排序方式: 共有4条查询结果,搜索用时 15 毫秒
1
1.
柔性有源OLED显示器制造几点技术方面的考虑 总被引:2,自引:0,他引:2
Juhn S. Yoo Nackbong Choi Yong-Chul Kim In-Hwan Kim Seung-Chan Byun Sang-Hoon Jung Jong-Moo Kim Soo-Young Yoon Chang-Dong Kim In-Byeong Kang In-Jae Chung 代永平 《现代显示》2009,20(2):21-24
AMOLED在柔性显示领域前途似锦。LG显示展示了一款全彩4in柔性AMOLED样机,衬底为80μm厚的不锈钢薄片,曲率达到5cm弯曲半径。本文就此项柔性显示技术所面临的挑战进行了探讨.包括柔性衬底衬底的传送、如何获得特性稳定可靠的TFT以使OLED的亮度和一致性适用于此项技术的商业化推广。 相似文献
2.
Seung-Chan Baek Ki-Won Jun Yun-Jo Lee Jae Dong Kim Dal Young Park Kwan-Young Lee 《Research on Chemical Intermediates》2012,38(6):1225-1236
The effects of Ru on the self-reducibility of Ru-doped Ni/MgAl2O4 catalysts, which do not need pre-reduction treatment with H2, were investigated in the steam reforming of methane (SRM). The Ru-promoted Ni/MgAl2O4 catalysts with various amounts of Ru (0–0.5 wt%) were prepared by stepwise impregnation and co-impregnation methods using
hydrotalcite-like MgAl2O4 support. For comparison, Ru/MgAl2O4 catalysts with the same amount of Ru were also prepared by the impregnation method. The catalysts were characterized by the
N2-sorption, XRD, H2-TPR, H2-chemisorption, and XPS methods. Ni/MgAl2O4 catalyst in the presence of even the trace amount of Ru (Ru content ≥0.05 wt%) showed higher conversion without pre-reduction
as compared to Ru/MgAl2O4 catalysts in SRM under the same conditions. The self-activation of Ru–Ni/MgAl2O4 catalysts is mainly attributed to the spillover of hydrogen, which is produced on Ru at first and then reduces NiO species
under reaction conditions. Besides, Ru doping makes the reduction of NiO easier. The stepwise impregnated Ru/Ni/MgAl2O4 catalyst produced superior performance as compared to co-impregnated Ru–Ni/MgAl2O4 catalyst for SRM. 相似文献
3.
Hye Jin Jun Myung-June Park Seung-Chan Baek Jong Wook Bae Kyoung-Su Ha Ki-Won Jun 《天然气化学杂志》2011,20(1):9-17
Kinetics model was developed for the mixed (steam and dry) reforming of methane, which is useful for the control of H2/CO ratio. The equilibrium constants of reaction rate were determined using the experimental equilibrium data at different reaction temperatures, while the forward reaction rate constants were estimated using the experimental data under non-equilibrium (high inert fraction and high space velocity) conditions. The comparison between calculated and experimental data clearly showed that the developed model described satisfactorily, and further analysis using the parametric sensitivity determined the wall temperature and CO2 fraction in the feed gas as effective parameters for the manipulation of CH4 conversion and H2/CO ratio of synthesis gas under the equilibrium condition. Meanwhile, the inert fraction, rather than the residence time, was selected as additional parameter under non-equilibrium condition. 相似文献
4.
Jae-Yoon Sim Young-Soo Sohn Seung-Chan Heo Hong-June Park Soo-In Cho 《Solid-State Circuits, IEEE Journal of》1999,34(4):529-535
A current-mode bidirectional I/O buffer was designed, and the maximum effective bandwidth of 1.0 Gb/s per wire was obtained from measurements. To enhance the operating speed, the voltage swing on the transmission line was reduced to 0.5 V and the internal nodes of the buffer were designed to be low impedance nodes using the current-mode scheme. An automatic impedance-matching scheme was used to generate bias voltages, which adjust output resistance of the buffer to be equal to the characteristic impedance of the transmission line in spite of process variations. The chip was fabricated by using a 0.8-μm CMOS technology. The chip size was 500×330 μm2, and the power consumption was 50 mW at a supply voltage of 3 V 相似文献
1