A fast heat dissipation compensation LED splicing display screen

Abstract

The present invention discloses a fast heat dissipation compensation LED splicing display screen, comprising a plurality of spliced ​​LED screens, each of which is provided with a liquid cooling mechanism; a plurality of thermal expansion and contraction piezoelectric mechanisms, each of which is respectively provided on the liquid cooling mechanism and is in communication with the liquid cooling mechanism; a mutual compensation mechanism connected to the LED screen with one side in a dark area and the other side in a bright area; and a single or two brightness release mechanisms connected to the LED screen with only one side or both sides in the bright area. The present invention dissipates heat from LED screens in different positions as their temperature changes, performs mutual compensation for LED screens with both bright and dark areas, and releases brightness for LED screens with only bright areas, thereby achieving a comprehensive improvement in the performance of the LED splicing display screen, with the beneficial effects of improving display effects, extending service life, and enhancing applicability.

Description

Technical Field

[0001] The present invention relates to the technical field of LED display screens, and more particularly to a fast heat dissipation compensation LED splicing display screen. Background Art

[0002] LED splicing display screens are composed of multiple LED display screens. The existing LED splicing display screens have the following problems during use:

[0003] First, after two adjacent LED displays are spliced ​​together, Figure 7 As shown in the figure, when the projection light of two adjacent LED displays does not intersect, there is a dark area; Figure 8 As shown, when the projection light of two adjacent LED screens intersects, there is a bright area; according to different usage requirements, there are multiple splicing methods for LED splicing screens.

[0004] like Figure 5 As shown in the figure, when multiple LED screens are spliced ​​in a wave shape, the four LED screens in the middle have bright areas on one side and dark areas on the other side, while the LED screens on both sides have bright areas alone; Figure 6 As shown in the figure, when multiple LED screens are spliced ​​in an arc shape, there are bright areas on both sides of the three LED screens in the middle, while the LED screens on the two sides have only bright areas. The existence of bright and dark areas greatly affects the display effect of the LED spliced ​​screen.

[0005] Secondly, most LED splicing screens are set in square or polygonal shapes. The temperature of the LED screen located in the center of the LED splicing screen will be higher than that of the surrounding LED screens during use. High temperature will cause damage to the LED screen, making the service life of the LED splicing screen unable to be guaranteed.

[0006] Therefore, how to comprehensively improve the performance of LED splicing display screens is an urgent problem to be solved by people in this technical field. Summary of the Invention

[0007] An object of the present invention is to solve at least the above problems and / or disadvantages and to provide at least the advantages which will be described hereinafter.

[0008] In order to achieve these objects and other advantages of the present invention, a fast heat dissipation compensation LED splicing display screen is provided, comprising a plurality of LED display screens arranged in a spliced ​​manner, and each of the LED display screens is provided with a liquid cooling mechanism;

[0009] A plurality of thermal expansion and cold contraction piezoelectric mechanisms, each of which is provided on each of the liquid cooling mechanisms, and each of the thermal expansion and cold contraction piezoelectric mechanisms is communicatively connected to the liquid cooling mechanism;

[0010] A mutual compensation mechanism connected to the LED display screen with one side located in the dark area and the other side located in the bright area;

[0011] A single or double brightness release mechanism is connected to the LED display screen with only one side or both sides located in the bright area.

[0012] Preferably, the liquid cooling mechanism comprises:

[0013] A heat dissipation chamber with a heat dissipation liquid inside is provided on the driving module of the LED display screen, and the thermal expansion and cold contraction piezoelectric mechanism is provided on the heat dissipation chamber;

[0014] A liquid cooling circulation drive is communicated with the heat dissipation chamber, and the liquid cooling circulation drive is in communication with the thermal expansion and cold contraction piezoelectric mechanism.

[0015] Preferably, the thermal expansion and contraction piezoelectric mechanism includes:

[0016] a thermal expansion and contraction block bonded to the middle of the outer side of the heat dissipation chamber;

[0017] The piezoelectric system module abuts against the thermal expansion and contraction block, and the piezoelectric system module is communicatively connected with the liquid cooling cycle drive.

[0018] Preferably, the mutual compensation mechanism includes:

[0019] Two first adjustment plates, each disposed on a transparent substrate on either side of the LED display screen, each of the first adjustment plates being provided with a plurality of first adjustment portions, each of the plurality of first adjustment portions corresponding to a plurality of LEDRGBs of the LED display screen, the first adjustment portion being composed of a first transparent area and a first reflective area;

[0020] A plurality of first light guides respectively connect the plurality of adjustment parts on the two first adjustment plates, and the first transparent areas and the first reflective areas of the two connected first adjustment parts have the same proportion.

[0021] Preferably, the brightness release mechanism includes:

[0022] A second adjustment plate having the same structure as the first adjustment plate, wherein the proportions of the second reflection areas of the second adjustment plate are arranged in increasing order from the outside to the inside, and the proportion of the second reflection area on the outermost side of the second adjustment plate is determined by the angle between the projection light beams of two adjacent LED displays;

[0023] One end of a plurality of second light guide tubes is respectively connected to the plurality of second adjustment parts of the second adjustment plate.

[0024] Preferably, the proportion of the outermost reflection area of ​​the second adjustment plate is calculated as follows:

[0025] The angle of the projected light is 2a;

[0026] a / 90°=outermost second reflective area / (second transparent area+second reflective area);

[0027] The second adjustment portion is set to 9 parts, the second transparent area + the second reflective area = 9.

[0028] The present invention has at least the following beneficial effects:

[0029] The present invention dissipates heat for LED display screens at different positions as their temperatures change, compensates for LED display screens with bright and dark areas, and releases brightness for LED display screens with only bright areas, thereby achieving a comprehensive improvement in the performance of the LED spliced ​​display screen, and has the beneficial effects of improving display effects, extending service life, and enhancing applicability.

[0030] Other advantages, objectives and features of the present invention will be reflected in part through the following description, and in part will be understood by those skilled in the art through study and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a structural schematic diagram of the present invention.

[0032] Figure 2 This is a connection diagram of the thermal expansion and contraction piezoelectric mechanism of the present invention.

[0033] Figure 3 It is a structural schematic diagram of the mutual compensation mechanism of the present invention.

[0034] Figure 4 It is a schematic structural diagram of the brightness release mechanism of the present invention.

[0035] Figure 5 This is a schematic diagram of the arrangement of bright and dark areas in the LED splicing display screen of the present invention.

[0036] Figure 6 This is a schematic diagram of the arrangement of the LED splicing display screen of the present invention with only bright areas.

[0037] Figure 7 This is a schematic diagram of the present invention where the angle between two adjacent LED display screens is greater than 90°.

[0038] Figure 8 This is a schematic diagram of the present invention where the angle between two adjacent LED display screens is less than 90°. DETAILED DESCRIPTION

[0039] The present invention will be described in further detail below in conjunction with the accompanying drawings so that those skilled in the art can implement the invention with reference to the description.

[0040] It should be understood that terms such as “having”, “including” and “comprising” used herein do not preclude the existence or addition of one or more other elements or combinations thereof.

[0041] It should be noted that in the description of the present invention, the orientations or positional relationships indicated by terms are based on the orientations or positional relationships shown in the accompanying drawings. These are intended solely to facilitate and simplify the description of the present invention and do not indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0042] In the description of the present invention, unless otherwise clearly stipulated and limited, the terms "installed", "provided with", "sleeved / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be a direct connection or an indirect connection through an intermediate medium. It can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] Furthermore, in the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, a first feature being "above," "above," or "above" a second feature may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. A first feature being "below," "below," or "below" a second feature may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0044] Figures 1 to 6 An implementation form of the present invention is shown, which includes a plurality of LED display screens 1 arranged in a spliced ​​manner, and each of the LED display screens 1 is provided with a liquid cooling mechanism 2;

[0045] a plurality of thermal expansion and cold contraction piezoelectric mechanisms 3, which are respectively arranged on each of the liquid cooling mechanisms 2, and each of the thermal expansion and cold contraction piezoelectric mechanisms 3 is communicatively connected with the liquid cooling mechanism 2;

[0046] A mutual compensation mechanism 4 connected to the LED display screen 1 with one side located in the dark area and the other side located in the bright area;

[0047] A single or two brightness release mechanisms 5 are connected to the LED display screen 1 with only one side or both sides located in the bright area.

[0048] Working principle: When the LED splicing display screen is in use, multiple thermal expansion and contraction piezoelectric mechanisms 3 output different control signals according to the temperature changes of multiple LED display screens 1. The different control signals output by the thermal expansion and contraction piezoelectric mechanisms 3 regulate the flow rate of the heat dissipation liquid of the liquid cooling mechanism 2, thereby achieving variable frequency heat dissipation for LED display screens 1 at different temperatures. The flow rate of the heat dissipation liquid of the liquid cooling mechanism 2 accelerates as the temperature of the LED display screen 1 increases, and slows down as the temperature of the LED display screen 1 decreases, effectively avoiding the temperature increase of the LED display screen 1 at the center of the LED splicing display screen; after multiple LED display screens 1 are spliced ​​to form an LED splicing display screen, there is a bright area where one side of a single LED display screen 1 intersects with the projected light of the adjacent LED display screen 1, and there is a dark area where the other side of the single LED display screen 1 does not intersect with the projected light of another adjacent LED display screen 1. , the mutual compensation mechanism 4 guides the light of the bright area of ​​a single LED display screen 1 to the dark area of ​​the single LED display screen 1 for brightness compensation, and the brightness compensation of the dark area is completed while the bright area is released; after multiple LED display screens 1 are spliced ​​to form an LED spliced ​​display screen, when only one side of the LED display screen 1 is spliced ​​and there is a bright area, or when both sides of the LED display screen 1 are spliced ​​and there is a bright area, the brightness of one side or both sides of the LED display screen 1 is released through a single or two brightness release mechanisms 5. In this technical solution, the LED display screens 1 at different positions are dissipated as their temperature changes, and the LED display screens 1 with bright and dark areas are mutually compensated, and the brightness of the LED display screen 1 with only the bright area is released, thereby achieving a comprehensive improvement in the performance of the LED spliced ​​display screen, which has the beneficial effects of improving display effect, extending service life, and improving applicability.

[0049] As in the above solution, the liquid cooling mechanism 2 includes:

[0050] A heat dissipation chamber 21 with heat dissipation liquid inside is provided on the driving module 11 of the LED display screen 1, and the thermal expansion and contraction piezoelectric mechanism 3 is provided on the heat dissipation chamber 21;

[0051] The liquid cooling circulation drive 22 is communicated with the heat dissipation chamber 21 , and the liquid cooling circulation drive 22 is in communication with the thermal expansion and cold contraction piezoelectric mechanism 3 .

[0052] The liquid-cooled cycle drive 22 includes:

[0053] a liquid storage tank, the output end of which is connected to the input end of the heat dissipation chamber 21;

[0054] The input end of the liquid driving device is communicated with the output end of the heat dissipation chamber 21 , and the output end of the liquid driving device is communicated with the input end of the liquid storage tank.

[0055] Working principle: After the thermal expansion and contraction piezoelectric mechanism 3 expands due to heat, it sends a control signal to the liquid driving device. The liquid driving device accelerates the delivery speed of the heat dissipation liquid, so that the heat dissipation liquid in the liquid storage tank enters the heat dissipation chamber 21 for replacement, and the heat dissipation liquid in the heat dissipation chamber 21 that absorbs heat flows back into the liquid storage tank through the liquid driving device, forming a water-cooling cycle, thereby quickly replacing the heat dissipation liquid in the heat dissipation chamber 21, realizing rapid heat dissipation of the LED display screen 1, which has the advantages of ensuring the heat dissipation effect and the delivery effect.

[0056] As in the above solution, the thermal expansion and cold contraction piezoelectric mechanism 3 includes:

[0057] A thermal expansion and contraction block 31 , which is bonded to the middle position of the outer side of the heat dissipation chamber 21 ;

[0058] The piezoelectric system module 32 abuts against the thermal expansion and contraction block 31 , and the piezoelectric system module 32 is communicatively connected to the liquid cooling cycle drive 22 .

[0059] Working principle: When the LED display screen 1 is in use, the heat emitted by the driving module 11 of the LED display screen 1 is thermally conducted, causing the temperature of the heat dissipation chamber 21 to rise. The heat dissipation chamber 21 conducts the heat to the thermal expansion and contraction block 31. The thermal expansion and contraction block 31 expands due to the heat, squeezing the piezoelectric area of ​​the piezoelectric system module 32, and then the piezoelectric system module 32 generates a voltage value. The voltage value is used as a control signal to perform frequency control on the liquid cooling circulation drive 22, so that the liquid cooling circulation drive 22 can perform frequency control on the replacement speed of the heat dissipation liquid in the heat dissipation chamber 21 according to the temperature change of the LED display screen 1, which has the advantages of ensuring control effect, heat dissipation effect and service life.

[0060] As in the above solution, the mutual compensation mechanism 4 includes:

[0061] Two first adjustment plates 41 are respectively disposed on the transparent substrate 12 on both sides of the LED display screen 1. Each first adjustment plate 41 is provided with a plurality of first adjustment portions 42. The plurality of first adjustment portions 42 are respectively provided corresponding to the plurality of LED RGBs 13 of the LED display screen 1. The first adjustment portion 42 is composed of a first transparent area 421 and a first reflective area 422.

[0062] The plurality of first light guides 43 respectively connect the plurality of first adjustment parts 42 on the two first adjustment plates 41 , and the first transparent areas 421 and the first reflective areas 422 of the two connected adjustment parts 42 have the same proportion.

[0063] Working principle: After multiple LED display screens 1 are spliced ​​together to form an LED spliced ​​display screen, when one side of a single LED display screen 1 intersects with the projection light of an adjacent LED display screen 1 and there is a bright area, and the other side of the single LED display screen 1 does not intersect with the projection light of another adjacent LED display screen 1 and there is a dark area, the first adjustment plate 41 located in the bright area adjusts the light in the bright area through the first transparent areas 421 and the first reflection areas 422 of the multiple first adjustment parts 42, and then releases the brightness of the bright area of ​​the LED display screen 1, and transmits the light released from the bright area to the first adjustment plate 41 located in the dark area through the multiple first light guides 43. The first adjustment plate 41 located in the dark area adjusts the light through the first transparent areas 421 and the first reflection areas 422 of the multiple first adjustment parts 42, and then compensates for the brightness of the dark area of ​​the LED display screen 1, thereby compensating the bright area and the dark area of ​​the LED display screen 1 for each other, which has the advantages of ensuring display effect and compensation effect.

[0064] As in the above solution, the brightness release mechanism 5 includes:

[0065] The second adjustment plate 51 has the same structure as the first adjustment plate 41 , and the proportions of the multiple second reflection areas 532 of the second adjustment plate 51 are arranged in increasing order from the outside to the inside. The proportion of the outermost second reflection area 532 of the second adjustment plate 51 is determined by the angle between the projection light of two adjacent LED display screens 1;

[0066] One end of the plurality of second light guide tubes 52 is respectively connected to the plurality of second adjustment parts 53 of the second adjustment plate 51 .

[0067] Working principle: After multiple LED display screens 1 are spliced ​​to form an LED spliced ​​display screen, when only one side of the LED display screen 1 is spliced ​​and there is a bright area, or when both sides of the LED display screen 1 are spliced ​​and there is a bright area, the light is adjusted by the second transparent areas 531 and the second reflective areas 532 of the multiple second adjustment parts 53, and then the light of the multiple second adjustment parts 53 of the second adjustment plate 51 is released respectively through the multiple second light guides 52. The proportion of the multiple second reflective areas 532 of the second adjustment plate 51 increases from the outside to the inside, and the proportion of the outermost second reflective area 532 of the second adjustment plate 51 is obtained by the angle between the projected light of two adjacent LED display screens 1, so as to ensure the brightness release effect of the second adjustment plate 51 on the bright area, which has the advantages of ensuring the adjustment effect and the brightness release effect.

[0068] As in the above solution, the proportion of the second reflection area 532 of the second adjustment plate 51 close to the included angle is calculated as follows:

[0069] The angle of the projected light is 2a;

[0070] a / 90°=outermost second reflective area 532 / (second transparent area 531+second reflective area 532);

[0071] The second adjustment portion 53 is divided into 9 parts, namely, the second transparent area 531 + the second reflective area 532 = 9.

[0072] When the included angle of the projected light is 2a=20°, a=10°, the ratio of the outermost second reflective area 532 is 1, and the ratio of the second transparent area 531 to the second reflective area 532 of the outermost second adjustment portion 53 is 8:1. The ratios of the second transparent area 531 to the second reflective area 532 of the plurality of second adjustment portions 53 are as follows:

[0073] 8:1, 7:2, 6:3, 5:4..., 1:8 The proportion of the second reflective area 532 increases from the outside to the inside, and the proportion of the second transparent area 531 decreases from the outside to the inside;

[0074] When the included angle of the projected light is 2a=60°, a=30°, the ratio of the outermost second reflective area 532 is 3, the ratio of the second transparent area 531 to the second reflective area 532 of the outermost second adjustment portion 53 is 6:3, and the ratios of the second transparent area 531 to the second reflective area 532 of the plurality of second adjustment portions 53 are as follows:

[0075] 6:3, 5:4, 4:5, 3:6..., 1:8, the proportion of the second reflective area 532 increases from the outside to the inside, and the proportion of the second transparent area 531 decreases from the outside to the inside.

[0076] Although the embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the description and implementation methods. They can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and illustrations shown and described herein.

Claims

1. A fast heat dissipation compensation LED splicing display screen, comprising a plurality of spliced ​​LED display screens, each of which is provided with a liquid cooling mechanism, characterized in that: A plurality of thermal expansion and cold contraction piezoelectric mechanisms, each of which is provided on each of the liquid cooling mechanisms, and each of the thermal expansion and cold contraction piezoelectric mechanisms is communicatively connected to the liquid cooling mechanism; A mutual compensation mechanism connected to the LED display screen with one side located in the dark area and the other side located in the bright area; A single or dual brightness release mechanism connected to the LED display screen located in the bright area on only one side or both sides; The mutual compensation mechanism includes: Two first adjustment plates, each disposed on a transparent substrate on either side of the LED display screen, each of the first adjustment plates being provided with a plurality of first adjustment portions, each of the first adjustment portions corresponding to a plurality of LED RGB settings of the LED display screen, the first adjustment portion being composed of a first transparent area and a first reflective area; a plurality of first light guides, each connecting the plurality of adjustment parts on the two first adjustment plates, wherein the first transparent area and the first reflective area of ​​the two connected first adjustment parts have the same proportion; The brightness release mechanism comprises: A second adjustment plate is provided with a plurality of second adjustment parts, and the second adjustment parts are composed of a second transparent area and a second reflective area. The proportions of the plurality of second reflective areas of the second adjustment plate are arranged in increasing order from the outside to the inside. The proportion of the outermost second reflective area of ​​the second adjustment plate is determined by the angle between the projection light of two adjacent LED displays. The calculation method for the proportion of the outermost reflection area of ​​the second adjustment plate is: The angle of the projected light is 2a; a / 90°=the outermost second reflective area / (the second transparent area + the second reflective area); The second adjustment portion is set to 9 parts, the second transparent area + the second reflective area = 9; One end of a plurality of second light guide tubes is respectively connected to the plurality of second adjustment parts of the second adjustment plate.

2. The rapid heat dissipation compensation LED splicing display screen according to claim 1, characterized in that: The liquid cooling mechanism comprises: A heat dissipation chamber with a heat dissipation liquid inside is provided on the driving module of the LED display screen, and the thermal expansion and cold contraction piezoelectric mechanism is provided on the heat dissipation chamber; A liquid cooling circulation drive is communicated with the heat dissipation chamber, and the liquid cooling circulation drive is in communication with the thermal expansion and cold contraction piezoelectric mechanism.

3. The rapid heat dissipation compensation LED splicing display screen according to claim 2, characterized in that: The thermal expansion and contraction piezoelectric mechanism comprises: a thermal expansion and contraction block bonded to the middle of the outer side of the heat dissipation chamber; The piezoelectric system module abuts against the thermal expansion and contraction block, and the piezoelectric system module is communicatively connected with the liquid cooling cycle drive.

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