US-12626618-B2 - Splicing display unit, splicing display device and manufacturing method thereof

Abstract

A splicing display unit, a splicing display device and a manufacturing method thereof are disclosed. The splicing display unit includes a display module and a signal source module. The signal source module includes a first circuit board having a power structure, a first driving structure, a first connector, at least one first wireless signal transmitter. The display module includes a second circuit board, at least one display panel, a second driving structure connected to each display panel. The second circuit board has a second connector, and at least one first wireless signal receiver corresponding to the display panel respectively. The first wireless signal receiver and the second connector are electrically connected to the second driving structure. The first wireless signal receiver is opposite to the first wireless signal transmitter; the first connector and the second connector are arranged in a one-to-one correspondence way and are detachably connected.

Inventors

• Gongtao Zhang
• Xuerong Wang
• Qibing GU
• Haiwei SUN
• Shipeng WANG

Assignees

• BOE MLED Technology Co., Ltd.
• BOE TECHNOLOGY GROUP CO., LTD.

Dates

Publication Date

20260512

Application Date

20210615

Priority Date

20200731

Claims (20)

1. 1 . A splicing display unit, comprising: a display module and a signal source module, wherein the signal source module comprises a first circuit board provided with a power structure, a first driving structure, a first connector and at least one first wireless signal transmitter, and the first driving structure and the first connector are both electrically connected to the power structure; the display module comprises: a second circuit board, at least one display panel, and a second driving structure connected to each display panel, and the second circuit board is provided with a second connector, and at least one first wireless signal receiver in one-to-one correspondence with the display panel, and the first wireless signal receiver and the second connector are both electrically connected to the second driving structure; and the first wireless signal receiver is disposed opposite to the first wireless signal transmitter in a one-to-one correspondence way; the first connector and the second connector are arranged in a one-to-one correspondence way and are detachably connected; the power structure is configured to output a power signal to the first connector and the first driving structure; the first driving structure is configured to output, according to a to-be-displayed image of each display panel, a display driving signal to the first wireless signal transmitter corresponding to the display panel; and the second driving structure is configured to control the display panel to perform display according to the power signal and the display driving signal corresponding to the display panel, wherein the signal source module further comprises a first box on which the first circuit board is disposed; and the display module further comprises a second box, both the second circuit board and the display panel are disposed on the second box, and the first box is detachably connected to the second box.
2. 2 . The splicing display unit of claim 1 , wherein the display module further comprises at least one flexible printed circuit in one-to-one correspondence with the display panel, one end of each flexible printed circuit is electrically connected to the display panel corresponding thereto, and the other end of each flexible printed circuit is electrically connected to the second circuit board.
3. 3 . The splicing display unit of claim 2 , wherein the second driving structure comprises: a driver chip disposed on each flexible printed circuit, or, the second driving structure comprises: a driving circuit disposed on the second circuit board.
4. 4 . The splicing display unit of claim 1 , wherein the first box is provided with first magnetic members, the second box is provided with second magnetic members, and the first magnetic members and the second magnetic members are connected by attraction in a one-to-one correspondence way.
5. 5 . The splicing display unit of claim 4 , wherein the first box comprises: a bottom wall, a side wall, and a cover plate opposite to the bottom wall, the bottom wall is located on a side of the cover plate away from the display module, the first circuit board is disposed between the cover plate and the bottom wall, and a first opening exposing the first connector is provided in the cover plate; the first magnetic members are magnetic connecting members which connect the cover plate to the side wall, and the first circuit board is fixed on the bottom wall of the first box through a first fastener.
6. 6 . The splicing display unit of claim 1 , wherein the second box comprises: a rear shell, and a support frame connected to the rear shell, the support frame is located between the rear shell and the display panel, the display panel is fixed on a surface of the support frame away from the rear shell, the second circuit board is disposed between the display panel and the rear shell, and a second opening exposing the second connector is provided in the rear shell, and the second magnetic members are magnetic connecting members which connect the support frame to the rear shell.
7. 7 . The splicing display unit of claim 6 , wherein the rear shell comprises: a bottom plate part, and a side plate part connected to the bottom plate part, the support frame is connected to the side plate part, and the second circuit board is fixed on the support frame through a second fastener.
8. 8 . The splicing display unit of claim 6 , wherein the cover plate of the first box comprises a first insulating part opposite to the first wireless signal transmitter; and the rear shell of the second box comprises a second insulating part opposite to the first wireless signal receiver.
9. 9 . The splicing display unit of claim 6 , wherein the support frame and the rear shell are of a one-piece structure, and the second magnetic member is disposed on the rear shell, and the second circuit board is fixed on the rear shell through a second fastener.
10. 10 . The splicing display unit of claim 6 , wherein an adhesive layer is provided on a surface of the support frame away from the rear shell, and the display panel is connected to the support frame through the adhesive layer, and the adhesive layer is an opaque adhesive layer.
11. 11 . The splicing display unit of claim 6 , wherein the display panel, the support frame and the second circuit board define an accommodation space, the display module further comprises at least one flexible printed circuit in one-to-one correspondence with the display panel, one end of each flexible printed circuit is electrically connected to the display panel corresponding thereto, and the other end of each flexible printed circuit is electrically connected to the second circuit board; and each flexible printed circuit is located in the accommodation space.
12. 12 . The splicing display unit of claim 6 , wherein the display module comprises a plurality of display panels, the support frame comprises: a side frame, and a partition wall connected to the side frame, the partition wall divides a region surrounded by the side frame into a plurality of partitions, the display panels are arranged in one-to-one correspondence with the partitions, and the second circuit board is disposed between the partition wall and the bottom wall.
13. 13 . The splicing display unit of claim 1 , wherein edges of each display panel do not extend beyond edges of the second box.
14. 14 . The splicing display unit of claim 13 , wherein the display panel comprises: a substrate and a plurality of light emitting devices arranged on the substrate, the display panels in the display module are arranged in m rows and n columns, a sum L 1 of dimensions of each row of display panels in a row direction is less than a dimension L 2 of the second box in the row direction, and a sum W 1 of dimensions of each column of display panels in a column direction is less than a dimension W 2 of the second box in the column direction, where both m and n are positive integers; nd≥L 2 −L 1 ≥n(a+b+c) and md≥W 2 −W 1 ≥m(a+b+c), a is a dimensional tolerance of the second box, b is a grinding tolerance of the substrate of the display panel, c is assembling accuracy of the display panel and the second box, and d is 3% of center-to-center spacing of two adjacent light emitting devices.
15. 15 . A splicing display device, comprising a plurality of splicing display units, wherein each of the splicing display units is the splicing display unit of claim 1 .
16. 16 . The splicing display device of claim 15 , further comprising: a transmission assembly connected between first circuit boards of every two adjacent splicing display units, wherein the transmission assembly comprises: a third connector, a fourth connector, a second wireless signal transmitter and a second wireless signal receiver, the second wireless signal transmitter and the second wireless signal receiver are respectively connected to first driving structures of the two adjacent splicing display units, and the third connector and the fourth connector are respectively connected to power structures of the two adjacent splicing display units, and third connectors and fourth connectors are arranged in a one-to-one correspondence way and are detachably connected, and second wireless signal transmitters and second wireless signal receivers are arranged opposite to each other in a one-to-one correspondence way.
17. 17 . A manufacturing method of a splicing display device, comprising: manufacturing a plurality of signal source modules and a plurality of display modules; wherein each of the signal source modules comprises a first circuit board provided with a power structure, a first driving structure, a first connector and a first wireless signal transmitter, and the first driving structure and the first connector are both electrically connected to the power structure; and each of the display modules comprises: a second circuit board, at least one display panel, and a second driving structure connected to each display panel, and the second circuit board is provided with a second connector, and at least one first wireless signal receiver in one-to-one correspondence with the at least one display panel, and the first wireless signal receiver and the second connector are both electrically connected to the second driving structure; splicing and fixing the plurality of signal source modules; connecting the plurality of display modules to the plurality of signal source modules in a one-to-one correspondence way, wherein first wireless signal receivers of the display modules and first wireless signal transmitters of the signal source modules are arranged opposite to each other in a one-to-one correspondence way, and first connectors and second connectors are detachably connected; power structures are configured to output power signals to the first connectors and first driving structures; the first driving structures are configured to provide display driving signals to the first wireless signal transmitters corresponding to display panels according to to-be-displayed images of the display panels; and second driving structures are configured to control the display panels to perform display according to the power signals and the display driving signals corresponding to the display panels.
18. 18 . The manufacturing method of claim 17 , wherein a step of manufacturing each of the display modules comprises: providing each display panel provided with a first alignment mark; fixing each display panel on a bearing platform, with the first alignment mark of each display panel completely overlapping a second alignment mark of the bearing platform; and fixedly connecting a second box to each display panel, and fixing the second circuit board on the second box.
19. 19 . The manufacturing method of claim 18 , wherein each of the signal source modules further comprises a first box on which the first circuit board is disposed, the first box is provided with a first magnetic member, and the second box is provided with a second magnetic member; and connecting the plurality of display modules to the plurality of signal source modules in the one-to-one correspondence way comprises: aligning first boxes with second boxes in a one-to-one correspondence way, connecting first magnetic members to second magnetic members by attraction in a one-to-one correspondence way, and electrically connecting first connectors to second connectors in a one-to-one correspondence way.
20. 20 . A splicing display device, comprising a plurality of splicing display units, wherein each of the splicing display units comprises: a display module and a signal source module, wherein the signal source module comprises a first circuit board provided with a power structure, a first driving structure, a first connector and at least one first wireless signal transmitter, and the first driving structure and the first connector are both electrically connected to the power structure; the display module comprises: a second circuit board, at least one display panel, and a second driving structure connected to each display panel, and the second circuit board is provided with a second connector, and at least one first wireless signal receiver in one-to-one correspondence with the display panel, and the first wireless signal receiver and the second connector are both electrically connected to the second driving structure; and the first wireless signal receiver is disposed opposite to the first wireless signal transmitter in a one-to-one correspondence way; the first connector and the second connector are arranged in a one-to-one correspondence way and are detachably connected; the power structure is configured to output a power signal to the first connector and the first driving structure; the first driving structure is configured to output, according to a to-be-displayed image of each display panel, a display driving signal to the first wireless signal transmitter corresponding to the display panel; and the second driving structure is configured to control the display panel to perform display according to the power signal and the display driving signal corresponding to the display panel, and wherein the splicing display device further comprises: a transmission assembly connected between first circuit boards of every two adjacent splicing display units, wherein the transmission assembly comprises: a third connector, a fourth connector, a second wireless signal transmitter and a second wireless signal receiver, the second wireless signal transmitter and the second wireless signal receiver are respectively connected to first driving structures of the two adjacent splicing display units, and the third connector and the fourth connector are respectively connected to power structures of the two adjacent splicing display units, and third connectors and fourth connectors are arranged in a one-to-one correspondence way and are detachably connected, and second wireless signal transmitters and second wireless signal receivers are arranged opposite to each other in a one-to-one correspondence way.

Description

TECHNICAL FIELD The present disclosure relates to the field of display technologies, and in particular, to a splicing display unit, a splicing display device and a manufacturing method thereof. BACKGROUND Splicing display technology has become more and more popular. In a splicing display system, a plurality of splicing display units are arranged to form a spliced screen. At present, the spliced screen usually has the problems such as inconvenient installation and maintenance. SUMMARY For solving at least one of the technical problems in the related art, the present disclosure provides a splicing display unit, a splicing display device and a manufacturing method thereof. In order to achieve the above objective, the present disclosure provides a splicing display unit, including: a display module and a signal source module, the signal source module includes: a first circuit board provided with a power structure, a first driving structure, a first connector and at least one first wireless signal transmitter, and the first driving structure and the first connector are both electrically connected to the power structure; the display module includes: a second circuit board, at least one display panel, and a second driving structure connected to each display panel, and the second circuit board is provided with a second connector, and at least one first wireless signal receiver in one-to-one correspondence with the display panel, and the first wireless signal receiver and the second connector are both electrically connected to the second driving structure; wherein the first wireless signal receiver is disposed opposite to the first wireless signal transmitter in a one-to-one correspondence way; the first connector and the second connector are arranged in a one-to-one correspondence way and are detachably connected; the power structure is configured to output a power signal to the first connector and the first driving structure; the first driving structure is configured to output, according to a to-be-displayed image of each display panel, a display driving signal to the first wireless signal transmitter corresponding to the display panel; and the second driving structure is configured to control the display panel to perform display according to the power signal and the display driving signal corresponding to the display panel. In some implementations, the display module further includes at least one flexible printed circuit in one-to-one correspondence with the display panel, one end of each flexible printed circuit is electrically connected to the display panel corresponding thereto, and the other end of each flexible printed circuit is electrically connected to the second circuit board. In some implementations, the second driving structure includes a driver chip disposed on each flexible printed circuit, or, the second driving structure includes: a driving circuit disposed on the second circuit board. In some implementations, the signal source module further includes a first box on which the first circuit board is disposed; and the display module further includes a second box, both the second circuit board and the display panel are disposed on the second box, and the first box is detachably connected to the second box. In some implementations, the first box is provided with first magnetic members, the second box is provided with second magnetic members, and the first magnetic members and the second magnetic members are connected by attraction in a one-to-one correspondence way. In some implementations, the first box includes: a bottom wall, a side wall, and a cover plate opposite to the bottom wall, the bottom wall is located on a side of the cover plate away from the display module, the first circuit board is disposed between the cover plate and the bottom wall, and a first opening exposing the first connector is provided in the cover plate; wherein the first magnetic members are magnetic connecting members which connect the cover plate to the side wall. In some implementations, the first circuit board is fixed on the bottom wall of the first box through a first fastener. In some implementations, the second box includes: a rear shell, and a support frame connected to the rear shell, the support frame is located between the rear shell and the display panel, the display panel is fixed on a surface of the support frame away from the rear shell, the second circuit board is disposed between the display panel and the rear shell, and a second opening exposing the second connector is provided in the rear shell. In some implementations, the second magnetic members are magnetic connecting members which connect the support frame to the rear shell. In some implementations, the rear shell includes: a bottom plate part, and a side plate part connected to the bottom plate part, the support frame is connected to the side plate part, and the second circuit board is fixed on the support frame through a second fastener. In some impl