1.77 Inch TFT LCD Display Module 128x160 SPI | YX17703A | Yousee DisplayYousee 1.77″ Mini TFT LCD Display Module – YX17703A
The YX17703A is a compact 1.77-inch a-Si TFT LCD display module featuring a 128×160 RGB resolution and positive transmissive structure.
Integrated with the ST7735S driver IC, it supports a 4-wire SPI interface, enabling simple and stable communication with MCUs.
This module adopts a TN panel with 12 o’clock viewing direction and white LED backlight, offering reliable optical performance and low power consumption.
Its small form factor makes it suitable for space-constrained embedded systems and portable devices.
Basic Specifications
| Display Size | 1.77 inch |
| LCD Type | a-Si TFT, Positive Transmissive |
| Resolution | 128 (RGB) × 160 |
| Display Colors | 262K |
| Viewing Direction | TN, 12 O’clock |
| Driver IC | ST7735S |
| Interface | SPI (4-wire) |
| Module Input Voltage | 2.8 V (Typ.) |
| Operating Temperature | -20°C to +70°C |
| Storage Temperature | -30°C to +80°C |
Mechanical Dimensions
Optical Characteristics (Typical)
| Luminance | 300 cd/m² (Typ.) |
| Contrast Ratio | 300 : 1 |
| Response Time | 30 – 60 ms |
| Color Gamut | 55% NTSC |
| Viewing Angle (CR ≥ 10) | Left 45° / Right 20° / Up 45° / Down 45° |
Electrical Characteristics
Analog Voltage (VCC): 2.5 – 4.8 V (Typ. 2.75 V)
Logic Voltage (IOVCC): 1.65 – 3.7 V (Typ. 1.8 V)
CMOS-compatible input/output levels