LESSON LS140I01-E-V1 14.09-Inch TFT-LCD Module: Complete Product Specification

Document Revision: 1.0
Publication Date: December 23, 2025 (Upload Date)
Keywords: LS140I01-E-V1, 14.09 inch LCD, Touch Bar, 4K, 3840x1100, eDP, a-Si TFT, Notebook, Product Specification

1. GENERAL DESCRIPTION

1.1 Product Overview

The LS140I01-E-V1 is a color active matrix TFT LCD module using amorphous silicon (a-Si) TFTs as active switching devices. This module has a 14.09-inch diagonally measured active area with 4K1K resolutions (3840 horizontal by 1100 vertical pixel array). Each pixel is divided into RED, GREEN, BLUE dots which are arranged in a vertical stripe. This module can display 16.7M (8-bit) colors with a color gamut of 72% NTSC. The TFT-LCD panel used for this module is a low reflection and higher color type. Therefore, this module is specifically designed and suitable for Notebook Touch Bar applications. The LED driver for backlight driving is built into this model.

1.2 Module Construction

The module type is specified as COG+FPC+B/L:

• COG (Chip-On-Glass): The driver IC is mounted directly on the LCD glass substrate.
• FPC (Flexible Printed Circuit): Provides the electrical interface.
• B/L (Backlight): An integrated LED backlight unit.

2. PHYSICAL FEATURES

3. MECHANICAL SPECIFICATION

4. ABSOLUTE MAXIMUM RATINGS

Ta = 25±2°C

Notes:

1. Permanent damage may occur if maximum values are exceeded.
2. Temperature and humidity ranges are defined: Max 95% RH at Ta≤40°C; Max wet-bulb temp 39°C at Ta>40°C; No condensation allowed.

5. ELECTRICAL CHARACTERISTICS

5.1 Power Supply & Control

Ta = 25±2°C

5.2 Current & Power Consumption

Ta = 25±2°C

Notes:

1. Measured at the interface connector. Current and power specified for 3.3V at 25°C.
2. Backlight Unit power.
3. Inrush current measurement condition defined in Figure 5.

6. BACKLIGHT UNIT

6.1 LED Specifications

Ta = 25±2°C

6.2 Backlight Control

Notes:

1. Power supply voltage 12V for LED driver.
2. LED lifetime defined as estimated time to 50% degradation of initial luminous.

7. MODULE FUNCTION DESCRIPTION

7.1 Block Diagram

eDP Connector --> Timing Controller (T-CON)
    |
    |--> LED Driver
    |--> Flash
    |--> Data Signal --> S-Driver (Source Driver)
    |--> VCORE/DVDD --> DC/DC Converter
    |
    TFT LCD Panel (3840×1100 RGB) <-- GOA (Gate Driver) <-- S-Driver
    |
    LED Driver --> LEDOUT --> LED Lighting Bar
    |
    DC/DC Converter --> VDD (to LED Driver)

7.2 Pin Description

The electronics interface connector is LVDS type. The mating connector part number is UJU IS050-L30B-C10 (30-pin).

7.3 BLU Interface Connector

The backlight unit interface connector is STM MSK24022P10 (10-pin).

8. TIMING CHARACTERISTICS

8.1 Basic Timing (DE Only Mode)

Note: The above is optimized setting.

8.2 eDP Rx Interface Timing

8.3 HPD & AUX Characteristics

9. POWER SEQUENCE

To prevent latch-up or DC operation, the power on/off sequence must be followed as shown in Figure 18.

Critical Notes:

1. When V_DD is 0V, keep input signals low or high impedance.
2. Do not keep interface signal high impedance when power is on. Backlight must be turned on after power for logic and interface signals are valid.

Specific Logic Power Ramp (T11):

• T11 = T20 + T21 + T22
• T20 = 3.3V
• T21 = 1.4V
• T22 = 0.33V

10. ELECTRO-OPTICAL CHARACTERISTICS

10.1 Measurement Conditions

Measured in a dark room (≤1 lux) at 25±2°C, using a photo detector (PR730) at a distance of 50cm from the LCD surface with viewing angles θ and Φ equal to 0°. The backlight operates for 30 minutes prior to measurement. V_DD = 3.3±0.3V.

10.2 Optical Specification Table

Notes:

1. Viewing angle is the angle at which contrast ratio > 10.
2. Contrast measurements at viewing angle Θ=0° at center of LCD surface.
3. Luminance measured with all pixels set to white, then to black.
4. Luminance contrast ratio defined as: CR = Luminance(white) / Luminance(black)

10.3 Optical Measurement Setup

• Measurement Equipment: Photo detector (PR730)
• Field of View: 2°
• Distance: 50cm from LCD surface
• Measurement Point: Center of the screen

10.4 Luminance Uniformity Measurement

• 5-Point Measurement: Locations shown in Figure 8
• 13-Point Measurement: Locations shown in Figure 9
• Uniformity Calculation:
  • ΔY₅ = Min Luminance(5 points) / Max Luminance(5 points)
  • ΔY₁₃ = Min Luminance(13 points) / Max Luminance(13 points)

11. APPLICATION & INTEGRATION SUMMARY

11.1 Primary Application: Premium Notebook Touch Bar

This module is explicitly designed for high-end laptop touch bars, providing ultra-high 4K resolution (3840x1100) in a narrow form factor for advanced function controls, application shortcuts, and system monitoring.

11.2 Key Advantages

1. Ultra-High Resolution: 4K resolution (3840x1100) provides exceptional pixel density for sharp text and icons.
2. Wide Color Gamut: 72% NTSC color gamut ensures vibrant colors.
3. Excellent Viewing Angles: IPS technology with 85° typical viewing angles.
4. Modern Interface: eDP interface with integrated backlight control.
5. Good Brightness: 300 cd/m² typical luminance suitable for most lighting conditions.

11.3 Critical Integration Points

1. Power Supply: Provide stable 3.3V for logic (max 670mA for RGB mode) and 5-20V (12V typ.) for backlight (max 167mA).
2. Interface: Host must support eDP interface with proper link training for 4K resolution.
3. Power Sequence: Must follow strict power sequence to prevent damage.
4. Thermal Management: Ensure adequate heat dissipation for 4K display operation.
5. Mechanical: Module dimensions 350.52mm × 118.65mm × 2.5mm fit standard laptop touch bar designs.

Conclusion: The LS140I01-E-V1 is a cutting-edge 14.09-inch 4K display module specifically engineered for premium Notebook Touch Bar applications. With its ultra-high 3840x1100 resolution, 72% NTSC color gamut, IPS viewing angles, and modern eDP interface, this module represents the pinnacle of touch bar display technology for high-end laptops.

Final Disclaimer: This document is a comprehensive summary extracted from the provided LS140I01-E-V1 (SPEC).pdf (Rev. 1.0). For production design, the complete, official specification document from LESSON must be obtained and followed. All specifications, tolerances, and sequences are subject to the final, released version.