US 6,636,290 B1 · Methods of forming liquid display panels and the like wherein using two-component epoxy sealant

Abstract

Liquid crystal display (LCD ) panels can be formed rapidly by this method, which involves depositing liquid crystal (LC) in a central region of one substrate, depositing a fillet of epoxy material in a continuous loop along the periphery of one substrate to surround the LC material, placing a second glass substrate over the first substrate and in continuous contact with the epoxy fillet, and then causing the fillet to set by curing or cross-linking. Advantageously, the epoxy fillet can be hardened by scanning it with an infrared or ultraviolet laser focussed to avoid heating the LC material. Alternatively, the epoxy fillet can be formed from two-component epoxy by depositing one fillet of each component on the peripheral region of one of the substrates, joining the substrates to merge the two components, and then vibrating the joined substrates to enhance commingling and setting of the two components into a strong hermetic seal.

Claims11

Dependent claims

A method for forming a liquid crystal display panel, the method comprising:

depositing a first component of a two-component epoxy sealant in a continuous loop on a peripheral region of a first substrate, wherein the continuous loop surrounds a central region of the first substrate;
depositing a second component of the two-component epoxy sealant in a continuous loop on a peripheral region of a second substrate, wherein the continuous loop surrounds a central region of the second substrate;
depositing liquid crystal in a central region of any one of the first substrate and the second substrate;
placing the second substrate adjacent to the first substrate, wherein the peripheral region of the first substrate is disposed over the peripheral region of the second substrate and wherein the first component is in contact with the second component;
and
causing the first component and the second component of the two-component epoxy sealant to set, wherein the liquid crystal is hermetically sealed between the first substrate and the second substrate.

3 more elements

Dependencies are inferred from the claim text.

Methods of forming liquid display panels and the like wherein using two-component epoxy sealant

Life of this patent

Methods of forming liquid display panels and the like wherein using two-component epoxy sealant

Life of this patent

Abstract

Claims11