Liquid crystal display method with back light

Abstract

The liquid crystal display method with back light is characterized by that the back light source is closely-stuck and mounted under the liquid crystal screen, and the liquid crystal driving module solidified onto liquid crystal chip can be used for controlling COM part and SEG port of liquid crystal to implement pattern display, the driving module of back light source is driven by regulated supply or constant current source. Said invention adopts a combination mode of negative permeable blue liquid crystal display screen and white light-emitting diode back light source so as to make pattern of display bright and sharp and contrast of background and pattern strong clear.

Description

technical field [0001] The invention relates to liquid crystal display technology, in particular to a liquid crystal display method with backlight. Background technique [0002] At present, some household appliances or other devices use displays to display parameters such as temperature, time, and gear position. Liquid crystal displays are the most commonly used displays. Among them, LCD displays with backlight are widely used in Home appliances and communication products. The schematic diagram of the existing liquid crystal display method with backlight is as follows figure 1 As shown, the backlight is installed close to the bottom of the liquid crystal display; the liquid crystal drive module solidified to the liquid crystal chip controls the COM port and SEG port of the liquid crystal to realize pattern display, and the drive module of the backlight is selected according to the characteristics of the light source, and the LED emits light. The body is driven by a regulat...

AI Technical Summary

Problems solved by technology

However, since the negative transparent liquid crystal display pattern is transparent, the display pattern is very blurred without backlight

Images