LSC0128I08-S-V1: 1.28-inch Round LCD Module, 240×240, 4-Line SPI, 262K Colors, IPS/Free Viewing, COG+FPC+B/L+CTP, ST77912 Driver IC
Product Subtitle / Keywords
1.28 Inch Display, 240×240 Resolution, Transmissive a-Si TFT-LCD Module, COG+FPC+B/L+CTP Module Type, 4-Line Serial SPI Interface, 262K Colors, IPS/Free Viewing Angle, Driver IC: ST77912, Operating Temp: -10°C ~ 60°C, Storage Temp: -20°C ~ 70°C, 2 Chip White LED Backlight (If=40mA; Vf=3.0~3.4V), RoHS Compliant
1. Executive Summary And Product Positioning
The LSC0128I08-S-V1 is a 1.28-inch transmissive type a-Si TFT-LCD (amorphous silicon thin film transistor liquid crystal display) module.
This product specification (Revision 1.0) serves as the definitive technical document. It is composed of a TFT-LCD panel, a driver circuit, a backlight unit, and includes a capacitive touch panel (CTP). The panel has a resolution of 240(RGB)*240 and can display up to 262k colors.
The unequivocal recommendation for engineers is to strictly adhere to the absolute maximum ratings, electrical specifications, and interface timing described herein to ensure reliable performance and compatibility.
2. Detailed Product Overview And Architecture
- Core Technology: Transmissive type a-Si TFT-LCD (amorphous silicon thin film transistor liquid crystal display) module.
- Module Type: COG (Chip-On-Glass) + FPC (Flexible Printed Circuit) + B/L (Backlight) + CTP (Capacitive Touch Panel).
- Display Format: Graphic 240(RGB) × 240 pixel array. Dot arrangement is 240RGB(H)*240(V) Dots.
- Display Characteristics: Capable of displaying up to 262k colors.
- Interface Type: 4-line Serial SPI interface.
- Backlight Unit: 2 CHIP WHITE LED (If=40mA; Vf=3.0~3.4V).
- Special Features: Free (IPS) optimum viewing angle, High resolution for its size (1.28-inch), Compact design, RoHS compliant.
- Approval Status: Approved Product Specification only (Revision 1.0).
3. Exhaustive Technical Specifications
3.1 Mechanical & General Specification
| Parameter | Specification | Unit |
|---|---|---|
| Panel Size | 1.28'' (Diagonal) | Inch |
| Resolution | 240(RGB)*240 | Dots |
| Display Type | Transmissive | - |
| Display Colors | 262K | colors |
| Optimum Viewing Angle | Free (IPS) | - |
| Module Type | COG+FPC+B/L+CTP | - |
| Main LCD Driver IC | ST77912 | - |
3.2 Absolute Maximum Ratings
| Item | Symbol | Min | Max | Unit | Remark |
|---|---|---|---|---|---|
| Supply voltage | VCC | -0.3 | 4.6 | V | Note1 Note2 |
| Supply voltage | IOVCC | -0.3 | 4.6 | V | Note1 Note2 |
| Operating temperature | TOPR | -10 | 60 | °C | Note1 Note2 |
| Storage temperature | TSTR | -20 | 70 | °C | Note1 Note2 |
3.3 Electrical Characteristics
| Item | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Supply voltage | VCC | 2.65 | 2.8 | 3.3 | V |
| Supply voltage | IOVCC | 1.65 | 1.8 | 3.3 | V |
| Input Voltage (L level) | VIL | 0 | - | 0.3*IOVCC | V |
| Input Voltage (H level) | VIH | 0.7*IOVCC | - | IOVCC | V |
3.4 Electro-Optical Characteristics
| Item | Symbol | Condition | Min. | Typ. | Max. | Unit |
|---|---|---|---|---|---|---|
| Response time | Tr + Tf | θx = θy =0 | - | 30 | 40 | ms |
| Contrast Ratio | CR | θx = θy =0 | 600 | 800 | - | - |
| Transmittance | T% | θx = θy =0 | 3.0 | 3.8 | - | % |
| Viewing angle | θT, θB, θL, θR | CR > 10 | 80 | - | - | Deg. |
| Color Chromaticity (White) | W x, W y | θx = θy =0 | - | TBD | - | - |
3.5 Interface Connection (15-Pin SPI Interface)
| PIN NO. | Symbol | Function |
|---|---|---|
| 1 | TP-SCL | TP I2C Clock |
| 2 | TP-SDA | TP I2C Data |
| 3 | TP-INT | TP Interrupt |
| 4 | TP-RST | TP Reset |
| 5 | GND | Ground |
| 6 | TP-VCI | TP Power Supply |
| 7 | SDA | LCD Serial Data (SPI) |
| 8 | SCL | LCD Serial Clock (SPI) |
| 9 | RESET | LCD Reset |
| 10 | CS | LCD Chip Select |
| 11 | VDD | LCD I/O Power Supply (IOVCC) |
| 12 | GND | Ground |
| 13 | NC | Not Connect |
| 14 | LEDA | Backlight Anode (+) |
| 15 | LEDK | Backlight Cathode (-) |
4. Application Scenario
The LSC0128I08-S-V1 is a small, high-resolution display with an integrated touch panel, making it ideal for embedded systems requiring a compact, interactive display. Its 1.28-inch size and round or square form factor (from dimensions) are well-suited for smart wearables (like smartwatches), IoT devices, handheld instruments, and other small-scale Human-Machine Interface (HMI) applications. The free viewing angle and 262K color capability ensure clear and vibrant visuals from any direction.
5. Handling Precautions And Compliance
The LCD panel is made of glass and is fragile. The polarizer surface is easily scratched. The module should be handled with care to avoid applying pressure on the display area. ESD (Electrostatic Discharge) protection is mandatory throughout handling and assembly. The module should be stored in a clean, dry environment away from direct sunlight and corrosive gases. It is strongly recommended to read the full specification document (LSC0128I08-S-V1 Product Specification Revision 1.0) before integration and to test the module under application-specific conditions. The manufacturer disclaims liability for damages resulting from improper use or modification. The product is RoHS compliant.
