Liquid Crystal Display ( LCD )

Abstract A liquid crystal display (LCD) is a flat panel electronic visual display that uses a two‐dimensional array of liquid crystal (LC) cells, each of which can be electrically controlled to modulate the transmission of light for the display of digital images. Among all the electronic visual displays in the current world, LCD is taking the dominant position owing to its flat panel, light weight, low driving voltage, low power consumption, high resolution, large viewing angle, high color quality, and availability in a large range of screen size. In this chapter, we describe the basic device structure including various components, principle of operation, properties of LC materials, and various LCD modes of operation and their applications. We also point out some of the fundamental limitations of the LCDs.