Multi-layer sheet for use in electro-optic displays
AssigneeE Ink Corporation
InventorsGuy M. Danner, Sandra Rifai
Life of this patent
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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.
Claims12
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 baffler layer;
- and
- a light-transmissive second protective layer,
- the film further comprising a masking film on the opposed side of the second protective layer from the light-transmissive electrically-conductive layer, the masking film being removable from the layer with which it is in contact without substantial damage to said layer.
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 baffler 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 bafflers 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.