Display module and display apparatus

By introducing a second light source into the display module of the liquid crystal display for edge light compensation, the problem of low brightness at the rear edge of the splicing module is solved, and a more uniform brightness distribution and improved visual effect is achieved.

WO2025043650A1PCT designated stage expired Publication Date: 2025-03-06BOE TECHNOLOGY GROUP CO LTD +1
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Patent Information

Application Number
PCT/CN2023/116311
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Filing Date
2023-08-31
Publication Date
2025-03-06

AI Technical Summary

Technical Problem

After the combination of the splicing module of the LCD monitor, the edge brightness is lower than the center brightness, resulting in poor overall visual effect.

Method used

Design a display module, including a display panel, a housing, a backlight and a control panel. The backlight source is realized by the first and second light sources, the first light source is arranged on the back panel, the second light source is arranged on the edge of the display panel for light compensation, and an electrical connection with the control panel is realized through the mounting plate and the trace to drive the lighting of the second light source.

Benefits of technology

The edge of the display module is compensated by light through the second light source, which improves the edge brightness, so that there is no significant difference between the center brightness and the edge brightness, and significantly improves the overall visual effect of the display module.

✦ Generated by Eureka AI based on patent content.

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Abstract

A display module and a display apparatus. The display module comprises: a display panel (1), a housing (2), a backlight source (3), a control board (4) and a mounting board (5), wherein the backlight source (3) comprises a first light source (17) and a second light source (16), the first light source (17) being arranged on a back plate (7), and the second light source (16) being configured to compensate for light at the edge of the display panel (1); the control board (4) is configured to drive and turn on the display panel (1) or the first light source (17); and one end of the mounting board (5) is arranged on a middle frame (6) and is provided with the second light source (16), and the control board (4) is provided with a trace (19), the second light source (16) being electrically connected to the control board (4) by means of the trace (19). In the display module, by providing the second light source (16) to compensate for light at the edge of the display module, the edge brightness is increased, such that there is no significant difference between the central brightness and edge brightness of the display module, enabling the overall visual effect of the display module to be significantly improved.
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Description

Display module and display device Technical Field

[0001] The present disclosure relates to, but is not limited to, the field of display technology, and in particular to a display module and a display device. Background Art

[0002] A liquid crystal display (LCD) is a thin, flat-panel display device that uses electric current to stimulate liquid crystal molecules to create dots, lines, and surfaces, which, in conjunction with backlighting, form the display. Electronic devices are constantly evolving towards being lighter, thinner, shorter, and smaller, and the development of LCD technology perfectly aligns with this goal. Its advantages, including right-angle display, low power consumption, compact size, and zero radiation, ensure users enjoy an optimal visual environment.

[0003] With the development of the display industry, display users are more pursuing picture quality requirements such as human eye comfort, especially mid-to-high-end splicing products. Some LCD displays will adopt a combination of splicing modules. Especially in the direct-type design, there will be a problem that the brightness of the edge is lower than the brightness of the center. After multiple splicing modules are spliced ​​together, the overall visual effect is significantly different.

[0004] Summary of the Invention

[0005] The following is a summary of the subject matter described in detail herein. This summary is not intended to limit the scope of the claims.

[0006] The present disclosure provides a display module, including:

[0007] Display panel;

[0008] A housing comprising a middle frame and a back plate connected to each other;

[0009] a backlight source, the backlight source comprising a first light source and a second light source, the first light source being arranged on a back panel, and the second light source being arranged to perform light compensation on an edge of the display panel;

[0010] a control board, the control board being disposed on the housing and configured to drive and light up the display panel or the first light source;

[0011] A mounting plate, one end of which is arranged on the middle frame and is provided with the second light source, the other end of which is connected to the control board, and wiring is provided on the mounting plate, the second light source is electrically connected to the control board through the wiring, so that the control board drives the second light source to light up.

[0012] In some exemplary embodiments, the mounting board includes a main body and a circuit layer covering the main body, and the traces are arranged in the circuit layer;

[0013] The control board is provided with a connector, an end of the main body away from the second light source is plugged into the connector, and the wiring is electrically connected to the control board through the connector.

[0014] In some exemplary embodiments, the backlight source includes a film material and a diffuser plate stacked in a direction perpendicular to the display panel, and the film material is disposed on a side of the diffuser plate close to the display panel;

[0015] The inner wall of the middle frame includes a first supporting surface for supporting the diffusion plate, and the second light source is located on a side of the first supporting surface away from the display panel.

[0016] In some exemplary embodiments, the main body includes a light source mounting portion, and the second light source is bound to the light source mounting portion;

[0017] The inner wall of the middle frame is provided with a groove for accommodating the second light source, the light source mounting portion is arranged at the bottom of the groove, and the second light source is arranged to emit light from an end face away from the light source mounting portion.

[0018] In some exemplary embodiments, a first notch is provided on the inner wall of the middle frame, and the first notch is arranged to extend from the first supporting surface to a notch position of the groove.

[0019] In some exemplary embodiments, a light guide bar or support member is further included;

[0020] There are a plurality of the grooves and the first notches, the grooves and the first notches are arranged in one-to-one correspondence, and the plurality of grooves are arranged at intervals along the circumference of the middle frame;

[0021] The light guide bar is arranged between the first supporting surface and the diffuser plate, and the light guide bar is arranged in a plane parallel to the display panel and along the circumference of the middle frame;

[0022] The support member is arranged on the first support surface, and the support member is arranged to be integrally formed with the middle frame. There is one support member between two adjacent first notches, and the end surface of the support member facing the display panel abuts against the diffusion plate.

[0023] In some exemplary embodiments, the first notch is set to be an arc-shaped in a cross-section parallel to the plane of the display panel, the light emission angle of the second light source is set to a, and the angle between the inner side wall of the first notch and the direction perpendicular to the display panel is set to b, where b=a / 2.

[0024] In some exemplary embodiments, an inner sidewall of the first gap is at least partially covered by a reflective layer.

[0025] In some exemplary embodiments, a reflective sheet is further included, the reflective sheet at least covering the first supporting surface, and the reflective sheet is provided with a second notch corresponding to the first notch.

[0026] In some exemplary embodiments, a reflective sheet is further included;

[0027] The inner wall of the middle frame includes a first inner side surface, the first inner side surface extends from the first supporting surface to an end of the middle frame away from the display panel, and a positioning groove is provided on the first inner side surface;

[0028] The main body includes a light source mounting portion, the second light source is bound to the light source mounting portion, the light source mounting portion is located in the positioning groove, and the end surface of the light source mounting portion facing the second light source is flush with the first inner side surface;

[0029] The reflective sheet covers the first inner side surface and the end surface of the light source mounting portion close to the second light source;

[0030] An opening is provided on the reflective sheet, and the second light source is arranged corresponding to the opening. The second light source includes a first side wall perpendicular to the light source mounting portion, and the second light source is arranged to emit light from the first side wall.

[0031] In some exemplary embodiments, the inner side wall of the opening includes a first opening wall close to the display panel, the minimum distance between the second light source and the first opening wall is set to c, the thickness of the reflective sheet is set to d, and the light-emitting angle of the second light source is α, wherein tanα=c / 2d, 0.5mm≤c≤0.8mm.

[0032] In some exemplary embodiments, a plurality of the second light sources are provided, and the plurality of second light sources are spaced apart along the circumference of the middle frame on a plane parallel to the display panel.

[0033] In some exemplary embodiments, in a direction parallel to the display panel, a minimum distance between the second light source and an edge of a display area of ​​the display panel is set to a first distance, and the first distance is set to 5-10 mm.

[0034] In some exemplary embodiments, the distance between adjacent second light sources is set to a second distance, the distance between the second light source and the surface of the diffuser plate away from the display panel is set to a third distance, and the ratio of the third distance to the second distance is set to be greater than or equal to 0.27.

[0035] In some exemplary embodiments, there are multiple second light sources, and the multiple second light sources include a first compensation lamp and a plurality of second compensation lamps arranged alternately in the circumferential direction of the middle frame. There are multiple first compensation lamps and multiple second compensation lamps, and the first compensation lamps and the second compensation lamps are arranged to be spaced apart in a direction perpendicular to the display panel.

[0036] In some exemplary embodiments, the housing further includes a front frame and a limiting member, the front frame and the middle frame are connected, and the front frame and the middle frame form an embedded groove;

[0037] The display panel and the film material are stacked, the edges of the display panel and the edges of the film material are inserted into the embedding groove, and the limiting member is arranged in the embedding groove and located on a side of the display panel away from the film material.

[0038] In some exemplary embodiments, a light board is further included, wherein the light board is disposed on the backboard, the first light source is arranged on the light board, and the light board constitutes the control board.

[0039] In some exemplary embodiments, the invention further includes a first circuit board, the first circuit board being electrically connected to the display panel, the first circuit board being configured to drive and light up the display panel, and the first circuit board being configured as a control board;

[0040] The housing further includes an outer plate, which is arranged on the periphery of the middle frame and connected to the back plate, and the outer plate and the middle frame form a mounting cavity;

[0041] The back plate includes a side plate and a bottom plate connected to each other. The side plate is arranged in the installation cavity. The side plate is connected to the middle frame through screws. The first circuit board is connected to the side plate.

[0042] In some exemplary embodiments, the side plate is provided with a first through hole, the middle frame is provided with a second through hole, and the mounting plate passes through the first through hole and the second through hole.

[0043] In some exemplary embodiments, the second light source is configured as a Mini LED.

[0044] In some exemplary embodiments, the main body is configured as a flexible insulating film.

[0045] In some exemplary embodiments, the main body also includes a main body middle part and a main body connecting part, one end of the main body middle part is connected to the light source mounting part, and the other end is connected to the main body connecting part, the main body middle part is at least partially arranged on the inner wall of the middle frame, and the main body connecting part and the connector are plugged in.

[0046] In some exemplary embodiments, there are multiple light source mounting portions, and the multiple connecting portions are all connected to the middle portion of the main body. The multiple second light sources on one mounting board are connected in parallel or in series through the wiring.

[0047] In some exemplary embodiments, the backlight source further includes diffuse reflective foam;

[0048] The middle frame is provided with a second supporting surface for supporting the display panel, and a connecting surface connecting the first supporting surface and the second supporting surface;

[0049] The diffuse reflection foam is bonded to the connection surface.

[0050] An embodiment of the present disclosure provides a display device including the above-mentioned display module.

[0051] Still other aspects will become apparent upon reading and understanding the accompanying drawings and detailed description.

[0052] Summary of the Figures

[0053] The accompanying drawings are used to provide an understanding of the technical solution of the present disclosure and constitute a part of the specification. Together with the embodiments of the present disclosure, they are used to explain the technical solution of the present disclosure and do not constitute a limitation to the technical solution of the present disclosure.

[0054] FIG1 is a schematic diagram of a display module according to an embodiment of the present disclosure;

[0055] FIG2 is a schematic diagram of the mounting plate in FIG1 ;

[0056] FIG3 is a partial enlarged schematic diagram of point B in FIG1 ;

[0057] FIG4 is a partial enlarged schematic diagram of point A in FIG1 ;

[0058] FIG5 is a partial schematic diagram of the middle frame in FIG1 ;

[0059] FIG6 is a partial schematic diagram of another display module of this exemplary embodiment;

[0060] FIG7 is a schematic diagram of the CC section in FIG4 ;

[0061] FIG8 is a partial enlarged schematic diagram of point D in FIG7;

[0062] FIG9 is a schematic diagram of a main body of an exemplary embodiment of the present disclosure;

[0063] FIG10 is a graph showing the edge brightness test of the display module;

[0064] FIG11 is another schematic diagram of a middle block of an exemplary embodiment of the present disclosure;

[0065] FIG12 is a schematic diagram of another display module according to an exemplary embodiment of the present disclosure;

[0066] FIG13 is a partial enlarged schematic diagram of point E in FIG12;

[0067] FIG14 is a partial enlarged schematic diagram of point F in FIG12;

[0068] FIG15 is a schematic diagram of the main body of a mounting plate according to an exemplary embodiment of the present disclosure;

[0069] FIG16 is a partial schematic diagram of another display module according to an exemplary embodiment of the present disclosure;

[0070] FIG17 is a schematic diagram of the middle frame in FIG16 ;

[0071] FIG18 is a schematic diagram of a second light source according to an exemplary embodiment of the present disclosure;

[0072] FIG19 is a partial schematic diagram of another display module according to an exemplary embodiment of the present disclosure;

[0073] FIG. 20 is a partial schematic diagram of another display module according to an exemplary embodiment of the present disclosure.

[0074] Explanation of the accompanying drawings: 1-display panel; 2-housing; 3-backlight source; 4-control board; 5-mounting plate; 6-middle frame 7-back plate; 8-side plate; 9-bottom plate; 10-first opening; 11-second opening; 12-inner wall; 13-first cavity; 14-membrane material; 15-diffuser plate; 16-second light source; 17-first light source; 18-reflector; 19-wiring; 20-main body; 21-circuit layer; 22-light source mounting portion; 23-middle portion of the main body; 24-lateral extension portion; 25-longitudinal extension portion; 26-main body connecting portion; 27-positive wiring; 28-negative wiring; 29-first groove; 30-right-angle portion; 31-second groove; 32-lamp board; 33-connector; 101-bonding adhesive; 34 - Membrane material; 35 - Diffuser plate; 36 - First gap; 37 - Light guide strip; 38 - Diffuse reflective foam; 39 - First reflector; 40 - Groove; 41 - Light emitting surface; 42 - First notch; 43 - Second support surface; 44 - Connecting surface; 45 - First support surface; 46 - Second notch; 47 - First groove bottom; 48 - Support member; 49 - First inner surface; 50 - Reflective layer; 51 - Middle frame fitting portion; 52 - Light board fitting portion; 53 - Connecting slot; 54 - External panel; 55 - Mounting cavity;56 - first circuit board; 57 - curved connector; 58 - second through hole; 59 - first through hole; 60 - reinforcement plate; 61 - opening; 62 - positioning slot; 63 - first opening wall; 64 - first side wall; 65 - front frame; 66 - embedding slot; 67 - stopper; 68 - first compensation lamp; 69 - second compensation lamp.

[0075] Details

[0076] In order to make the purpose, technical solutions and advantages of the present disclosure clearer, the embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings. Note that the embodiments can be implemented in a variety of different forms. A person of ordinary skill in the art can easily understand the fact that the methods and contents can be transformed into various forms without departing from the purpose and scope of the present disclosure. Therefore, the present disclosure should not be interpreted as being limited to the contents described in the following embodiments. In the absence of conflict, the embodiments in the present disclosure and the features in the embodiments can be arbitrarily combined with each other.

[0077] The scales of the figures in this disclosure can be used as a reference for actual processes, but are not limited to this. For example, the width-to-length ratio of the channel, the thickness and spacing of each film layer, and the width and spacing of each signal line can be adjusted according to actual needs. The number of pixels in the display panel and the number of sub-pixels in each pixel are not limited to the numbers shown in the figures. The figures described in this disclosure are only structural schematics, and one embodiment of the present disclosure is not limited to the shapes or values ​​shown in the figures.

[0078] In this specification, ordinal numbers such as “first”, “second” and “third” are provided to avoid confusion among constituent elements, and are not intended to limit the number.

[0079] In this specification, for convenience, words and phrases indicating orientation or positional relationships, such as "middle," "upper," "lower," "front," "back," "vertical," "horizontal," "top," "bottom," "inside," and "outside," are used to illustrate the positional relationships of constituent elements with reference to the accompanying drawings. This is merely for the purpose of facilitating the description of this specification and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limiting the present disclosure. The positional relationships of constituent elements may be appropriately changed depending on the direction in which each constituent element is described. Therefore, the present disclosure is not limited to the words and phrases described in the specification and may be appropriately replaced according to the circumstances.

[0080] In this specification, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they can refer to fixed, removable, or integral connections; mechanical or electrical connections; direct connections, indirect connections through intermediaries, or internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this disclosure.

[0081] In this specification, "electrically connected" includes components connected together via an element having some electrical function. There are no particular limitations on the "element having some electrical function" as long as it enables the transfer of electrical signals between the connected components. Examples of "element having some electrical function" include not only electrodes and wiring, but also switching elements such as transistors, resistors, inductors, capacitors, and other components with various functions.

[0082] In this specification, "parallel" refers to a state where the angle formed by two straight lines is greater than -10° and less than 10°, and thus also includes a state where the angle is greater than -5° and less than 5°. Furthermore, "perpendicular" refers to a state where the angle formed by two straight lines is greater than 80° and less than 100°, and thus also includes a state where the angle is greater than 85° and less than 95°.

[0083] In this specification, the terms "film" and "layer" may be interchanged. For example, "conductive layer" may be replaced with "conductive film." Similarly, "insulating film" may be replaced with "insulating layer."

[0084] In this specification, triangles, rectangles, trapezoids, pentagons, or hexagons are not strictly defined. They may be approximate triangles, rectangles, trapezoids, pentagons, or hexagons, and may have some minor deformations due to tolerances, such as chamfers, rounded edges, and deformation. The term "approximately" in this disclosure does not strictly define the boundaries, but allows for values ​​within the range of process and measurement errors.

[0085] FIG1 is a schematic diagram of a display module according to an embodiment of the present disclosure, and FIG2 is a schematic diagram of the mounting plate in FIG1 . As shown in FIG1 and FIG2 , the display module of this embodiment may include a display panel 1, a housing 2, a backlight source 3, a control board 4, and a mounting plate 5. The housing 2 may include a middle frame 6 and a backplate 7 connected thereto, and the housing 2 may be used to support the display panel 1. The backlight source 3 may include two light sources: a first light source 17 and a second light source 16. The first light source 17 may be disposed on the backplate 7, and the second light source 16 may be used to compensate for light at the edges of the display panel 1. The control board 4 may be disposed on the housing 2 and may drive the display panel 1 or the first light source 17 to illuminate. One end of the mounting plate 5 may be disposed on the middle frame and may be provided with the second light source 16. The other end of the mounting plate 5 is connected to the control board 4. The mounting plate 5 may be provided with wiring 19, and the second light source 16 may be electrically connected to the control board 4 via the wiring 19, allowing the control board 4 to drive the second light source 16 to illuminate. Therefore, the display module of this example, by providing the second light source 16, performs light compensation on the edge of the display module and improves the edge brightness, so that there is no obvious difference between the central brightness and the edge brightness of the display module, and the overall visual effect of the display module can be significantly improved.

[0086] In some exemplary embodiments, as shown in Figures 1 and 2, the middle frame 6 may be a rectangular ring-shaped structure with two open ends. The middle frame 6 forms two openings at both ends in a direction perpendicular to the display panel 1. One opening may be a first opening 10 and the other opening may be a second opening 11. The display panel 1 may be mounted at the first opening 10 and bonded to the middle frame 6. The back plate 7 may be disposed at the second opening 12 and connected to the middle frame 6 via screws (not shown). Thus, the display panel 1 blocks the first opening 10, and the back plate 7 blocks the second opening 11, so that the display panel 1, the middle frame 6, and the back plate 7 can collectively enclose a first cavity 13. The surface of the middle frame 6 facing the first cavity 13 constitutes the inner wall 12 of the middle frame 6, and the surface of the middle frame away from the first cavity 13 constitutes the outer wall of the middle frame 6.

[0087] FIG3 is a partially enlarged schematic diagram of point B in FIG1 . In some exemplary embodiments, as shown in FIG1 and FIG3 , the back panel 7 may include a bottom panel 9 and a side panel 8 connected to each other. The side panel 8 may be located at the circumferential edge of the bottom panel 9, with one end of the side panel 8 connected to the edge of the bottom panel 9 and the other end of the side panel 8 extending toward the display panel 1. The end of the middle frame 6 facing away from the display panel 1 abuts against the bottom panel 9. The side panel 8 is located on the side of the middle frame 6 facing away from the first cavity 13 and is connected to the middle frame 6 via screws (not shown). In some exemplary embodiments, a positioning structure may be provided between the side panel 8 and the middle frame 6. The positioning structure may include a right-angled portion 30 provided on the side panel 8 and a first groove 29 provided on the middle frame 6. The right-angled portion 30 is located at the end of the side panel 8 facing away from the bottom panel 9. The right-angled portion 30 may be right-angled. The outer wall of the middle frame 6 is provided with the first groove 29. A portion of the right-angled portion 30 is inserted into the first groove 29 and abuts against the bottom of the first groove 29.

[0088] In some exemplary embodiments, as shown in Figures 1 and 3, the display module further includes a light board 32, which can be mounted on the bottom plate 9 of the back plate 7. At the same time, the bottom plate 9 is provided with a second groove 31, which is recessed toward the side away from the display panel 1. The light board 32 is fixed in the second groove 31 to facilitate installation of the light board 32. There can be multiple first light sources 17, all of which are mounted on the side of the light board 32 facing away from the bottom plate 9. The light board 32 can drive and illuminate the first light sources 17. In addition, the light board 32 can also serve as the control board 4, which can drive and illuminate the second light sources 16. The light board 32 is provided with a reflective sheet 18 on the surface facing away from the bottom plate 9, which can reflect light from the first light source 17 toward the display panel 1 to a certain extent.

[0089] FIG4 is a partial enlarged schematic diagram of point A in FIG1 . As shown in FIG1 and FIG4 , in addition to the first light source 17 and the second light source 16 described above, the backlight source 3 may further include a film 14, a diffuser plate 15, and a light guide bar 37. The film 14 and the diffuser plate 15 may both be parallel to the display panel 1 and stacked in a direction perpendicular to the display panel 1. The film 14 is located on the side of the diffuser plate 15 facing the display panel 1. The film 14 and the display panel 1 are spaced apart to form a first gap 36. The light guide bar 37 is strip-shaped and may be arranged in a ring shape along the circumference of the middle frame 6. The light guide bar 37 is located on the surface of the diffuser plate 15 away from the display panel 1 and is arranged corresponding to the edge of the diffuser plate 15. The material of the light guide bar 37 may be transparent or hazy plastic, but is not limited thereto. The material of the light guide bar 37 may be adjusted according to the ambient brightness.

[0090] FIG5 is a partial schematic diagram of the middle frame in FIG1 . In some exemplary embodiments, as shown in FIG1 , FIG4 , and FIG5 , the display panel 1 has a display area 1B and a border area 1A. The surface of the middle frame 6 facing the display panel 1 has a second support surface 43 . The second support surface 43 is parallel to the display panel 1 and can support the border area 1A of the display panel 1. The second support surface 43 can be provided with adhesive 101 and can be bonded to the display panel 1 via the adhesive 101. The inner wall 12 of the middle frame 6 has a first support surface 45 , a connecting surface 44 , and a first inner side surface 49 . The connecting surface 44 , the first support surface 45 , and the first inner side surface 49 are sequentially connected in a direction perpendicular to the display panel 1 . The first support surface 45 can be parallel to the display panel 1 and can support the diffuser 15 . The connecting surface 44 can be perpendicular to the display panel 1 and connect the first support surface 45 and the second support surface 43 . The connecting surface 44 is not limited to being perpendicular to the display panel 1 and can, for example, be arranged at an angle relative to the display panel 1 . The first inner side surface 49 extends from a side of the first supporting surface 45 away from the connecting surface 44 in a direction away from the display panel 1 and extends all the way to the second opening 11 .

[0091] In some exemplary embodiments, as shown in Figures 1, 4, and 5, the inner wall 12 of the middle frame 6 may have a plurality of grooves 40 on the first inner side 49 for accommodating the second light source 16. The grooves 40 may be evenly spaced along the circumference of the middle frame 6. For example, in Figure 5, the middle frame 6 at least partially extends along a first direction, which is a direction parallel to the display panel 1. The grooves 40 may be evenly spaced along the first direction. The grooves 40 may be rectangular in cross-section parallel to the display panel 1. The grooves 40 are open on the side facing the first cavity 13, with the opening of the groove 40 proximal to the display panel 1. The bottom of the groove 40 is the wall of the groove 40 facing away from the display panel 1, i.e., the first bottom 47, which is parallel to the display panel 1. The grooves 40 may have the same shape and dimensions, but are not limited thereto. For example, the shape and dimensions of each groove 40 may be different. The grooves 40 can be used to position the mounting plate 5, facilitating assembly and improving installation efficiency.

[0092] In some exemplary embodiments, as shown in Figures 1, 4, and 5, the inner wall 12 of the middle frame 6 may be provided with a first notch 42. The first notch 42 may be arranged at a notch position extending from the first support surface 45 to the groove 40, thereby reducing the obstruction of light from the second light source 16 to the display panel 1 by the inner wall 12 of the middle frame 6. A plurality of grooves 40 and first notches 42 may be provided, and each groove 40 and first notch 42 may be provided in a one-to-one correspondence, such that the first notches 42 are evenly spaced along the circumference of the middle frame 6. The cross-section of the first notch 42 in a plane parallel to the display panel 1 may be arc-shaped, but is not limited thereto. For example, the cross-section of the first notch 42 in a plane parallel to the display panel 1 may be rectangular. The outer structure and dimensions of the multiple first notches 42 may be identical, but is not limited thereto. For example, the outer structure and dimensions of each first notch 42 may be different. On the first supporting surface 45, the minimum distance between adjacent first notches 42 can be about 3 mm. The portion of the first supporting surface 45 where the first notch 42 is not provided can be attached with a light guide strip 37. The light guide strip 37 supports the diffuser plate 15 and the film material 14. The light guide strip 37 can solve the problem of darkening of the periphery while increasing the supporting surface of the diffuser plate 15, and can effectively avoid other adverse problems caused by the sagging of the diffuser plate 15.

[0093] Figure 6 is a partial schematic diagram of another display module of this exemplary embodiment. In some exemplary embodiments, as shown in Figure 6, the inner side wall of the first notch is at least partially covered with a reflective layer 50. The reflective layer 50 can be a reflective sheet, silver reflective material or sprayed white ink. The provision of the reflective layer 50 can enhance the optical effect.

[0094] In some exemplary embodiments, as shown in Figures 1, 4, and 5, the reflective sheet 18 not only covers the light panel 32 but also covers the first support surface 45. The reflective sheet 18 located on the first support surface 45 is configured as a first reflective sheet 39. The first reflective sheet 39 covers the first support surface 45, and the light guide bar 37 abuts against the first reflective sheet 39. The first reflective sheet 39 has a plurality of second notches 46 corresponding to the plurality of first notches 42. The second notches 46 may have an arc-shaped cross-section along a plane parallel to the display panel 1.

[0095] In some exemplary embodiments, as shown in Figures 1 and 4, backlight source 3 may further include diffuse reflective foam 38. Diffuse reflective foam 38 may be bonded to and completely cover connection surface 44. The surface of diffuse reflective foam 38, distal from connection surface 44, faces the edges of diffuser plate 15 and film 14. Diffuse reflective foam 38 can prevent excessive brightness around the display module, which could cause a "bright edge" problem. This problem occurs when the display module's edges are too bright. Diffuse reflective foam 38 can be made of other materials with lower reflectivity, such as a material with a reflectivity of 50-70%.

[0096] FIG7 is a schematic cross-sectional view taken along line CC in FIG4 , and FIG8 is a partially enlarged schematic view taken along line D in FIG7 . In some exemplary embodiments, as shown in FIG1 , FIG4 , FIG6 , FIG7 , and FIG8 , the second light source 16 may be a Mini LED. The second light source 16 is mounted on the mounting plate 5 , and the surface of the second light source 16 away from the mounting plate 5 serves as the light emitting surface 41 . The second light source 16 emits light from the light emitting surface 41 . A plurality of second light sources 16 are provided, and each of the second light sources 16 corresponds to the aforementioned grooves 40 , such that the plurality of second light sources 16 are evenly spaced along the circumference of the middle frame 6 on a plane parallel to the display panel 1 . In a direction parallel to the display panel 1 , the minimum distance between the second light source 16 and the edge of the display area 1B of the display panel 1 (i.e., the boundary between the display area 1B and the frame area 1A) can be set to a first distance H1 , where the value of H1 can be 5 mm to 10 mm. Combined with the provision of the diffuse reflective foam 38 , this can further ensure a bright edge-free state while solving the problem of decreased peripheral brightness. In some exemplary embodiments, the distance between adjacent second light sources 16 can be set to a second distance H2, and the distance between the second light source 16 and the surface of the diffuser 15 away from the display panel 1 can be set to a third distance H3. The ratio of the third distance H3 to the second distance H2 can be greater than or equal to 0.27, ensuring that the mixing distance of the second light source 16 is sufficient to solve the lamp shadow problem. In this example, the value of the second distance H2 is 5mm. In order to satisfy H3 / H2≥0.27, the third distance H3 can be greater than or equal to 1.35mm. In some exemplary embodiments, the light emission angle of the second light source 16 can be set to a, and the inner side wall of the first notch 42 is tilted relative to the direction perpendicular to the display panel 1. The angle between the inner side wall of the first notch 42 and the direction perpendicular to the display panel 1 can be set to b, where b=a / 2, so that the luminous brightness of the second light source 16 can be effectively transmitted to the edge of the display area 1B of the display panel 1. In this example, the light-emitting angle of the second light source 16 is 120°, that is, a=120°, and the angle between the inner side wall of the first notch 42 and the direction perpendicular to the display panel 1 can be 60°, that is, b=60°. The values ​​of a and b are not limited to this. For example, the light-emitting angle of the second light source 16 is 100°, that is, a=100°, and the angle between the inner side wall of the first notch 42 and the direction perpendicular to the display panel 1 can be 50°, that is, b=50°.

[0097] FIG9 is a schematic diagram of a main body of an exemplary embodiment of the present disclosure. In some exemplary embodiments, as shown in FIG1 to FIG4, and FIG8 and FIG9, the mounting plate 5 may include a main body 20 and a circuit layer 21 covering the main body 20, and the trace 19 may be arranged on the circuit layer 21. The material of the main body 20 can be the same as the material of the insulating substrate in the flexible printed circuit board, and a flexible insulating film can be used. The main body 20 includes a light source mounting portion 22, a main body middle portion 23, and a main body connecting portion 26 connected in sequence. The light source mounting portion 22, the main body middle portion 23, and the main body connecting portion 26 are integral. The light source mounting portion 22 can be arranged at the bottom of the groove 40 (the first groove bottom 47) and bonded to the first groove bottom 47 with double-sided tape. The second light source 16 is attached to the light source mounting portion 22. There are multiple light source mounting portions 22, and the second light source 16 corresponds to the light source mounting portion 22 one by one. The middle portion 23 of the main body may include a connected transverse extension portion 24 and a longitudinal extension portion 25, the transverse extension portion 24 extends along a first direction, and multiple light source mounting portions 22 are connected to the transverse extension portion 24, and the end of the transverse extension portion 24 away from the light source mounting portion 22 is connected to the longitudinal extension portion 25, and the transverse extension portion 24 is bonded to the inner wall 12 of the middle frame 6 by double-sided tape; the longitudinal extension portion 25 is perpendicular to the transverse extension portion 24, and the end of the longitudinal extension portion 25 away from the transverse extension 24 extends to the light board 32, and the longitudinal extension portion 25 includes a connected middle frame bonding portion 51 and a light board bonding portion 52 in a direction perpendicular to the display panel 1, the middle frame bonding portion 51 can be bonded to the inner wall 12 of the middle frame 6 and bonded by double-sided tape, the middle frame bonding portion 51 is parallel to the display panel 1 and partially bonded to the surface of the light board 32 away from the back panel 7 and bonded by double-sided tape.

[0098] In some exemplary embodiments, as shown in Figures 1 to 4, and Figures 8 and 9, the circuit layer 21 can be a metal film covering the main body 20 and formed by etching through processes such as gluing, exposure, and development. As a result, the mounting board can be produced and formed by the processing method of a flexible printed circuit board. The traces 19 can be a single group or multiple groups of metal traces. In this example, the traces 19 connect the second light sources 16 bound to multiple light source mounting portions 22 in series, and form spaced positive wiring poles 27 and negative wiring poles 28 at the main body connection portion 26. However, not limited to this, the traces 19 can connect the second light sources 16 bound to multiple light source mounting portions 22 in parallel. The light board 32 has a driving circuit and a connector 33. The connector 33 may have a plug-in slot 52. The plug-in slot 52 may be provided with positive and negative poles. The main connecting portion 26 may be inserted into the plug-in slot 52. The positive and negative poles in the plug-in slot 52 may be aligned with the positive pole 27 and the negative pole 28 of the wiring to form an electrical connection, so that the light board 32 and the wiring 19 are electrically connected, so that the light board 32 can drive the second light source 16 to light up. The second light source 16 does not require a separate circuit board to be connected to the driving board, saving space and raw material costs. The circuit for the light board 32 to drive the first light source 17 and the circuit for the light board 32 to drive the second light source 16 are independent of each other, so that the first light source 17 and the second light source 16 can be driven by different currents when the light board 32 is powered, which can effectively avoid the problem of light flickering caused by driving delays. The driving current of the second light source 16 can be set according to the peripheral brightness attenuation trend of the display module.

[0099] In some exemplary embodiments, the light board 32 may be provided with multiple connectors 33, and the mounting plate 5 may be provided with multiple connectors 33, and the multiple mounting plates 5 may be connected one-to-one with the multiple connectors 33. However, this is not limited to this. For example, the light board 32 may have one connector 33, and the mounting plate 5 may have only one connector 33.

[0100] In some exemplary embodiments, as shown in Figures 1, 3, and 4, the light panel 32 can be driven to illuminate the first light source 17 and the second light source 16. Light emitted by the first light source 17 passes through the diffuser plate 15 and the film 14, evenly illuminating the display panel 1. A portion of the brightness generated by the second light source 16 is transmitted via the light guide bar 37 to the edges of the diffuser plate 15 and the diffuse reflective foam 38. The diffuse reflective foam 38 reduces the light transmitted by the light guide bar 37, thereby improving the brightness at the very edges of the display panel 1 and addressing the bright edge problem. Another portion of the brightness generated by the second light source 16 is directly transmitted to the diffuser plate 15 and the film 14, providing light compensation for the edges of the display panel 1. Figure 10 shows a graph of the edge brightness test of a display module. As shown in Figure 10, the y-axis represents relative brightness. S1 is the edge brightness curve for the display module in this example, and S2 is the edge brightness curve for a related display module. At any position on the abscissa, the relative brightness value corresponding to curve S1 is greater than the relative brightness value corresponding to curve S2, indicating a significant improvement in relative brightness, effectively addressing the issue of decreased brightness at the periphery of the display module.

[0101] FIG11 is a schematic diagram of another middle frame according to an exemplary embodiment of the present disclosure. In some exemplary embodiments, as shown in FIG11 , a support member 48 may be provided on the middle frame 6. The support member 48 may be disposed on the first support surface 45 and may be integrally formed with the middle frame 6. A support member 48 is provided between each two adjacent first notches 42. The end surface of the support member 48 away from the first support surface 45 may support the aforementioned diffuser plate, replacing the light guide bar.

[0102] In some exemplary embodiments, the second light source 16 can be driven to light up by other components. FIG12 is a schematic diagram of another display module of an exemplary embodiment of the present disclosure. FIG13 is a partially enlarged schematic diagram of point E in FIG12 . FIG14 is a partially enlarged schematic diagram of point F in FIG12 . As shown in FIG12 to FIG14 , the housing 2 further includes an outer panel 54. The outer panel 54 can be arranged on the periphery of the middle frame 6 and can be connected to the back panel 7. The outer panel 54 and the middle frame 6 can enclose a mounting cavity 55. The back panel 7 can include a connected side panel 8 and a bottom panel 9. The side panel 8 can be located at the circumferential edge of the bottom panel 9. One end of the side panel 8 is connected to the edge of the bottom panel 9. The other end of the side panel 8 extends toward the display panel 1. The side panel 8 can be arranged in the mounting cavity 55. The bottom panel 9 extends out of the mounting cavity 55. The side panel 8 is connected to the middle frame 6 by screws (not shown in the figure). One end of the outer panel 54 extends to the display panel 1 and wraps around a small portion of the edge of the display panel 1. The other end of the outer panel 54 extends to the side of the bottom panel 9 away from the display panel 1 and is connected to the bottom panel 9 via screws (not shown). In addition, a reinforcing plate 60 is provided within the mounting cavity 55. The reinforcing plate 60 can have a right-angled cross-section and is attached to the side of the outer panel 54 facing the middle frame 6 and connected to the outer panel 54, thereby enhancing the strength of the outer housing 2.

[0103] In some exemplary embodiments, as shown in Figures 12 to 14, the middle frame 8 supports the display panel 1, the film 14, and the diffuser 15. The inner wall 12 of the middle frame 6 is provided with a groove 40, and the groove 40 is provided with a second light source 16. The second light source 16 can compensate for the light at the edge of the display panel 1. The display panel 1 can be driven and illuminated by a first circuit board 56. The first circuit board 56 can be arranged in the mounting cavity 55. The first circuit board 56 is fixed to the side panel 8 of the back panel 7. The first circuit board 56 is located on the side of the side panel 8 facing away from the middle frame 6. The first circuit board 56 is connected to the display panel 1 via a flexible connector 57. The flexible connector 57 is bendable so that the flexible connector 57 is led out from the edge of the display panel 1 and can be bent and extended toward the back panel 7. The first circuit board 56 is also electrically connected to the display panel 1 via the flexible connector 57 to illuminate the display panel 1.

[0104] FIG15 is a schematic diagram of the main body of a mounting plate according to an exemplary embodiment of the present disclosure. In some exemplary embodiments, as shown in FIG12 through FIG15 , the second light source 16 is electrically connected to the first circuit board 56 via wiring on the mounting plate 5, allowing the first circuit board 56 to drive and illuminate the second light source 16. The wiring of the mounting plate 5 is arranged on the main body of the mounting plate 5. The main body of the mounting plate 5 includes a light source mounting portion 22 to which the second light source 16 is attached, as well as a main body middle portion 23 and a main body connecting portion 26. The end of the main body middle portion 23 away from the light source mounting portion 22 first extends along the inner wall 12 of the middle frame 6 toward the back panel 7, and then extends toward the first circuit board 56. The first circuit board 56 is provided with a connector 33 on the side facing the middle frame 6. The middle portion 23 of the main body extends to the side of the connector 33 away from the display panel 1. The connector 33 can be plugged into the main body connection portion 26 and form an electrical connection with the traces on the mounting plate 5, so that the first circuit board 56 and the traces 19 are electrically connected, so that the first circuit board 56 can drive the second light source 16 to light up. The second light source 16 does not need a separate circuit board to be connected to the first circuit board 56, saving space and raw material costs. The first circuit board 56 serves as the control board 4. The circuit for the first circuit board 56 to drive the display panel 1 and the circuit for the first circuit board 56 to drive the second light source 16 are independent of each other, which can effectively avoid the problem of light flickering caused by drive delay. The drive current of the second light source 16 can be set according to the peripheral brightness attenuation trend of the display module. In addition, in order to allow the middle portion 23 of the main body to extend to the first circuit board 56, a second through hole 58 is provided on the middle frame 6, and a first through hole 59 is provided on the side panel 8. The second through hole 58 is located at one end of the middle frame 6 close to the bottom plate 9. The first through hole 59 and the second through hole 58 are correspondingly arranged in a direction parallel to the display panel 1, and the middle portion 23 of the main body passes through the first through hole 59 and the second through hole 58 respectively.

[0105] In some exemplary embodiments, the first circuit board 56 may be provided with multiple connectors 33, and the mounting board 5 may be provided with multiple connectors 33, with the multiple mounting boards 5 being connected to the multiple connectors 33 in a one-to-one correspondence. However, this is not limiting. For example, the first circuit board 56 may have one connector 33, and the mounting board 5 may have only one connector 33.

[0106] In some exemplary embodiments, the second light source 16 may emit light from the side. FIG16 is a partial schematic diagram of another exemplary embodiment of the present disclosure, FIG17 is a schematic diagram of the middle frame in FIG16, and FIG18 is a schematic diagram of the second light source in an exemplary embodiment of the present disclosure. As shown in FIG16, FIG17 and FIG18, the middle frame 6 has a second support surface 43 for supporting the display panel 1, a first support surface 45 for supporting the light guide bar 37, the diffuser plate 15, and the film 14, and a first inner side surface 49 extending from the first support surface 45 to the end of the middle frame 6 away from the display panel 1. A positioning groove 62 is defined on the first inner side surface 49. The light source mounting portion 22 in the mounting plate 5 is disposed within the positioning groove 62. The second light source 16 is attached to the light source mounting portion 22. The thickness of the light source mounting portion 22 may be consistent with the depth of the positioning groove 62, so that the end surface of the light source mounting portion 22 facing the second light source 16 is flush with the first inner side surface 49. The first support surface 45, the first inner side surface 49, and the surface of the light source mounting portion 22 away from the middle frame 5 are all covered with a reflective sheet 18. An opening 61 is formed in the reflective sheet 18 to accommodate the second light source 16, so that the second light source 16 is arranged corresponding to the opening 61. The second light source 16 may include a first sidewall 64 perpendicular to the light source mounting portion 22. The second light source 16 may emit light from the first sidewall 64, which serves as the light emitting surface 41 of the second light source 16, thereby emitting light in a sideways direction. In some exemplary embodiments, the inner sidewall of the opening 61 includes a first opening wall 63 adjacent to the display panel 1. The minimum distance between the second light source 16 and the first opening wall 63 is set to c. The thickness of the reflective sheet 18 may be d, and the light emission angle of the second light source 16 is α, where tanα = c / 2d. In this example, 0.5mm≤c≤0.8mm is used to ensure assembly, component tolerances, and optical effects, but the present invention is not limited thereto. For example, c may be other values.

[0107] Figure 19 is a partial schematic diagram of another display module according to exemplary embodiments of the present disclosure. In some exemplary embodiments, as shown in Figure 19 , the housing 2 further includes a front frame 65 and a retaining member 66. The front frame 65 is located outside the middle frame 6 and connected to the middle frame 6. The front frame 65 can also be located on the side of the back panel 7 facing away from the middle frame 6 and connected to the side panel 8 of the back panel 7. The front frame 65 has a bent portion 68 at one end near the display panel 1. The bent portion 68 bends toward the display panel 1, forming an insertion groove 67 between the bent portion 68 and the second support surface 43 of the middle frame 6, with the notch facing the display panel 1. The edges of the display panel 1 and the film 14 are inserted into the insertion groove 67. The second support surface 43 supports the film 14, and the diffuser 15 is supported by the first support surface 45 of the middle frame 6. Furthermore, a retaining member 66 can be disposed within the insertion groove 67 and located on the side of the display panel 1 facing away from the film 14. The retaining member 66 can be made of foam to retain the display panel 1 and the film 14. Secondary light source 16 emits light from the side. Mounting plate 5 is attached to inner wall 12 of middle frame 6 using double-sided tape. Secondary light source 16 is secured to mounting plate 5. Light from secondary light source 16 penetrates the edges of diffuser plate 15 and film 9, addressing the reduced brightness around the display panel while enhancing the surrounding display quality.

[0108] FIG20 is a partial schematic diagram of another display module according to an exemplary embodiment of the present disclosure. In some exemplary embodiments, as shown in FIG20 , multiple second light sources 16 are provided, evenly arranged along the circumference of the middle frame 6. The multiple second light sources 16 may include first compensation lamps 68 and second compensation lamps 69, which are alternately arranged along the circumference of the middle frame 6. Multiple first compensation lamps 68 and second compensation lamps 69 are provided, and the first and second compensation lamps 68 and 69 are spaced apart in a direction perpendicular to the display panel. In this example, the middle frame 6 extends at least partially along a first direction parallel to the display panel and a second direction perpendicular to the display panel. The multiple second light sources 16 may include first compensation lamps 68 and second compensation lamps 69, which are alternately arranged in the first direction. Multiple first compensation lamps 68 and second compensation lamps 69 are provided, and the first and second compensation lamps 68 and 69 are spaced apart in a second direction. Thus, the multiple second light sources 16 are arranged in multiple rows, avoiding problems such as excessive line voltage drop and wiring difficulties caused by an excessive number of second light sources 16. Two or more rows of second light sources 16 can also provide improved display quality.

[0109] An embodiment of the present disclosure provides a display device including the above-mentioned display module.

[0110] The display module of the disclosed embodiment solves the problem of decreased peripheral brightness by providing a second light source and a mounting plate. The second light source can be positioned by the groove on the middle frame, which is convenient for the operator to assemble. The middle frame can not only support the display panel, etc., but also has a first notch. The first notch is designed in combination with the luminous angle of the second light source to further increase the luminous efficiency of the second light source. The second light source is bound to the mounting plate, and the mounting plate is electrically connected to the lamp board or the first circuit board through a connector, so that the lamp board or the first circuit board can drive the second light source to light up. The setting of the mounting plate and the connector can eliminate the need for a separate circuit board to drive the second power supply, saving driving costs, and the circuit for the lamp board or the first circuit board to drive the second light source is independent of other circuits, which can avoid the problem of flickering lights caused by driving delays.

[0111] Although the embodiments disclosed in this disclosure are as described above, the contents described are merely embodiments adopted to facilitate understanding of the disclosure and are not intended to limit the disclosure. Any person skilled in the art to which the disclosure belongs may make any modifications and changes in the form and details of the implementation without departing from the spirit and scope of the disclosure. However, the scope of patent protection of the present invention shall still be based on the scope defined by the appended claims.

Claims

1. A display module, wherein: include: Display panel; A shell, the shell comprising a middle frame and a back plate connected to each other; A backlight source, the backlight source comprising a first light source and a second light source, the first light source being arranged on a back plate, and the second light source being arranged to perform light compensation on an edge of a display panel; A control board, the control board is arranged on the housing, and the control board is configured to drive and light up the display panel or the first light source; A mounting plate, one end of which is arranged on the middle frame and is provided with the second light source, the other end of which is connected to the control board, a wiring is arranged on the mounting plate, and the second light source is electrically connected to the control board through the wiring, so that the control board drives the second light source to light up.

2. The display module according to claim 1, wherein: The mounting board comprises a main body and a circuit layer covering the main body, and the wiring is arranged in the circuit layer; The control board is provided with a connector, an end of the main body away from the second light source is plugged into the connector, and the wiring is electrically connected to the control board through the connector.

3. The display module according to claim 2, wherein: The backlight source comprises a film material and a diffusion plate stacked in a direction perpendicular to the display panel, wherein the film material is arranged on a side of the diffusion plate close to the display panel; The inner wall of the middle frame includes a first supporting surface for supporting the diffusion plate, and the second light source is located on a side of the first supporting surface away from the display panel.

4. The display module according to claim 3, wherein: The main body comprises a light source mounting portion, and the second light source is bound to the light source mounting portion; The inner wall of the middle frame is provided with a groove for accommodating the second light source, the light source mounting portion is arranged at the bottom of the groove, and the second light source is arranged to emit light from an end face away from the light source mounting portion.

5. The display module according to claim 4, wherein: The inner wall of the middle frame is provided with a first notch, and the first notch is arranged to extend from the first supporting surface to the notch position of the groove.

6. The display module according to claim 5, wherein: Also included are light guide strips or supports; There are a plurality of the grooves and the first notches, the grooves and the first notches are arranged in one-to-one correspondence, and the plurality of grooves are arranged at intervals along the circumference of the middle frame; The light guide bar is arranged to be located between the first supporting surface and the diffuser plate, and the light guide bar is arranged in a plane parallel to the display panel and along the circumference of the middle frame; The support member is arranged on the first support surface, and the support member is arranged to be integrally formed with the middle frame. One support member is arranged between two adjacent first notches, and the end surface of the support member facing the display panel abuts against the diffusion plate.

7. The display module according to claim 5, wherein: The first notch is set to be an arc in a cross section parallel to the plane of the display panel, the light emission angle of the second light source is set to a, and the angle between the inner wall of the first notch and the direction perpendicular to the display panel is set to b, where b=a / 2.

8. The display module according to claim 5, wherein: An inner sidewall of the first notch is at least partially covered by the reflective layer.

9. The display module according to claim 5, wherein: It also includes a reflective sheet, which at least covers the first supporting surface, and the reflective sheet is provided with a second notch corresponding to the first notch.

10. The display module according to claim 3, wherein: Also includes reflective sheets; The inner wall of the middle frame comprises a first inner side surface, the first inner side surface extends from the first supporting surface to an end of the middle frame away from the display panel, and a positioning groove is provided on the first inner side surface; The main body comprises a light source mounting portion, the second light source is bound to the light source mounting portion, the light source mounting portion is located in the positioning groove, and the end surface of the light source mounting portion facing the second light source is flush with the first inner side surface; The reflective sheet covers the first inner side surface and the end surface of the light source mounting portion close to the second light source; An opening is provided on the reflective sheet, the second light source is arranged corresponding to the opening, the second light source comprises a first side wall perpendicular to the light source mounting portion, and the second light source is arranged to emit light from the first side wall.

11. The display module according to claim 10, wherein: The inner side wall of the opening includes a first opening wall close to the display panel, the minimum distance between the second light source and the first opening wall is set to c, the thickness of the reflective sheet is set to d, and the light emitting angle of the second light source is α, wherein tanα=c / 2d, 0.5mm≤c≤0.8mm.

12. The display module according to claim 3, wherein: A plurality of the second light sources are provided, and the plurality of second light sources are arranged at intervals along the circumference of the middle frame on a plane parallel to the display panel.

13. The display module according to claim 12, wherein: In a direction parallel to the display panel, a minimum distance between the second light source and an edge of a display area of ​​the display panel is set to a first distance, and the first distance is set to 5-10 mm.

14. The display module according to claim 12, wherein: The distance between adjacent second light sources is set to a second distance, the distance between the second light source and a surface of the diffusion plate away from the display panel is set to a third distance, and the ratio of the third distance to the second distance is set to be greater than or equal to 0.

27.

15. The display module according to claim 3, wherein: There are multiple second light sources, including a first compensation lamp and multiple second compensation lamps alternately arranged in the circumferential direction of the middle frame, and there are multiple first compensation lamps and multiple second compensation lamps. The first compensation lamps and the second compensation lamps are arranged to be spaced apart in a direction perpendicular to the display panel.

16. The display module according to claim 3, wherein: The housing further comprises a front frame and a stopper, the front frame is connected to the middle frame, and the front frame and the middle frame form an embedding groove; The display panel and the film material are stacked, the edges of the display panel and the edges of the film material are both inserted into the embedding groove, and the limiting member is arranged in the embedding groove and located at a side of the display panel away from the film material.

17. The display module according to any one of claims 1 to 16, wherein: It also includes a light board, which is arranged on the back panel, and the first light source is arranged on the light board, and the light board constitutes the control board.

18. The display module according to any one of claims 1 to 16, wherein: It also includes a first circuit board, the first circuit board is electrically connected to the display panel, the first circuit board is configured to drive and light up the display panel, and the first circuit board is configured to be a control board; The housing further comprises an outer plate, which is arranged at the periphery of the middle frame and connected to the back plate, and the outer plate and the middle frame form a mounting cavity; The back plate includes a side plate and a bottom plate connected to each other. The side plate is arranged in the installation cavity. The side plate is connected to the middle frame by screws. The first circuit board is connected to the side plate.

19. The display module according to claim 18, wherein: The side plate is provided with a first through hole, the middle frame is provided with a second through hole, and the mounting plate passes through the first through hole and the second through hole.

20. The display module according to any one of claims 1 to 16, wherein: The second light source is configured as Mini LED.

21. The display module according to any one of claims 2 to 16, wherein: The main body is configured as a flexible insulating film.

22. The display module according to any one of claims 4 to 11, wherein: The main body also includes a main body middle part and a main body connecting part, one end of the main body middle part is connected to the light source mounting part, and the other end is connected to the main body connecting part, the main body middle part is at least partially arranged on the inner wall of the middle frame, and the main body connecting part is plugged into the connector.

23. The display module according to claim 22, wherein: There are multiple light source mounting parts, and the multiple connecting parts are all connected to the middle part of the main body. The multiple second light sources on one mounting board are connected in parallel or in series through the wiring.

24. The display module according to any one of claims 3 to 16, wherein: The backlight source also includes diffuse reflection foam; The middle frame is provided with a second supporting surface for supporting the display panel, and a connecting surface connecting the first supporting surface and the second supporting surface; The diffuse reflection foam is bonded to the connection surface.

25. A display device, wherein: Comprising a display module as described in any one of claims 1 to 24.

Citation Information

Patent Citations

  • Display device

    CN107340629A

  • Backlight module and liquid crystal display device

    CN109507822A

  • Backlight module, brightness regulation and control method thereof and display device

    CN115128871A

  • Direct type backlight module without dark space and display

    CN115903308A

  • Straight following formula backlight unit and straight following formula display

    CN205229633U