CN-117529702-B - Display panel and display device

Abstract

The disclosure provides a display panel and a display device, and belongs to the technical field of display. The display Panel (PNL) comprises a substrate (BP), a display layer (EE) and a touch layer (TT) which are sequentially stacked, a display area (AA) of the display Panel (PNL) is provided with a light transmission area (AA 1), the touch layer (TT) is provided with touch channels (TS), each touch channel (TS) comprises a first signal channel (Tx) extending along a first Direction (DV) and a second signal channel (Rx) extending along a second Direction (DH), each second Direction (DH) is intersected with each first Direction (DV), each touch channel (TS) adjacent to the light transmission area (AA 1) is a heterogeneous touch channel (MTS), and at least one heterogeneous touch channel (MTS) comprises a plurality of heterogeneous touch channels (MTS) adjacent to the light transmission area (AA 1), and at least one heterogeneous touch channel (MTS) is kept continuous among the heterogeneous touch channels (MTS). The display panel can improve the touch performance of the light transmission area.

Inventors

• LUO CHANG
• ZHANG YUANQI
• ZHANG YI
• ZENG YANG
• ZHANG SHUN
• WEN PING
• WANG WEI
• WANG YU
• CHEN TIANCI

Assignees

• 京东方科技集团股份有限公司
• 成都京东方光电科技有限公司

Dates

Publication Date

20260505

Application Date

20220531

Claims (20)

1. 1. The display panel comprises a substrate base plate, a display layer and a touch layer which are sequentially stacked, wherein a display area of the display panel is provided with a light transmission area; the touch layer is provided with a touch channel, the touch channel comprises a first signal channel extending along a first direction and a second signal channel extending along a second direction, the second direction is intersected with the first direction, each first signal channel and each second signal channel define a plurality of touch positioning areas distributed in an array, the touch positioning areas are divided into a normal touch positioning area and a heterogeneous touch positioning area, the normal touch positioning area is not intersected with a light transmission area, the heterogeneous touch positioning area is adjacent to the light transmission area, the touch channel of the heterogeneous touch positioning area is a heterogeneous touch channel, and at least one heterogeneous touch channel comprises a plurality of heterogeneous touch sub-channels adjacent to the light transmission area; the touch channels of the normal touch positioning areas are normal touch channels, and no touch sub-channels are arranged in each touch channel of each normal touch positioning area.
2. 2. The display panel of claim 1, wherein the touch layer comprises a first touch metal layer, a touch insulating layer, and a second touch metal layer sequentially stacked on a side of the display layer away from the substrate; The first signal channel is provided with a plurality of first signal electrodes which are sequentially arranged along a first direction on the second touch metal layer, and two adjacent first signal electrodes are electrically connected through a conductive structure positioned on the first touch metal layer or the second touch metal layer; The second signal channel is provided with a plurality of second signal electrodes which are sequentially arranged along a second direction on the second touch metal layer, and two adjacent second signal electrodes are electrically connected through a conductive structure positioned on the first touch metal layer or the second touch metal layer.
3. 3. The display panel of claim 2, wherein a mutual capacitance is formed between the first signal channel and the second signal channel through the touch location area; In the same touch positioning area, the display panel comprises a first part and a second part of a first signal electrode, which respectively belong to two adjacent first signal electrodes, and a first part and a second part of a second signal electrode, which respectively belong to two adjacent second signal electrodes, wherein the first part of the first signal electrode and the second part of the first signal electrode are electrically connected, and the first part of the second signal electrode and the second part of the second signal electrode are electrically connected.
4. 4. The display panel of claim 3, wherein in at least one of the heterogeneous touch positioning areas, the first touch metal layer is provided with a bridge portion, a first portion of the first signal electrode includes at least two sub-electrodes, and the sub-electrode of the first portion of the at least one first signal electrode is electrically connected with a second portion of the first signal electrode through the bridge portion; And/or In at least one of the heterogeneous touch positioning areas, the first touch metal layer is provided with a bridging portion, the second portion of the first signal electrode comprises at least two sub-electrodes, and the sub-electrodes of the second portion of the at least one first signal electrode are electrically connected with the first portion of the first signal electrode through the bridging portion.
5. 5. The display panel according to claim 4, wherein in at least one of the heterogeneous touch positioning areas, the second touch metal layer is provided with a third portion of a second signal electrode and a connecting portion, wherein the third portion of the second signal electrode is sandwiched between two adjacent sub-electrodes of the first portion of the first signal electrode or between two adjacent sub-electrodes of the second portion of the first signal electrode along the second direction; One of the first part and the second part of the second signal electrode is electrically connected with the adjacent third part of the second signal electrode through the connecting part, and the other one of the first part and the second part of the second signal electrode is electrically connected with the adjacent third part of the second signal electrode through a conductive structure positioned on the first touch metal layer or the second touch metal layer.
6. 6. The display panel according to claim 3, wherein in at least one of the heterogeneous touch positioning areas, the second touch metal layer is provided with a connection portion, a first portion of the second signal electrode includes at least two sub-electrodes, and the sub-electrode of the first portion of the at least one second signal electrode is electrically connected with a second portion of the second signal electrode through the connection portion; And/or In at least one of the heterogeneous touch positioning areas, the second touch metal layer is provided with a connecting portion, the second portion of the second signal electrode comprises at least two sub-electrodes, and the sub-electrodes of the second portion of the at least one second signal electrode are electrically connected with the first portion of the second signal electrode through the connecting portion.
7. 7. The display panel of claim 6, wherein in at least one of the heterogeneous touch positioning areas, the second touch metal layer is further provided with a third portion of the first signal electrode, the first touch metal layer is provided with a bridge portion; along the first direction, the third part of the first signal electrode is clamped between two adjacent sub-electrodes of the first part of the second signal electrode or between two adjacent sub-electrodes of the second part of the second signal electrode; One of the first part and the second part of the first signal electrode is electrically connected with the adjacent third part of the first signal electrode through the bridging part, and the other one of the first part and the second part of the second signal electrode is electrically connected with the adjacent third part of the second signal electrode through a conductive structure positioned on the first touch metal layer or the second touch metal layer.
8. 8. The display panel of claim 3, wherein in at least one of the heterogeneous touch location areas, a first portion of the second signal electrode includes a plurality of sub-electrodes or a second portion of the second signal electrode includes a plurality of sub-electrodes, the first portion of the first signal electrode includes a plurality of sub-electrodes or the second portion of the first signal electrode includes a plurality of sub-electrodes, the second touch metal layer is provided with a third portion of the second signal electrode and a third portion of the first signal electrode, and the first touch metal layer is provided with a plurality of bridges; The third part of the first signal electrode is connected with the first part and the second part through different bridging parts, and the first part and the second part of the second signal electrode are connected through the third part.
9. 9. The display panel of claim 3, wherein in at least one of the heterogeneous touch location areas, a first portion of the second signal electrode includes a plurality of sub-electrodes or a second portion of the second signal electrode includes a plurality of sub-electrodes, the first portion of the first signal electrode includes a plurality of sub-electrodes or the second portion of the first signal electrode includes a plurality of sub-electrodes, the second touch metal layer is provided with a third portion of the second signal electrode, a third portion of the first signal electrode, and a plurality of connection parts; the third part of the second signal electrode is connected with the first part and the second part through different connecting parts, and the first part and the second part of the first signal electrode are connected through the third part.
10. 10. The display panel of claim 3, wherein at least one first signal channel comprises a first signal sub-channel located in two heterogeneous touch location areas adjacent along a first direction, the first signal sub-channel comprises a bridge portion located in the first touch metal layer, and the bridge portions are different in relative positions in the heterogeneous touch location areas.
11. 11. The display panel of claim 10, wherein a distribution trace of each of the bridge portions of at least one of the first signal sub-channels is non-parallel to the first direction.
12. 12. The display panel of claim 3, wherein at least one second signal channel comprises a second signal sub-channel located in two heterogeneous touch positioning areas adjacent along a second direction, the second signal sub-channel comprises a connecting portion located in the second touch metal layer, and the relative positions of the connecting portions in the heterogeneous touch positioning areas are different.
13. 13. The display panel of claim 12, wherein a distribution trace of each of the connection portions of at least one of the second signal sub-channels is non-parallel to the second direction.
14. 14. The display panel of claim 3, wherein in at least one of the heterogeneous touch positioning areas, the first signal path comprises a plurality of first signal sub-paths, and in the first direction, the second signal path is spaced between an end of the at least one first signal sub-path adjacent to the light-transmitting area and the light-transmitting area.
15. 15. The display panel according to any one of claims 3 to 12, wherein in the normal touch positioning area, the first touch metal layer is provided with a bridge portion, and the first portion and the second portion of the first signal electrode are electrically connected through the bridge portion; In the normal touch positioning area, the second touch metal layer is provided with a connecting part, and the first part and the second part of the second signal electrode are electrically connected through the connecting part.
16. 16. The display panel of claim 15, wherein in the normal touch location area, the number of the first portion of the first signal electrode, the second portion of the first signal electrode, and the bridge portion is one, and the number of the first portion of the second signal electrode, the second portion of the second signal electrode, and the connection portion is one.
17. 17. The display panel of claim 15, wherein in at least part of the normal touch location area, the number of the bridging parts is plural, a first part of the first signal electrodes comprises sub-electrodes corresponding to the plural bridging parts one to one, and a second part of the first signal electrodes comprises sub-electrodes corresponding to the plural bridging parts one to one; In at least part of the normal touch positioning area, the second touch metal layer further comprises a third part of a second signal electrode, the third part of the second signal electrode is located between adjacent sub-electrodes of the first part of the first signal electrode along the second direction, and the third part of the second signal electrode is connected with the first part of the second signal electrode and the second part of the second signal electrode through different connecting parts.
18. 18. The display panel according to claim 15, wherein in at least part of the normal touch location areas, the number of the connection parts is plural, the first part of the second signal electrode includes sub-electrodes in one-to-one correspondence with the plural connection parts, and the second part of the second signal electrode includes sub-electrodes in one-to-one correspondence with the plural connection parts; In at least part of the normal touch positioning area, the second touch metal layer further comprises a third part of a first signal electrode, the third part of the first signal electrode is located between adjacent sub-electrodes of the first part of the second signal electrode along the second direction, and the third part of the first signal electrode is connected with the first part of the first signal electrode and the second part of the first signal electrode through different bridging parts.
19. 19. The display panel of any one of claims 3-12, wherein the light-transmitting region intersects four touch-location regions, the four touch-location regions being distributed in two rows and two columns.
20. 20. A display device comprising the display panel of any one of claims 1 to 19.

Description

Display panel and display device Technical Field The disclosure relates to the technical field of display, in particular to a display panel and a display device. Background The display panel may implement touch control using FMLOC (Flexible Multi-Layer On Cell) technology. However, when the display panel adopts an aperture technology or an under-screen photographing technology, the touch performance near the light-transmitting area is poor. It should be noted that the information disclosed in the above background section is only for enhancing understanding of the background of the present disclosure and thus may include information that does not constitute prior art known to those of ordinary skill in the art. Disclosure of Invention The present disclosure aims to overcome the defects of the prior art, and provide a display panel and a display device, which improve the touch performance of a light-transmitting area. According to one aspect of the disclosure, a display panel is provided, which comprises a substrate base plate, a display layer and a touch layer which are sequentially stacked, wherein a display area of the display panel is provided with a light transmission area; The touch control layer is provided with a touch control channel, and the touch control channel comprises a first signal channel extending along a first direction and a second signal channel extending along a second direction, wherein the second direction is intersected with the first direction; The touch control channels adjacent to the light transmission area are heterogeneous touch control channels, and at least one heterogeneous touch control channel comprises a plurality of heterogeneous touch control sub-channels adjacent to the light transmission area; among the plurality of heterogeneous touch sub-channels of the heterogeneous touch channel, at least one of the heterogeneous touch sub-channels remains continuous. According to one embodiment of the disclosure, the touch layer includes a first touch metal layer, a touch insulating layer, and a second touch metal layer sequentially stacked on a side of the display layer away from the substrate; The first signal channel is provided with a plurality of first signal electrodes which are sequentially arranged along a first direction on the second touch metal layer, and two adjacent first signal electrodes are electrically connected through a conductive structure positioned on the first touch metal layer or the second touch metal layer; The second signal channel is provided with a plurality of second signal electrodes which are sequentially arranged along a second direction on the second touch metal layer, and two adjacent second signal electrodes are electrically connected through a conductive structure positioned on the first touch metal layer or the second touch metal layer. According to one embodiment of the disclosure, each of the first signal channels and each of the second signal channels define a plurality of touch location areas distributed in an array; forming a mutual capacitance between the first signal channel and the second signal channel through the touch positioning area; In the same touch positioning area, the display panel comprises a first part and a second part of a first signal electrode, which respectively belong to two adjacent first signal electrodes, and a first part and a second part of a second signal electrode, which respectively belong to two adjacent second signal electrodes, wherein the first part of the first signal electrode and the second part of the first signal electrode are electrically connected, and the first part of the second signal electrode and the second part of the second signal electrode are electrically connected. According to one embodiment of the disclosure, the touch positioning area intersected with the light-transmitting area is a heterogeneous touch positioning area; in at least one heterogeneous touch positioning area, the first touch metal layer is provided with a bridging part, a first part of the first signal electrode comprises at least two sub-electrodes, and the sub-electrode of the first part of at least one first signal electrode is electrically connected with a second part of the first signal electrode through the bridging part; And/or In at least one of the heterogeneous touch positioning areas, the first touch metal layer is provided with a bridging portion, the second portion of the first signal electrode comprises at least two sub-electrodes, and the sub-electrodes of the second portion of the at least one first signal electrode are electrically connected with the first portion of the first signal electrode through the bridging portion. According to one embodiment of the disclosure, in at least one heterogeneous touch positioning area, the second touch metal layer is provided with a third part and a connecting part of a second signal electrode, wherein the third part of the second signal electrode is clamped between tw