Display device

Abstract

A display device comprises a supporting part and a cover plate, a first clamping part is arranged on the supporting part, a second clamping part is arranged on the side, close to the supporting part, of the cover plate, the second clamping part is in clearance fit with the first clamping part, and disinfectant can enter the space between the cover plate and a display panel only when flowing through the space between the second clamping part and the first clamping part. And the difficulty that the disinfectant enters the space between the cover plate and the display panel is increased. Even if the disinfectant corrodes the first bonding layer between the side, close to the side plate, of the first clamping part and the supporting part, the first bonding layer between the side, away from the side plate, of the first clamping part and the supporting part can still play a role in sealing protection, so that the possibility that the disinfectant corrodes the space between the cover plate and the display panel is greatly reduced; the yellowing risk and the glue failure problem are reduced, and the service life of the display device is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of display, and particularly to a display device. Background Art

[0002] When the display device is in a germy or contaminated environment for a long time, it is necessary to regularly wipe or spray and disinfect the surface of the display device with a disinfectant.

[0003] The disinfectant will enter the gap between the housing and the cover plate, continuously corrode the second adhesive layer between the cover plate and the display panel, resulting in the risk of yellowing and delamination of the second adhesive layer, and shortening the service life of the display device.

[0004] It should be noted that the information of the utility model in the above background art is only used to strengthen the understanding of the background of the present utility model, and thus may include information that does not constitute the prior art known to those of ordinary skill in the art. Summary of the Utility Model

[0005] The purpose of the present utility model is to overcome the problem that the second adhesive layer between the cover plate and the display panel is corroded by the disinfectant, resulting in the failure of the second adhesive layer, and to provide a display device.

[0006] According to one aspect of the present utility model, a display device is provided. The display device includes a housing, a cover plate, a first adhesive layer, and a display panel. The housing includes a side plate and a support portion. The support portion is connected to the side surface of the side plate, and a first clamping portion is provided on the support portion. The cover plate is lapped on the support portion. A second clamping portion is provided on the side of the cover plate close to the support portion. The second clamping portion is in clearance fit with the first clamping portion. The first adhesive layer is bonded to the side of the first clamping portion close to the side plate and the side away from the side plate. The display panel is provided on the side of the cover plate close to the support portion and is located within the area surrounded by the edges of the support portion.

[0007] In an embodiment of the present utility model, the first adhesive layer includes a first adhesive portion and a second adhesive portion. The first adhesive portion is provided on the side of the first clamping portion close to the side plate, and the second adhesive portion is provided on the side of the first clamping portion away from the side plate. The width of the first adhesive portion is greater than the width of the second adhesive portion.

[0008] In an embodiment of the present utility model, a drainage channel is provided in the portion of the support portion located between the cover plate and the side plate.

[0009] In an embodiment of the present utility model, the first clamping portion includes a first protrusion provided on the support portion, and the second clamping portion is a first groove provided on the cover plate. The shapes of the first protrusion and the first groove are adapted to each other, and the first protrusion is fitted into the first groove.

[0010] In an embodiment of the present utility model, the first clamping portion is a first groove provided on the support portion, and the second clamping portion includes a first protrusion provided on the cover plate. The shape of the first protrusion is adapted to that of the first groove, and the first protrusion is fitted into the first groove.

[0011] In an embodiment of the present utility model, the first clamping portion further includes a flexible buffer portion. The flexible buffer portion is provided between the first protrusion and the first groove, and the flexible buffer portion covers and is fixed to the surface of the first clamping portion.

[0012] In an embodiment of the present utility model, the flexible buffer portion includes a first buffer portion and a second buffer portion arranged in sequence along the direction away from the support portion. The width of the first buffer portion gradually increases along the direction away from the support portion, and the width of the second buffer portion gradually decreases along the direction away from the support portion.

[0013] In an embodiment of the present utility model, the increasing amplitude of the width of the first buffer portion is smaller than the decreasing amplitude of the width of the second buffer portion.

[0014] In an embodiment of the present utility model, the increasing amplitude of the width of the first buffer portion gradually decreases along the direction away from the support portion, and the decreasing amplitude of the width of the second buffer portion gradually increases along the direction away from the support portion.

[0015] In an embodiment of the present utility model, a third clamping portion is provided on the side plate, and a fourth clamping portion is provided on the side surface of the cover plate. The fourth clamping portion is clamped together with the third clamping portion.

[0016] The display device of the present utility model includes a support portion and a cover plate. A first clamping portion is provided on the support portion, and a second clamping portion is provided on the side of the cover plate close to the support portion. The second clamping portion is in clearance fit with the first clamping portion. The disinfectant needs to flow through the space between the second clamping portion and the first clamping portion to enter the space between the cover plate and the display panel, which increases the difficulty for the disinfectant to enter the space between the cover plate and the display panel. The first adhesive layer is bonded to the side of the first clamping portion close to the side plate and the side away from the side plate. Even if the first adhesive layer between the side of the first clamping portion close to the side plate and the support portion is corroded by the disinfectant and the disinfectant enters the space between the second clamping portion and the first clamping portion, the first adhesive layer between the side of the first clamping portion away from the side plate and the support portion can still play a sealing and protective role, thereby greatly reducing the possibility of the disinfectant corroding between the cover plate and the display panel, reducing the risk of yellowing and the problem of delamination, and prolonging the service life of the display device.

[0017] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present utility model. Description of the Drawings

[0018] The accompanying drawings here are incorporated into the specification and form a part of this specification, showing embodiments consistent with the present utility model, and are used together with the specification to explain the principles of the present utility model. Obviously, the accompanying drawings in the following description are only some embodiments of the present utility model, and those of ordinary skill in the art can obtain other accompanying drawings based on these drawings without creative efforts.

[0019] Figure 1 It is a schematic cross-sectional view when the disinfectant liquid in the embodiment of the present utility model enters between the cover plate and the display panel of the display device.

[0020] Figure 2 It is Figure 1 a partial enlarged schematic view of part A in

[0021] Figure 3 It is a schematic connection diagram of the cover plate and the housing in the embodiment of the present utility model when the first protrusion is fitted in the first groove.

[0022] Figure 4 It is Figure 1 a partial enlarged schematic view of part B in

[0023] Figure 5 It is a schematic plan view of the cover plate of the display device in the embodiment of the present utility model.

[0024] Figure 6 It is a schematic plan view of the display device in the embodiment of the present utility model.

[0025] Figure 7 It is a schematic connection diagram of the cover plate and the housing in the embodiment of the present utility model when the width of the first buffer portion increases uniformly in the direction away from the support portion and the width of the first buffer portion decreases uniformly in the direction away from the support portion.

[0026] Figure 8 It is Figure 7 a partial enlarged schematic view of part C in

[0027] Figure 9 It is a schematic connection diagram of the cover plate and the housing in the embodiment of the present utility model when the increasing amplitude of the width of the first buffer portion gradually decreases in the direction away from the support portion and the decreasing amplitude of the width of the second buffer portion gradually increases in the direction away from the support portion.

[0028] Figure 10 It is Figure 9 a partial enlarged schematic view of part D in

[0029] Figure 11 It is a schematic connection diagram of the cover plate and the housing in the embodiment of the present utility model when the fourth engaging portion and the third engaging portion are engaged together.

[0030] Figure 12 is Figure 11 a partially enlarged schematic view of part E in

[0031] Figure 13 is a schematic connection diagram of the cover plate and the housing according to an embodiment of the present invention when a drainage channel is provided in a part of the support part located between the cover plate and the side plate.

[0032] Figure 14 is Figure 13 a partially enlarged schematic view of part F in

[0033] Description of reference numerals:

[0034] 1. Housing, 11. Side plate, 12. Support part, 121. First protrusion, 122. Second groove, 123. Drainage channel, 2. Cover plate, 21. First groove, 22. Second protrusion, 3. Flexible buffer part, 31. First buffer part, 32. Second buffer part, 4. First adhesive layer, 41. First adhesive part, 42. Second adhesive part, 5. Second adhesive layer, 6. Display panel. Detailed implementation manners

[0035] Now, example embodiments will be described more fully with reference to the accompanying drawings. However, the example embodiments can be implemented in various forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art. Like reference numerals in the figures denote like or similar structures, and thus their detailed descriptions will be omitted. In addition, the drawings are only schematic illustrations of the present invention and are not necessarily drawn to scale.

[0036] Although relative terms such as "upper" and "lower" are used in this specification to describe the relative relationship of one component of the icon to another component, these terms are used in this specification only for convenience, for example, according to the directions of the examples described in the accompanying drawings. It can be understood that if the device of the icon is turned upside down, the component described as "upper" will become the component described as "lower". When a structure is "on" another structure, it may mean that a structure is integrally formed on another structure, or that a structure is "directly" provided on another structure, or that a structure is "indirectly" provided on another structure through another structure.

[0037] The terms "a", "an", "the", "said" and "at least one" are used to indicate the presence of one or more elements / components / etc.; the terms "comprising" and "having" are used to mean an open inclusion and refer to the possible existence of additional elements / components / etc. in addition to the listed elements / components / etc.; the terms "first", "second", "third", etc. are used only as labels and are not a limitation on the quantity of their objects.

[0038] As Figure 1 and Figure 2 shown, the display device includes a housing, a cover plate 2 and a display panel 6. The housing includes side plates 11 and a support portion 12. The support portion 12 is connected to the side surface of the side plate 11. The cover plate 2 overlaps on the support portion 12 and is bonded to the support portion 12 through a first adhesive layer 4. The display panel 6 is bonded to one side of the cover plate 2 close to the support portion 12 through a second adhesive layer 5. Due to its special use environment, some display devices are in a germy or contaminated environment for a long time, and it is necessary to regularly wipe or spray and disinfect the surface of the display device. The disinfectant is mainly a strong oxidant, such as alcohol and chlorine-containing disinfectants.

[0039] After these disinfection liquids are sprayed on the surface of the display device, they will be wiped off after a short stay. The corrosive effect of the disinfectant on the cover plate 2 of the display device and the housing is minimal, but it will enter the gap between the housing and the cover plate 2, and will continuously corrode over time, and then corrode the second adhesive layer 5 between the cover plate 2 and the display panel 6, resulting in the problem of delamination and yellowing risk of the second adhesive layer 5, and there is no repair measure, which shortens the service life of the medical display. In this embodiment, one side of the display panel close to the cover plate 2 can be a touch layer. Of course, it can also be other layers, for example: when there is no touch layer, it can be a packaging layer.

[0040] Based on this, an embodiment of the present invention provides a display device. As Figures 3 to 12 shown, the display device includes a housing, a cover plate 2 and a first adhesive layer 4. The housing includes side plates 11 and a support portion 12. The support portion 12 is connected to the side surface of the side plate 11. The support portion 12 is provided with a first clamping portion; the cover plate 2 overlaps on the support portion 12. A second clamping portion is provided on one side of the cover plate 2 close to the support portion 12. The second clamping portion is in clearance fit with the first clamping portion; the first adhesive layer 4 is bonded to one side of the first clamping portion close to the side plate 11 and the side away from the side plate 11.

[0041] The support portion 12 is provided with a first clamping portion, and a second clamping portion is provided on the side of the cover plate 2 close to the support portion 12. The second clamping portion is in clearance fit with the first clamping portion. The disinfectant liquid needs to flow through the space between the second clamping portion and the first clamping portion to enter the second adhesive layer 5 between the cover plate 2 and the display panel 6, which increases the difficulty for the disinfectant liquid to enter between the cover plate 2 and the display panel 6. Even if the first adhesive layer 4 between one side of the first clamping portion close to the side plate 11 and the support portion 12 is corroded by the disinfectant liquid, the first adhesive layer 4 between the other side of the first clamping portion away from the side plate 11 and the support portion 12 can still play a sealing and protective role, thereby greatly reducing the possibility of the second adhesive layer 5 between the cover plate 2 and the display panel 6 being corroded by the disinfectant liquid, reducing the risk of yellowing and the problem of glue opening, and prolonging the service life of the display device.

[0042] The following will specifically describe the display device involved in the embodiment of the present invention in detail with reference to specific embodiments.

[0043] As Figure 3 and Figure 4 shown, the display device may include a housing and a cover plate 2. The housing includes a side plate 11 and a support portion 12. The support portion 12 is connected to the side surface of the side plate 11, and the support portion 12 may be perpendicular to the side surface of the side plate 11. The cover plate 2 is lapped on the support portion 12. The support portion 12 is provided with a first clamping portion, and a second clamping portion is provided on the side of the cover plate 2 close to the support portion 12. The second clamping portion is in clearance fit with the first clamping portion.

[0044] The first clamping portion is a first protrusion 121 provided on the support portion 12, and the second clamping portion is a first groove 21 provided on the cover plate 2. The first protrusion 121 is fitted in the first groove 21. The first protrusion 121 is an annular closed protrusion parallel to the side plate 11, and the first groove 21 is an annular closed groove extending along the contour of the cover plate 2. The shapes of the first protrusion 121 and the first groove 21 are adapted to each other.

[0045] As Figure 5 and Figure 6 shown, when the contour of the side plate 11 is a rectangular ring, the support portion is located inside the side plate. The cover plate 2 is a rectangular plate, and the cover plate 2 is lapped on the support portion 12. The edge of the cover plate 2 is located between the edge of the support portion and the inner edge of the side plate. The first groove 21 is an annular rectangular closed groove, and the two edges of the annular rectangular closed groove are parallel to the edge of the cover plate. The first protrusion 121 is an annular rectangular closed protrusion parallel to the side plate 11, and the two edges of the annular rectangular closed protrusion are parallel to the edge of the side plate 11. The two edges of the annular rectangular closed protrusion are located between the two edges of the annular rectangular closed groove, and there is a fitting gap between the two edges of the annular rectangular closed protrusion and the two edges of the annular rectangular closed groove.

[0046] For ease of processing, the two opposite side surfaces of the first protrusion 121 are parallel to the side surfaces of the side plate 11, and the side surface of the first protrusion 121 away from the support portion 12 is perpendicular to the side surface of the side plate 11. However, the hardness of the cover plate 2 and the support portion 12 are both relatively large, and in order to avoid stress concentration when the first protrusion 121 is matched with the first groove 21, the connection between the side surface of the first protrusion 121 away from the support portion 12 and the two opposite side surfaces of the first protrusion 121 is smoothly transitioned.

[0047] The display device may further include a first adhesive layer 4, the first adhesive layer 4 includes a first adhesive portion 41 and a second adhesive portion 42, the first adhesive portion 41 is provided on a side of the first clamping portion close to the side plate 11, and the second adhesive portion 42 is provided on a side of the first clamping portion away from the side plate 11. Because the disinfectant first contacts the first adhesive portion 41 when entering between the cover plate 2 and the side plate 11, in order to avoid the first adhesive portion 41 from being corroded as much as possible, thereby affecting the connection between the side of the cover plate 2 close to the side plate 11 and the support portion 12, the width of the first adhesive portion 41 is set to be greater than the width of the second adhesive portion 42.

[0048] The material of the cover plate 2 can be glass, and the material of the shell can be plastic. The thickness of the cover plate 2 is 1.8T. Using the laser processing method, a first groove 21 is formed on the side of the cover plate 2 close to the support part 12. The width of the first groove 21 is 0.5~0.9T, and the depth is 0.9~1.4T. The dimension of the first protrusion 121 along the thickness direction of the cover plate 2 is 1.6~2.2T, and the dimension of the first protrusion 121 along the width direction is 0.7~1.1T. The distance between the first protrusion 121 and the edge of the cover plate 2 along the width direction is 1.8, the assembly tolerance between the first protrusion 121 and the first groove 21 is 0.1T, and the assembly tolerance between the cover plate 2 and the support part 12 along the width direction is 0.2T. The thickness of the first adhesive layer 4 is 0.8T, the dimension of the first adhesive part along the width direction is 1~1.8T, and the dimension of the second adhesive part along the width direction is 1~1.4T. It should be noted that the thickness direction of the cover plate 2 is Figure 3 The x direction is shown in FIG. 1 , and the thickness direction of the cover plate 2 is Figure 3 The y direction is shown in FIG.

[0049] like Figures 7 to 10 As shown, in order to ensure the matching accuracy between the first clamping portion and the second clamping portion and further buffer the matching stress between the first clamping portion and the second clamping portion, the display device further includes a flexible buffer portion 3, which is arranged between the first protrusion 121 and the first groove 21, and the flexible buffer portion 3 covers and is fixed to the surface of the first protrusion 121. In order to prevent the flexible buffer portion 3 from relative movement with the first protrusion 121 and the first groove 21, a plurality of evenly distributed anti-slip protrusions are arranged on the surface of the flexible buffer portion 3.

[0050] When the first clamping part and the second clamping part cooperate, the flexible buffer part 3 can fill the fitting gap between the first protrusion 121 and the first groove 21, ensuring the fitting accuracy of the cooperation between the first clamping part and the second clamping part. Both the first protrusion 121 and the first groove 21 are in contact with the flexible buffer part 3, avoiding direct contact between the first protrusion 121 and the first groove 21, and buffering the fitting stress between the first clamping part and the second clamping part.

[0051] The flexible buffer part 3 includes a first buffer part 31 and a second buffer part 32 arranged in sequence along the direction away from the support part 12. The width of the first buffer part 31 gradually increases along the direction away from the support part 12, and the width of the second buffer part 32 gradually decreases along the direction away from the support part 12. Since the shape of the second clamping part is adapted to that of the first clamping part, in this case, the width of the first groove 21 first increases and then decreases along its depth direction. The first clamping part and the second clamping part can be clamped together without applying glue to bond the first protrusion 121 and the first groove 21, eliminating the glue-bonding process. The interference fit has good sealing performance, high fixing strength, and higher assembly accuracy than glue bonding.

[0052] As Figure 7 and Figure 8 shown, the width of the first buffer part 31 increases uniformly along the direction away from the support part 12, and the width of the first buffer part 31 decreases uniformly along the direction away from the support part 12. To facilitate the entry of the first protrusion 121 into the first groove 21, usually, the end of the second buffer part 32 away from the support part 12 is as small as possible, that is, the width of the end of the second buffer part 32 away from the support part 12 can approach zero infinitely. And to ensure that the first buffer part 31 effectively fills the gap between the first protrusion 121 and the first groove 21 here, the width of the first buffer part 31 near the support part 12 should not be too small. Therefore, the increasing amplitude of the width of the first buffer part 31 is set to be smaller than the decreasing amplitude of the width of the second buffer part 32.

[0053] As Figure 9 and Figure 10 shown, the increasing amplitude of the width of the first buffer part 31 gradually decreases along the direction away from the support part 12, and the decreasing amplitude of the width of the second buffer part 32 gradually increases along the direction away from the support part 12. The shape of the first clamping part is arc-shaped, and the overall structure of the first clamping part is relatively smooth, facilitating the entry of the first clamping part into the first groove 21 when connecting the cover plate 2 to the housing.

[0054] As Figure 11 and Figure 12As shown, a third engaging portion is provided on the side plate 11, and a fourth engaging portion is provided on the side surface of the cover plate 2. The fourth engaging portion is engaged with the third engaging portion. The third engaging portion may be a second groove 122 provided on the side plate 11, and the fourth engaging portion may be a second protrusion 22 provided on the side surface of the cover plate 2. The second protrusion 22 cooperates with the second groove 122 to limit the movement of the cover plate 2 in its thickness direction, prevent the cover plate 2 from separating from the support portion 12, and reduce the possibility of disinfectant entering between the first engaging portion and the second engaging portion. The disinfectant needs to flow through between the third engaging portion and the fourth engaging portion to enter the second adhesive layer 5 between the cover plate 2 and the display panel 6, increasing the difficulty of the disinfectant entering between the cover plate 2 and the side of the support portion 12 close to the side plate 11. When the thickness of the cover plate 2 is relatively large, a second groove may also be provided on the cover plate 2, and a second protrusion may be provided on the side plate 11, and the second groove and the first groove may be staggered with each other in the thickness direction of the cover plate.

[0055] As Figure 13 and Figure 14 shown, the disinfectant is a typical infiltrating liquid. A drainage channel 123 may be provided in the portion of the support portion 12 located between the cover plate 2 and the side plate 11. Through capillary action, the disinfectant entering between the cover plate 2 and the housing can be drained outside the display device. The depth and width of the drainage channel 123 are both 0.5T.

[0056] It should be noted that the first engaging portion may also be a first groove 21 provided on the support portion 12, and the second engaging portion may also include a first protrusion 121 provided on the cover plate 2. The shape of the first protrusion 121 is adapted to the shape of the first groove 21, and the first protrusion 121 is fitted into the first groove 21. When the first protrusion 121 is provided on the cover plate 2, the shape of the first protrusion 121 may be the same as when the first protrusion 121 is provided on the housing. According to the different materials of the cover plate 2 and the housing, the size of the first protrusion 121 can be adjusted.

[0057] This application is intended to cover any variations, uses, or adaptations of the present utility model, which follow the general principles of the present utility model and include known common knowledge or conventional technical means in the technical field not disclosed by the present utility model. The description and embodiments are only regarded as exemplary, and the true scope and spirit of the present utility model are pointed out by the claims.

[0058] It should be understood that the present utility model is not limited to the exact structure already described and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present utility model is only defined by the appended claims.

Claims

1. A display device, characterized in that, Comprising: A housing, including a side plate and a support portion, the support portion being connected to the side surface of the side plate, and a first clamping portion being provided on the support portion; A cover plate, lapped on the support portion, a second clamping portion being provided on the side of the cover plate close to the support portion, and the second clamping portion being in clearance fit with the first clamping portion; A first adhesive layer, adhesively bonded to the side of the first clamping portion close to the side plate and the side away from the side plate; A display panel, provided on the side of the cover plate close to the support portion, and the display panel being located within the area surrounded by the edges of the support portion.

2. The display device according to claim 1, wherein The first adhesive layer includes a first adhesive portion and a second adhesive portion, the first adhesive portion being provided on the side of the first clamping portion close to the side plate, the second adhesive portion being provided on the side of the first clamping portion away from the side plate, and the width of the first adhesive portion being greater than the width of the second adhesive portion.

3. The display device according to claim 1, wherein A drainage channel is provided in the portion of the support portion located between the cover plate and the side plate.

4. The display device according to claim 1, characterized in that, The first clamping portion includes a first protrusion provided on the support portion, the second clamping portion is a first groove provided on the cover plate, the shapes of the first protrusion and the first groove are adapted to each other, and the first protrusion is fitted into the first groove.

5. The display device according to claim 1, characterized in that The first clamping portion is a first groove provided on the support portion, the second clamping portion includes a first protrusion provided on the cover plate, the shapes of the first protrusion and the first groove are adapted to each other, and the first protrusion is fitted into the first groove.

6. The display device according to claim 4, characterized in that The first clamping portion further includes a flexible buffer portion, the flexible buffer portion being provided between the first protrusion and the first groove, and the flexible buffer portion covering and fixing the surface of the first protrusion.

7. The display device according to claim 6, wherein The flexible buffer portion includes a first buffer portion and a second buffer portion arranged in sequence along the direction away from the support portion, the width of the first buffer portion gradually increases along the direction away from the support portion, and the width of the second buffer portion gradually decreases along the direction away from the support portion.

8. The display device according to claim 7, characterized in that, The increasing amplitude of the width of the first buffer portion is smaller than the decreasing amplitude of the width of the second buffer portion.

9. The display device according to claim 8, wherein The increasing amplitude of the width of the first buffer portion gradually decreases along the direction away from the support portion, and the decreasing amplitude of the width of the second buffer portion gradually increases along the direction away from the support portion.

10. The display device according to claim 1, characterized in that, A third clamping portion is provided on the side plate, and a fourth clamping portion is provided on the side surface of the cover plate, and the fourth clamping portion is clamped together with the third clamping portion.

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