Display device

A display device comprising a folding area foldable around a folding axis on a plane, and a non-folding area adjacent to the folding area, the display device comprising:

• a display panel comprising a light emitting element;
• and
• a window disposed on the display panel and comprising a patterned glass,
• wherein the folding area comprises a folding emission area corresponding to the light emitting element, and a folding non-emission area adjacent to the folding emission area,
• wherein the patterned glass comprises:
• a patterned portion corresponding to the folding area, and having a top surface in which a plurality of first groove patterns are defined, and a bottom surface in which a plurality of second groove patterns are defined;
• and
• a non-patterned portion adjacent to the patterned portion and corresponding to the non-folding area,
• wherein the patterned portion comprises:
• a wall portion defined between a first groove pattern of the plurality of first groove patterns and a second groove pattern of the plurality of second groove patterns, which are adjacent to each other;
• a lower portion extending from a lower side of the wall portion in one direction and comprising the bottom surface of the patterned portion;
• and
• an upper portion extending from an upper side of the wall portion in the one direction and comprising the top surface of the patterned portion,
• wherein the wall portion corresponds to the folding emission area or corresponds to the folding non-emission area.

An electronic device comprising:

• a display device comprising a folding area foldable around a folding axis on a plane, and a non-folding area adjacent to the folding area;
• and
• a power module supplying power to the display device, wherein the display device comprises:
• a display panel comprising a plurality of light emitting elements;
• and
• a window disposed on the display panel and comprising a patterned glass,
• wherein the patterned glass comprises:
• a patterned portion corresponding to the folding area and having one surface in which a plurality of first groove patterns extending in a first direction and arranged in a second direction perpendicular to the first direction are defined;
• and
• a non-patterned portion adjacent to the patterned portion and corresponding to the non-folding area,
• wherein the folding area comprises a plurality of first areas corresponding to the plurality of light emitting elements, respectively, and arranged in the second direction, and a peripheral area adjacent to the plurality of first areas, and
• the patterned glass satisfies one of the following Equations:
• N
• a
• N
• g
• =
• n
• ⁢
• and
• ⁢
• N
• a
• N
• g
• =
• 1
• n
• ,
• wherein
• Ng denotes a number of the plurality of first groove patterns arranged in the second direction,
• Na denotes a number of the plurality of first areas arranged in the second direction, and
• n is an integer of 1 or greater.