CN-122028613-A - Display substrate, manufacturing method thereof and display device

CN122028613ACN 122028613 ACN122028613 ACN 122028613ACN-122028613-A

Abstract

The embodiment of the application provides a display substrate, a manufacturing method thereof and a display device, and belongs to the technical field of display. The display substrate comprises a substrate, a driving circuit layer, a light-emitting structure, a touch functional layer and a touch functional layer, wherein the driving circuit layer is arranged on the substrate, the light-emitting structure is arranged on one side of the driving circuit layer far away from the substrate, the touch functional layer is arranged on one side of the light-emitting structure far away from the substrate, the touch functional layer comprises a touch substrate, a first touch wiring, a touch insulating layer and a second touch wiring which are sequentially stacked along the direction far away from the substrate, the substrate comprises a display area, a binding area and a wiring area, the binding area is arranged on the periphery of the display area, the wiring area is arranged between the display area and the binding area, the first touch wiring is disconnected in the wiring area and is divided into a first part and a second part, the first part and the second part are connected through conductive connecting wires, and the conductive connecting wires are arranged on one side of the touch insulating layer far away from the substrate. The embodiment of the application can avoid the problem of failure of the touch control functional layer.

Inventors

XU TONGWEI
ZHANG WEI
WANG LINGFEI
TANG LIANG
LI YANG
MA BINBIN
DU KUI
WEN JING

Assignees

京东方科技集团股份有限公司
重庆京东方显示技术有限公司

Dates

Publication Date: 20260512
Application Date: 20260320

Claims (10)

1. A display substrate is characterized by comprising a substrate base plate; a driving circuit layer on the substrate base plate; the touch control functional layer comprises a touch control substrate, a first touch control wiring, a touch control insulating layer and a second touch control wiring which are sequentially laminated along the direction away from the substrate; The substrate comprises a display area, a binding area positioned at the periphery of the display area and a wiring area positioned between the display area and the binding area, wherein the first touch wiring is disconnected in the wiring area and is divided into a first part positioned in the display area and a second part positioned in the binding area, the first part and the second part are connected through a conductive connecting wire, and the conductive connecting wire is positioned at one side of the touch insulating layer far away from the substrate.
2. The display substrate of claim 1, wherein an orthographic projection of the first touch trace on the substrate does not overlap the trace region.
3. The display substrate of claim 1, wherein the conductive connection lines are disposed in the same layer of material as the second touch trace.
4. A display substrate according to any one of claims 1-3, wherein an inorganic insulating layer is disposed on a side of the touch functional layer, which is close to the substrate, and a boundary of the inorganic insulating layer is located in the routing area, and an undercut structure is formed on a boundary of the inorganic insulating layer.
5. The display substrate according to claim 4, wherein the light emitting structure comprises at least two light emitting units arranged in a stacked manner, and the inorganic insulating layer is located between adjacent light emitting units.
6. The display substrate according to claim 4, the display substrate is characterized by further comprising: and the planarization layer is positioned in the wiring area, is positioned between the touch control functional layer and the inorganic insulating layer and covers the undercut structure.
7. The display substrate according to claim 6, wherein the planarization layer is formed after the pixel defining layer or the black matrix of the display region extends to the routing region.
8. A display device comprising the display substrate according to any one of claims 1 to 7.
9. The manufacturing method of the display substrate is characterized in that the display substrate comprises a substrate, a driving circuit layer, a light-emitting structure, a touch functional layer and a touch functional layer, wherein the driving circuit layer is arranged on the substrate, the light-emitting structure is arranged on one side of the driving circuit layer away from the substrate, the touch functional layer is arranged on one side of the light-emitting structure away from the substrate, the touch functional layer comprises a touch substrate, a first touch wiring, a touch insulating layer and a second touch wiring which are sequentially stacked along the direction away from the substrate, the substrate comprises a display area, a binding area and a wiring area, the binding area is arranged on the periphery of the display area, and the wiring area is arranged between the display area and the binding area, and the manufacturing method comprises the steps of: The first touch control wiring is disconnected in the wiring area, so that the first touch control wiring is divided into a first part located in the display area and a second part located in the binding area, the first part and the second part are connected through a conductive connecting wire, and the conductive connecting wire is located on one side, far away from the substrate, of the touch control insulating layer.
10. The method for manufacturing a display substrate according to claim 9, wherein an inorganic insulating layer is disposed on a side of the touch functional layer, which is close to the substrate, and a boundary of the inorganic insulating layer is located in the routing area, and an undercut structure is formed on a boundary of the inorganic insulating layer, and the method further comprises: And forming a planarization layer in the wiring region, wherein the planarization layer is positioned between the touch functional layer and the inorganic insulating layer, and covers the undercut structure.

Description

Display substrate, manufacturing method thereof and display device Technical Field The disclosure relates to the technical field of display, in particular to a display substrate, a manufacturing method thereof and a display device. Background An OLED (Organic Light-Emitting Diode) display device has been listed as a next-generation display technology with great development prospects due to the advantages of thinness, lightness, wide viewing angle, active Light emission, continuous and adjustable Light emission color, low cost, fast response speed, low energy consumption, low driving voltage, wide operating temperature range, simple production process, high Light emission efficiency, flexible display, and the like. Disclosure of Invention The embodiment of the application provides a display substrate, a manufacturing method thereof and a display device, which can solve the problem of failure of a touch control functional layer. In order to solve the technical problems, the application is realized as follows: A display substrate includes a substrate; a driving circuit layer on the substrate base plate; the touch control functional layer comprises a touch control substrate, a first touch control wiring, a touch control insulating layer and a second touch control wiring which are sequentially laminated along the direction away from the substrate; The substrate comprises a display area, a binding area positioned at the periphery of the display area and a wiring area positioned between the display area and the binding area, wherein the first touch wiring is disconnected in the wiring area and is divided into a first part positioned in the display area and a second part positioned in the binding area, the first part and the second part are connected through a conductive connecting wire, and the conductive connecting wire is positioned at one side of the touch insulating layer far away from the substrate. In some embodiments, the orthographic projection of the first touch trace on the substrate does not overlap with the trace area. In some embodiments, the conductive connection line and the second touch trace are disposed in the same layer and the same material. In some embodiments, an inorganic insulating layer is disposed on a side of the touch functional layer, which is close to the substrate, and a boundary of the inorganic insulating layer is located in the routing area, and an undercut structure is formed on a boundary of the inorganic insulating layer. In some embodiments, the light emitting structure includes at least two light emitting units disposed in a stacked state, and the inorganic insulating layer is disposed between adjacent light emitting units. In some embodiments, the display substrate further comprises: and the planarization layer is positioned in the wiring area, is positioned between the touch control functional layer and the inorganic insulating layer and covers the undercut structure. In some embodiments, the planarization layer is formed after the pixel defining layer or the black matrix of the display region extends to the routing region. The embodiment of the application also provides a display device which comprises the display substrate. The embodiment of the application also provides a manufacturing method of the display substrate, which comprises a substrate, a driving circuit layer positioned on the substrate, a light-emitting structure positioned on one side of the driving circuit layer far away from the substrate, a touch control functional layer positioned on one side of the light-emitting structure far away from the substrate, wherein the touch control functional layer comprises a touch control substrate, a first touch control wiring, a touch control insulating layer and a second touch control wiring which are sequentially laminated along the direction far away from the substrate, the substrate comprises a display area, a binding area positioned on the periphery of the display area and a wiring area positioned between the display area and the binding area, and the manufacturing method comprises the following steps: The first touch control wiring is disconnected in the wiring area, so that the first touch control wiring is divided into a first part located in the display area and a second part located in the binding area, the first part and the second part are connected through a conductive connecting wire, and the conductive connecting wire is located on one side, far away from the substrate, of the touch control insulating layer. In some embodiments, an inorganic insulating layer is disposed on a side of the touch functional layer, which is close to the substrate, the boundary of the inorganic insulating layer is located in the routing area, and an undercut structure is formed on the boundary of the inorganic insulating layer, and the manufacturing method further includes: And forming a planarization layer in the wiring region, wherein the planarization layer is positioned betw