US 2025/0053058 A1 · BACKPLANES FOR SEGMENTED ELECTRO-OPTIC DISPLAYS AND METHODS OF MANUFACTURING SAME

Abstract

Method for manufacturing segmented electro-optic display backplanes includes (a) providing a laminate comprising an insulating layer having opposite first and second surfaces and a conductive metal layer having opposite first and second surfaces (the insulating layer second surface is superposed on the conductive metal layer first surface); (b) applying laser energy from a first laser source passing through the insulating layer onto selected portions of conductive metal layer first surface to cause adjacent portions of the insulating layer to be pyrolyzed to form conductive carbon regions; (c) applying laser energy from a second laser source on the insulating layer first surface to pyrolyze selected portions thereof into conductive carbon segments electrically isolated from each other by other portions of the insulating layer. The conductive carbon regions in the insulating layer form vias between each of the conductive carbon segments and one of the selected portions of the conductive metal layer.

Claims26

Dependent claims

A method of manufacturing a backplane for a segmented electro-optic display, comprising:

providing a laminate comprising an insulating layer having opposite first and second surfaces and a conductive metal layer having opposite first and second surfaces, wherein the second surface of the insulating layer is superposed on the first surface of the conductive metal layer;
applying laser energy from a first laser source passing through the insulating layer onto selected portions of the first surface of the conductive metal layer to cause adjacent portions of the insulating layer to be pyrolyzed to form conductive carbon regions;
and
applying laser energy from a second laser source on the first surface of the insulating layer to pyrolyze selected portions of the first surface of the insulating layer into a plurality of conductive carbon segments electrically isolated from each other by other portions of the insulating layer, wherein the conductive carbon regions in the insulating layer form vias between each of the plurality of conductive carbon segments and the conductive metal layer.

1 more element

A backplane for a segmented electro-optic display, comprising:

an insulating layer having opposite first and second surfaces;
a conductive metal layer having opposite first and second surfaces, wherein the second surface of the insulating layer is superposed on the first surface of the conductive metal layer;
a plurality of conductive carbon segments on the first surface of the insulating layer electrically isolated from each other by portions of the insulating layer and formed by applying laser energy from a second laser source on selected portions of the first surface of the insulating layer;
and
conductive carbon vias in the insulating layer electrically connecting each of selected portions of the conductive metal layer to a different one of the conductive carbon segments, said conductive carbon vias formed by applying laser energy from a first laser source different from the second laser source on the first surface of the insulating layer, said laser energy from the first laser source passing through the insulating layer onto the selected portions of the first surface of the conductive metal layer to cause adjacent portions of the second surface of the insulating layer to pyrolyze to form said conductive carbon vias.

2 more elements

Dependencies are inferred from the claim text.

Backplanes for segmented electro-optic displays and methods of manufacturing same

Life of this patent

Backplanes for segmented electro-optic displays and methods of manufacturing same

Life of this patent

Abstract

Claims26