QB55B

What the Samsung QB55B is designed to do

The Samsung QB55B is a 55-inch signage display from the QBB series, made for organisations that show content on screens through working hours, including meeting rooms, lobbies, corridors and retail floors. It uses a VA panel with a 3,840 x 2,160 resolution and a 0.315 mm pixel pitch, so text and fine graphics stay sharp at close viewing distances.

Typical brightness is 350 nit and the contrast ratio is listed at 4,000:1, which produces deep blacks in rooms with controlled lighting. Viewing angles are 178 degrees horizontally and vertically, so people seated at the edges of a room still see a readable picture. The specification also lists 16/7 operation support, which matters for screens that run through the day rather than for occasional presentations.

Picture processing and day-to-day features

The Quantum Processor 4K handles video scaling. When lower-resolution footage such as older HD clips or camera feeds appears in the same playlist as UHD material, the processor upscales it to UHD level so the screen looks consistent. Custom Home lets administrators lock meeting room settings so users cannot change them between sessions, which helps a multi-room office keep every display set the same way. Auto Level adjusts content automatically when the panel is rotated between portrait and landscape. Professional modes include DICOM Simulation Mode, which the manufacturer says meets DICOM's full grayscale standard for teams that display medical images.

Connectivity, power and physical specifications

• Three HDMI inputs, HDMI version 2 with HDCP 2.2 support
• Two USB ports, RJ45, RS232 in and out, and an IR input
• Stereo mini jack audio output, plus Wi-Fi and Bluetooth
• Power supply rated AC 100 to 240 V at 50/60 Hz
• 143 W listed in on mode and 0.5 W in sleep mode
• Set size 1235.1 x 707.9 x 46.3 mm, weight 18.1 kg
• VESA 200 x 200 mm mount, 9.2 mm side bezels and 11.2 mm bottom bezel

All terminals face outwards, so the panel can sit flush against a wall. The unit runs Tizen 6.5 with 8 GB of flash memory and carries an energy efficiency class A rating.

Where it fits in Qatar

In West Bay or Msheireb, a corporate lobby might use a 55-inch screen for welcome messages, wayfinding and visitor information. A private school in Al Wakrah fitting out new corridors could install one unit per floor to show timetables and announcements in a consistent format. In Lusail or Al Sadd, a clinic reception could display queue information and health guidance in an air-conditioned waiting area. Where screens are placed beside windows, the sunlight glare and heat should be checked in advance.

The listed operating range is 0 to 40 degrees Celsius with 10 to 80 percent humidity, non-condensing. Doha summers can exceed 45 degrees Celsius, so the QB55B should be placed in an air-conditioned indoor space and not in outdoor or unconditioned areas. Confirm the environment with the SmartRooms Qatar team if the location is unusual.

What to plan before ordering

At 18.1 kg, the display needs a solid wall or a wall mount rated for its weight. The manufacturer lists a wall mount (WMN4070SG) and a stand (STN-L4355G) as optional accessories. SmartRooms Qatar offers a free site survey, which is the right point to check wall construction, cable routes and the position of the nearest power socket, and to confirm which mounting option suits each location.

Request a quote from SmartRooms Qatar to confirm quantities, accessories and installation requirements for your site.