A display module

Abstract

This disclosure provides a display module belonging to the field of display technology. The display module includes a display panel, a touch substrate located on the light-emitting side of the display panel, and a composite film layer located on the side of the display panel opposite to the light-emitting side. A support component is provided in the edge region of the touch substrate, and the support component is located on at least two opposite sides of the touch area of ​​the touch substrate. The support component connects the touch substrate and the composite film layer and defines an accommodating space, in which the display panel is located.

Description

Technical Field

[0001] This disclosure belongs to the field of display technology, and specifically relates to a display module. Background Technology

[0002] With the rapid development of display technology, Organic Light-Emitting Diode (OLED) display technology is gradually being adopted in medium and large-sized products. Televisions (TVs), touch-screen displays (TPCs), and laptops (NBs) are increasingly replacing traditional liquid crystal displays (LCDs) with OLED panels. The bezels of these display panels need to be minimized to ensure compatibility with different product models. However, due to the excessive bezels on the touch substrate, touch-sensitive surfaces are prone to cracking during display module manufacturing and overall assembly, leading to touch malfunctions. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art and to provide a display module.

[0004] The technical solution adopted to solve the technical problem of the present invention is a display module, which includes a display panel, a touch substrate located on the light-emitting side of the display panel, and a composite film layer located on the side of the display panel opposite to the light-emitting side; wherein, a support component is provided in the edge region of the touch substrate, and the support component is located on at least two opposite sides of the touch area of ​​the touch substrate; the support component connects the touch substrate and the composite film layer and defines an accommodating space, and the display panel is located within the accommodating space.

[0005] In some embodiments, the support component and the composite membrane layer are integrally formed.

[0006] In some embodiments, the support component and the composite membrane layer are integrally formed and form a U-shaped part.

[0007] In some embodiments, the touch substrate includes a substrate layer and a touch component disposed on the side of the substrate layer opposite to the display panel, wherein the support component and the substrate layer are integrally formed.

[0008] In some embodiments, the support component and the substrate layer are integrally formed and form a U-shaped part.

[0009] In some embodiments, the orthographic projection of the side of the support component away from the accommodating space onto the plane where the display panel is located falls on the outline of the orthographic projection of the touch substrate onto the plane where the display panel is located.

[0010] In some embodiments, the display module further includes a polarizer located on the side of the touch substrate opposite to the display panel, a cover plate located on the side of the polarizer opposite to the touch substrate, and a first adhesive layer for bonding the cover plate to the polarizer.

[0011] In some embodiments, the first adhesive layer covers the touch substrate.

[0012] In some embodiments, the display module further includes a second adhesive layer located between the display panel and the touch substrate, the second adhesive layer filling the gap between the display panel and the touch substrate in the accommodating space.

[0013] In some embodiments, the composite film layer includes a conductive heat dissipation layer, a buffer layer, and a third adhesive layer disposed sequentially along the direction close to the display panel. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of an exemplary display module.

[0015] Figure 2 This is a schematic diagram of the structure of a display module provided in an embodiment of the present disclosure;

[0016] Figure 3 This is a schematic diagram of another display module provided in an embodiment of the present disclosure;

[0017] Figure 4 for Figure 3 A schematic diagram of the composite membrane layer in the diagram;

[0018] Figure 5 for Figure 3 A schematic diagram of the bonding and alignment of the composite film layers in the diagram;

[0019] Figure 6 This is a schematic diagram of another display module provided in an embodiment of the present disclosure;

[0020] Figure 7 for Figure 6 A schematic diagram of the substrate layer in the middle;

[0021] Figure 8 for Figure 6 A schematic diagram of the bonding and alignment of the substrate layer.

[0022] The reference numerals in the attached figures are as follows: 10, display panel; 20, second adhesive layer; 30, touch substrate; 40, polarizer; 50, first adhesive layer; 60, cover plate; 70, composite film layer; 80, support component. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this disclosure, and not all of them. The components of the embodiments of this disclosure described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this disclosure provided in the accompanying drawings is not intended to limit the scope of the claimed disclosure, but merely represents selected embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the embodiments of this disclosure without inventive effort are within the scope of protection of this disclosure.

[0024] Unless otherwise defined, the technical or scientific terms used in this disclosure shall have the ordinary meaning understood by one of ordinary skill in the art to which this disclosure pertains. The terms “first,” “second,” and similar terms used in this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, the terms “an,” “a,” or “the,” and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms “including,” “comprising,” or “containing,” and similar terms mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. The terms “connected,” “linked,” or similar terms are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. The terms “upper,” “lower,” “left,” and “right,” etc., are used only to indicate relative positional relationships, and these relative positional relationships may change accordingly when the absolute position of the described objects changes.

[0025] In this disclosure, "multiple or several" refers to two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. The character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0026] The inventors discovered that the bezel of the display panel in a display module needs to be minimized to ensure compatibility with different product styles. However, due to the excessive bezel of the touch substrate, touch-induced cracks are easily generated during display module manufacturing and overall assembly, leading to touch failure and other problems. For example, because the development of flexible multi-layer on-cell (FMLOC) technology for medium and large-sized flexible OLED products is not yet complete, a film sensor solution (integrated touch substrate and polarizer) is generally used to fabricate display modules. However, even with the film sensor size minimized, the excessive bezel still exists, causing cracking issues during module production and overall assembly.

[0027] Figure 1 This is a schematic diagram of an exemplary display module, such as... Figure 1 As shown, the display module adopts a film sensor solution. The display module includes a display panel 10, and a second adhesive layer 20, a touch substrate 30, a polarizer 40, a first adhesive layer 50, a cover plate 60 arranged sequentially along the direction away from the light-emitting surface of the display panel 10, and a composite film layer 70 located on the side of the display panel 10 away from the light-emitting surface.

[0028] Specifically, the full name of polarizer 40 is polarizing filter, which can control the polarization direction of a specific light beam. When natural light passes through polarizer 40, light whose vibration direction is perpendicular to the transmission axis of polarizer 40 will be absorbed, and only polarized light whose vibration direction is parallel to the transmission axis of polarizer 40 will be transmitted. Figure 1 As shown, the polarizer 40 and the touch substrate 30 are supplied as a single piece and are the same size. The first adhesive layer 50 bonds the polarizer 40 to the cover plate 60, and the second adhesive layer 20 bonds the touch substrate 30 to the display panel 10. It should be noted that although the size of the touch substrate 30 and the polarizer 40 is made to an extremely small extent, they still exceed the distance of about 0.65 mm compared to the display panel 10. The first adhesive layer 50 needs to be designed to match the shape of the display panel 10, that is, the first adhesive layer 50 is the same size as the display panel 10. This will cause the touch substrate 30 and the polarizer 40 to be in a suspended state on the side closer to the first adhesive layer 50 and the side closer to the second adhesive layer 20, which will lead to cracking problems during the production of the display module and the assembly of the whole machine.

[0029] Therefore, this disclosure provides a display module. Figure 2 This is a schematic diagram of the structure of a display module provided in an embodiment of the present disclosure, such as... Figure 2As shown, the display module includes a display panel 10, a touch substrate 30 located on the light-emitting side of the display panel 10, and a composite film layer 70 located on the side of the display panel 10 away from the light-emitting side; wherein, a support component 80 is provided in the edge region of the touch substrate 30, and the support component 80 is located at least on two opposite sides of the touch area of ​​the touch substrate 30; the support component 80 connects the touch substrate 30 and the composite film layer 70 and defines an accommodating space, in which the display panel 10 is located.

[0030] It should be noted that the composite film layer 70 in this embodiment is actually a Super Clean Foam (SCF) composite film. The SCF composite film can buffer the stress acting on the display panel 10 and dissipate the heat generated when the display panel 10 is working, thus providing a certain degree of protection for the display panel 10.

[0031] Specifically, such as Figure 3 As shown, the display module in this embodiment is compared to... Figure 1 The display module shown includes an added support component 80, which is located at least on both opposite sides of the touch area of ​​the touch substrate 30 and connects the touch substrate 30 to the composite film layer 70. Simultaneously, the support component 80, the touch substrate 30, and the composite film layer 70 define an accommodating space within which the display panel 10 is located. With this configuration, the touch substrate 30 and the polarizer 40 are no longer suspended in mid-air on either the side closest to or furthest from the display panel 10, thus avoiding cracking issues during display module production and overall assembly.

[0032] In some embodiments, Figure 3 This is a schematic diagram of another display module provided in an embodiment of the present disclosure, as shown below. Figure 3 As shown, the support component 80 and the composite membrane layer 70 are integrally formed structures.

[0033] Specifically, in this embodiment, the support component 80 and the composite film layer 70 are set as an integral structure, which can fill the suspended positions of the touch substrate 30 and the polarizer 40. This ensures the feasibility of the design and process, effectively prevents the crack risk of the process and the assembly of the whole machine, and simplifies the manufacturing process and saves production costs.

[0034] In some embodiments, Figure 4 for Figure 3 A schematic diagram of the composite membrane layer in the diagram; Figure 5 for Figure 3 A schematic diagram of the bonding and alignment of the composite film layers is shown in the figure. Figure 4 and Figure 5 As shown, the support component 80 and the composite membrane layer 70 are integrally formed and form a U-shaped part.

[0035] Specifically, in this embodiment, the support component 80 and the composite film layer 70 are integrally formed and form a U-shape. In the following description, the composite film layer 70 is used instead of the integrally formed support component 80 and composite film layer 70. The composite film layer 70 is located at least on two opposite sides of the touch area of ​​the touch substrate 30, and its size actually exceeds the size of the display panel 10 and extends to the edge area of ​​the touch substrate 30 and the polarizer 40.

[0036] Specifically, in the display module provided in this embodiment, the composite film layer 70 is a U-shaped part. When it is bonded, it can fill the suspended part of the touch substrate 30 and the polarizer 40, thereby ensuring the feasibility of design and process while effectively preventing the crack risk of process and whole assembly.

[0037] It should be noted that, as Figure 4 As shown, the composite film layer 70 also includes a release film. During the application process, the device adsorbs the surface where the release film is located, such as... Figure 5 As shown, the irregularly shaped position of the composite film layer 70 (i.e., the position of the support component 80) is not at the four corners of the display module. When the equipment transfers the surface where the release film is adsorbed, the equipment uses a four-corner identification method for alignment. Therefore, during the overall attachment process of the display module, the U-shaped design of the composite film layer 70 does not affect the overall attachment. The display module in this embodiment of the present disclosure effectively prevents the risk of cracking during the process and assembly of the entire unit while ensuring design and process feasibility.

[0038] In some embodiments, Figure 6 This is a schematic diagram of another display module provided in an embodiment of the present disclosure, as shown below. Figure 6 As shown, the touch substrate 30 includes a substrate layer and a touch component disposed on the side of the substrate layer away from the display panel 10. The support component 80 is integrally formed with the substrate layer.

[0039] Specifically, in this embodiment, the support component 80 and the substrate layer are integrated into a single structure, which can fill the suspended positions of the touch substrate 30 and the polarizer 40. This ensures design and process feasibility while effectively preventing crack risks in the process and assembly of the whole machine. At the same time, it can simplify the manufacturing process and save production costs.

[0040] In some embodiments, Figure 7 for Figure 6 A schematic diagram of the substrate layer in the diagram. Figure 8 for Figure 6 A schematic diagram of the bonding and alignment of the substrate layer in the diagram is shown below. Figure 7 and Figure 8 As shown, the support component 80 and the substrate layer are integrally molded and form a U-shaped part.

[0041] Specifically, in this embodiment, the support component 80 and the substrate layer are integrally formed and form a U-shaped part. In the following description, the substrate layer is used instead of the integrally formed support component 80 and substrate layer. The substrate layer is located at least on both opposite sides of the touch area of ​​the touch substrate 30, and its size actually exceeds the size of the display panel 10 and extends to the edge area of ​​the touch substrate 30 and the polarizer 40.

[0042] Specifically, in the display module provided in this embodiment, the substrate layer is a U-shaped part. When it is bonded, it can fill the suspended part of the touch substrate 30 and the polarizer 40, thereby ensuring the feasibility of design and process while effectively preventing the crack risk of process and whole assembly.

[0043] It should be noted that, as Figure 7 As shown, the substrate layer is a U-shaped part, which is actually recessed towards the side closer to the display panel 10, contacting the composite film layer 70. The composite film layer 70 extends outward to the same width as the touch substrate 30 and the polarizer 40. This arrangement can fill the suspended positions of the touch substrate 30 and the polarizer 40, thereby ensuring design and process feasibility while effectively preventing crack risks in the process and overall assembly. At the same time, this arrangement can enhance the impact resistance of the touch substrate 30 and the polarizer 40.

[0044] Specifically, such as Figure 7 As shown, the composite film layer 70 also includes a release film. During the application process, the device adsorbs the surface where the release film is located, such as... Figure 8 As shown, the irregularly shaped positions of the substrate layer (i.e., the positions of the support components 80) are not located at the four corners of the display module. When the equipment transfers and adsorbs the release film, the equipment uses a four-corner recognition method for alignment identification. Therefore, during the overall attachment process of the display module, the U-shaped irregular design of the substrate layer does not affect the overall attachment. The release film at the four sides of the display module is not irregularly shaped. This design ensures the recognition effect of the machine's alignment marks. During the attachment process, the substrate layer can fill the suspended positions of the touch substrate 30 and the polarizer 40, enabling normal attachment of the display module. The display module in this embodiment effectively prevents the risk of cracking during process and overall assembly while ensuring design and process feasibility.

[0045] In some embodiments, such as Figure 8 As shown, the orthographic projection of the side of the support component 80 away from the accommodating space onto the plane where the display panel 10 is located falls on the outline of the orthographic projection of the touch substrate 30 onto the plane where the display panel 10 is located.

[0046] Specifically, in this embodiment, by setting the orthographic projection of the side of the support component 80 away from the accommodating space onto the plane of the display panel 10, which falls on the outline of the orthographic projection of the touch substrate 30 onto the plane of the display panel 10, it is further ensured that the support component 80 can fill the suspended portion of the touch substrate 30 and the polarizer 40, thereby effectively preventing the risk of cracking in the process and assembly while ensuring design and process feasibility.

[0047] In some embodiments, such as Figure 3 and Figure 6 As shown, the display module also includes a polarizer 40 located on the side of the touch substrate 30 away from the display panel 10, a cover plate 60 located on the side of the polarizer 40 away from the touch substrate 30, and a first adhesive layer 50 for bonding the cover plate 60 and the polarizer 40.

[0048] Specifically, in the embodiments of this disclosure, the materials of the first adhesive layer 50 include, but are not limited to, optically clear adhesive (OCA), electronic adhesives, such as ultraviolet (UV) curing adhesives and waterproof adhesives. This disclosure does not impose any limitations on these materials, as long as the technical effects of this disclosure can be achieved.

[0049] Specifically, in the embodiments of this disclosure, the cover plate 60 protects the display module to make the display module have stronger impact resistance and improve its environmental reliability. Therefore, the material of the cover plate 60 is not limited, as long as it can achieve the technical effect of this disclosure. For example, it can be cover glass (CG).

[0050] In some embodiments, such as Figure 3 As shown, the first adhesive layer 50 covers the touch substrate 30.

[0051] Specifically, in the embodiments of this disclosure, such as Figure 3 As shown, when the support component 80 and the composite film layer 70 are integrally formed, the first adhesive layer 50 can be the same size as the touch substrate 30 and the polarizer 40, and the first adhesive layer 50 covers the touch substrate 30 and the polarizer 40. After the composite film layer 70 is attached to the display module, it is cured to ensure that the first adhesive layer 50 is completely bonded to the polarizer 40 and the cover plate 60.

[0052] Furthermore, in this embodiment, since the support component 80 and the composite film layer 70 are integrally formed, when the composite film layer 70 is attached to the display module, it can fill the suspended portions of the touch substrate 30 and the polarizer 40. During the attachment process of the composite film layer 70, any unattached portions of the first adhesive layer 50 can be compacted using rollers on one side of the composite film layer 70. Finally, the first adhesive layer 50 is cured, thus completing the attachment process of the entire display module. This arrangement ensures that both the side of the touch substrate 30 and the side of the polarizer 40 closest to the display panel 10 and the side furthest from the display panel 10 are filled, further improving the impact resistance of the display module.

[0053] In some embodiments, such as Figure 6 As shown, the first adhesive layer 50 covers the touch substrate 30.

[0054] Specifically, in the embodiments of this disclosure, such as Figure 6 As shown, when the support component 80 and the substrate layer of the touch substrate 30 are integrally formed, the first adhesive layer 50 can be the same size as the touch substrate 30 and the polarizer 40, and the first adhesive layer 50 covers the touch substrate 30 and the polarizer 40. After the substrate layer is attached to the display module and then cured, it can be ensured that the first adhesive layer 50 is completely bonded to the polarizer 40 and the cover plate 60.

[0055] Furthermore, in this embodiment, since the support component 80 and the substrate layer of the touch substrate 30 are integrally formed, when the substrate layer is attached to the display module, the suspended portion of the touch substrate 30 and the polarizer 40 can be filled. With this configuration, the first adhesive layer 50 can more firmly bond the polarizer 40 and the cover plate 60, eliminating any gaps. Finally, the first adhesive layer 50 is cured to complete the entire attachment process of the display module. This configuration ensures that both the side of the touch substrate 30 and the side of the polarizer 40 closest to the display panel 10 and the side away from the display panel 10 are filled, further improving the impact resistance of the display module.

[0056] In some embodiments, such as Figure 3 and Figure 6 As shown, the display module also includes a second adhesive layer 20 located between the display panel 10 and the touch substrate 30, the second adhesive layer 20 filling the gap between the display panel 10 and the touch substrate 30 in the accommodating space.

[0057] Specifically, in this embodiment of the disclosure, when the support component 80 is integrally formed with the composite film layer 70, such as Figure 3As shown, the composite film layer 70 and the touch substrate 30 define an accommodating space, within which the display panel 10 is located. The second adhesive layer 20 fills the gap between the display panel 10 and the touch substrate 30 within the accommodating space, effectively preventing crack risks during process and assembly while ensuring design and manufacturing feasibility.

[0058] Specifically, in this embodiment of the disclosure, when the support component 80 is integrally formed with the substrate layer of the touch substrate 30, such as Figure 6 As shown, the substrate layer and composite film layer 70 of the touch substrate 30 define an accommodating space, within which the display panel 10 is located. The second adhesive layer 20 fills the gap between the display panel 10 and the touch substrate 30 within the accommodating space, effectively preventing crack risks during process and assembly while ensuring design and manufacturing feasibility.

[0059] In some embodiments, the composite film layer 70 includes a conductive heat dissipation layer, a buffer layer, and a third adhesive layer disposed sequentially along the direction close to the display panel 10.

[0060] Specifically, in this embodiment, the composite film layer 70 can buffer the stress acting on the display component and dissipate the heat generated during operation, thus providing a certain degree of protection for the display component. The conductive heat dissipation layer is used for heat dissipation and conductivity of the display module. The materials of the conductive heat dissipation layer include, but are not limited to, metals, such as copper. The buffer layer buffers stress, and the materials of the buffer layer include, but are not limited to, foam. The materials of the third adhesive layer include, but are not limited to, optically clear adhesive (OCA), electronic adhesives, such as ultraviolet (UV) curing adhesives and waterproof adhesives. This disclosure does not impose any limitations on these aspects, as long as the technical effects of this disclosure can be achieved.

[0061] It is understood that the above embodiments are merely exemplary implementations used to illustrate the principles of the present invention, and the present invention is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and essence of the present invention, and these modifications and improvements are also considered to be within the scope of protection of the present invention.

Claims

1. A display module, comprising a display panel, a touch substrate located on the light-emitting side of the display panel, and a composite film layer located on the side of the display panel opposite to the light-emitting surface; wherein, A support component is provided at the edge region of the touch substrate, and the support component is located at least on two opposite sides of the touch area of ​​the touch substrate; the support component connects the touch substrate to the composite film layer and defines an accommodating space, and the display panel is located within the accommodating space; The touch substrate includes a substrate layer and a touch component disposed on the substrate layer on the side opposite to the display panel; The support component and the substrate layer are integrally formed.

2. The display module according to claim 1, wherein, The support component and the substrate layer form a U-shaped part.

3. The display module according to claim 1 or 2, wherein, The orthographic projection of the side of the support component away from the accommodating space onto the plane where the display panel is located falls on the outline of the orthographic projection of the touch substrate onto the plane where the display panel is located.

4. The display module according to claim 1 or 2, wherein, It also includes a polarizer located on the side of the touch substrate opposite to the display panel, a cover plate located on the side of the polarizer opposite to the touch substrate, and a first adhesive layer for bonding the cover plate to the polarizer.

5. The display module according to claim 4, wherein, The first adhesive layer covers the touch substrate.

6. The display module according to claim 1 or 2, wherein, It also includes a second adhesive layer located between the display panel and the touch substrate, the second adhesive layer filling the gap between the display panel and the touch substrate in the accommodating space.

7. The display module according to claim 1 or 2, wherein, The composite film layer includes a conductive heat dissipation layer, a buffer layer, and a third adhesive layer arranged sequentially along the direction close to the display panel.

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