iPhone Repair Term
Digitiser
The touch-sensitive layer — separate from the display panel
The digitiser is the touch-sensitive layer bonded to the iPhone display panel. It converts finger position and pressure into digital coordinates the processor can read. If the screen shows a perfect image but registers no touch input — or registers incorrect touches — the digitiser is at fault, not the display. On iPhones, the digitiser and display are bonded together as one assembly.
Why It Matters For Your Repair
Because the digitiser and display are bonded on iPhones, a digitiser fault typically means a full screen assembly replacement. If ghost touch or no-touch persists after a new screen is fitted, the fault has moved to the Touch IC on the logic board — a different and more complex repair. Make sure your technician diagnoses the root cause before replacing parts.
Display vs Digitiser Fault
Dark patches, lines, wrong colours — but touch still works.
Image is perfect — touch doesn’t respond or ghost taps appear.
Related Terms
iPhone touch not responding?
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