| CPC G02F 1/13394 (2013.01) [E06B 3/6722 (2013.01); E06B 9/24 (2013.01); G02F 1/1337 (2013.01); G02F 1/13392 (2013.01); G02F 1/13725 (2013.01); B60J 1/001 (2013.01); B60J 3/04 (2013.01); E06B 2009/2417 (2013.01); E06B 2009/2464 (2013.01); G02F 1/13398 (2021.01)] | 11 Claims |
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1. A light control film comprising:
a first laminate in which an alignment layer is provided;
a second laminate in which an alignment layer is provided;
a liquid crystal layer which is sandwiched between the first laminate and the second laminate and contains liquid crystal molecules;
a plurality of bead spacers in a light controllable-region of the liquid crystal layer to hold a thickness of the liquid crystal layer; and
electrodes provided in the first laminate and/or the second laminate, wherein
the light control film controls transmitted light by controlling alignment of the liquid crystal molecules through driving performed by the electrodes,
a proportion of an area occupied by the plurality of bead spacers per unit area in the light controllable-region of the liquid crystal layer is 0.1% to 10% inclusive, in a front view with respect to the light control film,
every circular area with a radius of 200 μm and a center located in the light controllable-region of the liquid crystal layer includes at least one independent bead spacer of the plurality of bead spacers, the light controllable-region being a region where light can pass through the light control film,
the at least one independent bead spacer is embedded in and held immovable by the alignment layer in a random position of a planar portion of the first laminate but not embedded in the alignment layer in the second laminate, and
the alignment layer is thinner at the random position due to the at least one independent bead spacer being embedded in the alignment layer.
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