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US 11,232,722 B2Granted
Foldable display device
AssigneeSamsung Display Co., Ltd.
InventorMyoung Seo Park
Life of this patent
Estimating the term…
Abstract
A foldable display device is provided. The foldable display device may comprise a lower module, a display module on the lower module, a functional module on the display module, and a window module on the functional module. The display module may include a main region having a display area. The display module may include a lower inorganic encapsulation structure and an upper inorganic encapsulation structure directly contacting each other to form an inorganic-inorganic contact closed loop that substantially surrounds the display area in a plan view. The upper inorganic encapsulation structure may include at least three layers. Both of the upper inorganic encapsulation structure and the window module may be flexible.
Claims73
A foldable display device, comprising:
- a lower module having a first side end disposed in a first side area of the foldable display device;
- a double-sided adhesive layer on the lower module;
- a display module on the double-sided adhesive layer, the display module including, as one body:
- a main region including a display area disposed over the lower module, the main region having a first side end disposed in the first side area, the display area including an emissive unit having a first electrode, a second electrode, and an emission layer between the first and second electrodes, the display area having a first side end disposed in the first side area;
- a sub region disposed under the lower module and overlapping the main region, the sub region having a first side end disposed in the first side area;
- and
- a bent region being disposed in the first side area and being between the first side end of the main region and the first side end of the sub region such that the bent region is bent between the first side end of the main region and the first side end of the sub region, the bent region having an outer surface between an upper surface of the main region and a lower surface of the sub region, and an inner surface between a lower surface of the main region and an upper surface of the sub region;
- a functional module disposed on the main region and providing at least one selected from the group of a polarization function, a color filtering function, a color conversion function, and a touch sensing function, the functional module having a first side end disposed in the first side area;
- and
- a window module disposed on the functional module, the window module having a first side end disposed in the first side area, wherein:
- the display module includes a lower inorganic encapsulation structure and an upper encapsulation structure having a lower surface comprising only at least one inorganic material, the lower inorganic encapsulation structure and the upper encapsulation structure directly contacting each other to form an inorganic-inorganic contact closed loop that substantially surrounds the display area in plan view, the emissive unit being located between the lower inorganic encapsulation structure and the upper encapsulation structure;
- the upper encapsulation structure includes a first inorganic layer, an organic layer disposed on the first inorganic layer, and a second inorganic layer disposed on the organic layer;
- both of the upper encapsulation structure and the window module are flexible;
- and
- the first side end of the main region is disposed outwardly away from the first side end of the display area in plan view, and the first side end of the main region is not disposed inwardly away from the first side end of the lower module in plan view.
12 more elements
A mobile terminal with a foldable display device, the foldable display device providing an image displayed from the mobile terminal, wherein the improvement comprises that the foldable display device comprises:
- a lower module having a first side end disposed in a first side area of the foldable display device;
- a double-sided adhesive layer on the lower module;
- a display module on the double-sided adhesive layer, the display module including, as one body:
- a main region including a display area disposed over the lower module, the main region having a first side end disposed in the first side area, the display area including an emissive unit having a first electrode, a second electrode, and an emissive layer between the first and second electrodes, the display area having a first side end disposed in the first side area;
- a sub region disposed under the lower module and overlapping the main region, the sub region having a first side end disposed in the first side area;
- and
- a bent region being disposed in the first side area and being between the first side end of the main region and the first side end of the sub region such that the bent region is bent between the first side end of the main region and the first side end of the sub region, the bent region having an outer surface between an upper surface of the main region and a lower surface of the sub region, and an inner surface between a lower surface of the main region and an upper surface of the sub region;
- a functional module disposed on the main region and providing at least one selected from the group of a polarization function, a color filtering function, a color conversion function, and a touch sensing function, the functional module having a first side end disposed in the first side area;
- and
- a window module disposed on the functional module, the window module having a first side end disposed in the first side area, wherein:
- the display module includes a lower inorganic encapsulation structure and an upper encapsulation structure having a lower surface comprising only at least one inorganic material, the lower inorganic encapsulation structure and the upper encapsulation structure directly contacting each other to form an inorganic-inorganic contact closed loop that substantially surrounds the display area in plan view, the emissive unit being located between the lower inorganic encapsulation structure and the upper encapsulation structure;
- the upper encapsulation structure includes a first inorganic layer, an organic layer disposed on the first inorganic layer, and a second inorganic layer disposed on the organic layer;
- both of the upper encapsulation structure and the window module are flexible;
- and
- the first side end of the main region is disposed outwardly away from the first side end of the display area in plan view, and the first side end of the main region is not disposed inwardly away from the first side end of the lower module in plan view.
12 more elements
Dependencies are inferred from the claim text.