Display device

Abstract

The utility model provides a kind of display equipment, the front surface of liquid crystal display is attached and bonded in the back of the glass cover plate;The front surface of the backlight module is provided with recess, the liquid crystal display is installed in the recess;The back of the liquid crystal display is not bonded with the inner bottom wall of the recess contact, the front surface of the backlight module is attached and bonded with the back of the glass cover plate;Compared with conventional technology, the connection mode of backlight module and liquid crystal display and glass cover plate is changed, so that the adhesive tension that originally acts on the liquid crystal display by backlight module is transferred to the glass cover plate, in the process of drop experiment, the liquid crystal display is not subjected to the tension of backlight module, the liquid crystal display can be well protected, avoid the liquid crystal display glass delamination leakage, prevent its display failure, so that display equipment meets the high requirements of customers at lower cost, comprehensively improve the competitiveness of display equipment in the industry.

Description

Technical Field

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

[0002] Display devices mainly consist of a backlight module, a glass cover, and an LCD screen. In conventional manufacturing, the glass cover, LCD screen, and backlight module are sequentially bonded together. Because there is a significant price difference between industrial-grade and non-non ...

[0003] However, when faced with customers' stringent drop tests, the industrial-grade glass cover and backlight module are quite heavy, and the LCD screen, as the bridge between the two, needs to withstand a lot of tensile force. Display devices that use consumer-grade LCD screens will experience liquid leakage due to the force, causing the LCD screen (TFT and CF) glass to delaminate and leak, resulting in display failure. Summary of the Invention

[0004] This invention provides a display device to solve the problem that existing display devices may experience liquid crystal glass delamination and leakage due to stress, causing display failure.

[0005] A display device includes a liquid crystal display screen, a glass cover, and a backlight module; The front of the LCD screen is bonded to the back of the glass cover. The backlight module has a groove on its front side, and the LCD screen is installed in the groove. The back of the LCD screen is in contact with the inner bottom wall of the groove but not bonded, while the front of the backlight module is bonded to the back of the glass cover. Alternatively, the back of the liquid crystal display screen is bonded to the inner bottom wall of the groove, and there is a gap between the front of the backlight module and the back of the glass cover. The LCD screen is surrounded by a bezel, which passes through the gap to wrap around the backlight module and is attached to the back of the backlight module.

[0006] Preferably, the display device further includes a buffer; the buffer is disposed between the liquid crystal display screen and the backlight module.

[0007] Preferably, the buffer includes a buffer body and a buffer sidewall extending from the periphery of the buffer body in a direction perpendicular to the buffer body; The buffer body is disposed between the back of the liquid crystal display screen and the inner bottom wall of the groove, and the buffer sidewall is disposed between the side of the liquid crystal display screen and the inner sidewall of the groove.

[0008] Preferably, the cushioning element is foam.

[0009] Preferably, the display device further includes an adhesive structure; The front of the liquid crystal display screen and the back of the glass cover plate, as well as the front of the backlight module and the back of the glass cover plate, are bonded together by the adhesive structure.

[0010] Preferably, the bonding structure includes an integral bonding element or multiple bonding blocks, wherein the multiple bonding blocks are arranged at intervals along the circumferential direction of the glass cover plate.

[0011] Preferably, the adhesive structure is VHB double-sided adhesive or OCA double-sided adhesive.

[0012] Preferably, the edging includes a first edging, a second edging extending from the periphery of the first edging in a direction perpendicular to the first edging, and a third edging extending from the side of the second edging away from the first edging in a direction parallel to the first edging. The first edging is connected to the liquid crystal display screen and is attached to the front of the backlight module; The second edge is attached to the side of the backlight module, and the third edge is attached to the back of the backlight module.

[0013] Preferably, the edging is made of high-performance adhesive tape.

[0014] The display device provided in this embodiment of the utility model has two assembly schemes.

[0015] The first assembly method involves first bonding the front of the LCD screen to the back of the glass cover, solidifying them into a single unit. A groove is provided on the front of the backlight module, which is then installed, allowing the LCD screen to fit within the groove. The back of the LCD screen contacts the inner wall of the groove but is not bonded. The front of the backlight module is bonded to the back of the glass cover, and the four surrounding walls of the backlight module are bonded to the back of the glass cover, completing the manufacturing of the display device (e.g., an LCM module). This setup, compared to conventional technology, changes the connection method between the backlight module, the LCD screen, and the glass cover. It transfers the adhesive pull from the backlight module onto the LCD screen to the glass cover. During drop tests, the LCD screen is not subjected to the pull of the backlight module, providing excellent protection and preventing liquid crystal delamination and leakage, thus preventing display failure. This allows the display device to meet high customer requirements at a lower cost, significantly enhancing its competitiveness in the industry.

[0016] The second assembly method involves first bonding the front of the LCD screen to the back of the glass cover, solidifying them into a single unit. A groove is provided on the front of the backlight module, which is then installed, with the LCD screen housed within the groove. The back of the LCD screen is bonded to the inner wall of the groove. A gap exists between the front of the backlight module and the back of the glass cover. An edging is provided around the LCD screen, which is then passed through the gap to wrap around the backlight module and bonded to its back, completing the display device (e.g., LCM module). Compared to conventional techniques, this design adds an edging feature, binding the backlight module and LCD screen together. This reduces the stress on the LCD screen during drops, providing better protection and preventing liquid crystal delamination and leakage, thus preventing display failure.

[0017] Alternatively, in the first assembly scheme, an edge banding can be provided. A gap is reserved between the front of the backlight module and the back of the glass cover. An edge banding is provided around the LCD screen. The edge banding passes through the gap, wraps around the backlight module, and is bonded to the back of the backlight module. This arrangement changes the connection method between the backlight module, the LCD screen, and the glass cover. It transfers the adhesive tension that was originally exerted on the LCD screen by the backlight module to the glass cover. During the drop test, the LCD screen is not subjected to the tension of the backlight module, thus providing good protection for the LCD screen. It also allows the backlight module and the LCD screen to be bound together, reducing the stress on the LCD screen during the drop, providing double protection for the LCD screen. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments of this application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a cross-sectional view of a first structure of a display device according to an embodiment of the present invention; Figure 2 yes Figure 1 Enlarged view of point A in the middle; Figure 3 This is a cross-sectional view of a second structure of the display device in one embodiment of the present invention; Figure 4 yes Figure 3 Enlarged view of point B in the middle; Figure 5 This is a rear view of a second structure of the display device in one embodiment of this utility model.

[0020] Among them, 1. LCD screen; 2. Glass cover plate; 3. Backlight module; 31. Groove; 4. Edge banding; 41. First edge banding; 42. Second edge banding; 43. Third edge banding; 5. Buffer; 6. Adhesive structure. Detailed Implementation

[0021] To make the technical problems, technical solutions, and beneficial effects solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0022] In the description of this application, it should be understood that the terms "longitudinal," "radial," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used only for the convenience of describing this application and simplifying the description, and do not 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. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0023] In the description of this application, it should be noted that, unless otherwise expressly 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 or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0024] This utility model provides a display device, referring to... Figures 1-5 The display device includes a liquid crystal display screen 1, a glass cover plate 2, and a backlight module 3. The front of the liquid crystal display screen 1 is bonded to the back of the glass cover plate 2. The front of the backlight module 3 has a groove 31, and the liquid crystal display screen 1 is installed in the groove 31. The back of the liquid crystal display screen 1 is in contact with the inner bottom wall of the groove 31 but not bonded, and the front of the backlight module 3 is bonded to the back of the glass cover plate 2. Alternatively, the back of the liquid crystal display screen 1 is bonded to the inner bottom wall of the groove 31, and there is a gap between the front of the backlight module 3 and the back of the glass cover plate 2. The liquid crystal display screen 1 is surrounded by an edge 4, which passes through the gap, wraps around the backlight module 3, and is bonded to the back of the backlight module 3.

[0025] As an example, the display device includes a liquid crystal display screen 1, a glass cover 2, and a backlight module 3, and has two assembly options.

[0026] In the first assembly scheme, during installation, the front of the LCD screen 1 is first bonded to the back of the glass cover plate 2, so that the two are cured into a whole; a groove 31 is provided on the front of the backlight module 3, and then the backlight module 3 is installed so that the LCD screen 1 is installed in the groove 31, the back of the LCD screen 1 is in contact with the inner bottom wall of the groove 31 but not bonded, the front of the backlight module 3 is bonded to the back of the glass cover plate 2, specifically the four sides of the backlight module 3 are bonded to the back of the glass cover plate 2, thus completing the manufacturing of the display device (e.g., LCM module); This configuration, compared to conventional technology, changes the connection method between the backlight module 3, the LCD screen 1, and the glass cover plate 2. It transfers the adhesive tension that the backlight module 3 originally exerted on the LCD screen 1 to the glass cover plate 2. During drop tests, the LCD screen 1 is not subjected to the tension of the backlight module 3, thus providing excellent protection for the LCD screen 1. This prevents the LCD screen 1 from delaminating and leaking, thus preventing display failure. As a result, the display device can meet customers' high requirements at a lower cost, comprehensively enhancing the competitiveness of the display device in the industry.

[0027] The second assembly scheme involves first attaching the front of the LCD screen 1 to the back of the glass cover plate 2, solidifying them into a single unit. A groove 31 is provided on the front of the backlight module 3, which is then installed, allowing the LCD screen 1 to be installed within the groove 31. The back of the LCD screen 1 is attached to the inner bottom wall of the groove 31. A gap exists between the front of the backlight module 3 and the back of the glass cover plate 2. An edging 4 is provided around the LCD screen 1. The edging 4 passes through the gap, wraps around the backlight module 3, and is then attached to the back of the backlight module 3, completing the fabrication of the display device (e.g., an LCM module). Compared to conventional techniques, this design adds the edging 4, which wraps around the backlight module 3 and is attached to its back. This effectively binds the backlight module 3 and the LCD screen 1 together, reducing the stress on the LCD screen 1 during drops. This provides better protection for the LCD screen 1, preventing glass delamination and leakage, and thus preventing display failure.

[0028] Alternatively, in the first assembly scheme, an edge banding 4 can be provided. A gap is reserved between the front of the backlight module 3 and the back of the glass cover plate 2. An edge banding 4 is provided around the LCD screen 1. The edge banding 4 passes through the gap to wrap around the backlight module 3 and is bonded to the back of the backlight module 3. This setting changes the connection method between the backlight module 3 and the LCD screen 1 and the glass cover plate 2, so that the adhesive pull force originally acting on the LCD screen 1 by the backlight module 3 is transferred to the glass cover plate 2. During the drop test, the LCD screen 1 is not subjected to the pull force of the backlight module 3, and the LCD screen 1 can be well protected. It can also bind the backlight module 3 and the LCD screen 1 together, which can reduce the force on the LCD screen 1 during the drop, thus providing double protection for the LCD screen 1.

[0029] In one embodiment, reference is made to Figure 2 The display device also includes a buffer 5; the buffer 5 is disposed between the liquid crystal display screen 1 and the backlight module 3.

[0030] As an example, the display device also includes a buffer 5; during installation, the buffer 5 is placed between the LCD screen 1 and the backlight module 3. With this arrangement, the buffer 5 can be used to prevent the backlight module 3 from being squeezed onto the LCD screen 1 when the display device is dropped, thus further improving the protection of the LCD screen 1.

[0031] In one embodiment, the buffer 5 includes a buffer body and a buffer sidewall extending from the periphery of the buffer body in a direction perpendicular to the buffer body; the buffer body is disposed between the back of the liquid crystal display 1 and the inner bottom wall of the groove 31, and the buffer sidewall is disposed between the side of the liquid crystal display 1 and the inner sidewall of the groove 31.

[0032] As an example, the buffer 5 includes a buffer body and a buffer sidewall; the buffer sidewall is a component extending from the periphery of the buffer body in a direction perpendicular to the buffer body; during installation, the buffer body is positioned between the back of the LCD screen 1 and the inner bottom wall of the groove 31, and the buffer sidewall is positioned between the side of the LCD screen 1 and the inner sidewall of the groove 31; this configuration prevents collisions between the back of the LCD screen 1 and the inner bottom wall of the groove 31 by the buffer body, and prevents collisions between the side of the LCD screen 1 and the inner sidewall of the groove 31 by the buffer sidewall, thus protecting the LCD screen 1 from multiple sides and preventing the backlight module 3 from being squeezed onto the LCD screen 1 when it deforms during a drop. Alternatively, the buffer 5 can also be configured to include only the buffer body.

[0033] In one embodiment, the buffer 5 is foam.

[0034] As an example, the buffer 5 is made of foam. Using foam as the material of the buffer 5 can effectively improve the impact and vibration resistance of the LCD screen 1, providing reliable protection for the LCD screen 1.

[0035] In one embodiment, reference is made to Figure 2 and Figure 4 The display device also includes an adhesive structure 6; the front of the LCD screen 1 and the back of the glass cover 2, and the front of the backlight module 3 and the back of the glass cover 2 are both bonded together by the adhesive structure 6.

[0036] As an example, the display device also includes an adhesive structure 6. During installation, the front of the LCD screen 1 and the back of the glass cover 2, as well as the front of the backlight module 3 and the back of the glass cover 2, are bonded together using the adhesive structure 6. Specifically, the front of the LCD screen 1 is first bonded to the back of the glass cover 2 using the adhesive structure 6, and then the front of the backlight module 3, i.e., the surrounding walls of the backlight module 3, is bonded to the back of the glass cover 2 using the adhesive structure 6, thus completing the manufacturing of the display device. Compared with conventional technology, this setup changes the connection method between the backlight module 3 and the LCD screen 1 and the glass cover 2, transferring the adhesive pull force originally exerted by the backlight module 3 on the LCD screen 1 to the glass cover 2. During drop tests, the LCD screen 1 is not subjected to the pull force of the backlight module 3, thus providing excellent protection for the LCD screen 1 and preventing glass delamination and leakage, thereby preventing display failure. This allows the display device to meet high customer requirements at a lower cost, comprehensively enhancing its competitiveness in the industry.

[0037] In one embodiment, the adhesive structure 6 includes an integral adhesive element or multiple adhesive blocks, which are spaced apart along the circumferential direction of the glass cover plate 2.

[0038] As an example, the adhesive structure 6 has two structural forms. The first is an integrated adhesive component, which can bond the LCD screen 1 to the glass cover plate 2 to form a continuous and complete connection structure. The integrated adhesive component can also bond the backlight module 3 to the glass cover plate 2 to form a continuous and complete connection structure. This continuity avoids gaps and weak points that may occur due to the connection of multiple independent components, allowing the stress in the entire adhesive structure 6 to be distributed more evenly when subjected to external forces, thereby improving the overall stability of the structure. The integrated adhesive component forms a continuous sealing layer, which can better prevent dust, moisture, gases, and other external substances from entering the device. Due to its continuous sealing characteristics, the integrated adhesive component helps to improve the dustproof and waterproof rating of the entire device.

[0039] The first type uses multiple adhesive blocks, spaced apart along the circumference of the glass cover plate 2. With this structure, when the glass cover plate 2 is subjected to external force, the circumferential arrangement of the adhesive blocks disperses the stress across each block. This dispersion prevents excessive localized stress, thus reducing the risk of the glass cover plate 2 breaking due to stress concentration. The circumferential arrangement of the adhesive blocks also provides some space and flexibility for the deformation of the glass cover plate 2. When the glass cover plate 2 expands or contracts, the adhesive blocks allow for some movement of the glass cover plate 2 without causing it to break or the adhesive to fail due to excessive constraint.

[0040] In one embodiment, the adhesive structure 6 is VHB double-sided adhesive or OCA double-sided adhesive.

[0041] As an example, adhesive structure 6 is VHB double-sided tape or OCA double-sided tape. VHB double-sided tape has super strong adhesion, weather resistance and long-term stability. The viscoelastic properties of VHB double-sided tape can absorb vibration energy and reduce structural resonance. OCA double-sided tape has high adhesion and peel strength, is resistant to high temperature, high humidity and UV light irradiation, has low curing shrinkage, and its thinness (only tens of micrometers thick) meets the requirements of thin and light electronic devices.

[0042] In one embodiment, reference is made to Figure 4 and Figure 5 The edging 4 includes a first edging 41, a second edging 42 extending from the periphery of the first edging 41 in a direction perpendicular to the first edging 41, and a third edging 43 extending from the side of the second edging 42 away from the first edging 41 in a direction parallel to the first edging 41; the first edging 41 is connected to the liquid crystal display 1 and is attached to the front of the backlight module 3; the second edging 42 is attached to the side of the backlight module 3, and the third edging 43 is attached to the back of the backlight module 3.

[0043] As an example, the edging 4 includes a first edging 41, a second edging 42, and a third edging 43. The second edging 42 is a component extending from the periphery of the first edging 41 in a direction perpendicular to the first edging 41, and the third edging 43 is a component extending from the side of the second edging 42 away from the first edging 41 in a direction parallel to the first edging 41. During installation, the first edging 41 is connected to the LCD screen 1 and attached to the front of the backlight module 3, the second edging 42 is attached to the side of the backlight module 3, and the third edging 43 is attached to the back of the backlight module 3. With this configuration, the edging 4 passes through the gap to wrap around the backlight module 3 and is attached to the back of the backlight module 3, which can bind the backlight module 3 and the LCD screen 1 together. This can reduce the force on the LCD screen 1 during a drop, thus providing good protection for the LCD screen 1, preventing the LCD screen 1 from delaminating and leaking liquid, and preventing its display failure.

[0044] In one embodiment, the edging 4 is a high-performance adhesive tape.

[0045] As an example, the edge banding 4 is made of high-performance tape (black PET single-sided adhesive). This high-performance tape has excellent adhesive properties, with strong and durable bonding strength, enabling it to bind the backlight module 3 and the LCD screen 1 together. This reduces the stress on the LCD screen 1 during drops, providing excellent protection and preventing glass delamination and leakage, thus preventing display failure. The high-performance tape also has a certain degree of elasticity and flexibility, which helps to distribute stress at the edge banding 4.

[0046] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be included within the protection scope of this application.

Claims

1. A display device, characterized in that, Includes LCD screen, glass cover, and backlight module; The front of the LCD screen is bonded to the back of the glass cover. The backlight module has a groove on its front side, and the LCD screen is installed in the groove. The back of the LCD screen is in contact with the inner bottom wall of the groove but not bonded, while the front of the backlight module is bonded to the back of the glass cover. Alternatively, the back of the liquid crystal display screen is bonded to the inner bottom wall of the groove, and there is a gap between the front of the backlight module and the back of the glass cover. The LCD screen is surrounded by a bezel, which passes through the gap to wrap around the backlight module and is attached to the back of the backlight module.

2. The display device according to claim 1, characterized in that, The display device further includes a buffer; the buffer is disposed between the liquid crystal display screen and the backlight module.

3. The display device according to claim 2, characterized in that, The buffer includes a buffer body and a buffer sidewall extending from the periphery of the buffer body in a direction perpendicular to the buffer body; The buffer body is disposed between the back of the liquid crystal display screen and the inner bottom wall of the groove, and the buffer sidewall is disposed between the side of the liquid crystal display screen and the inner sidewall of the groove.

4. The display device according to claim 2, characterized in that, The cushioning element is foam.

5. The display device according to claim 1, characterized in that, The display device also includes an adhesive structure; The front of the liquid crystal display screen and the back of the glass cover plate, as well as the front of the backlight module and the back of the glass cover plate, are bonded together by the adhesive structure.

6. The display device according to claim 5, characterized in that, The bonding structure includes an integral bonding component or multiple bonding blocks, with the multiple bonding blocks arranged at intervals along the circumferential direction of the glass cover.

7. The display device according to claim 5, characterized in that, The adhesive structure is VHB double-sided tape or OCA double-sided tape.

8. The display device according to claim 1, characterized in that, The edging includes a first edging, a second edging extending from the periphery of the first edging in a direction perpendicular to the first edging, and a third edging extending from the side of the second edging away from the first edging in a direction parallel to the first edging. The first edging is connected to the liquid crystal display screen and is attached to the front of the backlight module; The second edge is attached to the side of the backlight module, and the third edge is attached to the back of the backlight module.

9. The display device according to claim 1, characterized in that, The edging is made of high-performance adhesive tape.

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