Abstract:
A device for touch detection in a touch-screen device includes a surface having a touch-detection area, a plurality of independently controlled and electrically separate drive electrodes, and a plurality of independently controlled and electrically separate sense electrodes. The drive electrodes and sense electrodes define touch locations in the touch-detection area. A touch-detection circuit has a separate connection to each of the drive electrodes and a separate connection to each of the sense electrodes for detecting touches at a touch location in the touch-detection area. The touch-detection circuit controls three or more electrodes at the same time to detect a single sense signal responsive to the controlled three or more electrodes, the three or more electrodes including at least one drive electrode and at least one sense electrode. The device further includes a processor for analyzing the single sense signal and determining a touch at a touch location.
Abstract:
Display apparatus with reduced susceptibility to electro-magnetic interference includes a display including an array of pixels and a ground mesh located in proximity to the display. The ground mesh includes a plurality of electrically connected ground lines located between the pixels, so that electro-magnetic radiation emitted or received by the display is reduced.
Abstract:
A display device includes a display having an array of pixels, the pixels separated by inter-pixel gaps in at least one dimension. Two or more electrodes are located over the display and extend across at least a portion of the array of pixels. The electrodes are separated by an inter-electrode gap. A ground line is located between the electrodes in the inter-electrode gap and between the pixels in an inter-pixel gap.
Abstract:
A display apparatus includes a display having an array of pixels separated by inter-pixel gaps and a touch screen. The touch screen includes a dielectric layer located over the display having first and second electrodes each having a length direction and extending across at least a portion of the array of pixels. Each electrode includes a plurality of electrically connected micro-wires formed in a micro-pattern. The micro-patterns each have a first set of parallel micro-wires oriented at a first angle non-orthogonal to the length direction and a second set of parallel micro-wires oriented at a second angle non-orthogonal to the length direction different from the first angle. The micro-wires of the first and second sets intersect to form an array of electrically connected micro-wire intersections. At least every other micro-wire intersection on the micro-wires of the first set is located between the pixels in the inter-pixel gaps.
Abstract:
A method of making a transparent touch-responsive capacitor apparatus includes providing a transparent conductor precursor structure including a transparent substrate, a first precursor material layer formed over the transparent substrate and a second precursor material layer formed on the first precursor material layer; forming a electrically connected first micro-wires in the first and second precursor material layers; forming electrically connected second micro-wires in a precursor material layer electrically connected to the first micro-wires; and wherein the height of at least a portion of the first micro-wires is greater than the height of at least a portion of the second micro-wires, and wherein the total area occupied by the first micro-wires is less than 15% of the first transparent conductor area and the total area occupied by the second micro-wires is less than 15% of the second transparent conductor area.