Mashandiro anoita Sisitimu yeBacklight paTV dze LED
Pengantar
Matelevisheni e LED (Light Emitting Diode) ave sarudzo inofarirwa nevatengi vazhinji, zvichipa musanganiswa wemhando yepamusoro yemifananidzo, dhizaini inoyevedza, uye simba rinoshandiswa zviri nani zvichienzaniswa nematekinoroji ekare akadai seCRT (Cathode Ray Tube) kana maTV eplasma. Chimwe chezvinhu zvakakosha zvinoita kuti materevhizheni e LED ave emhando yepamusoro isystem ye backlight. Chinyorwa chino chichakurukura mashandiro anoita system ye backlight pamaterevhizheni e LED, kubva papfungwa yekutanga kusvika patekinoroji yazvino inoshandiswa.
1. Pfungwa huru yeBacklight paTV dze LED
Chaizvoizvo, sikirini yeterevhizheni ye LED ine LCD (Liquid Crystal Display), iyo isingagone kuburitsa chiedza yoga. LCD panels inoda imwe sosi yechiedza kuti iratidze mufananidzo wakajeka uye wakajeka. Apa ndipo panotamba basa guru rambi rekumashure, kana kuti rambi rekumashure. Backlight sisitimu yemwenje iri kumashure kana pamucheto we display panel, iyo inovhenekera LCD panel kubva kumashure, zvichiita kuti mufananidzo uonekwe nemuoni.
2. Mhando dzeBacklight
Kune mhando dzakasiyana dzemasisitimu emwenje wemusana anoshandiswa mumaterevhizheni e LED, imwe neimwe ine zvayakanakira nezvayakaipira.
a. LED ine mwenje wekunze
Edge-Lit imhando yemwenje wekumashure uko ma LED anoiswa pamipendero kana kumativi echidzitiro, uye chiedza chinopfuudzwa negwara remwenje riri kuseri kwechiratidziro kuti chivhenekere LCD panel yese.
Keuntungan:
- Dhizaini yakatetepa
- Kuderedza mitengo yekugadzira
Kekurangan:
– Kusafanana kwechiedza; zvimwe zvikamu zvechidzitiro zvinogona kuoneka zvakajeka kana kuti zvakasviba kupfuura zvimwe.
- Kusiyanisa kwakaderera kana tichienzanisa nemasisitimu eFull-Array.
b. LED yakazara
Full-Array inopa ma LED munzvimbo yese yekumashure yeLCD panel, zvichibvumira mwenje wakaenzana uye kugona kugadzirisa nzvimbo dzemwenje imwe neimwe.
Keuntungan:
- Kuenzana kwechiedza kuri nani
- Mazinga ekuenzanisa akakwira kuburikidza netekinoroji yeLocal Dimming
Kekurangan:
- Dhizaini yakakora zvishoma
- Mari yakawanda yekugadzira
c. Kudzikira kwenzvimbo
Kudzima Kwemukati tekinoroji inowanzo shandiswa pamwe chete neFull-Array systems. Iyi tekinoroji inobvumira nzvimbo dzakati dzechiedza chekumashure kudzimwa kana kuderedzwa simba, zvichienderana nezviri kuratidzwa pachiratidziro. Semuenzaniso, nzvimbo dzechidzitiro dzinoratidza mavara matema kana matema dzinogona kuderedzwa simba rechiedza chadzo kana kudzimwa zvachose kuti dziwedzere kusiyanisa uye kudzika kwedema.
3. Mashandiro anoita Sisitimu yeBacklight
Mushure mekunzwisisa mhando dzemwenje wekumashure, ngationgororei mashandiro anoita sisitimu yemwenje wekumashure zvakadzama.
a. LED ine mwenje wekunze
MuEdge-Lit LED system, maLED anoiswa pamucheto wechidzitiro, kungave pamusoro, pasi, kana kumativi. Chiedza chinobva kumaLED aya chinozotungamirirwa kuburikidza nezvinhu zvakatevedzana zvinopenya uye mapuratifomu emwenje kuti aparadzire chiedza pamusoro pechidzitiro chose. Kunyange zvazvo chiri nyore, dambudziko guru rechirongwa ichi nderekuona kuti chiedza chinopararira zvakaenzana pasina 'kubuda ropa' kana 'halo' mhedzisiro mune dzimwe nzvimbo dzechidzitiro.
b. LED yakazara
Muhurongwa hwe LED hwakazara, ma LED anoiswa munzvimbo yese iri kuseri kweLCD panel. Sisitimu iyi ine diffuser yekuparadzira chiedza che LED zvakaenzana pachiratidziro. Nekuti ma LED akapararira zvakaenzana, kugoverwa kwechiedza kuri nani pane Edge-Lit. Uyezve, sisitimu iyi inotsigira tekinoroji yeLocal Dimming, ichibvumira kudzora kwakanyatsojeka pamusoro pemwenje zvichibva pane zviri kuratidzwa, zvichikonzera kunaka kwemufananidzo.
4. Tekinoroji yemazuva ano muBacklight System
Pamwe chete nekufambira mberi kwetekinoroji, masisitimu ekugadzirisa mwenje kumashure pamaterevhizheni e LED akafambirawo mberi zvikuru. Mamwe matekinoroji matsva ekugadzirisa mwenje kumashure anoshandiswa mumaterevhizheni emazuva ano e LED anosanganisira:
a. Madotsi eQuantum
Tekinoroji yeQuantum Dot inosanganisira kushandiswa kwemakristalo e semiconductor anogadzira chiedza kana akasangana nesimba. Quantum Dots inogona kuvandudza kunaka kwemufananidzo nekupa ruvara rwakafara uye rwakarurama. Masisitimu emwenje wemashure anoshandisa Quantum Dots anowanzo kurongwa seFull-Array uye akagadzirwa kuti ashande pamwe chete nemaLED ebhuruu kuti agadzire mavara chaiwo.
b. MicroLED
MicroLED tekinoroji yemunguva yemberi inoshandisa ma LED madiki kwazvo kune imwe neimwe sub-pixel iri pachiratidziro. Kusiyana nema LED akajairwa, MicroLED inogona kugadzira ruvara nechiedza pasina chikonzero cheLCD panel. Kunyangwe ichiri muchikamu chayo chekutanga chekugadzirwa uye ichidhura zvishoma, tekinoroji iyi inovimbisa mhando yemufananidzo inoshamisa ine mavara akanyatsojeka, musiyano mukuru, uye nguva yekupindura nekukurumidza.
c. MiniLED
MiniLED inhanho iri pakati pema LED echinyakare neMicroLED. Iyi tekinoroji inoshandisa ma LED madiki pane ma LED echinyakare, zvichibvumira kutonga kwakanyatsojeka pamusoro penzvimbo dzemwenje. Nenzvimbo dzinodzorwa dzakasiyana, tekinoroji yeMiniLED inotsigira mazinga ekuenzanisa akanyanya uye inoderedza "halo" effect.
5. Kesimpulan
Sisitimu yemwenje yekumashure chinhu chakakosha muhurongwa hweterevhizheni ye LED, ichikanganisa zvakananga kunaka kwemufananidzo. Kubva patekinoroji iri nyore yeEdge-Lit kusvika kumasisitimu akaomarara akadai seFull-Array ine Local Dimming, uye hunyanzvi hutsva hwakaita seQuantum Dots, MicroLED, uye MiniLED, kufambira mberi kwega kwega kwakagadzirirwa kuvandudza kunaka kwemwenje uye kuratidza. Sarudzo yakanakisa inoenderana nezvinodiwa nemutengi wega wega uye bhajeti. Kunzwisisa mashandiro anoita mwenje yekumashure uye mhando dzemwenje yekumashure kunogona kukubatsira kusarudza terevhizheni ye LED inokodzera zvaunoda uye zvaunoda.
