LSL050I26-MP-V1 5.0 inch TFT-LCD Module 720x1280 16.7M Colors IPS
1. Executive Summary & Product Positioning
The LSL050I26-MP-V1 is a 5.0-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 5.0 inch and the resolution is 720(RGB)*1280, the panel can display up to 16.7 M colors.
Product Positioning: This module features a 5.0-inch IPS panel, offering wide viewing angles (up to 80 degrees in all directions) and high contrast ratio. With a typical luminance of 500 cd/m² and a MIPI DSI interface, it is well-suited for a wide range of applications such as industrial HMI, smart home devices, medical equipment, and other embedded systems requiring a bright and high-quality medium-sized display.
2. Detailed Product Overview & Architecture
The module's architecture is designed for robust performance and easy integration. The primary components include:
- TFT-LCD Panel: 5.0-inch diagonal, a-Si TFT active matrix, transmissive, IPS mode. Resolution is 720(RGB) × 1280 pixels with an active area of 62.1 (H) × 110.4 (V) mm.
- Driver IC: The module uses the FL7703NI driver IC.
- Backlight Unit (B/L): A white LED backlight with 14-CHIP WHITE LEDs. The typical driving condition is IF=40mA and Vf=22.4V (Typ.).
- Mechanical Construction: COG (Chip-on-Glass) + FPC + B/L + LENS. The module outline dimensions are 70.06 (H) × 125.8 (V) × 2.89 (D) mm.
- Interface: The module communicates via an FPC connector. It supports a MIPI DSI interface for command and pixel data.
- Viewing Direction: IPS (All directions).
3. Exhaustive Technical Specifications
3.1 General & Mechanical Specifications
| Item | Specification |
| Display Size (Diagonal) | 5.0 inches |
| Resolution (Dots) | 720(RGB) × 1280 |
| Display Technology | Active Matrix TFT, Transmissive, a-Si, IPS |
| Module Construction | COG+FPC+B/L+LENS |
| Color Depth | 16.7M Colors |
| Viewing Direction | IPS (All Views) |
| Input Data Interface | MIPI DSI (4 Lanes) |
| Driver IC | FL7703NI |
| Module Size (H×V×D) | 70.06 × 125.8 × 2.89 mm |
| Active Area (H×V) | 62.1 × 110.4 mm |
| Display Mode | Transmissive, IPS, Normally Black |
| Operating Temperature | -20°C to +70°C |
| Storage Temperature | -30°C to +80°C |
3.2 Absolute Maximum Ratings
Stress beyond those listed may cause permanent damage.
| Parameter | Symbol | Min | Max | Unit |
|---|---|---|---|---|
| Supply voltage (VCC) | VCC | -0.3 | 6.6 | V |
| Supply voltage (IOVCC) | IOVCC | -0.3 | 5.5 | V |
| Operating temperature | TOPR | -20 | 70 | °C |
| Storage temperature | TSTR | -30 | 80 | °C |
3.3 Electrical Characteristics
3.3.1 Backlight LED Characteristics
The backlight consists of 14-CHIP WHITE LED (2 parallel strings of 7 series each, based on typical Vf of 22.4V). The backlight drive condition is VF=22.4V; If=20*2mA.
| Parameter | Symbol | Typ | Unit |
|---|---|---|---|
| Forward Voltage (Total) | VF | 22.4 | V |
| Forward Current | If | 40 (20*2) | mA |
3.4 Interface Pin Assignment
Interface: MIPI DSI (4 Lanes). Connector: FPC.
| PIN NO. | Symbol | I/O | Description |
|---|---|---|---|
| 1 | GND | P | Ground |
| 2 | D0P | I/O | MIPI DSI Data Lane 0 Positive signal |
| 3 | D0N | I/O | MIPI DSI Data Lane 0 Negative signal |
| 4 | GND | P | Ground |
| 5 | D1P | I | MIPI DSI Data Lane 1 Positive signal |
| 6 | D1N | I | MIPI DSI Data Lane 1 Negative signal |
| 7 | GND | P | Ground |
| 8 | CLKP | I | MIPI DSI Clock Lane Positive signal |
| 9 | CLKN | I | MIPI DSI Clock Lane Negative signal |
| 10 | GND | P | Ground |
| 11 | D2P | I | MIPI DSI Data Lane 2 Positive signal |
| 12 | D2N | I | MIPI DSI Data Lane 2 Negative signal |
| 13 | GND | P | Ground |
| 14 | D3P | I | MIPI DSI Data Lane 3 Positive signal |
| 15 | D3N | I | MIPI DSI Data Lane 3 Negative signal |
| 16, 17 | GND | P | Ground |
| 18, 19 | IOVCC | P | Power supply for I/O |
| 20, 22, 23, 26 | NC | -- | No connection |
| 21 | ID | O | ID pin |
| 24 | RESET | I | Reset pin (Active low) |
| 25 | TE | O | Serves TE (Tearing Effect) output pin |
Note: The pin description shows 4 data lanes (D0-D3) plus 1 clock lane (CLK), which corresponds to a 4-Lane MIPI DSI interface.
3.5 Timing Characteristics: Reset Input Timing
| Symbol | Parameter | Min. | Unit |
|---|---|---|---|
| tRESW | Reset low pulse width | 10 | μs |
| tREST | Reset complete time (during SLPIN mode) | 15 | ms |
| Reset complete time (during SLPOUT mode) | 120 | ms |
3.6 Electro-Optical Characteristics (Ta=25°C)
| Item | Symbol | Condition | Min. | Typ. | Max. | Unit | Remark |
|---|---|---|---|---|---|---|---|
| Response time | Tr + Tf | θx = θy =0 | -- | 25 | 35 | ms | Note 1 |
| Contrast Ratio | CR | θx = θy =0 | 900 | 1200 | -- | -- | Note 2 |
| Transmittance | T% | θx = θy =0 | 4.3 | 4.8 | -- | % | |
| Color Chromaticity (CIE1931) White | W x, W y | θx = θy =0 | -- | (0.309, 0.338) | -- | -- | |
| Viewing angle (All directions) | θT, θB, θL, θR | CR > 10 | 70 | 80 | -- | Deg. | Note 3 |
| Luminance (IF = 40mA) | L | -- | -- | 500 | -- | cd/m² | Note 4 |
3.7 Design Notes
- B/L Driver: The backlight driving condition is VF=22.4V; If=20*2mA (2 parallel strings, each 20mA).
- Mechanical: Tolerance of segments to edge of glass: ±0.3mm. The module includes a steel plate reinforcement and EMI treatment.
- Housing: General recommendations for housing clearance apply.
- Reset: During the resetting period, the display will be blanked (up to 120ms max in Sleep Out mode) and then return to default condition for H/W reset. During Reset Complete Time (15ms after NRESET rising edge), ID and VCOM values in OTP will be latched.
- RoHS: RoHS compliance is expected.
4. Application Guidelines & Critical Notes
- Power Supply: The module requires power supply voltages for VCC and IOVCC per absolute maximum ratings. Ensure the power supply ripple is minimized.
- Interface: This module uses a 4-Lane MIPI DSI interface. The host processor must have a MIPI DSI controller capable of driving this interface.
- Backlight Driver (External): An external constant current driver is required to supply a total current of 40mA at a forward voltage of 22.4V (Typ.). The circuit is configured as a 2-parallel LED string structure.
- Handling Precautions: Handle the module with care to avoid damage to the glass or FPC. Ground yourself to prevent electrostatic discharge (ESD).
5. Conclusion & Design-In Support
The LSL050I26-MP-V1 from Lesson Smart Display Technology is a 5.0-inch TFT-LCD module with an IPS panel and a high resolution of 720×1280. It is a bright, high-contrast solution suitable for a variety of industrial and embedded display applications requiring wide viewing angles and good color performance in a medium form factor.
For successful design-in, engineers should:
- Obtain and review the complete, official Product Specification (Revision 1.0) for the full mechanical drawing and the FL7703NI driver IC datasheet for detailed command initialization.
- Design a suitable power supply for VCC and IOVCC, and a backlight constant current driver circuit capable of delivering 40mA at 22.4V.
- 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.
