Display terms explained.

Commercial display

A screen specified for business use. The name alone does not establish operating hours, orientation or warranty.

PROJECT QUESTIONIs the exact model approved for our use?

Digital signage

Managed display of digital content at defined locations, including content, player, display and operation.

PROJECT QUESTIONWhat job does each site perform?

Outdoor display

A display system for the intended outdoor installation. Suitability requires assessment of light, weather, heat and mounting.

PROJECT QUESTIONWhich site conditions were assessed?

Luminance / brightness

Luminance describes light from a surface in a direction. It does not alone determine readability in ambient light.

PROJECT QUESTIONUnder which conditions does the stated value apply?

Nit

Common name for cd/m², the unit of luminance. Peak values and usable sustained operation need separate checks.

PROJECT QUESTIONIs that value sustainable at the site?

IP rating

Classification of enclosure protection under IEC 60529. Not a complete claim of outdoor suitability or thermal behavior.

PROJECT QUESTIONWhich configuration does the evidence cover?

CMS

Content management system: software for maintaining, scheduling and distributing content. Device control is an additional task.

PROJECT QUESTIONCan roles, approvals and offline cases be tested?

Remote device management

Remote monitoring and control, such as status checks or restarts. Scope depends on the product.

PROJECT QUESTIONWhich failures are detected and who responds?

Wayfinding

Guidance from the current location to a destination. Consistent destination names and clear directions matter more than decoration.

PROJECT QUESTIONCan first-time visitors actually reach the destination?

Touch display

A display with touch input. Sensor, glass, software and the task must work together.

PROJECT QUESTIONWas the real application tested on this assembly?

LCD

Liquid crystal display: an imaging system using liquid crystals, typically with separate backlighting.

PROJECT QUESTIONAre image, orientation and operating conditions suitable?

Direct-view LED

An image surface of directly visible LEDs, often modular. Distinct from LED backlighting in an LCD.

PROJECT QUESTIONDo pixel pitch, distance and service access fit?

Video wall

A display assembled from multiple image segments. LCD walls need content designed around visible joins.

PROJECT QUESTIONDo joins interrupt essential information?

Pixel pitch

Distance between neighboring pixel centers. Evaluate with content and viewing distance for LED surfaces.

PROJECT QUESTIONWas the smallest essential text tested?

Bezel

Physical border around the image area. Across multiple displays it can define visible joins.

PROJECT QUESTIONIs the content layout adapted to the joins?

Orientation

Intended mounting direction, such as portrait or landscape. Not every model supports every orientation.

PROJECT QUESTIONIs there explicit approval?

Duty cycle

Planned operating schedule for a device. Approval and warranty must match the actual schedule.

PROJECT QUESTIONDo the terms cover our schedule?

Media player

Hardware or integrated software that plays content. Selection includes compatibility, offline behavior and updates.

PROJECT QUESTIONWhat continues without network access?

System on chip

An integrated computing platform that may handle player functions inside the display. Check app and update support separately.

PROJECT QUESTIONHow long will our software be supported?

Playlist

Sequence and rules for playback. Rotation must not make essential information unavailable.

PROJECT QUESTIONDoes duration fit dwell time?

Proof of play

A record of playback. Without further checks it proves neither visibility nor attention.

PROJECT QUESTIONWhat evidence does our use case require?

Offline playback

Playback without a current network connection, often from locally stored content. Test freshness and limits.

PROJECT QUESTIONWhich version appears during a disconnection?

Fallback

A planned alternative when a display or data source fails. May be digital, printed or a different operating process.

PROJECT QUESTIONWho activates the alternative?

Capacitive touch

Touch sensing through changes in an electric field. Suitability depends on sensor, input and glass construction.

PROJECT QUESTIONIs the planned glass/input combination confirmed?

Infrared touch

Touch sensing through an optical grid. Test frame, edges and environment in the full assembly.

PROJECT QUESTIONDoes input work reliably at the edge?

Cover glass

Additional glass in front of the display. Reflections, cleaning and touch support affect use.

PROJECT QUESTIONWas the complete touch system tested with this cover glass?

Kiosk mode

A restricted public interface. Must protect administrative access and reset abandoned sessions.

PROJECT QUESTIONDoes any personal input remain after reset?

Service access

Space and procedure for maintenance or replacement. Check against the final installation before ordering.

PROJECT QUESTIONCan the part be replaced without unnecessary dismantling?

Total cost of ownership / TCO

Costs from purchase through operation and replacement over a defined period. State assumptions for licenses, energy and service.

PROJECT QUESTIONDo all proposals cover the same scope?

Acceptance testing

Documented checking of agreed outcomes. Connects requirements with tests, owners and unresolved defects.

PROJECT QUESTIONDoes every mandatory requirement have a traceable test?