LSL0201I12-S-V1: 2.01-Inch IPS TFT LCD Module, 240x296 Resolution, 262K Colors, 4-Line SPI Interface
Product Main Title:
LSL0201I12-S-V1: 2.01-Inch IPS TFT LCD Module, 240x296 Resolution, 262K Colors, 4-Line SPI Interface
Product Subtitle / Keywords:
2.01 Inch Display, 240x296 Resolution, Transmissive a-Si IPS TFT, 4-line SPI Interface, COG+FPC+B/L, 262K Colors, Wide Viewing Angle, JD9853 Driver, Industrial Reliability
Comprehensive Technical Specification & Application Guide
1. Executive Summary & Product Positioning
The LSL0201I12-S-V1, developed by LESSON (Wan'an) Zhixian Technology Co., Ltd., is a 2.01-inch transmissive amorphous Silicon TFT-LCD module featuring IPS (In-Plane Switching) technology. This product specification book defines its structure, display parameters, mechanical/electrical characteristics, pin functions, and optical performance. It delivers a resolution of 240(RGB)×296 with 262K-color display capability, driven by the JD9853 controller. The document provides complete technical basis for module design, production, and inspection, ensuring stable operation within specified temperature ranges and expected display effects. The recommendation is for development and quality control to strictly follow this specification for selection, driver adaptation, and reliability testing to guarantee product performance and compatibility.
2. Detailed Product Overview & Architecture
- Core Technology: Transmissive-type a-Si TFT-LCD (amorphous silicon thin film transistor liquid crystal display).
- Display Characteristics: Capable of displaying up to 262 thousand colors.
- Module Construction: Composed of a TFT-LCD panel, a driver circuit, and a backlight unit.
- Interface: 4-line SPI (Serial Peripheral Interface).
- Viewing Direction: IPS (wide viewing angle).
- Drive IC: JD9853.
- Panel Size: 2.01 inch diagonal.
3. Exhaustive Technical Specifications
3.1 Mechanical & Physical Specifications
| Item | Specification | Unit |
|---|---|---|
| Module size (H×V×D) | 36.29 × 44.64 × 2.88 | mm |
| Active area (H×V) | 32.04 × 39.516 | mm |
| Number of dots / Resolution | 240(RGB) × 296 | pixel |
| Panel Size (Diagonal) | 2.01 | inch |
3.2 Electrical & Interface Specifications
3.2.1 Absolute Maximum Ratings
| 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 |
3.2.2 Electrical Characteristics (DC)
| Item | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Supply voltage (Main) | VCC | 2.6 | 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 |
(Note: IOVCC value is referenced but not explicitly defined in the DC table; it is typically tied to VCC or a separate 1.8V/3.3V rail.)
3.2.3 Pin Description (15-pin FPC)
| 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 | This pin is used to be 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 | This signal will reset the device and 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. |
3.2.4 SPI Interface Timing Characteristics (4-line SPI)
Conditions: Not fully specified in excerpt, but typical for such interfaces.
| Signal | Symbol | Parameter | Min. | Max. | Unit | Description |
|---|---|---|---|---|---|---|
| CSX | t_css | Chip select setup time (Write) | 15 | -- | ns | |
| CSX | t_csh | Chip select hold time (Write) | 15 | -- | ns | |
| CSX | t_css | Chip select setup time (Read) | 60 | -- | ns | |
| CSX | t_csh | Chip select hold time (Read) | 65 | -- | ns | |
| DCX | t_as | Address setup time | 10 | -- | ns | |
| DCX | t_ah | Address hold time (Write/Read) | 10 | -- | ns | |
| SCL (write) | t_wc | Write cycle | 16 | -- | ns | |
| SCL (write) | t_wrh | Control pulse "H" duration | 7 | -- | ns | |
| SCL (write) | t_wrl | Control pulse "L" duration | 7 | -- | ns | |
| SCL (read) | t_rc | Read cycle | 150 | -- | ns | |
| SCL (read) | t_rdh | Control pulse "H" duration | 60 | -- | ns | |
| SCL (read) | t_rdl | Control pulse "L" duration | 60 | -- | ns | |
| SDI/SDO (write) | t_ds | Data setup time | 7 | -- | ns | |
| SDI/SDO (write) | t_dh | Data hold time | 7 | -- | ns | |
| SDI/SDO (read) | t_acc | Read access time | 20 | -- | ns |
3.2.5 Reset Timing
| RESX Pulse Width | Action |
|---|---|
| Shorter than 5 µs | Reset Rejected |
| Longer than 10 µs | Reset |
| Between 5 µs and 10 µs | Reset Start |
3.2.6 Backlight Unit
- Drive Condition (from optical table): Forward Current (I_F) = 80 mA.
- (Note: LED configuration (series/parallel) and Vf are not specified in the provided excerpt.)
3.3 Optical & Electro-Optical Characteristics
| 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) | W x | θx = θy = 0 | -- | 0.311 | -- | -- | CIE1931 |
| Color Chromaticity (White) | W y | θx = θy = 0 | -- | 0.334 | -- | -- | CIE1931 |
| Viewing Angle (CR>10) | θT, θB, θL, θR | -- | 80 | 85 | -- | Deg. | Note 3 |
| Luminance | L | I_F = 80mA | -- | 400 | -- | cd/m² | Note 4 |
Notes (interpreted):
- Response time is the sum of rise and fall time.
- Contrast ratio measured at panel center.
- Viewing angles are symmetrical (85° typical) due to IPS technology.
- Luminance measured at panel center with specified LED current.
4. Application Guidelines & Critical Notes
- Intended Use: Industrial HMIs, portable medical devices, handheld terminals, consumer gadgets—applications requiring a slightly taller 2-inch display with good brightness and wide viewing angles.
- Critical Design Considerations:
- SPI Interface: The host MCU's SPI peripheral must meet the defined timing parameters. Note the bidirectional SDA (pin 8) for read operations and the dedicated TE pin (pin 14) for frame synchronization.
- Power Supply: Provide a stable VCC between 2.6V and 3.3V (2.8V typical). Note the lower absolute maximum rating (3.6V max) compared to some other models.
- Reset Circuit: Ensure the RESET pin receives a low pulse longer than 10µs for reliable initialization.
- Backlight Drive: The backlight requires an 80mA constant-current driver. Determine the LED configuration (likely parallel or series-parallel) to design the appropriate voltage source.
- Temperature Limits: Operate within -10°C to +60°C and store within -20°C to +70°C. This is a slightly narrower range than some industrial-focused modules.
- Unused Pins: Pins 5, 6, and 7 are marked NC (No Connect) and should be left floating.
- Handling & Compliance: The module is ROHS compliant. Observe ESD precautions.
5. Conclusion & Design-In Support
The LSL0201I12-S-V1 specification outlines a 2.01-inch IPS display with a well-defined 4-line SPI interface. Its key strengths are the good luminance (400 cd/m²), wide 85-degree viewing angles, and complete set of AC timing parameters for the JD9853 driver, simplifying host controller software development. The main design focus is on meeting the SPI timing requirements, providing a stable ~2.8V power supply, and implementing an 80mA backlight driver. This module is a robust choice for applications needing a clear, bright display in a compact form factor with a standard microcontroller-friendly interface.
