Capacitive touch sensor with integral EL backlight
AssigneeWorld Properties, Inc.
InventorsMark Seelhammer, Alan Thomas, David Pires, Walter Paciorek
Life of this patent
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Abstract
A personal electronic device includes a programmable display and a programmable keypad, wherein at least one of the programmable display and the programmable keypad includes a capacitive touch sensor and an EL panel in a unitary structure. A conductive layer shields the capacitive touch sensor from the EL panel and can be a separate layer or be incorporated into either the capacitive sensor or the EL panel. The conductive layer includes antimony tin oxide (ATO), other conductive oxide, or a conductive polymer, such as Orgacon™ 3010.
Claims13
A personal electronic device comprising:
- a capacitive touch sensor and an integral EL panel, wherein the sensor and the panel each include conductive layers;
- wherein at least one of the conductive layers is a cured resin selected from the group consisting of conductive resins, resins containing particles of conductive metal oxides, and mixtures thereof.
A personal electronic device comprising:
- a programmable display;
- a programmable keypad;
- wherein at least one of the programmable display and the programmable keypad includes a capacitive touch sensor and an EL panel in a unitary structure.
Dependencies are inferred from the claim text.