Should unused second-channel LVDS pins be connected to ground or power on a single-channel Sigma display? - FAQs | Manufacturer of Resistive | PCAP Touch Screen | PenMount Touch Screen Controller - AMT

No. The integration guide states that unused LVDS pins should remain no-connect where defined by the pin table. Do not short unused LVDS pins to ground, power, or another signal. Certified resistive, projected capacitive (PCAP) touch screens and PenMount touch screen controllers meeting international standards, ISO, UL E331240-A1-UL, REACH, and RoHS. All touch screen products are supplied with flexible production quantity and long term support.