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← ScienceWhich phenomenon causes reduced LCD brightness under strain?
A)Stress-induced birefringence✓
B)Quantum tunneling leakage
C)Thermionic emission enhancement
D)Piezoelectric crystal deformation
💡 Explanation
Strain alters the liquid crystal alignment, because stress-induced birefringence changes polarization and blocks light transmission; therefore brightness decreases rather than changes arising from electrical effects such as leakage or piezoelectric effects.
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