Display device

Abstract

A display device, comprising: a display screen; a COF assembly, wherein the COF assembly is electrically connected to the display screen; a circuit board, wherein the circuit board is electrically connected to the COF assembly; and a housing, wherein the housing is provided with an opening and an accommodating space that are communicated with each other. The display screen is arranged at the opening to seal the accommodating space; the circuit board is arranged in the accommodating space; a protruding portion is provided on the edge of the opening; the protruding portion protrudes in the direction moving away from the display screen to form a clearance space; and the COF assembly is at least partially arranged in the clearance space.

Description

Display device

[0001] The present application claims priority to the Chinese patent application No. 202420802147.1, filed on April 17, 2024, and entitled "Display device", the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] The present application relates to the technical field of display, in particular to a display device. BACKGROUND

[0003] In the prior art, the rear side structure of the display device is mainly a double-layer structure, which is divided into a back plate and a rear shell. The back plate is mainly used to fix electronic devices, and the rear shell is mainly used to cover the back plate to play a protective role. However, the double-layer structure has a high thickness, which is not conducive to the thinning of the display device. TECHNICAL PROBLEM

[0004] The COF (Chip On Film) traces are respectively connected with the display screen and the circuit board to provide signals for the display screen. In the prior art, the COF assembly is usually arranged at the periphery of the back plate, and then shielded by the rear shell. If the rear shell structure is reduced, the exposed COF assembly may cause unstable signals and safety hazards. TECHNICAL SOLUTION

[0005] The present application provides a display device, comprising:

[0006] a display screen;

[0007] a COF assembly, one end of the COF assembly being electrically connected with the display screen;

[0008] a circuit board, the other end of the COF assembly being electrically connected with the circuit board;

[0009] a shell, the shell having an opening and a containing space, the opening being in communication with the containing space, the display screen being arranged at the opening to close the containing space, the circuit board being arranged in the containing space, an edge of the opening being provided with a protruding portion, the protruding portion protruding away from the display screen to form an avoiding space, the avoiding space being in communication with the containing space, the COF assembly being at least partially arranged in the avoiding space. ADVANTAGEOUS EFFECTS

[0010] The display device provided by the embodiment of the present application comprises a display screen, a COF assembly, a circuit board and a shell. One end of the COF is connected with the display screen, and the other end is connected with the circuit board. The shell has an opening and a containing space. The opening is communicated with the containing space. The display screen is arranged at the opening to close the containing space. The circuit board and the COF assembly are arranged in the containing space. In the present application, only the shell is used to replace the double structure of the back plate and the rear shell in the prior art, which is beneficial to the thinning of the display device. The convex part is arranged at the edge of the opening of the shell to form the avoiding space to accommodate the COF assembly. The COF assembly can be connected with the circuit board in the interior of the shell to solve the problem of the exposure of the COF assembly. BRIEF DESCRIPTION OF DRAWINGS

[0011] Fig. 1 is a structural schematic view of the display device provided by the embodiment of the present application.

[0012] Fig. 2 is a sectional view of the display device provided by the embodiment of the present application.

[0013] Fig. 3 is an enlarged view of the local part A of Fig. 2.

[0014] Fig. 4 is a partial structure perspective view of the display device provided by the embodiment of the present application.

[0015] Embodiment of the present application

[0016] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0017] The embodiment of the present application provides a display device, which aims to solve the problems of high thickness of the display device and exposure of the COF assembly. The following will be specifically described with reference to the drawings.

[0018] Please refer to Fig. 1, Fig. 2 and Fig. 3. Fig. 1 is a structural schematic view of the display device provided by the embodiment of the present application. Fig. 2 is a sectional view of the display device provided by the embodiment of the present application. Fig. 3 is an enlarged view of the local part A of Fig. 2.

[0019] The present application provides a display device 100, which can be used in an electronic device, such as at least one of a television (TV), a tablet personal computer, an e-book reader, a desktop PC, a laptop PC, a netbook computer, a workstation, a server, a personal digital assistant, a portable multimedia player, a mobile medical machine, a camera, a game console, a digital camera, a car navigation device, an electronic billboard, an automatic teller machine, or a wearable device. In the following embodiments, the electronic device is a TV.

[0020] The display device 100 includes a display screen 101, a COF assembly 102, a circuit board 103, and a housing 104. One end of the COF assembly 102 is electrically connected to the display screen 101, and the other end is electrically connected to the circuit board 103. The housing 104 has an opening 1041 and a receiving space 1042, and the opening 1041 communicates with the receiving space 1042. The display screen 101 is arranged at the opening 1041 to close the receiving space 1042, the circuit board 103 and the COF assembly 102 are arranged in the receiving space 1042, and the edge of the opening 1041 of the housing 104 is provided with a protruding portion 1043 which protrudes away from the display screen 101 to form an avoiding space 1047 which communicates with the receiving space 1042, and the COF assembly 102 is at least partially arranged in the avoiding space 1047.

[0021] The display screen 101 can be attached to the shell 104 by foam tape. The display screen 101 can be a liquid crystal screen, for example, which includes a first substrate, a second substrate, and a liquid crystal layer. The first substrate and the second substrate are oppositely arranged and the liquid crystal layer is sandwiched therebetween. The first substrate and the second substrate can be glass substrates. The liquid crystal screen can also have a polarizer or a color filter. One end of the COF assembly 102 is electrically connected to the display screen 101, and the other end can be bent and electrically connected to the circuit board 103 through a flexible flat cable (FFC). The COF assembly 102 is mainly a chip on film (COF), and can also include a source PCB, which is a combination of a flexible circuit board and an integrated circuit. In other words, the COF assembly 102 is electrically connected to the circuit board 103 to receive data signals from the circuit board 103, and the COF assembly 102 is connected to the display screen 101 to transmit signals output from the circuit board 103 to drive the display on the display screen 101.

[0022] In order to be better sealed and more beautiful, the display device 100 in the embodiments of the present application further includes a shielding sheet or a decorative sheet, which is attached to the non-display area of the display screen 101 and the rear shell to seal the opening 1041 between the display screen 101 and the rear shell. The material of the shielding sheet can be PC (Polycarbonate, polycarbonate). The shielding sheet can also have patterns and / or special gloss, such as metallic gloss, sparkling gloss, to play a decorative role.

[0023] The material of the shell 104 can be metal or non-metal (such as plastic, etc.). If the material of the shell 104 is metal, it has high strength and gloss, which is beneficial to the fixation of other structures of the display device 100. The metal shell 104 can be formed by forging or stamping process; if the material of the shell 104 is plastic, it has the advantages of easy preparation and cost saving, etc., and can be formed by injection molding or extrusion process. The plastic can be a material with special properties, for example, the shell 104 can be made of PC (Polycarbonate, polycarbonate) or ABS (Acrylonitrile Butadiene Styrene, Acrylonitrile Butadiene Styrene) or other materials with high fire resistance rating.

[0024] When the material of the shell 104 is metal, the shell 104 is spaced apart from the circuit board 103 to avoid short circuit. Further, the length of the rivet column (denoted as the second rivet column 105) fixed on the shell 104 is set to be greater than the thickness of the shell 104, the second rivet column 105 is arranged through the shell 104 and abuts against the circuit board 103, so that a space is formed between the circuit board 103 and the shell 104.

[0025] The skilled in the art can understand that the circuit board 103 is arranged with a space from the shell 104, on one hand, the circuit board 103 can be cooled, and the shell 104 is not caused by the circuit board 103 directly pasted on the shell 104 to catch fire. On the other hand, the space between the circuit board 103 and the shell 104 can protect the circuit board 103, and when the shell 104 is impacted, the circuit board 103 can be prevented from being damaged.

[0026] Since the edge of the shell 104 is approximately pasted with the edge of the display screen 101, the display screen 101 is closed to the opening 1041, so that the COF assembly 102 connected with the display screen 101 cannot enter the inside of the containing space 1042, the edge of the shell 104 is provided with a protruding part 1043, the protruding part 1043 protrudes in a direction away from the display screen 101 to form an avoiding space 1047, the avoiding space 1047 is communicated with the containing space 1042, and the COF assembly 102 is at least partially arranged in the avoiding space 1047, so as to contain the COF assembly 102, so that the COF assembly 102 can be connected with the circuit board 103 in the inside of the shell 104, which can not only reduce the rear shell structure, but also can avoid the problem of the COF assembly 102 being exposed.

[0027] The protruding part 1043 is in a stepped shape, the COF assembly 102 can be pasted with the inner wall of the protruding part 1043, and the position of the COF assembly 102 can be limited, so as to avoid the COF assembly 102 being loose or falling off in the process of moving the display device 100, and the phenomenon of display failure occurs.

[0028] Please refer to FIG. 4, which is a partial structure perspective view of the display device provided by the embodiment of the present application. The display device 100 further comprises a first rivet column (not shown in the figure) and a loudspeaker 107, the first rivet column and the loudspeaker 107 are arranged in the containing space 1042, the first rivet column is connected with the shell 104, and the loudspeaker 107 is connected with the first rivet column. The first rivet column can be in a cylindrical structure, and the axis of the first rivet column can be perpendicular to the shell 104. In the process of assembling, a fastener such as a self-tapping screw can be used to pass through the first rivet column from the side of the shell 104 away from the display screen 101 along the axis of the first rivet column. Optionally, a plurality of reinforcing ribs can be arranged between the outer side of the first rivet column and the shell 104, and the plurality of reinforcing ribs are arranged at intervals around the axis of the first rivet column. By arranging the reinforcing ribs, the structural strength of the first rivet column can be improved, and the first rivet column is not easy to be deformed in the process of use.

[0029] The first rivet column is arranged in the mounting hole on the loudspeaker 107, so that the loudspeaker 107 is fixed on the first rivet column. By arranging a plurality of first rivet columns on the side of the shell 104 facing the display device 100, and connecting the first rivet columns with the loudspeaker 107, that is, the first rivet columns can support the loudspeaker 107, the first rivet columns can ensure the reliability of the connection between the loudspeaker 107 and the shell 104.

[0030] It is worth noting that for one loudspeaker 107, the number of first rivet columns can be one or more, for example, two or four. Taking the example of one loudspeaker 107 fixed with two first rivet columns, the loudspeaker 107 is connected with the two first rivet columns, which can fix the position of the first loudspeaker 107 in multiple dimensions, avoiding the rotation and displacement of the loudspeaker 107. In order to provide users with a better auditory experience, the number of loudspeakers 107 can be two or more, which is generally an even number. For example, the number of loudspeakers 107 is two, which is symmetrically arranged with the central axis of the shell 104, which can provide double-channel playback.

[0031] The shell 104 also has a mounting groove 1044, which is in communication with the accommodation space 1042, and the first rivet column and the loudspeaker 107 are arranged in the mounting groove 1044. It can be understood that the arrangement of the mounting groove 1044 makes the outer surface of the shell 104 protrude outward, thereby expanding the accommodation space 1042 to accommodate the loudspeaker 107, avoiding the loudspeaker 107 occupying the space of other structures. The shell 104 is provided with a sound hole 1045, which is in communication with the mounting groove 1044, and the sound hole 1045 is arranged corresponding to the loudspeaker 107, which is conducive to the propagation of the sound of the loudspeaker 107.

[0032] The display device 100 also includes a light bar 108, a first reflective sheet 109, and a second reflective sheet 110, which are arranged in the accommodation space 1042. The first reflective sheet 109 is arranged on the side of the circuit board 103 close to the display screen 101, the light bar 108 is connected with the shell 104, and the first reflective sheet 109 and the second reflective sheet 110 are symmetrical relative to the light bar 108.

[0033] The lamp strip 108 can be fixed on the shell 104 by screwing or heat-conducting glue. The lamp strip 108 is in a strip structure, and the number of the lamp strip 108 can be one or more. The plurality of lamp strips 108 can be arranged in an array. The lamp strip 108 includes a substrate 1081, a light emitting unit 1082, and a lamp support 1083. The light emitting unit 1082 and the lamp support 1083 are arranged on the substrate 1081. The substrate 1081 is connected with the shell 104, and the light emitting unit 1082 and the lamp support 1083 are directed toward the display screen 101. The substrate 1081 can provide circuit connection for the light emitting unit 1082. The light emitting unit 1082 can be a mini LED (mini Light Emitting Diode), a micro LED (micro Light Emitting Diode), or a common LED (Light Emitting Diode). The lamp support 1083 is arranged between the light emitting units 1082, and is configured to support part of the optical film material of the display device 100 to act on the light emitted by the light emitting unit 1082, so that the light irradiated on the display screen 101 is more uniform.

[0034] The first reflective sheet 109 and the second reflective sheet 110 are symmetrically arranged on both sides of the lamp strip 108, and are used to reflect the light emitted by the lamp strip 108 to propagate toward the display screen 101, so as to avoid invalid light away from the display screen 101, and have the effect of increasing the light intensity. The orthographic projection area of the first reflective sheet 109 and the second reflective sheet 110 on the display screen 101 is approximately equal to the area of the display screen 101, so as to reflect the light emitted by the lamp strip 108 to illuminate the display area of the display screen 101 as much as possible.

[0035] In order to avoid the occlusion of the light propagation caused by other structures of the display device 100, some structures such as the circuit board 103 are arranged on the side of the first reflective sheet 109 or / and the second reflective sheet 110 away from the display screen 101. For example, the circuit board 103 is arranged on the side of the first reflective sheet 109 away from the display screen 101, in other words, the first reflective sheet 109 is arranged on the side of the circuit board 103 close to the display screen 101.

[0036] In some embodiments, please continue to refer to FIG. 2, the display device 100 further comprises a first support 111, the first support 111 is arranged between the circuit board 103 and the shell 104, the first reflective sheet 109 can be attached on the first support 111 by double-sided tape, the first support 111 is configured to support the first reflective sheet 109, and the reliability of fixing the first reflective sheet 109 is improved. It can be understood that when the light bar 108 is fixed on the shell 104, the first reflective sheet 109 and the second reflective sheet 110 need to form a certain angle with the shell 104 to reflect the light generated by the light bar 108 to the display screen 101. Through the supporting action of the first support 111, the first reflective sheet 109 and the second reflective sheet 110 are symmetrically arranged relative to the light bar 108, and the light reflection effect of the light bar 108 is more balanced.

[0037] Similarly, the display device 100 can also comprise a second support, the second support is arranged between the shell 104 and the second reflective sheet 110, the second reflective sheet 110 can be attached on the second support by double-sided tape, the second support is configured to support the second reflective sheet 110, and the reliability of fixing the second reflective sheet 110 is improved. In other cases, the shell 104 is recessed towards the display screen 101, and the second reflective sheet 110 is directly attached on the shell 104 by double-sided tape to directly support the second reflective sheet 110, so that the first reflective sheet 109 and the second reflective sheet 110 are symmetrically arranged relative to the light bar 108.

[0038] Since the circuit board 103 generates heat, the first support 111 is a hollow support, the contact area of the hollow support with the circuit board 103 is reduced, which is beneficial to heat dissipation. The material of the first support 111 can be an insulating material, such as insulating plastic, which can avoid short circuit when in contact with the circuit board 103, and the insulating plastic is light in weight, which is beneficial to reduce the weight of the display device 100.

[0039] Please refer to FIG. 2, the shell 104 further comprises a power connection port 1046, the power connection port 1046 communicates with the accommodating space 1042. The display device 100 further comprises a third support 113 and a power cord 114, the third support 113 is arranged in the accommodating space 1042, the third support 113 corresponds to the power connection port 1046, and the power cord 114 is detachably connected with the third support 113 and arranged in the power connection port 1046. It can be understood that the power connection port 1046 on the shell 104 can facilitate the connection of the power cord 114, and the detachable connection of the power cord 114 with the third support 113 facilitates the maintenance of the power cord 114.

[0040] Please continue to refer to Fig. 2, the display device 100 further comprises a support seat 115 connected with the shell 104, the support seat 115 is configured to support the display device 100, so that the display screen 101 belongs to a vertical state, facilitating the user to watch. The material of the support seat 115 can be plastic, which can be prepared by injection molding process. The number of the support seat 115 can be one, two and more, which is locked on the edge of the outer shell 104 by screws.

[0041] In the display device 100 provided by the embodiment of the present application, the display device 100 comprises a display screen 101, a COF assembly 102, a circuit board 103 and a shell 104, one end of the COF is connected with the display screen 101, the other end is connected with the circuit board 103, the shell 104 has an opening 1041 and a containing space 1042, the opening 1041 communicates with the containing space 1042, the display screen 101 is arranged at the opening 1041 to close the containing space 1042, and the circuit board 103 is arranged in the containing space 1042. In the present application, only the shell 104 can replace the double structure of the back plate and the rear shell in the prior art, which is beneficial to the thinning of the display device 100, and the convex portion 1043 is arranged at the edge of the opening 1041 of the shell 104 to form an avoiding space 1047 to accommodate the COF assembly 102, so that the COF assembly 102 can be connected with the circuit board 103 inside the shell 104, thereby solving the problem of exposure of the COF assembly 102.

[0042] In the above embodiments, the description of each embodiment focuses on different aspects, and the parts not described in detail in a certain embodiment can be referred to the related description of other embodiments.

[0043] In the description of the present application, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more features.

[0044] The display device provided by the embodiment of the present application is described in detail. The principle and implementation manner of the present application are described by applying specific examples, and the above description of the embodiments is only used to help understanding the present application. Meanwhile, for those skilled in the art, according to the idea of the present application, the specific implementation manner and application range can be changed, and the above description of the present application should not be understood as a limitation.

Claims

1. A display device comprising: a display screen; a COF assembly, one end of the COF assembly being electrically connected to the display screen; a circuit board, the other end of the COF assembly being electrically connected to the circuit board; a housing, the housing having an opening and a receiving space, the opening being in communication with the receiving space, the display screen being arranged at the opening to close the receiving space, the circuit board being arranged in the receiving space, an edge of the opening being provided with a protrusion, the protrusion protruding towards a direction away from the display screen to form an avoiding space, the avoiding space being in communication with the receiving space, the COF assembly being at least partially arranged in the avoiding space.

2. The display device according to claim 1, wherein The protrusion is in a stepped shape.

3. The display device according to claim 1, wherein Further comprising a first rivet column and a loudspeaker, the first rivet column and the loudspeaker being arranged in the receiving space, the first rivet column being connected to the housing, the loudspeaker being connected to the first rivet column.

4. The display device according to claim 3, wherein Further comprising a reinforcing rib, the reinforcing rib being arranged on an outer side of the first rivet column, the reinforcing rib being arranged at intervals around an axis of the first rivet column.

5. The display device according to claim 3, wherein The number of the first rivet columns is two.

6. The display device according to claim 3, wherein The housing further has a mounting groove, the mounting groove being in communication with the receiving space, the first rivet column and the loudspeaker being arranged in the mounting groove.

7. The display device of claim 6, wherein, The housing is provided with a sound outlet hole, the sound outlet hole being in communication with the mounting groove.

8. The display device according to claim 1, wherein Further comprising a light bar, a first reflective sheet and a second reflective sheet, the light bar, the first reflective sheet and the second reflective sheet being arranged in the receiving space, the first reflective sheet being arranged on a side of the circuit board close to the display screen, the light bar being connected to the housing, the first reflective sheet and the second reflective sheet being symmetrical with respect to the light bar.

9. The display device of claim 8, wherein, The first reflective sheet and the second reflective sheet have an area of orthographic projection on the display screen which is approximately equal to an area of the display screen.

10. The display device of claim 8, wherein, Further comprising a first support, the first support being arranged between the circuit board and the housing, the first support being configured to support the first reflective sheet.

11. The display device of claim 10, wherein, The first support is a hollow support.

12. The display device of claim 10, wherein, The material of the first support is an insulating material.

13. The display device of claim 8, wherein, The light bar comprises a substrate, a light emitting unit and a light support, the light emitting unit and the light support being arranged on the substrate, the substrate being connected to the housing, the light emitting unit and the light support being towards the display screen.

14. The display device of claim 8, wherein, Further comprising a second support, the second support being arranged between the housing and the second reflective sheet, the second support being configured to support the second reflective sheet.

15. The display device of claim 8, wherein, The housing is recessed towards the display screen, the second reflective sheet being attached to the housing.

16. The display device of claim 1, wherein, The housing and the circuit board are arranged at intervals.

17. The display device of claim 1, wherein, The housing is further provided with a power connection port, the power connection port being in communication with the receiving space; the display device further comprises a third support and a power cord, the third support being arranged in the receiving space, the third support corresponding to the power connection port, the power cord being arranged in the power connection port and being detachably connected to the third support.

18. The display device of claim 1, wherein, Further comprising a support seat, the support seat being connected to the housing.

19. The display device of claim 1, wherein, Further comprising a foam adhesive, the display screen being attached to the housing by the foam adhesive.

20. The display device of claim 1, wherein, Further comprising a shielding sheet attached to a non-display area of the display screen and the housing to seal an opening between the display screen and the housing. Further comprising a shielding sheet attached to a non-display area of the display screen and the housing to seal an opening between the display screen and the housing.

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