Electro-optical properties of conic cylindrical-cavities liquid crystal displays
- Resource Type
- Authors
- Shu-Hsia Chen; Bau-Jy Liang; Chi-Ray Wu
- Source
- Liquid Crystals. 29:697-706
- Subject
- Liquid-crystal display
Materials science
Differential equation
business.industry
General Chemistry
Condensed Matter Physics
Viewing angle
Conic constant
law.invention
Distribution (mathematics)
Optics
Conic section
law
Liquid crystal
General Materials Science
business
Matrix method
- Language
- ISSN
- 1366-5855
0267-8292
Experimental results have shown that the conic cavities in conic closed-cavity liquid crystal displays (conic CCLCDs) can give a wide viewing angle and grey levels without grey-scale inversion. The purpose of this paper is to extend investigations of conic CCLCDs. In experiments, we describe in detail the fabrication process, microscopic observations and optical measurements for conic CCLCDs. The simulation of director distribution will be based on the tensor form formulation of the free energy density. The differential equations satisfied by the steady-state director distribution are derived from this form of free energy and are solved in conjunction with Poisson's equation. The simulation of the optical propagation and the calculation of the optical transmittance will be based on the extended Jones matrix method. We show by simulation that a normal umbilical structure is the final stable state and that indeed conic CCLCDs can have a wide viewing angle and grey scale without grey-scale inversion. The the...