QB55N

Where the QB55N fits in a Qatar signage network

The QB55N is a 55-inch UHD 4K display sized for spaces where visitors stand a few metres away and read the content directly, such as a clinic reception in Al Sadd, a banking hall in West Bay or a corridor inside a building in Education City. Its 3,840 x 2,160 panel carries four times the pixels of a Full HD screen, so menus, timetables and room names stay sharp at close range.

Older HD clips can be shown full screen. The built-in processing converts content from any source toward UHD-level quality and sharpens text and fine detail, which helps a school or government office reuse existing material without rebuilding it.

Panel figures to check against your brief

• Contrast: 4,700:1 with a typical brightness rating of 350
• Viewing angle: 178 degrees horizontal and vertical, so staff and visitors see a similar image
• Response time: 8 ms typical on a 60Hz panel
• Colour gamut: 72%, with a non-glossy frame

Bezels measure 10.5 mm at the top and sides and 11.8 mm at the bottom, which matters when the screen sits in a reception wall or a row of identical units.

Built-in player, security and remote management

The MagicINFO S6 player runs inside the display on TIZEN OS, so playlists can run without a separate media box. Samsung KNOX provides three-layer protection and controls USB and network exchange through signage device management. That matters to IT teams who need to keep unmanaged USB sticks away from a screen that the public can see. Remote monitoring lets administrators diagnose irregularities from another location, and the unit offers Wi-Fi along with a wired RJ45 input.

Connectivity, control and power

Two HDMI inputs, one DVI input, two USB ports, an audio input and a stereo mini-jack audio output cover most media players and laptops. There is no DisplayPort or HDBaseT input and no video output, so a laptop with only DisplayPort needs an adapter, and the screen cannot pass a signal on to a second display. RS232 in and out and an IR input let building management systems or a remote control operate it. The power input is rated 100-240V at 50/60Hz, which includes Qatar's 240V, 50Hz mains. Rated consumption is 143 W in on mode and 0.5 W in sleep mode, and the energy efficiency grade is A. Confirm the power cord for BS 1363 (Type G) sockets when you request a quote.

Heat, dust and mounting in Qatar

The operating range is 0 to 40 degrees Celsius at 10 to 80% humidity, non-condensing. Summer temperatures in Doha can exceed 45 degrees Celsius, so place the QB55N in an air-conditioned lobby, office or classroom rather than a sun-facing or open position, and confirm the location with the SmartRooms Qatar team before quoting. The design is IP5x dust-validated, but the manufacturer states that operation is not guaranteed with certain dust types, such as metal dust. The set measures 1238.6 x 714.2 x 59.0 mm and weighs 17.4 kg, with a 200 x 200 mm VESA pattern. Samsung lists the WMN4070SE wall mount and STN-L4955H stand as optional accessories. Request a free site survey before fixing a panel of this weight to a wall.

Send your room list, mounting wall and cable route to SmartRooms Qatar and request a quote for the QB55N, whether you are fitting one reception screen or a row of identical displays for a school or office.