| CPC G06F 3/0412 (2013.01) [G06F 3/0443 (2019.05); G06F 3/0446 (2019.05); G06F 3/047 (2013.01); G02F 1/13338 (2013.01); G06F 3/0448 (2019.05); G06F 2203/04111 (2013.01); H10K 59/40 (2023.02)] | 10 Claims | 

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               1. A touch sensor comprising: 
            a substrate layer; 
                a plurality of sensing electrodes on the substrate layer; and 
                at least one device hole penetrating through one or more of the sensing electrodes, 
                wherein the at least one device hole is configured to be superimposed over a functional device of an image display device which includes at least one of a camera, a speaker, a recorder, an optical sensor, and a lighting device such that the functional device is not positioned in the device hole; 
                the sensing electrodes include first sensing electrodes arranged along a first direction to form a first sensing electrode row and second sensing electrodes arranged along a second direction to form a second sensing electrode column, the first and second directions being perpendicular to each other on the substrate layer; and 
                the device hole is defined by a space between a pair of the neighboring first sensing electrodes and a pair of the neighboring second sensing electrodes. 
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