Viewing-angle controllable liquid crystal display (LCD) without using an additional panel or pixel division is proposed. In the device, hybrid aligned nematic liquid crystal using a liquid crystal with negative dielectric anisotropy is used. The device shows narrow viewing angle when it is driven only by fringe-electric field, however, it exhibits wide viewing angle if driven by vertical- as well as fringe-electric field. With the approach, the viewing angle of the LCD can be controlled from 120° to 20° in horizontal direction.

We introduce a novel type of Adobe RGB liquid crystal display (LCD) monitor with pixels composed of red (R), green (G), and blue (B) sub pixels, combined with a typical blue LED chip based white LED backlight. The key is to apply a newly developed deep green colorant to green sub pixel when the transmittance decrease of the LCD panels was minimized for product design. As a result, the new technology makes it possible to reproduce the Adobe RGB coverage of 99.9% as well as to realize slim LCD.