一、整機穩定性(包括使用時間、抗干擾等)
液(ye)晶(jing)(jing)拼(pin)接(jie)屏(ping)(ping)(ping)在構成數字告示系統時(shi)(shi),通(tong)(tong)(tong)常(chang)(chang)需要(yao)(yao)天(tian)天(tian)24小(xiao)時(shi)(shi),每年(nian)365天(tian)連續無中斷的(de)(de)(de)通(tong)(tong)(tong)電(dian)(dian)(dian)(dian)(dian)使(shi)(shi)用(yong)(yong)(yong)(而(er)電(dian)(dian)(dian)(dian)(dian)視(shi)(shi)機(ji)通(tong)(tong)(tong)常(chang)(chang)天(tian)天(tian)僅工(gong)作幾小(xiao)時(shi)(shi)),并且某些拼(pin)接(jie)屏(ping)(ping)(ping)的(de)(de)(de)應(ying)用(yong)(yong)(yong)環境可能(neng)較為惡劣,這(zhe)就(jiu)要(yao)(yao)求液(ye)晶(jing)(jing)拼(pin)接(jie)屏(ping)(ping)(ping)的(de)(de)(de)可靠性(xing)和穩定性(xing)更高(gao)。與電(dian)(dian)(dian)(dian)(dian)視(shi)(shi)機(ji)相比而(er)言,在設計(ji)上(shang)(shang)(shang),液(ye)晶(jing)(jing)拼(pin)接(jie)屏(ping)(ping)(ping)的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)流(liu)、功(gong)耗、溫度(du)及抗電(dian)(dian)(dian)(dian)(dian)干擾(rao)、電(dian)(dian)(dian)(dian)(dian)沖擊的(de)(de)(de)能(neng)力和裕度(du)以(yi)(yi)及均(jun)(jun)(jun)勻無故(gu)障使(shi)(shi)用(yong)(yong)(yong)時(shi)(shi)間(jian)均(jun)(jun)(jun)要(yao)(yao)遠(yuan)大于電(dian)(dian)(dian)(dian)(dian)視(shi)(shi)機(ji),同時(shi)(shi)液(ye)晶(jing)(jing)拼(pin)接(jie)屏(ping)(ping)(ping)還必須使(shi)(shi)用(yong)(yong)(yong)全屏(ping)(ping)(ping)蔽金屬(shu)外殼確保電(dian)(dian)(dian)(dian)(dian)磁兼(jian)容和干擾(rao)性(xing)能(neng);在元(yuan)(yuan)器(qi)件(jian)的(de)(de)(de)選型上(shang)(shang)(shang),液(ye)晶(jing)(jing)拼(pin)接(jie)屏(ping)(ping)(ping)使(shi)(shi)用(yong)(yong)(yong)的(de)(de)(de)元(yuan)(yuan)器(qi)件(jian)的(de)(de)(de)耐(nai)壓、電(dian)(dian)(dian)(dian)(dian)流(liu)、溫度(du)、濕度(du)等各方(fang)面特性(xing)都要(yao)(yao)高(gao)于電(dian)(dian)(dian)(dian)(dian)視(shi)(shi)機(ji)使(shi)(shi)用(yong)(yong)(yong)的(de)(de)(de)元(yuan)(yuan)器(qi)件(jian);而(er)在安裝、調試尤其(qi)是(shi)元(yuan)(yuan)器(qi)件(jian)和整(zheng)機(ji)老化(hua)(hua)的(de)(de)(de)工(gong)藝要(yao)(yao)求上(shang)(shang)(shang),液(ye)晶(jing)(jing)拼(pin)接(jie)屏(ping)(ping)(ping)的(de)(de)(de)要(yao)(yao)求也更高(gao),電(dian)(dian)(dian)(dian)(dian)視(shi)(shi)機(ji)制造(zao)時(shi)(shi)整(zheng)機(ji)老化(hua)(hua)通(tong)(tong)(tong)常(chang)(chang)是(shi)在流(liu)水(shui)線上(shang)(shang)(shang)常(chang)(chang)溫通(tong)(tong)(tong)電(dian)(dian)(dian)(dian)(dian)8小(xiao)時(shi)(shi)左右,而(er)液(ye)晶(jing)(jing)拼(pin)接(jie)屏(ping)(ping)(ping)的(de)(de)(de)整(zheng)機(ji)老化(hua)(hua)則需要(yao)(yao)在高(gao)溫、高(gao)濕密閉環境的(de)(de)(de)老化(hua)(hua)流(liu)水(shui)線上(shang)(shang)(shang)通(tong)(tong)(tong)電(dian)(dian)(dian)(dian)(dian)老化(hua)(hua)24小(xiao)時(shi)(shi)以(yi)(yi)上(shang)(shang)(shang),以(yi)(yi)確保整(zheng)機(ji)的(de)(de)(de)穩定性(xing)。普(pu)通(tong)(tong)(tong)的(de)(de)(de)液(ye)晶(jing)(jing)電(dian)(dian)(dian)(dian)(dian)視(shi)(shi)使(shi)(shi)用(yong)(yong)(yong)的(de)(de)(de)LCD液(ye)晶(jing)(jing)屏(ping)(ping)(ping)其(qi)背(bei)光源(yuan)的(de)(de)(de)使(shi)(shi)用(yong)(yong)(yong)壽(shou)命為1萬至3萬小(xiao)時(shi)(shi),而(er)液(ye)晶(jing)(jing)拼(pin)接(jie)屏(ping)(ping)(ping)背(bei)光源(yuan)的(de)(de)(de)使(shi)(shi)用(yong)(yong)(yong)壽(shou)命均(jun)(jun)(jun)可達(da)6-7萬小(xiao)時(shi)(shi)以(yi)(yi)上(shang)(shang)(shang)。液(ye)晶(jing)(jing)拼(pin)接(jie)屏(ping)(ping)(ping)廠家
二、圖像清楚度
液晶拼(pin)(pin)接顯示用具(ju)有直觀(guan)反映圖像(xiang)質(zhi)量的(de)(de)(de)功能(neng),加之全1920*1080分(fen)辨率對于數字告示領域的(de)(de)(de)顯示設備的(de)(de)(de)選用,液晶拼(pin)(pin)接屏(ping)是優(you)先選擇的(de)(de)(de)拼(pin)(pin)接屏(ping),專業拼(pin)(pin)接屏(ping)分(fen)辨率是根據顯示輸出自動調整分(fen)辨率(不(bu)管橫豎都可(ke)(ke)以支持);其高(gao)可(ke)(ke)靠性(xing)和高(gao)清楚顯示能(neng)力將保證您可(ke)(ke)以將記(ji)錄編輯好的(de)(de)(de)高(gao)清楚影(ying)音,視頻信號完整的(de)(de)(de)顯示在觀(guan)看者眼(yan)前。
反之(zhi),液晶(jing)電(dian)視(shi)只支持(chi)說明書中規定的(de)幾種(zhong)電(dian)視(shi)常用(yong)(yong)分(fen)(fen)辨(bian)率。由于民用(yong)(yong)電(dian)視(shi)信號的(de)分(fen)(fen)辨(bian)率只有(you)幾種(zhong),電(dian)視(shi)LCD只要(yao)根據民用(yong)(yong)用(yong)(yong)戶(hu)使用(yong)(yong)的(de)常用(yong)(yong)幾個分(fen)(fen)辨(bian)率進行(xing)效(xiao)果(guo)處理(li),特殊分(fen)(fen)辨(bian)率會導致花屏。
三、色彩還原度
假如(ru)說(shuo)清楚(chu)度(du)主要(yao)是由視頻(pin)通(tong)道的(de)(de)幅(fu)頻(pin)特性決(jue)定的(de)(de)話(hua),還原(yuan)度(du)則主要(yao)由液晶拼(pin)接(jie)屏(ping)中有紅(R)、綠(G)、藍(lan)(B)三(san)基色(se)(se)的(de)(de)色(se)(se)度(du)信(xin)號(hao)和(he)亮度(du)信(xin)號(hao)的(de)(de)相(xiang)位(wei)所決(jue)定。由于液晶拼(pin)接(jie)屏(ping)所觀察的(de)(de)通(tong)常為靜態圖像,因而對拼(pin)接(jie)屏(ping)色(se)(se)彩還原(yuan)度(du)的(de)(de)要(yao)求比(bi)電視機更高,故(gu)專(zhuan)業拼(pin)接(jie)屏(ping)的(de)(de)視放(fang)通(tong)道在亮度(du)、色(se)(se)度(du)處理和(he)R、G、B處理上應(ying)具備(bei)的(de)(de)補(bu)償電路(lu)(lu)和(he)延遲(chi)電路(lu)(lu),以確保亮/色(se)(se)信(xin)號(hao)和(he)R、G、B信(xin)號(hao)的(de)(de)相(xiang)位(wei)同步。
反(fan)之,液(ye)晶電視由于使用環(huan)境要求所至(zhi),圖象是經過潤色處理后進(jin)行顯示。不能完(wan)全真實反(fan)映實際效果。
四、機器材料的使用
由(you)于(yu)使用環(huan)境的(de)要(yao)求,液晶電視機器外(wai)殼(ke)材(cai)質(zhi)部分(fen)采用金屬質(zhi)地。且(qie)內部板線都是產(chan)業(ye)(ye)化(hua)設計,不輕易(yi)老化(hua);節能環(huan)保理(li)念的(de)體現:低能耗設計;環(huan)保材(cai)料使用。規整的(de)外(wai)觀,便(bian)于(yu)拼(pin)接(jie),組(zu)合安裝(zhuang)等產(chan)業(ye)(ye)需要(yao)。
反之,液晶(jing)電視(shi)整(zheng)機外(wai)殼(ke)全部為非金屬材質設計。內部板線是采(cai)用民用設計,長時間開機輕易造成機件老化(hua)。另外(wai)民用電視(shi)外(wai)觀多是非規則外(wai)觀,附(fu)帶數字(zi)標牌拼(pin)接(jie)屏系統(tong)、外(wai)觀圓弧系統(tong)等作為聽(ting)覺和(he)視(shi)覺的附(fu)屬設施(shi),施(shi)工(gong)起來整(zheng)體(ti)美觀和(he)效果都會大打折扣。
五、端口
液晶(jing)拼接(jie)屏多采(cai)用產業端口(kou)例如(ru)RGBBNC的色(se)差帶(dai)自(zi)鎖機構的接(jie)口(kou)和專業的DVI-D視頻接(jie)口(kou);
反之(zhi),液晶電視則(ze)沒有BNC自(zi)鎖色(se)差輸進接口和DVI-D接口;
六、控制接口
液晶拼(pin)接(jie)屏(ping)可采(cai)用S232串(chuan)口控(kong)(kong)制,開放的控(kong)(kong)制口令多(duo)(duo)(duo)達(da)200多(duo)(duo)(duo)條,適應各(ge)種產業環(huan)境。方便多(duo)(duo)(duo)拼(pin)接(jie)屏(ping)使(shi)用時,不用通過遠(yuan)控(kong)(kong)器(qi)就可以控(kong)(kong)制所(suo)有顯示設(she)備,并能夠輔助,定(ding)時開機,延時開機、機器(qi)自檢(jian)等各(ge)種產業要求。
反之,液(ye)晶電視(shi)也可采用S232串口控制(zhi)。但只能實現(xian)遠(yuan)控器所具備的控制(zhi)指令(ling)。并(bing)不(bu)能實現(xian)產(chan)業控制(zhi)。
七、無風扇架構
液(ye)晶拼接屏在設計上(shang)采用無機械(xie)排(pai)風扇來(lai)保(bao)持空(kong)氣流通(tong)和散熱,從而避免由于機械(xie)排(pai)風扇導(dao)致的灰塵和風扇噪音題目,當內部溫度(du)由于不(bu)明原因而升高時,液(ye)晶拼接屏自(zi)動控制背光系(xi)統將溫度(du)保(bao)持在比較高工作溫度(du)之下。
反(fan)之(zhi),液晶(jing)電視由于應用的(de)環境所致,對此無嚴格要(yao)求。
八.亮度
普通(tong)的液晶(jing)電視(shi)亮(liang)度只有200cd/m2,而(er)拼接拼可以(yi)達到450cd/m2或者700cd/m2