Liquid crystal display device

A display device comprising:

• a substrate;
• a pixel on the substrate;
• a gate line in electrical connection with the pixel, wherein the gate line extends in a row direction;
• a data line which crosses the gate line;
• the pixel including:
• first and second thin film transistors, each in electrical connection with the gate line and the data line;
• and
• a pixel electrode including a first subpixel electrode in connection with an output terminal of the first thin film transistor, and a second subpixel electrode in connection with an output terminal of the second thin film transistor, wherein a horizontal side of the pixel electrode in the row direction is longer than a vertical side of the pixel electrode;
• and
• a reference voltage line including:
• a vertical portion which passes through an area including the pixel electrode, and
• a horizontal portion which extends from the vertical portion along a perimeter of the horizontal side of the pixel electrode, wherein the horizontal portion is in electrical connection with the second subpixel electrode.

A liquid crystal display device comprising:

• a first substrate;
• a second substrate which faces the first substrate;
• a liquid crystal layer between the first substrate and the second substrate, and including liquid crystal molecules;
• a plurality of gate lines on the first substrate, wherein the plurality of gate lines extends in a row direction;
• a plurality of data lines on a first insulating layer which is on the first substrate, wherein the plurality of data lines extends in a column direction;
• pixel electrodes on a second insulating layer which is on the first insulating layer,
• wherein the pixel electrodes are respectively between adjacent gate lines among the plurality of gate lines and between adjacent data lines among the plurality of data lines, each of the pixel electrodes including first and second-area electrodes;
• switching elements which alternately connect pixel electrodes in a same row to the data lines adjacent to the pixel electrodes in the same row,
• wherein each of the switching elements includes at least two thin film transistors, sources and gates of the thin film transistors are in connection with data lines and gate lines which correspond to the thin film transistors, respectively, and drains of the thin film transistors are in connection with the first and second-area electrodes which correspond to the thin film transistors, respectively;
• a reference voltage line on the second insulating layer,
• wherein the reference voltage line includes vertical lines which extend in the column direction and in predetermined areas of the pixel electrodes, and horizontal lines in connection with the second-area electrodes along perimeters between the pixel electrodes, wherein the horizontal lines alternately extend in the row direction from the vertical lines;
• and
• a common electrode which faces the pixel electrodes and is on the second substrate.

A liquid crystal display device comprising:

• a first substrate;
• a second substrate which faces the first substrate;
• a liquid crystal layer between the first and second substrates, and including liquid crystal molecules;
• a plurality of gate lines on the first substrate, wherein the plurality of gate lines extends in a row direction;
• a plurality of data lines on a first insulating layer which is on the first substrate, wherein the plurality of data lines extends in a column direction;
• pixel electrodes on a second insulating layer which is on the first insulting layer,
• wherein the pixel electrodes are respectively between adjacent gate lines among the plurality of gate lines and between adjacent data lines among the plurality of data lines, a horizontal side of the pixel electrodes in the row direction is longer than a vertical side of the pixel electrodes in the column direction, and each of the pixel electrodes includes first and second-area electrodes;
• switching elements which connect pixel electrodes in a same row to the data lines adjacent to the pixel electrodes in the same row,
• wherein each of the switching elements includes at least two thin film transistors, sources and gates of the thin film transistors are in connection with data lines and gate lines corresponding to the thin film transistors, respectively, and drains of the thin film transistors are in connection with the first and second-area electrodes corresponding to the thin film transistors, respectively;
• a reference voltage line on the second insulating layer,
• wherein the reference voltage line includes vertical lines which extend in the column direction and in predetermined areas of the pixel electrodes, and horizontal lines in connection with the second-area electrodes along perimeters between the pixel electrodes, wherein the horizontal lines extend in the row direction;
• and
• a common electrode which faces the pixel electrodes and is on the second substrate.

A display device comprising:

• a substrate;
• a pixel on the substrate;
• a gate line in electrical connection with the pixel, wherein the gate line extends in a row direction;
• a data line which crosses the gate line;
• the pixel including;
• first and second thin film transistors in electrical connection with the gate line and the data line;
• and
• a pixel electrode including a first subpixel electrode in connection with an output terminal of the first thin film transistor, and a second subpixel electrode in connection with an output terminal of the second thin film transistor;
• and
• a reference voltage line including:
• a vertical portion which passes through an area including the pixel electrode,
• a first horizontal portion which extends from the vertical portion in a first direction in the row direction, wherein the first horizontal portion is in electrical connection with the second subpixel electrode, and
• a second horizontal portion which extends in a direction opposite to the first direction.