MANUFACTURE OF SHAPED STRUCTURES IN LCD CELLS, AND MASKS THEREFOR

摘要

A method of forming shaped structures in liquid crystal display cells, comprises applying a photosensitive layer ( 6 ) to a transistor plate ( 2 ), and forming the shaped structures on the photosensitive layer in a photolithographic process using a grey-tone photo mask ( 7, 21 ). This mask comprises at least one region of semi-transparent material ( 8, 16, 18 ), the degree of transparency of which is dependent on the optical band gap of the material.