Sistema de cámara de marcha atrás con LCD TFT de 10,25″ integrado en el vehículo

Project Overview

In response to rising safety standards in automotive markets, we engineered a tft lcd reversing camera solution featuring a 14″ automotive-grade display. This display is capable of receiving and presenting four separate camera feeds simultaneously—ideal for rear and side monitoring in commercial vehicles, buses, or heavy machinery.

Technical Challenge

• Formato de visualización: Ultra-wide 1920×720 resolution (24:9 aspect ratio) to fit split-screen layouts.
• Environmental Specs: Mechanically robust and thin (1.08 mm panel, PCBA thickness ≤ 3.2 mm) for dashboard integration.
• Visual Performance: High NTSC ≥ 70% color gamut and 8-bit (16.7 million colors) fidelity for clear, true-to-life visuals.
• System Compatibility: Normally-black TFT mode preferred for power efficiency and high contrast in both day and low-light driving conditions.

Key Display Specifications

Engineering Approach

1. Panel Selection & Validation
   The horizontally elongated TFT panel provides an ideal canvas for quad-camera split display, reducing the need for optical distortion or complex remapping.
2. Mechanical Integration
   Adhering to a slim profile (1.08 mm panel thickness, ≤ 3.2 mm total with PCBA), the module was tailored for flush mounting behind dashboard styling bezels.
3. Electrical & Video Interface
   We engineered a robust video pipeline accepting RTSP/NTSC composite streams from four camera inputs, then processed via our display controller onto the TFT panel.
4. Optical Quality Tuning
   Gamma calibration and NTSC color tuning were applied during production to ensure consistency, color fidelity, and visibility across high-transmission automotive-grade optical films.

System Architecture & Integration

To ensure seamless camera visualization, the system was designed with the following layered architecture:

• Input Layer
  Four analog or digital camera feeds, compatible with NTSC or CVBS signals, routed to an onboard AHD decoder or external ADAS processor.
• Processing Layer
  Video streams synchronized and formatted by a custom video stitching or switching IC, depending on the selected view mode (quad-split, full-screen, or dual split).
• Display Output Layer
  Processed image rendered directly to the 14″ tft lcd reversing camera module via RGB or LVDS interface, depending on client ECU architecture.
• Control Interface
  Touch buttons or steering wheel-mounted triggers used to toggle views, initiate zoom, or enable parking guidelines overlay.

The integration workflow considered thermal dissipation, shielding for EMI/EMC robustness, and vibration-resistant FPC mounting.

User Experience Enhancements

The ultra-wide resolution and 70%+ NTSC color performance offer a clear advantage in real-world use:

• Improved Situational Awareness
  The 1920×720 resolution supports real-time viewing of 4 cameras without downscaling, offering drivers precise distance judgment and object recognition.
• Low-Reflection Display Performance
  The normally black TFT mode reduces ambient glare, offering strong visibility during night driving or tunnel entry conditions.
• Instant Wake & Response Time
  Optimized driver ICs ensure sub-100ms screen wake and video display after reverse gear activation.
• Flexible Mounting Options
  Due to its slim form factor and custom PCBA layout, the module supports horizontal or angled integration within dashboard, center console, or A-pillar structures.

Environmental Reliability

The display solution passed multiple automotive-grade validations, including:

• Wide Temperature Operation: -30 °C to +85 °C
• ESD Protection: 8kV air / 4kV contact discharge
• Vibration Testing: Compliant with ISO 16750-3 standards
• UV and Humidity Resistance: Enhanced polarizer durability

Para los clientes OEM que requieren una mayor protección IP o un bonding, también ofrecemos de manera opcional unión óptica, un revestimiento superficial antirreflejos,y impresión personalizada de la lente de cobertura para branding y rendimiento antirreflejante.

Resultados Comerciales

Este tft lcd reversing camera el módulo ahora está integrado en una plataforma en curso para vehículos de flota en el Sudeste Asiático. Los aspectos más destacados incluyen:

• Reducción del time-to-market mediante la integración modular de PCBA y panel.
• Transición rentable de un diseño de 2 cámaras a 4 cámaras.
• Mayor confianza del usuario final y cumplimiento normativo en la visibilidad trasera.

El éxito de este proyecto nos ha permitido replicar plataformas similares para furgonetas de reparto eléctricas, vehículos de logística urbana de baja velocidad y kits de accesorios automotrices para el mercado de reposición.