外文翻譯--液晶顯示器玻璃基板或液晶顯示模塊

1、<p><b>　　英文原文</b></p><p>　　Types of LCD Products - Glass or Modules</p><p>　　The most fundamental decision to make is whether the display will have the drive circuitry attached

2、(module), or not (glass only). There are advantages and disadvantages to each approach.</p><p>　　When purchasing a Custom LCD Module, the basic electronic design work will be done by the manufacturer. This o

3、bviously saves design time and reduces the manpower needed to bring a product to market. You can benefit from the experience we have gained during our previous designs to shorten the design cycle and deliver an optimized

4、 product. The major decisions you need to make are the interface type, with standard serial or parallel interfaces being the most common, and the type of integrated backl</p><p>　　A glass only design puts th

5、e design burden on the end user. You will need to learn a great deal about LCD's in order to complete your design. Luckily, our website provides Application Information and Web Links to assist you in the search for t

6、he information you may need.</p><p>　　The main reasons to buy just the LCD glass are to reduce costs, and provide design flexibility. The total cost of the components necessary to build the drive circuitry i

7、s typically less than the cost of a pre-built module, and as long as you have space on your existing PC board, you won't have to pay for an extra PC board on which to mount the display, and have access to cost effect

8、ive assembly and test. By doing a little homework, your design will work just as well as a module, and will allow t</p><p>　　Types of LCD Images</p><p>　　The LCD can contain character icons, seg

9、ments, graphic dot arrays, or any combination.</p><p>　　Icons: By making a custom LCD, you can place images on the glass that specifically complement your produce, these are called "Icons". These s

10、ilhouettes can take the shape of any image you may need and count as one pixel or dot on the LCD. </p><p>　　Segments: Segments on an LCD display make up a larger character, such as a segment in a seven segm

11、ent numeric character (displays 0-9), or a segment in a 14 segment alpha-numeric character (displays 0-9 & A-Z).</p><p>　　Dot Arrays: These dot arrays can be made in almost any size and dot count. Exampl

12、es would be character displays that use a series of 5x7 dot arrays to create a string of alphanumeric characters, or the larger 320 x 240 graphic arrays that make images along with variable size alpha-numeric characters.

13、</p><p>　　Types of Liquid and Technology</p><p>　　The type of technology used is determined by the specific performance requirements you set for the display that you are designing. Since several

14、 variations will do a fine job, the ultimate consideration is cost. So here is a quick breakdown of the technologies we offer.</p><p>　　TN: Low production and NRE costs, poor viewing angle, average contrast.

15、 Coloration: Black on Gray. Static preferred, but operates well up to a 32:1 Multiplex rate. LCD Glass favorite.</p><p>　　STN: Medium production and NRE costs, average viewing angle, average contrast. Colora

16、tion Black on Green, or Dark Blue on Gray. Works well at high Multiplex rates. LCD Module favorite,high end LCD glass choice.</p><p>　　FSTN: Medium high production and NRE costs. Good viewing angle, excellen

17、t contrast. Coloration Black on White. Works well at high Multiplex rates. Higher end LCD Module favorite.</p><p>　　Negative Image: This is an effect that reverses the image on the display and is only offere

18、d with transmissive displays. The visual effect is to allow the backlight to define the pixels turned "on" (transparent), while the "off" pixels remain opaque. This configuration works best in moderat

19、e to low light conditions.</p><p>　　Viewing Mode and Polarizers</p><p>　　The viewing mode is controlled by the rear polarizer, and how much it does or does not reflect light. We offer three mode

20、s.</p><p>　　Reflective: This type of polarizer gives the display the brightest appearance in high to moderate ambient light conditions, with the highest contrast ratio possible. Unfortunately, it will be dif

21、ficult to read at night or under changing lightning conditions (think Game Boy).</p><p>　　Transflective: (Favorite solution) If your display must be readable under a wide range of lighting conditions, you wi

22、ll generally want a transflective display so that it will look very good in the bright sunlight, but will also be back-lightable at twilight and at night. The tradeoff with a transflective display is that it will not loo

23、k as good as a reflective display during the day, and it will not look as good as a transmissive display at night. It will however enable you to have an acceptable</p><p>　　Transmissive: This display needs t

24、o have a working backlight, unless it gets its light from being a "window" type of device where the area behind the LCD has a light source room ambient light. Where it is in a contained display, the backlight m

25、ay have a problem overpowering high ambient light. This type of display looks great for an indoor application, but is not very good in applications where power consumption is a problem and it needs a strong backlight. Re

26、member, this choice of polarizer wil</p><p>　　The polarizers are also affected by temperature, and a quality grade must be specified when choosing a polarizer. After you have determined your environmental te

27、mperature requirements, you then need to choose the polarizer grade. Here are your typical choices.</p><p>　　Commercial Grade Polarizers: Displays which will be indoors, or mostly indoors, can use commercial

28、 grade polarizers. These polarizers will hold up very well when used in most instrumentation, office and home products, and other applications where the products will be protected from high temperature, sunlight, and hum

29、idity.</p><p>　　Industrial Grade Polarizers: For harsh environments, a polarizer specifically designed for outdoor, extremely humid conditions should be used. We call these polarizers industrial grade.</p

30、><p>　　Viewing Direction</p><p>　　The viewing direction of a LCD part is defined as the angles above, below, left, and right of the point-of-view that is perpendicular to the center of the display.

31、</p><p>　　6:00 viewing direction has optimum contrast from below the perpendicular viewing plane (most popular).</p><p>　　12:00 viewing direction has optimum contrast from above the perpendicula

32、r viewing plane.</p><p>　　9:00 viewing direction has optimum contrast to the left side of the perpendicular viewing plane (uncommon).</p><p>　　3:00 viewing direction has optimum contrast to righ

33、t side of the perpendicular viewing plane (uncommon).</p><p>　　Please keep in mind that viewing direction is less important for a direct drive display. As a general rule, the higher the multiplex rate, the m

34、ore important the viewing direction becomes. Also, if your display is going to be viewed by a person wearing polarized sunglasses, you must specify this in the comment section to ensure that the display will not look bla

35、nk to an observer wearing polarized sunglasses. However keep in mind that for quoting purposes, the price of the display will not change</p><p>　　Environmental Considerations - Temperature Range</p>&

36、lt;p>　　The operating and storage temperature range of an LCD are important considerations, since operating outside of those ranges will result in a display that is not readable (outside operational range) or permanent

37、ly damage the LCD (outside storage range). The combination of the LCD fluid, polarizers, operational voltage, and multiplex rate determine the temperature range of the part. So instead of going through the different comb

38、inations of these parameters, here are some general guidelines you can</p><p>　　LCD TN Glass / Static or Low Multiplex Rates: Standard Temp Range: -10¡ãC to +60¡ãC, Wide Temp Range: -40&#

39、161;ãC to +80¡ãC, Specialized Temp range: down to -55¡ãC, or up to +110¡ãC</p><p>　　LCD TN Modules / Multiplexed: Standard Temp Range: -0¡ãC to +50¡ãC,

40、Wide Temp Range: -20¡ãC to +70¡ãC, Specialized Temp range: -40¡ãC to +90¡ãC</p><p>　　LCD STN & FSTN Modules / Multiplexed: Standard Temp Range: 0¡ãC to +

41、50¡ãC, Wide Temp Range: -20¡ãC to +70¡ãC, Specialized Temp range: -40¡ãC to +80¡ãC</p><p>　　Another note to remember is the LCD Glass and Polarizers are not

42、the only limiting factors in the temperature range of the LCDs. You also need to take into consideration the temperature limitations of the backlight and controller ICs that may be present along with the LCD.</p>

43、<p>　　LCD Module Backlighting</p><p>　　When developing an LCD Module, a backlight can be added to light the LCD and there are several options available to backlight a LCD module. The considerations in b

44、acklighting a display are the lighting intensity, life of the backlight, and the power it consumes. Here is a quick comparison of the backlights available.</p><p>　　LED: Offered in both edge and array lit, t

45、his technology is preferred due to its variety of colors, intensity, long life (>100K Hrs), wide temperature range, and low voltage requirements. The downsides are the power consumption of some configurations (large s

46、izes), and the uniformity of the lighting for those same configurations.</p><p>　　EL Panel: This backlight is very low power, but it requires a high voltage (120VAC @ 400Hz Typically) and it has a relatively

47、 short life (half intensity life \<4K Hrs), and medium temperature range.</p><p>　　Cold Cathode Florescent Lamp: This backlight has a lot of intensity for the power consumed, and has its applications for

48、the larger LCD displays. The downsides are a short life span (\<20K Hrs), vibration will reduce the lifespan of the tube, limited temperature range, and the high voltage it needs to operate (>300VAC @ 30-80KHz).<

49、;/p><p>　　LCD Glare Filter</p><p>　　It is possible to put an anti-reflective filter over the front of a display to improve viewability in harsh lighting conditions. This filter is bonded directly t

50、o the front polarizer of the display and its front surface either physically or chemically roughened. This surface re-direct the light waves so that they continue traveling forward instead of reflecting back toward the o

51、bserver. New anti-reflective materials can reduce the front surface reflections to less than 0.3% or less.</p><p>　　Physical Size</p><p>　　In general, the larger the display, the higher the pric

52、e. The most expensive part of the Glass or Module LCD in most cases is the glass. Manufacturers usually use a master laminate (Sheet of glass) which is 14" x 16". We can produce a single display that size, or w

53、e can partition the array into hundreds of smaller displays . Our strategy is to maximize the number of individual displays which we can get onto this laminate. We therefore recommend display sizes that give our customer

54、s maximum glass</p><p>　　First LED Summary </p><p>　　LED (Light Emitting Diode), light-emitting diode, is a solid state semiconductor devices, which can be directly converted into electricity t

55、o light. LED is the heart of a semiconductor chip, the chip is attached to one end of a stent, is the negative side, the other end of the power of the cathode, the entire chip package to be epoxy resin. Semiconductor chi

56、p is composed of two parts, part of the P-type semiconductor, it inside the hole-dominated, the other side is the N-type semiconductor, here</p><p>　　Second LED history and development</p><p>　

57、　50 years ago, people have to understand semiconductor materials can produce light of the basic knowledge, the first commercial diodes in 1960. English is the LED light emitting diode (LED) acronym, and its basic structu

58、re is an electroluminescent semiconductor materials, placed in a wire rack, then sealed with epoxy resin around, that is, solid package, Therefore, the protection of the internal batteries can play the role of line, so t

59、he seismic performance LED good. </p><p>　　LED is the core of the P-type semiconductor and components of the N-type semiconductor chips, the P-type semiconductor and N-type semiconductor between a transition

60、 layer, called the PN junction. In some semiconductor materials in the PN junction, the injection of a small number of carrier-carrier and the majority of the extra time will be in the form of light energy to release, th

61、us the power to direct conversion of solar energy. PN junction on reverse voltage, a few hard-carrier injection, it </p><p>　　Instruments used for the first LED light source instructions, but all kinds of li

62、ght colored LED lights in traffic and large screen has been widely applied, have a very good economic and social benefits. The 12-inch red traffic lights as an example, is used in the United States have long life,

63、 low-efficiency 140 watt incandescent lamp as a light source, it produced 2,000 lumens of white light. The red filter, the loss-90 percent, only 200 lumens of red light. In the light of the new desig</p><p>

64、　　For general lighting, people need more white light sources. The 1998 white LED successful development. This is the GaN LED chip and Yttrium Aluminum Garnet (YAG) package together cause. GaN chip of the Blu-ray (λ p = 4

65、65nm, Wd = 30nm), made of high-temperature sintering of the Ce3 + YAG phosphors excited by this Blu-ray after irradiating a yellow, the peak 550 nm. Blue-chip installed in the LED-based Wanxing reflection in the cavity,

66、covered with a resin mixed with YAG thin layer, about 200-500 </p><p>　　The development of LED display can be divided into the following phases: first phase 1990 to 1995, mainly monochrome and 16 color graph

67、ics screen. Used to display text and simple images, mainly used in railway stations, financial securities, banks, post offices and other public places, as public information display tools. The second stage is from 1995 t

68、o 1999, there have been 64, 256 level gray-scale two-color video screen. Video control technology, image processing, optical fiber communication </p><p>　　Third LED advantages</p><p>　　Conducto

69、r light-emitting diode (LED) as a third-generation semiconductor lighting source. This fantastic product has a lot of advantages: (1) efficient light: spectra of almost all concentrated in the visible light frequency, th

70、e efficiency can reach 80% -90%. The luminous efficiency of incandescent visible light efficiency of almost 10% -20% only. (2) high quality of light: not as a result of spectrum UV and infrared, there is no heat, no radi

71、ation, is typically a green light illumination. (3) </p><p>　　Fourth Classification of LED display </p><p>　　1, color by color can be divided into Single-color display: Single color (red or gr

72、een). Two-color display: red and green dual-color, 256 gray scale levels, can display 65,536 colors. Full-color screen: red, green, blue color, 256 grayscale full color display can display more than 16 million kinds of

73、 colors. 2, according to display device classification LED Digital Display: 7 segment display devices for the digital control code, suitable for production of the clock screen, the interest </p><p>　　I

74、t is a semiconductor light-emitting diode by controlling the display, which probably look like that from lots of small red lights are usually formed by the bright lights off to show character. Used to display text, graph

75、ics, images, animations, quotes, video, video signals and other information on the display screen.</p><p>　　Graphic display and LED display into the video display by the LED matrix blocks. Graphic displays c

76、an be synchronized with the computer display Chinese characters, English text and graphics; video display using micro-computer control, graphics, images, and Mao, real-time, synchronization, clear message to the broadcas

77、t of a variety of information dissemination, but also shows two dimensional, three-dimensional animation, video, TV, VCD programs and live on. LED display shows the screen brightly </p><p>　　LED display can

78、show changes in the numbers, text, graphics and video; not only can be used in the indoor environment can also be used for outdoor environment, with a projector, TV wall, LCD screen can not match advantage.</p>&l

79、t;p>　　Sixth LED screen test method</p><p>　　A look at Screen size, appearance, smoothness, with the screen connection and so on Second look after the dead pixel screen light up, not in not within the sc

80、ope of (in general the screen is basically gone now) Color consistency, display text is normal, display pictures, play full screen full color to white, red, green, and blue.</p><p><b>　　中文翻譯</b>

81、</p><p>　　液晶顯示器玻璃基板或液晶顯示模塊</p><p>　　設計液晶顯示器的最基本步驟是決定顯示器是否附加驅(qū)動電路(如果有則為液晶顯示模塊，否則只能為液晶顯示玻璃基板)。這兩種設計方案選擇均有優(yōu)點和缺點。</p><p>　　客戶購買的自定義液晶顯示模塊，其基本電子線路設計已經(jīng)有生產(chǎn)商完成。這顯而易見節(jié)省了設計者大量設計時間，并且減少了至最終產(chǎn)品上市

82、所用到的人力資源。對縮短設計周期的先前研究給了設計者很多寶貴的經(jīng)驗，使其從中獲益匪淺，最終帶來最佳產(chǎn)品。設計者最重要是要確定接口和所需綜合背光器件的類型，眾多接口中應用最廣泛的是標準串行或并行接口。溫度范圍，可視角度，取景模式和對比度都是需要考慮的，但是對于業(yè)績顯示玻璃基板和液晶顯示模塊來說這些參數(shù)設計是大同小異的。</p><p>　　一塊液晶顯示器玻璃基板將設計任務交給使用者。為了完成設計任務，設計者需要學習

83、大量關于液晶顯示器的知識。幸運的是網(wǎng)站為我們提供了應用信息和網(wǎng)絡連接，這些幫助我們查找所需的信息。</p><p>　　購買液晶顯示器玻璃基板的最主要原因是減少成本并使設計靈活。制作驅(qū)動電路所需組件總成本通常低于預建模塊成本，并且如果你的PC板上存在足夠的空間，你不需要額外買一塊PC板專門為顯示器分區(qū)，因此也會得到具有成本效益的組裝和測試。通過做一點功課，你的設計會和已有模塊一樣工作，并且為設計者將他們的設計適用

84、于不斷變化的需求提供了必須的靈活性。</p><p>　　液晶顯示器圖像的種類</p><p>　　液晶顯示圖像包括字符圖標，段，圖像點陣以及其他任何二者組合。</p><p>　　圖標：制作自定義液晶顯示器時，你可以在玻璃基板上設置一些特別補充該產(chǎn)品的圖像，人們稱這些圖像為“圖標”。這些大致輪廓可以形成任何一種你需要的圖像。在液晶顯示器上，我們稱這些輪廓為一個像素

85、或一個點。</p><p>　　段：液晶顯示器的段組成了更大的字符，比如一個七段數(shù)字字符段(顯示0—9)，或者比如一個14段字母數(shù)字字符段(顯示數(shù)字0—9以及字母A—Z)。</p><p>　　點列陣：這些點列陣幾乎涵蓋所有規(guī)模和網(wǎng)點數(shù)。這里有一個例子，字符型顯示器用一系列5*7點陣顯示一個字母數(shù)字字符的字符串，或者使用一個更大的320*240圖形點陣顯示可變大小的字母數(shù)字字符圖像。<

86、;/p><p>　　液晶種類和技術-TN-STN=FSTN=DSTN-CSTN</p><p>　　這種技術的應用決定于你設計的液晶顯示器的具體工作要求。由于不同的方案都可以很好的完成任務，最終成本是必須考慮的。因此在這里我們快速了解一下我們上面提供的技術。</p><p>　　TN：生產(chǎn)成品低，電路耗能少?？梢暯嵌炔缓茫瑢Ρ榷纫话?。染色：灰黑色。靜態(tài)顯示首選，但是在高

87、達32:1的復合率下運行良好。液晶顯示器玻璃基板的最愛。</p><p>　　STN：生產(chǎn)成本和功耗中等，平均可視角度，平均對比度。染色：黑綠色或者深藍灰色。高復合率下工作狀態(tài)良好。液晶顯示模塊的最愛，高端液晶顯示器玻璃基板的選擇。</p><p>　　FSTN：生產(chǎn)成品中等偏上，電路耗能中等偏上。良好的可視角度，完美的對比度。染色：黑白色。高復合率下工作狀態(tài)良好。高端液晶顯示模塊的最愛。

88、</p><p>　　陰影：陰影是在顯示器畫面翻轉(zhuǎn)的影響下形成的，并且只出現(xiàn)在能傳送圖像的顯示器上。這個視覺效果是讓背光定義像素打開“打開”(透明)，而“關閉”像素仍然不透明。這種配置在溫和且低光照的條件下最佳。</p><p><b>　　顯示方式和偏光片</b></p><p>　　顯示方式是由后置偏光片控制的，就偏光片是否反射光線來說我們

89、將查看方式分為三種。</p><p>　　反射型：這種偏光器的類型在高，中度環(huán)境光線下給顯示器最亮的顯示以及盡可能高的對比度。不幸的是，在夜晚或者光線不斷變化的環(huán)境中，想要看到顯示器上的內(nèi)容是非常困難的。(想想那些游戲男孩吧)</p><p>　　半透反射型：(最受歡迎的解決方案)如果你設計的液晶顯示器必須在廣泛的光線變化環(huán)境下顯示，通常會希望用半透反射顯示器，這樣在明亮的太陽光下可以輕松

90、讀取顯示器上內(nèi)容。</p><p>　　但是在傍晚和夜晚依然會有顯示不正常的問題。設計半透反射型顯示器的一個折中方法是：當外部光線很足的時候，該液晶顯示器按照反射型工作，而當外部光線不足的時候，它又能當作透射型使用。。這樣最終你會找到二者之間一個可以接受的方法，然后設計出可接受的顯示器。</p><p>　　透射型：這種顯示器需要有一個工作背光，除非它從一個窗口類型的設備獲得光線。通過它的

91、發(fā)光可以照亮位于上方的液晶板，實際就起到一個“光源”的作用。當發(fā)光板封裝在液晶顯示器里后，背光板也許會產(chǎn)生過強的光線。透射式顯示屏的優(yōu)點是能夠在昏暗情況下使用戶能看到亮度均勻的屏幕，但是在電量消耗巨大，并不適合能量短缺時的應用，且其需要背光板常亮。請謹記，如果沒有背光的激活這種偏光板的選擇是不會工作的。</p><p>　　偏光板經(jīng)常受溫度影響，因此當選擇一種偏光板時，必須設定偏光板的質(zhì)量等級。當確定顯示器的工作

92、環(huán)境溫度要求后，你可以確定偏光板的等級。下面給出幾種典型的選擇。</p><p>　　商業(yè)級偏極片：適用于室內(nèi)或大都數(shù)情況下都在室內(nèi)使用的顯示器。這種偏極片在大部分儀器，辦公用品，家電產(chǎn)品以及其他遠離高溫，日照和潮濕的產(chǎn)品中穩(wěn)定性很好。</p><p>　　工業(yè)級偏極片：適用于極端環(huán)境，這種偏極片專門為戶外顯示器設計，尤其適用于極度潮濕環(huán)境。我們定義偏極片為工業(yè)級</p>&

93、lt;p><b>　　視角</b></p><p>　　液晶顯示器部分的視角定義為垂直于顯示器中心的上，下，左，右角度。</p><p>　　6:00方向是從下往上看垂直可視平面具有最佳對比度的視角。(最流行的視角)</p><p>　　12:00方向是從上往下看垂直可視平面具有最佳對比度的視角。</p><p>

94、　　9:00方向是從左往右看垂直可視平面具有最佳對比度的視角，(不常用)</p><p>　　3:00方向是從右向左看垂直可視平面具有最佳對比度的視角。(不常用)</p><p>　　請牢記視角與直接驅(qū)動顯示器比是次要的。一個基本規(guī)則是：復合率越高，視角越重要。同理，如果一個帶著偏極片眼鏡的人來看你的顯示器，你必須在評論部分說明這些，確保一個帶著偏極片眼鏡的觀察者不會困惑。然后你還有謹記，

95、關于報價問題，當你改變主意變化了顯示器最終的視角，顯示器的價格不應用有大多變化(通常只是上下浮動幾美分)</p><p>　　環(huán)境主意事項——溫度范圍</p><p>　　液晶顯示器的正常工作溫度和存儲溫度是設計時需要重點考慮的，因為如果液晶顯示器工作溫度超過或低于正常工作溫度范圍會使液晶屏不正常工作(當工作在非正常工作溫度時)，甚至會永久損害液晶顯示器(工作在非正常存儲溫度下)。液晶顯示

96、器的正常工作溫度范圍由液晶顯示器液態(tài)晶體，偏極片，工作電壓和復合率共同決定。這樣出，除去仔細研究這些參數(shù)的不同組合，下面有列出了一些基本規(guī)則，你可以使用這些規(guī)則規(guī)定你設計的液晶顯示器的正常工作溫度范圍，之后在你選擇恰當?shù)囊壕э@示器液態(tài)晶片，偏極片以及工作電壓時液晶顯示器生產(chǎn)商可以提供幫助。以下靜態(tài)值是典型的液晶顯示器工作范圍。</p><p>　　液晶顯示器TN玻璃基板/靜態(tài)或低復合率時：標準溫度范圍：-10℃-

97、-+60℃，最大溫度范圍：-40℃--+80℃，專業(yè)溫度范圍：最低工作溫度可達-55℃，最高工作溫度為+110℃。</p><p>　　液晶顯示器TN顯示模塊/復用時：標準溫度范圍：0℃--+50℃，最大溫度范圍：-20℃--+70℃，專業(yè)溫度范圍：最低工作溫度可達-40℃，最高工作溫度為+90℃。</p><p>　　液晶顯示器TN和FSTN顯示模塊/復用時：標準溫度范圍：0℃--+50

98、℃，最大溫度范圍：-20℃--+70℃，專業(yè)溫度范圍：最低工作溫度可達-40℃，最高工作溫度為+80℃。</p><p>　　還有一點設計者應該注意，確定液晶顯示器正常工作范圍時，液晶顯示器液體晶片和偏極片并不是唯一的限制條件。設計時必須也考慮到可能用到的背光板和控制器IC的正常工作溫度范圍。</p><p><b>　　液晶顯示模塊背光</b></p>

99、<p>　　開發(fā)液晶顯示模塊的過程中，背光板用來給液晶顯示模塊提供照明，現(xiàn)在有很多可行方法設計液晶顯示模塊背光板。顯示器背光時需要注意一些參數(shù)的設置，如照明強度，背光板使用壽命，背光板消耗的功率。下面給出現(xiàn)有的背光板并對他們進行簡單的比較。</p><p>　　LED：LED背光板要求在照明區(qū)域內(nèi)具有一定的均勻光通量和照度，所以需要采用陣列。這項技術提供了多種顏色，適宜光通量，并且使用壽命長，正常工作

100、溫度范圍廣，工作電壓低，因此廣受歡迎。該種板的局限是一些配置(大尺寸)的功率消耗，以及對這些配置照明的一致性。</p><p>　　EL(艾爾)面板：EL板的背光功率很低，但是需要一個很高的電壓(典型的是120VAC ，400Hz)，并且EL板的使用壽命相對較短，正常工作溫度范圍一般。</p><p>　　冷陰極熒光燈泡：這個背光強度功率消耗很大，應用于大型液晶顯示器。冷陰極熒光燈泡缺點是