摘要:
An object of the present invention is to suppress deterioration in the thin film transistor. A plurality of pulse output circuits each include first to eleventh thin film transistors is formed. The pulse output circuit is operated on the basis of a plurality of clock signals which control each transistor, the previous stage signal input from a pulse output circuit in the previous stage, the next stage signal input from a pulse output circuit in the next stage, and a reset signal. In addition, a microcrystalline semiconductor is used for a semiconductor layer serving as a channel region of each transistor. Therefore, degradation of characteristics of the transistor can be suppressed.
摘要:
The hollow plunger of a hydraulic tensioner for an engine timing chain protrudes from a tensioner housing in an oblique downward direction. An inner sleeve fixed to the housing slidably protrudes into the interior of the plunger, and has a ball check valve at its protruding end. Oil is supplied though the sleeve and the check valve to a high pressure oil chamber formed inside the plunger, and flows outward through a two-part leakage path formed by a gap between the sleeve and the interior of the plunger and a gap between the exterior of the plunger and an interior wall of a plunger-accommodating hole in the housing. Any air that enters the tensioner accumulates in a region surrounding the upper end of the sleeve, rather than in the high oil pressure chamber inside the plunger.
摘要:
The amplitude of a potential of a signal line is decreased and a scan line driver circuit is prevented from being excessively loaded. A light-emitting device includes a light-emitting element; a first power supply line having a first potential; a second power supply line having a second potential; a first transistor for controlling a connection between the first power supply line and the light-emitting element; a second transistor, which is controlled in accordance with a video signal, whether outputting the second potential applied from the second power supply line or not; a switching element for selecting either the first potential applied from the first power supply line or the output of the second transistor; and a third transistor for selecting whether the first potential or the output of the second transistor which is selected by the switch is applied to a gate of the first transistor.
摘要:
The present invention provides nonvolatile semiconductor memory devices which operate with low power consumption. In a nonvolatile semiconductor memory device, a plurality of nonvolatile memory elements are connected in series. The plurality of nonvolatile memory elements include a semiconductor layer including a channel forming region and a control gate provided to overlap with the channel forming region. Operations of write, erase, a first read, and a second read in a verify operation of data to the nonvolatile memory elements, are conducted by changing voltage to the control gates of the nonvolatile memory elements. The second read in the verify operation after erase operation is conducted by changing only one of a potential of the control gate of a nonvolatile memory element which are selected from the plurality of nonvolatile memory elements, and as the potential, a potential different from a potential of the first read is used.
摘要:
To provide a method of releasing charges which have been injected into charge accumulating layers of nonvolatile memory elements without using a substrate terminal such as a p well or an n well, as a method for deleting data from a NAND-type nonvolatile memory. In the method for deleting data from the NAND-type nonvolatile memory, charges stored in a charge accumulating layer of a first nonvolatile memory element are released by applying a first potential to a bit line and a source line, a second potential to a control gate of the first nonvolatile memory element, and a third potential which is different from the second potential to a control gate of a second nonvolatile memory element.
摘要:
A transistor includes a gate, a source, and a drain, the gate is electrically connected to the source or the drain, a first signal is input to one of the source and the drain, and an oxide semiconductor layer whose carrier concentration is 5×1014/cm3 or less is used for a channel formation layer. A capacitor includes a first electrode and a second electrode, the first electrode is electrically connected to the other of the source and the drain of the transistor, and a second signal which is a clock signal is input to the second electrode. A voltage of the first signal is stepped up or down to obtain a third signal which is output as an output signal through the other of the source and the drain of the transistor.
摘要:
An image processing device includes: a connecting unit that connects a projecting device and an image capture device, at least one of the projecting device and the image capture device having an adjustable position; an acquiring unit that acquires an image captured by the image capture device capturing an image of a reference pattern that is projected by the projecting device and indicates an effective projecting range of the projecting device; a color converting unit that extracts the reference pattern from the captured image, and performs a color conversion on the extracted reference pattern; an enlarging/reducing unit that enlarges or reduces the color-converted reference pattern in accordance with the ratio between the maximum effective imaging range of the image capture device and the effective projecting range of the projecting device; a superimposing unit that superimposes the enlarged or reduced reference pattern on a reference pattern yet to be projected; and an output unit that outputs the reference pattern superimposed by the superimposing unit to the projecting device.
摘要:
In a case where a p-channel thin film transistor is used as a thin film transistor that is electrically connected to a light-emitting element and drives the light-emitting element, a value of cutoff current of the p-channel thin film transistor is made lower than that of a p-channel thin film transistor of a driver circuit. Specifically, channel doping is selectively performed on a semiconductor layer of a thin film transistor included in a pixel.
摘要:
A semiconductor device is provided, which comprises at least a cell including a plurality of memory elements connected in series. Each of the plurality of memory elements includes a channel formation region, source and drain regions, a floating gate, and a control gate. Each of the source and drain regions is electrically connected to an erasing line through a semiconductor impurity region.
摘要:
A potential which is applied to a gate electrode of a driving transistor in accordance with an emission state or a non-emission state of a light-emitting element fluctuates due to noise or leakage from a selection transistor, or the like, which causes a problem in that the driving transistor cannot turn on or off normally and malfunctions. The present invention includes a transistor connected to a light-emitting element, a power source line, a scan line, a memory circuit, and a switching circuit, in which the transistor controls light emission or non light emission of the light-emitting element, and the switching circuit controlled by the scan line conducts switching between the transistor, and the memory circuit and the power source line, and applies an input potential to the transistor.