Unverified85% confidenceTradeoffTime unknown

30°防窥膜可视角度更窄、防窥更强但正视透光损失约15-25%导致画面偏暗；60°防窥膜防窥较弱但透光损失约10%左右，日常使用体验更好

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85%

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Long-term

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防窥屏幕膜category

Related Claims

Unverified60°微缝防窥角度侧面遮蔽效果好，但正面观看时也会比普通膜偏暗，户外强光下亮度损失更明显85% similar Unverified隐私膜（防窥膜）通过降低可视角度实现防窥，代价是正视透光率下降约15-30%、屏幕整体变暗，且夜间/低亮度下显示效果明显打折83% similar

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