Abstract: A plurality of display panels having a curved surface are placed in a limited space. Two, or three or more display panels are combined to form one display region having a T-shaped outer edge as one screen, and a driver can curve part of the display panel as appropriate so that the driver can see the screen easily. A first display panel or a second display panel has flexibility and includes a position adjustment function of curving an end portion. That is, by curving part of the display panel, the user can see the display panel easily. The in-car design can also be varied.

Abstract: A battery evaluation system that performs evaluation by easily linking a plurality of measurement methods relating to a secondary battery is provided. A charge and discharge device is configured to perform, in a first period, either or both of charge and discharge of a secondary battery. The first measurement device is configured to perform, in the first period, measurement of a spectrum a plurality of times. The arithmetic portion is configured to generate a first graph using the plurality of measured spectra. The arithmetic portion is configured to generate data of a second graph using a set of data including a voltage and the time of measurement of the voltage. A display portion is configured to display the first graph and the second graph at the same time. The battery evaluation system is configured to set a first area in one of the first graph and the second graph and to display a second area corresponding to the first area in the other of the first graph and the second graph.

Abstract: The power consumption of a control device or a data processing system is reduced. Safety is enhanced. An electronic device is operated in a simple way. A control device includes an arithmetic circuit, an input unit, and a power management unit. The input unit includes a sensor element. The power management unit has a function of controlling supply and shutdown of power to the arithmetic circuit. The power management unit has a function of supplying power to the arithmetic circuit in response to a detection signal output from the sensor element. The sensor element includes one or more selected from an acceleration sensor, an angular velocity sensor, and a magnetic sensor. The arithmetic circuit includes a register. The register includes a first circuit and a second circuit.

Abstract: Power consumption of a power storage device is reduced. A highly safe power storage device is provided. Safety of a battery monitored by a semiconductor device is improved. Power consumption is reduced; for example, power in a resting state is reduced. Time needed to perform processing for transition from a resting state to a normal state is shortened or energy is reduced. A power storage device includes a battery, a control circuit, and a converter circuit. The converter circuit has a function of supplying a voltage to the battery; and the control circuit has a function of measuring data of a voltage of the battery and a function of retaining the data of the voltage of the battery.

Abstract: Power consumption is reduced. A semiconductor device includes a sensor circuit including a sensor element, a power management unit, and an arithmetic processing circuit. The power management unit has a function of controlling power supply to the arithmetic processing circuit. The arithmetic processing circuit includes a first circuit including a first storage circuit and a second circuit including a second storage circuit. The first circuit has a function of retaining first data in the first storage circuit during a period where electric power is supplied to the arithmetic processing circuit. The second circuit has a function of reading out the first data retained in the first storage circuit and writing the first data to the second storage circuit during a period where electric power is supplied to the arithmetic processing circuit, and a function of retaining the first data in the second storage circuit during a period where power supply to the arithmetic processing circuit is stopped.

Abstract: A plurality of display panels having a curved surface are placed in a limited space. Two, or three or more display panels are combined to form one display region having a T-shaped outer edge as one screen, and a driver can curve part of the display panel as appropriate so that the driver can see the screen easily. A first display panel or a second display panel has flexibility and includes a position adjustment function of curving an end portion. That is, by curving part of the display panel, the user can see the display panel easily. The in-car design can also be varied.

Abstract: A plurality of display panels having a curved surface are placed in a limited space. Two, or three or more display panels are combined to form one display region having a T-shaped outer edge as one screen, and a driver can curve part of the display panel as appropriate so that the driver can see the screen easily. A first display panel or a second display panel has flexibility and includes a position adjustment function of curving an end portion. That is, by curving part of the display panel, the user can see the display panel easily. The in-car design can also be varied.

Abstract: A plurality of display panels having a curved surface are placed in a limited space. Two, or three or more display panels are combined to form one display region having a T-shaped outer edge as one screen, and a driver can curve part of the display panel as appropriate so that the driver can see the screen easily. A first display panel or a second display panel has flexibility and includes a position adjustment function of curving an end portion. That is, by curving part of the display panel, the user can see the display panel easily. The in-car design can also be varied.