Patent ID: 9069212
Filing Date: 2015-06-30
Classification: G02F,G03F

Abstract:
1. An exposure apparatus for exposing a photoalignment film that is provided on a substrate, the exposure apparatus comprising: a light source and first and second photomasks, and exposing the photoalignment film through the first and second photomasks while scanning at least one of the light source and the substrate, wherein, when a direction in which at least one of the light source and the substrate is scanned is taken as a scanning direction, and a direction that is orthogonal to the scanning direction is taken as a vertical direction: the first photomask includes a first region, and a second region that is adjacent to the first region in the vertical direction; the first region includes a plurality of first transparent portions inside a first light-shielding portion; the plurality of first transparent portions are arranged in the vertical direction; the second region includes a plurality of second transparent portions inside a second light-shielding portion; the plurality of second transparent portions are smaller than the plurality of first transparent portions; the plurality of second transparent portions are arranged in the vertical direction and are discretely dispersed in the scanning direction; the second photomask includes a third region, and a fourth region that is adjacent to the third region in the vertical direction; the third region includes a plurality of third transparent portions inside a third light-shielding portion; the plurality of third transparent portions are arranged in the vertical direction; the fourth region includes a plurality of fourth transparent portions inside a fourth light-shielding portion; the plurality of fourth transparent portions are smaller than the plurality of third transparent portions; the plurality of fourth transparent portions are arranged in the vertical direction and are discretely dispersed in the scanning direction; and a same part of the photoalignment film is sequentially exposed through the plurality of second and fourth transparent portions that are discretely dispersed in the scanning direction and positioned along one line parallel to the scanning direction in an interleaving pattern.