Device for protecting glass substrate of liquid crystal display screen

Abstract

The utility model discloses a device for protecting a glass substrate of a liquid crystal display screen and an LCD module. The PCB module is connected with the LCD module through a metal clip PIN so as to realize a signal path; the backlight module is arranged between the LCD module and the PCB module; and the protection frame is buckled on the surface of the LCD module, is connected with the PCB module and is used for supporting and protecting the LCD module. According to the device for protecting the glass substrate of the liquid crystal display screen, the protection frame is additionally arranged on the basis of a traditional liquid crystal display module, the protection frame protruding out of one side of the liquid crystal display module can support and protect the liquid crystal display module, in the actual transferring and conveying process of the liquid crystal display screen, the protection frame can be in contact with a foreign object preferentially, and therefore the liquid crystal display screen can be protected. The LCD module is prevented from being collided and broken; and meanwhile, the protection frame is connected with the PCB module at the rear part through the fastener, so that the external force can be transmitted to the PCB module in cooperation with the compression foam.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid crystal display modules, in particular to a device for protecting a glass substrate of a liquid crystal display screen. Background Art

[0002] In information display technology, people have discovered the important role and significance of information digitization. Digital information is more accurate, identical, and easier to transmit and identify. A lot of information can be directly represented by numbers, so digital information display has become another important content of information display. From digital display to character display, it uses human-specific language and characters for display. This display is combined with digital display for a wider range of uses and a larger amount. At the same time, people also hope to use graphics and images for display, and the displayed content is colorful, can be active in real time, and has a three-dimensional effect.

[0003] At present, the traditional liquid crystal display module is mainly composed of LCD, backlight and PCB. Since the LCD is located at the outermost side of the liquid crystal display module and its material is mostly made of glass, the LCD is very easy to come into contact with foreign objects during actual transportation and transfer, causing bumps and cracks, which is not conducive to the protection and use of the liquid crystal display module. Therefore, a device for protecting the glass substrate of the liquid crystal display is proposed. Utility Model Content

[0004] Based on this, it is necessary to provide a device for protecting the glass substrate of the liquid crystal display screen to address the above-mentioned technical problems. A protective frame is buckled on the outside of the LCD module. The design of the protective frame achieves support and protection on the LCD surface, effectively reducing the damage caused by collision with foreign objects during the actual transportation of the display module.

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

[0006] A device for protecting a glass substrate of a liquid crystal display, comprising:

[0007] LCD module;

[0008] A PCB module connected to the LCD module via a metal clip PIN to achieve a signal path;

[0009] A backlight module, which is arranged between the LCD module and the PCB module;

[0010] A protection frame, which is buckled on the surface of the LCD module and connected to the PCB module, and is used to support and protect the LCD module;

[0011] Wherein, a fastener is provided on the protection frame for detachably fastening the protection frame to the PCB module.

[0012] Furthermore, the protection frame has an avoidance groove for exposing the display area of ​​the LCD module.

[0013] Furthermore, embedding grooves are formed at the four corners of the inner side of the protection frame, and compressed foam is pasted in the embedding grooves for fitting with the edge of the LCD module. The rigid contact between the protection frame and the LCD module can be avoided by the compressed foam.

[0014] Furthermore, the protection frame has a branch angle extending in the direction toward the PCB module;

[0015] The height of the support angle is equal to the sum of the thicknesses of the LCD module, the backlight module and the compressed foam.

[0016] Furthermore, the protection frame extends with a positioning angle along the width direction of the PCB module, and a through slot is provided in the positioning angle for installing a fastener.

[0017] Furthermore, the fastener includes a bolt and a nut, and the bolt passes through the through slot and the PCB module in sequence and is threadedly fastened and assembled with the nut.

[0018] Furthermore, a fixing hole adapted to fit the bolt is provided at a position corresponding to the through slot on the PCB module.

[0019] Furthermore, the protection frame is made of metal iron;

[0020] Metal copper that can be exposed and grounded is laid around the fixing hole, and the protection frame can be connected to GND under the action of the metal copper.

[0021] Furthermore, a limiting boss is protruded and extended outwardly from the inner edge of the embedding groove, and a chamfered arc surface is formed on one side of the top of the limiting boss.

[0022] Furthermore, the thickness of the limiting boss is half of the thickness of the compressed foam.

[0023] Compared with the prior art, the utility model has the following beneficial effects:

[0024] The device for protecting the glass substrate of a liquid crystal display screen provided by the utility model is provided with a protective frame on the basis of a traditional liquid crystal display module. The protective frame protruding from one side of the LCD module can form a support and protection for the LCD module. When the liquid crystal display screen is actually transported, the protective frame can be in contact with foreign objects first, thereby avoiding collision and breakage of the LCD module.

[0025] At the same time, because the protection frame is connected to the rear PCB module through fasteners, the compressed foam can transfer the external force to the PCB module, further protecting the LCD module.

[0026] By using the metal copper, when the protection frame is in contact with and fixed to the PCB module, the protection frame is directly grounded, which can simultaneously improve the anti-static ability of the liquid crystal display module. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A schematic diagram of the structure of a device for protecting a glass substrate of a liquid crystal display screen provided by the utility model;

[0028] Figure 2 A schematic diagram of the side structure of a device for protecting a glass substrate of a liquid crystal display screen provided by the utility model;

[0029] Figure 3 A schematic cross-sectional view of a device for protecting a glass substrate of a liquid crystal display screen provided by the utility model;

[0030] Figure 4 A schematic diagram of the structure of a protective frame of a device for protecting a glass substrate of a liquid crystal display screen provided by the utility model;

[0031] Figure 5 A schematic diagram of the back structure of a protection frame of a device for protecting a glass substrate of a liquid crystal display screen provided by the utility model;

[0032] Figure 6 A schematic diagram of the three-dimensional structure of a protection frame of a device for protecting a glass substrate of a liquid crystal display screen provided by the utility model;

[0033] Figure 7 A schematic diagram of the PCB module structure of the device for protecting the glass substrate of a liquid crystal display screen provided by the utility model;

[0034] Figure 8 The present invention is a schematic diagram of the limiting boss structure of the device for protecting the glass substrate of a liquid crystal display screen provided by the present invention.

[0035] The markings in the figure are as follows:

[0036] LCD module 1;

[0037] PCB module 2, metal clip PIN 21, fixing hole 22, metal copper 23;

[0038] Backlight module 3;

[0039] Protection frame 4, avoidance groove 41, embedding groove 42, compressed foam 43, support angle 44, positioning angle 45, through groove 46, bolt 47, nut 48;

[0040] 420, limiting boss; chamfered arc surface 421. DETAILED DESCRIPTION

[0041] 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.

[0042] As described in the background art, since the LCD is located at the outermost side of the entire liquid crystal display module and its material is mostly made of glass, during actual transportation and transfer, the LCD can easily come into contact with foreign objects and cause bumps and cracks, which is not conducive to the protection and use of the liquid crystal display module.

[0043] In order to solve this technical problem, the utility model provides a device for protecting a glass substrate of a liquid crystal display screen, which is applied to a liquid crystal display module.

[0044] Specifically, please refer to Figure 1-Figure 8 , the device for protecting the glass substrate of the liquid crystal display screen specifically includes:

[0045] LCD module 1;

[0046] PCB module 2, which is connected to LCD module 1 through metal clip PIN21 to realize signal path;

[0047] A backlight module 3, which is arranged between the LCD module 1 and the PCB module 2;

[0048] A protection frame 4, which is buckled on the surface of the LCD module 1 and connected to the PCB module 2, and is used to support and protect the LCD module 1;

[0049] Among them, fasteners are provided on the protection frame 4 for detachably fastening it to the PCB module 2 .

[0050] The device for protecting the glass substrate of a liquid crystal display screen provided by the utility model is provided with a protective frame 4 on the basis of a traditional liquid crystal display module. The protective frame 4 protruding from one side of the LCD module 1 can form a support and protection for the LCD module 1. When the liquid crystal display screen is actually transported and conveyed, the protective frame can preferentially contact with foreign objects to avoid the LCD module 1 from being bumped and broken. At the same time, because the protective frame 4 is connected to the rear PCB module 2 through a fastener, the external force received can be transmitted to the PCB module 2, thereby further realizing the protection of the LCD module 1.

[0051] 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 accompanying drawings.

[0052] 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.

[0053] 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.

[0054] Please refer to Figure 1-Figure 7 , a device for protecting a glass substrate of a liquid crystal display screen, comprising an LCD module 1; a PCB module 2, which is connected to the LCD module 1 through a metal clip PIN21 to realize a signal path; a backlight module 3, which is arranged between the LCD module 1 and the PCB module 2; a protection frame 4, which is buckled on the surface of the LCD module 1 and connected to the PCB module 2, and is used to support and protect the LCD module 1; wherein, a fastener is provided on the protection frame 4 for detachably fastening it to the PCB module 2.

[0055] Please refer to Figure 5 , 6 The protection frame 4 has an avoidance groove 41 for exposing the display area of ​​the LCD module 1;

[0056] The size of the avoidance groove 41 is slightly smaller than the overall size of the outer end of the LCD module 1. In the actual installation process, the display area on the LCD module 1 is located exactly at the position corresponding to the avoidance groove 41, so that the image displayed on the LCD screen can be exposed to the outside through the avoidance groove 41 without affecting the display use;

[0057] like Figure 4 and Figure 5 As shown, the four corners of the inner side of the protection frame 4 are formed with embedding grooves 42, and compressed foam 43 is pasted in the embedding grooves 42 for fitting with the edge of the LCD module 1. The rigid contact between the protection frame 4 and the LCD module 1 can be avoided by the compressed foam 43;

[0058] The design of the compressed foam 43 not only fills the gap between the protection frame 4 and the LCD module 1, but also enables non-rigid contact between the protection frame 4 and the LCD module 1, so that the LCD module 1 can be supported to a certain extent, further improving the stability of the connection between it and the PCB module 2.

[0059] The protection frame 4 has a support angle 44 extending in the direction of the PCB module 2, wherein the height of the support angle 44 is equal to the sum of the thicknesses of the LCD module 1, the backlight module 3 and the compressed foam 43. By extending the support angle 44, the side of the LCD module 1 can be covered and protected, further improving the protection effect of the protection frame 4.

[0060] The device for protecting the glass substrate of the liquid crystal display provided in Example 1 is further optimized. Specifically, Figure 4 and Figure 5 As shown, the protection frame 4 extends along the width direction of the PCB module 2 to form a positioning angle 45, and a through slot 46 is provided in the positioning angle 45 for installing a fastener;

[0061] In this embodiment, the number of positioning angles 45 provided on the protective frame 4 is four, and the four positioning angles 45 form a group of two. The two groups of positioning angles 45 are respectively distributed on both sides of the protective frame 4, so that when the protective frame 4 is connected to the PCB module 2 through fasteners, it can be fastened at the four corners synchronously, ensuring the stability of the protective frame 4 when it is installed and fastened.

[0062] The fasteners include bolts 47 and nuts 48 . The bolts 47 pass through the through slots 46 and the PCB module 2 in sequence and are threadedly fastened with the nuts 48 .

[0063] Through the above structural design, during the application and assembly process of the liquid crystal display module, the LCD module 1, the PCB module 2 and the backlight module 3 are first installed and assembled in order, and then the protection frame 4 is buckled on the surface of the LCD module 1, so that the avoidance groove 41 allows the display area of ​​the LCD module 1 to be exposed. At this time, the positioning angle 45 on the protection frame 4 is just in contact with the surface of the PCB module 2, and then one end of the bolt 47 is passed through the through groove 46 and the PCB module 2 and connected with the corresponding nut 48. By continuously rotating the nut 48, the relative connection and tightening between the protection frame 4 and the PCB module 2 can be achieved, thereby forming protection for the LCD module 1.

[0064] The device for protecting the glass substrate of the liquid crystal display provided in Example 1 or 2 is further optimized, such as Figure 1-Figure 7 As shown, a fixing hole 22 adapted to the bolt 47 is provided at a position corresponding to the through slot 46 on the PCB module 2. During the installation and fastening process of the protection frame 4 of the above-mentioned embodiment 2, the bolt 47 thereon can sequentially pass through the through slot 46 and the fixing hole 22 to form a threaded connection with the corresponding nut 48, thereby completing the fastening of the protection frame 4;

[0065] The protection frame 4 is made of metal iron, and a metal copper 23 that can be exposed and grounded is laid around the fixing hole 22. The metal copper 23 can make the protection frame 4 and the GND on the PCB module 2 conductive;

[0066] When the protection frame 4 is fastened to the corresponding PCB module 2 through the fasteners, the protection frame 4 is directly grounded through the metal copper 23 and GND, which can simultaneously improve the antistatic ability of the liquid crystal display module;

[0067] The specific metal used to make the protection frame 4 can also be replaced by iron, etc., as long as it can meet a certain structural strength to ensure the support and protection of the LCD module 1 and can achieve grounding conduction.

[0068] The device for protecting the glass substrate of the liquid crystal display provided in Example 3 is further optimized. When the above-mentioned protection frame 4 is buckled and installed, the compressed foam 43 needs to be placed on the corresponding protection frame 4 through the embedding groove 42. However, it is found in the actual application process that the embedding accuracy of the compressed foam 43 is not very good, resulting in that after the embedding and installation is completed, the position of the corners is easily exposed in the avoidance groove 41 due to the offset of the paste, thereby affecting the display screen of the display area of ​​the LCD module 1 in the avoidance groove 41. If the compressed foam 43 with offset paste is subsequently trimmed, the gap space is small, resulting in inconvenience in trimming operation, and it is easy to cause scratches on the LCD module 1, which reduces the overall yield rate of the liquid crystal display module to a certain extent.

[0069] For this reason, Figure 8 As shown, a limiting boss 420 is convexly extended outwardly from the inner edge of the embedding groove 42, and a chamfered arc surface 421 is formed on one side of the top of the limiting boss 420;

[0070] Through the design of the limiting boss 420, the protection frame 4 can play an auxiliary installation role when the compressed foam 43 is actually embedded and installed, which is beneficial for the operator to more accurately realize the positioning and installation of the compressed foam 43 by referring to the direction of the limiting boss 420. As long as the base position of the compressed foam 43 is installed without deviation, the upper part of the compressed foam 43 will not have deviations, thereby improving the overall yield of the liquid crystal display module.

[0071] The device for protecting the glass substrate of the liquid crystal display provided in Example 4 is further optimized, such as Figure 1 As shown, the thickness of the limiting boss 420 is half of the thickness of the compressed foam 43;

[0072] By designing the thickness of the limiting boss 420 to be half of the thickness of the compressed foam 43, it can be ensured that during the actual installation process of the protection frame 4, the limiting boss 420 will not directly contact the surface of the LCD module 1, causing it to be squeezed or even damaged. At the same time, when the compressed foam 43 is embedded and installed, it is convenient for the operator to adjust the position of the compressed foam 43 with one side of the limiting boss 420.

[0073] The device for protecting the glass substrate of a liquid crystal display screen provided by the utility model is used as follows: first, after the LCD module 1, the PCB module 2 and the backlight module 3 are installed and assembled in order, the compressed foam 43 is embedded and installed in the corresponding embedding groove 42 through the guiding effect of the limiting boss 420, and then the protection frame 4 is buckled on the surface of the LCD module 1, so that the avoidance groove 41 allows the display area of ​​the LCD module 1 to be exposed. At this time, the positioning angle 45 on the protection frame 4 is just in contact with the surface of the PCB module 2, and then one end of the bolt 47 is passed through the through groove 46 and the fixing hole 22 and connected with the corresponding nut 48. By continuously rotating the nut 48, the relative connection and tightening between the protection frame 4 and the PCB module 2 can be achieved, and the overall assembly of the liquid crystal display module is completed.

[0074] 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.

[0075] 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 device for protecting a glass substrate of a liquid crystal display, characterized in that: It includes: LCD module (1); A PCB module (2) connected to the LCD module (1) via a metal clip PIN (21) to achieve a signal path; A backlight module (3), which is arranged between the LCD module (1) and the PCB module (2); A protection frame (4) which is buckled onto the surface of the LCD module (1) and connected to the PCB module (2) and is used to support and protect the LCD module (1); Wherein, a fastener is provided on the protection frame (4) for detachably fastening the protection frame to the PCB module (2).

2. The device for protecting a liquid crystal display glass substrate according to claim 1, characterized in that: The protection frame (4) has an avoidance groove (41) for exposing the display area of ​​the LCD module (1).

3. The device for protecting a liquid crystal display glass substrate according to claim 1, characterized in that: Embedding grooves (42) are formed at the four corners of the inner side of the protection frame (4), and compressed foam (43) is pasted in the embedding grooves (42) for bonding with the edge of the LCD module (1). The compressed foam (43) can avoid rigid contact between the protection frame (4) and the LCD module (1).

4. The device for protecting a liquid crystal display glass substrate according to claim 1, characterized in that: The protection frame (4) has a support angle (44) extending in the direction of the PCB module (2); The height of the support angle (44) is equal to the sum of the thicknesses of the LCD module (1), the backlight module (3) and the compressed foam (43).

5. The device for protecting a liquid crystal display glass substrate according to claim 1, characterized in that: The protection frame (4) has a positioning angle (45) extending along the width direction of the PCB module (2), and a through slot (46) is provided in the positioning angle (45) for installing a fastener.

6. The device for protecting a liquid crystal display glass substrate according to claim 5, characterized in that: The fastener comprises a bolt (47) and a nut (48), and the bolt (47) passes through the through slot (46) and the PCB module (2) in sequence and is threadedly fastened and assembled with the nut (48).

7. The device for protecting a liquid crystal display glass substrate according to claim 6, characterized in that: A fixing hole (22) adapted to the bolt (47) is provided on the PCB module (2) at a position corresponding to the through slot (46).

8. The device for protecting a liquid crystal display glass substrate according to claim 7, characterized in that: The protection frame (4) is made of metal iron; Metal copper (23) that can be exposed and grounded is laid around the fixing hole (22), and the protection frame (4) can be connected to GND under the action of the metal copper (23).

9. The device for protecting a liquid crystal display glass substrate according to claim 3, characterized in that: A limiting boss (420) is provided at the inner edge of the embedding groove (42) and extends outwardly, and a chamfered arc surface (421) is formed on one side of the top of the limiting boss (420).

10. The device for protecting a glass substrate of a liquid crystal display according to claim 9, characterized in that: The thickness of the limiting boss (420) is half the thickness of the compressed foam (43).

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