Zaɓin gidan talabijin don iyalin aiki ne mai wuya, saboda an samo shi na dogon lokaci. Bugu da ƙari, a cikin kasuwar fasahohin telebijin, akwai kamfanoni daban-daban da ke ba da nau'o'i daban-daban. Yau 4k TV, wanda kamfanin kamfanin NHK na Japan ya fara gabatar da shi a shekara ta 2004, yana karuwa sosai.
Wadanne TVs suna tallafawa 4k?
Yawancin mu, za mu zaba don sayen sabon TV, so mu sayi kayan inganci. Kwanan nan, allon mafi kyau shine Full HD tare da ƙuduri na pixels 1920x1080. A farkon karni na 21, an inganta fasahar 4k ko Ultra HD, kamar yadda ake kira. Yanzu, don duba abun ciki na gida a cikin wannan damar, kana buƙatar 4K TV, wanda masu samar da duniya suka samar kamar haka:
- Samsung;
- LG;
- Sony;
- Panasonic;
- Philips.
4k TV - Wanne ne mafi alhẽri?
Ga wadanda suka yanke shawara su zabi TV 4k, ya kamata ka gano abubuwan da suka dace da waɗannan samfurori. Hoton, wanda aka nuna a kan allon Ultra HD, yafi cikakkun bayanai kuma ya fi dacewa, kuma launuka sun fi cikakke da zurfi idan aka kwatanta da su a cikin cikakken HD, wanda ke taimaka wajen haifar da matsakaicin iyakar gaban mai kallon. Saurin sauyawa daga wata inuwa zuwa wani a fuskar allon talabijin na 4k ya bada izinin mai kallo yayi la'akari da launuka iri-iri. Mafi yawan samfurori mafi kyau shine sanannun alamun duniya.
Matrix 4k TVs
A kasuwa na yau da kullum na talabijin 4k, nau'o'i biyu na matrices sune mamaye: VA da IPS, wadanda ke da amfani:
- Aikin VA (Alignment Vert) matrix aligns da image a tsaye. Ruhun lu'ulu'u na ruwa, wanda yake tsaye a kan fuskar TV, samar da cikakken launi. Kirasti masu sauƙaƙe suna taimakawa wajen gaskiyar cewa hoton ba ya gurbata lokacin canza yanayin dubawa. Tsarabi da irin wannan matrix suna da kyau ga dakunan da rashin haske.
- Lambar IPS (In-Plane Switching) - dukkanin kullun suna juya a lokaci ɗaya kuma suna cikin wannan jirgin sama daidai da allon. Yana bayar da babban ra'ayi, babban mahimmanci da haske, zurfin launi. Duk da haka, talabijin tare da ƙudurin 4k, wanda yana da irin wannan matrix, yafi tsada fiye da sauran nau'ikan.
Taswirar TV allon 4k
Yanke shawarar sayen TV 4k, kana buƙatar sanin abin da ƙuduri (lambar pixels ko pixels da suke ɗaukar hoton) daga samfurin da ka zaba. Gidan telebijin na sabon ƙarni 4k yana da tsawo na 3840x2160, wanda shine sau hudu mafi girma fiye da cikakkiyar model na FullHD. Tun da pixels akan wannan allon sunfi girma, kuma girmansu suna ƙananan, muna ganin haske da karin hoto wanda ke da cikakkun hoto tare da bayyana jerin abubuwa.
TV da 4k ƙuduri yana da rabo mai girman yanayin 16: 9. An yi imanin cewa mafi girma da ƙuduri, mafi kyau da TV. Duk da haka, wannan ba koyaushe batu. Idan aka karbi siginar rauni a cikin wani gidan talabijin mai ƙaura, misali, TV a kan iska, to yana buƙatar karin aiki na musamman, kuma hoton da ke kan allon yana iya zama maras nauyi. Saboda haka, lokacin da sayan TV ta 4k, tabbas ka duba kantin sayar da kantin sayar da kyauta.
Rating 4k TVs
Idan kana so ka gano abin da TV za ta zabi 4k, to, za ka iya yin hakan ta hanyar nazarin darajar model daga masana'antun daban-daban:
- LG 43UH603V - mafi yawan lissafin kudi, wanda yana da inganci 43 na inganci da kuma tsarin Smart TV . Mai girma don kunna fayilolin bidiyo mai nauyi.
- Samsung - UE50KU6000K - mai ladabi TV tare da babban diagonal, wanda yana da hasken rana na dukan allon da kuma daidaitaccen haske.
- LG OLED55C6V - waɗannan masanan sunyi la'akari da ɗaya daga cikin masu amfani da fasahar HDR. Hoto mai ban sha'awa na wannan talabijin yana ƙaruwa a gaban.
- Philips 49PUS7150 - Mafi kyawun samfurin TV tare da nuna hoton 3D mai kyau.
- SONY KD-65ZD9BU TV - daidai ya nuna a ɗaki mai haske, yayin da yake da mafi girman hoto.
Yaya har yanzu yana da lafiya don kallon talabijin 4k?
Don sanin ko wane nisa don duba 4k TV, kana buƙatar yanke shawarar inda kake sanya shi da kuma inda masu sauraron zasu zauna. Dangane da wannan nisa kuma za ka iya zaɓar madaidaicin launi na TV, wanda zai zama dadi da lafiya don kallon watsa labarai. A lokaci guda kuma, masana suna jayayya cewa mafi girman allo, mafi girman nesa daga gare shi ga mai kallo. Hanya mafi kyau ta kallon talabijin tare da diagonal na 81 cm a nesa na 1.27 m idan kun zauna, ba za ku lura da wasu kananan bayanai ba, kuma kusa - hoto zai zama hatsi.
Sanya TV 4k
Dole ne a kafa kowane sabon TV. Don yin wannan, kana buƙatar amfani da jagorancin jagorancin da ya zo da wannan samfurin. Da yawa TVs tare da goyon bayan 4k da dama sunada tsarin daidaitawa, wanda za'a iya amfani dashi:
- dumi;
- sanyi;
- Daidaitacce;
- Dynamic.
Duk da haka, ba'a bada shawarar yin amfani da yanayin ƙarshe ba don amfani, saboda ya rinjaye launuka zuwa ga ƙananan daki-daki. Jerin saituna sun haɗa da waɗannan alamun:
- Bambanci shine matakin da ake buƙata na launi. Zai fi dacewa don daidaita bambancin siffar girgije: da farko saita shi zuwa matsakaicin, sannan ƙananan matakin don cimma burin.
- Haske shine adadin baki wanda ya zama kusan 50%. Zai dace don daidaita haske a kan kowane hoto na baki.
- Launi - an saka a hoton tare da launi mai launi mai haske. Sa'an nan kuma je zuwa fom din tare da fuskokin mutane kuma cimma wata launi mai launi.
- Sharpness - ya zama ba fiye da 30% ba. Don daidaita shi, zaɓi hoto tare da gefuna mai laushi kuma ƙara yawan wannan darajar har sai halo farawa a kusa da contours.
Ganin TV ta 4k
Lokacin sayen TV 4k, kana buƙatar duba shi:
- Kashe da kuma cikakke cikakkun - gabatar da igiyoyi, kwamandan kulawa, fina-finai masu tsaro, da takardun shaida.
- Bincika don fasalin pixels na TV 4k anyi kamar haka: zamu fara sauke hotunan hotunan zuwa kwakwalwa ta USB, haɗa shi zuwa TV kuma a hankali nazarin hotunan da aka samo. Za'a iya gano pixels da aka karya a kan allo mai launi a cikin nau'i-bambanci.
- Bayani game da daidaituwa na hasken baya - kada a yi la'akari da gradients a kan allon muni. Ana gwada karin bayani game da kewaye da allon a cikin ɗakin duhu, da kuma bambancin bambanci - a kan bango mai kama da juna.
- Ana duba TV don ƙananan ƙananan digiri yana yin tasiri a kan wani samfuri na gradient. A wannan yanayin, sauyawa daga cikin inuwar bazai zama maimaitawa ba ko maras kyau.