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Fabrication Method for Liquid Crystal Display

IP.com Disclosure Number: IPCOM000100182D
Original Publication Date: 1990-Mar-01
Included in the Prior Art Database: 2005-Mar-15
Document File: 2 page(s) / 51K

Publishing Venue

IBM

Related People

Uchida, H: AUTHOR

Abstract

Disclosed is a method for a point adhesion in order to prevent misalignment between the upper glass and the lower glass.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 92% of the total text.

Fabrication Method for Liquid Crystal Display

       Disclosed is a method for a point adhesion in order to
prevent misalignment between the upper glass and the lower glass.

      Precise pattern alignment and surrounding-seal curing are
required in fabricating a liquid crystal display.  Both the upper
glass and the lower glass are accurately adhered by the surrounding
seal.  However, it is difficult to perfectly prevent misalignment in
the seal curing process while the glasses are pressed and baked in an
oven to cure the surrounding seal.  The point adhesion disclosed
herein can prevent misalignment and does not fluctuate the cell
thickness uniformity.

      As shown in Fig. 1, after the upper glass 1 and the lower glass
2 are aligned, the glue 3 whose material is the same as the
surrounding seal 4 is put between the upper glass and the lower one.
Any excess glue is wiped out after enough glue has entered between
the two glasses.  As shown in Fig. 2, a UV resin 5 is put on
the glue in order to adhere the two glasses before the surrounding
seal curing. The UV resin is cured  by applying UV light.  This
process is the point adhesion.  As shown in Fig. 3, the surrounding
seal and the entered glue are pressed and cured by baking in the oven
at the same time.  In this process, the cell thickness is determined.
 The uniform cell thickness is acquired even near the point adhesion,
because the UV resin does not enter between the two glasses. Fig. 4
shows a...