Uma uthengaTV, sivame ukudideka ngamagama anjengokuthi “i-4K resolution” kanye “nezinga eliphezulu lokuvuselela,” kodwa bambalwa abantu abaqaphela ukuthi “iqhawe elingadunyiswanga” elinquma ikhwalithi yesithombe empeleni “isixazululo se-optical” Kalula nje, ikhambi lokukhanya liyiqoqo lezindlela i-TV ezisebenzisayo “ukuphatha ukukhanya”: indlela yokwenza ukukhanya kwakheke izithombe ngokunembile, indlela yokuveza imibala ngendlela engokoqobo, indlela yokugwema ukukhanya okuvela ekukhanyeni… Kufana “namehlo” e-TV, okuthinta ngqo ulwazi lwethu oluyinhloko lokubuka amadrama nama-movie.
I. Okokuqala, cacisa: Yini ngempela elawulwa yisisombululo se-optical?
Cishe yonke imizwa yethu eqondakala kalula lapho sibuka i-TV ihlobene nesisombululo se-optical, esilawula izinto ezintathu kakhulu:
1. Ukukhanya okucacile nobumnyama: Azikho izigcawu ezimnyama ezimpunga noma izigcawu ezikhanyayo ezikhazimulayo. Isibonelo, uma ubuka izigcawu zasemkhathini kuIzinkanyezi eziphakathi, ungahlukanisa imininingwane emnyama ezungeze umgodi omnyama ngaphandle kokuphuphuthekiswa ukukhanya okukhulu kwezinkanyezi;
2. Imibala engokoqobo: Okubomvu kwangempela, okuluhlaza okwesibhakabhaka kwangempela, akukho “ukwakheka kombala” noma “ukushabalala.” Isibonelo, uma ubuka idokhumentari mayelana namahlathi emvula asezindaweni ezishisayo, okuluhlaza okwesibhakabhaka kwamaqabunga kanye nokubomvu okukhanyayo kwezimbali kungabuyiselwa ukuze kubukeke njengoba kunjalo ngokoqobo;
3. Ukuvimbela ukuphazamiseka okunamandla: Angesabi ukukhanya okuzungezile. Isibonelo, uma amakhethini evuliwe emini noma izibani zivuliwe ebusuku, isithombe sihlala sicacile futhi ngeke sinqotshwe ukukhanya.
II. Izinhlobo ezivamile zezixazululo zokukhanya: Ubuchwepheshe obuhlukene, okuhlangenwe nakho okuhluke kakhulu
Njengamanje, izixazululo ze-TV optical ezijwayelekile zihlukaniswe kakhulu ngezinhlobo ezintathu, ngayinye inezimo ezifanele kanye nezidingo zokusebenzisa ezihambisanayo:
1. Isixazululo Esincane Sokukhanya se-LED: “Inkosi yemininingwane” yokulawula ukukhanya okunembile
Lena "inketho evamile" yama-TV e-LCD aphakathi kuya kwaphezulu, ngenzuzo eyinhloko "yokulawula ukukhanya okunembile." Isimiso sayo silula: izinkulungwane zama-LED amancane afakwe ungqimba lwe-backlight ye-TV, futhi la ma-bead ahlukaniswe "ngezindawo ezincane" eziningi - ezindaweni zezithombe ezikhanyayo, ama-bead ezindaweni ezifanele ayakhanya; ezindaweni zezithombe ezimnyama, ama-bead ezindaweni ezifanele ayafiphala noma acishe ngokuphelele.
Isibonelo, uma ubukela isigcawu "se-dark corridor" ku-movie ethusayo, ama-TV endabuko azoba "nama-halo" azungeze imiphetho ye-corridor ngenxa yokulawula ukukhanya okungacacile, okwenza kubukeke kumpunga. Ngokuphambene nalokho, ikhambi le-Mini LED lingacima ngokunembile ubuhlalu obungaphandle kwe-corridor, likhanyise indawo ye-corridor kuphela, okuholela emininingwaneni emnyama ecacile kanye nomoya ogcwele ngokuphelele.
Uhlobo oluthuthukisiwe lwe-“RGB-Mini LED” luvumela ubuhlalu obubomvu, obuluhlaza, nobuluhlaza okwesibhakabhaka ukuthi bukhiphe ukukhanya ngokuzimela, kuqedwe isidingo “sokulungiswa kwemibala exubile” njengezixazululo zendabuko. Lokhu kufeza ukunemba okuphezulu kombala, okuletha okuhlangenwe nakho okumangalisayo lapho ubuka izithombe ezinyakazayo noma amadokhumentari anemibala ecebile.
2. Isixazululo se-Laser TV Optical: “Isilondolozi sesikhala” sabathandi besikrini esikhulu
Isixazululo sokubona sama-TV e-laser sihluke ngokuphelele kuma-TV avamile: esikhundleni "sezikrini ezizikhanyisayo," basebenzisa imithombo yokukhanya kwe-laser ukuze baveze izithombe ezikrinini ezikhethekile. Izinzuzo zayo eziyinhloko "ukonga isikhala, ikhono lesikrini esikhulu," kanye nokugwema ukulimala kwamehlo okuvela ekukhanyeni okuqondile.
Ama-TV e-laser akuqala ayenezinkinga: ayezwela ukukhanya okuzungezile, edinga ukuthi amakhethini adwetshwe emini ukuze abone kahle. Manje, isizukulwane esisha sezixazululo ze-laser optical, ngokusebenzisa "umklamo wendlela yokukhanya" olungiselelwe kanye "nezinto zesikrini," singavimba ukukhanya okuzungezile okungaphezu kuka-80% - ngisho noma izibani zivuliwe futhi amakhethini evuliwe emini, isithombe sihlala sicacile futhi sicacile, singasadingi ukwamukela izimo zokukhanya. Ngaphezu kwalokho, inezidingo zesikhala eziphansi kakhulu, ekwazi ukuveza isikrini esikhulu esingamasentimitha ayi-100 esiqhele ngamasentimitha ayi-10 ukusuka odongeni, okuvumela amakamelo amancane okuphumula ukuthi ajabulele isipiliyoni sezinga lesinema.
3. Isixazululo Esijwayelekile Sokukhanya se-LED: Inketho engabizi kakhulu
Lesi yisisombululo esivamile sama-TV asezingeni lokuqala. Umgomo waso "ukukhanya okujwayelekile kwangemuva," bese kusetshenziswa izihlungi nama-diffuser ukusabalalisa ukukhanya ngokulinganayo. Inzuzo ishibhile futhi ingabizi, ihlangabezana ngokugcwele nezidingo zansuku zonke njengokubuka izindaba namadrama avamile; ububi ukunemba okuncane kokulawula ukukhanya, okuvame ukubonakala ezigcawini ezimnyama ezimpunga kanye nama-halo, okunemba kancane kombala kunezixazululo ezimbili zangaphambilini.
III. Ungayikhetha kanjani ikhambi elibonakalayo lapho uthenga i-TV? Khumbula amaphuzu amathathu alula
Asikho isidingo sokubamba ngekhanda amapharamitha ayinkimbinkimbi — qonda la maphuzu amathathu ukuze ugweme izingibe:
1. Hlola “inani lezindawo ezifiphalisayo” (kuma-TV ama-Mini LED): Ngosayizi ofanayo, izindawo eziningi zisho ukulawula ukukhanya okunembile kanye nemininingwane emnyama ecacile. Isibonelo, i-TV engamasentimitha angu-85 enezindawo ezingaphezu kuka-500 ingahlangabezana nezidingo zokubukwa kwansuku zonke, kuyilapho izindawo ezingaphezu kuka-1000 zifanele labo abafuna ikhwalithi yesithombe ephezulu;
2. Hlola “ikhono lokulwa nokukhanya” (kuma-TV e-laser): Uma uthenga, buza mayelana “nesilinganiso sokungafani kokukhanya okuzungezile,” noma uvivinye ngqo esitolo lapho izibani zivuliwe. Esithembekile sizokuvumela ukuthi ubone ngokucacile imininingwane yesithombe ngaphandle kokukhanya okusobala;
3. Hlola "okuhlangenwe nakho kwangempela kokubuka" (okujwayelekile): Kungakhathaliseki ukuthi amapharamitha amahle kangakanani, kufanele uhlale ubukele mathupha — hlola ukuthi izigcawu ezimnyama zimpunga yini, ukuthi imibala ingokwemvelo yini, nokuthi izigcawu ezikhanyayo ziyakhazimula yini. Leyo efanelana nemikhuba yakho yokubuka iyona engcono kakhulu.
IV. Isifinyezo sokugcina: Izixazululo ezibonakalayo aziyona “imfihlakalo,” kodwa ulwazi olusebenzayo
Eqinisweni, izixazululo zokukhanya akudingeki zibe nzima kakhulu. Inhloso yazo eyinhloko “ukwenza ukukhanya kuqonde kangcono amehlo ethu”: ukuvumela izindawo ezikhanyayo zikhanye, izindawo ezimnyama zifiphale, ukwenza imibala ifane neqiniso, nokusivumela ukuthi sibukele izithombe ngokunethezeka kunoma iyiphi indawo.
Uma uphishekela ikhwalithi yesithombe ephezulu futhi uvame ukubuka ama-movie, khetha ikhambi le-RGB-Mini LED; uma ufuna isikrini esikhulu futhi unegumbi lokuphumula elincane, khetha i-laser yesizukulwane esisha.Isixazululo se-TV; uma ubukela amadrama nsuku zonke futhi unesabelomali esilinganiselwe, ikhambi elijwayelekile le-LED lanele ngokuphelele. Ukuqonda izixazululo ze-optical kuzokuvimbela ekudukisweni “ngamacebo epharamitha” abathengisi lapho uthenga i-TV!
Isikhathi sokuthunyelwe: Disemba-22-2025
