Light-emitting panel

A light-emitting panel comprising:

• a front side and a back side;
• a first plurality of light-sources arranged in a first light-source layer and a second plurality of light-sources arranged in a second light-source layer, the first and second light source layers being arranged to emit light in a direction towards the front side;
• a light-diffusing layer arranged and configured to substantially only diffuse light emitted by light-sources in the first plurality of light-sources so that the light-emitting panel is arranged to provide diffused illumination from the first light-source layer and substantially un-diffused illumination from the second light-source layer;
• wherein the second light-source layer comprises a light-sensor for providing a signal based on the sensing of light emitted by light-sources in the first plurality of light-sources following reflection at an object arranged in front of the light-emitting panel, the light sensor being formed by at least a sub-set of the light-sources in the second plurality of light-sources that are controllable between a light-emitting state and a light-sensing state,
• wherein the light-emitting panel further comprises control circuitry configured to control light-sources in the second plurality of light-sources between the light-emitting state and the light-sensing state, and to control operation of the light-emitting panel based on the signal provided by the light-sensor.