3D screen flatness adjusting device and method

Abstract

The invention discloses a 3D screen flatness adjusting device and method, belongs to the technical field of 3D display, and aims to solve the problems that the flatness adjusting technology of an existing 3D screen is limited, and the flatness adjusting effect is not ideal. The 3D screen comprises an adjusting mechanism and matching holes, m * n mounting areas are designed on a box body, m * n 3D-LED modules are spliced to form the 3D screen, the 3D-LED modules and the box body are jointly provided with the matching holes, and the matching holes are formed by communicating box body threaded holes, light holes, module threaded holes and blind holes; the adjusting mechanism comprises a driving part of a bolt structure and an adjusting rod, the driving part serves as a bolt head, and the adjusting rod is sequentially provided with a first-stage threaded rod, a second-stage connecting rod, a third-stage connecting rod and a fourth-stage threaded rod from the bolt head; the adjusting mechanism is matched with the matching hole to install the 3D-LED module on the box body and adjust the size of a gap between the 3D-LED module and the box body.

Description

Technical Field

[0001] The invention relates to a flatness adjustment technology for a 3D screen, belonging to the technical field of 3D display. Background Art

[0002] In the field of modern display technology, LED display screens have been widely used for their advantages such as high brightness, high contrast, and flexible splicing. However, the problem of flatness has always been a huge challenge in its development and application. On the one hand, with the development of LED packaging technology, high-end technology products such as GOB glue filling, COB film, and 3D-LED film continue to emerge. On the one hand, the use of packaging materials and the lamination of films have some impact on the display flatness. On the other hand, the height difference between unit boards during splicing accumulates to form obvious unevenness. In addition, during the installation process, structural welding, installation of cabinet components, deformation, insufficient rigidity, etc. will further cause the problem of poor flatness.

[0003] During the 3D screen installation process, it is usually Figure 1 The box shown is equipped with multiple 3D-LED modules in an array, and then multiple 3D-LED modules are spliced ​​into a large-size 3D screen. Then, the flatness of the 3D screen installation directly affects the integrity of the appearance, and thus determines the display quality. Especially with the development of small-pitch LED technology, the pixel density is getting higher and higher. In this case, the flatness requirements for the display screen are also getting higher and higher. Even a small unevenness may cause a deviation in the light projection angle between adjacent pixels, thus affecting the display quality.

[0004] The existing flatness adjustment technology for 3D screens is limited, and the flatness adjustment effect is not ideal. Summary of the invention

[0005] In view of the problem that the existing flatness adjustment technology of 3D screens is limited and the flatness adjustment effect is not ideal, the present invention provides a 3D screen flatness adjustment device and method.

[0006] In one aspect, the present invention provides a 3D screen flatness adjustment device, including an adjustment mechanism 1 and a matching hole 2, a box body 4 is designed with m×n installation areas, each installation area is paved with a 3D-LED module 3, and m×n 3D-LED modules 4 are spliced ​​into a 3D screen. The 3D-LED module 3 and the box body 4 are jointly provided with a matching hole 2, wherein the box body 4 is sequentially provided with a box body threaded hole 201 and a light hole 202 from the back to the front, and the 3D-LED module 3 is continuously provided with a module threaded hole 203 and a blind hole 204; the box body threaded hole 201, the light hole 202, the module threaded hole 203 and the blind hole 204 are connected, and the lengths are a, b, c and d, and the diameters are D, respectively. a , D b , Dc and D d ;

[0007] The adjusting mechanism 1 comprises a driving part 101 of a bolt structure and an adjusting rod, wherein the driving part 101 is a bolt head, and the adjusting rod is a primary threaded rod 102, a secondary connecting rod 103, a tertiary connecting rod 104 and a quaternary threaded rod 105 in sequence from the bolt head, and the lengths are a', b', c' and d' in sequence, and the diameters are D a' , D b' , D c' and D d' ;

[0008] The adjustment mechanism 1 and the matching hole 2 cooperate to install the 3D-LED module 3 on the box 4 and adjust the gap between the two; the matching relationship between the adjustment mechanism 1 and the matching hole 2 is:

[0009] The first-level threaded rod 102 is threadedly connected to the box threaded hole 201, and the fourth-level threaded rod 105 is threadedly connected to the module threaded hole 203;

[0010] And the adjustment mechanism 1 and the matching hole 2 have the following limiting conditions:

[0011]

[0012] Wherein, e is the gap between the 3D-LED module 3 and the box 4, which serves as the adjustment height of the 3D-LED module 3;

[0013] ΔD is 1-2 thread lengths.

[0014] Preferably, the driving unit 101 rotates clockwise or counterclockwise under the action of external force to adjust the size of the gap e between the 3D-LED module 3 and the box 4, and the flatness of the 3D screen is adjusted by jointly adjusting the heights of m×n 3D-LED modules 3.

[0015] Another aspect of the present invention provides a 3D screen flatness adjustment method, which is implemented based on the 3D screen flatness adjustment device, and the adjustment process includes a gap increasing process and a gap canceling process;

[0016] The gap-enhancing process includes the following steps:

[0017] A1. When the height of the adjusting mechanism 1 is adjusted, the driving part 101 rotates clockwise by the external force, and the fourth-level threaded rod 105, the third-level connecting rod 104, and the second-level connecting rod 103 of the adjusting mechanism 1 pass through the box threaded hole 201, and the fourth-level threaded rod 105 of the adjusting mechanism 1 begins to be screwed into the module threaded hole 203. At this time, the first-level threaded rod 102 does not contact the box threaded hole 201;

[0018] A2. The fourth-level threaded rod 105 of the adjustment mechanism 1 completely passes through the module threaded hole 203 and reaches the blind hole 204. At this time, the third-level connecting rod 104 is in the module threaded hole 203 area, and the fourth-level threaded rod 105 and the blind hole 204, the third-level connecting rod 104 and the module threaded hole 203 are all in a slipping state;

[0019] A3. The length of the secondary connecting rod 103 of the adjustment mechanism 1 is slightly less than 1-2 thread lengths of the box thickness. At this time, the primary threaded rod 102 is screwed into the box threaded hole 201 by 1-2 threads to fix the 3D-LED module 3 and the box 4 together. At this time, the gap between the 3D-LED module 3 and the box 4 is e=0, and the 3D-LED module 3 and the box 4 fit tightly.

[0020] A4. When there is a height difference between the 3D-LED modules 3 and it needs to be leveled, continue to rotate the adjustment mechanism 1 for adjustment. The fourth-level threaded rod 105 and the third-level connecting rod 104 are both in a slipping state, and the clockwise rotation is not affected. As the first-level threaded rod 102 rotates, the length of the second-level connecting rod 103 entering the box 4 gradually increases, and the gap e between the 3D-LED module 3 and the box 4 increases, thereby achieving the purpose of adjusting the height;

[0021] The gap removal process includes the following steps:

[0022] B1. When the height adjustment of the adjustment mechanism 1 is cancelled, the driving part 101 rotates counterclockwise by the external force, and the third-level connecting rod 104 and the fourth-level threaded rod 105 of the adjustment mechanism 1 are in a slipping state and rotate freely. As the first-level threaded rod 102 moves outward, the length of the second-level connecting rod 103 in the box 4 decreases, and the gap e between the 3D-LED module 3 and the box 4 decreases;

[0023] B2. When the critical point is reached, a portion of the first-level threaded rod 102 is in the box threaded hole 201, and the fourth-level threaded rod 105 is just in contact with the module threaded hole 203, and the 3D-LED module 3 fits the box 4;

[0024] B3. Continue to rotate counterclockwise, the first-level threaded rod 102 completely leaves the box threaded hole 201, and the fourth-level threaded rod 105 is screwed outward from the module threaded hole 203 until the adjustment mechanism 1 is completely disengaged.

[0025] The beneficial effects of the present invention are as follows: the flatness adjustment of the module can be completed by adjusting the driving part clockwise or counterclockwise on the back of the box body, which is convenient for maintenance, unlike the traditional method that requires the module to be disassembled for adjustment.

[0026] It is controlled by a secondary threaded rod, the height adjustment is controllable and accurate, and any height can be adjusted as needed. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1This is a schematic diagram of the cabinet structure used for assembling the 3D screen;

[0028] Figure 2 It is a structural schematic diagram of a 3D screen flatness adjustment device according to the present invention;

[0029] Figure 3 It is a structural diagram of the regulating mechanism;

[0030] Figure 4 It is a schematic diagram of the matching hole structure;

[0031] Figure 5 It is a schematic diagram of the installation of the adjustment mechanism, initial position;

[0032] Figure 6 This is the installation diagram of the adjustment mechanism. The gap between the cabinet and the 3D-LED module is 0;

[0033] Figure 7 This is a schematic diagram of the installation of the adjustment mechanism. The gap between the cabinet and the 3D-LED module is greater than 0. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0036] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but they are not intended to limit the present invention.

[0037] Specific implementation method 1: The following is combined Figures 1 to 7 The present embodiment is described. The present embodiment describes a 3D screen flatness adjustment device, comprising an adjustment mechanism 1 and a matching hole 2. The box 3 is designed with m×n installation areas, each installation area is provided with a 3D-LED module 3, and the m×n 3D-LED modules 3 are spliced ​​into a 3D screen. The 3D-LED module 3 and the box 4 are provided with a matching hole 2 together, wherein the box 3 is provided with a box threaded hole 201 and a light hole 202 in sequence from the back to the front, and the 3D-LED module 3 is provided with a module threaded hole 203 and a blind hole 204 in succession; the box threaded hole 201, the light hole 202, the module threaded hole 203 and the blind hole 204 are connected, and the lengths are a, b, c and d in sequence, and the diameters are D in sequence. a , D b , D c and Dd ;

[0038] The adjusting mechanism 1 comprises a driving part 101 of a bolt structure and an adjusting rod, wherein the driving part 101 is a bolt head, and the adjusting rod is a primary threaded rod 102, a secondary connecting rod 103, a tertiary connecting rod 104 and a quaternary threaded rod 105 in sequence from the bolt head, and the lengths are a', b', c' and d' in sequence, and the diameters are D a' , D b' , D c' and D d' ;

[0039] The adjustment mechanism 1 and the matching hole 2 cooperate to install the 3D-LED module 3 on the box 3 and adjust the gap between the two; the matching relationship between the adjustment mechanism 1 and the matching hole 2 is:

[0040] The first-level threaded rod 102 is threadedly connected to the box threaded hole 201, and the fourth-level threaded rod 105 is threadedly connected to the module threaded hole 203;

[0041] And the adjustment mechanism 1 and the matching hole 2 have the following limiting conditions:

[0042]

[0043] Wherein, e is the gap between the 3D-LED module 3 and the box 4, which serves as the adjustment height of the 3D-LED module 3;

[0044] ΔD is 1-2 thread lengths.

[0045] The diameter of the primary threaded rod 102 of the adjustment mechanism matches the diameter of the threaded hole 201 of the box body, and the length of the primary threaded rod 102 depends on the size of the height difference of the module to be adjusted, which is equivalent to the stroke.

[0046] The diameter of the secondary connecting rod 103 of the regulating mechanism is between the diameters of the primary threaded rod 102 and the fourth threaded rod 105 , and the length of the secondary connecting rod 103 is slightly smaller than the thickness h of the box body, where h=a+b.

[0047] The diameter of the third-level connecting rod 104 of the adjustment mechanism is smaller than the diameter of the fourth-level threaded rod 105 , and the length of the third-level connecting rod 104 is greater than the length of the module threaded hole 203 .

[0048] The diameter of the fourth-level threaded rod 105 of the adjustment mechanism matches the diameter of the threaded hole 203 of the module, and the length of the fourth-level threaded rod 105 is smaller than the blind hole 204 of the module.

[0049] The sum of the lengths of the third-level connecting rod 104 and the fourth-level threaded rod 105 of the adjustment mechanism is equal to the sum of the lengths of the module threaded hole 203 and the blind hole 204 .

[0050] The diameter of the module blind hole 204 is larger than that of the module threaded hole 203 , and the blind hole 204 is at a certain distance from the module surface 205 of the 3D-LED module 3 .

[0051] The driving unit 101 rotates clockwise or counterclockwise under the action of external force to adjust the size of the gap e between the 3D-LED module 3 and the box 4, and the flatness of the 3D screen is adjusted by jointly adjusting the heights of m×n 3D-LED modules 3.

[0052] Specific implementation method 2: A 3D screen flatness adjustment method described in this implementation is implemented based on the 3D screen flatness adjustment device described in implementation method 1, and the adjustment process includes a gap increasing process and a gap canceling process;

[0053] The gap-enhancing process includes the following steps:

[0054] A1. When the height of the adjusting mechanism 1 is adjusted, the driving part 101 rotates clockwise by the external force, and the fourth-level threaded rod 105, the third-level connecting rod 104, and the second-level connecting rod 103 of the adjusting mechanism 1 pass through the box threaded hole 201, and the fourth-level threaded rod 105 of the adjusting mechanism 1 begins to be screwed into the module threaded hole 203. At this time, the first-level threaded rod 102 does not contact the box threaded hole 201;

[0055] A2. The fourth-level threaded rod 105 of the adjustment mechanism 1 completely passes through the module threaded hole 203 and reaches the blind hole 204. At this time, the third-level connecting rod 104 is in the module threaded hole 203 area, and the fourth-level threaded rod 105 and the blind hole 204, the third-level connecting rod 104 and the module threaded hole 203 are all in a slipping state;

[0056] A3. The length of the secondary connecting rod 103 of the adjustment mechanism 1 is slightly less than 1-2 thread lengths of the box thickness. At this time, the primary threaded rod 102 is screwed into the box threaded hole 201 by 1-2 threads to fix the 3D-LED module 3 and the box 4 together. At this time, the gap between the 3D-LED module 3 and the box 4 is e=0, and the 3D-LED module 3 and the box 4 fit tightly.

[0057] A4. When there is a height difference between the 3D-LED modules 3 and it needs to be leveled, continue to rotate the adjustment mechanism 1 for adjustment. The fourth-level threaded rod 105 and the third-level connecting rod 104 are both in a slipping state, and the clockwise rotation is not affected. As the first-level threaded rod 102 rotates, the length of the second-level connecting rod 103 entering the box 4 gradually increases, and the gap e between the 3D-LED module 3 and the box 4 increases, thereby achieving the purpose of adjusting the height;

[0058] The gap removal process includes the following steps:

[0059] B1. When the height adjustment of the adjustment mechanism 1 is cancelled, the driving part 101 rotates counterclockwise by the external force, and the third-level connecting rod 104 and the fourth-level threaded rod 105 of the adjustment mechanism 1 are in a slipping state and rotate freely. As the first-level threaded rod 102 moves outward, the length of the second-level connecting rod 103 in the box 4 decreases, and the gap e between the 3D-LED module 3 and the box 4 decreases;

[0060] B2. When the critical point is reached, a portion of the first-level threaded rod 102 is in the box threaded hole 201, and the fourth-level threaded rod 105 is just in contact with the module threaded hole 203, and the 3D-LED module 3 fits the box 4;

[0061] B3. Continue to rotate counterclockwise, the first-level threaded rod 102 completely leaves the box threaded hole 201, and the fourth-level threaded rod 105 is screwed outward from the module threaded hole 203 until the adjustment mechanism 1 is completely disengaged.

[0062] Although the present invention is described herein with reference to specific embodiments, it should be understood that these embodiments are merely examples of the principles and applications of the present invention. It should therefore be understood that many modifications may be made to the exemplary embodiments and that other arrangements may be devised without departing from the spirit and scope of the present invention as defined by the appended claims. It should be understood that the various dependent claims and features described herein may be combined in a manner different from that described in the original claims. It should also be understood that the features described in conjunction with a single embodiment may be used in other described embodiments.

Claims

1. A 3D screen flatness adjustment device, characterized in that: The invention comprises an adjustment mechanism (1) and a matching hole (2); a box (4) is designed with m×n installation areas, each installation area is provided with a 3D-LED module (3), the m×n 3D-LED modules (3) are spliced ​​into a 3D screen, the 3D-LED module (3) and the box (4) are provided with a matching hole (2), wherein the box (4) is provided with a box threaded hole (201) and a light hole (202) in sequence from the back to the front, and the 3D-LED module (3) is provided with a module threaded hole (203) and a blind hole (204) in succession; the box threaded hole (201), the light hole (202), the module threaded hole (203) and the blind hole (204) are connected, and the lengths are a, b, c and d in sequence, and the diameters are D in sequence. a , D b , D c and D d ; The adjusting mechanism (1) comprises a driving part (101) of a bolt structure and an adjusting rod, wherein the driving part (101) serves as a bolt head, and the adjusting rod comprises, starting from the bolt head, a primary threaded rod (102), a secondary connecting rod (103), a tertiary connecting rod (104) and a quaternary threaded rod (105), and the lengths thereof are a', b', c' and d', and the diameters thereof are D a' , D b' , D c' and D d' ; The adjustment mechanism (1) and the matching hole (2) cooperate to install the 3D-LED module (3) on the box (4) and adjust the gap between the two; the matching relationship between the adjustment mechanism (1) and the matching hole (2) is: The first-level threaded rod (102) is threadedly connected to the box threaded hole (201), and the fourth-level threaded rod (105) is threadedly connected to the module threaded hole (203); The adjusting mechanism (1) and the matching hole (2) have the following limiting conditions: In the formula, e is the gap between the 3D-LED module (3) and the box (4), which serves as the adjustment height of the 3D-LED module (3); ΔD is 1-2 thread lengths.

2. A 3D screen flatness adjustment device according to claim 1, characterized in that: The driving unit (101) rotates clockwise or counterclockwise under the action of an external force to adjust the size of the gap e between the 3D-LED module (3) and the box (4), and the flatness of the 3D screen is adjusted by jointly adjusting the heights of m×n 3D-LED modules (4).

3. A 3D screen flatness adjustment method, implemented based on the 3D screen flatness adjustment device according to claim 1 or 2, characterized in that: The adjustment process includes the gap increasing process and the gap canceling process; The gap-enhancing process includes the following steps: A1. When the adjusting mechanism (1) is height-adjusted, the driving part (101) is rotated clockwise by an external force, and the fourth-level threaded rod (105), the third-level connecting rod (104), and the second-level connecting rod (103) of the adjusting mechanism (1) pass through the box threaded hole (201), and the fourth-level threaded rod (105) of the adjusting mechanism (1) begins to be screwed into the module threaded hole (203). At this time, the first-level threaded rod (102) does not contact the box threaded hole (201); A2, the fourth-level threaded rod (105) of the adjustment mechanism (1) completely passes through the module threaded hole (203) and reaches the blind hole (204). At this time, the third-level connecting rod (104) is in the module threaded hole (203) area, and the fourth-level threaded rod (105) and the blind hole (204), the third-level connecting rod (104) and the module threaded hole (203) are all in a slipped state; A3. The length of the secondary connecting rod (103) of the adjustment mechanism (1) is slightly less than the thickness of the box by 1-2 thread lengths. At this time, the primary threaded rod (102) is screwed into the threaded hole (201) of the box by 1-2 threads, fixing the 3D-LED module (3) and the box (4) together. At this time, the gap e between the 3D-LED module (3) and the box (4) is 0, and the 3D-LED module (3) and the box (4) fit tightly together. A4. When there is a height difference between the 3D-LED modules (3) and leveling is required, the adjusting mechanism (1) is continuously rotated to make adjustments. The fourth-level threaded rod (105) and the third-level connecting rod (104) are both in a slipping state. Clockwise rotation is not affected. As the first-level threaded rod (102) rotates, the length of the second-level connecting rod (103) entering the box (4) gradually increases, and the gap e between the 3D-LED module (3) and the box (4) increases, thereby achieving the purpose of adjusting the height. The gap removal process includes the following steps: B1. When the height adjustment of the adjustment mechanism (1) is cancelled, the driving part (101) rotates counterclockwise due to an external force, and the third-level connecting rod (104) and the fourth-level threaded rod (105) of the adjustment mechanism (1) are in a slipped state and rotate freely. As the first-level threaded rod (102) moves outward, the length of the second-level connecting rod (103) in the box (4) decreases, and the gap e between the 3D-LED module (3) and the box (4) decreases; B2, when the critical point is reached, a portion of the first-level threaded rod (102) is in the box threaded hole (201), and the fourth-level threaded rod (105) just contacts the module threaded hole (203), and the 3D-LED module (3) fits the box (4); B3. Continue to rotate counterclockwise, the first-level threaded rod (102) completely leaves the box threaded hole (201), and the fourth-level threaded rod (105) is screwed outward from the module threaded hole (203) until the adjustment mechanism (1) is completely disengaged.

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