LG 55MH5K: 55-Inch 4K IPS Surgical Monitor
Authorized LG surgical display supplier. The 55MH5K is a large-format medical imaging monitor purpose-built for high-acuity OR environments, solving three persistent problems: consumer displays that lack medical certifications, standard monitors that fail without a failover path, and complex multi-cable 4K distribution. It delivers team-wide surgical visualization as a complete, certified imaging solution.
Core technology: 55-inch IPS panel with 4K UHD resolution, 680 cd/m2 peak brightness, and DCI-P3 86% wide color gamut, delivering the image fidelity that large-format surgical visualization demands. A single 12G-SDI cable transports native 4K60. The built-in automatic failover input switch detects signal loss and instantly switches to a backup source with no manual intervention, making it a complete large-format imaging solution for operating rooms, hybrid ORs, and endoscopy suites alike.
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Wide-View IPS, Direct Bonding Glass & 12G-SDI
Three technologies differentiate the 55MH5K from standard large-format displays and consumer-grade monitors. Each is summarized below, with full technical data inside the expandable sections.
Panel: 55-inch IPS, 3840×2160 (4K UHD), 16:9
Brightness (typical): 540 cd/m2
Brightness (peak): 680 cd/m2
Contrast Ratio: 1,100:1 (typical)
Color Gamut: DCI-P3 86% (CIE1976)
HDR: HDR10, HDR Effect
DICOM: Yes – brightness stabilized at 400 cd/m2 (DICOM standard 350 cd/m2)
Response Time: 8ms (GtG)
Viewing Angle: 178 degrees H / 178 degrees V
Surface Treatment: Direct bonding glass (3.1mm) fills the air gap between the LCD and protective glass, eliminating internal reflections critical for accurate imaging in brightly lit surgical environments.
Anti-Reflection (AR): Reduces ambient light reflections from OR ceiling fixtures.
Anti-Fingerprint (AF): Resists smudges and allows cleaning with OR-grade disinfectants.
IP45 (front): Dust-tight and water-jet protected.
IP32 (rear): Protected against dripping water.
Vandal-proof: Reinforced construction for high-traffic clinical environments.
How the 55MH5K compares against a standard large-format OR display:
The 55MH5K continuously monitors signal integrity on the active input and automatically switches to a designated backup source across HDMI, SDI, DVI, or DisplayPort – with no manual intervention required. When the primary signal is restored, the display automatically switches back. In a live surgical environment, this eliminates blank-screen events and provides a critical redundancy layer during high-stakes procedures.
Full Technical Specifications
Complete reference data for procurement, RFP, and biomedical review. This is the full specification set required by hospital purchasing teams, imaging technology managers, and biomedical engineers. Expand each category.
| Resolution | 4K UHD (3,840 x 2,160) |
| Panel Type | IPS |
| Screen Size / Ratio | 55-inch (16:9) |
| Color Gamut | DCI-P3 86% (CIE1976) |
| Contrast Ratio (Typ.) | 1,100:1 |
| Response Time | 8ms (GtG) |
| Viewing Angle (CR>=10) | 178 degrees (H) / 178 degrees (V) |
| Brightness (Typ.) | 540 cd/m2 |
| Peak Brightness | 680 cd/m2 |
| Surface Treatment | Direct bonding glass (3.1mm) with AR and AF coatings |
| Backlight Technology | IPS LED |
| Weight (without stand) | 34.8 kg |
| Dimensions (W x H x D) | 1283.4 x 768.5 x 68.3 mm |
| IP Rating (Front) | IP45 |
| IP Rating (Rear) | IP32 |
| Impact Protection | Vandal-proof |
| VESA Wall Mount | 200×200 mm / 300×300 mm |
| Input Terminals | HDMI 2.0 x1, DisplayPort 1.2 x1, SDI (12G/3G, SFP) x4, DVI-D x1 |
| Output Terminals | SDI (12G/3G) x4 loop-through, DVI-D x1 |
| USB | USB 3.0 |
| Control | RS-232C |
| Power Consumption (Max.) | 180W |
| Power Supply | Built-in |
| DICOM Compliant | Yes (brightness stabilized at 400 cd/m2, DICOM standard 350 cd/m2) |
| HDR | HDR10, HDR Effect |
| PBP / PIP | Up to 4PBP, PIP |
| Screen Flip | Mirror Mode and Rotation Mode |
| Failover Input Switch | Yes – automatic switch with restore to main |
| Hot Keys | 2 programmable quick-access presets |
Clinical Applications
Deployed across a full spectrum of large-format surgical visualization environments, wherever team-wide image clarity directly affects clinical outcomes.
The 55-inch 4K canvas gives the entire surgical team a clear view of endoscopic feeds via 12G-SDI, with single-cable simplicity from laparoscopic tower to display.
Failover input switching and IP45-rated disinfection keep imaging uninterrupted during interventional cardiology and hybrid cardiac procedures.
HDR10 and 680 cd/m2 peak brightness reveal subtle mucosal details across the large 55-inch IPS panel from any position in the endoscopy suite.
4PBP multi-view displays up to four independent sources simultaneously, giving the IR team fluoroscopy, ultrasound, and reference imaging on one screen.
The 178-degree wide viewing angle and 55-inch format allow residents and observers to follow the procedure clearly from any angle in the OR.
Display camera feed, PACS images, vital signs, and navigational overlays simultaneously with 4PBP, reducing the need for multiple displays in the OR.
12G-SDI, Failover Switch & Multi-View
A complete large-format 4K surgical AV integration platform, engineered to slot into existing OR AV infrastructure including PACS systems, laparoscopic towers, cath lab AV routing, and hybrid OR environments. Expanded details on inputs, outputs, multi-view modes, failover logic, and mounting are in the expandable sections below.
HDMI 2.0 x1 – cameras, PC, image management systems
DisplayPort 1.2 x1 – high-frame-rate 4K sources
12G/3G-SDI x4 (SFP) – 12G-SDI carries native 4K at 60fps over one coaxial cable (vs. four cables for 3G-SDI). Up to 50m via BELDEN 1694A or 70m via CANARE UHD 5.5C. Ideal for laparoscopic tower and OR AV integration
DVI-D x1 (In/Out) – legacy system compatibility
USB 3.0 – firmware updates and peripherals
RS-232C – external system control integration
SDI Loop-Through (12G/3G, x4): Pass each SDI input to recording systems, PACS, or additional monitors without signal loss.
RS-232C Control: Integrate the 55MH5K into AV control systems for automated input switching and display management.
2 Hot Keys: Assign quick-access presets for common input or display configurations.
4PBP: Display up to 4 independent sources side by side on the 55-inch canvas.
PIP: Overlay a secondary source in a resizable window.
Mirror Mode: Flip the display horizontally for mirrored viewing configurations.
Rotation Mode: Rotate output for non-standard mounting orientations.
The 55MH5K monitors signal integrity on the active input and automatically switches to a backup source across HDMI, SDI, DVI, or DisplayPort – without manual intervention. When the primary signal is restored, the display automatically switches back. In a live surgical environment, this is a critical redundancy layer that eliminates blank-screen events during procedures.
IP45 (front): Dust-tight and water-jet protected. Compatible with OR-grade disinfectants.
IP32 (rear): Protected against dripping water and solid particles.
Vandal-proof: Reinforced construction for high-traffic clinical environments.
Weight: 34.8 kg – compatible with most surgical boom arms and ceiling pendant systems.
Dimensions: 1283.4 x 768.5 x 68.3 mm
VESA: 200×200 mm and 300×300 mm supported.
Regulatory Compliance & Safety
ISO 13485 manufacturing, FDA Class I registration, and CE MDR compliance. Medical Outfitters is an ISO 13485:2016-certified supplier of medical imaging equipment, meaning every unit ships through a documented, audited quality management system. Full compliance documentation is available in the expandable sections below.
FDA Class I: Registered as a Class I medical device with the U.S. FDA. Suitable for use in U.S. hospital ORs and clinical environments.
CE MDR: Compliant with EU Medical Device Regulation (2017/745).
ISO 13485: Manufactured under ISO 13485 quality standards. Medical Outfitters is independently ISO 13485:2016 certified as a supplier.
IEC 60601-1: General safety requirements for medical electrical equipment.
IEC 60601-1-2: EMC requirements – ensures the monitor does not interfere with other OR equipment.
cUL: UL Listed for the U.S. and Canada.
RoHS: Restriction of Hazardous Substances compliant.
REACH: EU REACH chemical regulation compliant.
WEEE: EU Waste Electrical and Electronic Equipment Directive compliant.
Compatibility & AV Integration Review
Provide your laparoscopic tower model, boom arm specs, SDI routing, and PACS system requirements. Our team confirms full compatibility with your existing OR infrastructure before your order ships.
Hospital Procurement & RFP Support
Volume pricing, technical documentation, and logistics coordination for multi-OR deployments. We support radiology equipment procurement teams, biomedical engineers, and hospital purchasing departments. Contact us directly for RFP packages.
Frequently Asked Questions
Quick answers to the most common purchase and technical questions about this large-format surgical display. Tap any question to expand.
The LG 55MH5K is a 55-inch 4K UHD IPS surgical display with 680 cd/m2 peak brightness, DCI-P3 86% color gamut, HDR10, 12G-SDI connectivity (4 in/4 out), automatic failover input switching, 4PBP/PIP multi-view, DICOM compliance, direct bonding glass with AR/AF coatings, and IP45/IP32 protection. FDA Class I registered and CE MDR compliant.
Pricing varies by quantity and installation scope. Medical Outfitters returns a quote within one business day. Submit a request online or call (305) 885-4045.
The large 55-inch canvas allows the entire surgical team to view the procedure clearly without crowding around a smaller monitor. It improves team collaboration, supports multi-source 4PBP layouts, and provides an immersive view of endoscopic, laparoscopic, and navigational feeds from any position in the OR.
Designate a primary and a backup input in the monitor settings. If the primary signal is lost, the 55MH5K automatically switches to the backup source across HDMI, SDI, DVI, or DisplayPort – without manual intervention. When the primary signal returns, the display automatically restores to the main source.
Yes. The LG 55MH5K is FDA Class I registered, CE MDR compliant, and meets IEC 60601-1 and IEC 60601-1-2 requirements for medical electrical devices.
Yes. DICOM compliance with brightness stabilized at 400 cd/m2 (DICOM standard 350 cd/m2) for calibrated diagnostic-quality viewing.
No. The 55MH5K is designed for boom arm, ceiling pendant, or wall mounting. VESA: 200×200 mm and 300×300 mm. Weight: 34.8 kg. Our team can advise on compatible mounting solutions.
Through Medical Outfitters Inc., ISO 13485:2016 certified, Miami, FL. Factory-new units with nationwide installation. Call (305) 885-4045 or request a quote online.
Compatible Equipment
Products commonly deployed alongside the LG 55MH5K in surgical environments – from companion displays to the C-arms that feed video directly into this monitor.
LG 27-Inch 4K Mini-LED Surgical Monitor
Companion scrub display – Same SDI platform – Mini-LED – IP45 – DICOM
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LG 31.5-Inch 4K Mini-LED Surgical Monitor
High-brightness companion display – 2000 cd/m2 peak – Clone Screen – DICOM
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Ziehm Vision FD Flat Detector C-Arm
Primary SDI video source – 12G-SDI output – Flat detector – Fluoroscopy
View ProductRequest a Quote Today
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