Ultraviolet filter for plasma addressed liquid crystal display

A method of manufacturing a plasma addressed liquid crystal display in which a liquid crystal cell including columns of signal electrodes is joined to a plasma cell including rows of discharge channels through an intermediate thin glass sheet, said method comprising the steps of:

• first forming an ultraviolet ray transmission preventive film having a function of absorbing or reflecting ultraviolet rays on one surface of the thin glass sheet by printing, spin-coating, vapor-deposition or sputtering;
• then joining a liquid plasma cell on one surface side of the thin glass sheet, said plasma discharge cell being operable to generate a plasma discharge that emits ultraviolet radiation;
• and
• joining a liquid crystal cell having a liquid crystal material on the other surface side of the thin glass sheet so that ultraviolet radiation from said plasma discharge is substantially prevented from reaching the liquid crystal material of the liquid crystal cell.

A method of manufacturing a plasma addressed liquid crystal display in which a liquid crystal cell including columns of signal electrodes is joined to a plasma cell including rows of discharge channels through an intermediate thin glass sheet, said method comprising the steps of:

• first applying an ultraviolet ray transmission preventive film having a function of absorbing or reflecting ultraviolet rays on both surfaces of the thin glass sheet by dipping, and baking the ultraviolet ray transmission preventive film;
• then joining a plasma discharge cell on one surface side of the thin glass sheet, said plasma discharge cell being operable to generate a plasma discharge that results in emission of ultraviolet radiation;
• and
• joining the liquid crystal cell having a liquid crystal material on the other surface side of the thin glass sheet so that ultraviolet radiation from said plasma discharge is substantially prevented from reaching the liquid crystal material of the liquid crystal cell.