Indlela yokulinganisa i-diagonal yeTV kunye nendlela yokukhetha ngayo kwigumbi

I-diagonal yeTV – yintoni na, indlela yokukhetha kunye nokulinganisa ngamasentimitha kunye neesentimitha. Xa kuthengwa iTV, bafuna ukukhetha enye ebonelela ngamava okubukela ngokukhululekileyo. Okokuqala, bacinga malunga nomgangatho wesignali kamabonwakude engenayo, ukuboniswa kwemibala eyahlukeneyo kunye nemibala kwisikrini, inani leepikseli ezisetyenzisiweyo kunye neteknoloji yokuvelisa isikrini. Ezi mpawu zibalulekile, kodwa kufuneka uqonde ukuba nge-diagonal yesikrini ekhethiweyo ngokungalunganga, ukujonga akukwazi ukungonwabi kuphela, kodwa kudala umthwalo owandisiweyo emehlweni.
Ukuze kuqinisekiswe ukujongwa okukhululekile, kuyimfuneko ukuthabatha ubungakanani besikrini kuphela, kodwa kunye nemilinganiselo kunye nokuma kwegumbi apho i-TV ifakwe khona. Ixabiso elikhulu kakhulu liya kubangela ukuba umfanekiso ube neenkcukacha ezininzi, kunye neenkcukacha ezikhangayo kwindawo yokuqala, kwaye ukuqonda umfanekiso uphela, kuya kufuneka ugxininise. Xa ujonga kwiscreen esincinci kakhulu, kuya kufuneka ujonge rhoqo, nto leyo eya kuphazamisa ukuhanjiswa ngokwayo kwaye idale ubunzima bamehlo. Abanye abantu bacinga ukuba iscreen esikhulu sijongeka siphezulu, kodwa xa ubukele kufutshane okanye kwigumbi elincinci, iTV encinci inokuba lula ngakumbi. Ngoko ke, ukugqiba i-diagonal efunwayo yinto ebalulekileyo kwinkqubo yokukhetha iTV.

Indlela yokulinganisa i-diagonal yeTV ngeesentimitha kunye neesentimitha

Njengoko usazi, isikrini seTV sinemilo yoxande. Ukubonisa imilinganiselo yayo, unokubonisa ubude kunye nobubanzi okanye unike ubungakanani be-diagonal yayo. Inketho yokugqibela yeyona ndlela idumileyo yokuchaza ixabiso layo. Kumazwe ahlukeneyo ehlabathi, iiyunithi zokulinganisa ubude zinokwahluka. Ngokomzekelo, kwiindawo ezininzi zaseYurophu kuqhelekile ukusebenzisa inkqubo yokulinganisa i-SI, apho iyunithi eqhelekileyo iyimitha okanye i-derivatives yayo (kubandakanywa nesentimitha). EUnited Kingdom naseUnited States, ukusetyenziswa kwee-intshi zokulinganisa ubude kuxhaphakile. Ngokwemveli, kukule yunithi apho i-diagonal yesikrini ilinganiswa.

I-intshi e-1 ilingana ne-2.54 yeesentimitha. Ngokufanelekileyo, isentimitha eyi-1 yi-0.3937 intshi. Usebenzisa olu lungelelwaniso, unokumela amaxabiso akhankanyiweyo kwii-intshi zeesentimitha okanye uwaguqulele umva. Umzekelo, ukuba ubude be-diagonal bungama-intshi angama-40, ngoko ukuguqula kwiisentimitha, eli nani kufuneka liphindwe nge-2.54. Ngenxa yoko, ixabiso elifunwayo liya kuba yi-101.6 centimeters.

Xa ukhetha imodeli enediagonal efunekayo, kufuneka uthathele ingqalelo ukuba ubungakanani bomamkeli weTV buya kancinci. gqithisa ixabiso elichaziweyo ngobunzima besakhelo esisetyenzisiweyo. Kwiimodeli zanamhlanje, zihlala zineengqimba ezincinci kakhulu. Apha ngezantsi kukho itafile yoguqulo ukuya kwiisentimitha kwezona sayizi zidumileyo zesikrini.
Idiagonal ye-TV nge-cm kunye netafile yee-intshi [/ caption] Kufuneka kukhunjulwe ukuba asingabo bonke abavelisi abaqonda ngokulinganayo ukuba yintoni idiagonal yesikrini. Abanye bajonga ubungakanani besikrini, umzekelo, ukusuka ezantsi ukuya ngasekhohlo ukuya phezulu. Abanye bathetha kuphela indawo eluncedo yesikrini okanye ubungakanani beTV, kubandakanya nobubanzi besakhelo. Ngaphambi kokuthenga, kufuneka ufumanise ukuba uthini umgama kule meko. Ubungakanani beskrini obahlukeneyo:
Ubungakanani obuhlukeneyo besikrini[/ inkcazo] Xa uqwalasela ubude kunye nobubanzi bomboniso, unokufumanisa ubungakanani be-diagonal ukuba usebenzisa i-theorem ye-Pythagorean. Ubanga ukuba isibalo sezikwere zemilenze (kule meko sithetha malunga nobude kunye nobubanzi besikrini) silingana nesikwere se-hypotenuse (diagonal). Xa ubala, kufuneka uthathele ingqalelo ukuba zeziphi iiyunithi ezisetyenzisiweyo kwaye uguqulele amanani afunyenweyo kwifom efunwayo. Ukusebenzisa i-theorem yePythagorean:
Xa ubala imilinganiselo, kufuneka uthathele ingqalelo umlinganiselo wobude kunye nobubanzi besikrini. Enye yezona zidumileyo ngumlinganiselo we-9:15.
Kwimeko enjalo, iiparamitha ezichaziweyo zingabalwa ngokuchanekileyo kunye ne-diagonal. Ungasebenzisa kwakhona ithiyori yePythagorean kule nto. Bhala lenxaki ilandelayo kwenye ongaziwayo.
Eli binzana linokuziswa ngendlela elinganayo.
Ukusuka kwifomula enesiphumo, ungafumana uX kwaye uyisebenzise ukubala ubude kunye nobubanzi besikrini, ukuphindaphinda, ngokulandelelana, ngo-9 okanye 16.

Guqula i-cm ukuya kwi-intshi kwaye ngokuphambeneyo

Ukusebenzisa i-intshi ukulinganisa ubungakanani besikrini kuyinto eqhelekileyo, kodwa ayinguye wonke umntu okhululekileyo. Ukuguqula i-intshi ukuya kwiisentimitha, phinda-phinda ixabiso elihambelanayo nge-2.54. Ukuguqulwa kokuguqulwa (ukuguqula iisentimitha ukuya kwi-intshi) kwenziwa ngokwahlula ngo-2.54. Ngamanye amaxesha ukwenza iinguqu kulungele ngakumbi ukuba ungenzi izibalo, kodwa ukusebenzisa itafile ehambelanayo. Umlinganiselo wee-intshi kunye neesentimitha:

Ubungakanani beskrini kunye nediagonal

Nangona ubukhulu be-diagonal yesikrini buboniswa ngokuphindaphindiweyo, xa ukhetha kubalulekile ukwazi ubude bayo, ububanzi kunye nomlinganiso wenkalo. Ezi nkcukacha ziyafumaneka kumaxwebhu obugcisa ahamba nale. Nangona kunjalo, ngamanye amaxesha ixabiso le-diagonal liboniswa egameni lemodeli ehambelanayo. Amaxesha amaninzi amasuntswana amabini okuqala egameni asetyenziselwa oku. Ubungakanani be-diagonal, ububanzi kunye nokuphakama kwesikrini kuhambelana, kuba kwiimeko ezininzi kusetyenziswa umlinganiselo we-fixed aspect ratio. Oomabonakude bokuqala basebenzisa umlinganiselo we-1:1. Ngophuhliso lwetekhnoloji kunye nokufika kobuchwepheshe obutsha bokudala izikrini, i-5: 4, 4: 3, kunye ne-16: 9 yaqala ukusetyenziswa. Ngoku ezona zidumileyo yi-16:9 kunye ne-21:9.

Indlela yokulinganisa ubungakanani be-diagonal ngokuchanekileyo

Ukuze unqume ubungakanani be-diagonal, kuyimfuneko ukulinganisa ubude benye yeediagonal ezimbini zesiboniso, umzekelo, lowo uhamba ukusuka kwikona esezantsi ukuya ngasekunene. Ukuba ubude bunqunywe ngeesentimitha, ngoko ixabiso eliphumelayo kufuneka lihlulwe ngu-2.54. Xa kuthelekiswa nedatha yomenzi, kuyimfuneko ukucacisa ukuba imilinganiselo enjalo yenziwa njani. Kufuneka kukhunjulwe engqondweni ukuba ngamanye amaxesha asithethi kuphela ngesikrini, kodwa malunga nobukhulu be-diagonal yecala. Kwimeko enjalo, xa uthelekisa, kuya kufuneka wenze isilungiso esifanelekileyo.

Indlela yokukhetha i-diagonal yeTV kumagumbi ahlukeneyo, iindawo, umgama kwiTV kunye nokuthatha ingqalelo kwezinye iiparameters

Ukubaluleka kokukhetha ubungakanani obufanelekileyo be-diagonal kungenxa yezi zizathu zilandelayo:

1. Imilinganiselo efanelekileyo yeTV iya kuqinisekisa ukujongwa ngokukhululekileyo kweenkqubo iminyaka emininzi.
2. Umgangatho ophezulu womfanekiso obangelwayo ufezekiswa kumgama othile, oya kuba ulungile. Ukuba ujonga ngokusondeleyo, ke iinkcukacha zomfanekiso zinokugqama kakhulu, ukuba ujonga ngakumbi, kuya kuba nzima ngakumbi ukuyiqonda ngokupheleleyo ividiyo.
3. Ukubukela iinkqubo zeTV rhoqo kudala umthwalo obalulekileyo emehlweni, ekuhambeni kwexesha kunokukhokelela ekuboneni. Ukhetho oluchanekileyo lomgama kwisikrini.
4. Xa kujongwa kwiifomathi ezisemgangathweni ophezulu, kunokubakho iingcebiso zobuchwepheshe ezinxulumene nobukhulu obuncinci be-diagonal. Umzekelo, kwi-3D kufuneka ubuncinane ibeyi-intshi ezingama-49. Xa usebenzisa i-4K, uya kuba sele ufuna isikrini esihambelana ne-50.

Njengesiphumo sophando, iingcebiso ziye zacetywa malunga nokukhethwa komgama wokujongwa ngokukhululekileyo. Owona mgama uphantsi kunye nowona mkhulu ubonisiwe apha. Ezi zikhokelo ziboniswe kulo mfanekiso ulandelayo. Itheyibhile yomgama:
Ngokuqhelekileyo umntu uyazi ukuba uza kumbeka kweliphi igumbi umabonwakude. Ubukhulu bayo bunciphisa umgama ekunokubukelwa ngawo usasazo lukamabonakude. Kufuneka akhethe i-diagonal ehambelana neemeko ezikhoyo. Kule meko, ukukhetha elona xabiso liphezulu livumelekileyo liya kukuvumela ukuba ufumane owona mboniso uphezulu wevidiyo. Ngamanye amaxesha kusetyenziswa ifomula ekhethekileyo emisela ubudlelwane phakathi kobukhulu be-diagonal kunye nomgama apho ukuhanjiswa kujongwa khona. Ukumisela uluhlu lokujonga kuyo, kufuneka uphindaphinde i-diagonal ngo-3 okanye 4. Enye into ethintela ukhetho yizakhono zemali zomthengi. Ngoko ke, xa kuthengwa, ngamanye amaxesha kunenzuzo ngakumbi ukuthenga isikrini ii-intshi ezimbalwa ezincinci, kodwa kwangaxeshanye zibekwe kwicandelo lexabiso elifikelelekayo. Xa ukhetha, kuyimfuneko ukuqwalasela umgangatho womfanekiso obangelwayo. Ukuba iphezulu, ngoko ungayijonga nokuba usebenzisa umgama okufutshane. Iithelevishini ezibonelela ngekhwalithi ye-720p ziqhelekileyo. Kule meko, xa ujonga kwi-diagonal yee-intshi ezingama-32 kufutshane kuneemitha ezimbini, i-graininess yesikrini ibonakala ngakumbi. Ukuba ukhetha umgama omkhulu, umfanekiso uya kuba mhle ngakumbi. Ungasebenzisa itshathi elandelayo ukukhetha umgama ofunekayo.
Kuyimfuneko ukuqwalasela iteknoloji ngokuhambelana nomboniso owenziweyo. Xa usebenzisa i-LED okanye i
-OLED, isikrini sihlaziywa ngamaxesha amaninzi, okwenza ukubukela kukhululekile ukusuka kwimigama eyahlukeneyo. Umfanekiso okumgangatho ophezulu kunye nokuveliswa kombala kuvumela umbukeli ukuba ajonge ngokukhululekileyo phantse kuwo nawuphi na umgama ofanelekileyo. Izikrini ezisekelwe kubuchwephesha be-HDR zibonelela ngokukhanya komfanekiso omhle, ziqinisekisa eyona mibala yendalo. Xa usebenzisa iiTV ezinjalo, ubudlelwane phakathi kobude be-diagonal kunye nomgama wokubukela kuba nzima kakhulu. Xa umisela ukuba yeyiphi isikrini esifunekayo, umntu kufuneka amisele injongo yokufunyanwa. Ukuba iyadingeka ekubukeni okuhlangeneyo, kuyacetyiswa ukuba ukhethe ubungakanani obukhulu. Xa uthenga, umzekelo, isixhobo ekhitshini, iTV ene-diagonal encinci inokuvela. Xa ukhetha kwivenkile, kunengqiqo ukuma kumgama ofanayo apho indlu iya kujongwa kwaye ivakale Ufaneleke kangakanani lo mzekelo? Indlela yokukhetha i-diagonal ye-TV efanelekileyo: https://youtu.be/eDkmFwW5Wvk Ngamanye amaxesha, xa ukhetha, unokuqhubeka kule migaqo ilandelayo:

1. Kwigumbi elincinci, isikrini esine-diagonal esingadluli i-intshi ye-17 sifanelekile.
2. Kwigumbi elimalunga ne-18 sq. Iimitha kufuneka zisebenzise izixhobo ezinediagonal engagqithiyo kwi-intshi ezingama-37.
3. Kumagumbi abanzi (ukuba indawo ingaphezulu kwe-20 square metres), izikrini ezihambelana neesentimitha ezingama-40 okanye ngaphezulu zifanelekile.

Kunengqiqo ukwenza ukhetho oluchanekileyo ngakumbi kuthathelwa ingqalelo umgangatho wosasazo lukamabonakude. Isixhobo esithengiweyo siya kuba yinto ebalulekileyo yoyilo lwegumbi. Kuyafuneka ukuba ukhethe enye eya kuhambelana nesitayela soyilo esikhoyo. Ngokhetho olungalunganga, iziphumo ezingathandekiyo zingenzeka. Zinokubandakanya ukukhubazeka okubonakalayo, ukomisa i-mucous membrane yeso, ukuxhatshazwa kwemisipha ekusebenziseni indawo engathandekiyo. Ngamanye amaxesha umbutho ongalunganga wokujonga ukhokelela ekubunjweni kweentloko. Ubungakanani obukhethiweyo besikrini buya kunika intuthuzelo iminyaka emininzi yokusetyenziswa. Ukufumana indawo efanelekileyo yesikrini, kubalulekile ukuba ungakhethi kuphela umgama ochanekileyo, kodwa kunye nokuseta ubude obufanelekileyo kuyo. Eyona ndawo ifanelekileyo kuxa iziko likwinqanaba lamehlo kubaphulaphuli. Imeko ivumelekile

Itheyibhile yeDiyagonal yeTV yeWidescreen

Ngaphambili, eyona fomati yokubonisa idumileyo yayiyi-4:3. Ngoku ngokufuthi iifilimu neenkqubo zikamabonwakude zenziwa ukuze ziboniswe kwiscreen esikhulu. Ngaloo ndlela, umbukeli, xa ejonga, unokubona ngokupheleleyo okwenzekayo. I-16: 9 Itshathi yobungakanani beSkrini esibanzi:
Kufuneka kwakhona kuthathelwe ingqalelo ukuba lo mlinganiso wecala unokuhambelana nomgangatho wokubonisa onokubonelelwa. Ifomathi ye-16: 9 ngoku iya ixhaphake ngakumbi. Phantse zonke iimodeli ezintsha zeTV ziveliswa ngolu hlobo lomlinganiselo.