Interpretation of Chinese characters LCD 12864A-Lihuang monochrome screen

First, the principle of Chinese characters LCD 12864

 There are 12864 LCD module with font library, there is also no font library, which is a graphic dot matrix LCD display, which consists of controller T6963C, line driver / column driver and 128 × 64 full-frame dot matrix LCD display. Can be completed. Commonly used characters and graphics display, can also display 8 × 4 (16 × 16 dot matrix) Chinese characters.

128X64 is a 4 bit/8 bit parallel, 2-wire or 3-wire serial multiple interface mode. It contains dot-matrix graphic liquid crystal display module of national standard grade one and two simplified Chinese character library; its display resolution 128x64, built 8192 16*16 points Chinese characters, and 128 16*8 points ASCII character sets use this module's flexible interface method and simple and convenient operation instructions to form a full Chinese human-computer interaction graphical interface. Can display 8 × 4 lines of 16 × 16 dot matrix Chinese characters can also complete the graphic display low voltage and low power consumption is another significant feature of the liquid crystal display program consisting of the module compared with the same type of graphics dot matrix LCD display module, Regardless of the hardware circuit structure or display program should be much more concise, and the module's price is also slightly lower than the same dot matrix graphics LCD module.

Second, the basic characteristics of LCD 12864A

 (1) Low power supply voltage (VDD: +3.0--+5.5V), (2), Display resolution: 128×64 points, (3), Built-in Chinese characters 8 16×16 dot matrix Chinese characters (Simplified and Traditional Chinese characters) Optional), (4), Built-in 128 16 × 8 dot matrix characters, (5), External dimensions 78*70*11.9, (6), Sight size, (7), Display area 56.27*38.35, (8 ), controller T6963C, (9), interface mode parallel port (6), display mode: STN, semi-transparent, positive display, (10), drive mode: 1/32DUTY, 1/5BIAS, (11), direction of view: 6 o'clock, (12), Backlight mode: Side highlighted white LED, power consumption is 1/5 to 1/10 of common LED, (13), communication method: serial, parallel port optional, (14), Built-in DC-DC conversion circuit, no need for external negative voltage, (15), no chip select signal, simplified software design (16), operating temperature: -20°C ̴ 70°C (17), voltage 5V