Abstract
We propose a single mode transflective liquid crystal display (LCD) which is operated as the transmissive and reflective modes in a single pixel without dividing into sub-pixels. The single pixel transflective LCD was composed of the cross-polarized nematic LCD as a light modulator and the broadband cholesteric liquid crystal film (BCLCF) as a half mirror. The BCLCF, simply prepared by the exposure of ultraviolet light to the mixture of the nematic LC and the reactive mesogen with chirality, selectively reflects a certain circular polarization but transmits the orthogonal circular polarization in entire visible light. The electro-optical properties in both transmissive and reflective modes coincide with each other.
Highlights
With increasing the digital contents, the mobile display system which can be used for contacting the information irrespective to time has been widely demanded
We propose a single mode transflective liquid crystal display (LCD) which is operated as the transmissive and reflective modes in a single pixel without dividing into sub-pixels
The single pixel transflective LCD was composed of the cross-polarized nematic LCD as a light modulator and the broadband cholesteric liquid crystal film (BCLCF) as a half mirror
Summary
With increasing the digital contents, the mobile display system which can be used for contacting the information irrespective to time has been widely demanded. Transmissive LCDs have been applied to numerous displays due to their good electro-optic (EO) performances. They have the major drawbacks of high power consumption by backlight source and low readability in outdoor environment. Reflective LCDs have no built-in backlight source due to the utilization of the ambient light as the light source for display images. By these characteristics, reflective type has attractive things such as lighter weight, thinner thickness, and lower power consumption. The reflective type is not readable when the device is used under dim environment
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