2014年3月3日星期一

The principle and application of Character LCD Modules liquid crystal


The principle and application of graphic liquid crystal display module
With the intelligent instrument and the requirement of the display information is increasing, the digital display has been far from the mixed message is clear, graphics LCD module arises at the historic moment. Liquid crystal Tsingtek OLED Display display abundant information, low power consumption, small volume, light weight, ultra-thin, etc for many other monitors the incomparable advantages, is widely used in recent years for the single-chip microcomputer control of intelligent instruments, meters and low power consumption electronic products. The LCD can be divided into grade type LCD, character type LCD and dot-matrix LCD. Among them, the paragraph type LCD and character type LCD only for simple display characters and Numbers, cannot satisfy the requirement of graphical curve and Chinese characters display; And dot matrix LCD can custom lcd display not only characters, Numbers, and can also display a variety of graphics, curve and Chinese characters, and can realize the screen up and down or so scroll, animation, partition open window, inversion, the function such as flashing, application is very extensive. Liquid crystal I2C Lcd Display module (LCM) is by the controller, drive, drive, memory and LCD display device by PCB assembly into one of the low-cost output devices [1]. Its core component is the LCD controller, it is a programmable interface chips, on the one hand, to provide an interface with micro controller, drives, on the one hand, connect the line and row the user to the operation of the programming is the LCM LCD controller control. Different liquid crystal display module is mainly due to its own controller, makes the display function.

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