An object is to provide a semiconductor device of which a manufacturing process is not complicated and by which cost can be suppressed, by forming a thin film transistor using an oxide semiconductor film typified by zinc oxide, and a manufacturing method thereof. For the semiconductor device, a gate electrode is formed over a substrate; a gate insulating film is formed covering the gate electrode; an oxide semiconductor film is formed over the gate insulating film; and a first conductive film and a second conductive film are formed over the oxide semiconductor film. The oxide semiconductor film has at least a crystallized region in a channel region.

Semiconductor device, and manufacturing method thereof

An object of the present invention is to decrease the resistance of a power supply line, to suppress a voltage drop in the power supply line, and to prevent defective display. A connection terminal portion includes a plurality of connection terminals. The plurality of connection terminals is provided with a plurality of connection pads which is part of the connection terminal. The plurality of connection pads includes a first connection pad and a second connection pad having a line width different from that of the first connection pad. Pitches between the plurality of connection pads are equal to each other.

Semiconductor device and display device

To improve color reproduction areas in a display device having light-emitting elements. A display region has a plurality of picture elements. Each picture element includes: first and second pixels each including a light-emitting element which has a chromaticity whose x-coordinate in a CIE-XY chromaticity diagram is 0.50 or more; third and fourth pixels each including a light-emitting element which has a chromaticity whose y-coordinate in the diagram is 0.55 or more; and fifth and sixth pixels each including a light-emitting element which has a chromaticity whose x-coordinate and y-coordinate in the diagram are 0.20 or less and 0.25 or less, respectively. The light-emitting elements in the first and second pixels have different emission spectrums from each other; the light-emitting elements in the third and fourth pixels have different emission spectrums from each other; and the light-emitting elements in the fifth and sixth pixels have different emission spectrums from each other.

Display device and electronic device

To provide a circuit used for a shift register or the like. The basic configuration includes first to fourth transistors and four wirings. The power supply potential VDD is supplied to the first wiring and the power supply potential VSS is supplied to the second wiring. A binary digital signal is supplied to each of the third wiring and the fourth wiring. An H level of the digital signal is equal to the power supply potential VDD, and an L level of the digital signal is equal to the power supply potential VSS. There are four combinations of the potentials of the third wiring and the fourth wiring. Each of the first transistor to the fourth transistor can be turned off by any combination of the potentials. That is, since there is no transistor that is constantly on, deterioration of the characteristics of the transistors can be suppressed.

Liquid crystal display device and electronic device

To reduce a leakage current of a transistor so that malfunction of a logic circuit can be suppressed. The logic circuit includes a transistor which includes an oxide semiconductor layer having a function of a channel formation layer and in which an off current is 1×10−13 A or less per micrometer in channel width. A first signal, a second signal, and a third signal that is a clock signal are input as input signals. A fourth signal and a fifth signal whose voltage states are set in accordance with the first to third signals which have been input are output as output signals.

Logic circuit and semiconductor device

To suppress malfunctions in a shift register circuit. A shift register having a plurality of flip-flop circuits is provided. The flip-flop circuit includes a transistor 11, a transistor 12, a transistor 13, a transistor 14, and a transistor 15. When the transistor 13 or the transistor 14 is turned on in a non-selection period, the potential of a node A is set, so that the node A is prevented from entering into a floating state.

Driver circuit, display device, and electronic device

An object of the present invention is to suppress malfunctions in a shift register circuit A shift register having a plurality of flip-flop circuits is provided The flip-flop circuit includes a transistor (11), a transistor (12), a transistor (13), a transistor (14), and a transistor (15) When the transistor (13) or the transistor (14) is turned on in a non-selection period, the potential of a node (A) is set, so that the node (A) is prevented from entering into a floating state

Driver circuit and liquid crystal display device

PROBLEM TO BE SOLVED: To suppress malfunctions in a shift register circuit.SOLUTION: A shift register consisting of a plurality of flip-flop circuits is provided. The flip-flop circuit has a transistor 11, a transistor 12, a transistor 13, a transistor 14, and a transistor 15. In a non-selection time period, a potential of a node A is set by controlling the transistor 13 or the transistor 14 to be in an on state, and thereby, the node A is suppressed from being in a floating state.SELECTED DRAWING: Figure 24

Transistor and semiconductor device

PROBLEM TO BE SOLVED: To suppress malfunction in a shift register circuit.SOLUTION: A semiconductor device comprises a shift register comprising a plurality of flip-flop circuits. The flip-flop circuit comprises: a transistor 11; a transistor 12; a transistor 13; a transistor 14; and a transistor 15. When the transistor 13 or the transistor 14 is turned on in a non-selection period, potential of a node A is set, so that the node A is prevented from entering a floating state.

Umezaki Atsushi

Papers

Driver circuit, display device, and electronic device

Driver circuit and liquid crystal display device

Transistor and semiconductor device

Semiconductor device, display device, and electronic device