Liquid crystal display device

A liquid crystal display device constituted by a plurality of pixels arranged in a matrix, comprising:

• a first substrate including;
• a first gate line and a second gate line respectively extending in a first direction,
• an auxiliary capacitance line extending in the first direction at a substantially center portion between the first gate line and the second gate line,
• a first source line and a second source line extending in a second direction orthogonally crossing the first direction,
• a switching element electrically connected with the first gate line and the first source line,
• a pixel electrode including a main pixel electrode electrically connected with the switching element and extending in the second direction in the shape of a belt between the first source line and the second source line, and a sub-pixel electrode arranged on the auxiliary capacitance line and connected with the main pixel electrode, the sub-pixel electrode extending in the first direction between the first source line and the second source line,
• a first alignment film covering the pixel electrode, and
• a second substrate including;
• a common electrode having a pair of main common electrodes arranged on the first and second source lines on both sides sandwiching the main pixel electrode and extending in the second direction,
• a second alignment film covering the common electrode, and
• a liquid crystal layer held between the first alignment film and the second alignment film and including liquid crystal molecules;
• wherein
• the liquid crystal layer is formed of materials having negative dielectric constant anisotropy, and the liquid crystal molecules are initially aligned substantially in parallel with the first direction when electric field is not impressed between the pixel electrode and the common electrode.

A liquid crystal display device, comprising:

• a first substrate including;
• a gate line and an auxiliary capacitance line respectively extending in a first direction,
• a source line extending in a second direction orthogonally crossing the first direction,
• a switching element electrically connected with the gate line and the source line,
• a pixel electrode including a main pixel electrode electrically connected with the switching element and extending in the second direction in the shape of a belt,
• a first alignment film covering the pixel electrode, and
• a second substrate including;
• a common electrode having a pair of main common electrodes arranged on both sides sandwiching the main pixel electrode and extending in the second direction,
• a second alignment film covering the common electrode, and
• a liquid crystal layer held between the first alignment film and the second alignment film and including liquid crystal molecules;
• wherein
• the liquid crystal layer is formed of materials having negative dielectric constant anisotropy, and the liquid crystal molecules are initially aligned substantially in parallel with the first direction when electric field is not impressed between the pixel electrode and the common electrode,
• the liquid crystal display device further comprises a first polarization plate arranged on an outer surface of the first substrate and including a first polarizing axis and a second polarization plate arranged on an outer surface of the second substrate and including a second polarizing axis in a Cross Nicol positional relation with the first polarizing axis, and the first polarizing axis of the first polarization plate is arranged in parallel with or orthogonally crossing an initial alignment direction of the liquid crystal molecules,
• the pixel electrode includes a sub-pixel electrode connected with the main pixel electrode, arranged on the auxiliary capacitance line and extending in the first direction,
• the first substrate includes a first shield electrode arranged facing the gate line and covered with the first alignment film and a second shield electrode arranged facing the source line and covered with the first alignment film, and the first and second shield electrodes are set to the same electric potential as that of the common electrode, and
• the main common electrode is arranged above the source line.