Foldable display device

A display device comprising:

• a display panel comprising a display area and a non-display area, the display area having a first area, a second area, and a third area disposed between the first area and the second area in an unfolded state, wherein the third area has a curvature in a folded state;
• a sensing unit including touch signal lines and touch sensors comprising first sensors and second sensors disposed on the display panel;
• and
• an anti-reflection layer including a color filter on the display panel,
• wherein:
• the display panel comprises:
• a base layer overlapped with the display area and the non-display area;
• a circuit layer including a first transistor and a second transistor disposed on the base layer;
• light emitting elements disposed on the circuit layer, each of the light emitting elements comprising a first electrode, a second electrode disposed on the first electrode, and a light emitting layer disposed between the first electrode and the second electrode;
• a pixel defining layer on the circuit layer, the pixel defining layer partially exposing the first electrode, wherein a light emitting area is defined in the display panel corresponding to a portion of the first electrode exposed from the pixel defining layer;
• a thin film sealing layer disposed on the second electrode;
• and
• a protective film under the base layer;
• the sensing unit is disposed on the thin film sealing layer;
• each of the touch sensors has a substantially mesh shape and comprises titanium and aluminum;
• each of touch signal lines comprises titanium and aluminum;
• each of the touch sensors is on the pixel defining layer in a plan view;
• the thin film sealing layer comprises an organic layer and an inorganic layer;
• the first transistor includes a metal oxide semiconductor;
• the second transistor includes a poly-silicon semiconductor;
• in the folded state, the first sensors and second sensors overlap with each other and are capacitively coupled to each other;
• and
• in the unfolded state, the first sensors and the second sensors are configured to sense a touch of a user in a normal mode.

A portable phone with a display device comprising a flexible display module configured to display an image on a display surface, the flexible display module comprising:

• a display panel comprising a light-emitting device;
• a sensor unit disposed on the display panel;
• an adhesive member on the sensor unit;
• a window on the adhesive member;
• and
• a frame structure including a joint structure or a hinge structure disposed under the display panel,
• wherein:
• the sensor unit comprises first sensors and second sensors;
• in a folded-in mode in which the flexible display module is folded along a bending axis, a portion of the display surface faces another portion of the display surface;
• in the folded-in mode, the first sensors and second sensors overlap with each other and are capacitively coupled to each other;
• and
• the first sensors and the second sensors are configured to sense a touch of a user in a normal mode.

A portable phone with a display device comprising:

• a display panel comprising a display area and a non-display area, the display area having a first area, a second area, and a third area disposed between the first area and the second area in an unfolded state, wherein the third area has a curvature in a folded state;
• a sensing unit including touch signal lines and touch sensors comprising first sensors and second sensors disposed on the display panel;
• and
• an anti-reflection layer including a color filter on the display panel,
• wherein:
• the display panel comprises:
• a base layer overlapped with the display area and the non-display area;
• a circuit layer including a first transistor and a second transistor disposed on the base layer;
• light emitting elements disposed on the circuit layer, each of the light emitting elements comprising a first electrode, a second electrode disposed on the first electrode, and a light emitting layer disposed between the first electrode and the second electrode;
• a pixel defining layer on the circuit layer, the pixel defining layer partially exposing the first electrode, wherein a light emitting area is defined in the display panel corresponding to a portion of the first electrode exposed from the pixel defining layer;
• a thin film sealing layer disposed on the second electrode;
• an adhesive member on the sensing unit;
• a window on the adhesive member;
• and
• a protective film under the base layer;
• the sensing unit is disposed on the thin film sealing layer;
• each of the touch sensors has a substantially mesh shape and comprises titanium and aluminum;
• each of touch signal lines comprises titanium and aluminum;
• each of the touch sensors is on the pixel defining layer in a plan view;
• the thin film sealing layer comprises an organic layer and an inorganic layer;
• the first transistor includes a metal oxide semiconductor;
• the second transistor includes a poly-silicon semiconductor;
• in the folded state, the first sensors and second sensors overlap with each other and are capacitively coupled to each other;
• and
• in the unfolded state, the first sensors and the second sensors are configured to sense a touch of a user in a normal mode.