LS140I01-E-V1: 14.09-Inch Color Active Matrix TFT-LCD Module, 4K 1K 3840×1100 Resolution, 16.7M Colors (8-bit), 72% NTSC Color Gamut, eDP Interface (2-Lane), 30-Pin, Normally Black, Notebook Touch Bar Application
Product Subtitle / Keywords
14.09 Inch Display, 3840(RGB)×1100 4K1K Ultra-Wide Resolution, Transmissive Color Active Matrix a-Si TFT-LCD, Normally Black Mode, eDP Interface (2 Main Link Lanes + AUX Channel + HPD), COG+FPC+B/L Module Type, 16.7M Colors (8-bit), 30-Pin Connector (UJU IS050-L30B-C10), 3.3V Typical Logic Supply, 12V Typical Backlight Supply, 0°C~+60°C Operating Temperature, -20°C~+65°C Storage Temperature, White LED Backlight (Built-in Driver, 9.5mA Per LED), 72% NTSC Color Gamut, Low Reflection High Color Type, 15,000 Hours LED Lifetime, Ultra-Wide Aspect Ratio, Lesson Smart Display Technology
1. Executive Summary And Product Positioning
The LS140I01-E-V1, developed by Lesson Smart Display Technology Co., Ltd. (立信(万安)智显科技有限公司), is a 14.09-inch transmissive type color active matrix TFT-LCD (amorphous silicon thin film transistor liquid crystal display) module employing a low reflection and higher color type panel for exceptional visual quality.
This product specification (Revision 1.0) serves as the definitive technical document, defining its structural composition (COG+FPC+B/L), general description, physical features, absolute maximum ratings, electrical characteristics, optical specifications, and complete eDP interface pinout (30-pin). It delivers a unique 4K1K resolution of 3840(RGB)×1100 with 16.7M-color (8-bit) display capability and a wide color gamut of 72% NTSC, making it particularly suitable for applications requiring ultra-wide high-resolution displays.
The document provides the core parameters necessary for system integration into embedded display applications requiring an ultra-wide high-resolution display with a standard high-speed embedded display interface. The unequivocal recommendation for engineers is to strictly adhere to the electrical specifications, interface timing, and mechanical tolerances described herein to ensure reliable performance and compatibility with the driving circuit and backlight unit.
2. Detailed Product Overview And Architecture
- Core Technology: Color active matrix TFT-LCD using amorphous silicon TFT's as active switching devices. The panel is a low reflection and higher color type.
- Display Mode: Transmissive type, Normally Black mode.
- Display Format: Graphic 3840(RGB)×1100 pixel array (4K1K format, ultra-wide aspect ratio).
- Display Characteristics: Capable of displaying up to 16.7 million colors (8-bit) with a wide color gamut of 72% NTSC.
- Module Construction: COG (Chip-On-Glass) + FPC (Flexible Printed Circuit) + B/L (Backlight Unit) as per module type definition.
- Interface Type: eDP (Embedded DisplayPort) interface with 2 main link lanes plus AUX channel and HPD (Hot Plug Detect).
- Connector Pin Count: 30-Pin (mating connector UJU IS050-L30B-C10).
- Backlight LED: White LED backlight with built-in driver. LED forward current IF=9.5mA typical, forward voltage VF up to 2.9V.
- Special Features: Ultra-wide 4K1K resolution, 72% NTSC color gamut, low reflection high color type panel, suitable for Notebook Touch Bar.
- Approval Status: Approved Product Specification only (Revision 1.0).
3. Exhaustive Technical Specifications
3.1 General Specifications Table
| Parameter | Specification | Unit | Note |
|---|---|---|---|
| Panel Size (Diagonal) | 14.09 | inch | Measured diagonally |
| Number of Dots / Resolution | 3840(RGB) x 1100 | pixels | 4K1K format, ultra-wide 3.49:1 aspect ratio |
| Display Type | Color Active Matrix a-Si TFT, Transmissive, Normally Black | - | Low reflection, high color |
| Module Type | COG+FPC+B/L | - | Integrated construction |
| Display Colors | 16.7M | colors | 8-bit RGB signal input |
| Pixel Arrangement | RGB Vertical Stripe | - | Standard stripe |
| Color Gamut | 72% NTSC | % | Typical, wide color range |
| Interface Type | eDP (Embedded DisplayPort) | - | 2 main link lanes + AUX + HPD |
| Backlight Type | White LED, Edge Light | - | Built-in driver |
| Operating Temperature | 0 to +60 | °C | Note 2 |
| Storage Temperature | -20 to +65 | °C | Note 2 |
3.2 Mechanical And Physical Specifications
The mechanical specifications are precisely defined in the outline drawing section (Section 4) of the specification document. The module outline width is 350.52±0.3 mm, the CF polarizer width is 346.62±0.3 mm, and the active area width is 344.22±0.1 mm. The vertical dimensions include the outline height of 118.65±0.5 mm (with PCB), the active area height of 101.30±0.1 mm, and the CF polarizer height of 108.75±0.3 mm. The active area dimensions (AA) are 344.22 mm (H) by 101.30 mm (V). The outline dimensions are 350.52 mm (W) by 126.92 mm (H) as derived from the drawing data. The pixel pitch is approximately 0.0896 mm (H) by 0.0921 mm (V). The bezel opening area is defined on both sides with specific tolerance. The FPC bend area and connector location are specified in the layout. The LED connector area is also detailed. The module uses a side mounting frame for easy integration. General tolerance for dimensions is ±0.3 mm unless otherwise specified.
3.3 Electrical And Interface Specifications
3.3.1 Absolute Maximum Ratings (Ta=25°C±2°C)
| Parameter | Symbol | Min. | Max. | Unit | Remark |
|---|---|---|---|---|---|
| Power Supply Voltage | VDD | -0.3 | 4.0 | V | Note 1 |
| eDP Input Voltage | VeDP | 0 | 1.2 | V | Note 1 |
| Logic Supply Voltage | VIN | VSS-0.3 | VDD+0.3 | V | Note 1 |
| Operating Temperature | TOP | 0 | +60 | °C | Note 2 |
| Storage Temperature | TST | -20 | +65 | °C | Note 2 |
3.3.2 Electrical Characteristics (Ta=25°C±2°C)
| Parameter | Symbol | Min. | Typ. | Max. | Unit | Remark |
|---|---|---|---|---|---|---|
| Power Supply Voltage | VDD | 3.0 | 3.3 | 3.6 | V | Note 1 |
| Permissible Input Ripple Voltage | VRF | - | - | 100 | mV | @ VDD=3.3V |
| BIST Control High Level | - | 0.8 VDDIO | - | 3.3 | V | @ VDDIO=1.8V |
| BIST Control Low Level | - | 0 | - | 0.15 VDDIO | V | @ VDDIO=1.8V |
| Power Supply Inrush Current | Inrush | - | - | 2 | A | Note 3 |
| Power Supply Current (Mosaic) | IDD | - | 330 | 360 | mA | Note 1, Mosaic pattern |
| Power Supply Current (RGB) | IDD | - | 600 | 670 | mA | Note 1, RGB pattern |
| Power Consumption (Mosaic) | PM | - | - | 1.1 | W | Note 1 |
| Power Consumption (RGB) | PRGB | - | - | 2.0 | W | Note 1 |
| Power Consumption (BLU) | PBL | - | - | 2.0 | W | Note 2 |
| Power Consumption (Total) | PTotal | - | - | 3.1 | W | @Mosaic |
3.3.3 Backlight Driving Guidelines (Ta=25°C±2°C)
| Parameter | Symbol | Min. | Typ. | Max. | Unit | Remark |
|---|---|---|---|---|---|---|
| LED Forward Voltage | VF | - | - | 2.9 | V | Per LED |
| LED Forward Current | IF | - | 9.5 | - | mA | Per LED |
| LED Power Input Voltage | VLED | 5 | 12 | 21 | V | Driver input |
| LED Power Input Current | ILED | - | - | 167 | mA | Note 1, at 12V |
| LED Power Consumption | PLED | - | - | 2.0 | W | Note 1 |
| LED Driver Inrush Voltage | VLED Inrush | 5 | 12 | 21 | V | Note 3 |
| LED Life-Time | N/A | 15,000 | - | - | Hour | IF=20mA, Note 2 |
| BL EN High Level (On) | VBL_EN | 1.8 | 2.5 | 5.0 | V | - |
| BL EN Low Level (Off) | VBL_EN | 0 | - | 0.5 | V | - |
| PWM High Level | VBL_PWM | 1.8 | 2.5 | 5.0 | V | - |
| PWM Low Level | VBL_PWM | 0 | - | 0.5 | V | - |
3.3.4 EDP Interface Pin Assignment (CN1 30-Pin, UJU IS050-L30B-C10)
| Pin No. | Symbol | I/O | Description | Remark |
|---|---|---|---|---|
| 1 | CABC | I | CABC Function | Content Adaptive Brightness Control |
| 2 | H_GND | P | Ground | Signal return |
| 3 | LANE1_N | I | eDP RX Channel 1 Negative | Complement lane 1 |
| 4 | LANE1_P | I | eDP RX Channel 1 Positive | True lane 1 |
| 5 | H_GND | P | Ground | Signal return |
| 6 | LANE0_N | I | eDP RX Channel 0 Negative | Complement lane 0 |
| 7 | LANE0_P | I | eDP RX Channel 0 Positive | True lane 0 |
| 8 | H_GND | P | Ground | Signal return |
| 9 | AUX_CH_P | I/B | eDP AUX CH Positive | Bidirectional auxiliary |
| 10 | AUX_CH_N | I/B | eDP AUX CH Negative | Bidirectional auxiliary |
| 11 | H_GND | P | Ground | Signal return |
| 12 | LCD_VCC | P | Power Supply, 3.3V (typ.) | LCD logic power |
| 13 | LCD_VCC | P | Power Supply, 3.3V (typ.) | LCD logic power |
| 14 | LCD_Self_test | I | Panel Self Test Enable | BIST function |
| 15 | H_GND | P | Ground | Signal return |
| 16 | H_GND | P | Ground | Signal return |
| 17 | ASUSD | O | Hot Plug Detect Output | HPD signal |
| 18 | BL_GND | P | LED Ground | Backlight return |
| 19 | BL_GND | P | LED Ground | Backlight return |
| 20 | BL_GND | P | LED Ground | Backlight return |
| 21 | BL_GND | P | LED Ground | Backlight return |
| 22 | BL_ENABLE | I | LED Enable Pin (+3.3V Input) | Active high |
| 23 | BL_PWM | I | System PWM Signal Input | Brightness dimming |
| 24 | NC | - | No Connection | Keep open |
| 25 | NC | - | No Connection | Keep open |
| 26 | BL_POWER | P | LED Power Supply 5V-20V | Backlight input power |
| 27 | BL_POWER | P | LED Power Supply 5V-20V | Backlight input power |
| 28 | BL_POWER | P | LED Power Supply 5V-20V | Backlight input power |
| 29 | BL_POWER | P | LED Power Supply 5V-20V | Backlight input power |
| 30 | NC | - | No Connection | Keep open |
Note: I = Input, O = Output, P = Power, B = Bidirectional. The main connector is UJU IS050-L30B-C10. A separate BLU interface connector (STM MSK24022P10) is used for the LED bar connection with pins for LED cathode (pins 1-6) and LED anode (pins 9-10).
3.4 Optical Characteristics (Ta=25°C±2°C, Dark Room ≤1 lux, 30min Warm-up)
| Parameter | Symbol | Condition | Min. | Typ. | Max. | Unit | Remark |
|---|---|---|---|---|---|---|---|
| Viewing Angle Horizontal (Left/Right) | Θ3 / Θ9 | CR > 10 | - | 80 | 89 | Deg. | Note 1 |
| Viewing Angle Vertical (Up/Down) | Θ12 / Θ6 | CR > 10 | - | 80 | 89 | Deg. | Note 1 |
| Contrast Ratio | CR | Θ = 0° | - | 800 | - | - | Note 2 |
| Luminance of White (5 Points) | Yw | Θ = 0° | 212.5 | 250 | - | cd/m² | Note 3 |
| White Luminance Uniformity (5 Points) | ΔY5 | Θ = 0° | 80 | - | - | % | Note 4 |
| White Luminance Uniformity (13 Points) | ΔY13 | Θ = 0° | 62.5 | 71.4 | - | % | Note 4 |
| White Chromaticity (x) | Wx | Θ = 0° | 0.283 | 0.313 | 0.343 | - | Note 5 |
| White Chromaticity (y) | Wy | Θ = 0° | 0.299 | 0.329 | 0.359 | - | Note 5 |
| Color Gamut | - | - | - | 72 | - | % | NTSC standard |
| Response Time (Rising) | Tr | Ta=25°C | - | 11 | 16 | ms | Note 6 |
| Response Time (Falling) | Tf | Ta=25°C | - | 9 | 14 | ms | Note 6 |
| Cross Talk | CT | Θ = 0° | - | - | 2.0 | % | Note 7 |
3.5 Signal Timing Specification (DE Only Mode, Optimized Setting)
| Item | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Clock Frequency | 1/Tc | - | 269.5 | - | MHz |
| Frame Period | Tv | - | 1140 | - | lines |
| Frame Rate | - | - | 60 | - | Hz |
| Frame Period (Time) | - | - | 16.67 | - | ms |
| Vertical Display Period | Tvd | - | 1100 | - | lines |
| One Line Scanning Period | Th | - | 3940 | - | clocks |
| Horizontal Display Period | Thd | - | 3840 | - | clocks |
3.6 EDP Rx Interface Timing Parameter
| Item | Symbol | Min | Typ | Max | Unit | Remark |
|---|---|---|---|---|---|---|
| Spread Spectrum Clock (Down-spreading) | SSC | - | - | 0.5 | % | Link clock modulation |
| EYE Width at Package Pins | VRX-EYE | 0.38 | - | - | UI | Unit Interval |
| Differential Peak-to-Peak Input Voltage | VRX-DIFF-p | 70 | - | 1200 | mV | At package pins |
| Rx Input DC Common Mode Voltage | VRX_DC_CM | 0 | - | 2 | V | - |
| Differential Termination Resistance | RRX-DIFF | 80 | - | 100 | Ω | - |
| Single-Ended Termination Resistance | RRX-SE | 40 | - | 60 | Ω | - |
| Rx Short Circuit Current Limit | IRX_SHORT | - | - | 20 | mA | - |
| Intra-pair Skew at Rx Package Pins (HBR) | LRX_SKEW_INTRAPAIR | - | - | 60 | ps | HBR rate tolerance |
| AC Coupling Capacitor (Source Side) | CSOURCE_ML | 75 | - | 200 | nF | For main link lanes |
3.7 HPD And AUX Channel Characteristics
| Parameter | Symbol | Min | Typ | Max | Unit | Remark |
|---|---|---|---|---|---|---|
| HPD Voltage | VHPD | 2.5 | - | 3.6 | V | Sink output |
| Hot Plug Detection Threshold | - | 2.0 | - | - | V | Source side |
| Hot Unplug Detection Threshold | - | - | - | 0.8 | V | Source side |
| HPD_IRQ Pulse Width | HPD_IRQ | 0.5 | - | 1 | ms | - |
| HPD_TimeOut | - | 2.0 | - | - | ms | - |
| AUX Unit Interval | UIAUX | 0.4 | 0.5 | 0.6 | μs | - |
| AUX Peak-to-Peak Input Differential Voltage | VAUX-RX-DIFF-p | 0.29 | - | 1.38 | V | At sink connector |
| AUX CH Termination DC Resistance | RAUX-TERM | 80 | 100 | 120 | Ω | - |
| AUX DC Common Mode Voltage | VAUX-DC-CM | 0 | - | 2 | V | - |
| AUX Turn Around Common Mode Voltage | VAUX-TURN-CM | - | - | 0.3 | V | - |
| AUX Short Circuit Current Limit | IAUX-SHORT | - | - | 90 | mA | - |
| AUX AC Coupling Capacitor (Source Side) | CSOURCE-AUX | 75 | - | 200 | nF | - |
4. Power On/Off Sequence And Timing
The power-on and power-off sequence must be strictly followed to prevent latch-up or DC operation of the LCD module. The timing diagram in the specification shows the relative timing of VDD, backlight power (VLED), eDP display signals, and backlight enable signals. Key timing requirements include: T1 (0.5ms to 10ms), T2 (0ms to 200ms), T3 (0ms to 200ms), T4+T5+T6+T8 to be greater than 80ms, T7 (0ms to 50ms), T8 (greater than 50ms), T10 (0ms to 500ms), T11 (0.5ms to 10ms), T12 (greater than 500ms), T17 (greater than 0.5ms), and T18 (greater than 0.5ms). When the power supply VDD is 0V, keep input signals low or high impedance. Do not keep interface signals high impedance when power is on. The backlight must be turned on only after the logic and interface signals are valid. The T11 timing requirements specify the voltage rise and settling time from specific voltage thresholds. Proper adherence to these sequences ensures long-term reliability and prevents damage to the driver IC and panel.
5. Backlight System And Dimming Control
The backlight unit uses an edge-lit LED configuration with a built-in LED driver for simplified system integration. The LED structure diagram (Figure 6) shows the arrangement of multiple LEDs in series and parallel configuration. The backlight power input (BL_POWER pins 26-28) accepts a wide voltage range from 5V to 20V, with typical operation at 12V. The forward current per LED is set at 9.5mA typical, and the total LED power consumption is up to 2.0W. The enable and brightness control are managed externally: BL_ENABLE (pin 22) is an active high input (1.8V to 5.0V) to turn on the backlight, while BL_PWM (pin 23) accepts a PWM signal (1.8V to 5.0V high, 0V to 0.5V low) for dimming. The PWM frequency and duty cycle are defined by the system designer. The LED lifetime is rated at 15,000 hours minimum (tested at higher current of 20mA), defined as the time to 50% degradation of initial luminous flux. The inrush current of the LED driver must be considered during system power supply design. The block diagram shows the interconnection of the LED driver with the timing controller and DC/DC converter for various voltage rails.
6. Application Scenario
The LS140I01-E-V1's unique 14.09-inch diagonal size with 4K1K resolution (3840x1100, approximately 3.49:1 aspect ratio) and 72% NTSC color gamut makes it an outstanding choice for premium Notebook Touch Bar applications. The ultra-wide format is specifically designed as a secondary display strip that enhances user interaction by providing context-sensitive controls and dynamic information. The high resolution and wide color gamut ensure crisp, vibrant visual content. Beyond touch bars, this module can be used in other specialized applications such as advertisement display strips, instrument panels, gaming peripherals, and custom embedded systems requiring a unique ultra-wide high-resolution format. The low reflection panel ensures good readability in varied lighting conditions. The operating temperature range of 0°C to +60°C supports typical indoor use, while the storage range of -20°C to +65°C provides flexibility for shipping and storage. The module's 2-lane eDP interface with 269.5MHz clock frequency handles the high bandwidth requirements of the 4K1K resolution at 60Hz. The side mounting frame allows for easy mechanical integration. The 72% NTSC color gamut provides vivid and saturated colors suitable for multimedia and graphical interfaces.
7. Handling Precautions And Compliance
The LCD panel is constructed of glass and is fragile. The polarizer surface is easily scratched. The module should be handled with care to avoid applying pressure on the display area. ESD (Electrostatic Discharge) protection is mandatory throughout handling and assembly. The module should be stored in a clean, dry environment away from direct sunlight and corrosive gases. The recommended storage conditions are within the specified temperature and humidity ranges with no condensation. The module is designed to comply with environmental regulations. The bar code label includes model number, date code, and traceability information. The user is responsible for designing the cabinet to avoid mechanical stress and for maintaining proper ventilation around the module. It is strongly recommended to read the full specification document (LS140I01-E-V1 Product Specification Revision 1.0) before integration and to test the module under application-specific conditions to verify compatibility and performance. The manufacturer disclaims liability for damages resulting from improper use or modification. The module is not intended for use in life support systems or critical medical equipment unless explicitly approved.
