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This paper proposes a new gate driver circuit using depletion mode a-IGZO TFTs. The proposed gate driver circuit can prevent Q node, the gate node of pull-up TFT, from discharging during the output pulse duration. For that purpose, our circuit applies sufficient negative gate-to-source bias (Vgs) to the switch TFTs connected to the Q node during that time. Consequently, the leakage current through...
In this study, the effect of the illuminance of LED lamps on long term memory is verified in the conditions of 400lx, 700lx, 1000lx according to the standards of study room illuminance between 400lx, the minimum and 1000lx, the maximum suggested by KSA 3011. Word fragment task is used to measure the long term memory. As a dependent task, 90 words made up of 7 letters are selected among 2700 words...
This paper proposes a power-efficient drive circuit for plasma display panels (PDPs). The proposed circuit reduces reactive power consumption by varying the inductance for energy recovery and by separating the grounds of the sustain and data drivers. Power consumption due to discharge current is reduced by using two soft-switching inductors for the pull-up switches in the bridge circuit. Power consumption...
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