Liquid crystal display panel

A liquid crystal display panel comprising:

• a first substrate;
• a second substrate disposed so as to face the first substrate;
• and a liquid crystal layer interposed between the first and the second substrates,
• wherein the first substrate includes:
• a plurality of pixel electrodes arranged in a matrix;
• a plurality of thin-film transistors, each of which includes a semiconductor layer that is substantially U-shaped in a plan view and, the thin-film transistors being coupled to the pixel electrodes;
• a plurality of scan lines, each of which extends in a first direction and lies in a layer different from the semiconductor layer in a vertical direction that is orthogonal to a surface of the first substrate, the scan lines being disposed at both ends of respective pixel electrode so as to three-dimensionally cross some parts of the semiconductor layer;
• a plurality of signal lines which extend in a second direction different from the first direction and three-dimensionally cross the scan lines, the signal lines being disposed at both sides of respective pixel electrode;
• a plurality of pedestal having a quadrangular shape and disposed at a coupling portion, the pedestals being made of a same metal as the signal line;
• and
• extending portions, each of which is a part of a corresponding scan line and protrudes from the corresponding scan line, the extending portions extending along the signal lines,
• wherein:
• a plurality of pixel areas are defined by the scan lines and the signal lines and arranged in a matrix;
• in the first direction that is along a shorter side of each pixel area,
• two extending portions are adjacent to a corresponding pedestal and disposed between two signal lines, and
• a distance between the extending portions that are between the two signal lines is larger than a distance between pedestals and extending portions adjacent to each other;
• and
• in the second direction that is along a longer side of each pixel area, a length of the extending portion is smaller than a length of the pedestal.

A liquid crystal display panel comprising:

• a first substrate;
• a second substrate disposed so as to face the first substrate;
• and a liquid crystal layer interposed between the first and the second substrates, wherein the first substrate includes:
• a plurality of pixel electrodes arranged in a matrix;
• a plurality of thin-film transistors, each of which is coupled to the pixel electrodes at a first coupling portion;
• a plurality of first metal wiring lines, each of which extends in a first direction and lies in a layer different from a semiconductor layer of the thin-film transistors in a vertical direction that is orthogonal to a surface of the first substrate, the first metal wiring being three-dimensionally crosses some parts of the semiconductor layer;
• a plurality of second metal wiring lines, each of which extends in a second direction different from the first direction so as to three-dimensionally cross the first metal wiring lines, the second metal wiring lines being coupled to a second coupling portion of each of the thin-film transistors;
• a plurality of pedestals, each of which is disposed between adjacent second metal wiring lines and coupled to the first coupling portion, the pedestals being made of a same metal as the second metal wiring lines;
• a plurality of extending portions, each of which is a part of the respective first metal wiring line and which is protruding from a corresponding first metal wiring line, the extending portions extending in the second direction,
• wherein
• a plurality of pixel areas are defined by the first metal wiring lines and the second metal wiring lines and arranged in a matrix,
• in the first direction that is along a shorter side of each pixel area, each of the extending portions is adjacent to a corresponding pedestal,
• in the second direction that is along a longer side of each pixel area, a length of each of the extending portions is smaller than a length of each of the pedestals,
• the second substrate includes a color filter layer disposed so as to face the pixel electrodes,
• the extending portions and the pedestals are disposed outside opening areas in which the color filter layer overlaps the pixel electrodes,
• each of the thin-film transistors is a double-gate transistor including a first channel and a second channel in the semiconductor layer, and
• the first and the second channels extend parallel to each other.