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US 2020/0050302 A1Published application
Information handling system narrow bezel touchscreen display touch detection grid
AssigneeDell Products L.P.
InventorsStefan Peana, Laurent Andrew Regimbal
Life of this patent
Estimating the term…
Abstract
A portable information handling system display provides a narrow bezel footprint with a diagonally disposed touch grid that passes touch detection conductive traces from opposing parallel sides of a rectangular protective cover. In one embodiment, the protective cover at the opposing parallel sides folds to the rear of the display to interface the touch grid to one or more cables and a touch controller.
Claims20
A portable information handling system comprising:
- a housing having a rectangular shape with four sides;
- a processor operable to process information;
- a memory interfaced with the processor and operable to store the information;
- a graphics processor interfaced with the processor and memory and operable to generate pixel values from the information that define a visual image;
- a display interfaced with the graphics processor and integrated in the housing, the display operable to apply the pixel values to present the visual image;
- a transparent cover disposed over the display;
- a touch controller interfaced with the processor and operable to determine touches by capacitive effects associated with the touches at conductive traces interfaced with the touch controller;
- and
- a touch detection grid having plural conductive traces integrated in the transparent cover, the touch detection grid conductive traces entering the transparent cover from parallel first and second of the four sides;
- wherein the transparent cover folds along the first and second parallel sides so that the first and second conductive trace interface path are located at the rear side of the transparent cover at a side opposite the touch detection grid.
7 more elements
(canceled)
A method for integrating touch detection in a display, the method comprising:
- integrating a touch detection grid into a protective surface having a rectangle shape, the touch detection grid having a first set of plural conductive traces running parallel to a first diagonal of the rectangle and a second set of plural conductive traces running parallel to a second diagonal of the rectangle, the first and second sets of plural traces having plural intersections;
- routing the first and second sets of conductive traces from the protective surface only at opposing parallel sides of the protective surface rectangle;
- interfacing the conductive traces with a touch controller through a cable only at the opposing parallel sides;
- and
- detecting touches based upon capacitive characteristics at the intersections.
2 more elements
(canceled)
A display comprising:
- plural pixels disposed to illuminate a visual image;
- a protective cover disposed over the display, the protective cover having a rectangular shape;
- a touch detection grid integrated in the protective cover, the touch detection grid having a first set of conductive wires running parallel to a first diagonal of the rectangular shape and a second set of conductive wires running parallel to a second diagonal of the rectangular shape, the first and second set of conductive wires forming intersections;
- and
- a touch controller interfaced with the first and second set of conductive wires and operable to scan capacitance at the intersections to detect touches at the protective surface;
- wherein the conductive wires exit the protective surface to interface with the touch controller through only first and second parallel sides of the rectangular shape, the first set of conductive wires through the first parallel side, the second set of conductive wires through the second parallel side.
3 more elements
(canceled)
Dependencies are inferred from the claim text.