Composition and process for the sealing of microcups in roll-to-roll display manufacturing
AssigneeSiPix Imaging, Inc.
InventorsHongMei Zang, Xiaojia Wang, Rong-Chang Liang
Life of this patent
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Abstract
The invention relates to a novel sealing composition for the manufacture of an electrophoretic or liquid crystal display, and a sealing process using the composition. The composition allows electrophoretic or liquid crystal cells to be seamlessly sealed and the sealing layer free of any defects.
Claims15
An electrophoretic display which comprises display cells filled with an electrophoretic display fluid and sealed with a sealing layer formed from a sealing composition comprising a thermoplastic elastomer and a solvent or solvent mixture which is immiscible with the electrophoretic display fluid and exhibits a specific gravity lower than that of the electrophoretic display fluid.
An electrophoretic display which comprises display cells filled with an electrophoretic display fluid and sealed with a sealing layer formed from a sealing composition comprising a thermoplastic elastomer selected from the group consisting of poly(styrene-b-butadiene), (poly(styrene-b-butadiene-b-styrene), poly(styrene-b-isoprene-b-styrene), poly(styrene-b-ethylene/butylenes-b-styrene), poly(styrene-b-dimethylsiloxane-b-styrene), poly(α-methylstyrene-b-isoprene), poly(α-methylstyrene-b-isoprene-b-α-methylstyrene), poly(α-methylstvrene-b-propylene sulfide-b-α-methylstyrene), poly(α-methylstyrene-b-dimethylsiloxane-b-α-methylstyrene), and their gafted co-polymers or derivatives thereof, wherein said sealing composition further comprises a thermoplastic material that is compatible with the thermoplastic elastomer.
An electrophoretic display which comprises display cells filled with an electrophoretic display fluid and sealed with a sealing layer formed from a sealing composition comprising a thermoplastic elastomer wherein said sealing composition further comprises a wetting agent.
An electrophoretic display which comprises display cells filled with an electrophoretic display fluid and sealed with a sealing layer formed from a sealing composition comprising a thermoplastic elastomer and a crosslinking agent, wherein said crosslinking agent is a bisazide.
Dependencies are inferred from the claim text.