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OLED 元件操作壽命之提昇 林政賢. Outline Introduction OLED display and Lighting PM and AM Driving OLED Fabrication Device Physics Passivation Layer Tandem OLED.

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Presentation on theme: "OLED 元件操作壽命之提昇 林政賢. Outline Introduction OLED display and Lighting PM and AM Driving OLED Fabrication Device Physics Passivation Layer Tandem OLED."— Presentation transcript:

1 OLED 元件操作壽命之提昇 林政賢

2 Outline Introduction OLED display and Lighting PM and AM Driving OLED Fabrication Device Physics Passivation Layer Tandem OLED

3 Introduction OLED display and Lighting PM and AM Driving OLED Fabrication Device Physics Passivation Layer Tandem OLED Outline

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5 Band Diagram of OLED

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7 OLED 優點與缺點 自發光,不需要背光模組 高亮度 響應時間短 (< 2 μs) 高對比 廣視角 ( 接近 180 o ) 重量輕、厚度薄 構造簡單,低成本 可撓性 ( 塑膠基底 ) 可全彩化 壽命短 高驅動電壓 光譜寬 優 點缺 點

8 Outline Introduction OLED display and Lighting PM and AM Driving OLED Fabrication Device Physics Passivation Layer Tandem OLED

9 OLED Display Sony 11 inch, XEL-1 3mm thickness

10 OLED Lighting OLED LED

11 Outline Introduction OLED display and Lighting PM and AM Driving OLED Fabrication Device Physics Passivation Layer Tandem OLED

12 Passive Matrix Driving

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16 Active Matrix Driving Scan line Data line

17 Active Matrix Driving Cross Section of Bottom Emitting AMOLED Cross Section of Top Emitting AMOLED

18 Passive Matrix (PM) Active Matrix (AM) Easy-fabrication and Low-cost High power consumption and Short lifetime Suitable for large size and Long lifetime The thin-film transistor decreases the aperture ratio Advantages Disadvantages

19 Outline Introduction OLED display and Lighting PM and AM Driving OLED Fabrication Device Physics Passivation Layer Tandem OLED

20 Process of OLED Substrate Pillar ITO

21 Negative PR Proximity Aligner (broad band) hv Negative Resist Coating

22 SEM Profile

23 Full Color Capability

24 Patterned Lateral RGB Emitters Fine Pitch Shadow Mask requirements: –Resolution –Undercut angle –Surface roughness –Holding mechanism –Thermal stability

25 Physical Vapor Deposition 距離遠,材料易浪費

26 Ink Jet Printing (IJP)

27 Laser Induced Thermal Imaging (LITI)

28 Laser-induced Pattern-wise Sublimation (LIPS)

29 整體圖

30 Outline Introduction OLED display and Lighting PM and AM Driving OLED Fabrication Device Physics Passivation Layer Tandem OLED

31 Singlet and Triplet Exciton hv Singlet ground state Singlet excited state Triplet excited state : Spin up : Spin down

32 Spin Angular Momentum Vector of Electron with Different Spin States ħ/2 ħ Z ħ Z

33 Coupling of Spin Angular Momenta of Two electrons θ1θ1 θ0θ0 θ-1θ-1 Σ 1/43/4 Z SingletTriplet

34 Energy Transfer

35 Phosphorescent OLED Ref. : M. A. Baldo et al., APL, 75, 4, 1999

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38 OLED Device Structure

39 Outline Introduction OLED display and Lighting PM and AM Driving OLED Fabrication Device Physics Passivation Layer Tandem OLED

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42 Bottom Emission OLED

43 Barix Layer Al 2 O 3 polyacyrlate 使水氣不易進入

44 Barix Layer

45 Atomic Layer Deposition (ALD) Al(CH 3 ) 3 (g) + :Si-O-H (s) → :Si-O-Al(CH 3 ) 2 (s) + CH 4

46 Atomic Layer Deposition (ALD) OH 取代 CH 3 2H 2 O (g) + :Si-O-Al(CH 3 ) 2 (s) → :Si-O-Al(OH) 2 (s) + 2CH 4

47 AlOx with ALD a a b b c c No passivation ALD passivation Glass lid encap

48 Outline Introduction OLED display and Lighting PM and AM Driving OLED Fabrication Device Physics Passivation Layer Tandem OLED

49 Stacked OLED

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