LSL0165I04-S-V1 1.65 inch TFT-LCD Module 142x428 262K Colors
1. Executive Summary & Product Positioning
The LSL0165I04-S-V1 is a 1.65-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). The panel size is 1.65 inch and the resolution is 142(RGB)*428, the panel can display up to 262k colors. This module is a COG (Chip-on-Glass) + FPC + B/L (Backlight) + LENS construction. The product specification was first released on 2026-07-08.
Product Positioning: This 1.65-inch module is well-suited for a wide range of applications requiring a compact, high-quality display with a wide viewing angle and a simple SPI interface. It is ideal for wearable devices, handheld instruments, smart home controllers, and other embedded display systems.
2. Detailed Product Overview & Architecture
The module's architecture is designed for robust performance and easy integration. The primary components include:
- TFT-LCD Panel: 1.65-inch diagonal, a-Si TFT active matrix, transmissive, IPS (In-Plane Switching). Resolution is 142(RGB) × 428 pixels.
- Driver Circuit: The module integrates the NV3007A driver IC, communicating via an SPI (Serial Peripheral Interface).
- Backlight Unit (B/L): A white LED backlight with 3 Chip-White LEDs configured in parallel. The typical driving condition is IF=60mA, Vf=3V (TYP).
- Mechanical Construction: COG (Chip-on-Glass) + FPC + B/L + LENS. The LCM module size is 22.51×55.01×3.06 mm (H×V×D).
- Interface: The module communicates via an 8-pin FPC connector. The display interface is 4-Wire SPI (Serial Peripheral Interface).
- Display Mode: Transmissive, IPS.
- Viewing Direction (Grayscale Inversion): Free (IPS).
- RoHS: All materials are compliant with RoHS standards.
3. Exhaustive Technical Specifications
3.1 General & Mechanical Specifications
| Item | Specification |
| Display Size (Diagonal) | 1.65 inches |
| Resolution (Dots) | 142(RGB) × 428 |
| Display Technology | Active Matrix TFT, Transmissive, a-Si, IPS |
| Module Construction | COG+FPC+B/L+LENS |
| Color Depth | 262K Colors |
| Input Data Interface | SPI (4-Wire Serial) |
| Driver IC | NV3007A |
| Module Size (H×V×D) | 22.51 ×55.01×3.06 mm |
| Active Area (H×V) | 13.16×39.68 mm |
| Display Mode | Transmissive, IPS |
| Viewing Direction | Free (IPS) |
| Backlight Type | 3 Chip-White LEDs, Parallel |
| Operating Temperature | -20°C to +70°C |
| Storage Temperature | -30°C to +80°C |
| Environmental Compliance | RoHS |
3.2 Absolute Maximum Ratings
Stress beyond those listed may cause permanent damage to the device.
| Item | Symbol | Min | Max | Unit | Remark |
|---|---|---|---|---|---|
| Supply voltage | VCC | -0.3 | 4.6 | V | Note1 Note2 |
| Operating temperature | TOPR | -20 | 70 | °C | Note1 Note2 |
| Storage temperature | TSTR | -30 | 80 | °C | Note1 Note2 |
3.3 Electrical Characteristics
3.3.1 Recommended DC Characteristics
Condition: Ta=25°C.
| Item | Symbol | Min | Typ | Max | Unit | Remark |
|---|---|---|---|---|---|---|
| Supply voltage | VCC | 2.8 | 3.3 | 3.6 | V | Note1 |
| Input Voltage (L level) | VIL | 0 | --- | 0.3*IOVCC | V | Note1 |
| Input Voltage (H level) | VIH | 0.7*IOVCC | --- | IOVCC | V | Note1 |
3.3.2 Backlight LED Characteristics
The backlight consists of 3 Chip-White LEDs in parallel. The typical driving condition is IF=60mA, Vf=3V (TYP).
| Parameter | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Forward Voltage | Vf | - | 3 | - | V |
| Forward Current (Total) | IF | - | 60 | - | mA |
3.4 Interface Pin Assignment (8-Pin FPC)
The module communicates via an 8-pin FPC connector. The interface is a 4-Wire Serial SPI.
| PIN NO. | Symbol | I/O | Description |
|---|---|---|---|
| 1 | LEDA | P | Power for LED backlight anode |
| 2 | GND | P | Ground |
| 3 | RESET | I | This signal will reset the device and must be applied to properly initialize the chip. |
| 4 | RS | I | This pin is used to select "Data or Command" in 4-wire serial interface |
| 5 | SDA | I/O | Serial input signal in 4-wire quad serial data interface. |
| 6 | SCL | I | This pin is used serial interface clock in serial data interface. |
| 7 | VDD | P | power supply |
| 8 | CS | I | Chip select input pin ("Low" enable). |
3.5 Serial Interface Timing (4-line serial)
The module communicates via a 4-wire SPI interface. The timing parameters for this interface are as follows:
Condition: IOVCC = 3.3V, VCI=3.3V, GND=IGND=0V, Ta=25°C.
| Signal | Symbol | Parameter | MIN | MAX | Unit |
|---|---|---|---|---|---|
| CSX | TCSS | Chip select setup time (write) | TBD | - | ns |
| CSX | TCSH | Chip select hold time (write) | TBD | - | ns |
| CSX | TCHW | Chip select "H" pulse width | TBD | - | ns |
| SCL | TSCYCW | Serial clock cycle (Write) | TBD | - | ns |
| SCL | TSHW | SCL "H" pulse width (Write) | TBD | - | ns |
| SCL | TSLW | SCL "L" pulse width (Write) | TBD | - | ns |
| D/CX (RS) | TDCS | D/CX setup time | TBD | - | ns |
| SDA (DIN) | TSDS | Data setup time | TBD | - | ns |
Note: The manufacturer has marked the timing parameters as "TBD" (To Be Defined). For precise timing requirements, please refer to the full official datasheet or the NV3007A driver IC specification.
3.6 Electro-Optical Characteristics
Measuring Condition: Ta=25°C, dark room, 15min warm-up time.
| Item | Symbol | Condition | Min. | Typ. | Max. | Unit | Remark |
|---|---|---|---|---|---|---|---|
| Response time | Tr+Tf | θx = θy =0 | -- | 35 | 40 | ms | Note 1 |
| Contrast Ratio | CR | θx = θy =0 | 800 | 1000 | -- | - | Note 2 |
| Transmittance | T% | θx = θy =0 | -- | 3.5 | -- | % | - |
| Color Chromaticity (White) | W x | θx = θy =0 | -- | 0.303 | -- | - | - |
| Color Chromaticity (White) | W y | θx = θy =0 | -- | 0.337 | -- | - | - |
| Viewing angle (IPS) | θT, θB, θL, θR | CR > 10 | 80 | -- | -- | Deg. | Note 3 |
3.7 Design Notes from Documentation
- Mechanical Design Recommendations:
- Suggested housing visible area (shell opening) should be 0.3mm smaller than the VAmds (Viewing Area) on each side. (Note 7)
- Suggested housing foam opening should be 0.6mm larger than the VAmds on each side. (Note 8)
- The edge of the Touch Panel (TP) must not contact any metal conductor. (Note 9)
- B/L Driver: The backlight consists of 3 Chip-White LEDs in parallel. An external current source or current limiting resistor is required. The typical driving condition is IF=60mA, Vf=3V (TYP).
- Interface: The module uses a 4-wire SPI interface. The pinout includes a dedicated RS (Data/Command) pin.
- A LENS module: This module (LSL series) includes a LENS (cover glass) for protection and optical performance.
- ESD Protection: A yellow insulating tape (黄色绝缘胶纸) is used for insulation on the back. Silver paste (银浆点) is used for grounding.
- IPS Display: This module features IPS (In-Plane Switching) technology providing wide viewing angles (80 degrees in all four directions).
- RoHS: All materials are ROHS compliant.
- SPI Timing: The SPI timing parameters in the preliminary specification are marked as "TBD" (To Be Determined).
4. Application Guidelines & Critical Notes
- Power Supply: The module requires VDD (3.3V typical) power supply. Ensure the power supply is stable and has low ripple. The absolute maximum rating for VCC is 4.6V.
- Interface: This module uses a standard 4-wire SPI protocol. The host processor must be configured for this protocol.
- Backlight Driver (External): A simple constant current source or current limiting resistor can be used to supply the backlight via the LEDA (Pin 1) and GND (Pin 2) pins. The required driving condition is 60mA total current at 3V forward voltage.
- Reset: A hardware reset pin (RESET, Pin 3) is provided. Ensure proper reset timing as per the NV3007A datasheet.
- Mechanical Mounting: Follow the mechanical design notes for the enclosure and foam opening to ensure proper fit and avoid damage to the LENS and LCD.
- Operating Temperature: The module operates from -20°C to +70°C. Satisfactory display performance is only guaranteed within this range.
- Storage: Store the module in a clean environment, free from dust, moisture, and direct sunlight. Storage temperature range is -30°C to +80°C.
- Handling Precautions: Handle the module with care to avoid damage to the glass or FPC. Ground yourself to prevent electrostatic discharge (ESD). The yellow insulating tape on the back should not be removed during installation.
5. Conclusion & Design-In Support
The LSL0165I04-S-V1 from Lesson Smart Display Technology is a 1.65-inch IPS TFT-LCD module with a built-in LENS and a 4-wire SPI interface. It features a wide viewing angle (80° all directions), 1000:1 contrast ratio, and a robust mechanical design. It is a reliable, high-quality display solution suitable for a wide variety of embedded display applications.
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 (NV3007A) datasheet for detailed initialization and timing parameters.
- Design a clean 3.3V power supply for the LCD. Design a backlight constant current driver circuit capable of delivering 60mA at up to 3.3V.
- Configure the host processor's SPI interface to match the timing specifications detailed in this datasheet.
- Follow the mechanical design guidelines for the enclosure and foam opening to ensure proper fit and avoid damage.
- 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.
