Display module and display device

Abstract

The application relates to a display module and a display device. The display module comprises a bending area and a non-bending area arranged along a first direction, and comprises a display panel comprising a display part, the display part being located in the bending area and the non-bending area; at least one protective piece arranged on at least one side of the display part in the thickness direction and located in the bending area and the non-bending area; the protective piece comprises a first subpart and a second subpart, at least part of the first subpart is located in the bending area, and the second subpart is located in the non-bending area; the thickness of the first subpart is smaller than the thickness of the second subpart; the thickness direction of the display part intersects the first direction; and the surface compressive stress of the first subpart is greater than the surface compressive stress of the second subpart. Therefore, the display module and the display device provided by the application are beneficial to relieving the damage of the display module in the folding process.

Description

Technical Field

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

[0002] Organic Light Emitting Diode (OLED) display technology is considered the most promising next-generation flat panel display technology. Compared with liquid crystal display technology, OLED display technology has advantages such as low energy consumption, low cost, self-emissiveness, wide viewing angle, and fast response speed.

[0003] In related technologies, a foldable display module may include a display panel and a support component. The support component is located on the backlight side of the display panel and provides support for the display panel. Under external force, the support component can cause the display panel to fold or flatten. However, the aforementioned foldable display module is easily damaged after repeated folding. Summary of the Invention

[0004] Therefore, it is necessary to provide a display module and display device that can help mitigate damage to the display module during the folding process.

[0005] In a first aspect, embodiments of this application provide a display module, the display module including a bent area and a non-bent area arranged along a first direction, the display module comprising:

[0006] A display panel, including a display section, wherein the display section is located in the bending area and the non-bending area;

[0007] At least one protective member is disposed on at least one side of the display portion along the thickness direction and is located in the bending area and non-bending area; the protective member includes a first sub-part and a second sub-part, at least a portion of the first sub-part is located in the bending area and the second sub-part is located in the non-bending area; the thickness of the first sub-part is less than the thickness of the second sub-part; the thickness direction of the display portion intersects with the first direction;

[0008] The surface compressive stress of the first sub-part is greater than that of the second sub-part.

[0009] In one embodiment, the same protective member includes a third sub-part connected between the first sub-part and the second sub-part;

[0010] The thickness of the third sub-section gradually increases from the bending area to the non-bending area, and the surface compressive stress of the third sub-section gradually decreases from the bending area to the non-bending area.

[0011] Preferably, the material of the protective element includes glass;

[0012] Preferably, the protective element includes a first film layer and a second film layer, the second film layer is located outside the first film layer, the second film layer contains sodium ions and potassium ions, the mass percentage of sodium ions in the second film layer of the first sub-part is less than the mass percentage of sodium ions in the second film layer of the second sub-part, and the mass percentage of potassium ions in the second film layer of the first sub-part is greater than the mass percentage of potassium ions in the second film layer of the second sub-part.

[0013] Preferably, the mass percentage of sodium ions in the second membrane layer of the third sub-section gradually increases from the bending region to the non-bending region, and the mass percentage of potassium ions in the second membrane layer of the third sub-section gradually decreases from the bending region to the non-bending region.

[0014] Preferably, the sodium ion mass percentage of the second membrane layer in the first sub-section ranges from 1 wt% to 5 wt%.

[0015] Preferably, the sodium ion content of the second membrane layer in the second sub-section ranges from 5 wt% to 15 wt%.

[0016] Preferably, the sodium ion mass percentage of the second membrane layer in the third sub-section ranges from 1 wt% to 10 wt%.

[0017] Preferably, the potassium ion mass percentage of the second film layer in the first sub-section ranges from 25wt% to 35wt%.

[0018] Preferably, the potassium ion mass percentage of the second membrane layer in the second sub-section ranges from 10wt% to 20wt%.

[0019] Preferably, the potassium ion mass percentage of the second membrane layer in the third sub-section ranges from 15wt% to 30wt%.

[0020] Preferably, the thickness of the second film layer is less than or equal to 5 μm;

[0021] Preferably, the surface compressive stress of the first sub-part is greater than or equal to 600 MPa;

[0022] Preferably, the surface compressive stress of the second sub-part is in the range of 400 MPa to 500 MPa;

[0023] Preferably, the surface compressive stress of the third sub-part is in the range of 500 MPa to 600 MPa;

[0024] Preferably, the thickness of the first sub-part is in the range of 30μm-70μm;

[0025] Preferably, the thickness of the second sub-part is greater than or equal to 100 μm;

[0026] Preferably, the thickness of the second sub-part ranges from 150 μm to 260 μm;

[0027] Preferably, the dimension of the second sub-part along the first direction is greater than or equal to 10 mm;

[0028] Preferably, the protective member has a groove on at least one side along the thickness direction of the display portion, the surface of the third sub-part is configured as the groove sidewall, and the surface of the first sub-part is configured as the groove bottomwall.

[0029] Preferably, the angle between the sidewall of the groove and the bottomwall of the groove is greater than or equal to 178°.

[0030] In one embodiment, at least one protective member is located on the backlight side of the display section, and the protective member located on the backlight side of the display section is configured as a first support member; the light-emitting side and the backlight side of the display section are opposite sides in the thickness direction of the display section.

[0031] Preferably, the dimension of the first support member along the first direction is greater than or equal to 62 mm;

[0032] Preferably, the dimension of the first sub-part of the first support member along the first direction ranges from 8mm to 35mm;

[0033] Preferably, in the same protective member, the protective member includes a third sub-part, which is connected between the first sub-part and the second sub-part, and the size range of the third sub-part of the first support member along the first direction is 10mm-35mm.

[0034] In one embodiment, the display panel includes a curved portion and a binding portion, the curved portion being connected between the binding portion and the display portion, and the display module includes a second support member located on one side of the binding portion;

[0035] Preferably, at least one protective member is located on the backlight side of the display section, and the protective member located on the backlight side of the display section is configured as a first support member, and the thickness of the second support member is less than the thickness of the first sub-part of the first support member.

[0036] Preferably, in the same protective member, there are multiple second sub-parts, and a first sub-part is provided between two adjacent second sub-parts. The dimension of the second sub-part in the protective member that is closest to the curved part along the first direction along the first direction is greater than the dimension of the other second sub-parts along the first direction.

[0037] Preferably, the transmittance of the second support member is greater than or equal to 65%;

[0038] Preferably, the elastic modulus of the second support member is less than that of the first support member;

[0039] Preferably, the display module includes a first adhesive layer and a second adhesive layer. The first adhesive layer is bonded between the first support member and the display part, and the second adhesive layer is bonded between the second support member and the binding part. The thickness of the second adhesive layer is less than the thickness of the first adhesive layer corresponding to the second sub-part of the first support member.

[0040] Preferably, the elastic modulus of the first adhesive layer is less than or equal to the elastic modulus of the second adhesive layer;

[0041] Preferably, the orthographic projection of the first adhesive layer onto the plane where the display part is located has a first outer contour, and the orthographic projection of the first support member onto the plane where the display part is located has a second outer contour; the first outer contour is located within the second outer contour, and the distance between the first outer contour and the second outer contour is less than or equal to 1 mm; or, the second outer contour is located within the first outer contour, and the distance between the first outer contour and the second outer contour is less than or equal to 0.5 mm.

[0042] Preferably, the extension length of the bent portion along the direction from the display portion to the bonding portion ranges from 0.5mm to 2mm;

[0043] Preferably, the dimension of the first support member along the second direction is greater than or equal to the dimension of the second support member along the second direction, and any two of the first direction, the second direction, and the thickness direction of the display portion intersect.

[0044] In one embodiment, at least one protective member is located on the light-emitting side of the display section, and the protective member located on the light-emitting side of the display section is configured as a cover plate or part of a cover plate; the light-emitting side and the backlight side of the display section are opposite sides in the thickness direction of the display section.

[0045] In one embodiment, there are multiple protective elements, including a first protective element and a second protective element, which are located on both sides of the display portion along the thickness direction.

[0046] When the display module is in a folded state, the display module located in the bending area is bent, the first protective member is located on the inside of the display part, and the second protective member is located on the outside of the display part;

[0047] Preferably, the display module is configured as an inwardly folding display module, wherein when the display module is in the folded state, the first protective member is configured as at least a portion of the cover plate, and the second protective member is configured as a first support member; or, the display module is configured as an outwardly folding display module, wherein when the display module is in the folded state, the first protective member is configured as a first support member, and the second protective member is configured as at least a portion of the cover plate.

[0048] Preferably, the thickness of the first sub-part of the second protective member is less than the thickness of the first sub-part of the first protective member;

[0049] Preferably, the thickness of the second sub-part of the second protective member is less than the thickness of the second sub-part of the first protective member;

[0050] Preferably, the protective member has a groove on at least one side along the thickness direction of the display portion, and the depth of the groove of the second protective member is greater than the depth of the groove of the first protective member;

[0051] Preferably, the angle between the bottom wall and the side wall of the groove of the second protective member is greater than the angle between the bottom wall and the side wall of the groove of the first protective member.

[0052] Preferably, the dimension of the first sub-part of the second protective member along the first direction is larger than the dimension of the first sub-part of the first protective member along the first direction;

[0053] Preferably, in the same protective member, the protective member includes a third sub-part, which is connected between the first sub-part and the second sub-part; the dimension of the third sub-part of the second protective member along the first direction is larger than the dimension of the third sub-part of the first protective member along the first direction.

[0054] Preferably, the surface compressive stress of the first sub-part of the second protective member is greater than the surface compressive stress of the first sub-part of the first protective member;

[0055] Preferably, the surface compressive stress of the second sub-part of the second protective member is greater than the surface compressive stress of the second sub-part of the first protective member;

[0056] Preferably, the surface compressive stress of the third sub-part of the second protective member is greater than the surface compressive stress of the third sub-part of the first protective member.

[0057] In one embodiment, a groove is provided on one side of the same protective member along the thickness direction of the display portion; the groove of the first support member and the groove of the cover plate face the same direction, or...

[0058] In the same protective component, a groove is provided on one side along the thickness direction of the display section; the groove of the first support member and the groove of the cover plate face opposite directions; or,

[0059] One of the first support member and the cover plate has a groove on one side along the thickness direction of the display section, and the other has grooves on both sides along the thickness direction of the display section.

[0060] In one embodiment, the same protective member has grooves on both sides along the thickness direction of the display part. The grooves on both sides of the protective member are defined as the first groove and the second groove, respectively. When the display module is in a folded state, the first groove is located on the inner side of the protective member and the second groove is located on the outer side of the protective member.

[0061] Preferably, the dimension of the bottom wall of the second groove along the first direction is greater than the dimension of the bottom wall of the first groove along the first direction;

[0062] Preferably, the dimension of the groove sidewall of the second groove along the first direction is larger than the dimension of the groove sidewall of the first groove along the first direction;

[0063] Preferably, the depth of the second groove is greater than the depth of the first groove;

[0064] Preferably, the angle between the bottom wall and the side wall of the second groove is greater than the angle between the bottom wall and the side wall of the first groove.

[0065] In one embodiment, the protective member has a groove on at least one side along the thickness direction of the display portion, the display module includes at least one filling layer, at least one protective member is disposed corresponding to the at least one filling layer, the filling layer contacts the corresponding protective member, and is at least located in the groove of the corresponding protective member;

[0066] Preferably, the elastic modulus of the filler layer is in the range of 100 kPa to 2000 MPa;

[0067] Preferably, the refractive index of the filling layer is in the range of 1.46-1.56;

[0068] Preferably, in the corresponding protective element and filling layer, the filling layer is entirely located within the groove, and the side of the filling layer away from the protective element is recessed towards the protective element.

[0069] Preferably, the thickness of the filler layer ranges from 10 μm to 40 μm;

[0070] or,

[0071] In the corresponding protective element and filler layer, part of the filler layer covers the second sub-part, and the surface of the filler layer facing away from the protective element is flat.

[0072] Preferably, the thickness of the filling layer corresponding to the groove is in the range of 60μm-250μm;

[0073] Preferably, the thickness of the filling layer corresponding to the second sub-part is in the range of 10μm-50μm.

[0074] Secondly, embodiments of this application provide a display device including the display module described in the first aspect.

[0075] In the display module and display device provided in this application embodiment, the surface compressive stress of the first sub-part is greater than that of the second sub-part in the same protective component. This results in a larger surface compressive stress in the first sub-part, which helps the first sub-part offset the tensile stress generated during folding, improves the bending resistance of the first sub-part, and helps alleviate cracking of the first sub-part, thereby helping to mitigate damage to the display module during folding. Attached Figure Description

[0076] To more clearly illustrate the technical solutions in the embodiments or exemplary embodiments of this application, the drawings used in the description of the embodiments or exemplary embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0077] Figure 1 This is a top view of the display module provided in an embodiment of this application.

[0078] Figure 2 This is a cross-sectional view of the display module provided in an embodiment of this application.

[0079] Figure 3 A cross-sectional view of the protective element provided in an embodiment of this application.

[0080] Figure 4 Another cross-sectional view of the display module provided in an embodiment of this application.

[0081] Figure 5 Another cross-sectional view of the protective element provided in the embodiments of this application.

[0082] Figure 6 Another cross-sectional view of the display module provided in an embodiment of this application.

[0083] Figure 7 Another cross-sectional view of the display module provided in an embodiment of this application.

[0084] Figure 8 Another cross-sectional view of the display module provided in an embodiment of this application.

[0085] Figure 9 Another cross-sectional view of the protective element provided in the embodiments of this application.

[0086] Figure 10 A top view of the first adhesive layer and the first support member provided in an embodiment of this application.

[0087] Explanation of reference numerals in the attached figures:

[0088] 100. Display module; 100a. Bending area; 100b. Non-bending area; 110. Display panel; 111. Display part; 112. Bending part; 113. Binding part; 120. Protective component; 120a. First protective component; 120b. Second protective component; 121. First sub-part; 122. Second sub-part; 123. Third sub-part; 124. Groove; 1241. First groove; 1242. Second groove; 131. First adhesive layer; 132. Second adhesive layer; 133. Third adhesive layer; 134. Fourth adhesive layer; 141. First support member; 142. Second support member; 143. Cover plate; 144. Isolation layer; 145. Hardening layer; 146. Filling layer; A. First direction; B. Second direction; C. Third direction. Detailed Implementation

[0089] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings. Preferred embodiments of this application are shown in the drawings. However, this application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of this application.

[0090] It should be understood that although the terms “first,” “second,” etc., may be used herein to describe various elements, this does not indicate any order, quantity, or importance, but is merely used to distinguish different components. These terms are used only to distinguish one element from another. For example, without departing from the scope of this application, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element. Words such as “comprising” or “including” mean that the element or object preceding the word covers the element or object listed after the word and its equivalents, without excluding other elements or objects.

[0091] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the specification of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0092] In view of at least one of the above problems, embodiments of this application provide a display module and a display device that help to mitigate damage to the display module during the folding process.

[0093] The following will combine Figures 1-10 The display module and display device provided in the embodiments of this application will be described.

[0094] See Figure 1 and Figure 2 This application provides a display module 100, which includes a bent area 100a and a non-bent area 100b arranged along a first direction A. The bent area 100a and the non-bent area 100b can be arranged along the first direction A. The first direction A is the arrangement direction of the bent area 100a and the non-bent area 100b. The number of bent areas 100a and non-bent areas 100b is at least one, and one bent area 100a and one non-bent area 100b are alternately arranged. For example, the number of bent areas 100a can be any number of 1, 2, 3 or more. The number of non-bent areas 100b can be any number of 1, 2, 3 or more.

[0095] See Figure 2 The display module 100 includes a display panel 110 and at least one protective member 120. The display panel 110 includes a display portion 111, which is located in a bending region 100a and a non-bending region 100b. At least one protective member 120 is disposed on at least one side of the display portion 111 along the thickness direction (i.e., direction C), and the protective member 120 is located in the bending region 100a and the non-bending region 100b. Within the same protective member 120, the protective member 120 includes a first sub-part 121 and a second sub-part 122. At least a portion of the first sub-part 121 is located in the bending region 100a, and the second sub-part 122 is located in the non-bending region 100b. The thickness of the first sub-part 121 is less than the thickness of the second sub-part 122. Thus, the thickness of the first sub-part 121... The thickness of the first sub-part 121 is smaller than that of the second sub-part 122, resulting in a lower thickness and lower rigidity of the first sub-part 121. This makes the first sub-part 121 easier to bend, improving its bending performance and thus enhancing the bending performance of the display module 100. This also reduces creases in the display module 100 corresponding to the first sub-part 121. In addition, the thickness of the second sub-part 122 is larger, which helps to improve its impact resistance. Therefore, the protective component 120 can balance both impact resistance and bending performance.

[0096] In some embodiments, in the same protective member 120, the surface compressive stress of the first sub-part 121 is greater than that of the second sub-part 122. This results in a larger surface compressive stress in the first sub-part 121, which helps the first sub-part 121 to offset the tensile stress generated during folding, improves the bending resistance of the first sub-part 121, and helps to alleviate cracking of the first sub-part 121, thereby helping to mitigate damage to the display module 100 during folding.

[0097] See Figure 1For example, the display unit 111 may have a first direction A, a second direction B, and a third direction C, where the first direction A, second direction B, and third direction C are all different. The first direction A and the second direction B can be any two different directions parallel to the display unit 111, and the third direction C can be any direction intersecting a plane parallel to the display unit 111. For example, the first direction A, second direction B, and third direction C can be perpendicular to each other. For example, the first direction A can be the length direction of the display unit 111, the second direction B can be the width direction of the display unit 111, and the third direction C can be the thickness direction of the display unit 111. The length, width, and thickness in the embodiments of this application are merely for descriptive convenience and do not imply any limitation on the dimensions. For example, the width can be greater than, equal to, or less than the length. In the embodiments of this application, the first direction A can be understood as corresponding to a straight line direction when the product is unfolded and a curved direction direction when the product is folded.

[0098] In some embodiments, the same protective member 120 includes a third sub-part 123 connected between the first sub-part 121 and the second sub-part 122. The thickness of the third sub-part 123 gradually increases along the direction from the bending region 100a to the non-bending region 100b. Thus, the third sub-part 123 serves as a transition section between the first sub-part 121 and the second sub-part 122. The gradual increase in thickness of the third sub-part 123 along the direction from the first sub-part 121 to the second sub-part 122 allows for a smooth transition in the thickness of the third sub-part 123 between the first sub-part 121 and the second sub-part 122, which helps to prevent stress concentration problems caused by sudden changes in thickness.

[0099] In some embodiments, in the same protective member 120, the surface compressive stress of the third sub-part 123 gradually decreases along the direction from the bending region 100a to the non-bending region 100b. In this way, the surface compressive stress of the third sub-part 123 gradually decreases along the direction from the first sub-part 121 to the second sub-part 122, which can achieve a smooth transition of surface compressive stress between the first sub-part 121 and the second sub-part 122. This helps to prevent the occurrence of abrupt changes in surface compressive stress and helps to alleviate the cracking of the third sub-part 123.

[0100] For example, the material of the protective element 120 includes glass. For instance, the material of the protective element 120 may include ultra-thin glass, which would facilitate the thinning of the display module 100.

[0101] For example, in the preparation of the protective element 120, glass containing sodium ions can be provided first. Then, the glass is treated by ion exchange to generate compressive stress on the surface and tensile stress inside the glass. In this way, when the glass is subjected to external force, the external force can first be offset by the surface compressive stress, thereby improving the glass's ability to withstand external forces, helping to prevent crack formation and improving the glass's bending resistance. For example, potassium ions can be used to replace sodium ions in the glass, thereby forming a potassium-rich compressive stress layer (i.e., the second film layer) on the surface of the glass, while the portion of the glass where no significant sodium-potassium ion exchange has occurred forms a tensile stress layer (i.e., the first film layer).

[0102] For example, the protective element 120 includes a first film layer and a second film layer. The second film layer is located outside the first film layer. The second film layer can be a compressive stress layer on the surface of the protective element 120 or a tensile stress layer inside the protective element 120. The first film layer contains sodium ions, and the second film layer contains sodium ions and potassium ions. The mass percentage of sodium ions in the second film layer of the first sub-part 121 is less than that in the second film layer of the second sub-part 122, and the mass percentage of potassium ions in the second film layer of the first sub-part 121 is greater than that in the second film layer of the second sub-part 122. Thus, the higher mass percentage of potassium ions and the lower mass percentage of sodium ions in the second film layer of the first sub-part 121 indicates a more complete potassium ion replacement reaction with sodium ions in the first sub-part 121. This allows the first sub-part 121 to obtain higher surface compressive stress compared to the second sub-part 122, meeting the requirement of greater deformation stress during the folding process of the first sub-part 121.

[0103] For example, the mass percentage of sodium ions in the second film layer of the third sub-part 123 gradually increases along the direction from the bending region 100a to the non-bending region 100b, while the mass percentage of potassium ions in the second film layer of the third sub-part 123 gradually decreases along the direction from the bending region 100a to the non-bending region 100b. Thus, along the direction from the first sub-part 121 to the second sub-part 122, the potassium ions in the second film layer of the third sub-part 123 gradually decrease while the sodium ions gradually increase. This indicates that the degree of potassium ion replacement of sodium ions in the third sub-part 123 gradually decreases along this direction. This is beneficial for the surface compressive stress of the third sub-part 123 to gradually decrease along the direction from the bending region 100a to the non-bending region 100b, which helps to prevent the occurrence of abrupt changes in surface compressive stress and helps to alleviate the cracking situation of the third sub-part 123.

[0104] For example, the sodium ion mass percentage of the second film layer of the first sub-part 121 is in the range of 1wt%-5wt%. This avoids the sodium ion mass percentage of the second film layer of the first sub-part 121 being too low, which helps to prevent excessive potassium ion replacement and reduces the difficulty of preparing the first sub-part 121. In addition, it avoids the sodium ion mass percentage of the second film layer of the first sub-part 121 being too high, which helps to increase the potassium ion mass percentage of the second film layer of the first sub-part 121, which helps to increase the surface compressive stress of the first sub-part 121. Furthermore, it also helps to ensure that the surface compressive stress of the first sub-part 121 is within a suitable range, for example, greater than or equal to 600 MPa.

[0105] For example, the sodium ion mass percentage of the second membrane layer of the first sub-part 121 can be 1wt%, 2wt%, 3wt%, 4wt%, 5wt%, or any value between 1wt% and 5wt%.

[0106] For example, the sodium ion mass percentage of the second film layer of the second sub-part 122 is in the range of 5wt%-15wt%, which is beneficial to keep the surface compressive stress of the second sub-part 122 in a suitable range, for example, 400MPa-500MPa.

[0107] For example, the sodium ion mass percentage of the second membrane layer of the second sub-part 122 is 5wt%, 8wt%, 10wt%, 12wt%, 15wt%, or any value between 5wt% and 15wt%.

[0108] For example, the sodium ion mass ratio of the second film layer of the third sub-part 123 is in the range of 1wt%-10wt%, which is beneficial to keep the surface compressive stress of the third sub-part 123 in a suitable range, for example, 500Mpa-600Mpa.

[0109] For example, the sodium ion mass percentage of the second membrane layer of the third sub-part 123 is 1wt%, 3wt%, 5wt%, 8wt%, 10wt%, or any value between 1wt% and 10wt%.

[0110] For example, the potassium ion mass ratio of the second film layer of the first sub-part 121 is in the range of 25wt%-35wt%, which is beneficial to ensure that the surface compressive stress of the first sub-part 121 is in a suitable range, for example, greater than or equal to 600 MPa.

[0111] For example, the potassium ion mass percentage of the second film layer of the first sub-part 121 is 25wt%, 28wt%, 30wt%, 33wt%, 35wt%, or any value between 25wt% and 35wt%.

[0112] For example, the potassium ion mass ratio of the second film layer of the second sub-part 122 is in the range of 10wt%-20wt%, which is beneficial to keep the surface compressive stress of the second sub-part 122 in a suitable range, for example, 400MPa-500MPa.

[0113] For example, the potassium ion mass percentage of the second membrane layer of the second sub-part 122 is 10wt%, 13wt%, 15wt%, 18wt%, 20wt%, or any value between 10wt% and 20wt%.

[0114] For example, the potassium ion mass ratio of the second film layer of the third sub-part 123 is in the range of 15wt%-30wt%, which is beneficial to keep the surface compressive stress range of the third sub-part 123 in a suitable range, for example, 500Mpa-600Mpa.

[0115] For example, the potassium ion mass percentage of the second membrane layer of the third sub-part 123 is 15wt%, 20wt%, 23wt%, 27wt%, 30wt%, or any value between 15wt% and 30wt%.

[0116] For example, the thickness of the second membrane layer is less than or equal to 5 μm, which is equivalent to the depth of ion exchange being less than or equal to 5 μm. This avoids the second membrane layer being too thick, thus preventing the depth of ion exchange from being too large, which helps to reduce the difficulty of the ion exchange reaction.

[0117] For example, the thickness of the second film layer is 1 μm, 2 μm, 3 μm, 4 μm, 5 μm, or any value less than or equal to 5 μm.

[0118] For example, the surface compressive stress of the first sub-part 121 is greater than or equal to 600 MPa. This allows the surface compressive stress of the first sub-part 121 to be relatively large, which helps the first sub-part 121 to offset the tensile stress generated during the folding process, improve the bending resistance of the first sub-part 121, and help alleviate the cracking of the first sub-part 121, thereby helping to mitigate the damage to the display module 100 during the folding process.

[0119] For example, the surface compressive stress of the first sub-part 121 is 600MPa, 650MPa, 700MPa, 750MPa, 800MPa or any value greater than or equal to 600MPa.

[0120] For example, the surface compressive stress of the second sub-part 122 is in the range of 400 MPa-500 MPa. This avoids the surface compressive stress of the second sub-part 122 being too low, which helps to prevent cracks from forming in the second sub-part 122. In addition, it avoids the surface compressive stress of the second sub-part 122 being too high, which helps to reduce the manufacturing cost of the second sub-part 122.

[0121] For example, the surface compressive stress of the second sub-part 122 is 400MPa, 430MPa, 450MPa, 480MPa, 500MPa, or any value between 400MPa and 500MPa.

[0122] For example, the surface compressive stress of the third sub-part 123 is in the range of 500 MPa-600 MPa. This avoids the surface compressive stress of the third sub-part 123 being too low, which helps to prevent cracks from forming in the third sub-part 123. In addition, it avoids the surface compressive stress of the third sub-part 123 being too high, which helps to reduce the manufacturing cost of the third sub-part 123.

[0123] For example, the surface compressive stress of the third sub-part 123 is 500MPa, 530MPa, 550MPa, 580MPa, 600MPa, or any value between 500MPa and 600MPa.

[0124] For example, the thickness of the first sub-part 121 is in the range of 30μm-70μm. This avoids the first sub-part 121 being too thin, which is beneficial to improving the structural strength of the first sub-part 121 and thus improving the impact resistance of the first sub-part 121. In addition, it avoids the first sub-part 121 being too thick, which is beneficial to improving the bending performance of the first sub-part 121.

[0125] For example, the thickness of the first sub-part 121 is 30μm, 40μm, 50μm, 60μm, 70μm, or any value between 30μm and 70μm.

[0126] For example, the thickness of the second sub-part 122 is greater than or equal to 100 μm. This makes the thickness of the second sub-part 122 larger, which is beneficial to improving the structural strength of the second sub-part 122 and thus improving the impact resistance of the second sub-part 122.

[0127] For example, the thickness of the second sub-part 122 is in the range of 150μm-260μm. This avoids the second sub-part 122 being too thin, which is beneficial to improving the structural strength of the second sub-part 122 and thus improving the impact resistance of the second sub-part 122. In addition, it is beneficial to avoid the second sub-part 122 being too thick, which is beneficial to the thinning of the display module 100.

[0128] For example, the thickness of the second sub-part 122 is 100μm, 150μm, 180μm, 200μm, 230μm, 240μm, 260μm or any value greater than or equal to 100μm.

[0129] For example, the second sub-part 122 has a dimension L2 along the first direction A ( Figure 3 If the size is greater than or equal to 10mm, the second sub-part 122 can be made larger along the first direction A, which is beneficial to improving the protection effect of the second sub-part 122 on the display panel 110.

[0130] For example, the dimension of the second sub-part 122 along the first direction A is 10mm, 15mm, 18mm, 20mm, 25mm or any value greater than or equal to 10mm.

[0131] See Figure 2 In some embodiments, the protective member 120 has a groove 124 on at least one side along the thickness direction of the display portion 111. The surface of the third sub-part 123 is constructed as the groove sidewall of the groove 124, and the surface of the first sub-part 121 is constructed as the groove bottomwall of the groove 124. By providing the groove 124, the first sub-part 121 can be thinned so that the thickness of the first sub-part 121 is less than the thickness of the second sub-part 122.

[0132] See Figure 3 For example, the angle β between the sidewall of the groove 124 and the bottom wall of the groove 124 is greater than or equal to 178°. This makes the angle between the sidewall of the groove 124 and the bottom wall of the groove 124 larger, making the slope of the sidewall of the groove 124 gentler, and making the thickness change of the third sub-part 123 gentler, which can better prevent stress concentration problems caused by sudden thickness changes.

[0133] For example, the angle β between the sidewall of the groove 124 and the bottomwall of the groove 124 can be any value of 178°, 178.2°, 178.5°, 178.8°, 179° or greater than 178°.

[0134] The display panel 110 may include a light-emitting side and a backlight side disposed opposite to each other along the thickness direction. The light-emitting side is the side used to display the image, and the backlight side is the other side disposed opposite to the light-emitting side along the thickness direction of the display panel 110. For example, the light-emitting side may be... Figure 2 The upper side of the display panel 110, the backlight side can be Figure 2 The lower side of the display panel 110.

[0135] In some embodiments, at least one protective member 120 is located on the backlight side of the display section 111. The protective member 120 located on the backlight side of the display section 111 is configured as a first support member 141. Under the action of external force, the first support member 141 can drive the display panel 110 to fold and flatten.

[0136] For example, the dimension of the first support member 141 along the first direction A is greater than or equal to 62mm. This makes the dimension of the first support member 141 along the first direction A larger, which is beneficial to improving the support and protection effect of the first support member 141 on the display panel 110.

[0137] For example, the dimension of the first support member 141 along the first direction A is 62mm, 64mm, 66mm, 68mm, 70mm or any value greater than or equal to 62mm.

[0138] For example, the first sub-part 121 of the first support member 141 has a dimension L1 along the first direction A. Figure 3 The range is 8mm-35mm, so that the arc apex of the bending area 100a can fall well into the area where the first sub-part 121 of the first support member 141 is located, thereby improving the bending smoothness of the first support member 141 located in the bending area 100a.

[0139] For example, the dimension of the first sub-part 121 of the first support member 141 along the first direction A is 8mm, 15mm, 20mm, 28mm, 35mm, or any value between 8mm and 35mm.

[0140] For example, the third sub-part 123 of the first support member 141 has a dimension L3 along the first direction A. Figure 3 The thickness ranges from 10mm to 35mm. This helps to prevent the third sub-part 123 of the first support member 141 from being too small along the first direction A, and helps to make the thickness of the third sub-part 123 of the first support member 141 change slowly. In addition, it helps to prevent the third sub-part 123 of the first support member 141 from being too large along the first direction A, and helps to prevent the third sub-part 123 of the first support member 141 from occupying too much of the layout space of the first sub-part 121 and the second sub-part 122 of the first support member 141.

[0141] For example, the dimension of the third sub-part 123 of the first support member 141 along the first direction A is 10mm, 18mm, 22mm, 30mm, 35mm or any value between 10mm and 35mm.

[0142] See Figure 2In some embodiments, the display panel 110 includes a bending portion 112 and a binding portion 113. The bending portion 112 is connected between the binding portion 113 and the display portion 111. The bending portion 112 can be bent. When the bending portion 112 is in a bent state, the binding portion 113 is bent to the backlight side of the display portion 111, which is beneficial to achieving a narrow bezel of the display module 100.

[0143] See Figure 2 In some embodiments, the display module 100 includes a second support member 142 located on one side of the binding portion 113. When the bent portion 112 is not bent, the second support member 142 is located on the side of the binding portion 113 facing the first support member 141. The first support member 141 and the second support member 142 are located on the same side of the display panel 110. The second support member 142 is used to support the binding portion 113 before the bent portion 112 is bent.

[0144] For example, the display module 100 includes a flexible circuit board. A first connecting pad is provided on the side of the bonding portion 113 facing away from the backlight side, and a second connecting pad is provided on the flexible circuit board. The display panel 110 and the flexible circuit board are bonded together through the first and second connecting pads. For example, the second support member 142 can be used to support the bonding portion 113 during the bonding process. The bending portion 112 can be bent after the flexible circuit board is bonded.

[0145] See Figure 2 For example, the thickness of the second support member 142 is less than the thickness of the first sub-part 121 of the first support member 141, so that when the bent portion 112 is in a bent state, it is beneficial to reduce the thickness of the display module 100.

[0146] For example, in the same protective member 120, there are multiple second sub-parts 122, and a first sub-part 121 is provided between two adjacent second sub-parts 122. The size of the second sub-part 122 in the protective member 120 that is closest to the bent portion 112 along the first direction A is larger than the size of the other second sub-parts 122 along the first direction A. In this way, the size of the second sub-part 122 in the protective member 120 that is closest to the bent portion 112 along the first direction A is larger. When the bent portion 112 is in a bent state, the second sub-part 122 in the protective member 120 that is closest to the bent portion 112 along the first direction A can better cover the binding portion 113, which is beneficial to increasing the distance between the binding portion 113 and the bending area 100a along the first direction A, and is beneficial to preventing interference with the binding portion 113 during the folding process.

[0147] For example, the transmittance of the second support member 142 is greater than or equal to 65%, which makes the transmittance of the second support member 142 relatively large. After the flexible circuit board and the display panel 110 are bonded, it is beneficial to observe the bonding of the first connecting pad and the second connecting pad on the backlight side through the second support member 142, the second adhesive layer 132, and the bonding portion 113 located between the first connecting pad and the second adhesive layer 132.

[0148] For example, the transmittance of the second support 142 is 65%, 70%, 75%, 85%, 92%, or any value greater than or equal to 65%.

[0149] For example, the elastic modulus of the second support member 142 is less than that of the first support member 141. This results in a lower elastic modulus of the second support member 142, allowing it to deform to a certain extent during the binding process. This helps to absorb the compressive force during the binding process and provides a certain buffering effect against the compressive force.

[0150] For example, the elastic modulus of the first support member 141 is greater than or equal to 60 GPa, which makes the elastic modulus of the first support member 141 larger, which is beneficial to improve the support and protection effect of the first support member 141 on the display panel 110.

[0151] For example, the elastic modulus of the first support member 141 is 60 GPa, 65 GPa, 70 GPa, 75 GPa, 80 GPa, or any value greater than or equal to 60 GPa.

[0152] For example, the elastic modulus of the second support member 142 is greater than or equal to 2 GPa, which makes the elastic modulus of the second support member 142 larger, which is beneficial to improve the support and protection effect of the second support member 142 on the display panel 110.

[0153] For example, the elastic modulus of the second support 142 is 2GPa, 5GPa, 7GPa, 10GPa, 12GPa, or any value greater than or equal to 2GPa.

[0154] For example, the thickness of the second support member 142 is in the range of 20μm-80μm. This avoids the second support member 142 being too thin, which is beneficial to improving the buffering effect of the second support member 142 on the extrusion pressure during the bonding process. In addition, it avoids the second support member 142 being too thick, which is beneficial to the thinning of the display module 100 when the bent portion 112 is in a bent state.

[0155] For example, the thickness of the second support 142 is 20μm, 35μm, 45μm, 60μm, 80μm, or any value between 20μm and 80μm.

[0156] For example, the material of the second support 142 may include at least one of polyethylene terephthalate (PET), polyimide (PI), cyclic olefin polymer (COP), polymethyl methacrylate (PMMA), and polyethylene naphthalate (PEN).

[0157] See Figure 2 For example, the display module 100 includes a first adhesive layer 131 and a second adhesive layer 132. The first adhesive layer 131 is bonded between the first support member 141 and the display part 111, and the second adhesive layer 132 is bonded between the second support member 142 and the binding part 113. The thickness of the second adhesive layer 132 is less than the thickness of the first adhesive layer 131 corresponding to the second sub-part 122 of the first support member 141. This makes the thickness of the second adhesive layer 132 smaller, which is beneficial to reducing the thickness of the display module 100 when the bending part 112 is in a bent state, and is beneficial to making the display module 100 thinner and lighter.

[0158] For example, the elastic modulus of the first adhesive layer 131 may be less than or equal to the elastic modulus of the second adhesive layer 132. For instance, if the elastic modulus of the first adhesive layer 131 is less than that of the second adhesive layer 132, the lower elastic modulus of the first adhesive layer 131 helps the module 100 absorb and buffer bending stress during folding, thus mitigating creases in the bending area 100a. Conversely, if the elastic modulus of the second adhesive layer 132 is higher, using a high-elastic-modulus second adhesive layer 132 in conjunction with a low-elastic-modulus second support member 142 to jointly support the binding portion 113 improves the overall support effect of the second support member 142 and the second adhesive layer 132 on the binding portion 113. Alternatively, if the elastic modulus of the first adhesive layer 131 is equal to that of the second adhesive layer 132, the same material can be used to form both the first adhesive layer 131 and the second adhesive layer 132, reducing the types of materials used and lowering material management costs.

[0159] For example, the thickness of the first adhesive layer 131 corresponding to the second sub-part 122 of the first support member 141 is in the range of 15μm-75μm. This avoids the first adhesive layer 131 corresponding to the second sub-part 122 of the first support member 141 being too thin, which is beneficial to improving the bonding stability of the first adhesive layer 131. In addition, it avoids the first adhesive layer 131 corresponding to the second sub-part 122 of the first support member 141 being too thick, which is beneficial to the thinning of the display module 100.

[0160] For example, the thickness of the first adhesive layer 131 corresponding to the second sub-part 122 of the first support member 141 is 15μm, 30μm, 45μm, 60μm, 75μm, or any value between 15μm and 75μm.

[0161] For example, the elastic modulus of the second adhesive layer 132 is in the range of 10 kPa to 200 kPa. This avoids the elastic modulus of the second adhesive layer 132 being too small, which helps to prevent the second adhesive layer 132 from overflowing under the pressure during the bonding process or from undergoing excessive deformation that would affect the bonding effect. In addition, it avoids the elastic modulus of the second adhesive layer 132 being too large, which helps to absorb the extrusion pressure during the bonding process and plays a certain buffering role against the extrusion pressure during the bonding process.

[0162] For example, the elastic modulus of the second adhesive layer 132 is 10 kPa, 50 kPa, 100 kPa, 150 kPa, 200 kPa, or any value between 10 kPa and 200 kPa.

[0163] For example, the thickness of the second adhesive layer 132 is in the range of 5μm-30μm. This avoids the second adhesive layer 132 being too thin, which is beneficial to improve the buffering and absorption of the extrusion pressure during the bonding process. In addition, it avoids the second adhesive layer 132 being too thick, which is beneficial to the thinning of the display module 100 when the bending portion 112 is in a bent state.

[0164] For example, the thickness of the second adhesive layer 132 is 5μm, 10μm, 18μm, 24μm, 30μm, or any value between 5μm and 30μm.

[0165] See Figure 10 In some embodiments, the first adhesive layer 131 has a first outer contour when projected onto the plane where the display portion 111 is located, and the first support member 141 has a second outer contour when projected onto the plane where the display portion 111 is located; the first outer contour is located within the second outer contour, so that the first adhesive layer 131 is recessed relative to the first support member 141.

[0166] The plane on which the display unit 111 is located can be the plane on the outer surface of the display unit 111 on any side along the thickness direction.

[0167] For example, in an embodiment where the first outer contour is located within the second outer contour, the distance between the first outer contour and the second outer contour is less than or equal to 1 mm. This results in a smaller inward dimension of the first adhesive layer 131 relative to the first support member 141, which is beneficial to increasing the bonding area between the first adhesive layer 131 and the first support member 141, thereby improving the bonding stability between the first adhesive layer 131 and the first support member 141.

[0168] For example, in an embodiment where the first outer contour is located within the second outer contour, the distance between the first outer contour and the second outer contour is any value of 0.2mm, 0.5mm, 0.8mm, 1mm, or less than or equal to 1mm.

[0169] In other examples, the second outer contour is located within the first outer contour, meaning the first support 141 is recessed relative to the first adhesive layer 131. The distance between the first and second outer contours is less than or equal to 0.5 mm, thus making the recessed dimension of the first support 141 relative to the first adhesive layer 131 small, which helps to prevent excessive adhesive overflow in the first adhesive layer 131.

[0170] For example, in an embodiment where the second outer contour is located within the first outer contour, the distance between the first outer contour and the second outer contour is 0.1 mm, 0.2 mm, 0.3 mm, 0.5 mm, or any value less than or equal to 0.5 mm.

[0171] For example, the extension length L4 of the bent portion 112 along the direction from the display portion 111 to the binding portion 113 is ( Figure 1 The range is 0.5mm-2mm. This avoids the bending portion 112 from having too small an extension length in the direction from the display portion 111 to the binding portion 113. When the bending portion 112 is in a bent state, it helps to prevent the bending portion 112 from being too bent and thus bearing too much bending stress. In addition, it avoids the bending portion 112 from having too large an extension length in the direction from the display portion 111 to the binding portion 113. When the bending portion 112 is in a bent state, it helps to prevent the bending portion 112 from occupying too much horizontal space, thereby helping to achieve a narrow bezel of the display module 100.

[0172] For example, the extension length of the bent portion 112 along the direction from the display portion 111 to the binding portion 113 is 0.5mm, 0.8mm, 1.2mm, 1.6mm, 2mm, or any value between 0.5mm and 2mm.

[0173] For example, the dimension of the first support member 141 along the second direction B is greater than or equal to the dimension of the second support member 142 along the second direction B. This allows the first support member 141 to have a larger dimension along the second direction B, which is beneficial to improving the support and protection effect of the first support member 141 on the display panel 110. When an impact occurs, the external force is mainly borne and dispersed by the large-sized first support member 141, which allows the external force to be dispersed over a larger range, thus helping to reduce local stress.

[0174] In some embodiments, at least one protective member 120 is located on the light-emitting side of the display section 111, and the protective member 120 located on the light-emitting side of the display section 111 is configured as a cover plate 143 or a part of the cover plate 143; the light-emitting side and the backlight side of the display section 111 are opposite sides in the thickness direction of the display section 111.

[0175] For example, the size of the light-emitting side protective member 120 along the first direction A is greater than or equal to 60mm. This makes the size of the light-emitting side protective member 120 along the first direction A larger, which is beneficial to improving the protective effect of the light-emitting side protective member 120 on the display panel 110.

[0176] For example, the size of the protective element 120 on the light-emitting side along the first direction A is 60mm, 65mm, 70mm, 75mm, 80mm or any value greater than or equal to 60mm.

[0177] For example, the size range of the first sub-part 121 of the light-emitting side protective member 120 along the first direction A is 8mm-30mm. In this way, the size of the first sub-part 121 of the light-emitting side protective member 120 along the first direction A can be avoided, so that the arc apex of the bending area 100a can fall well into the area where the first sub-part 121 of the light-emitting side protective member 120 is located. During the folding process, the bending smoothness of the cover plate 143 located in the bending area 100a can be improved.

[0178] For example, the first sub-part 121 of the protective member 120 on the light-emitting side has a dimension of 8mm, 14mm, 20mm, 26mm, 30mm or any value between 8mm and 30mm along the first direction A.

[0179] For example, the size range of the third sub-part 123 of the light-emitting side protective member 120 along the first direction A is 10mm-30mm. This helps to avoid the size of the third sub-part 123 of the light-emitting side protective member 120 along the first direction A being too small, and helps to make the thickness of the third sub-part 123 of the light-emitting side protective member 120 change slowly. In addition, it helps to avoid the size of the third sub-part 123 of the light-emitting side protective member 120 along the first direction A being too large, and helps to avoid the third sub-part 123 of the light-emitting side protective member 120 occupying too much of the layout space of the first sub-part 121 and the second sub-part 122 of the light-emitting side protective member 120.

[0180] For example, the third sub-part 123 of the protective member 120 on the light-emitting side has a dimension of 10mm, 16mm, 22mm, 28mm, 30mm or any value between 10mm and 30mm along the first direction A.

[0181] This embodiment of the application uses one bending area 100a and two non-bending areas 100b as an example, with a bending area 100a connecting the two non-bending areas 100b. The two non-bending areas 100b may include a first non-bending area and a second non-bending area, with the bending area 100a located between the first and second non-bending areas. The bending area 100a can be bent and flattened, thereby realizing the folding and flattening of the display module 100.

[0182] It should be noted that the display module 100 may include a flattened state, a folded state, and an intermediate state between the two. The state of the display module 100 is also the state of the display panel 110 and the display device. After the first support member 141 is connected to the display panel 110, the user applies force to the display panel 110 through the first support member 141, which can drive the display panel 110 to switch between the flattened state and the folded state.

[0183] For example, the flattened state refers to the state in which the various parts of the display module 100 are approximately on the same plane. In this state, the display panel 110 of the first non-bending area, the display panel 110 of the second non-bending area, and the display panel 110 of the bending area 100a are approximately on the same plane, and the angle between the display panel 110 of the first non-bending area and the display panel 110 of the second non-bending area is approximately 180 degrees. In the flattened state, the display area of ​​the display module 100 is larger to ensure a better user experience.

[0184] For example, the folded state refers to the display panel 110 of the bending area 100a being bent, with the display panel 110 of the first non-bending area and the display panel 110 of the second non-bending area at least partially overlapping in the thickness direction of the display module 100, and the included angle between the display panel 110 of the first non-bending area and the display panel 110 of the second non-bending area being approximately 0 degrees. In the folded state, the display module 100 and the display device having the display module 100 are smaller in size, making it convenient to store and carry the display device.

[0185] In some embodiments, the display device can be an inwardly folding display device, that is, when the display device is in a folded state, the folded display panel 110 is located inside the first support member 141, the cover plate 143 is located inside the display panel 110, and the first support member 141 can protect the display panel 110. At this time, the display panel 110 located in the first non-bending area and the display panel 110 located in the second non-bending area are arranged facing each other.

[0186] In other embodiments, the display device can be an outward-folding display device, that is, when the display device is in a folded state, the folded display panel 110 is located outside the first support member 141, and the cover plate 143 is located outside the display panel 110. The display panel 110 can perform display functions in the folded state to meet the needs of different display scenarios. At this time, the display panels 110 disposed in the first non-bending area and the second non-bending area are arranged opposite to each other.

[0187] See Figure 2 In some embodiments, the display module 100 can be bent in a teardrop shape, so that the distance between the display panels 110 of the two non-bending areas 100b is closer, which can reduce the entry of external dust into the display panels 110 of the two non-bending areas 100b, thereby protecting the display panels 110.

[0188] See Figure 4 In some embodiments, there are multiple protective members 120, including a first protective member 120a and a second protective member 120b, which are located on opposite sides of the display portion 111 along its thickness direction. When the display module 100 is in a folded state, the display module 100 located in the bending region 100a is bent, with the first protective member 120a located inside the display portion 111 and the second protective member 120b located outside the display portion 111. In embodiments where the display module 100 is configured as an inwardly folding display module, when the display module 100 is in a folded state, the first protective member 120a is configured as at least a portion of the cover plate 143, and the second protective member 120b is configured as a first support member 141. In an embodiment where the display module 100 is configured as an outward-folding display module, when the display module 100 is in the folded state, the first protective member 120a is configured as a first support member 141, and the second protective member 120b is configured as at least a portion of the cover plate 143. Specifically, when the display module 100 is in the folded state, the second protective member 120b located on the outer side of the display portion 111 is subjected to tensile stress, which is greater than the tensile stress experienced by the first protective member 120a located on the inner side of the display portion 111. The second protective member 120b, subjected to greater tensile stress, is more prone to cracking.

[0189] For example, the thickness of the first sub-part 121 of the second protective member 120b is less than the thickness of the first sub-part 121 of the first protective member 120a. This makes the thickness of the first sub-part 121 of the second protective member 120b smaller, thereby further thinning the thickness of the first sub-part 121 of the second protective member 120b, which is more prone to cracking. This can make the bending smoothness of the first sub-part 121 of the second protective member 120b better, which is beneficial to improving the bending performance of the first sub-part 121 of the second protective member 120b, thereby specifically alleviating the cracking of the second protective member 120b subjected to greater tensile stress.

[0190] For example, the thickness of the second sub-part 122 of the second protective member 120b is less than the thickness of the second sub-part 122 of the first protective member 120a. This makes the thickness of the second sub-part 122 of the second protective member 120b smaller, and the thickness of the second sub-part 122, which is more prone to cracking, is further reduced in a targeted manner, thereby specifically mitigating the cracking of the second protective member 120b subjected to greater tensile stress.

[0191] For example, the depth of the groove 124 of the second protective member 120b is greater than the depth of the groove 124 of the first protective member 120a. This makes it easier for the thickness of the first sub-part 121 of the second protective member 120b to be less than the thickness of the first sub-part 121 of the first protective member 120a. Targeted thinning of the thickness of the first sub-part 121, which is more prone to cracking, can improve the bending smoothness of the first sub-part 121 of the second protective member 120b, thereby improving the bending performance of the first sub-part 121 of the second protective member 120b and specifically alleviating cracking of the second protective member 120b subjected to greater tensile stress.

[0192] For example, the angle between the bottom wall and the side wall of the groove 124 of the second protective member 120b is greater than the angle between the bottom wall and the side wall of the groove 124 of the first protective member 120a. This makes the inclination of the side wall of the groove 124 of the second protective member 120b less than that of the side wall of the groove 124 of the first protective member 120a, resulting in a gentler slope of the side wall of the groove 124 of the second protective member 120b, which effectively alleviates cracks in the second protective member 120b subjected to greater tensile stress.

[0193] For example, the dimension of the first sub-part 121 of the second protective member 120b along the first direction A is larger than the dimension of the first sub-part 121 of the first protective member 120a along the first direction A. In this way, by specifically increasing the dimension of the first sub-part 121 of the second protective member 120b along the first direction A, which is more prone to cracking, the bending smoothness of the first sub-part 121 of the second protective member 120b can be improved, which is beneficial to improving the bending performance of the first sub-part 121 of the second protective member 120b and specifically alleviating the cracking of the second protective member 120b subjected to greater tensile stress.

[0194] For example, the dimension of the third sub-part 123 of the second protective member 120b along the first direction A is larger than the dimension of the third sub-part 123 of the first protective member 120a along the first direction A. Thus, by specifically increasing the dimension of the third sub-part 123 of the second protective member 120b, which is more prone to cracking, the cracking of the second protective member 120b subjected to greater tensile stress can be specifically alleviated.

[0195] For example, the surface compressive stress of the first sub-part 121 of the second protective member 120b is greater than the surface compressive stress of the first sub-part 121 of the first protective member 120a. In this way, the surface compressive stress of the first sub-part 121 of the second protective member 120b, which is more prone to cracking, is further increased in a targeted manner. This helps the first sub-part 121 of the second protective member 120b to better offset the tensile stress generated during the folding process, and better improve the bending resistance of the first sub-part 121 of the second protective member 120b, thereby specifically alleviating the cracking of the second protective member 120b subjected to greater tensile stress.

[0196] For example, the surface compressive stress of the second sub-part 122 of the second protective member 120b is greater than the surface compressive stress of the second sub-part 122 of the first protective member 120a. In this way, the surface compressive stress of the second sub-part 122 of the second protective member 120b, which is more prone to cracking, is further increased in a targeted manner. This helps the second sub-part 122 of the second protective member 120b to better offset the tensile stress generated during the folding process, and to specifically alleviate the cracking of the second protective member 120b subjected to greater tensile stress.

[0197] For example, the surface compressive stress of the third sub-part 123 of the second protective member 120b is greater than the surface compressive stress of the third sub-part 123 of the first protective member 120a. In this way, the surface compressive stress of the third sub-part 123 of the second protective member 120b, which is more prone to cracking, is further increased in a targeted manner. This helps the third sub-part 123 of the second protective member 120b to better offset the tensile stress generated during the folding process, and to specifically alleviate the cracking of the second protective member 120b subjected to greater tensile stress.

[0198] In some embodiments, see Figure 2 and Figure 3 In the same protective member 120, a groove 124 is provided on one side of the protective member 120 along the thickness direction of the display portion 111; the groove 124 of the first support member 141 and the groove 124 of the cover plate 143 are oriented in the same direction. Alternatively, in the same protective member 120, a groove 124 is provided on one side of the protective member 120 along the thickness direction of the display portion 111; the groove 124 of the first support member 141 and the groove 124 of the cover plate 143 are oriented in opposite directions. Alternatively, one of the first support member 141 and the cover plate 143 is provided with a groove 124 on one side along the thickness direction of the display portion 111, and the other of the first support member 141 and the cover plate 143 is provided with grooves 124 on both sides along the thickness direction of the display portion 111. Alternatively, see Figure 8 In the same protective component 120, grooves 124 are provided on both sides of the protective component 120 along the thickness direction of the display part 111.

[0199] For example, when the display module 100 is in a folded state, the tensile stress on the outer part of the same protective member 120 is greater than that on the inner part of the protective member 120. The outer part of the protective member 120 is more likely to crack during the folding process.

[0200] See Figure 8 and Figure 9 In some embodiments, in the same protective member 120, grooves 124 are provided on both sides of the protective member 120 along the thickness direction of the display portion 111. The grooves 124 on both sides of the protective member 120 are defined as the first groove 1241 and the second groove 1242. When the display module 100 is in a folded state, the first groove 1241 is located on the inner side of the protective member 120, and the second groove 1242 is located on the outer side of the protective member 120.

[0201] For example, in the same protective member 120, the dimension of the bottom wall of the second groove 1242 along the first direction A is larger than the dimension of the bottom wall of the first groove 1241 along the first direction A. Thus, in the same protective member 120, the dimension of the bottom wall of the second groove 1242 along the first direction A of the part of the protective member 120 that is more prone to cracking and closer to the outside (in the folded state) can be specifically increased, thereby specifically alleviating the cracking of the part of the protective member 120 that is subjected to greater tensile stress and closer to the outside.

[0202] For example, in the same protective member 120, the dimension of the groove sidewall of the second groove 1242 along the first direction A is larger than the dimension of the groove sidewall of the first groove 1241 along the first direction A. Thus, in the same protective member 120, the dimension of the groove sidewall of the second groove 1242 along the first direction A of the part of the protective member 120 that is more prone to cracking and closer to the outside (in the folded state) can be specifically increased, thereby mitigating the cracking of the part of the protective member 120 that is subjected to greater tensile stress and closer to the outside.

[0203] For example, in the same protective member 120, the depth of the second groove 1242 is greater than the depth of the first groove 1241. Thus, in the same protective member 120, the depth of the second groove 1242, which is more prone to cracking and is closer to the outer side (in the folded state), is specifically increased, thereby specifically alleviating the cracking of the part of the protective member 120 that is subjected to greater tensile stress and is closer to the outer side.

[0204] For example, the angle β2 between the bottom wall and side wall of the second groove 1242 is greater than the angle β1 between the bottom wall and side wall of the first groove 1241. This results in a less steep inclination of the side wall of the second groove 1242 compared to the side wall of the first groove 1241, making the slope of the side wall of the second groove 1242 gentler. This allows for targeted mitigation of cracks in the portion of the protective member 120 that experiences greater tensile stress and is closer to the outer side (in the folded state). The portion of the protective member 120 closer to the outer side refers to the portion of the protective member 120 that is closer to the outer side in the folded state.

[0205] See Figure 6 and Figure 7 In some embodiments, the display module 100 includes at least one filler layer 146, and at least one protective member 120 is correspondingly disposed with the at least one filler layer 146. The filler layer 146 contacts the corresponding protective member 120, and the filler layer 146 is at least located within the groove 124 of the corresponding protective member 120. Thus, by providing the filler layer 146, the adhesive layer extending into the groove 124 can be reduced (e.g., Figure 6 The thickness of the fourth adhesive layer 134 and the first adhesive layer 131 in the display module 100 is beneficial to improving the creep recovery performance of the display module 100. The greater the thickness of the adhesive layer, the worse its creep recovery performance. Reducing the thickness of the adhesive layer can improve the creep recovery performance of the display module 100.

[0206] For example, the elastic modulus of the filler layer 146 is in the range of 100 kPa to 2000 MPa. This avoids the elastic modulus of the filler layer 146 being too low, which is beneficial to improving the impact resistance of the overall structure formed by the filler layer 146 and the protective member 120. In addition, it avoids the elastic modulus of the filler layer 146 being too high, which is beneficial to improving the bending smoothness of the overall structure formed by the first sub-part 121 and the filler layer 146.

[0207] For example, the elastic modulus of the filler layer 146 is 100 kPa, 500 kPa, 800 kPa, 1200 kPa, 2000 kPa, or any value between 100 kPa and 2000 kPa.

[0208] For example, the material of the filling layer 146 may include an organic material.

[0209] For example, the refractive index of the filling layer 146 is in the range of 1.46-1.56.

[0210] For example, the refractive index of the filling layer 146 is 1.46, 1.49, 1.51, 1.54, 1.56, or any value between 1.46 and 1.56.

[0211] See Figure 7 In some embodiments, in the corresponding protective member 120 and filling layer 146, the filling layer 146 is entirely located within the groove 124. The side of the filling layer 146 away from the protective member 120 is recessed towards the protective member 120. The filling layer 146 partially fills the groove 124. This reduces the thickness of the filling layer 146 and allows the adhesive layer adjacent to the filling layer 146 to extend into the recess enclosed by the filling layer 146. This is beneficial to increasing the bonding area between the filling layer 146 and the adjacent adhesive layer, and thus improving the bonding stability between the filling layer 146 and the adjacent adhesive layer.

[0212] For example, the thickness of the filler layer 146 ranges from 10 μm to 40 μm.

[0213] For example, the thickness of the filler layer 146 is 10 μm, 18 μm, 25 μm, 32 μm, 40 μm, or any value between 10 μm and 40 μm.

[0214] See Figure 6In other embodiments, in the corresponding protective member 120 and filling layer 146, a portion of the filling layer 146 covers the second sub-part 122, and the surface of the filling layer 146 facing away from the protective member 120 is planar. In this case, the filling layer 146 completely fills the groove 124. Thus, the adhesive layer adjacent to the filling layer 146 no longer extends into the groove 124, which helps to reduce the thickness of the adhesive layer adjacent to the filling layer 146, thereby improving the creep recovery performance of the display module 100.

[0215] For example, the thickness of the filling layer 146 corresponding to the groove 124 is in the range of 60μm-250μm. This avoids the filling layer 146 corresponding to the groove 124 being too thin, which is beneficial for the filling layer 146 to completely fill the groove 124. In addition, it avoids the filling layer 146 corresponding to the groove 124 being too thick, which is beneficial for the thinning of the display module 100.

[0216] For example, the thickness of the filling layer 146 corresponding to the groove 124 is 60μm, 100μm, 150μm, 200μm, 250μm or any value between 60μm and 250μm.

[0217] For example, the thickness of the filling layer 146 corresponding to the second sub-part 122 ranges from 10 μm to 50 μm.

[0218] For example, the thickness of the filling layer 146 corresponding to the second sub-part 122 is 10μm, 20μm, 30μm, 40μm, 50μm, or any value between 10μm and 50μm.

[0219] For example, the material of at least one of the first adhesive layer 131, the second adhesive layer 132, the third adhesive layer 133, and the fourth adhesive layer 134 may include at least one of optically clear adhesive (OCA) and epoxy resin. The adhesive layer may be bonded to adjacent film layers.

[0220] See Figure 2 In some embodiments, a cover plate 143 is provided on the side of the display panel 110 opposite to the first support member 141. The cover plate 143 is used to protect the display panel 110 to prevent the user from scratching the display panel 110 when using it. The cover plate 143 and the display panel 110 are bonded together by a third adhesive layer 133.

[0221] See Figure 2 In some embodiments, the cover plate 143 may include a protective element 120, which can improve the impact resistance of the cover plate 143. For example, the protective element 120 and the display panel 110 are bonded together by a third adhesive layer 133.

[0222] See Figure 2 In some embodiments, the cover plate 143 may include a hardening layer 145, which is located on the side of the protective member 120 of the cover plate 143 away from the display panel 110. The hardening layer 145 can improve the wear resistance and scratch resistance of the surface of the cover plate 143.

[0223] See Figure 2 In some embodiments, the cover plate 143 may include an isolation layer 144 located between the hardened layer 145 and the protective member 120 of the cover plate 143, which can prevent contact between the hardened layer 145 and the protective member 120 of the cover plate 143. For example, the isolation layer 144 can serve as a carrier for the hardened layer 145. The hardened layer 145 can be formed on the isolation layer 144 first, and then the isolation layer 144 with the hardened layer 145 and the protective member 120 of the cover plate 143 can be assembled together by a fourth adhesive layer 134. In this case, the protective member 120 of the cover plate 143 and the isolation layer 144 are bonded together by the fourth adhesive layer 134.

[0224] For example, the material of the insulating layer 144 may include at least one of polyimide (PI), polyethylene terephthalate (PET), polyethylene naphthalate (PEN), polycarbonate (PC), cyclic olefin polymer (COP), polymethyl methacrylate (PMMA), and cellulose triacetate (TCA).

[0225] For example, the display panel 110 can be an organic light-emitting diode (OLED) display panel, a micro organic light-emitting diode (Micro OLED) display panel, a light-emitting diode (LED) display panel, a quantum dot light-emitting diode (QLED) display panel, a mini light-emitting diode (MiniLED) display panel, a micro light-emitting diode (Micro LED) display panel, or a liquid crystal display (LCD) display panel, etc. This application embodiment uses an OLED display panel as an example for illustration.

[0226] The following describes the display device provided in the embodiments of this application.

[0227] This application provides a display device, which may include a display module. The display device can be an electronic paper device, mobile phone, tablet computer, television, monitor, laptop computer, digital photo frame, smart bracelet, smartwatch, supercomputer, navigator, wireless device, personal digital assistant (PDA), handheld or portable computer, GPS receiver / navigator, camera, MP4 video player, camcorder, game console, clock, calculator, television monitor, computer monitor, automotive display (e.g., odometer display), cockpit controller and / or display, camera view display (e.g., display of a rearview camera in a vehicle), electronic billboard or sign, projector, and other mobile or fixed terminals.

[0228] When using the terms “including,” “having,” and “comprising” as described herein, another component may be added unless explicitly qualifying terms such as “only,” “consisting of,” etc. are used. Unless otherwise stated, singular terms may include plural forms and should not be construed as having a quantity of one.

[0229] The technical features of the above embodiments can be combined in any way. For the sake of brevity, 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.

[0230] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A display module, characterized in that, The display module includes a bent area and a non-bent area arranged along a first direction, and the display module includes: A display panel includes a display section located in the bending area and the non-bending area; At least one protective member is disposed on at least one side of the display portion along the thickness direction and located in the bending area and the non-bending area; the protective member includes a first sub-part and a second sub-part, at least a portion of the first sub-part is located in the bending area, and the second sub-part is located in the non-bending area; the thickness of the first sub-part is less than the thickness of the second sub-part; the thickness direction of the display portion intersects with the first direction; The surface compressive stress of the first sub-part is greater than that of the second sub-part.

2. The display module according to claim 1, characterized in that, In the same protective component, the protective component includes a third sub-part, which is connected between the first sub-part and the second sub-part; The thickness of the third sub-part gradually increases along the direction from the bending area to the non-bending area, and the surface compressive stress of the third sub-part gradually decreases along the direction from the bending area to the non-bending area. Preferably, the material of the protective element includes glass; Preferably, the protective element includes a first film layer and a second film layer, the second film layer is located outside the first film layer, the second film layer contains sodium ions and potassium ions, the mass percentage of sodium ions in the second film layer of the first sub-part is less than the mass percentage of sodium ions in the second film layer of the second sub-part, and the mass percentage of potassium ions in the second film layer of the first sub-part is greater than the mass percentage of potassium ions in the second film layer of the second sub-part. Preferably, the sodium ion mass percentage of the second membrane layer of the third sub-section gradually increases along the direction from the bending region to the non-bending region, and the potassium ion mass percentage of the second membrane layer of the third sub-section gradually decreases along the direction from the bending region to the non-bending region. Preferably, the sodium ion mass percentage of the second membrane layer in the first sub-part ranges from 1 wt% to 5 wt%. Preferably, the sodium ion content of the second membrane layer in the second sub-part ranges from 5 wt% to 15 wt%. Preferably, the sodium ion content of the second membrane layer in the third sub-part ranges from 1 wt% to 10 wt%. Preferably, the potassium ion mass percentage of the second film layer in the first sub-part ranges from 25wt% to 35wt%. Preferably, the potassium ion mass percentage of the second membrane layer in the second sub-part ranges from 10wt% to 20wt%. Preferably, the potassium ion mass percentage of the second film layer in the third sub-part ranges from 15wt% to 30wt%. Preferably, the thickness of the second film layer is less than or equal to 5 μm; Preferably, the surface compressive stress of the first sub-part is greater than or equal to 600 MPa; Preferably, the surface compressive stress of the second sub-part is in the range of 400 MPa to 500 MPa; Preferably, the surface compressive stress of the third sub-part is in the range of 500 MPa-600 MPa; Preferably, the thickness of the first sub-part is in the range of 30μm-70μm; Preferably, the thickness of the second sub-part is greater than or equal to 100 μm; Preferably, the thickness of the second sub-part ranges from 150 μm to 260 μm; Preferably, the dimension of the second sub-part along the first direction is greater than or equal to 10 mm; Preferably, the protective member has a groove on at least one side along the thickness direction of the display portion, the surface of the third sub-part is configured as the groove sidewall, and the surface of the first sub-part is configured as the groove bottomwall. Preferably, the angle between the sidewall of the groove and the bottom wall of the groove is greater than or equal to 178°.

3. The display module according to claim 1, characterized in that, At least one of the protective members is located on the backlight side of the display unit, and the protective member located on the backlight side of the display unit is configured as a first support member; the light-emitting side and the backlight side of the display unit are opposite sides in the thickness direction of the display unit; Preferably, the dimension of the first support member along the first direction is greater than or equal to 62 mm; Preferably, the dimension of the first sub-part of the first support member along the first direction is in the range of 8mm-35mm; Preferably, in the same protective member, the protective member includes a third sub-part, which is connected between the first sub-part and the second sub-part, and the size range of the third sub-part of the first support member along the first direction is 10mm-35mm.

4. The display module according to claim 1, characterized in that, The display panel includes a curved portion and a binding portion, the curved portion being connected between the binding portion and the display portion, and the display module including a second support member, the second support member being located on one side of the binding portion; Preferably, at least one of the protective members is located on the backlight side of the display unit, and the protective member located on the backlight side of the display unit is configured as a first support member, and the thickness of the second support member is less than the thickness of the first sub-part of the first support member; Preferably, in the same protective member, there are multiple second sub-parts, and a first sub-part is disposed between two adjacent second sub-parts. The dimension of the second sub-part in the protective member that is closest to the curved portion along the first direction along the first direction is greater than the dimension of the other second sub-parts along the first direction. Preferably, the transmittance of the second support member is greater than or equal to 65%; Preferably, the elastic modulus of the second support member is less than that of the elastic modulus of the first support member; Preferably, the display module includes a first adhesive layer and a second adhesive layer, the first adhesive layer is bonded between the first support member and the display part, the second adhesive layer is bonded between the second support member and the binding part, and the thickness of the second adhesive layer is less than the thickness of the first adhesive layer corresponding to the second sub-part of the first support member; Preferably, the elastic modulus of the first adhesive layer is less than or equal to the elastic modulus of the second adhesive layer; Preferably, the orthographic projection of the first adhesive layer on the plane where the display part is located has a first outer contour, and the orthographic projection of the first support member on the plane where the display part is located has a second outer contour; the first outer contour is located within the second outer contour, and the distance between the first outer contour and the second outer contour is less than or equal to 1 mm; or, the second outer contour is located within the first outer contour, and the distance between the first outer contour and the second outer contour is less than or equal to 0.5 mm. Preferably, the extension length of the bent portion along the direction from the display portion to the binding portion ranges from 0.5mm to 2mm; Preferably, the dimension of the first support member along the second direction is greater than or equal to the dimension of the second support member along the second direction, and any two of the first direction, the second direction and the thickness direction of the display portion intersect.

5. The display module according to any one of claims 2-4, characterized in that, At least one of the protective elements is located on the light-emitting side of the display unit, and the protective element located on the light-emitting side of the display unit is constructed as a cover plate or part of a cover plate; the light-emitting side and the backlight side of the display unit are opposite sides in the thickness direction of the display unit.

6. The display module according to any one of claims 2-4, characterized in that, The number of protective components is multiple, and the multiple protective components include a first protective component and a second protective component, wherein the first protective component and the second protective component are respectively located on both sides of the display part along the thickness direction; When the display module is in a folded state, the display module located in the bending area is bent, the first protective member is located inside the display part, and the second protective member is located outside the display part; Preferably, the display module is configured as an inwardly folding display module, and when the display module is in the folded state, the first protective member is configured as at least a portion of the cover plate, and the second protective member is configured as a first support member; Alternatively, the display module is configured as an outward-folding display module, wherein when the display module is in the folded state, the first protective member is configured as a first support member, and the second protective member is configured as at least a portion of a cover plate; Preferably, the thickness of the first sub-part of the second protective member is less than the thickness of the first sub-part of the first protective member; Preferably, the thickness of the second sub-part of the second protective member is less than the thickness of the second sub-part of the first protective member; Preferably, the protective member has a groove on at least one side along the thickness direction of the display portion, and the depth of the groove in the second protective member is greater than the depth of the groove in the first protective member; Preferably, the angle between the bottom wall and the side wall of the groove of the second protective member is greater than the angle between the bottom wall and the side wall of the groove of the first protective member. Preferably, the dimension of the first sub-part of the second protective member along the first direction is larger than the dimension of the first sub-part of the first protective member along the first direction; Preferably, in the same protective member, the protective member includes a third sub-part, which is connected between the first sub-part and the second sub-part; the dimension of the third sub-part of the second protective member along the first direction is larger than the dimension of the third sub-part of the first protective member along the first direction; Preferably, the surface compressive stress of the first sub-part of the second protective member is greater than the surface compressive stress of the first sub-part of the first protective member; Preferably, the surface compressive stress of the second sub-part of the second protective member is greater than the surface compressive stress of the second sub-part of the first protective member; Preferably, the surface compressive stress of the third sub-part of the second protective member is greater than the surface compressive stress of the third sub-part of the first protective member.

7. The display module according to claim 6, characterized in that, In the same protective component, the groove is provided on one side along the thickness direction of the display portion; the groove of the first support member and the groove of the cover plate face the same direction, or... In the same protective component, the groove is provided on one side along the thickness direction of the display portion; the groove of the first support member and the groove of the cover plate face opposite directions; or, One of the first support member and the cover plate has the groove on one side along the thickness direction of the display part, and the other has the groove on both sides along the thickness direction of the display part.

8. The display module according to any one of claims 2-4, characterized in that, In the same protective component, grooves are provided on both sides of the protective component along the thickness direction of the display part. The grooves located on both sides of the protective component are defined as the first groove and the second groove, respectively. When the display module is in a folded state, the first groove is located on the inner side of the protective component, and the second groove is located on the outer side of the protective component. Preferably, the dimension of the bottom wall of the second groove along the first direction is greater than the dimension of the bottom wall of the first groove along the first direction; Preferably, the dimension of the groove sidewall of the second groove along the first direction is greater than the dimension of the groove sidewall of the first groove along the first direction; Preferably, the depth of the second groove is greater than the depth of the first groove; Preferably, the angle between the bottom wall and the side wall of the second groove is greater than the angle between the bottom wall and the side wall of the first groove.

9. The display module according to any one of claims 2-4, characterized in that, The protective member has a groove on at least one side along the thickness direction of the display portion. The display module includes at least one filling layer. At least one of the protective members is correspondingly disposed with the at least one filling layer. The filling layer contacts the corresponding protective member and is located at least within the groove of the corresponding protective member. Preferably, the elastic modulus of the filling layer is in the range of 100 kPa-2000 MPa; Preferably, the refractive index of the filling layer is in the range of 1.46-1.56; Preferably, in the corresponding protective member and the filling layer, the entire filling layer is located within the groove, and the side of the filling layer facing away from the protective member is recessed towards the protective member; Preferably, the thickness of the filling layer ranges from 10 μm to 40 μm; or, In the corresponding protective element and the filling layer, a portion of the filling layer covers the second sub-part, and the surface of the filling layer facing away from the protective element is planar; Preferably, the thickness of the filling layer corresponding to the groove is in the range of 60μm-250μm; Preferably, the thickness of the filling layer corresponding to the second sub-part is in the range of 10μm-50μm.

10. A display device, characterized in that, Includes the display module described in any one of claims 1-9 above.

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