Display device

By integrating the conductive module with the backplate, the problem of complex electrical connections in display devices is solved, simplifying the assembly process and improving efficiency.

CN224417436UActive Publication Date: 2026-06-26GUANGZHOU CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGZHOU CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
Filing Date
2025-06-05
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

The manufacturing process of display devices requires separate wiring to electrically connect the LED strips, driver circuit boards, control circuit boards, and power circuit boards, resulting in high assembly complexity and low assembly efficiency.

Method used

The conductive module is connected to the backplate. The conductive module includes plastic parts and wiring. It is integrally formed with the backplate to realize the electrical connection between the circuit board and the light strip, simplifying the electrical connection process.

Benefits of technology

This reduces the assembly complexity of display devices, improves assembly efficiency, and reduces the need for soldering and complex wiring.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The application discloses a display device, by setting the display device comprising a first conductive module, the first conductive module is connected with the backboard, the first conductive module comprises a first plastic part and a first wire, the first plastic part is connected with the bottom plate, and the first plastic part wraps the first wire, and the first wire is electrically connected with the power circuit board and the light bar respectively; when the display device is manufactured, the first conductive module can be directly integrated with the backboard in the form of glue-iron integration, that is, the power circuit board and the light bar are electrically connected through the first wire in the first plastic part of the first conductive module connected with the backboard; when the display device is assembled, compared with the conventional scheme, the wire for realizing the electrical connection between the light bar and the power circuit board does not need to be arranged, so that the complexity of the assembly of the display device is reduced, and the assembly efficiency of the display device is improved.
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Description

Technical Field

[0001] This application relates to the field of display technology, and more specifically to a display device. Background Technology

[0002] The display device includes a backlight module, a power circuit board, a driver circuit board, and a control circuit board. The backlight module includes a light strip. When manufacturing the display device, the assembly complexity of the display device increases because the display device needs to use separate wiring to electrically connect the light strip, driver circuit board, and control circuit board to the power circuit board, resulting in low assembly efficiency. Utility Model Content

[0003] The embodiments of this application provide a display device that can reduce the complexity of assembling the display device and improve the assembly efficiency of the display device.

[0004] Embodiments of this application provide a display device, including:

[0005] A backlight module, the backlight module including a back plate and a light strip, the back plate including a bottom plate and a side plate, the side plate and the bottom plate being connected to form a receiving cavity, the light strip being disposed in the receiving cavity;

[0006] A power circuit board, wherein the power circuit board is disposed on the back side of the back plate;

[0007] A first conductive module is connected to the back plate. The first conductive module includes a first plastic part and a first trace. The first plastic part is connected to the base plate and wraps the first trace. The first trace is electrically connected to the power circuit board and the light strip respectively.

[0008] Furthermore, the power circuit board is provided with a first connector, the light strip is provided with a second connector, and the end of the first trace is provided with a third connector. The first connector is electrically connected to the third connector located at one end of the first trace, and the second connector is electrically connected to the third connector located at the other end of the first trace.

[0009] Furthermore, the power circuit board is provided with a first metal contact, and the end of the first trace is provided with a first metal spring, and the first metal contact is electrically connected to the first metal spring.

[0010] Furthermore, the display device also includes a driving circuit board and a second conductive module. The driving circuit board is disposed on the back side of the back plate, and the second conductive module is connected to the back plate. The second conductive module includes a second plastic part and a second trace. The second plastic part is connected to the base plate and wraps the second trace. The second trace is electrically connected to the driving circuit board and the power circuit board respectively.

[0011] Furthermore, the power circuit board is provided with a fourth connector, the drive circuit board is provided with a fifth connector, and the two ends of the second trace are provided with a sixth connector. The fourth connector is electrically connected to the sixth connector located at one end of the second trace, and the fifth connector is electrically connected to the sixth connector located at the other end of the second trace.

[0012] Furthermore, the drive circuit board is provided with a second metal contact, and the end of the second trace is provided with a second metal spring, and the second metal contact is electrically connected to the second metal spring.

[0013] Furthermore, the display device also includes a control circuit board and a third conductive module. The control circuit board is disposed on the back side of the back plate, and the third conductive module is connected to the back plate. The third conductive module includes a third plastic component and a third trace. The third plastic component is connected to the base plate and wraps the third trace. The third trace is electrically connected to the control circuit board and the power circuit board respectively.

[0014] Furthermore, the power circuit board is provided with a seventh connector, the control circuit board is provided with an eighth connector, and the two ends of the third trace are provided with a ninth connector. The seventh connector is electrically connected to the ninth connector located at one end of the third trace, and the eighth connector is electrically connected to the ninth connector located at the other end of the third trace.

[0015] Furthermore, the control circuit board is provided with a third metal contact, and the end of the third trace is provided with a third metal spring, and the third metal contact is electrically connected to the third metal spring.

[0016] Furthermore, the first conductive module is bonded and fixed to the back plate, the second conductive module is bonded and fixed to the back plate, and the third conductive module is bonded and fixed to the back plate.

[0017] The beneficial effects of this application are:

[0018] This application provides a display device that includes a first conductive module connected to a backplate. The first conductive module includes a first plastic part and a first trace. The first plastic part is connected to a base plate and encloses the first trace. The first trace is electrically connected to the power circuit board and the LED strip. In manufacturing the display device, the first conductive module can be directly integrated with the backplate using a glue-and-iron method. The power circuit board and the LED strip are electrically connected through the first trace within the first plastic part of the first conductive module connected to the backplate. Compared to conventional solutions, this eliminates the need for additional traces to connect the LED strip to the power circuit board during display device assembly, thereby reducing assembly complexity and improving assembly efficiency. Attached Figure Description

[0019] Figure 1 This is a bottom view of the display device of this application;

[0020] Figure 2 This is a schematic diagram showing the positions of the first conductive module, the second conductive module, and the third conductive module of the display device of this application relative to the back plate;

[0021] Figure 3 This is a schematic diagram of the direct-lit backlight module of the display device of this application;

[0022] Figure 4 yes Figure 3 A schematic diagram showing the position of the first conductive module of the display device relative to the back plate;

[0023] Figure 5 This is a schematic diagram of the side-lit backlight module of the display device of this application;

[0024] Figure 6 yes Figure 5 A schematic diagram showing the position of the first conductive module of the display device relative to the back plate;

[0025] Figure 7 This is a schematic diagram showing the connection between the power circuit board of the display device of this application and the first conductive module through the first metal spring and the first metal contact.

[0026] Figure 8 This is a schematic diagram showing the connection between the drive circuit board of the display device of this application and the second conductive module through the second metal spring and the second metal contact.

[0027] Figure 9 This is a schematic diagram showing the connection between the control circuit board of the display device of this application and the third conductive module through the third metal spring and the first metal contact.

[0028] Explanation of reference numerals in the attached figures:

[0029] 100-Backlight module, 110-Backplate, 111-Bottom plate, 112-Side plate, 113-Receiving cavity, 120-Light strip, 121-Second connector; 200-Power circuit board, 210-First connector, 220-First metal contact, 230-Fourth connector, 240-Seventh connector; 300-First conductive module, 310-First plastic part, 320-First trace, 321-Third connector, 322-First metal spring; 400 -Driver circuit board, 410-Fifth connector, 420-Second metal contact; 500-Second conductive module, 510-Second plastic part, 520-Second trace, 521-Sixth connector, 522-Second metal spring; 600-Control circuit board, 610-Eighth connector, 620-Third metal contact; 700-Third conductive module, 710-Third plastic part, 720-Third trace, 721-Ninth connector, 722-Third metal spring. Detailed Implementation

[0030] The technical solutions in the embodiments of this application will now be described with reference to the accompanying drawings. The technical solutions described below are for illustrative purposes only and should not be construed as limiting the scope of protection of this application.

[0031] Furthermore, the terms "first," "second," and similar words do not indicate any order, quantity, or importance, but are merely used to distinguish different technical features. The terms "multiple" and similar words indicate two or more unless otherwise expressly specified.

[0032] The first embodiment of this application provides a display device, referencing... Figure 1 , Figure 2 The system includes a backlight module 100, a power circuit board 200, and a first conductive module 300. The backlight module 100 includes a back plate 110 and a light strip 120. The back plate 110 includes a bottom plate 111 and a side plate 112. The side plate 112 and the bottom plate 111 are connected to form a receiving cavity 113, and the light strip 120 is disposed in the receiving cavity 113. The power circuit board 200 is disposed on the back side of the back plate 110. The first conductive module 300 is connected to the back plate 110. The first conductive module 300 includes a first plastic part 310 and a first trace 320. The first plastic part 310 is connected to the bottom plate 111, and the first plastic part 310 wraps the first trace 320. The first trace 320 is electrically connected to the power circuit board 200 and the light strip 120, respectively.

[0033] The display device includes a backlight module, a power circuit board, a driver circuit board, and a control circuit board. The backlight module includes a light strip. When manufacturing the display device, the assembly complexity of the display device increases because the display device needs to use separate wiring to electrically connect the light strip, driver circuit board, and control circuit board to the power circuit board, resulting in low assembly efficiency. Therefore, the technical solution of this application sets the display device to include a first conductive module 300, and connects the first conductive module 300 to the back plate 110. The first conductive module 300 includes a first plastic part 310 and a first trace 320. The first plastic part 310 is connected to the base plate 111, and the first plastic part 310 wraps the first trace 320. The first trace 320 is electrically connected to the power circuit board 200 and the light strip 120 respectively. That is, the power circuit board 200 and the light strip 120 are electrically connected through the first trace 320 in the first plastic part 310 of the first conductive module 300 connected to the back plate 110. When manufacturing the display device, the first conductive module 300 can be directly integrated with the back plate 110 into an integral structure through a glue-iron bonding method. When assembling the display device, compared with the conventional solution, it is not necessary to set traces to achieve electrical connection between the light strip 120 and the power circuit board 200, thereby reducing the complexity of the display device assembly and improving the assembly efficiency of the display device.

[0034] In this embodiment, reference Figure 1 , Figure 2 The power circuit board 200 is provided with a first connector 210, the light strip 120 is provided with a second connector 121, and the end of the first trace 320 is provided with a third connector 321. The first connector 210 is electrically connected to the third connector 321 located at one end of the first trace 320, and the second connector 121 is electrically connected to the third connector 321 located at the other end of the first trace 320. By providing a first connector 210 on the power circuit board 200, a second connector 121 on the lamp strip 120, and a third connector 321 at the end of the first trace 320, the first connector 210 is electrically connected to the third connector 321 located at one end of the first trace 320, and the second connector 121 is electrically connected to the third connector 321 located at the other end of the first trace 320, when assembling the lamp strip 120 and the power circuit board 200, the power circuit board 200 can be directly electrically connected through the first connector 210 and the third connector 321, and the lamp strip 120 can be electrically connected through the second connector 121 and the third connector 321, without the need for soldering or complex wiring, thereby further improving the assembly efficiency of the display device.

[0035] In this embodiment, reference Figure 7The power circuit board 200 is provided with a first metal contact 220, and the end of the first trace 320 is provided with a first metal spring 322. The first metal contact 220 and the first metal spring 322 are electrically connected. By providing the first metal contact 220 in the power circuit board 200 and the first metal spring 322 at the end of the first trace 320, and electrically connecting the first metal contact 220 and the first metal spring 322, the first metal contact 220 can achieve stable contact by utilizing the elastic deformation of the first metal spring 322, without the need for soldering or complex wiring, thereby further improving the assembly efficiency of the display device.

[0036] In this embodiment, the first wiring 320 and the first plastic part 310 are integrally injection molded.

[0037] In this embodiment, the first conductive module 300 is attached and fixed to the back plate 110. By attaching and fixing the first conductive module 300 to the back plate 110, the installation difficulty of the first conductive module 300 and the back plate 110 can be reduced, thereby improving the assembly efficiency of the display device.

[0038] In this embodiment, reference Figure 5 , Figure 6 The backlight module is a side-lit backlight module.

[0039] In this embodiment, reference Figure 3 , Figure 4 The backlight module is a direct-lit backlight module.

[0040] The second embodiment of this application provides a second display device. The second embodiment is similar to the first embodiment, but differs from the first embodiment in that, in reference to... Figure 1 , Figure 2 The display device further includes a driving circuit board 400 and a second conductive module 500. The driving circuit board 400 is disposed on the back side of the back plate 110. The second conductive module 500 is connected to the back plate 110. The second conductive module 500 includes a second plastic part 510 and a second trace 520. The second plastic part 510 is connected to the base plate 111 and wraps the second trace 520. The second trace 520 is electrically connected to the driving circuit board 400 and the power circuit board 200 respectively.

[0041] The display device further includes a driving circuit board 400 and a second conductive module 500. The driving circuit board 400 is located on the back side of the back plate 110. The second conductive module 500 is connected to the back plate 110 and includes a second plastic component 510 and a second trace 520. The second plastic component 510 is connected to the base plate 111 and wraps around the second trace 520. The second trace 520 is electrically connected to the driving circuit board 400 and the power circuit board 200, respectively. That is, the driving circuit board 400 and the power circuit board 200 are electrically connected through the second trace 520 in the second plastic part 510 of the second conductive module 500 connected to the back plate 110. When manufacturing the display device, the second conductive module 500 can be directly integrated with the back plate 110 into a single structure through a glue-iron bonding process. When assembling the display device, compared with the conventional solution, it is not necessary to set up traces to achieve electrical connection between the light strip 120 and the power circuit board 200, thereby reducing the complexity of the display device assembly and improving the assembly efficiency of the display device.

[0042] In this embodiment, reference Figure 1 , Figure 2 The power circuit board 200 is also provided with a fourth connector 230, the drive circuit board 400 is provided with a fifth connector 410, and the two ends of the second trace 520 are provided with a sixth connector 521. The fourth connector 230 is electrically connected to the sixth connector 521 located at one end of the second trace 520, and the fifth connector 410 is electrically connected to the sixth connector 521 located at the other end of the second trace 520. By further providing a fourth connector 230 on the power circuit board 200, a fifth connector 410 on the drive circuit board 400, and a sixth connector 521 at both ends of the second trace 520, the fourth connector 230 is electrically connected to the sixth connector 521 located at one end of the second trace 520, and the fifth connector 410 is electrically connected to the sixth connector 521 located at the other end of the second trace 520, when assembling the power circuit board 200 and the drive circuit board 400, the power circuit board 200 can be directly electrically connected through the fourth connector 230 and the sixth connector 521, and the drive circuit board 400 can be electrically connected through the fifth connector 410 and the sixth connector 521, without the need for soldering or complex wiring, thereby further improving the assembly efficiency of the display device.

[0043] In this embodiment, reference Figure 8The driving circuit board 400 is provided with a second metal contact 420, and the end of the second trace 520 is provided with a second metal spring 522. The second metal contact 420 and the second metal spring 522 are electrically connected. By providing the second metal contact 420 in the driving circuit board 400 and the second metal spring 522 at the end of the second trace 520, and electrically connecting the second metal contact 420 and the second metal spring 522, the second metal contact 420 can achieve stable contact by utilizing the elastic deformation of the second metal spring 522, without the need for soldering or complex wiring, thereby further improving the assembly efficiency of the display device.

[0044] In this embodiment, the second wiring 520 and the second plastic part 510 are integrally injection molded.

[0045] In this embodiment, the second conductive module 500 is attached and fixed to the back plate 110. By attaching and fixing the second conductive module 500 to the back plate 110, the installation difficulty of the second conductive module 500 and the back plate 110 can be reduced, thereby improving the assembly efficiency of the display device.

[0046] The third embodiment of this application provides a third display device. The third embodiment is similar to the first embodiment, but differs from the first embodiment in that it refers to... Figure 1 , Figure 2 The display device further includes a control circuit board 600 and a third conductive module 700. The control circuit board 600 is disposed on the back side of the back plate 110. The third conductive module 700 is connected to the back plate 110. The third conductive module 700 includes a third plastic part 710 and a third trace 720. The third plastic part 710 is connected to the base plate 111 and wraps the third trace 720. The third trace 720 is electrically connected to the control circuit board 600 and the power circuit board 200 respectively.

[0047] The display device further includes a control circuit board 600 and a third conductive module 700. The control circuit board 600 is located on the back side of the back plate 110. The third conductive module 700 is connected to the back plate 110 and includes a third plastic component 710 and a third trace 720. The third plastic component 710 is connected to the base plate 111 and encloses the third trace 720. The third trace 720 is electrically connected to both the control circuit board 600 and the power circuit board 200. That is, the control circuit board 600 and the power circuit board 200 are electrically connected through the third trace 720 in the third plastic part 710 of the third conductive module 700 connected to the back plate 110. When manufacturing the display device, the third conductive module 700 can be directly integrated with the back plate 110 into a single structure through a glue-iron bonding process. When assembling the display device, compared with the conventional solution, it is not necessary to set up traces to achieve electrical connection between the light strip 120 and the power circuit board 200, thereby reducing the complexity of the display device assembly and improving the assembly efficiency of the display device.

[0048] In this embodiment, reference Figure 1 , Figure 2 The power circuit board 200 is also provided with a seventh connector 240, the control circuit board 600 is provided with an eighth connector 610, and the two ends of the third trace 720 are provided with a ninth connector 721. The seventh connector 240 is electrically connected to the ninth connector 721 located at one end of the third trace 720, and the eighth connector 610 is electrically connected to the ninth connector 721 located at the other end of the third trace 720. By further providing a seventh connector 240 on the power circuit board 200, an eighth connector 610 on the drive circuit board 400, and ninth connectors 721 at both ends of the third trace 720, the seventh connector 240 is electrically connected to the ninth connector 721 located at one end of the third trace 720, and the eighth connector 610 is electrically connected to the ninth connector 721 located at the other end of the third trace 720, when assembling the power circuit board 200 and the drive circuit board 400, the power circuit board 200 can be directly electrically connected through the seventh connector 240 and the ninth connector 721, and the control circuit board 600 can be electrically connected through the eighth connector 610 and the ninth connector 721, without the need for soldering or complex wiring, thereby further improving the assembly efficiency of the display device.

[0049] In this embodiment, reference Figure 1 , Figure 9The control circuit board 600 is provided with a third metal contact 620, and the end of the third trace 720 is provided with a third metal spring 722. The third metal contact 620 and the third metal spring 722 are electrically connected. By providing the third metal contact 620 in the control circuit board 600 and the third metal spring 722 at the end of the third trace 720, and electrically connecting the third metal contact 620 and the third metal spring 722, the second metal contact 420 can achieve stable contact by utilizing the elastic deformation of the third metal spring 722, without the need for soldering or complex wiring, thereby further improving the assembly efficiency of the display device.

[0050] In this embodiment, the third wiring 720 and the third plastic part 710 are integrally injection molded.

[0051] In this embodiment, the third conductive module 700 is attached and fixed to the back plate 110. By attaching and fixing the third conductive module 700 to the back plate 110, the installation difficulty of the third conductive module 700 and the back plate 110 can be reduced, thereby improving the assembly efficiency of the display device.

[0052] The fourth embodiment of this application provides a fourth display device. The fourth embodiment is similar to the second embodiment, but differs from the second embodiment in that, in reference to... Figure 1 , Figure 2 The display device further includes a control circuit board 600 and a third conductive module 700. The control circuit board 600 is disposed on the back side of the back plate 110. The third conductive module 700 is connected to the back plate 110. The third conductive module 700 includes a third plastic part 710 and a third trace 720. The third plastic part 710 is connected to the base plate 111 and wraps the third trace 720. The third trace 720 is electrically connected to the control circuit board 600 and the power circuit board 200 respectively.

[0053] The display device further includes a control circuit board 600 and a third conductive module 700. The control circuit board 600 is located on the back side of the back plate 110. The third conductive module 700 is connected to the back plate 110 and includes a third plastic component 710 and a third trace 720. The third plastic component 710 is connected to the base plate 111 and encloses the third trace 720. The third trace 720 is electrically connected to both the control circuit board 600 and the power circuit board 200. That is, the control circuit board 600 and the power circuit board 200 are electrically connected through the third trace 720 in the third plastic part 710 of the third conductive module 700 connected to the back plate 110. When manufacturing the display device, the third conductive module 700 can be directly integrated with the back plate 110 into a single structure through a glue-iron bonding process. When assembling the display device, compared with the conventional solution, it is not necessary to set up traces to achieve electrical connection between the light strip 120 and the power circuit board 200, thereby reducing the complexity of the display device assembly and improving the assembly efficiency of the display device.

[0054] In this embodiment, reference Figure 1 , Figure 2 The power circuit board 200 is also provided with a seventh connector 240, the control circuit board 600 is provided with an eighth connector 610, and the two ends of the third trace 720 are provided with a ninth connector 721. The seventh connector 240 is electrically connected to the ninth connector 721 located at one end of the third trace 720, and the eighth connector 610 is electrically connected to the ninth connector 721 located at the other end of the third trace 720. By further providing a seventh connector 240 on the power circuit board 200, an eighth connector 610 on the drive circuit board 400, and ninth connectors 721 at both ends of the third trace 720, the seventh connector 240 is electrically connected to the ninth connector 721 located at one end of the third trace 720, and the eighth connector 610 is electrically connected to the ninth connector 721 located at the other end of the third trace 720, when assembling the power circuit board 200 and the drive circuit board 400, the power circuit board 200 can be directly electrically connected through the seventh connector 240 and the ninth connector 721, and the control circuit board 600 can be electrically connected through the eighth connector 610 and the ninth connector 721, without the need for soldering or complex wiring, thereby further improving the assembly efficiency of the display device.

[0055] In this embodiment, reference Figure 9The control circuit board 600 is provided with a third metal contact 620, and the end of the third trace 720 is provided with a third metal spring 722. The third metal contact 620 and the third metal spring 722 are electrically connected. By providing the third metal contact 620 in the control circuit board 600 and the third metal spring 722 at the end of the third trace 720, and electrically connecting the third metal contact 620 and the third metal spring 722, the second metal contact 420 can achieve stable contact by utilizing the elastic deformation of the third metal spring 722, without the need for soldering or complex wiring, thereby further improving the assembly efficiency of the display device.

[0056] In this embodiment, the third wiring 720 and the third plastic part 710 are integrally injection molded.

[0057] In this embodiment, the third conductive module 700 is attached and fixed to the back plate 110. By attaching and fixing the third conductive module 700 to the back plate 110, the installation difficulty of the third conductive module 700 and the back plate 110 can be reduced, thereby improving the assembly efficiency of the display device.

[0058] The specific embodiments of this application have been described in detail above. The embodiments disclosed above are merely preferred embodiments of this application. Those skilled in the art can make many modifications and improvements without departing from the concept of this application. All such modifications and improvements fall within the scope of protection defined by the claims of this application.

Claims

1. A display device, characterized in that, include: A backlight module, the backlight module including a back plate and a light strip, the back plate including a bottom plate and a side plate, the side plate and the bottom plate being connected to form a receiving cavity, the light strip being disposed in the receiving cavity; A power circuit board, wherein the power circuit board is disposed on the back side of the back plate; A first conductive module is connected to the back plate. The first conductive module includes a first plastic part and a first trace. The first plastic part is connected to the base plate and wraps the first trace. The first trace is electrically connected to the power circuit board and the light strip respectively.

2. The display device according to claim 1, characterized in that, The power circuit board is provided with a first connector, the light strip is provided with a second connector, and the end of the first trace is provided with a third connector. The first connector is electrically connected to the third connector located at one end of the first trace, and the second connector is electrically connected to the third connector located at the other end of the first trace.

3. The display device according to claim 1, characterized in that, The power circuit board is provided with a first metal contact piece, and the end of the first trace is provided with a first metal spring piece. The first metal contact piece is electrically connected to the first metal spring piece.

4. The display device according to claim 1, characterized in that, The display device further includes a driving circuit board and a second conductive module. The driving circuit board is disposed on the back side of the back plate. The second conductive module is connected to the back plate. The second conductive module includes a second plastic part and a second trace. The second plastic part is connected to the base plate and wraps the second trace. The second trace is electrically connected to the driving circuit board and the power circuit board respectively.

5. The display device according to claim 4, characterized in that, The power circuit board is also provided with a fourth connector, the drive circuit board is provided with a fifth connector, and the two ends of the second trace are provided with a sixth connector. The fourth connector is electrically connected to the sixth connector located at one end of the second trace, and the fifth connector is electrically connected to the sixth connector located at the other end of the second trace.

6. The display device according to claim 4, characterized in that, The drive circuit board is provided with a second metal contact, and the end of the second trace is provided with a second metal spring. The second metal contact is electrically connected to the second metal spring.

7. The display device according to claim 4, characterized in that, The display device further includes a control circuit board and a third conductive module. The control circuit board is located on the back side of the back plate. The third conductive module is connected to the back plate. The third conductive module includes a third plastic component and a third trace. The third plastic component is connected to the base plate and wraps the third trace. The third trace is electrically connected to the control circuit board and the power circuit board respectively.

8. The display device according to claim 7, characterized in that, The power circuit board is also provided with a seventh connector, the control circuit board is provided with an eighth connector, and the two ends of the third trace are provided with a ninth connector. The seventh connector is electrically connected to the ninth connector located at one end of the third trace, and the eighth connector is electrically connected to the ninth connector located at the other end of the third trace.

9. The display device according to claim 7, characterized in that, The control circuit board is provided with a third metal contact piece, and the end of the third trace is provided with a third metal spring piece. The third metal contact piece is electrically connected to the third metal spring piece.

10. The display device according to claim 7, characterized in that, The first conductive module is attached and fixed to the back plate, the second conductive module is attached and fixed to the back plate, and the third conductive module is attached and fixed to the back plate.