We have developed "Transverse Bend Alignment (TBA) mode", an advanced VA mode where liquid crystal materials are driven by a combination of a lateral field and a vertical field. We have made TFT-LCDs with different spacings of comb-shaped electrodes to reduce the steepness of the V-T characteristics. By adjusting cell parameters, the LCD has wide viewing angle without color wash-out in oblique directions and fast response between all gray scale levels.
We have developed advanced Axially Symmetric Aligned Microcell Mode using negative dielectric liquid crystal (N-type ASM mode) first in the world. Using compe nsation film for this N-type ASM mode cell realizes the wide viewing angle of ± ±80°° in all azimuths, and high contrast ratio of 300:1. The structure of this N-type ASM mode panel is suitable for large-sized display panels. This mode is applicable for such active display panels as TFT and PALC 1) display , regardless of the difference of their drive systems. We consider that this N-type ASM mode becomes(N-type ASM mode) a key technology for the next-generation monitors.1.
Abstract— We have developed an advanced axially symmetric aligned microcell mode using negative‐dielectric liquid crystal (N‐type ASM mode), the first in the world. Using compensation film for this N‐type ASM mode cell realizes the wide viewing angle of ±,80° in all azimuths, and a high contrast ratio of 300:1. The structure of this N‐type ASM‐mode panel is suitable for large‐sized display panels. This mode is applicable for such active display panels as TFT and PALC1 displays, regardless of the difference of their drive systems. We consider that this N‐type ASM mode will be a key technology for next‐generation monitors.
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