Display panel and display device

Abstract

The display panel and the display device belong 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) has a light-transmitting area (AA1); the touch layer (TT) is provided with a touch channel (TS), the 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), and the second direction (DH) intersects with the first direction (DV); wherein the touch channel (TS) adjacent to the light-transmitting area (AA1) is a heterogeneous touch channel (MTS), at least one of the heterogeneous touch channels (MTS) comprises a plurality of heterogeneous touch channels (MTS) adjacent to the light-transmitting area (AA1); in the plurality of heterogeneous touch channels (MTS) of the heterogeneous touch channel (MTS), at least one of the heterogeneous touch channels (MTS) is continuous. The display panel can improve the touch performance of the light-transmitting area.

Description

Technical Field

[0001] This disclosure relates to the field of display technology, and more specifically, to a display panel and a display device. Background Technology

[0002] Display panels can use FMLOC (Flexible Multi-Layer On Cell) technology to enable touch control. However, when display panels use punch-hole technology or under-display camera technology, the touch performance near the light-transmitting area is poor.

[0003] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art. Summary of the Invention

[0004] The purpose of this disclosure is to overcome the shortcomings of the prior art and provide a display panel and display device that improves the touch performance of the light-transmitting area.

[0005] According to one aspect of this disclosure, a display panel is provided, comprising a substrate, a display layer, and a touch layer stacked sequentially; the display area of ​​the display panel has a light-transmitting area;

[0006] The touch layer is provided with a touch channel, which includes a first signal channel extending along a first direction and a second signal channel extending along a second direction, wherein the second direction intersects the first direction;

[0007] Among them, the touch channel adjacent to the light-transmitting area is a heterogeneous touch channel, and at least one of the heterogeneous touch channels includes multiple heterogeneous touch sub-channels adjacent to the light-transmitting area;

[0008] In the plurality of heterogeneous touch subchannels of the heterogeneous touch channel, at least one of the heterogeneous touch subchannels remains continuous.

[0009] According to one embodiment of the present disclosure, the touch layer includes a first touch metal layer, a touch insulating layer, and a second touch metal layer sequentially stacked on the side of the display layer away from the substrate.

[0010] The first signal channel has a plurality of first signal electrodes arranged sequentially along a first direction in the second touch metal layer; two adjacent first signal electrodes are electrically connected through a conductive structure located in the first touch metal layer or the second touch metal layer.

[0011] The second signal channel has a plurality of second signal electrodes arranged sequentially along the second direction in the second touch metal layer; adjacent two second signal electrodes are electrically connected through a conductive structure located in the first touch metal layer or the second touch metal layer.

[0012] According to one embodiment of the present disclosure, each of the first signal channels and each of the second signal channels defines a plurality of touch positioning areas distributed in an array; a mutual capacitance is formed between the first signal channels and the second signal channels of the touch positioning areas;

[0013] In the same touch positioning area, the display panel includes a first part and a second part of the first signal electrode belonging to two adjacent first signal electrodes, and a first part and a second part of the second signal electrode belonging to two adjacent second signal electrodes; the first part and the second part of the first signal electrode are electrically connected, and the first part and the second part of the second signal electrode are electrically connected.

[0014] According to one embodiment of this disclosure, the touch positioning area intersecting with the light-transmitting area is a heterogeneous touch positioning area;

[0015] In at least one of the heterogeneous touch positioning areas, the first touch metal layer is provided with a bridging portion, the first part of the first signal electrode includes at least two sub-electrodes, and at least one sub-electrode of the first part of the first signal electrode is electrically connected to the second part of the first signal electrode through the bridging portion.

[0016] And / or,

[0017] In at least one of the heterogeneous touch positioning areas, the first touch metal layer is provided with a bridging portion, the second part of the first signal electrode includes at least two sub-electrodes, and at least one sub-electrode of the second part of the first signal electrode is electrically connected to the first part of the first signal electrode through the bridging portion.

[0018] According to one embodiment of the present disclosure, 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; along the second direction, 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.

[0019] One of the first portion and the second portion of the second signal electrode is electrically connected to the third portion of the adjacent second signal electrode via the connecting portion; the other of the first portion and the second portion of the second signal electrode is electrically connected to the third portion of the adjacent second signal electrode via a conductive structure located in the first touch metal layer or the second touch metal layer.

[0020] According to one embodiment of this disclosure, the touch positioning area intersecting with the light-transmitting area is a heterogeneous touch positioning area;

[0021] In at least one of the heterogeneous touch positioning areas, the second touch metal layer is provided with a connecting portion, the first part of the second signal electrode includes at least two sub-electrodes, and at least one sub-electrode of the first part of the second signal electrode is electrically connected to the second part of the second signal electrode through the connecting portion;

[0022] And / or,

[0023] In at least one of the heterogeneous touch positioning areas, the second touch metal layer is provided with a connecting portion, the second part of the second signal electrode includes at least two sub-electrodes, and at least one sub-electrode of the second part of the second signal electrode is electrically connected to the first part of the second signal electrode through the connecting portion.

[0024] According to one embodiment of the present disclosure, 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, and the first touch metal layer is provided with a bridging portion; along the first direction, the third portion of the first signal electrode is sandwiched between two adjacent sub-electrodes of the first portion of the second signal electrode or between two adjacent sub-electrodes of the second portion of the second signal electrode.

[0025] One of the first and second portions of the first signal electrode is electrically connected to the third portion of the adjacent first signal electrode via the bridging portion; the other of the first and second portions of the second signal electrode is electrically connected to the third portion of the adjacent second signal electrode via a conductive structure located in the first or second touch metal layer.

[0026] According to one embodiment of this disclosure, the touch positioning area intersecting with the light-transmitting area is a heterogeneous touch positioning area;

[0027] In at least one of the heterogeneous touch positioning areas, the first part of the second signal electrode includes multiple sub-electrodes or the second part of the second signal electrode includes multiple sub-electrodes, the first part of the first signal electrode includes multiple sub-electrodes or the second part of the first signal electrode includes multiple sub-electrodes, the second touch metal layer is provided with a third part of the second signal electrode and a third part of the first signal electrode, and the first touch metal layer is provided with multiple bridging portions.

[0028] The third part of the first signal electrode is connected to the first part and the second part through different bridging portions; the first part and the second part of the second signal electrode are connected through the third part.

[0029] According to one embodiment of this disclosure, the touch positioning area intersecting with the light-transmitting area is a heterogeneous touch positioning area;

[0030] In at least one of the heterogeneous touch positioning areas, the first part of the second signal electrode includes multiple sub-electrodes or the second part of the second signal electrode includes multiple sub-electrodes, the first part of the first signal electrode includes multiple sub-electrodes or the second part of the first signal electrode includes multiple sub-electrodes, and the second touch metal layer is provided with a third part of the second signal electrode, a third part of the first signal electrode and multiple connecting portions.

[0031] The third part of the second signal electrode is connected to the first part and the second part through different connecting parts; the first part and the second part of the first signal electrode are connected through the third part.

[0032] According to one embodiment of this disclosure, the touch positioning area intersecting with the light-transmitting area is a heterogeneous touch positioning area;

[0033] At least one first signal channel includes a first signal subchannel located in two adjacent heterogeneous touch positioning areas along a first direction; the first signal subchannel includes a bridging portion located in the first touch metal layer, and the bridging portions are located at different relative positions in their respective heterogeneous touch positioning areas.

[0034] According to one embodiment of this disclosure, the distribution trajectory of each of the bridging portions of at least one first signal subchannel is not parallel to the first direction.

[0035] According to one embodiment of this disclosure, the touch positioning area intersecting with the light-transmitting area is a heterogeneous touch positioning area;

[0036] At least one second signal channel includes a second signal subchannel located in two adjacent heterogeneous touch positioning areas along a second direction; the second signal subchannel includes a connection portion located in the second touch metal layer, and the connection portions are located at different relative positions in their respective heterogeneous touch positioning areas.

[0037] According to one embodiment of this disclosure, the distribution trajectory of each of the connecting portions of at least one second signal subchannel is not parallel to the second direction.

[0038] According to one embodiment of this disclosure, the touch positioning area intersecting with the light-transmitting area is a heterogeneous touch positioning area;

[0039] In at least one of the heterogeneous touch positioning areas, the first signal channel includes a plurality of first signal subchannels; along the first direction, at least one first signal subchannel is spaced apart from the end of the light-transmitting area near the light-transmitting area by a second signal channel.

[0040] According to one embodiment of this disclosure, the touch positioning area that does not intersect with the light-transmitting area is a normal touch positioning area;

[0041] In the normal touch positioning area, the first touch metal layer is provided with a bridging portion, and the first part and the second part of the first signal electrode are electrically connected through the bridging portion.

[0042] 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.

[0043] According to one embodiment of this disclosure, in the normal touch positioning area, the number of the first portion of the first signal electrode, the second portion of the first signal electrode, and the bridging 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 connecting portion is one.

[0044] According to one embodiment of this disclosure, in at least a portion of the normal touch positioning area, the number of bridging portions is multiple, a first portion of the first signal electrode includes sub-electrodes corresponding one-to-one with the multiple bridging portions, and a second portion of the first signal electrode includes sub-electrodes corresponding one-to-one with the multiple bridging portions; the bridging portions are electrically connected to the sub-electrodes of the corresponding first portion of the first signal electrode and the sub-electrodes of the second portion of the first signal electrode.

[0045] In at least part of the normal touch positioning area, the second touch metal layer further includes a third portion of the second signal electrode; along the second direction, the third portion of the second signal electrode is located between adjacent sub-electrodes of the first portion of the first signal electrode, and the third portion of the second signal electrode is connected to the first portion of the second signal electrode and the second portion of the second signal electrode through different connection portions.

[0046] According to one embodiment of this disclosure, in at least a portion of the normal touch positioning area, the number of the connecting portions is multiple, the first portion of the second signal electrode includes sub-electrodes corresponding one-to-one with the multiple connecting portions, and the second portion of the second signal electrode includes sub-electrodes corresponding one-to-one with the multiple connecting portions; the connecting portions are electrically connected to the sub-electrodes of the corresponding first portion of the second signal electrode and the sub-electrodes of the second portion of the second signal electrode.

[0047] In at least part of the normal touch positioning area, the second touch metal layer further includes a third portion of the first signal electrode; along the second direction, the third portion of the first signal electrode is located between adjacent sub-electrodes of the first portion of the second signal electrode, and the third portion of the first signal electrode is connected to the first portion of the first signal electrode and the second portion of the first signal electrode through different bridging portions.

[0048] According to one embodiment of this disclosure, the light-transmitting area intersects with four touch positioning areas, which are arranged in two rows and two columns.

[0049] According to another aspect of this disclosure, a display device is provided, including the display panel described above.

[0050] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0051] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure. It is obvious that the drawings described below are merely some embodiments of this disclosure, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0052] Figure 1 This is a schematic diagram of the overall structure of the display panel in one embodiment of this disclosure.

[0053] Figure 2 This is a partial structural diagram of a display panel in one embodiment of the present disclosure.

[0054] Figure 3 This is a schematic diagram of the overall structure of the display panel in one embodiment of this disclosure.

[0055] Figure 4 This is a schematic diagram of the structure of a display device in one embodiment of the present disclosure.

[0056] Figure 5 This is a partial structural diagram of a display panel in one embodiment of the present disclosure.

[0057] Figure 6 This is a schematic diagram of the structure of a display device in one embodiment of the present disclosure.

[0058] Figure 7 This is a partial structural diagram of the second touch metal layer in one embodiment of the present disclosure.

[0059] Figure 8 This is a partial structural diagram of the touch layer in one embodiment of the present disclosure.

[0060] Figure 9 This is a partial structural diagram of the normal touch positioning area in one embodiment of the present disclosure.

[0061] Figure 10 This is a partial structural diagram of the second touch metal layer within the normal touch positioning area in one embodiment of this disclosure.

[0062] Figure 11 This is a schematic diagram showing the distribution of the touch positioning area in one embodiment of this disclosure.

[0063] Figure 12-1 This is a schematic diagram illustrating the effect of the light-transmitting area on the touch layer in related technologies.

[0064] Figure 12-2 This is a partial structural diagram of the touch layer near the light-transmitting area in the related technology.

[0065] Figure 13 This is a schematic diagram illustrating the principle of at least one touch channel maintaining continuity by setting heterogeneous touch subchannels in one embodiment of the present disclosure.

[0066] Figure 14-1 This is a schematic diagram illustrating the design principle of a partial structure of the touch layer in one embodiment of this disclosure.

[0067] Figure 14-2 This is a schematic diagram of a partial structure of the touch layer in one embodiment of this disclosure.

[0068] Figure 15-1 This is a schematic diagram illustrating the design principle of a partial structure of the touch layer in one embodiment of this disclosure.

[0069] Figure 15-2This is a schematic diagram of a partial structure of the touch layer in one embodiment of this disclosure.

[0070] Figure 16-1 This is a schematic diagram illustrating the design principle of a partial structure of the touch layer in one embodiment of this disclosure.

[0071] Figure 16-2 This is a schematic diagram of a partial structure of the touch layer in one embodiment of this disclosure.

[0072] Figure 17 This is a schematic diagram illustrating, in one embodiment of the present disclosure, the various heterogeneous touch subchannels in at least one heterogeneous touch positioning area are designed to be completely blocked by the light-transmitting area.

[0073] Figure 18 This is a schematic diagram illustrating the principle of maintaining the continuity of at least one heterogeneous touch subchannel in at least one heterogeneous touch positioning area during the design phase by moving a bridging portion, as described in one embodiment of this disclosure.

[0074] Figure 19 This is a schematic diagram of a partial structure of the touch layer in one embodiment of this disclosure.

[0075] Figure 20 This is a schematic diagram illustrating, in one embodiment of the present disclosure, the various heterogeneous touch subchannels in at least one heterogeneous touch positioning area are designed to be completely blocked by the light-transmitting area.

[0076] Figure 21 This is a schematic diagram illustrating the principle of maintaining the continuity of at least one heterogeneous touch subchannel in at least one heterogeneous touch positioning area during the design phase by moving a bridging portion, as described in one embodiment of this disclosure.

[0077] Figure 22 This is a schematic diagram of a partial structure of the touch layer in one embodiment of this disclosure.

[0078] Figure 23 This is a schematic diagram of a structure in one embodiment of the present disclosure, in which the bridging portion adjacent to the light-transmitting area is removed during the design phase.

[0079] Figure 24 This is a schematic diagram of a partial structure of the touch layer in one embodiment of this disclosure.

[0080] Figure 25 This is a schematic diagram of a structure in which no touch subchannel is provided in each normal touch positioning area according to one embodiment of the present disclosure.

[0081] Figure 26 This is a schematic diagram of a structure in which a touch subchannel is provided in at least a portion of the normal touch positioning area according to one embodiment of the present disclosure.

[0082] The meanings of at least some of the symbols used in the attached figures are as follows:

[0083] AA, Display area; AA1, Transmitting area; AA2, Main display area; BB, Peripheral area; B1, Bonding area; DH, Second direction; DV, First direction; BP, Substrate; PNL, Display panel; TRW, Transmitter cable; PDC, Pixel driving circuit; EE, Display layer; TT, Touch layer; TMA, First touch metal layer; TMB, Second touch metal layer; TMI, Touch insulating layer; TS, Touch channel; TSA, Touch positioning area; Tx, First signal channel; TxB, Bridging portion; TxP, First signal electrode; TxPA, First part of the first signal electrode; TxPB, Second part of the first signal electrode; TxPC, Third part of the first signal electrode; SubTx, First signal subchannel; S ubTxPA, a sub-electrode of the first part of the first signal electrode; SubTxPB, a sub-electrode of the second part of the first signal electrode; Rx, the second signal channel; RxB, a connecting part; RxP, the second signal electrode; RxPA, the first part of the second signal electrode; RxPB, the second part of the second signal electrode; RxPC, the third part of the second signal electrode; SubRx, the second signal subchannel; SubRxPA, a sub-electrode of the first part of the second signal electrode; SubRxPB, a sub-electrode of the second part of the second signal electrode; MTS, heterogeneous touch channel; NTS, normal touch channel; SubMTS, heterogeneous touch subchannel; MTSA, heterogeneous touch positioning area; NTSA, normal touch positioning area. Detailed Implementation

[0084] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, they are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and therefore detailed descriptions of them will be omitted. Furthermore, the drawings are merely illustrative of this disclosure and are not necessarily drawn to scale.

[0085] Although relative terms such as "up" and "down" are used in this specification to describe the relative relationship of one component of an icon to another, these terms are used only for convenience, such as according to the orientation of the examples shown in the accompanying drawings. It is understood that if the device of the icon is flipped upside down, the component described as "up" will become the component described as "down." When a structure is "up" of another structure, it may mean that the structure is integrally formed on the other structure, or that the structure is "directly" mounted on the other structure, or that the structure is "indirectly" mounted on the other structure through another structure.

[0086] The terms “a,” “one,” “the,” “the,” and “at least one” are used to indicate the presence of one or more elements / components / etc.; the terms “including” and “having” are used to indicate an open-ended inclusion and to mean that there may be other elements / components / etc. in addition to the listed elements / components / etc.; the terms “first,” “second,” and “third,” etc., are used only as markers and are not a limitation on the number of objects.

[0087] See Figure 1 This disclosure provides a display panel PNL, including a substrate BP, a display layer EE, and a touch layer TT stacked sequentially. The display layer EE is provided with sub-pixels (PIX) for display and pixel driving circuits (PDC) for driving the sub-pixels (PIX); the touch layer TT is provided with touch channels (TS) for implementing touch control.

[0088] In some embodiments of this disclosure, the substrate BP can be an inorganic material or an organic material. For example, in one embodiment, the substrate BP can be made of glass materials such as soda-lime glass, quartz glass, or sapphire glass, or metal materials such as stainless steel, aluminum, or nickel. In another embodiment, the substrate BP can be made of polymethyl methacrylate (PMMA), polyvinyl alcohol (PVA), polyvinyl phenol (PVP), polyether sulfone (PES), polyimide, polyamide, polyacetal, polycarbonate (PC), polyethylene terephthalate (PET), polyethylene naphthalate (PEN), or combinations thereof. In yet another embodiment, the substrate BP can also be a flexible substrate BP, for example, the substrate BP can be made of polyimide (PI). The substrate BP can also be a composite of multiple materials. For example, in one embodiment of this disclosure, the substrate BP may include a bottom film, a pressure-sensitive adhesive layer, a first polyimide layer and a second polyimide layer stacked sequentially.

[0089] In this disclosure, the subpixels of the display layer EE can be self-emissive subpixels or light switches used to control the passage of light.

[0090] For example, in one embodiment of this disclosure, the display layer EE includes an array substrate and a color filter substrate disposed opposite each other, and a liquid crystal layer located between the array substrate and the color filter substrate; wherein the substrate BP can be reused as part of the array substrate. The array substrate is provided with a pixel driving circuit PDC for driving sub-pixels and pixel electrodes electrically connected to the pixel driving circuit PDC; the pixel electrodes, the liquid crystal layer, and a common electrode form an optical switch serving as a sub-pixel, and the common electrode can be disposed on either the array substrate or the color filter substrate. Thus, the display panel PNL can be a liquid crystal display panel. The pixel driving circuit PDC can control the voltage on the pixel electrodes, thereby controlling the change in the electric field between the pixel electrodes and the common electrode; under the control of the electric field of the pixel electrodes and the common electrode, the direction and degree of deflection or inversion of the liquid crystal can be changed, thereby controlling the change in the polarization direction of the light transmitted through the liquid crystal. In a display device employing this display panel PNL, by providing a polarizer that cooperates with the display panel PNL, the change in the polarization direction of the light ultimately manifests as a change in the degree of light transmission.

[0091] As another example, in another implementation, see [link to relevant documentation]. Figure 2 The display layer EE includes a driving circuit layer F100 and a pixel layer F200 stacked sequentially on one side of the substrate BP. The pixel layer F200 is provided with self-emissive light-emitting elements as sub-pixels, and the driving circuit layer F100 is provided with a pixel driving circuit PDC for driving the sub-pixels.

[0092] The driving circuit layer F100 is provided with pixel driving circuits for driving sub-pixels. In the driving circuit layer F100, any pixel driving circuit may include a transistor F100M and a storage capacitor. Further, the transistor F100M can be a thin-film transistor, which can be selected from top-gate, bottom-gate, or dual-gate thin-film transistors; the active layer of the thin-film transistor can be made of amorphous silicon semiconductor material, low-temperature polycrystalline silicon semiconductor material, metal-oxide semiconductor material, organic semiconductor material, or other types of semiconductor material; the thin-film transistor can be an N-type or P-type thin-film transistor.

[0093] It is understood that any two transistors in a pixel driving circuit can be of the same or different types. For example, in one embodiment, some transistors in a pixel driving circuit can be N-type transistors and some transistors can be P-type transistors. Further exemplarily, in another embodiment of this disclosure, in a pixel driving circuit, the active layer material of some transistors can be low-temperature polycrystalline silicon (LTPS) semiconductor material, and the active layer material of some transistors can be metal-oxide-semiconductor (MODS) semiconductor material. In some embodiments of this disclosure, the thin-film transistor is a LPS transistor. In other embodiments of this disclosure, some thin-film transistors are LPS transistors, and some thin-film transistors are MODS transistors.

[0094] Optionally, the driving circuit layer F100 may include a semiconductor layer SEMI, a gate insulating layer GI, a gate layer GT, an interlayer dielectric layer ILD, and a source / drain metal layer SD, stacked between the substrate BP and the pixel layer F200. Each thin-film transistor and storage capacitor can be formed from the semiconductor layer SEMI, gate insulating layer GI, gate layer GT, interlayer dielectric layer ILD, and source / drain metal layer SD. The positional relationship of each layer can be determined based on the thin-film transistor's layer structure. Further, the semiconductor layer SEMI can be used to form the channel region of the transistor; the gate layer can be used to form gate layer traces such as scan lines, reset control lines, and light emission control lines, or to form the gate of the transistor, or to form part or all of the electrode plates of the storage capacitor; the source / drain metal layer can be used to form source / drain metal layer traces such as data voltage lines and drive voltage lines, or to form part of the electrode plates of the storage capacitor.

[0095] In one example, the driving circuit layer F100 may include a semiconductor layer SEMI, a gate insulating layer GI, a gate layer GT, an interlayer dielectric layer ILD, and a source / drain metal layer SD stacked sequentially, thus forming a top-gate thin-film transistor.

[0096] In another example, the driving circuit layer F100 may include a gate layer GT, a gate insulating layer GI, a semiconductor layer SEMI, an interlayer dielectric layer ILD, and a source / drain metal layer SD stacked sequentially, thus forming a bottom-gate thin-film transistor.

[0097] In the display panel PNL of this disclosure embodiment, the gate layer can be one layer, or it can be configured as two or three layers as needed. In one example, the gate layer GT may include a first gate layer and a second gate layer, and the gate insulating layer GI may include a first gate insulating layer for isolating the semiconductor layer SEMI and the first gate layer, and a second gate insulating layer for isolating the first gate layer and the second gate layer. For example, the driving circuit layer F100 may include a semiconductor layer SEMI, a first gate insulating layer, a first gate layer, a second gate insulating layer, a second gate layer, an interlayer dielectric layer ILD, and a source / drain metal layer SD, which are sequentially stacked on one side of the substrate BP. In one example, the gate layer GT may include a first gate layer and a second gate layer, and the semiconductor layer SEMI may be sandwiched between the first gate layer and the second gate layer; the gate insulating layer GI may include a first gate insulating layer for isolating the semiconductor layer SEMI and the first gate layer, and a second gate insulating layer for isolating the second gate layer and the semiconductor layer SEMI. For example, the driving circuit layer F100 may include a first gate layer, a first gate insulating layer, a semiconductor layer SEMI, a second gate insulating layer, a second gate layer, an interlayer dielectric layer ILD, and a source / drain metal layer SD, sequentially stacked on one side of the substrate BP. This allows the formation of a transistor with a dual-gate structure. In one example, the semiconductor layer SEMI may include a low-temperature polysilicon semiconductor layer and a metal-oxide semiconductor layer; the gate layer includes a first gate layer and a second gate layer; and the gate insulating layer includes first and second gate insulating layers. The driving circuit layer F100 may include a low-temperature polysilicon semiconductor layer, a first gate insulating layer, a first gate layer, a metal-oxide semiconductor layer, a second gate insulating layer, a second gate layer, an interlayer dielectric layer ILD, and a source / drain metal layer SD, sequentially stacked on one side of the substrate BP, with insulating layers disposed between these layers. In one example, the semiconductor layer SEMI may include a low-temperature polysilicon semiconductor layer and a metal-oxide semiconductor layer; the gate layer includes first to third gate layers; and the gate insulating layer includes first to third gate insulating layers. The driving circuit layer F100 may include a low-temperature polysilicon semiconductor layer, a first gate insulating layer, a first gate layer, an insulating buffer layer, a second gate layer, a second gate insulating layer, a metal oxide semiconductor layer, a third gate insulating layer, a third gate layer, an interlayer dielectric layer ILD, and a source / drain metal layer SD, which are sequentially stacked on one side of the substrate BP.

[0098] In the display panel PNL of this disclosure, the source / drain metal layer can be one layer, or it can be configured as two or three layers as needed. In one example, the source / drain metal layer may include a first source / drain metal layer and a second source / drain metal layer sequentially stacked on the side of the interlayer dielectric layer (ILD) away from the substrate. An insulating layer, such as a passivation layer and / or a planarization layer, may be sandwiched between the first and second source / drain metal layers. In another example, the source / drain metal layer may include a first source / drain metal layer, a second source / drain metal layer, and a third source / drain metal layer sequentially stacked on the side of the interlayer dielectric layer (ILD) away from the substrate. An insulating layer, such as a passivation layer and / or a resin layer, may be sandwiched between the first and second source / drain metal layers. An insulating layer, such as a passivation layer and / or a planarization layer, may be sandwiched between the second and third source / drain metal layers.

[0099] Optionally, the driving circuit layer F100 may also include a passivation layer, which may be disposed on the surface of the source / drain metal layer SD away from the substrate BP, in order to protect the source / drain metal layer SD.

[0100] Optionally, the driving circuit layer F100 may further include a buffer material layer Buff disposed between the substrate BP and the semiconductor layer SEMI, wherein the semiconductor layer SEMI, the gate layer GT, etc., are all located on the side of the buffer material layer away from the substrate BP. The material of the buffer material layer can be an inorganic insulating material such as silicon oxide or silicon nitride. The buffer material layer can be a single inorganic material layer or multiple stacked inorganic material layers.

[0101] Optionally, the driving circuit layer F100 may further include a planarization layer PLN located between the source / drain metal layer SD and the pixel layer F200, the planarization layer PLN providing a planarized surface for the pixel electrode. Optionally, the material of the planarization layer PLN may be an organic material.

[0102] The pixel layer F200 may be provided with light-emitting elements electrically connected to the pixel driving circuit, and the light-emitting elements may serve as sub-pixels of the display panel. Thus, the pixel layer is provided with an array of light-emitting elements, and each light-emitting element emits light under the control of the pixel driving circuit. In this disclosure, the light-emitting elements may be organic light-emitting diodes (OLEDs), polymeric organic light-emitting diodes (PLEDs), micro LEDs, quantum dot-organic light-emitting diodes (QD-OLEDs), quantum dot light-emitting diodes (QLEDs), or other types of light-emitting elements. For example, if the light-emitting element is an organic light-emitting diode (OLED), then the display panel is an OLED display panel. Below, taking an organic light-emitting diode as an example, a feasible structure of the pixel layer is described exemplarily.

[0103] In this example, the pixel layer F200 can be disposed on the side of the driving circuit layer F200 away from the substrate F100. It may include a pixel electrode layer AND, a pixel definition layer PDL, a support pillar layer PS, an organic light-emitting functional layer EL, and a common electrode layer COML, stacked sequentially. The pixel electrode layer AND has multiple pixel electrodes in the display area of ​​the display panel. The pixel definition layer PDL has multiple through-holes in the display area, each corresponding to one of the pixel electrodes, with each pixel opening exposing at least a portion of the corresponding pixel electrode. The support pillar layer PS includes multiple support pillars in the display area, located on the surface of the pixel definition layer PDL away from the substrate F100, to support a fine metal mask (FMM) during the evaporation process. The organic light-emitting functional layer EL at least covers the pixel electrodes exposed by the pixel definition layer PDL. The organic light-emitting functional layer EL may include an organic electroluminescent material layer, and may include one or more of the following: a hole injection layer, a hole transport layer, an electron blocking layer, an electron transport layer, and an electron injection layer. The individual layers of the organic light-emitting functional layer (EL) can be fabricated using a vapor deposition process, and the pattern of each layer can be defined using a fine metal mask or an open mask during vapor deposition. A common electrode layer (COML) can cover the EL in the display area. Thus, the pixel electrode, the common electrode layer (COML), and the EL located between the pixel electrode and the common electrode layer (COML) form an organic light-emitting diode (OLED) F200D, and any one of these OLEDs can serve as a sub-pixel of the display panel.

[0104] Optionally, the pixel layer F200 may also include a light extraction layer located on the side of the common electrode layer COML away from the substrate F100 to enhance the light extraction efficiency of the organic light-emitting diode.

[0105] Optionally, the display layer EE may further include a thin-film encapsulation layer TFE. The thin-film encapsulation layer TFE is disposed on the surface of the pixel layer F200 away from the substrate F100, and may include alternately stacked inorganic and organic encapsulation layers. The touch layer TT is disposed on the side of the thin-film encapsulation layer TFE away from the substrate BP. The inorganic encapsulation layer effectively blocks external moisture and oxygen, preventing water and oxygen from invading the organic light-emitting functional layer EL and causing material degradation. Optionally, the edge of the inorganic encapsulation layer may be located in the peripheral region. The organic encapsulation layer is located between two adjacent inorganic encapsulation layers to achieve planarization and reduce stress between the inorganic encapsulation layers. The edge of the organic encapsulation layer may be located between the edge of the display area and the edge of the inorganic encapsulation layer. Exemplarily, the thin-film encapsulation layer TFE includes a first inorganic encapsulation layer CVD1, an organic encapsulation layer INK, and a second inorganic encapsulation layer CVD2, sequentially stacked on the side of the pixel layer F200 away from the substrate F100.

[0106] Figure 3 This is a top view of a display panel PNL according to an embodiment of this disclosure. See also... Figure 3 The display panel PNL may include a display area AA and a peripheral area BB surrounding the display area AA. The display area AA may include a main display area AA2 and at least one light-transmitting area AA1 on one side of the main display area AA2. The light transmittance of the light-transmitting area AA1 is greater than that of the main display area AA2. For example, the main display area AA2 surrounds the light-transmitting area AA1.

[0107] See Figure 4 and Figure 6 A display device using this display panel PNL may include at least one photosensitive element C300. The photosensitive element C300 may be configured one-to-one with a light-transmitting area AA1, and the photosensitive element C300 may face the corresponding light-transmitting area AA1 to receive light transmitted from the light-transmitting area AA1. The photosensitive element C300 may have a photosensitive area for sensing light, and the orthographic projection of the photosensitive area onto the substrate BP may be located within the light-transmitting area AA1. The photosensitive element C300 may be one or more light sensors, such as a camera, an optical fingerprint recognition chip, a light intensity sensor, etc. In some embodiments, the photosensitive element C300 may be a camera, such as a CCD (charge-coupled device) camera.

[0108] Optionally, see Figure 3The light-transmitting area AA1 can be embedded in the main display area AA2, that is, the main display area AA2 surrounds the light-transmitting area AA1. When there are multiple light-transmitting areas AA1, they can be distributed or arranged adjacently. Of course, in other embodiments of this disclosure, the light-transmitting area AA1 can also be located on one side of the main display area AA2; for example, the edge of the light-transmitting area AA1 can overlap with the inner edge of the peripheral area BB, so that the light-transmitting area AA1 is located at the edge of the display area AA.

[0109] Optionally, the shape of any light-transmitting area AA1 can be circular, oblong (with a rectangle in the middle and semicircles at both ends), square, rhombus, regular hexagon, or other shapes. In one embodiment of this disclosure, the shape of the light-transmitting area AA1 can be circular or oblong.

[0110] The number of light-transmitting areas AA1 can be one or more, depending on the configuration of the photosensitive component C300. In one example, the number of light-transmitting areas AA1 is one. Thus, the display device can be equipped with one photosensitive component C300, such as a camera or an optical fingerprint recognition chip. In another example, the number of light-transmitting areas AA1 is multiple. Thus, the display device can be equipped with multiple photosensitive components C300, and any two photosensitive components C300 can be the same or different. For example, the number of light-transmitting areas AA1 is three and arranged adjacent to each other. Thus, the display device can be equipped with different photosensitive components C300 corresponding one-to-one with the three light-transmitting areas AA1, such as an imaging camera, a depth camera, and an infrared camera.

[0111] In the embodiments disclosed herein, different technologies can be used to ensure the light transmittance performance of the light-transmitting area AA1, such as using hole-punch screen technology or under-display camera technology.

[0112] For example, in some embodiments of this disclosure, see Figure 4 and Figure 5 Within both the main display area AA2 and the light-transmitting area AA1, the pixel layer F200 can be equipped with light-emitting elements C200, enabling both the main display area AA2 and the light-transmitting area AA1 to display images. By placing a camera in the light-transmitting area AA1, the display device can achieve under-screen imaging, thereby increasing the screen-to-body ratio.

[0113] See Figure 5In one example, the display panel PNL may omit the pixel driving circuit C100 in the light-transmitting area AA1 to reduce the impact of the pixel driving circuit C100 on the light transmittance and improve the light transmittance of the light-transmitting area AA1. The pixel driving circuit C100 of each light-emitting element C200 located in the light-transmitting area AA1 can be located in the main display area AA2. Further, the pixel electrode F300D1 of each light-emitting element C200 located in the light-transmitting area AA1 includes an electrode body F300D11 and an electrode extension trace F300D12 connected to each other. The electrode body F300D11 is located in the light-transmitting area AA1 and serves as the cathode or anode of the light-emitting element C200; the electrode extension trace F300D12 is located in the main display area AA2 and the light-transmitting area AA1, with one end connected to the electrode body F300D11 and the other end electrically connected to the pixel driving circuit C100 corresponding to the light-emitting element C200. Furthermore, the electrode extension trace F300D12 can be made of a transparent conductive material, such as a lens metal oxide (e.g., indium tin oxide). The material of the electrode extension trace F300D12 can also be the same as the material of the electrode body F300D11 and be disposed in the same layer, which allows the electrode extension trace F300D12 and the electrode body F300D11 to be fabricated in the same process.

[0114] In other words, in this example, the light-emitting element C200 in the display panel PNL of this disclosure can be divided into a first light-emitting element C201 located in the main display area AA2 and a second light-emitting element C202 located in the light-transmitting area AA1, depending on its position. The pixel driving circuit C100 in the display panel PNL of this disclosure can be divided into a first pixel driving circuit C101 for driving the first light-emitting element C201 and a second pixel driving circuit C102 for driving the second light-emitting element C202, depending on the light-emitting element C200 it drives. The output terminal of the first pixel driving circuit C101 is electrically connected to the pixel electrode F300D1 of the first light-emitting element C201, and the output terminal of the second pixel driving circuit C102 is electrically connected to the electrode extension trace F300D12 of the pixel electrode F300D1 of the second light-emitting element C202. In other words, the two ends of the electrode extension trace F300D12 are respectively connected to the electrode body F300D11 of the pixel electrode F300D1 of the second light-emitting element C202 and the output terminal of the second pixel driving circuit C102. Optionally, the main display area AA2 may include an auxiliary display area adjacent to the light-transmitting area AA1, and the second pixel driving circuit C102 may be disposed in the auxiliary display area.

[0115] Of course, in another example of this disclosure, the second light-emitting element C202 and the second pixel driving circuit C102 can both be disposed in the light-transmitting area AA1, and the light transmittance of the light-transmitting area AA1 can be improved by adjusting the gap and layout area between the second pixel driving circuits C102.

[0116] For example, in some other embodiments of this disclosure, see [link to other documentation]. Figure 6 The display panel PNL has a light-transmitting hole in the light-transmitting area AA1. Furthermore, the display area AA is also provided with an encapsulation area surrounding the light-transmitting area AA1 to prevent water and oxygen from entering the main display area AA2 from the light-transmitting area AA1 and to prevent cracks from extending into the main display area AA2.

[0117] Figure 7 and Figure 8 This is a schematic diagram of the structure of the touch layer TT in an embodiment of this disclosure. See also... Figure 7 The touch layer TT has multiple touch channels TS, which include multiple second signal channels Rx extending along a second direction DH and multiple first signal channels Tx extending along a first direction DV; the second direction DH and the first direction DV intersect. In one embodiment, one of the second direction DH and the first direction DV is the row direction (the direction in which the scan traces extend) of the display panel PNL, and the other is the column direction (the direction in which the data voltage traces extend). For example, the second direction DH is the row direction of the display panel PNL, and the first direction DV is the column direction of the display panel PNL.

[0118] See Figure 7 Each first signal channel Tx and each second signal channel Rx defines multiple touch positioning areas (TSAs) distributed in the array. Touch capacitance is formed by the mutual capacitance between the first signal channels Tx and Rx of the touch positioning areas TSA. During touch, the capacitance value of the touch capacitance within the touch positioning area TSA changes in response to the touched object (e.g., a finger). The display device determines the touch position by detecting the changes in the touch capacitance in different touch positioning areas TSA.

[0119] In one embodiment of this disclosure, see Figure 7 and Figure 8The touch layer TT includes a first touch metal layer TMA, a touch insulating layer TMI, and a second touch metal layer TMB, which are sequentially stacked on one side of the display layer EE. The second signal channel Rx has multiple second signal electrodes RxP arranged sequentially along the second direction DH in the second touch metal layer TMB; adjacent second signal electrodes RxP are electrically connected through a conductive structure located in the first touch metal layer TMA or the second touch metal layer TMB. The first signal channel Tx has multiple first signal electrodes TxP arranged sequentially along the first direction DV in the second touch metal layer TMB; adjacent first signal electrodes TxP are electrically connected through a conductive structure located in the first touch metal layer TMA or the second touch metal layer TMB. See also Figure 9 In the touch positioning area TSA, an intercalation capacitor is formed between the edge of the second signal electrode RxP and the edge of the first signal electrode TxP. This intercalation capacitor serves as part of the touch capacitor within the touch positioning area TSA.

[0120] In one example, see Figure 7 and Figure 9Within the same touch positioning area (TSA), the display panel PNL includes a first portion (TxPA) and a second portion (TxPB) of a first signal electrode belonging to two adjacent first signal electrodes (TxP), and a first portion (RxPA) and a second portion (RxPB) of a second signal electrode belonging to two adjacent second signal electrodes (RxP). The first portion (TxPA) and the second portion (TxPB) of the first signal electrode are electrically connected through a conductive structure, and the first portion (RxPA) and the second portion (RxPB) of the second signal electrode are electrically connected. In two adjacent touch positioning areas (TSA) along the second direction (DH), the second portion (RxPB) of the second signal electrode in one touch positioning area (TSA) is adjacent to and connected to the first portion (RxPA) of the second signal electrode in the other touch positioning area (TSA), together forming a second signal electrode (RxP). Thus, the second signal electrode RxP located at one end of the second signal channel Rx may consist only of the first part RxPA of the second signal electrode, and the second signal electrode RxP located at the other end of the second signal channel Rx may consist only of the second part RxPB of the second signal electrode. The second signal electrode RxP not located at the end may include the first part RxPA and the second part RxPB of the second signal electrode. The first part RxPA and the second part RxPB of the second signal electrode are respectively located in two adjacent touch positioning areas TSA. In two adjacent touch positioning areas TSA along the first direction DV, the second part TxPB of the first signal electrode in one touch positioning area TSA is adjacent to and connected to the first part TxPA of the first signal electrode in the other touch positioning area TSA, together forming a first signal electrode TxP. Thus, the first signal electrode TxP located at one end of the first signal channel Tx may only include the first part TxPA of the first signal electrode, and the first signal electrode TxP located at the other end of the first signal channel Tx may only include the second part TxPB of the first signal electrode. The first signal electrode TxP at the non-end may include the first part TxPA and the second part TxPB. The first part TxPA and the second part TxPB of the first signal electrode are respectively located in two adjacent touch positioning areas TSA.

[0121] See Figure 10 The first signal channel Tx and the second signal channel Rx can be designed with a hollowed-out shape to reduce the impact on the light emitted by the PNL of the display panel and reduce the reflection of ambient light. Furthermore, the gap between the first signal channel Tx and the second signal channel Rx can be bent rather than straight, allowing adjacent first signal electrodes TxP and second signal electrodes RxP to interlock. This helps to eliminate the visibility of the boundary between the first signal electrode TxP and the second signal electrode RxP, improving the uniformity of the PNL of the display panel.

[0122] The touch layer TT can also be provided with touch traces, which can be located in the peripheral area BB and electrically connected to the touch channel TS, so as to transmit the signals of the first signal channel Tx and the second signal channel Rx to the control component of the display device; the control component of the display device can determine the touch position according to the signals transmitted by the touch traces.

[0123] In one embodiment of this disclosure, in the first portion TxPA and the second portion TxPB of the first signal electrode TxP, the first portion TxPA of the first signal electrode is close to the touch trace connected to the first signal channel Tx. In other words, the first signal electrode TxP located at the end of the first signal channel Tx is connected to the touch trace, and this first signal electrode TxP is the first portion TxPA of the first signal electrode. In the first portion RxPA and the second portion RxPB of the second signal electrode RxP, the first portion RxPA of the second signal electrode is close to the touch trace connected to the second signal channel Rx. In other words, the second signal electrode RxP located at the end of the second signal channel Rx is connected to the touch trace, and this second signal electrode RxP is the first portion RxPA of the second signal electrode.

[0124] In this disclosure, see Figure 11 Based on the relative positions of the touch positioning area TSA and the light-transmitting area AA1, the touch positioning area TSA can be divided into the normal touch positioning area NTSA and the heterogeneous touch positioning area MTSA. The normal touch positioning area NTSA does not intersect with the light-transmitting area AA1, while the heterogeneous touch positioning area MTSA intersects with it. In other words, the second signal electrode RxP and the first signal electrode TxP in the normal touch positioning area NTSA are not adjacent to the light-transmitting area AA1, and their structures can maintain their integrity. The second signal electrode RxP and the first signal electrode TxP in the heterogeneous touch positioning area MTSA are at least partially adjacent to the light-transmitting area AA1, and have gaps to avoid the light-transmitting area AA1. In some examples of this disclosure, whether the second signal electrode RxP or the first signal electrode TxP has an avoidance notch can be determined by whether the edge of the second signal electrode RxP or the edge of the first signal electrode TxP is directly adjacent to the light-transmitting area AA1. If the edge of a conductive structure is not directly adjacent to the light-transmitting area AA1, for example, if there are other conductive structures in between, it can be considered that the conductive structure remains intact and does not have an avoidance notch to avoid the light-transmitting area AA1. If the edge of a conductive structure is directly adjacent to the light-transmitting area AA1, it can be considered that the conductive structure has an avoidance notch to avoid the light-transmitting area AA1.

[0125] In one embodiment of this disclosure, see Figure 9In the normal touch positioning area NTSA, the first touch metal layer TMA is provided with a bridging portion TxB, through which the first part TxPA and the second part TxPB of the first signal electrode are connected; the second touch metal layer TMB is provided with a connecting portion RxB, through which the first part RxPA and the second part RxPB of the second signal electrode are connected. Thus, the connecting portion RxB and the bridging portion TxB overlap to form a mutual capacitance, which is also part of the touch capacitance in the normal touch positioning area NTSA.

[0126] In one embodiment of this disclosure, the touch layer TT can be implemented using FMLOC (Flexible Multi-Layer On Cell) technology, that is, the touch layer TT is prepared using the display layer EE as a substrate, rather than attaching the touch substrate to the display layer EE.

[0127] Figure 12-1 This is a partial schematic diagram of the principle of the touch layer TT avoiding the light-transmitting hole AA1 in related technologies. Figure 12-2 This is a partial structural diagram of the touch layer TT after avoiding the light-transmitting hole AA1 in related technologies. See also... Figure 12-1 The touch channel TS of the touch layer TT needs to avoid the light-transmitting area AA1, which results in at least one touch channel TS being blocked by the light-transmitting area AA1.

[0128] In related technologies, see Figure 12-2 When the display panel PNL uses punch-hole screen technology, the touch layer TT can be configured with transition traces surrounding the light-transmitting area AA1 (e.g., Figure 12-2 The PNL (Parallel Panel) uses two adapter lines (TRW1 and TRW2) to reconnect the isolated touch channels (TS). However, due to its encapsulation, the PNL lacks sufficient flatness around the light-transmitting area AA1, making the touch layer TT prone to short circuits or open circuits due to the cross-layer adapter traces. Furthermore, the adapter traces occupy significant layout space, affecting the pattern of the first signal electrode TxP or the second signal electrode RxP around the light-transmitting area AA1, thus impacting touch performance. Planar capacitors can form between different adapter traces. For example, adapter lines TRW1 and TRW2 need to be placed in the first touch metal layer TMA and the second touch metal layer TMB, respectively, forming planar capacitors at their overlap. This increases the touch capacitance within the heterogeneous touch positioning area MTSA (although the capacitance change remains essentially constant during touch response), affecting touch performance. When the PNL uses under-display camera technology, it is difficult to install double-layer adapter lines because the light-transmitting area AA1 has no border. These factors all contribute to the difficulty in maintaining stable and reliable touch performance of the touch layer TT when using FMLOC technology in a display panel PNL with a light-transmitting area AA1.

[0129] In the display panel PNL provided in the embodiments of this disclosure, see Figure 11 Touch channels can be categorized into normal touch channels (NTS) and heterogeneous touch channels (MTS) based on their relative positions to the light-transmitting area AA1. Specifically, touch channels TS not adjacent to the light-transmitting area AA1 are defined as normal touch channels (NTS), while touch channels TS adjacent to the light-transmitting area AA1 are defined as heterogeneous touch channels (MTS). In this embodiment, see [reference needed]. Figure 13 At least one heterogeneous touch channel (MTS) includes multiple heterogeneous touch subchannels (SubMTS) adjacent to the display area AA. Among the multiple heterogeneous touch subchannels (SubMTS) of the heterogeneous touch channel (MTS), at least one heterogeneous touch subchannel (SubMTS) remains continuous. This allows the heterogeneous touch channel (MTS) to be positioned within the heterogeneous touch positioning area (MTSA) while flexibly avoiding the light-transmitting area AA1, avoiding the need for or reducing the number of transition lines, especially avoiding the formation of planar capacitors due to double-layer transition lines, thereby reducing or eliminating the impact of the transition lines on the touch sensor. In this disclosure, the continuity of the heterogeneous touch subchannels (SubMTS) means that the heterogeneous touch subchannels (SubMTS) are connected between two adjacent conductive structures of the second touch metal layer (TMB) through a conductive connection located between the two conductive structures (this conductive connection is located in the first touch metal layer (TMA) or the second touch metal layer (TMB)), rather than using transition lines arranged in an arc along the edge of the light-transmitting area AA1.

[0130] As an example, a first signal channel Tx can be configured with multiple first signal subchannels SubTx within a heterogeneous touch positioning area MTSA. If the sub-electrodes of a first signal subchannel SubTx are all connected via a bridging portion TxB located in the first touch metal layer TMA, then the first signal subchannel SubTx is considered continuous. If at least two sub-electrodes of a first signal subchannel SubTx are connected via a transition trace arranged in an arc along the edge of the light-transmitting area AA1, then the first signal subchannel SubTx is considered discontinuous. It is understood that in some cases, heterogeneous touch subchannels SubMTS that are not continuous can still maintain electrical connection (i.e., normally transmit touch signals) via transition traces.

[0131] In the display panel PNL of this embodiment, two intersecting heterogeneous touch channels MTS (i.e., a first signal channel Tx and a second signal channel Rx) are provided in the same heterogeneous touch positioning area MTSA. In one example, one heterogeneous touch channel MTS in the same heterogeneous touch positioning area MTSA has multiple heterogeneous touch subchannels SubMTS, while the other heterogeneous touch channel MTS does not have any heterogeneous touch subchannels SubMTS (i.e., the number of heterogeneous touch subchannels SubMTS is 1). In another example, in the same heterogeneous touch positioning area MTSA, both heterogeneous touch channels MTS are provided with multiple heterogeneous touch subchannels SubMTS, and the number of heterogeneous touch subchannels SubMTS in each of the two heterogeneous touch channels MTS can be the same or different, for example, both can be two. In one example, in the same heterogeneous touch positioning area MTSA, one heterogeneous touch channel MTS can remain continuous while the other heterogeneous touch channel MTS can maintain the continuity of electrical signals through the transition traces around the light-transmitting area AA1. In another example, within the same heterogeneous touch positioning area (MTSA), both heterogeneous touch channels (MTS) can remain continuous.

[0132] In some embodiments of this disclosure, in a heterogeneous touch positioning area (MTSA), one electrode can be divided into multiple sub-electrodes, thereby forming different heterogeneous touch subchannels (SubMTS) through different sub-electrodes.

[0133] In some embodiments of this disclosure, the number of heterogeneous touch positioning areas (MTSAs) can be multiple, for example, 2 to 6. For example, the number of heterogeneous touch positioning areas (MTSAs) is four, arranged in two adjacent rows and two columns.

[0134] Figure 14-1 The design principle of a local structure of the touch layer TT in one embodiment of this disclosure is shown; Figure 14-2 A schematic diagram of a partial structure of the touch layer TT in one embodiment of this disclosure is shown.

[0135] See Figure 14-2 In one embodiment of this disclosure, in at least one heterogeneous touch positioning area MTSA, a first touch metal layer TMA is provided with a bridging portion TxB, a first portion TxPA of a first signal electrode includes at least two sub-electrodes SubTxPA, and at least one sub-electrode SubTxPA of the first portion of the first signal electrode is electrically connected to a second portion TxPB of the first signal electrode through the bridging portion TxB.

[0136] In one example, the sub-electrode SubTxPA of the first part of the first signal electrode furthest from the light-transmitting area AA1 can be connected to the second part TxPB of the first signal electrode through the bridging part TxB without setting a notch to avoid the light-transmitting area AA1.

[0137] Optionally, in at least one heterogeneous touch positioning area MTSA, the second touch metal layer TMB is provided with a third portion RxPC of the second signal electrode and a connecting portion RxB, with the connecting portion RxB overlapping the bridging portion TxB; along the second direction DH, the third portion RxPC of the second signal electrode is sandwiched between two adjacent sub-electrodes SubTxPA of the first portion of the first signal electrode. One of the first portion RxPA and the second portion RxPB of the second signal electrode is electrically connected to the third portion RxPC of the adjacent second signal electrode through the connecting portion RxB; the other of the first portion RxPA and the second portion RxPB of the second signal electrode is electrically connected to the third portion RxPC of the adjacent second signal electrode through a transition wire TRW located in the first touch metal layer TMA or the second touch metal layer TMB, or through the connecting portion RxB.

[0138] In one example, the adapter cable TRW is disposed on the second touch metal layer TMB, and there is a gap between the adapter cable TRW and the first signal channel Tx.

[0139] In one example, the adapter cable TRW is positioned along the edge of the light-transmitting area AA1.

[0140] See Figure 14-1 The design principle of the local structure of the touch layer TT shown, without considering the auxiliary design state of the light-transmitting area AA1 (the state during the design process, not the final layout), is as follows: The first part TxPA of the first signal electrode in at least one heterogeneous touch positioning area MTSA is divided into multiple sub-electrodes SubTxPA of the first part of the first signal electrode (two in the example). The second part TxPB of the first signal electrode is divided into multiple sub-electrodes SubTxPB of the second part of the first signal electrode, corresponding one-to-one with the sub-electrodes SubTxPA of the first part of the first signal electrode (e.g., two). The number of bridging portions TxB in the heterogeneous touch positioning area MTSA is the same as the number of sub-electrodes SubTxPA of the first part of the first signal electrode. The sub-electrodes SubTxPA of the first part of the first signal electrode and the sub-electrodes SubTxPB of the second part of the first signal electrode are connected through corresponding bridging portions TxB. The third part RxPC of the second signal electrode in the heterogeneous touch positioning area MTSA is connected to the first part RxPA and the second part RxPB of the second signal electrode through different connecting portions RxB. In the fabricated display panel PNL (i.e., in the final layout of the touch layer TT, see...), Figure 14-2The sub-electrode SubTxPA of the first part of the first signal electrode, the sub-electrode SubTxPB of the second part of the first signal electrode, and the bridging portion TxB located in the light-transmitting area AA1 are removed, so that the remaining portions of the first part TxPA and the remaining portions of the second part TxPB of the first signal electrode are connected by at least one bridging portion TxB. Simultaneously, the portions of the first part RxPA, the second part RxPB, the third part RxPC, and the connecting portion RxB of the second signal electrode located in the light-transmitting area AA1 are also removed. When the second signal channel Rx formed by the sequential connection of the first part RxPA, the third part RxPC, and the second part RxPB of the second signal electrode is blocked by the light-transmitting area AA1, a transition cable TRW is provided to keep the second signal channel Rx unobstructed, and the sub-electrode SubTxPA of the first part of the first signal electrode must also avoid the transition cable TRW to prevent the formation of a parallel plate capacitor.

[0141] In this disclosure, for the sake of convenience, the following can be used: Figure 14-2 The heterogeneous touch positioning area (MTSA) located in the upper left corner is named the first heterogeneous touch positioning area (MTSA). See, as an example... Figure 14-2 In the first heterogeneous touch positioning area MTSA, the first part TxPA of the first signal electrode includes two sub-electrodes SubTxPA of the first part of the first signal electrode arranged along the second direction DH. At least one sub-electrode SubTxPA of the first part of the first signal electrode is not affected by the light-transmitting area AA1 and is connected to the second part TxPB of the first signal electrode through the bridging portion TxB, thereby ensuring the smooth flow of the first signal channel Tx signal in the first heterogeneous touch positioning area MTSA. The other sub-electrode SubTxPA of the first part of the first signal electrode avoids the light-transmitting area AA1 and has a notch. In the first heterogeneous touch positioning area MTSA, if the first signal channel Tx does not avoid the light-transmitting area AA1, it should have two heterogeneous touch subchannels SubMTS. Each heterogeneous touch subchannel SubMTS includes a sub-electrode SubTxPA of the first part of the first signal electrode, a bridging part TxB, and a sub-electrode SubTxPB of the second part of the first signal electrode, connected in sequence. To avoid the light-transmitting area AA1, the heterogeneous touch subchannels SubMTS closer to the light-transmitting area AA1 are isolated, while the heterogeneous touch subchannels SubMTS farther from the light-transmitting area AA1 remain continuous. See also Figure 14-2In the first heterogeneous touch positioning area MTSA, the second signal channel Rx includes a first portion RxPA, a second portion RxPB, a third portion RxPC, and a connecting portion RxB of the second signal electrode located in the second touch metal layer TMB, as well as a transition cable TRW; wherein the bridging portion TxB and the connecting portion RxB are overlapped. Along the second direction DH, the first portion RxPA of the second signal electrode is located on the side of the sub-electrode SubTxPA of the first portion of the first signal electrode away from the light-transmitting area AA1, thus eliminating the need to provide a notch to avoid the light-transmitting area AA1. Along the second direction DH, the third portion RxPC of the second signal electrode is located between two adjacent sub-electrodes SubTxPA of the first portion of the first signal electrode, and is provided with a notch to avoid the light-transmitting area AA1. The first portion RxPA and the third portion RxPC of the second signal electrode are connected by the connecting portion RxB. The second part RxPB of the second signal electrode has a notch that avoids the light-transmitting area AA1, and the connection between the third part RxPC of the second signal electrode and the second part RxPB is interrupted by the light-transmitting area AA1. Therefore, the second part RxPB and the third part RxPC of the second signal electrode are connected by a transition wire TRW disposed along the edge of the light-transmitting area AA1. This transition wire TRW can be disposed on the first touch metal layer TMA or the second touch metal layer TMB. A wiring gap is reserved between the first signal electrode and the light-transmitting area AA1, and the transition wire TRW is disposed in this wiring gap. This avoids the formation of a planar capacitor between the transition wire TRW and the first signal channel Tx, which would excessively increase the capacitance value of the touch capacitor in the first heterogeneous touch positioning area MTSA, thereby ensuring touch performance while keeping the signals of the second signal channel Rx and the first signal channel Tx unobstructed.

[0142] See Figure 14-2 In one embodiment of this disclosure, in at least one heterogeneous touch positioning area MTSA, a first touch metal layer TMA is provided with a bridging portion TxB, and a second portion TxPB of the first signal electrode includes at least two sub-electrodes SubTxPB, and at least one sub-electrode SubTxPB of the second portion of the first signal electrode is electrically connected to a first portion TxPA of the first signal electrode through the bridging portion TxB. Furthermore, the sub-electrode SubTxPB of the second portion of the first signal electrode furthest from the light-transmitting area AA1 may be connected to the first portion TxPA of the first signal electrode through the bridging portion TxB without providing a notch to avoid the light-transmitting area AA1.

[0143] Furthermore, in at least one heterogeneous touch positioning area MTSA, the second touch metal layer TMB is provided with a third portion RxPC of the second signal electrode and a connecting portion RxB, with the connecting portion RxB overlapping the bridging portion TxB; along the second direction DH, the third portion RxPC of the second signal electrode is sandwiched between the sub-electrodes SubTxPB of the second portions of two adjacent first signal electrodes. One of the first portions RxPA and the second portions RxPB of the second signal electrode is electrically connected to the third portion RxPC of the adjacent second signal electrode through the connecting portion RxB; the other of the first portions RxPA and the second portions RxPB of the second signal electrode is electrically connected to the third portion RxPC of the adjacent second signal electrode through a transition wire TRW located in the first touch metal layer TMA or the second touch metal layer TMB, or through the connecting portion RxB.

[0144] See Figure 14-1 Without considering the auxiliary design of the light-transmitting area AA1, the first part TxPA of the first signal electrode in at least one heterogeneous touch positioning area MTSA is also divided into multiple sub-electrodes SubTxPA of the first part of the first signal electrode, corresponding one-to-one with the sub-electrodes SubTxPB of the second part of the multiple first signal electrodes (e.g., two). The number of bridging portions TxB in the heterogeneous touch positioning area MTSA is the same as the number of sub-electrodes SubTxPB of the second part of the first signal electrode. The sub-electrodes SubTxPB of the second part of the first signal electrode and the sub-electrodes SubTxPA of the first part of the first signal electrode are connected through corresponding bridging portions TxB. The third part RxPC of the second signal electrode in the heterogeneous touch positioning area MTSA is connected to the first part RxPA and the second part RxPB of the second signal electrode through different connecting portions RxB. In the fabricated display panel PNL, the portions of the sub-electrode SubTxPB of the second part of the first signal electrode, the sub-electrode SubTxPA of the first part of the first signal electrode, and the bridging portion TxB located in the light-transmitting area AA1 are removed, so that the remaining portions of the second part TxPB and the remaining portions of the first part TxPA of the first signal electrode are connected by at least one bridging portion TxB. Simultaneously, the portions of the first part RxPA, the second part RxPB, the third part RxPC, and the connecting portion RxB of the second signal electrode located in the light-transmitting area AA1 are also removed. When the second signal channel Rx formed by the sequential connection of the first part RxPA, the third part RxPC, and the second part RxPB of the second signal electrode is blocked by the light-transmitting area AA1, a transition cable TRW is provided to keep the second signal channel Rx unobstructed. Furthermore, the sub-electrode SubTxPB of the second part of the first signal electrode must avoid the transition cable TRW to prevent the formation of a planar capacitor.

[0145] In the examples disclosed herein, for the sake of convenience, it can be... Figure 14-2 The heterogeneous touch positioning area MTSA located in the lower left corner is named the second heterogeneous touch positioning area MTSA. As an example, in the second heterogeneous touch positioning area MTSA, the second part TxPB of the first signal electrode includes two sub-electrodes SubTxPB of the second part of the first signal electrode arranged along the second direction DH. At least one sub-electrode SubTxPB of the second part of the first signal electrode is not affected by the light-transmitting area AA1 and is connected to the first part TxPA of the first signal electrode through the bridging part TxB, thereby ensuring the smooth flow of the first signal channel Tx signal in the second heterogeneous touch positioning area MTSA. The heterogeneous touch subchannel SubMTS in which the sub-electrode SubTxPB of the second part of the other first signal electrode participates is isolated by the light-transmitting area AA1. For example, the sub-electrode SubTxPA of the first signal electrode to which the sub-electrode SubTxPB of the second part of the first signal electrode is connected is isolated by the light-transmitting area AA1; of course, the sub-electrode SubTxPB of the second part of the first signal electrode near the light-transmitting area AA1 itself can also be isolated by the light-transmitting area AA1 in other examples, thus having a gap.

[0146] See Figure 14-1 and Figure 14-2 In the second heterogeneous touch positioning area MTSA, the second signal channel Rx includes a first portion RxPA, a second portion RxPB, a third portion RxPC, and a connecting portion RxB of the second signal electrode located in the second touch metal layer TMB, as well as a transition cable TRW; wherein the bridging portion TxB and the connecting portion RxB are overlapped. Along the second direction DH, the first portion RxPA of the second signal electrode is located on the side of the sub-electrode SubTxPB of the second portion of the first signal electrode away from the light-transmitting area AA1, thus eliminating the need for a notch to avoid the light-transmitting area AA1. Along the second direction DH, the third portion RxPC of the second signal electrode is located between the sub-electrodes SubTxPB of two adjacent first signal electrodes and has a notch to avoid the light-transmitting area AA1. The first portion RxPA and the third portion RxPC of the second signal electrode are connected by the connecting portion RxB. The second portion RxPB of the second signal electrode has a notch to avoid the light-transmitting area AA1. If the connection between the third part RxPC and the second part RxPB of the second signal electrode is blocked by the light-transmitting area AA1 (e.g.) Figure 14-2(As illustrated in the example), the second part RxPB and the third part RxPC of the second signal electrode are connected by a transition wire TRW disposed along the edge of the light-transmitting area AA1. This transition wire TRW can be disposed in the first touch metal layer TMA or the second touch metal layer TMB. Specifically, a wiring gap is reserved between the sub-electrode SubTxPB of the second part of the first signal electrode between the third part RxPC and the second part RxPB and the light-transmitting area AA1, and the transition wire TRW is disposed in this wiring gap. This avoids the formation of a planar capacitor between the transition wire TRW and the first signal channel Tx, which would excessively increase the capacitance value of the touch capacitor in the second heterogeneous touch positioning area MTSA, thereby ensuring touch performance while maintaining unobstructed signals in the second signal channel Rx and the first signal channel Tx.

[0147] Figure 14-1 and Figure 14-2 This illustration demonstrates a scheme and principle in which a first signal channel Tx in at least one heterogeneous touch positioning area MTSA is configured with multiple heterogeneous touch subchannels SubMTS to avoid being completely blocked by the light-transmitting area AA1. The above design concept and principle can also be applied to other examples in this disclosure, for instance, by configuring a second signal channel Rx in at least one heterogeneous touch positioning area MTSA with multiple heterogeneous touch subchannels SubMTS to avoid being completely blocked by the light-transmitting area AA1. Figure 15-1 This diagram illustrates the design principle of a local design where the second signal channel Rx in at least one heterogeneous touch positioning area MTSA is configured with multiple heterogeneous touch subchannels SubMTS to avoid being completely blocked by the light-transmitting area AA1.

[0148] Figure 15-2 This diagram illustrates a partial structure in which the second signal channel Rx in at least one heterogeneous touch positioning area MTSA is configured with multiple heterogeneous touch subchannels SubMTS to avoid being completely blocked by the light-transmitting area AA1.

[0149] See Figure 15-2 In one embodiment of this disclosure, in at least one heterogeneous touch positioning area MTSA, the second touch metal layer TMB is provided with a connecting portion RxB. The first portion RxPA of the second signal electrode includes at least two sub-electrodes SubRxPA of the first portion of the second signal electrode, and at least one sub-electrode SubRxPA of the first portion of the second signal electrode is electrically connected to the second portion RxPB of the second signal electrode through the connecting portion RxB. Further, the sub-electrode SubRxPA of the first portion of the second signal electrode furthest from the light-transmitting area AA1 may be connected to the second portion RxPB of the second signal electrode through the connecting portion RxB without providing a notch to avoid the light-transmitting area AA1. At least some of the sub-electrodes SubRxPA of the remaining first portions of the second signal electrodes may be provided with a notch to avoid the light-transmitting area AA1; of course, a notch may not be provided.

[0150] Furthermore, in at least one heterogeneous touch positioning area MTSA, the second touch metal layer TMB is provided with a third portion TxPC of the first signal electrode, and the first touch metal layer TMA is provided with a bridging portion TxB, which overlaps with the connecting portion RxB. Along the first direction DV, the third portion TxPC of the first signal electrode is sandwiched between the sub-electrodes SubRxPA of the first portions of two adjacent second signal electrodes. One of the first portions TxPA and TxPB of the first signal electrode is electrically connected to the third portion TxPC of the adjacent first signal electrode through the bridging portion TxB; the other of the first portions TxPA and TxPB of the first signal electrode is electrically connected to the third portion TxPC of the adjacent first signal electrode through a transition wire TRW located in the first touch metal layer TMA or the second touch metal layer TMB. Of course, in some cases, they can also be connected through the bridging portion TxB.

[0151] Further, see Figure 15-1Without considering the auxiliary design of the light-transmitting area AA1, the second part RxPB of the second signal electrode in the heterogeneous touch positioning area MTSA is also divided into multiple sub-electrodes SubRxPB of the second part of the second signal electrode, corresponding one-to-one with the sub-electrodes SubRxPA of the first part of the two second signal electrodes (e.g., two). The number of connecting parts RxB in the heterogeneous touch positioning area MTSA is the same as the number of sub-electrodes SubRxPA of the first part of the second signal electrode. The sub-electrodes SubRxPA of the first part of the second signal electrode and the sub-electrodes SubRxPB of the second part of the second signal electrode are connected through corresponding connecting parts RxB. The third part TxPC of the first signal electrode in the heterogeneous touch positioning area MTSA is connected to the first part TxPA and the second part TxPB of the first signal electrode through different bridging parts TxB. In the fabricated display panel PNL, the portions of the sub-electrode SubRxPA of the first part of the second signal electrode, the sub-electrode SubRxPB of the second part of the second signal electrode, and the connecting portion RxB located in the light-transmitting area AA1 are removed, such that the remaining portions of the first part RxPA and the remaining portions of the second part RxPB of the second signal electrode are connected by at least one connecting portion RxB. Simultaneously, the portions of the first part TxPA, the second part TxPB, the third part TxPC of the first signal electrode, and the bridging portion TxB located in the light-transmitting area AA1 are also removed. When the first signal channel Tx formed by the sequential connection of the first part TxPA, the third part TxPC, and the second part TxPB of the first signal electrode is blocked by the light-transmitting area AA1, a transition cable TRW is provided to keep the first signal channel Tx unobstructed, and the sub-electrode SubRxPA of the first part of the second signal electrode must also avoid the transition cable TRW to prevent the formation of a planar capacitor.

[0152] As an example, for ease of explanation, Figure 15-2 The heterogeneous touch positioning area MTSA in the upper left corner is called the third heterogeneous touch positioning area MTSA. In the third heterogeneous touch positioning area MTSA, the first part RxPA of the second signal electrode includes two sub-electrodes SubRxPA of the first part of the second signal electrode arranged along the first direction DV. At least one sub-electrode SubRxPA of the first part of the second signal electrode is not affected by the light-transmitting area AA1 and is connected to the second part RxPB of the second signal electrode through the connecting part RxB, thereby ensuring the smooth flow of the second signal channel Rx signal in the heterogeneous touch positioning area MTSA1. The sub-electrode SubRxPA of the first part of the other second signal electrode avoids the light-transmitting area AA1 and has a notch.

[0153] In the third heterogeneous touch positioning area MTSA, the first signal channel Tx includes a first portion TxPA of the first signal electrode located in the second touch metal layer TMB, a second portion TxPB of the first signal electrode, a third portion TxPC of the first signal electrode, and a bridging portion TxB located in the first touch metal layer TMB, and includes a transition wire TRW. The connecting portion RxB and the bridging portion TxB are overlapped. Along the first direction DV, the first portion TxPA of the first signal electrode is located on the side of the sub-electrode SubRxPA of the first portion of the second signal electrode away from the light-transmitting area AA1, thus eliminating the need for a notch to avoid the light-transmitting area AA1. Along the first direction DV, the third portion TxPC of the first signal electrode is located between the sub-electrodes SubRxPA of the first portions of two adjacent second signal electrodes, and has a notch to avoid the light-transmitting area AA1. The first portion TxPA and the third portion TxPC of the first signal electrode are connected by the bridging portion TxB. The second part TxPB of the first signal electrode has a notch to avoid the light-transmitting area AA1, and the connection between the third part TxPC of the first signal electrode and the second part TxPB of the first signal electrode is interrupted by the light-transmitting area AA1. Therefore, the second part TxPB of the first signal electrode and the third part TxPC of the first signal electrode are connected by a transition wire TRW disposed along the edge of the light-transmitting area AA1. The transition wire TRW can be disposed in the first touch metal layer TMA or the second touch metal layer TMB. Among them, a wiring gap is reserved between the sub-electrode SubRxPA of the first part of the second signal electrode between the third part TxPC of the first signal electrode and the second part TxPB of the first signal electrode and the light-transmitting area AA1, and the transition wire TRW is disposed in the wiring gap; this can avoid the formation of a planar capacitor between the transition wire TRW and the second signal channel Rx, which would excessively increase the capacitance value of the touch capacitor in the third heterogeneous touch positioning area MTSA, thereby ensuring touch performance while keeping the signals of the first signal channel Tx and the second signal channel Rx unobstructed.

[0154] See Figure 15-2In one embodiment of this disclosure, in at least one heterogeneous touch positioning area MTSA, the second touch metal layer TMB is provided with a connecting portion RxB. The second portion RxPB of the second signal electrode includes at least two sub-electrodes SubRxPB of the second portion of the second signal electrode, and at least one sub-electrode SubRxPB of the second portion of the second signal electrode is electrically connected to the first portion RxPA of the second signal electrode through the connecting portion RxB. Further, the sub-electrode SubRxPB of the second portion of the second signal electrode furthest from the light-transmitting area AA1 may be connected to the first portion RxPA of the second signal electrode through the connecting portion RxB without providing a notch to avoid the light-transmitting area AA1. At least some of the sub-electrodes SubRxPB of the remaining second portions of the second signal electrodes may be provided with a notch to avoid the light-transmitting area AA1; of course, a notch to avoid the light-transmitting area AA1 may not be provided.

[0155] Furthermore, in at least one heterogeneous touch positioning area MTSA, the second touch metal layer TMB is provided with a third portion TxPC of the first signal electrode, and the first touch metal layer TMA is provided with a bridging portion TxB, which overlaps with the connecting portion RxB. Along the first direction DV, the third portion TxPC of the first signal electrode is sandwiched between the sub-electrodes SubRxPB of the second portions of two adjacent second signal electrodes. One of the first portion TxPA and the second portion TxPB of the first signal electrode is electrically connected to the third portion TxPC of the adjacent first signal electrode through the bridging portion TxB; the other of the first portion TxPA and the second portion TxPB of the first signal electrode is electrically connected to the third portion TxPC of the adjacent first signal electrode through a transfer wire TRW located in the first touch metal layer TMA or the second touch metal layer TMB; of course, in some cases, they can also be connected through the bridging portion TxB.

[0156] Further, see Figure 15-1Without considering the auxiliary design of the light-transmitting area AA1, the first part RxPA of the second signal electrode in the heterogeneous touch positioning area MTSA is also divided into multiple sub-electrodes SubRxPA of the first part of the second signal electrode, each corresponding to a sub-electrode SubRxPB of the second part of the second signal electrode (for example, two). The number of connecting parts RxB in the heterogeneous touch positioning area MTSA is the same as the number of sub-electrodes SubRxPB of the second part of the second signal electrode. The sub-electrodes SubRxPB of the second part of the second signal electrode and the sub-electrodes SubRxPA of the first part of the second signal electrode are connected through corresponding connecting parts RxB. The third part TxPC of the first signal electrode in the heterogeneous touch positioning area MTSA is connected to the first part TxPA and the second part TxPB of the first signal electrode through different bridging parts TxB. In the fabricated display panel PNL, the portions of the second part of the second signal electrode (SubRxPB), the first part of the second signal electrode (SubRxPA), and the connecting portion RxB located in the light-transmitting area AA1 are removed, such that the remaining portions of the second part of the second signal electrode (RxPB) and the first part of the second signal electrode (RxPA) are connected by at least one connecting portion RxB. Simultaneously, the portions of the first part of the first signal electrode (TxPA), the second part of the first signal electrode (TxPB), the third part of the first signal electrode (TxPC), and the bridging portion TxB located in the light-transmitting area AA1 are also removed. When the first signal channel Tx formed by the sequential connection of the first part of the first signal electrode (TxPA), the third part of the first signal electrode (TxPC), and the second part of the first signal electrode (TxPB) is blocked by the light-transmitting area AA1, a transition cable TRW is provided to keep the first signal channel Tx unobstructed. Furthermore, the second part of the second signal electrode (SubRxPB) must avoid the transition cable TRW to prevent the formation of a planar capacitor.

[0157] As an example, for ease of explanation, Figure 15-2 The heterogeneous touch positioning area MTSA in the upper right corner is called the fourth heterogeneous touch positioning area MTSA. In the fourth heterogeneous touch positioning area MTSA, the second part RxPB of the second signal electrode includes two sub-electrodes SubRxPB of the second part of the second signal electrode arranged along the first direction DV. At least one sub-electrode SubRxPB of the second part of the second signal electrode is not affected by the light-transmitting area AA1 and is connected to the first part RxPA of the second signal electrode through the connecting part RxB, thereby ensuring the smooth flow of the second signal channel Rx signal in the fourth heterogeneous touch positioning area MTSA. The sub-electrode SubRxPA of the first part of the second signal electrode to which the sub-electrode SubRxPB of the second part of the other second signal electrode is connected is separated by the light-transmitting area AA1.

[0158] See Figure 15-2 In the fourth heterogeneous touch positioning area MTSA, the first signal channel Tx includes a first portion TxPA, a second portion TxPB, and a third portion TxPC of a first signal electrode located in the second touch metal layer TMB, as well as a transition wire TRW and a bridging portion TxB; wherein the connecting portion RxB and the bridging portion TxB are overlapped. Along the first direction DV, the first portion TxPA of the first signal electrode is located on the side of the sub-electrode SubRxPB of the second portion of the second signal electrode away from the light-transmitting area AA1, thus eliminating the need to provide a notch to avoid the light-transmitting area AA1. Along the first direction DV, the third portion TxPC of the first signal electrode is located between the sub-electrodes SubRxPB of the second portions of two adjacent second signal electrodes, and is provided with a notch to avoid the light-transmitting area AA1. The first portion TxPA and the third portion TxPC of the first signal electrode are connected by the bridging portion TxB. The second part TxPB of the first signal electrode has a notch to avoid the light-transmitting area AA1, and the connection between the third part TxPC of the first signal electrode and the second part TxPB of the first signal electrode is interrupted by the light-transmitting area AA1. Therefore, the second part TxPB of the first signal electrode and the third part TxPC of the first signal electrode are connected by a transition wire TRW disposed along the edge of the light-transmitting area AA1. The transition wire TRW can be disposed in the first touch metal layer TMA or the second touch metal layer TMB. Among them, a wiring gap is reserved between the sub-electrode SubRxPB of the second part of the second signal electrode between the third part TxPC of the first signal electrode and the second part TxPB of the first signal electrode and the light-transmitting area AA1, and the transition wire TRW is disposed in the wiring gap; this can avoid the formation of a planar capacitor between the transition wire TRW and the second signal channel Rx, which would excessively increase the capacitance value of the touch capacitor in the fourth heterogeneous touch positioning area MTSA, thereby ensuring touch performance while keeping the signals of the first signal channel Tx and the second signal channel Rx unobstructed.

[0159] Figure 16-1 This diagram illustrates the design principle of a local design in which the second signal channel Rx and the first signal channel Tx in at least one heterogeneous touch positioning area MTSA are each provided with multiple heterogeneous touch subchannels SubMTS to avoid being completely blocked by the light-transmitting area AA1. Figure 16-2 This diagram illustrates a partial structure in which the second signal channel Rx and the first signal channel Tx in at least one heterogeneous touch positioning area MTSA are each provided with multiple heterogeneous touch subchannels SubMTS to avoid being completely blocked by the light-transmitting area AA1.

[0160] See Figure 16-2In one embodiment of this disclosure, in at least one heterogeneous touch positioning area MTSA, the first part RxPA of the second signal electrode includes multiple sub-electrodes SubRxPA or the second part RxPB of the second signal electrode includes multiple sub-electrodes SubRxPB, the first part TxPA of the first signal electrode includes multiple sub-electrodes SubTxPA or the second part TxPB of the first signal electrode includes multiple sub-electrodes SubTxPB, the second touch metal layer TMB is provided with the third part RxPC of the second signal electrode and the third part TxPC of the first signal electrode, and the first touch metal layer TMA is provided with multiple bridging portions TxB; the third part TxPC of the first signal electrode is connected to the first part TxPA and the second part TxPB through different bridging portions TxB; the first part RxPA and the second part RxPB of the second signal electrode are connected through the third part RxPC. In other words, in at least one heterogeneous touch positioning area MTSA, the first signal channel Tx includes multiple first signal subchannels SubTx, wherein at least one first signal subchannel SubTx includes a sub-electrode SubTxPA of the first part of the first signal electrode, a bridging portion TxB, a third part TxPC of the first signal electrode, a bridging portion TxB, and a sub-electrode SubTxPB of the second part of the first signal electrode connected in sequence, thereby ensuring the continuity of the first signal subchannel SubTx. The second signal channel Rx also includes multiple second signal subchannels SubRx, wherein at least one second signal subchannel SubRx includes a sub-electrode SubRxPA of the first part of the second signal electrode, a sub-electrode SubRxPB of the third part of the second signal electrode and a conductive structure connecting the three sub-electrodes. Any one of these conductive structures can be a connecting portion RxB disposed on the second touch metal layer TMB, or a transition wire TRW disposed on the first touch metal layer TMA or the second touch metal layer TMB, so as to ensure that the second signal subchannel SubRx remains electrically connected.

[0161] See Figure 16-2In another embodiment of this disclosure, in at least one heterogeneous touch positioning area MTSA, the first part RxPA of the second signal electrode includes multiple sub-electrodes SubRxPA or the second part RxPB of the second signal electrode includes multiple sub-electrodes SubRxPB, the first part TxPA of the first signal electrode includes multiple sub-electrodes SubTxPA or the second part TxPB of the first signal electrode includes multiple sub-electrodes SubTxPB, and the second touch metal layer TMB is provided with a third part RxPC of the second signal electrode, a third part TxPC of the first signal electrode and multiple connecting parts RxB; the third part RxPC of the second signal electrode is connected to the first part RxPA and the second part RxPB through different connecting parts RxB; the first part TxPA and the second part TxPB of the first signal electrode are connected through the third part TxPC. In other words, in at least one heterogeneous touch positioning area MTSA, the second signal channel Rx includes multiple second signal subchannels SubRx, wherein at least one second signal subchannel SubRx includes a sub-electrode SubRxPA of the first part of the second signal electrode, a connecting part RxB, a third part RxPC of the second signal electrode, and a sub-electrode SubRxPB of the second part of the second signal electrode, which are connected in sequence, thereby ensuring the continuity of the second signal subchannel SubRx. The first signal channel Tx also includes multiple first signal subchannels SubTx, wherein at least one first signal subchannel SubTx includes a sub-electrode SubTxPA of the first part of the first signal electrode, a third part TxPC of the first signal electrode, and a sub-electrode SubTxPB of the second part of the first signal electrode, as well as a conductive structure connecting the three sub-electrodes. Any one of these conductive structures can be a bridging part TxB disposed on the first touch metal layer TMA, or a transition wire TRW disposed on the first touch metal layer TMA or the second touch metal layer TMA, so as to ensure that the first signal subchannel SubTx remains electrically connected.

[0162] As an example, Figure 16-1 and Figure 16-2 The heterogeneous touch positioning area MTSA in the upper left corner is called the fifth heterogeneous touch positioning area MTSA, the heterogeneous touch positioning area MTSA in the lower left corner is called the sixth heterogeneous touch positioning area MTSA, the heterogeneous touch positioning area MTSA in the upper right corner is called the seventh heterogeneous touch positioning area MTSA, and the heterogeneous touch positioning area MTSA in the lower right corner is called the eighth heterogeneous touch positioning area MTSA. The light-transmitting area AA1 intersects with the fifth, sixth, seventh, and eighth heterogeneous touch positioning areas MTSA. Without considering the auxiliary design of the light-transmitting area AA1, such as... Figure 16-1As shown, each heterogeneous touch positioning area (MTSA) has a first signal channel Tx comprising two first signal subchannels SubTx, and each second signal channel Rx comprising two second signal subchannels SubRx. Specifically, in this auxiliary design state, the first part TxPA of the first signal electrode in the heterogeneous touch positioning area (MTSA) includes sub-electrodes SubTxPA belonging to the first parts of the first signal electrodes of the two first signal subchannels SubTx, the second part TxPB of the first signal electrode includes sub-electrodes SubTxPB belonging to the second parts of the two first signal electrodes of the two first signal subchannels SubTx, the heterogeneous touch positioning area (MTSA) also includes a third part TxPC belonging to the two first signal electrodes of the two first signal subchannels SubTx, and four bridging portions TxB belonging to the two first signal subchannels SubTx. Each first signal subchannel SubTx includes a sub-electrode SubTxPA of the first part of the first signal electrode, a bridging portion TxB, a third part TxPC of the first signal electrode, a bridging portion TxB, and a sub-electrode SubTxPB of the second part of the first signal electrode, connected sequentially. In this auxiliary design state, the first portion RxPA of the second signal electrode in the heterogeneous touch positioning area MTSA includes sub-electrodes SubRxPA belonging to the first portions of the second signal electrodes of the two second signal subchannels SubRx, respectively. The second portion RxPB of the second signal electrode includes sub-electrodes SubRxPB belonging to the second portions of the two second signal electrodes of the two second signal subchannels SubRx, respectively. The heterogeneous touch positioning area MTSA also includes a third portion RxPC belonging to the two second signal electrodes of the two second signal subchannels SubRx, respectively, and four connecting portions RxB belonging to the two second signal subchannels SubRx, respectively. Each second signal subchannel SubRx includes a sub-electrode SubRxPA of the first portion of the second signal electrode, a connecting portion RxB, a third portion RxPC of the second signal electrode, a connecting portion RxB, and a sub-electrode SubRxPB of the second portion of the second signal electrode, connected sequentially. See also the display panel PNL of this embodiment. Figure 16-2 The portions of the first signal channel Tx and the second signal channel Rx located in the light-transmitting area AA1 are removed, and a transition cable TRW is added if necessary to ensure that at least one second signal subchannel SubRx and at least one first signal subchannel SubTx in the heterogeneous touch positioning area MTSA remain electrically connected. Specifically, in the heterogeneous touch positioning area MTSA, at least one second signal subchannel SubRx or at least one first signal subchannel SubTx remains continuous rather than being connected via a transition cable TRW to achieve electrical connection, thereby reducing the number of transition cables TRW. Figure 16-2The diagram shows the patterns of the first signal channel Tx and the second signal channel Rx in the fifth heterogeneous touch positioning area MTSA to the eighth heterogeneous touch positioning area MTSA of the display panel PNL in this example.

[0163] See Figure 16-2 In the fifth heterogeneous touch positioning area (MTSA), a first signal subchannel SubTx remains continuous, and a second signal subchannel SubRx remains electrically connected via a transition cable TRW. Specifically, the first signal subchannel SubTx of the sub-electrode SubRxPA, which is close to the first part of the second signal electrode, remains continuous; the third part RxPC of a second signal electrode is connected to the sub-electrode SubRxPA of the first part of the second signal electrode via a connecting part RxB, and is also connected to the sub-electrode SubRxPB of the second part of the second signal electrode via a transition cable TRW. In the sixth heterogeneous touch positioning area (MTSA), a first signal subchannel SubTx remains continuous, and a second signal subchannel SubRx remains continuous. In the seventh heterogeneous touch positioning area (MTSA), a first signal subchannel SubTx remains continuous, and a second signal subchannel SubRx remains electrically connected via a transition cable TRW. Specifically, the first signal subchannel SubTx of the sub-electrode SubRxPB near the second part of the second signal electrode remains continuous; the third part RxPC of a second signal electrode is connected to the sub-electrode SubRxPA of the first part of a second signal electrode via an adapter cable TRW, and is connected to the sub-electrode SubRxPB of the second part of a second signal electrode via a connecting part RxB. In the eighth heterogeneous touch positioning area MTSA, one first signal subchannel SubTx remains continuous, and one second signal subchannel SubRx remains continuous.

[0164] See Figure 19 and Figure 22 In some embodiments of this disclosure, the bridging portion TxB or connecting portion RxB in the heterogeneous touch subchannel SubMTS can be offset to avoid the light-transmitting area AA1, so that at least one of the first signal subchannel SubTx and the second signal subchannel SubRx remains continuous; thus, at least one first signal subchannel SubTx has multiple bridging portions TxB and the distribution trajectory of each bridging portion TxB is not parallel to the first direction DV (e.g., a broken line), or at least one second signal subchannel SubRx has multiple connecting portions RxB and the distribution trajectory of each connecting portion RxB is not parallel to the second direction DH (e.g., a broken line).

[0165] See Figure 19 and Figure 22In one embodiment of this disclosure, at least one first signal channel Tx has at least one continuous first signal subchannel SubTx in two adjacent heterogeneous touch positioning areas (MTSAs) along the first direction DV. The continuous first signal subchannel SubTx includes electrodes located in the second touch metal layer TMB (e.g., sub-electrodes SubTxPA of the first portion of the first signal electrode and sub-electrodes SubTxPB of the second portion of the first signal electrode) and bridging portions TxB connecting the electrodes and located in the first touch metal layer TMB. The relative positions of each bridging portion TxB of the continuous first signal subchannel SubTx within their respective heterogeneous touch positioning areas (MTSAs) are different. In embodiments of this disclosure, the relative position of the bridging portion TxB within the heterogeneous touch positioning area (MTSA) can refer to the distance between the bridging portion TxB and each vertex or edge of the heterogeneous touch positioning area (MTSA). In one example, the position vector of the bridging part TxB can be used to represent the relative position of the bridging part TxB in the heterogeneous touch positioning area MTSA. The position vector can include four distance parameters, which represent the distances between the four vertices of the heterogeneous touch positioning area MTSA and the center of the bridging part TxB, respectively.

[0166] Figure 17 , Figure 18 , Figure 20 and Figure 21 This is a schematic diagram illustrating a partial design of this embodiment of the present disclosure. In the design process of the display panel PNL of this embodiment, the first signal channel Tx and the second signal channel Rx in the heterogeneous touch positioning area MTSA can be designed without considering the light-transmitting area AA1 (e.g., Figure 17 and Figure 20 As shown), the initial positions of each bridging section TxB are determined; then the factors of the light-transmitting area AA1 are taken into account, and one of the first signal subchannels SubTx is kept continuous (as shown). Figure 18 and Figure 21 As shown). In this process, as Figure 18 and Figure 21 If the first signal subchannel SubTx, which is expected to remain continuous, is interrupted by the light-transmitting area AA1, the position of the bridging portion TxB on the first signal subchannel SubTx can be changed, and the shape of each sub-electrode of the first signal subchannel SubTx can be adaptively changed so that each bridging portion TxB of the first signal subchannel SubTx is located outside the light-transmitting area AA1. This allows the first signal subchannel SubTx to remain continuous through deformation. This method can ensure the continuity of the first signal subchannel SubTx while reducing the design difficulty of each first signal channel Tx and second signal channel Rx, giving the display panel PNL more flexibility in the design process.

[0167] In one example, see Figure 18 and Figure 19 At least one bridging portion TxB in the heterogeneous touch positioning area MTSA can be offset along the second direction DH. Thus, in the first signal subchannel SubTx in which the offset bridging portion TxB participates, the distribution trajectory of each bridging portion TxB is not parallel to the first direction DV. Therefore, in the display panel PNL of this example, see... Figure 19 At least one first signal channel Tx has a first signal subchannel SubTx in two adjacent heterogeneous touch positioning areas MTSA along the first direction DV. The first signal subchannel SubTx has at least two bridging portions TxB, and the distribution trajectory of the bridging portions TxB of the first signal subchannel SubTx is not parallel to the first direction DV. This offset method can reduce the impact on each electrode of the first signal channel Tx and help to keep the electrodes of the first signal subchannel SubTx as large as possible.

[0168] In another example, see Figure 21 and Figure 22 At least one bridging portion TxB in the heterogeneous touch positioning area MTSA can be offset along the first direction DV. Thus, in two adjacent heterogeneous touch positioning areas MTSA along the second direction DH, the distribution trajectory of each bridging portion TxB is not parallel to the second direction DH. For details, see... Figure 22 At least one second signal channel Rx includes a second signal subchannel SubRx located in two heterogeneous touch positioning areas MTSA adjacent along the second direction DH, wherein the distribution trajectory of the connecting portion RxB in the second signal subchannel SubRx (i.e. the distribution trajectory of each bridging portion TxB overlapping with the second signal subchannel SubRx) is not parallel to the second direction DH.

[0169] Of course, in other embodiments of this disclosure, at least one bridging portion TxB in the heterogeneous touch positioning area MTSA can be offset simultaneously in the first direction DV and the second direction DH.

[0170] In another embodiment of this disclosure, the connecting portion RxB of the second signal channel Rx can be moved to avoid all connecting portions RxB being blocked by the light-transmitting area AA1. In other words, at least one second signal channel Rx includes a second signal subchannel SubRx located in two adjacent heterogeneous touch positioning areas MTSA along the second direction DH; the second signal subchannel SubRx includes a connecting portion RxB located in the second touch metal layer TMB, and the relative positions of the connecting portions RxB in their respective heterogeneous touch positioning areas MTSA are different. In one example, the distribution trajectory of each connecting portion RxB of at least one second signal subchannel SubRx is not parallel to the second direction DH.

[0171] Figure 23 This is a schematic diagram illustrating a partial design of one embodiment of the present disclosure. Figure 24 This is a partial structural diagram of the touch layer TT in one embodiment of this disclosure. See also... Figure 24 In one embodiment of this disclosure, in at least one heterogeneous touch positioning area MTSA, the first signal channel Tx includes a plurality of first signal subchannels SubTx; along the first direction DV, at least one first signal subchannel SubTx is spaced apart from the end of the light-transmitting area AA1 by a second signal channel Rx.

[0172] See Figure 23 In the heterogeneous touch positioning area MTSA, at the adjacent position DD near the light-transmitting area AA1, if the bridging portion TxB cannot be reliably set due to its proximity to the light-transmitting area AA1, then the bridging portion TxB can be omitted at this adjacent position DD. In this way, the electrodes that should originally be part of the first signal subchannel SubTx cannot become part of the first signal subchannel SubTx through the bridging portion TxB; these electrodes can be connected to the second signal channel Rx and become part of the second signal channel Rx. Thus, as... Figure 24 As shown, this arrangement creates a second signal channel Rx between at least a portion of the first signal subchannel SubTx and the light-transmitting area AA1. This arrangement eliminates the need for electrodes that are too small to avoid the light-transmitting area AA1 to be connected to the bridging portion TxB vias, avoiding the manufacturing difficulties caused by placing vias too close to the light-transmitting area AA1. Furthermore, incorporating this portion of the electrode into the second signal channel Rx improves the stability of the second signal channel Rx, ensuring its unobstructed flow.

[0173] As an example, see Figure 23Without considering the auxiliary design of the light-transmitting area AA1, the first signal channel Tx in the heterogeneous touch positioning area MTSA includes two first signal subchannels SubTx; wherein the first signal subchannel SubTx may include a sub-electrode SubTxPA of the first part of the first signal electrode, a bridging part TxB, and a sub-electrode SubTxPB of the second part of the first signal electrode connected in sequence. The second signal channel Rx in the heterogeneous touch positioning area MTSA includes a first part RxPA of the second signal electrode, a connecting part RxB, a third part RxPC of the second signal electrode, a connecting part RxB, and a second part RxPB of the second signal electrode connected in sequence. The third part RxPC of the second signal electrode is located between the two first signal subchannels SubTx. In the display panel PNL of this example, the portions where the first signal channels Tx and Rx of the heterogeneous touch positioning area MTSA intersect with the light-transmitting area AA1 are removed. Figure 23 In the heterogeneous touch positioning area MTSA shown in the lower left corner, the sub-electrode SubTxPA of the first part of the first signal electrode of the first signal subchannel SubTx, which is separated by the light-transmitting area AA1, has a notch to avoid the light-transmitting area AA1, and retains only a very small portion of itself. Theoretically, the sub-electrode SubTxPA of the first part of the first signal electrode can be electrically connected to the sub-electrode SubTxPB of the second part of the first signal electrode through the bridging part TxB, thereby making the end of the separated first signal subchannel SubTx close to the light-transmitting area AA1. However, when the sub-electrode SubTxPA of the first part of the first signal electrode is connected to the bridging part TxB, the via is very close to the light-transmitting area AA1, which is inconvenient to set. Therefore, in the display panel PNL of this example, Figure 24 In the heterogeneous touch positioning area MTSA shown in the lower left corner, the sub-electrode SubTxPA, which should be the first part of the first signal electrode, can omit the bridging portion TxB. This sub-electrode can be disconnected from the sub-electrode SubTxPB of the second part of the first signal electrode, and instead connected to the first part RxPA and the third part RxPC of the second signal electrode, which are disposed in the same layer and adjacent to each other, thus becoming part of the second signal channel Rx. In this way, Figure 24 In the heterogeneous touch positioning area MTSA shown in the lower left corner, the first signal subchannel SubTx, which is isolated, is separated from the light-transmitting area AA1 by a second signal channel Rx. This avoids the need for vias while ensuring the unobstructed flow of the second signal channel Rx.

[0174] In one embodiment of this disclosure, see Figure 9In the normal touch positioning area NTSA, the first touch metal layer TMA is provided with a bridging part TxB, and the first part TxPA and the second part TxPB of the first signal electrode are electrically connected through the bridging part TxB; in the normal touch positioning area NTSA, the second touch metal layer TMB is provided with a connecting part RxB, and the first part RxPA and the second part RxPB of the second signal electrode are electrically connected through the connecting part RxB.

[0175] In the normal touch positioning area NTSA, the number of the first part TxPA, the second part TxPB, and the bridging part TxB of the first signal electrode is one, and the number of the first part RxPA, the second part RxPB, and the connecting part RxB of the second signal electrode is one. In other words, in the normal touch positioning area NTSA, the second signal channel Rx can include only one path, or the second signal channel Rx can maintain only one path. In the heterogeneous touch positioning area MTSA, the first signal subchannel SubTx of the first signal channel Tx is re-merged in the normal touch positioning area NTSA, and the second signal subchannel SubRx of the second signal channel Rx is re-merged in the normal touch positioning area NTSA. In other words, each heterogeneous touch positioning area MTSA can be provided with a touch subchannel (e.g., the first signal subchannel SubTx or the second signal subchannel SubRx) to avoid the light-transmitting area AA1, while each touch channel TS in each normal touch positioning area NTSA does not have a touch subchannel.

[0176] In another embodiment of this disclosure, the touch channel TS may also be provided with multiple touch sub-channels in at least a portion of the normal touch positioning area NTSA. For example, each touch positioning area TSA covered by at least one heterogeneous touch channel MTS is provided with a touch sub-channel.

[0177] In one example, see Figure 26In at least a portion of the normal touch positioning area NTSA, there are multiple bridging portions TxB. The first part TxPA of the first signal electrode includes sub-electrodes SubTxPA corresponding one-to-one with the multiple bridging portions TxB. The second part TxPB of the first signal electrode includes sub-electrodes SubTxPB corresponding one-to-one with the multiple bridging portions TxB. The bridging portions TxB are electrically connected to the sub-electrodes SubTxPA and SubTxPB of the corresponding first part of the first signal electrode. In at least a portion of the normal touch positioning area NTSA, the second touch metal layer TMB also includes a third part RxPC of the second signal electrode. Along the second direction DH, the third part RxPC of the second signal electrode is located between adjacent sub-electrodes SubTxPA of the first part of the first signal electrode. The third part RxPC of the second signal electrode is connected to the first part RxPA and the second part RxPB of the second signal electrode through different connecting portions RxB. In other words, in at least a portion of the normal touch positioning area NTSA, the first signal channel Tx may have multiple first signal subchannels SubTx, while the second signal channel Rx maintains a single channel. Furthermore, in each normal touch positioning area NTSA, each first signal channel Tx has multiple first signal subchannels SubTx, and each first signal subchannel SubTx includes a sub-electrode SubTxPA of the first portion of the first signal electrode, a bridging portion TxB, and a sub-electrode SubTxPB of the second portion of the first signal electrode, connected sequentially.

[0178] In another example, in at least a partial normal touch positioning area NTSA, there are multiple connection portions RxB. The first part RxPA of the second signal electrode includes sub-electrodes SubRxPA corresponding one-to-one with the multiple connection portions RxB, and the second part RxPB of the second signal electrode includes sub-electrodes SubRxPB corresponding one-to-one with the multiple connection portions RxB. The connection portions RxB are electrically connected to the sub-electrodes SubRxPA and SubRxPB of the corresponding first part of the second signal electrode. In at least a partial normal touch positioning area NTSA, the second touch metal layer TMB also includes a third part TxPC of the first signal electrode. Along the first direction DV, the third part TxPC of the first signal electrode is located between adjacent sub-electrodes SubRxPA of the first part of the second signal electrode, and the third part TxPC of the first signal electrode is connected to the first part TxPA and the second part TxPB of the first signal electrode through different bridging portions TxB. In other words, in at least a portion of the normal touch positioning area NTSA, the second signal channel Rx can have multiple second signal subchannels SubRx, while the first signal channel Tx maintains a single channel. Furthermore, in each normal touch positioning area NTSA, each second signal channel Rx has multiple second signal subchannels SubRx, and each second signal subchannel SubRx includes a sub-electrode SubRxPA of the first portion of the second signal electrode, a connecting portion RxB, and a sub-electrode SubRxPB of the second portion of the second signal electrode, connected sequentially.

[0179] This disclosure also provides a display device, which includes any of the display panels described in the above-described display panel embodiments. The display device can be a smartphone screen, a smartwatch screen, or other types of display devices. Since this display device has any of the display panels described in the above-described display panel embodiments, it has the same beneficial effects, and will not be repeated here.

[0180] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the appended claims.

Claims

1. A display panel, comprising a substrate, a display layer, and a touch layer stacked sequentially; the display area of ​​the display panel has a light-transmitting area; The touch layer is provided with touch channels, each touch channel including a first signal channel extending along a first direction and a second signal channel extending along a second direction, the second direction intersecting the first direction; each of the first signal channels and each of the second signal channels defines a plurality of touch positioning areas distributed in an array; the touch positioning areas are divided into normal touch positioning areas and heterogeneous touch positioning areas, the normal touch positioning areas do not intersect with the light-transmitting areas, the heterogeneous touch positioning areas are adjacent to the light-transmitting areas, and the touch channels of the heterogeneous touch positioning areas are heterogeneous touch channels, at least one of the heterogeneous touch channels includes a plurality of heterogeneous touch subchannels adjacent to the light-transmitting areas; among the plurality of heterogeneous touch subchannels of the heterogeneous touch channel, at least one of the heterogeneous touch subchannels remains continuous; The touch channel of the normal touch positioning area is a normal touch channel, and no touch sub-channel is set in each touch channel of each normal touch positioning area.

2. The display panel according to claim 1, wherein, The touch layer includes a first touch metal layer, a touch insulating layer, and a second touch metal layer, which are sequentially stacked on the side of the display layer away from the substrate. The first signal channel has a plurality of first signal electrodes arranged sequentially along a first direction in the second touch metal layer; two adjacent first signal electrodes are electrically connected through a conductive structure located in the first touch metal layer or the second touch metal layer. The second signal channel has a plurality of second signal electrodes arranged sequentially along the second direction in the second touch metal layer; adjacent two second signal electrodes are electrically connected through a conductive structure located in the first touch metal layer or the second touch metal layer.

3. The display panel according to claim 2, wherein, A mutual capacitance is formed between the first signal channel and the second signal channel of the touch positioning area; In the same touch positioning area, the display panel includes a first part and a second part of the first signal electrode belonging to two adjacent first signal electrodes, and a first part and a second part of the second signal electrode belonging to two adjacent second signal electrodes; the first part and the second part of the first signal electrode are electrically connected, and the first part and the second part of the second signal electrode are electrically connected.

4. The display panel according to claim 3, wherein, In at least one of the heterogeneous touch positioning areas, the first touch metal layer is provided with a bridging portion, the first part of the first signal electrode includes at least two sub-electrodes, and at least one sub-electrode of the first part of the first signal electrode is electrically connected to the second part of the first signal electrode through the bridging 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 part of the first signal electrode includes at least two sub-electrodes, and at least one sub-electrode of the second part of the first signal electrode is electrically connected to the first part of the first signal electrode through the bridging portion.

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; along the second direction, 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. One of the first portion and the second portion of the second signal electrode is electrically connected to the third portion of the adjacent second signal electrode via the connecting portion; the other of the first portion and the second portion of the second signal electrode is electrically connected to the third portion of the adjacent second signal electrode via a conductive structure located in the first touch metal layer or the second touch metal layer.

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 connecting portion, the first part of the second signal electrode includes at least two sub-electrodes, and at least one sub-electrode of the first part of the second signal electrode is electrically connected to the second part of the second signal electrode through the connecting 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 part of the second signal electrode includes at least two sub-electrodes, and at least one sub-electrode of the second part of the second signal electrode is electrically connected to the first part of the second signal electrode through the connecting portion.

7. The display panel according to 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, and the first touch metal layer is provided with a bridging portion; along the first direction, the third portion of the first signal electrode is sandwiched between two adjacent sub-electrodes of the first portion of the second signal electrode or between two adjacent sub-electrodes of the second portion of the second signal electrode. One of the first and second portions of the first signal electrode is electrically connected to the third portion of the adjacent first signal electrode via the bridging portion; the other of the first and second portions of the second signal electrode is electrically connected to the third portion of the adjacent second signal electrode via a conductive structure located in the first or second touch metal layer.

8. The display panel according to claim 3, wherein, In at least one of the heterogeneous touch positioning areas, the first part of the second signal electrode includes multiple sub-electrodes or the second part of the second signal electrode includes multiple sub-electrodes, the first part of the first signal electrode includes multiple sub-electrodes or the second part of the first signal electrode includes multiple sub-electrodes, the second touch metal layer is provided with a third part of the second signal electrode and a third part of the first signal electrode, and the first touch metal layer is provided with multiple bridging portions. The third part of the first signal electrode is connected to the first part and the second part through different bridging portions; the first part and the second part of the second signal electrode are connected through the third part.

9. The display panel according to claim 3, wherein, In at least one of the heterogeneous touch positioning areas, the first part of the second signal electrode includes multiple sub-electrodes or the second part of the second signal electrode includes multiple sub-electrodes, the first part of the first signal electrode includes multiple sub-electrodes or the second part of the first signal electrode includes multiple sub-electrodes, and the second touch metal layer is provided with a third part of the second signal electrode, a third part of the first signal electrode and multiple connecting portions. The third part of the second signal electrode is connected to the first part and the second part through different connecting parts; the first part and the second part of the first signal electrode are connected through the third part.

10. The display panel according to claim 3, wherein, At least one first signal channel includes a first signal subchannel located in two adjacent heterogeneous touch positioning areas along a first direction; the first signal subchannel includes a bridging portion located in the first touch metal layer, and the bridging portions are located at different relative positions in their respective heterogeneous touch positioning areas.

11. The display panel according to claim 10, wherein, The distribution trajectory of each of the bridging portions of at least one of the first signal subchannels is not parallel to the first direction.

12. The display panel according to claim 3, wherein, At least one second signal channel includes a second signal subchannel located in two adjacent heterogeneous touch positioning areas along a second direction; the second signal subchannel includes a connection portion located in the second touch metal layer, and the connection portions are located at different relative positions in their respective heterogeneous touch positioning areas.

13. The display panel according to claim 12, wherein, The distribution trajectory of each of the connecting portions of at least one of the second signal subchannels is not parallel to the second direction.

14. The display panel according to claim 3, wherein, In at least one of the heterogeneous touch positioning areas, the first signal channel includes a plurality of first signal subchannels; along the first direction, at least one first signal subchannel is spaced apart from the end of the light-transmitting area near the light-transmitting area by a second signal channel.

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 bridging portion, and the first part and the second part of the first signal electrode are electrically connected through the bridging 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. The display panel according to claim 15, wherein, In the normal touch positioning area, there is one first part of the first signal electrode, one second part of the first signal electrode and one bridging part, and there is one first part of the second signal electrode, one second part of the second signal electrode and one connecting part.

17. The display panel according to claim 15, wherein, In at least a portion of the normal touch positioning area, there are multiple bridging portions, a first portion of the first signal electrode includes sub-electrodes corresponding one-to-one with the multiple bridging portions, and a second portion of the first signal electrode includes sub-electrodes corresponding one-to-one with the multiple bridging portions; the bridging portions are electrically connected to the sub-electrodes of the corresponding first portion of the first signal electrode and the sub-electrodes of the second portion of the first signal electrode. In at least a portion of the normal touch positioning area, the second touch metal layer further includes a third portion of the second signal electrode; Along the second direction, the third part of the second signal electrode is located between adjacent sub-electrodes of the first part of the first signal electrode, and the third part of the second signal electrode is connected to the first part of the second signal electrode and the second part of the second signal electrode through different connecting parts.

18. The display panel according to claim 15, wherein, In at least a portion of the normal touch positioning area, there are multiple connecting portions, and the first part of the second signal electrode includes sub-electrodes corresponding one-to-one with the multiple connecting portions, and the second part of the second signal electrode includes sub-electrodes corresponding one-to-one with the multiple connecting portions; the connecting portions are electrically connected to the sub-electrodes of the corresponding first part of the second signal electrode and the sub-electrodes of the second part of the second signal electrode. In at least a portion of the normal touch positioning area, the second touch metal layer further includes a third portion of the first signal electrode; Along the second direction, the third part of the first signal electrode is located between adjacent sub-electrodes of the first part of the second signal electrode, and the third part of the first signal electrode is connected to the first part of the first signal electrode and the second part of the first signal electrode through different bridging portions.

19. The display panel according to any one of claims 3 to 12, wherein, The light-transmitting area intersects with four touch positioning areas, which are arranged in two rows and two columns.

20. A display device comprising the display panel as described in any one of claims 1 to 19.

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