Project Evidence · System & Compliance
2.86-inch TFT engineered around the equipment’s ESD requirement.
For a French telecommunications equipment project, the compact display and its FPC were reviewed as part of the complete electrical system. The design work focused on controlling the ESD path before equipment-level air-discharge evaluation.
±15 kVAir-discharge requirementApplied at complete-equipment level
POWERED TEST SETUP · 15.0 kV
Design Response
Three targeted FPC changes
The changes address grounding, shielding and coupling paths rather than simply adding a generic protection component.
01Denser GND copperGround copper coverage on the FPC was increased to create a stronger and more continuous return path.
02Conductive shielding tapeConductive tape was added across the critical FPC and shield transition area to improve shielding continuity.
03FPC routing revisionSignal and ground routing were adjusted to reduce susceptible coupling paths and support equipment-level ESD evaluation.
Validation focus
During air-discharge evaluation, the review focuses on whether the display remains powered without abnormal image, flicker or reset, while the connected equipment continues operating normally.
