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try a better grounding on the LCD metal bezel. If the LCD can still recover after a while, it is not too bad. At least there is no latch up of the driver.
Some suggestions:
1. Use striplines whenever possible.
2. Keep clocks and other high-frequency signals at least
one-tenth of an inch away from I/O signals and connectors.
3. Route differential pairs together, so their lengths are
matched and any common-mode noise is cancelled out.
4. Watch out...
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