Electronic Devices

Abstract

The present application provides an electronic device including a backplane, a flat panel, a mini-LED lighting panel, and a diffusion panel. The flat panel is located between the backplane and the mini-LED lighting panel, and a light mixing space is formed between the mini-LED lighting panel and the diffusion panel, and light emitted by the mini-LED lighting panel enters the diffusion panel through the light mixing space. The mini-LED lighting panel includes a plurality of sub-mini-LED lighting panels, and each sub-mini-LED lighting panel includes a connector. The sub-mini-LED lighting panels may be directly electrically connected to a driving module of the electronic device, or may be indirectly electrically connected to a driving module of the electronic device through another sub-mini-LED lighting panel. The electronic device provided herein may also obtain an advantage of being able to implement zone control for the mini-LED lighting panel. A light-transmitting spacer may be provided between the mini-LED lighting panel and the diffusion panel. The electronic device may include a diffusion panel support to equalize the light mixing distance.

Description

[Technical field]

[0001] The present application relates to the field of electronic devices, and more particularly to electronic devices. [Background technology]

[0002] Current electronic devices (e.g., large-screen devices) are evolving toward lighter weight and thinner. Electronic devices may include mini-light-emitting diode (mini-LED) lighting panels. Mini-LED technology can reduce the optical path and further reduce the overall thickness of electronic devices. Mini-LED lighting panels may include thousands of light-emitting units. Introducing mini-LED lighting panels into electronic devices may cause problems such as redundant cabling and complex light-emitting driving. Summary of the Invention

[0003] The present application provides a new electronic device. The electronic device can be characterized by lightness and thinness. The cabling inside the electronic device can be relatively simple. The solution of the present application is beneficial for the electronic device to flexibly drive the light-emitting units of a mini-LED lighting panel.

[0004] According to a first aspect, an electronic device is provided. The electronic device may be a backplane, a flat panel, a mini light emitting diode, ( mini-LED )The mini-LED lighting panel includes a lighting panel and a diffusion panel. The flat panel is located between the backplane and the mini-LED lighting panel. The mini-LED lighting panel is located between the flat panel and the diffusion panel. A light mixing space is formed between the mini-LED lighting panel and the diffusion panel. Light emitted by the mini-LED lighting panel passes through the light mixing space and enters the diffusion panel. The electronic device further includes a first electrical connecting member and a second electrical connecting member and a driving module.

[0005] The drive module includes a first power port.

[0006] The mini-LED lighting panel includes a first mini-LED lighting panel group. The first mini-LED lighting panel group includes a first sub mini-LED lighting panel and a second sub mini-LED lighting panel. The first sub mini-LED lighting panel includes a first connector and a second connector. The first connector is electrically connected to the first power port through a first electrical connection member. The second sub mini-LED lighting panel includes a third connector. The third connector is electrically connected to the second connector through a second electrical connection member.

[0007] In the present application, the light mixing distance of the mini-LED lighting panel can be shortened, for example, within 1 mm, or to a smaller light mixing distance. In the narrow light mixing space, the driving module can be electrically connected to the first sub-mini-LED lighting panel, and the first sub-mini-LED lighting panel can be electrically connected to the second sub-mini-LED lighting panel, so that one power port of the driving module can correspond to at least two sub-mini-LED lighting panels. This can reduce the number of power ports of the driving module.

[0008] Two adjacent sub mini-LED lighting panels are located at the second distance from the driving module. SubThe mini-LED lighting panel may be electrically connected to receive the electrical signal of the driving module through a first sub-mini-LED lighting panel that is closer to the driving module, thereby reducing the length of the cabling between the second sub-mini-LED lighting panel and the driving module, and further reducing the complexity of the cabling of the electronic device.

[0009] With reference to the first aspect, in some implementations of the first aspect, the first sub-mini-LED lighting panel or the second sub-mini-LED lighting panel further includes a fourth connector, and the electronic device further includes a third electrical connection member.

[0010] The first mini-LED lighting panel group further includes a third sub-mini-LED lighting panel including a fifth connector, the fifth connector being electrically connected to the fourth connector through a third electrical connection member.

[0011] In the present application, multiple sub-mini-LED lighting panels may be connected in series or in parallel with each other, which can reduce the number of sub-mini-LED lighting panels directly connected to the driving module, and further reduce the number of ports of the driving module, making it easier to arrange and wire cables, etc.

[0012] With reference to the first aspect, in some implementations of the first aspect, the electronic device further includes a second mini-LED lighting panel group and a fourth electrical connection member. The driving module further includes a second power port.

[0013] The second mini-LED lighting panel group is electrically connected to the second power port through a fourth electrical connection member. The first power port is different from the second power port.

[0014] In the present application, one power port may correspond to one mini-LED lighting panel group, so as to control the group of sub mini-LED lighting panels correspondingly, thereby implementing group control of multiple sub mini-LED lighting panels.

[0015] With reference to the first aspect, in some implementations of the first aspect, the backplane includes an electrical connection member receiving groove. The electrical connection member receiving groove is provided corresponding to the second electrical connection member. The electrical connection member receiving groove is recessed in a direction away from the mini-LED lighting panel. The second electrical connection member is received in the electrical connection member receiving groove.

[0016] In the present application, most of the area of ​​the second electrical connection member is located between the flat panel and the backplane, and an electrical connection member receiving groove for receiving the second electrical connection member is provided in the backplane so that the second electrical connection member does not reduce the flatness of the flat panel as much as possible.

[0017] With reference to the first aspect, in some implementations of the first aspect, the driving module is located on a side of the backplane away from the first sub-mini-LED lighting panel. The backplane includes a first backplane through-hole corresponding to the first connector. The first electrical connection member or the first connector passes through the first backplane through-hole.

[0018] In the present application, the driving module is placed on the side of the backplane away from the mini-LED lighting panel, so that when the backplane, flat panel, and first sub-mini-LED lighting panel are installed, an assembler or robotic arm can implement an electrical connection between the first electrical connection member and the first connector through the backplane through-hole corresponding to the first connector.

[0019] With reference to the first embodiment, in some implementations of the first embodiment, the driving module is located on a side of the flat panel away from the first sub-mini-LED lighting panel. The flat panel includes a first flat panel through-hole corresponding to the first connector. The first connector passes through the first flat panel through-hole.

[0020] In the present application, the driving module is placed on the side of the backplane away from the mini-LED lighting panel, so that when the backplane, flat panel, and first sub-mini-LED lighting panel are installed, an assembler or robot arm can implement an electrical connection between the first electrical connection member and the first connector through the flat panel through-hole corresponding to the first connector.

[0021] Referring to the first embodiment, in some implementations of the first embodiment, the first sub mini-LED lighting panel includes: A light-emitting unit group including m first light-emitting units, where m is an integer of 1 or more; a drive unit electrically connected to the first connector; The driving unit includes a driving port and a public electrical signal port corresponding to the light-emitting unit group, and one end of each first light-emitting unit in the light-emitting unit group is electrically connected to the public electrical signal port, and the other end of each first light-emitting unit in the light-emitting unit group is electrically connected to the driving port.

[0022] In the present application, a driving circuit is provided for individually controlling a group of light-emitting units, which is beneficial for an electronic device to individually control a single group of light-emitting units, so that the mini-LED lighting panel can be divided into multiple display zones, for example, thousands of display zones, thereby improving the flexibility of driving and controlling the mini-LED lighting panel.

[0023] With reference to the first aspect, in some implementations of the first aspect, the flat panel includes a second flat panel through-hole. The second flat panel through-hole is provided corresponding to the drive unit. The drive unit passes through the second flat panel through-hole.

[0024] In this application, since the driving unit passes through a through hole on the flat panel, the protrusion on the back surface of the first sub-mini-LED lighting panel does not affect the flatness support of the flat panel for the first sub-mini-LED lighting panel.

[0025] Referring to the first aspect, in some implementations of the first aspect, the backplane includes a driving unit receiving groove. The driving unit receiving groove is provided corresponding to the driving unit. The driving unit receiving groove is recessed in a direction away from the first sub mini-LED lighting panel. The driving unit is received in the driving unit receiving groove.

[0026] In the present application, the drive unit accommodating groove is: Sub The drive unit receiving groove may be configured to avoid the drive unit of the mini-LED lighting panel and reduce the risk of collision between the backplane and the drive unit. Furthermore, the bottom and side walls of the drive unit receiving groove may block and cover the drive unit, thereby providing mechanical protection for the drive unit. The drive unit may be relatively sensitive to electromagnetic signal interference. The drive unit receiving groove may further provide an electromagnetic shielding function for the drive unit, so as to reduce the electromagnetic compatibility (EMC) risk of the drive unit.

[0027] Referring to the first embodiment, in some implementations of the first embodiment, the first light-emitting unit is disposed on a first lighting panel end surface of the first sub-mini-LED lighting panel. The driving unit is disposed on a second lighting panel end surface of the first sub-mini-LED lighting panel. The first sub-mini-LED lighting panel includes: A thermal conduction block provided in the drive unit; and a shielding can, The drive unit is placed in the shielded space of the shielding can, and the shielding can can be in contact with the thermally conductive block.

[0028] In this application, the shielding can is attached to the thermal conduction block, which can implement the shielding function of the drive unit, improve the EMC performance of the drive unit, and further transmit the heat of the thermal conduction block. The heat generated by the drive unit can be transmitted to multiple components, thereby reducing overheating of the drive unit.

[0029] Referring to the first embodiment, in some implementations of the first embodiment, the first sub-mini-LED lighting panel further includes a thermal conductive film; A portion of the thermally conductive film is attached to the shielding can, and another portion of the thermally conductive film is attached to the end surface of the second lighting panel.

[0030] In this application, the driving unit may generate heat during operation, that is, there may be a heat dissipation problem, the heat generated by the driving unit can be transferred as far as possible by the thermal conductive film, thereby improving the heat dissipation effect of the driving unit.

[0031] With reference to the first aspect, in some implementations of the first aspect, the thermally conductive film includes a first portion, a second portion, and a third portion, the first portion being attached to a top surface of the shielding can, the second portion being attached to an end surface of the second lighting panel, the third portion being connected between the first portion and the second portion, and the third portion being attached to a side surface of the shielding can.

[0032] In this application, the thermal conductive film may have a certain softness. When the thermal conductive film can cover the entire circumference of the shielding frame, the thermal conductive film may wrinkle. By covering only a part of the side of the shielding frame with the thermal conductive film, the possibility of the thermal conductive film wrinkles can be reduced, and the bonding performance between the thermal conductive film and the shielding can and the bonding performance between the thermal conductive film and the end surface of the second lighting panel can be improved.

[0033] With reference to the first aspect, in some implementations of the first aspect, the electronic device further includes a light-transmitting spacer, the light-transmitting spacer being positioned between the mini-LED lighting panel and the diffusion panel, and the light-transmitting spacer being affixed to a surface of the mini-LED lighting panel.

[0034] In the present application, the light-transmitting spacer can be for controlling the distance between the mini-LED lighting panel and the diffusion panel. By placing the light-transmitting spacer on the surface of the mini-LED lighting panel, it is possible to prevent drilling holes on the surface of the mini-LED lighting panel, so that the light-transmitting spacer does not affect the arrangement of the light-emitting units on the mini-LED lighting panel and improves the display uniformity of the mini-LED lighting panel.

[0035] With reference to the first embodiment, in some implementations of the first embodiment, the light-transmitting spacer includes a curved surface, the curved surface being provided on a side of the light-transmitting spacer closer to the diffusion panel.

[0036] In the present application, the diffusion panel does not need to be fixedly connected to the light-transmitting spacer. In the process of transporting the electronic device, the diffusion panel may collide with the light-transmitting spacer. The structure of the light-transmitting spacer has a curved surface, and the light-transmitting spacer has a small number of corners and straight edges, which can reduce the collision damage of the light-transmitting spacer to the diffusion panel.

[0037] Optionally, the thickness of the light-transmitting spacer is the same as the light mixing distance.

[0038] In the present application, providing a single light-transmitting spacer can precisely control the light mixing distance of the mini-LED lighting panel. In another example, providing multiple light-transmitting spacers in the light mixing direction can flexibly control the light mixing distance of the mini-LED lighting panel. For example, the thickness of the light-transmitting spacer located in the central region of the mini-LED lighting panel can be different from the thickness of the light-transmitting spacer located in the edge region of the mini-LED lighting panel.

[0039] With reference to the first embodiment, in some implementations of the first embodiment, the light-transmitting spacer covers the light-emitting units of the mini-LED lighting panel.

[0040] In this application, the light-transmitting spacer is disposed on the light-emitting unit of the mini-LED lighting panel, so that the arrangement manner of the light-emitting unit in the area where the light-transmitting spacer is located can basically not be affected.

[0041] With reference to the first aspect, in some implementations of the first aspect, the electronic device further includes a diffusion panel support, wherein the diffusion panel support is in contact with the diffusion panel, and a side of the diffusion panel support proximate to the mini-LED lighting panel is spaced apart from a side of the mini-LED lighting panel.

[0042] In the present application, the diffusion panel support is provided so that the light mixing process by the light emitted from the edge region of the mini-LED lighting panel remains approximately the same or essentially unchanged when the size, position, etc. of the diffusion panel is changed, thereby preventing the user from perceiving the difference in the light mixing effect.

[0043] The diffusion panel may endure multiple thermal cycles of thermal expansion and cold contraction. When the expansion and contraction of the diffusion panel is relatively obvious, the diffusion panel may be at least partially detached from the diffusion panel support, affecting the light mixing effect. Since the diffusion panel support and the mini-LED lighting panel are spaced apart, the reflection of light on the inner wall of the diffusion panel support is reduced, and the influence of the diffusion panel support on the light emitted from the edge region of the mini-LED lighting panel is mitigated.

[0044] With reference to the first embodiment, in some implementations of the first embodiment, the diffusion panel support further includes a support protrusion, the support protrusion extending from a main body of the diffusion panel support to the mini-LED lighting panel.

[0045] The support protrusions can help to increase the contact area between the diffusion panel support and the diffusion panel. Providing the support protrusions on the diffusion panel support can reduce the possibility that the diffusion panel is separated from the diffusion panel support, and further allows the diffusion panel to have a relatively small size, thereby improving the screen ratio, light and thin performance, etc. of electronic devices.

[0046] According to a second aspect, there is provided an electronic device. The electronic device may be a backplane, a flat panel, a mini light emitting diode, ( mini-LED ) The mini-LED lighting panel includes a flat panel, a lighting panel, and a diffusion panel. The flat panel is located between the backplane and the mini-LED lighting panel. The mini-LED lighting panel is located between the flat panel and the diffusion panel. A light mixing space is formed between the mini-LED lighting panel and the diffusion panel. Light emitted by the mini-LED lighting panel passes through the light mixing space and enters the diffusion panel.

[0047] The electronic device further includes a light-transmitting spacer, the light-transmitting spacer being located between the mini-LED lighting panel and the diffusion panel, the light-transmitting spacer being affixed to the mini-LED lighting panel.

[0048] In the present application, the light-transmitting spacer can be for controlling the distance between the mini-LED lighting panel and the diffusion panel. The light-transmitting spacer can be arranged on the surface of the mini-LED lighting panel to prevent drilling holes on the surface of the mini-LED lighting panel, so that the light-transmitting spacer does not affect the arrangement of the light-emitting units on the mini-LED lighting panel and improves the display uniformity of the mini-LED lighting panel.

[0049] The side of the light-transmitting spacer close to the diffusion panel is provided with rounded corners, and the light-transmitting spacer has a small amount of corners and straight edges, which can reduce the collision between the light-transmitting spacer and the diffusion panel. The diffusion panel can withstand thermal expansion and cold contraction, so the diffusion panel does not need to be fixedly connected to the light-transmitting spacer. In the process of transporting the electronic device, the diffusion panel may collide with the light-transmitting spacer. The structure of the light-transmitting spacer has rounded corners, and the light-transmitting spacer has a small amount of corners and straight edges, which can reduce the collision damage of the light-transmitting spacer to the diffusion panel.

[0050] With reference to the second embodiment, in some implementations of the second embodiment, the light-transmitting spacer comprises a curved surface, the curved surface being provided on a side of the light-transmitting spacer closer to the diffusion panel.

[0051] In the present application, the diffusion panel does not need to be fixedly connected to the light-transmitting spacer. In the process of transporting the electronic device, the diffusion panel may collide with the light-transmitting spacer. The structure of the light-transmitting spacer has a curved surface, and the light-transmitting spacer has a small number of corners and straight edges, which can reduce the collision damage of the light-transmitting spacer to the diffusion panel.

[0052] Optionally, the thickness of the light-transmitting spacer is the same as the light mixing distance.

[0053] In the present application, providing a single light-transmitting spacer can precisely control the light mixing distance of the mini-LED lighting panel. In another example, providing multiple light-transmitting spacers in the light mixing direction can flexibly control the light mixing distance of the mini-LED lighting panel. For example, the thickness of the light-transmitting spacer located in the central region of the mini-LED lighting panel can be different from the thickness of the light-transmitting spacer located in the edge region of the mini-LED lighting panel.

[0054] With reference to the second embodiment, in some implementations of the second embodiment, the light-transmitting spacer covers the light-emitting units of the mini-LED lighting panel.

[0055] In this application, the light-transmitting spacer is disposed on the light-emitting unit of the mini-LED lighting panel, so that the arrangement manner of the light-emitting unit in the area where the light-transmitting spacer is located can basically not be affected.

[0056] According to a third aspect, there is provided a method of controlling a lighting unit, the method being applied to an electronic device, the electronic device including a mini-LED lighting panel, the mini-LED lighting panel comprising: A light-emitting unit group including m light-emitting units, where m is an integer of 1 or more; A driving unit including a driving port corresponding to the light emitting unit group and a public electrical signal port. Each departure One end of the light unit is electrically connected to the public electrical signal port, and Each departure The other end of the optical unit is electrically connected to the drive port.

[0057] The method includes controlling a brightness state of each light-emitting unit in the light-emitting unit group by controlling a voltage difference between a public electrical signal port and a driving port.

[0058] In the present application, a driving circuit for individually controlling a group of light-emitting units and a control method for the driving circuit are provided. The driving circuit and the control method are useful for an electronic device to individually control a single group of light-emitting units, so that the mini-LED lighting panel can be divided into multiple display zones, for example thousands of display zones, thereby improving the flexibility of driving and controlling the mini-LED lighting panel.

[0059] In the example, the m light-emitting units are connected in series. Controlling the brightness state of each light-emitting unit in the light-emitting unit group by controlling the voltage difference between the public electrical signal port and the driving port is The method includes turning on each light-emitting unit in the light-emitting unit group by controlling the voltage difference to be higher than a first preset voltage, the first preset voltage being equal to or higher than m×V1, where V1 is the operating voltage of the light-emitting unit.

[0060] In the example, the m light-emitting units are connected in series. Controlling the brightness state of each light-emitting unit in the light-emitting unit group by controlling the voltage difference between the public electrical signal port and the driving port is The voltage difference is less than the second preset voltage. Low and controlling to turn off each of the light-emitting units in the light-emitting unit group. The second preset voltage is equal to or lower than m×V1, where V1 is the operating voltage of the light-emitting unit.

[0061] In the example, the m light-emitting units are connected in series. Controlling the brightness state of each light-emitting unit in the light-emitting unit group by controlling the voltage difference between the public electrical signal port and the driving port is The voltage difference is increased by m×V2, thereby increasing the load voltage of each light-emitting unit in the light-emitting unit group by V2.

[0062] In the example, the m light-emitting units are connected in series. Controlling the brightness state of each light-emitting unit in the light-emitting unit group by controlling the voltage difference between the public electrical signal port and the driving port is Reducing the voltage difference by m×V3 includes reducing the load voltage of each light-emitting unit in the light-emitting unit group by V3.

[0063] In the example, the m light-emitting units are connected in parallel. Controlling the brightness state of each light-emitting unit in the light-emitting unit group by controlling the voltage difference between the public electrical signal port and the driving port is The method includes turning on each light-emitting unit in the light-emitting unit group by controlling the voltage difference to be higher than a first preset voltage, the first preset voltage being equal to or higher than V1, where V1 is an operating voltage of the light-emitting unit.

[0064] In the example, the m light-emitting units are connected in parallel. Controlling the brightness state of each light-emitting unit in the light-emitting unit group by controlling the voltage difference between the public electrical signal port and the driving port is The voltage difference is less than the second preset voltage. Low and controlling to turn off each of the light-emitting units in the light-emitting unit group. The second preset voltage is equal to or lower than V1, where V1 is the operating voltage of the light-emitting unit.

[0065] In the example, the m light-emitting units are connected in parallel. Controlling the brightness state of each light-emitting unit in the light-emitting unit group by controlling the voltage difference between the public electrical signal port and the driving port is Increasing the voltage difference by V2 includes increasing the load voltage of each light-emitting unit in the light-emitting unit group by V2.

[0066] In the example, the m light-emitting units are connected in parallel. Controlling the brightness state of each light-emitting unit in the light-emitting unit group by controlling the voltage difference between the public electrical signal port and the driving port is Reducing the voltage difference by V3 includes reducing the load voltage of each light-emitting unit in the light-emitting unit group by V3.

[0067] Referring to the third embodiment, in some implementations of the third embodiment, before controlling the brightness state of each light-emitting unit in the light-emitting unit group, the method includes: The method further includes determining an image block of the image corresponding to the group of light emitting units, the image block including at least one pixel.

[0068] Controlling the brightness state of each light-emitting unit in the light-emitting unit group includes: Controlling a brightness state of each light-emitting unit in the light-emitting unit group based on a pixel value of the at least one pixel.

[0069] In the present application, since the mini-LED lighting panel can be divided into multiple light-emitting unit groups, the target image is divided based on the multiple light-emitting unit groups of the mini-LED lighting panel, so that the light-emitting unit groups of the mini-LED lighting panel are associated with image blocks of the target image, which can help control the mini-LED lighting panel to better suit the style, scenario, etc. of the target image.

[0070] Referring to the third embodiment, in some implementations of the third embodiment, controlling the brightness state of each light-emitting unit in the light-emitting unit group based on the pixel value of the at least one pixel may include: Turning off each light emitting unit in the light emitting unit group when the pixel value of at least one pixel corresponds to black.

[0071] In this application, when a certain area of ​​black image blocks appears in the target image, the corresponding light-emitting units can be turned off, which can reduce the energy consumption of the mini-LED lighting panel. [Brief description of the drawings]

[0072] [Figure 1] FIG. 1 is a schematic diagram of a structure of an electronic device according to an embodiment of the present application. [Diagram 2] FIG. 2 is an exploded view of a screen assembly according to an embodiment of the present application. [Diagram 3] FIG. 1 is a schematic diagram of a structure of an electronic device according to an embodiment of the present application. [Figure 4] FIG. 2 is a schematic diagram of the structure of another electronic device according to an embodiment of the present application. [Diagram 5] FIG. 2 is a schematic diagram of the front structure of the mini-LED lighting panel according to an embodiment of the present application. [Figure 6] FIG. 2 is a schematic diagram of the rear structure of the mini-LED lighting panel according to an embodiment of the present application. [Figure 7] FIG. 2 is a schematic diagram of the structure of a driving circuit of the mini-LED lighting panel according to an embodiment of the present application. [Figure 8] FIG. 2 is a partial cross-sectional view of a mini-LED lighting panel according to an embodiment of the present application. [Figure 9] 1 is a schematic diagram of a structure of a thermally conductive film according to an embodiment of the present application. [Figure 10] FIG. 2 is a schematic diagram of the structure of a driving circuit of a mini-LED lighting panel according to an embodiment of the present application. [Figure 11] 2 is a schematic diagram of the rear structure of a backplane according to an embodiment of the present application. FIG. [Figure 12] FIG. 2 is a schematic diagram of the structure of a driving circuit of another mini-LED lighting panel according to an embodiment of the present application. [Figure 13] FIG. 2 is a schematic diagram of the structure of a driving circuit of another mini-LED lighting panel according to an embodiment of the present application. [Figure 14] FIG. 2 is a schematic diagram of the front structure of a backplane according to an embodiment of the present application. [Figure 15] FIG. 2 is a schematic diagram of the front structure of another backplane according to an embodiment of the present application. [Figure 16] FIG. 2 is a schematic diagram of the front structure of a flat panel according to an embodiment of the present application. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0073] The following describes the technical solutions of the present application with reference to the accompanying drawings.

[0074] FIG. 1 is a schematic diagram of the structure of an electronic device according to an embodiment of the present application.

[0075] The electronic device 100 may be a large-screen electronic device, such as a display screen, a television (e.g., a smart screen), a laptop, a tablet, an in-vehicle device, etc. Optionally, in some scenarios, the electronic device 100 may be a device such as a mobile phone, an e-reader, or a wearable device. In the embodiment shown in FIG. 1, an example in which the electronic device 100 is a television is used for description.

[0076] The electronic device 100 may include a housing 110 and a screen assembly 200 .

[0077] The housing 110 may include a frame and a rear cover. The frame may be disposed around the outer periphery of the rear cover. The housing 110 may include, for example, a middle frame of the electronic device 100. In an example, the middle frame of the electronic device 100 may be housed in the inner periphery of the frame. In another example, the middle frame of the electronic device 100 may be used as the frame of the housing 110.

[0078] The screen assembly 200 may be an assembly that provides a display function to the electronic device 100. A user can view the screen assembly 200 to enjoy media resources such as images and videos. The screen assembly 200 may be attached to the housing 110. The periphery of the screen assembly 200 may be in contact with the inner edge of the frame. The frame may fix the screen assembly 200 to the housing 110. The screen assembly 200 and the rear cover may be separately attached to both sides of the frame, so that the housing 110 becomes a component inside the electronic device, particularly a component on the screen assembly 200, and can provide a mechanical protection function. For example, the screen assembly 200 may be fixed to a middle frame of the electronic device 100.

[0079] The electronic device 100 may further include a control module. A specific implementation of the control module may be, for example, a processor, a connector, a driver board, an integrated circuit, a chip, etc. The control module may be configured, for example, on the screen assembly 200, and the control module may be housed in the housing 110. In an example, the control module may include at least one communication interface, a bus, at least one processor, and at least one memory. The at least one communication interface, the at least one processor, and the at least one memory may communicate with each other through the bus. The at least one communication interface may be configured to receive and transmit signals. For example, a light-emitting unit of the screen assembly 200 may be connected to one communication interface, whereby the control module may trigger the light-emitting unit to emit light. The at least one memory may be configured to store application program code. The application program code may include, for example, code for controlling the light-emitting unit to emit light or not emit light. The at least one processor may be configured to execute the aforementioned application program code to control the light-emitting unit. As used herein, "at least one" includes, for example, "one or more."

[0080] 2 to 4, the following describes a screen assembly 200 provided in an embodiment of the present application. Fig. 2 is an exploded view of the screen assembly 200. Fig. 3 is a schematic diagram of the structure of the screen assembly 200 according to an embodiment of the present application. Fig. 4 is a schematic diagram of the structure of another screen assembly 200 according to an embodiment of the present application.

[0081] The screen assembly 200 may include components such as a backplane 210, a flat panel 220, a mini-LED lighting panel 230, a diffusion panel 240, and an optical film 250, which are stacked together.

[0082] The backplane 210 may have functions such as supporting the electronic device 100 and providing mechanical protection for the electronic components of the electronic device 100. The backplane 210 may be made of a material that meets the requirements of mechanical strength and provides a supporting effect. For example, the backplane 210 may be made of a metal material such as stainless steel, an aluminum alloy, a zinc alloy, a titanium alloy, etc. As another example, the backplane 210 may be a non-metal material such as a resin.

[0083] The backplane 210 may include a first backplane end face and a second backplane end face. The first backplane end face is closer to the mini-LED lighting panel 230, and the second backplane end face is farther from the mini-LED lighting panel. To a user, the first backplane end face will correspond to the front of the electronic device 100, and the second backplane end face will correspond to the back of the electronic device 100. The front of the electronic device 100 may be a side of the electronic device 100 that is often observed when a user uses the electronic device 100. The back of the electronic device 100 may be provided corresponding to the front of the electronic device 100. The back of the electronic device 100 may be a side of the electronic device 100 that is rarely observed when a user uses the electronic device 100. For example, the electronic device 100 may be a television, and the side of the television to which the screen assembly is attached is the front of the television, and the side of the television to which the rear cover is attached is the back of the television. The first backplane end face corresponds to a front side of the electronic device 100, which may indicate that the first backplane end face may be observed when the backplane 210 is observed along a direction in which a user observes the front side of the electronic device 100. The second backplane end face corresponds to a rear side of the electronic device 100, which may indicate that the second backplane end face may be observed when the backplane 210 is observed along a direction in which a user observes the rear side of the electronic device 100. For ease of description, the first backplane end face may be referred to as the front side of the backplane 210, and the second backplane end face may be referred to as the rear side of the backplane 210.

[0084] In one possible example, the first backplane end face may be secured to a rear cover of the housing 110. For example, the first backplane end face may be secured to the rear cover of the housing 110 via a mechanical connection member such as a screw, double-sided adhesive, or foam. In another possible example, the first backplane end face may function as the rear cover of the housing 110, for example.

[0085] The flat panel 220 may be located between the mini-LED lighting panel 230 and the backplane 210. The flat panel 220 may be for supporting the mini-LED lighting panel 230 to maintain or ensure the flatness of the mini-LED lighting panel 230. The flat panel 220 may be made of a rigid conductive material. For example, the flat panel 220 may be an aluminum plate. As shown in FIG. 3 and FIG. 4, the flat panel 220 may be fixed to the backplane 210 via a mechanical connection member such as a double-sided adhesive 281 and a foam 282.

[0086] In a possible scenario, during the transportation of the electronic device 100, the electronic device 100 may be bumped, dropped, etc. In this case, the electronic device 100 will endure a certain degree of external force. The backplane 210 can be deformed accordingly to resist the external force. When the mini-LED lighting panel 230 is directly fixed to the backplane 210, the mini-LED lighting panel 230 may be deformed relatively obviously together with the backplane. To avoid the above case, the transportation difficulty of the electronic device 100 will be increased. The obvious deformation of the backplane 210 may harm the display effect of the mini-LED lighting panel 230. For example, the light mixing distances of different areas of the mini-LED lighting panel 230 are different, so that display problems such as uneven brightness and shadows may occur in the electronic device 100.

[0087] The flat panel 220 is placed between the backplane 210 and the mini-LED lighting panel 230, so that the flat panel 220 can eliminate the transition effect between the mini-LED lighting panel 230 and the backplane 210 in terms of deformation. Since the deformation of the flat panel 220 is smaller than that of the backplane 210, the deformation of the mini-LED lighting panel 230 will be reduced. In other words, when the backplane 210 deforms relatively obviously, the deformation of the mini-LED lighting panel 230 will be as small or as inconspicuous as possible.

[0088] The mini-LED lighting panel 230 may be located on a side of the flat panel 220 away from the backplane 210. As shown in Figures 3 and 4, for example, the mini-LED lighting panel 230 may be secured to the flat panel 220 via a mechanical connection member, such as a thermally conductive adhesive 283. The thermally conductive adhesive 283 may help transfer heat generated by the mini-LED lighting panel 230 to reduce the possibility of the mini-LED lighting panel 230 overheating.

[0089] The diffusion panel 240 may be located on a side of the mini-LED lighting panel 230 away from the backplane 210. Light emitted by the mini-LED lighting panel 230 may pass through the diffusion panel 240 and enter the electronic device 100. A light mixing space 241 may be formed between the diffusion panel 240 and the mini-LED lighting panel 230. The distance between the diffusion panel 240 and the mini-LED lighting panel 230 is referred to as a light mixing distance.

[0090] 3 and 4, the screen assembly 200 may include a light-transmitting spacer 260. The light-transmitting spacer 260 may be disposed on the mini-LED lighting panel 230 and is located between the mini-LED lighting panel 230 and the diffusion panel 240. The light-transmitting spacer 260 may be for separating the mini-LED lighting panel 230 from the diffusion panel 240 to ensure that the light emitted by the mini-LED lighting panel 230 can enter the diffusion panel 240 after passing through the light-mixing space 241. The thickness of the light-transmitting spacer 260 may be, for example, equal to or approximately equal to the light-mixing distance.

[0091] The optical film 250 can change the frequency of the light from the mini-LED lighting panel 230. The optical film 250 can include quantum dots. For example, the mini-LED lighting panel 230 can emit high-energy blue light. The blue light can stimulate the quantum dots encapsulated in the optical film 250, so that the quantum dots can convert the blue light emitted by the mini-LED lighting panel 230 into white light (the quantum dots can be nanoscale semiconductors, and a certain electric field or light pressure applied to the quantum dots can cause the quantum dots to emit light with a certain frequency). The quantum dots can be formed, for example, in a chemical coating or phosphor. In a possible example, the light emitted from the optical film 250 can enter, for example, a liquid crystal panel. The liquid crystal panel can include a liquid crystal layer and a light filter layer. The liquid crystal in the liquid crystal layer can control the liquid crystal unit to be turned on or off so as to control the light intensity of the white light passing through the liquid crystal unit. When the liquid crystal unit is turned on, the white light passing through the liquid crystal unit can illuminate the filter layer. The light filter layer may include a red light filter, a green light filter, and a blue light filter. The red light filter may be for converting white light to red light. The green light filter may be for converting white light to green light. The blue light filter may be for converting white light to blue light. In this manner, the electronic device 100 may be controlled to emit multiple colors of light to display a color pattern.

[0092] In another example, the diffusion panel 240 may include quantum dots, which may cause the diffusion panel 240 to change the frequency of the light from the mini-LED lighting panel 230. In some embodiments, the diffusion panel 240 and the optical film 250 shown in FIG. 3 may be integrally formed.

[0093] The light emitted by the mini-LED lighting panel 230 can be directly incident on the diffusion panel 240, for example, after only the light mixing process, without other optical processes. In other words, in some possible scenarios, quantum dots may not be configured in the light-emitting units of the mini-LED lighting panel 230. This can reduce the structural complexity of the mini-LED lighting panel 230, and the light-emitting units can be arranged relatively densely in the mini-LED lighting panel 230. For example, the size of the phosphor is generally larger than the size of the light-emitting units of the mini-LED lighting panel 230. Packaging the phosphor in the mini-LED lighting panel 230 makes it impossible to arrange the light-emitting units densely.

[0094] Optionally, as shown in FIG. 2 and FIG. 3, the screen assembly 200 may further include, for example, a diffusion panel support 270. As shown in FIG. 2, the diffusion panel support 270 may have a rectangular frame shape. Please refer to the partial enlarged view of FIG. 2. The diffusion panel support 270 may include, for example, four support posts 272. In one example, the four support posts 272 can be connected from head to tail to form a rectangular diffusion panel support 270. The side of the diffusion panel support 270 close to the mini-LED lighting panel 230 may be arranged parallel to the side of the mini-LED lighting panel 230 with a gap therebetween. It is assumed that the gap between the side of the diffusion panel support 270 close to the mini-LED lighting panel 230 and the side of the mini-LED lighting panel 230 is the gap a. As shown in FIG. 10 below, the mini-LED lighting panel 230 may include a plurality of sub-mini-LED lighting panels 2300. The sub-mini-LED lighting panel 2300 adjacent to the diffusion panel support 270 may be a sub-mini-LED lighting panel 2300 located on the periphery of the mini-LED lighting panel 230, such as sub-mini-LED lighting panel 2303, sub-mini-LED lighting panel 2304, or sub-mini-LED lighting panel 2306.

[0095] Factors that may be considered for setting the spacing a may include, for example, dimensional tolerances and assembly tolerances of components such as the backplane and lighting panel.

[0096] Because the thermal diffusion coefficient of the diffusion panel support 270 is different from that of the mini-LED lighting panel 230, when the temperature changes, the distance a between the diffusion panel support 270 and the mini-LED lighting panel 230 may also change. By appropriately setting the distance a, the possibility that the side of the diffusion panel support 270 contacts the mini-LED lighting panel 230 in a temperature change scenario can be reduced.

[0097] If the interval a between the diffusion panel support 270 and the mini-LED lighting panel 230 is too small, the light emitted from the edge region of the mini-LED lighting panel 230 may illuminate the inner wall of the diffusion panel support 270 and be reflected by the inner wall. This may affect the visual effect of the edge region of the mini-LED lighting panel 230. Around the central region of the mini-LED lighting panel 230, there is no obstacle similar to the diffusion panel support 270. If the intensity of the light from the mini-LED lighting panel 230 reflected by the diffusion panel support 270 is too high, the display effects of the central region and the edge region of the mini-LED lighting panel 230 will be significantly different. By appropriately setting the interval a, the display effects of the central region and the edge region of the mini-LED lighting panel 230 can be (almost) the same. Alternatively, by appropriately setting the interval a, at least the difference in the display effects of the central region and the edge region of the mini-LED lighting panel 230 can be (almost) not noticed by the user. In other words, the light intensity from the mini-LED lighting panel 230 reflected by the diffusion panel support 270 may be taken into consideration to set the distance a. When the distance a is appropriate, the light intensity from the mini-LED lighting panel 230 reflected by the diffusion panel support 270 may be lower than the preset light intensity.

[0098] The diffusion panel support 270 may be for supporting an edge region of the diffusion panel 240. In other words, the edge region of the diffusion panel 240 may contact the diffusion panel support 270. The diffusion panel support 270 may enable the edge region of the diffusion panel 240 to be spaced apart from the mini-LED lighting panel 230.

[0099] In an example, for example, the second support edge of the diffusion panel support 270 may be disposed on the backplane 210 via double-sided adhesive 284. The thickness of the diffusion panel support 270 (i.e., the spacing between the first and second support edges) may be (approximately) equal to the sum of the spacing between the mini-LED lighting panel 230 and the backplane 210, the light mixing distance, and the thickness of the mini-LED lighting panel 230.

[0100] In other examples, the back surface of the diffusion panel support 270 may be further disposed on, for example, the flat panel 220 or other structural member of the electronic device 100. The thickness of the diffusion panel support 270 may be correspondingly adjusted to accommodate the light mixing distance of the mini-LED lighting panel 230.

[0101] When the mini-LED lighting panel 230 does not work, the temperature of the diffusion panel 240 is approximately the same as room temperature, and the overall size of the diffusion panel 240 may be relatively small. When the mini-LED lighting panel 230 works normally, both the diffusion panel 240 and the mini-LED lighting panel 230 may expand when heated. However, the thermal expansion coefficients of the diffusion panel 240 and the mini-LED lighting panel 230 are different, and the expansion amounts of the diffusion panel 240 and the mini-LED lighting panel 230 are different. This means that the position of the edge region of the diffusion panel 240 relative to the mini-LED lighting panel 230 may change relatively greatly, at least during the period when the mini-LED lighting panel 230 first starts to work. In this embodiment of the present application, the diffusion panel support 270 can support the diffusion panel 240 by appropriately setting the interval. When the size, position, etc. of the diffusion panel 240 is changed, in the end region of the diffusion panel 240, the change in the distance from the diffusion panel 240 to the mini-LED lighting panel 230 may be relatively small, or the distance from the diffusion panel 240 to the mini-LED lighting panel 230 may be as constant as possible. In other words, the light mixing distance may change slightly or may be essentially constant. In this way, the light mixing process provided by the light emitted from the end region of the mini-LED lighting panel 230 is approximately the same or essentially unchanged, thereby preventing the user from feeling any difference in the light mixing effect.

[0102] 3, both the diffusion panel support 270 and the light-transmitting spacer 260 can be for forming a light-mixing space 241 between the diffusion panel 240 and the mini-LED lighting panel 230. It is assumed that at the central region of the diffusion panel 240, the light-mixing distance between the diffusion panel 240 and the mini-LED lighting panel 230 is light-mixing distance 1, and at the edge region of the diffusion panel 240, the light-mixing distance between the diffusion panel 240 and the mini-LED lighting panel 230 is light-mixing distance 2.

[0103] When only the diffusion panel support 270 is used, there is no component in the central region of the diffusion panel 240 that separates the diffusion panel 240 from the mini-LED lighting panel 230. Therefore, in the central region of the diffusion panel 240, the spacing between the diffusion panel 240 and the mini-LED lighting panel 230 cannot be ensured, so the light mixing distance 1 and the light mixing distance 2 are significantly different.

[0104] When only the light-transmitting spacer 260 is used, there is no component at the edge region of the diffusion panel 240 that separates the diffusion panel 240 from the mini-LED lighting panel 230. Therefore, at the edge region of the diffusion panel 240, the spacing between the diffusion panel 240 and the mini-LED lighting panel 230 cannot be ensured, so the light mixing distance 1 and the light mixing distance 2 are significantly different.

[0105] The fact that light mixing distance 1 and light mixing distance 2 may be significantly different may result in a non-uniform light mixing effect when the light emitted from the edge region of the diffusion panel 240 and the light emitted from the central region of the diffusion panel 240 have a relatively large difference and may endure the light mixing process, causing a non-uniform light mixing effect.

[0106] When both the diffusion panel support 270 and the light-transmitting spacer 260 are disposed, in the central region of the diffusion panel 240, the light-transmitting spacer 260 can separate the diffusion panel 240 from the mini-LED lighting panel 230, and in the edge region of the diffusion panel 240, the diffusion panel support 270 can separate the diffusion panel 240 from the mini-LED lighting panel 230. This is the light mixing distance 1 and light mixing distance 2 can be approximately the same, ensuring that the light emitted from the edge and central regions of the diffusion panel 240 undergoes approximately the same light mixing process, thereby improving the light mixing uniformity of the electronic device 100.

[0107] 3, the diffusion panel support 270 may further include, for example, a support protrusion 271. The support protrusion 271 may extend from a main body of the diffusion panel support 270 to the mini-LED lighting panel 230. The support protrusion 271 may contact the diffusion panel 240. A surface of the support protrusion 271 in contact with the diffusion panel 240 may be a part of a surface of the diffusion panel support 270 in contact with the diffusion panel 240. The support protrusion 271 may help to increase the contact area between the diffusion panel support 270 and the diffusion panel 240.

[0108] As described above, the spacing between the side of the diffusion panel support 270 close to the mini-LED lighting panel 230 and the mini-LED lighting panel 230 may be the spacing a. Furthermore, the diffusion panel 240 may endure multiple thermal cycles of thermal expansion and cold contraction. When the contraction of the diffusion panel 240 is relatively obvious, for example, the minimum spacing between the side of the diffusion panel 240 and the side of the mini-LED lighting panel 230 is smaller than the spacing a, that is, the surface on which the side of the diffusion panel 240 is located may be located between the diffusion panel support 270 and the mini-LED lighting panel 230, the diffusion panel 240 may at least partially separate from the support of the diffusion panel support 270. When the diffusion panel 240 cannot be supported by the diffusion panel support 270 at the end region of the diffusion panel 240, the light mixing distance between the diffusion panel 240 and the mini-LED lighting panel 230 becomes relatively unstable, which affects the light mixing effect.

[0109] In a possible way, increasing the size of the diffusion panel 240 can ensure that the diffusion panel 240 does not separate from the diffusion panel support 270 even when it contacts as much as possible. However, in this way, the horizontal size and vertical size of the electronic device 100 will be increased (both the horizontal and vertical directions can be perpendicular to the thickness direction, and the thickness direction can be perpendicular to the rear cover of the electronic device 100). When the vertical and horizontal occupancy areas of the mini-LED lighting panel 230 in the electronic device 100 are all unchanged, increasing the horizontal and vertical sizes of the diffusion panel 240 may cause an increase in the horizontal and vertical occupancy areas of the electronic device 100, and may even reduce the screen ratio of the electronic device 100. In the example shown in FIG. 3, providing the support protrusion 271 on the diffusion panel support 270 can reduce the possibility that the diffusion panel 240 separates from the diffusion panel support 270, and can even allow the diffusion panel 240 to have a relatively small size, thereby improving the screen ratio, lightness and thickness performance, etc. of the electronic device 100.

[0110] Optionally, as shown in FIG. 4, the backplane 210 may include a stepped structure 217. The backplane 210 may include a first stepped surface 2171, a second stepped surface 2172, and a stepped side surface 2173. The stepped side surface 2173 may be connected between the first stepped surface 2171 and the second stepped surface 2172. The diffusion panel 240 may be disposed on the first stepped surface 2171. The flat panel 220 may be disposed on the second stepped surface 2172. The mini-LED lighting panel 230 may be surrounded by the stepped side surface 2173. The stepped side surface 2173 may be spaced apart from the side surface of the mini-LED lighting panel 230. The example shown in FIG. 4 differs from the example shown in FIG. 3 in that the backplane 210 may directly provide mechanical support for the diffusion panel 240.

[0111] The mini-LED lighting panel 230 may include multiple sub-mini-LED lighting panels. The following describes a sub-mini-LED lighting panel 2300 as an example. The sub-mini-LED lighting panel 2300 may include a first lighting panel end surface 2301 and a second lighting panel end surface 2302.

[0112] 5 is a schematic diagram of a structure of a first lighting panel edge 2301 of the sub mini-LED lighting panel 2300 according to an embodiment of the present application. The light emitted by the sub mini-LED lighting panel 2300 may be emitted from the first lighting panel edge 2301 of the sub mini-LED lighting panel 2300. The first lighting panel edge 2301 of the sub mini-LED lighting panel 2300 may be a surface of the sub mini-LED lighting panel 2300 that is close to the diffusion panel 240 and far from the backplane 210. For example, the first lighting panel edge 2301 may be divided into a light-emitting region A and a light-emitting region B. With reference to FIG. 3 to FIG. 5, the following describes the structure of the first lighting panel edge 2301 of the sub mini-LED lighting panel 2300.

[0113] The sub-mini-LED lighting panel 2300 may include a plurality of light-emitting units 231. For example, the sub-mini-LED lighting panel 2300 may include a plurality of light-emitting units 231 arranged in an array. The light-emitting units 231 may be, for example, chips with a light-emitting function. Alternatively, the light-emitting units 231 may be light-emitting diodes. FIG. 5 further illustrates a partial schematic diagram of the sub-mini-LED lighting panel 2300. With reference to FIGS. 3 to 5, a light-transmitting spacer 260 may be fixed to a side of the sub-mini-LED lighting panel 2300 close to the diffusion panel 240. The light-transmitting spacer 260 may be, for example, fixed to the side of the sub-mini-LED lighting panel 2300 close to the diffusion panel 240 by a light-transmitting adhesive. Sub The light-emitting unit 231 may be attached to the mini-LED lighting panel 2300. In some possible scenarios, a transparent gasket 260 may cover the light-emitting unit 231. The light emitted by the sub-mini-LED lighting panel 2300 may pass through the light-transmitting spacer 260. Sub The effect of the light-transmitting spacer 260 on the light emitted by the mini-LED lighting panel 2300 may be as small as possible so that the user does not (almost) recognize the presence of the light-transmitting spacer 260 from the exterior of the electronic device 100. In a possible example, the electronic device 100 may include multiple light-transmitting spacers 260. The multiple light-transmitting spacers 260 may be arranged on the sub-mini-LED lighting panel 2300, for example, in an array. As shown in FIG. 5, for example, eight light-transmitting spacers 260 may be arranged on one sub-mini-LED lighting panel 2300.

[0114] 5 further illustrates possible configurations of optically transparent spacer 260. Optically transparent spacer 260 may be in a shape such as a circle or oval with no corners or straight edges.

[0115] The optically transparent spacer 260 may include a curved surface 261, which is a curved surface connected between an end surface and a side surface of the optically transparent spacer 260.

[0116] By providing the curved surface 261 on the side of the light-transmitting spacer 260 close to the diffusion panel 240, it is possible to reduce collision damage between the light-transmitting spacer 260 and the diffusion panel 240. For example, in the process of transporting the electronic device 100, the diffusion panel 240 may undergo thermal expansion and cold contraction. Therefore, the diffusion panel 240 may come into contact with the light-transmitting spacer 260, but the diffusion panel 240 is not fixed to the light-transmitting spacer 260. Therefore, the diffusion panel 240 may collide with the light-transmitting spacer 260. By providing the curved surface 261 on the surface of the light-transmitting spacer 260, it is possible to reduce collision damage of the light-transmitting spacer 260 to the diffusion panel 240.

[0117] 6 is a schematic diagram of the structure of the second lighting panel end surface 2302 of the sub mini-LED lighting panel 2300 according to an embodiment of the present application. The second lighting panel end surface 2302 of the sub mini-LED lighting panel 2300 may be located close to the backplane 210 and far from the diffusion panel 240. With reference to FIG. 3 to FIG. 6, the following: Sub The structure of the second lighting panel edge 2302 of the mini-LED lighting panel 2300 will now be described.

[0118] A double-sided adhesive may be provided on the second lighting panel end surface 2302 of the sub mini-LED lighting panel 2300, and the double-sided adhesive may fixedly connect the sub mini-LED lighting panel 2300 and the flat panel 220. In a possible example, the double-sided adhesive may be a thermally conductive adhesive 283. Since the sub mini-LED lighting panel 2300 may generate relatively high heat during operation, the thermally conductive adhesive 283 helps transfer heat from the sub mini-LED lighting panel 2300 to the flat panel 220, and helps improve the heat dissipation performance of the electronic device 100.

[0119] A conductive elastic piece 285 may be further disposed on the second lighting panel end surface 2302 of the sub mini-LED lighting panel 2300. One end of the conductive elastic piece 285 may be electrically connected to the sub mini-LED lighting panel 2300. The other end of the conductive elastic piece 285 may contact the flat panel 220. When the sub mini-LED lighting panel 2300 operates, the light-emitting unit 231 of the sub mini-LED lighting panel 2300 may accumulate electric charge. The mini-LED lighting panel 2300 may be grounded through the conductive elastic piece 285 to improve the electromagnetic compatibility (EMC) of the electronic device 100.

[0120] The sub mini-LED lighting panel 2300 may further include one or more driving units 233 (which may also be referred to as control units) and one or more connectors 232.

[0121] Signals related to the sub mini-LED lighting panel 2300 can be input to the driving unit 233 via the connector 232. Drive The signal input to the driving unit 233 may include an electrical signal and a control signal. The electrical signal can be for providing driving electrical energy for the driving unit 233 and the light-emitting unit 231. The control signal can indicate the brightness state of the light-emitting unit 231 to the driving unit 233, so that the driving unit 233 can control the brightness state of the light-emitting unit 231 according to the control signal. When the light-emitting unit 231 is in a bright state, the light-emitting unit 231 can be driven by the driving unit 233. Optionally, when the light-emitting unit 231 is in a bright state, the brightness of the light-emitting unit 231 can be adjusted. When the light-emitting unit 231 is in a dim state, the light-emitting unit 231 can be turned off by the driving unit 233 (i.e., the light-emitting unit 231 does not need to be driven).

[0122] 6, in an example, the connector 232 may include multiple connector ports 2320. For example, the connector 232 may include 30 to 100 connector ports 2320. Correspondingly, the drive unit 233 may include multiple signal input ports corresponding to the multiple connector ports. The multiple connector ports and the multiple signal input ports may be electrically connected in a one-to-one, one-to-many, or many-to-many correspondence manner, etc.

[0123] Based on the function of the connector port 2320, the connector 232 may, for example, include one or more electrical signal ports and one or more control signal ports. The electrical signal ports may be configured to transmit electrical signals. The control signal ports may be configured to transmit control signals. Correspondingly, based on the function of the signal input ports, the driving unit 233 may, for example, include one or more control signal input ports and one or more electrical signal input ports. The electrical signal input ports of the driving unit 233 may be electrically connected to the electrical signal ports of the connector 232. The control signal input ports of the driving unit 233 may be electrically connected to the control signal ports of the connector 232.

[0124] Optionally, the connector 232 may be further configured to carry signals for other sub-mini-LED lighting panels 2300 or other electrical components.

[0125] The driving unit 233 may be configured to drive each light-emitting unit 231 of the sub mini-LED lighting panel 2300 and control the light emission of each light-emitting unit 231 of the sub mini-LED lighting panel 2300. For example, the driving unit 233 may be configured to turn off the light-emitting unit 231, control the brightness of the light-emitting unit 231, etc. The driving unit 233 may be, for example, a driving integrated circuit (IC) chip.

[0126] 6, the sub mini-LED lighting panel 2300 may include two driving units 233, namely, driving unit 233A and driving unit 233B. The driving unit 233A may drive the light-emitting units 231 located in the light-emitting area A of the sub mini-LED lighting panel 2300. The driving unit 233B may drive the light-emitting units 231 located in the light-emitting area B of the sub mini-LED lighting panel 2300. The light-emitting area A and the light-emitting area B may not overlap each other.

[0127] 6 to 7, the following describes the driving solution of the light-emitting unit 231 by using the driving unit 233A as an example. The specific values ​​mentioned below are only for ease of description. The embodiments of the present application are not intended to be limited to the following specific values.

[0128] To perform driving in the light-emitting area A in blocks, that is, the light-emitting area A can be divided into n light-emitting blocks, and any light-emitting block in the light-emitting area A can be individually controlled by the driving unit 233A. The multiple light-emitting units 231 in the light-emitting area A can be divided into n light-emitting unit groups. The n light-emitting unit groups can be in one-to-one correspondence with the n light-emitting blocks in the light-emitting area A. In other words, one or more light-emitting units 231 in a light-emitting block belong to, and only belong to, a corresponding light-emitting unit group.

[0129] The driving unit 233A may further include, for example, a public electrical signal port and n driving ports, where n is an integer greater than 1. One or more public electrical connection cables and n driving cables may be configured in the light-emitting area A of the sub mini-LED lighting panel 2300. The public electrical signal port may be electrically connected to the public electrical connection cable. For example, the n driving cables may be in one-to-one correspondence with the n driving ports of the driving unit 233A. Each driving port may be electrically connected to a corresponding driving cable. The n driving cables may be in one-to-one correspondence with the n light-emitting unit groups. Each driving cable may be electrically connected to each light-emitting unit 231 in the corresponding light-emitting unit group. In this way, all light-emitting units in a light-emitting unit group may be electrically connected to the same driving port. For example, all light-emitting units in a light-emitting unit group may be electrically connected to the same public electrical signal port.

[0130] In the example, it is assumed that there are 1000 light-emitting units 231 in the light-emitting area A. The driving unit 233A may include 50 ports, one of which is a public electrical signal port, 40 of which are electrical signal ports, and 9 of which are control signal ports. The sub mini-LED lighting panel 2300 may be configured with 40 driving cables electrically connected to the 40 electrical signal ports in a one-to-one manner, and a public electrical connection cable electrically connected to the public electrical signal port. As mentioned above, the light-emitting area A may be divided into 40 light-emitting blocks, and the light-emitting unit group corresponding to each light-emitting block may include 25 light-emitting units. In other words, the driving unit 233A may individually drive the 25 light-emitting units in one light-emitting unit group.

[0131] In another example, it is assumed that there are 60 light-emitting units 231 in the light-emitting area A. The driving unit 233A may include 66 ports, of which 1 is a public electrical signal port and 60 are electrical signal ports; 51 is a control signal port. The sub mini-LED lighting panel 2300 may be configured with 60 driving cables electrically connected to the 60 electrical signal ports in a one-to-one manner, and a public electrical connection cable electrically connected to the public electrical signal port. As mentioned above, the light-emitting area A may be divided into 60 light-emitting blocks, and the light-emitting unit group corresponding to each light-emitting block may include one light-emitting unit. In other words, the driving unit 233A may individually drive 25 light-emitting units in one light-emitting unit group.

[0132] As mentioned above, when there are a small number of ports of the driving units 233 and a large number of light-emitting units 231 in the light-emitting area, if it is expected that the number of light-emitting units 231 that can be individually controlled can be as small as possible, the number of driving units 233 will be relatively large, and if it is expected that the number of driving units 233 arranged in the sub mini-LED lighting panel 2300 can be as small as possible, the number of light-emitting units 231 that can be individually controlled will be relatively large.

[0133] FIG. 7 shows a possible driving circuit for individually driving each of the 25 light-emitting units 231 .

[0134] The drive circuit may include five public electrical connection cables: public electrical connection cable 501, public electrical connection cable 502, public electrical connection cable 503, public electrical connection cable 504, and public electrical connection cable 505. All five public electrical connection cables are electrically connected to public electrical signal port 400.

[0135] The drive circuit may further include 25 drive cables, namely, drive cable 511, drive cable 512, drive cable 513, drive cable 514, drive cable 515, drive cable 521, drive cable 522, drive cable 523, drive cable 524, drive cable 525, drive cable 531, drive cable 532, drive cable 533, drive cable 534, drive cable 535, drive cable 541, drive cable 542, drive cable 543, drive cable 544, drive cable 545, drive cable 551, drive cable 552, drive cable 553, drive cable 554, and drive cable 555.

[0136] The 25 drive ports electrically connected one-to-one to the 25 drive cables may be drive port 411, drive port 412, drive port 413, drive port 414, drive port 415, drive port 421, drive port 422, drive port 423, drive port 424, drive port 425, drive port 431, drive port 432, drive port 433, drive port 434, drive port 435, drive port 441, drive port 442, drive port 443, drive port 444, drive port 445, drive port 451, drive port 452, drive port 453, drive port 454, and drive port 455.

[0137] The driving circuit may include 25 light-emitting units 231 arranged in a 5×5 array. It is assumed that the light-emitting unit 231(x,y) may represent the light-emitting unit 231 in the xth row and the yth column (1≦x≦5, 1≦y≦5, x and y are both integers). In this case, one end of the light-emitting unit 231(x,y) may be electrically connected to the public electrical signal port 400 via the public electrical connection cable 50x, and the other end of the light-emitting unit 231(x,y) may be electrically connected to the driving port 4yx via the driving cable 5yx. By controlling the voltage difference between the public electrical signal port 400 and the driving port 4yx, the load voltage of the light-emitting unit 231(x,y) may be controlled (the load voltage of the light-emitting unit 231 may be the voltage difference between both ends of the light-emitting unit 231).

[0138] In the example, the light-emitting unit 231(2,3) may be the light-emitting unit in the second row and the third column. One end of the light-emitting unit 231(2,3) may be electrically connected to the public electrical signal port 400 via a public electrical connection cable 502. The other end of the light-emitting unit 231(2,3) may be electrically connected to the driving port 432 via a driving cable 532. By controlling the voltage difference between the public electrical signal port 400 and the driving port 432, the load voltage of the light-emitting unit 231(2,3) may be controlled (the load voltage of the light-emitting unit may be the voltage difference between both ends of the light-emitting unit).

[0139] Because the driving port 4yx cannot be electrically connected to other light-emitting units except for the light-emitting unit 231(x,y), the driving circuit shown in FIG. 7 enables the load voltage of the light-emitting unit 231(x,y) to be individually controlled by the driving unit 233.

[0140] For a driving circuit for individually driving a light-emitting unit group including a plurality of light-emitting units 231, please refer to the example shown in FIG.

[0141] In the method of driving the light-emitting units 231, the electronic device 100 may turn on all the light-emitting units 231 in the light-emitting unit group corresponding to the driving port by controlling the voltage difference between the public electrical signal port and the driving port.

[0142] For example, the first light-emitting unit group includes m light-emitting units 231. The m light-emitting units 231 are connected in series. The first light-emitting unit group corresponds to a first driving port. The electronic device 100 may determine that the voltage difference between the public electrical signal port and the first driving port is higher than a first preset voltage. The first preset voltage may be equal to or higher than m×V1. V1 may be the operating voltage of the light-emitting unit 231.

[0143] As another example, the first light-emitting unit group includes m light-emitting units 231. The m light-emitting units 231 are connected in parallel. The first light-emitting unit group corresponds to a first driving port. The electronic device 100 may determine that the voltage difference between the public electrical signal port and the first driving port is higher than a first preset voltage. The first preset voltage may be equal to or higher than V1. V1 may be the operating voltage of the light-emitting unit 231.

[0144] 7, the electronic device 100 may turn on the light-emitting unit 231(2,3) by controlling the voltage difference between the public electrical signal port 400 and the driving port 432. The electronic device 100 may determine that the voltage difference between the public electrical signal port 400 and the driving port 432 is higher than a first preset voltage. The first preset voltage may be equal to or higher than the operating voltage of the light-emitting unit 231(2,3).

[0145] In the method of driving the light-emitting units 231, the electronic device 100 may turn off all the light-emitting units 231 in the light-emitting unit group corresponding to the driving port by controlling the voltage difference between the public electrical signal port and the driving port.

[0146] For example, the first light-emitting unit group includes m light-emitting units 231. The m light-emitting units 231 are connected in series. The first light-emitting unit group corresponds to a first driving port. The electronic device 100 may determine that the voltage difference between the public electrical signal port and the first driving port is lower than a second preset voltage. The first preset voltage may be equal to or lower than m×V1. V1 may be the operating voltage of the light-emitting unit 231.

[0147] As another example, the first light-emitting unit group includes m light-emitting units 231. The m light-emitting units 231 are connected in parallel. The first light-emitting unit group corresponds to a first driving port. The electronic device 100 may determine that the voltage difference between the public electrical signal port and the first driving port is lower than a second preset voltage. The first preset voltage may be equal to or higher than V1. V1 may be the operating voltage of the light-emitting unit 231.

[0148] 7, the electronic device 100 may turn off the light-emitting unit 231(2,3) by controlling the voltage difference between the public electrical signal port 400 and the driving port 432. The electronic device 100 may determine that the voltage difference between the public electrical signal port 400 and the driving port 432 is higher than a second preset voltage. The first preset voltage may be equal to or lower than the operating voltage of the light-emitting unit 231(2,3).

[0149] In the method of driving the light-emitting units 231, the electronic device 100 can control the light-emitting brightness of all the light-emitting units 231 in the light-emitting unit group corresponding to the driving port by controlling the voltage difference between the public electrical signal port and the driving port.

[0150] For example, the first light-emitting unit group includes m light-emitting units 231. The m light-emitting units 231 are connected in series. The first light-emitting unit group corresponds to a first driving port. The electronic device 100 can increase the voltage difference between the public electrical signal port and the first driving port by m×V2, so that the load voltage of each light-emitting unit 231 can be increased by V2 to increase the light-emitting brightness of the light-emitting unit 231. The electronic device 100 can decrease the voltage difference between the public electrical signal port and the first driving port by m×V3, so that the load voltage of each light-emitting unit 231 can be reduced by V3 to decrease the light-emitting brightness of the light-emitting unit 231.

[0151] For example, the first light-emitting unit group includes m light-emitting units 231. The m light-emitting units 231 are connected in parallel. The first light-emitting unit group corresponds to a first driving port. The electronic device 100 can increase the voltage difference between the public electrical signal port and the first driving port by V2, so that the load voltage of each light-emitting unit 231 can be increased by V2 to increase the light-emitting brightness of the light-emitting unit 231. The electronic device 100 can decrease the voltage difference between the public electrical signal port and the first driving port by V3, so that the load voltage of each light-emitting unit 231 can be reduced by V3 to decrease the light-emitting brightness of the light-emitting unit 231.

[0152] 7, the electronic device 100 may control the light emission brightness of the light emitting unit 231(2,3) by controlling the voltage difference between the public electrical signal port 400 and the driving port 432. For example, the electronic device 100 may increase the voltage difference between the public electrical signal port 400 and the driving port 432 to increase the light emission brightness of the light emitting unit 231(2,3). The electronic device 100 may decrease the voltage difference between the public electrical signal port 400 and the driving port 432 to decrease the light emission brightness of the light emitting unit 231(2,3).

[0153] In an example, the electronic device 100 may display a target image, and the target image may include multiple pixels. The electronic device 100 may control the brightness state of the corresponding light-emitting unit group based on the pixel value of the pixel. For example, when the pixel value of pixel p corresponds to black, the driving unit 233 may stop driving the light-emitting unit group p corresponding to pixel p, i.e., turn off all the light-emitting units 231 in the light-emitting unit group p. The light-emitting unit group p may include one or more light-emitting units 231.

[0154] In an example, the electronic device 100 may display a target image, which may include multiple image blocks (the image blocks may also be referred to as tree blocks, coding units, coding nodes, etc.), and the image blocks may be obtained by dividing the target image. Each image block may include multiple pixels. The electronic device 100 may control the brightness state of the corresponding light-emitting unit group based on the image block. For example, the image block q may include multiple pixels q, the light-emitting unit group q may include multiple light-emitting units 231q, and the image block q may correspond to the light-emitting unit group q. When the pixel values ​​of all the pixels q in the image block q all correspond to black, the sub mini-LED lighting panel 2300 may stop driving the light-emitting unit group q corresponding to the image block q, i.e., turn off all the light-emitting units 231 in the light-emitting unit group q. The light-emitting unit group q may include one or more light-emitting units 231.

[0155] FIG. 8 is a partial cross-sectional view of the sub mini-LED lighting panel 2300.

[0156] As described above, the sub mini-LED lighting panel 2300 may include one or more driving units 233. To improve the performance of the driving units 233, the sub mini-LED lighting panel 2300 may further include other components.

[0157] For example, the sub mini-LED lighting panel 2300 may further include a shielding can 235. The shielding can 235 may be provided on a second lighting panel end surface 2302 of the sub mini-LED lighting panel 2300. A cavity may be formed between the shielding can 235 and the second lighting panel end surface 2302. Since the driving unit 233 may be housed in the cavity, the shielding can 235 may be for blocking a signal to the driving unit 233.

[0158] The shielding can 235 may include a shielding cover 2351 and a shielding frame 2352. The shielding cover 2351 and the shielding frame 2352 may be provided separately or integrally. The shielding frame 2352 may be located between the shielding cover 2351 and the second lighting panel end surface 2302. One end of the shielding frame 2352 may be fixed to the second lighting panel end surface 2302. The other end of the shielding frame 2352 may be connected to the shielding cover 2351. Optionally, the second lighting panel end surface 2302 may include one or more slots 2353. One end of the shielding frame 2352 remote from the shielding cover 2351 may be Sub It is inserted into slot 2353 so as to be fixed to the mini-LED lighting panel 2300.

[0159] As another example, the sub mini-LED lighting panel 2300 may further include a thermally conductive block 234. The thermally conductive block 234 may be provided on the driving unit 233. The thermally conductive block 234 may be for conducting heat in the driving unit 233. In the example shown in FIG. 8 , the thermally conductive block 234 may be located between the shielding cover 2351 and the driving unit 233, and contacts the shielding cover 2351 so that the heat of the thermally conductive block 234 can be further conducted to the shielding can 235.

[0160] In the example shown in FIG. 8, the sub mini-LED lighting panel 2300 may further include a thermally conductive film 236. The thermally conductive film 236 may be made of a material with high thermal conductivity, such as silver, copper, and graphite. The thermally conductive film 236 may include a first portion 2361, a second portion 2362, and a third portion 2363. The first portion 2361 may be attached to the side of the shielding cover 2351 away from the thermally conductive block 234 (i.e., the top surface of the shielding can 235). In this way, the heat in the shielding can 235 may be further guided to the thermally conductive film 236. The second portion 2362 may be attached to the second lighting panel end surface 2302. The third portion 2363 may be connected between the first portion 2361 and the second portion 2362. For example, the third portion 2363 may be provided parallel to one or more side surfaces of the shielding frame 2352 (i.e., the side surfaces of the shielding can 235). The schematic diagram of the structure of the heat conductive film 236 shown in FIG. 9 is obtained by observing the heat conductive film 236 along the X direction shown in FIG. 8. As shown in FIG. 9, the third portion 2363 may be provided parallel to one side surface of the shielding frame 2352. The remaining side surfaces of the shielding frame 2352 may not be covered by the heat conductive film 236. In this manner, the heat at the heat conductive film 236 may be further guided to the second lighting panel end surface 2302. This can reduce the possibility of the driving unit 233 overheating.

[0161] The thermally conductive film 236 shown in FIG. 9 is obtained by cutting the raw material of the thermally conductive film 236. For example, two parallel lines may be cut from the edge of the thermally conductive film 236 toward the center of the thermally conductive film 236, and the thermally conductive film 236 is not cut completely. The two line segments may not be connected to each other, and the lengths of the two lines may be approximately the same. After being cut, the thermally conductive film 236 may form a first portion 2361, a second portion 2362, and a third portion 2363. The first portion 2361 may be bent relative to the third portion 2363, and the third portion 2363 may be bent relative to the second portion 2362. The multiple portions of the thermally conductive film 236 may be coated correspondingly on the shielding can 235 and the second lighting panel end surface 2302.

[0162] In other possible examples, the raw material of the thermally conductive film 236 may have other cutting methods or shapes, so that the thermally conductive film 236 can cover multiple sides of the shielding frame 2352.

[0163] The thermally conductive film 236 may be flexible. When the thermally conductive film 236 is not cut and directly covers the periphery of the shielding can 235, the thermally conductive film 236 may wrinkle. Cutting the thermally conductive film 236 can reduce the possibility of the thermally conductive film 236 wrinkled, and improve the bonding performance between the thermally conductive film 236 and the shielding can 235 and between the thermally conductive film 236 and the end surface 2302 of the second lighting panel.

[0164] In another example, the sub mini-LED lighting panel 2300 may include one or two of the thermally conductive block 234, the shielding can 235, and the thermally conductive film 236. For example, the sub mini-LED lighting panel 2300 may only include the thermally conductive block 234 and the thermally conductive film 236. The thermally conductive film 236 may be connected between the thermally conductive block 234 and the second lighting panel end surface 2302. As another example, the sub mini-LED lighting panel 2300 may only include the thermally conductive film 236. The thermally conductive film 236 may be in contact with the heat dissipation surface of the driving unit 233 and is connected between the driving unit 233 and the second lighting panel end surface 2302.

[0165] 10 and 11, the electrical connection relationship between the mini-LED lighting panel 230 and the components provided on the backplane 210 will be described below.

[0166] The mini-LED lighting panel 230 may include multiple sub-mini-LED lighting panels 2300. As shown in FIG. 10 , the screen assembly 200 may include 16 sub-mini-LED lighting panels 2300. In other examples, the mini-LED lighting panel 230 may include more or fewer sub-mini-LED lighting panels 2300.

[0167] The screen assembly 200 may further include a driving module 211. The driving module 211 may be provided on the rear surface of the backplane 210.

[0168] The driving module 211 may be configured to input a signal to a plurality of sub-mini-LED lighting panels 2300. The driving module 211 may include a plurality of power ports. A signal output by one power port may be input to at least one mini-LED lighting panel group. One mini-LED lighting panel group may include at least two sub-mini-LED lighting panels 2300. As shown in FIG. 10 , the driving module 211 may include eight power ports. A signal output by the first power port 2111 may be input to the first mini-LED lighting panel group via the electrical connection member 212. The first mini-LED lighting panel group may include the sub-mini-LED lighting panel 2303 and the sub-mini-LED lighting panel 2304. A signal output by the second power port 2112 may be input to the second mini-LED lighting panel group via the electrical connection member 2121. The second mini-LED lighting panel group may include a sub-mini-LED lighting panel 2305 and a sub-mini-LED lighting panel 2306.

[0169] The following uses the first sub-mini-LED lighting panel 2303 and the second sub-mini-LED lighting panel 2304 identified in FIG. 10 as an example for purposes of description.

[0170] The first sub mini-LED lighting panel 2303 may include a first connector 2321. For example, the first connector 2321 of the first sub mini-LED lighting panel 2303 may be electrically connected to the power port 2111 of the driving module 211 by using a first electrical connection member 212 (the electrical connection member may be, for example, a flexible circuit board). A signal from the driving module 211 may be input to the driving unit 233 of the first sub mini-LED lighting panel 2303 through the first connector 2321 to drive the multiple first light-emitting units of the first sub mini-LED lighting panel 2303. As shown in FIG. 11 , the first electrical connection member 212 may be bent or folded to reduce the space occupied by the first electrical connection member 212 in the electronic device 100.

[0171] Based on the function of the signal, the signal input by the driving module 211 to the first connector 2321 may include an electrical signal and a control signal. With reference to the foregoing description, the electrical signal may be correspondingly input to the electrical signal port of the first connector 2321, and the control signal may be correspondingly input to the control signal port of the first connector 2321. The electrical signal may be for providing driving electrical energy for the driving unit 233 and the light-emitting unit 231. The control signal may indicate the brightness state of the light-emitting unit 231 to the driving unit 233, so that the driving unit 233 may control the brightness state of the light-emitting unit 231 according to the control signal.

[0172] In the example, the electronic device displays a target image. A first image area of ​​the target image corresponds to the first sub-mini-LED lighting panel 2303. The image formation of the first image area is performed by the first sub-mini-LED lighting panel 2303. The driving module 211 may input a first control signal to the driving unit 233 of the first sub-mini-LED lighting panel 2303 through the first connector 2321. The first control signal may indicate a pixel value of a pixel in the first image area. The driving unit 233 of the first sub-mini-LED lighting panel 2303 may control a brightness state of the light-emitting unit 231 of the first sub-mini-LED lighting panel 2303 according to the pixel value of the pixel in the first image area. For a specific implementation of the driving unit 233 driving the multiple light-emitting units 231, please refer to the above description.

[0173] Since the driving module 211 and the first sub mini-LED lighting panel 2303 are respectively located on both sides of the backplane 210, as shown in Fig. 11, the backplane 210 may include a first backplane through-hole 215, which is provided corresponding to the first connector 2321. The first electrical connection member 212 can pass through the first backplane through-hole 215 to implement an electrical connection between the first electrical connection member 212 and the first connector 2321.

[0174] The first sub mini-LED lighting panel 2303 may further include a second connector 2322, which may be connected in series with the first connector 2321. The second sub mini-LED lighting panel 2304 may include a third connector 2323. For example, the second connector 2322 of the first sub mini-LED lighting panel 2303 may be electrically connected to the third connector 2323 of the second sub mini-LED lighting panel 2304 via the second electrical connection member 213. An electrical signal from the driving module 211 may be input to the driving unit 233 of the second sub mini-LED lighting panel 2304 via the first electrical connection member 212, the first connector 2321, the second connector 2322, the second electrical connection member 213, and the third connector 2323 to drive the plurality of second light-emitting units of the second sub mini-LED lighting panel 2304. As described above, the first sub-mini-LED lighting panel 2303 and the second sub-mini-LED lighting panel 2304 can be connected in series. As shown in FIG. 11 , the second electrical connection member 213 can be located between the backplane 210 and the flat panel 220.

[0175] In the example, the electronic device displays a target image. A second image area of ​​the target image corresponds to the second sub-mini-LED lighting panel 2304. Image formation of the second image area is performed by the second sub-mini-LED lighting panel 2304. The driving module 211 may input a second control signal to the driving unit 233 of the second sub-mini-LED lighting panel 2304 via the first connector 2321. The second control signal may indicate a pixel value of a pixel in the second image area. The driving unit 233 of the second sub-mini-LED lighting panel 2304 may control a brightness state of the light-emitting unit 231 of the second sub-mini-LED lighting panel 2304 based on the pixel value of the pixel in the second image area.

[0176] With reference to the above description, the first control signal and the second control signal that may be output by the driving module 211 may both pass through the first connector 2321. Optionally, the first control signal may carry a first lighting panel identifier. The first lighting panel identifier may be an identifier of the first sub-mini-LED lighting panel 2303. The second control signal may carry a second lighting panel identifier. The second lighting panel identifier may be an identifier of the second sub-mini-LED lighting panel 2303. 2304 23. This can avoid confusion of control signals of different mini-LED lighting panels 230. After mounting the backplane 210, the flat panel 220, the first sub mini-LED lighting panel 2303, and the second sub mini-LED lighting panel 2304, an assembler or a robot arm can connect the second electrical connection member 213 between the second connector 2322 of the first sub mini-LED lighting panel 2303 and the third connector 2323 of the second sub mini-LED lighting panel 2304. The driving module 211 and the first sub mini-LED lighting panel 2303 are located on both sides of the backplane 210, respectively, and the driving module 211 and the second sub mini-LED lighting panel 2304 are located on both sides of the backplane 210, respectively. To facilitate assembly, the backplane 210 may include a through hole corresponding to the second connector 2322 and a through hole corresponding to the third connector 2323, as shown in FIG. 11. An assembler or a robot arm can implement an electrical connection between the second electrical connection member 213 and the second connector 2322 through a through hole corresponding to the second connector 2322. An assembler or a robot arm can implement an electrical connection between the second electrical connection member 213 and the third connector 2323 through a through hole corresponding to the third connector 2323.

[0177] In the example shown in FIG. 11, the through hole corresponding to the second connector 2322 may be the first backplane through hole 215, and the through hole corresponding to the third connector 2323 may be the second backplane through hole 216.

[0178] In other examples, the drive module 211 may be provided on the front side of the backplane 210 or on the back side of the flat panel 220, and the backplane 210 may not include the first backplane through-hole 215 and the second backplane through-hole 216 shown in FIG. 11.

[0179] Optionally, the screen assembly 200 may further include a third sub-mini-LED lighting panel 2307. The driving module 211 may input a signal to the third sub-mini-LED lighting panel 2307 via the first sub-mini-LED lighting panel 2303 or the second sub-mini-LED lighting panel 2304.

[0180] 12, the first sub mini-LED lighting panel 2303 may include a fourth connector 2324. The fourth connector 2324 may be electrically connected to the first connector 2321. The third sub mini-LED lighting panel 2307 may include a fifth connector 2325. The fourth connector 2324 of the first sub mini-LED lighting panel 2303 and the fifth connector 2325 of the third sub mini-LED lighting panel 2307 may be electrically connected via the third electrical connection member 219. In this case, the second sub mini-LED lighting panel 2304 may be connected in parallel with the third sub mini-LED lighting panel 2307. In other words, a signal from the driving module 211 may flow through the first sub mini-LED lighting panel 2303 such that the signal may be input to the second sub mini-LED lighting panel 2304 and the third sub mini-LED lighting panel 2307.

[0181] 13, the second sub mini-LED lighting panel 2303 may include a fourth connector 2324. The fourth connector 2324 may be electrically connected to the third connector 2323. The third sub mini-LED lighting panel 2307 may include a fifth connector 2325. The fourth connector 2324 of the second sub mini-LED lighting panel 2304 and the fifth connector 2325 of the third sub mini-LED lighting panel 2307 may be electrically connected via the third electrical connection member 219. In this case, the second sub mini-LED lighting panel 2304 may be connected in series with the third sub mini-LED lighting panel 2307. In other words, a signal from the driving module 211 may be input to the third sub mini-LED lighting panel 2307 via the second sub mini-LED lighting panel 2304.

[0182] FIG. 14 is a schematic diagram of the front structure of the backplane 210. As shown in FIG.

[0183] 11 and 14 , the backplane 210 may include an electrical connection member accommodating groove 214. The electrical connection member accommodating groove 214 may be located between the first backplane through-hole 215 and the second backplane through-hole 216. The electrical connection member accommodating groove 214 may be for accommodating the second electrical connection member 213. The recessed direction of the electrical connection member accommodating groove 214 may be perpendicular to the backplane 210, and the recessed direction may be a direction away from the flat panel 220 and the mini-LED lighting panel 230.

[0184] 11 and 14, the backplane 210 may include a drive unit receiving groove 218, and the drive unit receiving groove 218 may include: SubThe driving unit 233 of the mini-LED lighting panel 2300 may correspond to the driving unit 233. The driving unit accommodating groove 218 may be provided corresponding to or aligned with the driving unit 233. The concave direction of the driving unit accommodating groove 218 may be perpendicular to the backplane 210, and the concave direction may be a direction away from the flat panel 220 and the sub-mini-LED lighting panel 2300.

[0185] The drive unit accommodating groove 218 is Sub The driving unit 233 of the mini-LED lighting panel 2300 can be avoided, and the risk of collision between the backplane 210 and the driving unit 233 can be reduced. Furthermore, the bottom and side walls of the driving unit accommodating groove 218 can block and cover the driving unit 233, thereby providing mechanical protection for the driving unit 233. The driving unit 233 can be relatively sensitive to electromagnetic signal interference. The driving unit accommodating groove 218 can further provide an electromagnetic shielding function for the driving unit 233, so as to reduce the EMC risk of the driving unit 233.

[0186] One or more mechanical connection members may be provided on the front surface of the backplane 210. Fig. 15 is a schematic diagram of a backplane 210 structure provided with multiple mechanical connection members. Referring to Figs. 15 and 16, the flat panel 220 may be fixed to the front surface of the backplane 210 through the mechanical connection members. The mechanical connection members may be, for example, any one of double-sided adhesive 281, foam 282, and screws 286.

[0187] 15, the long strip pattern filled with a checkerboard pattern may be a schematic representation of double-sided adhesive 281. As shown in FIG 15, the double-sided adhesive 281 may be applied to the front surface of the backplane 210 in parallel spaced apart configuration.

[0188] 15, a rectangular pattern filled with a cross pattern is a schematic diagram of foam 282. As shown in FIG. 15, foam 282 can be attached to the front side of backplane 210, and foam 282 and double-sided adhesive 281 can be attached to different areas of backplane 210. In other words, the attachment area of ​​foam 282 on backplane 210 and the attachment area of ​​double-sided adhesive 281 on backplane 210 are different. Double-sided adhesive 281 The application areas of the foam 282 may not overlap. In other words, the foam 282 may be applied to an area of ​​the backplane 210 where the double-sided adhesive 281 is not applied. When the foam 282 and the double-sided adhesive 281 are applied to the same area, the thickness of the overlapped area between the foam 282 and the double-sided adhesive 281 is relatively thick, and the thickness of the non-overlapping area between the foam 282 and the double-sided adhesive 281 is relatively thin. This may affect the bonding stability between the flat panel 220 and the backplane 210.

[0189] The foam 282 can help absorb deformation. For example, when the backplane 210 deforms relatively obviously, the flat panel 220 may deform relatively slightly under the effect of the foam 282. As another example, when the electronic device 100 operates normally, the flat panel 220 may resonate due to sounds within the electronic device 100, and the foam 282 can absorb some of the resonance. This can reduce the amplitude of the flat panel 220.

[0190] As shown in FIG. 15 , the front surface of the backplane 210 may include a screw hole 287. As shown in FIG. 16 , a screw 286 that fits the screw hole 287 may be provided on the front surface of the flat panel 220. The flat panel 220 may include a flat panel through-hole that is provided corresponding to the screw hole 287. The screw cap of the screw 286 may be in contact with the front surface of the flat panel 220 (i.e., the side of the flat panel 220 away from the backplane 210). The rod portion of the screw 286 passes through the flat panel through-hole of the flat panel and fits into the screw hole 287 of the backplane 210 to fix the flat panel 220 to the backplane 210. The fixing principle of the screw 286 may be different from the fixing principle of the double-sided adhesive 281 and the foam 282. The use of the screw 286 can improve the connection stability between the backplane 210 and the flat panel 220.

[0191] Optionally, the backplane 210 may include a backplane protrusion, which may protrude toward the flat panel 220. The screw holes 287 may be provided in the backplane protrusion. At the backplane protrusion, the distance between the backplane 210 and the flat panel 220 is relatively short. This allows the length of the screws 286 to be short.

[0192] Optionally, the flat panel 220 may include a flat panel protrusion, which may protrude toward the backplane 210. The flat panel through-hole may be provided in the flat panel protrusion. With the flat panel protrusion, the distance between the flat panel 220 and the backplane 210 is relatively short. This allows the length of the screw 286 to be short.

[0193] When the backplane 210 includes a backplane protrusion, the backplane protrusion and the flat panel protrusion may protrude in opposite directions. Optionally, the end face of the backplane protrusion may contact the end face of the flat panel protrusion. In this way, the rod portion of the screw 286 can be hidden in the screw hole 287 and the flat panel through hole. In this case, the length of the screw 286 is relatively short. This can protect the screw 286 and further improve the connection stability of the screw 286.

[0194] As described above, the driving module 211 provided on the rear surface of the backplane 210 can be electrically connected to the sub mini-LED lighting panel 2300. The flat panel 220 may include a first flat panel through-hole and a second flat panel through-hole. The first flat panel through-hole corresponds to the connector 232 of the sub mini-LED lighting panel 2300. The second flat panel through-hole corresponds to the driving unit 233 of the sub mini-LED lighting panel 2300.

[0195] 16 , the flat panel 220 may include a first flat panel through-hole 225 corresponding to the connector 232 of the sub mini-LED lighting panel 2300. The first flat panel through-hole 225 may be provided corresponding to or aligned with the connector 232. The connector 232 may pass through the first flat panel through-hole 225. In other words, the connector 232 of the sub mini-LED lighting panel 2300 may be located on a side of the flat panel 220 away from the sub mini-LED lighting panel 2300.

[0196] 16 , the flat panel 220 may include a second flat panel through-hole 226 corresponding to the driving unit 233 of the sub mini-LED lighting panel 2300. The second flat panel through-hole 226 may be provided corresponding to or aligned with the driving unit 233. The driving unit 233 may pass through the second flat panel through-hole 226. In other words, the end of the driving unit 233 farthest from the sub mini-LED lighting panel 2300 may be located on the side of the flat panel 220 away from the sub mini-LED lighting panel 2300.

[0197] In another example, when the thickness of the driving module 211 is very thin, for example, the thickness of the driving module 211 is less than the thickness of the foam 282, the driving module 211 may be provided on the front side of the flat panel 220. Therefore, the backplane 210 may not include the first backplane through-hole 215 and the second backplane through-hole 216 shown in Figs. 10 and 11. Furthermore, the flat panel 220 may not include the first flat panel through-hole 225 and the second flat panel through-hole 226 shown in Fig. 16. The driving unit 233 may be located on a side of the flat panel 220 close to the sub mini-LED lighting panel 2300.

[0198] In conclusion, the embodiment of the present application provides a new electronic device, which has a new screen assembly 200. The screen assembly 200 may use a sub-mini-LED lighting panel 2300. The solution provided in the embodiment of the present application includes a special design of the sub-mini-LED lighting panel 2300, such as the driving circuit of the sub-mini-LED lighting panel 2300 and the structural design of the light mixing space 241 of the sub-mini-LED lighting panel 2300. The solution provided in the embodiment of the present application can enable the electronic device 100 or the screen assembly 200 to have excellent display effect, EMC performance, etc. In addition, the solution provided in the embodiment of the present application can further improve the lightness and thickness of the electronic device 100.

[0199] The above description is merely a specific implementation of the present application, and is not intended to limit the scope of protection of the present application. Any variations or replacements that a person skilled in the art can easily think of within the technical scope disclosed in this application should fall within the scope of protection of the present application. Therefore, the scope of protection of the present application should be subject to the scope of protection of the claims.

[0200] This application claims priority to Chinese Patent Application No. 202110449800.1, filed with the State Intellectual Property Office of the People's Republic of China on April 25, 2021, for the invention titled "ELECTRONIC DEVICE", the entire text of which is incorporated herein by reference.

Claims

1. 1. An electronic device comprising: The electronic device comprises a backplane, a flat panel, a mini-light-emitting diode (mini-LED) lighting panel, and a diffusion panel, the flat panel is located between the backplane and the mini-LED lighting panel, the mini-LED lighting panel is located between the flat panel and the diffusion panel, a light mixing space is formed between the mini-LED lighting panel and the diffusion panel, and light emitted by the mini-LED lighting panel is incident on the diffusion panel through the light mixing space, and the electronic device further comprises a first electrical connecting member, a second electrical connecting member, and a driving module; the drive module has a first power port; the mini-LED lighting panel has a first mini-LED lighting panel group, the first mini-LED lighting panel group has a first sub mini-LED lighting panel and a second sub mini-LED lighting panel, the first sub mini-LED lighting panel has a first connector and a second connector, the first connector is electrically connected to the first power port through the first electrical connection member, the second sub mini-LED lighting panel has a third connector, the third connector is electrically connected to the second connector through the second electrical connection member; Electronic devices.

2. the first sub-mini-LED lighting panel or the second sub-mini-LED lighting panel further includes a fourth connector, and the electronic device further includes a third electrical connection member; the first mini-LED lighting panel group further includes a third sub mini-LED lighting panel, the third sub mini-LED lighting panel having a fifth connector, the fifth connector being electrically connected to the fourth connector through the third electrical connection member; The electronic device of claim 1 .

3. the electronic device further comprises a second mini-LED lighting panel group and a fourth electrical connection member, and the driving module further comprises a second power port; the second mini-LED lighting panel group is electrically connected to the second power port through the fourth electrical connection member, and the first power port is different from the second power port; 3. An electronic device according to claim 1 or 2.

4. The backplane has an electrical connection member accommodating groove, the electrical connection member accommodating groove is provided corresponding to the second electrical connection member, the electrical connection member accommodating groove is recessed in a direction away from the mini-LED lighting panel, and the second electrical connection member is accommodated in the electrical connection member accommodating groove. An electronic device according to any one of claims 1 to 3.

5. The driving module is placed on a side of the backplane away from the first sub mini-LED lighting panel, the backplane has a first backplane through hole corresponding to the first connector, and the first electrical connection member or the first connector passes through the first backplane through hole. An electronic device according to any one of the preceding claims.

6. the driving module is located on a side of the flat panel away from the first sub mini-LED lighting panel, the flat panel has a first flat panel through hole corresponding to the first connector, and the first connector passes through the first flat panel through hole; An electronic device according to any one of the preceding claims.

7. The first sub mini-LED lighting panel comprises: a light-emitting unit group having m first light-emitting units, where m is an integer of 1 or more; a driving unit electrically connected to the first connector, the driving unit having a driving port and a public electrical signal port corresponding to the light-emitting unit group, one end of each first light-emitting unit in the light-emitting unit group being electrically connected to the public electrical signal port, and the other end of each first light-emitting unit in the light-emitting unit group being electrically connected to the driving port; having An electronic device according to any one of the preceding claims.

8. the flat panel has a second flat panel through hole, the second flat panel through hole is provided corresponding to the driving unit, and the driving unit passes through the second flat panel through hole; 8. The electronic device of claim 7.

9. The backplane has a driving unit accommodating groove, the driving unit accommodating groove is provided corresponding to the driving unit, the driving unit accommodating groove is recessed in a direction away from the first sub mini-LED lighting panel, and the driving unit is accommodated in the driving unit accommodating groove; 9. An electronic device according to claim 7 or 8.

10. The first light emitting unit is disposed on a first lighting panel surface which is a surface of the first sub-mini-LED lighting panel close to the diffusion panel, and the drive unit is disposed on a second lighting panel surface of the first sub-mini-LED lighting panel which corresponds to a back surface of the first lighting panel surface, and the first sub-mini-LED lighting panel is A thermally conductive block provided in the drive unit; and a shielding can, The driving unit is placed in a shielded space of the shielding can, and the shielding can is in contact with the thermally conductive block. An electronic device according to any one of claims 7 to 9.

11. The first sub mini-LED lighting panel further comprises a heat conductive film; A portion of the thermally conductive film is attached to the shielding can, and another portion of the thermally conductive film is attached to the second lighting panel surface.

11. The electronic device of claim 10.

12. The thermally conductive film has a first portion, a second portion, and a third portion, the first portion is attached to an upper surface of the shielding can, the second portion is attached to a surface of the second lighting panel, the third portion is connected between the first portion and the second portion, and the third portion is attached to a side surface of the shielding can.

12. The electronic device of claim 11.

13. The electronic device further comprises a light-transmitting spacer, the light-transmitting spacer being located between the mini-LED lighting panel and the diffusion panel, and the light-transmitting spacer being attached to a surface of the mini-LED lighting panel close to the diffusion panel.

13. An electronic device according to any one of the preceding claims.

14. the light-transmitting spacer has a curved surface, the curved surface being provided on a side of the light-transmitting spacer that is closer to the diffusion panel; 14. The electronic device of claim 13.

15. The light-transmitting spacer has a size larger than the size of each of the light-emitting units of the mini-LED lighting panel and covers at least one light-emitting unit; 15. An electronic device according to claim 13 or 14.

16. the electronic device further comprises a diffusion panel support, the diffusion panel support being in contact with the diffusion panel, and a side of the diffusion panel support proximate to the mini-LED lighting panel being spaced apart from a side of the mini-LED lighting panel.

16. An electronic device according to any one of the preceding claims.

17. The diffusion panel support further includes a support protrusion, the support protrusion extending from a surface of the diffusion panel support that contacts the diffusion panel along a direction from a main body of the diffusion panel support toward the mini-LED lighting panel.

17. The electronic device of claim 16.

18. 1. An electronic device comprising: a backplane, a flat panel, a mini-light-emitting diode (mini-LED) lighting panel, and a diffusion panel, the flat panel being located between the backplane and the mini-LED lighting panel, the mini-LED lighting panel being located between the flat panel and the diffusion panel, a light mixing space being formed between the mini-LED lighting panel and the diffusion panel, and light emitted by the mini-LED lighting panel being incident on the diffusion panel through the light mixing space; The electronic device further comprises a light-transmitting spacer, the light-transmitting spacer being located between the mini-LED lighting panel and the diffusion panel, and the light-transmitting spacer being attached to the mini-LED lighting panel. Electronic devices.

19. the light-transmitting spacer has a curved surface, the curved surface being provided on a side of the light-transmitting spacer that is closer to the diffusion panel; 20. The electronic device of claim 18.

20. The light-transmitting spacer has a size larger than the size of each of the light-emitting units of the mini-LED lighting panel and covers at least one light-emitting unit; 20. An electronic device according to claim 18 or 19.

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