Visable light communication display device and driving method

A display device, comprising a display panel and a control integrated circuit (IC), wherein the display panel comprises a plurality of light-emitting elements, the control IC is configured to control the plurality of light-emitting elements to be turned on at a first frequency to display display-related data, and control at least two light-emitting elements of the plurality of light-emitting elements to be turned on and off at a second frequency greater than the first frequency to transmit visible light data,

• wherein the display panel further comprises a plurality of retaining walls and an optical signal detector for detecting a visible light signal, wherein one retaining wall is arranged between the optical signal detector and an adjacent light-emitting element, there is at least one retaining wall arranged at each of two sides of the optical signal detector, there is at least one retaining wall arranged between two adjacent light-emitting elements, and the retaining walls have a height greater than or equal to that of at least one light-emitting element,
• wherein two retaining walls and the optical signal detector are arranged between two adjacent light-emitting elements configured to emit a same color light.