for core assets and reuse them in newly developed projects.

A Novel data line sharing method for high pixel density LCoS microdisplays

  • Song, Yu-Long;Ling, Zhihua
    • 한국정보디스플레이학회:학술대회논문집
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    • 2006.08a
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    • pp.49-51
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    • 2006
  • A new data line reduction driving method was developed for high pixel density LCoS microdisplays. Its pixel structures and its corresponding gate line waveform were proposed, too. This idea can fulfill the increasing demand for higher resolution LCoS. In this method, no additional AC power is dissipated, and no more horizontal line time is needed. So this method can be applied to the high resolution microdisplay devices. It prefers being applied to the reflective liquid crystal on silicon microdisplays because of the pixel structure asymmetry and PMOS transistor switches used.

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A Data-line Sharing Method for Lower Cost and Lower Power in TFT-LCDs

  • Park, Haeng-Won;Moon, Seung-Hwan;Kang, Nam-Soo;Lee, Sung-Yung;Park, Jin-Hyuk;Kim, Sang-Soo
    • 한국정보디스플레이학회:학술대회논문집
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    • 2005.07a
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    • pp.531-534
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    • 2005
  • This paper presents a new data line sharing technique for TFT-LCD panels. This technique reduces the number of data driver IC's to half by having two adjacent pixels share the same data line. This in turn doubles the number of gate lines, which are integrated directly on the glass substrate of amorphous silicon for further cost reduction and more compactness. The proposed technique with new pixel array structure was applied to 15.4 inch WXGA TFT-LCD panels and has proven that the number of driver IC's were halved with nearly 41% circuit cost reduction and 5.3% reduction in power consumption without degrading the image quality.

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Optimization of the Data Line Sharing Panel Design for the High Resolution and Large Size LCD

  • Lee, Do-Young;Ji, Ju-Hyun;Koo, Hoe-Woo;Yoo, Ki-Taek;Cho, Suk-Ho;Song, Jae-Hun;Yoo, Sung-Rok;Kim, Jae-Sang;Park, Cheol-Woo;Park, Jae-Hong;Lee, Kyung-Ho
    • 한국정보디스플레이학회:학술대회논문집
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    • 2009.10a
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    • pp.1247-1249
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    • 2009
  • We have successfully developed the 22 inch WSXGA+ DLS(Data Line Sharing) Panel driving in 75 Hz. In the large size and high resolution panels, it is very difficult to design the DLS Panels without failure because of the very short charging time and the large signal delay. So, we first investigated the charging order to find the most adequate charging type to the large size and high resolution panels. And then, we optimized the design of DLS in terms of improving the charging properties using the technologies of the Delta-doping TFTs, Cu metal electrodes and optimization of panel design value and the circuit signal timing.

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Adaptive Counting Line Detection for Traffic Analysis in CCTV Videos (CCTV영상 내 교통량 분석을 위한 적응적 계수선 검출 방법)

  • Jung, Hyeonseok;Lim, Seokjae;Lee, Ryong;Park, Minwoo;Lee, Sang-Hwan;Kim, Wonjun
    • Journal of Broadcast Engineering
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    • v.25 no.1
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    • pp.48-57
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    • 2020
  • Recently, with the rapid development of image recognition technology, the demand for object analysis in road CCTV videos is increasing. In this paper, we propose a method that can adaptively find the counting line for traffic analysis in road CCTV videos. First, vehicles on the road are detected, and the corresponding positions of the detected vehicles are modeled as the two-dimensional pointwise Gaussian map. The paths of vehicles are estimated by accumulating pointwise Gaussian maps on successive video frames. Then, we apply clustering and linear regression to the accumulated Gaussian map to find the principal direction of the road, which is highly relevant to the counting line. Experimental results show that the proposed method for detecting the counting line is effective in various situations.

Empirical study of the intention of knowledge hiding and knowledge transfer -A comparative analysis of front-line workers and office workers in a public enterprise- (지식은폐의도와 지식전이의도의 영향요인에 관한 실증분석 -공기업 현장근로자와 사무실근로자의 비교분석-)

  • Kim, Nam Yeol;Jeon, Hyeon Gyu;Kim, Min Yong
    • Knowledge Management Research
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    • v.18 no.3
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    • pp.37-62
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    • 2017
  • Most of the managers know that knowledge sharing has to be precede to create knowledge which has competitive advantage of organizations. Until now the study on knowledge management placed emphasis on knowledge creation and knowledge sharing but there is few study on knowledge hiding. This study investigates the factors implicate on knowledge hiding intention and knowledge transfer intention of front-line workers and office workers and the implication on job performance of knowledge hiding intention and knowledge transfer intention. We collected sample data from 100 front-line workers and 250 office workers and verified hypotheses using Multiple Linear Regression. The result described that factors affect active and passive knowledge hiding intentions and factors affect knowledge hiding intentions of front-line workers and office workers are different.

Influence of National Culture on Staff Preferences to Knowledge Sharing Practices: the Case of Saudi Arabia

  • Al Hazmi, Hassan S.J.;Mohamed, Sherif
    • International conference on construction engineering and project management
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    • 2015.10a
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    • pp.454-458
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    • 2015
  • A number of practices for sharing knowledge has been recommended in the literature. These practices, however, are considered to be applicable, universally. This assumption is challenged by this paper which empirically explores the relationship between national culture and knowledge sharing practices in the context of procuring educational buildings in Saudi Arabia. The paper reports on a research study with the aim to identify whether national culture dimensions could be significant variables that impact upon staff preferences in relation to project knowledge sharing practices. The paper critically reviews the literature to identify appropriate measures for knowledge sharing practices. It explores the means by which public sectors professional exchange project knowledge; evaluates policies and level of technical support needed to facilitate knowledge sharing, then proceeds to how employees perceive the benefits they will gain by practicing project knowledge sharing, and their role in this process. The paper tests the relationships among the research constructs based on data collected from 115 project managers responsible for the procurement of educational buildings in Saudi Arabia. The paper provides empirical evidence that the national culture has a significant influence on staff preferences. In light of the research findings the paper concludes with practical recommendations for project knowledge sharing practices that are in line with staff preferences and their cultural orientation. The recommendations should facilitate a more effective application of knowledge sharing practices.

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A Study of improving regenerative energy utilization in Urban DC railway systems through sharing substations (철도 변전소 공유를 통한 직류 도시철도 시스템 회생에너지 이용률 향상 방안 연구)

  • Jung, Seung-Min;Lee, Han-Sang;Byun, Gil-Sung;Jang, Gil-Soo;Kwon, Sae-Hyuk;Kim, Hyung-Chul
    • Proceedings of the KIEE Conference
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    • 2011.07a
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    • pp.2181-2182
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    • 2011
  • This paper deals with power integration of large urban railway systems for improvement of regenerative energy utilization. The main idea of this paper is that the integration of railway power systems will increase efficiency through sharing regenerative energy. To verify the effects of this system, case studies for Seoul Metro Line has been performed. Where railway data of Seoul Subway Line 5 and Line 7 are used. In this work, the integrated railway system is modelled using Compaq Visual Fortran.

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Voltage Feedback AMOLED Display Driving Circuit for Driving TFT Deviation Compensation (구동 TFT 편차 보상을 위한 전압 피드백 AMOLED 디스플레이 구동 회로)

  • Ki Sung Sohn;Yong Soo Cho;Sang Hee Son
    • Journal of the Semiconductor & Display Technology
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    • v.22 no.4
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    • pp.161-165
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    • 2023
  • This paper designed a voltage feedback driving circuit to compensate for the characteristic deviation of the Active Matrix Organic Light Emitting Diode driving Thin Film Transistor. This paper describes a stable and fast circuit by applying charge sharing and polar stabilization methods. A 12-inch Organic Light Emitting Diode with a Double Wide Ultra eXtended Graphics Array resolution creates a screen distortion problem for line parasitism, and charge sharing and polar stabilization structures were applied to solve the problem. By applying Charge Sharing, all data lines are shorted at the same time and quickly positioned as the average voltage to advance the compensated change time of the gate voltage in the next operation period. A buffer circuit and a current pass circuit were added to lower the Amplifier resistance connected to the line as a polar stabilization method. The advantage of suppressing the Ringing of the driving Thin Film Transistor can be obtained by increasing the stability. As a result, a circuit was designed to supply a stable current to the Organic Light Emitting Diode even if the characteristic deviation of the driving Thin Film Transistor occurs.

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