Tile panel, surface covering of a multitude of such tile panels for a floor, ceiling or wall surface

A tile panel for covering a floor, ceiling or wall surface, which tile panel comprises:

• at least one core layer,
• at least one decorative top section, directly or indirectly affixed to said core layer, wherein the top section defines a top surface of the tile panel,
• a plurality of side edges at least partially defined by said core layer and/or by said top section,
• at least one imitation grout line, comprising a channel shaped recess and at least one separate grout covering layer,
• wherein the at least one imitation grout line is provided along at least one side edge of the tile panel, which is formed by the channel-shaped recess connecting to the top surface of the tile panel, which recess extends along a side edge of the tile panel, and has a substantially constant width which is delimited by the respective side edge of the tile panel,
• wherein the channel shaped recess has an upwardly facing recess surface, which is at least partially formed by the separate grout covering layer, wherein said recess surface is at least partially concavely curved across the width direction of the recess,
• wherein a first tile panel edge comprises a first coupling profile, and a second tile panel edge, opposite to the first tile panel edge, comprising a second coupling profile being designed to engage interlockingly with said first coupling profile of an adjacent panel, both in horizontal direction and in vertical direction, wherein the first coupling profile and the second coupling profile are configured such that two of such panels can be coupled to each other by means of a lowering movement,
• wherein the first coupling profile comprises:
• an upward tongue,
• at least one upward flank lying at a distance from the upward tongue,
• an upward groove formed in between the upward tongue and the upward flank wherein the upward groove is adapted to receive at least a part of a downward tongue of a second coupling profile of an adjacent panel, and
• at least one first locking element provided at a distant side of the upward tongue facing away from the upward flank, extending horizontally from the at least one side edge and including a convexly curved radius,
• and wherein the second coupling profile comprises:
• a first downward tongue,
• at least one first downward flank lying at a distance from the downward tongue,
• a first downward groove formed in between the downward tongue and the downward flank, wherein the downward groove is adapted to receive at least a part of an upward tongue of a first coupling profile of an adjacent panel, and
• at least one second locking element adapted for co-action with a first locking element of an adjacent panel, said second locking element being provided at the downward flank, extending horizontally into the downward flank and including a concavely curved radius.