Touch display panel, method for fabricating the same, and display device
View Patent ↗Disclosed are a touch display panel, a method for fabricating the same, and a display device. Firstly first spacers are fabricated on an encapsulation cover plate, and then a pattern of touch signal lines overlying the first spacers is formed on the encapsulation cover plate, and also second spacers are formed on a substrate at positions corresponding to the first spacers, and metal lines are arranged on the second spacers to be connected with touch signal line lead lines, so that the metal lines are connected with a printed circuit board, and the touch signal lines on the first spacers come into contact with the metal lines on the second spacers while the encapsulation cover plate is being aligned with the substrate, so that the touch signal lines arranged on the encapsulation cover plate are connected with the printed circuit board arranged on the substrate.
1. A touch display panel, comprising a substrate, an encapsulation cover plate, and organic light-emitting elements, a printed circuit board, and organic light-emitting element lead-out lines connected with the organic light-emitting elements, the organic light-emitting elements, the printed circuit board, and the organic light-emitting element lead-out lines are arranged on a side of the substrate facing the encapsulation cover plate, wherein the organic light-emitting elements are electrically connected with the printed circuit board through the organic light-emitting element lead-out lines, wherein the touch display panel further comprises:
first spacers, and touch signal lines overlying the first spacers, the first spacers and touch signal lines are arranged successively on a side of the encapsulation cover plate facing the substrate; and
second spacers corresponding to the first spacers, and metal lines overlying the second spacers, the second spacers and metal lines are arranged on the side of the substrate facing the encapsulation cover plate, wherein the metal lines are connected with the printed circuit board, and the metal lines are electrically connected with the touch signal lines overlying the first spacers.
2. The touch display panel according to claim 1 , wherein the first spacers and the second spacers are mirror-symmetric on a plane parallel to the substrate.
3. The touch display panel according to claim 2 , wherein the shapes of the first spacers and the second spacers are a trapeziform boss or a trapeziform stepped boss.
4. The touch display panel according to claim 1 , wherein the metal lines are electrically connected with the printed circuit board through touch signal line lead lines arranged on the side of the substrate facing the encapsulation cover plate.
5. The touch display panel according to claim 4 , wherein the touch signal line lead lines are arranged at layer same as a layer on which a source-drain layer or a gate layer arranged on the substrate facing the encapsulation cover plate is arranged.
6. The touch display panel according to claim 4 , wherein the metal lines are connected with the touch signal line lead lines through at least one of through-holes arranged on the side of the substrate facing the encapsulation cover plate.
7. The touch display panel according to claim 4 , wherein the metal lines are connected with the touch signal line lead lines through first through-holes on a planarization layer arranged on the side of the substrate facing the encapsulation cover plate, and second through-holes on a pixel definition layer.
8. The touch display panel according to claim 4 , wherein the metal lines are connected with the touch signal line lead lines through the first through-holes on the planarization layer arranged on the side of the substrate facing the encapsulation cover plate, the second through-holes on the pixel definition layer, and third through-holes on a gate insulation layer.
9. The touch display panel according to claim 1 , wherein both the first spacers and the second spacers are arranged in a non-display area of the touch display panel.
10. A method for fabricating the touch display panel according to claim 1 , the method comprising:
providing the encapsulation cover plate, and forming the first spacers on the side of the encapsulation cover plate facing the substrate;
forming a pattern of the touch signal lines on the encapsulation cover plate formed with the first spacers, wherein the touch signal lines overlie the first spacers;
providing the substrate, and forming the organic light-emitting elements, and the organic light-emitting element lead-out lines connected with the organic light-emitting elements, above the substrate, wherein the organic light-emitting elements are electrically connected with the printed circuit board located on the substrate through the organic light-emitting element lead-out lines;
forming the second spacers corresponding to the first spacers, and the metal lines overlying the second spacers, above the organic light-emitting elements, wherein the metal lines are electrically connected with the printed circuit board; and
aligning the encapsulation cover plate with the substrate, so that the metal lines are electrically connected with the touch signal lines overlying the first spacers to form the sealed touch display panel.
11. A display device, comprising the touch display panel according to claim 1 .