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Updated: Jun 1, 2026
10:33
An Electrochemical Cholesteric Liquid Crystalline Device for Quick and Low-Voltage Color Modulation
Published on: February 27, 2019
High performance transflective liquid crystal display associated with fringe-field switching device
Young Jin Lim1, Suck Jae Shin, Nam Ho Cho
1Department of BIN Fusion Technology, Chonbuk National University, Jeonju, Jeonbuk, Korea.
Optics Express
|June 7, 2011
Summary
This study enhances outdoor readability for portable liquid crystal displays (LCDs) using fringe field switching technology in transflective devices. The new designs achieve high light efficiency without extra films, improving display performance.
Area of Science:
- Optoelectronics
- Display Technology
Background:
- Portable liquid crystal displays (LCDs) face challenges with outdoor readability.
- Fringe field switching (FFS) is a popular LCD technology for portable devices.
Purpose of the Study:
- To address and improve the outdoor readability of FFS LCDs.
- To investigate single and dual cell gap transflective devices for enhanced display performance.
Main Methods:
- Utilized dual orientation: homogeneous alignment in the transmissive (T) part and 64° twisted alignment in the reflective (R) part.
- Achieved dark states by controlling phase retardation in the T part and polarization rotation in the R part.
- Realized white states by rotating the liquid crystal optic axis and removing phase retardation in T and R parts, respectively.
Main Results:
- Demonstrated high light efficiency in the proposed transflective LCD devices.
- Eliminated the need for additional optical compensation films.
- Showcased strong potential for improved portable display applications.
Conclusions:
- The developed transflective FFS LCDs offer superior outdoor readability.
- The dual orientation and optimized cell gap designs contribute to high light efficiency.
- These advancements position the technology for widespread adoption in portable displays.
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