Inventors:
James N. Yamasaki - Anaheim CA
Assignee:
Beckman Instruments, Inc. - Fullerton CA
International Classification:
G02F 113
Abstract:
A liquid crystal display cell comprising a pair of oppositely disposed glass plates having transparent conductive electrodes formed on the facing surfaces thereof, said glass plates being joined by a seal material along the outer periphery thereof, with the seal material having a small opening formed therein for filling the interior volume of the cell with a liquid crystal material. A barrier is provided internally of the cell having one end joined to the seal material adjacent one side of the fill opening and having its other end extending beyond the fill opening parallel to at least one side of the display cell. The barrier extends between the glass plates, being sealed thereto, and opens into the internal volume of the cell to provide a channel communicating between the fill opening and said internal volume. After the cell is filled with liquid crystal material the channel is closed by a wax plug, such as a plug of high molecular weight hydrocarbon wax, and the fill opening is sealed by an epoxy or glass plug.