Electronic price tag display module with low power consumption

Abstract

The invention relates to an electronic price tag display module with low power consumption, wherein an LCD (Liquid Crystal Display) display screen is bound with two COG IC chips with the same model number to drive 240X128 lattice pixels; the two COG IC chips are connected with a PCB (Printed Circuit Board) circuit through metal pins, and the PCB circuit is connected with an external MCU (Microprogrammed Control Unit) control module through a FPC (Flexible Printed Circuit) connector. An LCD controller and an LCD drive are integrated in each COG IC chip for realizing long-time wide-temperature and ultralow power consumption display. The LCD display screen utilizes FSTN (Film Super Twisted Nematic) technology capable of realizing wide visual angle display. The LCD display screen can realize display of 10:30 visual angles. The electronic price tag display module disclosed by the invention has the following beneficial effects: the display module can work at a temperature range of 80 DEG G to subzero 30 DEG C, the two COG IC chips are used for realizing control and drive, the FSTN technology is used for realizing wide visual angle display, the power consumption is ultralow, the volume is small and the display module is convenient for installation.

Description

technical field [0001] The invention relates to an LCD liquid crystal display module, in particular to an electronic price tag display module with low power consumption. Background technique [0002] As the main display device, LCD screen is widely used in many fields such as national defense, industry, household, public facilities, etc. At present, the display requirements are getting higher and higher: as small as possible, wide operating temperature range, low power consumption, wide viewing angle Range, display various text. The traditional 160*2 medium-sized liquid crystal display adopts SMT structure, which requires controller IC, memory IC, driver IC, DC / DC power conversion circuit IC, bias circuit, temperature compensation circuit, large volume and complicated processing technology, especially The power consumption current is high, which cannot meet the low power consumption requirements and cannot realize wide viewing angle display. [0003] With the vigorous deve...

AI Technical Summary

Problems solved by technology

The traditional 160*2 medium-sized liquid crystal display adopts SMT structure, which requires controller IC, memory IC, driver IC, DC / DC power conversion circuit IC, bias circuit, temperature compensation circuit, large volume and complicated processing technology, especially High power consumption current cannot meet low power consumption requirements and cannot realize wide viewing angle display

[0003] With the vigorous development of the retail industry, there are more and more varieties of goods displayed on supermarket shelves, and various promotional activities have also made the price changes of goods more frequent. These have led to supermarkets spending a lot of energy on replacing and managing price labels. Inevitable errors make the price on the shelf label inconsistent with the price in the POS system. According to relevant surveys in the industry, the price error rate of general price tags is about 6%, and the label loss rate reaches 2%.

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