US 7,256,862 B2Granted

Repairing method for a liquid crystal display panel

AssigneeHannstar Display Corp.

InventorsChien-Ming Chen, Kei-Hsiung Yang

Life of this patent

Estimating the term…

Loading patent…

Abstract

A repairing method of a liquid crystal display panel having a gravity defect includes steps of removing the sealant outside the liquid crystal injection hole and providing a first pressure to the liquid crystal display panel. Next, a second pressure is continuously provided to the liquid crystal display panel, and the sealant in the liquid crystal injection hole is removed. Then, a third pressure is continuously provided to the liquid crystal display panel for pressing the liquid crystal out through the injection hole, and the flowed liquid crystal is cleaned out. After that, the liquid crystal injection hole is sealed with a fresh sealant and a fourth pressure is continuously provided to the liquid crystal display panel. Finally, the fresh sealant is cured and the fourth pressure is removed.

Claims13

Dependent claims

A repairing method for a liquid crystal display panel comprising:

removing a sealant outside a liquid crystal injection area before providing a first pressure;
continuously providing the first pressure to two opposite surfaces of the liquid crystal display panel;
continuously providing a second pressure to two opposite surfaces of the liquid crystal display panel, and removing the sealant in the liquid crystal injection area;
continuously providing a third pressure to two opposite surfaces of the liquid crystal display panel to press liquid crystal out through the liquid crystal injection area, and cleaning the pressed-out liquid crystal;
sealing the liquid crystal injection area with a fresh sealant and continuously providing a fourth pressure to two opposite surfaces of the liquid crystal display panel;
and
curing the fresh sealant and removing the fourth pressure.

4 more elements

Dependencies are inferred from the claim text.