[討論] CCFL也會閃爍嗎?
大家好,小弟這陣子才開始關注LED背光的PWM問題
在很多討論中都看到CCFL背光不會有這現象,比較不傷眼
剛好這幾天在整理一台古早的Lenovo x200筆電
用AIDA64查詢這台面板是"LTD121EWVB",似乎正是CCFL背光
一時好奇用手機相機去測試一下,但測試結果讓我很驚訝!
我將快門秒數設在1/4000~1s
每一種快門都捕捉得到螢幕閃爍(條紋狀閃爍)
而且,面板亮度從最暗到最亮,閃爍的結果都一樣
但奇怪的是,我用肉眼看看不太出來他在閃啊...
如果連1s的相機快門都抓得到閃爍...肉眼怎會看不到?
因此心中對CCFL面板充滿了疑問
之前以為CCFL不傷眼的原因在於他不會閃
但這台x200不論亮度如何,透過相機看他,從1/4000~1s都在閃
一度以為這台老螢幕快壞了
然而,用肉眼看卻察覺不到閃爍,讓我很不解
在此想請教大家一下
這個x200 CCFL面板的現象正常嗎?
謝謝各位
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