37.1: Distinguished Paper: A Novel Blue Phase Liquid Crystal Display Applying Wall‐Electrode and High Driving Voltage Circuit

Abstract

Abstract

P‐166: Single‐TFT‐driving Blue‐phase LCD with Diamond‐shape Electrodes

“…[14]. As a matter of fact, such a BPLC mixture (Δε < 100) has already been experimentally proven by AUO in a 10" prototype [17]. Indeed, its overall performance is quite impressive except that V on is still as high as 32 V rms .…”

Optimized blue-phase liquid crystal for field-sequential-color displays

“…This approach is proven to be quite effective. Several groups have fabricated such structures [3,4,14], especially in 2015 AUO demonstrated such protrusion electrodes in a 10" BPLC prototype [4]. The peak transmittance is over 75%, but the operation voltage is 32 V so that two TFTs per pixel are required.…”

“…Polymer-stabilized blue phase liquid crystal (PS-BPLC) [1] exhibits several attractive features for display and photonic applications, such as sub-millisecond response time, no need for surface alignment, optically isotropic dark state, and insensitive to the cell gap if an in-plane switching (IPS) cell is employed [2]. However, after ~15 years of extensive efforts, BPLC still remains at the prototype stage [3,4]. The major hurdles are twofold: 1) high operation voltage (Vp) and 2) slow capacitor charging for active matrix addressing.…”

Blue-phase liquid crystal display with high dielectric material

“…[9] In order to reduce the operating voltage, a variety of methods have been proposed. For instance, wall-shaped electrodes [14,15] and other protrusion electrodes [1,[16][17][18][19] have been proposed to reduce the operating voltage, but these devices cannot be widely developed and applied because the electrodes need very complex fabricating processes and have many defects in manufacture. For instance, vertical-field switching BPLCD has the low operating voltage when the oblique incident angle of light is large enough [20][21][22], but it needs complex backlight system which is consist of a light guide plate and a specially designed prism film for wide viewing angle.…”