Abstract: A hybrid drive device includes: a first rotary electric machine disposed on a first axis; an input member; a second rotary electric machine; an output member that is drivingly connected to the second rotary electric machine and outputs rotation; a power distribution planetary gear mechanism including a first rotary element drivingly connected to the first rotary electric machine, a second rotary element drivingly connected to the input member, and a third rotary element drivingly connected to the output member; a brake unit; and a clutch unit interposed between the third rotary element and the output member and configured to disconnect the third rotary element and the output member. The clutch unit is disposed on the first axis and disposed on an outer circumferential side of the planetary gear mechanism to overlap the planetary gear mechanism in a first radial view along a first radial direction.

Abstract: In order to attain an electric power saving for a liquid crystal display having a pre-charging unit, a signal line driving circuit according to the present invention is used in an active matrix type of a liquid crystal display, and it is characterized in that it applies a middle potential Vp serving as a pre-charging voltage and a gradation voltage corresponding to a picture data to a plurality of signal lines, and it has a latch 11 and a comparator 12 for comparing a picture data before one horizontal period with a picture data to be next displayed for each signal line, and a switch controller 13 for applying the middle potential Vp in accordance with the result compared by the comparator 12, and if a writing operation can be stably carried out at a high speed without any pre-charging operation, the pre-charging operation is not done. Thus, it is possible to reduce a loss of a current necessary for the pre-charging operation.

Abstract: In order to attain an electric power saving for a liquid crystal display having a pre-charging unit, a signal line driving circuit according to the present invention is used in an active matrix type of a liquid crystal display, and it is characterized in that it applies a middle potential Vp serving as a pre-charging voltage and a gradation voltage corresponding to a picture data to a plurality of signal lines, and it has a latch 11 and a comparator 12 for comparing a picture data before one horizontal period with a picture data to be next displayed for each signal line, and a switch controller 13 for applying the middle potential Vp in accordance with the result compared by the comparator 12, and if a writing operation can be stably carried out at a high speed without any pre-charging operation, the pre-charging operation is not done. Thus, it is possible to reduce a loss of a current necessary for the pre-charging operation.