当代显示技术 第一章(8)

当代显示技术 第一章

2. How can we align liquid crystals?

Boundary conditions

3. How does an applied voltage affect the alignment?

Elasticity, dielectric anisotropy

4. How does the alignment affect the optics?

Optics of anisotropic and electro-active

materials

For further understanding and design of LCD:

1. Flow dynamics of LC – response time

2. Optical modeling of LCD

3. Optical modeling with additional optical elements

such as retardation films1. Transmittive: The LCD is viewed in transmission. This isoften the case for LCD with backlighting.

PolarizerLCAnalyzer

cell

当代显示技术 第一章

There is no reflector.

2. Transflective: This is the most popular. The rear reflector is

often a diffusive type reflector to eliminate mirror effects.

Reflector

PolarizerLC

cellAnalyzer

Ambient light or front lighting is used.

This transflective LCD is simply 2 transmittive LCD in tandem.3. Reflective: In a truly reflective LCD, there is only one frontpolarizer. This is a new development with HKUST being oneof the active participants.