Amakhamera adijithali akhiphe izinto ezinhle kakhulu emhlabeni wezithombe, kufaka phakathi ikhono lokubuka isithombe osanda ukudubula ukuqinisekisa ukuthi ubukeka kahle ngaphambi kokuba uqhubekele kwesinye isenzakalo. Uma othile evule amehlo akhe noma uma ukubunjwa kungabonakali kahle, ungakwazi ukuphinda uqale isithombe. Isihluthulelo salesi sici yisibuko sokubonisa. Qhubeka ufunda ukuqonda ukuthi yini i-LCD?
Ukuqonda i-LCD yekhamera & # 39; s
I-LCD, noma i-Liquid Crystal Display, ubuchwepheshe bokubonisa obusetshenziselwa ukudala izikrini ezihlanganisiwe ngemuva kwawo wonke amakhamera adijithali. Khamera yedijithali, i-LCD isebenza ukubuyekeza izithombe, ukubonisa okukhethwa kukho imenyu, nokukhonza njengendlela yokubukwa bukhoma.
Zonke amakhamera zedijithali aqukethe izikrini ezibonisa umbala ogcwele. Eqinisweni, isikrini sokubukwa sesibe yindlela ekhethiwe yokwakha isimo, njengoba inombolo encane yekhamera yedijithali manje ine-viewfinder ehlukile. Yiqiniso ngama-movie amakhamera, wonke amakhamera kwakudingeka abe nesiboniso sokuvumela ukuthi uhlele isimo.
Ukubukeka kwesikrini se-LCD kuncike kwinombolo yamaphikseli i-LCD engabonisa, futhi le namba kufanele ibhalwe ohlwini lwezimpawu zekhamera. Isikrini sokubonisa esinamaphikseli amaningi wokuxazulula kufanele sibe sobungaphezu kweyodwa ngamaphikseli ambalwa.
Ngisho noma amanye amakhamera angase abe nesibuko sokubukwa esisebenzisa ubuchwepheshe bokubukisa obuhlukile kuneLCD, i-LCD igama liye lalinganafana nezikrini zokubonisa kumakhamera.
Ukwengeza, amanye amakhamera athandwayo angasebenzisa ukubonisa isikrini sokuthinta noma ukubonisa okucacile , lapho isikrini singakwazi ukuguqula futhi sisuke emzimbeni wekhamera.
I-LCD Technology
I-crystal display display isebenzisa uhlaka lwamakhemikhali (i-liquid crystal substance) ebeka phakathi kwamagesi amabili, ecacile. Njengoba isibonakaliso sisebenza ukushayela kagesi kuma electrode, ama-molecule e-liquid crystal change. Inani lemali kagesi inquma imibala ehlukene ebonakala ku-LCD.
I-backlight isetshenziselwa ukufaka ukukhanya ngemuva kwe-crystal layer layer, okuvumela ukuba isibonakaliso sibonakale.
Isibuko sokubonisa siqukethe izigidi zamaphikseli , futhi i-pixel ngayinye izoqukatha umbala ohlukile. Ungacabanga ngalawa maphikseli njengamachashazi ngamanye. Njengoba amachashazi abekwe eduze komunye nomunye futhi ahambelanisiwe, inhlanganisela yamaphikseli enza isithombe esikrinini.
I-LCD ne-HD Resolution
I-HDTV inesinqumo sika-1920x1080, esibangela inani lamaphikseli angu-2 million. Ngamunye wamaphikseli ngamunye kufanele ashintshwe izikhathi eziningi njalo ngomzuzwana ukuze abonise into ehambayo esikrinini kahle. Ukuqonda ukuthi i-screen LCD isebenza kanjani kuzokusiza ukuthi uqonde ukubunzima kobuchwepheshe obusetshenziselwa ukudala isibonisi esikrinini.
Ngesikrini sokubukwa kwekhamera, inani lamaphikseli we-pixels ukusuka ku-400,000 kuya ku-1 million noma ngaphezulu. Ngakho isikrini sokubonisa ikhamera asinikezi isixazululo se-HD ngempela. Noma kunjalo, uma ucabangela isikrini sekhamera ngokuvamile uphakathi kuka-3 no-4 amasentimitha (kulinganiswa nge-diagonally ukusuka ekhoneni eliya ekhoneni elingezansi), kuyilapho isikrini se-TV sivame ukuphakama phakathi kwama-32 no-75 amasentimitha (ubuye ulinganiselwe nge-diagonally), ungabona ukuthi kungani ikhamera ukubukeka kubonakala kubukhali kakhulu. Ucindezela cishe amaphikseli angamahhafu enkampanini ephindwe kabili kunesikrini se-TV.
Okunye ukusetshenziswa kwe-LCD
Ama-LCD asebe uhlobo olujwayelekile kakhulu lokubukeka kwezobuchwepheshe eminyakeni edlule. Ama-LCD avela kuzimele eziningi zesithombe se-digital. Isikrini se-LCD sihlezi ngaphakathi kwesakhiwo futhi sibonisa izithombe zedijithali. Ubuchwepheshe be-LCD bubuye buvele kumathelevishini esikrini esikhulu, izikrini ze-laptop, nezikrini ze-smartphone.