CN219302834U

CN219302834U - Mini-LED combined lamp panel, display screen and electronic equipment

Info

Publication number: CN219302834U
Application number: CN202320583711.0U
Authority: CN
Inventors: 杨前; 洪雄杰; 朴希
Original assignee: Wei Kun Technology Shenzhen Co ltd
Current assignee: Wei Kun Technology Shenzhen Co ltd
Priority date: 2023-03-23
Filing date: 2023-03-23
Publication date: 2023-07-04
Anticipated expiration: 2033-03-23

Abstract

The utility model relates to the technical field of Mini-LED display equipment, in particular to a combined Mini-LED lamp panel, a display screen and electronic equipment. The Mini-LED combined lamp panel comprises a plurality of lamp panels, wherein a plurality of Mini-LED lamp beads are uniformly arranged on the lamp panels respectively, and the lamp panels are arranged in an array; adjacent lamp panels are detachably connected through a mortise and tenon structure; the mortise and tenon structure is arranged on the side surface and/or the backlight surface of the lamp panel; the Mini-LED combined lamp panel also comprises a back plate, and the lamp panel and the back plate are bonded through dispensing. The utility model mainly splices the Mini-LED lamp panels with small sizes as the basis into the Mini-LED combined lamp panels with large sizes, and splices the Mini-LED combined lamp panels by arranging the mortise and tenon structures, so that the splicing gap between two adjacent lamp panels is not overlarge, thereby avoiding dark stripes between the adjacent lamp panels to a certain extent, affecting the display effect, and having the advantages of simple structure, convenient assembly into a large-size display screen, convenient disassembly and transportation of products and the like.

Description

Mini-LED combined lamp panel, display screen and electronic equipment

Technical Field

The utility model relates to the technical field of Mini-LED display equipment, in particular to a combined Mini-LED lamp panel, a display screen and electronic equipment.

Background

Mini-LEDs refer to LED chips with dimensions of 100-200 microns, between small pitch LEDs and Micro-LEDs. The Mini-LED is used as a backlight source and applied to a liquid crystal panel, has higher dynamic range, better contrast ratio and wider range than OLED in terms of display effect, and has longer service life, the Mini-LED is thinner in structure, allows larger body space to be reserved for a battery or thin electronic equipment, the screen response speed is much faster than OLED, and the cost is only 70-80% of that of the OLED liquid crystal panel. Therefore, the Mini-LED has the advantages of continuously improving the permeability of the high-end display market, being increasingly widely applied and having obvious advantages in the large-size display market. However, under the current technical conditions, the conventional production size of the Mini-LED single-chip lamp panel is 300mm, and if the Mini-LED single-chip lamp panel is applied to a large-size vehicle-mounted display screen, a television or other large-size display devices, the problem of Mini-LED lamp panel splicing exists. When the Mini-LED lamp panels are spliced, the splicing structure is unstable because of inaccurate assembly and positioning, so that gaps between adjacent lamp panels are uneven, and when the gaps are increased to exceed designed gap values, splicing dark lines (dark stripes) exist on the display panel, so that the display quality is greatly influenced.

Disclosure of Invention

The utility model provides a Mini-LED combined lamp panel, a display screen and electronic equipment, and aims to solve the technical problems that the assembly and positioning of a traditional Mini-LED lamp panel splicing mode are inaccurate, and the display effect of display equipment is affected due to unstable splicing structure.

In a first aspect, the utility model provides a Mini-LED combined lamp panel, which comprises a plurality of lamp panels, wherein a plurality of Mini-LED lamp beads are uniformly arranged on the lamp panels respectively, and the lamp panels are arranged in an array; two adjacent lamp panels are detachably connected through a mortise and tenon structure; the mortise and tenon structure is arranged on the side face and/or the backlight face of the lamp panel; the Mini-LED combined lamp panel further comprises a back plate, and the lamp panel is bonded with the back plate through dispensing.

Preferably, the mortise and tenon structure is a jigsaw tenon or a tongue-and-groove tenon, the jigsaw tenon or the tongue-and-groove tenon comprises a first connecting part and a second connecting part which are respectively arranged between two adjacent lamp panels, and the two adjacent lamp panels are spliced through the cooperation of the first connecting part and the second connecting part.

Preferably, the LED lamp further comprises a metal conducting layer arranged on the side edge where the first connecting portion and the second connecting portion are in contact with each other, and the metal conducting layer is electrically connected with each Mini-LED lamp bead respectively.

Preferably, a positioning component is arranged at the position of the back plate corresponding to each lamp panel, and after the lamp panels are mounted on the back plate through the positioning component, the splicing distance between any two adjacent lamp panels is the same.

Preferably, the positioning assembly comprises a positioning hole arranged on the back plate and a positioning column arranged on the lamp panel, or the positioning column arranged on the back plate and the positioning hole arranged on the lamp panel, and the positioning hole is in interference fit with the positioning column.

Preferably, the positioning holes or positioning columns are uniformly distributed on the back plate in an array manner, and the positioning columns or positioning holes are arranged at corresponding positions of the plurality of lamp panels, which correspond to the positioning holes or the positioning columns of the back plate.

Preferably, the splicing gap between the adjacent lamp panels is 0.4-0.9 mm.

Preferably, the distance between adjacent Mini-LEDs on the same lamp panel is a separation distance, the distance between adjacent Mini-LED lamp beads on the edges of two adjacent lamp panels is a splicing distance, and the splicing distance is not greater than the separation distance.

In a second aspect, the utility model further provides a Mini-LED display screen, which comprises the Mini-LED combined lamp panel in the first aspect.

In a third aspect, the present utility model further provides an electronic device, including the display screen according to the second aspect.

Compared with the prior art, the utility model has at least the following advantages:

1. the utility model provides a Mini-LED combined lamp panel, which comprises a plurality of lamp panels, wherein a plurality of Mini-LED lamp beads are uniformly arranged on the lamp panels respectively, and the lamp panels are distributed in an array; adjacent lamp panels are detachably connected through a mortise and tenon structure; the distance between adjacent Mini-LEDs on the same lamp panel is the interval distance, the distance between adjacent Mini-LED lamp beads on the edges of the adjacent lamp panels is the splicing distance, and the splicing distance is not greater than the interval distance. It can be appreciated that the conventional splicing manner generally directly affects the display effect of the Mini-LED after splicing, such as light leakage or black lines, due to the positioning problem of the lamp panels, the structural problem of splicing, and the gap problem between the lamp panels. According to the Mini-LED combined lamp panel provided by the utility model, the lamp panels are spliced through the mortise and tenon structure, the structure between the lamp panels is more stable, the gap is smaller, and the splice gap is smaller by limiting the distance between adjacent Mini-LED lamp beads on the edges of adjacent lamp panels to be within the distance between adjacent Mini-LED lamp beads on the same lamp panel, so that the occurrence of splice dark lines can be effectively prevented, and the display effect of display equipment is further ensured.

2. The utility model provides a mortise and tenon structure in a Mini-LED combined lamp panel, which is a jigsaw tenon or a tongue-and-groove tenon, wherein the jigsaw tenon or the tongue-and-groove tenon comprises a first connecting part and a second connecting part which are respectively arranged between two adjacent lamp panels, and the two adjacent lamp panels are spliced through the cooperation of the first connecting part and the second connecting part. It can be understood that the thickness of the lamp panel is thinner, so that the structure is simple, and the jigsaw puzzle tongue and the tongue with higher space utilization rate are more suitable for the use scene.

3. The utility model provides a Mini-LED combined lamp panel, wherein metal conductive layers are arranged on the side edges of a first connecting part and a second connecting part, which are in contact with each other, and are respectively and electrically connected with respective Mini-LED lamp beads. It can be understood that electric connection between the lamp plates of mutual concatenation can transmit the signal of telecommunication of flowing through each lamp plate to reduce the connecting piece between lamp plate and the main control board, need not to be connected every lamp plate all with the main control board, both reduced the quantity of connecting piece on the lamp plate, reduced the lamp plate area, reduced the use quantity of connecting piece on the main control board simultaneously, reduced the area of main control board, reduced the difficult way of overall arrangement wiring of main control board, thereby reduced display device's manufacturing cost.

4. The utility model provides a Mini-LED combined lamp panel, which also comprises a back plate, wherein a positioning assembly is arranged at the position of the back plate corresponding to each lamp panel, and after the lamp panels are installed on the back plate through the positioning assembly, the splicing distance between any two adjacent lamp panels is the same. It can be understood that by arranging the positioning components on the back plate and the Mini-LED lamp panels, the gap widths among the Mini-LED lamp panels after the splicing is completed are the same, so that the phenomenon that the gaps among adjacent lamp panels are increased due to inaccurate assembly and positioning when the Mini-LED lamp panels are spliced in the prior art is avoided, and the phenomenon that the display panel is spliced with dark lines is caused, and the quality of products is greatly improved. The Mini-LED combined lamp panel is provided with the back panel structure, and has good display effect without spliced dark lines after being assembled.

5. The utility model provides a positioning component of a Mini-LED combined lamp panel, which comprises a positioning hole arranged on a back plate and a positioning column arranged on the lamp panel, or the positioning column arranged on the back plate and the positioning hole arranged on the lamp panel, wherein the positioning hole and the positioning column are in interference fit. It can be understood that the shaft hole matching structure is stable and simple to realize, and more or less errors can exist in the manufacturing process for the lamp panels with the same size, so that the lamp panels can be timely replaced only by matching the lamp panels with the back plate to judge whether the lamp panels meet the requirements or not when the lamp panels are installed and used.

6. The utility model provides a Mini-LED combined lamp panel, wherein positioning holes or positioning columns are uniformly distributed on a back plate in an array manner, and the positioning columns or the positioning holes are arranged at corresponding positions on a plurality of lamp panels. It will be appreciated that the uniform array distribution and placement of the same locations on the lamp panel is for unifying manufacturing criteria while also facilitating installation.

7. The utility model provides a Mini-LED combined lamp panel, wherein the splicing gap is 0.4-0.9 mm. It will be appreciated that this size range is also technically easy to implement while avoiding the occurrence of a spliced black line.

Drawings

Fig. 1 is a schematic diagram of an explosion structure of a Mini-LED combined lamp panel according to a first embodiment of the present utility model.

Fig. 2 is a schematic diagram of a splicing structure of a Mini-LED combined lamp panel according to a first embodiment of the present utility model.

Fig. 3 is a schematic diagram of an explosion structure of a Mini-LED combined lamp panel according to a first embodiment of the present utility model.

Fig. 4 is a schematic diagram of a tongue-and-groove structure of a Mini-LED combined lamp panel according to a first embodiment of the present utility model.

Fig. 5 is a schematic diagram of a tongue-and-groove structure of a Mini-LED combined lamp panel according to a first embodiment of the present utility model.

Fig. 6 is a schematic diagram of a back plate structure of a Mini-LED combined lamp panel according to the first embodiment of the present utility model.

The attached drawings are used for identifying and describing:

1. a lamp panel; 2. Mini-LED lamp beads; 3. a first connection portion; 4. a second connecting portion; 5. a metal conductive layer; 6. a back plate;

11. a first contact surface; 12. a second contact surface; 13. a third contact surface; 14. a fourth contact surface; 15. a fifth contact surface; 60. a positioning assembly;

601. positioning holes; 602. positioning columns;

s: a separation distance;

l: splice distance.

Detailed Description

For the purpose of making the technical solution and advantages of the present utility model more apparent, the present utility model will be further described in detail below with reference to the accompanying drawings and examples of implementation. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

It should be noted that the terms "first" and "second" and the like in the description and the claims of the present utility model are used for distinguishing between different objects and not for describing a particular sequential order.

It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.

In the present utility model, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate an azimuth or a positional relationship based on that shown in the drawings. These terms are only used to better describe the present utility model and its embodiments and are not intended to limit the scope of the indicated devices, elements or components to the particular orientations or to configure and operate in the particular orientations.

Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in the present utility model will be understood by those of ordinary skill in the art according to the specific circumstances.

Furthermore, the terms "mounted," "disposed," "configured," "connected," and "connected" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements, or components. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Referring to fig. 1 to 3, a first embodiment of the present utility model provides a Mini-LED combined lamp panel, which includes a plurality of lamp panels 1, wherein a plurality of Mini-LED lamp beads 2 are uniformly arranged on the lamp panels 1, and the lamp panels 1 are distributed in an array; adjacent lamp panels 1 are detachably connected through a mortise and tenon structure; the mortise and tenon structure is arranged on the side face and/or the backlight face of the lamp panel. The distance between adjacent Mini-LED lamp beads 2 on the same lamp panel 1 is a spacing distance S, the distance between adjacent Mini-LED lamp beads 2 on the edges of the adjacent lamp panels is a splicing distance L, and the splicing distance L is not greater than the spacing distance S. It can be appreciated that, the conventional splicing manner generally directly affects the display effect of the Mini-LED lamp beads 2 after splicing, such as light leakage or black lines, due to the positioning problem of the lamp panels 1, the structural problem of splicing, and the gap problem between the lamp panels 1. The Mini-LED combined lamp panel provided by the utility model has the advantages that the lamp panels are spliced through the mortise and tenon structure, the structure between the lamp panels is more stable, and the splice gap is smaller by limiting the distance between the adjacent Mini-LED lamp beads 2 on the edge of the adjacent lamp panels to be within the distance between the adjacent Mini-LED lamp beads 2 on the same lamp panel 1, so that the occurrence of splice dark lines can be effectively prevented, and the display effect of display equipment is further ensured.

Preferably, the splice distance L is smaller than the separation distance S. When the single lamp panel is manufactured, the distance between the Mini-LED lamp beads close to the edge of the lamp panel and the edge of the lamp panel is ensured to be smaller than half of the distance between two adjacent Mini-LED lamp beads. Preferably, the distance between a Mini-LED lamp bead near the edge of the lamp panel and the edge of the lamp panel is 1 to 2mm smaller than the distance between two adjacent Mini-LED lamp beads. Specifically, the distance between the Mini-LED lamp beads near the edge of the lamp panel and the edge of the lamp panel is smaller than the distance between two adjacent Mini-LED lamp beads by 1mm.

It can be understood that the mortise and tenon structures arranged on the side surface or the back surface of the lamp panel 1 can effectively reduce the gap between two adjacent lamp panels and improve the display quality of the display device. With continued reference to fig. 2, in some embodiments, the mortise and tenon structure is a jigsaw tenon or a tongue-and-groove tenon, and the jigsaw tenon or the tongue-and-groove tenon includes a first connecting portion 3 and a second connecting portion 4 respectively disposed between two adjacent lamp panels, and the two adjacent lamp panels are spliced by matching the first connecting portion 3 and the second connecting portion 4. It can be understood that the thickness of the lamp panel is thinner, so that the structure is simple, and the jigsaw puzzle tongue and the tongue with higher space utilization rate are more suitable for the use scene.

In some embodiments, the sides of the first connection part 3 and the second connection part 4, which are in contact with each other, are provided with metal conductive layers 5, and the metal conductive layers 5 are electrically connected with the respective Mini-LEDs, respectively. It can be understood that electric connection between the lamp plates of mutual concatenation can transmit the signal of telecommunication of flowing through each lamp plate to reduce the connecting piece between lamp plate and the main control board, need not to be connected every lamp plate all with the main control board, both reduced the quantity of connecting piece on the lamp plate, reduced the lamp plate area, reduced the use quantity of connecting piece on the main control board simultaneously, reduced the area of main control board, reduced the difficult way of overall arrangement wiring of main control board, thereby reduced display device's manufacturing cost.

Further, signals transmitted between the mutually spliced lamp panels through the metal conductive layers 5 are control signals and/or data signals.

Specifically, referring to fig. 2, when the mortise and tenon structure is a jigsaw mortise, the first connecting portion 3 is a protrusion, also called a "tenon", and the second connecting portion 4 is a groove, also called a "mortise", at this time, the metal conductive layer 5 is disposed on a surface where the protrusion and the groove contact each other, and when the splicing of two adjacent lamp panels is completed, the two lamp panels are electrically connected through the metal conductive layer 5.

Further, two or more mortise and tenon structures are arranged on the back or side surface of the lamp panel 1.

Furthermore, in order to ensure that the electrical connection of the metal conductive layer 5 is more stable, a groove is formed in the protrusion of the first connecting portion 3, and a protrusion is formed in the groove of the second connecting portion 4, so that the metal conductivity caused by a fit gap generated by manufacturing process difference is prevented, the stability of the electrical connection between two adjacent lamp panels is ensured, and the display quality of the Mini-LED combined lamp panel is improved.

Referring to fig. 3, when the mortise and tenon structure is a mortise and tenon, the contact portion of two adjacent lamp panels includes a first contact surface 11, a second contact surface 12 and a third contact surface 13, wherein an included angle between the first contact surface 11 and/or the third contact surface 13 and the second contact surface 12 is 90 degrees or less. Preferably, the angle between the first contact surface 11 and/or the third contact surface 13 and the second contact surface 12 is smaller than 90 degrees. It can be appreciated that when the included angle is smaller than 90 degrees, the mutually spliced lamp panels are more stable, and at this time, the metal conductive layer 5 is disposed on the first contact surface 11 and/or the second contact surface 12 and/or the third contact surface 13. As a variant, the tongue-and-groove as shown in fig. 4 further comprises a fourth contact surface 14 and a fifth contact surface 15, and a sixth contact surface (not shown) and a seventh contact surface (not shown) opposite thereto, and the metal conductive layer 5 may also be provided on the fourth contact surface 14 and/or the fifth contact surface 15 and/or the sixth contact surface and/or the seventh contact surface.

It can be understood that the structure of each lamp panel contacting with another lamp panel may be the first connection portion 3 or the second connection portion 4, that is, the splicing structure of one lamp panel and another lamp panel in a certain direction may be the first connection portion 3 or the second connection portion 4, and there are various combinations of connection structures of lamp panels manufactured under the standard in different directions.

In some embodiments, the Mini-LED combined lamp panel further comprises a back plate 6, and the lamp panel 1 and the back plate 6 are adhered through dispensing. The back plate 6 is provided with a locating component 60 corresponding to the position of each lamp panel, and after the lamp panels are installed on the back plate 6 through the locating component 60, the splicing distance L between any two adjacent lamp panels is the same. It can be understood that by arranging the positioning assembly 60 on the back plate 6 and the Mini-LED lamp panels, the gap widths among the Mini-LED lamp panels after the splicing is completed are the same, so that the phenomenon that the gaps among adjacent lamp panels are increased due to inaccurate assembly positioning when the Mini-LED lamp panels are spliced in the prior art is avoided, and the phenomenon that the display panel is spliced with dark lines is caused, and the quality of products is greatly improved. The Mini-LED combined lamp panel is provided with the back plate 6 structure, and has good display effect without spliced dark lines after assembly.

Further, the positioning assembly 60 includes a positioning hole 601 disposed on the back plate 6 and a positioning post 602 disposed on the light plate, or the positioning post 602 disposed on the back plate 6 and the positioning hole 601 disposed on the light plate, and the positioning hole 601 and the positioning post 602 are in interference fit. It can be understood that the shaft hole matching structure is stable and simple to implement, and more or less errors are likely to exist in the manufacturing process for the lamp panels with the same size, so that the lamp panels can be timely replaced only by matching the lamp panels with the back plate 6 when the lamp panels are installed and used, whether the lamp panels meet the requirements can be known, if the size deviation is too large, the lamp panels cannot be aligned with the shaft holes.

Preferably, the positioning holes 601 or the positioning posts 602 are uniformly distributed in an array on the back plate 6, and the positioning posts 602 or the positioning holes 601 are disposed at the same positions on a plurality of lamp panels. It will be appreciated that the uniform array distribution and placement of the same locations on the lamp panel is for unifying manufacturing criteria while also facilitating installation.

In some embodiments, the splice gap of the Mini-LED combined lamp panel is 0.4-0.9 mm. It will be appreciated that this size range is also technically easy to implement while avoiding the occurrence of a spliced black line. Preferably, the splice gap is 0.5-0.7 mm. Specifically, the splice gap between adjacent lamp panels is 0.5mm.

The second embodiment of the utility model also provides a Mini-LED display screen, which comprises the main control board and the Mini-LED combined lamp panels, and because the spliced lamp panels in the Mini-LED combined lamp panels are electrically connected and can be used for transmitting common signals flowing through the lamp panels, the main control board does not need to be connected with each lamp panel by independently arranging a connecting piece, the area of the main control board is reduced, the difficulty in layout and wiring of the main control board is reduced, and the production cost of the Mini-LED display screen is reduced.

The third embodiment of the utility model also provides electronic equipment, which comprises the Mini-LED display screen.

6. The utility model provides a Mini-LED combined lamp panel, wherein positioning holes or positioning columns are uniformly distributed on a back plate in an array manner, and the positioning columns or the positioning holes are arranged at corresponding positions on a plurality of lamp panels. It will be appreciated that the uniform array distribution and corresponding placement on the lamp panel is for unifying manufacturing criteria while also facilitating installation.

In some embodiments, the electronic device may be an interactive tablet with a display screen, a smart blackboard, a smart whiteboard, a television wall, an in-vehicle display, or the like. The connection mode of the spliced lamp panel and the main control panel can be wire connection, connector connection or other wired or wireless connection modes, and the connection mode is not limited in the utility model.

Claims

1. The Mini-LED combined lamp panel is characterized in that: the LED lamp comprises a plurality of lamp panels, wherein a plurality of Mini-LED lamp beads are uniformly arranged on the lamp panels respectively, and the lamp panels are arranged in an array; two adjacent lamp panels are detachably connected through a mortise and tenon structure; the mortise and tenon structure is arranged on the side face and/or the backlight face of the lamp panel; the Mini-LED combined lamp panel further comprises a back plate, and the lamp panel is bonded with the back plate through dispensing.

2. The Mini-LED combination light panel of claim 1, wherein: the mortise and tenon joint structure is a jigsaw mortise or tenon joint, and the jigsaw mortise or tenon joint comprises a first connecting part and a second connecting part which are respectively arranged between two adjacent lamp panels, and the two adjacent lamp panels are spliced through the cooperation of the first connecting part and the second connecting part.

3. The Mini-LED combination light panel of claim 2, wherein: the LED lamp further comprises metal conducting layers arranged on the sides, where the first connecting portions and the second connecting portions are in contact with each other, of the sides, and the metal conducting layers are respectively and electrically connected with the Mini-LED lamp beads.

4. The Mini-LED combination light panel of claim 1, wherein: the back plate is provided with a positioning assembly corresponding to the position of each lamp panel, and after the lamp panels are installed on the back plate through the positioning assembly, the splicing distance between any two adjacent lamp panels is the same.

5. The Mini-LED combination light panel of claim 4, wherein: the positioning assembly comprises a positioning hole arranged on the back plate and a positioning column arranged on the lamp panel, or the positioning column arranged on the back plate and the positioning hole arranged on the lamp panel, and the positioning hole is in interference fit with the positioning column.

6. The Mini-LED combination light panel of claim 5, wherein: the positioning holes or the positioning columns are uniformly distributed on the back plate in an array mode, and the positioning columns or the positioning holes are arranged at corresponding positions of the plurality of lamp panels, corresponding to the positioning holes or the positioning columns of the back plate.

7. The Mini-LED combination light panel of claim 1, wherein: the splicing gap between the adjacent lamp panels is 0.4-0.9 mm.

8. The Mini-LED combination light panel of claim 1, wherein: the distance between adjacent Mini-LED lamp beads on the same lamp panel is a separation distance, the distance between adjacent Mini-LED lamp beads on the edges of two adjacent lamp panels is a splicing distance, and the splicing distance is not greater than the separation distance.

9. The Mini-LED display screen is characterized in that: a Mini-LED combination light panel comprising any one of claims 1-8.

10. An electronic device, characterized in that: a Mini-LED display screen comprising the light source of claim 9.