一、整機穩定性(包括使用時間、抗干擾等)
液(ye)(ye)晶(jing)(jing)(jing)拼接(jie)(jie)(jie)屏(ping)(ping)在(zai)(zai)構(gou)成數字(zi)告示系統時(shi)(shi)(shi)(shi)(shi),通(tong)常需(xu)(xu)要(yao)天(tian)天(tian)24小時(shi)(shi)(shi)(shi)(shi),每年(nian)365天(tian)連(lian)續(xu)無中斷的(de)(de)通(tong)電(dian)(dian)(dian)(dian)(dian)使(shi)(shi)用(yong)(yong)(yong)(而(er)(er)電(dian)(dian)(dian)(dian)(dian)視(shi)(shi)機(ji)(ji)通(tong)常天(tian)天(tian)僅工作幾小時(shi)(shi)(shi)(shi)(shi)),并且某些拼接(jie)(jie)(jie)屏(ping)(ping)的(de)(de)應用(yong)(yong)(yong)環(huan)(huan)境可(ke)能(neng)較為惡劣,這就要(yao)求液(ye)(ye)晶(jing)(jing)(jing)拼接(jie)(jie)(jie)屏(ping)(ping)的(de)(de)可(ke)靠性(xing)(xing)和穩定性(xing)(xing)更高(gao)。與電(dian)(dian)(dian)(dian)(dian)視(shi)(shi)機(ji)(ji)相比而(er)(er)言,在(zai)(zai)設計上(shang),液(ye)(ye)晶(jing)(jing)(jing)拼接(jie)(jie)(jie)屏(ping)(ping)的(de)(de)電(dian)(dian)(dian)(dian)(dian)流、功耗、溫(wen)度(du)(du)及(ji)抗電(dian)(dian)(dian)(dian)(dian)干擾、電(dian)(dian)(dian)(dian)(dian)沖(chong)擊的(de)(de)能(neng)力和裕(yu)度(du)(du)以(yi)及(ji)均(jun)勻(yun)無故障使(shi)(shi)用(yong)(yong)(yong)時(shi)(shi)(shi)(shi)(shi)間均(jun)要(yao)遠(yuan)大于電(dian)(dian)(dian)(dian)(dian)視(shi)(shi)機(ji)(ji),同時(shi)(shi)(shi)(shi)(shi)液(ye)(ye)晶(jing)(jing)(jing)拼接(jie)(jie)(jie)屏(ping)(ping)還必須使(shi)(shi)用(yong)(yong)(yong)全屏(ping)(ping)蔽金屬外殼確保電(dian)(dian)(dian)(dian)(dian)磁兼(jian)容和干擾性(xing)(xing)能(neng);在(zai)(zai)元(yuan)(yuan)器(qi)件的(de)(de)選型(xing)上(shang),液(ye)(ye)晶(jing)(jing)(jing)拼接(jie)(jie)(jie)屏(ping)(ping)使(shi)(shi)用(yong)(yong)(yong)的(de)(de)元(yuan)(yuan)器(qi)件的(de)(de)耐壓、電(dian)(dian)(dian)(dian)(dian)流、溫(wen)度(du)(du)、濕度(du)(du)等各方面特性(xing)(xing)都(dou)要(yao)高(gao)于電(dian)(dian)(dian)(dian)(dian)視(shi)(shi)機(ji)(ji)使(shi)(shi)用(yong)(yong)(yong)的(de)(de)元(yuan)(yuan)器(qi)件;而(er)(er)在(zai)(zai)安裝(zhuang)、調試尤其是(shi)元(yuan)(yuan)器(qi)件和整(zheng)機(ji)(ji)老化(hua)(hua)(hua)的(de)(de)工藝(yi)要(yao)求上(shang),液(ye)(ye)晶(jing)(jing)(jing)拼接(jie)(jie)(jie)屏(ping)(ping)的(de)(de)要(yao)求也更高(gao),電(dian)(dian)(dian)(dian)(dian)視(shi)(shi)機(ji)(ji)制(zhi)造時(shi)(shi)(shi)(shi)(shi)整(zheng)機(ji)(ji)老化(hua)(hua)(hua)通(tong)常是(shi)在(zai)(zai)流水(shui)(shui)線上(shang)常溫(wen)通(tong)電(dian)(dian)(dian)(dian)(dian)8小時(shi)(shi)(shi)(shi)(shi)左右(you),而(er)(er)液(ye)(ye)晶(jing)(jing)(jing)拼接(jie)(jie)(jie)屏(ping)(ping)的(de)(de)整(zheng)機(ji)(ji)老化(hua)(hua)(hua)則(ze)需(xu)(xu)要(yao)在(zai)(zai)高(gao)溫(wen)、高(gao)濕密閉環(huan)(huan)境的(de)(de)老化(hua)(hua)(hua)流水(shui)(shui)線上(shang)通(tong)電(dian)(dian)(dian)(dian)(dian)老化(hua)(hua)(hua)24小時(shi)(shi)(shi)(shi)(shi)以(yi)上(shang),以(yi)確保整(zheng)機(ji)(ji)的(de)(de)穩定性(xing)(xing)。普通(tong)的(de)(de)液(ye)(ye)晶(jing)(jing)(jing)電(dian)(dian)(dian)(dian)(dian)視(shi)(shi)使(shi)(shi)用(yong)(yong)(yong)的(de)(de)LCD液(ye)(ye)晶(jing)(jing)(jing)屏(ping)(ping)其背(bei)光(guang)源的(de)(de)使(shi)(shi)用(yong)(yong)(yong)壽命為1萬至3萬小時(shi)(shi)(shi)(shi)(shi),而(er)(er)液(ye)(ye)晶(jing)(jing)(jing)拼接(jie)(jie)(jie)屏(ping)(ping)背(bei)光(guang)源的(de)(de)使(shi)(shi)用(yong)(yong)(yong)壽命均(jun)可(ke)達6-7萬小時(shi)(shi)(shi)(shi)(shi)以(yi)上(shang)。液(ye)(ye)晶(jing)(jing)(jing)拼接(jie)(jie)(jie)屏(ping)(ping)廠家
二、圖像清楚度
液晶(jing)拼(pin)接顯(xian)示(shi)用(yong)具有直(zhi)觀反映(ying)圖像質(zhi)量的(de)(de)(de)(de)功能(neng),加之全(quan)1920*1080分辨(bian)(bian)率(lv)對于數字告(gao)示(shi)領域(yu)的(de)(de)(de)(de)顯(xian)示(shi)設備的(de)(de)(de)(de)選用(yong),液晶(jing)拼(pin)接屏是優(you)先選擇的(de)(de)(de)(de)拼(pin)接屏,專業拼(pin)接屏分辨(bian)(bian)率(lv)是根據顯(xian)示(shi)輸出自(zi)動調整分辨(bian)(bian)率(lv)(不管橫豎(shu)都可以(yi)支持(chi));其高可靠性和高清楚(chu)顯(xian)示(shi)能(neng)力將(jiang)保證您可以(yi)將(jiang)記(ji)錄編輯好的(de)(de)(de)(de)高清楚(chu)影(ying)音,視頻信號完整的(de)(de)(de)(de)顯(xian)示(shi)在觀看(kan)者眼(yan)前。
反之,液晶(jing)電視(shi)(shi)只(zhi)(zhi)支持(chi)說明書中規定的(de)(de)幾種(zhong)電視(shi)(shi)常用(yong)(yong)(yong)分(fen)辨(bian)率(lv)(lv)。由于(yu)民用(yong)(yong)(yong)電視(shi)(shi)信(xin)號的(de)(de)分(fen)辨(bian)率(lv)(lv)只(zhi)(zhi)有幾種(zhong),電視(shi)(shi)LCD只(zhi)(zhi)要根據民用(yong)(yong)(yong)用(yong)(yong)(yong)戶(hu)使用(yong)(yong)(yong)的(de)(de)常用(yong)(yong)(yong)幾個分(fen)辨(bian)率(lv)(lv)進行效果處理,特殊分(fen)辨(bian)率(lv)(lv)會導致花屏。
三、色彩還原度
假如說清(qing)楚度(du)主要(yao)是(shi)由(you)視(shi)頻(pin)通道的(de)幅頻(pin)特性決定(ding)的(de)話,還原(yuan)度(du)則主要(yao)由(you)液晶拼(pin)接屏(ping)(ping)中有紅(R)、綠(G)、藍(B)三基色的(de)色度(du)信號(hao)和(he)亮度(du)信號(hao)的(de)相位所決定(ding)。由(you)于液晶拼(pin)接屏(ping)(ping)所觀察的(de)通常為靜態圖像(xiang),因而對拼(pin)接屏(ping)(ping)色彩還原(yuan)度(du)的(de)要(yao)求(qiu)比電(dian)視(shi)機更高,故(gu)專業拼(pin)接屏(ping)(ping)的(de)視(shi)放(fang)通道在亮度(du)、色度(du)處(chu)理和(he)R、G、B處(chu)理上應具備的(de)補償(chang)電(dian)路和(he)延遲電(dian)路,以確(que)保亮/色信號(hao)和(he)R、G、B信號(hao)的(de)相位同步。
反之(zhi),液晶電視由于使(shi)用(yong)環(huan)境要求(qiu)所(suo)至,圖象是(shi)經過潤色(se)處理后(hou)進(jin)行(xing)顯示。不(bu)能完全真實反映實際效(xiao)果。
四、機器材料的使用
由于(yu)使用環境的要(yao)求,液晶電視機器外殼材(cai)質(zhi)部分采用金屬質(zhi)地。且內部板(ban)線都是產(chan)業(ye)化設計,不輕易老(lao)化;節能(neng)環保理(li)念的體現:低(di)能(neng)耗設計;環保材(cai)料使用。規整的外觀(guan),便(bian)于(yu)拼接,組合安裝等產(chan)業(ye)需(xu)要(yao)。
反之(zhi),液晶電視整(zheng)機外(wai)殼全部為(wei)非(fei)(fei)金屬(shu)材(cai)質設(she)計(ji)。內部板線是(shi)采用(yong)民用(yong)設(she)計(ji),長時間開機輕(qing)易造成機件老化。另外(wai)民用(yong)電視外(wai)觀(guan)多(duo)是(shi)非(fei)(fei)規則外(wai)觀(guan),附帶數字標(biao)牌拼接屏系統(tong)、外(wai)觀(guan)圓弧系統(tong)等作(zuo)為(wei)聽覺和視覺的(de)附屬(shu)設(she)施(shi),施(shi)工起來整(zheng)體美(mei)觀(guan)和效果都會(hui)大(da)打折扣。
五、端口
液晶拼接屏多采(cai)用產業端(duan)口(kou)例如RGBBNC的(de)色差帶(dai)自鎖(suo)機構的(de)接口(kou)和專業的(de)DVI-D視頻接口(kou);
反之,液晶電視則沒有BNC自鎖(suo)色差輸進接口(kou)和DVI-D接口(kou);
六、控制接口
液晶拼接(jie)屏(ping)可采用S232串口控制(zhi)(zhi),開放的控制(zhi)(zhi)口令多達200多條,適應各(ge)種(zhong)產業環境。方便多拼接(jie)屏(ping)使用時(shi),不用通(tong)過(guo)遠控器就(jiu)可以控制(zhi)(zhi)所有(you)顯示設備,并(bing)能夠輔(fu)助,定時(shi)開機,延時(shi)開機、機器自檢等各(ge)種(zhong)產業要求。
反(fan)之,液晶電視也(ye)可采用S232串口控制(zhi)。但只能(neng)實現遠控器所具備的控制(zhi)指令。并不能(neng)實現產業控制(zhi)。
七、無風扇架構
液(ye)(ye)晶(jing)(jing)拼接屏(ping)在設計(ji)上采用(yong)無機械排風扇(shan)來保持空氣流通和(he)散熱,從而(er)避免由(you)于機械排風扇(shan)導(dao)致的灰塵和(he)風扇(shan)噪音題目(mu),當(dang)內部溫度(du)(du)由(you)于不明原因而(er)升(sheng)高(gao)(gao)時,液(ye)(ye)晶(jing)(jing)拼接屏(ping)自動控制(zhi)背光系統將溫度(du)(du)保持在比(bi)較高(gao)(gao)工作溫度(du)(du)之下。
反之,液晶電(dian)視由于應用的環境所致,對(dui)此無(wu)嚴格要求。
八.亮度
普通的(de)液晶電(dian)視亮度只有200cd/m2,而拼接拼可以(yi)達到450cd/m2或者700cd/m2