Display module and display device

Abstract

This disclosure provides a display module and display device, relating to the field of display technology, which can improve the electrostatic discharge (ESD) protection performance of the display module. The display module includes a display panel, a protective layer, and an ESD protection layer. The display panel includes a display portion, a bent portion connected to the display portion, and a circuit board connection portion located on the side of the bent portion away from the display portion; the bent portion is bendable towards the back of the display portion, so that the circuit board connection portion is folded to the back of the display portion; the protective layer is located on the side of the display panel for electrically connecting chips and at least covers the bent portion; the ESD protection layer is located on the same side of the display panel as the protective layer, and the ESD protection layer covers the circuit board connection portion and at least a portion of the protective layer. The above-described display module and display device are used for displaying images.

Description

Technical Field

[0001] This disclosure relates to the field of display technology, and in particular to a display module and display device. Background Technology

[0002] Organic light-emitting diode (OLED) display panels have gradually become one of the mainstream technologies in the display field due to their excellent performance such as low power consumption, high color saturation, wide viewing angle, thinness, and flexibility. OLED display panels can be widely used in terminal products such as smartphones, tablets, and televisions.

[0003] Using COP (chip on panel) packaging technology, chips can be directly packaged onto the display panel. To prevent static electricity from affecting the chips on the display panel, an electrostatic discharge (ESD) shielding layer is typically applied to the chips. Summary of the Invention

[0004] The purpose of this disclosure is to provide a display module and display device that can improve the electrostatic discharge protection performance of the display module.

[0005] To achieve the above objectives, some embodiments of this disclosure provide the following technical solutions:

[0006] In a first aspect, a display module is provided, including a display panel, a protective layer, and an electrostatic discharge (ESD) protection layer. The display panel includes a display portion, a bent portion connected to the display portion, and a circuit board connection portion located on the side of the bent portion away from the display portion; the bent portion is bendable toward the back side of the display portion, so that the circuit board connection portion is folded to the back side of the display portion. The protective layer is located on the side of the display panel for electrically connecting chips and at least covers the bent portion. The ESD protection layer is located on the same side of the display panel as the protective layer, and covers the circuit board connection portion and at least a portion of the protective layer.

[0007] In some embodiments, of the two opposite ends of the electrostatic protective layer along a first direction, the first end extends to the side of the protective layer away from the display panel, and the second end extends to the side of the circuit board connection portion away from the display portion.

[0008] In some embodiments, the display module further includes a cover plate disposed on the light-emitting side of the display panel; when the circuit board connection portion is folded to the back side of the display portion, the orthographic projection of the bent portion on the reference surface is located within the orthographic projection range of the cover plate on the reference surface; the reference surface is parallel to the display surface of the display panel. When the circuit board connection portion is not folded to the back side of the display portion, the orthographic projection of the electrostatic protective layer on the reference surface is offset from the orthographic projection of the cover plate on the reference surface.

[0009] In some embodiments, the electrostatic protection layer includes an insulating layer and a conductive layer stacked and sequentially away from the display panel. The insulating layer and the conductive layer substantially overlap, and when the circuit board connection portion is not folded to the back side of the display portion, the orthographic projections of the insulating layer and the conductive layer on the reference surface are offset from the orthographic projections of the cover plate on the reference surface.

[0010] In some embodiments, the cover plate is a flat cover plate.

[0011] In some embodiments, the display module further includes a cover plate disposed on the light-emitting side of the display panel; when the circuit board connection portion is folded to the back side of the display portion, the orthographic projection of the bent portion on the reference surface is located within the orthographic projection range of the cover plate on the reference surface; the reference surface is parallel to the display surface of the display panel. When the circuit board connection portion is not folded to the back side of the display portion, the orthographic projection of the electrostatic protection layer on the reference surface partially overlaps with the orthographic projection of the cover plate on the reference surface.

[0012] In some embodiments, the electrostatic discharge protection layer includes an insulating layer and a conductive layer stacked and sequentially located away from the display panel. Along a direction from one end of the protection layer away from the display portion to one end closer to the display portion, the length of the insulating layer is greater than the length of the conductive layer. And when the circuit board connection portion is not folded to the back side of the display portion, the orthographic projection of the insulating layer on the reference surface partially overlaps with the orthographic projection of the cover plate on the reference surface.

[0013] In some embodiments, along the direction from one end of the protective layer away from the display portion to one end closer to the display portion, the length of the portion of the protective layer covered by the insulating layer is greater than or equal to half the length of the protective layer.

[0014] In some embodiments, when the circuit board connection portion is not folded to the back side of the display portion, the orthographic projection of the conductive layer on the reference surface is offset from the orthographic projection of the cover plate on the reference surface.

[0015] In some embodiments, the cover plate is a flat cover plate; or, in the cover plate, at least the edge portion corresponding to the bend is a curved surface.

[0016] In some embodiments, the display module further includes a chip disposed on the circuit board connection portion and located on the same side of the display panel as the protective layer; the electrostatic discharge protection layer covers the chip.

[0017] In some embodiments, a gap exists between the protective layer and the chip, and a portion of the electrostatic discharge protection layer extends within the gap.

[0018] In some embodiments, the display module further includes a flexible circuit board. The flexible circuit board is disposed on the side of the circuit board connection portion away from the bent portion and is electrically connected to the circuit board connection portion; the electrostatic discharge protection layer also covers a portion of the flexible circuit board.

[0019] In some embodiments, the display module further includes a touch function layer and a polarizer. The touch function layer is disposed on the light-emitting side of the display panel, and the orthographic projection of the touch function layer on the display panel overlaps with the display portion; the polarizer is disposed on the side of the touch function layer away from the display panel.

[0020] Secondly, a display device is provided. This display device includes a display module as described in any of the above embodiments.

[0021] The display module and display device provided in this disclosure have the following beneficial effects:

[0022] In the display module provided by this disclosure, the electrostatic discharge (ESD) protection layer covers the circuit board connection portion and at least part of the protective layer, so that the ESD protection layer can not only provide ESD protection for the circuit board connection portion in the display panel, but also provide ESD protection for at least part of the bending portion covered by the protective layer, thereby making the area covered by the ESD protection layer in the display module larger and the ESD protection performance of the display module better.

[0023] The beneficial effects that the display device provided in this disclosure can achieve are the same as those that the display module provided in the above-mentioned technical solutions can achieve, and will not be repeated here. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in this disclosure, the accompanying drawings used in some embodiments of this disclosure will be briefly described below. Obviously, the drawings described below are only drawings of some embodiments of this disclosure, and those skilled in the art can obtain other drawings based on these drawings. In addition, the drawings described below can be regarded as schematic diagrams and are not intended to limit the actual size of the product, the actual flow of the method, the actual timing of the signals, etc. involved in the embodiments of this disclosure.

[0025] Figure 1 This is a structural diagram of a display module according to some embodiments;

[0026] Figure 2 for Figure 1 The cross-sectional view of the display module shown is along section line N-N'.

[0027] Figure 3 This is a structural diagram of another display module according to some embodiments;

[0028] Figure 4 This is a structural diagram of another display module according to some embodiments;

[0029] Figure 5 This is a structural diagram of another display module according to some embodiments;

[0030] Figure 6 This is a structural diagram of another display module according to some embodiments;

[0031] Figure 7 This is a structural diagram of another display module according to some embodiments;

[0032] Figure 8 This is a structural diagram of another display module according to some embodiments;

[0033] Figure 9 This is a structural diagram of another display module according to some embodiments;

[0034] Figure 10 This is a structural diagram of another display module according to some embodiments;

[0035] Figure 11 This is a structural diagram of another display module according to some embodiments;

[0036] Figure 12 This is a structural diagram of another display module according to some embodiments;

[0037] Figure 13 This is a structural diagram of a display device according to some embodiments. Detailed Implementation

[0038] The technical solutions in some embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments provided in this disclosure are within the scope of protection of this disclosure.

[0039] Unless the context otherwise requires, throughout the specification and claims, the term "comprising" and its other forms, such as the third-person singular "comprising" and the present participle "comprising," are interpreted as open-ended and encompassing, meaning "including, but not limited to." In the description of the specification, terms such as "one embodiment," "some embodiments," "exemplary embodiment," "example," "specific example," or "some examples," etc., are intended to indicate that a particular feature, structure, material, or characteristic associated with that embodiment or example is included in at least one embodiment or example of this disclosure. The illustrative representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics mentioned may be included in any suitable manner in any one or more embodiments or examples.

[0040] Hereinafter, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this disclosure, unless otherwise stated, "a plurality of" means two or more.

[0041] In describing some embodiments, the term "connection" and its derivatives may be used. For example, the term "connection" may be used in describing some embodiments to indicate that two or more components are in direct physical or electrical contact with each other. The embodiments disclosed herein are not necessarily limited to the content of this document.

[0042] In addition, the use of “based on” implies openness and inclusivity, because processes, steps, calculations or other actions “based on” one or more of the stated conditions or values ​​may in practice be based on additional conditions or values ​​beyond those stated.

[0043] As used herein, “about,” “approximately,” or “approximately” includes the stated value and the average value within an acceptable range of deviation from the given value, wherein the acceptable range of deviation is determined by a person skilled in the art taking into account the measurement under discussion and the error associated with the measurement of the given quantity (i.e., the limitations of the measurement system).

[0044] As used herein, “parallel,” “perpendicular,” and “equal” include the described situation and situations that are similar to the described situation, within an acceptable range of deviation, which is determined by those skilled in the art taking into account the measurement under discussion and the error associated with the measurement of a particular quantity (i.e., the limitations of the measurement system). For example, “parallel” includes absolute parallelism and approximate parallelism, where an acceptable range of deviation for approximate parallelism may be, for example, within 5°; “perpendicular” includes absolute perpendicularity and approximate perpendicularity, where an acceptable range of deviation for approximate perpendicularity may also be, for example, within 5°; “equal” includes absolute equality and approximate equality, where an acceptable range of deviation for approximate equality may be, for example, a difference between the two equals being less than or equal to 5% of either one.

[0045] This document describes exemplary embodiments with reference to cross-sectional views and / or plan views, which are idealized exemplary drawings. In the drawings, the thickness of layers and regions is enlarged for clarity. Therefore, variations in shape relative to the drawings are contemplated due to, for example, manufacturing techniques and / or tolerances. Thus, exemplary embodiments should not be construed as limited to the shapes of the regions shown herein, but rather include shape deviations due to, for example, manufacturing processes. For example, etched regions shown as rectangular would typically have curved features. Therefore, the regions shown in the drawings are schematic in nature, and their shapes are not intended to show the actual shapes of the regions of the device, nor are they intended to limit the scope of the exemplary embodiments.

[0046] like Figure 1 and Figure 2 As shown, some embodiments of this disclosure disclose a display module 10. The display module 10 may include a display panel 1, a protective layer 2, and an electrostatic discharge protection layer 3.

[0047] The display panel 1 may include a display section 11, a bent section 12 connected to the display section 11, and a circuit board connection section 13 located on the side of the bent section 12 away from the display section 11. The bent section 12 may be bent toward the back side A1 of the display section 11, so that the circuit board connection section 13 is folded to the back side A1 of the display section 11.

[0048] The protective layer 2 is located on the side of the display panel 1 used for electrical connection chips, and at least covers the bent portion 12.

[0049] The electrostatic discharge protection layer 3 and the protective layer 2 are located on the same side of the display panel 1. The electrostatic discharge protection layer 3 covers the circuit board connection portion 13 and at least part of the protective layer 2.

[0050] For example, such as Figure 1As shown, the orthographic projection of the display unit 11 can be approximately circular. Here, "approximately circular" means that the shape of the orthographic projection of the display unit 11 is generally circular, but it is not limited to a standard circle. That is, "circular" here includes not only the basic circular shape, but also shapes resembling circles, taking into account manufacturing processes.

[0051] For example, the orthographic projection of the display unit 11 can also be approximately rectangular. Here, "approximately rectangular" means that the shape of the orthographic projection of the display unit 11 is generally rectangular, but it is not limited to a standard rectangle. That is, "rectangular" here includes not only the shape of a basic rectangle, but also shapes similar to rectangles, such as rounded rectangles, taking into account manufacturing conditions.

[0052] The bending portion 12 can be bent toward the back side A1 of the display portion 11, which allows the circuit board connection portion 13 to be folded to the back side A1 of the display portion 11. This makes the bezel width of the display device using the display module 10 smaller, which is beneficial for achieving the narrow bezel design of the display device.

[0053] For example, the material of the protective layer 2 may be a flexible material, such as a UV-curable adhesive.

[0054] like Figure 1 and Figure 2 As shown, "the protective layer 2 at least covers the bent portion 12" can mean that while covering the bent portion 12, the protective layer 2 also covers part of the display portion 11 near the edge of the bent portion 12, and / or the circuit board connection portion 13 near the edge of the bent portion 12. Alternatively, "the protective layer 2 at least covers part of the bent portion 12" can also mean that the protective layer 2 only covers the bent portion 12.

[0055] Therefore, by covering the bent portion 12 with the protective layer 2, when the bent portion 12 is bent so that the circuit board connection portion 13 is folded to the back side of the display portion 11, the position of the stress center layer of the bent portion 12 of the display panel 1 during the bending process can be changed, thus avoiding damage to the display panel 1.

[0056] Based on this, one end of the protective layer 2 extends to the display portion 11 of the display panel 1, and the other end extends to the circuit board connection portion 13 of the display panel 1. This can also reduce the risk of cracks or breakage at the junction between the display portion 11 and the bending portion 12, and at the junction between the bending portion 12 and the circuit board connection portion 13 of the display panel 1.

[0057] For example, the electrostatic discharge (ESD) shielding layer 3 can be a single-layer film structure or a multilayer film stacked structure. The material of the ESD shielding layer 3 can be an insulating material and / or a conductive material. For example, the ESD shielding layer 3 can be a single-layer film structure made of an insulating material; or it can be a multilayer film stacked structure, wherein at least one film is made of an insulating material and at least one film is made of a conductive material.

[0058] like Figure 1 and Figure 2 As shown, "the electrostatic discharge protection layer 3 covers at least a portion of the protective layer 2" can mean that the electrostatic discharge protection layer 3 covers the portion of the protective layer 2 near the circuit board connection portion 13. Alternatively, "the electrostatic discharge protection layer 3 covers at least a portion of the protective layer 2" can also mean that the electrostatic discharge protection layer 3 covers the entire protective layer 2.

[0059] Thus, the electrostatic protection layer 3 covers the circuit board connection portion 13 and at least part of the protective layer 2, so that the electrostatic protection layer 3 can not only provide electrostatic protection for the circuit board connection portion 13 in the display panel 1, but also provide electrostatic protection for at least part of the area of ​​the bending portion 12 covered by the protective layer 2, so that the area covered by the electrostatic protection layer 3 in the display module 10 is large and the electrostatic protection performance of the display module 10 is better.

[0060] In some embodiments, such as Figure 1 and Figure 2 As shown, of the two opposite ends of the electrostatic protective layer 3 along the first direction X, the first end 301 extends to the side of the protective layer 2 away from the display panel 1, and the second end 302 extends to the side of the circuit board connection portion 13 away from the display portion 11. Here, "first direction X" refers to the direction parallel to the display panel 1 and perpendicular to the boundary line between the circuit board connection portion 13 and the bending portion 12.

[0061] With this configuration, the electrostatic protection layer 3 can cover not only the circuit board connection part 13 of the display panel 1, but also the part of the display panel 1 covered by the protective layer 2. This results in a larger area of ​​the display panel 1 covered by the electrostatic protection layer 3, better electrostatic protection performance of the display module 10, higher safety of the display module 10, and better display stability.

[0062] In some embodiments, such as Figure 3 and Figure 4 As shown, the display module 10 also includes a cover plate 4 disposed on the light-emitting side A2 of the display panel 1.

[0063] Among them, the light-emitting side A2 refers to the side of the display panel 1 used to emit light, which is the light that the display panel 1 uses to display images.

[0064] For example, cover plate 4 can be a glass cover plate. Alternatively, cover plate 4 can be a flexible cover plate.

[0065] For example, such as Figure 4 As shown, cover plate 4 is a flat cover plate. Alternatively, as exemplified, such as... Figure 6 As shown, in the cover plate 4, at least the edge portion corresponding to the bend 12 is a curved surface.

[0066] like Figure 6 As shown, "at least the edge portion of the cover plate 4 corresponding to the bend 12 is curved" can mean that the middle portion of the cover plate 4 corresponding to the display portion 11 is flat, and the edge portion of the cover plate 4 corresponding to the bend 12 is curved. Alternatively, the cover plate 4 as a whole can be curved.

[0067] Based on this, in some embodiments, such as Figure 3 As shown, when the circuit board connection portion 13 is folded to the back side A1 of the display portion 11, the orthographic projection of the bent portion 12 on the reference surface S is within the orthographic projection range of the cover plate 4 on the reference surface S. The reference surface S is parallel to the display surface 14 of the display panel 1.

[0068] With this arrangement, on the one hand, the cover plate 4 can completely cover the bent display panel 1, and the cover plate 4 can better protect the bent display panel 1. On the other hand, it can make the bezel width of the display device using this display module 10 smaller, which is beneficial to realizing the narrow bezel design of the display device.

[0069] In addition, such as Figure 4 As shown, when the circuit board connection portion 13 is not folded to the back side A1 of the display portion 11, the orthographic projection of the electrostatic protective layer 3 on the reference surface S and the orthographic projection of the cover plate 4 on the reference surface S are offset from each other.

[0070] With this configuration, since the electrostatic protection layer 3 at least partially covers the protective layer 2, the overlap area between the orthographic projection of the electrostatic protection layer 3 on the display panel 1 and the orthographic projection of the protective layer 2 on the display panel 1 is small. The electrostatic protection layer 3 has a smaller impact on the stress center layer of the bent portion 12 when it is bent, thereby ensuring the bending performance of the display panel 1 while improving the electrostatic protection capability of the display module 10.

[0071] In one possible design, such as Figure 5 As shown, the electrostatic protection layer 3 includes an insulating layer 31 and a conductive layer 32 stacked and arranged sequentially away from the display panel 1. The insulating layer 31 and the conductive layer 32 substantially overlap, and when the circuit board connection portion 13 is not folded to the back side of the display portion 11, the orthographic projections of the insulating layer 31 and the conductive layer 32 on the reference surface S are both offset from the orthographic projections of the cover plate 4 on the reference surface S.

[0072] For example, the material of the insulating layer 31 may include polyimide (PI) or polyethylene terephthalate (PET) plastic.

[0073] For example, the thickness of the insulating layer 31 can be 5μm to 15μm, such as 5μm, 6μm, 8μm, 10μm, 12μm, 14μm, 15μm, etc.

[0074] For example, the material of the conductive layer 32 may include copper or aluminum.

[0075] The electrostatic discharge (ESD) protection layer 3 includes a conductive layer 32, which allows static electricity generated in the display module 10 to be discharged, thus achieving ESD protection. The insulating layer 31 is used to isolate the display panel 1 from the conductive layer 32, preventing short circuits between the multiple conductive lines on the display panel 1 due to the conductive layer 32, and ensuring the normal display of the display panel 1.

[0076] Based on the above embodiments, such as Figures 3 to 5 As shown, cover plate 4 can be a flat cover plate.

[0077] In other embodiments, such as Figure 6 As shown, for the display module 10, when the circuit board connection portion 13 is folded to the back side A1 of the display portion 11, the orthographic projection of the bent portion 12 on the reference surface S is within the orthographic projection range of the cover plate 4 on the reference surface S. The reference surface S is parallel to the display surface 14 of the display panel 1.

[0078] In this way, on the one hand, the cover plate 4 can completely cover the bent display panel 1, and the cover plate 4 can better protect the bent display panel 1. On the other hand, it can make the bezel width of the display device using the display module 10 smaller, which is conducive to realizing the narrow bezel design of the display device.

[0079] In addition, such as Figure 7 and Figure 8 As shown, when the circuit board connection portion 13 is not folded to the back side A1 of the display portion 11, the orthographic projection of the electrostatic shielding layer 3 on the reference surface S partially overlaps with the orthographic projection of the cover plate 4 on the reference surface S.

[0080] In this way, the area covered by the electrostatic protection layer 3 in the protective layer 2 is larger, the electrostatic protection capability of the display module 10 is better, and the stability of the display module 10 in use is better.

[0081] See Figure 8When the edge of the bend 12 of the cover plate 4 corresponding to the display panel 1 is curved, when the circuit board connection part 13 is not folded to the back side A1 of the display part 11, the electrostatic protective layer 3 can be located between the cover plate 4 and the protective layer 2, so that the cover plate 4 and the protective layer 2 are not easily bonded. This makes it less likely that the cover plate 4 and the protective layer 2 will be pulled during the bending process of the bend 12, and less likely that some protective layer will remain on the cover plate 4. This helps to ensure the uniformity of the protective layer 2 and prevents the wiring on the bend 12 from being broken due to bending stress.

[0082] In one possible design, such as Figure 8 and Figure 9 As shown, the electrostatic discharge (ESD) protection layer 3 includes an insulating layer 31 and a conductive layer 32 stacked and sequentially located away from the display panel 1. Along the direction from the end of the protective layer 2 away from the display section 11 to the end closer to the display section 11, the length d1 of the insulating layer 31 is greater than the length d2 of the conductive layer 32. Furthermore, when the circuit board connection portion 13 is not folded to the back side A1 of the display section 11, the orthographic projection of the insulating layer 31 on the reference surface S partially overlaps with the orthographic projection of the cover plate 4 on the reference surface S.

[0083] Thus, when the edge of the bend 12 corresponding to the cover plate 4 is curved, on the one hand, the electrostatic protective layer 3 can block the protective layer 2 and the cover plate 4, preventing the cover plate 4 from sticking to the protective layer 2. This makes it less likely for the cover plate 4 and the protective layer 2 to be pulled apart during the bending process of the bend 12, and less likely for any protective layer residue to remain on the cover plate 4, affecting the display effect. This helps to ensure the uniformity of the protective layer 2, protect the display panel from damage, and prevent the traces on the bend 12 from breaking due to bending stress. On the other hand, it also allows the thickness of the portion of the display module 10 corresponding to the bend 12 of the display panel 1 to be thinner, making it easier to bend the circuit board connection portion 13 of the display panel 1 to the back side A1 of the display portion 11, achieving a narrow bezel design.

[0084] In one possible design, see Figure 10 Along the direction from the end of the protective layer 2 away from the display part 11 to the end closer to the display part 11, the length d3 of the portion of the protective layer 2 covered by the insulating layer 31 is greater than or equal to half the length d4 of the protective layer 2.

[0085] This design allows for a larger length d in the portion of the protective layer 2 covered by the insulating layer 31. When the edge of the corresponding bend 12 in the cover plate 4 is curved, the insulating layer 31 can better isolate the cover plate 4 and the protective layer 2, preventing them from sticking together. This reduces the likelihood of pulling between the cover plate 4 and the protective layer 2 during the bending process of the bend 12, and minimizes the amount of protective layer residue on the cover plate 4. When the display module 10 displays an image, the light from the image is less likely to be blocked by the residual protective layer on the cover plate 4, thus ensuring the display quality of the display panel. Simultaneously, it helps maintain the uniformity of the protective layer 2, preventing the traces on the bend 12 from breaking due to bending stress.

[0086] In one possible design, such as Figure 8 and Figure 9 As shown, when the circuit board connection portion 13 is not folded to the back side A1 of the display portion 11, the orthographic projection of the conductive layer 11 on the reference surface S is offset from the orthographic projection of the cover plate 4 on the reference surface S.

[0087] By setting it this way, the area covered by the conductive layer 11 in the protective layer 2 is smaller, thereby avoiding the large thickness of the part corresponding to the bending part 12 of the display panel 1 in the display module 10. The circuit board connection part 13 of the display panel 1 is not easily bent to the back side A1 of the display part 11, which is conducive to realizing the narrow bezel design of the display device using the display module 10.

[0088] Based on the above embodiments, such as Figure 7 and Figure 9 As shown, cover plate 4 is a flat cover plate. Or, as... Figure 6 and Figure 8 As shown, at least the edge portion corresponding to the bend 12 in the cover plate 4 is a curved surface.

[0089] In some embodiments, such as Figure 10 As shown, the display module 10 also includes a chip 5. The chip 5 is disposed on the circuit board connection portion 13 and is located on the same side of the display panel 1 as the protective layer 2. The electrostatic discharge protection layer 3 covers the chip 5.

[0090] For example, chip 5 can be used to control the display screen 1. For instance, chip 5 can be a source driver chip (Source IC).

[0091] The electrostatic protection layer 3 covers the chip 5, which makes it less likely that the static electricity generated in the display module 10 will interfere with the chip 5 during the use of the display module 10, thus protecting the chip 5 and ensuring the normal display of the display module.

[0092] In some embodiments, such as Figure 10As shown, there is also a gap 51 between the protective layer 2 and the chip 5, and part of the electrostatic protection layer 3 extends in the gap 51.

[0093] For example, the gap 51 between the protective layer 2 and the chip 5 can expose the electrical connection lines connecting the chip 5 and the display panel 1.

[0094] In this way, part of the electrostatic protection layer 3 extends in the gap 51, which can cover the electrical connection lines of the connection chip 5 and the display panel 1 exposed in the gap 51, thereby preventing the electrostatic discharge generated during the use of the display module 10 from affecting the signal transmitted in the electrical connection lines and improving the stability of the display module 10.

[0095] In some embodiments, such as Figure 11 As shown, the display module 10 also includes a flexible circuit board 6. The flexible circuit board 6 is disposed on the side of the circuit board connection portion 13 away from the bending portion 12 and is electrically connected to the circuit board connection portion. The electrostatic protective layer 3 also covers a portion of the flexible circuit board 6.

[0096] For example, the flexible circuit board 6 can be used to connect the display panel 1 and the printed circuit board assembly (PCBA) in the display device.

[0097] Therefore, the electrostatic protection layer 3 covers part of the flexible circuit board 6, which can prevent the static electricity generated in the display module 10 from affecting the flexible circuit board 6, improve the electrostatic protection capability of the display module 10, and improve the stability of the display module 10 in use.

[0098] In some embodiments, such as Figure 10 As shown, the display module 10 also includes a touch function layer 7 and a polarizer 8.

[0099] The touch function layer 7 is disposed on the light-emitting side A2 of the display panel 1, and the orthographic projection of the touch function layer 7 on the display panel 1 overlaps with the display section 11. By providing the touch function layer 7, the display module 10 can have touch functionality, which is beneficial to realizing the multi-functionality of the display device using the display module 10.

[0100] The polarizer 8 is disposed on the side of the touch function layer 7 away from the display panel 1. In this way, the polarizer 8 can reduce the light reflectivity of the light-emitting surface of the display module and improve the display contrast of the display device.

[0101] In some embodiments, such as Figure 12As shown, the display module 10 also includes a first adhesive layer 91 and a second adhesive layer 92. The first adhesive layer 91 is located between the display section 11 and the touch function layer 6, and is used to bond the display section 11 and the touch function layer 7 together, preventing misalignment between the touch function layer and the display panel during use of the display module, which would affect the implementation of the touch function. The second adhesive layer 92 is located between the polarizer 8 and the cover plate 4, and is used to achieve bonding between the display panel 1 and the cover plate 4.

[0102] In some embodiments, such as Figure 12 As shown, the display module 10 also includes a support layer 93 disposed on the back side of the display section 11. The support layer 93 is used to support the display section 11 and the circuit board connection section 13 after the circuit board connection section 13 is folded to the back side of the display section 11.

[0103] In some embodiments, such as Figure 12 As shown, the display module 10 also includes a back film 94, which is located on the back side of the display panel 1. A portion of the back film 94 overlaps with the display section 11, and another portion overlaps with the circuit board connection section 13. That is, the back side of the bending section 12 is not provided with a back film 94, so that the display section 11 and the circuit board connection section 13 can be supported, and the bending performance of the bending section 12 can be guaranteed.

[0104] like Figure 13 As shown, some embodiments of this disclosure provide a display device 100, including the display module 10 described in any of the above embodiments. The display device 100 can be any component with display function, such as a television, digital camera, mobile phone, watch, tablet computer, laptop computer, or navigator.

[0105] The beneficial effects that the display device provided by the present invention can achieve are the same as those that the display module provided by the above-mentioned technical solutions can achieve, and will not be repeated here.

[0106] The above description is merely a specific embodiment of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A display module, characterized in that, include: A display panel includes a display section, a bent section connected to the display section, and a circuit board connection section located on the side of the bent section away from the display section; the bent section can be bent toward the back side of the display section so that the circuit board connection section is folded to the back side of the display section. A protective layer is located on the side of the display panel used for electrical connection chips, and at least covers the bent portion; An electrostatic discharge (ESD) shielding layer is located on the same side of the display panel as the protective layer, and the ESD shielding layer covers the circuit board connection portion and at least a portion of the protective layer; The display module also includes a cover plate disposed on the light-emitting side of the display panel; When the circuit board connection portion is not folded to the back of the display portion, the orthographic projection of the electrostatic protective layer on the reference surface is offset from the orthographic projection of the cover plate on the reference surface; or, The electrostatic protection layer includes an insulating layer and a conductive layer stacked and sequentially away from the display panel. When the circuit board connection portion is not folded to the back side of the display portion, the orthographic projection of the insulating layer on the reference surface partially overlaps with the orthographic projection of the cover plate on the reference surface, and the orthographic projection of the conductive layer on the reference surface is offset from the orthographic projection of the cover plate on the reference surface. The reference surface is parallel to the display surface of the display panel.

2. The display module according to claim 1, characterized in that, Of the two opposite ends of the electrostatic protective layer along the first direction, the first end extends to the side of the protective layer away from the display panel, and the second end extends to the side of the circuit board connection portion away from the display portion.

3. The display module according to claim 2, characterized in that, When the circuit board connection portion is folded to the back of the display portion, the orthographic projection of the bent portion on the reference surface is within the orthographic projection range of the cover plate on the reference surface.

4. The display module according to claim 3, characterized in that, The electrostatic protection layer includes an insulating layer and a conductive layer stacked and sequentially located away from the display panel. The insulating layer and the conductive layer substantially overlap, and when the circuit board connection portion is not folded to the back side of the display portion, the orthographic projections of the insulating layer and the conductive layer on the reference surface are offset from the orthographic projections of the cover plate on the reference surface.

5. The display module according to claim 3, characterized in that, The cover plate is a flat cover plate.

6. The display module according to claim 2, characterized in that, The display module further includes a cover plate disposed on the light-emitting side of the display panel; when the circuit board connection portion is folded to the back side of the display portion, the orthographic projection of the bent portion on the reference surface is located within the orthographic projection range of the cover plate on the reference surface; the reference surface is parallel to the display surface of the display panel; When the circuit board connection portion is not folded to the back of the display portion, the orthographic projection of the electrostatic protective layer on the reference surface overlaps with the orthographic projection of the cover plate on the reference surface.

7. The display module according to claim 6, characterized in that, Along the direction from the end of the protective layer away from the display portion to the end closer to the display portion, the length of the insulating layer is greater than the length of the conductive layer.

8. The display module according to claim 7, characterized in that, Along the direction from the end of the protective layer away from the display portion to the end closer to the display portion, the length of the portion of the protective layer covered by the insulating layer is greater than or equal to half the length of the protective layer.

9. The display module according to claim 6, characterized in that, The cover plate is a flat cover plate; or, at least the edge portion corresponding to the bend is a curved surface in the cover plate.

10. The display module according to any one of claims 1 to 9, characterized in that, Also includes: The chip is disposed on the circuit board connection portion and is located on the same side of the display panel as the protective layer; the electrostatic protection layer covers the chip.

11. The display module according to claim 10, characterized in that, There is a gap between the protective layer and the chip, and a portion of the electrostatic discharge protection layer extends into the gap.

12. The display module according to any one of claims 1 to 9, characterized in that, Also includes: A flexible circuit board is disposed on the side of the circuit board connection portion away from the bending portion and is electrically connected to the circuit board connection portion; the electrostatic protection layer also covers a portion of the flexible circuit board.

13. The display module according to any one of claims 1 to 9, characterized in that, Also includes: A touch function layer is disposed on the light-emitting side of the display panel, and the orthographic projection of the touch function layer on the display panel overlaps with the display section; A polarizer is disposed on the side of the touch function layer away from the display panel.

14. A display device, characterized in that, Includes the display module as described in any one of claims 1 to 13.

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