Abstract: A novel capacitive touch system includes a first controller having a plurality of channels, a first sensor row having a first discrete sensor element and a second discrete sensor element, a second sensor row having a first discrete sensor element and a second discrete sensor element, a first sensor column, a second sensor column, and a first signal line electrically coupling one of the plurality of channels of the controller to both the first and second discrete sensor elements of the first sensor row. In a particular embodiment, the first controller includes a second channel electrically connected to both the first and second discrete sensor elements of the second sensor row.
Abstract: A heater for a display such as a liquid crystal display (LCD). The heater includes a transparent film, a transparent conductive layer formed on a surface of the transparent film, and an optically clear adhesive (OCA) disposed over the conductive layer. The heater may be laminated directly to a rear transparent (e.g., glass) plate of an LC cell of the LCD using the OCA in a manner that is substantially free of air gaps or bubbles between the heater and the LC cell. Front and rear polarizers may be respectively disposed on outside surfaces of the LC cell and the heater.
Abstract: A patterned substrate for a touch screen sensor assembly that includes a plurality of electrodes that are formed from a first transparent conductive layer that has a first surface resistivity. The substrate also has a plurality of traces that may be used to couple the electrodes controller associated with the touch screen sensor assembly. The traces are formed from a second conductive layer that has a second surface resistivity that is less than the surface resistivity of the first conductive layer. The first and second conductive layers may be formed from indium tin oxide (ITO) having different surface resistivities. A second, similarly configured substrate can be provided and may be spaced apart from the first substrate by a dielectric spacer.