LESSON 21.5-Inch TFT-LCD Display Module Series: Complete Technical Specifications

Publication Date: March 6, 2026
Keywords: 21.5 inch LCD, LSC215I04-L-V1, LS215I03-L-V1, LS215I04-L-V1, LS215I02-L-V1, LSL215I01-L-V1, LS2145I01-L-V1, FHD, 1920x1080, IPS, VA, LVDS, Monitor, Industrial, Control Terminal

1. Series Overview & Core Positioning

The LESSON 21.5-inch series represents a comprehensive lineup of FHD (1920x1080) resolution displays in a 16:9 aspect ratio. This size is ideal for desktop monitors, industrial control terminals, and process controllers, offering a balance between screen real estate and physical footprint. The series demonstrates LESSON's capability to deliver standardized visual performance through various panel technologies (IPS, VA), brightness levels (230-500 nits), and specialized features for different application environments.

Common Technical Foundation:

• Screen Size: 21.5 inches (diagonal) - Note: LS2145I01-L-V1 is 21.45 inches
• Primary Resolution: 1920 (H) x 1080 (V) pixels (FHD)
• Aspect Ratio: 16:9 (Standard widescreen format)
• Pixel Configuration: RGB Vertical Stripe
• Display Mode: Normally Black (for most models)
• Interface: Primarily LVDS (Dual channel)

2. Detailed Model-by-Model Analysis

The series comprises several distinct models with varying specifications. Below is a consolidated technical table followed by a deep dive into each model.

2.1 Consolidated Technical Specification Table

Note: Multiple documents exist for LS215I04-L-V1 with different brightness specifications (230-250 nits, 300 nits, 500 nits).

3. In-Depth Model Breakdown

3.1 LSC215I04-L-V1: The High-Brightness Industrial Module

• Description: A 21.5-inch FHD TFT LCD module with 500 nits brightness and 3000:1 contrast ratio.
• Key Specifications:
  • Active Area: 478.656 (H) × 260.28 (V) mm
  • Number of Pixels: 1920(H) × 1080(V)
  • Pixel Pitch: 0.08275(H) × 0.24825(V) mm
  • Display Colors: 16.7M colors
  • Display Mode: Normally Black
  • Outline Dimensions: 495.6(H) × 292.2(V) × 9.5(D) mm (typical)
  • Weight: TBD
• Features:
  • Brightness: 500 nits
  • HD Resolution (1920 × 1080)
  • Very High Contrast Ratio: 3000:1
  • Monitors for Process Controller
  • DE (Data Enable) only mode
  • HADs technology for high display quality
  • RoHS compliant
• Block Diagram: Shows signal flow: Timing Controller[LVDS Rx & Mini-LVDS Tx integrated] → Source Driver and Power Circuit Block
• Positioning: High-brightness industrial variant for environments with strong ambient light. Suitable for process controllers and control terminals.

3.2 LS215I03-L-V1: The Standard Monitor Module

• Description: A 21.5-inch color active matrix LCD with LED backlight assembly without LED driver.
• Key Specifications:
  • Display Mode: Active matrix TFT, Transmissive type
  • Display Format: Graphic 1920(RGB) × 1080 Dot-matrix
  • Input Data: LVDS
  • Viewing Direction: Free (IPS) - indicates IPS panel technology
  • Features: High contrast ratio, high color saturation, high color depth
  • Compliance: CSOT open cell comply with RoHS
• Positioning: Standard monitor-grade variant with IPS technology for wide viewing angles. Designed for monitor products.

3.3 LS215I04-L-V1: The Multi-Variant Mainstream Module

• Description: Appears in multiple documents with different brightness specifications, suggesting this is a versatile platform.
• Key Specifications (Common):
  • Active Area: 478.656 (H) × 260.28 (V) mm (some variants: 476.64×268.11 mm)
  • Number of Pixels: 1920(H) × 1080(V)
  • Pixel Pitch: 0.08275(H) × 0.24825(V) mm
  • Pixel Arrangement: RGB Vertical
  • Display Colors: 16.7M colors
  • Display Mode: Normally Black
  • Outline Dimensions: 495.6(H) × 292.2(V) × 9.5(D) mm (typical)
• Brightness Variants:
  1. 230-250 nits variant: Standard brightness for office/indoor use
  2. 300 nits variant: Enhanced brightness variant
  3. 500 nits variant: High brightness for industrial use
• Features (Common):
  • HD Resolution (1920 × 1080)
  • Very High Contrast Ratio: 3000:1
  • Monitors for Process Controller
  • DE (Data Enable) only mode
  • HADs technology for high display quality
  • RoHS compliant
• Additional Specifications (230-250 nits variant):
  • Surface Treatment: AG25%, 3H (Anti-Glare 25%, 3H hardness)
  • Open Cell Reference: PN215CT01-1
• Positioning: Versatile mainstream platform available in multiple brightness grades for different applications.

3.4 LS215I02-L-V1: The Wide Color Gamut Module

• Description: A 21.5-inch wide color a-Si TFT-LCD module supporting Full HD format.
• Key Specifications:
  • Screen Diagonal: 546.21 mm (21.50")
  • Active Area: 476.064 (H) × 267.786 (V) mm
  • Pixels: 1920(×3) × 1080
  • Pixel Pitch: 247.95 µm (per one triad) × 247.95 µm
  • Pixel Arrangement: R.G.B. Vertical Stripe
  • Display Mode: VA Mode, Normally Black
  • Response Time: 18 ms (Typical, on/off)
  • Power Consumption:
    • LCD module: 3.2 W (Typical) @ White pattern, Fv=60Hz
    • Backlight unit: 9.86 W @ Is=50mA
  • Electrical Interface: Dual channel LVDS
  • Support Color: 16.7M colors (RGB 6-bits + Hi-FRC)
  • Surface Treatment: Anti-Glare, 3H
  • Temperature Range: Operating: 0 to +50°C, Storage: -20 to +60°C
  • Cell Transmittance: 3.60% (Typical)
• Block Diagram: Shows LVDS Signal → Connector → DC/DC Converter and LVDS Receiver → Timing Controller architecture
• Positioning: Wide color gamut variant with VA technology and 6-bit+FRC color depth.

3.5 LSL215I01-L-V1: The Full HD 8-bit Module

• Description: A 21.5-inch wide color a-Si TFT-LCD module T215HVN01.1 with Full HD support.
• Key Specifications:
  • Screen Diagonal: 546.86 mm (21.53")
  • Active Area: 476.64 (H) × 268.11 (V) mm
  • Pixels: 1920(×3) × 1080
  • Pixel Pitch: 248.25 µm (per one triad) × 248.25 µm
  • Pixel Arrangement: R.G.B. Vertical Stripe
  • Display Mode: VA Mode, Normally Black
  • Response Time: 18 ms (Typical, on/off)
  • Power Consumption: 3.1 W (Typical) @ all white pattern, Fv=60Hz
  • Electrical Interface: Dual channel LVDS, 8 bits RGB data input
  • Support Color: 16.7M colors
  • Surface Treatment: Anti-Glare, 3H
  • Temperature Range: Operating: 0 to +50°C, Storage: -20 to +60°C
  • Cell Transmittance: 3.04% (Typical)
• Connector Specifications:
  • TFT-LCD Connector: P-TWO AL230F-A0G1D-P or STM MSCKT2407P30HB
  • Mating Connector: JAE FI-X30HL (Locked Type)
• Positioning: 8-bit color variant with native 8-bit RGB input for better color gradation.

3.6 LS2145I01-L-V1: The Ultra High Contrast CID Module

• Description: A 21.45-inch color active matrix LCD open cell with 2 Channel interface.
• Key Features:
  • FHD Resolution (1920 × 1080)
  • Very High Contrast Ratio: 4000:1
  • High Color Saturation: 72% NTSC
  • Fast Response Time
  • Ultra Wide Viewing Angle: 178°(H)/178°(V) (CR≥10)
  • DE (Data Enable) Mode
  • LVDS (Low Voltage Differential Signaling) Interface
• Overview: Transmissive type display operating in normally black mode, supports 1920×1080 FHD resolution, displays up to 16.7M colors (8-bit).
• Positioning: CID (Car Information Display) products variant with exceptional 4000:1 contrast ratio and ultra-wide viewing angles.

4. Technical Comparison & Selection Guidelines

Selection Guide:

• For High Ambient Light/Industrial: Choose LSC215I04-L-V1 (500 nits) or LS215I04-L-V1 (500 nits variant)
• For Office/Monitor Use: Choose LS215I03-L-V1 (IPS) or LS215I04-L-V1 (230-250 nits)
• For Best Color Accuracy: Choose LSL215I01-L-V1 (8-bit native) or LS215I02-L-V1 (6-bit+FRC)
• For Automotive/CID Applications: Choose LS2145I01-L-V1 (4000:1 contrast)
• For General Purpose/Value: Choose LS215I04-L-V1 platform with appropriate brightness
• For Wide Viewing Angles: Choose LS215I03-L-V1 (IPS) or LS2145I01-L-V1 (178°)

5. Mechanical & Electrical Commonality

Shared Mechanical Specifications:

• Typical Outline Dimensions: ~495.6mm (H) × ~292.2mm (V) × ~9.5mm (D)
• Active Area Variations:
  • 478.656 × 260.28 mm (LSC215I04-L-V1)
  • 476.064 × 267.786 mm (LS215I02-L-V1)
  • 476.64 × 268.11 mm (LSL215I01-L-V1, LS215I04-L-V1 230-250nits)
• Pixel Pitch: ~0.08275mm (H) × ~0.24825mm (V)
• Weight: Typically TBD (to be determined) or ~0.4kg range

Interface Protocols:

• Primary Interface: LVDS (Dual channel) for all models
• Signal Mode: DE (Data Enable) Mode - simplifies timing by eliminating separate HSYNC/VSYNC signals
• Connector Types: 30-pin connectors, with specific models using:
  • P-TWO AL230F-A0G1D-P
  • STM MSCKT2407P30HB
  • Mating with JAE FI-X30HL (Locked Type)

Backlight Technology:

• All models use LED backlight
• LS215I03-L-V1 specifically mentions "without LED driver" - requires external driver
• Typical power consumption for backlight: ~9.86W @ 50mA (LS215I02-L-V1)

Block Diagram Architecture (Common):

LVDS Input → Connector → LVDS Receiver → Timing Controller → Source Driver → TFT Panel
                                     ↓
                              Power Circuit → DC/DC Converter
                                     ↓
                              Gate Driver (GOA)

6. Application Matrix

7. Specialized Features & Technologies

HADs Technology: Mentioned in LSC215I04-L-V1 and LS215I04-L-V1 specifications

• Purpose: High display quality technology
• Likely Function: Improves viewing angles, contrast, or color performance

DE (Data Enable) Only Mode: Common across multiple models

• Advantage: Simplifies interface timing by using Data Enable signal instead of separate HSYNC/VSYNC
• Compatibility: Works with modern graphics controllers that support DE mode

Anti-Glare Surface Treatments:

• AG25%: 25% haze anti-glare coating (LS215I04-L-V1 230-250nits variant)
• 3H Hardness: Scratch-resistant surface
• Benefits: Reduces reflections, improves readability in bright environments

RoHS Compliance: All models are RoHS compliant

• Importance: Meets environmental regulations for hazardous substance restrictions

Open Cell References:

• PN215CT01-1: Referenced in LS215I04-L-V1 (230-250nits) document
• T215HVN01.1: Referenced in LSL215I01-L-V1 document
• CSOT open cell: Mentioned in LS215I03-L-V1 document

Conclusion: The LESSON 21.5-inch FHD series offers one of the most comprehensive portfolios for mid-size displays, covering applications from industrial control to consumer monitors. The series' strength lies in its application-specific optimization - whether it's high brightness for factories, IPS technology for offices, ultra-high contrast for automotive, or 8-bit color for professional use. The LS215I04-L-V1 platform stands out as particularly versatile, available in multiple brightness grades to suit different environments and budgets.

Market Positioning: This series competes in the highly popular 21.5-22 inch monitor segment, offering both cost-effective solutions (230-250 nits variants) and specialized high-performance options (500 nits, 4000:1 contrast). The consistent use of LVDS interface ensures compatibility with a wide range of controller boards, while DE mode simplifies system integration.

Final Recommendation: For new designs, evaluate the specific environmental conditions and user requirements:

• Bright environments: ≥300 nits models
• Color-critical applications: 8-bit models (LSL215I01-L-V1)
• Wide viewing needs: IPS (LS215I03-L-V1) or 178° models (LS2145I01-L-V1)
• Cost-sensitive projects: LS215I04-L-V1 (230-250 nits)

Final Disclaimer: This summary is synthesized from multiple document fragments. For final design and procurement, obtain the full official specification PDF for the specific model from LESSON Smart Display Technology Co., Ltd. Specifications like power sequences, timing diagrams, reliability tests, and exact mechanical tolerances are critical for successful integration and must be verified from official documents.