LSL0201I12-S-V1 2.01 inch TFT-LCD Module 240x296 262k Colors IPS
1. Executive Summary & Product Positioning
The LSL0201I12-S-V1 is a 2.01-inch transmissive type a-Si TFT-LCD (amorphous silicon thin film transistor liquid crystal display) module developed by 立信(万安)智显科技有限公司 (Lesson Smart Display Technology Co., Ltd). It is composed of a TFT-LCD panel, a driver circuit, a backlight unit, and a LENS (cover glass). The panel size is 2.01 inch and the resolution is 240(RGB)*296, the panel can display up to 262k colors.
Product Positioning: This module features a 2.01-inch IPS (In-Plane Switching) panel with a LENS for enhanced durability and a full-screen design. With a standard SPI (4-Line Serial) interface, it is well-suited for a wide range of applications such as smart home devices, wearable devices, and other embedded systems requiring a compact, rugged, and reliable display solution.
2. Detailed Product Overview & Architecture
The module's architecture is designed for robust performance and easy integration. The primary components include:
- TFT-LCD Panel: 2.01-inch diagonal, a-Si TFT active matrix, transmissive, IPS. Resolution is 240(RGB) × 296 pixels. Active area is 32.04 (H) × 39.516 (V) mm.
- Driver Circuit: The module integrates a Driver IC (JD9853), communicating via an SPI (4-Line Serial) Interface.
- Backlight Unit (B/L): A white LED backlight with 4 Chip-White LEDs configured in parallel. The typical driving condition is IF=80mA, Vf=3.2V.
- Mechanical Construction: COG (Chip-on-Glass) + FPC (with PI reinforcement) + B/L + LENS. The total module dimensions are 36.29 × 44.64 × 2.88 mm.
- Interface: The module communicates via a 15-pin FPC connector. The display interface is 4-Line SPI (Serial Interface).
- Display Mode: Active matrix TFT, Transmissive type, IPS.
- Viewing Direction (Grayscale Inversion): All o'clock (IPS).
- RoHS: All materials are compliant with RoHS standards.
3. Exhaustive Technical Specifications
3.1 General & Mechanical Specifications
| Item | Specification |
| Display Size (Diagonal) | 2.01 inches |
| Resolution (Dots) | 240(RGB) × 296 |
| Display Technology | Active Matrix TFT, Transmissive, a-Si, IPS |
| Module Construction | COG+FPC+B/L+LENS |
| Color Depth | 262K Colors |
| Viewing Direction | All o'clock (IPS) |
| Input Data Interface | SPI (4-Line Serial) |
| Driver IC | JD9853 |
| Module Size (H×V×D) | 36.29 × 44.64 × 2.88 mm |
| Active Area (AA, H×V) | 32.04 × 39.516 mm |
| Pixel Arrangement | RGB Dot-matrix (240(RGB)×296) |
| Display Mode | Active matrix TFT, Transmissive type |
| Backlight Type | 4 Chip-White LED, Parallel |
| Operating Temperature | -10°C to +60°C |
| Storage Temperature | -20°C to +70°C |
| Environmental Compliance | RoHS |
3.2 Absolute Maximum Ratings
Stress beyond those listed may cause permanent damage.
| Item | Symbol | Min | Max | Unit | Remark |
|---|---|---|---|---|---|
| Supply voltage | VCC | -0.3 | 3.6 | V | Note1 Note2 |
| Operating temperature | TOPR | -10 | 60 | °C | Note1 Note2 |
| Storage temperature | TSTR | -20 | 70 | °C | Note1 Note2 |
3.3 Electrical Characteristics
3.3.1 Recommended Operating Conditions
| Item | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Supply voltage | VCC | 2.6 | 2.8 | 3.3 | V |
| Input Voltage "L" level | VIL | 0 | --- | 0.3*IOVCC | V |
| Input Voltage "H" level | VIH | 0.7*IOVCC | --- | IOVCC | V |
3.3.2 Backlight LED Characteristics
The backlight consists of 4 Chip-White LEDs in Parallel. The backlight drive condition is IF=80mA, Vf=3.2V (TYP).
| Parameter | Symbol | Typ | Unit |
|---|---|---|---|
| Forward Voltage | Vf | 3.2 | V |
| Forward Current | IF | 80 | mA |
3.4 Electro-Optical Characteristics
Condition: Ta=25°C, viewing angle at center point, θx=θy=0.
| Item | Symbol | Condition | Min. | Typ. | Max. | Unit | Remark |
|---|---|---|---|---|---|---|---|
| Response time | Tr+Tf | θx=θy=0 | -- | 30 | 35 | ms | Note 1 |
| Contrast Ratio | CR | θx=θy=0 | 800 | 1200 | -- | Note 2 | |
| Transmittance | T% | θx=θy=0 | 4.8 | 5.33 | -- | % | |
| Color Chromaticity (White) | Wx, Wy | θx=θy=0 | 0.311, 0.334 | -- | -- | CIE1931 | |
| Viewing angle (all directions) | θT, θB, θL, θR | CR>10 | 80 | 85 | -- | Deg. | Note 3 |
| Luminance (IF=80mA) | L | -- | 400 | -- | cd/m² | Note 4 |
3.5 Interface Pin Assignment (15-Pin FPC)
Connector: 15-pin FPC. Interface: 4-Line SPI (Serial Interface).
| PIN NO. | Symbol | I/O | Description |
|---|---|---|---|
| 1 | GND | P | Ground |
| 2 | RS | I | Data/command selection pin in 4-line serial interface |
| 3 | CS | I | Chip select input pin |
| 4 | SCL | I | Serial interface clock |
| 5 | NC | -- | No connection |
| 6 | NC | -- | No connection |
| 7 | NC | -- | No connection |
| 8 | SDA | I/O | Serial in/out signal in SPI interface |
| 9 | RESET | I | Reset signal, must be applied to properly initialize the chip |
| 10 | VCC | P | Power supply |
| 11 | VCC | P | Power supply |
| 12 | LEDA | P | Power for LED backlight anode |
| 13 | LEDK | P | Power for LED backlight cathode |
| 14 | TE | O | Tearing effect output pin to synchronize MPU to frame writing |
| 15 | GND | P | Ground |
3.6 Timing Characteristics
3.6.1 4-Line Serial Interface Characteristics
Key timing parameters for writing data via the SPI interface.
| Signal | Symbol | Parameter | MIN | MAX | Unit | Description |
|---|---|---|---|---|---|---|
| CSX | tcss (Write) | Chip select setup time (Write) | 15 | -- | ns | - |
| CSX | tcsh (Write) | Chip select hold time (Write) | 15 | -- | ns | - |
| CSX | tcss (Read) | Chip select setup time (Read) | 60 | -- | ns | - |
| CSX | tcsh (Read) | Chip select hold time (Read) | 65 | -- | ns | - |
| DCX | tas | Address setup time | 10 | -- | ns | - |
| DCX | tah | Address hold time (Write/Read) | 10 | -- | ns | - |
| SCL (write) | twc | Write cycle | 16 | -- | ns | - |
| SCL (write) | twrh | Control pulse "H" duration | 7 | -- | ns | - |
| SCL (write) | twrl | Control pulse "L" duration | 7 | -- | ns | - |
| SCL (read) | trc | Read cycle | 150 | -- | ns | - |
| SCL (read) | trdh | Control pulse "H" duration (Read) | 60 | -- | ns | - |
| SDI (write) | tds | Data setup time | 7 | -- | ns | - |
| SDI (write) | tdt | Data hold time | 7 | -- | ns | - |
| SDO (read) | tracc | Read access time | -- | 20 | ns | - |
3.6.2 Reset Input Timing
| Symbol | Parameter | Related Pins | Min. | Max. | Unit |
|---|---|---|---|---|---|
| $t_{RW}$ | Reset pulse width | RESX | 10 | - | µs |
| $t_{RT}$ | Reset complete time | - | - | 5 (Note 5) | ms |
| $t_{RT}$ | Reset complete time | - | - | 120 (Note 6,7) | ms |
3.7 Design Notes from Documentation
- B/L Driver: The backlight driving condition is IF=80mA, Vf=3.2V for 4 parallel LEDs.
- Mechanical: Tolerance of segments to edge of glass: ±0.2mm. The FPC includes PI reinforcement. Yellow insulating tape is used for protection.
- Housing: It is recommended that the housing visual area be at least 0.3mm smaller than the VA (Viewing Area) on each side. The housing foam window should be at least 0.6mm larger than the VA on each side. TP edge should not contact metal conductors to avoid ESD or short circuit risks.
- RoHS: All materials must comply with RoHS standards.
4. Application Guidelines & Critical Notes
- Power Supply: The module requires a 2.8V (Typ.) power supply for VCC. Ensure the power supply ripple is minimized.
- Interface: This module uses a standard 4-Line SPI (Serial Interface) protocol. The host microcontroller must be configured for this protocol, managing signals such as CS, RS, SCL, and SDA.
- Backlight Driver (External): An external constant current driver is required to supply the backlight via the LEDA and LEDK pins.
- Reset: A hardware reset pin (RESET, Pin 8) is provided. It must be applied to properly initialize the chip. The reset pulse must be longer than 10 µs to be valid.
- Handling Precautions: Handle the module with care to avoid damage to the glass, FPC, or LENS. Ground yourself to prevent electrostatic discharge (ESD).
- Initialization: After releasing RESET, it is necessary to wait 5ms before sending commands. Also, the Sleep Out command cannot be sent for 120ms after reset.
5. Conclusion & Design-In Support
The LSL0201I12-S-V1 from Lesson Smart Display Technology is a 2.01-inch IPS TFT-LCD module with a LENS. It is a compact, reliable display solution suitable for a wide variety of embedded display applications such as smart wearables, industrial HMI, and smart home devices.
For successful design-in, engineers should:
- Obtain and review the complete, official Product Specification (Revision 1.0) for the full mechanical drawing and the driver IC (JD9853) datasheet for detailed command initialization.
- Design a clean 2.8V power supply and a backlight constant current driver circuit (80mA, 3.2V).
- Configure the host MCU's SPI interface to match the timing specifications detailed in this datasheet.
- Contact the manufacturer for evaluation modules, sample requests, and further technical support during the design-in phase.
This module is designed to provide a reliable and vibrant display solution for a wide array of applications.
