Display module and display device

Abstract

The present application relates to a display module and a display device. The display module has a display area and a non-display area; the display module includes: a display substrate, the display substrate includes a substrate, and a metal layer located on the substrate, the metal layer includes a signal trace, and the signal trace extends to the edge of the non-display area away from the display area; an electrostatic protection layer, at least part of the electrostatic protection layer is arranged on the outer peripheral side of the display substrate along a thickness direction perpendicular to the display substrate, and is electrically connected to the signal trace in the non-display area. By providing an electrostatic protection layer electrically connected to the trace, the static electricity on the trace can be conducted to the electrostatic protection layer, thereby preventing the static electricity on the trace from flowing along the trace into the interior of the display module, and releasing the static electricity on the trace through the electrostatic protection layer, which can change the original flow direction of the static electricity on the trace, and at the same time, the electrostatic protection layer can also block external static electricity. Therefore, the display module using the solution of the present application has better anti-static ability.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to a display module and a display device. Background Art

[0002] Organic Light-Emitting Diodes (OLEDs) offer excellent properties such as self-luminescence, high brightness, wide viewing angles, high contrast, low energy consumption, fast response times, a wide operating temperature range, high luminous efficiency, and simple manufacturing processes. Consequently, OLED display panels are increasingly being used. However, static electricity is generated during the use of OLED display panels. Improving the antistatic properties of OLED display panels is a challenge currently under investigation. Summary of the Invention

[0003] Therefore, it is necessary to provide a display module and a display device with better antistatic ability to address the above technical problems.

[0004] A display module having a display area and a non-display area; the display module comprises: a display substrate, the display substrate comprising a substrate, and a metal layer located on the substrate, the metal layer comprising signal traces, the signal traces extending to the edge of the non-display area away from the display area; an electrostatic protection layer, at least a portion of the electrostatic protection layer being arranged on the outer peripheral side of the display substrate along a direction perpendicular to the thickness of the display substrate, and being electrically connected to the signal traces in the non-display area.

[0005] In one embodiment, the electrostatic protection layer includes: a first electrostatic protection layer, which is arranged on at least one side of the display substrate along its thickness direction; a second electrostatic protection layer, which is arranged on the outer peripheral side of the display substrate along a direction perpendicular to the thickness of the display substrate, and is electrically connected to the signal line and the first electrostatic protection layer respectively.

[0006] In one embodiment, the metal layer, the first electrostatic protection layer, and the second electrostatic protection layer are made of the same material.

[0007] In one embodiment, the display module further includes: an encapsulation layer, arranged on the light-emitting side of the display substrate; in the non-display area, the first electrostatic protection layer covers the side of the encapsulation layer away from the display substrate; and / or in the non-display area, the first electrostatic protection layer covers the side of the display substrate away from the encapsulation layer.

[0008] In one embodiment, the non-display area is arranged around the display area; the first electrostatic protection layer includes a first sub-electrostatic protection layer located in the non-display area, and a second sub-electrostatic protection layer located in the display area; wherein the first sub-electrostatic protection layer includes a continuous pattern, and the second sub-electrostatic protection layer includes a grid pattern.

[0009] In one embodiment, the display substrate includes a plurality of thin film transistors arranged on the substrate; the orthographic projection of the second sub-electrostatic protection layer on the substrate covers the orthographic projection of the channel region of each thin film transistor on the substrate.

[0010] In one embodiment, the first sub-electrostatic protection layer includes a plurality of strip-shaped protection structures spaced apart around the display area.

[0011] In one embodiment, in the non-display area, the orthographic projection of part of the signal routing on the substrate is located outside the orthographic projection of the packaging layer on the substrate; the orthographic projection of the first electrostatic protection layer on the substrate covers the orthographic projection of part of the signal routing on the substrate that is located outside the packaging layer.

[0012] In one embodiment, the display substrate further includes: a plurality of functional film layers stacked between the metal layer and the packaging layer; a contact hole located in the non-display area, the contact hole passing through the plurality of functional film layers, the first electrostatic protection layer filling the contact hole and being electrically connected to the signal line.

[0013] In one embodiment, the first electrostatic protection layer located on a side of the encapsulation layer away from the display substrate is electrically connected to the first electrostatic protection layer located on a side of the display substrate away from the encapsulation layer through the second electrostatic protection layer.

[0014] A display device, characterized by comprising the above-mentioned display module.

[0015] In one embodiment, the display device further includes a frame, and the frame covers a side of the electrostatic protection layer away from the display substrate.

[0016] The above-mentioned display module and display device are provided with a substrate and a metal layer on the substrate in the display substrate, and the metal layer includes a signal line for connecting electrical signals, and the signal line extends to the outer edge of the metal layer, thereby providing a data interaction and power supply line for the display module, wherein at least part of the electrostatic protection layer is provided on the outer peripheral side of the display substrate and is electrically connected to the signal line in the non-display area. Since the signal line is used to transmit electrical signals, static electricity is most likely to be generated on the signal line due to charge accumulation. If static electricity is introduced into the interior of the display module through the signal line, it will cause damage to the devices inside the display module. The provision of an electrostatic protection layer electrically connected to the signal line can guide the static electricity on the signal line to the electrostatic protection layer, preventing the static electricity on the signal line from flowing into the interior of the display module along the signal line, and releasing the static electricity on the signal line through the electrostatic protection layer, which can change the original flow direction of the static electricity on the signal line. At the same time, the electrostatic protection layer can also block external static electricity. Therefore, the display module using the solution of the present application has better anti-static ability. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the conventional technology, the following briefly introduces the drawings required for use in the embodiments or the conventional technology descriptions. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 is a schematic structural diagram of a display module in one embodiment;

[0019] Figure 2 is a schematic structural diagram of a display module in another embodiment;

[0020] Figure 3 is a structural diagram of a display module in yet another embodiment;

[0021] Figure 4 is a structural diagram of a display module in yet another embodiment;

[0022] Figure 5 is a schematic structural diagram of a display module including an encapsulation layer in one embodiment;

[0023] Figure 6 is a schematic structural diagram of a display module including an encapsulation layer in another embodiment;

[0024] Figure 7 is a schematic structural diagram of a display module including an encapsulation layer in yet another embodiment;

[0025] Figure 8Schematic diagram of the structure of an electrostatic protection layer in one embodiment;

[0026] Figure 9 A schematic structural diagram showing a substrate in one embodiment;

[0027] Figure 10 is a schematic diagram of the relative positions of the second electrostatic protection layer and the display substrate in one embodiment;

[0028] Figure 11 Schematic diagram of the structure of the first sub-electrostatic protection layer in one embodiment;

[0029] Figure 12 is a structural diagram of a display module in yet another embodiment;

[0030] Figure 13 is a structural diagram of a display module in yet another embodiment;

[0031] Figure 14 is a schematic diagram of an exemplary structure of a display module in one embodiment;

[0032] Figure 15 FIG. 1 is a schematic structural diagram of a display device in an embodiment.

[0033] Explanation of the accompanying drawings: A1-display area, A2-non-display area, 10-display substrate, 11-metal layer, 110-signal routing, 20-electrostatic protection layer, 21-first electrostatic protection layer, 22-second electrostatic protection layer, 40-packaging layer, 41-cover plate, 42-glass glue layer, 211-first sub-electrostatic protection layer, 212-second sub-electrostatic protection layer, 12-substrate, 13-thin film transistor, 50-multiple functional film layers, 60-contact hole, 51-insulating dielectric layer, 52-interlayer insulating layer, 54-buffer layer, 55-isolation layer, 70-frame. DETAILED DESCRIPTION

[0034] To facilitate understanding of the present application, the present application will be described more fully below with reference to the accompanying drawings. The accompanying drawings provide embodiments of the present application. However, the present application may be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of the present application more thorough and comprehensive.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application pertains. The terms used herein in the specification of this application are for the purpose of describing specific embodiments only and are not intended to limit this application.

[0036] It will be understood that the terms "first," "second," etc. used herein may be used to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish a first element from another element.

[0037] Spatially relative terms such as "under," "beneath," "beneath," "under," "above," "above," etc., may be used herein to describe the relationship of an element or feature shown in the figures to other elements or features. It should be understood that in addition to the orientations shown in the figures, spatially relative terms also include different orientations of the device in use and operation. For example, if the device in the drawings is turned over, the element or feature described as "under" or "beneath" or "beneath" the other elements will be oriented as "above" the other elements or features. Thus, the exemplary terms "under" and "under" can include both upper and lower orientations. In addition, the device can also include alternative orientations (e.g., rotated 90 degrees or other orientations), and the spatial descriptors used herein are interpreted accordingly.

[0038] It should be noted that when an element is considered to be "connected" to another element, it can be directly connected to the other element or connected to the other element through an intervening element. In addition, the "connection" in the following embodiments should be understood as "electrical connection", "communication connection", etc., if there is transmission of electrical signals or data between the connected objects.

[0039] As used herein, the singular forms "a," "an," and "the" may also include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "include," "comprising," "having," and the like specify the presence of stated features, integers, steps, operations, components, parts, or combinations thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof. Furthermore, the term "and / or" as used in this specification includes any and all combinations of the relevant listed items.

[0040] In one embodiment, Figure 1 As shown, a display module is provided, which has a display area A1 and a non-display area A2. The display module includes: a display substrate 10, a metal layer 11, and an electrostatic protection layer 20.

[0041] The display area A1 refers to the area of ​​the display substrate 10 used for display, and the non-display area A2 refers to the border area of ​​the display substrate 10 or the hole area of ​​the display substrate 10. The non-display area A2 is generally used to set drive signal routing and drive circuits, such as: array substrate row drive (Gate Driver on Array, GOA) drive circuit or for setting an in-screen camera, earpiece or speaker, etc.

[0042] The display substrate 10 includes a substrate 12 and a metal layer 11 on the substrate 12 . The metal layer 11 includes a signal trace 110 . The signal trace 110 extends to the outside of the non-display area A2 and away from the edge of the display area A1 .

[0043] Exemplarily, the portion of the metal layer 11 located in the display area A1 of the display substrate 10 may also include the electrode layer, capacitor metal, etc. of the display substrate 10, so as to meet the needs of the display module to display images, and the portion of the metal layer 11 located in the non-display area A2 of the display substrate 10 may include a signal trace. Specifically, the signal trace 110 may include an ELVSS signal trace for connecting to a common potential. Optionally, the signal trace 110 may also include a driving line for transmitting a driving power signal. The signal trace 110 extends to the edge of the non-display area A2 away from the display area A1, so as to facilitate the conduction of static electricity on the signal trace 110 to the outer edge of the display substrate.

[0044] At least part of the electrostatic protection layer 20 is arranged on the outer peripheral side of the display substrate 10 along the thickness direction perpendicular to the display substrate 10, and is electrically connected to the signal trace 110 of the non-display area A2. Specifically, the electrostatic protection layer 20 is a conductive material, which can be a metal or a metal oxide, and can play a role in guiding the transmission of static electricity. For example, metals such as gold, silver, molybdenum, aluminum or titanium, or metal oxides such as indium tin oxide (Indium Tin Oxide, ITO) can also be included. By providing the electrostatic protection layer 20, static electricity can be released through a large area of ​​metal, thereby avoiding damage to the display module caused by static electricity.

[0045] In this embodiment, by setting a substrate and a metal layer on the substrate in the display substrate, and the metal layer includes a signal line for connecting electrical signals, and the signal line extends to the outer edge of the non-display area, it is possible to provide a data interaction and power supply line for the display module, wherein at least part of the electrostatic protection layer is set on the outer peripheral side of the display substrate and is electrically connected to the signal line in the non-display area. Since the signal line is used to transmit electrical signals, static electricity is easily generated on the signal line due to charge accumulation. If static electricity is introduced into the interior of the display module through the signal line, it will cause damage to the devices inside the display module. Setting an electrostatic protection layer electrically connected to the signal line can guide the static electricity on the signal line to the electrostatic protection layer, preventing the static electricity on the signal line from flowing into the interior of the display module along the signal line, and releasing the static electricity on the signal line through the electrostatic protection layer, which can change the original flow direction of the static electricity on the signal line. At the same time, the electrostatic protection layer can also block external static electricity. Therefore, the display module using the solution of the present application has better anti-static ability.

[0046] In one embodiment, Figure 2 、 3 As shown in Figures 4 and 5, the electrostatic protection layer 20 includes a first electrostatic protection layer 21 and a second electrostatic protection layer 22. The first electrostatic protection layer 21 is disposed on at least one side of the display substrate 10 along its thickness direction. The second electrostatic protection layer 22 is disposed on the outer peripheral side of the display substrate 10 perpendicular to the thickness direction of the display substrate 10 and is electrically connected to the signal trace 110 and the first electrostatic protection layer 21, respectively.

[0047] For example, Figure 2 As shown, the first electrostatic protection layer 21 is disposed on the first side surface of the display substrate 10 .

[0048] For example, Figure 3 As shown, the first electrostatic protection layer 21 is disposed on a second side surface of the display substrate 10 that is opposite to the first side surface.

[0049] For example, Figure 4 As shown, the first electrostatic protection layer 21 is disposed on the first side surface and the second side surface of the display substrate 10 .

[0050] In one embodiment, Figure 5 As shown, in the non-display area A2 , the first electrostatic protection layer 21 covers the side of the encapsulation layer 40 away from the display substrate 10 .

[0051] In one embodiment, Figure 6 As shown, in the non-display area A2 , the first electrostatic protection layer 21 covers the side of the display substrate 10 away from the encapsulation layer 40 .

[0052] In this embodiment, by also providing an electrostatic protection layer on at least one side of the display substrate in the thickness direction, the area of ​​the electrostatic protection layer and the area covered by the electrostatic protection layer are increased, thereby increasing the area for static discharge, enabling more uniform and rapid static discharge, and improving the anti-static capability of the display module.

[0053] In one embodiment, the metal layer 11, the first electrostatic protection layer 21, and the second electrostatic protection layer 22 can be made of the same material, different materials, or at least two of the same material. The materials are conductive materials, such as metals or metal oxides, that can guide static electricity transmission, such as gold, silver, molybdenum, aluminum, or titanium, or metal oxides such as indium tin oxide (ITO).

[0054] Optionally, the metal layer 11, the first electrostatic protection layer 21 and the second electrostatic protection layer 22 are made of the same material, thereby facilitating the conduction of static electricity.

[0055] In one embodiment, Figure 5 、 6 As shown in FIG. 7 , the display module further includes: an encapsulation layer 40 , wherein the encapsulation layer 40 is disposed on the light-emitting side of the display substrate 10 .

[0056] Specifically, the encapsulation layer 40 can be an encapsulation substrate, including a glass glue layer 42 and a cover plate 41 stacked in sequence, and is arranged on the light-emitting side of the display substrate 10, so as to isolate the display substrate 10 and prevent the display substrate 10 from being corroded by external oxygen or water vapor and malfunctioning. For example, for a rigid screen, the display substrate 10 is usually encapsulated by glass frit encapsulation. The glass frit is printed on the cover glass, and a laser beam is used to move and heat the glass frit to melt to form an airtight package. The glass frit melts on the cover glass to form a layer of sealing body. Among them, the cover glass is the cover plate 41, and the melted glass frit is the glass glue layer 42.

[0057] In one embodiment, Figure 7 As shown, in the non-display area A2 , the first electrostatic protection layer 21 covers the side of the encapsulation layer 40 away from the display substrate 10 and the side of the display substrate 10 away from the encapsulation layer 40 .

[0058] Specifically, the electrostatic protection layer 20 may be provided only on the side of the encapsulation layer 40 away from the display substrate 10, or only on the side of the display substrate 10 away from the encapsulation layer 40, or simultaneously on the side of the encapsulation layer 40 away from the display substrate 10 and the side of the display substrate 10 away from the encapsulation layer 40. The configuration may be adjusted as required.

[0059] In this embodiment, the electrostatic protection layer 20 is designed to cover the side of the encapsulation layer 40 away from the display substrate 10 and / or the side of the encapsulation layer 40 away from the display substrate 10, thereby increasing the area of ​​the electrostatic protection layer 20 and the area covered by the electrostatic protection layer 20, so that the area for releasing static electricity is larger, the static electricity can be released more evenly, and the static electricity can be released more quickly, thereby improving the anti-static ability of the display module.

[0060] In one embodiment, see Figure 7 The first electrostatic protection layer 21 located on the side of the encapsulation layer 40 away from the display substrate 10 is electrically connected to the first electrostatic protection layer 21 located on the side of the display substrate 10 away from the encapsulation layer 40 through the second electrostatic protection layer 22.

[0061] In this embodiment, the first electrostatic protection layer 21 located on the side of the packaging layer 40 away from the display substrate 10 is electrically connected to the first electrostatic protection layer 21 located on the side of the display substrate 10 away from the packaging layer 40 through the second electrostatic protection layer 22, thereby increasing the total area of ​​the electrostatic protection layer, quickly dissipating the static electricity on the signal line 110, and improving the anti-static performance of the display module.

[0062] In one embodiment, Figure 8 As shown, the non-display area A2 is disposed around the display area A1. The first electrostatic protection layer 21 includes a first sub-electrostatic protection layer 211 located in the non-display area A2 and a second sub-electrostatic protection layer 212 located in the display area A1.

[0063] The first sub-electrostatic protection layer 211 includes a continuous pattern, which may be a whole piece of conductive material or a metal material including patterns of any shape, without limitation. The second sub-electrostatic protection layer 212 includes a grid pattern.

[0064] Specifically, the display area A1 refers to the area of ​​the display substrate 10 used for display, and the non-display area A2 refers to the border area of ​​the display substrate 10. The second sub-electrostatic protection layer 212 is arranged on the side of the display substrate 10 in the display area A1 away from the light-emitting side, so as not to block the light emission of the display substrate 10.

[0065] In this embodiment, by providing a first sub-electrostatic protection layer 211 and a second sub-electrostatic protection layer 212, and the second sub-electrostatic protection layer 212 is in a grid shape, it is possible to cover as large an area as possible while saving costs and reducing the weight of the second sub-electrostatic protection layer 212.

[0066] In one embodiment, Figure 9As shown, the display substrate 10 includes a plurality of thin film transistors 13 (Thin Film Transistor, TFT) arranged on a substrate 12. Exemplarily, the channel material of the thin film transistor 13 can be indium gallium zinc oxide (IndiumGalliumZincOxide, IGZO), indium tin zinc oxide (IndiumTinZincOxide, ITZO), indium zinc oxide (IndiumZincOxide, IZO), low temperature polycrystalline silicon (LowTemperaturePoly-silicon, LTPS), single crystal silicon, or amorphous silicon (a-Si) and polycrystalline silicon (poly-Si). However, amorphous silicon is a light-sensitive material. After being irradiated by a light beam, it is easy to generate photocurrent, and it is easy to cause light leakage to cause the display screen of the display device to flicker, thereby affecting the display of the display substrate 10. In order to avoid the occurrence of light leakage, in an embodiment of the present application, the orthographic projection of the second sub-electrostatic protection layer 212 on the substrate 12 covers the orthographic projection of the channel region of each thin film transistor 13 on the substrate 12, which can avoid the occurrence of light leakage.

[0067] like Figure 10 As shown, the second sub-electrostatic protection layer 212 is disposed on the side of the display substrate 10 away from the light emitting surface, and the orthographic projection of the second sub-electrostatic protection layer 212 on the substrate 12 covers the channel region of the thin film transistor 13 .

[0068] In this embodiment, the second sub-electrostatic protection layer 212 shields the TFT channel region, thereby preventing light leakage from the TFT channel region. Furthermore, the second sub-electrostatic protection layer 212 also conducts and releases static electricity. Furthermore, the second sub-electrostatic protection layer 212 is designed in a grid pattern, which reduces the material required for the second sub-electrostatic protection layer 212, thereby saving costs and reducing the weight of the display module.

[0069] In one embodiment, Figure 11 As shown, the first sub-electrostatic protection layer 211 includes a plurality of strip-shaped protection structures spaced apart around the display area A1.

[0070] Specifically, a plurality of strip structures are arranged at intervals along the periphery of the display area A1.

[0071] In this embodiment, the first sub-static protection layer 211 is a plurality of strip-shaped structures disposed around the display area A1, thereby facilitating uniform discharge of static electricity.

[0072] In one embodiment, Figure 12 As shown, in the non-display area A2 , the orthographic projection of at least a portion of the signal traces 110 on the substrate 12 is located outside the orthographic projection of the packaging layer 40 on the substrate 12 .

[0073] The orthographic projection of the first electrostatic protection layer 21 on the substrate 12 covers the orthographic projection of a portion of the signal trace 110 located outside the packaging layer 40 on the substrate 12 .

[0074] In this embodiment, the metal layer extends to the outside of the packaging layer 40, so that the signal line 110 also extends to the outside of the packaging layer, but the metal layer is covered in the first electrostatic protection layer 21, so that the static electricity on the signal line 110 can be evacuated through the first electrostatic protection layer 21. At the same time, the first electrostatic protection layer 21 can also block external static electricity from contacting the signal line 110, thereby preventing static electricity from entering the display module from the signal line 110 and causing damage to the display module.

[0075] In one embodiment, Figure 13 As shown, the display substrate 10 further includes: a plurality of functional film layers 50 and contact holes 60.

[0076] The plurality of functional film layers 50 are stacked between the metal layer 11 and the packaging layer 40. Specifically, the plurality of functional film layers 50 may include an insulating layer, an interlayer dielectric layer, and the like.

[0077] The contact hole 60 is located in the non-display area A2 . The contact hole 60 penetrates the multiple functional film layers 50 . The first electrostatic protection layer 21 fills the contact hole 60 and is electrically connected to the signal trace 110 .

[0078] Specifically, contact holes 60 are set up to pass through multiple functional film layers 50, so as to provide space for the first electrostatic protection layer 21, so that the first electrostatic protection layer 21 can be connected to the metal layer 11 through the contact hole 60, and then electrically connected to the signal line 110, so as to dissipate the static electricity on the signal line 110.

[0079] In this embodiment, by setting contact holes 60 that pass through multiple functional film layers 50, when a large part of the encapsulation layer 40 is cut, an area that can accommodate the first electrostatic protection layer 21 can be reserved on the multiple functional film layers 50, so that the first electrostatic protection layer 21 can be filled in the contact hole 60, and then contact the metal layer 11, thereby achieving the effect of evacuating static electricity on the signal line 110 in the metal layer 11. The contact hole 60 provides a larger electrical connection area between the electrostatic protection layer 20 and the metal layer 11, thereby facilitating the first electrostatic protection layer 21 to better evacuate static electricity on the signal line 110.

[0080] In one embodiment, Figure 14 As shown, the multiple functional film layers 50 of the display module include an insulating dielectric layer 51 and an interlayer insulating layer 52 stacked in sequence.

[0081] Exemplarily, the insulating dielectric layer 51 is used to isolate the capacitor and the signal wiring, thereby preventing the signal wiring from being short-circuited.

[0082] Exemplarily, the interlayer insulating layer 52 may be a passivation layer, which can play an insulating role.

[0083] In this embodiment, by providing a plurality of functional film layers 50 , the working requirements of the display module can be met, making the operation of the display module more stable.

[0084] In one embodiment, see Figure 14 The display substrate 10 further includes a buffer layer 54 and an isolation layer 55 stacked in sequence.

[0085] The buffer layer 54 and the isolation layer 55 are stacked between the metal layer 11 and the substrate 12 .

[0086] Exemplarily, the buffer layer 54 can block external water and oxygen and adjust the energy and temperature of the laser.

[0087] Exemplarily, the isolation layer 55 can isolate the gate of the thin film transistor 13 from other semiconductor layers.

[0088] In this embodiment, the buffer layer 54 and the isolation layer 55 are provided to meet the working requirements of the display module, making the operation of the display module more stable.

[0089] In one embodiment, a display device is provided, comprising the display module described in the above embodiment.

[0090] Specifically, the display device may be a mobile or fixed terminal such as a mobile phone, a television, a tablet computer, a notebook computer, an ultra-mobile personal computer (UMPC), a personal digital assistant (PDA), a virtual reality device, or the like.

[0091] In this embodiment, the display device using the above display module has better anti-static performance.

[0092] In one embodiment, Figure 15 As shown, a display device is provided, comprising the display module described in the above embodiment. The display device further comprises a frame 70 , which covers the side of the electrostatic protection layer 20 away from the display substrate 10 .

[0093] Specifically, the electrostatic protection layer 20 is electrically connected to the frame 70 , thereby being able to conduct static electricity in the display module to the frame.

[0094] In this embodiment, a frame of the display device is provided on the side of the electrostatic protection layer away from the display substrate 10 , providing a static electricity dissipation channel so that the electrostatic protection layer can transfer the static electricity to the frame for dissipation.

[0095] Throughout this specification, references to terms such as "some embodiments," "other embodiments," and "desired embodiments" indicate that a particular feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. Although these terms are used interchangeably throughout this specification, they do not necessarily refer to the same embodiment or example.

[0096] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, 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, they should be considered to be within the scope of this specification.

[0097] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art could make various modifications and improvements without departing from the spirit of the present application, all of which fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. A display module, characterized in that: Having a display area and a non-display area; The display module includes: A display substrate, comprising a substrate and a metal layer on the substrate, wherein the metal layer comprises a signal trace, and the signal trace extends to an edge of the non-display area away from the display area; the display substrate comprises a plurality of thin film transistors disposed on the substrate; An electrostatic protection layer, at least a portion of which is disposed on the outer peripheral side of the display substrate along a thickness direction perpendicular to the display substrate and electrically connected to the signal trace in the non-display area; the electrostatic protection layer is used to guide static electricity on the signal trace to the electrostatic protection layer, thereby preventing static electricity on the signal trace from flowing into the interior of the display module along the signal trace, and releasing static electricity on the signal trace through the electrostatic protection layer, thereby changing the original flow direction of static electricity on the signal trace and blocking external static electricity; the electrostatic protection layer includes: a first electrostatic protection layer, the first electrostatic protection layer being disposed on at least one side of the display substrate along a thickness direction thereof; the first electrostatic protection layer comprising a first sub-electrostatic protection layer located in the non-display area, and a second sub-electrostatic protection layer located in the display area, wherein an orthographic projection of the second sub-electrostatic protection layer on the substrate covers an orthographic projection of a channel region of each thin film transistor on the substrate; The second electrostatic protection layer is provided on the outer peripheral side of the display substrate along a thickness direction perpendicular to the display substrate, and is electrically connected to the signal trace and the first electrostatic protection layer respectively.

2. The display module according to claim 1, wherein: The metal layer, the first electrostatic protection layer and the second electrostatic protection layer are made of the same material.

3. The display module according to claim 2, wherein: The display module further includes: an encapsulation layer, disposed on the light-emitting side of the display substrate; In the non-display area, the first electrostatic protection layer covers a side of the encapsulation layer away from the display substrate; and / or In the non-display area, the first electrostatic protection layer covers a side of the display substrate away from the encapsulation layer.

4. The display module according to claim 3, wherein: The non-display area is arranged around the display area; wherein the first sub-electrostatic protection layer includes a continuous pattern, and the second sub-electrostatic protection layer includes a grid pattern.

5. The display module according to claim 4, wherein: The first sub-electrostatic protection layer includes a plurality of strip-shaped protection structures spaced apart around the display area.

6. The display module according to claim 3, wherein: In the non-display area, an orthographic projection of part of the signal traces on the substrate is located outside an orthographic projection of the packaging layer on the substrate; The orthographic projection of the first electrostatic protection layer on the substrate covers the orthographic projection of a portion of the signal trace located outside the packaging layer on the substrate.

7. The display module according to claim 6, wherein: The display substrate further includes: A plurality of functional film layers are stacked between the metal layer and the packaging layer; A contact hole is located in the non-display area, the contact hole penetrates the multiple functional film layers, and the first electrostatic protection layer fills the contact hole and is electrically connected to the signal trace.

8. The display module according to claim 3, wherein: The first electrostatic protection layer located on a side of the encapsulation layer away from the display substrate is electrically connected to the first electrostatic protection layer located on a side of the display substrate away from the encapsulation layer through the second electrostatic protection layer.

9. A display device, characterized in that: The display module comprises the display module according to any one of claims 1 to 8.

10. The display device according to claim 9, wherein The display device further includes a frame, which covers a side of the electrostatic protection layer away from the display substrate.

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