Antireflector black matrix for use in display devices and...

Details Antireflector black matrix for use in display devices and... Antireflector black matrix for use in display devices and...

G - Physics

02

F

G02F 1/1335 (2006.01)

Patent

CA 2160613

A black matrix structure suitable for use in an active matrix liquid crystal display is described. The novel antireflective black matrix comprises successive layers of chromium oxide, a metal selected from among chromium, tungsten, molybdenum, vanadium, iron and niobium, a second layer of chromium oxide and a chromium mirror, all of which are deposited upon the front surface of a glass substrate member. An alternate structure includes the same sequence of layering on the back surface of the chromium mirror. The described black matrixes reduce reflectance of incident light lo less than 0.5%. A technique for the preparation of the described structure involving cathodic sputtering is also described.

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