Waa maxay dimming DC iyo PWM?
Wixii ahShaashada LCD,maxaa yeelay waxa ay isticmaashaa lakabka danbeedka,sidaa daraadeed si toos ah u xakamayso dhalaalka lakabka danbe ee laydhka si aad u yarayso awooda lakabka danbeedka waxay si fudud u hagaajin kartaa dhalaalka muraayada,sidan hagaajinta dhalaalku waa DC dimming.
Laakiin heer sare ahShaashado OLEDSida caadiga ah loo isticmaalo wakhtigan xaadirka ah, Dimming DC maaha mid ku habboon, sababta OLED waa shaashad is-iftiinaysa, pixel kastaa wuxuu soo saaraa iftiin madax-bannaan, hagaajinta awoodda iftiinka ee OLED waxay si toos ah u shaqeyn doontaa pixel kasta, 1080P waxay leedahay in ka badan 2 milyan pixels. Marka awooddu hooseyso, isbeddellada yaryar waxay keeni doonaan midabyo aan sinnayn iyo midabyo dhalaalaya oo kala duwan. "Sharaca muraayada".
Iyaga oo ujeedadoodu tahay iswaafajin la'aanta DC Dimming ee shaashadaha OLED, injineeradu waxay soo saareen habka dhimista PWM, waxay isticmaashaa hadhaaga aragga ee isha bini'aadamka si ay u xakamayso iftiinka shaashadda iyada oo loo marayo beddelka joogtada ah ee "screen-off screen-screen-screen".shaashadLaakiin habkan hoos u dhigista ayaa sidoo kale leh cillado, isticmaalkeeda dhalaalka hooseeya, fudud si ay u keento raaxo la'aan indhaha. Waqtigan xaadirka ah, 480Hz waxaa badanaa loo isticmaalaa iftiinka hoose ee PWM ee hoos u dhaca warshadaha. Aragtida bini'aadamka ma ogaan karto stroboscope at 70Hz. Waxay u muuqataa in isbeddelka isbeddelka ee 480Hz ay ku filan tahay unugyada muruqa ee 480Hz, laakiin waxay dareemayaan muruqa muruqa ee ku filan. Indhaha si ay u hagaajiyaan.Tani waxay u horseedi kartaa raaxo la'aan indhaha ka dib isticmaalka dheeraadka ah. Habka dhimista waa arrin muhiim ah oo la xiriirta raaxada isticmaalka shaashadda, sidoo kale waa mid ka mid ah diiradda cilmi-baarista warshadaha labadii sano ee la soo dhaafay.
Waqtiga boostada: Mar-21-2023
