led 光源運用於背光模組之介紹
DESCRIPTION
LED 光源運用於背光模組之介紹. 大綱. 背光模組簡介 LED 背光模組光源 改善 LED 背光模組 的輝度 LED 光源之應用以及與 CCFL 之比較. 背光模組簡介. 背光模組 (Back light module) 為液晶顯示器面板 (LCD panel) 的關鍵零組件之一，由於液晶本身不發光，背光模組之功能在於供應充足的亮度與分佈均勻的光源，使其能正常顯示影像 背光模組的基本原理係將常用的點或線型光源，透過簡潔有效光機構轉化成高亮度且均一輝度的面光源產品。 - PowerPoint PPT PresentationTRANSCRIPT
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LED
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LEDLEDLEDCCFL
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(Back light module)(LCD panel)
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(Light source)(CCFL: Cold cathode fluorescent lamp)(LED: Light emitting diode)(EL)
(Light guide plate)
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(Reflector)(Diffuser) (BEF)(P-S Converter) LCD
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(Edge lighting)18 (Bottom lighting)
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(Bottom lighting)
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:LCD Intelligence, PIDA
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LEDLEDLED LED:LEDLEDRGBLEDRGBLED
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LEDLED LEDLEDLCD LED LEDRGBRGBLED
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LED
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LEDRGBLEDRGBLEDLEDRGBLEDRGBLED
RGBLEDRGB
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LED
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LEDLED:
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-OSRAMSiCflip chipmirror
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-
-
-LED0LEDLED
LED
PCB
LED-OZ:l
O
o
Chart1
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0.95
0.9
0.8
0.65
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0.6
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10.950.90.80.650.5
Sheet1
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Sheet2
Sheet3
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-:LEDLEDLED
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-LED()(t)LED(d)LED%LED
LED
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0
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Sheet2
00.10.20.3
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Sheet2
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0
0
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Sheet3
-
-LED
LED
PCB
LCD
O
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LED
PCB
LCD
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-0.81.0mm
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-LEDLEDLEDLED
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LY
HLEDePCLYIAiLEDJgg{H
LED
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InGaNLED(VF) 20mA34VLED1VInGaNLEDLEDLED: -LED (VF) -LED -
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qy():jq :p
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qy():pq :h
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(lithium ion)3.6VTYPE14VTYPE2
Chart4
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44
3.94
3.763.9
3.63.8
3.43.7
3.243.8
32.04
2.652.14
2.241.9
1.71.75
1.51.5
TYPE1
TYPE2
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(V)
Sheet1
:l00.10.20.30.40.50.6
10.950.90.80.650.5
Sheet1
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0
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Sheet2
00.10.20.3
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Sheet2
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Sheet3
()123456789101112
(V)443.93.763.63.43.2432.652.241.71.5
4443.93.83.73.82.042.141.91.751.5
Sheet3
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00
00
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00
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TYPE1
TYPE2
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(V)
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LEDLED: -DC/DC(converter) 1216V(LED) - -LEDLEDVF
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CCFL LED
:IEK-IT IS
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CCFL & LED SpectraCIELEDCCFLCIE(Lumileds)
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CCFL & LEDCCFL CIE RGB LED RGB CIE RGB CIERGB LED CCFLLED
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CCFL & LED
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LEDLED23LEDRGBLED20032.5 LED10LED(inverter)2006LEDLED1/6LED
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Too Expensive to LED
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www.eedesign.com.tw552