Forming a conductive connection between a common electrode of an optical front plane and an electrical contact part of an opposite back plane
First Claim
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1. A method comprising:
- producing a control component for lamination to an optical media component comprising an optical active layer, the control component comprising an array of pixel electrodes and an array of electronic switching devices for controlling the electric potential at said array of pixel electrodes, and a contact element for an electrically conductive connection to a common electrode of said optical media component;
wherein said control component comprises lower and upper conductor layers defining electrodes of said array of electronic switching devices, and said lower layer defines said contact element;
depositing one or more insulating layers over said array of electronic switching devices and said contact element;
forming, at least through the one or more insulating layers, via-holes (a) for electrically conductive connections between the electronic switching devices and the respective pixel electrodes of the pixel electrode array, and one or more via-holes (b) disposed laterally beyond a lateral edge of said optical active layer and extending down to the lower conductor layer for an electrically conductive connection between said contact element and a part of said common electrode beyond said lateral edge of the optical active layer of said optical media component; and
thereafter depositing conductive material to fill said via-holes (a) and said one or more via-holes (b) down to said contact element.
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Abstract
A technique for creating a conductive connection between a contact part (24) of a display back plane (34) and a common electrode (20) of a display front plane (32), comprising the step of compressing a compressible conductive component (30) between the display front plane (32) and the display back plane (34), wherein the method further comprises the step of interposing one or more layers (10, 36) having a low modulus of elasticity not larger than 5 GPa between the contact part (24) and the compressible conductive component (30) prior to the compressing step.
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Citations
12 Claims
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1. A method comprising:
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producing a control component for lamination to an optical media component comprising an optical active layer, the control component comprising an array of pixel electrodes and an array of electronic switching devices for controlling the electric potential at said array of pixel electrodes, and a contact element for an electrically conductive connection to a common electrode of said optical media component;
wherein said control component comprises lower and upper conductor layers defining electrodes of said array of electronic switching devices, and said lower layer defines said contact element;depositing one or more insulating layers over said array of electronic switching devices and said contact element; forming, at least through the one or more insulating layers, via-holes (a) for electrically conductive connections between the electronic switching devices and the respective pixel electrodes of the pixel electrode array, and one or more via-holes (b) disposed laterally beyond a lateral edge of said optical active layer and extending down to the lower conductor layer for an electrically conductive connection between said contact element and a part of said common electrode beyond said lateral edge of the optical active layer of said optical media component; and thereafter depositing conductive material to fill said via-holes (a) and said one or more via-holes (b) down to said contact element. - View Dependent Claims (2, 3, 4, 9, 10, 11)
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5. A control component for laminating to an optical media component comprising an optical active layer, wherein the control component comprises:
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an array of pixel electrodes, an array of electronic switching devices for controlling the electric potential at said array of pixel electrodes, and a contact element for an electrically conductive connection to a common electrode of said optical media component, wherein said control component comprises lower and upper conductor layers defining electrodes of said array of electronic switching devices, and said lower layer defines said contact element; wherein said control component further comprises one or more insulating layers formed over both said array of electronic switching devices and said contact element, and a patterned further conductor layer over said one or more insulating layers, and wherein said patterned further conductor layer defines said array of pixel electrodes, extends down to drain electrodes of said array of electronic switching devices through via holes (a), and also extends down to said contact element through one or more via holes (b) disposed laterally beyond a lateral edge of the optical active layer of the optical media component. - View Dependent Claims (6, 12)
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7. A control component for laminating to an optical media component, wherein the control component comprises:
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an array of pixel electrodes and an array of electronic switching devices for controlling the electric potential at said array of pixel electrodes, and a contact element for an electrically conductive connection to a common electrode of said optical media component, wherein said control component comprises lower and upper conductor layers defining electrodes of said array of electronic switching devices, and said lower layer defines said contact element; wherein said control component further comprises; one or more insulating layers formed over both said array of electronic switching devices and said contact element; and a patterned further conductor layer over said one or more insulating layers, wherein said patterned further conductor layer defines said array of pixel electrodes, and extends down to drain electrodes of said array of electronic switching devices through via holes (a); and
an upper layer of electrically conductive adhesive material over the one or more insulating layers, wherein said upper layer of electrically conductive adhesive material extends down to said contact element through one or more via holes (b) and provides an electrically conductive element co-planar with said array of pixel electrodes, but electrically isolated from said array of pixel electrodes. - View Dependent Claims (8)
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Specification