Touch display panel and display terminal

Abstract

This application discloses a touch display panel and a display terminal. The touch display panel includes a substrate, a light-emitting unit layer, and a metal layer. The light-emitting unit layer includes a light-emitting layer and a first conductive layer. The light-emitting layer includes multiple light-emitting portions. The metal layer is disposed on the substrate and located between two adjacent light-emitting portions. The metal layer includes multiple metal segments. Two adjacent metal segments and a light-emitting portion form a first groove, and two adjacent metal segments and the substrate form a second groove. The first conductive layer includes a first conductive line disposed on the light-emitting layer and located in the first groove. The two ends of the first conductive line are respectively connected to two adjacent metal segments. A second conductive line is insulated on the metal layer and includes a first touch line and a second touch line. The first touch line extends from the upper surface of the first metal segment into the second groove and connects to the second metal segment. The second touch line is insulated on the second metal segment.

Description

Technical Field

[0001] This application relates to the field of display technology, and in particular to a touch display panel and display terminal. Background Technology

[0002] In flat panel display technology, Organic Light-Emitting Diode (OLED) displays offer numerous advantages, including thinness, active light emission, fast response time, wide viewing angles, broad color gamut, high brightness, and low power consumption. Compared to LCDs (Liquid Crystal Displays), OLEDs are more energy-efficient, thinner, and offer wider viewing angles—advantages that LCDs cannot match.

[0003] With the continuous development of technology, touch screens, as a simple and convenient human-computer interaction method, have been widely used in various fields of our daily lives, such as mobile phones, media players, navigation systems, digital cameras, photo frames, PDAs, gaming devices, monitors, electrical control, medical equipment, and so on. Touch technology has opened up a new mode of human-computer interaction on mobile terminals, and large size, ultra-thin flexibility, and low cost have become inevitable development trends in the touch screen industry. Currently, touch screens can be classified into two types according to their structure: add-on touch panels and on-cell touch panels. Add-on touch panels attach the touch structure to the outside of the display panel, resulting in a larger and less aesthetically pleasing structure. On-cell touch panels add the touch structure on top of the OLED device after it has been encapsulated, which affects touch performance, increases manufacturing costs, and consequently affects the yield and reliability of the touch screen. Summary of the Invention

[0004] The purpose of this invention is to provide a touch display panel and a display terminal to solve the technical problems of existing touch display panels, such as large structure, poor touch performance, and high manufacturing cost.

[0005] To achieve the above objectives, the present invention provides a touch display panel, comprising: a substrate; a light-emitting unit layer disposed on the substrate, the light-emitting unit layer including a light-emitting layer and a first conductive layer disposed on the light-emitting layer, the light-emitting layer including a plurality of light-emitting portions; and a metal layer disposed on the substrate and located between two adjacent light-emitting portions, the metal layer including a plurality of metal segments, the orthographic projection of each metal segment on the substrate not overlapping the orthographic projection of the light-emitting portion on the substrate; wherein two adjacent metal segments and a light-emitting portion form a first groove, and two adjacent metal segments and the substrate form a second groove; wherein the first conductive layer includes: a first conductive trace disposed on the light-emitting layer and located within the first groove, the two ends of the first conductive trace being respectively connected to two adjacent metal segments; and a second conductive trace insulatedly disposed on the metal layer, the second conductive trace including a first touch trace and a second touch trace, the first touch trace extending from the upper surface of the first metal segment into the second groove and connected to the second metal segment, the second touch trace being insulatedly disposed on the second metal segment.

[0006] Furthermore, the touch display panel further includes: a shielding layer disposed between the second conductive trace and the metal layer, the shielding layer comprising: a first shielding segment, one end of which extends into the first groove and forms a first undercut structure with one end of the first metal segment, the other end of which is flush with the other end of the first metal segment; a second shielding segment, one end of which extends into the first groove and forms a second undercut structure with one end of the second metal segment, the other end of which extends into the second groove and forms a third undercut structure with the other end of the second metal segment.

[0007] Furthermore, the first touch trace is disposed on the first shielding section, one end of the first touch trace extends into the first groove, and the other end extends along the other end of the first metal section into the second groove and is connected to the second metal section; the second touch trace is disposed on the second shielding section, one end of the second touch trace extends into the first groove, and the other end extends into the second groove.

[0008] Furthermore, the orthographic projection of one end of the first touch trace on the substrate coincides with the orthographic projection of the first conductive trace on the substrate; the orthographic projection of one end of the second touch trace on the substrate coincides with the orthographic projection of the first conductive trace on the substrate, and the orthographic projection of the other end of the second touch trace on the substrate coincides with the orthographic projection of the other end of the first touch trace on the substrate.

[0009] Furthermore, the first conductive trace extends from the sidewall of the first groove to its bottom surface.

[0010] Furthermore, the first conductive layer further includes: a third conductive trace disposed between the first touch trace and the second touch trace, each third conductive trace having multiple breaks, and multiple third conductive traces intersecting to form a dummy mesh; the first touch trace and the second touch trace intersecting to form a touch mesh; wherein the dummy mesh and the touch mesh are spaced apart to form a metal mesh.

[0011] Furthermore, the first touch trace includes a plurality of first electrode blocks arranged along a first direction and interconnected with each other; the second touch trace includes a plurality of second electrode blocks arranged along a second direction and interconnected with each other; the third conductive trace includes a plurality of interconnected filling electrode blocks, each filling electrode block being disposed between the first electrode block and the second electrode block.

[0012] Furthermore, the first conductive layer is a cathode layer.

[0013] Furthermore, the substrate includes a thin-film transistor layer, which includes an active layer, a gate layer, and a source / drain layer that are insulated from each other; the light-emitting unit layer also includes a second conductive layer, the light-emitting layer is disposed on the second conductive layer, the second conductive layer includes a plurality of anodes, each light-emitting part corresponds to an anode, and the anode is connected to the source / drain layer.

[0014] To achieve the above objectives, the present invention also provides a display terminal, including any of the touch display panels described above.

[0015] The technical advantage of this invention is that it provides a touch display panel and a display terminal, in which the cathode of the light-emitting unit layer and two touch traces of the touch structure are formed in the same process step, which is conducive to realizing a highly integrated and thin touch display panel.

[0016] Furthermore, a metal layer is disposed on the substrate, located between two adjacent light-emitting parts. The metal layer includes multiple metal segments, and the orthographic projection of each metal segment on the substrate does not overlap with the orthographic projection of the light-emitting part on the substrate. Two adjacent metal segments and one light-emitting part form a first groove, and two adjacent metal segments and the substrate form a second groove. A first conductive trace is disposed on the light-emitting layer and located within the first groove. Both ends of the first conductive trace are connected to two adjacent metal segments to achieve VSS signal transmission of the light-emitting unit layer. This eliminates the need for the existing cathode overlap area, thus facilitating the realization of an ultra-narrow bezel touch display panel. A second conductive trace is insulated on the metal layer and includes a first touch trace and a second touch trace. The first touch trace extends from the upper surface of the first metal segment into the second groove and connects to the second metal segment. The second touch trace is insulated on the second metal segment. The touch trace of this touch structure can connect to the underlying metal layer (i.e., the metal layer itself), thereby achieving VDD signal transmission of the touch electrode. Attached Figure Description

[0017] The technical solution and other beneficial effects of this application will become apparent from the following detailed description of specific embodiments in conjunction with the accompanying drawings.

[0018] Figure 1 This is a schematic diagram of the structure of a display unit of a touch display panel provided in an embodiment of this application.

[0019] Figure 2 This is a schematic diagram of the structure of two display units of the touch display panel provided in an embodiment of this application.

[0020] Figure 3 This is a schematic diagram of the structure of the first conductive trace provided in an embodiment of this application.

[0021] Figure 4 This is a schematic diagram of the touch structure in an embodiment of this application.

[0022] Figure 5 for Figure 4 A diagram showing the partitions.

[0023] Figure 6 This is a schematic diagram of the structure of the touch electrode in an embodiment of this application.

[0024] 10. Display unit; 1. Substrate;

[0025] 2. Light-emitting unit layer; 3. Metal layer;

[0026] 11. Substrate; 12. Thin-film transistor layer;

[0027] 13. Planarization layer; 14. Pixel definition layer;

[0028] 15. Shielding layer; 121. Active layer;

[0029] 122. First gate insulating layer; 123. First gate layer;

[0030] 124. Second gate insulating layer; 125. Second gate layer;

[0031] 126. Dielectric layer; 127. Source / drain layer;

[0032] 128. Signal block; 21. Second conductive layer;

[0033] 22. Light-emitting layer; 23. First conductive layer;

[0034] 24. Common layer; 31. First metal segment;

[0035] 32. Second metal segment; 151. First shielding segment;

[0036] 152. Second shielding section; 231. First conductive trace;

[0037] 232. Second conductive trace; 233. Third conductive trace;

[0038] 41. First groove; 42. Second groove;

[0039] 51. First conductive post; 52. Second conductive post;

[0040] 53. Third conductive post; 61. Through hole;

[0041] 62. Opening; 71. First undercut structure;

[0042] 72. Second undercut structure; 73. Third undercut structure;

[0043] 81. First electrode block; 82. Second electrode block;

[0044] 83. Filler electrode block; 2321. First touch trace;

[0045] 2322, Second touch control wiring. Detailed Implementation

[0046] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0047] Unless otherwise defined, the technical or scientific terms used herein should have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. The terms "first," "second," and similar terms used in this patent application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "inner," "outer," "upper," and "lower" are used only to indicate relative positional relationships; these relative positional relationships may change accordingly when the absolute position of the described object changes.

[0048] Organic light-emitting diode (OLED) display panels possess characteristics such as self-illumination, high contrast, low power consumption, wide viewing angle, fast response speed, applicability to flexible panels, wide operating temperature range, and simple manufacturing, thus showing broad development prospects. To meet diverse user needs, integrating multiple functions into display panels, such as touch functionality and fingerprint recognition, is of great significance.

[0049] This embodiment provides a touch display panel in which an in-cell touch structure is formed in the OLED display panel. This method achieves the touch function of the display panel by forming the touch structure and the cathode or capping layer (CPL) in the same process step.

[0050] like Figures 1-2 As shown, the touch display panel provided in this embodiment has multiple display units 10, each display unit 10 including a substrate 1, a light-emitting unit layer 2 and a metal layer 3.

[0051] The substrate 1 includes a base 11, a thin film transistor layer 12, a planarization layer 13, and a pixel definition layer 14.

[0052] The substrate 11 can be a single-layer buffer layer or a stacked structure of a flexible layer and a buffer layer.

[0053] A thin-film transistor layer 12 is disposed on a substrate 11 and includes a plurality of thin-film transistors spaced apart. These thin-film transistors can be either top-gate or bottom-gate structures, and are not particularly limited thereto. In this embodiment, the thin-film transistor layer 12 includes an active layer 121, a gate layer, and a source-drain layer 127 that are mutually insulated from each other. Specifically, the thin-film transistor layer 12 includes an active layer 121, a first gate insulating layer 122, a first gate layer 123, a second gate insulating layer 124, a second gate layer 125, a dielectric layer 126, and a source-drain layer 127. An active layer 121 is disposed on a substrate 11; a first gate insulating layer 122 is disposed on the active layer 121 and extends to the upper surface of the substrate 11; a first gate layer 123 is disposed on the first gate insulating layer 122, and its orthographic projection on the substrate 11 falls completely within the orthographic projection of the active layer 121 on the substrate 11; a second gate insulating layer 124 is disposed on the first gate insulating layer 123 and extends to the upper surface of the first gate insulating layer 122; a second gate layer 125 is disposed on the second gate insulating layer 124 and is directly opposite the first gate layer 123; a dielectric layer 126 is disposed on the second gate layer 125 and extends to the second gate insulating layer 124; a source-drain layer 127 is disposed on the dielectric layer 126 and is connected to the active layer 121 through a first conductive post 51, wherein the material used for the first conductive post 51 is the same as the material used for the source-drain layer 127. The source-drain layer 127 also includes signal blocks 128 disposed on the same layer, with at least two signal blocks 128 disposed at intervals on the dielectric layer 126.

[0054] A planarization layer 13 is disposed on the source-drain layer 127 and extends to the upper surface of the dielectric layer 126. The planarization layer 13 has a via 61 to expose one of the electrodes in the source-drain layer 127, such as the drain electrode, which is not specifically limited here.

[0055] The light-emitting unit layer 2 is disposed on the thin film crystal layer, combined with Figure 1 As shown, the light-emitting unit layer 2 is disposed on the planarization layer 13, and includes a second conductive layer 21, a light-emitting layer 22, and a first conductive layer 23 stacked sequentially. The second conductive layer 21 includes multiple anodes, each anode filling a via 61 and connected to an electrode of the source-drain layer 127, such as a drain. The light-emitting layer 22 is disposed on the second conductive layer 21 and includes multiple light-emitting portions, each light-emitting portion forming a sub-pixel. The sub-pixel can be a red sub-pixel, a green sub-pixel, or a blue sub-pixel. These three colors of sub-pixels can be arranged adjacently to adjust the color and brightness of the touch display panel. To better define the position of each sub-pixel, a pixel definition layer 14 is formed before fabricating the light-emitting layer 22. This pixel definition layer 14 is disposed on the planarization layer 13 and has several openings 62 to expose the anodes. Light-emitting materials are deposited in the openings 62 to form light-emitting portions of different colors, thereby forming the light-emitting layer 22. The first conductive layer 23 covers the entire light-emitting layer 22.

[0056] In one embodiment, a common layer 24 may be provided between the light-emitting layer 22 and the first conductive layer 23. This common layer 24 can be an electron functional layer. Alternatively, another common layer 24 (not shown) may be provided between the light-emitting layer 22 and the second conductive layer. This common layer 24 can be a hole functional layer. By providing electron and hole functional layers on both sides of the light-emitting layer 22, electrons and holes can recombine excitons in the light-emitting layer 22 and emit light. This increases the luminous efficiency of each light-emitting part in the light-emitting unit layer 2 and improves the accuracy of the emitted color. Consequently, the current required by the light-emitting unit layer 2 to meet the brightness requirements is reduced, thus slowing down the aging rate of the light-emitting material.

[0057] Metal layer 3 is disposed above substrate 1, and bonded to it. Figure 1 As shown, the metal layer 3 is disposed on the pixel definition layer 14 and located between two adjacent light-emitting parts. The metal layer 3 includes multiple metal segments, and the orthographic projection of each metal segment on the substrate 1 does not overlap with the orthographic projection of each light-emitting part on the substrate 1. Two adjacent metal segments and light-emitting parts form a first groove 41, and two adjacent metal segments and the substrate form a second groove 42. Specifically, the metal layer 3 includes a first metal segment 31 and a second metal segment 32. The first metal segment 31 is connected to the VSS signal block 128 through a second conductive post 52, and the second metal segment 32 is connected to the VDD signal block 128 through a third conductive post 53. The sidewalls of adjacent first metal segments 31 and second metal segments 32 and the upper surface of a light-emitting part form a first groove 41, and adjacent first metal segments 31 and second metal segments 32 and a portion of the upper surface of the pixel definition layer 14 form a second groove 42.

[0058] In this embodiment, the first conductive layer 23 includes a first conductive trace 231, a second conductive trace 232, and a third conductive trace 233.

[0059] The first conductive trace 231 is disposed on the light-emitting layer 22 and located within the first groove 41. Specifically, the first conductive trace 231 is disposed on the upper surface of each light-emitting part and extends from the sidewall of the first groove 41 to the bottom surface of the first groove 41 to serve as the cathode in the light-emitting unit layer 2. The two ends of the first conductive trace 231 are respectively connected to two adjacent metal segments, that is, one end of the first conductive trace 231 is connected to the first metal segment 31 and the other end is connected to the second metal segment 32, so that the cathode and the metal layer 3 are interconnected for transmitting VSS signals. The cross-sectional view of the first conductive trace 231 can be straight, "U", "W", "U" shaped, etc., and is not particularly limited here.

[0060] The second conductive trace 232 is insulatedly disposed on the metal layer 3, meaning that a shielding layer 15 is provided between the second conductive trace 232 and the metal layer 3. Combined with... Figure 1 As shown, the common layer 24 covers the entire light-emitting layer 22, that is, the common layer 24 is disposed on the light-emitting part and the shielding layer 15, and the first conductive layer 23 is disposed on the common layer 24. The second conductive trace 232 includes a first touch trace 2321 and a second touch trace 2322. The first touch trace 2321 extends from the upper surface of the first metal segment 31 into the second groove 42 and is connected to the second metal segment 32. The second touch trace 2322 is insulated on the second metal segment 32. The touch traces of this touch structure can be connected to the underlying metal layer (i.e., metal layer 3) to realize the VDD signal transmission of the touch electrode.

[0061] Specifically, the shielding layer 15 includes a first shielding segment 151 and a second shielding segment 152. One end of the first shielding segment 151 extends into the first groove 41 and forms a first undercut structure 71 with one end of the first metal segment 31. The other end of the first shielding segment 151 is flush with the other end of the first metal segment 31. One end of the second shielding segment 152 extends into the first groove 41 and forms a second undercut structure 72 with one end of the second metal segment 32. The other end of the second shielding segment 152 extends into the second groove 42 and forms a third undercut structure 73 with the other end of the second metal segment 32.

[0062] A first touch trace 2321 is disposed on a first shielding section 151. One end of the first touch trace 2321 extends into a first groove 41, and the other end extends along the other end of a first metal section 31 into a second groove 42 and connects to the second metal section 32, so that the first touch trace 2321 and the second metal section 32 are mutually conductive for transmitting the VDD signal of the touch electrode. A second touch trace 2322 is disposed on a second shielding section 152. One end of the second touch trace 2322 extends into a first groove 41, and the other end extends into a second groove 42.

[0063] The orthographic projection of one end of the first touch trace 2321 on the substrate 1 coincides with the orthographic projection of the first conductive trace 231 on the substrate 1. The orthographic projection of one end of the second touch trace 2322 on the substrate 1 coincides with the orthographic projection of the first conductive trace 231 on the substrate 1, and the orthographic projection of the other end of the second touch trace 2322 on the substrate 1 coincides with the orthographic projection of the other end of the first touch trace 2321 on the substrate 1.

[0064] In this embodiment, two undercut structures, namely a first undercut structure 71 and a second undercut structure 72, are formed within the first groove 41. These two undercut structures form a closed-loop structure, so that the first conductive trace 231 (i.e., the cathode) located within the first groove 41 forms a closed-loop pattern. (Refer to...) Figure 3 As shown, an undercut structure, namely a third undercut structure 73, is formed in the second groove 42 to divide the second conductive trace 232 to form the first touch trace 2321 and the second touch trace 2322, so as to realize the touch function of the display panel.

[0065] Therefore, in this embodiment, the cathode of the light-emitting unit layer 2 and two touch traces of the touch structure are formed in the same process step, which is beneficial to realizing a highly integrated and thin touch display panel.

[0066] Furthermore, by setting a first undercut structure 71, a second undercut structure 72, and a third undercut structure 73, a first conductive layer 23 is intermittently disposed on or above the upper surface of the shielding layer 15 to form a first conductive trace 231, a first touch trace 2321, and a second touch trace 2322. The first conductive trace 231 is connected to the metal layer 3, enabling VSS signal transmission of the light-emitting unit layer 2 while eliminating the need for the existing cathode overlap area, thus facilitating the realization of an ultra-narrow bezel touch display panel. The second conductive trace 232 is connected to the metal layer 3, enabling VDD signal transmission of the touch electrodes.

[0067] like Figures 4-6 As shown, the first touch trace 2321 includes a plurality of first electrode blocks 81 arranged and interconnected along a first direction (lateral direction), and the second touch trace 2322 includes a plurality of second electrode blocks 82 arranged and interconnected along a second direction (vertical direction). The first electrode blocks 81 and the second electrode blocks 82 form a touch electrode, which is connected to a driving device (not shown). The first direction and the second direction are perpendicular to each other. The first touch trace 2321 can be a sensing electrode trace (RX), and the second touch trace 2322 can be a driving electrode trace (TX).

[0068] The third conductive trace 233 is disposed between the first touch trace 2321 and the second touch trace 2322. The third conductive trace 233 includes multiple interconnected filler electrode blocks 83, each filler electrode block 83 being disposed between the first electrode block 81 and the second electrode block 82. Each third conductive trace 233 has multiple breaks, meaning that insulation is achieved through the breaks formed by the breaks in the third conductive trace 233, forming multiple filler electrode blocks 83. This arrangement can maximize the area and density of the touch electrodes, thereby improving touch sensitivity.

[0069] Multiple third conductive traces 233 intersect to form a dummy mesh. The first touch trace 2321 and the second touch trace 2322 intersect to form a touch mesh. The dummy mesh and the touch mesh are spaced apart to form a metal mesh. This metal mesh can avoid touch blind spots caused by the continuous placement of filling electrode blocks 83 (dummy electrode blocks), improve the touch accuracy in this area, and thus improve the touch performance of the display panel.

[0070] This embodiment also provides a display terminal, which includes a terminal body and a touch display panel, with the terminal body connected to the touch display panel. The display terminal provided in this embodiment can be a mobile phone, tablet computer, laptop computer, digital camera, navigator, or other product or component with display functionality.

[0071] The above provides a detailed description of a touch display panel and display terminal provided in the embodiments of this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the technical solutions and core ideas of this application. Those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A touch display panel, characterized in that, include: Substrate; A light-emitting unit layer disposed on the substrate, the light-emitting unit layer including a light-emitting layer and a first conductive layer disposed on the light-emitting layer, the light-emitting layer including a plurality of light-emitting portions; and A metal layer is disposed on the substrate and located between two adjacent light-emitting parts. The metal layer includes a plurality of metal segments, and the orthographic projection of each metal segment on the substrate does not overlap with the orthographic projection of the light-emitting part on the substrate. Among them, two adjacent metal segments and a light-emitting part form a first groove, and two adjacent metal segments and the substrate form a second groove. The first conductive layer includes: A first conductive trace is disposed on the light-emitting layer and located within the first groove, with its two ends respectively connected to two adjacent metal segments; and The second conductive trace is insulated on the metal layer. The second conductive trace includes a first touch trace and a second touch trace. The first touch trace extends from the upper surface of the first metal segment into the second groove and is connected to the second metal segment. The second touch trace is insulated on the second metal segment.

2. The touch display panel according to claim 1, characterized in that, Also includes: A shielding layer is disposed between the second conductive trace and the metal layer, the shielding layer comprising: The first shielding segment has one end extending into the first groove and forming a first undercut structure with one end of the first metal segment, and the other end of the first shielding segment is flush with the other end of the first metal segment. The second shielding segment has one end extending into the first groove and forming a second undercut structure with one end of the second metal segment, and the other end extending into the second groove and forming a third undercut structure with the other end of the second metal segment.

3. The touch display panel according to claim 2, characterized in that, The first touch trace is disposed on the first shielding section. One end of the first touch trace extends into the first groove, and the other end extends along the other end of the first metal section into the second groove and connects to the second metal section. The second touch trace is disposed on the second shielding section, with one end of the second touch trace extending into the first groove and the other end extending into the second groove.

4. The touch display panel according to claim 3, characterized in that, The orthographic projection of one end of the first touch trace on the substrate coincides with the orthographic projection of the first conductive trace on the substrate. One end of the second touch trace has its orthographic projection on the substrate coincides with the orthographic projection of the first conductive trace on the substrate, and the other end of the second touch trace has its orthographic projection on the substrate coincides with the other end of the first touch trace on the substrate.

5. The touch display panel according to claim 1, characterized in that, The first conductive trace extends from the sidewall of the first groove to its bottom surface.

6. The touch display panel according to claim 1, characterized in that, The first conductive layer further includes: The third conductive trace is disposed between the first touch trace and the second touch trace. Each third conductive trace has multiple breaks, and multiple third conductive traces intersect each other to form a virtual network. The first touch trace and the second touch trace intersect to form a touch grid; The virtual mesh and the touch mesh are spaced apart to form a metal grid.

7. The touch display panel according to claim 6, characterized in that, The first touch trace includes a plurality of first electrode blocks arranged along a first direction and interconnected with each other; The second touch trace includes a plurality of second electrode blocks arranged along the second direction and interconnected with each other; The third conductive trace includes multiple interconnected filler electrode blocks, each filler electrode block being disposed between the first electrode block and the second electrode block.

8. The touch display panel according to claim 1, characterized in that, The first conductive layer is a cathode layer.

9. The touch display panel according to claim 1, characterized in that, The substrate includes a thin-film transistor layer, which includes an active layer, a gate layer, and source / drain layers that are insulated from each other. The light-emitting unit layer further includes a second conductive layer, which is disposed on the second conductive layer. The second conductive layer includes a plurality of anodes, with each light-emitting part corresponding to one anode, and the anodes are connected to the source-drain layer.

10. A display terminal, characterized in that, Includes the touch display panel as described in any one of claims 1-9.

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