LCD液晶拚接大屏是LiquidCrystalDisplay的簡稱,LCD的(de)構(gou)造(zao)是(shi)在(zai)兩(liang)片(pian)平(ping)行(xing)的(de)玻(bo)璃(li)當(dang)中(zhong)放(fang)置(zhi)液(ye)態(tai)的(de)晶(jing)體(ti),兩(liang)片(pian)玻(bo)璃(li)中(zhong)間(jian)有(you)許(xu)多(duo)垂(chui)直(zhi)和(he)水(shui)平(ping)的(de)細(xi)小(xiao)電(dian)線(xian),透(tou)過(guo)通(tong)電(dian)與(yu)否(fou)來(lai)控(kong)製(zhi)杆(gan)狀(zhuang)水(shui)晶(jing)分(fen)子(zi)改(gai)變(bian)方(fang)向(xiang),將(jiang)光(guang)線(xian)折(zhe)射(she)出(chu)來(lai)產(chan)生(sheng)畫(hua)麵(mian)。LCD由(you)兩(liang)塊(kuai)玻(bo)璃(li)板(ban)構(gou)成(cheng),厚(hou)約(yue)一(yi)毫(hao)米(mi),其(qi)間(jian)由(you)包(bao)含(han)有(you)液(ye)晶(jing)材(cai)料(liao)的(de)五(wu)微(wei)米(mi)均(jun)勻(yun)間(jian)隔(ge)隔(ge)開(kai)。因(yin)為(wei)液(ye)晶(jing)材(cai)料(liao)本(ben)身(shen)並(bing)不(bu)發(fa)光(guang),所(suo)以(yi)在(zai)顯(xian)示(shi)屏(ping)兩(liang)邊(bian)都(dou)設(she)有(you)作(zuo)為(wei)光(guang)源(yuan)的(de)燈(deng)管(guan),而(er)在(zai)液(ye)晶(jing)顯(xian)示(shi)屏(ping)背(bei)麵(mian)有(you)一(yi)塊(kuai)背(bei)光(guang)板(ban)和(he)反(fan)光(guang)膜(mo),背(bei)光(guang)板(ban)是(shi)由(you)熒(ying)光(guang)物(wu)質(zhi)組(zu)成(cheng)的(de)可(ke)以(yi)發(fa)射(she)光(guang)線(xian),其(qi)作(zuo)用(yong)主(zhu)要(yao)是(shi)提(ti)供(gong)均(jun)勻(yun)的(de)背(bei)景(jing)光(guang)源(yuan)。
背bei光guang板ban發fa出chu的de光guang線xian在zai穿chuan過guo第di一yi層ceng偏pian振zhen過guo濾lv層ceng之zhi後hou進jin入ru包bao含han成cheng千qian上shang萬wan液ye晶jing液ye滴di的de液ye晶jing層ceng。液ye晶jing層ceng中zhong的de液ye滴di都dou被bei包bao含han在zai細xi小xiao的de單dan元yuan格ge結jie構gou中zhong,一yi個ge或huo多duo個ge單dan元yuan格ge構gou成cheng屏ping幕mu上shang的de一yi個ge像xiang素su。在zai玻bo璃li板ban與yu液ye晶jing材cai料liao之zhi間jian是shi透tou明ming的de電dian極ji,電dian極ji分fen為wei行xing和he列lie,在zai行xing與yu列lie的de交jiao叉cha點dian上shang,通tong過guo改gai變bian電dian壓ya而er改gai變bian液ye晶jing的de旋xuan光guang狀zhuang態tai,液ye晶jing材cai料liao的de作zuo用yong類lei似si於yu一yi個ge個ge小xiao的de光guang閥fa。在zai液ye晶jing材cai料liao周zhou邊bian是shi控kong製zhi電dian路lu部bu分fen和he驅qu動dong電dian路lu部bu分fen。當dangLCD中zhong的de電dian極ji產chan生sheng電dian場chang時shi,液ye晶jing分fen子zi就jiu會hui產chan生sheng扭niu曲qu,從cong而er將jiang穿chuan越yue其qi中zhong的de光guang線xian進jin行xing有you規gui則ze的de折zhe射she,然ran後hou經jing過guo第di二er層ceng過guo濾lv層ceng的de過guo濾lv在zai屏ping幕mu上shang顯xian示shi出chu來lai。
LCD拚接(液晶拚接)是繼DLP拚接、PDP拚接之後,近幾年興起的一項新的拚接技術,LCD液晶拚接大屏具有低功耗、重量輕、壽命長、無輻射、huamianliangdujunyundengyoudian,danqizuidadequedianjiushibunengzuodaowufengpinjie,duixianshihuamianyaoqiufeichangjingxidexingyeyonghulaishuo,shaoweiyoudianyiyihan。youyuyejingpingzaichuchangshijiuhuiyouyitiaobiankuang,yejingpinjieqilaijiuhuichuxianbiankuang,rudangeershiyicundeyejingpingdebiankuangyibanyouliudaoshihaomi,lianggeyejingpingjieqilaidefengjiuyoushierdaoershihaomi。weilejianshaoyejingpinjiedefengxi,muqianyeneiyoujizhongzuofa,yizhongshizhaifengpinjie,lingyizhongshiweifengpinjie,weifengpinjiejichangshangjiangmaihuilaideyejingpingdewaikechaidiao,jiangboliyubolizhijianjinxingpinjie,danzhezhongzuofadefengxianxingjiaoda,ruguoyejingpingchaidebuhao,huisunhaidaozhenggeyejingpingdepinzhi,muqianguoneiyoujishaoshuchangshangshiyongzhezhongfangfa。
目前,LCD液晶拚接最常見的液晶尺寸有40寸、42寸、46寸、47寸、55寸、60寸,它可以根據客戶需要任意拚接,最大可達到10X10拚接,采用背光源發光,壽命長達五萬小時。其次,液晶的點距小,物理分辯率可以輕易達到高清標準;另外,液晶屏功耗小,發熱量低,40寸以上的液晶拚接屏,其功率也不過150W左右,大約隻有等離子的1/4,且運行穩定,維護成本低。
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