Semiconductor Device and Display Device
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Accused Products
Abstract
If misalignment in a line width direction of an electrode (pad) of a connection terminal is caused in attachment of a substrate and an FPC, a connection area of the FPC terminal and the connection terminal becomes smaller and contact resistance is increased. In particular, an increase in contact resistance of the connection terminal to which a power supply potential serving as a power source is inputted is a cause of defective display. In view of the above, 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.
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Citations
25 Claims
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1-15. -15. (canceled)
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16. A display device comprising:
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a pixel portion including a plurality of transistors, wherein each of the plurality of transistors contains InGaZnO in a channel formation region; a driver circuit portion including a latch circuit and a shift register; and a connection terminal portion, wherein the connection terminal portion includes a plurality of connection terminals, wherein the plurality of connection terminals are provided with a plurality of connection pads, each of which is part of the connection terminal, wherein the plurality of connection pads include a first connection pad and a second connection pad having a line width different from that of the first connection pad, wherein a plurality of wires are electrically connected to the second connection pad, wherein the plurality of wires are electrically connected to an opposite electrode, and wherein the opposite electrode overlaps the shift register and does not overlap the latch circuit. - View Dependent Claims (17, 18, 19)
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20. A display device comprising:
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a pixel portion including a plurality of transistors, wherein each of the plurality of transistors contains InGaZnO in a channel formation region; a driver circuit portion including a latch circuit and a shift register; and a connection terminal portion, wherein the connection terminal portion includes a plurality of connection terminals, wherein the plurality of connection terminals are provided with a plurality of connection pads, each of which is part of the connection terminal, wherein the plurality of connection pads include a first connection pad and a second connection pad having a line width different from that of the first connection pad, wherein pitches between the plurality of connection pads are equal to each other, wherein a plurality of wires are electrically connected to the second connection pad, wherein the plurality of wires are electrically connected to an opposite electrode, and wherein the opposite electrode overlaps the shift register and does not overlap the latch circuit. - View Dependent Claims (21, 22, 23)
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24. A display device comprising:
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a pixel portion including a plurality of transistors, wherein each of the plurality of transistors contains InGaZnO in a channel formation region; a driver circuit portion including a latch circuit and a shift register; and a connection terminal portion, wherein the connection terminal portion includes a plurality of connection terminals, wherein the plurality of connection terminals are provided with a plurality of connection pads, each of which is part of the connection terminal, wherein pitches between the plurality of connection pads are equal to each other, wherein the plurality of connection pads include a first connection pad and a second connection pad having a line width larger than that of the first connection pad, wherein a plurality of wires are electrically connected to the second connection pad, wherein the plurality of wires are electrically connected to an opposite electrode, and wherein the opposite electrode overlaps the shift register and does not overlap the latch circuit. - View Dependent Claims (25)
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Specification