Unverified75% confidenceTradeoffTime unknown
亮度越高背光效果越明显，但过亮会在墙面形成光斑反而降低画面对比度提升的护眼效果，理想状态是墙面亮度约为屏幕亮度的10%-20%
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Unverified过滤率越高护眼理论上越强但色彩失真和亮度损失越大——高阻隔滤片会降低屏幕亮度10-20%，导致用户手动调高背光反而增加能耗和眩光，日常办公选30-40%阻隔为平衡点81% similarUnverified透光率是评估膜画质影响的核心指标：钢化玻璃膜透光率≥90%为合格，优质产品可达93-95%；低于88%会明显感觉画面变暗发灰，需增大屏幕亮度反而更耗电耗眼81% similarUnverified防窥角度越窄防偷窥越强，但正面观看时屏幕越暗、色彩越失真，且高刷屏叠加防窥膜易出现拖影，追求画质的用户建议选60°微光型而非30°81% similarUnverified透光率是清晰度关键指标，防蓝光膜透光率应≥90%；低于85%会明显发暗、发灰，需调高屏幕亮度反而增加能耗和眼睛负担80% similar
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