Display device

Abstract

The utility model discloses display equipment, which relates to the field of electronic equipment, and comprises a casing middle frame, a display screen and a cover plate, a buffer layer with an integrated structure is arranged between the casing middle frame and the display screen, a deformation cavity is arranged in the buffer layer, and when the display screen is subjected to external force, the deformation cavity deforms; according to the utility model, the casing middle frame and the display screen are connected together by adopting the buffer layer with an integrated structure, when the display screen is subjected to external force, the deformation cavity in the buffer layer deforms and supports the display screen, so that the deformation of the display screen is reduced, meanwhile, part of impact force borne by the display screen can be absorbed, the damage to the display screen is reduced to the greatest extent, and the service life of the display screen is prolonged. According to the display device, the display screen is prevented from being broken due to deformation or strong external force, the impact resistance of the display device is remarkably improved, the buffer layer is simple in structure, capable of being integrally manufactured, low in cost and simple in assembly process, the production cost is reduced, and the product competitiveness is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic equipment, in particular to a display device. Background Art

[0002] At present, smart phones and smart watches often have certain strength requirements, such as three-point bending or falling ball. However, after customers test the whole device, the protective cover on the surface of the electronic device is not broken, but the LCD screen is broken, resulting in abnormal display. This is because the center point of the electronic device will deform inward at the moment of force. The surface cover has good toughness and strength due to reinforcement, and it does not break after deformation. However, the strength of the LCD screen is much weaker than that of the surface cover glass, and the thickness is also thinner, which causes the display screen to be unable to withstand large impacts and deformation.

[0003] Patent application No. 202210590702.4 discloses a display device, an electronic device and a middle frame, which include a display panel; a first buffer layer, the first buffer layer includes multiple buffer structures, and the multiple buffer structures are distributed on the backlight side of the display panel; the buffer structure includes a first buffer portion and a second buffer portion, and there is a accommodating space between the first buffer portion and the second buffer portion, and the accommodating space extends in a direction perpendicular to the display panel; a second buffer layer, the second buffer layer includes multiple protruding structures, and the multiple protruding structures are respectively arranged corresponding to the multiple buffer structures. The protruding structures extend into the accommodating spaces of the corresponding buffer structures, and the protruding structures are engaged between the first buffer portion and the second buffer portion on both sides of the accommodating space, and there is a buffer space between the protruding structure and the display panel at the top of the accommodating space. This structure can effectively reduce the external force impact on the display panel and improve the impact resistance of the display device. However, the structure adopts a first buffer layer and a second buffer layer to form a buffer mechanism. During assembly, the protruding structure needs to be clamped between the first buffer part and the second buffer part of the accommodating space. Not only is the process more complicated, but the requirements for the fitting accuracy are also high, the assembly is difficult, and the production cost is greatly increased, which is not conducive to product competition. Therefore, the utility model discloses a display device to solve the above problems. Utility Model Content

[0004] Based on this, it is necessary to provide a display device to address the above technical problems, which uses an integrated buffer layer to connect the middle frame of the casing and the display screen. When the display screen is subjected to external force, the deformation cavity in the buffer layer is deformed and supports the display screen to reduce the deformation of the display screen. At the same time, it can absorb part of the impact force on the display screen, minimize the damage to the display screen, and avoid the display screen from being broken due to deformation or strong external force, which significantly improves the impact resistance of the display device. The buffer layer has a simple structure and can be prepared in one piece with low cost and simple assembly process, which reduces production costs and improves product competitiveness.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A display device comprises a casing middle frame, a display screen and a cover plate, wherein a buffer layer of an integral structure is arranged between the casing middle frame and the display screen, wherein a deformation cavity is arranged in the buffer layer, and when the display screen is subjected to external force, the deformation cavity is deformed.

[0007] As a preferred implementation of the display device provided by the utility model, the buffer layer is arranged in the middle of the display screen.

[0008] As a preferred embodiment of the display device provided by the utility model, the buffer layer is a foam board, and micropores are arranged in the foam board, and all the micropores form a deformation cavity.

[0009] As a preferred embodiment of the display device provided by the utility model, the buffer layer is an elastic plate, and the elastic plate is provided with a plurality of through holes, the through holes are arranged along the plane direction of the elastic plate, and all the through holes form a deformation cavity.

[0010] As a preferred embodiment of the display device provided by the present invention, the shape of the through hole is one of ellipse, circle, triangle or rectangle.

[0011] As a preferred implementation of the display device provided by the utility model, the through hole is in the shape of an ellipse, and the major axis of the ellipse is arranged along the plane direction of the elastic plate.

[0012] As a preferred implementation of the display device provided by the utility model, the through holes are arranged at equal intervals and the interval is 1-3 mm.

[0013] As a preferred embodiment of the display device provided by the utility model, the buffer layer includes an upper panel and a lower panel connected as one body, the upper panel is provided with a plurality of corner grooves, the lower panel is provided with a plurality of protruding structures, the protruding structures are matched with the corner grooves and a buffer cavity is formed between the protruding structures and the corner grooves, and all the buffer cavities constitute a deformation cavity.

[0014] As a preferred implementation of the display device provided by the utility model, the upper panel and the lower panel are connected via an elastic portion, and the elastic portion is located on both sides of the buffer cavity.

[0015] As a preferred implementation of the display device provided by the utility model, the surface of the protruding structure is arranged in parallel with the surface on the corresponding side of the corner groove.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] The display device provided by the utility model adopts a buffer layer of an integrated structure to connect the middle frame of the casing and the display screen. When the display screen is subjected to external force, the deformation cavity in the buffer layer is deformed and supports the display screen, thereby reducing the deformation of the display screen and absorbing part of the impact force exerted on the display screen, thereby minimizing the damage to the display screen and avoiding the display screen from being broken due to deformation or strong external force, thereby significantly improving the impact resistance of the display device. The buffer layer has a simple structure and can be prepared in an integrated manner with low cost and simple assembly process, thereby reducing production costs and improving product competitiveness. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the scheme in the utility model, a brief introduction is given below to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 A schematic diagram of the structure of a display device according to an embodiment of the present invention;

[0020] Figure 2 A schematic diagram of the structure of a display device according to a second embodiment of the present invention;

[0021] Figure 3 A schematic diagram of the structure of a display device according to a third embodiment of the present invention;

[0022] Figure 4 This is a schematic diagram of the buffer layer structure in Example 3 of the display device provided by the utility model.

[0023] The markings in the figure are as follows:

[0024] 1. Casing middle frame; 2. Display screen; 3. Cover plate; 4. Buffer layer; 5. Through hole; 6. Upper panel; 7. Lower panel; 8. Corner groove; 9. Raised structure; 10. Buffer cavity; 11. Elastic part. DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0026] As described in the background technology, current smart phones and smart watches often have certain requirements for strength, such as three-point bending or falling balls. However, after customers test the entire device, the protective cover on the surface of the electronic device often does not break, but the LCD screen breaks, resulting in abnormal display. This is because the center point of the electronic device will deform inward at the moment of force, and the surface cover has good toughness and strength due to reinforcement, and it does not break after deformation. However, the strength of the LCD screen is much weaker than that of the surface cover glass, and the thickness is also thinner, which causes the display screen to be unable to withstand large impacts and deformation; the existing display device uses a first buffer layer and a second buffer layer to form a buffer mechanism. During assembly, the raised structure needs to be clamped between the first buffer part and the second buffer part of the accommodating space. Not only is the process more complicated, but the requirements for fitting accuracy are also high, and the assembly is difficult, which greatly increases the production cost and is not conducive to product competition.

[0027] In order to solve this technical problem, the utility model provides a display device, which is applied to the field of electronic equipment.

[0028] Specifically, please refer to Figure 1-4 The display device specifically includes a casing middle frame 1, a display screen 2 and a cover plate 3. A buffer layer 4 of an integrated structure is provided between the casing middle frame 1 and the display screen 2. A deformation cavity is provided in the buffer layer 4. When the display screen 2 is subjected to external force, the deformation cavity is deformed.

[0029] The display device provided by the utility model adopts a buffer layer 4 of an integrated structure to connect the middle frame 1 of the casing and the display screen 2. When the display screen is subjected to external force, the deformation cavity in the buffer layer 4 is deformed and supports the display screen 2, thereby reducing the deformation of the display screen 2 and absorbing part of the impact force exerted on the display screen 2, thereby minimizing the damage exerted on the display screen 2 and avoiding the display screen 2 from being broken due to deformation or strong external force, thereby significantly improving the impact resistance of the display device. In addition, the buffer layer 4 has a simple structure and can be prepared in an integrated manner, which is low in cost and simple in assembly process, thereby reducing production costs and improving product competitiveness.

[0030] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiments of the utility model will be clearly and completely described below in conjunction with the accompanying drawings.

[0031] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0032] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0033] Example 1

[0034] Please refer to Figure 1 A display device is provided, which includes a casing middle frame 1, a display screen 2 and a cover plate 3, which are assembled according to a traditional assembly process. The specific arrangement structure is an existing conventional structure and is not described further herein. A buffer layer 4 of an integral structure is provided between the casing middle frame 1 and the display screen 2. A deformation cavity is provided in the buffer layer 4. When the display screen 2 is subjected to an external force, the deformation cavity is deformed. The deformation of the deformation cavity is elastic deformation and can quickly restore to its original state, thereby providing elastic buffering for the display screen 2.

[0035] When the display screen 2 is impacted by external force, the middle part of the display screen 2 will bend and deform downward. Therefore, the buffer layer 4 is arranged in the middle part of the display screen 2 to elastically support the middle part of the display screen 2 and provide buffering.

[0036] In this example, the buffer layer 4 is a foam board. The foam has the advantages of being elastic, light, fast pressure-sensitive fixing, easy to use, flexible, ultra-thin, and reliable in performance. Specifically, it is EVA foam, in which the VA content in the EVA foam is 5%, the density is low, the weight is light, and when the foam board is made, micropores are formed inside. All the micropores form a deformation cavity, and the micropores are compressed to deform, so as to elastically buffer the display screen 2, absorb part of the impact force on the display screen 2, minimize the damage to the display screen 2, and avoid the display screen 2 from being broken due to deformation or strong external force, which significantly improves the impact resistance of the display device. Of course, the buffer layer 4 can also be replaced with other materials that can achieve elastic buffering.

[0037] Example 2

[0038] The display device provided in Example 1 is further optimized. Specifically, please refer to Figure 2In this example, the buffer layer 4 is an elastic plate made of rubber or silicone. A plurality of through holes 5 are provided on the elastic plate. The through holes 5 are provided along the plane direction of the elastic plate. All the through holes 5 form a deformation cavity. The shape of the through hole 5 is one of an ellipse, a circle, a triangle or a rectangle. Of course, it is not limited to the above shapes. It can also be a rhombus or other shapes. In this example, it is preferably an ellipse, and the major axis of the ellipse is provided along the plane direction of the elastic plate. When the display screen 2 is subjected to external force, the elastic plate is deformed, compressing the through hole 5, so that the elastic plate is compressed and deformed, and can quickly return to its original state. Moreover, the major axis of the ellipse is provided along the plane direction of the elastic plate, which can prevent the elastic plate from being displaced in the plane direction when the elastic plate is compressed, thereby affecting the position of the display screen 2. The through holes 5 are provided at equal intervals and the interval is 1-3mm, preferably 2mm, which can improve the sensitivity of the deformation of the elastic plate.

[0039] Example 3

[0040] The display device provided in Example 2 is further optimized. Specifically, please refer to Figure 3 , 4 In this example, the buffer layer 4 can be an elastic plate or a combined elastic plate. When it is a combined elastic plate, the buffer layer 4 includes an upper panel 6 and a lower panel 7 connected as one body. The upper panel 6 is provided with a plurality of corner grooves 8, which are arranged at equal intervals, and the interval is 1-3mm, preferably 2mm. The lower panel 7 is provided with a plurality of protruding structures 9, which are also arranged at equal intervals. The protruding structures 9 are triangular structures, and the protruding structures 9 are matched with the corner grooves 8 and a buffer cavity 10 is formed between the protruding structures 9 and the corner grooves 8. The formed buffer cavity 10 is a triangular structure, and the surface of the protruding structure 9 is parallel to the surface on the corresponding side of the corner groove 8, and the upper panel 6 and the lower panel 7 are connected by an elastic part 11, and the elastic part 11 is located on both sides of the buffer cavity 10, and all the buffer cavities 10 constitute a deformation cavity. When the display screen 2 is subjected to external force, the upper panel 6 acts as a force-bearing plate to ensure uniform force and avoid uneven force that causes internal damage to the display panel. It is compressed downward, and the elastic part 11 is deformed. At the same time, the protruding structure 9 extends into the corner groove 8 to play a positioning role. After the buffering is completed, the elastic part 11 returns to its original state to support the upper panel 6 to move downward.

[0041] The working principle of the display device provided by the present invention is as follows: a buffer layer 4 of an integrated structure is used to connect a casing middle frame 1 and a display screen 2 together; when the display screen is subjected to an external force, the deformation cavity in the buffer layer 4 is deformed and supports the display screen 2, thereby reducing the deformation of the display screen 2 and absorbing part of the impact force exerted on the display screen 2, thereby minimizing the damage exerted on the display screen 2 and avoiding the display screen 2 from being broken due to deformation or strong external force, thereby significantly improving the impact resistance of the display device; and the buffer layer 4 has a simple structure and can be prepared in an integrated manner, thereby having a low cost and a simple assembly process, thereby reducing the production cost and improving the product competitiveness.

[0042] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] Obviously, the embodiments described above are only some embodiments of the utility model, rather than all embodiments. The preferred embodiments of the utility model are given in the accompanying drawings, but they do not limit the patent scope of the utility model. The utility model can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the utility model more thorough and comprehensive. Although the utility model is described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific implementation methods, or to replace some of the technical features therein with equivalents. Any equivalent structure made using the contents of the utility model specification and the accompanying drawings, directly or indirectly used in other related technical fields, is also within the scope of patent protection of the utility model.

Claims

1. A display device, comprising a housing middle frame, a display screen and a cover plate, characterized in that: A buffer layer of an integral structure is arranged between the casing middle frame and the display screen, and a deformation cavity is arranged in the buffer layer. When the display screen is subjected to external force, the deformation cavity is deformed.

2. A display device according to claim 1, characterized in that: The buffer layer is arranged in the middle of the display screen.

3. A display device according to claim 1 or 2, characterized in that: The buffer layer is a foam board, and micropores are arranged in the foam board, and all the micropores form a deformation cavity.

4. A display device according to claim 1, characterized in that: The buffer layer is an elastic plate, and the elastic plate is provided with a plurality of through holes, the through holes are arranged along the plane direction of the elastic plate, and all the through holes form a deformation cavity.

5. A display device according to claim 4, characterized in that: The through hole has a shape of an ellipse, a circle, a triangle or a rectangle.

6. A display device according to claim 4 or 5, characterized in that: The through hole is in the shape of an ellipse, and the major axis of the ellipse is arranged along the plane direction of the elastic plate.

7. A display device according to claim 4, characterized in that: The through holes are arranged at equal intervals with a spacing of 1-3 mm.

8. A display device according to claim 1, characterized in that: The buffer layer includes an upper panel and a lower panel connected as one body, the upper panel is provided with a plurality of corner grooves, the lower panel is provided with a plurality of protruding structures, the protruding structures are matched with the corner grooves and a buffer cavity is formed between the protruding structures and the corner grooves, and all the buffer cavities constitute a deformation cavity.

9. A display device according to claim 8, characterized in that: The upper panel and the lower panel are connected via an elastic part, and the elastic part is located on both sides of the buffer cavity.

10. A display device according to claim 8, characterized in that: The surface of the protruding structure is arranged parallel to the surface on the corresponding side of the corner groove.

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