CN217467922U

CN217467922U - Display screen module and display screen

Info

Publication number: CN217467922U
Application number: CN202221208266.1U
Authority: CN
Inventors: 王成; 解培亮; 唐朝剑; 肖道粲
Original assignee: Shenzhen Absen Optoelectronic Co Ltd
Current assignee: Shenzhen Absen Optoelectronic Co Ltd
Priority date: 2022-05-19
Filing date: 2022-05-19
Publication date: 2022-09-20
Anticipated expiration: 2032-05-19

Abstract

The utility model discloses a display screen module and display screen, this display screen module include the drain pan and install the display screen lamp plate on the drain pan, and the lower surface of display screen lamp plate is provided with the mounting, the mounting includes first connecting portion and second connecting portion from top to bottom in proper order, the radial sectional area of first connecting portion is greater than the radial sectional area of second connecting portion, the lower terminal surface of first connecting portion is the assembly face, the assembly face is on a parallel with the screen face setting of display screen lamp plate, and the interval between the screen face of assembly face and the corresponding display screen lamp plate is the fixed value, the drain pan with the assembly face butt, the second connecting portion with the drain pan interval sets up, and with the drain pan can dismantle the connection; after the bottom shell is abutted to the assembly face, the fixing piece can be effectively limited, and the deformation of the screen face caused by the fact that the fixing piece is stressed and righted in the installation process is avoided, so that the flatness of the screen face of the display screen module is ensured.

Description

Display screen module and display screen

Technical Field

The utility model relates to a display device technical field, in particular to display screen module and a display screen.

Background

COB display screen is formed on installing the box by a plurality of COB display module assemblies, and COB display module assembly generally is formed by the equipment of polylith COB display screen lamp plate and drain pan. In the production and assembly processes of the COB display module, the flatness of the screen surface is easily influenced by factors such as thickness tolerance of raw materials, the uniformity degree of an encapsulation colloid, cold and hot deformation of parts and the like, wherein a fixing piece is used as an assembly fixing structure of the COB display screen lamp plate and the bottom shell and is generally welded on the back of the COB display screen lamp plate, all parts can be skewed in different degrees during welding, and the defect cannot be avoided due to the limitation of the existing welding technology;

current COB display screen lamp plate and drain pan package assembly, generally regard as assembly face and drain pan butt with the up end of mounting, and connect drain pan and COB display screen lamp plate through the mode of twisting the screw, this mounting structure twists the in-process of mounting at the screw, the mounting can the atress be held up by force, and then arouse the deformation distortion of COB display module group screen face, directly lead to COB display screen lamp plate screen face roughness can't satisfy the user demand, seriously reduce the display effect of display screen, influence user's use and experience.

It is seen that improvements and enhancements to the prior art are needed.

SUMMERY OF THE UTILITY MODEL

In view of the foregoing prior art's weak point, the utility model aims to provide a display screen module and display screen aims at solving among the prior art technical problem that is difficult to guarantee the roughness of display screen in the LED display screen production process.

In order to achieve the purpose, the utility model adopts the following technical proposal:

the utility model provides a display screen module, include:

a bottom shell, a bottom cover and a bottom cover,

a display screen lamp panel mounted on the bottom shell,

the lower surface of the display screen lamp panel is provided with a fixing piece,

the fixing piece sequentially comprises a first connecting part and a second connecting part from top to bottom, the radial sectional area of the first connecting part is larger than that of the second connecting part, the lower end face of the first connecting part is an assembly face, the assembly face is parallel to the panel of the display screen lamp panel, the distance between the assembly face and the panel of the corresponding display screen lamp panel is a fixed value, and the bottom shell is abutted to the assembly face,

the second connecting portion is arranged at an interval with the bottom shell and detachably connected with the bottom shell.

In the display screen module, the whole fixed part is columnar, the first connecting part and the second connecting part are coaxially arranged, and the second connecting part is provided with an axial screw hole.

In the display screen module, be provided with a plurality of holes of dodging on the drain pan, the second connecting portion stretch into set up in the hole of dodging, dodge the hole up end be the reference plane all around, the reference plane with the assembly surface offsets.

The display screen module is characterized in that the display screen module further comprises an installation screw, a limiting structure is arranged below the avoidance hole, and the installation screw penetrates through the limiting structure and is in threaded connection with the second connecting portion.

In the display screen module, the limiting structure comprises a via hole and a limiting hole, the via hole is communicated with the limiting hole and the avoiding hole, and the via hole, the limiting hole and the avoiding hole are coaxially arranged; the aperture of the through hole is larger than the outer diameter of the screw part of the mounting screw and smaller than the outer diameter of the screw cap part of the mounting screw; the aperture of the limiting hole is larger than the outer diameter of the nut part of the mounting screw.

In the display screen module, the upper part of the first connecting part comprises a positioning part and a fixing part, and the middle of the positioning part protrudes upwards; the display screen lamp panel further comprises a circuit board, a positioning groove is formed in the circuit board, and the positioning part is arranged in the positioning groove; an annular groove is arranged between the positioning part and the fixing part.

In the display screen module, the bottom shell and the circuit board are arranged at intervals.

In the display screen module, still be equipped with the magnetism thing on the drain pan, the magnetism thing is used for with the display screen module is fixed to on the box.

The utility model also provides a display screen, include:

the display screen module of any one of the above;

the bottom shell of the display screen module is connected with the box body, so that the display screen module is arranged on the box body.

Has the advantages that:

the utility model provides a display screen module, set up to cascaded structure through first connecting portion and the second connecting portion with the mounting, make the lower terminal surface of first connecting portion as the assembly face, this assembly face and the face parallel arrangement of the face of display screen lamp plate, and the distance between the face of assembly face and the face of display screen lamp plate is the fixed value, make drain pan and this assembly face butt again, thereby it is effective spacing to the mounting to realize, can accurate locking assembly face to the distance of the face of display screen lamp plate after connecting the drain pan through the second connecting portion, it arouses face deformation to avoid the screw to twist the back to force the mounting. The module has the advantages of simple structure, low processing cost, good improvement effect and capability of effectively improving the flatness of the display screen module. The second connecting portion set up with the drain pan interval for the drain pan only contacts through the assembly face of mounting with the display screen module, avoids drain pan and second connecting portion contact to cause the multi-direction atress of mounting, thereby influences the roughness of display screen lamp plate.

The utility model also provides a display screen is through adopting above-mentioned display screen module for the screen face of its display screen lamp plate is accurate to the distance size of assembly face, eliminates the error accumulation that the manufacturing link caused, and the roughness is good, and the error is less than 0.05mm, has avoided because the defective rate that the roughness produced.

Drawings

Fig. 1 is a partial cross-sectional view of the display screen module provided by the present invention.

Fig. 2 is the utility model provides a structural schematic diagram of display screen lamp plate.

Fig. 3 is the utility model provides a local structure schematic diagram of display screen lamp plate.

Fig. 4 is a schematic structural diagram of the bottom case provided by the present invention.

Fig. 5 is an enlarged view of a portion a in fig. 4.

Fig. 6 is a partial cross-sectional view of the display screen provided by the present invention.

In the drawings: 1-bottom shell, 11-avoidance hole, 12-datum plane, 13-limiting structure, 131-via hole, 132-limiting hole, 14-magnetic object, 2-display screen lamp panel, 21-fixing piece, 211-first connecting part, 2111-positioning part, 2112-fixing part, 2113-annular groove, 2114-assembling surface, 212-second connecting part, 2121-screw hole, 22-circuit board, 221-positioning groove, 23-colloid, 3-mounting screw, 4-box body and 41-magnet.

Detailed Description

The utility model provides a display screen module and display screen, for making the utility model discloses a purpose, technical scheme and effect are clearer, clear and definite, and it is right that the embodiment is lifted to follow with reference to the attached drawing the utility model discloses further detailed description. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation and a specific orientation configuration and operation, and thus, should not be construed as limiting the present invention. Furthermore, "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "a plurality" means two or more.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other suitable relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

The COB display screen has a small dot spacing, and therefore, the requirement on flatness is high and is generally less than 0.05 mm. Please refer to fig. 1-3 in order to obtain the display screen with high flatness, the utility model provides a display screen module, which can be a COB display screen module or other LED display screen modules.

This display screen module includes drain pan 1 and display screen lamp plate 2.

The display screen module can include a display screen lamp plate 2, perhaps comprises 2 concatenations of polylith display screen lamp plate, and polylith display screen lamp plate 2 can display arrange for the rectangle form or constitute other shapes according to actual need.

The display screen lamp plate 2 is fixed on the bottom shell 1 respectively, the lower surface of the display screen lamp plate 2 is provided with a fixing piece 21, the fixing piece 21 sequentially comprises a first connecting portion 211 and a second connecting portion 212 from top to bottom, the radial cross-sectional area of the first connecting portion 211 is larger than that of the second connecting portion 212, the lower end face of the first connecting portion 211 is an assembling face 2114, and the bottom shell 1 is abutted to the assembling face 2114.

It should be understood that the top-down direction herein refers to a direction close to the screen of the display panel 2, and the bottom direction refers to a direction away from the screen of the display panel 2.

Specifically, display screen lamp plate 2 is including circuit board 22, and this circuit board 22 can be the PCB board, and in display screen lamp plate 2, the positive paster welding chip of PCB board, the surface package colloid 23 of chip, the back welding control device of PCB board, mounting 21 is fixed at the back of PCB board equally, and is general, and this fixed mode is the welding.

This assembly surface 2114 is parallel to the setting of the screen of display screen lamp plate 2, and the interval between the screen of assembly surface 2114 and the display screen lamp plate 2 that corresponds is the fixed value, and this fixed value can adjust the setting according to actual need. Therefore, when the plurality of display panel lamp panels 2 are arranged to form the display panel module, the lower end surface of each second connecting portion 212 is located on the same plane and is parallel to the screen surface of the display panel lamp panel 2. The event is spacing through drain pan 1 and circuit board 22 respectively with the upper and lower terminal surface of the first connecting portion 211 of mounting 21, makes terminal surface direct contact under drain pan 1 and the first connecting portion 211, and when second connecting portion 212 was fixed with drain pan 1, because drain pan 1 is to the limiting displacement of first connecting portion 211, can prevent effectively that display screen lamp plate 2 from taking place the distortion and then influencing its roughness, and the distance of terminal surface to colloid 23 surface under the assurance first connecting portion 211 is accurate.

The fixing member 21 is generally cylindrical, in one embodiment, the assembling surface 2114 is annular, the second connecting portion 212 is cylindrical, the first connecting portion 211 and the second connecting portion 212 are coaxially arranged, and the second connecting portion 212 is provided with an axial screw hole 2121; the first connecting portion 211 and the second connecting portion 212 are coaxial and have a stepped shaft shape, so that the fixing member 21 can be uniformly stressed when the fixing member 21 is connected with the base. Further, the fixing member 21 is made of copper in order to reduce the resistance. The screw holes 2121 formed in the second connecting portion 212 facilitate the assembly and disassembly of the bottom housing 1 and the fixing member 21.

It should be noted that the mounting surface 2114 may be configured as a polygon or other symmetrically distributed configuration.

Further, as shown in fig. 4 and 5, the bottom case 1 is provided with a plurality of avoiding holes 11, a reference plane 12 is formed around the avoiding holes 11, the second connecting portion 212 is disposed in the avoiding holes 11, and the assembling surface 2114 abuts against the reference plane 12. Fixing pieces 21 on a plurality of display screen lamp plates 2 correspond to a plurality of avoiding holes 11, the avoiding holes 11 are through holes, and the connecting pieces for fixing the second connecting portions 212 and the bottom case 1 can penetrate through the avoiding holes 11 and be connected with screw holes 2121 on the second connecting portions 212 of the fixing pieces 21.

In order to ensure the limiting effect of the bottom case 1 on the first connecting portion 211 of the fixing member 21, the side wall of the first connecting portion 211 is not in contact with the bottom case 1 and the circuit board 22, and the second connecting portion 212 is not in contact with the bottom case 1, that is, the avoiding hole 11 is larger than the outer diameter of the second connecting portion 212. There is no direct contact between the bottom case 1 and the circuit board 22, the bottom case 1 and the circuit board 22 are connected only through the first connecting portion 211, and a gap is left between the second connecting portion 212 and the avoiding hole 11, so that a force generated when the connecting member fixes the bottom case 1 on the fixing member 21 is uniformly distributed on the assembling surface 2114, and the second connecting portion 212 has a certain displacement space in the transverse direction.

Preferably, in order to further improve the flatness of the display panel lamp panel 2, the assembling surface 2114 of the fixing member 21 and the reference plane 12 of the bottom case 1 are both processed by CNC. The assembly surface 2114 of the fixing member 21 can be subjected to CNC machining after being welded on the circuit board 22, so that error accumulation caused by a manufacturing process can be eliminated more accurately.

In one embodiment, the connecting member connecting the bottom case 1 and the fixing member 22 is a mounting screw 3, the limiting structure 13 is disposed below the avoiding hole 11, the mounting screw 3 passes through the limiting structure 13 to be in threaded connection with the screw hole 2121 of the second connecting portion 212, and in a preferred embodiment, a gap is left between the mounting screw 3 and the top of the screw hole 2121, so that the influence of the mounting screw 3 being screwed into the fixing member 22 in a skew manner is reduced, and the flatness of the display screen module is affected.

Specifically, limit structure 13 includes via hole 131 and spacing hole 132, via hole 131 intercommunication spacing hole 132 with dodge hole 11, via hole 131, spacing hole 132 and dodge the coaxial setting of hole 11.

The aperture of the through hole 131 is larger than the outer diameter of the screw part of the mounting screw 3 and smaller than the outer diameter of the screw cap part of the mounting screw 3; the hole diameter of the stopper hole 132 is larger than the outer diameter of the nut portion of the mounting screw 3.

The via hole 131 does not contact the mounting screw 3, and does not generate resistance to the mounting screw 3. Because the assembly surface 2114 completely contacts the reference plane 12 to form a limit, the through hole 131 is set to be larger than the outer diameter of the screw part of the mounting screw 3 and smaller than the outer diameter of the screw part of the mounting screw 3, so as to adapt to the skew screwing state of the screw 3 during the skew welding of the fixing piece 22, when the mounting screw 3 is screwed in the skew manner, because the bottom shell 1 abuts against the assembly surface 2114 of the fixing piece 22, one side of the screw part of the mounting screw 3 cannot be forcibly screwed in continuously after abutting against the limit hole 132, and the screen surface distortion caused by the fact that the mounting screw 3 is screwed in the skew manner to centralize the fixing piece 22 of the display screen module is avoided.

Further, the upper portion of the first connection portion 211 includes a positioning portion 2111 and a fixing portion 2112, the middle of the positioning portion 2111 protrudes upward, the circuit board 22 is provided with a positioning groove 221, the positioning portion 2111 is disposed in the positioning groove 221, an annular groove is disposed between the positioning portion 2111 and the fixing portion 2112, and a gap exists between the bottom of the positioning groove 221 and the upper end of the positioning portion 2111. It can be understood that, when the fixing member 21 is welded on the circuit board 22, the positioning groove 221 serves to limit and fix the fixing member 21, the fixing portion 2112 is used for welding, the positioning groove 221 and the annular groove 2113 can be used to accommodate the welding object generated by welding, and the annular groove 2113 can also accelerate the dissipation of heat generated during welding.

Further, the axial height of the second connecting portion 212 is greater than the distance from the reference plane 12 of the bottom case 1 to the back surface of the circuit board 22, so that the bottom case 1 is spaced apart from the circuit board 22, and the assembling surface 2114 of the second connecting portion 212 can be tightly connected with the reference plane 12 of the bottom case 1. For further improving the connection compactness of drain pan 1 and display screen lamp plate 2, have the spiral shell glue on the installation screw 3 for can not cause the aversion because of transportation, vibrations after the installation of installation screw 3 is accomplished.

Further, drain pan 1 and circuit board 22 interval set up, leave the space between the two for drain pan 1 has certain deformation space, avoids causing the influence because drain pan 1 deformation to the roughness of display screen lamp plate 2.

The display screen module is connected with box 4 and is the display screen, for the convenience of this display screen module and box 4's being connected, as shown in fig. 1, still be equipped with magnetism thing 14 on the drain pan 1 for fix the display screen module to on the box 4. Through the magnetic connection, the bottom shell 1 and the box body 4 do not need to be destructively changed, and the connection is convenient. The magnetic substance 14 may be selected from iron, nickel, and the like that can be attracted by a magnet. In this embodiment, the magnetic material 14 is made of iron, and has a wide range of sources and a low cost.

Furthermore, as shown in fig. 6, the utility model also provides a display screen, include as above the display screen module, still include box 4, be equipped with magnet 41 on the box 4, this magnet 41 corresponds the setting with the magnetism thing 14 on the display screen module, and magnet 41 realizes that the display screen module is fixed through attracting each other with the magnetism thing 14 on the display screen module on the box 4. Preferably, the case 4 is a die-cast case 4; the case 4 is manufactured by a die-casting process, so that the surface of the case 4 is smoother and has high dimensional consistency, thereby providing flatness of the display screen.

It should be understood that the technical solutions of the present invention and the inventive concept thereof may be equally replaced or changed by those skilled in the art, and those equivalent modifications or replacements are included in the scope defined by the claims of the present application.

Claims

1. The utility model provides a display screen module which characterized in that includes:

a bottom shell, a bottom cover and a bottom cover,

a display screen lamp panel mounted on the bottom shell,

2. The display screen module of claim 1, wherein the fixing member is generally cylindrical, the first connecting portion and the second connecting portion are coaxially disposed, and the second connecting portion is provided with an axial screw hole.

3. The display screen module according to claim 2, wherein a plurality of avoiding holes are formed in the bottom shell, the second connecting portion extends into the avoiding holes, a reference plane is arranged around an upper end surface of each avoiding hole, and the reference plane abuts against the assembling surface.

4. The display screen module according to claim 3, further comprising a mounting screw, wherein a limiting structure is arranged below the avoiding hole, and the mounting screw penetrates through the limiting structure to be in threaded connection with the second connecting portion.

5. The display screen module according to claim 4, wherein the limiting structure comprises a via hole and a limiting hole, the via hole is communicated with the limiting hole and the avoiding hole, and the via hole, the limiting hole and the avoiding hole are coaxially arranged; the aperture of the through hole is larger than the outer diameter of the screw part of the mounting screw and smaller than the outer diameter of the screw cap part of the mounting screw; the aperture of the limiting hole is larger than the outer diameter of the screw cap part of the mounting screw.

6. The display screen module according to claim 1, wherein the upper portion of the first connecting portion comprises a positioning portion and a fixing portion, and the middle of the positioning portion protrudes upward;

the display screen lamp panel further comprises a circuit board, a positioning groove is formed in the circuit board, and the positioning part is arranged in the positioning groove; the positioning part and the fixing part are provided with an annular groove therebetween.

7. The display screen module of any one of claims 1-6, wherein the bottom shell is spaced from a circuit board in the display screen lamp panel.

8. The display screen module of claim 7, wherein the bottom shell further comprises a magnetic member, and the magnetic member is used for fixing the display screen module to the box body.

9. A display screen, comprising:

the display screen module of any one of claims 1 to 8;