lightpad
nounUK /ˈlaɪt.pæd/
US /ˈlaɪt.pæd/
A flat board that glows so you can trace or draw on paper placed on top of it.
She put her drawing paper on the lightpad and traced the picture easily.
OTHER MEANINGS
2. A thin illuminated tablet-like device used for viewing slides or film.
The photographer checked the negatives on a lightpad.
3. A small glowing panel used as a soft light source in photography or video.
They used a lightpad to add gentle fill light to the scene.
4. A flat backlit surface used in art and design for detailed tracing work.
The designer kept a lightpad on her desk for fine lettering.