Displays require ideas and knowledge electronics

Display built into the contact lens
Aerial view of landscape display
… By size

the observation distance D = 3500 * A, where A is the linear pixel size.

Liquid crystal display devices
Display – Conductor of Information Magistral
liquid crystal display (LCD) is a thin, flat electronic visual display that uses the light modulating properties of liquid crystals (LCs).

Ways of passing light through liquid crystal displays

Transmissive mode

Reflective mode

Transflective mode

Main properties of light: polarization

Crystal property: birefringence

Liquid crystals

Fredericks effect in an electric field

LC oriented without applying an electric field
The parallel alignment of liquid crystal molecules along grooves

The basic structure of the liquid crystal cell

Creating an LCD

TFT LCD Configuration

TFT LCD technology process

TFT Manufacturing Process

Color Filter Manufacturing Process

Cell Manufacturing Process

Targets applied in TFT-LCD manufacturing

Technology of Fabrication

Organic Light Emitting Diodes (OLEDs)

LCD
Emissive Displays
LCD VS EMISSIVE DISPLAYS

OLED Device Operation

OLED Diagram

OLED and Color

Types 0f OLED

PMOLED and AMOLED

Transparent and Top Emitting OLED

Flexible and White OLED

OLED Technology
Evaporation and Shadow Masking

OLED Technology
Inkjet Printing and organic vapor phase deposition

OLED Application

MicroLED
Displays

What is a MicroLED

What is a MicroLED Display?
Also known as micro-LED, mLED or µLED.
MicroLED displays comprise several microscopic LEDs, which self-illuminate per display pixel - just like an OLED (Organic Light Emitting Diode) panel would, only MicroLED uses inorganic material.
MicroLED features miniature length less than 100 µm. Via mass transfer technology µm–level trio-color RGB MicroLEDs are moved onto substrate , creating MicroLED display in various size.

Timeline

Production methods for micro-LEDs

Major manufacturing technology bricks

MicroLED and addressing structure

MicroLED Displays
LED Technology
(epitaxy, chips)
Supply Chain
Massively Parallel and High Accuracy Pick and Place Technology
Light extraction and beam shaping
Color Conversion
Backplane Hybridization
Defect Management and Testing
MicroLed Display Manufacturing Challenges
Source: MicroLED Displays 2017 report Yole Développement

TFT-LCD vs OLED vs MicroLED

Applications of MicroLED
Smart Watches and Wearables
Virtual reality
Augmented/Mixed Reality
Automotive Head-Up Display
Large Video Displays
8K UHD TVs
Smartphones
Laptop/Tablets

Conclusion

Quantum Dot Display

Quantum Dot Size and Color

White LED vs Quantum Dot

High Color GAMUT

On-& In-Chip type of Quantum dot

MicroLED + Quantum dots
The process flow of the full-color emission of quantum-dot-based micro LED display.

White LED vs Quantum Dot-LED

On-Edge type of Quantum dot

Types of realization

On-Surface type of Quantum dot

Types of realization

Comparison of Quantum Dot Display