Makamera a Digital adayambitsa zinthu zambiri zogwiritsa ntchito kujambula, kuphatikizapo kutha kuyang'ana chithunzi chimene mwawombera kuti muwoneke kuti chikuwoneka bwino musanapite ku malo ena. Ngati wina atatsekedwa maso ake kapena ngati mawonekedwe sakuwoneka bwino, mungathe kungosintha chithunzichi. Chinsinsi cha pulogalamuyi ndiwonekera. Pitirizani kuwerenga kuti mumvetse chomwe chiri LCD?
Kumvetsa LCD & # 39; s LCD
LCD, kapena Liquid Crystal Display, ndi luso lowonetsera lomwe limagwiritsidwa ntchito popanga makanema omwe ali kumbuyo kwa pafupifupi makamera onse a digito. Mu kamera yadijito, LCD imagwira ntchito yowonongetsa zithunzi, kusonyeza zosankha zamtundu, ndikutumikira monga chithunzi chowonekera.
Makamera onse a digito ali ndi zojambula zonse zoonetsa maonekedwe. Kwenikweni, chithunzi chowonetseratu chakhala njira yoyenerera yopangira zochitikazo, monga kamera kakang'ono ka makamera a digito tsopano ali ndi zojambulazo zosiyana. Inde ndi makamera a mafilimu, makamera onse amayenera kukhala ndi chithunzi chololeza kukulolani kuti mupange mawonekedwe.
Kuwoneka kwawindo la LCD kumadalira chiwerengero cha ma pixel omwe LCD ikhoza kuwonetsera, ndipo nambalayi iyenera kulembedwa pazithunzi za kamera. Chithunzi chowonetsera chomwe chili ndi mapikseli ambiri a kuthetsa chiyenera kukhala chakuthwa kusiyana ndi chimodzi chokhala ndi pixel angapo.
Ngakhale makamera ena akhoza kukhala ndi chithunzi chowonetsera chomwe chimagwiritsa ntchito zipangizo zamakono zowonetsera kuposa LCD, mawu akuti LCD akhala ofanana ndi masewero owonetsera pa makamera.
Kuwonjezera apo, makamera ena otchuka angagwiritse ntchito zithunzi zojambula pazithunzi kapena zojambula zojambula , pomwe chinsalucho chimatha kupotoka ndi kuchoka ku thupi la kamera.
LCD Technology
Mawonetseredwe a kristalo amadzimadzi amagwiritsira ntchito makompyuta (madzi a kristalo) omwe amaikidwa pakati pa magetsi awiri, omwe ali owonekera. Monga momwe mawonetseredwe amagwiritsira ntchito magetsi ku magetsi, makompyuta a khungu amatha kusintha. Kuchuluka kwa magetsi kumapanga mitundu yosiyanasiyana yomwe imawoneka pa LCD.
Dzuwa lagwiritsiridwa ntchito likugwiritsira ntchito kuwala kumbuyo kwa madzi osanjikiza, kuti mawonetseredwe awonekere.
Chithunzi chowonetsera chili ndi miyandamiyanda ya pixel , ndipo pixel iliyonse idzakhala ndi mtundu wosiyana. Mutha kuganiza za ma pixel awa ngati madontho. Pamene madontho aikidwa pafupi ndi wina ndi mzake, ndi kuphatikizapo ma pixel akupanga chithunzi pazenera.
LCD ndi HD Resolution
HDTV ili ndi chisankho cha 1920x1080, chomwe chimabweretsa ma pixel 2 miliyoni. Paleseli iliyonse yapadera iyenera kusintha maulendo angapo pamphindi iliyonse kuti isonyeze chinthu chosuntha pawindo. Kumvetsa momwe sewero la LCD likugwirira ntchito kukuthandizani kumvetsetsa zovuta za teknoloji yomwe ikugwiritsidwa ntchito popanga mawonekedwe pawindo.
Ndi chithunzi chowonetsera kamera, chiwerengero cha pixel chimayambira pafupifupi 400,000 mpaka mwina milioni imodzi kapena kuposa. Kotero makanema owonetsera kamera samapereka ndondomeko ya HD. Komabe, mukamaganizira kamera kamakono kamakhala pakati pa 3 ndi 4 mainchesi (amayesedwa diagonally kuchokera pakona imodzi kupita kumbali yina), pomwe pulogalamu ya TV imakhala pakati pa 32 ndi 75 mainchesi (kachiwiri imayendera diagonally), mukhoza kuona chifukwa chake kamera mawonedwe amawoneka akuthwa kwambiri. Mukusakanikirana pafupi ndi hafu ya pixels ambiri mu malo omwe ndi ang'onoang'ono kwambiri kuposa TV.
Zina Zogwiritsa Ntchito LCD
Ma LCD akhala mtundu wodabwitsa wa teknoloji yopambana pazaka. Ma LCD amapezeka mafelemu ambiri a digito. Dongosolo la LCD likukhala mkati mwa chimango ndikuwonetsera zithunzi zadijito. Luso lamakono lamakono likuwonekera pa makanema akuluakulu a pawindo, lapulogalamu ya laputopu, ndi ma smartphone.