Qhov nce ntawm OLED, high-frequency PWM dimming breakthrough mus rau 2160Hz

Dab tsi yog DC dimming thiab PWM dimming? Qhov zoo thiab qhov tsis zoo ntawm CD dimming thiab OLED thiab PWM dimming?

Rau qhovLCD npo, vim hais tias nws siv lub backlight txheej, yog li ncaj qha tswj lub brightness ntawm lub backlight txheej kom txo lub hwj chim ntawm lub backlight txheej tau yooj yim kho qhov screen brightness, no brightness hloov txoj kev yog DC dimming.

Tab sis rau high-endOLED cov ntxaij vab tshausFeem ntau siv tam sim no, DC dimming tsis tsim nyog, yog vim li cas OLED yog lub teeb pom kev ntawm tus kheej, txhua pixel emits lub teeb ntawm nws tus kheej, thiab kev hloov kho ntawm OLED screen lub luminous lub zog yuav ncaj qha rau txhua pixel, 1080P screen muaj ntau tshaj 2 lab pixels.Thaum lub zog qis, qhov hloov pauv me ntsis yuav ua rau lub teeb pom kev tsis sib xws ntawm cov pixels sib txawv, ua rau muaj teeb meem ci thiab xim.Qhov no yog qhov peb hu ua "rag screen".

Lub hom phiaj ntawm qhov tsis sib haum xeeb ntawm DC dimming hauv OLED cov ntxaij vab tshaus, engineers tau tsim PWM dimming txoj kev, nws siv qhov pom qhov seem ntawm tib neeg lub qhov muag los tswj qhov ci ntawm lub vijtsam los ntawm kev hloov mus tas li ntawm "ci ntsa iab-tawm-tshaj npo-ci screen- off screen”.Qhov ntev ntawm qhov screen yog qhib rau ib lub sij hawm, lub brightness ntawm lub siab duanpo, thiab vice versa.Tab sis txoj kev dimming no kuj muaj shortcomings, nws siv nyob rau hauv tsawg brightness, yooj yim ua rau lub qhov muag tsis xis nyob.Tam sim no, 480Hz yog feem ntau siv nyob rau hauv low-brightness PWM dimming nyob rau hauv kev lag luam. Tib neeg lub zeem muag tsis pom stroboscope ntawm 70Hz. .Nws zoo nkaus li tias qhov hloov pauv zaus ntawm 480Hz yog txaus, tab sis peb lub hlwb pom kev tseem tuaj yeem hnov ​​​​stroboscope, yog li lawv yuav tsav cov leeg ntawm lub qhov muag kom kho.Qhov no tuaj yeem ua rau qhov muag tsis xis nyob tom qab siv ntev.Dimming txoj kev yog ib qho tseem ceeb cuam tshuam. mus rau kev nplij siab ntawm kev siv tshuaj ntsuam, thiab nws kuj yog ib qho ntawm kev tsom mus rau kev tshawb fawb kev lag luam hauv ob xyoos dhau los.