Production of active liquid crystal panel

Abstract

Abstract PURPOSE:To easily correct a defect to an inconspicuous defect by discoloring a defective picture element to a medium contrast. CONSTITUTION:One picture element exists at the intersected point of a horizontal driving line 1 and a perpendicular driving line 2. A rubbed transparent electrode 8 and TFT 6 are provided on the inside surface of sealing glass 5. A common transparent electrode 4 and a color filter 9 are provided on the inner surface of sealing glass 11 facing the above-nentioned glass. A liquid crystal material 3 is packed between both, by which one picture element is constituted. If this picture element fails to operate and is the point defect, the picture element is irradiated with a laser beam 12 to burn the color filter 9, by which the picture element is blackened to a gray. The rubbing surface on the surface of the transparent electrode 8 opposite thereto is heated to disturb the orientation state of the liquid crystal and to fix the transparency of the light of this picture element at the intermediate of white and black. The point defect picture element is fixed to the gray in this way and is corrected to the substantially inconspicuous defect.

Inventors

• 👤 Hideji Ishihara
• 👤 秀二 石原

Bibliographic Details