Display panel, preparation method thereof, and display device
AssigneeXiamen Extremely PQ Display Technology Co., Ltd.
InventorTung-Kai Liu
Life of this patent
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Abstract
A display panel, a preparation method thereof, and a display device are provided. The display panel includes a display substrate and a capacitive touch sensing structure. The display substrate includes a driving array layer and multiple micro light-emitting devices, and the multiple micro light-emitting devices are in contact with and electrically connected to the driving array layer. The capacitive touch sensing structure is located at a side of the driving array layer adjacent to the multiple micro light-emitting devices and spaced apart from the multiple micro light-emitting devices, and is electrically connected to the driving array layer. It has the characteristics of simple structure, low cost and accurate sensing.
Claims16
A display panel comprising:
- a display substrate, comprising a driving array layer and a plurality of micro light-emitting devices, wherein the micro light-emitting devices are in contact with and electrically connected to the driving array layer;
- a capacitive touch sensing structure, located at a side of the driving array layer adjacent to the plurality of micro light-emitting devices and spaced apart from the plurality of micro light-emitting devices, and the capacitive touch sensing structure being electrically connected to the driving array layer;
- a light-shielding layer, arranged between the plurality of micro light-emitting devices and exposing sides of the plurality of micro light-emitting devices facing away from the driving array layer;
- a planarization layer, covering the light-shielding layer and the sides of the plurality of micro light-emitting devices facing away from the driving array layer;
- and
- conductive through-holes, penetrating through the planarization layer and the light-shielding layer and extending to the driving array layer;
- wherein the capacitive touch sensing structure comprises transparent sensing circuit layers, and the transparent sensing circuit layers cover a side of the planarization layer facing away from the light-shielding layer and is electrically connected to the driving array layer through the conductive through-holes.
A preparation method of a display panel, comprising:
- providing a display substrate, wherein the display substrate comprises a driving array layer and a plurality of micro light-emitting devices, and the plurality of micro light-emitting devices are in contact with and electrically connected to the driving array layer;
- forming a capacitive touch sensing structure on a side of the display substrate adjacent to the plurality of micro light-emitting devices to make the capacitive touch sensing structure be spaced apart from the plurality of micro light-emitting devices and be electrically connected to the driving array layer, so as to obtain the display panel;
- manufacturing a light-shielding layer between the plurality of micro light-emitting devices and exposing sides of the plurality of micro light-emitting devices facing away from the driving array layer;
- manufacturing a planarization layer on a side of the light-shielding layer facing away from the driving array layer;
- wherein the forming a capacitive touch sensing structure on a side of the display substrate adjacent to the plurality of micro light-emitting devices to make the capacitive touch sensing structure be spaced apart from the plurality of micro light-emitting devices and be electrically connected to the driving array layer comprises:
- forming conductive through-holes penetrating through the planarization layer and the light-shielding layer;
- and
- covering transparent sensing circuit layers on a side of the planarization layer facing away from the light-shielding layer, and making the transparent sensing circuit layers be electrically connected to the driving array layer through the conductive through-holes, thereby forming the capacitive touch sensing structure.
Dependencies are inferred from the claim text.