Stretchable display module and stretchable display device

1. A stretchable display module, comprising a display panel and a touch layer embedded in the display panel, wherein the display panel comprises a plurality of island regions disposed at intervals, bridge connection regions each of which is located between adjacent two of the island regions, and aperture regions each of which is defined between each of the island regions and each of the bridge connection regions, and the display panel comprises:

a flexible underlay disposed in the island regions and the bridge connection regions;

a plurality of pixel islands disposed on the flexible underlay, wherein one of the pixel islands is disposed in each of the island regions, and at least one pixel is disposed on each of the pixel islands;

a plurality of connection bridges disposed in the bridge connection regions, wherein each of the connection bridges is connected to adjacent two of the pixel islands;

wherein the touch layer comprises a plurality of touch modules disposed in the island regions, one of the touch modules is disposed on each of the pixel islands, and adjacent two of at least some of the touch modules are connected to each other through the connection bridges;

wherein the touch module comprises a first touch electrode layer and a first touch connection line connected to the first touch electrode layer;

wherein the stretchable display module comprises a control circuit, an end of the first touch connection line away from the first touch electrode layer is connected to the control circuit through the connection bridges;

wherein the pixel on the pixel islands is electrically connected to the control circuit through the connection bridges;

wherein the pixel island comprises a first metal layer, first insulation layer, a second metal layer, a second insulation layer, and a third metal layer that are stacked on the flexible underlay from bottom to top;

wherein one of the first metal layer, the second metal layer, and the third metal layer comprises the first touch electrode layer;

wherein the touch layer further comprises a second touch electrode layer, and a second touch connection line connected to the second touch electrode layer, an end of the second touch connection line away from the second touch electrode layer is connected to the control circuit through the connection bridge, and the first insulation layer and/or the second insulation layer is disposed between the first touch electrode layer and the second touch electrode layer;

wherein a plurality of the pixel islands and a plurality of the touch modules are arranged in arrays respectively, adjacent two of the touch modules are arranged along a first direction or along a second direction, a plurality of the connection bridges comprise a plurality of first connection bridges and a plurality of second connection bridges, adjacent two of the touch modules arranged along the first direction are connected to each other through the first connection bridge, adjacent two of the touch modules arranged along the second direction are connected to each other through the second connection bridge;

wherein the first connection bridges are connected to the first touch connection lines of the touch modules, the second connection bridges are connected to the second touch connection lines in the touch modules;

wherein the first insulation layer and/or the second insulation layer is disposed between the second touch electrode layer and the second touch connection line; and

wherein a second via hole is defined in the pixel island and is located between the second touch electrode layer and the second touch connection line, and the second touch electrode layer is connected to the second touch connection line through the second via hole.

2. The stretchable display module according to claim 1 , wherein the touch layer comprises a plurality of touch units and a plurality of touch signal lines, each of the touch units is connected to one of the touch signal lines, and each of the touch units comprises at least two of the touch modules; and

in one of the touch units, adjacent two of the touch modules are connected through the connection bridge.

3. The stretchable display module according to claim 1 , wherein one of the first metal layer, the second metal layer, and the third metal layer comprises the first touch connection line.

4. The stretchable display module according to claim 2 , wherein the first insulation layer and/or the second insulation layer is disposed between the first touch electrode layer and the first touch connection line; and

a first via hole is defined in the pixel island and is located between the first touch electrode layer and the first touch connection line, and the first touch electrode layer is connected to the first touch connection line through the first via hole.

5. The stretchable display module according to claim 1 , wherein one of the first metal layer, the second metal layer, and the third metal layer comprises the second touch electrode layer and the second touch connection line.

6. The stretchable display module according to claim 1 , wherein

another of the first metal layer, second metal layer, and the third metal layer comprises the second touch electrode layer.

7. The stretchable display module according to claim 1 , wherein the second metal layer comprises the connection bridge, the first touch connection line, and the second touch connection line.

8. The stretchable display module according to claim 1 , wherein the display panel further comprises an organic filling layer disposed on the flexible underlay and located in the bridge connection region, and the connection bridge is disposed on the organic filling layer.

9. The stretchable display module according to claim 1 , wherein the display panel further comprises a through hole defined in the aperture region, and the through hole extends through the flexible underlay.

10. The stretchable display module according to claim 9 , wherein the display panel further comprises a first substrate and a second substrate disposed oppositely, and a flexible protective layer, the flexible protective layer, the flexible underlay, the pixel islands, and the connection bridges are disposed between the first substrate and the second substrate; and

the flexible protective layer comprises a first flexible adhesive layer disposed between the flexible underlay and the first substrate, a second flexible adhesive layer disposed between the pixel island and the second substrate, and a third flexible adhesive layer disposed in the through hole.

11. The stretchable display module according to claim 1 , wherein the connection bridge is curved, the connection bridge at least comprises a first bending section and a second bending section.

12. A stretchable display device, comprising a stretchable display module;

wherein the stretchable display module comprises a display panel and a touch layer embedded in the display panel, the display panel comprises a plurality of island regions disposed at intervals, bridge connection regions each of which is located between adjacent two of the island regions, and aperture regions each of which is defined between each of the island regions and each of the bridge connection regions, and the display panel comprises:

a flexible underlay disposed in the island regions and the bridge connection regions;

a plurality of pixel islands disposed on the flexible underlay, wherein one of the pixel islands is disposed in each of the island regions, and at least one pixel is disposed on each of the pixel islands;

a plurality of connection bridges disposed in the bridge connection regions, wherein each of the connection bridges is connected to adjacent two of the pixel islands;

wherein the touch layer comprises a plurality of touch modules disposed in the island regions, one of the touch modules is disposed on each of the pixel islands, and adjacent two of at least some of the touch modules are connected to each other through the connection bridges;

wherein the touch module comprises a first touch electrode layer and a first touch connection line connected to the first touch electrode layer;

wherein the stretchable display module comprises a control circuit, an end of the first touch connection line away from the first touch electrode layer is connected to the control circuit through the connection bridges;

wherein the pixel on the pixel islands is electrically connected to the control circuit through the connection bridges;

wherein the pixel island comprises a first metal layer, first insulation layer, a second metal layer, a second insulation layer, and a third metal layer that are stacked on the flexible underlay from bottom to top;

wherein one of the first metal layer, the second metal layer, and the third metal layer comprises the first touch electrode layer;

wherein the touch layer further comprises a second touch electrode layer, and a second touch connection line connected to the second touch electrode layer, an end of the second touch connection line away from the second touch electrode layer is connected to the control circuit through the connection bridge, and the first insulation layer and/or the second insulation layer is disposed between the first touch electrode layer and the second touch electrode layer;

wherein a plurality of the pixel islands and a plurality of the touch modules are arranged in arrays respectively, adjacent two of the touch modules are arranged along a first direction or along a second direction, a plurality of the connection bridges comprise a plurality of first connection bridges and a plurality of second connection bridges, adjacent two of the touch modules arranged along the first direction are connected to each other through the first connection bridge, adjacent two of the touch modules arranged along the second direction are connected to each other through the second connection bridge;

wherein the first connection bridges are connected to the first touch connection lines of the touch modules, the second connection bridges are connected to the second touch connection lines in the touch modules;

wherein the first insulation layer and/or the second insulation layer is disposed between the second touch electrode layer and the second touch connection line; and

wherein a second via hole is defined in the pixel island and is located between the second touch electrode layer and the second touch connection line, and the second touch electrode layer is connected to the second touch connection line through the second via hole.

13. The stretchable display device according to claim 12 , wherein the touch layer comprises a plurality of touch units and a plurality of touch signal lines, each of the touch units is connected to one of the touch signal lines, and each of the touch units comprises at least two of the touch modules; and

in one of the touch units, adjacent two of the touch modules are connected through the connection bridge.

14. A stretchable display module, comprising a display panel and a touch layer embedded in the display panel, wherein the display panel comprises a plurality of island regions disposed at intervals, bridge connection regions each of which is located between adjacent two of the island regions, and aperture regions each of which is defined between each of the island regions and each of the bridge connection regions, and the display panel comprises:

a flexible underlay disposed in the island regions and the bridge connection regions;

a plurality of pixel islands disposed on the flexible underlay, wherein one of the pixel islands is disposed in each of the island regions, and at least one pixel is disposed on each of the pixel islands;

a plurality of connection bridges disposed in the bridge connection regions, wherein each of the connection bridges is connected to adjacent two of the pixel islands;

wherein the touch layer comprises a plurality of touch modules disposed in the island regions, one of the touch modules is disposed on each of the pixel islands, and adjacent two of at least some of the touch modules are connected to each other through the connection bridges;

wherein the touch module comprises a first touch electrode layer and a first touch connection line connected to the first touch electrode layer;

wherein the stretchable display module comprises a control circuit, an end of the first touch connection line away from the first touch electrode layer is connected to the control circuit through the connection bridges;

wherein the pixel on the pixel islands is electrically connected to the control circuit through the connection bridges;

wherein the pixel island comprises a first metal layer, first insulation layer, a second metal layer, a second insulation layer, and a third metal layer that are stacked on the flexible underlay from bottom to top;

wherein one of the first metal layer, the second metal layer, and the third metal layer comprises the first touch electrode layer;

wherein the touch layer further comprises a second touch electrode layer, and a second touch connection line connected to the second touch electrode layer, an end of the second touch connection line away from the second touch electrode layer is connected to the control circuit through the connection bridge, and the first insulation layer and/or the second insulation layer is disposed between the first touch electrode layer and the second touch electrode layer;

wherein a plurality of the pixel islands and a plurality of the touch modules are arranged in arrays respectively, adjacent two of the touch modules are arranged along a first direction or along a second direction, a plurality of the connection bridges comprise a plurality of first connection bridges and a plurality of second connection bridges, adjacent two of the touch modules arranged along the first direction are connected to each other through the first connection bridge, adjacent two of the touch modules arranged along the second direction are connected to each other through the second connection bridge;

wherein the first connection bridges are connected to the first touch connection lines of the touch modules, the second connection bridges are connected to the second touch connection lines in the touch modules; and

wherein the second metal layer comprises the connection bridge, the first touch connection line, and the second touch connection line.