Liquid crystal display device

A liquid crystal display device being characterized in that

• on a liquid-crystal-side surface of one substrate out of respective substrates which are arranged to face each other in an opposed manner with liquid crystal therebetween, regions which are surrounded by a plurality of juxtaposed gate signal lines and a plurality of juxtaposed drain signal lines which cross the gate signal lines are formed as pixel regions,
• a thin film transistor driven in response to a scanning signal from the gate signal line and a pixel electrode to which a scanning signal is supplied from the drain signal line through a drain electrode and a source electrode of the thin film transistor are provided to the inside of each pixel region,
• the drain signal line is formed in a zigzag shape having a bent portion at a portion where a drain signal line crosses the gate signal line and at least at a substantially center portion of the pixel region,
• the thin film transistor is formed in the vicinity of the concave-portion side of the bent portion of the drain signal line,
• the drain electrode is formed of a portion of the drain signal line, and
• the source electrode is formed so as to face the drain electrode in an opposed manner with a channel length in the running direction of the gate signal line.

A liquid crystal display device being characterized in that

• on a liquid-crystal-side surface of one substrate out of respective substrates which are arranged to face each other in an opposed manner with liquid crystal therebetween, regions which are surrounded by a plurality of juxtaposed gate signal lines and a plurality of juxtaposed drain signal lines which cross these gate signal lines are formed as pixel regions,
• a thin film transistor driven in response to a scanning signal from the gate signal line and a pixel electrode to which a scanning signal is supplied from the drain signal line through a drain electrode and a source electrode of the thin film transistor are provided to the inside of each pixel region,
• the drain signal line is formed in a zigzag shape having a bent portion at a portion where a drain signal line crosses the gate signal line and at least at a substantially center portion of the pixel region,
• the thin film transistor is formed in a pattern in which a side of the drain electrode which faces the source electrode in an opposed manner has a concave portion and also in a pattern in which a side of the source electrode which faces the drain electrode in an opposed manner has a convex portion.

A liquid crystal display device being characterized in that

• on a liquid-crystal-side surface of one substrate out of respective substrates which are arranged to face each other in an opposed manner with liquid crystal there between, pixel regions which are surrounded by a plurality of juxtaposed gate signal lines and a plurality of juxtaposed drain signal lines which cross these gate signal lines are formed,
• on each pixel region, a switching element which is driven in response to a scanning signal from the gate signal line, a pixel electrode to which a video signal is supplied from the drain signal line through the switching element, and a counter electrode which is connected to a counter voltage signal line and generates an electric field between the pixel electrode and the counter electrode are formed,
• the counter electrode includes a lower-layer counter electrode and an upper-layer counter electrode which is formed above the lower-layer counter electrode,
• the lower-layer counter electrode is formed such that the lower-layer counter electrodes are respectively arranged at both sides of the drain signal line through the drain signal line and a first insulation film, and
• the upper-layer counter electrode is formed such that the upper-layer counter electrode covers the drain signal line and the lower-layer counter electrodes byway of a second insulation film.

A liquid crystal display device being characterized in that

• on a liquid-crystal-side surface of one substrate out of respective substrates which are arranged to face each other in an opposed manner with liquid crystal therebetween, pixel regions which are surrounded by a plurality of juxtaposed gate signal lines and a plurality of juxtaposed drain signal lines which cross these gate signal lines are formed,
• on each pixel region, a switching element which is driven in response to a scanning signal from the gate signal line, a pixel electrode to which a video signal is supplied from the drain signal line through the switching element, and a counter electrode which is connected to a counter voltage signal line and generates an electric field between the pixel electrode and the counter electrode are formed,
• the counter electrode includes a lower-layer counter electrode and an upper-layer counter electrode which is formed above the lower-layer counter electrode,
• the lower-layer counter electrode is formed such that the lower-layer counter electrode is constituted of an intermediate conductive layer between the drain signal line and the gate signal line, is insulated from the drain signal line by way of a first insulation film and is insulated from the gate signal line by way of a third insulation film, is arranged in the vicinity of at least one signal line out of the drain signal line and the gate signal line, and is extended in the extending direction of the drain signal line.