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US 10,474,298 B2Granted
Capacitive based gesture input system
AssigneeMicrochip Technology Incorporated
InventorKeith Edwin Curtis
Life of this patent
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Abstract
A liquid crystal display with integrated capacitive touch sensors has an LCD display with at least one alphanumerical or graphic symbol, and at least one capacitive touch sensor arranged above a display layer or within transparent layers of the LCD display forming the alphanumerical or graphical symbol.
Claims24
An LCD display with integrated capacitive touch sensors comprising:
- an LCD display comprising at least one numeric or alphanumeric symbol formed by a plurality of electrodes;
- at least a first and second capacitive touch sensor arranged above a display layer or within transparent layers of the LCD display forming the at least one numeric or alphanumerical symbol and wherein the at least first and second capacitive touch sensor is associated with a single numeric or alphanumeric symbol and arranged in a layer above the single numeric or alphanumerical symbol such that the at least first and second capacitive touch sensor at least partly covers and overlays the single numeric or alphanumeric symbol.
A method for determining and evaluating an input performed by touching an LCD display comprising:
- arranging a first and second touch sensor pads in a layer above a layer comprising electrodes forming segments of a numeric or alphanumeric symbol of the LCD display wherein the first and second sensor pads are arranged adjacent to each other and associated with and overlay and cover at least a part of an associated numeric or alphanumeric symbol formed by said electrodes;
- determining a gesture performed across the first and second touch sensor pads;
- providing feedback by controlling the LCD display electrodes of the alphanumeric or graphic symbol to display a different numeric or alphanumeric symbol.
An LCD display with integrated capacitive touch sensors comprising:
- an LCD display having a surface and comprising at least one seven segment number formed by seven segment electrodes;
- a first and second electrode pad arranged in a layer above the seven segment electrodes, wherein a combined surface area of the first and second electrode pads has approximately the same size as a size of the seven segment number and substantially overlays a surface portion of the LCD display occupied by the seven segment number.
Dependencies are inferred from the claim text.