Display module laminating device

Abstract

The utility model relates to a kind of display module laminating device, including laminating upper platform, the laminating lower platform below the laminating upper platform, the laminating upper platform is used to fix liquid crystal display device.The laminating lower platform is provided with several length-adjustable adjusting components towards the laminating upper platform side, the one end of each adjusting component is detachably connected with the laminating lower platform, the other end of each adjusting component is fixed with the backlight device oppositely arranged to the liquid crystal display device.Adjust the length of at least one adjusting component, to adjust the parallelism of the backlight device relative to the liquid crystal display device.The utility model is provided with several length-adjustable adjusting components, by changing the length of at least one adjusting component, greatly improve parallelism adjustment efficiency.And adjusting component volume is smaller, can satisfy the fixation of various backlight devices.

Description

Technical Field

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

[0002] LCM (LCD Module) refers to an LCD display module, which is an assembly that combines LCD liquid crystal display devices, connectors, peripheral circuits such as control and drive circuits, PCB circuit boards, backlight devices, structural components, etc. The production process of LCM often employs a bonding assembly process, requiring the LCD liquid crystal display devices and backlight devices to be bonded together. During the bonding assembly of the LCD liquid crystal display devices and backlight devices, a high degree of parallelism is required; typically, the parallelism error between the LCD liquid crystal display devices and backlight devices must be within 0.05 mm.

[0003] In current bonding equipment for LCD liquid crystal display devices and backlight devices, the following are commonly used: Figure 1 The display module bonding device shown is... Figure 1 The display module bonding device includes an upper bonding platform 1, a lower bonding platform 2, and a parallelism adjustment mechanism. A liquid crystal display device 3 can be fixed on the side of the upper bonding platform 1 facing the lower bonding platform 2, and a backlight device 4 can be fixed on the side of the lower bonding platform 2 facing the upper bonding platform 1. During the bonding process of the liquid crystal display device 3 and the backlight device 4, the parallelism error between the liquid crystal display device 3 and the backlight device 4 must be ensured to be within 0.05 mm, that is, the parallelism error between the upper bonding platform 1 and the lower bonding platform 2 must be controlled to be within 0.05 mm. Figure 1 The display module bonding device shown employs a parallelism adjustment mechanism to adjust the parallelism between the upper bonding platform 1 and the lower bonding platform 2. Specifically, the parallelism adjustment mechanism includes a parallelism adjustment plate 5, an upper pull screw 6, and a lower push screw 7. Both the upper pull screw 6 and the lower push screw 7 are bolted to the parallelism adjustment plate 5. The upper pull screw 6 is movably connected to the upper bonding platform 1, and the lower push screw 7 abuts against the upper bonding platform 1. With the parallelism adjustment plate 5 fixed, rotating the upper pull screw 6 moves the upper bonding platform 1 toward the parallelism adjustment plate 5; or rotating the lower push screw 7 moves the upper bonding platform 1 away from the parallelism adjustment plate 5. Several sets of pull-up screws 6 and lower push screws 7 are provided. By adjusting each pull-up screw 6 and / or lower push screw 7, the parallelism between the upper platform 1 and the lower platform 2 can be adjusted, thereby adjusting the parallelism error between the upper platform 1 and the lower platform 2 to within 0.05 mm, and ultimately ensuring that the parallelism error between the liquid crystal display device 3 and the backlight device 4 is within 0.05 mm.

[0004] After the parallelism between the upper bonding platform 1 and the lower bonding platform 2 reaches the error range, the liquid crystal display device 3 is fixed on the upper bonding platform 1, and the backlight device 4 is fixed on the lower bonding platform 2. Then, the upper bonding platform 1 and the lower bonding platform 2 are driven closer together, causing the liquid crystal display device 3 and the backlight device 4 to bond together. After one liquid crystal display device 3 and backlight device 4 are bonded together, the upper bonding platform 1 and the lower bonding platform 2 are moved away from each other, and the bonded liquid crystal display device 3 and backlight device 4 are removed. This completes the bonding assembly of the liquid crystal display device 3 and backlight device 4. This process is then repeated for the bonding of the next liquid crystal display device 3 and backlight device 4.

[0005] However, existing display module bonding devices have two drawbacks.

[0006] Firstly, in Figure 1 In the display module bonding device, after prolonged use, the upper pull screw 6 and lower push screw 7 in the parallelism adjustment mechanism may deform and loosen, resulting in a large parallelism error between the upper bonding platform 1 and the lower bonding platform 2, exceeding the set error value of 0.05 mm. Therefore, it is necessary to readjust the parallelism between the upper bonding platform 1 and the lower bonding platform 2, a process that is time-consuming and difficult.

[0007] Secondly, in Figure 1 In the display module bonding device, the bottom of the backlight device 4 is usually provided with a boss 8. Since the positions of the boss 8 of various backlight devices 4 are different, when fixing the backlight device 4 to the bonding lower platform 2, how to ensure that the parallelism with the liquid crystal display device 3 has a low error, while satisfying the fixing of the backlight device 4 with different boss 8 positions to the bonding lower platform 2, is also a major problem. Utility Model Content

[0008] To address the problems existing in the prior art, the present invention aims to provide a display module bonding device that facilitates the adjustment of parallelism error while meeting the bonding requirements of different types of backlight devices.

[0009] The objective of this utility model is achieved through the following technical solution:

[0010] A display module bonding device includes an upper bonding platform and a lower bonding platform located below the upper bonding platform. The upper bonding platform is used to fix a liquid crystal display device. The lower bonding platform has a plurality of length-adjustable adjustment components on the side facing the upper bonding platform. One end of each adjustment component is detachably connected to the lower bonding platform. Each adjustment component can be set at any position on the lower bonding platform. The other end of each adjustment component is fixed with a backlight device opposite to the liquid crystal display device. Adjusting the length of at least one adjustment component adjusts the parallelism of the backlight device relative to the liquid crystal display device.

[0011] Furthermore, the adjusting assembly includes a base and a rotating column threadedly connected to the base; rotating the rotating column changes the length of the adjusting assembly.

[0012] Furthermore, the adjustment assembly also includes a locking mechanism that restricts the base member and the rotating column from getting close to each other.

[0013] Furthermore, the base component includes a base block and a first column connected to the base block. The rotating column has a first hole, which is threadedly connected to the first column. When the rotating column is rotated, the rotating column and the base component move closer to each other or further apart.

[0014] Furthermore, the base component includes a base block and a first column connected to the base block, the first column having a second hole; a second column is connected to the rotating column, the second column being threadedly connected to the second hole; rotating the rotating column causes the rotating column and the base component to move closer to or further away from each other.

[0015] Furthermore, the locking mechanism is a locking nut, which is disposed between the base block and the rotating column, and is threadedly connected to the first column; the locking nut is rotated until it abuts against the rotating column, thereby restricting the rotating column from moving toward the base block.

[0016] Furthermore, the locking mechanism includes a first connecting block, a second connecting block, and a locking member; the first connecting block is threadedly connected to the first column, and the second connecting block is connected to the rotating column. When the rotating column is rotated, the rotating column moves closer to or further away from the base block. The locking member locks the relative movement between the first connecting block and the second connecting block, thereby locking the rotating column and the base block from moving closer to or further away from each other.

[0017] Furthermore, the first connecting block is provided with a threaded hole, the second connecting block is provided with a through hole, and the locking member is a bolt that mates with the threaded hole; the bolt passes through the through hole and mates with the threaded hole, and the bolt locks the relative movement between the first connecting block and the second connecting block.

[0018] Furthermore, the base component has a first channel penetrating the base component, and the rotating column has a second channel penetrating the rotating column. The first channel and the second channel are interconnected. The first channel is connected to an external vacuum generator, and the outlet of the second channel adsorbs the backlight device.

[0019] Furthermore, one end of each of the adjustment components is magnetically connected to the lower platform.

[0020] Compared with the prior art, the beneficial effects of this utility model are as follows: By setting several adjustable adjustment components, when it is necessary to adjust the parallelism between the liquid crystal display device and the backlight device, the backlight device can be tilted by changing the length of at least one adjustment component, which greatly improves the parallelism adjustment efficiency. At the same time, since the adjustment components are small in size, they can be adapted to the fixing of various backlight devices and are not affected by the position of the protrusions on the backlight device. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the display module bonding device in the background technology of this utility model;

[0022] Figure 2 This is a schematic diagram of the display module bonding device of this utility model;

[0023] Figure 3 This is a schematic diagram of the structure of the adjustment component in the first embodiment of this utility model;

[0024] Figure 4 This is a schematic diagram of the structure of the adjustment component in Embodiment 2 of this utility model;

[0025] Figure 5 This is a schematic diagram of the structure of the adjustment component in Embodiment 3 of this utility model;

[0026] Figure 6 This is a schematic diagram of the structure of the adjustment component in the fourth embodiment of this utility model;

[0027] Figure 7 This is a schematic diagram of the structure of the base component of this utility model in the first embodiment of this invention;

[0028] Figure 8This is a schematic diagram of the structure of the base component of this utility model in the second embodiment of this invention;

[0029] Figure 9 This is a schematic diagram of the rotating column of this utility model in the second embodiment of this invention;

[0030] Figure 10 This is a cross-sectional view of the rotating column of this utility model.

[0031] In the picture:

[0032] 1 - Upper platform; 2 - Lower platform; 3 - LCD display device; 4 - Backlight device; 5 - Parallelism adjustment plate; 6 - Pull-up screw; 7 - Lower top screw; 8 - Boss; 9 - Adjustment component; 9a - Base component; 9aa - Base block; 9ab - First column; 9b - Rotating column; 9c - Second hole; 9d - Second column; 9e - Locking nut; 9ea - Threaded ring; 9eb - Supporting ring; 9f - First connecting block; 9g - Second connecting block; 9h - Bolt; 10 - First channel; 11 - Magnet; 12 - First air extraction hole; 13 - Second air extraction hole; 14 - Wrench plane. Detailed Implementation

[0033] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0034] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model 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 utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0035] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0036] This utility model discloses a display module bonding device for bonding liquid crystal display device 3 and backlight device 4 in an LCD display module. Since bonding the liquid crystal display device 3 and backlight device 4 requires a high degree of parallelism between them, the display module bonding device of this utility model is necessary. Besides bonding LCD display modules, this display module bonding device can also be used for bonding other display modules and other devices with high parallelism requirements.

[0037] Specifically, such as Figure 2 As shown, the display module bonding device of this utility model includes an upper bonding platform 1 and a lower bonding platform 2 located below the upper bonding platform 1. The upper bonding platform 1 is used to fix the liquid crystal display device 3. The lower bonding platform 2 is provided with a plurality of adjustable length adjustment components 9 on the side facing the upper bonding platform 1. One end of each adjustment component 9 is detachably connected to the lower bonding platform 2. For example, the number and position of each adjustment component 9 can be such that there are four adjustment components 9, and each adjustment component 9 is arranged diagonally in pairs. The other end of each adjustment component 9 is fixed with a backlight device 4 arranged opposite to the liquid crystal display device 3.

[0038] The steps for using the display module bonding device of this utility model are as follows:

[0039] Step 1: Fix the liquid crystal display device 3 onto the bonding platform 1;

[0040] Step 2: Select a number of adjustment components 9 according to the position of the protrusion 8 on the backlight device 4;

[0041] Step 3: Fix the adjustment component 9 on the bonding platform 2, and fix the backlight device 4 on the adjustment component 9. Each adjustment component 9 is connected to the backlight device 4.

[0042] Step 4: Adjust the length of at least one adjustment component 9 to adjust the parallelism between the backlight device 4 and the liquid crystal display device 3 until the parallelism error between the liquid crystal display device 3 and the backlight device 4 is controlled within 0.05 mm.

[0043] Step 5: Drive the display device 3 and the backlight device 4 to move closer to each other and complete the bonding of the display device 3 and the backlight device 4;

[0044] Step 6: Drive the upper bonding platform 1 away from the lower bonding platform 2, and remove the bonded display device 3 and backlight device 4 from the display module bonding device;

[0045] Step 7: Re-fix the display device 3 on the bonding platform 1 and re-fix the backlight device 4 on the adjustment component 9. Then repeat steps 5 and 6 to complete the bonding of several display devices 3 and backlight devices 4 until the parallelism error between the liquid crystal display device 3 and the backlight device 4 exceeds 0.05 mm.

[0046] Step 8: Adjust at least one adjustment component 9 until the parallelism error between the liquid crystal display device 3 and the backlight device 4 does not exceed 0.05 mm;

[0047] Step 9: Repeat steps 7 and 8.

[0048] In step four, since each adjustment component 9 is detachably connected to the bonding platform 2, when it is necessary to adjust the parallelism between the liquid crystal display device 3 and the backlight device 4, in addition to adjusting the length of the adjustment component 9, it can also be achieved by changing the position of the adjustment component 9.

[0049] The display module bonding device of this utility model, by setting up several adjustable adjustment components 9, allows the backlight device 4 to tilt by changing the length of at least one adjustment component 9 when the parallelism between the liquid crystal display device 3 and the backlight device 4 needs to be adjusted, thus greatly improving the efficiency of parallelism adjustment. At the same time, because the adjustment components 9 are small in size, they can be adapted to various backlight devices 4 for fixing, and are not affected by the position of the protrusions 8 on the backlight device 4.

[0050] In the display module bonding device of this utility model, the detailed structure of the adjustment component 9 has multiple embodiments. Below, each of the numerous technical features of the adjustment component 9 will be described in detail using only one embodiment, and the embodiment in which this embodiment is located is referred to as this embodiment. Other embodiments of the numerous features of the adjustment component 9 are referred to as other embodiments, and will be briefly described below.

[0051] In this embodiment, as Figure 2 As shown, the display module bonding device of this utility model may also include a parallelism adjustment mechanism. That is, a mechanism such as [missing information] is fixed on the bonding platform 1. Figure 1The parallelism adjustment plate 5, pull-up screw 6, and lower screw 7 are shown. Therefore, when adjusting the parallelism between the liquid crystal display device 3 and the backlight device 4, both the parallelism adjustment mechanism and the adjustment component 9 can achieve parallelism adjustment, which is convenient to operate. In other embodiments, the parallelism adjustment mechanism may not be provided in the display module bonding device.

[0052] In this embodiment, as Figures 3 to 6 As shown. The adjusting assembly 9 includes a base 9a and a rotating column 9b threadedly connected to the base 9a. Rotating the rotating column 9b changes the length of the adjusting assembly 9. Figure 2 As shown, the upper bonding platform 1 is located above the lower bonding platform 2. When several adjustment components 9 are fixed above the lower bonding platform 2, and the backlight device 4 is fixed above the adjustment components 9, and it is necessary to adjust the parallelism of the backlight device 4 relative to the liquid crystal display device 3, the rotating column 9b is driven to rotate relative to the base component 9a. If the base component 9a and the rotating column 9b move away from each other, the length of the adjustment component 9 increases; if the base component 9a and the rotating column 9b move closer to each other, the length of the adjustment component 9 decreases. By adjusting the length of at least one adjustment component 9, the tilt of the backlight device 4 is changed, thereby achieving the adjustment of parallelism. This invention improves the adjustment accuracy of the adjustment component 9 by using a threaded connection between the base component 9a and the rotating column 9b, with the minimum adjustment accuracy reaching 0.01 mm. In other embodiments, the base component 9a and the rotating column 9b can be connected to each other by a telescopic rod.

[0053] In this embodiment, as Figures 3 to 6 As shown. The adjustment component 9 also includes a locking mechanism, which restricts the base component 9a and the rotating column 9b from getting close to each other. When the relative position between the base component 9a and the rotating column 9b is adjusted to the ideal position, it is necessary to lock the relative position between the base component 9a and the rotating column 9b. Since the adjustment component 9 is located between the bonding platform 2 and the backlight device 4, the adjustment component 9 can only shorten in length under the influence of the gravity of the backlight device 4, and cannot lengthen. Therefore, a locking mechanism is needed to restrict the base component 9a and the rotating column 9b from getting close to each other. This utility model prevents the parallelism between the liquid crystal display device 3 and the backlight device 4 from easily changing during the bonding process of the display module by setting the locking mechanism. In other embodiments, when the base component 9a and the rotating column 9b are connected to each other by means of a telescopic rod, holes can be drilled on both the base component 9a and the rotating column 9b, and a pin can be inserted into the hole to fix the relative position between the base component 9a and the rotating column 9b.

[0054] In this embodiment, as Figure 2 and Figure 3As shown, one end of each adjustment component 9 is magnetically connected to the lower platform 2. Specifically, the lower platform 2 can be made of a metal material, such as steel. A magnet 11 is fixed to the end of each adjustment component 9 furthest from the backlight device 4. When it is necessary to fix the adjustment component 9 to the lower platform 2, the magnet 11 is simply attracted to the lower platform 2. This invention uses a magnetic connection between the adjustment component 9 and the lower platform 2, facilitating quick installation or removal of the adjustment component 9 from the lower platform 2. In other embodiments, the connection between the adjustment component 9 and the lower platform 2 can also be achieved through snap-fitting, adhesive bonding, or other methods.

[0055] In this embodiment, as Figures 8 to 10 As shown. The base component 9a has a first channel 10 penetrating through it, and the rotating column 9b has a second channel penetrating through it. The first channel 10 is connected to an external vacuum generator, and the outlet of the second channel adsorbs the backlight device 4. This invention, through the arrangement of the first channel 10 and the second channel, allows the backlight device 4 to be connected to the adjustment component 9 via vacuum adsorption. When it is necessary to remove the backlight device 4 from the adjustment component 9, only the external vacuum generator needs to be stopped, making operation simple. Furthermore, a rubber gasket can be provided at one end of the adjustment component 9 where the backlight device 4 is adsorbed. The rubber gasket serves two purposes: firstly, it improves the sealing, resulting in a stronger adsorption force on the backlight device 4; secondly, during the adjustment process, the backlight device 4 may tilt, and because the rubber gasket is elastic, the backlight device 4 can still maintain a good fit with the adjustment component 9. In other embodiments, the connection between the backlight device 4 and the adjustment component 9 can also be achieved through snap-fitting, clamping, or other methods.

[0056] In this embodiment, as Figure 9 and Figure 10 As shown, the second channel includes a first suction hole 12 and a second suction hole 13 connected to the first suction hole 12. The first suction hole 12 is connected to the first channel 10, and the second suction hole 13 adsorbs the backlight device 4. The diameter of the second suction hole 13 is larger than that of the first suction hole 12. In this invention, because the diameter of the second channel on the side adsorbing the backlight device 4 is larger, the adsorption area for the backlight device 4 is larger, thereby achieving a larger suction force on the backlight device 4. The first suction hole 12 uses a smaller diameter, which facilitates reducing the volume of the entire rotating column 9b. In other embodiments, the diameter of the holes in the second channel can be the same everywhere, and a suction cup connected to the second channel can be provided at the end of the rotating column 9b where the backlight device 4 is adsorbed, so that the backlight device 4 can be adsorbed by the suction cup.

[0057] In this embodiment, there are two detailed implementation methods for the rotational connection between the base member 9a and the rotating column 9b in the adjustment assembly 9, and there are also two detailed implementation methods for the locking mechanism between the base member 9a and the rotating column 9b. The two locking mechanisms can be used in two different rotational connection methods between the base member 9a and the rotating column 9b. Therefore, in this embodiment, there are a total of four detailed implementation methods for the rotational connection and locking method between the base member 9a and the rotating column 9b in the adjustment assembly 9. These four implementation methods are referred to as Implementation Method 1, Implementation Method 2, Implementation Method 3 and Implementation Method 4 below.

[0058] Implementation Method 1:

[0059] The rotatable connection between the base component 9a and the rotating column 9b adopts the following structure:

[0060] like Figure 3 and Figure 7 As shown, the base component 9a includes a base block 9aa and a first post 9ab connected to the base block 9aa. A first hole is provided on the rotating post 9b, and the first hole is threadedly connected to the first post 9ab. Simultaneously, a second channel 10 is formed by the first hole, and the first channel 10 passes through the base block 9aa and the first post 9ab. When it is necessary to adjust the length of the adjusting component 9, the rotating post 9b is rotated, causing the rotating post 9b and the base component 9a to move closer or further apart.

[0061] The locking mechanism between the base component 9a and the rotating column 9b adopts the following structure:

[0062] like Figure 3 As shown, the locking mechanism is a locking nut 9e, which is positioned between the base block 9aa and the rotating column 9b. The locking nut 9e is threadedly connected to the first column 9ab. Specifically, both the locking nut 9e and the first hole are threaded into the first column 9ab. When assembling the locking nut 9e, the base block 9aa, and the rotating column 9b, as follows... Figure 3 and Figure 7 As shown, first screw the locking nut 9e into the first post 9ab, and then screw the rotating post 9b into the first post 9ab.

[0063] When it is necessary to lock the rotating column 9b to prevent it from moving toward the base block 9aa, rotate the locking nut 9e until the locking nut 9e abuts against the rotating column 9b, and the locking nut 9d restricts the rotating column 9b from moving toward the base block 9aa, thereby locking the rotating column 9b.

[0064] like Figure 3 As shown, both the rotating column 9b and the locking nut 9e have a wrench plane 14 on their outer walls for engaging with an external wrench. This invention facilitates the adjustment of the rotating column 9b and the locking of the locking nut 9e through the provision of the wrench plane 14.

[0065] Implementation Method Two:

[0066] The rotatable connection between the base component 9a and the rotating column 9b adopts the following structure:

[0067] like Figure 8 and Figure 9 As shown, the base component 9a includes a base block 9aa and a first post 9ab connected to the base block 9aa, with a second hole 9c on the first post 9ab. A second post 9d is connected to the rotating post 9b, and the second post 9d is threadedly connected to the second hole 9c. When it is necessary to adjust the length of the adjusting component 9, the rotating post 9b is rotated, causing the rotating post 9b and the base component 9a to move closer to or further apart.

[0068] The locking mechanism between the base component 9a and the rotating column 9b adopts the following structure:

[0069] like Figure 4 As shown, the locking mechanism is a locking nut 9e, which is positioned between the base block 9aa and the rotating column 9b. The locking nut 9e is threadedly connected to the first column 9ab. Specifically, the second column 9ab has a second thread on its outer side, and the second column 9ab is connected to the locking nut 9e via this second thread. The second hole 9c is connected to the second column 9d via a third thread. During assembly, the locking nut 9e is first screwed into the first column 9ab, and then the second column 9d is screwed into the second hole 9c. At this point, the locking nut 9e is positioned between the base block 9aa and the rotating column 9b. The locking nut 9e includes a threaded ring 9ea and a retaining ring 9eb connected to the threaded ring 9ea. The threaded ring 9ea is connected to the second column 9ab via the second thread. After the locking nut 9e is assembled, the retaining ring 9eb is positioned on the side of the threaded ring 9ea away from the base block 9aa, and the threaded ring 9ea and the retaining ring 9eb are coaxially aligned. The retaining ring 9eb is positioned on the side of the first post 9ab away from the base block 9aa, and the diameter of the retaining ring 9eb is smaller than the diameter of the rotating post 9b. The locking nut 9e is also fitted onto the outside of the second post 9d. Therefore, the retaining ring 9eb is located within the movement path of the rotating post 9b.

[0070] When the rotating column 9b rotates to the ideal position, it is necessary to lock the rotating column 9b to prevent it from moving toward the base block 9aa. Rotate the locking nut 9e until the retaining ring 9eb abuts against the rotating column 9b. At this time, the locking nut 9e restricts the rotating column 9b from moving toward the base block 9aa, thus locking the rotating column 9b.

[0071] Implementation Method 3:

[0072] The rotatable connection between the base component 9a and the rotating column 9b adopts the following structure:

[0073] like Figure 5As shown, the rotational connection between the base member 9a and the rotating column 9b in this embodiment is the same as the rotational connection in Embodiment 2, and will not be described in detail here.

[0074] The locking mechanism between the base component 9a and the rotating column 9b adopts the following structure:

[0075] like Figure 5 As shown, the locking mechanism includes a first connecting block 9f, a second connecting block 9g, and a locking element. The first connecting block 9f is threadedly connected to the first post 9ab, and the second connecting block 9g is connected to the rotating post 9b. Specifically, the second post 9d is connected to the second hole 9c via a fourth thread, and the second connecting block 9g is fixedly connected to the rotating post 9b by screws. The first connecting block 9f has a third hole, which is connected to the first post 9ab via a fifth thread. The fourth and fifth threads have opposite thread directions.

[0076] When the length of the adjusting component 9 needs to be adjusted, rotate the rotating column 9b, causing it to move closer to or further away from the base block 9aa. Specifically, during the assembly of the adjusting component 9, firstly, the first connecting block 9f is screwed onto the rotating column 9b, and then the first connecting block 9f is screwed onto the first column 9ab. Subsequently, the second column 9d is screwed into the second hole 9c. When the length of the adjusting component 9 needs to be adjusted, rotate the rotating column 9b until the length of the adjusting component 9 is adjusted to the ideal position.

[0077] When the length of the adjusting component 9 is adjusted to the ideal position, a locking element is used to lock the relative movement between the first connecting block 9f and the second connecting block 9g. At this time, the first connecting block 9f and the second connecting block 9g are connected to each other, thereby locking the rotating column 9b and the base block 9aa from moving closer or further apart, and thus locking the length of the adjusting component 9. Specifically, when it is necessary to lock the rotating column 9b and the base block 9aa, the first connecting block 9f is rotated until the locking element allows relative movement between the first connecting block 9f and the second connecting block 9g. When the locking element completes the locking of the first connecting block 9f and the second connecting block 9g, the first connecting block 9f and the second connecting block 9g cannot rotate relative to each other. Because of the reverse thread design of the fourth and fifth threads, the rotating column 9b cannot rotate relative to the base block 9aa, thereby locking the rotating column 9b and the base block 9aa from moving closer or further apart. In addition to having opposite directions of rotation, the fourth and fifth threads can also be designed with different pitches but the same direction of rotation.

[0078] like Figure 5As shown. The first connecting block 9f has a threaded hole, and the second connecting block 9g has a through hole. The locking element is a bolt 9h that mates with the threaded hole. When it is necessary to prevent the first connecting block 9f and the second connecting block 9g from rotating relative to each other, the bolt 9h is passed through the through hole and mates with the threaded hole, so that the bolt 9h locks the relative movement between the first connecting block 9f and the second connecting block 9f, thereby locking the rotation of the rotating column 9b and the base member 9a from rotating relative to each other. In other embodiments, both the first connecting block 9f and the second connecting block 9g may have a slot, and the locking element may also be a buckle that mates with the slot.

[0079] Implementation Method Four:

[0080] The rotatable connection between the base component 9a and the rotating column 9b adopts the following structure:

[0081] like Figure 6 As shown, the rotational connection between the base member 9a and the rotating column 9b in this embodiment is the same as the rotational connection in Embodiment 1, and will not be described in detail here.

[0082] The locking mechanism between the base component 9a and the rotating column 9b adopts the following structure:

[0083] like Figure 6 As shown, the locking mechanism includes a first connecting block 9f, a second connecting block 9g, and a locking element. The first connecting block 9f is threadedly connected to the first post 9ab, and the second connecting block 9g is connected to the rotating post 9b. Specifically, the rotating post 9b is connected to the first post 9ab via a sixth thread, and the first connecting block 9f has a third hole, which is connected to the first post 9ab via a seventh thread. The sixth and seventh threads have opposite thread directions.

[0084] During the assembly of the adjusting component 9, the second connecting block 9g is first installed on the rotating column 9b using screws, while the first connecting block 9f is screwed onto the first column 9ab, and then the first column 9ab is screwed into the first hole.

[0085] When the length of the adjusting component 9 needs to be adjusted, rotate the rotating column 9b until the length of the adjusting component 9 is adjusted to the ideal position. When it is necessary to lock the rotating column 9b and the base block 9aa, rotate the first connecting block 9f until the locking member can lock the relative movement between the first connecting block 9f and the second connecting block 9g. When the locking member completes the locking of the first connecting block 9f and the second connecting block 9g, the first connecting block 9f and the second connecting block 9g cannot rotate relative to each other.

[0086] At this point, the first connecting block 9f and the second connecting block 9g are connected to each other, thereby locking the rotating column 9b and the base block 9aa from moving closer or further apart, and thus locking the length of the adjusting component 9. Because of the reverse thread design of the sixth and seventh threads, the rotating column 9b cannot rotate relative to the base block 9aa, thus locking the rotating column 9b and the base block 9aa from moving closer or further apart. Besides having opposite directions of rotation, the sixth and seventh threads can also have different pitches but the same direction of rotation.

[0087] In summary, the display module bonding device of this utility model greatly improves the parallelism adjustment efficiency by setting several adjustable length adjustment components 9; and because the adjustment components 9 are small in size, they can be adapted to the fixing of various backlight devices 4. By using a threaded connection between the base 9a and the rotating column 9b, the adjustment accuracy of the adjustment components 9 can be improved. Furthermore, the locking mechanism prevents the parallelism between the liquid crystal display device 3 and the backlight device 4 from easily changing. The magnetic connection between the adjustment components 9 and the bonding lower platform 2 facilitates the quick installation and removal of the adjustment components 9. The first channel 10 and the second channel facilitate the fixing and removal of the backlight device 4 and the adjustment components 9. Finally, by setting the diameter of the second vent 13 to be larger than that of the first vent 12, a greater suction force is achieved on the backlight device 4.

[0088] It should be emphasized that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model in any way. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A display module bonding device, comprising a bonding upper platform (1) and a bonding lower platform (2) located below the bonding upper platform (1), wherein the bonding upper platform (1) is used to fix a liquid crystal display device (3), characterized in that, The lower bonding platform (2) is provided with several adjustable length adjustment components (9) on the side facing the upper bonding platform (1). One end of each adjustment component (9) is detachably connected to the lower bonding platform (2), and the other end of each adjustment component (9) is fixed with a backlight device (4) that is opposite to the liquid crystal display device (3). Adjusting the length of at least one adjustment component (9) adjusts the parallelism of the backlight device (4) relative to the liquid crystal display device (3).

2. The display module bonding device according to claim 1, characterized in that, The adjustment component (9) includes a base (9a) and a rotating column (9b) threadedly connected to the base (9a); by rotating the rotating column (9b), the length of the adjustment component (9) changes.

3. The display module bonding device according to claim 2, characterized in that, The adjustment assembly (9) further includes a locking mechanism that restricts the base member (9a) and the rotating column (9b) from getting close to each other.

4. The display module bonding device according to claim 3, characterized in that, The base component (9a) includes a base block (9aa) and a first column (9ab) connected to the base block (9aa). The rotating column (9b) has a first hole, which is threadedly connected to the first column (9ab). When the rotating column (9b) is rotated, the rotating column (9b) and the base component (9a) move closer to each other or further away from each other.

5. The display module bonding device according to claim 3, characterized in that, The base component (9a) includes a base block (9aa) and a first post (9ab) connected to the base block (9aa), the first post (9ab) having a second hole (9c); a second post (9d) is connected to the rotating post (9b), the second post (9d) being threadedly connected to the second hole (9c); rotating the rotating post (9b) causes the rotating post (9b) and the base component (9a) to move closer to or further away from each other.

6. The display module bonding device according to claim 4 or claim 5, characterized in that, The locking mechanism is a locking nut (9e), which is disposed between the base block (9aa) and the rotating column (9b). The locking nut (9e) is threadedly connected to the first column (9ab). The locking nut (9e) is rotated until it abuts against the rotating column (9b), thereby restricting the rotating column (9b) from moving toward the base block (9aa).

7. The display module bonding device according to claim 4 or claim 5, characterized in that, The locking mechanism includes a first connecting block (9f), a second connecting block (9g), and a locking member; the first connecting block (9f) is threadedly connected to the first column (9ab), and the second connecting block (9g) is connected to the rotating column (9b). When the rotating column (9b) is rotated, the rotating column (9b) moves closer to or further away from the base block (9aa). The locking member locks the relative movement between the first connecting block (9f) and the second connecting block (9g), thereby locking the rotating column (9b) and the base block (9aa) from moving closer to or further away from each other.

8. The display module bonding device according to claim 7, characterized in that, The first connecting block (9f) is provided with a threaded hole, and the second connecting block (9g) is provided with a through hole. The locking member is a bolt (9h) that mates with the threaded hole. The bolt (9h) passes through the through hole and mates with the threaded hole. The bolt (9h) locks the relative movement between the first connecting block (9f) and the second connecting block (9g).

9. The display module bonding device according to claim 2, characterized in that, The base component (9a) has a first channel (10) that passes through the base component (9a), and the rotating column (9b) has a second channel that passes through the rotating column (9b). The first channel (10) and the second channel are interconnected. The first channel (10) is connected to an external vacuum generator, and the outlet of the second channel adsorbs the backlight device (4).

10. The display module bonding device according to claim 1, characterized in that, One end of each of the adjustment components (9) is magnetically connected to the lower platform (2).

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