This note
explains the following topics: LED Development, Structure of High
Brightness LED, Materials used in color LEDs, Characteristics of LEDs,
Temperature effect on LED Parameters, LED Binning, LED Binning, Backlight
Applications, Resistor Limiting, Linear Regulation, Buck LED Driving, Using
Boost Regulator Parallel LED Connection, Inductive vs Charge Pump Efficiency
Comparison, Buck-Boost Driving, LED Dimming and Contrast Ratios, PWM Dimming
Control, Controlling Color, Contrast Ratio , LM3404 Delay, tD, Parallel FET Dimming, New LED Driving Tools.
This note covers the following topics: Current conduction
mechanism in LED like structures, Optical output power, Losses and efficiency, Current
crowding, Packaging, Perception of visible light and color, Visible light terminology,
Inroads by LEDs, Nitride LED performance, On the nature of light emission in nitride
based LEDs, LED degradation, LED efficiency, Monochrome applications of LEDs, Luminescence
conversion and white light generation with nitride LEDs, Approaches to white light
generation, Toward the white light applications and OLED structures.
This PDF book
covers the following topics related to Organic Light Emitting Diode : Organic
light emitting diodes based on functionalized oligothiophenes for display and
lighting applications, The efficient green emitting iridium complexes and
phosphorescent organic light emitting diode characteristics, Material Issues in
AMOLED, Nanocomposites for Organic Light Emiting Diodes, Carrier Transport and
Recombination Dynamics in Disordered Organic Light Emitting Diodes, Solution
Processable Ionic p-i-n Organic Light- Emitting Diodes, High-Contrast OLEDs with
High-Efficiency, Optimum Structure Adjustment for Flexible Fluorescent and
Phosphorescent Organic Light Emitting Diodes, a-Si:H TFT and Pixel Structure for
AMOLED on a Flexible Metal Substrate, Organic Light Emitting Diode for White
Light Emission.
Primary aim
of this note is to provide a visual source for high-urgency work that will
define the future directions relating to the organic light emitting diode (OLED),
with the expectation for lasting scientific and technological impact. The editor
hopes that the chapters verify the realization of the mentioned aims that have
been considered for editing of this book.
This note covers the following topics: Basic principles of organic
light-emitting diodes, Device preparation, materials and stack design,
Experimental techniques, Comprehensive efficiency analysis of OLEDs, Degradation
processes in OLEDs.
This note discuss the physics of a variety of device
concepts that are introduced to realize white OLEDs based on both polymer and
small molecule organic materials.
Author(s): Sebastian Reineke, Michael Thomschke
and Bjorn Lussem, Karl Leo
This note covers the
following topics: Fundamentals of Semiconductor Diodes,
Light Emitting Diode Construction, Development of Multiple LED Colors, White
Light LEDs.
Author(s): Michael W.
Davidson and The Florida State University