LS101I23-MP-V1: 10.1-Inch WUXGA IPS TFT LCD Module, 1200×1920 Resolution, 4L-MIPI Interface, 16.7M Colors
Product Subtitle / Keywords
10.1 Inch Display, 800(RGB)×1280 WUXGA Resolution, IPS Display, Transmissive TFT-LCD Module, COG+FPC+B/L Module Type, 16.7M Display Colors, 4L-MIPI Interface (4 Lane MIPI DSI), Supply Voltage VDD=3.3V (Typ), VCCIO=1.8V/3.3V (Note 1), Backlight Configuration 28 Chip White LED, Backlight Current Typ. 140mA (Total), Driver IC ILI9881C, Operating Temperature -10°C to +50°C, Storage Temperature -20°C to +60°C, Viewing Direction All (IPS), Active Area 135.36(H)×216.576(V) mm (Portrait), Lesson Smart Display Technology Co., Ltd.
1. Executive Summary & Product Positioning
The LS101I13-MP-V1, developed by Lesson Smart Display Technology Co., Ltd. (立信(万安)智显科技有限公司), is a transmissive type thin film transistor (TFT) IPS liquid crystal display (LCD) that uses amorphous silicon TFT as a switching device. It is composed of a TFT LCD panel, Driver IC, FPC and Backlight.
This product specification (Revision 1.0) serves as the definitive technical document, defining the module's general description (including 10.1-inch diagonal display with 800(RGB)×1280 resolution), physical features, outline dimension drawing, absolute maximum ratings (power supply voltages and temperature ranges), electrical characteristics (pin description for 30-pin MIPI connector, backlight characteristics, power on/off sequence), and electro-optical characteristics.
The document provides the core parameters necessary for system integration into standard 10.1-inch portrait-oriented display applications with a WUXGA resolution and MIPI DSI interface. The unequivocal recommendation for engineers is to strictly adhere to the electrical specifications (especially the power supply voltages VDD=3.3V with a tight tolerance, the backlight driving at 140mA total, and the critical power on/off sequence described in the spec) described herein to ensure reliable performance and compatibility.
2. Detailed Product Overview & Architecture
- Core Technology: Transmissive type thin film transistor (TFT) IPS liquid crystal display (LCD) that uses amorphous silicon TFT as a switching device. It is composed of a TFT LCD panel, Driver IC, FPC and Backlight.
- Display Resolution: WUXGA (in vertical/portrait orientation): 800(RGB)×1280 pixel array. (800 horizontal x 1280 vertical)
- Display Mode: IPS (In-Plane Switching) with Transmissive, providing wide viewing angles (ALL).
- Display Colors: This panel can display up to 16.7M colors.
- Module Construction: COG+FPC+B/L (Chip-On-Glass + Flexible Printed Circuit + Backlight).
- Interface Type: 4L-MIPI (4 Lane MIPI DSI) interface, using differential data pairs (MIPI_ON/OP, MIPI_1N/1P, MIPI_2N/2P, MIPI_3N/3P) and a differential clock pair (MIPI_CKN/CKP).
- Power Architecture: Requires two digital power supplies: VDD (3.3V) and VCCIO (1.8V or 3.3V, Note 1).
- Backlight: White LED backlight composed of 28 chips, driven by a constant current of 140mA (Typ) at 13.2V (Typ).
3. Exhaustive Technical Specifications
3.1 Mechanical & Physical Specifications
| Parameter | Specification | Unit |
|---|---|---|
| Model | LS101I13-MP-V1 | - |
| LCD Size (Diagonal) | 10.1 | inch |
| Resolution | 800(RGB) × 1280 | pixels |
| Active Area | 135.36(H) × 216.576(V) | mm |
| Module Outline (Approx.) | 143.0(H) × 228.5(V) × 2.82(D) | mm |
| Module Outline (with tolerances) | 143±0.3 (H) × 228.6±0.3 (V) × 2.8±0.2 (D) | mm |
| Pixel Pitch | 0.1692(H) × 0.1692(V) | mm |
| Display Colors | 16.7M | - |
| Display Type | Transmissive, IPS | - |
| Viewing Direction | All (IPS) | - |
| Interface | 4L-MIPI | - |
| Backlight | 28 CHIP WHITE LED | - |
| Main LCD Driver | ILI9881C | - |
| Operating Temperature | -10 ~ +50 | °C |
| Storage Temperature | -20 ~ +60 | °C |
| Supplier | 立信(万安)智显科技有限公司 (Lesson Smart Display Technology Co.,Ltd) | - |
Note: The active area and outline dimensions suggest a portrait (vertical) orientation as the default mounting orientation.
3.2 Interface & Electrical Specifications
3.2.1 Absolute Maximum Ratings
| Item | Symbol | Min. | Max. | Unit |
|---|---|---|---|---|
| Power Voltage | VDD | -0.3 | +5.0 | V |
| Backlight forward current | ILED | 0 | 25 | mA (For each LED) |
| Input Signal Voltage | $V_{1}$ | -0.3 | VCC | V |
| Operation Temperature | $T_{OP}$ | -10 | 50 | °C |
| Storage Temperature | $T_{ST}$ | -20 | 60 | °C |
3.2.2 Pin Description (30-Pin Connector)
The module uses a 30-pin FPC connector for the MIPI interface and power supply. Key signals from the pin description table include:
| PIN NO. | Symbol | Description |
|---|---|---|
| 1 | NC | No connection |
| 2 | VDD | Power Voltage for digital circuit 3.3V |
| 3 | VCCIO | Power Voltage for digital circuit 1.8V Note1 3.3V |
| 4, 7, 10, 13, 16, 19, 22, 25, 30 | GND | Ground |
| 5 | Reset | Global reset pin 1.8V Note1 3.3V |
| 6, 23, 24, 28, 29 | NC | No connection |
| 8, 9 | MIPI_ON / MIPI_OP | -/+ MIPI differential data input (Lane 0) |
| 11, 12 | MIPI_1N / MIPI_1P | -/+ MIPI differential data input (Lane 1) |
| 14, 15 | MIPI_CKN / MIPI_CKP | -/+ MIPI differential clock input |
| 17, 18 | MIPI_2N / MIPI_2P | -/+ MIPI differential data input (Lane 2) |
| 20, 21 | MIPI_3N / MIPI_3P | -/+ MIPI differential data input (Lane 3) |
| 26 | ID | ID (for module identification) |
| 27 | PWMO | PWM control signal for LED driver (CABC) |
Note 1 (VCCIO): The pin description states "Power Voltage for digital circuit 1.8V Note1 3.3V". This indicates the VCCIO pin can be supplied with either 1.8V or 3.3V, but the appropriate voltage for the I/O interface must be selected based on Note 1 in the full specification (which is not detailed in this snippet). The Reset pin similarly is listed as "1.8V Note1 3.3V", confirming the I/O voltage domain compatibility.
3.2.3 Backlight Unit Characteristics
The backlight is driven by an external LED power supply. The specification provides the circuit diagram characteristics from the outline drawing:
| Parameter | Symbol | Typ. | Unit | Condition |
|---|---|---|---|---|
| Backlight Supply Voltage | VLED | 13.2 | V | Typical voltage for LED circuit |
| Backlight Forward Current (Total) | ILED | 140 | mA | Total current for all LED chips |
| LED Chip Configuration | - | 28 Chips | - | Number of individual LED chips |
| LED Current (Per Chip, Max Absolute) | ILED (per LED) | 25 | mA | From Absolute Maximum Ratings |
Note: The LED circuit diagram in the outline drawing indicates a specific configuration for the 28 LED chips (likely a series-parallel arrangement). A constant-current boost converter is required to drive the backlight from a lower system voltage to the 13.2V (Typ) required. The PWM signal (PWMO pin 27) is likely used for Content Adaptive Brightness Control (CABC) but the exact dimming method is not detailed in this snippet.
3.3 Timing Characteristics
3.3.1 Power On Sequence
The specification provides a power-on sequence diagram with key timing parameters:
- Step 1: VDD and VCCIO power up first (time when the later signal rises up to 90% of its typical value).
- Step 2: RESX (Reset) signal: H to L to H. The note states "Reset signal H to L to H (#i) is better than only L to H (#2)".
- Step 3: MIPI signal stabilization: MIPI LP-11 state required before video data.
- Step 4: Video packet transmission.
- Step 5: Backlight turn on.
3.3.2 Power Off Sequence
- Step 1: Backlight turn off.
- Step 2: MIPI LP-00 (ULPM) state.
- Step 3: Video packet stop.
- Step 4: RESX signal H to L.
- Step 5: VDD and VCCIO power down (time when the former signal falls down to 90% of its typical value).
3.3.3 Reset Timing Characteristics
| Signal | Symbol | Parameter | MIN | TYP | MAX | Unit |
|---|---|---|---|---|---|---|
| RESX | tRESW | Reset "L" pulse width (Note 1) | 10 | - | - | μs |
| RESX | tREST | Reset complete time (Note 2) | - | - | 120 | ms |
Note 1 (tRESW): The reset pulse width must be at least 10μs for proper reset.
Note 2 (tREST): When reset applied during Sleep In Mode, the reset complete time is undefined. When reset applied during Sleep Out Mode (and Note 5 conditions), the maximum reset complete time is 120ms.
3.4 Electro-Optical Characteristics
The specification defines a section for Electro-Optical Characteristics (Section 8), but the detailed content is not fully provided in this snippet. The document references standard measurement methods and conditions for characterizing the display's optical performance (contrast ratio, luminance, viewing angle, chromacity, response time).
3.5 MIPI DSI Electrical Characteristics (HS/LP Mode)
The specification includes an MIPI DSI timing diagram showing the relationship between DSI clock (CLK+/-), data (D0+/-), and control signals. Key parameters from the diagram include:
- Differential voltage range: Specified for HS (High Speed) mode transmission.
- Termination resistor (RTERM): RTERM = RTERMPOS + RTERMNEG, with RTERMPOS = RTERMNEG + RTERM/2.
- Common mode voltage (VCM): Defined for both clock and data lines in HS mode.
4. Application Guidelines & Critical Notes
Intended Use
- Standard 10.1-inch display applications requiring a portrait (vertical) orientation with WUXGA (800×1280) resolution and MIPI DSI interface.
- Systems requiring an IPS display with wide viewing angles (All directions).
- Embedded systems, industrial controls, and portable devices using a 4-lane MIPI DSI interface.
Critical Design Considerations
- Power Supply (VDD = 3.3V, VCCIO = 1.8V or 3.3V): The module requires two digital power supplies:
- VDD (3.3V): The main logic power supply for the digital circuit.
- VCCIO (1.8V or 3.3V): The I/O interface power supply. The voltage must match the MIPI DSI host controller's I/O voltage. A level shifter may be required if the host uses a different voltage (e.g., 1.8V host with VCCIO set to 3.3V, or vice versa).
- MIPI DSI Interface (4-Lane): The module requires a MIPI DSI host with 4 data lanes (MIPI_0, MIPI_1, MIPI_2, MIPI_3) and a clock lane. The host must support the timing for an 800×1280 portrait display. The MIPI signal terminator must be correctly configured for the 100Ω differential impedance.
- External Backlight Driver with CABC Support: The module provides a PWMO pin (Pin 27) for Content Adaptive Brightness Control (CABC). The backlight driver must support:
- A total forward current of 140mA (Typ) at a forward voltage of 13.2V (Typ).
- An external constant-current boost converter is required to supply the backlight from the system voltage.
- The PWMO pin can be used to implement CABC, where the host processor adjusts the backlight brightness based on the displayed image content (e.g., to save power). The exact PWM signal characteristics (frequency, voltage levels) are not specified in this snippet, so they must be derived from the full specification or the driver IC (ILI9881C) datasheet.
- Critical Power-On/Off Sequence: The module has a specific power-on/off timing sequence that must be followed:
- Power On: VDD/VCCIO → Reset (H→L→H) → MIPI LP-11 → Video Data → Backlight On.
- Power Off: Backlight Off → MIPI LP-00 (ULPM) → Stop Video → Reset (H→L) → VDD/VCCIO Off.
- Reset Signal Timing: The RESET pin (Pin 5) requires a minimum low pulse width of 10μs. After the reset completes (tREST), the driver IC requires up to 120ms (when in Sleep Out Mode) before it is ready for commands. The specification recommends using a "H to L to H" sequence (#1) rather than just "L to H" (#2).
- Operating Temperature Range (-10°C to +50°C): This is a consumer-grade temperature range. It is not suitable for industrial environments where temperatures may exceed 50°C.
- Storage Temperature Range (-20°C to +60°C): Ensure the module is stored within this range to prevent damage from extreme temperatures.
- Mechanical Integration (Portrait Orientation): The module has an active area of 135.36mm (H) × 216.576mm (V) and an outline of approximately 143mm × 228.5mm. The module is designed for landscape orientation (H=Horizontal). Ensure the mechanical design accommodates the FPC routing and the connector location.
- Driver IC (ILI9881C): The main LCD driver is the ILI9881C from Ilitek. For detailed MIPI command set, register configurations, and advanced features (like CABC, gamma tuning, etc.), designers should consult the ILI9881C datasheet directly. The initial MIPI commands must be sent during the power-on sequence to configure the driver IC for operation.
Handling & Compliance
- Observe standard ESD precautions during handling and assembly.
- The module contains fragile glass – handle with care. Avoid mechanical stress on the active area or FPC.
- Do not attempt to disassemble or modify the LCD module.
- All NC (No Connection) pins should be left open.
- The specification states "TP边缘不能接触到金属导体" (TP edge cannot contact metal conductor) and "建议外壳可视区域比VA单边0.3mm以上" (Suggest mechanical outline > VA by 0.3mm per side) — these are critical mechanical design notes from the outline drawing.
5. Conclusion & Design-In Support
The LS101I13-MP-V1 specification details a 10.1-inch WUXGA (800×1280) IPS TFT LCD module with a 4-lane MIPI DSI interface, offering wide viewing angles, CABC support, and a well-documented power-on/off sequence — a suitable choice for portrait-oriented display applications in consumer-grade products.
Key Strengths
- IPS Display Technology: Provides superior wide viewing angles (All directions) and good image quality.
- WUXGA Resolution (800×1280): A standard portrait resolution for many tablet and embedded applications.
- 4-Lane MIPI DSI Interface: A modern, high-bandwidth interface for efficient data transfer.
- CABC (Content Adaptive Brightness Control): Provides a dedicated PWMO pin for backlight control to reduce power consumption.
- Clear Pinout and Timing Information: The specification provides detailed pin assignments and power-on/off timing diagrams for reliable system integration.
Main Design Focus
- The critical design tasks are providing the correct power supplies (VDD=3.3V and VCCIO=1.8V/3.3V) with careful sequencing, implementing the 4-lane MIPI DSI interface on the host processor with proper timing for an 800×1280 portrait display, and designing a constant-current backlight driver (140mA at 13.2V) with CABC support.
- Supporting requirements: Implement the power-on/off sequence as defined in the specification (including the reset pulse). Consult the ILI9881C driver IC datasheet for the initial MIPI command sequence. Design a secure mechanical housing that respects the mechanical design notes (VA < outline by 0.3mm, no metal contact on TP edge).
This module is a good choice for engineers designing standard 10.1-inch portrait-oriented display systems with an MIPI interface, requiring wide-angle viewing and power-saving features like CABC.
