Also if you had left the old display in place while desoldering, it would have served as a heat sink and might have prevented the trace from lifting. I did neglect to mention however that we use a 20-watt soldering station for the job, but 45 watts is usually out of the league of electronics work anyway. But yes, as the others have said your board can be repaired. We can do it too but I'm sure others here are equally capable.

Stu