US 12,468,182 B2
Electrophoretic display with low profile edge seal
Keith A Jacobsen, Walpole, MA (US); George G. Harris, Woburn, MA (US); Jennifer B. Lampron, Newton, NH (US); Eric J. Duchaine, East Hampstead, NH (US); Samantha Morrill, Nashua, NH (US); Crystal Nguyen, Bedford, MA (US); Richard J. Paolini, Jr., Framingham, MA (US); Nishit Murari, Westford, MA (US); and John L. Chuma, Westborough, MA (US)
Assigned to E INK CORPORATION, Billerica, MA (US)
Filed by E INK CORPORATION, Billerica, MA (US)
Filed on Apr. 14, 2022, as Appl. No. 17/720,527.
Claims priority of provisional application 63/187,972, filed on May 13, 2021.
Claims priority of provisional application 63/175,935, filed on Apr. 16, 2021.
Prior Publication US 2022/0334448 A1, Oct. 20, 2022
Int. Cl. G02F 1/01 (2006.01); G02F 1/167 (2019.01); G02F 1/1676 (2019.01); G02F 1/1679 (2019.01)
CPC G02F 1/01 (2013.01) [G02F 1/167 (2013.01); G02F 1/1676 (2019.01); G02F 1/1679 (2019.01); G02F 2202/28 (2013.01)] 12 Claims
OG exemplary drawing
 
1. An electrophoretic display comprising:
an integrated backplane including:
a back electrode layer,
a polymer layer,
a metal foil layer, and
a substrate;
a layer of electrophoretic material disposed adjacent the integrated backplane;
a light-transmissive electrode layer adjacent the layer of electrophoretic material; and
an integrated front barrier including:
a top protective layer,
a moisture barrier layer, and
an optically-clear adhesive, wherein the optically-clear adhesive joins the moisture barrier layer and the integrated backplane to create an edge seal,
wherein the integrated front barrier is deformed at the edges toward the integrated backplane to envelope the layer of electrophoretic material and the light-transmissive electrode layer in a central portion while joining the moisture barrier layer and the integrated backplane along an edge of the electrophoretic display, and
wherein the distance between an edge of the light transmissive electrode layer and an outer edge of the integrated backplane is 0.5 mm or less.