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1、發光二極體LED介紹,發光二極體 LED,發光二極體：LED，Light Emitting Diode是一種固態的半導體元件，可以將電能直接轉換為光源。,Dies construction : Including P layer, N layer, Substrate, Contact Pad.,Contact pad including Top side and Bottom side. Material is Al or Au P layer at top is P-type. N layer at top is N-type. Substrate is GaAs, GaP,etc.,Di
2、e Process,LEDs Symbol,Provide Forward Voltage.,Provide Reverse Voltage.,Optical characteristics :,發光二極體 LED,發光二極體 LED,LED Cost Percentage,4. Application-1.,Ex： 15-21 series 17-21 series 67-21 series 91-21 F7 series 95-21 F7 series ,Top View Type,Emitting Direction,Emitting Direction,Paste,Paste,Appl
3、ication-2,Ex： 12-21 series 12-215 series 27-21 series 96-22 series 99-21 series ,Side View Type,Emitting Direction,Paste,Application-3,Ex： 23-21 series 24-21 series 67-21 series 91-21 F10 series 95-21 F10 series ,Reverse Type,Emitting Direction,Emitting Direction,Paste,Paste,LED的應用與發展方向,白光LED未來發展趨勢,
4、汽車市場：車外燈 車燈 發光顏色 LED使用可能性 備註 第三煞車燈 紅 可 歐洲使用率約50 煞車燈 紅 可 Mercedes S-Klasse Maserati 3200GT 側標示燈 紅、橘 可 停車燈 紅、黃、橘、白 可 車寬燈 橘、黃、白 可 方向燈 黃、橘、紅 可 Alfa 166 Maserati 3200GT Cadillac 2000DeVille 霧燈(前） 白、黃 可能性小 霧燈(後） 紅 可能性小,汽車市場：車內燈 SMD （A類、B類、C類） 3 5 顏色/波長 590nm Amber 605nm Orange 565/558mm Green 590/592nm Am
5、ber 615nm Red-Orange 590nm Amber 605nm Orange 626nm Red 637/626nm Red 615/617nm RO 644nm Deep Red 626/630nm Red 角度 A類：15o/125o B類：165o 40o / 60o 6o / 15o / 23o / 30o C類：120o 操作溫度 A類：-40100oC B類：-4085oC -2085oC 40100oC C類：-55110oC 應用 A類：一般用途 B類、C類：背光源 一般用途 汽車內外燈,White LED新產品介紹,白光發光的方式,白光展示盒,白光的SWOT,資
6、料整理: 怡富投顧,白光的應用,指示燈 攜帶式手電筒 背光板 照明 醫療照明,白光市場的預估 根據預估到2003年, 白光市場規模將達270億美元, 每年的複合成長率超過三成。 而近年來歐、美、日各國在全球節能、環保的共識下，也選擇了白光LED作為二十一世紀照明的新光源。 傳統光源的取代 , 市場商機龐大. 。,白光 LED 未來的願景,3 E 目標,Energy ( 能源 ) Environment ( 環境 ) Efficiency ( 效率 ),目前白光所遭遇到的困難,如何提升白光 LED 效率, 以加速其在傳統照明市場的佔有率 Nichia 專利問題 高成本,NICHIA News o
7、n Web,LED IN BACKLIGHT MODULE,LCD backlight solutions IV,Prism lens,Diffuser,Light pipe,SIDELED,Dots pattern,Reflective sheet,Increasing the light extraction efficiency by additional layers:,More About LED,s,Realisation,Converter material,Premolded leadframe,Result,Physical construction,Foil White L
8、ED 5,Converter pigments in resin,Package,Crystal Structure of III-V-Compound Semiconductors,Substrate,Epitaxy,MOVPE,Chip Technologies,Diffusion Metallization Fotolithography Grinding Sawing Chemical Etching Probing,Assembly on dedicated lines,Probing,SMT-Topled ,Axial - Lamps,Die Bonding Wire Bondin
9、g Encapsulation Probing Sorting Quality Tests,Technology Steps for Opto Devices,Hydrogen,Principles of the Metal Organic Vapor Phase Epitaxy,foto resist,exposure by UV radiation,Fotolithography for structuring of metallization,removing by etching,Chip Technologies for Opto Semiconductors,Chip Techno
10、logies for Opto Semiconductors,White Semiconductor Light Sources,III/V Technologies for Optoelectronics,High Brightness InGaAlP - Technology for Red, Orange, Amber and Yellow,High Brightness InGaN - Technology for Blue and Green,InGaN and InGaAlP High Brightness LEDs,Application: Liquid Crystal Disp
11、lay Backlighting,Alternative technologies:,Communication Application: Major Design Win,10 ChipLED InGaN white Key Backlight,Premium Class Phone 8850,ChipLED white,6 Chipled InGaN white LCD Backlight,Additional projects using MicroSIDELED for LCD backlight are under development,Types of displays,Full
12、 color video/graphic displays,General information panels,VMS,LED Graphics Display - Requirements,Indoor,Semi-outdoor,Outdoor,Panel Brightness pixel Brightness Pixel Pitch, 5000 cd/m2 500 mcd 10 to 50 mm,400-1000 cd/m2 100 mcd 3 to 10 mm,1000-5000 cd/m2 500 mcd 4 to 10 mm,LED Application : Communicat
13、ion,LCD Backlight outside 2 MicroSIDELED InGaN white,Key Backlight 10 Chipled InGaN white,LED Application : Full Color Display,Multi TOPLED ,OVAL LED,Indoor full color display,Outdoor full color display,Lamp Modules Application : Signalling,LED Modules for signalling traffic signalling railway signa
14、lling streetguiding and marking LED Modules offers highest phantomlight suppression (TRAFFICsignal) class 5 of EN 12368 enhanced safety economic efficiency reduced maintenance costs,Lamp Modules Application : Illuminated Signs and Contours,LED Modules for illuminated signs and contours channel letter edge lighting LED Modules offers best colour saturation possibility of small channel letter systems elaboreted design oportunities variable illuminance due to product features easy installation,Lamp Modules Application : General Lighting,LED
