CN109348615B

CN109348615B - Display module

Info

Publication number: CN109348615B
Application number: CN201811333931.8A
Authority: CN
Inventors: 李小华
Original assignee: Huizhou China Star Optoelectronics Technology Co Ltd
Current assignee: Huizhou China Star Optoelectronics Technology Co Ltd
Priority date: 2018-11-09
Filing date: 2018-11-09
Publication date: 2020-02-28
Anticipated expiration: 2038-11-09
Also published as: CN109348615A

Abstract

The application provides a display module, which comprises a first PCB, a second PCB, an FPC board and a connecting structure, wherein the second PCB and the first PCB are arranged at intervals; one end of the FPC board is electrically connected with the first PCB board, and the other end of the FPC board is electrically connected with the second PCB board; the connecting structure is arranged between the first PCB and the second PCB, one end of the connecting structure is fixedly connected with the first PCB, and the other end of the connecting structure is fixedly connected with the second PCB. This application is through connection structure's setting, with first PCB board and second PCB board fixed connection, improves the joint strength between the two, and then protects the FPC board.

Description

Display module

Technical Field

The application relates to a display technology, in particular to a display module.

Background

The large-sized display panel requires more and larger electric signal driving, and the number of Circuit boards can only be increased due to poor performance such as too large warpage of the Circuit boards and process limitations, which inevitably leads to the need of additionally designing a Flexible Printed Circuit (FPC) to connect with the PCBs of the same power supply signal, which has lower strength and weaker strength of stress concentration at the corners. Because of the PCB leans on the buckle to fix on the backplate in the present display module assembly design, display module assembly is in transportation or testing process, especially jumbo size module, and vibration frequency and range between the adjacent PCB are asynchronous, lead to connecting the FPC of two PCB boards very easily because of dragging and fracture, FPC fracture causes the display quality harmfully, brings the loss.

Disclosure of Invention

The embodiment of the application provides a display module assembly to solve current display module assembly in transportation or testing process, vibration frequency and amplitude between the adjacent PCB are asynchronous, lead to connecting the FPC of two PCB boards very easily because of dragging and fracture, FPC fracture causes the technical problem that the display quality is bad.

The embodiment of the application provides a display module assembly, it includes:

a first PCB board;

the second PCB is arranged at a distance from the first PCB;

one end of the FPC board is electrically connected with the first PCB, and the other end of the FPC board is electrically connected with the second PCB; and

the connecting structure is arranged between the first PCB and the second PCB, one end of the connecting structure is fixedly connected with the first PCB, and the other end of the connecting structure is fixedly connected with the second PCB.

In the display module, the connecting structure comprises a fixing piece, a first substructure and a second substructure, wherein the first substructure is positioned at one end of the fixing piece, and the second substructure is positioned at the other end of the fixing piece;

the first substructure is fixedly connected with the first PCB, and the second substructure is fixedly connected with the second PCB.

In the display module, the first substructure comprises a first through hole and a first fixing sub-part, the first through hole is positioned at one end of the fixing part, the first PCB is provided with a second through hole, the first through hole and the second through hole are in one-to-one correspondence, and the first fixing sub-part penetrates through the first through hole and the second through hole corresponding to the first through hole and fixedly connects the fixing part and the first PCB;

the second substructure comprises a third through hole and a second fixing sub-piece, the third through hole is located at the other end of the fixing piece, the second PCB is provided with a fourth through hole, the third through hole corresponds to the fourth through hole in a one-to-one manner, and the second fixing sub-piece penetrates through the third through hole and the fourth through hole corresponding to the third through hole and is fixedly connected with the fixing piece and the second PCB.

In the display module of this application, the first fixing sub-component is one of screw, the combination of bolt and nut, rivet or fixed pin, the second fixing sub-component is one of screw, the combination of bolt and nut, rivet or fixed pin.

In the display module, the first substructure is a first protruding part, the first protruding part is fixedly arranged at one end of the fixing part, a first concave part is arranged on the first PCB, and the first protruding part is fixedly inserted into the first concave part;

the second substructure is a second convex part, the second convex part is fixedly arranged at the other end of the fixing part, a second concave part is arranged on the second PCB, and the second convex part is fixedly inserted in the second concave part.

the second substructure is a second depressed part, the second depressed part is fixedly arranged at the other end of the fixing part, a second raised part is arranged on the second PCB, and the second raised part is fixedly inserted in the second depressed part.

In the display module assembly of this application, first depressed part with the second depressed part is recess or through-hole, first bellying with first depressed part interference grafting cooperation, the second bellying with second depressed part interference grafting cooperation.

In the display module of the present application, the first substructure is a first recessed portion, the first recessed portion is located at one end of the fixing member, an opening of the first recessed portion faces an end portion of the first PCB, and the first recessed portion extends toward a center direction of the fixing member; the end part of the first PCB is fixedly inserted in the first concave part;

the second substructure is a second recessed part, the second recessed part is located at the other end of the fixing part, an opening of the second recessed part faces the end part of the second PCB, and the second recessed part extends towards the center direction of the fixing part; and the end part of the second PCB is fixedly inserted in the second concave part.

In the display module of this application, first depressed part is recess or opening, the second depressed part is recess or opening.

In the display module, a first buffer pad is arranged on the inner wall of the first concave part and used for protecting the first PCB and the connecting structure; and a second buffer pad is arranged on the inner wall of the second concave part and used for protecting the second PCB and the connecting structure.

Compared with the display module in the prior art, the display module has the advantages that the first PCB and the second PCB are fixedly connected through the arrangement of the connecting structure, so that the connecting strength between the first PCB and the second PCB is improved, and the FPC board is protected; the problem of current display module assembly in transportation or testing process, vibration frequency and amplitude between the adjacent PCB are asynchronous, lead to connecting the FPC of two PCB boards very easily because of dragging and fracture, FPC fracture causes the technique that shows the quality badly is solved.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required in the embodiments are briefly described below. The drawings in the following description are only some embodiments of the present application, and it will be obvious to those skilled in the art that other drawings can be obtained from the drawings without inventive effort.

Fig. 1 is a schematic structural diagram of a display module according to a first embodiment of the present application;

fig. 2 is a schematic structural diagram of a first PCB, a second PCB and a connecting structure of a display module according to a first embodiment of the present application;

fig. 3 is a schematic view of a split structure of a first PCB, a second PCB and a connecting structure of a display module according to a first embodiment of the present application;

fig. 4 is a schematic structural diagram of a first PCB, a second PCB and a connecting structure of a display module according to a second embodiment of the present application;

fig. 5 is a schematic view of a split structure of a first PCB, a second PCB and a connecting structure of a display module according to a second embodiment of the present application;

fig. 6 is a schematic structural diagram of a first PCB, a second PCB and a connecting structure of a display module according to a third embodiment of the present application;

fig. 7 is a schematic view of a split structure of a first PCB, a second PCB and a connecting structure of a display module according to a third embodiment of the present application;

fig. 8 is a schematic structural diagram of a first PCB, a second PCB and a connecting structure of a display module according to a fourth embodiment of the present application;

fig. 9 is a schematic view of a split structure of a first PCB, a second PCB and a connection structure of a display module according to a fourth embodiment of the present application.

Detailed Description

Refer to the drawings wherein like reference numbers refer to like elements throughout. The following description is based on illustrated embodiments of the application and should not be taken as limiting the application with respect to other embodiments that are not detailed herein.

Referring to fig. 1 to 3, fig. 1 is a schematic structural diagram of a display module according to a first embodiment of the present application; fig. 2 is a schematic structural diagram of a first PCB, a second PCB and a connecting structure of a display module according to a first embodiment of the present application; fig. 3 is a schematic view of a split structure of a first PCB, a second PCB and a connection structure of a display module according to a first embodiment of the present application.

The display module 100 of the first embodiment of the present application includes a first PCB 11, a second PCB 12, an FPC 13, and a connection structure 14.

The second PCB 12 and the first PCB 11 are spaced apart. One end of the FPC board 13 is electrically connected to the first PCB 11, and the other end of the FPC board 13 is electrically connected to the second PCB 12. The connection structure 14 is disposed between the first PCB 11 and the second PCB 12. One end of the connecting structure 14 is fixedly connected to the first PCB 11, and the other end of the connecting structure 14 is fixedly connected to the second PCB 12.

The display module 100 of the first embodiment is configured to fixedly connect the first PCB 11 and the second PCB 12 by the connection structure 14, so as to improve the connection strength therebetween, and further protect the FPC board 13. When the display module assembly 100 is in the transportation or test process, the vibration frequency and the amplitude between the first PCB 11 and the second PCB 12 are asynchronous, and the connecting structure 14 fixedly connects the first PCB 11 and the second PCB 12 into a whole, so that the first PCB 11 and the second PCB are prevented from moving outwards, the FPC 13 is prevented from being pulled outwards, and the FPC 13 is protected.

Referring to fig. 2 and 3, in the first embodiment, the connecting structure 14 includes a fixing element 141, a first substructure 142 and a second substructure 143. The first substructure 142 is located at one end of the fixture 141 and the second substructure 143 is located at the other end of the fixture 141.

The first substructure 142 is fixedly connected to the first PCB 11. The second substructure 143 is fixedly connected to the second PCB board 12.

Specifically, the first sub-structure 142 includes a first through hole 1421 and a first fixing sub-member 1422. The first through hole 1421 is located at one end of the fixing member 141. The first PCB board 11 is provided with a second through hole 111. The first through holes 1421 and the second through holes 111 correspond one to one. The first fixing sub-assembly 1422 passes through the first through hole 1421 and the second through hole 111 corresponding to the first through hole 1421, and fixedly connects the fixing member 141 and the first PCB 11.

The second sub-structure 143 includes a third through-hole 1431 and a second fixing sub-member 1432. The third through hole 1431 is located at the other end of the fixing member 141. The second PCB board 12 is provided with a fourth through hole 121. The third through holes 1431 and the fourth through holes 121 correspond one to one. The second fixing sub-member 1432 passes through the third through hole 1431 and the fourth through hole 121 corresponding to the third through hole 1431, and fixedly connects the fixing member 141 and the second PCB 12.

Further, the fixing member 141 is a rigid plate made of stainless steel, zinc-plated aluminum alloy, or the like. The fixing member 141 made of a rigid material increases the strength of the connection structure 14, and thus, the strength of the connection between the first PCB 11 and the second PCB 12.

The first fixing sub 1422 is one of a screw, a combination of a bolt and a nut, a rivet, or a fixing pin. The second fixing sub-member 1432 is one of a screw, a combination of a bolt and a nut, a rivet, or a fixing pin. In the first embodiment, the first fixing sub-part 1422 and the second fixing sub-part 1432 are both used as an example for description.

The fixing pin comprises a main body, a cap end and a clamping end. The cap end is disposed at the top of the main body, the card end is disposed at the bottom of the main body, and the areas of the cap end and the card end are both greater than the areas of the first through hole 1421 and the second through hole 111. Meanwhile, the areas of the cap end and the card end are both larger than the areas of the third through hole 1431 and the fourth through hole 121.

The end of the main body, which is provided with the clamping end, is provided with a notch, and the notch extends from the end surface of the clamping end to the center of the main body and divides the clamping end into two parts. When the card end is inserted into the second through hole 111, the two parts of the card end move inward under the extrusion force, and when the card end passes through the second through hole 111, the two parts of the card end reset and are clamped outside the second through hole 111.

The assembly process of the first embodiment is:

first, the first through hole 1421 of the connecting structure 14 is aligned with the second through hole 111 of the first PCB 11, and then the first fixing sub-assembly 1422 is inserted through the first through hole 1421 and the second through hole 111, thereby fixing the fixing member 141 of the connecting structure 14 and the first PCB 11.

Then, the third through hole 1431 of the connection structure 14 is aligned with the fourth through hole 121 of the second PCB 12, and then the second fixing sub-member 1432 is inserted through the third through hole 1431 and the fourth through hole 121, thereby fixing the fixing member 141 of the connection structure 14 and the second PCB 12.

Finally, one end of the FPC board 13 is electrically connected to the connector of the first PCB 11, and the other end of the FPC board 13 is electrically connected to the connector of the second PCB 12.

Referring to fig. 4 and 5, fig. 4 is a schematic structural diagram of a first PCB, a second PCB and a connecting structure of a display module according to a second embodiment of the present application; fig. 5 is a schematic view of a split structure of a first PCB, a second PCB and a connecting structure of a display module according to a second embodiment of the present application. The display module 200 of the second embodiment includes a first PCB board 21, a second PCB board 22 and a connecting structure 24. The connecting structure 24 includes a fixing member 241, a first substructure 242, and a second substructure 243.

The second embodiment differs from the first embodiment in that: the first sub-structure 242 is a first protrusion. The first protrusion 242 is fixedly disposed at one end of the fixing member 241. The first PCB 21 is provided with a first recess 211. The first protrusion 242 is fixedly inserted into the first recess 211.

The second substructure 243 is a second bump. The second protrusion 243 is fixedly disposed at the other end of the fixing member 241. The second PCB 22 is provided with a second recess 221. The second protrusion 243 is fixedly inserted into the second recess 221.

The first and

second recesses

211 and 221 are both grooves or through holes. The first protruding portion 242 and the first recessed portion 211 are in interference fit. The second protruding portion 243 and the second recessed portion 221 are in interference fit.

Referring to fig. 6 and 7, fig. 6 is a schematic structural diagram of a first PCB, a second PCB and a connection structure of a display module according to a third embodiment of the present application; fig. 7 is a schematic view of a split structure of a first PCB, a second PCB and a connection structure of a display module according to a third embodiment of the present application.

The display module 300 of the third embodiment includes a first PCB 31, a second PCB 32 and a connecting structure 34. The connecting structure 34 includes a fixed member 341, a first substructure 342, and a second substructure 343.

The third embodiment is different from the first embodiment in that: the first substructure 342 is a first protrusion. The first protrusion 342 is fixedly disposed at one end of the fixing member 341. The first PCB 31 is provided with a first recess 311. The first protrusion 342 is fixedly inserted into the first recess 311.

The second substructure 343 is a second recessed portion. The second recess 343 is fixedly provided at the other end of the fixing member 341. The second PCB 32 is provided with a second protrusion 321. The second protrusion 321 is fixedly inserted into the second recess 343.

The first and

second recess portions

311 and 343 are both grooves or through holes. The first protruding portion 342 and the first recessed portion 311 are in interference fit. The second protruding portion 321 and the second recessed portion 343 are in interference fit.

Referring to fig. 8 and 9, fig. 8 is a schematic structural diagram of a first PCB, a second PCB and a connection structure of a display module according to a fourth embodiment of the present application; fig. 9 is a schematic view of a split structure of a first PCB, a second PCB and a connection structure of a display module according to a fourth embodiment of the present application.

The display module 400 of the fourth embodiment includes a first PCB 41, a second PCB 42 and a connecting structure 44. The connecting structure 44 includes a fixing member 441, a first substructure 442, and a second substructure 443.

The fourth embodiment is different from the first embodiment in that: the first sub-structure 442 is a first recess. The first recess 442 is located at one end of the fixing member 441. The opening of the first recess 442 faces the end of the first PCB board 41. The first recess 442 extends toward the center of the fixing member 441. The end of the first PCB 41 is fixedly inserted into the first recess 442.

The second substructure 443 is a second recessed portion. The second recess 443 is located at the other end of the fixing member 441. The opening of the second recess 443 faces the end of the second PCB board 42. The second recess 443 extends toward the center of the fixed member 441. The end of the second PCB board 42 is fixedly inserted into the second recess 443.

The first recess 442 is a groove or an opening. The second recess 443 is a groove or an opening.

Specifically, the fixing member 441 includes a first receiving body provided with a first recess 442, a second receiving body provided with a second recess 443, and a connecting body connected between the first receiving body and the second receiving body. The extending direction of the connecting body is respectively perpendicular to the extending direction of the first accommodating body and the extending direction of the second accommodating body.

The fixing member 441 is made of a semi-rigid material such as Polycarbonate (PC) or foam, or a flexible material. With the arrangement, on one hand, the first PCB 41 and the second PCB 42 are synchronized in vibration, and on the other hand, the vibration is buffered and weakened.

In the present fourth embodiment, the first buffer 444 is provided on the inner wall of the first recess 442, and the first buffer 444 protects the first PCB 41 and the connection structure 44. The inner wall of the second recess 443 is provided with a second cushion 445. The second cushion 445 serves to protect the second PCB board 42 and the connection structure 44.

As described above, it will be apparent to those skilled in the art that various other changes and modifications can be made based on the technical solution and the technical idea of the present invention, and all such changes and modifications should fall within the protective scope of the appended claims.

Claims

1. A display module, comprising:

a first PCB board;

the second PCB is arranged at a distance from the first PCB;

the connecting structure is arranged between the first PCB and the second PCB, one end of the connecting structure is fixedly connected with the first PCB, and the other end of the connecting structure is fixedly connected with the second PCB;

the connecting structure comprises a fixing piece, a first substructure and a second substructure, wherein the first substructure is positioned at one end of the fixing piece, and the second substructure is positioned at the other end of the fixing piece;

the first substructure is fixedly connected with the first PCB, and the second substructure is fixedly connected with the second PCB;

the first substructure is a first recessed part, the first recessed part is positioned at one end of the fixing part, and the opening of the first recessed part faces the end part of the first PCB; the end part of the first PCB is fixedly inserted in the first concave part;

the second substructure is a second recessed part, the second recessed part is positioned at the other end of the fixing part, and the opening of the second recessed part faces the end part of the second PCB; and the end part of the second PCB is fixedly inserted in the second concave part.

2. The display module assembly of claim 1, wherein the first recessed portion extends toward a center of the fixing member, and the second recessed portion extends toward the center of the fixing member.

3. The display module of claim 1, wherein the first recessed portion is a groove or an opening, and the second recessed portion is a groove or an opening.

4. The display module assembly according to claim 1, wherein a first buffer pad is disposed on an inner wall of the first recess, and the first buffer pad is used for protecting the first PCB and the connecting structure; and a second buffer pad is arranged on the inner wall of the second concave part and used for protecting the second PCB and the connecting structure.