128x128 COG display character module
LCD module 128×128 COG display character module, the driver IC is ST7571, and adopts 4-wire SPI serial port. power consumption less than 100mW.
Download 128x128 COG Display Character Module technical documents
Customize the length, width and thickness of FPC or cable, adjust the pin arrangement according to the interface type, and select the appropriate connector. Make your display or circuit board simple and safe with an excellent FPC solution.
A touch screen can be added according to your requirements, there are three options: resistive touch screen, capacitive touch screen, infrared touch screen. Or add protective glass as needed
Display screens with different optical parameters can be designed according to needs, such as brightness, color gamut, response time, gamma and other parameters, and anti-glare, anti-fingerprint coatings, etc. can also be added
The circuit board we designed can convert the interface of your display into an HDMI interface. If your product does not have any display control capabilities, you can use our serial display and only need to use simple commands to control the displayed content through RS232/458
128x128 COG display character module drawings and interfaces
The driver IC of the 128×128 COG display character module is ST7571, which supports 4-wire SPI serial port. The backlight uses two LED lamp beads connected in parallel, the working voltage is 3V, the working current is 30mA, and the power consumption of the module is less than 100mW. Working temperature: -20°C – 70°C, storage temperature: -30°C – 80°C, the module has high reliability.
The outline drawing is as follows:
Interfaces are defined as follows：
| NO. | Symbol | Detail |
| 1 | CS | Chip Select |
| 2 | RST | Low level reset, after the reset is completed, return to high level, the LCD module starts to work |
| 3 | RS | H: data register 0: instruction register |
| 4 | SCLK | serial clock |
| 5 | SDA | serial data |
| 6 | VDD | Positive pole of power supply |
| 7 | VSS | Ground |
| 8 | VM0 | bias voltage |
| 9 | V0 | bias voltage |
| 10 | XV0 | bias voltage |
| 11 | VD | bias voltage |
| 12 | VG | bias voltage |
| 13 | LEDK | Backlight power supply |
| 14 | LEDA | Backlight power supply |
