A display panel is judged on whether it reads as a plane, so a bent edge or a crushed corner is a reject even when the surface is intact. The panels are usually light and large, which makes them easy to handle badly: they are carried by the edges and stacked against whatever is available. A channel gives the edge something to be carried by.
Why display panels fail at the edge
A light panel with a large area has little inertia, so a knock moves it and the edge takes the bend. Once the edge is bent the whole face reads as curved, and that cannot be corrected after printing.
The channel also gives the handler a place to grip that is not the printed face, which removes the most common cause of a scuff.
Specification at a glance
Display panels range from 3 mm composite to 25 mm honeycomb. The channel follows the thickness, and the leg is short on thin panels to avoid bridging.
| Panel | Inner width | Leg | Note |
|---|
| Composite 3-6 mm | 4-7 mm | 25-30 mm | Print safe, close fit |
| Foam board 5-10 mm | 6-11 mm | 30-40 mm | Soft core, no crush |
| Honeycomb 15-25 mm | 16-26 mm | 40-50 mm | Light but stiff |
| A-frame, full length | As panel | 30 mm | Corner protection separate |
| Hanging pack | As panel | 40 mm | Weight on the bottom edge |
Flat stacks, A-frames and hanging packs
Flat stacks are normal for panels up to a manageable size, with the channel on the long edges and the panels resting on channels rather than on each other.
Large panels travel on edge in an A-frame or a crate, where the channel runs the full length and the corner protection takes the frame contact. The channel on its own does not hold a panel upright.
Print, film and the installation moment
Printed panels usually carry a protective film. The channel sits over it and should come away without lifting the film at the edge, which is why a loose fit is worse than a tight one.
At installation the channel is removed in front of the client, so a clean, dry, white-facing board reads better than a dusty kraft one.
Questions buyers ask before ordering
Will the channel keep a large panel flat?
It stiffens the edge, which is where a bend starts. It does not stiffen the whole panel.
Can it be used instead of a crate?
No. Large panels need an A-frame or a crate; the channel only protects the edge.
What facing for a printed panel?
White facing reads cleaner when the pack is opened in front of a client.
Will it lift the protective film?
A close fit sits over the film without lifting it. A loose channel lets the panel move and the film can lift.
Do you cut to the panel size?
Yes, up to 6,000 mm, bundled and labelled.
Tell us the piece size, quantity per shipment and how it is handled at mona@hengnicepacking.com and we will advise on the board build.
