Method of producing a condenser lens substrate

Details Method of producing a condenser lens substrate Method of producing a condenser lens substrate

1994-12-22

1996-04-09

Aftergut, Jeff H.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

65 37, 156268, 264 27, 264 121, 359 36, 359 40, 359619, 359620, G02B 513, G02B 300

Patent

active

055058043

ABSTRACT:
In a method of producing a condenser lens substrate, after a first clear substrate and a second clear substrate where a micro-lens having a spherical surface or a lenticular lens is formed are stuck to each other, at least one of the clear substrates is ground. At this time, the clear substrate is ground so as to have a thickness that a focus of the micro-lens or the lenticular lens is positioned in the vicinity of the outer surface of the first or the second clear substrate. This makes it possible to form a micro-lens or a lenticular lens having a short focus in a substrate of a liquid crystal display element. As a result, when a condenser lens substrate is produced, a possibility of breakage of the clear substrate is eliminated, and handling and sticking of clear substrates become easy, thereby making it possible to improve mass-productivity of a condenser lens substrate.

REFERENCES:
patent: 5225935 (1993-07-01), Watanabe et al.
patent: 5276538 (1994-01-01), Monji et al.

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