Organic Thin Film Transistor (OTFT) Technology and Industry Trend

Organic Thin Film Transistor (OTFT) Technology and Industry Trend published by DisplayBank in September, 2009. This report price starts from US $ 5500.

Introduction

Abstract

TFT Array that is the biggest technological barrier in Flexible Display, currently discussed as the next generation display, is generally made with silicon being the basic material. But, because silicon semiconductor material is not sufficient to make flexible display which needed to be light, bendable and also foldable, necessity to newly develop semiconductor with more gentle material other than silicon.

Accordingly, Organic Thin Film Transistor (OTFT) development that has simple manufacturing process with low production cost and also non-breakable to impacts that can be bended and folded, has been argued to be the most important research area.

The development of OTFT was renewed from its commercialization perspective with Samsung Electronics' announcing 15" XGA TFT-LCD utilizing Organic Thin Film Transistor (OTFT) for the first time in the world in 2005. In 2007, SONY had realized for the first time in the world an All Organic Display that combined Plastic Substrate, Organic Thin Film Transistor (OTFT) and Organic Light Emitting Diode (OLED) using Flexible OLED made on top of plastic substrate using organic semiconductor.

Also, Plastic Logic announced its plan to mass produce 10-inch class e-Paper from 2009 using Organic Thin Film Transistor (OTFT) array created using Inkjet Printing.

The "Organic Thin Film Transistor (OTFT) Technology and Industry Trend" comprises

• (1) Organic Thin Film Transistor' s Material & Device Technology,
• (2) Development Trend by Maker,
• (3) OTFT' s Current Key Issues & Development Direction.

Table of Contents

1. OTFT Overview

• 1.1. OTFT Overview
• 1.2. Development History of OTFT

2. Conductivity Property of Organics

• 2.1. Energy Band of Organic Molecule
• 2.2. Basic Property of Organic Semiconductor
  • 2.2.1 Requirement Property of Organic Semiconductor Material
  • 2.2.2 Requirement Property of Organic Insulator
    • 2.2.2.1 Dielectric Constant
    • 2.2.2.2 Heat Resistance
    • 2.2.2.3 Solvent Resistance
    • 2.2.2.4 Photosensitivity
    • 2.2.2.5 High Planarization
    • 2.2.2.6 Optimized Interface Property
    • 2.2.2.7 Insulation Destruction Strength
    • 2.2.2.8 Even Surface Shape
• 2.3. Type of Organic Semiconductor
  • 2.3.1 Vacuum Deposition-use Semiconductor
    • 2.3.1.1 p-type Semiconductor
    • 2.3.1.2 Type of p-type Semiconductor
    • 2.3.1.3 n-type Semiconductor
    • 2.3.1.4 Type of n-type Semiconductor
  • 2.3.2 Solution Process-use Semicondcutor
    • 2.3.2.1 Solution Process-use p-type Semiconductor
      • 2.3.2.1.1 Small Molecule Solution Process-use p-type Semiconductor
      • 2.3.2.1.2 Type of Small Molecule Soluation Process-use p-type Semiconductor
      • 2.3.2.1.3 Polymer Solution Process-use p-type Semiconductor
      • 2.3.2.1.4 Type of Polymer Solution Process-use p-type Semiconductor
    • 2.3.2.2 Blend System
    • 2.3.2.3 n-type Solution Process-use Semiconductor

3. Operation Principal and Theory of OTFT

• 3.1. TFT Structure
  • 3.1.1 Common Structure of OTFT
  • 3.1.2 Diverse Approach to New OTFT Structure
• 3.2. Operation Principal of OTFT
• 3.3. Requirement Property of OTFT
  • 3.3.1 Property of OTFT
    • 3.3.1.1 Charge Mobility
    • 3.3.1.2 On/Off ratio
    • 3.3.1.3 Threshold Voltage
    • 3.3.1.4 Subthreshold Swing
    • 3.3.1.5 Contact Resistance
  • 3.3.2 Requirement Property of OTFT Product
• 3.4 Property Change Factor of OTFT

4. OTFT Manufacturing Process

• 4.1 Organic Thin Film Filming Process
• 4.2 Organic Gate Insulator Thin Film Filming Process
• 4.3 Metal Electrode Process

5. OTFT Display Device Application

• 5.1 e-Paper Application
• 5.2 LCD Application
• 5.3 OLED Application
• 5.4 Other Applications
  • 5.4.1 Radio Frequency Identification (RFID)
  • 5.4.2 OTFT Sensor

6. OTFT Development Status by Maker

• 6.1 Makers in Material Field
  • 6.1.1 Korea
  • 6.1.2 Others
• 6.2 Makers in Device Field
  • 6.2.1 Korea
    • 6.2.1.1 LG Display
    • 6.2.1.2 Samsung Electronics
    • 6.2.1.3 ETRI
  • 6.2.2 Japan
    • 6.2.2.1 Sony Cooperation
    • 6.2.2.2 Hitachi Cooperation
    • 6.2.2.3 Pioneer Cooperation
  • 6.2.3 U.S. & Europe
    • 6.2.3.1 Penn State University
    • 6.2.3.2 Plastic logic
  • 6.2.4 Makers in Other Device Fields
• 6.3 Makers in Application Field
  • 6.3.1 Ink Tec
  • 6.3.2.Electronics Research & Service Organization (ERSO)
  • 6.3.3. Seiko-Epson Cooperation
  • 6.3.4 Other Application Makers

7. Key Issue in OTFT

• 7.1 Issues to Be Resolved for OTFT Commercialization
• 7.2 Development Direction of OTFT
• 7.3 Potential OTFT Application Products

8. Index

• 8.1. Table
• 8.2. Figure

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