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Edge Sealing of LCD Cell for Mechanical Polishing

IP.com Disclosure Number: IPCOM000014747D
Original Publication Date: 2000-Oct-01
Included in the Prior Art Database: 2003-Jun-20

Publishing Venue



This describes the edge seal process to protect driver pads on the surface of TFT from being physically and chemically damaged, caused by abrasives during mechanically polishing process of LCD cell. This invented process is described in fig 1. In this process, edge seal of such as resin material is applied just before mechanical polishing as shown in fig 2. More effective way to apply seal at edge between color filter and TFT is to have edge chamfering for gaining more contact area as shown in fig.3 After mechanical polishing, all edge seal is removed. Advantages of this process comparing to the idea of TDB(JP8-1998-0504) are : (1) additional space is not required at outside of cell for having protect seal, (2) cell with liquid crystal injected can be thinned. edge sealing of L C D cell for m echanical polishing