Serial Interface Chinese dot matrix Character LCD Modules module applications

Liquid crystal graphic lcd display module  device having a display as information-rich, low power consumption, small size, small, no radiation, etc., are widely used; but the LCD display module complex hardware interface and software programming has forced product designers intimidating, and thus The module limits in certain areas of application.

Features
OCM4X8C is a serial / parallel interface with internal containing Chinese character dot matrix LCD modules. The module's control / driver adopts Taiwan Sitronix company ST7920, which has a strong control display. OCM4X8C LCD display is 128 × 64 dot matrix, can display 4 lines of 8 characters. In order to facilitate a simple and convenient way to display Chinese characters, the module with 2Mb of Chinese fonts CGROM, the font ROM contains 8192 16 × 16 dot matrix Chinese font; Meanwhile, in order to facilitate the English and other commonly used characters display, with 16Kb of 16 × 8 dot matrix ASCII character library; to facilitate construction of graphical user provides a 64 × 256 lattice GDRAM drawing area, and in order to facilitate construction of fonts required by the user, provides four 16 × 16 dot matrix made word space. With the above features, OCM4X8C can be realized characters, ASCII code, bitmap graphics, self-made fonts with the screen display. For ease up and a variety of microprocessor, microcontroller interface module provides four parallel 8-bit parallel, two-wire serial, three-wire serial interface to a variety of ways.
The module has a 2.7 ~ 5.5V wide operating voltage range, and has a sleep, normal, and low-power mode, the system can meet a variety of operating voltage and low power requirements portable devices. LCD module shows a negative voltage is also provided by the module, thus simplifying the system power supply design. Module also provides LED backlight display. In addition, the module also provides a clear picture, the cursor display / hide the cursor, display on / off, display character blink, cursor shift, display shift, vertical screen rotation, highlight display, serial 20x2 lcd Sleep / Wake , turn off the display and other operations command.