Abstract: A semiconductor device and driver capable of adequately suppressing generation of a potential difference between drive signals output by liquid crystal display drivers, and suppressing variation in display output between liquid crystal display blocks of a liquid crystal display unit by balancing the drive performance of each liquid crystal display driver with respect to the liquid crystal display unit. Because control is performed to turn ON corresponding switching means only during drive operation of the liquid crystal display drivers to turn ON the switching means only for the liquid crystal display drivers whose drive operation has started, power is supplied via the switching means to the drive supply line of each liquid crystal display driver only from the transmission supply line of the liquid crystal display driver during drive operation. Hence voltages of the drive supply lines of the liquid crystal display drivers are held at substantially the same potential.

Abstract: A semiconductor device and driver capable of adequately suppressing generation of a potential difference between drive signals output by liquid crystal display drivers, and suppressing variation in display output between liquid crystal display blocks of a liquid crystal display unit by balancing the drive performance of each liquid crystal display driver with respect to the liquid crystal display unit. Because control is performed to turn ON corresponding switching means only during drive operation of the liquid crystal display drivers to turn ON the switching means only for the liquid crystal display drivers whose drive operation has started, power is supplied via the switching means to the drive supply line of each liquid crystal display driver only from the transmission supply line of the liquid crystal display driver during drive operation. Hence voltages of the drive supply lines of the liquid crystal display drivers are held at substantially the same potential.

Abstract: With respect to an automatic transmission in a motor vehicle, which transmission has a vehicle speed-sensitive governor valve and a throttle valve responsive to the intake manifold vacuum, the control system comprises a solenoid-operated selector valve which causes the vacuum chamber of the throttle valve to communicate with either the intake manifold or the atmosphere and a temperature-sensitive switch which is attached to the engine for energizing the selector valve, so that the vacuum chamber is allowed to communicate exclusively with the atmosphere when the engine temperature is not high enough to allow after-burning of the exhaust gas in a thermal reactor attached to the engine, resulting in occurrence of a shifting at a higher engine speed.

Abstract: Two bimetallic leaf valves having thermal hysteresis characteristics different from each other are provided to permit or inhibit transmission of engine induction passage vacuum to a distributor motor to advance or retard the ignition timing in accordance with engine temperature of the time of start of the engine and within a predetermined temperature range after starting the engine.