Interactive electrochemical displays
First Claim
Patent Images
1. An interactive electrochemical display assembly comprising:
- first and second electrode layers interconnected by an ionically conductive pathway and an electronically conductive pathway;
a graphic image obscured from view by said first electrode layer;
a plurality of switches having open and closed states;
said open states of the switches interrupting at least one of said ionically and electronically conductive pathways;
said closed states of the switches completing portions of at least one of said ionically and electronically conductive pathways; and
said switches being closable in a pattern that triggers an electrochemical reaction that erodes at least one portion of said first electrode layer and reveals at least one portion of said graphic image.
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Abstract
Electrochemical displays have electronic or ionic pathways between electrodes interrupted to control activation. Electrochemical erosion of one of the electrodes reveals an underlying graphic image. Game assemblies are constructed by dividing electrochemical components between a main substrate and one or more mounting pieces that can be assembled on the main substrate to activate the display cells.
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Citations
73 Claims
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1. An interactive electrochemical display assembly comprising:
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first and second electrode layers interconnected by an ionically conductive pathway and an electronically conductive pathway;
a graphic image obscured from view by said first electrode layer;
a plurality of switches having open and closed states;
said open states of the switches interrupting at least one of said ionically and electronically conductive pathways;
said closed states of the switches completing portions of at least one of said ionically and electronically conductive pathways; and
said switches being closable in a pattern that triggers an electrochemical reaction that erodes at least one portion of said first electrode layer and reveals at least one portion of said graphic image. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. An interactive compound display assembly comprising:
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a plurality of mounting pieces;
a main substrate having prescribed locations for receiving said mounting pieces;
said mounting pieces including portions of electrochemical display cells that undergo electrochemical reactions for changing between display states;
said main substrate including remaining portions of said electrochemical display cells at said prescribed locations; and
said mounting pieces being receivable in said prescribed locations on the substrate for changing the display states of the display cells. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31)
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32. A printed display assembly comprising:
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a plurality of mounting pieces;
a substrate having prescribed locations for receiving said plurality of mounting pieces;
at least one irreversible electrochemical display being layered on said substrate;
at least one pair of switch contacts being layered on said substrate in said prescribed locations;
a conductive pattern also being layered on said substrate interconnecting said electrochemical display with said switch contacts;
each of said mounting pieces including a conductive medium for completing a conductive path through said switch contacts;
said at least one irreversible electrochemical display supporting an electrochemical reaction for irreversibly changing between display states; and
said at least one electrochemical display being arranged to irreversibly change between said display states in response to said mounting pieces being mounted in at least one of said prescribed locations on the substrate. - View Dependent Claims (33, 34, 35, 36)
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37. An interactive electrochemical display assembly including three electrochemical cell layers, two of said electrochemical cell layers are electrode layers, one of said electrochemical cell layers is an electrolyte layer, and at least two of said electrochemical cell layers are mounted together on a common substrate;
- a graphic image is overlapped by one of said two electrode layers; and
said two electrochemical cell layers are combined with a third of said electrochemical cell layers in a manner that completes an ionically conductive pathway between said two electrode layers and that initiates an electrochemical reaction that clears said overlapping electrode layer to reveal said graphic image. - View Dependent Claims (38, 39, 40, 41, 42, 43, 44, 45)
- a graphic image is overlapped by one of said two electrode layers; and
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46. An interactive electrochemical display assembly comprising:
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two electrode layers having different electrode potentials;
an ionically conductive pathway between said two electrode layers;
and electronically conductive pathway between said two layers;
one of said electrode layers overlapping a graphic image;
said two electrode layers and said two pathways being distributed between at least two disconnected substrates interrupting at least one of said two pathways; and
said two disconnected substrates being connectable for completing the interrupted pathway and for producing an electrochemical reaction that erodes said overlapping electrode and reveals said graphic image. - View Dependent Claims (47, 48, 49, 50, 51, 52)
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53. An interactive display cell comprising:
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two electrode layers and a graphic image overlapped by one of said electrode layers;
an opening that exposes the two electrode layers for contact with an electrolyte; and
said display cell being activatable by adding the electrolyte through said opening and triggering an electrochemical reaction that clears said overlapping electrode layer to reveal said graphic image. - View Dependent Claims (54, 55, 56, 57, 58, 59, 60)
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61. An interactive electrochemical display cell comprising:
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two electrodes having different electrode potential and an electrolyte layer mounted on a common substrate;
a graphic image overlapped by one of said electrodes;
a pair of electrical contacts interrupting an electronically conductive pathway between said electrodes; and
said electrodes being exposed so that said common substrate can be folded together to complete the electronically conductive pathway in support of an electrochemical reaction that erodes said overlapping electrode and reveals said graphic image. - View Dependent Claims (62, 63)
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64. A series of printed indicators made by an in-line process comprising:
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a flexible web having a length;
a series of irreversible electrochemical displays that upon activation evolve from a first state to a second state;
a series of switches for activating said electrochemical displays; and
said electrochemical displays and said switches being printed in layers along said length of the web. - View Dependent Claims (65, 66, 67, 68, 69, 70, 71, 72, 73)
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Specification