Method for producing liquid crystal display cell and sealing agent for liquid crystal display cell

• US 20070179221A1
• Filed: 04/03/2007
• Published: 08/02/2007
• Est. Priority Date: 02/04/2002
• Status: Active Grant

• Current Assignee: Mitsui Chemicals Incorporated (Mitsui Chemicals)
• Original Assignee: Mitsui Chemicals Incorporated (Mitsui Chemicals)
• Inventors: Kitamura, Tadashi
• Granted Patent: US 7,903,230 B2
• Time in Patent Office: Days
• US Class Current: 524/69
• CPC Class Codes: G02F 1/1339 Gaskets; Spacers; Sealing of cells
• CPC Class Codes: G02F 1/1341 Filling or closing of cells
• CPC Class Codes: G02F 1/13415 Drop filling process
• CPC Class Codes: G02F 2202/023 curable

Abstract

A method for producing a liquid crystal display cell comprising processes of applying a sealing agent on a sealing portion of at least one liquid crystal display cell substrate, dropping liquid crystal on the substrate, and bonding substrates to each other under vacuum, wherein the sealing agent comprising a material to be cured and a curing agent is applied to the sealing portion without mixing the material to be cured and the curing agent, and then the substrates are bonded to each other under vacuum at room temperature to cure the sealing agent, is disclosed. A sealing agent for a liquid crystal display cell wherein the above material to be cured comprise a radically polymerizable resin and an organic peroxide, and the above curing agent comprises a radically polymerizable resin and a decomposition accelerator, is also disclosed.

Claims

1. A method for producing a liquid crystal display cell comprising processes of applying a sealing agent to a sealing portion of at least one liquid crystal display cell substrate, dropping liquid crystal on the substrate, and bonding substrates to each other under vacuum, wherein the sealing agent comprising a material to be cured and a curing agent is applied to the sealing portion without mixing the material to be cured and the curing agent, and then the substrates are bonded to each other under vacuum at room temperature to cure the sealing agent.