The Sharp/AVC Group LQ104V1DG21 is a 10.4-inch a-Si TFT-LCD module engineered for industrial control systems, HMI panels, and legacy equipment replacement. This VGA-resolution display delivers 350 cd/m² brightness with a 300:1 contrast ratio and integrates dual CCFL backlights with built-in inverter, rated for 50,000 hours minimum lamp life. Parallel RGB interface, low-voltage operation, and antiglare hard-coated surface make it suitable for mission-critical instrumentation requiring long-term reliability.
Technical Specifications
Display Characteristics
• Screen size: 10.4 inches diagonal
• Resolution: 640(RGB) × 480 pixels (VGA), 76 PPI
• Display type: a-Si TFT-LCD, TN mode, normally white, transmissive
• Color depth: 262,144 colors (6-bit per color)
• Active area: 211.2(W) × 158.4(H) mm
• Pixel pitch: 0.330 × 0.330 mm (W × H)
• Aspect ratio: 4:3
• Surface treatment: Antiglare, hard coating (3H), antireflection
Optical Performance
• Brightness: 350 cd/m² (typical)
• Contrast ratio: 300:1 (typical)
• Response time: 20/40 ms (Tr/Td, typical)
• Viewing angle: 70°/70°/40°/70° (CR ≥ 10, typical)
• Good view direction: 6 o’clock
• Color temperature: 6485K
Electrical & Power
• Supply voltage: +3.0V to +5.5V (typical +3.3V/+5.0V)
• Operating current: 180 mA (typical at Vcc = 3.3V)
• Total power consumption: 6.4W (typical)
• Logic voltage: VIL ≤ 0.3VCC; 0.7VCC ≤ VIH
Interface
• Signal input: Parallel RGB, 1 channel, 6-bit
• Connector: 31-pin
• Timing signals: Four timing signals
Backlight System
• Lamp type: CCFL (cold cathode fluorescent), 2 units
• Backlight configuration: Edge light (top and bottom)
• Lamp life: 50,000 hours minimum
• Lamp voltage: 467V (typical); turn-on 950/1500V max
• Lamp current: 2.0/6.0/6.5 mA (min/typ/max)
• Lamp frequency: 20/35/60 kHz (min/typ/max)
• Lamp power: 5.6W (typical)
• Inverter: Integrated
Physical
• Overall dimensions: 265(W) × 195(H) × 11.5(D) mm maximum
• Weight: 700g maximum
• Mounting: Face-mounted via bezel holes (2-Φ3.4, 2-R1.7×4.4)
– Key Features
• Integrated dual-lamp CCFL backlight with built-in inverter
• Antiglare hard-coated surface for harsh industrial environments
• Low-voltage DC supply (3.3V/5.0V) with minimal current draw
• Standard VGA resolution and parallel RGB interface for legacy system integration
• Compact 11.5 mm profile enables space-constrained panel mounting
• 50,000-hour lamp life supports extended mission cycles
– Typical Applications
• Industrial process control terminals
• Legacy HMI replacement in manufacturing equipment
• Instrumentation and test systems requiring VGA resolution
• Capital equipment retrofits and modernization projects
• Transportation and logistics control panels
– Compatibility & Integration
The parallel RGB interface with four timing signals accommodates standard industrial controller outputs. Low supply voltage tolerance and integrated backlight simplify power supply design. Face-mounting holes enable direct bezel integration into existing panel cutouts.
