LIQUID CRYSTAL DISPLAY DEVICE AND MANUFACTURING METHOD OF THE SAME

摘要

In a liquid crystal display device having an alignment film subjected to an optical alignment process, the frame area can be reduced while maintaining the reliability of the sealing portion. To achieve this, in the display area, the alignment process is performed with UV light on the alignment film, to form an area in which the alignment film is not formed in the opposing first and second sides, and to form an area in which the amount of UV light irradiation on the alignment film is one fourth or less of the display area in the opposing third and fourth sides. In the first and second sides, the sealing material overlaps the area in which the alignment film is not formed. In the third and fourth sides, the sealing material overlaps the area in which the amount of UV light irradiation is one fourth or less of the display area.

主权项

1. A liquid crystal display device comprising:
a first substrate having a first alignment film, a second substrate having a second alignment film, a sealing material and a liquid crystal interposed between the first substrate and the second substrate, wherein the first alignment film and the second alignment film are optical aliment films, wherein the first substrate has a first side, a second side opposite the first side, a third side, and a fourth side opposite the third side, wherein the first substrate comprises a first area having a first width parallel to the first side in which the first alignment is not formed, and a portion of the sealing material overlaps the first area, wherein the first substrate comprises a second area having a second width parallel to the second side in which the first alignment film is not formed, and a portion of the sealing material overlaps the second area, wherein the first substrate comprises a third area parallel to the third side in which the birefringence phase difference (retardation) of the first alignment film is one fourth or less of the birefringence phase difference (retardation) of the first alignment film in a display area, and the width of the third area overlapping the sealing material is one fourth or more of the width of the sealing material in the third side, and wherein the first substrate comprises a fourth area parallel to the fourth side in which the birefringence phase difference (retardation) of the first alignment film is one fourth or less of the birefringence phase difference (retardation) of the first alignment film in the display area, and the width of the fourth area overlapping the sealing material is one fourth or more of the width of the sealing material in the fourth side.