一、整機穩定性(包括使用時間、抗干擾等)
液(ye)(ye)晶(jing)拼接(jie)(jie)(jie)(jie)屏(ping)(ping)在(zai)(zai)構成數(shu)字(zi)告示系統(tong)時(shi)(shi)(shi),通(tong)(tong)常需(xu)(xu)要(yao)天(tian)(tian)天(tian)(tian)24小時(shi)(shi)(shi),每年365天(tian)(tian)連續無中斷的(de)(de)(de)通(tong)(tong)電(dian)(dian)(dian)(dian)(dian)(dian)使(shi)用(yong)(yong)(yong)(yong)(而電(dian)(dian)(dian)(dian)(dian)(dian)視(shi)機(ji)通(tong)(tong)常天(tian)(tian)天(tian)(tian)僅(jin)工作幾小時(shi)(shi)(shi)),并且某(mou)些拼接(jie)(jie)(jie)(jie)屏(ping)(ping)的(de)(de)(de)應用(yong)(yong)(yong)(yong)環境可能較為(wei)惡(e)劣,這就要(yao)求液(ye)(ye)晶(jing)拼接(jie)(jie)(jie)(jie)屏(ping)(ping)的(de)(de)(de)可靠(kao)性(xing)和(he)穩定性(xing)更高(gao)。與(yu)電(dian)(dian)(dian)(dian)(dian)(dian)視(shi)機(ji)相比而言,在(zai)(zai)設計上,液(ye)(ye)晶(jing)拼接(jie)(jie)(jie)(jie)屏(ping)(ping)的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)、功耗、溫度(du)及(ji)抗電(dian)(dian)(dian)(dian)(dian)(dian)干擾(rao)、電(dian)(dian)(dian)(dian)(dian)(dian)沖擊的(de)(de)(de)能力和(he)裕度(du)以及(ji)均(jun)勻無故障使(shi)用(yong)(yong)(yong)(yong)時(shi)(shi)(shi)間均(jun)要(yao)遠大于電(dian)(dian)(dian)(dian)(dian)(dian)視(shi)機(ji),同(tong)時(shi)(shi)(shi)液(ye)(ye)晶(jing)拼接(jie)(jie)(jie)(jie)屏(ping)(ping)還必須使(shi)用(yong)(yong)(yong)(yong)全(quan)屏(ping)(ping)蔽(bi)金(jin)屬外殼(ke)確(que)保電(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)兼容和(he)干擾(rao)性(xing)能;在(zai)(zai)元(yuan)器件(jian)(jian)(jian)的(de)(de)(de)選型上,液(ye)(ye)晶(jing)拼接(jie)(jie)(jie)(jie)屏(ping)(ping)使(shi)用(yong)(yong)(yong)(yong)的(de)(de)(de)元(yuan)器件(jian)(jian)(jian)的(de)(de)(de)耐(nai)壓(ya)、電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)、溫度(du)、濕度(du)等各方面特性(xing)都(dou)要(yao)高(gao)于電(dian)(dian)(dian)(dian)(dian)(dian)視(shi)機(ji)使(shi)用(yong)(yong)(yong)(yong)的(de)(de)(de)元(yuan)器件(jian)(jian)(jian);而在(zai)(zai)安裝、調試尤其(qi)是(shi)元(yuan)器件(jian)(jian)(jian)和(he)整(zheng)機(ji)老化的(de)(de)(de)工藝要(yao)求上,液(ye)(ye)晶(jing)拼接(jie)(jie)(jie)(jie)屏(ping)(ping)的(de)(de)(de)要(yao)求也更高(gao),電(dian)(dian)(dian)(dian)(dian)(dian)視(shi)機(ji)制造時(shi)(shi)(shi)整(zheng)機(ji)老化通(tong)(tong)常是(shi)在(zai)(zai)流(liu)水線上常溫通(tong)(tong)電(dian)(dian)(dian)(dian)(dian)(dian)8小時(shi)(shi)(shi)左右,而液(ye)(ye)晶(jing)拼接(jie)(jie)(jie)(jie)屏(ping)(ping)的(de)(de)(de)整(zheng)機(ji)老化則需(xu)(xu)要(yao)在(zai)(zai)高(gao)溫、高(gao)濕密閉環境的(de)(de)(de)老化流(liu)水線上通(tong)(tong)電(dian)(dian)(dian)(dian)(dian)(dian)老化24小時(shi)(shi)(shi)以上,以確(que)保整(zheng)機(ji)的(de)(de)(de)穩定性(xing)。普通(tong)(tong)的(de)(de)(de)液(ye)(ye)晶(jing)電(dian)(dian)(dian)(dian)(dian)(dian)視(shi)使(shi)用(yong)(yong)(yong)(yong)的(de)(de)(de)LCD液(ye)(ye)晶(jing)屏(ping)(ping)其(qi)背(bei)光源(yuan)的(de)(de)(de)使(shi)用(yong)(yong)(yong)(yong)壽(shou)命為(wei)1萬(wan)(wan)至3萬(wan)(wan)小時(shi)(shi)(shi),而液(ye)(ye)晶(jing)拼接(jie)(jie)(jie)(jie)屏(ping)(ping)背(bei)光源(yuan)的(de)(de)(de)使(shi)用(yong)(yong)(yong)(yong)壽(shou)命均(jun)可達6-7萬(wan)(wan)小時(shi)(shi)(shi)以上。液(ye)(ye)晶(jing)拼接(jie)(jie)(jie)(jie)屏(ping)(ping)廠(chang)家
二、圖像清楚度
液晶(jing)(jing)拼接(jie)顯(xian)示(shi)(shi)用具有直觀反映圖像質量的(de)功能(neng),加(jia)之全1920*1080分(fen)辨率(lv)對于(yu)數字告示(shi)(shi)領域的(de)顯(xian)示(shi)(shi)設備(bei)的(de)選用,液晶(jing)(jing)拼接(jie)屏是(shi)優先(xian)選擇的(de)拼接(jie)屏,專業(ye)拼接(jie)屏分(fen)辨率(lv)是(shi)根據(ju)顯(xian)示(shi)(shi)輸出自動調整分(fen)辨率(lv)(不管橫(heng)豎都可以支持);其高可靠性和高清楚顯(xian)示(shi)(shi)能(neng)力將保證您可以將記錄(lu)編輯好的(de)高清楚影音,視頻信(xin)號完整的(de)顯(xian)示(shi)(shi)在觀看(kan)者眼前。
反之,液晶電(dian)(dian)(dian)視(shi)(shi)只支(zhi)持說明書中規定(ding)的(de)幾(ji)種(zhong)電(dian)(dian)(dian)視(shi)(shi)常用(yong)分(fen)(fen)辨率。由于民用(yong)電(dian)(dian)(dian)視(shi)(shi)信號的(de)分(fen)(fen)辨率只有幾(ji)種(zhong),電(dian)(dian)(dian)視(shi)(shi)LCD只要根據民用(yong)用(yong)戶使(shi)用(yong)的(de)常用(yong)幾(ji)個分(fen)(fen)辨率進行效果處(chu)理,特殊分(fen)(fen)辨率會導(dao)致花屏。
三、色彩還原度
假如說清(qing)楚度主要是(shi)由(you)(you)視頻通道的(de)(de)(de)幅頻特性決定(ding)的(de)(de)(de)話,還(huan)(huan)原度則(ze)主要由(you)(you)液晶(jing)拼接(jie)(jie)屏(ping)(ping)(ping)中有紅(R)、綠(G)、藍(B)三基色(se)(se)的(de)(de)(de)色(se)(se)度信(xin)(xin)號(hao)(hao)(hao)和(he)亮(liang)度信(xin)(xin)號(hao)(hao)(hao)的(de)(de)(de)相(xiang)位(wei)所決定(ding)。由(you)(you)于(yu)液晶(jing)拼接(jie)(jie)屏(ping)(ping)(ping)所觀察(cha)的(de)(de)(de)通常(chang)為(wei)靜態圖像,因而對拼接(jie)(jie)屏(ping)(ping)(ping)色(se)(se)彩(cai)還(huan)(huan)原度的(de)(de)(de)要求比(bi)電視機更高,故專業拼接(jie)(jie)屏(ping)(ping)(ping)的(de)(de)(de)視放通道在(zai)亮(liang)度、色(se)(se)度處理(li)和(he)R、G、B處理(li)上應具備的(de)(de)(de)補償電路(lu)和(he)延遲電路(lu),以(yi)確保亮(liang)/色(se)(se)信(xin)(xin)號(hao)(hao)(hao)和(he)R、G、B信(xin)(xin)號(hao)(hao)(hao)的(de)(de)(de)相(xiang)位(wei)同步。
反(fan)之,液晶(jing)電視由于使用環境要求所至,圖(tu)象(xiang)是經過(guo)潤色處理后進行顯示。不能完全真實(shi)反(fan)映實(shi)際效果。
四、機器材料的使用
由于使(shi)用(yong)環(huan)境(jing)的要求,液晶(jing)電視(shi)機器外殼材(cai)質部分采用(yong)金屬質地。且內(nei)部板線都是(shi)產(chan)業化設(she)計,不輕易老化;節(jie)能(neng)(neng)環(huan)保(bao)理念(nian)的體現(xian):低(di)能(neng)(neng)耗(hao)設(she)計;環(huan)保(bao)材(cai)料使(shi)用(yong)。規整(zheng)的外觀,便(bian)于拼(pin)接,組合安裝等產(chan)業需(xu)要。
反之,液晶電視(shi)整(zheng)(zheng)機外(wai)殼全部為非金屬材質設(she)計(ji)。內部板線(xian)是(shi)采用民用設(she)計(ji),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(duo)是(shi)非規則外(wai)觀,附(fu)帶數字標牌拼(pin)接屏系統、外(wai)觀圓弧系統等(deng)作為聽覺和視(shi)覺的(de)附(fu)屬設(she)施,施工起來整(zheng)(zheng)體(ti)美觀和效果都會大打折扣。
五、端口
液(ye)晶拼(pin)接(jie)屏多(duo)采用(yong)產業端口(kou)例(li)如RGBBNC的(de)色差(cha)帶(dai)自鎖機構(gou)的(de)接(jie)口(kou)和專業的(de)DVI-D視頻(pin)接(jie)口(kou);
反之,液晶電視則沒有(you)BNC自鎖(suo)色差輸(shu)進接口和DVI-D接口;
六、控制接口
液晶拼接屏可采用(yong)S232串(chuan)口(kou)控(kong)制,開放的控(kong)制口(kou)令多(duo)達200多(duo)條,適應各(ge)(ge)種(zhong)產業(ye)環境。方便多(duo)拼接屏使用(yong)時,不用(yong)通過遠(yuan)控(kong)器(qi)就(jiu)可以控(kong)制所有顯(xian)示設備,并(bing)能夠輔(fu)助,定時開機(ji),延時開機(ji)、機(ji)器(qi)自檢等(deng)各(ge)(ge)種(zhong)產業(ye)要求(qiu)。
反(fan)之,液晶電視也(ye)可采用S232串口控(kong)制(zhi)(zhi)。但(dan)只能實現遠控(kong)器所(suo)具備的(de)控(kong)制(zhi)(zhi)指(zhi)令(ling)。并(bing)不能實現產業(ye)控(kong)制(zhi)(zhi)。
七、無風扇架構
液(ye)晶拼接屏在設計上采(cai)用無(wu)機(ji)械排風(feng)扇來保持(chi)(chi)空氣流通和散(san)熱(re),從(cong)而避免(mian)由于(yu)機(ji)械排風(feng)扇導致的(de)灰塵和風(feng)扇噪音題目,當(dang)內部溫(wen)度(du)由于(yu)不明原因而升高(gao)時,液(ye)晶拼接屏自動控制背(bei)光系統將(jiang)溫(wen)度(du)保持(chi)(chi)在比(bi)較高(gao)工作溫(wen)度(du)之(zhi)下。
反之,液晶電(dian)視(shi)由于應用的環境所(suo)致,對此(ci)無嚴格要求。
八.亮度
普通的液(ye)晶(jing)電(dian)視亮(liang)度只(zhi)有200cd/m2,而(er)拼(pin)接拼(pin)可以達到450cd/m2或(huo)者700cd/m2