Screens in a row
Landscape or portrait displays show parts of one composition. Videos, transitions and menu changes follow a coordinated timeline.
Precise timing for the whole schedule
Several screens. One moment.
One clock for video walls, multi-screen compositions and precisely timed announcements. Online synchronization, LAN time sharing and RTC in NEXON Player Pro.
Three layers of time management
≈ 0,01 stypical synchronization of prepared compositions
1 msschedule timestamp resolution
LAN + RTCaligned time without internet
For prepared compositions on NEXON Player, the typical timing-difference target is around 10 ms, or 0.01 s. A 1 ms schedule resolution describes timing detail, not a guarantee of 1 ms frame accuracy on every television.
When synchronization becomes visible
When motion crosses from one display to another, even a brief delay breaks the image's continuity. NEXON Vision continuously maintains a shared clock and coordinates content starts.
Video walls: 2 × 2, 3 × 2 and beyond
Spread an image across displays so panoramic motion and scene changes are perceived as a single composition.
Announcements at the right moment
Advertising, audio announcements and scheduled events use a shared clock, not the timing of a manual tap on each player.
Three layers of time management
Online: Google Public NTP
When internet is available, players regularly check their clocks against time.google.com. Synchronization continues during playback, not just at startup.
Offline: local network
Without internet, players on the same LAN align their clocks with one another. Automatic mode switches from the external source to a local one, prioritizing devices with RTC.
RTC: a battery-backed clock
NEXON Player Pro includes a Real-Time Clock with a backup battery. It keeps time when main power is off and helps restore the correct schedule after a restart.
For sites with unreliable internet, we recommend Player Pro with RTC. The battery powers the clock, not the entire player; network synchronization corrects its time when connectivity is available.
Precision all the way to the screen
A shared clock is not enough: the file, decoder and next frame must also be ready on time.
A timestamped schedule
The player receives a ready-made timeline: what to show, when to start and when to switch. Timestamps use 1 ms resolution, with devices following the same schedule.
Hardware decoding
The NEXON Player processor and video pipeline are selected for fast frame preparation. Hardware decoding works together with software playback control.
An optimized player
Playback software coordinates decoder preparation, content start and the visible frame switch. The next item is prepared before the current one finishes.
The next item is already being prepared
Advance preparation and buffering reduce gaps between items. While the current video plays, the player gets the next item ready to start.
APlaying
BPreparing
A → BScheduled start
Downloaded videos, audio and images are available locally. This enables smooth transitions without waiting for a download at the switching point.
YouTube, websites and online streams also have a preparation stage. Readiness depends on the external service; for the most cohesive video walls, we recommend local video files.
API and MQTT: one event for a group of screens
API events and air-alert notifications can trigger a scenario across a group of devices. MQTT delivers commands quickly, while a shared timeline helps coordinate execution.
Use this for announcements, composition changes or other automated actions. Command delivery and start precision are separate stages: fast messaging complements clock synchronization.
Build a composition that works as one
We will help select players, configure shared timing and prepare content for your row of screens or video wall.