Display screen and electronic device

Abstract

The application discloses a display screen and electronic equipment, and belongs to the technical field of display equipment. The display screen comprises a cover plate, a display assembly, a support and a buffer assembly; the cover plate and the display assembly are stacked along the thickness direction of the display screen; the display assembly and the support are located on the same side of the cover plate, and the support at least partially surrounds the display assembly; and the buffer assembly is located between the support and the display assembly. The display screen and the electronic equipment disclosed by the application have obviously improved screen anti-falling capability.

Description

Technical Field

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

[0002] Hard-screen OLEDs (Organic Light-Emitting Diodes) are typically encapsulated using laser sintering (Frit) technology. Frit technology usually uses a special glass powder as "glue" to fuse the upper and lower glass pieces of the screen together through laser heating, thereby forming a sealed space that protects the internal precision components.

[0003] However, displays packaged using Frit technology generally have poor drop resistance. This is because, on the one hand, during the rapid cooling process after high-temperature laser sintering, the Frit area is prone to retaining large internal stress. When the device is dropped or subjected to external impact, this stress is released instantly, leading to encapsulation failure and local cracks. This allows moisture and oxygen to penetrate into the OLED screen, causing water and oxygen corrosion and resulting in the failure of the EL light-emitting material. On the other hand, taking a mobile phone as an example, the impact force of the device being dropped is converted into a stress wave, causing significant deformation of the cover plate. The cover plate further pulls the encapsulation layer and LTPS layer, forming an up-and-down wave swing. This shock wave is blocked and concentrated in the Frit area, instantly impacting the Frit area and ultimately easily leading to breakage. Utility Model Content

[0004] This application provides a display screen and an electronic device that can improve the drop resistance of the display screen.

[0005] The technical solution described in this application is as follows: This application provides a display screen, which includes a cover plate, a display component, a bracket, and a buffer component; The cover plate and the display component are stacked along the thickness direction of the display screen; The display component and the bracket are located on the same side of the cover plate, and the bracket at least partially surrounds the display component; The buffer assembly is located between the bracket and the display assembly.

[0006] The display screen provided in this application has a buffer component between the bracket and the display assembly. The buffer component can absorb the impact force when the display screen is dropped or subjected to impact, thereby slowing down or even eliminating the speed and energy of the impact force transmitted to the Frit area, thus significantly improving the drop resistance of the display screen.

[0007] In some possible solutions, along the thickness direction of the display screen, the bracket has a support portion located on the side of the display assembly away from the cover plate; At least a portion of the buffer assembly is located between the display assembly and the support portion of the bracket.

[0008] By adopting the above arrangement, the buffer assembly can absorb and disperse the impact force in the main transmission direction and path of the impact force when the equipment is dropped or subjected to impact, thereby protecting the display assembly. Moreover, at this location, the buffer assembly, bracket, and display assembly all have surface contact, which can better disperse pressure and improve the sealing effect.

[0009] In some possible embodiments, the buffer assembly includes an energy-absorbing layer and a surface functional layer, the surface functional layer being laminated to at least a portion of the surface of the energy-absorbing layer and located between the energy-absorbing layer and the support, the surface functional layer being used to achieve or reinforce a sealing connection between the energy-absorbing layer and the support.

[0010] By adopting the above arrangement, while reducing and eliminating external impact and protecting the display components, the surface functional layer also forms an effective sealing barrier at the junction of the buffer components and the bracket, preventing the passage of media such as water, vapor, and dust. This avoids water and oxygen corrosion caused by water vapor and oxygen intruding into the OLED screen, thereby preventing the failure of the EL light-emitting material.

[0011] In some possible solutions, the energy-absorbing layer is foam.

[0012] By adopting the above arrangement, a relatively ideal cushioning effect is achieved at a lower cost. Moreover, the foam assembly process is simple and easy to operate.

[0013] In some possible embodiments, the foam has a 25% compressive modulus greater than 0.17 MPa in the direction of its minimum elastic modulus.

[0014] By adopting the above arrangement, the anisotropic characteristics that the foam may have are fully considered, thereby ensuring the reliability of the foam in terms of cushioning, support and sealing.

[0015] In some possible solutions, the foam is a semi-open, semi-closed foam.

[0016] By adopting the above arrangement, semi-open and semi-closed foam can provide soft compressibility and energy absorption through the open-cell structure, and can also provide reliable resilience and sealing through the closed-cell structure, thus meeting the needs in cushioning, sealing and other aspects.

[0017] In some possible solutions, the surface energy of the surface functional layer is higher than that of the energy-absorbing layer.

[0018] By adopting the above arrangement, the surface functional layer can provide a reliable bonding interface between the support and the energy-absorbing layer, thereby facilitating an effective sealing effect and ensuring the structural integrity, stability and protective performance of the display screen during long-term use.

[0019] In some possible solutions, the surface functional layer includes a PC support or a PET support.

[0020] By adopting the above arrangement, PC or PET supports can be used to provide good structural support for the energy-absorbing layer, so that the buffer assembly has both buffering and local support effects.

[0021] In some possible embodiments, the surface functional layer further includes an ink layer coated on the PC support or PET support, the surface energy of which is higher than the surface energy of the PC support or PET support.

[0022] By adopting the above arrangement, the surface energy of the buffer component can be significantly enhanced by the ink layer, thereby greatly improving the connection and sealing effect between the buffer component and the bracket and display component at the joint surface.

[0023] This application also provides an electronic device, which includes the display screen described in the preceding aspect.

[0024] The electronic device of this application uses the display screen of this application and has all the beneficial technical effects of all embodiments herein. Therefore, the screen of the electronic device of this application has better drop resistance and improved reliability. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying 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.

[0026] Figure 1 This is a schematic diagram of the structure of a display screen provided in an embodiment of this application; Figure 2 This is a partial structural cross-sectional view of a display screen provided in an embodiment of this application; Figure 3 This is a schematic diagram of the structure of a buffer component provided in an embodiment of this application.

[0027] The reference numerals in the figure are respectively: 1. Cover plate; 2. Display components; 3. Bracket; 31. Support component; 4. Buffer component; 41. Energy absorption layer; 42. Surface functional layer. Detailed Implementation

[0028] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0029] In the description of this application, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the appendix. Figure 1 The orientations or positional relationships shown are for the purpose of facilitating and simplifying the description of this application, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0030] Unless otherwise defined, all technical terms used in the embodiments of this application have the same meaning as commonly understood by one of ordinary skill in the art.

[0031] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0032] This application provides a display screen, the structure of which is as follows: Figure 1 and Figure 2 As shown, where Figure 1 The back of the display is shown. Figure 2 The cross-sectional structure of the display screen is shown.

[0033] like Figure 1 and Figure 2 As shown, the display screen provided in this embodiment includes a cover plate 1, a display component 2, a bracket 3, and a buffer component 4. The cover plate 1 and the display component 2 are stacked along the thickness direction of the display screen; the display component 2 and the bracket 3 are located on the same side of the cover plate 1, and the bracket 3 at least partially surrounds the display component 2; the buffer component 4 is located between the bracket 3 and the display component 2.

[0034] In some embodiments, the cover plate 1 can be a glass cover plate 1 (CG, Cover Glass), which has good light transmission. At the same time, the cover plate 1 also needs to have good hardness and scratch resistance to protect the internal display components 2.

[0035] In some embodiments, the display component 2 may include an OCA (Optically Clear Adhesive) layer, a POL (Polarizer) layer, an encape (Encapsulation) layer, an LTPS (Low Temperature Poly-Silicon) layer, and an SCF (Super Clean Foam) composite film layer, which are sequentially stacked along a direction away from the cover plate 1. The Frit region is located between the encape layer and the LTPS layer.

[0036] In some embodiments, the stent 3 may be an LIPO (Low Injection Pressure Over-molding) stent 3 made of resin material.

[0037] The display screen provided in this application has a display component 2 installed by a bracket 3. The bracket 3 can provide support and protection for the display component 2 and the cover plate 1, which helps to improve the structural compactness of the display screen and realize the ultra-narrow bezel design of the display screen.

[0038] Furthermore, the display screen provided in this application has a buffer component 4 between the bracket 3 and the display component 2. The buffer component 4 can absorb the impact force when the display screen is dropped or impacted, thereby slowing down or even eliminating the speed and energy of the impact force transmitted to the Frit area, thus significantly improving the drop resistance of the display screen.

[0039] In some embodiments, such as Figure 2 As shown, along the thickness direction of the display screen, the bracket 3 has a support portion 31 located on the side of the display assembly 2 away from the cover plate 1. At least a portion of the buffer assembly 4 is located between the display assembly 2 and the support portion 31 of the bracket 3.

[0040] In one example, when the display is in Figure 2 In the buckled position shown, the bracket 3 and the display component 2 are located above the cover plate 1, and the edge of the bracket 3 can be flush with the edge of the cover plate 1. The display component 2 is mounted on the bracket 3, as shown. Figure 2 As shown, the bracket 3 at least partially surrounds the display component 2; that is, the bracket 3 may surround the display component 2 in the entire circumferential direction, or it may only surround the display component 2 in a partial area of ​​the circumferential direction, for example, see [reference needed]. Figure 2The bracket 3 surrounds and wraps around the side of the display component 2, as well as a portion of the display component 2 facing away from the cover plate 1. The portion of the bracket 3 located on the side of the display component 2 away from the cover plate 1 is referred to as the support portion 31.

[0041] Generally, when an electronic device is dropped, the impact force is mainly transmitted along the thickness direction of the display screen, especially acting on the Frit area along this direction. By adopting the above arrangement, the buffer component 4 can absorb and disperse the impact force in the main transmission direction and path when the device is dropped or impacted, thereby protecting the display component 2, especially protecting the Frit area from impact, and thus avoiding stress release and cracking in the Frit area.

[0042] Furthermore, on the side of the display component 2 away from the cover plate 1, the display component 2 and the buffer component 4, as well as the buffer component 4 and the bracket 3, adopt a surface contact fit, which can better distribute the pressure and ensure the sealing effect.

[0043] In some embodiments, such as Figure 3 As shown, the buffer assembly 4 includes an energy-absorbing layer 41. The buffer assembly 4 absorbs and dissipates impact forces through the energy-absorbing layer 41. Generally, the energy-absorbing layer 41 is made of energy-absorbing materials, such as foam, cushioning pads, viscoelastic adhesives, etc. In some embodiments of this application, the energy-absorbing layer 41 is made of foam, which is relatively soft, low in cost, and easy to install.

[0044] In some embodiments, the foam used in the energy-absorbing layer 41 has a 25% compressive modulus greater than 0.17 MPa in its minimum elastic modulus direction. Generally, the stiffness of a foam material may vary depending on the direction of compression (i.e., anisotropy), depending on its manufacturing process and cell structure. The minimum elastic modulus direction refers to the direction in which the foam is most easily compressed. In this embodiment, the compressive stress corresponding to 25% compression in the minimum elastic modulus direction is defined, which is equivalent to setting a clear lower limit for the mechanical strength of the foam. This ensures that the foam meets minimum strength requirements even in the weakest and softest direction during application, thereby guaranteeing the reliability and durability of the display screen and electronic devices.

[0045] In some embodiments, the foam is a semi-open / semi-closed foam. Semi-open / semi-closed foam provides soft compressibility and energy absorption through its open-cell structure, and reliable resilience and sealing through its closed-cell structure, thus simultaneously meeting the needs for cushioning and sealing. Of course, in other embodiments of this application, the foam may also be an open-cell or closed-cell foam, depending on the design requirements.

[0046] In some embodiments, see continue to see Figure 3 The buffer assembly 4 also includes a surface functional layer 42 composited on at least a portion of the surface of the energy-absorbing layer 41. The surface functional layer 42 is located at least between the energy-absorbing layer 41 and the support 3, and is used to achieve or strengthen the sealed connection between the energy-absorbing layer 41 and the support 3.

[0047] Energy-absorbing materials such as foam have low surface energy, making it difficult for adhesives to fully wet and spread on their surface. This hinders the formation of effective mechanical interlocking and chemical bonding. Furthermore, the porous structure of foam absorbs adhesive, resulting in insufficient adhesive volume and an inability to form a continuous adhesive layer. These factors contribute to the poor adhesion of foam; for example, mobile phone screens are prone to peeling off when dropped.

[0048] To address this issue, in this embodiment, a surface functional layer 42 is coated on the foam surface, which enhances the connection and sealing with the bracket 3. The surface energy of the surface functional layer 42 is higher than that of the energy-absorbing layer 41. Therefore, the buffer assembly 4 can be connected to the bracket 3 through the surface functional layer 42. The surface functional layer 42 provides a reliable interface between the bracket 3 and the energy-absorbing layer 41, facilitating consecutive connection and effective sealing, thereby ensuring the structural integrity, stability, and protective performance of the display screen during long-term use.

[0049] In some embodiments, the surface functional layer 42 includes a PC support or a PET support. The PC support or PET support provides mechanical strength and stability, preventing the surface functional layer 42 from stretching or tearing under stress.

[0050] In some embodiments, the surface functional layer 42 further includes an ink layer coated on a PC support or a PET support, wherein the surface energy of the ink layer is higher than that of the PC support or the PET support. By adopting the above arrangement, the surface energy of the surface functional layer 42 can be further enhanced by the ink layer, which greatly improves the connection and sealing effect between the buffer assembly 4 and the bracket 3 and the display assembly 2 at the joint surface.

[0051] Therefore, by employing the energy-absorbing layer 41, this embodiment not only reduces and eliminates external impact and protects the display component 2, but also utilizes the surface functional layer 42 to form an effective sealing barrier at the junction of the buffer component 4 and the bracket 3, preventing the passage of media such as water, vapor, and dust, thus avoiding water and oxygen corrosion caused by water vapor and oxygen intruding into the OLED screen, and thereby preventing the failure of the EL light-emitting material.

[0052] This application also provides an electronic device, which includes the display screen described in the above embodiments.

[0053] The electronic device has a display-based display function, and in some examples, the electronic device can be a mobile phone, tablet, smartwatch, smart bracelet, laptop, or other electronic device with display function.

[0054] The electronic device of this application uses the display screen of this application and has all the beneficial technical effects of all embodiments herein. Therefore, the electronic device of this application has better drop resistance and improved reliability.

[0055] It should be noted that, in the description of this application, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0056] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0057] In this article, "several" and "at least one" refer to one or more, while "multiple" and "at least two" refer 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.

[0058] In this application, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" of the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0059] In the description of this specification, the references to the terms "certain embodiments", "one embodiment", "some embodiments", "illustrative embodiment", "example", "specific example", or "some examples" refer to specific features, structures, materials, or characteristics described in connection with the embodiments or examples that are included in at least one embodiment or example of this application.

[0060] The above are merely embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the principles of this application should be included within the protection scope of this application.

Claims

1. A display screen, characterized in that, The display screen includes a cover plate (1), a display component (2), a bracket (3), and a buffer component (4); The cover plate (1) and the display component (2) are stacked along the thickness direction of the display screen; The display component (2) and the bracket (3) are located on the same side of the cover plate (1), and the bracket (3) at least partially surrounds the display component (2). The buffer component (4) is located between the bracket (3) and the display component (2).

2. The display screen according to claim 1, characterized in that, Along the thickness direction of the display screen, the bracket (3) has a support portion (31) located on the side of the display assembly (2) away from the cover plate (1). At least a portion of the buffer assembly (4) is located between the display assembly (2) and the support portion (31) of the bracket (3).

3. The display screen according to claim 2, characterized in that, The buffer assembly (4) includes an energy-absorbing layer (41) and a surface functional layer (42). The surface functional layer (42) is composited on at least a portion of the surface of the energy-absorbing layer (41) and is located between the energy-absorbing layer (41) and the support (3). The surface functional layer (42) is used to achieve or reinforce the sealed connection between the energy-absorbing layer (41) and the support (3).

4. The display screen according to claim 3, characterized in that, The energy-absorbing layer (41) is foam.

5. The display screen according to claim 4, characterized in that, The foam has a 25% compression modulus greater than 0.17 MPa in the direction of its minimum elastic modulus.

6. The display screen according to claim 4 or 5, characterized in that, The foam is a semi-open, semi-closed foam.

7. The display screen according to claim 3, characterized in that, The surface energy of the surface functional layer (42) is higher than that of the energy-absorbing layer (41).

8. The display screen according to claim 7, characterized in that, The surface functional layer (42) includes a PC support or a PET support.

9. The display screen according to claim 8, characterized in that, The surface functional layer (42) further includes an ink layer coated on the PC support or PET support, wherein the surface energy of the ink layer is higher than that of the PC support or PET support.

10. An electronic device, characterized in that, The electronic device includes the display screen according to any one of claims 1-9.

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