Low-voltage and high-transmittance blue-phase liquid crystal display with concave electrode

ABSTRACT

A low-voltage and high-transmittance blue-phase liquid crystal display (BPLCD) with concave electrodes is proposed. We use in-plane switching electrodes on the etched substrates to generate the concave electrodes. The proposed device can generate a strong in-plane field with a large horizontal component to increase the transmittance and reduce the operating voltage. As a result, a low voltage ~9 V and reasonably high transmittance ~71.7% can be achieved. Moreover, due to the generated multi-domain structures in the etched areas, this BPLCD can obtain a symmetric and wide viewing angle and the contrast ratio of 1000:1 is obtained over 60° viewing cone.

Graphical Abstract

KEYWORDS:

• Blue phase
• liquid crystal display
• low voltage
• high transmittance

Disclosure statement

No potential conflict of interest was reported by the authors.

Additional information

Funding

This work is supported by the National Natural Science Foundation of China [grant numbers 61535007], [grant numbers 61320106015]; the ‘863’ Program [grant number 2015AA015902].