Unverified78% confidenceDecision RuleTime unknown
护眼首选LCD的核心逻辑是无频闪或极高频PWM，但需注意部分LCD低亮度下仍采用低频PWM调光，购买前确认调光频率≥1920Hz或采用DC调光
1
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78%
Confidence
Long-term
Relevance
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Unverified调光方式优先选DC直流恒流调光或高频PWM（＞3125Hz），低频PWM调光（尤其调暗时）会产生肉眼难察觉的频闪，是低价灯的隐藏坑85% similarUnverified护眼看重防频闪时优先选高频PWM调光≥1920Hz或全程DC调光机型，低频PWM（240Hz/480Hz/720Hz）在低亮度下频闪明显，敏感人群会头晕眼胀85% similarUnverified调光方式优先选DC直流调光或高频PWM（≥3125Hz），避免低频PWM调光；低频PWM在肉眼不可见的情况下仍会造成视疲劳累积84% similarUnverified真正无频闪需认准DC调光而非高频PWM调光，PWM调光频率≥3840Hz才能基本消除频闪对眼睛的影响，低于此值长时间使用易疲劳84% similarUnverified无频闪（DC调光或高频PWM≥3000Hz）是护眼核心指标，低频PWM调光在低亮度档位会加重眼疲劳，选购时应确认标注无可视频闪83% similar
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