| 摘要 |
PROBLEM TO BE SOLVED: To provide a cutting method of a resin substrate or resin fiber and a manufacturing method of a liquid crystal device which can prevent a liquid crystal display device from being deteriorated in characteristic and reliability and decreasing in manufacture yield owing to the deformation of a resin sub strate or resin fiber, the deformation and peeling of a transparent electrode film, etc., at in the cutting. SOLUTION: When a resin substrate 10 having an ITO transparent electrode film 12 formed is cut from its top surface side by using a cutter having a hard blade of <=30 deg. in included angle, umbrella-shaped projections are formed on the back surface side of the cut end surface 14 uniformly to a width of 0.3 to 2μm. This cut end surface 14 is thermally treated. Namely, the cut end surface 14 to back side edge part are made to abut against a flat surface of a glass plate or metal plate which is heated at 180 deg.C and are held for 5 to 10 seconds. Through this heat treatment, the umbrella-shaped projections of the resin substrate 10 which are formed from the cut end surface 14 to the back surface side are made smooth. |
