Electronic device having a touch layer overlapping a display panel

An electronic device, comprising:

• a display panel;
• a timing control unit electrically connected to the display panel and used to provide a plurality of synchronization signals, wherein the display panel displays a first frame according to a first synchronization signal of the plurality of synchronization signals, and displays a second frame according to a second synchronization signal of the plurality of synchronization signals;
• a touch layer overlapping the display panel;
• a touch control unit electrically connected to the touch layer and used to provide a touch signal;
• a processing unit electrically connected to the timing control unit and the touch control unit, and used to generate a light-emitting signal according to the plurality of synchronization signals and the touch signal;
• a light-emitting layer overlapping the display panel and used to provide a light source to the display panel;
• and
• a light source driving unit electrically connected to the processing unit, wherein the light source driving unit controls the light-emitting layer to emit light in a first light-emitting mode during the first frame and controls the light-emitting layer to emit light in a second light-emitting mode during the second frame according to the light-emitting signal, wherein the first light-emitting mode and the second light-emitting mode are different,
• wherein in the first light-emitting mode, the first frame comprises a stop period and a first light-emitting period, wherein the light-emitting layer does not emit light during the stop period, and the light-emitting layer emits light during the first light-emitting period,
• wherein in the second light-emitting mode, the light-emitting layer continues to emit light during the entire period of the second frame.