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Row Driver 회로가 집적된 2.2-inch QCIF+ a-Si TFT-LCD
윤영준,한승우,정철규,정경훈,김하숙,김서윤,임영진,Yun, Y.J.,Han, S.W.,Jung, C.G.,Chung, K.H.,Kim, H.S.,Kim, S.Y.,Lim, Y.J. 한국전기전자재료학회 2005 전기전자재료학회논문지 Vol.18 No.3
A 2.2-inch QCIF+(176${\times}$RGB${\times}$220) TFT-LCD with integrated row driver was developed using a standard amorphous silicon TFT technology. At low temperature, the integrated row driver operation is dramatically effected by the electron drift mobility reduction(■50 %) and the threshold voltage shift (■1V) of the a-Si TFT. We studied the dependency of circuit design and found that higher on-current circuit is important to guarantee good operation in wide temperature range.
완전 발달 난류 영역에서 면적과 유량비에 따른 T자형 분리관의 안정 길이 및 부차적 손실계수의 추정
권현진(H.J. Kwon),김미현(M.H. Kim),윤영준(Y.J. Yun),장세명(S.M. Chang),조용(Y. Cho) 한국전산유체공학회 2021 한국전산유체공학회지 Vol.26 No.4
In this research, we conducted numerical simulations of T-junction between Reynolds numbers 100,000~10,000,000 to get the minor(or dynamic) loss coefficients for the purpose of simplifying the three-dimensional CFD to one-dimensional analysis, forming the main pipe into the branch pipe of tees with varying area and flow rate ratio. As the ratio of flow rate changes, inflection points are found in the distribution of minor loss coefficients due to both separated and jetted flow. From the measurement of numerical results using the adequate parameters, this paper suggests the minimum stability length in branches of a pipe at each Reynolds number.