Samsung QB75C 75" UHD 4K HDR Commercial Monitor
PRODUCT DESCRIPTION
Samsung QB75C 75" UHD 4K Crystal Signage Display (LH75QBCEBGCXXS) - Local Warranty
75 Inches for Atriums, Showrooms and Large-Format Wayfinding
A 75-inch panel earns its place where the viewing distance runs past eight metres: a building atrium, a showroom floor, an airport-style wayfinding wall or an auditorium foyer. The QB75C delivers 3,840 x 2,160 at a 0.429 mm pixel pitch, which means it still holds detail for someone reading a directory at close range while carrying a headline image across a large volume. A 4,000:1 contrast ratio and 350 nit output keep that image solid under the mixed daylight and downlight of a glazed lobby.
28.5 mm Deep at 75 Inches, with a 13.4 mm Even Bezel
Large-format panels usually force a deep recess or a heavy bracket. At 28.5 mm the QB75C is the thinnest of Samsung's UHD signage line, and the 13.4 mm bezel is even on all four sides, so it mounts flush and looks correct in portrait as well as landscape. The set weighs 33.4 kg on a 400 x 400 VESA pattern - a standard commercial fixing, but one that at this size wants a proper wall survey and a two-person install, which we will factor into any quotation.
One Panel, No Player, Managed from a Browser
Tizen 7.0 with 8 GB of onboard storage runs the content directly on the display, so a 75-inch feature screen does not drag a media player, a bracket for that player and a second power outlet behind it. Samsung VXT schedules and versions content across every site from the cloud, and SmartThings Pro handles power scheduling, status monitoring and firmware from the same console. For a large installation that is often high up or behind a fascia, remote management is not a convenience - it is what keeps the screen serviceable.
Three HDMI 2.0 Inputs, RS232C Control and Dual-Band Wi-Fi
Three HDMI 2.0 inputs let a signage feed, a presentation source and a live camera or room system all stay connected, which matters on a screen this size because reaching the back of it is rarely simple. Two USB 2.0 ports, RJ45, dual-band Wi-Fi and Bluetooth cover network and local content, while RS232C in and out plus IR in give an AV integrator the wired control path a room controller or building management system expects. The panel draws 214.5 W in typical on-mode operation and 0.5 W asleep.
Samsung QB75C Datasheet — Technical Specifications
General
| Product | Samsung QB75C Crystal UHD Signage |
| Part Number (SKU) | LH75QBCEBGCXXS |
| Display Type | Crystal UHD commercial signage display |
| Operating Time | 16 hours a day, 7 days a week (16/7) |
| Platform | Tizen 7.0 |
| Local Warranty (Singapore) | Supplied by SourceIT with GST invoice |
Display
| Screen Size | 74.5" (75" class) |
| Panel Type | VA |
| Resolution | 3,840 x 2,160 (UHD 4K, 16:9) |
| Brightness | 350 nit (typical) |
| Contrast Ratio | 4,000:1 (typical) |
| Response Time | 8 ms |
| Colour Gamut | NTSC 72% |
| Pixel Pitch | 0.429 x 0.429 mm |
| Bezel Width | 13.4 mm, even on all four sides |
| Orientation | Landscape and portrait |
Video & Audio
| HDMI Input | HDMI 2.0, up to 3,840 x 2,160 |
| Built-in Speakers | 10 W x 2 (2 channel) |
| Audio Output | Stereo mini jack |
Smart Platform & Management
| Operating System | Tizen 7.0 |
| Processor | CA53 1.3 GHz quad-core |
| Internal Storage | 8 GB (3 GB available to content) |
| Content Management | Samsung VXT cloud CMS / MagicINFO ready |
| Device Management | SmartThings Pro |
| Colour Matching | Smart Calibration |
Connectivity
| HDMI | 3 x HDMI 2.0 |
| USB | 2 x USB 2.0 |
| Network | RJ45 (LAN) |
| Wi-Fi | Dual band, 2.4 GHz and 5 GHz |
| Bluetooth | Yes |
| External Control | RS232C (in / out) |
| Infrared | IR in |
Physical & Environmental
| Set Dimensions (W x H x D) | 1,682.3 x 960.4 x 28.5 mm |
| Depth | 28.5 mm |
| Set Weight | 33.4 kg |
| VESA Mount Pattern | 400 x 400 mm |
| Operating Temperature | 0 °C to 40 °C |
| Operating Humidity | 10% to 80%, non-condensing |
Power
| Power Supply | AC 100-240 V, 50/60 Hz |
| Power Consumption (on mode, typical) | 214.5 W |
| Power Consumption (sleep mode) | 0.5 W |
| Energy Certification | ENERGY STAR 8.0, EPEAT |
Specifications are taken from Samsung's published product data for this model. Where Samsung does not publish a figure for this exact model it has been left out rather than estimated.
Compatibility & Installation
Mounting and orientation
The QB75C uses a 400 x 400 mm VESA mount pattern with the fixing holes centred on the back of the set, and the chassis is 28.5 mm deep so it sits close to the wall on a slim-fit bracket. Landscape and portrait are both supported and the bezel is even on all four sides, so a rotated installation looks intentional. Set weight is 33.4 kg - check that any bracket you already own is rated for that load and, if you are rotating the screen, for portrait use. Samsung's WMN-B50SC slim-fit wall mount and STN-L6585C stand are available separately and we can quote either with the display.
What it connects to
Three HDMI 2.0 inputs accept laptops, room systems, video conferencing codecs, cameras, Blu-ray and set-top sources at up to 3,840 x 2,160. Two USB 2.0 ports take local media for playback straight from a drive. Audio leaves through a stereo mini jack to a sound bar or a ceiling system where the 10 W x 2 built-in speakers are not enough for the room. For wired control by an AV integrator or a building management system there is RS232C in and out plus an IR input for a repeater, which is what you need when the panel is mounted behind a fascia.
Network and content management
The display runs Tizen 7.0 with 8 GB of onboard storage, so scheduled content plays without an external media player. Connect over RJ45 or dual-band Wi-Fi at 2.4 GHz or 5 GHz. Samsung VXT is the current cloud CMS for scheduling, playlists and multi-site publishing, and the panel is ready for a MagicINFO estate as well. SmartThings Pro covers the device side: remote power scheduling, on and off status, and firmware oversight across the fleet from one console. Smart Calibration lets you match colour across several panels from a mobile device.
Other Samsung QBC displays it pairs with
QBC panels share the same platform, so a mixed-size estate is managed as one fleet from the same console. A counter or kiosk position usually takes the QB24C, a shelf edge or door plate the QB13C, and a lobby or feature wall one of the larger sizes. Ask us and we will map the sizes to your floor plan.
Package Contents & Samsung QBC Range
In the box
- Quick setup guide
- Warranty card and regulatory guide
- Power cord
- RS232C (IN) gender adapter
- Remote controller
- Batteries for the remote controller
Package contents follow Samsung's product data for this model; items not listed by Samsung are not claimed here.
Samsung QBC range
| Model | Size |
| QB13C | 13" |
| QB24C | 24" |
| QB43C | 43" |
| QB50C | 50" |
| QB55C | 55" |
| QB65C | 65" |
| QB75C (this listing) | 75" |
| QB85C | 85" |
Datasheet & Downloads
SourceIT can email the current data sheet revision for this model together with a quotation. Tell us the site, the mounting position and how many units you need and we will send the specification and pricing in one reply.
Frequently Asked Questions — Samsung QB75C
Is the QB75C meant to run all day, every day?
Samsung rates the QB75C for 16 hours a day, seven days a week. That covers the opening hours of a retail unit, a lobby, a clinic or a corporate floor with margin. It is not a 24/7 rating, so for a control room, a transport hub or any site that never switches the screen off, ask us about Samsung's 24/7-rated signage series instead - we would rather put the right panel on the wall than have a 16/7 display run outside its specification.
Do I need a separate media player with it?
No. The QB75C runs Tizen 7.0 on a CA53 1.3 GHz quad-core processor with 8 GB of internal storage, so it plays scheduled content by itself. Samsung VXT handles cloud scheduling across sites, and it works on a MagicINFO estate as well. You would only add an external player if you need an application the platform does not run, such as a bespoke interactive front end.
Can it be mounted in portrait?
Yes. Portrait orientation is supported, and the bezel is even on all four sides so it looks correct rotated. It uses a 400 x 400 mm VESA pattern; make sure the bracket you choose is rated for portrait use and for the 33.4 kg set weight, as not every landscape bracket is.
Is 350 nit bright enough for my space?
350 nit is specified for indoor commercial lighting - malls, lobbies, receptions, showrooms, meeting rooms and hospitality areas. It is not specified for a window position facing direct sunlight, where reflected daylight will beat it. If the screen faces a shopfront or a fully glazed facade, tell us the orientation and we will quote a higher-brightness Samsung series instead.
What do the letters in LH75QBCEBGCXXS actually mean?
Reading it Samsung's way: LH marks a commercial display, the two digits are the screen size, QBC is the series, and the trailing letters identify the panel variant and the regional model. XXS is the code for Singapore stock, which is what matters for local warranty and support - a set carried in from another market will carry that market's code and its warranty stays there.
How many sources can I leave plugged in?
Three, on HDMI 2.0, plus two USB 2.0 ports for local media. Network is RJ45 or dual-band Wi-Fi, and there is Bluetooth as well. For integrator control there is RS232C in and out and an IR input, so a room controller or building management system has a wired path to the display.
How does it compare with the QB85C?
Same panel technology, same Tizen 7.0 platform, same 350 nit and 4,000:1 specification, same port set - the difference is diagonal, physical size, weight and power draw. Choose on viewing distance and available wall first. The QB75C draws 214.5 W typical in on mode; the larger model draws more, which is worth checking against the circuit if you are hanging several.
What warranty comes with it in Singapore?
Every QB75C we sell carries local Singapore warranty and ships with a GST invoice. That means support is handled here rather than through a grey-import channel, and your finance team gets a compliant tax invoice for the purchase.
