Multi-layer sheet for use in electro-optic displays
AssigneeE Ink Corporation
InventorsGuy M. Danner, Sandra Rifai
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Abstract
A multi-layer film, useful as a front sub-assembly in electro-optic displays, comprises, in this order: a light-transmissive electrically-conductive layer (114); a light-transmissive first protective layer (112); a light-transmissive moisture barrier layer (108); and a light-transmissive second protective layer (106). This multi-layer film can be used in forming an electro-optic display by the processes described in U.S. Pat. No. 6,982,179 or Patent Publication No. 2007/0109219.
Claims19
A multi-layer film useful as a front sub-assembly in electro-optic displays, the multi-layer film comprising, in this order:
- a light-transmissive electrically-conductive layer;
- a light-transmissive first protective layer;
- a light-transmissive moisture barrier layer;
- and
- a light-transmissive second protective layer.
A process for assembling an electro-optic display comprising:
- providing a multi-layer film which itself comprises, in this order:
- a light-transmissive electrically-conductive layer;
- a light-transmissive first protective layer;
- a light-transmissive moisture barrier layer;
- and
- a light-transmissive second protective layer;
- providing a double release film comprising a layer of an electro-optic medium sandwiched between first and second adhesive layers;
- providing a backplane comprising at least one pixel electrode,
- laminating the double release film to the multi-layer film with the first adhesive layer contacting the electrically-conductive layer, thus securing the double release film to the multi-layer film;
- and
- laminating the double release film to the backplane with the second adhesive layer contacting the backplane, thus securing the double release film to the backplane,
- the two laminations being done in either order.
A process for preparing a multi-layer film useful as a front sub-assembly in electro-optic displays, the process comprising:
- providing a first polymeric sheet comprising an ultra-violet absorber and having a light-transmissive electrically-conductive layer on one surface thereof,
- providing a second polymeric sheet having a moisture barrier on one surface thereof,
- coating an adhesive layer on to either the moisture barrier coated surface of the second polymeric sheet or the surface of the first polymeric sheet which does not carry the electrically-conductive layer;
- and
- contacting the first and second polymeric sheets together leaving the electrically-conductive layer exposed and with the adhesive layer and the moisture barrier disposed between the two polymeric sheets.
A process for preparing a multi-layer film useful as a front sub-assembly in electro-optic displays, the process comprising:
- providing first and second polymeric sheets each comprising a polymeric layer having a moisture barrier on one surface thereof,
- coating an adhesive layer over one of the moisture barriers;
- contacting the first and second polymeric sheets together with the adhesive layer and the two moisture barriers disposed between the two polymeric layers;
- introducing an ultraviolet absorber into one of the polymeric layers;
- and
- forming a conductive layer on an exposed surface of one of the polymeric layers.
Dependencies are inferred from the claim text.