Touchscreen doesn't work after "repair", what part do I need?

I've replaced the complete screen assembly (including frame) of my Sony Xperia Z2 phone, and everything works fine except for the touch part of the screen. I think I knocked out a resistor (or something along those lines) somewhat above and to the right of the display connector, does anyone know what part this is so I can replace it? Picture:

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Thanks in advance!

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