Patent ID: 9064772
Filing Date: 2015-06-23
Classification: G06F,H01L

Abstract:
1. A touch screen system, comprising: an in-cell type optical touch device for displaying images and receiving a light signal; an out-cell type touch device for sensing a finger or a non-optical stylus, the out-cell type touch device being disposed on an outer surface of the in-cell type optical touch device; a first functional unit electrically connected with the in-cell type optical touch device, the first functional unit converting an analog sensing signal received by the in-cell type optical touch device into a first electrical signal; a second functional unit electrically connected with the out-cell type touch panel, an object-sensing signal generated from the out-cell type touch panel being processed by the second functional unit to generate a second electrical signal; and a third functional unit electrically connected with the first functional unit and the second functional unit to analyze the first electrical signal and the second electrical signal and generate valid output signals, wherein the valid output signals comprise both a light spot location and an object touch location detected by the touch screen system, the third functional unit outputs a valid output signal converted from the first electrical signal by the first functional unit, when only the first functional unit outputs the first electrical signal; the third functional unit outputs a valid output signal converted from the second electrical signal by the second functional unit, when only the second functional unit outputs the second electrical signal; and the third functional unit outputs a valid output signal converted only from the first electrical signal, when both the first functional unit outputs the first electrical signal and the second functional unit outputs the second electrical signal.