Backlight module and display device

Abstract

The application discloses a backlight module and a display device. The backlight module comprises a mounting frame and a plurality of glass-based light bars. The mounting frame has a mounting groove. The mounting groove has opposite first and second side walls. The plurality of glass-based light bars are spliced with each other and arranged in the mounting groove. 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. 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 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 with the conductive layer. The first side wall is provided with a conductive connecting piece and a first driving circuit board connected with the conductive connecting piece. The conductive connecting piece is electrically connected with the driving electrode. The application can not only improve the utilization rate of bare glass substrates, but also reduce the yield loss of light panels.

Description

TECHNICAL FIELD

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

[0002] With the continuous expansion of the panel industry, the industry competition is becoming more and more fierce, how to seize the cost advantage becomes an important factor to stand firm in the market position; therefore, improving the utilization rate of glass becomes the key point to reduce cost. In the related art, a lot of glass substrates will have glass remaining after being cut by a plate, which will cause considerable waste of glass material, increase production cost, and reduce manufacturing efficiency. When the number of lamp beads on the lamp plate is large, such as mini LED (Mini Light Emitting Diode) or micro LED (Micro Light Emitting Diode), the yield requirement of the lamp plate is extremely high, and one abnormal lamp bead will affect the entire lamp plate, so it is necessary to balance this problem. SUMMARY

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

[0004] To solve the above technical problems, the first technical solution provided by the present application is to provide a backlight module, comprising: a mounting frame and a plurality of glass-based lamp strips, the mounting frame having a mounting slot; the mounting slot has opposite first and second side walls; the plurality of glass-based lamp strips are spliced with each other and arranged in the mounting slot; each glass-based lamp strip extends from the first side wall to the second side wall; each glass-based lamp strip comprises a glass substrate, a conductive circuit layer and a light emitting element, the conductive circuit layer comprising 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 part of it is exposed to form a driving electrode; the light emitting element is arranged on the insulating layer and electrically connected with the conductive layer; wherein the first side wall is provided with a conductive connecting piece and a first driving circuit board connected with the conductive connecting piece; the conductive connecting piece is electrically connected with the driving electrode.

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

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

[0008] In an embodiment, the second sidewall away from the bottom wall is provided with a second limiting portion; the other end of the glass-based light bar is clamped between the second limiting portion and the bottom wall of the mounting groove.

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

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

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

[0012] In an embodiment, the conductive layer includes a first driving electrode, a first driving line electrically connected to the first driving electrode, and a plurality of connection electrode pairs; the connection electrode pair includes a first connection electrode and a second connection electrode arranged at intervals, the light emitting elements are respectively electrically connected to the first connection electrode and the second connection electrode, and the second connection electrode extends to one side of the light emitting element; the first connection electrode is electrically connected to the first driving line; the backlight module further includes an encapsulation layer, the encapsulation layer covers a plurality of the glass-based light bars; the encapsulation layer has a plurality of openings, each opening exposes a part of the second connection electrode; the number of the second driving circuit boards is a plurality, each second driving circuit board includes a second driving electrode and a second driving line electrically connected to the second driving electrode, and each second driving line is electrically connected to the second connection electrode of the light emitting elements in the same row through the opening.

[0013] To solve the above technical problems, the second technical solution provided by 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 for providing a light source for the display panel; wherein the backlight module is any one of the above-mentioned backlight modules.

[0014] The beneficial effects of the present application: different from the prior art, the backlight module of the present application comprises: a mounting frame and a plurality of glass-based light bars, the mounting frame has a mounting slot; the mounting slot has opposite first and second side walls; the plurality of glass-based light bars are spliced with each other and arranged in the mounting slot; 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, 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 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 with the conductive layer; wherein, the first side wall is provided with a conductive connecting piece and a first driving circuit board connected with the conductive connecting piece; the conductive connecting piece is electrically connected with the driving electrode. The mounting frame of the present application has the dual effects of mounting the glass-based light bar and turning on the glass-based light bar, and at the same time, the plurality of glass-based light bars can be spliced to form a large-size light panel, which not only can improve the utilization rate of bare glass substrates, but also can reduce the yield loss of the light panel through the above circuit structure and mounting structure design; and the manufacturing process is simple. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

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

[0017] Figure 2 is the second structure schematic diagram of the backlight module provided by an embodiment of the present application;

[0018] Figure 3 is the third structure schematic diagram of the backlight module provided by an embodiment of the present application;

[0019] Figure 4 is the structure enlarged schematic diagram of part A provided by the present application; Figure 3

[0020] Figure 5 is the fourth structure schematic diagram of the backlight module provided by an embodiment of the present application;

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

[0022] Figure 7 Figure 5 ​​​Another structural enlarged schematic view of part B provided;

[0023] Figure 8 An installation process flowchart of the glass-based light bar provided by an embodiment of the present application;

[0024] Figure 9 A top view structural schematic view of the backlight module provided by the first embodiment of the present application;

[0025] Figure 10 A top view structural schematic view of the backlight module provided by the second embodiment of the present application; Figure 9 A C-C direction cross-sectional structural schematic view provided by the present application;

[0026] Figure 11 A top view structural schematic view of the backlight module provided by the second embodiment of the present application;

[0027] Figure 12 A side view structural schematic view of the backlight module provided by the second embodiment of the present application;

[0028] Figure 13 A structural schematic view of the display device provided by an embodiment of the present application;

[0029] Figure 14 A cutting schematic view of the bare glass substrate provided by the present application.

[0030] Legend of reference signs:

[0031] 200, display device; 201, display panel; 2011, counter substrate; 2012, array substrate; 2013, liquid crystal layer; 2014, liquid crystal molecule; 100, backlight module; 10, mounting rack; 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 connecting piece; 141, contact electrode; 15, first driving circuit board; 151, first electrode; 152, second electrode; 16, first limiting part; 17, second limiting part; 18, adhesive layer; 19, magnetic attraction piece; 20, glass-based light bar; 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 piece; 40, encapsulation layer; 41, opening; 50, second driving circuit board; 51, second driving circuit; 300, bare glass substrate; 301, liquid crystal panel; 302, light plate substrate. DETAILED DESCRIPTION

[0032] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by a person of ordinary skill in the art without creative effort belong to the scope of protection of the present application.

[0033] The terms "first", "second", etc. in the present application are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second", etc. can explicitly or implicitly include at least one of the features. All directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between components in a certain posture (as shown in the drawings), and if the certain posture changes, the directional indications also change accordingly. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device including a series of steps or units is not limited to the listed steps or units, but can optionally include steps or units not listed, or can optionally include other steps or units inherent to the process, method, product or device.

[0034] In this document, the term "embodiment" means that the specific features, structures or characteristics described in connection with the embodiment can be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily mean the same embodiment, nor is it independent or alternative to other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0035] During the research of the present application, it is found that: Figure 14 As shown in the figure, the layout of arranging each size liquid crystal panel 301 according to the size of the bare glass substrate 300, the larger the size of the product, the higher the proportion of glass waste generated, so the utilization of glass waste can improve the utilization rate of the bare glass substrate 300.

[0036] The large-size direct-lit lamp panel is mainly spliced by smaller-size lamp panels. When the number of lamp beads on the lamp panel is large, such as mini LED or micro LED, the yield requirement of the lamp panel is extremely high, and one abnormal lamp bead will affect the entire lamp panel. Therefore, the present application finds that splicing by a smaller number of lamp panels can better balance this problem. At the same time, the smaller-size lamp panel substrate 302 can be cut synchronously in the process of cutting the liquid crystal panel 301, and the driving circuit and the insulating layer can be prepared on the bare glass substrate 300 through the same process, thereby saving the process.

[0037] To solve the above problems, the application provides a backlight module and a display device.

[0038] Please refer to Figures 1 to 4 , Figure 1 is a first structural schematic diagram of the backlight module provided by an embodiment of the application; Figure 2 is a second structural schematic diagram of the backlight module provided by an embodiment of the application; Figure 3 is a third structural schematic diagram of the backlight module provided by an embodiment of the application; Figure 4 is a structural enlarged schematic diagram of part A provided by the application. Figure 3

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

[0040] Specifically, one end (for example, one short side) of each glass-based light bar 20 in the length direction can abut against the first side wall 11, and the other end (for example, the other short side) can abut against the second side wall 12; the plurality of glass-based light bars 20 can be arranged side by side in the length direction and spliced with each other, so that a large-size light plate or display screen can be formed. Further, the glass-based light bar 20 can be a strip-shaped light bar.

[0041] The application can improve the utilization rate of bare glass substrates 300 and reduce yield loss of the light plate, and the manufacturing process is simple, by using glass waste materials to manufacture light plate components and splice them into a direct type large-size light plate.

[0042] ​In one embodiment, each glass-based light strip 20 includes a glass substrate 21, a conductive circuit layer 23, and a light-emitting element 22. 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 one end of the glass substrate 21 near the first sidewall 11 and is partially exposed to form a driving electrode 2310. For example, the conductive layer 231 may partially extend between the inner surface of the glass substrate 21 and the first sidewall 11 to form the driving electrode 2310. The light-emitting element 22 is disposed on the insulating layer 232 (specifically, on 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 can be an LED, a mini LED, or a micro LED, etc., and this application does not limit this. It is understood that multiple glass-based light strips 20 spliced ​​together can be used in a direct-lit backlight module 100 or a side-lit backlight module 100.

[0043] The first sidewall 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 can be a flexible circuit board. The conductive connector 14 is electrically connected to the driving electrode 2310. For example, the conductive connector 14 can extend to the inner surface of the first sidewall 11 and directly contact the driving electrode 2310 to achieve electrical connection. The first driving circuit board 15 can extend to the outer surface of the first sidewall 11, thereby avoiding interference between circuits.

[0044] In one embodiment, the end of the insulating layer 232 near the first sidewall 11 is spaced apart from the end of the glass substrate 21 near the first sidewall 11, or the end of the insulating layer 232 near the first sidewall 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 the end of the conductive layer 231 near the inner surface of the first sidewall 11.

[0045] like Figures 2 to 3 As shown, a first limiting portion 16 is provided on the side of the first sidewall 11 away from the bottom wall 13. The conductive connector 14 extends to a surface of the first limiting portion 16 near the bottom wall 13 of the mounting groove 101, forming a contact electrode 141; that is, the contact electrode 141 is formed at the end of the conductive connector 14 near the conductive layer 231. The first limiting portion 16 can prevent the lamp strip from falling off, and at the same time can avoid the complex process of setting the driving electrode 2310 on the side of the glass substrate 21, making the manufacturing process of the driving circuit simple.

[0046] One end of the glass-based light strip 20 is clamped between the first limiting part 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 realizing the electrical conduction of the glass-based light strip 20.

[0047] In an embodiment, as shown in Figures 2 to 4 one end of the glass-based light bar 20 is arranged apart from the first side wall 11, and an elastic member 30 is arranged between the 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, thereby facilitating the installation and fixation of the light bar. After the glass-based light bar 20 is installed, the elastic member 30 rebounds, thereby being able to fix the glass-based light bar 20 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 smaller than the length of the strip-shaped glass-based light bar 20 by 0mm-1mm. The glass-based light bar 20 is inserted into the side where the elastic member 30 is located (i.e., the side of the first side wall 11) first, and the elastic member 30 is compressed, and then the glass-based light bar 20 can be smoothly placed into the installation groove 101. Under the rebounding action of the elastic member 30, the glass-based light bar 20 stably contacts the inner surface of the second side wall 12 and forms a limiting action. In this way, the thickness of the second side wall 12 needs to be smaller than the compressible amount of the elastic member 30.

[0048] In an embodiment, the conductive connecting member 14 is a metal sheet, such as copper or aluminum, etc. The contact electrode 141 is bent to form a spring piece, and the protruding surface of the spring piece abuts against the driving electrode 2310, thereby being able to enhance the connection stability of the contact electrode 141 and the driving electrode 2310. The gap formed between the spring piece and the bottom wall 13 is smaller than 0mm-0.5mm of the thickness of the strip-shaped glass-based light bar 20, so as to ensure that the spring piece effectively contacts and conducts with the driving electrode 2310. The spring piece is provided with a guide structure (not shown in the figure) in the contact area with the strip-shaped glass-based light bar 20, that is, the gap between the outermost extension of the spring piece and the bottom wall 13 is slightly larger than the gap between the contact point of the spring piece and the driving electrode 2310 and the bottom wall 13, that is, the edge position of the spring piece is lower than the protruding position thereof, thereby being beneficial to the insertion of the strip-shaped glass-based light bar 20.

[0049] In an embodiment, as shown in Figure 3 the second side wall 12 is provided with a second limiting part 17 away from the bottom wall 13, and the other end of the glass-based light bar 20 is clamped between the second limiting part 17 and the bottom wall 13. The first limiting part 16 and the second limiting part 17 both extend in the direction of relatively approaching, thereby being able to form a limiting action on the whole side of the glass-based light bar 20 away from the bottom wall 13. In an embodiment, the second limiting part 17 can be a bending part (not shown in the figure) integrally formed with the second side wall 12, which can cover the surface of the insulating layer 232 away from the conductive layer 231, thereby limiting and fixing the glass-based light bar 20.

[0050] Please refer to Figures 5 to 8 , Figure 5 is a fourth structural schematic view of a backlight module provided by an embodiment of the present application; Figure 6 is a fourth structural schematic view of a backlight module provided by an embodiment of the present application;Figure 5 A structure enlarged schematic view of Part B provided;

[0051] Figure 7 An embodiment of the present application Figure 5 Another structure enlarged schematic view of Part B provided; Figure 8 An installation process flow chart of the glass-based light bar provided by an embodiment of the present application.

[0052] In an embodiment, as shown in Figures 5 to 7 The second side wall 12 comprises 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 through the adhesive layer 18; the second limiting part 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 distance M between the first limiting part 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 problems such as damage to the light bar, easy breakage of the glass substrate 21, and easy scratching of the driving electrode 2310 by the first limiting part 16 when the glass-based light bar 20 is installed obliquely.

[0053] In an embodiment, as shown in Figures 6 to 7 The first sub-side wall 121 and the second sub-side wall 122 are fixed through the adhesive layer 18 or the magnetic attraction piece 19, and in this embodiment, the first sub-side wall 121 and the second sub-side wall 122 are fixed through the magnetic attraction piece 19, which has the advantages of easy disassembly and replacement of the glass-based light bar 20.

[0054] Referring to the installation method shown in Figure 8 When installing the glass-based light bar 20, the glass-based light bar 20 can be first placed in the installation groove 101 in the vertical direction (step S1); then the glass-based light bar 20 is translated to be embedded between the first limiting part 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 the conductive adhesive can be further filled between the first sub-side wall 121 and the second sub-side wall 122 to form the adhesive layer 18 (step S3); or the magnetic attraction piece 19 can be arranged on the opposite wall surfaces of the first sub-side wall 121 and the second sub-side wall 122 in advance, so that the two are magnetically connected after being in contact.

[0055] Please refer to Figures 9 to 12 , Figure 9 A top view structural schematic view of the backlight module provided by the first embodiment of the present application; Figure 10 A cross-sectional structural schematic view along the direction C-C provided by the first embodiment of the present application; Figure 9

[0056] Figure 11 ​This is a top view of the backlight module provided in the second embodiment of this application; Figure 12 This is a side view structural diagram of the backlight module provided in the second embodiment of this application.

[0057] In related technologies, for glass-based light strips 20 that require precise control, a more complex driving method is needed. This can be achieved by densely arranging circuits on the glass substrate 21 to realize series or parallel connections, or by using external driving circuits for control. For the requirement of one driver per light, if all driving circuits are led out from the short side of the light strip, it is inevitable to set up a large number of driving electrodes 2310, resulting in small electrode sizes that are not conducive to subsequent splicing and assembly.

[0058] Therefore, in the embodiments provided in this application, the glass-based light strip 20 is driven by splicing the glass-based light strip 20 together 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. The positive and negative electrode pairs (not shown) of each light-emitting element 22 are electrically connected to both 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 the plurality of glass-based light strips 20 are all 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 the plurality of glass-based light strips 20 are all connected to the second electrode 152 of the same first driving circuit board 15 through the second conductive connector, allowing the plurality of glass-based light strips 20 to be connected in parallel or in series. For example, the first electrode 151 and the second electrode 152 may be two strip electrodes arranged side-by-side, such that the plurality of first driving electrodes 2311 are all connected to the first electrode 151 through the first conductive connector, and the plurality of second driving electrodes 2312 are all connected to the second electrode 152 through the second conductive connector, thereby achieving parallel connection. The first electrode 151 can be a positive electrode, and the second electrode 152 can be a negative electrode. The first and second conductive connectors can have the same structure as the conductive connector 14, and this application does not impose any restrictions on this.

[0060] like Figures 9 to 10 As shown, the multiple glass-based light strips 20 are connected in series, among which Figure 10The conductive connector 14 and the first limiting part 16 are omitted. Specifically, multiple glass-based lamp strips 20 can have multiple light-emitting elements 22 connected in series in each strip, with the negative electrode of the previous light-emitting element 22 being the positive electrode of the next light-emitting element 22. Adjacent glass-based lamp strips 20 can be connected in parallel or in series; or all light-emitting elements 22 of multiple glass-based lamp strips 20 can be connected in series, with adjacent glass-based lamp strips 20 connected in series. Connecting multiple glass-based lamp strips 20 in series allows multiple light-emitting elements 22 to be turned on or off simultaneously, facilitating unified control of multiple light-emitting elements 22.

[0061] In another embodiment, such as Figure 11 As shown, the multiple light-emitting elements 22 of each glass-based light strip 20 are arranged in a column, and the multiple light-emitting elements 22 of multiple glass-based light strips 20 are arranged in multiple rows and columns. In this embodiment, the driving electrode 2310 is the first driving electrode 2311, and each first driving electrode 2311 is electrically connected to the light-emitting elements 22 in the same column; multiple conductive connectors 14 and multiple first driving circuit boards 15 are provided on the first sidewall 11; the multiple first driving circuit boards 15, the multiple conductive connectors 14, and the multiple driving electrodes 2310 are electrically connected one-to-one.

[0062] The backlight module 100 may further include a second driving circuit board 50, which includes multiple second driving electrodes 2312. Each second driving electrode 2312 is electrically connected to a light-emitting element 22 in the same row, thereby allowing independent control of the light emission of each light-emitting element 22. This enables precise control of each light-emitting element 22, improving control accuracy and display effect, and also facilitates timely replacement or repair of damaged light-emitting elements 22.

[0063] In a further embodiment, such as Figure 11 As shown, the conductive layer 231 includes a first driving electrode 2311, a first driving line 2315 electrically connected to the first driving electrode 2311, and a plurality of connecting electrode pairs (not shown). Each connecting electrode pair includes a first connecting electrode 2313 and a second connecting electrode 2314 spaced apart. The light-emitting element 22 is electrically connected to both the first connecting electrode 2313 and the second connecting electrode 2314, with the second connecting electrode 2314 extending to one side of the light-emitting element 22. The first connecting electrode 2313 is electrically connected to the first driving line 2315. The first connecting electrode 2313 can be a positive electrode, and the plurality of first driving lines 2315 arranged in multiple rows can be connected as a single unit.

[0064] In one embodiment, such as Figure 12As shown, the backlight module 100 may further include an encapsulation layer 40 covering multiple glass-based LED strips 20. The encapsulation layer 40 has multiple openings 41, each opening 41 partially exposing a second connection electrode 2314. Multiple second driving circuit boards 50 are present, each including a second driving electrode 2312 and a second driving line 51 electrically connected to the second driving electrode 2312. Each second driving line 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, one second driving circuit board 50 is provided for each row, such that the second connection electrode 2314 of each light-emitting element 22 in each row is electrically connected to the second driving line 51. Each opening 41 may be filled with a conductive material to make contact and conduction between the second driving line 51 and each second connection electrode 2314. The conductive material may be conductive adhesive or metal, etc.

[0065] The second connecting electrode 2314 can be a negative electrode. The second driving line 51 and the first driving line 2315 can be arranged crosswise in the thickness direction of the backlight module 100 and are insulated from each other by the insulating layer 232.

[0066] like Figure 11 As shown, for example, the circuit of the glass substrate 21 can first be provided with a positive driving electrode (first driving electrode 2311) on the short edge, and a negative driving electrode (second driving electrode 2312) is provided next to the solder joint of each light-emitting element 22. An opening 2320 is provided in the insulating layer 232 to expose the electrode. Then, the glass-based light strip 20 is spliced ​​and fixed in the manner described above. For the electrodes exposed next to the solder joint of the light-emitting element 22, an external strip driving circuit (e.g., the first driving circuit board 15) is used for series connection, which can be done by welding or attaching a strip flexible circuit. In order to reduce the impact on the display effect, the electrodes next to the solder joint of the light-emitting element 22 can also be set on the back of the strip light strip. In this way, a one-lamp-one-driver control mode can be realized. The series and parallel driving schemes of other glass-based light strips 20 can also be set, adjusted and adapted in this way. This application does not limit this.

[0067] The above configuration allows for individual control of each light-emitting element 22, thereby improving control accuracy. Furthermore, this individual control configuration facilitates the replacement and repair of any damaged individual light-emitting elements 22 in the future.

[0068] To address the aforementioned problems, this application also provides a display device 200.

[0069] Please see Figure 13 , Figure 13 This is a simplified structural diagram of a display device provided in an embodiment of this application.

[0070] In an embodiment, as shown in Figure 13 The display device 200 can include a display panel 201 and a backlight module 100; the backlight module 100 is electrically connected with the display panel 201, for providing a light source for the display panel 201; wherein the backlight module 100 is any one of the backlight modules 100 described above, which will not be repeated here.

[0071] In an embodiment, the display panel 201 can be a liquid crystal display panel 201 (LCD), an LED display panel 201 or an OLED display panel 201; the liquid crystal display panel 201 can include a color filter substrate 2011, an array substrate 2012 and a liquid crystal layer 2013 disposed between the color filter substrate 2011 and the array substrate 2012, and the liquid crystal layer 2013 can include a plurality of liquid crystal molecules 2014; the color filter substrate 2011 can be a color filter substrate. The backlight module 100 includes a mounting frame 10 and a plurality of glass-based light bars 20 mounted on the mounting frame 10; the mounting frame 10 has a mounting groove 101, and the plurality of glass-based light bars 20 are spliced with each other and disposed in the mounting groove 101; each glass-based light bar 20 includes a glass substrate 21, a conductive circuit layer 23 and a light emitting element 22, and the specific structure is described above, which will not be repeated here.

[0072] The backlight module disclosed in the present application includes a mounting frame and a plurality of glass-based light bars; the mounting frame has a mounting groove; the mounting groove has opposite first and second side walls; the plurality of glass-based light bars are spliced with each other and disposed in the mounting groove; each glass-based light bar extends from the first side wall to the second side wall; each glass-based light bar includes a glass substrate, a conductive circuit layer and a light emitting element; the conductive circuit layer includes a conductive layer disposed on the glass substrate and an insulating layer covering the conductive layer; the conductive layer extends to one end of the glass substrate near the first side wall and is partially exposed to form a driving electrode; the light emitting element is disposed on the insulating layer and electrically connected with the conductive layer; wherein the first side wall is provided with a conductive connecting piece and a first driving circuit board connected with the conductive connecting piece; the conductive connecting piece is electrically connected with the driving electrode. The mounting frame of the present application has the dual effects of mounting the glass-based light bars and turning on the glass-based light bars, and the plurality of glass-based light bars can be spliced to form a large-size light panel, which not only can improve the utilization rate of bare glass substrates, but also can reduce the yield loss of the light panel through the above circuit structure and mounting structure design; and the manufacturing process is simple.

[0073] The above description is only an embodiment of the present application, and does not limit the patent scope of the present application, and any equivalent structure or equivalent process transformation using the content of the specification and drawings, or direct or indirect application 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: Mounting bracket with mounting slots; The mounting groove has opposing first and second sidewalls; Multiple glass-based light strips are spliced ​​together and set in the mounting groove; Each of the glass-based light strips extends from the first sidewall to the second sidewall; each of the glass-based light strips includes: Glass substrate; wherein the glass substrate is a smaller-sized lamp board substrate formed simultaneously during the cutting of the liquid crystal panel; The conductive circuit layer includes a conductive layer disposed on the glass substrate and an insulating layer covering the conductive layer; the conductive layer extends to one end of the glass substrate near the first sidewall 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; The first sidewall is provided with a conductive connector and a first driving circuit board connected to the conductive connector; the conductive connector is electrically connected to the driving electrode. A first limiting portion is provided on the side of the first sidewall away from the bottom wall, and the conductive connector extends to the surface of the first limiting portion near the bottom wall of the mounting groove to form a contact electrode.

2. The backlight module according to claim 1, characterized in that, The insulating layer is spaced apart from the end of the glass substrate near the first sidewall, or the end of the insulating layer near the first sidewall has an opening, such that the portion of the conductive layer located on the bottom wall of the glass substrate away from the mounting groove is exposed to form the driving electrode. One end of the glass-based light strip is clamped between the first limiting part 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 strip is spaced apart from the first sidewall, and an elastic element is provided between one end of the glass-based light strip and the first sidewall.

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

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

6. The backlight module according to claim 5, characterized in that, The second sidewall includes a first sub-sidewall and a second sub-sidewall. The second sub-sidewall is disposed on the inner wall surface of the first sub-sidewall, and the second limiting portion is disposed on the side of the second sub-sidewall away from the first sub-sidewall. The distance between the first limiting portion and the first sub-sidewall 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-sidewall and the second sub-sidewall are fixed together by an adhesive layer or a magnetic closure.

8. The backlight module according to any one of claims 1-7, 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 both 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 the plurality of glass-based light strips are all connected to the first electrode of the same first driving circuit board through the first conductive connector, and the second driving electrodes of the plurality of glass-based light strips are all connected to the second electrode of the same first driving circuit board through the second conductive connector. or The light-emitting elements of each glass-based light strip are arranged in a column, and the light-emitting elements of multiple glass-based light strips are arranged in multiple rows and columns; the driving electrode is a first driving electrode, and each first driving electrode 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 sidewall. Multiple first driving circuit boards, multiple conductive connectors, and multiple driving electrodes are electrically connected in a one-to-one correspondence; the backlight module also includes a second driving circuit board, which includes multiple second driving electrodes, each of which is electrically connected to the light-emitting element 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 line 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 spaced apart, 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 line. The backlight module further includes an encapsulation layer covering a plurality of glass-based light strips; the encapsulation layer has a plurality of openings, each opening exposing a portion of a second connection electrode; there are a plurality of second driving circuit boards, each second driving circuit board including a second driving electrode and a second driving line electrically connected to the second driving electrode, each second driving line being electrically connected to the second connection 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, electrically connected to the display panel, 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.

Images