Display panel and display module

Abstract

The invention relates to a display panel and a display module, and the display panel comprises a substrate which is provided with a plurality of pixel units arranged in an array, and each pixel unit emits light through a corresponding pixel opening; the touch control layer is arranged on one side of the substrate and comprises a touch control wire and a conductive film wire which are arranged in a stacked mode, and the touch control wire and the conductive film wire are arranged around the periphery of the pixel opening; wherein the orthographic projection of the conductive film wire on the substrate covers the orthographic projection of the touch wire on the substrate. Therefore, the touch wires can be set to be narrower, the distance between the narrower touch wires and the edges of the pixel openings is farther, light at the pixel openings under a low viewing angle is allowed to be emitted, color cast caused by the fact that the touch wires block the light under the low viewing angle is prevented, and the display performance under the low viewing angle is improved. And meanwhile, a conductive film wire with a relatively wide width is laminated on the touch wire, so that an enough touch area is ensured.

Description

Technical Field

[0001] The present invention relates to the field of display technologies, and particularly to a display panel and a display module. Background Art

[0002] OLED (Organic Light Emitting Diode) display panels have become a type of display panel with extremely high competitiveness and good development prospects at present because of a series of advantages such as being thinner and lighter, having high brightness, low power consumption, fast response, high clarity, good flexibility, and high luminous efficiency.

[0003] Generally, a touch layer is provided on a display substrate in a display panel to enable the display panel to have a touch function. However, traditional touch electrode traces are likely to block the light emitted by pixel units in the display substrate at low viewing angles, resulting in color deviation. Therefore, the display performance of the display panel at low viewing angles is poor. Summary of the Invention

[0004] Based on this, it is necessary to provide a display panel and a display module for solving the problem of poor display performance of traditional display panels at low viewing angles.

[0005] A display panel includes:

[0006] a substrate having a plurality of pixel units arranged in an array, and each of the pixel units emits light through a corresponding pixel aperture;

[0007] a touch layer provided on one side of the substrate and including a touch trace and a conductive film trace arranged in a stacked manner, and both the touch trace and the conductive film trace are arranged around the outer periphery of the pixel aperture;

[0008] wherein, a positive projection of the conductive film trace on the substrate covers a positive projection of the touch trace on the substrate.

[0009] In some embodiments, a width of the touch trace is less than a width of the conductive film trace;

[0010] Preferably, a material of the conductive film trace is a transparent conductive material;

[0011] Preferably, the conductive film trace is located between the touch trace and the substrate, or the touch trace is located between the conductive film trace and the substrate.

[0012] In some embodiments, the width of the touch trace is 1 μm - 5 μm.

[0013] In some embodiments, the width of the conductive film trace is less than a pitch between two adjacent pixel apertures.

[0014] In some embodiments, the touch control wiring includes a transmitting electrode wiring and a receiving electrode wiring, the receiving electrode wiring is located between the substrate and the transmitting electrode wiring, and the transmitting electrode wiring and the receiving electrode wiring are relatively spaced and insulated, and the conductive film wiring is at least stacked with the transmitting electrode wiring;

[0015] Preferably, the conductive film wiring is stacked with the emitter electrode wiring;

[0016] Preferably, the conductive film wiring includes two layers stacked with the transmitting electrode wiring and the receiving electrode wiring respectively.

[0017] In some embodiments, the conductive film wiring is stacked with the emitting electrode wiring, and the conductive film wiring is located on a side of the emitting electrode wiring facing toward or away from the substrate; or

[0018] The conductive film routing includes two layers stacked on the transmitting electrode routing and the receiving electrode routing, respectively. The conductive film routing stacked with the transmitting electrode routing is located on the side of the transmitting electrode routing facing toward or away from the substrate, and the conductive film routing stacked with the receiving electrode routing is located on the side of the receiving electrode routing facing toward or away from the substrate.

[0019] In some embodiments, the touch control wiring includes a self-capacitance electrode wiring, and the conductive film wiring and the self-capacitance electrode wiring are stacked.

[0020] In some of the embodiments, the conductive film wiring is located between the self-capacitance electrode wiring and the substrate, or the self-capacitance electrode wiring is located between the conductive film wiring and the substrate.

[0021] In some of the embodiments, the touch wiring and the conductive film wiring are made by using the same mask plate, and over-exposure and / or over-etching are performed when making the touch wiring; or

[0022] The touch control wiring and the conductive film wiring are made by using a half-tone mask.

[0023] A display module comprises the above-mentioned display panel.

[0024] In the above display panel, the touch layer includes touch traces and conductive film traces arranged in a stacked manner. Both the touch traces and the conductive film traces are arranged around the outer periphery of the pixel opening. The orthographic projection of the conductive film trace on the substrate covers the orthographic projection of the touch trace on the substrate. The orthographic projection of the conductive film trace covering the orthographic projection of the touch trace on the substrate is equivalent to the outer contour of the orthographic projection of the touch trace on the substrate being located within the outer contour of the orthographic projection of the conductive film trace on the substrate. The conductive film trace can be set wider, and the touch trace can be set narrower. The distance between the narrower touch trace and the edge of the pixel opening is farther, allowing the light at the pixel opening to be emitted even at a low viewing angle, preventing the touch trace from blocking the light at a low viewing angle and causing color shift, and improving the display performance at a low viewing angle.

[0025] At the same time, after making the touch trace thinner, in order to prevent the reduction of the area of the touch trace from affecting the touch effect, the touch trace and the conductive film trace are arranged in a stacked manner to ensure sufficient touch area and touch capacitance, so as to ensure that the touch effect is not affected after the touch trace becomes thinner. In this way, both the touch effect can be ensured and the display performance at a low viewing angle can be improved. Description of the Drawings

[0026] Figure 1 It is a schematic structural diagram of the touch layer of the top-view display panel in an embodiment of the present application;

[0027] Figure 2 It is a schematic cross-sectional diagram of the display panel in some embodiments of the present application;

[0028] Figure 3 It is a schematic cross-sectional diagram of the display panel in some other embodiments of the present application;

[0029] Figure 4 It is a schematic cross-sectional diagram of the display panel in some other embodiments of the present application;

[0030] Figure 5 It is a schematic cross-sectional diagram of the display panel in some other embodiments of the present application.

[0031] Description of the Reference Numerals: 100, display panel; 10, substrate; 11, array substrate; 12, pixel definition layer; 121, pixel opening; 13, pixel unit; 14, anode; 15, organic light-emitting layer; 16, cathode; 18, encapsulation layer; 30, touch layer; 32, touch trace; 321, self-capacitance electrode trace; 323, emitting electrode trace; 325, receiving electrode trace; 34, conductive film trace; 50, protective layer. Detailed Embodiments

[0032] To make the above objects, features, and advantages of the present invention more obvious and understandable, the following will describe the specific embodiments of the present invention in detail with reference to the accompanying drawings. Many specific details are set forth in the following description to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0033] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of the present invention.

[0034] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0035] In the present invention, unless otherwise clearly specified and limited, the terms "mounted", "connected", "coupled", "fixed", etc. should be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] In the present invention, unless otherwise clearly specified and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0037] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation.

[0038] As described in the background art, the display panel includes a substrate, and a plurality of pixel units are arrayed inside the substrate. Each pixel unit has a pixel opening, and when the pixel unit works, light is emitted outward from the pixel opening. In addition, the display panel also sets metal electrode traces around the pixel opening on the substrate to achieve a touch function. However, when the display panel is used at a low angle, the metal electrode traces will block the light emitted from the pixel opening, thereby causing color deviation and affecting the display effect at a low angle.

[0039] Referring to Figure 1 - Figure 2 , to solve the above technical problems, according to some embodiments of the present application, a display panel 100 is provided, which includes a substrate 10 and a touch layer 30. The substrate 10 has a plurality of pixel units 13 arranged in an array. Each pixel unit 13 emits light from a corresponding pixel opening 121. When the pixel unit 13 works, light is emitted from the pixel opening 121 for display. The touch layer 30 is disposed on one side of the substrate 10 and is used to sense the touch operation of a finger on the display panel 100.

[0040] Specifically, the touch layer 30 includes a touch trace 32 and a conductive film trace 34 arranged in a stacked manner. Both the touch trace 32 and the conductive film trace 34 are arranged around the outer periphery of the pixel opening 121. The orthographic projection of the conductive film trace 34 on the substrate 10 covers the orthographic projection of the touch trace 32 on the substrate 10. The orthographic projection of the conductive film trace 34 covering the orthographic projection of the touch trace 32 on the substrate 10 is equivalent to the outer contour of the orthographic projection of the touch trace 32 on the substrate 10 being located within the outer contour of the orthographic projection of the conductive film trace 34 on the substrate 10. The conductive film trace 34 can be set wider, and the touch trace 32 can be set narrower. The distance between the narrower touch trace 32 and the edge of the pixel opening 121 is farther, allowing the light at the pixel opening 121 to be emitted even at a low viewing angle, preventing the touch trace 32 from blocking the light at a low viewing angle and causing color deviation, and improving the display performance at a low viewing angle.

[0041] Meanwhile, after making the touch trace 32 thinner, in order to prevent the reduction of the area of the touch trace 32 from affecting the touch effect, the touch trace 32 and the conductive film trace 34 are stacked to ensure sufficient touch area and touch capacitance, so as to ensure that the touch effect is not affected after the touch trace 32 becomes thinner. In this way, the touch effect can be ensured and the display performance at a low viewing angle can be improved.

[0042] According to some embodiments of the present application, the substrate 10 includes an array substrate 11, a pixel definition layer 12, and pixel units 13. The pixel definition layer 12 is disposed on the array substrate 11 and has a plurality of pixel openings 121. The pixel units 13 include an anode 14, an organic light-emitting layer 15, and a cathode 16. The anode 14 is disposed on the array substrate 11 and at least part of it is exposed through the pixel openings 121 of the pixel definition layer 12. The organic light-emitting layer 15 and the cathode 16 are sequentially stacked on the anode 14, and the three cooperate to form the pixel units 13. At the same time, the light-emitting range of the pixel units 13 is defined by the pixel openings 121 of the pixel definition layer 12, allowing the pixel units 13 to emit light from the range where the corresponding pixel openings 121 are located.

[0043] The array substrate 11 includes a substrate (for example, formed of PI material), and thin-film transistors (not shown in the figure) disposed on the substrate. Of course, the array substrate 11 may further include film layers such as a planarization layer and a passivation layer, which are not limited herein. The thin-film transistors are used to input driving current to the pixel units 13 to control the light emission of the pixel units 13.

[0044] The anode 14, that is, the pixel electrode, is formed on the array substrate 11. For the convenience of description, the following will take the pixel electrode as an example for illustration. The array substrate 11 has a plurality of sub-pixel regions. For example, in some embodiments, the array substrate 11 has a first sub-pixel region that emits red light, a second sub-pixel region that emits blue light, and a third sub-pixel region that emits green light. A set of the first sub-pixel region, the second sub-pixel region, and the third sub-pixel region can form a pixel region. It can be understood that in some other embodiments, each pixel region may also include other sub-pixel regions, which are not limited herein. For example, it may further include a fourth sub-pixel region that emits white light.

[0045] In some embodiments, the pixel electrode can be a transparent electrode, a semi-transparent electrode, or a reflective electrode. For example, when the pixel electrode is a transparent electrode, the pixel electrode may include, for example, indium tin oxide (ITO), indium zinc oxide, zinc oxide, indium sesquioxide, indium potassium oxide, or aluminum zinc oxide, etc. When the pixel electrode is a reflective electrode, it may include materials such as silver, magnesium, aluminum, platinum, gold, nickel, etc.

[0046] The pixel defining layer 12 is formed on the array substrate 11 and exposes at least a part of each pixel electrode. For example, the pixel defining layer 12 may cover at least a part of the edge of each pixel electrode, thereby exposing at least a part of each pixel electrode. In this way, the pixel defining layer 12 defines a plurality of pixel openings 121 and an interval region (not labeled in the figure) located between the pixel openings 121, and the middle part or all parts of the pixel electrodes are exposed through the pixel openings 121.

[0047] In this way, the pixel defining layer 12 can increase the distance between the ends of each pixel electrode and the opposite electrode formed on each pixel electrode, and can prevent antireflection occurring at the ends of the pixel electrodes. For example, the pixel electrode may be formed on the planarization layer, and the height from the planarization layer to the upper surface of the pixel defining layer 12 is greater than the height from the planarization layer to the upper surface of the pixel electrode. The pixel defining layer 12 may cover at least a part of the edge of each pixel electrode, form a plurality of pixel openings 121, and the organic light-emitting layer 15 is filled in the pixel openings 121.

[0048] The cathode 16 is stacked on the organic light-emitting layer 15. The organic light-emitting layer 15 is located between the cathode 16 and the anode 14. Electrons injected from the cathode 16 and holes injected from the anode 14 combine with each other in the organic light-emitting layer 15 to form excitons. When the excitons release energy, light is emitted, realizing the display function of the display panel 100.

[0049] According to some embodiments of the present application, the substrate 10 further includes a packaging layer 18 covering the pixel unit 13. The packaging layer 18 packages and protects the relative unit 13 to prevent the pixel unit 13 from being oxidized and corroded, ensuring the stability of the display effect. Specifically, the packaging layer 18 is a TFE thin film packaging layer and is stacked on the side of the cathode 16 facing away from the array substrate 11.

[0050] According to some embodiments of the present application, the touch trace 32 and the conductive film trace 34 are stacked to form a touch layer 30. The touch layer 30 is mainly used to receive and process the touch operation signals of the user. When the user's finger or other conductive object touches the screen, the touch layer 30 can sense this contact and convert the touch signal into an electrical signal for processing, thereby realizing the control of the device. It can be understood that in the display panel 100 provided by the embodiments of the present application, the touch layer 30 can be either a mutual capacitance touch structure or a self-capacitance touch structure, which is not limited herein.

[0051] The material of the touch trace 32 is metal, such as any one or more of silver (Ag), copper (Cu), aluminum (Al), titanium (Ti), and molybdenum (Mo), or an alloy material of the above metals, such as aluminum neodymium alloy (AlNd) or molybdenum niobium alloy (MoNb), and can be a single-layer structure or a multi-layer composite structure, such as Ti / Al / Ti, etc.

[0052] The material of the conductive film trace 34 is a transparent conductive material, for example, indium tin oxide (ITO), indium zinc oxide, zinc oxide, indium sesquioxide, indium potassium oxide, or aluminum zinc oxide, etc.

[0053] According to some embodiments of the present application, the width of the touch trace 32 is smaller than the width of the conductive film trace 34. By narrowing the touch trace 32 in this way, it is possible to prevent the touch trace 32 from blocking the light of the pixel unit 13 at a low viewing angle and causing color deviation. At the same time, a conductive film trace 34 with a wider width is laminated on the touch trace 32 to increase the touch area and touch capacitance and ensure the touch effect.

[0054] Optionally, the width of the touch trace 32 is 1um - 5um, which is very narrow.

[0055] According to some embodiments of the present application, the width of the conductive film trace 34 is smaller than the spacing between two adjacent pixel openings 121. In this way, the width of the transparent conductive film is set wider, but the transparent conductive film does not extend above the pixel opening 121, does not affect the light emission of the pixel unit 13, reduces the light output loss, and further ensures the display effect.

[0056] Refer to Figure 2 , according to some embodiments of the present application, the conductive film trace 34 is located between the touch trace 32 and the substrate 10, that is, the conductive film trace 34 is located below the touch trace 32 to achieve the lamination of the two. Refer to Figure 3 , it can be understood that according to some other embodiments of the present application, the touch trace 32 is located between the conductive film trace 34 and the substrate 10, that is, the conductive film trace 34 is located above the touch trace 32 to achieve the lamination of the two. That is to say, the conductive film trace 34 can be located above the touch trace 32 or below the touch trace 32, and it can be set according to the actual situation.

[0057] Refer to Figure 2 - Figure 3 , according to some embodiments of the present application, the touch layer 30 is a self - capacitive touch structure. The touch trace 32 includes a self - capacitive electrode trace 321, and the conductive film trace 34 and the self - capacitive electrode trace 321 are laminated. In this way, the laminated self - capacitive electrode trace 321 and the conductive film trace 34 form a self - capacitive touch structure. The self - capacitive structure forms a capacitor with the ground, that is, the so - called self - capacitance, which is the capacitance of the electrode to the ground. When a finger touches the display panel 100, the capacitance of the finger will be superimposed on the screen capacitance, increasing the screen capacitance and causing a change in the total capacitance at that point.

[0058] Optionally, the conductive film trace 34 is located between the self-capacitance electrode trace 321 and the substrate 10, that is, the conductive film trace 34 is located below the self-capacitance electrode trace 321 to achieve the lamination of the two. Alternatively, the self-capacitance electrode trace 321 is located between the conductive film trace 34 and the substrate 10, that is, the conductive film trace 34 is located above the self-capacitance electrode trace 321 to achieve the lamination of the two.

[0059] Referring to Figure 4 , according to some embodiments of the present application, the touch trace 32 includes a transmitting electrode trace 323 and a receiving electrode trace 325. The receiving electrode trace 325 is located between the substrate 10 and the transmitting electrode trace 323, and the transmitting electrode trace 323 and the receiving electrode trace 325 are relatively spaced apart and insulated. The conductive film trace 34 is at least laminated with the transmitting electrode trace 323. In this way, the laminated transmitting electrode trace 323 and the conductive film trace 34 form a transmitting electrode, and the receiving electrode trace 325 is relatively spaced apart and insulated from the transmitting electrode, thus forming a mutual capacitance touch structure. When a finger touches the display panel 100, the coupling between the transmitting electrode and the receiving electrode trace 325 near the touch point is affected, thereby changing the capacitance between the transmitting electrode and the receiving electrode trace 325.

[0060] Moreover, the transmitting electrode trace 323 is laminated with the relatively wide conductive film trace 34 to ensure a sufficient sensing area for touch sensing and ensure the touch effect. At the same time, the relatively narrow transmitting electrode trace 323 can improve the display performance at a low viewing angle. For the receiving electrode trace 325, which is used to cooperate with the transmitting electrode to form a capacitance and does not directly participate in touch sensing, the receiving electrode trace 325 may or may not be laminated with the conductive film trace 34, which is not limited herein.

[0061] In some embodiments, the conductive film trace 34 is laminated with the transmitting electrode trace 323. In this way, the transmitting electrode trace 323 is laminated with the relatively wide conductive film trace 34 to ensure a sufficient sensing area for touch sensing and ensure the touch effect. At the same time, the relatively narrow transmitting electrode trace 323 can improve the display performance at a low viewing angle.

[0062] Moreover, the conductive film trace 34 is located on the side of the transmitting electrode trace 323 facing or facing away from the substrate 10, that is, the conductive film trace 34 is located between the transmitting electrode trace 323 and the substrate 10, that is, the conductive film trace 34 is located below the transmitting electrode trace 323 to achieve the lamination of the two; or, the transmitting electrode trace 323 is located between the conductive film trace 34 and the substrate 10, that is, the conductive film trace 34 is located above the transmitting electrode trace 323 to achieve the lamination of the two.

[0063] Referring to Figure 5In some embodiments, the conductive film wiring 34 includes two layers stacked on the transmitting electrode wiring 323 and the receiving electrode wiring 325, that is, the transmitting electrode wiring 323 and the receiving electrode wiring 325 are stacked with the conductive film wiring 34, so that the transmitting electrode wiring 323 and the receiving electrode wiring 325 can cooperate with the conductive film wiring 34 with a wider width to improve the ability to sense touch and receive touch signals, and further ensure the accuracy of touch sensing. In addition, the narrow transmitting electrode wiring 323 and the receiving electrode wiring 325 can improve the display performance at low viewing angles.

[0064] Furthermore, the conductive film wiring 34 stacked with the transmitting electrode wiring 323 is located on the side of the transmitting electrode wiring 323 facing toward or away from the substrate 10, that is, one layer of the two layers of conductive film wiring 34 is located above or below the transmitting electrode wiring 323, so as to realize the stacking of the conductive film wiring 34 and the transmitting electrode wiring 323; the conductive film wiring 34 stacked with the receiving electrode wiring 325 is located on the side of the receiving electrode wiring 325 facing toward or away from the substrate 10, that is, the other layer of the two layers of conductive film wiring 34 is located above or below the receiving electrode wiring 325, so as to realize the stacking of the conductive film wiring 34 and the receiving electrode wiring 325.

[0065] According to some implementations of the present application, the display panel 100 further includes a protective layer 50, which is located on the side of the touch layer 30 facing away from the substrate 10 to cover and protect the touch layer 30 and the internal structure of the display panel 100. Specifically, the protective layer 50 is an organic layer.

[0066] According to some embodiments of the present application, the touch wiring 32 and the conductive film wiring 34 are respectively manufactured by the same mask plate, and transition exposure and / or transition etching are performed when manufacturing the touch wiring 32. In this way, the touch wiring 32 and the conductive film wiring 34 can be manufactured using the same mask plate, thereby reducing the manufacturing cost.

[0067] For example, a stacked transparent conductive film base layer and a photoresist are first formed on the substrate 10, and then the photoresist is exposed using a first mask plate, the portion of the photoresist exposed to light is removed, and the remaining portion of the photoresist blocks the transparent conductive film base layer. Subsequently, the transparent conductive film layer is etched to remove the portion of the transparent conductive film base layer exposed relative to the photoresist, and finally the photoresist is removed to obtain a patterned conductive film trace 34.

[0068] Subsequently, a stacked touch electrode base layer and photoresist are arranged on the conductive film wiring 34, and the photoresist is continuously exposed using the first mask plate, and the exposure process is transitionally exposed so that the width of the remaining photoresist portion is relatively narrower. Subsequently, the portion of the touch electrode base layer relative to the exposed photoresist is etched to obtain a touch wiring 32 with a narrower width.

[0069] Understandably, the touch trace 32 can also be fabricated by overexposure or etching using the first mask plate first, and then the conductive film trace 34 can be fabricated by laminating using the first mask plate.

[0070] According to some embodiments of the present application, the touch trace 32 and the conductive film trace 34 are fabricated by a halftone mask plate, and the two film layers are fabricated simultaneously, and the fabrication process is simple.

[0071] A halftone mask plate (Half Tone Mask, abbreviated as HTM) generally has a light-transmitting area, a semi-light-transmitting area, and a light-blocking area. In the process of fabricating the touch layer 30, a transparent conductive film base layer, a touch electrode base layer, and a photoresist are sequentially laminated on the substrate 10. The photoresist is exposed using the halftone mask plate. The photoresist corresponding to the light-transmitting area is completely removed, the upper part of the photoresist in the semi-light-transmitting area is removed, and the photoresist in the light-blocking area is retained. Finally, the remaining photoresist is in a "convex" shape, that is, the photoresist includes a first part with a higher height and second parts with a lower height on both sides of the first part. At this time, the first etching is performed to remove the exposed touch trace 32 base layer and the transparent conductive film base layer relative to the first part and the second parts; subsequently, the second part of the photoresist corresponding to the semi-light-transmitting area of the halftone mask plate is removed, and the remaining first part has a narrower width. Subsequently, the exposed part of the touch trace 32 relative to the first part is etched, so as to form a touch trace 32 with a narrower width and a conductive film trace 34 with a wider width. The entire fabrication process only requires the use of a halftone mask plate once, and the fabrication process is simple.

[0072] In the above display panel 100, the touch layer 30 includes a touch trace 32 and a conductive film trace 34 which are laminated. Both the touch trace 32 and the conductive film trace 34 are disposed around the outer periphery of the pixel opening 121. The orthographic projection of the conductive film trace 34 on the substrate 10 covers the orthographic projection of the touch trace 32 on the substrate 10. The orthographic projection of the conductive film trace 34 covering the orthographic projection of the touch trace 32 on the substrate 10 is equivalent to the outer contour of the orthographic projection of the touch trace 32 on the substrate 10 being located within the outer contour of the orthographic projection of the conductive film trace 34 on the substrate 10. The conductive film trace 34 can be set wider, and the touch trace 32 can be set narrower. The distance between the narrower touch trace 32 and the edge of the pixel opening 121 is farther, allowing the light at the pixel opening 121 to be emitted even at a low viewing angle, preventing the touch trace 32 from blocking the light at a low viewing angle and causing color deviation, and improving the display performance at a low viewing angle.

[0073] At the same time, after making the touch trace 32 thinner, in order to prevent the touch area of the touch trace 32 from becoming smaller and affecting the touch effect, the touch trace 32 and the conductive film trace 34 are laminated to ensure a sufficient touch area and touch capacitance, so as to ensure that the touch effect is not affected after the touch trace 32 becomes thinner. In this way, both the touch effect can be ensured and the display performance at a low viewing angle can be improved.

[0074] According to some embodiments of the present application, the present application further provides a display module, including the display panel 100 described in any of the above embodiments, which has the same technical effects as the above display panel 100 and will not be elaborated here.

[0075] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0076] The above-described embodiments only represent several implementation manners of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the appended claims.

Claims

1. A display panel, characterized in that: include: A substrate having a plurality of pixel units arranged in an array, each of the pixel units emitting light from a corresponding pixel opening; A touch layer is arranged on one side of the substrate and includes a touch wiring and a conductive film wiring that are stacked, wherein the touch wiring and the conductive film wiring are both arranged around the periphery of the pixel opening; The orthographic projection of the conductive film wiring on the substrate covers the orthographic projection of the touch wiring on the substrate.

2. The display panel according to claim 1, characterized in that: The width of the touch control wiring is smaller than the width of the conductive film wiring; Preferably, the conductive film wiring is made of a transparent conductive material; Preferably, the conductive film wiring is located between the touch control wiring and the substrate, or the touch control wiring is located between the conductive film wiring and the substrate.

3. The display panel according to claim 2, characterized in that: The width of the touch line is 1um-5um.

4. The display panel according to claim 2, characterized in that: The width of the conductive film wiring is smaller than the distance between two adjacent pixel openings.

5. The display panel according to any one of claims 1 to 4, characterized in that: The touch control wiring includes a transmitting electrode wiring and a receiving electrode wiring, the receiving electrode wiring is located between the substrate and the transmitting electrode wiring, and the transmitting electrode wiring and the receiving electrode wiring are relatively spaced and insulated, and the conductive film wiring is at least stacked with the transmitting electrode wiring; Preferably, the conductive film wiring is stacked with the emitter electrode wiring; Preferably, the conductive film wiring includes two layers stacked with the transmitting electrode wiring and the receiving electrode wiring respectively.

6. The display panel according to claim 5, characterized in that: The conductive film wiring is stacked with the emitting electrode wiring, and the conductive film wiring is located on the side of the emitting electrode wiring facing toward or away from the substrate; or The conductive film routing includes two layers stacked on the transmitting electrode routing and the receiving electrode routing, respectively. The conductive film routing stacked with the transmitting electrode routing is located on the side of the transmitting electrode routing facing toward or away from the substrate, and the conductive film routing stacked with the receiving electrode routing is located on the side of the receiving electrode routing facing toward or away from the substrate.

7. The display panel according to any one of claims 1 to 4, characterized in that: The touch control wiring includes a self-capacitance electrode wiring, and the conductive film wiring and the self-capacitance electrode wiring are stacked.

8. The display panel according to claim 7, characterized in that: The conductive film wiring is located between the self-capacitance electrode wiring and the substrate, or the self-capacitance electrode wiring is located between the conductive film wiring and the substrate.

9. The display panel according to any one of claims 1 to 4, characterized in that: The touch wiring and the conductive film wiring are manufactured by using the same mask plate, and the touch wiring is over-exposed and / or over-etched when manufacturing the touch wiring; or The touch control wiring and the conductive film wiring are made by using a half-tone mask.

10. A display module, characterized in that: A display panel comprising any one of claims 1 to 9.

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