• 제목/요약/키워드: team

검색결과 16,431건 처리시간 0.044초

Top gate ZnO-TFT driving AM-OLED fabricated on a plastic substrate

  • Hwang, Chi-Sun;Kopark, Sang-Hee;Byun, Chun-Won;Ryu, Min-Ki;Yang, Shin-Hyuk;Lee, Jeong-Ik;Chung, Sung-Mook;Kim, Gi-Heon;Kang, Seung-Youl;Chu, Hye-Yong
    • 한국정보디스플레이학회:학술대회논문집
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    • 한국정보디스플레이학회 2008년도 International Meeting on Information Display
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    • pp.1466-1469
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    • 2008
  • We have fabricated 2.5 inch QQCIF AM-OLED panel driven by ZnO-TFT on a plastic substrate for the first time. The number of photo mask for the whole panel process was 5 and the TFT structure was top gate with active protection layer as a first gate insulator. Optimizing the process for the substrate buffer layer, active layer, ZnO protection layer, and gate insulator was key factor to achieve the TFT performance enough to drive OLED. The ZnO TFT has mobility of $5.4\;cm^2/V.s$, turn on voltage of -6.8 V, sub-threshold swing of 0.39 V/decade, and on/off ratio of $1.7{\times}10^9$. Although whole process temperature is below $150^{\circ}C$ to be suitable for the plastic substrate, performance of ZnO TFT was comparable to that fabricated at higher temperature on the glass.

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Recent Trend of Low Temperature Poly Silicon Technologies in TFT-LCD

  • Kim, C.W.;Kim, H.J.;Lee, H.G.;Min, H.G.;Hwang, J.W.;Cho, S.W.;Ryu, C.K.;Lee, C.;Kang, M.K.;Chung, K.H.
    • 한국정보디스플레이학회:학술대회논문집
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    • 한국정보디스플레이학회 2002년도 International Meeting on Information Display
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    • pp.46-49
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    • 2002
  • Recent trends of low-temperature polycrystalline Si (LTPS) TFT technologies are presented. Characteristics of LTPS TFT processes are compared with those of a-Si TFT's. In order to compete with well-established a-Si TFT-LCD technology, LTPS process has to be as simple as possible. One of the most critical processes, recrystallization of a-Si thin films, could be the process for the differentiation of LTPS technology. Along with these technical reviews, a recent development of the 5.0-inch LTPS TFT-LCD is presented. In order to achieve high-performance display characteristics and save the power consumption, the transflective mode is adopted. The 5.0-inch display with 186 pixel-per-inch, high-resolution LCD was measured to be 10% for the reflectance and 70:1 for the contrast ratio. This display is designed for a high information content hand-held PC (HHPC) application.

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A Protective Layer on the Active Layer of Al-Zn-Sn-O Thin-Film Transistors for Transparent AMOLEDs

  • Cho, Doo-Hee;KoPark, Sang-Hee;Yang, Shin-Hyuk;Byun, Chun-Won;Cho, Kyoung-Ik;Ryu, Min-Ki;Chung, Sung-Mook;Cheong, Woo-Seok;Yoon, Sung-Min;Hwang, Chi-Sun
    • Journal of Information Display
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    • 제10권4호
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    • pp.137-142
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    • 2009
  • Transparent top-gate Al-Zn-Sn-O (AZTO) thin-film transistors (TFTs) with an $Al_2O_3$ protective layer (PL) on an active layer were studied, and a transparent 2.5-inch QCIF+AMOLED (active-matrix organic light-emitting diode) display panel was fabricated using an AZTO TFT backplane. The AZTO active layers were deposited via RF magnetron sputtering at room temperature, and the PL was deposited via two different atomic-layer deposition (ALD) processes. The mobility and subthreshold slope were superior in the TFTs annealed in vacuum and with oxygen plasma PLs compared to the TFTs annealed in $O_2$ and with water vapor PLs, but the bias stability of the TFTs annealed in $O_2$ and with water vapor PLs was excellent.

다양성 지각 정도가 팀의 성과에 미치는 영향: 갈등의 조절효과를 중심으로 (The Effects of Perception Levels of Diversity on Team Performance: Moderating Effects of Conflict)

  • 윤준희;신호철
    • 품질경영학회지
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    • 제41권2호
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    • pp.289-300
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    • 2013
  • Purpose: The results of prior studies investigating main effects between diversity and team performance are neither clear nor consistent. This study seeks to provide more evidence for a direct link between these two. The present study also attempts to close a gap in the literature by examining conflict as a moderator of the relationship between diversity and team performance. Methods: As suggested by Williams and O'Reilly(1998), this study examines the effects of perception levels of three specific types of diversity (social category diversity, value diversity, and informational diversity) and two contextual moderators (task conflict and relationship conflict) on team performance. Results: The results show that perception levels of all three types of diversity are significantly related to team performance in the current sample of 313. Results also indicate that relationship conflict significantly interacted with the perception levels of diversity in relating to team performance. Results for task conflict, however, fails to support the hypothesis. Conclusion: The results suggest that the effects of diversity on team functioning depend on how diversity is perceived by team members, rather than actual diversity seen by team members. Theoretical and practical implications are reviewed, and limitations of the study and suggestions for future research are addressed.

서울 강북지역 유통 농산물의 내분비계장애 추정농약의 잔류실태(2007) (Monitoring on Endocrine Disruptors in Commercial Agricultural Products in the Northern Area of Seoul(2007))

  • 하광태;박성규;조태희;한창호;김성단;이경아;김시정;장정임;조한빈;최병현
    • 한국식품위생안전성학회지
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    • 제24권2호
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    • pp.136-142
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    • 2009
  • This study was carried out to investigate the current status of suspected endocrine disrupting pesticides among the agricultural products in northern area of Seoul in 2007. 3,026 samples was analyzed by multiresidue method. Detected Pesticide in 11 cases were procymidone, endosulfan, chlorothalonil, chlorpyrifos, cyermethrin, fenvalerate, hexaconazole, carbendazim, pendimethalin, permethrin, parathion and exceeded 7 cases of endosulfan, procymidone, carbendazim, chlorothalonil, chlorpyrifos, cypermethrin, fenvalerate in the maximum residue limits(MRLs). Procymidone, endosulfan, chlorothalonil and chlorpyrifos comprised up to 80.5% in detected pesticides. Among the 321 cases of detected agricultural products, 287 cases(89.4%) were vegetables, 25 cases (7.8%) were fruits, Others were 9 cases(2.8%).

팀 다양성이 지식창출에 미치는 영향에서 갈등과 흡수역량의 역할 (The Effect of Team Diversity on Knowledge Creation : with Conflict and Absorptive Capacity)

  • 엄혜미;강소라;김민선
    • Journal of Information Technology Applications and Management
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    • 제18권1호
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    • pp.101-123
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    • 2011
  • Considering how an organization is timely competitive for survival in the rapidly changing environment of today, it is more important to get new information and knowledge continuously by teams. However team system provides organization with opportunities and, at the same time, is provoked into conflict by the diversity of team members. This study examines the effect of team diversity on knowledge creation and investigates the influence of absorptive capacity and conflict as mediators. The sample population consisted of officials who work in teams at two business corporations that have successfully achieved knowledge creation. The result presents team diversity serves as an effective factor for absorptive capacity and absorptive capacity also serves as an effective factor for knowledge creation. In contrast, team diversity brings team members into conflict and conflict has a negative effect on knowledge creation. Another significant finding of this research is the fact that a positive effect of absorptive capacity on knowledge creation is greater than a negative effect of conflict on it. It clearly demonstrates that team diversity can be an important determinant of knowledge creation if an organization tries to reduce team member's conflict.

환자안전 교육에서 팀 의사소통과 전문직 간 협업 (Patient Safety Education: Team Communication and Interprofessional Collaboration)

  • 박귀화;박경혜
    • 의학교육논단
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    • 제21권1호
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    • pp.22-30
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    • 2019
  • Team communication, teamwork, and interprofessional collaboration are critical and the basis for patient safety in a more diverse and complex clinical environment. This study explored the current status of teamwork, team communication, and interprofessionalism in the context of patient safety within undergraduate medical education. A scoping review of the literature published since 2010 was undertaken. Fifteen papers were included for final review. The most commonly used educational methods were off-line lectures and simulations. Standard team communication tools suggested in TeamSTEPPS (team strategies and tools to enhance performance patient safety) were covered in some of the research. Knowledge, skills, and teamwork attitudes, interprofessional collaboration, and/or patient safety were improved in most of the papers. In the previous studies of team communication, the content and method of education, and the change in knowledge and attitudes of the individuals have been widely reported, but more research is needed regarding the method of evaluating the teamwork itself. In addition, education on team communication as well as patient safety and interprofessionalism is lacking. As the importance of team communication in patient safety increases, more attention is needed on this topic in undergraduate medical education.

A Study on the Viewing Experience and Performance of Professional Baseball Team: The Team Performance Side and the Fan Performance Side

  • Byun, Kyung-Won
    • International journal of advanced smart convergence
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    • 제10권1호
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    • pp.166-175
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    • 2021
  • The purpose of this study is to analyze the structural relationship among fan experience, fan satisfaction, team attachment, psychological well-being, team loyalty and quality of life. Specifically, the structural equation model is analyzed for the team performance side leading to fan experience-fan satisfaction-team attachment-team loyalty and the an performance side leading to fan experience-fan satisfaction-psychological well-being-quality of life. The survey to achieve the goal of this study is a professional baseball fan. 150 pilot envestigation and 348 main envestigation were selected as the final effective samples. Data processing was done with SPSS 23 for frequency analysis, exploratory factor analysis and reliability analysis. Also, AMOS 21 was used for confirmatory factor analysis and structural equation model analysis. The results of the analysis are as follows: First, fan experience had a positive effect on the fan satisfaction. Second, fan satisfaction had a positive effect on the team attachment. Third, fan satisfaction had a positive effect on the psychological well-being. Fourth, team attachment had a positive effect on theteam loyalty. Fifth, psychological well-being had a positive effect on the quality of life.