WO2020244191A1

WO2020244191A1 - Led display screen mask and led display screen

Info

Publication number: WO2020244191A1
Application number: PCT/CN2019/126397
Authority: WO
Inventors: 贺金锋; 康鹏飞
Original assignee: 深圳市洲明科技股份有限公司
Priority date: 2019-06-06
Filing date: 2019-12-18
Publication date: 2020-12-10
Also published as: CN209880048U

Abstract

Disclosed are an LED display screen mask (200) and an LED display screen (1), which belong to the technical field of LED display screens. The LED display screen mask (200) comprises a mask main body, and the mask main body is provided with a front surface (210) and a rear surface (220) which are opposite each other, wherein a plurality of rows of transverse grooves (211) and a plurality of columns of longitudinal grooves (212) are arranged in a recessed manner from the front surface (210) to the rear surface (220), each transverse groove (211) communicates with the plurality of longitudinal grooves (212), each longitudinal groove (212) communicates with the plurality of transverse grooves (211), the mask main body is divided into a plurality of lamp hole square tables (21) by the plurality of rows of transverse grooves (211) and the plurality of columns of longitudinal grooves (212), and an LED lamp hole (22) penetrating the front surface (210) and the rear surface (220) is formed in each lamp hole square table (21). Partial protrusion of the mask can be avoided, the lamp expiry rate of lamp beads on the display screen due to being subjected to a force is significantly reduced, and the mask mounting efficiency is improved.

Description

LED display mask and LED display

Technical field

The invention relates to the technical field of LED display screens, in particular to an LED display screen mask and an LED display screen.

Background technique

The main structure of the existing LED display screen mask can be regarded as a base plate hollowed out with a lamp hole, and auxiliary structures such as a brim and a screw hole are added to it. Because the thermal expansion coefficient of the mask and the PCB board is different, the mask with the conventional structure will produce a greater stress on the lamp during the thermal expansion and contraction process, resulting in damage to the lamp or even falling off, and also causing the partial mask to bulge, causing screen shadows and affecting the display effect. At the same time, because the accumulated deformation caused by thermal expansion and contraction in the horizontal and vertical directions of the LED display cannot be eliminated, the conventional structure has strict requirements on the physical parameters of the raw materials, such as the coefficient of expansion, which results in the high cost of the raw materials required and the finished product. The yield rate is relatively low.

technical problem

The technical problem to be solved by the present invention is to provide an LED display screen mask and LED display screen, aiming to solve the problem that the existing mask structure cannot eliminate the accumulated deformation caused by the thermal expansion and contraction of the mask in the horizontal and vertical directions of the LED display screen and the lamp beads. Technical problems such as high dead light rate caused by force.

Technical solutions

In order to achieve the above-mentioned object, the present invention provides an LED display screen mask. The LED display screen mask includes a mask body. The mask body has a front surface and a back surface opposite to each other. The front surface and the back surface are recessed from the front surface toward the back surface. There are multiple rows of horizontal grooves and multiple rows of vertical grooves, each of the horizontal grooves communicates with a plurality of the vertical grooves, each of the vertical grooves communicates with a plurality of the horizontal grooves, the rows of horizontal grooves and The multiple rows of longitudinal grooves divide the mask body into a plurality of lamp hole square tables, and each of the lamp hole square tables is provided with an LED lamp hole penetrating the front surface and the rear surface.

Optionally, the cross-sectional width of the transverse groove gradually decreases from the front surface to the rear surface, and the cross-sectional width of the longitudinal groove gradually decreases from the front surface to the rear surface.

Optionally, a plurality of node bases protrude from the rear surface of the mask body, and each of the node bases is used to connect the intersection of the horizontal groove and the longitudinal groove.

Optionally, in a direction perpendicular to the front surface, the depth of the transverse groove is greater than the distance between the front surface and the rear surface.

Optionally, in a direction perpendicular to the front surface, the depth of the longitudinal groove is greater than the distance between the front surface and the rear surface.

Optionally, a plurality of connecting portions for connecting adjacent lamp hole square tables are protruded from the rear surface of the mask body, each of the connecting portions extends along the longitudinal groove direction, and each of the connecting portions The part is located between two adjacent node bases in the same longitudinal groove direction.

Optionally, the side of the connecting portion away from the rear surface is arc-shaped.

Optionally, a plurality of pairs of elastic clamping parts protrude from the rear surface of the mask body, and each pair of the elastic clamping parts is located on opposite sides of the longitudinal groove direction of each LED lamp hole.

Optionally, the distance between each pair of the elastic clamping portions gradually decreases from the front surface to the rear surface.

In addition, in order to achieve the above-mentioned object, the present invention also provides an LED display screen. The LED display screen includes an LED lamp panel and the above-mentioned LED display mask. The LED lamp panel includes a lamp panel main body and is arranged on the lamp panel. There are a number of LED lamp beads on the main body, and each of the LED lamp beads is located in each corresponding LED lamp hole.

Beneficial effect

The LED display screen mask and the LED display screen provided by the present invention. The mask body of the LED display screen mask has opposite front and back surfaces, and multiple rows of horizontal grooves and multiple rows of longitudinal grooves are recessed from the front surface to the back surface , Each horizontal slot is connected with multiple vertical slots, each vertical slot is connected with multiple horizontal slots, multiple rows of horizontal slots and multiple rows of vertical slots divide the main body of the mask into multiple lamp hole square tables, each lamp hole The square platform is provided with LED light holes penetrating the front surface and the back surface. In this way, the mask can be effectively fixed on the LED lamp panel through the friction force of the LED lamp hole itself on the LED lamp beads, so as to realize the purpose of fixing the surface of the mask without screws, greatly improving the installation efficiency of the mask. At the same time, the mask body is recessed from the front surface to the back surface with multiple rows of horizontal grooves and multiple rows of longitudinal grooves, and they are vertically and horizontally distributed between a number of lamp hole squares. This structure has the function of local deformation coordination and can absorb the horizontal and vertical directions of the mask plane. The elastic deformation makes it difficult to accumulate stress or concentration of deformation, so that there will be no accumulation of deformation that causes the lamp beads to be crushed and destroyed, and there will be no problem of local bulging of the mask due to accumulation of deformation, thereby ensuring the display Flatness and consistency of the screen. It can be seen that this technical solution can prevent partial protrusion of the mask, significantly reduce the dead light rate of the lamp beads on the display screen due to force, and improve the installation efficiency of the mask.

Description of the drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only These are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative labor.

FIG. 1 is a schematic diagram of the split structure of a preferred embodiment of the LED display screen of the present invention.

Fig. 2 is a schematic diagram of another angle split structure of the LED display shown in Fig. 1.

FIG. 3 is a schematic diagram of a partial enlarged structure of the LED display screen shown in FIG. 1.

FIG. 4 is a schematic diagram of a partial enlarged structure of the LED display screen shown in FIG. 2.

Fig. 5 is a schematic diagram of the original state of the cross elastic structure of the LED display shown in Fig. 3.

6 is a schematic diagram of the stretched state of the cross elastic structure of the LED display shown in FIG. 3.

FIG. 7 is a schematic diagram of the contracted state of the cross elastic structure of the LED display screen shown in FIG. 3.

Embodiments of the invention

The specific embodiments of the present invention will be further described below in conjunction with the drawings. It should be noted here that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation to the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

As shown in Figures 1 to 4, this embodiment provides an LED display screen 1. The LED display screen 1 includes an LED light panel 100 and an LED display mask 200, wherein the LED light panel 100 includes a light panel main body 110 and A number of LED lamp beads 120 are arranged on the main body 110 of the lamp board, and the LED display mask 200 includes a main body of the mask. The main body of the mask has a front surface 210 and a rear surface 220 opposed to each other. A plurality of rows of horizontal lines are recessed from the front surface 210 to the rear surface 220. Slot 211 and multiple rows of longitudinal slots 212, each lateral slot 211 is connected to multiple longitudinal slots 212, each longitudinal slot 212 is connected to multiple lateral slots 211, multiple rows of lateral slots 211 and multiple rows of longitudinal slots 212 connect the mask The main body is divided into a plurality of lamp hole square tables 21, and each lamp hole square table 21 is provided with an LED lamp hole 22 penetrating through the front surface 211 and the rear surface 212.

In this embodiment, as shown in FIGS. 1 to 4, the cross-sectional width of the transverse groove 211 gradually decreases from the front surface 210 to the rear surface 220, forming a V-shaped groove structure to effectively enhance its longitudinal elastic deformation ability. The cross-sectional width of the longitudinal groove 212 gradually decreases from the front surface 210 to the rear surface 220, and also forms a V-shaped groove structure to effectively enhance its lateral elastic deformation ability. A plurality of node bases 23 protrude from the rear surface 220 of the mask body, and each node base 221 is used to connect the intersection of the horizontal groove 211 and the longitudinal groove 212. In the direction perpendicular to the front surface 210, the depth of the transverse groove 211 is greater than the distance between the front surface 210 and the rear surface 220. In the direction perpendicular to the front surface 210, the depth of the longitudinal groove 212 is greater than the distance between the front surface 210 and the rear surface 220. In this way, a cross elastic structure 24 can be formed at the intersection of the horizontal groove 211 and the vertical groove 212.

As shown in Figures 5 to 7, which are a schematic diagram of the original state, a schematic diagram of a stretched state, and a schematic diagram of the contracted state of the cross elastic structure 24 in sequence. It can be seen that the cross elastic structure 24 can absorb the elastic deformation in the horizontal and vertical directions of the mask plane to prevent The part of the mask is raised, that is, the normal deformation, so as to ensure the flatness and consistency of the display screen. At the same time, due to the design of the cross elastic structure 24, during the installation and use of the mask, the four corners of the cross elastic structure 24 can be automatically adjusted according to the relative positional relationship between the LED lamp beads 120 and the LED lamp hole 22, so that each LED While the lamp hole 22 is always buckled on the corresponding LED lamp bead 120, it is ensured that the stress on the LED lamp bead 120 is within a reasonable range and will not cause the extrusion damage of the LED lamp bead 120.

As shown in Figures 2 and 4, a plurality of connecting portions 25 for connecting adjacent lamp hole square tables 21 are protruded from the rear surface 220 of the mask body. Each connecting portion 25 extends along the longitudinal groove direction, and each The connecting portion 25 is located between two adjacent node bases 21 in the same longitudinal groove direction. The side of the connecting portion 25 away from the rear surface 220 is arc-shaped. Through the structural arrangement of the connecting portion 25, on the one hand, the connection between two laterally adjacent lamp hole square tables 210 can be enhanced, and on the other hand, the lateral elastic deformation ability can be enhanced. A plurality of pairs of elastic clamping portions 26 are protruded from the rear surface 220 of the mask body, and each pair of elastic clamping portions 26 is located on opposite sides of the longitudinal groove of each LED lamp hole 22. The distance between each pair of elastic clamping portions 26 gradually decreases from the front surface to the rear surface. In this way, when each LED lamp hole 22 is correspondingly clamped with each LED lamp bead 120, the corresponding LED lamp bead 120 can be squeezed through each corresponding pair of elastic clamping portions 26 to enhance the gap between the two. The friction force, and then effectively fix the mask on the LED light board, achieve the purpose of fixing the surface of the mask without screws, greatly improving the installation efficiency of the mask.

The embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, without departing from the principle and spirit of the present invention, various changes, modifications, substitutions and modifications to these embodiments still fall within the protection scope of the present invention.

Industrial applicability

The LED display screen mask and the LED display screen provided by the present invention. The mask body of the LED display screen mask has opposite front and back surfaces, and multiple rows of horizontal grooves and multiple rows of longitudinal grooves are recessed from the front surface to the back surface , Each horizontal slot is connected with multiple vertical slots, each vertical slot is connected with multiple horizontal slots, multiple rows of horizontal slots and multiple rows of vertical slots divide the main body of the mask into multiple lamp hole square tables, each lamp hole The square platform is provided with LED light holes penetrating the front surface and the back surface. In this way, the mask can be effectively fixed on the LED lamp panel through the friction force of the LED lamp hole itself on the LED lamp beads, so as to realize the purpose of fixing the surface of the mask without screws, greatly improving the installation efficiency of the mask. At the same time, the mask body is recessed from the front surface to the back surface with multiple rows of horizontal grooves and multiple rows of longitudinal grooves, and they are vertically and horizontally distributed between a number of lamp hole squares. This structure has the function of local deformation coordination and can absorb the horizontal and vertical directions of the mask plane. The elastic deformation makes it difficult to accumulate stress or concentration of deformation, so that there will be no accumulation of deformation that causes the lamp beads to be crushed and destroyed, and there will be no problem of local bulging of the mask due to accumulation of deformation, thereby ensuring the display Flatness and consistency of the screen. It can be seen that this technical solution can prevent partial protrusion of the mask, significantly reduce the dead light rate of the lamp beads on the display screen due to force, and improve the installation efficiency of the mask, and has industrial applicability.

Claims

An LED display screen mask, the LED display screen mask includes a mask main body, the mask main body has a front surface and a rear surface opposed to each other, and a plurality of rows of horizontal grooves and a plurality of rows are concavely formed from the front surface toward the rear surface Longitudinal grooves, each of the horizontal grooves communicates with a plurality of the vertical grooves, each of the vertical grooves communicates with a plurality of the horizontal grooves, the rows of horizontal grooves and the rows of vertical grooves The mask body is divided into a plurality of lamp hole square tables, and each of the lamp hole square tables is provided with an LED lamp hole penetrating the front surface and the rear surface.
The LED display screen mask of claim 1, wherein the cross-sectional width of the transverse groove gradually decreases from the front surface toward the rear surface, and the cross-sectional width of the longitudinal groove gradually decreases from the front surface toward the rear surface. The rear surface gradually becomes smaller.
The LED display screen mask of claim 1, wherein a plurality of node bases protrude from the rear surface of the mask body, and each of the node bases is used to connect the horizontal groove and the longitudinal groove The intersection.
4. The LED display screen mask of claim 3, wherein, in a direction perpendicular to the front surface, the depth of the transverse groove is greater than the distance between the front surface and the rear surface.
The LED display screen mask of claim 3, wherein, in a direction perpendicular to the front surface, the depth of the longitudinal groove is greater than the distance between the front surface and the rear surface.
The LED display screen mask according to claim 3, wherein a plurality of connecting parts for connecting adjacent lamp hole square tables are protruded from the rear surface of the mask body, and each of the connecting parts extends along the longitudinal direction. The groove direction extends, and each of the connecting parts is located between two adjacent node bases in the same longitudinal groove direction.
The LED display screen mask of claim 6, wherein the side of the connecting portion away from the rear surface is arc-shaped.
The LED display screen mask according to claim 1, wherein a plurality of pairs of elastic holding parts protrude from the rear surface of the mask body, and each pair of the elastic holding parts is located at the edge of each LED lamp hole Opposite sides of the longitudinal groove direction.
8. The LED display screen mask according to claim 8, wherein the distance between each pair of the elastic holding parts gradually decreases from the front surface toward the rear surface.
An LED display screen, the LED display screen comprising an LED light panel and the LED display face mask according to any one of claims 1-9, the LED light panel comprising a light panel main body and arranged on the light panel main body And each of the LED lamp beads is located in each corresponding LED lamp hole.