Defective display in the laptop?

Hi,

I got a used laptop two days ago, now I have a problem because when I open the display or there are minimal vibrations that the display flickers with all the colors and sometimes like colored filters appear, so to speak unusable, that's because of the BIOS battery or something else?

Would tap on loose contact in the display or in the connection cable of the display to the mainboard. Ergo a hardware defect.