Electronic device

An electronic device able to switch between a first displaying mode and a second displaying mode, comprising:

• a display comprising a plurality of light emitting elements and a first substrate;
• and
• a light-adjustable control panel disposed on the display and comprising a plurality of light control units, and the light-adjustable control panel comprising:
• a second substrate;
• a third substrate disposed opposite to the second substrate;
• and
• a display medium sandwiched between the second substrate and the third substrate, wherein the plurality of light control units form a plurality of first transparent regions and a plurality of non-transparent regions alternately arranged through the display medium in the first displaying mode, and the plurality of light control units form a second transparent region through the display medium in the second displaying mode,
• wherein a ratio of a total area of the plurality of first transparent regions to a total area of the plurality of light control units is different from a ratio of an area of the second transparent region to the total area of the plurality of light control units,
• wherein the first substrate is disposed between the plurality of light emitting elements and the light-adjustable control panel, and
• wherein a ratio of a total width of one of the plurality of first transparent regions and one of the plurality of non-transparent regions to a distance between the display medium and one of the plurality of light emitting elements is greater than or equal to 0.5 and less than or equal to 2.