Definition of LCD

Liquid crystal display (LCD) is a device for indicating information using the state change of liquid that has the intermediate characteristics of liquid and solid.

ㆍLiquid crystal was discovered to have a characteristic of changing the state according to the temperature and changing the arrangement according to the number of electric fields.

ㆍWhen poles are arranged by number or letter and power is supplied, the molecular arrangement of the liquid crystal of poles is changed to display the number or letter in color.

1. Structure of the LCD Module

2. Mechanism of LCD

ㆍThe LCD displays information by controlling the molecular arrangement of the liquid crystal layer between polarizing filters in order to control the amount of light that passes through.

ㆍBetween two polarizing filters, the liquid crystal is twisted from the bottom to the top in a manner that most molecules are in a perpendicular position.

ㆍWhen current flows through the liquid crystal, all molecules are arranged in the same way, so the backlight emits light through the liquid crystal and the polarizing filter.

ㆍThe LCD screen is formed by controlling the information to express.

3. Module Process