Touch display panel and display apparatus
The embodiment of the present disclosure provides a touch display panel and a display apparatus. The touch display panel includes: a base substrate; a plurality of display signal lines on one side of the base substrate; a plurality of light-emitting devices in an array on a side of the plurality of display signal lines away from the base substrate; a touch structure on a side of the plurality of light-emitting devices away from the base substrate; and a shielding layer between the plurality of display signal lines and the plurality of light-emitting devices, wherein an orthographic projection of the shielding layer on the base substrate covers at least a part of an orthographic projection of the plurality of display signal lines on the base substrate.
1 . A touch display panel, comprising:
a base substrate;
a plurality of display signal lines on one side of the base substrate;
a plurality of light-emitting devices arranged in an array on a side of the plurality of display signal lines away from the base substrate;
a touch structure on a side of the plurality of light-emitting devices away from the base substrate; and
a shielding layer between the plurality of display signal lines and the plurality of light-emitting devices, wherein an orthographic projection of the shielding layer on the base substrate covers at least a part of an orthographic projection of the plurality of display signal lines on the base substrate;
wherein the touch display panel comprises a display region and a frame region around the display region; the touch display panel further comprises: a high voltage power line in the display region and extending to the frame region, and a low voltage power line in the frame region; and
the touch display panel further comprises a first conductive connection part and a second conductive connection part arranged independent from each other in the frame region and in a same layer as the shielding layer; the first conductive connection part is electrically connected to the high voltage power line, and the second conductive connection part is electrically connected to the low voltage power line.
2 . The touch display panel of claim 1 , wherein an orthographic projection of the plurality of display signal lines on the base substrate is within the orthographic projection of the shielding layer on the base substrate.
3 . The touch display panel of claim 1 , wherein the shielding layer is made of a conductive material, and is loaded with a constant voltage signal or is grounded.
4 . The touch display panel of claim 3 , wherein the shielding layer is made of Titanium/Aluminum/Titanium, Copper or Indium Tin Oxide.
5 . The touch display panel of claim 1 , wherein the shielding layer has a mesh structure.
6 . The touch display panel of claim 1 , wherein the plurality of display signal lines comprise a data signal line, a scanning signal line, a reset signal line, and a light-emitting control signal line.
7 . The touch display panel of claim 6 , further comprising a gate electrode in a same layer as the light-emitting control signal line,
wherein the orthographic projection of the shielding layer on the base substrate further covers an orthographic projection of the gate electrode on the base substrate.
8 . The touch display panel of claim 6 , wherein the data signal line is between the base substrate and the shielding layer, the scanning signal line and the reset signal line are in a same layer and located between the data signal line and the base substrate, and the light-emitting control signal line is between the scanning signal line and the base substrate.
9 . The touch display panel of claim 8 , further comprising: a first planarization layer between the data signal line and the scanning signal line, a second planarization layer between the data signal line and the shielding layer, and a third planarization layer between the shielding layer and the plurality of light-emitting devices.
10 . The touch display panel of claim 9 , further comprising: an encapsulation layer between the plurality of light-emitting devices and the touch structure, a polarizer on a side of the touch structure away from the base substrate, an optical adhesive on a side of the polarizer away from the base substrate, and a cover plate on a side of the optical adhesive away from the base substrate.
11 . A display apparatus, comprising the touch display panel of claim 1 .
12 . The display apparatus of claim 11 , further comprising a flexible circuit board, wherein the flexible circuit board comprises at least one ground pad and at least one constant voltage pad, and the shield layer is at least electrically connected to two ground pads, or two constant voltage pads, or one ground pad and one constant voltage pad.
13 . A touch display panel, comprising:
a base substrate;
a plurality of display signal lines on one side of the base substrate;
a plurality of light-emitting devices arranged in an array on a side of the plurality of display signal lines away from the base substrate;
an encapsulation layer on a side of the plurality of light-emitting devices away from the base substrate;
a touch structure on a side of the encapsulation layer away from the base substrate; and
a shielding layer between the plurality of display signal lines and the touch structure, wherein an orthographic projection of the shielding layer on the base substrate covers at least a part of an orthographic projection of the plurality of display signal lines on the base substrate; wherein
the plurality of display signal lines comprise a first signal line and a second signal line, the first signal line is configured to input an alternating current signal, and the second signal line is configured to input a direct current signal; and
an overlapping area between the orthographic projection of the shielding layer on the base substrate and an orthographic projection of the first signal line on the base substrate is greater than an overlapping area between the orthographic projection of the shielding layer on the base substrate and an orthographic projection of the second signal line on the base substrate.
14 . The touch display panel of claim 13 , wherein the first signal line comprises at least one of a data signal line, a scanning signal line, a reset signal line, and a light-emitting control signal line, and the second signal line comprises at least one of a high voltage power line, a low voltage power line, and an initialization signal line.
15 . The display apparatus of claim 11 , further comprising an active stylus.
16 . A display apparatus, comprising the touch display panel of claim 13 .