Indlela izikrini ze-LCD ezisebenza ngayo nendlela yokukhanyisa isikrini

Thatha ukubonisa i-LOGO njengesibonelo. Okokuqala vula isikrini, bambezela, bese uthumela i-LOGO. Ngalesi sikhathi, lokho umsebenzisi akubonayo kumnyama ngoba i-backlight ayikhanyi. Ngemva kokuthi i-LOGO izinzile, khanyisa ukukhanya kwangemuva ukuze ubone I-LOGO.

I-T2 isikhathi esisuka ku-T-con sikhanyisa amandla siye ekuphumeni kwedatha ye-LVDS, i-T3 isikhathi esisuka kudatha ye-LVDS siye ekukhanyeni okungemuva, futhi i-T4 ne-T5 ukulandelana kokwehla kwamandla okuhambisana ne-T2 ne-T3, futhi i-T7 isikhathi sokuphumula. phakathi kwe-T-con okuphindaphindiwe kokukhanyisa . Ukulandelana kwesikhathi kwe-LVDS kwesikrini kubaluleke kakhulu. Uma ingasethwanga kahle, kuzovela izinkinga ezifana neskrini esifiphaziwe kanye neskrini esiluhlaza esikhanyayo. Ngamanani athile wokusetha wepharamitha ngayinye, sicela ubheke esimisweni sesikrini.

I-backlight power supply imvamisa iwumthombo wamandla omkhulu we-TV. Ngemva kokuvulwa kwamandla amakhulu, ukunyakaza kudinga ukwenza uchungechunge lwemisebenzi yokuqalisa, ukuze i-T2 ngokuvamile ihlangabezane nezidingo. Isikhathi sokukhanya kwangemuva ngokuvamile sidinga ukusetshenziswa ngokuhambisana nesikhathi se-LVDS, futhi zinepharamitha evamile --- isignali yokushintsha ukukhanya kwangemuva. Ngalesi sikhathi, i-T3 idinga ukuhlelwa ngokunengqondo ukuze kuqinisekiswe ukuthi isignali yokushintsha ukukhanya kwe-backlight ingahlangabezana nakho kokubili isikhathi se-LVDS nezidingo zesikhathi sokukhanya kwangemuva.

Imidwebo yokukhanyisa isikrini sekristalu ewuketshezi kanye nemidwebo yesikhathi sokucisha imi kanje (kusukela ekucacisweni kwesikrini):

1. Izingxenyekazi zekhompyutha

okokufaka kwesikrini sekristalu ewuketshezi

1. Ukunikezwa kwamandla kufanele kuhambisane nebanga lamandla kagesi wesikrini esibonisiwe

2. Ukuthi i-frequency yewashi ekhiqizwa i-crystal oscillator circuit ilungile yini, qaphela i-crystal oscillator circuit esebenzayo, udinga ukuhlola i-PCB ukuze ubone ukuthi izintambo zilungile yini.

3. Hlola ukuthi ingabe ukulandelana kokusetha kabusha kwesikrini kuyahambisana yini nokulandelana kokusetha kabusha kokucaciswa kwesikrini

4. Ingabe lukhona ushintsho lwe-waveform ephinikhodi yokuqalisa yesikrini uma ikhanya, njenge-SDA, SCL, CS noma izikhonkwane ze-WR, uma kungenjalo, udinga ukuhlola ukuthi isofthiwe imisiwe yini ngephinikhodi yokuqalisa yesikrini.

i-liquid crystal screen okukhiphayo 

1. Ukuthi i-HSYNC ne-VSYNC zine-waveform

2. Ukuthi iphinikhodi yedatha ye-RGB noma iphinikhodi ye-DATA iyaphuma yini

2. Isofthiwe

1. Lungiselela iphinikhodi yokulawula ukukhanya kwe-backlight yesikrini sesibonisi se-lcd bese uyibiza ukuze uqiniseke ukuthi isikrini singakhanya.

2. Lungiselela iphinikhodi yokusetha kabusha, iphinikhodi yokuqalisa i-SDA, i-SCL, i-CS noma i-WR yesibonisi sesikrini se-lcd, kanye nephinikhodi yokukhipha i-RGB noma ye-DATA

3. Uma isikrini sekristalu ewuketshezi sidinga ukuqaliswa okwengeziwe, shayela ikhodi yokuqalisa yesikrini, ehlinzekwa umphakeli wesikrini. Uma isikrini se-liquid crystal IC siqaliswe ngaphakathi, ngakho-ke ezinye izilawuli ezincane azidingi ukubhala ukulandelana kokuqaliswa kwesikrini, ngaphandle kwalokho kuyadingeka ukuthi uchofoze isikrini ngokuya ngolwazi olunikezwe umhlinzeki wesikrini.

4. Qalisa isikrini sokulungisa iphutha se-crystal crystal futhi ulungise amapharamitha esikrini.