Liquid crystal display device
According to one embodiment, a liquid crystal display device includes second substrates, a light-shielding layer, and a liquid crystal layer. The first substrate includes pixel electrodes, a common electrode, and subpixel areas each including area in which the pixel electrode is present and a second area in which the pixel electrode is not present. Each of the subpixel areas includes first and second sides. The first area includes an axial area and branch areas. The second area includes a gap area between the adjacent branch areas. The axial area includes a projection portion projecting to the second side and in alignment with the gap area, and overlaps the light-shielding layer.
1. A liquid crystal display device comprising:
a first substrate;
a second substrate;
a light-shielding layer; and
a liquid crystal layer including liquid crystal molecules between the first substrate and the second substrate, wherein
the first substrate comprises:
a plurality of video signal lines;
pixel electrodes electrically connected to the video signal lines;
a common electrode facing the pixel electrodes and rotating the liquid crystal molecules by generating an electric field between the common electrode and the pixel electrodes; and
a plurality of subpixel areas each comprising a first area and a second area,
the first area is an area in which the pixel electrode is present, and the second area is an area in which the pixel electrode is not present,
each of the subpixel areas comprises a first side and a second side in a first direction,
the first area includes an axial area extending in a second direction intersecting the first direction, and a plurality of branch areas extending in the first direction from the axial area to the first side,
the second area includes a gap area extending in the first direction between the adjacent branch areas, and
the axial area comprises a projection portion projecting to the second side and in alignment with the gap area in the first direction, and overlaps the light-shielding layer.
2. The liquid crystal display device of claim 1 , wherein
the axial area includes connective areas connected to the branch areas, and a non-connective area adjacent to the gap area, and
a width of the non-connective area in the first direction is less than or equal to one-fifth of a total width of the connective area and the branch area in the first direction.
3. The liquid crystal display device of claim 2 , wherein
a width of the non-connective area in the second direction is greater than a width of the connective area in the second direction.
4. The liquid crystal display device of claim 1 , wherein
each of the branch areas comprises a first edge and a second edge arranged in the second direction, and
when the electric field is generated, a rotational direction of the liquid crystal molecules differs between a vicinity of the first edge and a vicinity of the second edge.
5. The liquid crystal display device of claim 1 , wherein
an end portion of the gap area on the second side projects to the second side.
6. The liquid crystal display device of claim 1 , wherein
the axial area includes connective areas connected to the branch areas, and a non-connective area adjacent to the gap area, and
the axial area comprises a bend portion in an edge on the second side at a border between the non-connective area and the connective area.
7. The liquid crystal display device of claim 1 , wherein
the axial area includes connective areas connected to the branch areas, and a non-connective area adjacent to the gap area, and
a length of the projection portion in the first direction is greater than or equal to one-third of a length of the non-connective area in the first direction.
8. The liquid crystal display device of claim 1 , wherein
the first substrate comprises a first alignment film,
the second substrate comprises a second alignment film, and
an alignment direction of the liquid crystal molecules by the first alignment film and the second alignment film conforms to the first direction or a direction perpendicular to the first direction.
9. The liquid crystal display device of claim 1 , wherein
the first substrate comprises a first alignment film,
the second substrate comprises a second alignment film, and
at least one of the first alignment film and the second alignment film is an optical alignment film.
10. The liquid crystal display device of claim 1 , wherein
each of the branch areas comprises a first edge and a second edge arranged in the second direction,
the axial area includes connective areas connected to the branch areas, and a non-connective area adjacent to the gap area,
the axial area comprises a bend portion in an edge on the second side at a border between the non-connective area and the connective area, and
when the electric field is generated, the liquid crystal molecules rotate in a first rotational direction from a vicinity of the first edge to a vicinity of the bend portion which is an extension of the first edge, and the liquid crystal molecules rotate in a second rotational direction different from the first rotational direction from a vicinity of the second edge to a vicinity of the bend portion which is an extension of the second edge.