Power-saving liquid crystal display and power-saving operation method thereof

Abstract

An electricity-saving LCD is composed of top base plate, bottom base plate, liquid crystal layer and signal generator. Its electricity-saving operation method includes providing a multi-level operating voltage signal to liquid crystal pixel unit when it is in the first steady state for controlling its light transmissitivity, and sending a switching signal from the signal generator to the pixel unit for switching it from the first steady state to the second one to make it have a fixed light transmissivity.

Description

technical field [0001] The invention relates to a display and its operation method, in particular to a power-saving liquid crystal display and its power-saving operation method. Background technique [0002] On portable electronic devices such as electronic watches, calculators, personal digital assistants (PDAs) and even mobile phones, liquid crystal displays (Liquid Crystal Display, LCD) are mostly used to complete the display devices, and the current display types can be roughly divided into It is a transmissive liquid crystal display, a reflective liquid crystal display and a transflective liquid crystal display. [0003] Please refer to FIG. 1, which is a schematic diagram of the structure of a reflective liquid crystal display, which mainly consists of a polarizer 10, a wide-band quarter wave plate 11 (wide-band quarter wave plate), a light-transmitting glass upper substrate 12, and a light-transmitting upper plate. The electrode 13, the liquid crystal layer 14, the r...

AI Technical Summary

Problems solved by technology

The commonly used technology usually utilizes a static random access memory (SRAM) structure built into the pixels of the LCD to make the LCD display the fixed picture. However, in this state, the upper and lower substrates on both sides of the LCD still need to continuously receive an AC. Signal (AC Signal) can make the liquid crystal operate normally. Therefore, in the common technical framework using static random access memory, it is still necessary to continuously provide an AC signal to the upper and lower substrates of the liquid crystal to make the liquid crystal work normally. For liquid crystal displays, continuous Supplying the AC signal to the upper and lower substrates of the LCD will still consume power, but the frequency of the AC signal can be slightly reduced in the hold mode to save some power, but it still cannot achieve the effect of completely saving power, so how to make the LCD display in Can not consume power completely when displaying a fixed picture in idle state, is the main purpose of developing the present invention

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