Most people start a large-display purchase by asking, "Which 110-inch panel is cheapest?" That is the wrong first question. At this size, the screen is only one line in a longer list: the room it goes into, the people who will watch and touch it, the path it must travel to reach the wall, the wall that must carry it, the sound that must fill the space, and the support you will need three years from now.

Get those pieces right and a large interactive display becomes the center of how a team or class works. Get them wrong and you end up with an expensive screen that is hard to read from the back row, awkward to write on, and impossible to hear in.

This guide walks through the decisions in the order they usually arise. It is written for procurement teams, IT and AV managers, system integrators, and distributors who need to specify and defend a large-format purchase.

A few honest starting points:

• Bigger is not always better. For a typical 6–12 person meeting room, a 75–86 inch display is simpler to install and better value. Panels of 98 inches and above pay off in boardrooms, training rooms, lecture halls, control rooms, and showrooms.
• 4K is necessary, but it is not a feature list. Resolution says nothing about touch quality, software, camera, microphones, or device management. Each needs its own evaluation.
• The diagonal is only a label. Large panels commonly come in 98, 105, and 110 inch versions, and their active area, weight, and outer dimensions differ. Always compare real specifications, not just the size name.

Qtenboard supplies 55–110 inch 4K interactive whiteboards with multi-touch, wireless casting, Android and Windows options, DMS remote management, and OEM/ODM support. We cover our own range near the end of this guide, but the framework below applies no matter which supplier you choose.

Use this table as a starting hypothesis, then test it against real measurements of your space.

Short version:

• Boardrooms for 12–20 people: 98–110 inches
• Training rooms for 15–30 people: 98–105 inches
• Halls above 20 people: 105–110 inches, or consider two screens
• Non-negotiables: native 4K, anti-glare, low-latency touch, wireless casting, conferencing compatibility, remote management
• Project-dependent extras: Windows OPS, AI meeting tools, custom UI, OEM/ODM, CKD/SKD

Where to jump in: Procurement teams should read the sizing, TCO, and supplier sections. IT/AV managers should focus on system, network, and audio planning. Integrators will care most about interfaces, mounting, and logistics. Distributors and brand partners should go straight to the OEM/ODM section.

• A long boardroom table with 12–20 seats
• Training rooms where 15–30 people must read small text and join exercises
• Lecture halls where the back row sits far from the screen
• Command or operations rooms running dense dashboards in multiple windows
• Showrooms where visual impact matters
• Collaboration spaces where several people write on the board at once

• Huddle rooms for 2–6 people
• Standard meeting rooms where everyone sits close to the table
• Mostly slide-based content viewed from a short distance

1. What is the farthest viewing distance in the room?
2. What is the smallest text people must be able to read?
3. How many windows or documents will be shown side by side?
4. How many people will write at the same time?

Write the answers down and let them drive the size. If the numbers point to a 98 inch or 110 inch panel, follow the numbers.

Remember that the diagonal does not tell you the usable area. Bezel width, aspect ratio, and overall dimensions differ between models. Compare active display area and physical footprint, not just the number in the product name.

For rough planning, a typical 16:9 panel is about 190 cm wide at 86", 217 cm at 98", 232 cm at 105", and 244 cm at 110". A common rule of thumb for reading detailed content is a viewing distance of roughly 1–2 times the screen width, so a 110-inch panel suits seating from about 2.4 to 4.9 meters. Treat this as a starting point and verify it with your real fonts and seating.

4K UHD means 3840 × 2160 pixels, about 8.3 million in total and four times the detail of 1080p. Spread across a 98–110 inch surface, the pixels are larger and sparser than on a small screen, which is exactly why 4K matters more here. It keeps spreadsheets, financial tables, CAD views, drawings, and side-by-side windows legible from a distance.

But there are limits:

• A 4K screen cannot invent detail that is not in a low-resolution file or a compressed video call.
• Not every "4K" label means the same thing.

Test with your own content, such as your spreadsheets, your drawings, and your video calls, instead of the supplier's demo reel.

Record the nearest and farthest seats, first-row distance, screen center height, seated and standing eye levels, table length, and total room depth. Layout matters just as much: boardroom tables, U-shapes, classroom rows, theater seating, and cluster tables all create different sight lines. A deep room with a center aisle may call for a higher mounting position; a wide, shallow room with tight rows may need 105 or 110 inches to protect the back seats.

• Usable wall width, excluding doors, windows, and columns
• Wall material and load capacity
• Panel outer dimensions including bezel
• Camera position and clearance
• Power and network outlet locations
• Furniture under the screen
• Ceiling lights, air-conditioning vents, and window glare

Large panels arrive in heavy crates, and the route from the truck to the wall is a real constraint. Check:

• Packaging dimensions and container loading
• Unloading equipment at the entrance
• Elevator size and door height
• Corridor width and turning radius
• Door width and height along the final route
• Floor load capacity

Measure the route before you order. A panel that cannot get through the door is an expensive lesson.

Verify native 4K, brightness, anti-glare treatment, reflection control, color uniformity, contrast, and 178° viewing angles. Large interactive panels commonly cite 350 cd/m² or higher brightness with an anti-glare surface; set your own minimums according to the room's actual lighting.

Check the technology (infrared, PCAP, or other), the number of touch points (20, 40, or 50), response time, writing latency, accuracy, palm rejection, and pen/finger/eraser recognition. Test multi-user writing on both Android and Windows, and pay special attention to touch at the screen edges, where large panels often perform worst. Vendors count touch points differently, so test the behavior you will actually rely on.

Note that 40–50 touch points describes the panel's capability, not a promise that 40–50 people can write comfortably at once.

Ask which Android version is installed, how Windows is supported, whether there is an OPS slot, and what CPU, RAM, and storage are fitted. Then test 4K interface smoothness, multitasking, browser performance, and Office file handling. Ask about the firmware update policy. "Supports Windows" is not a specification; put the exact configuration in your tender.

• Wireless: Windows, macOS, iOS, and Android casting; multi-device casting; split screen; guest mode; permission control
• Wired: HDMI in and out, USB-C, USB-A, LAN, Wi-Fi, Bluetooth, audio in/out, and RS-232 for integrator control systems

In a large room, check camera field of view, auto-framing, people tracking, and mounting height, and decide whether you need a PTZ camera. For audio, look at microphone pickup distance, array design, echo cancellation, and noise suppression, and whether ceiling or tabletop microphones are supported. For speakers, check output power and whether the back of the room can hear clearly.

Important: A large screen does not solve room audio. Bigger rooms usually need a separately designed microphone and speaker system so remote participants can follow every speaker.

Ask about the commercial-use rating, aging tests, power stability, touch glass durability, repair process, spare parts availability, firmware commitments, and warranty. For standardized fleets, also ask whether the panel size you chose will stay in production. A discontinued size can force you to redesign every room.

Installation is where large projects most often slip. A 98–110 inch panel is heavy and needs a rated mount and an experienced crew.

Wall mounting. Treat it as structural work. Confirm the VESA pattern, panel weight, wall type (concrete, brick, steel stud, wood), reinforcement plan, anchors, cable routing, and service clearance above and below. Align the screen center with the main viewers' eye line, adjusted for seating, standing positions, accessibility needs, and the touch zone.

Mobile trolley. If the panel must move between rooms, check the trolley's rated load and size range, caster locks, tip-over stability, movement path, floor surface and thresholds, cable safety, and screen-face protection.

Power and network. Plan voltage and plug type, a dedicated circuit, UPS or stabilizer needs, wired LAN, Wi-Fi coverage, VLAN isolation, firewall rules, a casting network, OTA/DMS access, and bandwidth for cameras and conferencing. A large interactive display is a network endpoint, so manage it like one.

Cabling. Account for HDMI, USB-C, USB touch-back, LAN, power, camera, audio, and control cables. Leave enough slack to pull the panel from the wall for service without unplugging everything.

Site survey. Before ordering, document room measurements, wall construction, the transport route, power and network points, lighting and reflection, camera view, audio coverage, mounting height, user workflows, and acceptance criteria. Use one set of written data for the spec, the quote, and the final test.

Acceptance testing. After installation, test 4K output, touch accuracy, multi-user writing, casting, audio and video, network connectivity, system configuration, installation safety, and appearance. Confirm user training and warranty documents. Resolve issues before signing the acceptance form.

Total cost = Panel + Mount or trolley + Installation + OPS/PC + Camera and audio + Network + Shipping + Support

Compare five-year cost, not the sticker price:

• Replacement value. One display can replace a projector, camera, microphone, and traditional whiteboard.
• Time savings. Rooms × sessions per week × minutes saved × attendee hourly cost.
• IT savings. Central management versus a technician visiting every room.
• Extra costs at this size. Freight, rigging, and professional installation.
• Volume effects. Per-unit costs generally fall on multi-room or multi-site orders.

As an illustration, imagine one training room used three times a week, with sessions that start fifteen minutes sooner thanks to a reliable large display. Over a year, the value of that recovered time can rival the hardware cost, before counting fewer support calls. Build your own numbers from your own room count, usage, and staff costs.

• Google EDLA certification for Android panels
• Microsoft Teams and Zoom certification for conferencing readiness
• Zero-trust security expectations and remote device management
• USB-C single-cable connections and AV-over-IP for simpler rooms
• AI meeting notes, noise reduction, and auto-framing cameras
• Standardized multi-room rollouts in place of one-off designs
• Energy and sustainability requirements in tenders
• Supply and lead-time visibility for large panels
• Tariffs, trade compliance, and rules of origin affecting landed cost

Judge the supplier before you compare prices. Look at these in order:

Manufacturing depth. Is there a real factory, an R&D team, large-size assembly and aging-test capability, and batch consistency control? Or is the company a trader repackaging someone else's panels?

Large-size capability. Can the supplier offer 86, 98, 105, and 110 inch models with native 4K, multi-touch, Android/Windows/OPS options, and integrated camera, audio, and DMS? A supplier whose largest product is 86 inches is not a large-format partner.

OEM/ODM flexibility. For brand or channel programs, ask about logo, packaging, UI, language, and preloaded apps; hardware changes such as touch points, camera, audio, and interfaces; and structural ODM, tooling, and CKD/SKD. Find out which options are standard and which need a project agreement.

Quality and certification. Ask about incoming inspection, in-process control, aging tests, pre-shipment checks, and traceability. Confirm CE, FCC, RoHS, ISO 9001, ISO 14001, and any country-specific approvals before committing to a tender.

Delivery and service. Clarify MOQ, sample policy, lead times, phased delivery, warranty, spare parts, firmware upgrades, technical support, DOA handling, and local service partners for multi-region projects.

1. Do you offer 98, 105, and 110 inch configurations?
2. Can we test a sample?
3. What are your MOQ and lead time?
4. Can you customize logo, UI, packaging, and software?
5. Which certifications can you provide for our market?
6. What are your warranty and spare parts terms?
7. Can you support multi-room or multi-site rollouts?

Qtenboard's public interactive whiteboard range spans 55, 65, 75, 86, 98, 105, and 110 inch sizes, including the 65 inch, 75 inch QM-75HY, 86 inch QM-86HY, 98 inch QM-98HY, and 110 inch 4K UHD models. For 110-inch projects, please confirm current model availability, active display dimensions, weight, touch technology, operating system, and lead time with Qtenboard before tendering or ordering.

For large rooms, our panels combine 4K UHD displays, anti-glare screens, multi-touch, digital whiteboard and annotation, wireless casting, Android/Windows/OPS expansion, optional camera, microphone, and speaker integration, AI-assisted meeting features, and remote device management for multi-room fleets.

For brands and channel partners, Qtenboard supports OEM/ODM projects including size selection, touch-point configuration, Android, Windows, or dual-system builds, OPS options, camera and audio choices, logo and boot screen, preloaded software, packaging and manuals, certifications, large-size shipping packaging, and CKD/SKD. Final feasibility depends on quantity, structure, tooling, and lead time.

Confirm these before ordering any large panel:

• Whether the model is a stock or mass-production item
• Active display area and outer dimensions
• Net and packaged weight
• VESA and mounting hole pattern
• Touch technology and touch points
• Native 4K resolution
• Brightness and anti-glare treatment
• Android version and Windows/OPS configuration
• Camera, microphone, and speaker plan
• Voltage, plug type, and certifications
• MOQ, sample policy, and lead time
• Shipping method for large panels
• Warranty and spare parts

1. Define the room and audience. Dimensions, headcount, farthest viewing distance, content types, interaction level, hybrid needs, and number of rooms.
2. Compare sizes. Look at 98, 105, and 110 inches by active area, outer size, weight, install feasibility, transport, price, lead time, and software/touch capability.
3. Write the technical spec. 4K UHD, anti-glare, commercial grade, touch points and latency, operating system, casting, HDMI and USB-C, camera and audio, DMS, warranty, certifications.
4. Survey the site. Wall, power, network, lighting, delivery route, mounting hardware, AV plan, and maintenance space.
5. Request a sample or live demo. Test PPT, Excel, PDF, drawings, video, multi-user writing, casting, Teams/Zoom calls, camera and microphone, and long-run stability.
6. Review five-year TCO. Panel, mount, installation, OPS/PC, camera and audio, network, shipping, and support.
7. Agree on acceptance criteria. 4K display, touch accuracy, multi-user writing, casting, audio/video, network, configuration, installation safety, packaging, training, and warranty paperwork.

• Choosing by the size label without checking the active display area
• Not comparing 98, 105, and 110 inch size, weight, and price
• Fixating on 4K while ignoring brightness, anti-glare, and content sources
• Never measuring the farthest viewing distance
• Skipping doors, elevators, corridors, and the installation path
• Not verifying wall load and VESA compatibility
• Reusing a small-room audio setup in a large training room
• Assuming built-in speakers will fill a big space
• Not testing multi-user writing and edge touch
• Not testing wireless casting with many users at once
• Overlooking whether the OPS or external PC really outputs 4K
• Ignoring network bandwidth for video conferencing
• Comparing unit prices while ignoring installation, transport, and maintenance
• Not requesting a sample, factory test, or acceptance criteria
• Not confirming that the chosen size and configuration are current standard products

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