LSL0201I07-S-V1 | 2.01 inch TFT-LCD | 240x296 | SPI | IPS | COG+FPC+B/L+LENS
1. Executive Summary & Product Positioning
The LSL0201I07-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, and a backlight unit. The panel size is 2.01 inch and the resolution is 240(RGB)*296, the panel can display up to 262k colors.
Product Positioning: Designed for a wide range of compact applications requiring a portrait-oriented display with a simple SPI interface and excellent image quality. With its IPS (Free) viewing direction, high contrast ratio (1200 Typ), integrated LENS for full lamination, and 240(RGB)*296 resolution, it is ideally suited for smart wearables, smart home controls, medical equipment, and other portable devices.
2. Detailed Product Overview & Architecture
The module's architecture is designed for robust performance and straightforward integration. The primary components include:
- TFT-LCD Panel: 2.01-inch diagonal, a-Si TFT active matrix, transmissive, IPS display mode. The resolution is 240(RGB) × 296 pixels with an active area of 32.04 (H) × 39.516 (V) mm.
- Driver IC: The module uses the JD9853 driver IC.
- Backlight Unit (B/L): A white LED edge-lit backlight unit. The backlight configuration is 4 Chip-White LED Parallel. The driving condition is If=80mA, Vf=2.8V~3.2V(TYP) for the parallel LED string.
- Mechanical Construction: COG (Chip-on-Glass) + FPC + B/L + LENS (Cover Lens). The module outline dimensions are 42.0 (H) × 51.5 (V) × 3.38 (D) mm. The module includes a LENS for a \"fully laminated, one-dark effect\" appearance.
- Interface: The module communicates via a 15-pin FPC connector. The main display interface is SPI (4-line serial interface).
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 |
| Display Format | Graphic 240(RGB)×296 Dot-matrix |
| Module Construction | COG+FPC+B/L+LENS |
| Color Depth | 262K Colors |
| Viewing Direction (Grayscale Inversion) | Free (IPS) |
| Input Data Interface | SPI (4-line serial interface) |
| Driver IC | JD9853 |
| Number of Dots | 240(RGB) × 296 pixels |
| Active Area (H×V) | 32.04 × 39.516 mm |
| Module Size (H×V×D) | 42.0 × 51.5 × 3.38 mm |
| Operating Temperature | -10°C to +60°C |
| Storage Temperature | -20°C to +70°C |
3.2 Electrical Specifications
3.2.1 Absolute Maximum Ratings
| Parameter | Symbol | Min | Max | Unit |
|---|---|---|---|---|
| Supply Voltage (Logic) | VCC | -0.3 | 3.6 | V |
| Supply Voltage (IO) | IOVCC | -0.3 | 3.6 | V |
| Operating Temperature | TOPR | -10 | 60 | °C |
| Storage Temperature | TSTR | -20 | 70 | °C |
3.2.2 DC Characteristics (Ta=25°C)
| Parameter | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Supply Voltage (Logic) | VCC | 2.6 | 2.8 | 3.3 | V |
| Supply Voltage (IO) | IOVCC | 1.65 | 2.8 | 3.3 | V |
| Input Voltage (Low Level) | VIL | 0 | -- | 0.3*IOVCC | V |
| Input Voltage (High Level) | VIH | 0.7*IOVCC | -- | IOVCC | V |
3.2.3 Backlight LED Characteristics
The backlight uses a 4 Chip-White LED Parallel configuration. The driving condition is If=80mA, Vf=2.8V~3.2V(TYP).
3.3 Interface & Pin Map (15-Pin Connector)
The module uses a 15-pin connector. The pinout integrates the SPI interface, power supply, and backlight signals.
| Pin No. | Symbol | I/O | Description |
|---|---|---|---|
| 1 | GND | P | Ground |
| 2 | RS | I | Data/command selection pin in 4-line serial interface (DCX) |
| 3 | CS | I | Chip select input pin (Low active) |
| 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 (MOSI/MISO) |
| 9 | RESET | I | Chip reset signal (Low active, must be applied to properly initialize) |
| 10 | VCI | P | Power supply |
| 11 | VCI | 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 |
3.4 Optical Specifications
Optical characteristics are measured at θx = θy = 0°, Ta=25°C.
| Item | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Response Time (Tr+Tf) | Tr+Tf | - | 30 | 35 | ms |
| Contrast Ratio | CR | 800 | 1200 | - | - |
| Transmittance | T% | 4.8 | 5.33 | - | % |
| Color Chromaticity (White) - CIE1931 | Wx, Wy | - | 0.311, 0.334 | - | - |
| Viewing Angle (CR > 10) | θT, θB, θL, θR | 80 (All) | 85 (All) | - | Deg. |
3.5 Interface Timing Characteristics (4-line SPI)
The module supports 4-line SPI interface timing with the following key parameters (Test Condition: VCI=2.8V, IOVCC=1.8V, GND=0V, Ta=25°C):
3.5.1 SPI Write Cycle Timing
| Parameter | Symbol | Min | Max | Unit |
|---|---|---|---|---|
| Write Cycle | twc | 16 | - | ns |
| Control Pulse \"H\" duration (Write) | twrh | 7 | - | ns |
| Control Pulse \"L\" duration (Write) | twrl | 7 | - | ns |
| Data Setup Time (Write) | tds | 7 | - | ns |
| Data Hold Time (Write) | tdt | 7 | - | ns |
| Chip Select Setup Time (Write) | tcss | 15 | - | ns |
| Chip Select Hold Time (Write) | tcsh | 15 | - | ns |
3.5.2 SPI Read Cycle Timing
| Parameter | Symbol | Min | Max | Unit |
|---|---|---|---|---|
| Read Cycle | trc | 150 | - | ns |
| Access Time | tracc | - | 20 | ns |
| Output Disable Time | tod | - | 25 | ns |
| Chip Select Setup Time (Read) | tcss | 60 | - | ns |
| Chip Select Hold Time (Read) | tcsh | 65 | - | ns |
3.5.3 Reset Timing
| Parameter | Symbol | Min | Max | Unit |
|---|---|---|---|---|
| Reset pulse width | tRW | 10 | - | us |
| Reset complete time (Sleep In mode) | tRT | - | 5 | ms |
| Reset complete time (Sleep Out mode) | tRT | - | 120 | ms |
4. Application Guidelines & Critical Notes
When integrating the LSL0201I07-S-V1 module, engineers must adhere to the specific guidelines outlined in the specification to ensure optimal performance and reliability.
- Power Supply (Dual Rail): The module requires two supply rails: VCC (2.6V to 3.3V, Typ 2.8V) for the LCD logic and IOVCC (1.65V to 3.3V, Typ 2.8V) for the I/O interface. The I/O voltage level must match the host's logic level.
- 4-line SPI Interface: This is a standard 4-wire SPI interface. The control lines are CS (Chip Select, low active), SCL (Clock), SDA (Data), and RS (Data/Command select). The RESET pin must be toggled correctly after power-up to initialize the JD9853 driver IC.
- Backlight Driver (External): The module provides separate LED Anode (LEDA) and Cathode (LEDK) pins. An external constant current driver is required. The driving condition is 80mA total, with a typical forward voltage of 2.8V to 3.2V for the 4 parallel LED chips.
- Mechanical Integration: The module includes a LENS (cover glass) for a fully laminated, one-dark effect. The module outline dimensions are 42.0 × 51.5 × 3.38 mm. The active area is 32.04 × 39.516 mm. The specification notes critical mechanical guidelines such as: The enclosure viewing area should be 0.3mm smaller than the LENS VA per side, and the foam opening should be 0.6mm larger than the VA MDS per side.
- Handling Precautions: The module uses a glass LCD panel and LENS. Handle with care to avoid breakage. The surface of the polarizer and LENS must be protected from scratches. The TP edge cannot contact metal conductors. Silver paste points are present for ESD protection.
- RoHS Compliance: This module is designed to comply with RoHS directives.
- Reset Timing: The reset pulse must be at least 10μs wide. After releasing the reset, a waiting period of 5ms is required before sending any commands. If the reset is applied during Sleep Out mode, the display will blank for up to 120ms and the Sleep Out command cannot be sent during this period.
5. Conclusion & Design-In Support
The LSL0201I07-S-V1 from Lesson Smart Display Technology is a well-rounded, feature-rich 2.01-inch TFT-LCD module. Its combination of a simple SPI interface, wide viewing angle (IPS), integrated LENS for a premium look, and excellent contrast ratio makes it a highly suitable choice for a wide variety of embedded and portable applications.
For design-in support, it is strongly recommended to:
- Obtain and review the full Product Specification (Revision 1.0) for the complete set of electrical parameters, interface timing diagrams, mechanical drawings (including the outline dimension drawing), and the JD9853 driver IC datasheet.
- Design the power supply to provide both VCC and IOVCC rails. Design a constant current backlight driver (80mA at ~3.0V).
- Develop firmware using the standard 4-line SPI protocol for the JD9853 driver IC. Pay careful attention to the read and write timing parameters.
- Contact the manufacturer for evaluation kits, sample requests, and technical support during the design-in phase.
This module is engineered to deliver reliable, vibrant, and premium-quality display performance for a wide range of products.
