Backlight module and display device

Abstract

The invention discloses a backlight module and a display device. The backlight module comprises a mounting frame and a plurality of glass-based light bars, and the mounting frame is provided with a mounting groove; the mounting groove is provided with a first side wall and a second side wall which are opposite; the plurality of glass-based light bars are spliced with one another and are arranged in the mounting grooves; each glass-based light bar extends from the first side wall to the second side wall; each glass-based light bar comprises a glass substrate, a conductive circuit layer and a light-emitting element, and the conductive circuit layer comprises a conductive layer arranged on the glass substrate and an insulating layer covering the conductive layer; the conductive layer extends to one end, close to the first side wall, of the glass substrate and is partially exposed to form a driving electrode; the light-emitting element is arranged on the insulating layer and is electrically connected with the conductive layer; a conductive connecting piece and a first driving circuit board connected with the conductive connecting piece are arranged on the first side wall; and the conductive connecting piece is electrically connected with the driving electrode. According to the invention, the utilization rate of the bare glass substrate can be improved, and meanwhile, the yield loss of the lamp panel can be reduced.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to a backlight module and a display device. Background Art

[0002] With the continuous expansion of the panel industry, the industry competition is becoming increasingly fierce. How to seize the cost advantage has become an important factor in maintaining a solid market position; therefore, improving the utilization rate of glass has become the key point to reduce costs. In related technologies, many glass substrates will have glass left over after the board is cut, which will result in a considerable amount of glass material waste, increase production costs, and reduce manufacturing efficiency. When there are a large number of lamp beads on the light board, such as mini LED (Mini Light Emitting Diode) or micro LED (Micro Light Emitting Diode), the yield of the light board is extremely high. If one lamp bead is abnormal, it will affect the entire light board, so this problem needs to be balanced. Summary of the invention

[0003] In view of this, the present application provides a backlight module and a display device to solve the problems of glass waste and low lamp board yield in the prior art.

[0004] In order to solve the above technical problems, the first technical solution provided in the present application is: to provide a backlight module, including: a mounting frame and a plurality of glass-based light strips, the mounting frame having a mounting groove; the mounting groove having a first side wall and a second side wall opposite to each other; a plurality of glass-based light strips are spliced ​​with each other and arranged in the mounting groove; each of the glass-based light strips extends from the first side wall to the second side wall; each of the glass-based light strips includes: a glass substrate, a conductive circuit layer and a light-emitting element, the conductive circuit layer includes a conductive layer arranged on the glass substrate and an insulating layer covering the conductive layer; the conductive layer extends to one end of the glass substrate close to the first side wall, and is partially exposed to form a driving electrode; the light-emitting element is arranged on the insulating layer and is electrically connected to the conductive layer; wherein a conductive connector and a first driving circuit board connected to the conductive connector are arranged on the first side wall; the conductive connector is electrically connected to the driving electrode.

[0005] In one embodiment, one end of the insulating layer close to the first side wall is spaced apart from one end of the glass substrate close to the first side wall, or one end of the insulating layer close to the first side wall has an opening, so that a portion of the conductive layer located on the glass substrate away from the bottom wall of the mounting groove is exposed to form the driving electrode; a first limiting portion is provided on a side of the first side wall away from the bottom wall, and the conductive connecting member extends to the surface of the first limiting portion close to the bottom wall of the mounting groove to form a contact electrode; one end of the glass-based light bar is clamped between the first limiting portion and the bottom wall of the mounting groove, and the driving electrode is in contact with the contact electrode.

[0006] In one embodiment, one end of the glass-based light bar is spaced apart from the first side wall, and an elastic member is disposed between one end of the glass-based light bar and the first side wall.

[0007] In one embodiment, the conductive connecting member is a metal sheet, and the contact electrode is bent to form a spring sheet.

[0008] In one embodiment, a second limiting portion is disposed on a side of the second side wall away from the bottom wall; the other end of the glass-based light strip is sandwiched between the second limiting portion and the bottom wall of the mounting groove.

[0009] In one embodiment, the second side wall includes a first sub-side wall and a second sub-side wall, the second sub-side wall is arranged on the inner wall surface of the first sub-side wall, and the second limiting portion is arranged on a side of the second sub-side wall away from the first sub-side wall; the distance between the first limiting portion and the first sub-side wall is greater than or equal to the length of the glass substrate.

[0010] In one embodiment, the first sub-side wall and the second sub-side wall are fixed by an adhesive layer or a magnetic attraction member.

[0011] In one embodiment, the driving electrode includes a first driving electrode and a second driving electrode, and each of the light-emitting elements is electrically connected to the first driving electrode and the second driving electrode; the conductive connector includes a first conductive connector and a second conductive connector; the first driving electrodes of multiple glass-based light bars are connected to the first electrode of the same first driving circuit board through the first conductive connector, and the second driving electrodes of multiple glass-based light bars are connected to the second electrode of the same first driving circuit board through the second conductive connector; or the multiple light-emitting elements of each glass-based light bar are arranged in a row, and the multiple light-emitting elements of multiple glass-based light bars are arranged in multiple rows and columns; the driving electrode is a first driving electrode, and each of the first driving electrodes is electrically connected to the light-emitting elements in the same column; multiple conductive connectors and multiple first driving circuit boards are provided on the first side wall; multiple first driving circuit boards, multiple conductive connectors and multiple driving electrodes are electrically connected one by one; the backlight module also includes a second driving circuit board, and the second driving circuit board includes multiple second driving electrodes, and each of the second driving electrodes is electrically connected to the light-emitting elements in the same row.

[0012] In one embodiment, the conductive layer includes a first driving electrode, a first driving circuit electrically connected to the first driving electrode, and a plurality of connecting electrode pairs; the connecting electrode pairs include a first connecting electrode and a second connecting electrode arranged at intervals, the light-emitting element is electrically connected to the first connecting electrode and the second connecting electrode, respectively, and the second connecting electrode extends to one side of the light-emitting element; the first connecting electrode is electrically connected to the first driving circuit; the backlight module also includes an encapsulation layer, the encapsulation layer covers a plurality of the glass-based light strips; the encapsulation layer has a plurality of openings, each of the openings partially exposing a second connecting electrode; there are a plurality of second driving circuit boards, each of the second driving circuit boards includes a second driving electrode and a second driving circuit electrically connected to the second driving electrode, and each of the second driving circuits is electrically connected to the second connecting electrode of the light-emitting element in the same row through the opening.

[0013] In order to solve the above technical problems, the second technical solution provided in the present application is: to provide a display device, comprising: a display panel and a backlight module, the backlight module is electrically connected to the display panel and is used to provide a light source for the display panel; wherein the backlight module is the backlight module described in any one of the above items.

[0014] Beneficial effects of the present application: Different from the prior art, the backlight module of the present application includes: a mounting frame and a plurality of glass-based light strips, the mounting frame having a mounting groove; the mounting groove having a first side wall and a second side wall opposite to each other; a plurality of glass-based light strips are spliced ​​with each other and arranged in the mounting groove; each glass-based light strip extends from the first side wall to the second side wall; each glass-based light strip includes: a glass substrate, a conductive circuit layer and a light-emitting element, the conductive circuit layer includes a conductive layer arranged on the glass substrate and an insulating layer covering the conductive layer; the conductive layer extends to one end of the glass substrate close to the first side wall, and is partially exposed to form a driving electrode; the light-emitting element is arranged on the insulating layer and electrically connected to the conductive layer; wherein a conductive connector and a first driving circuit board connected to the conductive connector are arranged on the first side wall; the conductive connector is electrically connected to the driving electrode. The mounting frame of the present application has the dual effects of installing glass-based light strips and conducting glass-based light strips. At the same time, multiple glass-based light strips can be spliced ​​to form a large-sized light board, which can not only improve the utilization rate of the bare glass substrate, but also reduce the yield loss of the light board through the above-mentioned circuit structure and mounting structure design; and the manufacturing process is simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technical workers in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 This is a schematic diagram of the first structure of a backlight module provided in an embodiment of the present application;

[0017] Figure 2 This is a second structural schematic diagram of a backlight module provided in an embodiment of the present application;

[0018] Figure 3 This is a third structural schematic diagram of a backlight module provided in an embodiment of the present application;

[0019] Figure 4 This application Figure 3 An enlarged schematic diagram of the structure of Part A is provided;

[0020] Figure 5 This is a fourth structural schematic diagram of a backlight module provided in an embodiment of the present application;

[0021] Figure 6 This application Figure 5 An enlarged schematic diagram of the structure of part B is provided;

[0022] Figure 7 This application Figure 5Another enlarged schematic diagram of the structure of part B is provided;

[0023] Figure 8 This is a process flow chart of installing a glass-based light bar provided in one embodiment of the present application;

[0024] Fig. 9 is a schematic diagram of a top view of the backlight module provided in the first embodiment of the present application;

[0025] Fig.10 This application Fig. 9 A schematic cross-sectional view of the structure along the CC direction is provided;

[0026] Fig.11 is a schematic diagram of a top view of the structure of a backlight module provided in the second embodiment of the present application;

[0027] Fig.12 is a side view structural diagram of a backlight module provided in the second embodiment of the present application;

[0028] Fig.13 is a schematic structural diagram of a display device provided by an embodiment of the present application;

[0029] Fig.14 It is a schematic diagram of cutting a bare glass substrate provided in this application.

[0030] Description of reference numerals:

[0031] 200, display device; 201, display panel; 2011, opposite substrate; 2012, array substrate; 2013, liquid crystal layer; 2014, liquid crystal molecules; 100, backlight module; 10, mounting frame; 101, mounting groove; 11, first side wall; 12, second side wall; 121, first sub-side wall; 122, second sub-side wall; 13, bottom wall; 14, conductive connector; 141, contact electrode; 15, first driving circuit board; 151, first electrode; 152, second electrode; 16, first limiter; 17, second limiter; 18, adhesive layer; 19, magnetic Suction piece; 20, glass-based light strip; 21, glass substrate; 22, light-emitting element; 23, conductive circuit layer; 231, conductive layer; 2310, driving electrode; 2311, first driving electrode; 2312, second driving electrode; 2313, first connecting electrode; 2314, second connecting electrode; 2315, first driving circuit; 232, insulating layer; 2320, opening; 30, elastic member; 40, encapsulation layer; 41, opening; 50, second driving circuit board; 51, second driving circuit; 300, bare glass substrate; 301, liquid crystal panel; 302, light board substrate. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technical workers in the field without making creative work are within the scope of protection of this application.

[0033] The terms "first", "second" and "first" in this application are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, the features defined as "first" and "second" can expressly or implicitly include at least one of the features. All directional indications (such as up, down, left, right, front, back ...) in the embodiments of the present application are only used to explain the relative position relationship, movement conditions, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication also changes accordingly. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the steps or units listed, but optionally also includes steps or units that are not listed, or optionally also includes other steps or units inherent to these processes, methods, products or devices.

[0034] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0035] During the research process of this application, it was found that: Fig.14 As shown, the layout of liquid crystal panels 301 of various sizes is arranged according to the size of the bare glass substrate 300. Generally, the larger the size of the product, the higher the proportion of glass waste generated. Therefore, the utilization of glass waste can improve the utilization rate of the bare glass substrate 300.

[0036] Large-sized direct-down light boards are mainly made of smaller-sized light boards. When there are a large number of lamp beads on the light board, such as mini LED or micro LED, the yield of the light board is extremely high. If one lamp bead is abnormal, it will affect the entire light board. Therefore, this application has found that splicing a smaller number of light boards can better balance this problem. At the same time, the smaller-sized light board substrate 302 can be cut synchronously during the process of cutting the liquid crystal panel 301, and the drive circuit and the insulating layer can be prepared on the bare glass substrate 300 through the same process, thereby saving processes.

[0037] In order to solve the above problems, the present application provides a backlight module and a display device.

[0038] See also Figures 1 to 4 , Figure 1 This is a schematic diagram of the first structure of a backlight module provided in an embodiment of the present application; Figure 2 This is a second structural schematic diagram of a backlight module provided in an embodiment of the present application; Figure 3 This is a third structural schematic diagram of a backlight module provided in an embodiment of the present application; Figure 4 This application Figure 3 A magnified schematic diagram of the structure of part A is provided.

[0039] like Figure 1 to Figure 3 As shown, a backlight module 100 includes a mounting frame 10 and a plurality of glass-based light strips 20, the mounting frame 10 having a mounting groove 101; the mounting groove 101 having a first side wall 11 and a second side wall 12 opposite to each other and a bottom wall 13 connecting the first side wall 11 and the second side wall 12; the plurality of glass-based light strips 20 are spliced ​​with each other and arranged in the mounting groove 101; each glass-based light strip 20 extends from the first side wall 11 to the second side wall 12.

[0040] Specifically, one end (e.g., one of the short sides) of each glass-based light bar 20 in the length direction may abut against the first side wall 11, and the other end (e.g., the other short side) may abut against the second side wall 12. A plurality of glass-based light bars 20 may be arranged in parallel along the length direction and spliced ​​with each other, thereby forming a large-sized light board or display screen. Furthermore, the glass-based light bar 20 may be a strip-shaped light bar.

[0041] The present application utilizes waste glass to make lamp board components and splices them into direct-down large-size lamp boards, which can not only improve the utilization rate of the bare glass substrate 300, but also reduce the yield loss of the lamp board, and the manufacturing process is simple.

[0042] In one embodiment, each glass-based light bar 20 includes a glass substrate 21, a conductive circuit layer 23 and a light-emitting element 22, wherein the conductive circuit layer 23 includes a conductive layer 231 disposed on the glass substrate 21 and an insulating layer 232 covering the conductive layer 231; the conductive layer 231 extends to an end of the glass substrate 21 close to the first side wall 11, and is partially exposed to form a driving electrode 2310; for example, the conductive layer 231 may partially extend to between the glass substrate 21 and the inner surface of the first side wall 11 to form a driving electrode 2310. The light-emitting element 22 is disposed on the insulating layer 232 (specifically, the surface of the insulating layer 232 away from the conductive layer 231) and is electrically connected to the conductive layer 231. The light-emitting element 22 may be an LED, a mini LED or a micro LED, etc., and the present application does not limit this. It can be understood that a plurality of glass-based light bars 20 spliced ​​together can be used for a direct-down backlight module 100 or an edge-entry backlight module 100.

[0043] The first side wall 11 is provided with a conductive connector 14 and a first driving circuit board 15 connected to the conductive connector 14; the first driving circuit board 15 may be a flexible circuit board. The conductive connector 14 is electrically connected to the driving electrode 2310, for example, the conductive connector 14 may extend to the inner surface of the first side wall 11 and directly contact the driving electrode 2310 to achieve electrical connection. The first driving circuit board 15 may extend to the outer surface of the first side wall 11, so as to avoid mutual interference between circuits.

[0044] In one embodiment, one end of the insulating layer 232 close to the first side wall 11 is spaced apart from one end of the glass substrate 21 close to the first side wall 11, or one end of the insulating layer 232 close to the first side wall 11 has an opening 2320, so that a portion of the conductive layer 231 located on the bottom wall 13 of the glass substrate 21 away from the mounting groove 101 is exposed to form a driving electrode 2310; that is, the driving electrode 2310 is formed at one end of the conductive layer 231 close to the inner surface of the first side wall 11.

[0045] like Figure 2-Figure 3 As shown, a first stopper 16 is provided on one side of the first side wall 11 away from the bottom wall 13, and the conductive connector 14 extends to a surface of the first stopper 16 close to the bottom wall 13 of the mounting groove 101, forming a contact electrode 141; that is, the contact electrode 141 is formed at one end of the conductive connector 14 close to the conductive layer 231. The first stopper 16 can prevent the light bar from falling off, and can also avoid the complicated process of setting the driving electrode 2310 on the side of the glass substrate 21, so that the manufacturing process of the driving circuit is simple.

[0046] One end of the glass-based light bar 20 is sandwiched between the first limiting portion 16 and the bottom wall 13 of the mounting groove 101 , and the driving electrode 2310 contacts the contact electrode 141 to achieve electrical connection, thereby achieving electrical conduction of the glass-based light bar 20 .

[0047] In one embodiment, if Figure 2 to Figure 4 As shown, one end of the glass-based light bar 20 is spaced from the first side wall 11, and an elastic member 30 is provided between one end of the glass-based light bar 20 and the first side wall 11. When the glass-based light bar 20 is installed, the elastic member 30 can be compressed, so as to facilitate the installation and fixation of the light bar. After the glass-based light bar 20 is installed, the elastic member 30 rebounds, so that the glass-based light bar 20 can be fixed together with the bottom wall 13 of the installation groove 101. Preferably, in a normal state, the distance between the elastic member 30 and the inner surface of the second side wall 12 is 0mm to 1mm smaller than the length of the strip-shaped glass-based light bar 20. One end of the glass-based light bar 20 is first inserted into the side where the elastic member 30 is located (i.e., the side of the first side wall 11), and after compressing the elastic member 30, the glass-based light bar 20 can be smoothly placed normally in the installation groove 101. Under the rebound effect of the elastic member 30, the glass-based light bar 20 is stably in contact with the inner surface of the second side wall 12 and forms a limiting effect. Thus, the thickness of the second side wall 12 needs to be smaller than the compressible amount of the elastic member 30 .

[0048] In one embodiment, the conductive connector 14 is a metal sheet, such as copper or aluminum. The contact electrode 141 is bent to form a spring, and the raised surface of the spring abuts against the drive electrode 2310, thereby enhancing the connection stability between the contact electrode 141 and the drive electrode 2310. The gap formed by the spring and the bottom wall 13 is smaller than the thickness of the strip-shaped glass-based light bar 20 (0 mm to 0.5 mm), so as to ensure that the spring and the drive electrode 2310 are effectively in contact and conductive. A guide structure (not shown) is provided in the contact area of ​​the spring with the strip-shaped glass-based light bar 20, that is, the gap between the outermost extension of the spring and the bottom wall 13 is slightly larger than the gap between the contact point between the spring and the drive electrode 2310 and the bottom wall 13, that is, the edge position of the spring is lower than its raised position, which is conducive to the insertion of the strip-shaped glass-based light bar 20.

[0049] In one embodiment, if Figure 3 As shown, a second limiting portion 17 is provided on a side of the second side wall 12 away from the bottom wall 13, and the other end of the glass-based light bar 20 is sandwiched between the second limiting portion 17 and the bottom wall 13. The first limiting portion 16 and the second limiting portion 17 are both extended in a relatively close direction, so that the side of the glass-based light bar 20 away from the bottom wall 13 can be limited as a whole. In one embodiment, the second limiting portion 17 can be a bent portion (not shown) formed integrally with the second side wall 12, and the bent portion can cover the surface of the insulating layer 232 away from the conductive layer 231, so as to limit and fix the glass-based light bar 20.

[0050] See also Figures 5 to 8 , Figure 5 This is a fourth structural schematic diagram of a backlight module provided in an embodiment of the present application; Figure 6 This application Figure 5 An enlarged schematic diagram of the structure of part B is provided;

[0051] Figure 7 This application Figure 5 Another enlarged schematic diagram of the structure of part B is provided; Figure 8 This is a process flow chart of installing a glass-based light bar provided in one embodiment of the present application.

[0052] In one embodiment, if Figure 5 to Figure 7 As shown, the second side wall 12 includes a first sub-side wall 121 and a second sub-side wall 122, the second sub-side wall 122 is arranged on the inner wall surface of the first sub-side wall 121, and the two can be connected by an adhesive layer 18; the second limiting portion 17 is arranged on the side of the second sub-side wall 122 away from the first sub-side wall 121, and is preferably located at the end of the second sub-side wall 122 away from the bottom wall 13. The spacing M between the first limiting portion 16 and the first sub-side wall 121 is greater than or equal to the length L of the glass substrate 21, which facilitates the installation of the glass-based light bar 20, avoids the problems of damaging the light bar when the glass-based light bar 20 is installed obliquely, the glass substrate 21 is easily broken, and the driving electrode 2310 is easily scratched by the first limiting portion 16.

[0053] In one embodiment, if Figure 6-7 As shown, the first sub-side wall 121 and the second sub-side wall 122 are fixed by an adhesive layer 18 or a magnetic member 19. In this embodiment, the first sub-side wall 121 and the second sub-side wall 122 are fixed by a magnetic member 19, so that it has the advantage of easy disassembly and replacement of the glass-based light strip 20.

[0054] See also Figure 8 According to the installation method shown, when installing the glass-based light bar 20, the glass-based light bar 20 can be first placed into the installation groove 101 along the vertical direction (step S1); then the glass-based light bar 20 is translated and embedded between the first limiting portion 16 and the bottom wall 13 of the installation groove 101 (step S2); finally, the second sub-side wall 122 is inserted between the glass-based light bar 20 and the first sub-side wall 121, and a conductive adhesive can be further filled between the first sub-side wall 121 and the second sub-side wall 122 to form an adhesive layer 18 (step S3); or a magnetic attraction component 19 can be set in advance on the wall surfaces opposite to the first sub-side wall 121 and the second sub-side wall 122, so that the two can be magnetically connected after contact.

[0055] See also Figures 9 to 12 , Fig. 9 is a schematic diagram of a top view of the backlight module provided in the first embodiment of the present application; Fig.10 This application Fig. 9 A schematic cross-sectional view of the structure along the CC direction is provided;

[0056] Fig.11is a schematic diagram of a top view of the structure of a backlight module provided in the second embodiment of the present application; Fig.12 It is a side view structural diagram of the backlight module provided in the second embodiment of the present application.

[0057] In the related art, for the glass-based light strip 20 that needs to be finely controlled, a more complex driving method is required. It can be controlled by densely arranging circuits on the glass substrate 21 to achieve a series or parallel relationship, or it can be controlled by an external driving circuit. For the requirement of one lamp and one driver, if the driving circuits are all led out from the short side of the strip light strip, it is necessary to set more driving electrodes 2310, which makes the electrode size small and is not conducive to subsequent splicing and assembly.

[0058] Therefore, in the embodiment provided in the present application, it is considered to realize the driving of the glass-based light bar 20 by splicing the glass-based light bar 20 first and then connecting the external driving circuit.

[0059] In one embodiment, the driving electrode 2310 may include a first driving electrode 2311 and a second driving electrode 2312, and the positive and negative electrode pairs (not shown) of each light-emitting element 22 are electrically connected to the first driving electrode 2311 and the second driving electrode 2312; the conductive connector 14 includes a first conductive connector (not shown) and a second conductive connector (not shown); the first driving electrodes 2311 of multiple glass-based light bars 20 are connected to the first electrode 151 of the same first driving circuit board 15 through the first conductive connector, and the second driving electrodes 2312 of multiple glass-based light bars 20 are connected to the second electrode 152 of the same first driving circuit board 15 through the second conductive connector, so that the multiple glass-based light bars 20 can be connected in parallel or in series. For example, the first electrode 151 and the second electrode 152 can be two strip electrodes arranged in parallel, so that the multiple first driving electrodes 2311 are connected to the first electrode 151 through the first conductive connector, and the multiple second driving electrodes 2312 are connected to the second electrode 152 through the second conductive connector to achieve parallel connection. The first electrode 151 may be a positive electrode, and the second electrode 152 may be a negative electrode. The first conductive connector and the second conductive connector may have the same structure as the conductive connector 14, and the present application does not limit this.

[0060] like Figure 9-10 As shown, a plurality of glass-based light bars 20 are connected in series. Fig.10The related structures of the conductive connector 14 and the first limiting portion 16 are omitted. Specifically, the multiple glass-based light bars 20 can be connected in series with the multiple light-emitting elements 22 of each light bar, and the cathode electrode of the previous light-emitting element 22 is the anode electrode of the next light-emitting element 22, wherein the adjacent glass-based light bars 20 can be connected in parallel or in series; or all the light-emitting elements 22 of the multiple glass-based light bars 20 are connected in series, wherein the adjacent glass-based light bars 20 are connected in series. The multiple glass-based light bars 20 are connected in series, so that the multiple light-emitting elements 22 can be turned on or off at the same time, which is convenient for unified control of the multiple light-emitting elements 22.

[0061] In another embodiment, if Fig.11 As shown, the multiple light-emitting elements 22 of each glass-based light bar 20 are arranged in a row, and the multiple light-emitting elements 22 of multiple glass-based light bars 20 are arranged in multiple rows and columns. In this embodiment, the driving electrode 2310 is a first driving electrode 2311, and each first driving electrode 2311 is electrically connected to the light-emitting elements 22 in the same column; a plurality of conductive connectors 14 and a plurality of first driving circuit boards 15 are disposed on the first side wall 11; the plurality of first driving circuit boards 15, the plurality of conductive connectors 14 and the plurality of driving electrodes 2310 are electrically connected one by one.

[0062] The backlight module 100 may further include a second driving circuit board 50, which includes a plurality of second driving electrodes 2312, each of which is electrically connected to the light emitting elements 22 in the same row, so that each light emitting element 22 can be independently controlled to emit light. This allows each light emitting element 22 to be finely controlled, improves control accuracy and display effects, and also facilitates timely replacement or repair of damaged light emitting elements 22 at a later stage.

[0063] In a further embodiment, Fig.11 As shown, the conductive layer 231 includes a first driving electrode 2311, a first driving circuit 2315 electrically connected to the first driving electrode 2311, and a plurality of connecting electrode pairs (not shown); the connecting electrode pairs include a first connecting electrode 2313 and a second connecting electrode 2314 arranged at intervals, the light-emitting element 22 is electrically connected to the first connecting electrode 2313 and the second connecting electrode 2314, respectively, and the second connecting electrode 2314 extends to one side of the light-emitting element 22; the first connecting electrode 2313 is electrically connected to the first driving circuit 2315. The first connecting electrode 2313 can be a positive electrode, and a plurality of first driving circuits 2315 arranged in multiple columns can be connected as a whole.

[0064] In one embodiment, if Fig.12As shown, the backlight module 100 may further include an encapsulation layer 40, which covers a plurality of glass-based light strips 20; the encapsulation layer 40 has a plurality of openings 41, each of which partially exposes a second connection electrode 2314. There are a plurality of second drive circuit boards 50, each of which includes a second drive electrode 2312 and a second drive circuit 51 electrically connected to the second drive electrode 2312, and each second drive circuit 51 is electrically connected to the second connection electrode 2314 of the light-emitting element 22 in the same row through the opening 41. For example, a second drive circuit board 50 is provided for each row, so that the second connection electrode 2314 of each light-emitting element 22 in each row is electrically connected to the second drive circuit 51, wherein each opening 41 may be filled with a conductive material to contact and conduct the second drive circuit 51 with each second connection electrode 2314, and the conductive material may be a conductive glue or a metal, etc.

[0065] The second connection electrode 2314 may be a negative electrode. The second driving circuit 51 and the first driving circuit 2315 may be arranged crosswise in the thickness direction of the backlight module 100 , and may be insulated and isolated by the insulating layer 232 .

[0066] like Fig.11 As shown, for example, first, the circuit of the glass substrate 21 can be provided with a positive driving electrode (first driving electrode 2311) at the edge of the short side, and a negative driving electrode (second driving electrode 2312) is correspondingly provided next to each welding point of the light-emitting element 22, and an opening 2320 is provided in the corresponding insulating layer 232 to expose the electrode, and then the glass-based light bar 20 is spliced ​​and fixed in accordance with the aforementioned method. For the electrodes exposed next to the welding points of the light-emitting element 22, an external strip driving circuit (such as a first driving circuit board 15) is used for series connection, which can be carried out by welding or attaching a strip flexible circuit. In order to reduce the impact on the display effect, the electrodes next to the welding points of the light-emitting element 22 can also be provided on the back of the strip light bar. In this way, a one-lamp-one-drive control method can be implemented, and other series and parallel driving schemes of glass-based light bars 20 can also be set, adjusted and adapted in this way, and the present application does not limit this.

[0067] Through the above arrangement, each light emitting element 22 can be easily controlled individually, thereby improving the control accuracy. At the same time, the arrangement of individual control can facilitate the replacement and repair of damaged individual light emitting elements 22 at a later stage.

[0068] In order to solve the above problems, the present application also provides a display device 200.

[0069] See also Fig.13 , Fig.13 is a schematic diagram of the structure of a display device provided in one embodiment of the present application.

[0070] In one embodiment, if Fig.13 As shown, the display device 200 may include a display panel 201 and a backlight module 100; the backlight module 100 is electrically connected to the display panel 201 and is used to provide a light source for the display panel 201; wherein the backlight module 100 is any of the backlight modules 100 described above and will not be described in detail here.

[0071] In one embodiment, the display panel 201 may be a liquid crystal display panel 201 (LCD, Liquid Crystal Display), an LED display panel 201 or an OLED display panel 201. The liquid crystal display panel 201 may include a counter substrate 2011, an array substrate 2012 and a liquid crystal layer 2013 disposed between the counter substrate 2011 and the array substrate 2012. The liquid crystal layer 2013 may include a plurality of liquid crystal molecules 2014. The counter substrate 2011 may specifically be a color film substrate. The backlight module 100 includes a mounting frame 10 and a plurality of glass-based light strips 20 mounted on the mounting frame 10. The mounting frame 10 has a mounting groove 101. The plurality of glass-based light strips 20 are spliced ​​with each other and disposed in the mounting groove 101. Each glass-based light strip 20 includes a glass substrate 21, a conductive circuit layer 23 and a light-emitting element 22. Please refer to the aforementioned content for the specific structure, which will not be described here.

[0072] The backlight module disclosed in the present application includes: a mounting frame and a plurality of glass-based light strips, the mounting frame has a mounting groove; the mounting groove has a first side wall and a second side wall opposite to each other; a plurality of glass-based light strips are spliced ​​together and arranged in the mounting groove; each glass-based light strip extends from the first side wall to the second side wall; each glass-based light strip includes: a glass substrate, a conductive circuit layer and a light-emitting element, the conductive circuit layer includes a conductive layer arranged on the glass substrate and an insulating layer covering the conductive layer; the conductive layer extends to an end of the glass substrate close to the first side wall, and is partially exposed to form a driving electrode; the light-emitting element is arranged on the insulating layer and electrically connected to the conductive layer; wherein a conductive connector and a first driving circuit board connected to the conductive connector are arranged on the first side wall; the conductive connector is electrically connected to the driving electrode. The mounting frame of the present application has the dual effects of installing the glass-based light strip and conducting the glass-based light strip, and at the same time, multiple glass-based light strips can be spliced ​​to form a large-sized light board, which can not only improve the utilization rate of the bare glass substrate, but also reduce the yield loss of the light board through the above-mentioned circuit structure and mounting structure design; and the manufacturing process is simple.

[0073] The above description is only an implementation method of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A backlight module, characterized in that: include: A mounting frame having a mounting slot; The mounting groove has a first side wall and a second side wall opposite to each other; A plurality of glass-based light strips are spliced ​​together and arranged in the mounting groove; Each of the glass-based light bars extends from the first side wall to the second side wall; each of the glass-based light bars comprises: Glass substrate; A conductive circuit layer, comprising a conductive layer disposed on the glass substrate and an insulating layer covering the conductive layer; the conductive layer extends to an end of the glass substrate close to the first side wall and is partially exposed to form a driving electrode; A light emitting element is disposed on the insulating layer and electrically connected to the conductive layer; Wherein, a conductive connecting member and a first driving circuit board connected to the conductive connecting member are arranged on the first side wall; and the conductive connecting member is electrically connected to the driving electrode.

2. The backlight module according to claim 1, characterized in that: One end of the insulating layer close to the first side wall is spaced apart from one end of the glass substrate close to the first side wall, or one end of the insulating layer close to the first side wall has an opening, so that a portion of the conductive layer located on the glass substrate away from the bottom wall of the mounting groove is exposed to form the driving electrode; A first limiting portion is provided on a side of the first side wall away from the bottom wall, and the conductive connecting member extends to a surface of the first limiting portion close to the bottom wall of the mounting groove to form a contact electrode; One end of the glass-based light bar is sandwiched between the first limiting portion and the bottom wall of the mounting groove, and the driving electrode is in contact with the contact electrode.

3. The backlight module according to claim 2, characterized in that: One end of the glass-based light bar is spaced apart from the first side wall, and an elastic member is disposed between one end of the glass-based light bar and the first side wall.

4. The backlight module according to claim 3, characterized in that: The conductive connecting member is a metal sheet, and the contact electrode is bent to form a spring sheet.

5. The backlight module according to claim 4, characterized in that: A second limiting portion is disposed on a side of the second side wall away from the bottom wall; the other end of the glass-based light strip is sandwiched between the second limiting portion and the bottom wall of the mounting groove.

6. The backlight module according to claim 5, characterized in that: The second side wall includes a first sub-side wall and a second sub-side wall, the second sub-side wall is arranged on the inner wall surface of the first sub-side wall, and the second limiting portion is arranged on a side of the second sub-side wall away from the first sub-side wall; the distance between the first limiting portion and the first sub-side wall is greater than or equal to the length of the glass substrate.

7. The backlight module according to claim 6, characterized in that: The first sub-side wall and the second sub-side wall are fixed by an adhesive layer or a magnetic attraction member.

8. The backlight module according to any one of claims 1 to 7, characterized in that: The driving electrode includes a first driving electrode and a second driving electrode, and each of the light-emitting elements is electrically connected to the first driving electrode and the second driving electrode; the conductive connecting member includes a first conductive connecting member and a second conductive connecting member; The first driving electrodes of the plurality of glass-based light bars are all connected to the first electrode of the same first driving circuit board through the first conductive connecting member, and the second driving electrodes of the plurality of glass-based light bars are all connected to the second electrode of the same first driving circuit board through the second conductive connecting member; or The multiple light-emitting elements of each glass-based light bar are arranged in a row, and the multiple light-emitting elements of multiple glass-based light bars are arranged in multiple rows and columns; the driving electrode is a first driving electrode, and each of the first driving electrodes is electrically connected to the light-emitting elements in the same column; the first side wall is provided with multiple conductive connectors and multiple first driving circuit boards; The plurality of first driving circuit boards, the plurality of conductive connectors and the plurality of driving electrodes are electrically connected one by one; the backlight module also includes a second driving circuit board, the second driving circuit board includes a plurality of second driving electrodes, and each of the second driving electrodes is electrically connected to the light-emitting elements in the same row.

9. The backlight module according to claim 8, characterized in that: The conductive layer includes a first driving electrode, a first driving circuit electrically connected to the first driving electrode, and a plurality of connecting electrode pairs; the connecting electrode pairs include a first connecting electrode and a second connecting electrode arranged at intervals, the light-emitting element is electrically connected to the first connecting electrode and the second connecting electrode respectively, and the second connecting electrode extends to one side of the light-emitting element; the first connecting electrode is electrically connected to the first driving circuit; The backlight module also includes an encapsulation layer, which covers the plurality of glass-based light strips; the encapsulation layer has a plurality of openings, each of which partially exposes a second connecting electrode; there are a plurality of second driving circuit boards, each of which includes a second driving electrode and a second driving circuit electrically connected to the second driving electrode, and each of the second driving circuits is electrically connected to the second connecting electrode of the light-emitting element in the same row through the opening.

10. A display device, characterized in that: include: Display panel; A backlight module is electrically connected to the display panel and is used to provide a light source for the display panel; wherein the backlight module is the backlight module according to any one of claims 1 to 9.

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