led顯示屏外文翻譯

1、<p><b>　　附錄3 中英文翻譯</b></p><p>　　The led manifestation hold</p><p>　　The LED manifestation hold(LED panel):The LED is a light emitting diode, give out light the English abbreviat

2、ion of diode, brief name LED. It is 1 kind to pass The control semi-conductor give out light diode of manifestation way, it probably of appearance be from a lot of usually is red of the small light constitute, depend

3、light of bright put out to manifestation character list. Using to the manifestation writing, sketch, picture, animation, condition of the market, video frequency and recor</p><p>　　The LED manifestation hold

4、 to is divided into a diagram text's manifestation to hold with video frequency manifestation hold, is all constitute by LED matrix piece. The diagram text's manifestation hold can with calculator synchronous man

5、ifestation Chinese characters, English The text text origin and sketch，The video frequency manifestation hold adoption microcomputer to carry on control, diagram text, picture combine luxuriant, with solid hour, sync

6、hronous, clear information dissemination t</p><p>　　The LED's manifestation hold can manifestation variety of numeral, writing, sketch picture，Can not only used for an indoor environment but also used fo

7、r outdoors environment, have to cast shadow an instrument, television wall, LCD manifestation to hold the advantage that can't compare to. </p><p>　　The reason that, the LED be extensively valued but get

8、 quick development, is with it have of advantage inseparable. These advantages summarize BE，Bright degree Gao, work the electric voltage be low, achievement consume small and small scaled turn, life span long, bear pound

9、 at and function stability. The LED development foreground is extremely vast, currently just toward the higher and bright degree, higher bear weather, higherly give out light density and higherly give out light even, the

10、 credi</p><p>　　the LED manifestation hold a development process 30 year review1970's at the earliest stage of GaP, GaAsP together quality knot red, Huang, green low give out light the LED of efficiency

11、a beginning already application at the indicator, numeral and writing manifestation .From now on the LED start get into a variety application realm and include astronautics, airplane, car, industry application, correspon

12、dence, consume type product etc., all over each section of national economy and thousand 1000</p><p>　　Two, extremely high and bright degree LED function: </p><p>　　The extremely high and bright

13、 degree red A1 GaAsLED and GaAsP-GaP LED compare, have to higherly give out light an efficiency, the flow of transparent Chen low(TS) A1 GaAs LED(640 nm) clear efficiency already close 10 lm/w, ratio the red GaAsP-GaP LE

14、D big 1000%.Color and GaAsP-GaP that the extremely high and bright degree InGaAlP LED provide LED homology include，academy blue(560 nm), shallow academy blue(570 nm), yellow(585 nm), shallow Huang(590 nm), orange(605 nm)

15、 and pink(625 nm deep red.(640 </p><p>　　Three, extremely high and bright degree LED application: </p><p>　　1.information indicator</p><p>　　Car signal designation，car indicator'

16、;s exterior in car's being main be a turn signal, tail lamp and brake light，Main is various appearance in the inner part of car of illuminate and manifestation. The extremely high and bright degree LED used for car i

17、ndicator and the incandescent lamp of tradition to compare to have many advantage, in the car industry have extensive of market .The LED can experience a stronger machine to pound at and vibrate. Average work life span M

18、TBF ratio incandescent lamp </p><p>　　2.great screen manifestation</p><p>　　Great screen manifestation is extremely high and bright degree LED application of another one huge market, include，col

19、or and whole color of the monochrome, double of the sketch, writing, numeral manifestation. Tradition of the big screen have a source manifestation general adoption incandescent lamp, fiber optic, cathode ray tube etc.，H

20、ave no source manifestation general adoption turn over the method of card .Form 3 listed a few kinds manifestation of function comparison. The LED manifestation o</p><p>　　3.the LCD manifestation(LCD) carry

21、on the back to illuminate</p><p>　　Have 10% adoption to have source light as to carry on the back illuminate at least in the LCD manifestation, the light source can make LCD manifestation hold of dark of env

22、ironment bottom easy read, whole color LCD manifestation also demand light source. The LCD carry on the back to illuminate the light source need main have，incandescent lamp bubble, field with the result that give out lig

23、ht, cold cathode fluorescence, LED etc., they be listed on form 4 carry on comparison, among them, the LED h</p><p>　　The LED used for LCD to carry on the back to illuminate main have three kinds of way.(1)M

24、ost simple is LED light direct install spread to shoot a film in the LCD of behind, can use many pack of LED light, they should have very breadth of light beam Cape with make stalk to light the even be better. Can also a

25、doption don't pack of tube Xin, general use GaP LED, however use AlGaInP, TS-AlGaAs LED can then under the small electric current work, let up achievement consume.(2)Another a way are an edge</p><p>　　4.

26、the solid shine on a light</p><p>　　Whole color extremely high and bright degree LED of practical turn with commercialize, make to illuminate a technique to face a new of revolution, solid floodlight make in

27、to by many extremely high and bright degree red, blue and green three color LEDses not only can send out a wave-length continuous various adjustable color light, and also can send out a bright degree can reach several 10

28、-100 candlelights of white become lighting light source .Recen Japan day second company make use of its InGaN</p><p><b>　　LED顯示屏</b></p><p>　　LED顯示屏：LED就是light emitting diode ，發(fā)光二極管的

29、英文縮寫，簡稱LED。它是一種通過控制半導(dǎo)體發(fā)光二極管的顯示方式，其大概的樣子就是由很多個通常是紅色的小燈組成，靠燈的亮滅來顯示字符。用來顯示文字、圖形、圖像、動畫、行情、視頻、錄像信號等各種信息的顯示屏幕。 LED顯示屏分為圖文顯示屏和視頻顯示屏，均由LED矩陣塊組成。圖文顯示屏可與計(jì)算機(jī)同步顯示漢字、英文文本和圖形；視頻顯示屏采用微型計(jì)算機(jī)進(jìn)行控制，圖文、圖像并茂，以實(shí)時、同步、清晰的信息傳播方式播放各種信息，還可顯示二維、三維動畫

30、、錄像、電視、VCD節(jié)目以及現(xiàn)場實(shí)況。LED顯示屏顯示畫面色彩鮮艷，立體感強(qiáng)，靜如油畫，動如電影，廣泛應(yīng)用于金融、稅務(wù)、工商、郵電、體育、廣告、廠礦企業(yè)、交通運(yùn)輸、教育系統(tǒng)、車站、碼頭、機(jī)場、商場、醫(yī)院、賓館、銀行、證券市場、建筑市場、拍賣行、工業(yè)企業(yè)管理和其它公共場所。 </p><p>　　LED顯示屏可以顯示變化的數(shù)字、文字、圖形圖像；不僅可以用于室內(nèi)環(huán)境還可以用于室外環(huán)境，具有投影儀、電視墻、液晶顯示屏無

31、法比擬的優(yōu)點(diǎn)。 LED之所以受到廣泛重視而得到迅速發(fā)展，是與它本身所具有的優(yōu)點(diǎn)分不開的。這些優(yōu)點(diǎn)概括起來是：亮度高、工作電壓低、功耗小、小型化、壽命長、耐沖擊和性能穩(wěn)定。LED的發(fā)展前景極為廣闊，目前正朝著更高亮度、更高耐氣候性、更高的發(fā)光密度、更高的發(fā)光均勻性，可靠性、全色化方向發(fā)展。</p><p>　　LED顯示屏發(fā)展歷程</p><p>　　1970年代最早的GaP、GaAsP同質(zhì)

32、結(jié)紅、黃、綠色低發(fā)光效率的LED已開始應(yīng)用于指示燈、數(shù)字和文字顯示。從此LED開始進(jìn)入多種應(yīng)用領(lǐng)域，包括宇航、飛機(jī)、汽車、工業(yè)應(yīng)用、通信、消費(fèi)類產(chǎn)品等，遍及國民經(jīng)濟(jì)各部門和千家萬戶。到1996年LED在全世界的銷售額已達(dá)到幾十億美元。盡管多年以來LED一直受到顏色和發(fā)光效率的限制，但由于GaP和GaAsP LED具有長壽命、高可靠性,工作電流小、可與TTL、CMOS數(shù)字電路兼容等許多優(yōu)點(diǎn)因而卻一直受到使用者的青瞇。 最近十年，高亮度化、

33、全色化一直是LED材料和器件工藝技術(shù)研究的前沿課題。超高亮度(UHB)是指發(fā)光強(qiáng)度達(dá)到或超過100mcd的LED，又稱坎德拉(cd)級LED。高亮度A1GaInP和InGaN LED的研制進(jìn)展十分迅速，現(xiàn)已達(dá)到常規(guī)材料GaA1As、GaAsP、GaP不可能達(dá)到的性能水平。1991年日本東芝公司和美國HP公司研制成InGaA1P 620nm橙色超高亮度LED，1992年InGaA1p590nm黃色超高亮度LED實(shí)用化。同年，東芝公司研制I

34、nGaA1P 573nm黃綠色超高亮度LED，法向光強(qiáng)達(dá)2cd。1994年日本日</p><p>　　450nm藍(lán)(綠)色超高亮度LED。至此，彩色顯示所需的三基色紅、綠、藍(lán)以及橙、黃多種顏色的LED都達(dá)到了坎德拉級的發(fā)光強(qiáng)度，實(shí)現(xiàn)了超高亮度化、全色化，使發(fā)光管的戶外全色顯示成為現(xiàn)實(shí)。 我國發(fā)展LED起步于七十年代，產(chǎn)業(yè)出現(xiàn)于八十年代。全國約有100多家企業(yè)，95%的廠家都從事后道封裝生產(chǎn)，所需管芯幾乎全部從國

35、外進(jìn)口。通過幾個“五年計(jì)劃”的技術(shù)改造、技術(shù)攻關(guān)、引進(jìn)國外先進(jìn)設(shè)備和部分關(guān)鍵技術(shù)， 使我國LED的生產(chǎn)技術(shù)已向前跨進(jìn)了一步。 </p><p>　　二、超高亮度LED的性能: </p><p>　　超高亮度紅A1GaAsLED與GaAsP-GaP LED相比，具有更高的發(fā)光效率，透明襯低(TS)A1GaAs LED(640nm)的流明效率已接近10lm/w，比紅色GaAsP-GaP LED

36、大10倍。超高亮度InGaAlP LED提供的顏色與GaAsP-GaP LED相同包括:綠黃色(560nm)、淺綠黃色(570nm)、黃色(585nm)、淺黃(590nm)、橙色(605nm)、淺紅(625nm深紅 (640nm)。透明襯底A1GaInP LED發(fā)光效率與其它LED結(jié)構(gòu)及白熾光源的比較，InGaAlP LED吸收襯底(AS)的流明效率為101m/w，透明襯底(TS)為201m/w，在590－626nm的波長范圍內(nèi)比Ga

37、AsP-GaP LED的流明效率要高10－20倍；在560－570的波長范圍內(nèi)則比GaAsP-GaP LED高出2－4倍。超高亮度InGaN LED提供了蘭色光和綠色光，其波長范圍蘭色為450－480nm，蘭綠色為500nm，綠色為520nm；其流明效率為3－151m/w。超高亮度LED目前的流明效率已超過了帶濾光片的白熾燈，可以取代功率1w以內(nèi)的白熾燈，而且用L</p><p>　　三、超高亮度LED的應(yīng)用:

38、</p><p><b>　　1．信息指示燈 </b></p><p>　　汽車信號指示:汽車指示燈在車的外部主要是方向燈、尾燈和剎車燈；在車的內(nèi)部主要是各種儀表的照明和顯示。超高亮度LED用于汽車指示燈與傳統(tǒng)的白熾燈相比具有許多優(yōu)點(diǎn)，在汽車工業(yè)中有著廣泛的市場。LED能夠經(jīng)受較強(qiáng)的機(jī)械沖擊和震動。平均工作壽命MTBF比白熾燈泡高出幾個量級，遠(yuǎn)遠(yuǎn)高出汽車本身的工作壽命

39、，因此流下工作，典型的驅(qū)動電流只有白熾燈至少要有12個紅色、黃色、藍(lán)綠色信號燈。</p><p><b>　　2．大屏幕顯示 </b></p><p>　　大屏幕顯示是超高亮度LED應(yīng)用的另一巨大市場，包括:圖形、文字、數(shù)字的單色、雙色和全色顯示。傳統(tǒng)的大屏幕有源顯示一般采用白熾燈、光纖、陰極射線管等；無源顯示一般采用翻牌的方法。表3列出了幾種顯示的性能比較。LED顯

40、示曾一直受到LED本身性能和顏色的限制。如今，超高亮度AlGaInP、TS-AlGaAs、InGaN LED已能夠提供明亮的紅、黃、綠、藍(lán)各種顏色，可完全滿足實(shí)現(xiàn)全色大屏幕顯示的要求。LED顯示屏可按像素尺寸裝配成各種結(jié)構(gòu)，小像素直徑一般小于5mm，單色顯示的每個像素用一個T-1 (3/4)的LED燈，雙色顯示的每個像素為雙色的T-1(3/4)的LED燈，全色顯示則需要3個T-1紅、綠、藍(lán)色燈，或者裝配一個多芯片的T-1(3/4)的LE

41、D燈作為一個像素。大像素則是通過把許多T-1(3/4)紅、綠、藍(lán)色LED燈組合在一起構(gòu)成的。用InGaN(480nm)藍(lán)、InGaN(515nm)綠和ALGaAS(637nm)紅LED燈作為LED顯示的三基色，可以提供逼真的全色性能，而且具有較大的顏色范圍包括:藍(lán)綠、綠紅等，與國際電視系統(tǒng)委員會(NTSC)規(guī)定的電視顏色范圍基本相符。 </p><p>　　3．液晶顯示(LCD)的背照明 </p>

42、<p>　　在液晶顯示中至少有10%采用有源光作為背照明，光源可使LCD顯示屏的黑暗的環(huán)境下易讀，全色LCD顯示也需要光源。LCD背照明所需的光源主要有:白熾燈泡、場致發(fā)光、冷陰極熒光、LED等，它們被列于表4進(jìn)行比較，其中LED在LCD背照明中最有競爭力，新型的超高亮度AlGaInP、AlGaAs、InGaN LED可以提供高效率的發(fā)光和寬范圍的顏色。 </p><p>　　LED用于LCD背照明主要

43、有三種方式。(1)最簡單是把LED燈直接安裝在LCD散射膜的后面，可用許多封裝的LED燈，它們應(yīng)當(dāng)具有非常寬的光束角，以使軸向光均勻性較好。也可以采用未封裝的管芯，一般用GaP LED，然而用AlGaInP、TS-AlGaAs LED則可在小電流下工作，減小功耗。(2)另一方式是邊緣光LCD背照明，用一個透明或半透明的矩形塑料塊作為導(dǎo)光體，將其直接安裝在LCD散射膜的后面，塑料塊的后表面涂上白色反光材料，LED光從塑料塊的一個側(cè)邊射入，

44、其余側(cè)邊作以白色反光材料。(3)將LED發(fā)出的光導(dǎo)入光纖束之中，光纖束的散射膜后面構(gòu)成一個平坦的薄片，可以用不同的方法將光從薄片中取出作為LCD的背照明。采用LED作為背照明的液晶顯示器可用于移動電話、筆記本電腦，隨著小型液晶顯示器在節(jié)電型通信產(chǎn)品中的廣泛使用，將會對超高亮度LED有更大的需求。 </p><p><b>　　4．固體照燈 </b></p><p>　

45、　全色超高亮度LED的實(shí)用化和商品化，使照明技術(shù)面臨一場新的革命，由多個超高亮度紅、藍(lán)、綠三色LED制成的固體照明燈不僅可以發(fā)出波長連續(xù)可調(diào)的各種色光，而且還可以發(fā)出亮度可達(dá)幾十到一百燭光的白色成為照明光源。最近，日本日亞公司利用其InGaN藍(lán)光LED和熒光技術(shù)，又推出了白光固體發(fā)光器件產(chǎn)品，其色溫為6500K，效率達(dá)每瓦7.5流明。對于相同發(fā)光亮度的白熾燈和LED固體照明燈說，后者的功耗只占前者的10%－20%，白熾燈的壽命一般不超過