Indlela yokukala i-diagonal ye-TV nokuthi ungayikhetha kanjani ekamelweni

I-diagonal ye-TV – kuyini, indlela yokukhetha nokulinganisa ngamasentimitha namasentimitha. Lapho bethenga i-TV, bafuna ukukhetha enikeza umuzwa wokunethezeka wokubuka. Okokuqala, bacabanga ngekhwalithi yesignali yethelevishini engenayo, ukuboniswa kwemibala ehlukahlukene kanye nemithunzi esikrinini, inani lamaphikseli asetshenzisiwe kanye nobuchwepheshe bokukhiqiza isikrini. Lezi zici zibalulekile, kodwa udinga ukuqonda ukuthi nge-diagonal yesikrini ekhethiwe ngokungalungile, ukubuka akukwazi nje ukungakhululeki, kodwa futhi kudala umthwalo owandayo emehlweni.
Ukuze uqinisekise ukubuka okunethezekile, kuyadingeka ukuthi ungabheki nje ubukhulu besikrini, kodwa futhi nobukhulu kanye nokuma kwegumbi lapho i-TV ifakwe khona. Inani elikhulu kakhulu lizokwenza ukuthi isithombe sibe nemininingwane eminingi, nemininingwane eheha ukunaka kwasekuqaleni, futhi ukuze ubone isithombe sisonke, kuzodingeka ucindezele. Uma ubuka esikrinini esincane kakhulu, uzodinga ukubuka njalo, okuzophazamisa ukuhanjiswa ngokwako futhi kudale ubunzima bamehlo. Abanye abantu bacabanga ukuthi usayizi wesikrini omkhulu ubukeka uhloniphekile, kodwa uma ubuka eduze noma ekamelweni elincane, i-TV encane ingaba lula kakhulu. Ngakho-ke, ukunquma i-diagonal oyifunayo kuyiphuzu elibalulekile kwinqubo yokukhetha i-TV.

Ungakala kanjani i-diagonal ye-TV ngamasentimitha nama-intshi

Njengoba wazi, isikrini se-TV sinesimo esingunxande. Ukukhombisa ubukhulu bayo, ungaveza ubude nobubanzi noma unikeze usayizi we-diagonal yayo. Inketho yokugcina iyindlela ethandwa kakhulu yokucacisa inani layo. Emazweni ahlukene omhlaba, amayunithi okulinganisa ubude angase ahluke. Isibonelo, emazweni amaningi aseYurophu kuyisiko ukusebenzisa uhlelo lokulinganisa lwe-SI, lapho iyunithi evamile iyimitha noma okuphuma kuyo (kuhlanganise nesentimitha). E-United Kingdom nase-United States, ukusetshenziswa kwamasentimitha ukukala ubude kusabalele. Ngokwesiko, kulawa mayunithi lapho i-diagonal yesikrini ikalwa khona.

I-intshi engu-1 ilingana no-2.54 amasentimitha. Ngokuvumelana nalokho, isentimitha elingu-1 lingu-0.3937 amayintshi. Usebenzisa lezi zilinganiso, ungamela amanani ashiwo ngamayintshi ngamasentimitha noma uwaguqule abuyele emuva. Isibonelo, uma ubude be-diagonal bungamayintshi angu-40, khona-ke ukuze uguqulele kumasentimitha, le nombolo kufanele iphindwe ngo-2.54. Ngenxa yalokho, inani elifunekayo lizoba amasentimitha angu-101.6.

[i-id yamagama-ncazo = “okunamathiselwe_10791″ align=”aligncenter” width=”716″] Iguqula
amayintshi abe amasentimitha[/caption] Lapho ukhetha imodeli enodiagonal edingekayo, udinga ukucabangela ukuthi usayizi wesamukeli se-TV uzoba kancane. yeqa inani elishiwo ngobuningi bohlaka olusetshenzisiwe. Kumamodeli anamuhla, avame ukuba nogqinsi oluncane kakhulu. Ngezansi kunethebula lokuguqulwa libe amasentimitha osayizi besikrini abadume kakhulu. [i-id yamagama-ncazo = “okunamathiselwe_10777” align = “aligncenter” wide = “489”]
I-TV edayagonali ngo-cm kanye nethebula lama-intshi [/ amazwibela] Kufanele kukhunjulwe ukuthi akubona bonke abakhiqizi abaqonda ngokulinganayo ukuthi iyini idayagonali yesikrini. Abanye bacabangela usayizi wesikrini, isibonelo, ukusuka phansi kwesokunxele kuye phezulu kwesokudla. Ezinye zisho kuphela ingxenye ewusizo yesikrini noma usayizi we-TV, okuhlanganisa nobubanzi bohlaka. Ngaphambi kokuthenga, udinga ukuthola ukuthi lisho ukuthini ibanga kuleli cala. Osayizi besikrini abahlukene: Uma ucabangela ubude nobubanzi besibonisi, ungathola usayizi we-diagonal uma usebenzisa i-theorem ye-Pythagorean. Uthi isamba sezikwele zemilenze (kulokhu sikhuluma ngobude nobubanzi besikrini) silingana nesikwele se-hypotenuse (diagonal). Lapho ubala, udinga ukunaka ukuthi yimaphi amayunithi asetshenziswayo futhi uhumushe izinombolo eziwumphumela zibe yifomu oyifunayo. Ukusebenzisa i-theorem ye-Pythagorean:
Uma ubala ubukhulu, udinga ukucabangela isilinganiso sobude nobubanzi besikrini. Enye edume kakhulu yi-9:15 ratio.
Esimweni esinjalo, imingcele ecacisiwe ingabalwa ngokunembile eduze kwe-diagonal. Ungasebenzisa futhi i-theorem ye-Pythagorean kulokhu. Bhala isibalo esilandelayo kwesinye esingaziwa.
Lesi sisho singalethwa efomini elilinganayo.
Kufomula ewumphumela, ungathola u-X futhi uyisebenzise ukubala ubude nobubanzi besikrini, uphindaphinde, ngokulandelana, ngo-9 noma 16.

Guqula i-cm ibe amayintshi futhi ngokuphambene nalokho

Ukusebenzisa amayintshi ukulinganisa osayizi besikrini kuvamile, kodwa akuwona wonke umuntu onethezekile. Ukuze uguqule amayintshi abe amasentimitha, phinda inani elihambisanayo ngo-2.54. Ukuguqulwa okuphambene (ukuguqula amasentimitha abe amayintshi) kwenziwa ngokuhlukanisa ngo-2.54. Ngezinye izikhathi ukwenza uguquko kulula kakhulu ukungenzi izibalo, kodwa ukusebenzisa itafula elihambisanayo. Isilinganiso samayintshi namasentimitha:

Osayizi besikrini ne-diagonal

Nakuba ubukhulu be-diagonal yesikrini buvame ukuboniswa, lapho ukhetha kubalulekile ukwazi ubude bayo, ububanzi kanye ne-aspect ratio. Le datha iyatholakala emibhalweni yezobuchwepheshe ehambisana naso. Nokho, ngezinye izikhathi inani le-diagonal liboniswa egameni lemodeli ehambisanayo. Ngokuvamile amadijithi amabili okuqala egameni asetshenziselwa lokhu. Usayizi we-diagonal, ububanzi nobude besikrini kuhlobene, njengoba ezimweni eziningi kusetshenziswa isilinganiso esinqunyiwe. Omabonakude bokuqala basebenzisa i-aspect ratio engu-1:1. Ngokuthuthuka kobuchwepheshe kanye nokufika kobuchwepheshe obusha bokudala izikrini, u-5:4, 4:3, kanye no-16:9 waqala ukusetshenziswa. Manje okudume kakhulu ngu-16:9 kanye no-21:9.

Indlela yokukala usayizi we-diagonal ngendlela efanele

Ukuze unqume usayizi we-diagonal, kuyadingeka ukukala ubude beyodwa yama-diagonal amabili wesibonisi, isibonelo, leyo egijima ukusuka ekhoneni elingezansi kwesokunxele kuya kwesokudla esiphezulu. Uma ubude bunqunywa ngamasentimitha, inani eliwumphumela kufanele lihlukaniswe ngo-2.54. Uma uqhathanisa nedatha yomkhiqizi, kuyadingeka ukucacisa ukuthi izilinganiso ezinjalo zenziwe kanjani. Kufanele kukhunjulwe ukuthi ngezinye izikhathi asikhulumi ngesikrini kuphela, kodwa ngobukhulu be-diagonal yecala. Esimweni esinjalo, lapho uqhathanisa, uzodinga ukulungisa okufanele.

Indlela yokukhetha i-diagonal ye-TV yamakamelo ahlukene, izindawo, ibanga le-TV nokucabangela amanye amapharamitha

Ukubaluleka kokukhetha usayizi ofanele we-diagonal kungenxa yezizathu ezilandelayo:

1. Ubukhulu obufanele be-TV buzoqinisekisa ukubukwa okunethezeka kwezinhlelo iminyaka eminingi.
2. Izinga eliphezulu kakhulu lesithombe esiwumphumela lifinyelelwa ebangeni elithile, elizoba lilungile. Uma ubheka eduze, khona-ke imininingwane yesithombe ingase ivelele kakhulu, uma ubheka phambili, kuyoba nzima kakhulu ukubona ividiyo ngokugcwele.
3. Ukubuka izinhlelo ze-TV njalo kudala umthwalo obalulekile emehlweni, okuthi ngokuhamba kwesikhathi kuholele ekulimaleni okubukwayo. Ukukhetha okulungile kwebanga lesikrini.
4. Uma kubukwa ngamafomethi ekhwalithi ephezulu, kungase kube nezincomo zobuchwepheshe ezihlobene nenani elincane le-diagonal. Isibonelo, ku-3D idinga okungenani ama-intshi angu-49. Uma usebenzisa i-4K, uzovele udinge isikrini esihambisana nama-50.

Njengomphumela wocwaningo, kuphakanyiswe izincomo mayelana nokukhethwa kwebanga ukuze kubukwe ngokunethezeka. Amabanga amancane naphezulu akhonjisiwe lapha. Le mihlahlandlela ikhonjiswe esithombeni esilandelayo. Ithebula lebanga:
Ngokuvamile umuntu uyazi ukuthi uzoyibeka kuliphi igumbi i-TV. Ubukhulu bayo bukhawulela ibanga ukusakazwa kukamabonakude okungabukwa ngalo. Kumele akhethe i-diagonal ehambisana nezimo ezikhona. Kulokhu, ukukhetha inani eliphakeme elivumelekile kuzokuvumela ukuthi uthole isibonisi sevidiyo sekhwalithi ephezulu kakhulu. Ngezinye izikhathi kusetshenziswa ifomula ekhethekile enquma ubuhlobo phakathi kobukhulu be-diagonal kanye nebanga lapho ukudluliswa kubukwa khona. Ukuze unqume ibanga lokubuka kulo, udinga ukuphindaphinda i-diagonal ngo-3 noma 4. Esinye isici esikhawulela ukukhetha amandla ezezimali omthengi. Ngakho-ke, lapho uthenga, ngezinye izikhathi kunenzuzo enkulu ukuthenga isikrini ngamasentimitha ambalwa amancane, kodwa ngesikhathi esifanayo sitholakala esigabeni samanani athengekayo. Lapho ukhetha, kuyadingeka ukucabangela ikhwalithi yesithombe esiphumela. Uma iphakeme, ungakwazi ukuyibuka ngisho usebenzisa ibanga eliseduze. Amathelevishini ahlinzeka ngekhwalithi engu-720p avamile. Kulokhu, lapho ubuka i-diagonal engama-intshi angu-32 eduze namamitha angaba amabili, uhlamvu lwesikrini lubonakala kakhulu. Uma ukhetha ibanga elikhudlwana, isithombe sizoba sihle kakhulu. Ungasebenzisa ishadi elilandelayo ukuze ukhethe ibanga olifunayo.
Kudingekile ukucabangela ubuchwepheshe ngokuhambisana nokuboniswa okwenziwe. Uma usebenzisa i-LED noma i
-OLED, isikrini siqabuleka ngemvamisa ephezulu, kwenze ukubuka kube ntofontofo ukusuka ebangeni elihlukahlukene. Isithombe sekhwalithi ephezulu nokukhiqizwa kombala kuvumela umbukeli ukuthi abukeke ngokunethezeka cishe kunoma yiliphi ibanga elifanelekile. Izikrini ezisuselwe kubuchwepheshe be-HDR zinikeza ukukhanya okuhle kwesithombe, okuqinisekisa imibala engokwemvelo kakhulu. Uma usebenzisa ama-TV anjalo, ubudlelwano phakathi kobude be-diagonal nebanga lokubuka buyaqina kakhulu. Lapho enquma ukuthi yisiphi isikrini esidingekayo, umuntu kufanele anqume inhloso yokutholwa. Uma kudingekile ekubukweni kweqoqo, kuyanconywa ukukhetha usayizi omkhulu. Uma uthenga, isibonelo, idivayisi yekhishi, i-TV ene-diagonal encane ingase ivele. Uma ukhetha esitolo, kunengqondo ukuma ebangeni elifanayo lapho indlu izobhekwa khona futhi izwakale Sifaneleka kangakanani lesi sibonelo? Ungakhetha kanjani i-diagonal ye-TV efanele: https://youtu.be/eDkmFwW5Wvk Kwesinye isikhathi, lapho ukhetha, ungaqhubeka usuka kule mithetho elandelayo:

1. Ekamelweni elincane, isikrini esine-diagonal esingeqi amasentimitha angu-17 sifanelekile.
2. Ekamelweni elicishe libe ngu-18 sq. amamitha kufanele asebenzise amadivaysi ane-diagonal engadluli amayintshi angama-37.
3. Emakamelweni avulekile (uma indawo ingaphezu kwamamitha-skwele angu-20), izikrini ezilingana amasentimitha angu-40 noma ngaphezulu zifaneleka kangcono.

Kunengqondo ukwenza ukukhetha okunembe kakhudlwana kucatshangelwa izinga lokusakazwa komabonakude. Idivayisi ethengiwe izoba yinto ebalulekile yokuklama kwekamelo. Kudingeka ukukhetha okukodwa okuzohambisana nesitayela sokuklama esikhona. Ngokukhetha okungalungile, imiphumela engathandeki ingase ibe khona. Angase ahlanganise ukukhubazeka okubukwayo, ukomiswa kolwelwesi lwamafinyila lweso, ukucindezeleka kwemisipha ekusebenziseni indawo engakhululekile. Ngezinye izikhathi inhlangano engalungile yokubuka iholela ekwakhekeni kwekhanda elibuhlungu. Usayizi wesikrini okhethwe kahle uzonikeza induduzo iminyaka eminingi yokusetshenziswa. Ukuze uthole indawo efanelekile yesikrini, kubalulekile ukuthi ungakhethi ibanga elifanele kuphela, kodwa futhi ukusetha ubude obufanele kuso. Indawo efaneleke kakhulu yilapho isikhungo sisezingeni lamehlo ezithameli. Isimo sivunyelwe

Ithebula leDiyagonal ye-TV yesikrini esibanzi

Ngaphambilini, ifomethi yokubonisa edume kakhulu bekungu-4:3 wokubukeka kwesilinganiselo. Manje ngokuvamile amafilimu nezinhlelo ze-TV zenziwa ukuze ziboniswe esikrinini esibanzi. Ngakho, umbukeli, lapho ebuka, angakwazi ukubona ngokugcwele okwenzekayo. 16:9 Ishadi Losayizi Wesikrini Esibanzi:
Kufanele futhi kucatshangelwe ukuthi lesi sici singase sihlobane nekhwalithi yesibonisi esinganikezwa. Ifomethi ye-16:9 manje isiba yinto evamile kakhulu. Cishe wonke amamodeli e-TV amasha akhiqizwa ngalesi sici.