Dot-matrix graphic LCD module

This module is a module matrix, which matrix is ​​characterized by continuous pixels arranged in rows and columns are not arranged in an empty compartment. So you can show a continuous, full graphics. Since it is also a XY matrix pixel composition, so in addition to display graphics, but also can display characters.

1 row, column-driven
This is a dedicated controller to the external module, which module is only fitted with a common row, column drivers, which drive the pixel is actually only a general drive output terminal, and the input terminal to only four data input of the following , shift signal input terminal, the latch input terminal, the AC signal input terminal, etc., such as HD44100, IID66100 so on. Such modules must be an external control circuit, such as HD61830, SEDl330 etc. can connect with computer. The largest number of species of the module, the most common. Although the need to use self-made controller, but it also gives customers left a different controller can choose freely.

2 rows, columns driver - controlled
This is a direct interface with the computer, the computer directly controls the drive depend on the module. Such modules used in the column driver with I / O bus data interface module can be directly linked to the computer's bus, eliminating the need for dedicated controller, so the whole system cost reduction benefits. For the small number of pixels, the machine features small, for computer software programming and very familiar user very suitable. But it will take some of the resources on your system.

3 rows, columns, control type
This is a built-in controller type dot matrix graphics module. Also the more popular type. This module is equipped with not only the first category, such as row and column drivers, but also like the T6963C assembly of dedicated controller. This controller is a liquid crystal driver and a computer interface, which in the most simple way controlled by the computer, the computer receives a variety of information and feedback, through their independent information processing to achieve the display buffer management, well provided to the driver needs of the various signals, pulse, manipulate the lcm module of the drive to implement the module function. This controller has its own set of special instructions, and have their own character generator CGROM. Users must be familiar with the detailed specification of this controller can be summarized as. This module allows users to get rid of the controller design, processing, production and other series of work, and also allows the computer to avoid the cumbersome controls on the monitor, saving.