Patent ID: 8815045
Filing Date: 2014-08-26
Classification: G02F

Abstract:
1. A method for manufacturing a semi-finished blank for a varifocal liquid crystal lens, the method comprising: coating the front of a first substrate and/or the rear of a second substrate with an adhesive agent in an adhesive agent region, leaving an adhesive agent-free region that surrounds a liquid crystal holder; after said coating operation, reducing the pressure inside a sealed vessel that holds the first substrate and the second substrate with respect to atmospheric pressure; affixing the second substrate over the front of the first substrate in the reduced pressure environment produced in said reducing the pressure operation, wherein the liquid crystal holder is disposed between the front of the first substrate and the rear on the second substrate, and the second substrate opposes the first substrate; performing a standby operation including continuing the affixed state between the first substrate and the second substrate for a specific length of time in the reduced pressure environment produced in said reducing the pressure operation after the substrates have been affixed; and after said standby operation, causing the adhesive agent to spread throughout the adhesive agent-free region by restoring the pressure of the sealed vessel.