A method for the separation of a short-circuited part between the upper and lower electrodes of a a liquid crystal display panel and process for the manufacture of a a liquid crystal display panel using this method.

摘要

PURPOSE:To improve a display grade by superposing a 1st substrate and 2nd substrate in such a manner that plural opposed parts are formed of a common electrode and counter electrode, detecting the opposed part which is shorted and insulating and disconnecting the shorted point existing in the opposed part from the common electrode or counter electrode. CONSTITUTION:The striped electrodes consisting of indium oxide and molybdenum are formed on the glass substrate, then a polyimide high-polymer film is provided on the electrode substrate. The upper and lower substrates 13, 15 are subjected to a rubbing orientation treatment in one direction by a cloth. Further, an isopropyl alcohol soln. contg. 0.05wt.% SiO2 beads having 1.5mu average grain size is spin-coated on one substrate and after the coating is dried by heating, the upper and lower substrates are stuck to each other via a sealant which is an epoxy adhesive agent. The substrates are thereafter heated under press welding to form a panel. A display signal is impressed between the upper and lower electrodes after sealing of a liquid crystal and the resistance value between the upper and lower electrodes corresponding to the point impressed with the signal is measured by a tester 19. The electrodes around the point existing in the shorted state are cut by a laser. The display grade is thereby greatly improved.