Display module and display device

Abstract

The embodiment of the invention provides a display module and a display device, is applied to the technical field of display, and can improve the impact resistance and extrusion resistance of the display module, improve the strength of the display module and optimize creases. The display module comprises a display panel and a protective layer. The display panel comprises a display surface and a non-display surface which are oppositely arranged; the protective layer comprises a first protective layer and a second protective layer, the first protective layer is arranged on the display surface, and the second protective layer is arranged on the non-display surface; the material of the protective layer includes at least one of glass, sapphire and quartz.

Description

Technical Field

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

[0002] With the continuous development of the display technology industry, display products have been widely researched and commercialized.

[0003] At present, the size of display products is gradually increasing, and the demand for touch and handwriting scenarios is increasing. Under this trend, display products need to have higher impact resistance and extrusion resistance. Summary of the invention

[0004] The technical problem solved by some embodiments of the present disclosure is: how to improve the impact resistance and extrusion resistance of the display module, enhance the strength of the display module, and optimize the crease.

[0005] On the one hand, some embodiments of the present disclosure provide a display module, which includes a display panel and a protective layer; the display panel includes a display surface and a non-display surface arranged opposite to each other; the protective layer includes a first protective layer and a second protective layer, the first protective layer is arranged on the display surface, and the second protective layer is arranged on the non-display surface; the material of the protective layer includes at least one of glass, sapphire and quartz.

[0006] The beneficial effects of some embodiments of the present disclosure are as follows: a first protective layer is provided on the display surface of the display panel, and a second protective layer is provided on the non-display surface of the display panel, the first protective layer and the second protective layer form double-sided protection on both sides of the display panel, the materials of the first protective layer and the second protective layer are both rigid materials with high strength, therefore, the first protective layer and the second protective layer can improve the impact resistance and extrusion resistance of the display panel, that is, can improve the impact resistance and extrusion resistance of the display module, and enhance the strength of the display module; at the same time, the materials of the first protective layer and the second protective layer have high mechanical properties and rebound recovery properties, after the display module is folded multiple times, the first protective layer and the second protective layer can both return to their original state, thereby avoiding the generation of creases and optimizing creases. In addition, the first protective layer and the second protective layer can improve the flatness of the display module on both sides of the display panel.

[0007] In some embodiments, the display module includes at least one folding area and multiple non-folding areas, a folding area is located between two adjacent non-folding areas; the thickness of the first protective layer located in the folding area is consistent with the thickness of the part located in the non-folding area; and / or the thickness of the second protective layer located in the folding area is consistent with the thickness of the part located in the non-folding area.

[0008] In some embodiments, the display module includes at least one folding area and multiple non-folding areas, and a folding area is located between two adjacent non-folding areas; the second protective layer includes a first part located in the folding area and a second part located in the non-folding area, and the thickness of the first part is less than the thickness of the second part.

[0009] In some embodiments, the first portion includes a first sub-portion and a second sub-portion, the second sub-portion connects the first sub-portion and the second portion; the thickness of the second sub-portion is greater than the thickness of the first sub-portion and less than the thickness of the second portion.

[0010] In some embodiments, the display module also includes an organic protective layer, which is located on a side of the second protective layer away from the display panel and in contact with the second protective layer; the organic protective layer includes a third part located in the folding area and a fourth part located in the non-folding area, and the sum of the thickness of the third part and the thickness of the first part is equal to the sum of the thickness of the fourth part and the thickness of the second part.

[0011] In some embodiments, the material of the organic protection layer includes at least one of polyimide and polyurethane.

[0012] In some embodiments, the first protective layer contacts the display panel; and / or the second protective layer contacts the display panel.

[0013] In some embodiments, the display module further includes a cover plate and a support layer; the cover plate is disposed on a side of the first protective layer away from the display panel; and the support layer is disposed on a side of the second protective layer away from the display panel.

[0014] In some embodiments, the support layer includes at least one opening, and when the display module includes at least one folding area, the opening is located in the folding area.

[0015] On the other hand, the present disclosure provides a display device, comprising the display module and a driving chip as described above, wherein the driving chip is connected to the display module. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the present disclosure, the following briefly introduces the drawings required to be used in some embodiments of the present disclosure. Obviously, the drawings described below are only drawings of some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can also be obtained based on these drawings. In addition, the drawings described below can be regarded as schematic diagrams, and are not limitations on the actual size of the product involved in the embodiments of the present disclosure, the actual process of the method, the actual timing of the signal, etc.

[0017] Figure 1 A cross-sectional view of a display module provided for some embodiments of the present disclosure;

[0018] Figure 2A cross-sectional view of another display module provided for some embodiments of the present disclosure;

[0019] Figure 3 A cross-sectional view of another display module provided for some embodiments of the present disclosure;

[0020] Figure 4 A cross-sectional view of a display module in a folded state provided for some embodiments of the present disclosure;

[0021] Figure 5 A cross-sectional view of another display module provided for some embodiments of the present disclosure;

[0022] Figure 6 A cross-sectional view of another display module provided for some embodiments of the present disclosure;

[0023] Figure 7 A structural diagram of a display device provided for some embodiments of the present disclosure. DETAILED DESCRIPTION

[0024] The following will be combined with the accompanying drawings to clearly and completely describe the technical solutions in some embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments provided by the present disclosure, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the present disclosure.

[0025] Unless the context requires otherwise, throughout the specification and claims, the term "including" is to be interpreted as an open, inclusive meaning, that is, "including, but not limited to". In the description of the specification, the terms "one embodiment", "some embodiments", "exemplary embodiments", "example", "specific example" or "some examples" and the like are intended to indicate that specific features, structures, materials or characteristics associated with the embodiment or example are included in at least one embodiment or example of the present disclosure. The schematic representation of the above terms does not necessarily refer to the same embodiment or example. In addition, the specific features, structures, materials or characteristics may be included in any one or more embodiments or examples in any appropriate manner.

[0026] In the following, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present disclosure, unless otherwise specified, "plurality" means two or more.

[0027] It will be understood that when a layer or an element is referred to as being on another layer or substrate, it can be directly on the other layer or substrate, or intervening layers may be present between the layer or element and the other layer or substrate.

[0028] Exemplary embodiments are described herein with reference to cross-sectional views and / or plan views that are idealized exemplary drawings. In the drawings, the thickness of the layers and the area of ​​the regions are exaggerated for clarity. Therefore, variations in the shapes relative to the drawings due to, for example, manufacturing techniques and / or tolerances are conceivable. Therefore, the exemplary embodiments should not be interpreted as being limited to the shapes of the regions shown herein, but include shape deviations due to, for example, manufacturing. For example, an etched region shown as a rectangle will typically have curved features. Therefore, the regions shown in the drawings are schematic in nature, and their shapes are not intended to illustrate the actual shapes of the regions of the device, and are not intended to limit the scope of the exemplary embodiments.

[0029] At present, most display products have a touch function, that is, the display of the display product can be controlled by touching or sliding the finger. Therefore, the display product needs to have a high impact resistance and compression resistance to avoid damage to the display product due to insufficient impact resistance and compression resistance when the finger touches or slides.

[0030] At the same time, foldable display products are becoming more and more popular. In the process of folding the display product multiple times, creases are likely to appear at the folded positions, and the creases are difficult to eliminate, which greatly affects the quality of the display product and the user experience.

[0031] For example, Figure 1 As shown, the display product (eg, a foldable display product) includes a display module 10 .

[0032] In some embodiments, Figure 1 As shown, the display module 10 includes a support layer 1, an organic back film layer 2, a display panel 3 and a cover plate 4 stacked from bottom to top, wherein the support layer 1 and the organic back film layer 2 are arranged on the non-display surface b side of the display panel 3, and the cover plate 4 is arranged on the display surface a side of the display panel 3. Among them, the support layer 1 is used to provide support for the display panel 3; the organic back film layer 2 can be used to provide support for the display panel 3 and can also be used to protect the display panel 3 to prevent the display panel 3 from being scratched or damaged; the display panel 3 is used to display images and is a key component of the display product. The display panel 3 can be, for example, a flexible display panel that can be folded; the cover plate 4 is used to protect the display panel 3.

[0033] For example, after the display product including the above-mentioned display module 10 is folded multiple times, it is difficult to restore the original shape at the folded position due to the poor mechanical properties and poor resilience of the organic back film layer 2 supporting the display panel 3. Creases are easily formed, which causes creases to appear on the display product, greatly affecting the quality of the display product and greatly affecting the user experience.

[0034] In some embodiments, Figure 2 and Figure 3 As shown, an embodiment of the present disclosure provides a display module 10, which includes a display panel 3 and a protective layer 5; the display panel 3 includes a display surface a and a non-display surface b that are relatively arranged; the protective layer 5 includes a first protective layer 51 and a second protective layer 52, the first protective layer 51 is arranged on the display surface a, and the second protective layer 52 is arranged on the non-display surface b; the material of the protective layer 5 includes at least one of glass, sapphire and quartz.

[0035] Exemplarily, the display module 10 is a display assembly that assembles a display device, a connector, an integrated circuit, a control drive circuit, a circuit board, and structural components.

[0036] In some embodiments, Figure 2 and Figure 3 As shown, the display module 10 includes a display panel 3, which can be used to display images; from the perspective of the light-emitting type of the display panel 3, the display panel 3 can be an active light-emitting display panel, such as an organic light-emitting diode (OLED) display panel, a quantum dot light-emitting diode (QLED) display panel, or a micro light-emitting diode (MLED) display panel; the display panel 3 can also be a passive light-emitting display panel, such as a liquid crystal display (LCD) display panel, etc. The present disclosure is not limited here.

[0037] For example, Figure 2 and Figure 3 As shown, the display panel 3 includes a display surface a and a non-display surface b that are arranged opposite to each other; the display surface a of the display panel 3 is a side from which light is emitted, and the non-display surface b of the display panel 3 is a side from which no light is emitted.

[0038] In some embodiments, Figure 2 and Figure 3As shown, the display module 10 includes a protective layer 5 , which includes a first protective layer 51 and a second protective layer 52 . The first protective layer 51 is arranged on the display surface a, and the second protective layer 52 is arranged on the non-display surface b; that is, protective layers 5 are arranged on both sides of the display panel 3 .

[0039] Exemplarily, the material of the first protective layer 51 includes one of glass, sapphire and quartz; the material of the second protective layer 52 includes one of glass, sapphire and quartz. Glass, sapphire and quartz are all rigid materials with high mechanical properties, strength and rebound recovery performance.

[0040] Exemplarily, the material of the first protective layer 51 and the material of the second protective layer 52 may be the same or different, which is not limited in the present disclosure.

[0041] For example, Figure 2 and Figure 3 As shown, the second protective layer 52 is used to Figure 1 The organic back film layer 2 shown is replaced, and a first protective layer 51 is set on the display surface a of the display panel 3. The first protective layer 51 and the second protective layer 52 form double-sided protection on both sides of the display panel 3. The materials of the first protective layer 51 and the second protective layer 52 are both rigid materials with high strength. Therefore, the first protective layer 51 and the second protective layer 52 can improve the impact resistance and extrusion resistance of the display panel 3, that is, the impact resistance and extrusion resistance of the display module 10 can be improved, and the strength of the display module 10 can be improved; at the same time, the materials of the first protective layer 51 and the second protective layer 52 have high mechanical properties and rebound recovery properties. After the display module 10 is folded multiple times, the first protective layer 51 and the second protective layer 52 can both return to their original state, thereby avoiding the generation of creases and optimizing creases; and the first protective layer 51 and the second protective layer 52 can improve the flatness of the display module 10.

[0042] In some embodiments, Figure 2 and Figure 3 As shown, and refer to Figure 4 The display module 10 includes at least one folding area N and multiple non-folding areas M, and one folding area N is located between two adjacent non-folding areas M; the ratio of the thickness d of the portion of the protective layer 5 located in the folding area N to the folding radius e of the folding area N is in the range of 0.005 to 0.0625.

[0043] For example, Figure 2 and Figure 3 As shown, the display module 10 may include a folding area N and two non-folding areas M, and the folding area N is located between the two non-folding areas M.

[0044] In some other embodiments, the display module 10 may include two folding areas N and three non-folding areas M, and the two folding areas N are located between two adjacent non-folding areas M, respectively.

[0045] In some other embodiments, the display module 10 may include three folding areas N and four non-folding areas M, and the three folding areas N are respectively located between two adjacent non-folding areas M. The present disclosure is not limited here.

[0046] The following embodiments of the present disclosure are described by taking the display module 10 including one folding area N and two non-folding areas M as an example.

[0047] In some embodiments, in order to improve the reliability of folding the display module 10, so that the display module 10 can be better folded and the reliability and durability of the display module 10 can be improved, the thickness d1 of the first protective layer 51 located in the folding area N and the thickness d2 of the second protective layer 52 located in the folding area N can be set according to the folding radius e of the display module 10.

[0048] For example, the folding radius e refers to the curvature radius of the curved portion of the folding display product in the folded state.

[0049] For example, the size of the folding radius e of the folding display product directly affects the durability and user experience of the folding display product. A smaller folding radius e means that the folding display product bends more when folded, which may affect the durability and service life of the folding display product. A larger folding radius e means that the folding display product bends less when folded and is relatively more durable, but may affect the portability and design aesthetics of the folding display product.

[0050] Exemplarily, the thickness d1 of the first protective layer 51 located in the folding area N and the thickness d2 of the second protective layer 52 located in the folding area N are set within a suitable range, which can improve the folding performance of the display module 10 and the durability of the display module 10, and can avoid the thickness d1 of the first protective layer 51 located in the folding area N and the thickness d2 of the second protective layer 52 located in the folding area N being too thick to affect the folding performance of the display module 10, so that the display module 10 cannot be folded normally.

[0051] At the same time, the first protective layer 51 and the second protective layer 52 can also have better impact resistance and extrusion resistance, and have higher mechanical properties and rebound recovery performance, which can improve the strength of the display module 10 and optimize the creases, and can avoid the thickness d1 of the first protective layer 51 located in the folding area N and the thickness d2 of the second protective layer 52 located in the folding area N being too thin, thereby affecting the impact resistance and extrusion resistance of the display module 10, and can avoid the mechanical properties and rebound recovery performance being reduced due to the thickness d1 of the first protective layer 51 located in the folding area N and the thickness d2 of the second protective layer 52 located in the folding area N being too thin, resulting in creases in the display module 10 after multiple folding.

[0052] Exemplarily, the ratio of the thickness d1 of the first protective layer 51 located in the folding area N or the thickness d2 of the second protective layer 52 located in the folding area N to the folding radius e of the folding area N may be in the range of 0.005 to 0.0625. For example, the ratio of the thickness d of the portion of the protective layer 5 located in the folding area N to the folding radius e of the folding area N may be 0.005, 0.01, 0.015, 0.02, 0.025, 0.03, 0.035, 0.04, 0.045, 0.05, 0.055, 0.06 or 0.0625, etc., which is not limited here. This setting allows the thickness d1 of the first protective layer 51 located in the folding area N and the thickness d2 of the second protective layer 52 located in the folding area N to be set within a suitable range, which can improve the folding performance of the display module 10, improve the durability of the display module 10, and make the display module 10 have better impact resistance and extrusion resistance, and have higher mechanical properties and rebound recovery performance, which can improve the strength of the display module 10 and optimize the crease.

[0053] In some embodiments, Figure 2 As shown, the thickness of the first protective layer 51 located in the folding area N is consistent with the thickness of the part located in the non-folding area M; and / or, the thickness of the second protective layer 52 located in the folding area N is consistent with the thickness of the part located in the non-folding area M.

[0054] For example, Figure 2 As shown, the thickness of the first protective layer 51 in each part can be uniform, that is, the thickness of the first protective layer 51 in the folding area N is consistent with the thickness of the first protective layer 51 in the non-folding area M; the thickness of the second protective layer 52 in each part can be uniform, that is, the thickness of the second protective layer 52 in the folding area N is consistent with the thickness of the second protective layer 52 in the non-folding area M. This arrangement can improve the flatness of the display module 10 and achieve better protection for the display panel 3.

[0055] In some embodiments, the thickness of the first protective layer 51 may range from 0.01 mm to 0.05 mm. For example, the thickness of the first protective layer 51 may be 0.01 mm, 0.02 mm, 0.03 mm, 0.04 mm or 0.05 mm, etc., which is not limited here.

[0056] In some embodiments, the thickness of the second protective layer 52 may range from 0.01 mm to 0.05 mm. For example, the thickness of the second protective layer 52 may be 0.01 mm, 0.02 mm, 0.03 mm, 0.04 mm or 0.05 mm, etc., which is not limited here.

[0057] Exemplarily, the thickness of the first protective layer 51 and the thickness of the second protective layer 52 may be the same or different, which is not limited in the present disclosure.

[0058] In some embodiments, the folding radius e of the display module 10 can range from 0.8 mm to 2 mm, for example. The folding radius e of the display module 10 can be 0.8 mm, 0.9 mm, 1 mm, 1.1 mm, 1.2 mm, 1.3 mm, 1.4 mm, 1.5 mm, 1.6 mm, 1.7 mm, 1.8 mm, 1.9 mm or 2 mm, etc., and there is no limitation thereto.

[0059] Exemplarily, when the folding radius e of the display module 10 is in the range of 0.8 mm to 2 mm, the thickness of the first protective layer 51 and the second protective layer 52 is in the range of 0.01 mm to 0.05 mm, which can make the first protective layer 51 and the second protective layer 52 have better impact resistance and extrusion resistance, meet the reliability of bending, and have better mechanical properties and rebound recovery performance, thereby improving the folding performance of the display module 10, improving the durability of the display module 10, and making the display module 10 have better impact resistance and extrusion resistance, and higher mechanical properties and rebound recovery performance, which can further improve the strength of the display module 10 and optimize the crease.

[0060] In some embodiments, Figure 3 As shown, the second protection layer 52 includes a first portion 52 - 1 located in the folding area N and a second portion 52 - 2 located in the non-folding area M, and the thickness of the first portion 52 - 1 is smaller than the thickness of the second portion 52 - 2 .

[0061] For example, Figure 3 As shown, the thickness of the first protective layer 51 in various parts may be uniform, and the thickness of the first protective layer 51 may range from 0.01 mm to 0.05 mm.

[0062] For example, Figure 3As shown, the thickness of the second protective layer 52 may be inconsistent, for example, the thickness of the first portion 52-1 of the second protective layer 52 may be less than the thickness of the second portion 52-2. That is, relative to the second portion 52-2 of the second protective layer 52, the first portion 52-1 of the second protective layer 52 is thinner, and the thinner first portion 52-1 is located in the folding area N, so that the first portion 52-1 can meet the folding requirements of the display module 10, making the display module 10 easier to fold, and at the same time, the first portion 52-1 of the second protective layer 52 can also have higher mechanical properties and rebound recovery properties, which can improve the folding performance of the display module 10, improve the durability of the display module 10, and optimize the folding line; at the same time, the thicker second portion 52-2 is located in the non-folding area M, further improving the impact resistance and extrusion resistance of the non-folding area M, and improving the strength of the display module 10.

[0063] In some embodiments, Figure 3 As shown, the first portion 52 - 1 includes a first sub-portion 52 - 11 , the thickness of the first sub-portion 52 - 11 ranges from 0.01 mm to 0.05 mm, and / or the thickness of the second portion 52 - 2 ranges from 0.07 mm to 0.1 mm.

[0064] Exemplarily, the thickness of the first sub-portion 52 - 11 may be 0.01 mm, 0.02 mm, 0.03 mm, 0.04 mm, or 0.05 mm, etc., which is not limited here.

[0065] Exemplarily, when the folding radius e of the display module 10 is in the range of 0.8mm to 2mm, the thickness of the first sub-portion 52-11 of the second protective layer 52 is in the range of 0.01mm to 0.05mm, so that the first sub-portion 52-11 of the second protective layer 52 can meet the bending reliability, have better mechanical properties and rebound recovery performance, and can improve the folding performance of the display module 10, improve the durability of the display module 10, and optimize the crease.

[0066] Exemplarily, the thickness of the second portion 52 - 2 may be 0.07 mm, 0.08 mm, 0.09 mm, or 0.1 mm, etc., which is not limited here.

[0067] Exemplarily, the second part 52-2 located in the non-folding area M is thicker, so that the second part 52-2 has better impact resistance and extrusion resistance, which can improve the durability of the display module 10 and the strength of the display module 10.

[0068] In some embodiments, Figure 3As shown, the first portion 52-1 also includes a second sub-portion 52-12, which connects the first sub-portion 52-11 and the second portion 52-2; the thickness of the second sub-portion 52-12 is greater than the thickness of the first sub-portion 52-11, and less than the thickness of the second portion 52-2.

[0069] Exemplarily, the second sub-portion 52-12 can make the first sub-portion 52-11 and the second portion 52-2 transition smoothly at the connection position, avoiding the formation of a sharp right angle at the connection position between the first sub-portion 52-11 and the second portion 52-2, thereby causing stress concentration at the sharp position during folding. The stress generated by the display module 10 when folded can be evenly distributed at the connection position between the first sub-portion 52-11 and the second portion 52-2, avoiding damage to the display module 10 due to stress concentration.

[0070] In some embodiments, Figure 3 As shown, the display module 10 also includes an organic protective layer 6, which is located on the side of the second protective layer 52 away from the display panel 3 and in contact with the second protective layer 52; the organic protective layer 6 includes a third part 6-1 located in the folding area N and a fourth part 6-2 located in the non-folding area M, and the sum of the thickness of the third part 6-1 and the thickness of the first part 52-1 is equal to the sum of the thickness of the fourth part 6-2 and the thickness of the second part 52-2.

[0071] Exemplarily, the organic protective layer 6 is located on the side of the second protective layer 52 away from the display panel 3. Since the thickness of the first part 52-1 of the second protective layer 52 is less than the thickness of the second part 52-2, the organic protective layer 6 can fill the side of the first part 52-1 away from the display panel 3.

[0072] Exemplarily, the sum of the thickness of the third part 6-1 of the folding area N and the thickness of the first part 52-1 of the folding area N is equal to the sum of the thickness of the fourth part 6-2 of the non-folding area M and the thickness of the second part 52-2 of the non-folding area M, that is, the organic protective layer 6 fills the side of the first part 52-1 away from the display panel 3, and in the unfolded state of the display module 10, the surface of the organic protective layer 6 away from the display panel 3 is flat.

[0073] For example, the organic protective layer 6 can be used to protect the second protective layer 52, ensure the feasibility of the lamination process, and enhance the flatness of the display module 10. At the same time, the organic protective layer 6 can further enhance the impact resistance and extrusion resistance of the display module 10 and improve the strength of the display module 10.

[0074] In some embodiments, the thickness of the fourth portion 6-2 ranges from 0.01 mm to 0.03 mm. That is, the thickness of the portion of the organic protective layer 6 located in the non-folding area M is 0.01 mm to 0.03 mm. For example, the thickness of the portion of the organic protective layer 6 located in the non-folding area M may be 0.01 mm, 0.02 mm, or 0.03 mm, etc., which is not limited here. While protecting the second protective layer 52, the thinning requirement of the display module 10 can also be met.

[0075] In some embodiments, the material of the organic protective layer 6 includes at least one of polyimide and polyurethane, both of which are elastic organic materials and can be bent, which can better protect the second protective layer 52 and also meet the folding requirements of the display module 10.

[0076] In some embodiments, the first protective layer 51 contacts the display panel 3, and / or the second protective layer 52 contacts the display panel 3. The first protective layer 51 and the second protective layer 52 protect the display surface a and the non-display surface b of the display panel 3, forming a "double-sided armor", which greatly improves the impact resistance of the display module 10, and can meet the folding requirements of the display module 10, optimize the crease, and avoid the crease affecting the use.

[0077] In some embodiments, Figure 2 and Figure 3 As shown, the display module 10 further includes a cover plate 4 and a support layer 1 ; the cover plate 4 is disposed on a side of the first protective layer 51 away from the display panel 3 ; the support layer 1 is disposed on a side of the second protective layer 52 away from the display panel 3 .

[0078] Exemplarily, the material of the cover plate 4 may be, for example, a transparent glass material, for protecting the display module 10 .

[0079] Exemplarily, the material of the support layer 1 may be, for example, a metal material, which is used to provide support to prevent the display module 10 from being insufficiently supported and affecting normal display.

[0080] In some embodiments, Figure 5 and Figure 6 As shown, the support layer 1 includes at least one opening 1 - 1 , and when the display module 10 includes at least one folding area N, the opening 1 - 1 is located in the folding area N.

[0081] Exemplarily, in order to improve the folding performance of the display module 10, the portion of the support layer 1 located in the folding area N can be provided with an opening 1-1, that is, the portion of the support layer 1 located in the folding area N is a hollow structure. While meeting the supporting performance, the portion of the support layer 1 located in the folding area N can also be made easier to bend, thereby improving the durability of the display module 10.

[0082] For example, after the display module 10 is prepared, an impact test may be performed to test the impact resistance of the display module 10. When performing the impact test, stress concentration may be formed at the tested location.

[0083] For example, the portion of the support layer 1 located in the folding zone N is provided with the opening 1 - 1, which reduces the strength of the portion of the support layer 1 located in the folding zone N, and is prone to stress concentration failure during impact testing.

[0084] For example, stress concentration failure means that the stress in the stress concentration area is greater than the strength limit of the material. When this condition is met, the component (support layer 1) will fail by fracture at or near the stress concentration location.

[0085] Exemplarily, the second protective layer 52 includes a first part 52-1 and a second part 52-2, and the organic protective layer 6 fills the side of the first part 52-1 away from the display panel 3. The portion of the organic protective layer 6 located in the folding area N is thicker, which enhances the buffering performance of the portion of the organic protective layer 6 located in the folding area. When performing an impact test, the stress applied to the portion of the supporting layer 1 located in the folding area N can be buffered by the organic protective layer 6, which can effectively avoid stress concentration failure when performing an impact test in the folding area N of the display module 10.

[0086] On the other hand, an embodiment of the present disclosure provides a display device 100, such as Figure 7 As shown, the display device 100 includes a display module 10 as provided in any of the above embodiments. The display device 100 also includes a driving chip 20 , and the driving chip 20 is connected to the display module 10 .

[0087] Exemplarily, the display device 100 may be any device that displays either moving (e.g., video) or fixed (e.g., still images), and whether text or images. The display device 100 includes, but is not limited to, a television, a mobile phone, a wearable device, a personal digital assistant (PDA), an augmented reality (AR) device, a virtual reality (VR) device, a handheld or portable computer, a GPS receiver / navigator, a camera, an MP4 video player, a camcorder, a game console, a clock, a calculator, a television monitor, a flat panel display, a computer monitor, an in-vehicle display (e.g., an odometer display, etc.), a navigator, a cockpit controller and / or display, a display of a camera view (e.g., a display of a rear-view camera in a vehicle), an electronic photo, an electronic billboard or sign, a projector, a building structure, a packaging, and an aesthetic structure (e.g., a display of an image of a piece of jewelry), etc.

[0088] In the description of this specification, specific features, structures, materials or characteristics may be combined in an appropriate manner in any one or more embodiments or examples.

[0089] The above is only a specific embodiment of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any changes or substitutions that can be thought of by any person skilled in the art within the technical scope disclosed in the present disclosure should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A display module, characterized in that: include: A display panel, the display panel comprising a display surface and a non-display surface arranged opposite to each other; A protective layer, the protective layer comprising: a first protective layer and a second protective layer, the first protective layer is arranged on the display surface, and the second protective layer is arranged on the non-display surface; The material of the protection layer includes at least one of glass, sapphire and quartz.

2. The display module according to claim 1, characterized in that: include: At least one folding area and a plurality of non-folding areas, wherein one folding area is located between two adjacent non-folding areas; The thickness of the portion of the first protective layer located in the folding area is consistent with the thickness of the portion located in the non-folding area; and / or, The thickness of the portion of the second protective layer located in the folding area is consistent with the thickness of the portion of the second protective layer located in the non-folding area.

3. The display module according to claim 1, characterized in that: include: At least one folding area and a plurality of non-folding areas, wherein one folding area is located between two adjacent non-folding areas; The second protective layer includes: a first portion located in the folding area and a second portion located in the non-folding area, and a thickness of the first portion is smaller than a thickness of the second portion.

4. The display module according to claim 3, characterized in that: The first part includes a first sub-part and a second sub-part, and the second sub-part connects the first sub-part and the second part; The thickness of the second sub-portion is greater than the thickness of the first sub-portion, and smaller than the thickness of the second portion.

5. The display module according to claim 3, characterized in that: Also includes: an organic protective layer, located on a side of the second protective layer away from the display panel and in contact with the second protective layer; The organic protective layer includes: a third portion located in the folding area and a fourth portion located in the non-folding area, and the sum of the thickness of the third portion and the thickness of the first portion is equal to the sum of the thickness of the fourth portion and the thickness of the second portion.

6. The display module according to claim 5, characterized in that: The material of the organic protective layer includes at least one of polyimide and polyurethane.

7. The display module according to any one of claims 1 to 6, characterized in that: The first protective layer is in contact with the display panel; and / or the second protective layer is in contact with the display panel.

8. The display module according to any one of claims 1 to 6, characterized in that: Also includes: a cover plate, disposed on a side of the first protective layer away from the display panel; The supporting layer is arranged on a side of the second protective layer away from the display panel.

9. The display module according to claim 8, characterized in that: The support layer includes at least one opening, and the opening is located in the folding area.

10. A display device, characterized in that: Comprising the display module according to any one of claims 1 to 9; A driving chip is connected to the display module.

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