一、整機穩定性(包括使用時間、抗干擾等)
液(ye)(ye)晶(jing)(jing)拼(pin)(pin)接(jie)(jie)(jie)屏(ping)在(zai)構成數字告示系統時(shi)(shi)(shi)(shi),通(tong)(tong)常需(xu)要(yao)天(tian)天(tian)24小時(shi)(shi)(shi)(shi),每年365天(tian)連續無(wu)中斷(duan)的(de)(de)(de)通(tong)(tong)電(dian)(dian)(dian)(dian)使(shi)用(yong)(yong)(而電(dian)(dian)(dian)(dian)視(shi)機通(tong)(tong)常天(tian)天(tian)僅工作幾小時(shi)(shi)(shi)(shi)),并且(qie)某(mou)些拼(pin)(pin)接(jie)(jie)(jie)屏(ping)的(de)(de)(de)應用(yong)(yong)環境(jing)可能(neng)較為(wei)惡劣,這就要(yao)求(qiu)(qiu)(qiu)液(ye)(ye)晶(jing)(jing)拼(pin)(pin)接(jie)(jie)(jie)屏(ping)的(de)(de)(de)可靠性和(he)穩(wen)定性更高(gao)(gao)。與電(dian)(dian)(dian)(dian)視(shi)機相比(bi)而言,在(zai)設計上,液(ye)(ye)晶(jing)(jing)拼(pin)(pin)接(jie)(jie)(jie)屏(ping)的(de)(de)(de)電(dian)(dian)(dian)(dian)流(liu)(liu)、功耗、溫(wen)度(du)及抗(kang)電(dian)(dian)(dian)(dian)干(gan)擾、電(dian)(dian)(dian)(dian)沖擊的(de)(de)(de)能(neng)力和(he)裕(yu)度(du)以(yi)及均勻(yun)無(wu)故(gu)障(zhang)使(shi)用(yong)(yong)時(shi)(shi)(shi)(shi)間均要(yao)遠大于(yu)電(dian)(dian)(dian)(dian)視(shi)機,同時(shi)(shi)(shi)(shi)液(ye)(ye)晶(jing)(jing)拼(pin)(pin)接(jie)(jie)(jie)屏(ping)還必(bi)須使(shi)用(yong)(yong)全屏(ping)蔽(bi)金屬外殼(ke)確保(bao)電(dian)(dian)(dian)(dian)磁兼(jian)容和(he)干(gan)擾性能(neng);在(zai)元器(qi)(qi)件(jian)的(de)(de)(de)選型(xing)上,液(ye)(ye)晶(jing)(jing)拼(pin)(pin)接(jie)(jie)(jie)屏(ping)使(shi)用(yong)(yong)的(de)(de)(de)元器(qi)(qi)件(jian)的(de)(de)(de)耐壓、電(dian)(dian)(dian)(dian)流(liu)(liu)、溫(wen)度(du)、濕(shi)度(du)等各方面(mian)特性都要(yao)高(gao)(gao)于(yu)電(dian)(dian)(dian)(dian)視(shi)機使(shi)用(yong)(yong)的(de)(de)(de)元器(qi)(qi)件(jian);而在(zai)安裝、調試尤其(qi)是元器(qi)(qi)件(jian)和(he)整(zheng)機老(lao)化(hua)(hua)的(de)(de)(de)工藝要(yao)求(qiu)(qiu)(qiu)上,液(ye)(ye)晶(jing)(jing)拼(pin)(pin)接(jie)(jie)(jie)屏(ping)的(de)(de)(de)要(yao)求(qiu)(qiu)(qiu)也更高(gao)(gao),電(dian)(dian)(dian)(dian)視(shi)機制造時(shi)(shi)(shi)(shi)整(zheng)機老(lao)化(hua)(hua)通(tong)(tong)常是在(zai)流(liu)(liu)水線(xian)上常溫(wen)通(tong)(tong)電(dian)(dian)(dian)(dian)8小時(shi)(shi)(shi)(shi)左右,而液(ye)(ye)晶(jing)(jing)拼(pin)(pin)接(jie)(jie)(jie)屏(ping)的(de)(de)(de)整(zheng)機老(lao)化(hua)(hua)則(ze)需(xu)要(yao)在(zai)高(gao)(gao)溫(wen)、高(gao)(gao)濕(shi)密閉環境(jing)的(de)(de)(de)老(lao)化(hua)(hua)流(liu)(liu)水線(xian)上通(tong)(tong)電(dian)(dian)(dian)(dian)老(lao)化(hua)(hua)24小時(shi)(shi)(shi)(shi)以(yi)上,以(yi)確保(bao)整(zheng)機的(de)(de)(de)穩(wen)定性。普通(tong)(tong)的(de)(de)(de)液(ye)(ye)晶(jing)(jing)電(dian)(dian)(dian)(dian)視(shi)使(shi)用(yong)(yong)的(de)(de)(de)LCD液(ye)(ye)晶(jing)(jing)屏(ping)其(qi)背(bei)光源(yuan)的(de)(de)(de)使(shi)用(yong)(yong)壽(shou)命為(wei)1萬至(zhi)3萬小時(shi)(shi)(shi)(shi),而液(ye)(ye)晶(jing)(jing)拼(pin)(pin)接(jie)(jie)(jie)屏(ping)背(bei)光源(yuan)的(de)(de)(de)使(shi)用(yong)(yong)壽(shou)命均可達(da)6-7萬小時(shi)(shi)(shi)(shi)以(yi)上。液(ye)(ye)晶(jing)(jing)拼(pin)(pin)接(jie)(jie)(jie)屏(ping)廠家
二、圖像清楚度
液(ye)晶(jing)拼接(jie)(jie)顯(xian)示用(yong)具有直觀(guan)反映圖像質(zhi)量(liang)的功能(neng)(neng),加之全1920*1080分辨率對于數字(zi)告示領域的顯(xian)示設備的選用(yong),液(ye)晶(jing)拼接(jie)(jie)屏是(shi)優(you)先選擇的拼接(jie)(jie)屏,專業(ye)拼接(jie)(jie)屏分辨率是(shi)根(gen)據顯(xian)示輸(shu)出自動(dong)調整分辨率(不管橫豎都可(ke)以(yi)支持);其高(gao)可(ke)靠性(xing)和高(gao)清楚顯(xian)示能(neng)(neng)力將(jiang)保(bao)證(zheng)您可(ke)以(yi)將(jiang)記錄編(bian)輯好的高(gao)清楚影音(yin),視頻信號(hao)完整的顯(xian)示在觀(guan)看者(zhe)眼前。
反之,液晶電(dian)(dian)視只(zhi)(zhi)支持說明書中規(gui)定的幾(ji)種(zhong)(zhong)電(dian)(dian)視常用(yong)分辨率(lv)(lv)。由于民用(yong)電(dian)(dian)視信號的分辨率(lv)(lv)只(zhi)(zhi)有幾(ji)種(zhong)(zhong),電(dian)(dian)視LCD只(zhi)(zhi)要(yao)根(gen)據民用(yong)用(yong)戶使用(yong)的常用(yong)幾(ji)個分辨率(lv)(lv)進(jin)行效果處理,特殊分辨率(lv)(lv)會(hui)導(dao)致花屏。
三、色彩還原度
假(jia)如說(shuo)清楚度(du)(du)主要(yao)是由視頻通道的(de)(de)幅頻特性決定的(de)(de)話,還(huan)原度(du)(du)則主要(yao)由液(ye)晶拼(pin)接屏中有紅(R)、綠(G)、藍(B)三(san)基色的(de)(de)色度(du)(du)信(xin)號和(he)(he)亮(liang)度(du)(du)信(xin)號的(de)(de)相位(wei)所決定。由于液(ye)晶拼(pin)接屏所觀(guan)察(cha)的(de)(de)通常(chang)為(wei)靜態圖像,因而對拼(pin)接屏色彩還(huan)原度(du)(du)的(de)(de)要(yao)求比電視機更高(gao),故專業拼(pin)接屏的(de)(de)視放通道在(zai)亮(liang)度(du)(du)、色度(du)(du)處(chu)理和(he)(he)R、G、B處(chu)理上應具備的(de)(de)補償電路和(he)(he)延(yan)遲電路,以(yi)確保亮(liang)/色信(xin)號和(he)(he)R、G、B信(xin)號的(de)(de)相位(wei)同步。
反之,液晶電視(shi)由(you)于使用環境要求所至,圖象是經(jing)過潤色處理后進行顯示。不(bu)能完(wan)全真實反映實際效果。
四、機器材料的使用
由(you)于(yu)使(shi)用(yong)(yong)環(huan)境的(de)要求(qiu),液晶(jing)電視機器外殼材質(zhi)部分采用(yong)(yong)金屬質(zhi)地(di)。且內部板線(xian)都是產業化(hua)設計(ji),不(bu)輕易(yi)老化(hua);節能環(huan)保(bao)理念的(de)體現:低能耗設計(ji);環(huan)保(bao)材料使(shi)用(yong)(yong)。規整的(de)外觀(guan),便于(yu)拼接,組合安裝等產業需要。
反之,液(ye)晶(jing)電視(shi)整機外(wai)殼(ke)全部為(wei)非金屬材質(zhi)設計(ji)。內部板線是(shi)采用(yong)民用(yong)設計(ji),長(chang)時間(jian)開機輕(qing)易造成機件老(lao)化。另外(wai)民用(yong)電視(shi)外(wai)觀(guan)多是(shi)非規(gui)則外(wai)觀(guan),附帶數(shu)字標牌(pai)拼接屏系統、外(wai)觀(guan)圓弧(hu)系統等作為(wei)聽覺和(he)視(shi)覺的附屬設施(shi),施(shi)工起來整體美(mei)觀(guan)和(he)效果都會(hui)大(da)打(da)折扣。
五、端口
液(ye)晶(jing)拼接屏多采用產(chan)業端口(kou)例如RGBBNC的(de)色差帶(dai)自鎖機(ji)構的(de)接口(kou)和(he)專業的(de)DVI-D視(shi)頻接口(kou);
反(fan)之,液晶電視則沒有BNC自鎖色(se)差輸進接口和(he)DVI-D接口;
六、控制接口
液晶(jing)拼(pin)接屏可采用(yong)S232串口控制,開放的(de)控制口令多達200多條,適應各種(zhong)產(chan)業環境。方便多拼(pin)接屏使用(yong)時,不用(yong)通過遠控器(qi)就可以(yi)控制所有顯示設(she)備,并能夠(gou)輔助,定時開機(ji),延(yan)時開機(ji)、機(ji)器(qi)自檢等(deng)各種(zhong)產(chan)業要求。
反(fan)之,液晶電(dian)視(shi)也可采用S232串(chuan)口控(kong)制。但只能實現遠控(kong)器所具備的(de)控(kong)制指令(ling)。并不能實現產業控(kong)制。
七、無風扇架構
液晶拼接(jie)屏在設計上采用無機(ji)械(xie)排(pai)風扇(shan)來保(bao)持空氣流通和(he)散熱,從(cong)而避免由于(yu)機(ji)械(xie)排(pai)風扇(shan)導致的灰塵和(he)風扇(shan)噪音題目,當內部溫(wen)度由于(yu)不明原因而升(sheng)高時,液晶拼接(jie)屏自(zi)動控制背(bei)光(guang)系統(tong)將溫(wen)度保(bao)持在比較高工(gong)作溫(wen)度之下。
反之(zhi),液晶電視由(you)于應用的環境所致,對此無嚴格要求。
八.亮度
普通(tong)的液晶電視亮度只有200cd/m2,而拼接拼可(ke)以達(da)到(dao)450cd/m2或者(zhe)700cd/m2