Display module capable of preventing glass corners from being broken

Abstract

The utility model discloses a display module capable of preventing glass corners from being broken, which relates to the field of display modules and comprises an LCD (liquid crystal display) module and a backlight module, retaining arms are arranged on the periphery of the backlight module, the LCD module is arranged in the retaining arms, and the corners of the LCD module are of fillet structures. According to the display module capable of preventing the glass corners from being broken, the corners of the LCD display module are changed into the round corner structures from the right angles, so that the corners of the LCD display module cannot be in direct contact with the right-angle blocking arms on the backlight module, the corners can be effectively prevented from being broken in the assembling, testing and using processes of the LCD display module, and the service life of the LCD display module is prolonged. The display function of the LCD display module is ensured, the product quality is improved, materials do not need to be additionally added, accessories in the LCD display module are chamfered in advance before assembly, machining and production are facilitated, the production cost is reduced, and the product competitiveness is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of display modules, in particular to a display module capable of preventing glass corners from breaking. Background Art

[0002] The liquid crystal display module is mainly composed of LCD and backlight module. The LCD is attached to the backlight module. In order to prevent light leakage, shielding arms are set around the backlight module. During production assembly or drop test, the four right angles of the LCD, especially the lower glass bound to the driver IC, have only one layer of glass at the two right angles near the two ends of the driver IC and are in a suspended state. Assembly extrusion or reliability testing can easily cause corner collapse, damage the ITO wiring on the glass, and affect the display function of the module.

[0003] Patent application No. 202121372374.8 discloses a display module for preventing glass corners from breaking, which includes a backlight module and a TFT module arranged above the backlight module, the edges of the backlight module and the TFT module are wrapped with edging paper, and a suspended portion is formed between the edge of the TFT module and the backlight module, and the suspended portion is provided with foam; in this technical solution, foam is used to support the corners of the TFT module, and edging paper is used to wrap the edges of the two modules, so as to achieve the purpose of reducing corner breakage and reducing the number of defective products; however, this method increases the assembly process, increases labor costs and material costs, and then increases production costs, which is not conducive to product competition, and there will still be point contact between the corners of the display module and the barrier arm, and the problem of broken corners is still prone to occur during testing. Therefore, the utility model discloses a display module for preventing glass corners from breaking to solve the above problems. Utility Model Content

[0004] Based on this, it is necessary to provide a display module that prevents glass corners from breaking in response to the above-mentioned technical problems. By changing the corners of the LCD display module from right angles to rounded structures, the corners of the LCD display module will not directly contact the right-angled barrier arms on the backlight module, which can effectively prevent the corners from breaking during assembly, testing and use of the LCD display module, thereby ensuring the display function of the LCD display module and improving product quality. No additional materials are required, and the accessories in the LCD display module can be pre-chamfered before assembly, which facilitates processing and production, 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 module for preventing glass corners from breaking comprises an LCD display module and a backlight module. The backlight module is provided with shielding arms around it, the LCD display module is arranged in the shielding arms, and the corners of the LCD display module are set as rounded structures.

[0007] As a preferred embodiment of the display module for preventing glass corners from breaking provided by the utility model, the LCD display module includes a lower polarizer, a lower glass, an upper glass and an upper polarizer bonded together in sequence, one end of the lower glass is flush with the upper glass, and the other end of the lower glass extends out of the upper glass to form a single-layer glass area, and the corners of the upper glass and the lower glass are both rounded structures.

[0008] As a preferred implementation of the display module for preventing glass corner breakage provided by the utility model, a driver IC is installed in the single-layer glass area of ​​the lower glass, and an FPC is hot-pressed and bonded to the driver IC.

[0009] As a preferred implementation of the display module for preventing glass corner breakage provided by the utility model, a first rounded corner is provided at one end corner of the upper glass away from the driver IC.

[0010] As a preferred implementation of the display module for preventing glass corner breakage provided by the utility model, the four corners of the lower glass are provided with second rounded corners.

[0011] As a preferred implementation of the display module for preventing glass corner breakage provided by the utility model, the radii of the first rounded corner and the second rounded corner are 2-10 mm.

[0012] As a preferred embodiment of the display module for preventing glass corners from breaking provided by the utility model, a gap is left between the corner of the LCD display module and the barrier arm, and the gap is filled with a first foam.

[0013] As a preferred embodiment of the display module for preventing glass corners from breaking provided by the utility model, a second foam with the same thickness as the lower polarizer is provided between the corners at both ends of the single-layer glass area of ​​the lower glass and the backlight module.

[0014] As a preferred embodiment of the display module for preventing glass corners from breaking provided by the utility model, it also includes a touch screen, and the touch screen is bonded to the upper polarizer through OCA optical glue.

[0015] As a preferred embodiment of the display module for preventing glass corner breakage provided by the utility model, a hard foam layer is provided between the two side corners of the single-layer glass area and the touch screen.

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

[0017] The display module for preventing glass corners from breaking provided by the utility model changes the corners of the LCD display module from a right angle to a rounded structure, so that the corners of the LCD display module will not directly contact the right-angled blocking arms on the backlight module, and can effectively prevent the corners from breaking during assembly, testing and use of the LCD display module, thereby ensuring the display function of the LCD display module and improving product quality. No additional materials are required, and accessories in the LCD display module are pre-chamfered before assembly, which is convenient for processing and production, reduces production costs, and improves 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 This is a schematic diagram of the overall structure of a display module for preventing glass corners from breaking provided by the utility model;

[0020] Figure 2 A schematic cross-sectional view of the overall structure of a display module for preventing glass corner breakage provided by the utility model;

[0021] Figure 3 A schematic plan view of an LCD display module for preventing glass corner breakage provided by the utility model;

[0022] Figure 4 for Figure 3 Schematic diagram of the middle and upper glass plane;

[0023] Figure 5 for Figure 4 Schematic diagram of the middle and lower glass plane;

[0024] Figure 6 This is a schematic diagram of the structure of the utility model after a touch screen is attached.

[0025] The markings in the figure are as follows:

[0026] 1. LCD display module; 101. Lower polarizer; 102. Lower glass; 103. Upper glass; 104. Upper polarizer; 105. Single-layer glass area; 2. Backlight module; 3. Baffle arm; 4. Rounded corner structure; 5. Driver IC; 6. FPC; 7. First rounded corner; 8. Second rounded corner; 9. First foam; 10. Second foam; 11. Touch screen; 12. OCA optical glue; 13. Hard foam layer. DETAILED DESCRIPTION

[0027] 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.

[0028] As described in the background technology, in order to prevent light leakage, shielding arms are arranged around the backlight module. During the production assembly or drop test, the four right angles of the LCD, especially the lower glass bound to the driver IC, have only one layer of glass at the two right angles close to the two ends of the driver IC and are in a suspended state. Assembly extrusion or reliability testing can easily cause corner chipping, damage the ITO wiring on the glass, and affect the display function of the module. In the prior art, foam is used to support the corners of the TFT module, and edge paper is used to wrap the edges of the two modules, so as to achieve the purpose of reducing corner breakage and reducing the number of defective products. However, this method increases the assembly process, increases labor costs and material costs, and then increases production costs, which is not conducive to product competition. In addition, there is still point contact between the corners of the display module and the shielding arms, and corner chipping is still prone to occur during testing.

[0029] In order to solve this technical problem, the utility model provides a display module for preventing glass corners from breaking, which is applied in the field of display modules.

[0030] Specifically, please refer to Figure 1-5 The display module for preventing glass corners from breaking specifically includes an LCD display module 1 and a backlight module 2. The backlight module 2 is surrounded by barrier arms 3. The LCD display module 1 is arranged in the barrier arms 3. The corners of the LCD display module 1 are set as rounded corner structures 4.

[0031] The display module for preventing glass corners from breaking provided by the utility model changes the corner of the LCD display module 1 from a right angle to a rounded corner structure 4, so that the corner of the LCD display module 1 will not directly contact the right-angle blocking arm 3 on the backlight module 2, and can effectively prevent the corners from breaking during the assembly, testing and use of the LCD display module 1, ensure the display function of the LCD display module 1, improve product quality, do not need to add additional materials, and pre-chamfer the accessories in the LCD display module 1 before assembly, which is convenient for processing and production, reduces production costs, and improves product competitiveness.

[0032] 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.

[0033] 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.

[0034] 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.

[0035] Example 1

[0036] Please refer to Figure 1-5 , a display module for preventing glass corners from cracking is provided, which includes an LCD display module 1 and a backlight module 2, wherein barrier arms 3 are arranged around the backlight module 2, and the corners of the barrier arms 3 are in a right-angle structure, the LCD display module 1 is arranged in the barrier arms 3, and the corners of the LCD display module 1 are set as rounded corner structures 4, and the corner structure of the barrier arms 3 remains unchanged, so that after the LCD display module 1 is installed, a certain gap is left between the corners of the LCD display module 1 and the corners of the barrier arms 3, so that the corners of the LCD display module 1 do not contact the barrier arms 3, so that no contact occurs, thereby avoiding corner cracking, and the strength of the rounded corner structure 4 is greater than that of the right-angle structure.

[0037] Further, the LCD display module 1 includes a lower polarizer 101, a lower glass 102, an upper glass 103 and an upper polarizer 104 which are sequentially bonded together, the lower polarizer 101 is bonded to the backlight module 2, one end of the lower glass 102 is flush with the upper glass 103, and the other end of the lower glass 102 is extended out of the upper glass 103 to form a single-layer glass area 105, the corners of the upper glass 103 and the lower glass 102 are both rounded structures 4, the upper polarizer 104 and the lower polarizer 101 have the same size structure and are smaller than the upper glass 103 and the lower glass 102, and a driver IC5 is installed in the single-layer glass area 105 of the lower glass 102, and an FPC6 is hot-pressed and bonded to the driver IC5, and the driver IC5 is electrically connected to the FPC6, and the FPC6 is a flexible circuit board.

[0038] Further, both the upper glass 103 and the lower glass 102 are rectangular structures. Since the upper glass 103 contacts the barrier arm 3 at one end away from the driver IC5, the corner of the upper glass 103 at one end away from the driver IC5 is provided with a first rounded corner 7, and the four corners of the lower glass 102 are in contact with the barrier arm 3, so the four corners of the lower glass 102 are provided with a second rounded corner 8. The radius of the first rounded corner 7 and the second rounded corner 8 is 2-10 mm. In this example, the chamfer radius is preferably 5 mm.

[0039] Example 2

[0040] The display module for preventing glass corner cracking provided in Example 1 is further optimized. Specifically, Figure 1-3 As shown, there is a gap between the corners of the LCD display module 1 and the barrier arm 3, and the first foam 9 is filled in the gap. The first foam 9 makes the rounded structure 4 softly contact with the corners of the barrier arm 3, further protecting the upper glass 103 and the lower glass 102. At the same time, a second foam 10 with the same thickness as the lower polarizer 101 is provided between the corners at both ends of the single-layer glass area 105 of the lower glass 102 and the backlight module 2. The second foam 10 supports the bottom of the single-layer glass area of ​​the lower glass 102 and provides elastic buffering to improve the impact and extrusion resistance of the single-layer glass area of ​​the lower glass 102 to avoid breakage.

[0041] Example 3

[0042] The display module for preventing glass corner cracking provided in Example 2 is further optimized. Specifically, Figure 6 As shown, a touch screen 11 is bonded to the upper surface of the upper polarizer 104 by means of an OCA optical adhesive 12, and a hard foam layer 13 is provided between the two side corners of the single-layer glass area 105 of the lower glass 102 and the touch screen 11, and the hard foam layer 13 is a single-sided sticky hard foam adhesive, and the adhesive surface of the hard foam layer 13 is bonded to the lower glass 102, ensuring that when the single-layer glass area 105 of the lower glass 102 is squeezed or impacted by an external force, the force exerted on the lower glass 102 can be effectively released, and a buffering effect can be achieved, thereby effectively avoiding the risk of the single-layer glass area 105 of the lower glass 102 being broken.

[0043] The working principle of the display module for preventing glass corner cracking provided by the utility model is as follows: by changing the corner of the LCD display module 1 from a right angle to a rounded corner structure 4, the corner of the LCD display module 1 will not directly contact the right-angle blocking arm 3 on the backlight module 2, which can effectively prevent the corner from cracking during the assembly, testing and use of the LCD display module 1, ensure the display function of the LCD display module 1, improve product quality, do not need to add additional materials, and pre-chamfer the accessories in the LCD display module 1 before assembly, which is convenient for processing and production, reduces production costs, and improves product competitiveness.

[0044] 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.

[0045] 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 module for preventing glass corners from breaking, comprising an LCD display module and a backlight module, characterized in that: The backlight module is surrounded by shielding arms, the LCD display module is arranged in the shielding arms, and the corners of the LCD display module are rounded structures.

2. A display module for preventing glass corners from breaking according to claim 1, characterized in that: The LCD display module includes a lower polarizer, a lower glass, an upper glass and an upper polarizer which are sequentially bonded together, one end of the lower glass is flush with the upper glass, and the other end of the lower glass extends out of the upper glass to form a single-layer glass area, and the corners of the upper glass and the lower glass are both rounded structures.

3. A display module for preventing glass corners from breaking according to claim 2, characterized in that: A driving IC is installed in the single-layer glass area of ​​the lower glass, and an FPC is bonded to the driving IC by heat pressing.

4. A display module for preventing glass corners from breaking according to claim 3, characterized in that: A first rounded corner is provided at one end corner of the upper glass away from the driver IC.

5. A display module for preventing glass corners from breaking according to claim 4, characterized in that: The four corners of the lower glass are provided with second rounded corners.

6. A display module for preventing glass corners from breaking according to claim 5, characterized in that: The radii of the first rounded corner and the second rounded corner are 2-10 mm.

7. A display module for preventing glass corners from breaking according to claim 6, characterized in that: A gap is left between the corner of the LCD display module and the barrier arm, and the gap is filled with a first foam.

8. A display module for preventing glass corners from breaking according to claim 2, characterized in that: A second foam having the same thickness as the lower polarizer is arranged between the corners at both ends of the single-layer glass area of ​​the lower glass and the backlight module.

9. A display module for preventing glass corners from breaking according to claim 2, characterized in that: The device also includes a touch screen, which is bonded to the upper polarizer through OCA optical glue.

10. A display module for preventing glass corners from breaking according to claim 9, characterized in that: A hard foam layer is provided between the two side corners of the single-layer glass area and the touch screen.

Images