摘要:
A low-power programmable LSI that can perform dynamic configuration is provided. The programmable LSI includes a plurality of logic elements. The plurality of logic elements each include a configuration memory. Each of the plurality of logic elements performs different arithmetic processing and changes an electrical connection between the logic elements, in accordance with the configuration data stored in the configuration memory. The configuration memory includes a set of a volatile storage circuit and a nonvolatile storage circuit. The nonvolatile storage circuit includes a transistor whose channel is formed in an oxide semiconductor layer and a capacitor whose one of a pair of electrodes is electrically connected to a node that is set in a floating state when the transistor is turned off.
摘要:
To provide for a movable electronic device a power receiving device that when charging a battery, simplifies charging of the battery from a power feeder, which is a power supply means, and does not have faults due to an external factor relating to a relay terminal, or damage of the relay terminal, that are caused by directly connecting the battery and the power feeder, and further, to provide an electronic device including the power receiving device. An antenna circuit and a booster antenna for supplying electric power are provided in a movable electronic device. The antenna circuit receives a radio signal such as an electromagnetic wave via the booster antenna, and electric power that is obtained through the receiving of the radio signal is supplied to the battery through a signal processing circuit.
摘要:
A data retention period in a semiconductor device or a semiconductor memory device is lengthened. The semiconductor device or the semiconductor memory includes a memory circuit including a first transistor including a first semiconductor layer and a first gate and a second transistor including a second semiconductor layer, a second gate, and a third gate The first semiconductor layer is formed at the same time as a layer including the second gate.
摘要:
An active region, a source region, and a drain region are formed on a single crystal semiconductor substrate or a single crystal semiconductor thin film. Impurity regions called pinning regions are formed in striped form in the active region so as to reach both of the source region and the drain region. Regions interposed between the pinning regions serve as channel forming regions. A tunnel oxide film, a floating gate, a control gate, etc. are formed on the above structure. The impurity regions prevent a depletion layer from expanding from the source region toward the drain region.
摘要:
A display device includes a display panel including a plurality of pixels, a shutter panel including a driver circuit, a liquid crystal, and light-transmitting electrodes provided in a striped manner, and a positional data detector configured to detect a positional data of a viewer. The shutter panel is provided over a display surface side of the display panel, a width of one of the light-transmitting electrodes in the shutter panel is smaller than that of one of the plurality of pixels, and the driver circuit in the shutter panel is configured to selectively output signals for forming a parallax barrier to the light-transmitting electrodes. The parallax barrier is capable of changing its shape in accordance with the detected positional data.
摘要:
A display device suppresses the influence of variations of a current value supplied to a light emitting element caused by a temperature change. In particular, luminance variations caused by a temperature gradient in a pixel portion due to a heat generated from a source signal line driver circuit are suppressed. In a display device including a gate signal line provided in a row direction, a source signal line provided in a column direction, and a light emitting element in a pixel portion arranged in matrix corresponding to the gate signal line and the source signal line, a column of monitor elements is provided beside the pixel portion, a constant current is supplied to each row of the monitor elements, and a voltage generated at the monitor element for each row of pixels is applied to light emitting elements of the corresponding row.
摘要:
A display device includes a display panel and a shutter panel provided on a viewable side of the display panel. The shutter panel includes a plurality of first transparent electrodes provided over a first substrate, a plurality of second transparent electrodes provided over a second substrate, and a liquid crystal provided between the first substrate and the second substrate. The first transparent electrodes and the second transparent electrodes are arranged in striped patterns in a first direction and are both spaced in a second direction intersecting the first direction. Potentials of the first transparent electrodes and potentials of the second transparent electrodes are controlled to adjust an alignment of the liquid crystal, so that the shutter panel is provided with light-shielding regions arranged in a striped pattern in the first direction and spaced in the second direction and light-transmitting regions each of which is provided between the light-shielding regions.
摘要:
An object is, in a structure where switch circuits in a signal line driver circuit is placed over the same substrate as a pixel portion, to reduce the size of transistors in the switch circuits and to reduce load in the circuits during charging and discharging of signal lines due to the supply of data. A display device is provided which includes a pixel portion receiving a video signal, and a signal line driver circuit including a switch circuit portion configured to control output of the video signal to the pixel portion. The switch circuit portion includes a transistor over an insulating substrate. The transistor has a field-effect mobility of at least 80 cm2/Vs or more. The transistor includes an oxide semiconductor layer.
摘要:
An object is to provide a display device on which 3D images can be perceived from a large area. A parallax barrier panel includes a first substrate provided with a plurality of light-blocking layers and a plurality of light-transmitting layers, and a second substrate. The light-blocking layers and the light-transmitting layers are alternately provided in contact with one surface of the first substrate and are interposed between the first substrate and the second substrate. The refraction index of each of the light-transmitting layers is different from the refraction index of the first substrate or the refraction index of the second substrate. The parallax barrier panel is stacked with a display panel including a plurality of pairs of a pixel for the right eye and a pixel for the left eye.
摘要:
An object is to provide a three-dimensional display device capable of displaying bright images with low power consumption. The display device includes: an image display portion including a pixel portion provided with a plurality of pixels; a light-blocking portion including a first shutter and a second shutter; a signal source outputting the common potential; and a controller controlling transmittances of the first shutter and the second shutter and level of the common potential output from the signal source to bring the transmittances and the level into synchronism with supply of an image signal, display of a right-eye image, or display of a left-eye image performed in the pixel portion.