Qiangli Q3.91 Pro - P3.91 Indoor GOB LED Module

The Qiangli Q3.91 Pro GOB is a 250 x 250 mm indoor full-colour LED module built on 1R1G1B 2020 packaged LEDs at a 3.9 mm pixel pitch, finished with a GOB (glue on board) resin layer that seals the lamp surface against moisture, dust and knocks. Each module carries 64 x 64 pixels for a density of 65536 dots/m2, with the light and driver integrated on one board and 1/16 constant-current scanning. A 6000 Hz refresh rate with 13-14 bit greyscale per colour gives a camera-safe, flicker-free picture across 4398 billion colours, and low 21 W module power keeps running costs down. It suits retail and showroom walls, conference and control rooms, studio backdrops, indoor rental stages and any screen viewed from around 7 metres and beyond.

• Specification Model: DM3.9-16S-2020 soft connection | Pixel Composition: 1R1G1B GOB 2020

• Pixel Pitch: 3.9 mm | Module Resolution: 64 x 64 pixels (4096 dots)

• Pixel Density: 65536 dots/m2 | Module Size: 250 x 250 x 17 mm

• Module Weight: 0.55 kg | Input Voltage: DC 4.5 +/-0.1 V

• Max Current: 4.5 A | Module Power: 21 W max

• Structure: light and driver in one, GOB encapsulated soft-connection module

• Brightness: 600 cd/m2 | Brightness Uniformity: above 0.95

• Viewing Angle: 140 degrees +/-10 horizontal | 130 degrees +/-10 vertical

• Best Viewing Distance: 7 m and above | Display Colours: 4398 billion

• Greyscale: 13-14 bit each for red, green and blue

• Refresh Rate: 6000 Hz | Frame Change Frequency: 60 fps and above

• Driving Method: constant current, 1/16 scanning | Dimming: 256 levels manual or automatic

• Operating Temperature: -20 to 40 degrees C | Operating Humidity: 10 to 65 percent RH

• Mean Time Between Failures: 5000 hours and above

• Screen Flatness: under 1 mm per square metre horizontal and vertical

• GOB Surface: sealed against moisture, dust and impact, wipe-clean and anti-collision

• Protection Features: over-temperature, overload, power-down, over-current and over-voltage protection (optional)

• Signal Interface: HUB75E, 16-pin (input only, no output interface on this module)

• Data Signals: RD1/GD1/BD1 and RD2/GD2/BD2 | Row Control: A, B, C, D, E

• Control Signals: CLK clock, LAT data lock, OE enable

• Supported Input Sources: DVI, VGA, HDMI, DP, composite video, S-VIDEO and YPbPr

• Manufacturer: Xiamen Qiangli Jucai Opto-Electronic Technology Co., Ltd.