Preparation Method of Light Bar and Backlight Module

Abstract

The present application provides a method for preparing a light bar and a backlight module. The preparation method includes: providing a glass residue, where the glass residue includes the remaining part of a large glass plate after manufacturing the substrate of a display panel; dividing the glass residue into a plurality of first regions and second regions that are spliced with each other, the first region having a first preset shape and the second region having a second preset shape different from the first preset shape; encapsulating light-emitting units in the first region and the second region to form a first light bar and a second light bar; cutting the glass residue along the edge line of the first region and the edge line of the second region respectively, so that the first light bar has the first preset shape and the second light bar has the second preset shape. This preparation method can effectively improve the utilization rate of the glass residue and reduce the production cost of the light bar.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to a method for manufacturing a light bar and a backlight module. Background Art

[0002] In recent years, due to advantages such as low radiation, low power consumption, low space occupancy, portability, and aesthetics, liquid crystal display panels (LCDs) have become mainstream display products. The industry has been continuously expanding, and the competition in the industry has become increasingly fierce.

[0003] Currently, how to seize the cost advantage has become one of the important research hotspots. To reduce costs and enhance product advantages, the residual material of the large glass plate remaining after manufacturing the array substrate can be used as the substrate for the light bar to manufacture the light bar. In this way, waste can be recycled, the waste production rate of the large glass plate can be reduced, and at the same time, the cost of the light bar can be reduced.

[0004] However, when using the glass residual material to manufacture the light bar, due to the fixed size of the light bar, there is a problem of low utilization rate of the glass residual material. Summary of the Invention

[0005] The present application provides a method for manufacturing a light bar and a backlight module, aiming to solve the problem of low utilization rate of glass residual material caused by the fixed size of the light bar in the prior art.

[0006] To solve the above technical problems, the first technical solution provided by the present application is: providing a method for manufacturing a light bar. The manufacturing method includes:

[0007] Providing glass residual material, where the glass residual material includes the remaining part of the large glass plate after manufacturing the substrate of the display panel;

[0008] Dividing the glass residual material into a plurality of first regions and second regions that are spliced with each other, where the first region has a first preset shape, and the second region has a second preset shape different from the first preset shape;

[0009] Encapsulating light-emitting units in the first region and the second region to form a first light bar and a second light bar;

[0010] Cutting the glass residual material along the edge line of the first region and the edge line of the second region respectively, so that the first light bar has the first preset shape and the second light bar has the second preset shape.

[0011] Wherein, the first preset shape is a rectangle, a plurality of the first regions are arranged in parallel and at intervals, the second region has a plurality of first hollow portions, and a plurality of the first regions are embedded in the first hollow portions, and the second preset shape is a rectangle with a plurality of the first hollow portions.

[0012] Among them, the spacing between adjacent second regions, the spacing between adjacent first regions embedded in the second regions, the distance between the edge line of the first region and the edge line of the second region, and the spacing between the edge line of the second region and the outer edge of the glass residue are all equal to a preset distance.

[0013] Among them, the step of encapsulating the light-emitting units in the first region and the second region to form the first light bar and the second light bar specifically includes:

[0014] Encapsulating a first light-emitting unit on the first region to form the first light bar;

[0015] Encapsulating a second light-emitting unit and a third light-emitting unit on the second region to form the second light bar; among them, the second light-emitting unit is encapsulated at a position between adjacent first hollow parts, and the third light-emitting unit is encapsulated at the edge position of the second region.

[0016] Among them, the step of dividing the glass residue into a plurality of mutually spliced first regions and second regions further includes:

[0017] The glass residue is further divided into a third region that is mutually spliced with the first region and the second region, and the third region is located in the edge region of the glass residue; the third region is of a third preset shape, and the third preset shape is a rectangle whose length and / or width is different from the first preset shape, and the distance between the edge line of the third preset shape and other adjacent regions is equal to the preset distance.

[0018] Among them, the first preset shape is a circle, a square, a cross or an irregular shape, the second region has a plurality of second hollow parts, the shape of the second hollow part is the same as the first preset shape, and a plurality of the first regions are equally spaced and embedded in the second hollow parts, and the second preset shape is a regular or irregular shape having a plurality of the second hollow parts.

[0019] Among them, the spacing between adjacent first regions embedded in the same second region and the spacing between adjacent second regions are both equal to the preset distance.

[0020] Among them, the first regions are distributed in a matrix on the glass residue, and the second regions are arranged at positions between adjacent first regions to be spliced with the first regions.

[0021] Among them, the step of cutting the glass residue respectively according to the edge line of the first region and the edge line of the second region includes:

[0022] Cutting the glass residue along the edge line of the first area by laser so that the first light bar has the first preset shape;

[0023] The glass residue is cut according to the edge line of the second area in a common cutting manner, so that the second light bar has the second preset shape.

[0024] In order to solve the above technical problem, the second technical solution provided by the present application is to provide a backlight module, wherein the backlight module comprises a light bar prepared by the preparation method involved in the above technical solution.

[0025] Beneficial effects of the present application: Different from the prior art, the present application provides a method for preparing a light bar and a backlight module. The method for preparing a light bar utilizes the residual material portion remaining after a large glass plate is used to make a substrate for a display panel as a substrate of the light bar to prepare the light bar, thereby improving the utilization rate of the residual glass material and reducing the cost of the light bar. Furthermore, the method for preparing the light bar divides the residual glass material into a plurality of first areas and second areas that are spliced with each other, and makes the first preset shape of the first area different from the second preset shape of the second area, that is, combining and splicing the first areas and second areas of different shapes, so as to optimize the regional planning of the residual glass material, so that the areas on the residual glass material are more compact, the area of the non-used area of the residual glass material is reduced, and the waste of the residual glass material is significantly reduced, thereby further effectively improving the utilization rate of the residual glass material and reducing the production cost. At the same time, by making light bars on the first area and the second area, light bars of different shapes and sizes can be obtained, which can be used in backlight modules or other light-emitting modules of different models. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] 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 technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0027] Figure 1 It is a schematic flow chart of a method for preparing a light bar provided in one embodiment of the present application;

[0028] Figure 2 is a schematic flow chart of a method for preparing a light bar provided in another embodiment of the present application;

[0029] Figure 3 This is a schematic diagram of the regional division structure of a large glass plate provided in the first embodiment of the present application;

[0030] Figure 4 yesFigure 3 Schematic plan view of the first light bar and the second light bar corresponding to the embodiment;

[0031] Figure 5 Schematic diagram of the regional division structure of the large glass plate provided by the second embodiment of the present application;

[0032] Figure 6 Schematic diagram of the regional division structure of the large glass plate provided by the third embodiment of the present application;

[0033] Figure 7 Schematic diagram of the regional division structure of the large glass plate provided by the fourth embodiment of the present application;

[0034] Figure 8 Schematic diagram of the regional division structure of the large glass plate provided by the fifth embodiment of the present application;

[0035] Figure 9 Schematic diagram of the regional division structure of the large glass plate provided by the sixth embodiment of the present application;

[0036] Figure 10 Schematic diagram of the regional division structure of the large glass plate provided by the sixth embodiment of the present application;

[0037] Figure 11 Schematic flow chart of step S4 provided by an embodiment of the present application;

[0038] Figure 12 Schematic diagram of the structure of the backlight module provided by an embodiment of the present application.

[0039] Reference numerals:

[0040] 1 - Large glass plate; 10 - Substrate area; 11 - Array area; 20 - Light bar area; 21 - First area; 210 - First light bar; 211 - First light-emitting unit; 22 - Second area; 220 - Second light bar; 221 - First hollowed-out part; 222 - Second light-emitting unit; 223 - Third light-emitting unit; 224 - Second hollowed-out part; 100 - Backlight module; 101 - Back plate; 102 - Light board; 103 - Light guide plate; 104 - Optical film. Detailed implementation manners

[0041] The solutions of the embodiments of the present application will be described in detail below with reference to the accompanying drawings of the specification.

[0042] In the following description, specific details such as specific system structures, interfaces, and technologies are presented for the purpose of illustration rather than limitation, so as to thoroughly understand the present application.

[0043] The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present application.

[0044] The terms "first", "second", and "third" in the present application are only for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", and "third" may explicitly or implicitly include at least one of such features. In the description of the present application, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined. 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 positional relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but optionally further includes steps or units not listed, or optionally further includes other steps or units inherent to these processes, methods, products, or devices.

[0045] Referring to "embodiments" herein means that the specific features, structures, or characteristics described in connection with the embodiments can be included in at least one embodiment of the present application. The phrase appears in various places in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0046] The present application will be described in detail below with reference to the accompanying drawings and embodiments.

[0047] Please refer to Figure 1 and Figure 2 , Figure 1 is a schematic flowchart of a method for preparing a light bar provided by an embodiment of the present application, Figure 2 is a schematic structural diagram of the regional division of a large glass plate provided by the first embodiment of the present application. In this embodiment, a method for preparing a light bar is provided. The light bar prepared by this preparation method can be used in a backlight module 100 (see Figure 12 ) or other light-emitting modules such as lamps. Specifically, the preparation method includes the following steps:

[0048] S1: Provide glass remnants, where the glass remnants include the remaining part of the large glass sheet 1 after manufacturing the substrate of the display panel.

[0049] S2: Divide the glass remnants into a plurality of first regions 21 and second regions 22 that are spliced with each other. The first region 21 has a first preset shape, and the second region 22 has a second preset shape different from the first preset shape.

[0050] S3: Package the light-emitting units in the first region 21 and the second region 22 to form a first light bar 210 and a second light bar 220.

[0051] S4: Cut the glass remnants respectively along the edge lines of the first region 21 and the second region 22, so that the first light bar 210 has the first preset shape and the second light bar 220 has the second preset shape.

[0052] In this embodiment, the leftover material after using the large glass sheet 1 to manufacture the substrate of the display panel is used as the substrate of the light bar for manufacturing the light bar. Generally, the upper substrate and the lower substrate of the display panel, that is, the array substrate and the color filter substrate, are prepared on the large glass sheet. After preparing the upper and lower substrates, the remaining remnants of the large glass sheet are discarded in large quantities because their shapes and sizes do not meet the requirements for preparing the upper and lower substrates. In the embodiments of the present application, the leftover scraps of the large glass sheet 1 remaining after manufacturing the array substrate or the color filter substrate are used to manufacture the light bar, which can not only make use of waste and improve the utilization rate of glass remnants, but also reduce the production cost of the light bar by using the glass remnants to manufacture the light bar.

[0053] Specifically, as Figure 2 shown, the large glass sheet 1 includes a substrate area 10 and a light bar area 20. The substrate area 10 is the main area for manufacturing the array substrate. The glass remnants are the corresponding part of the large glass sheet 1 outside the substrate area 10, and the glass remnants include the light bar area 20 and can be used to manufacture the light bar. Among them, the substrate area 10 includes a plurality of array areas 11 distributed in an array. The light bar area 20 is located on one side of the substrate area 10. After the array substrate or the color filter substrate is prepared in the substrate area 10, it is cut to obtain a plurality of independent array substrates or color filter substrates, and the remaining glass remnants after cutting include the light bar area 20.

[0054] Specifically, before manufacturing the light bar in the light bar area 20, the light bar area 20 is planned first. Referring to step S2, in the light bar area 20, the glass waste is divided into a plurality of first areas 21 and second areas 22 that are spliced with each other. The first area 21 has a first preset shape, and the second area 22 has a second preset shape different from the first preset shape. That is, by combining and piecing together the first areas 21 and second areas 22 with different shapes, the regional planning of the glass waste is optimized and designed, making the areas on the glass waste more compact, reducing the area of the non-use area of the glass waste, significantly reducing the waste of the glass waste, and further effectively improving the utilization rate of the glass waste.

[0055] Specifically, in step S3, by encapsulating the light-emitting units on the first area 21 and the second area 22, a first light bar 210 is formed on the first area 21, and a second light bar 220 is formed on the second area 22. In step S4, through the glass cutting process, the glass waste is cut respectively according to the edge lines of the first area 21 and the second area 22, so that the first light bar 210 has a first preset shape, and the second light bar 220 has a second preset shape; since the first light bar 210 and the second light bar 220 have different shapes and sizes, they can be used in different models of the backlight module 100 or other light-emitting modules.

[0056] Please refer to Figure 1 and Figure 3 , Figure 3 FIG. is a schematic flow chart of a method for manufacturing a light bar provided by another embodiment of the present application. It should be noted that in the manufacturing method provided by the specific embodiment of the present application, the process sequence of step S3 and step S4 can be specifically determined according to the specific encapsulation process of the light-emitting unit, and no limitation is made thereto. For example, after step S2, the corresponding circuit layers and bonding pads can be first manufactured on the first area 21 and the second area 22, and then step S4 is performed to cut the glass waste according to the edge lines of the first area 21 and the second area 22, and finally step S3 is performed to encapsulate the light-emitting units on the first area 21 and the second area 22 to form the first light bar 210 and the second light bar 220; or, after step S2, step S3 can be first performed to encapsulate the light-emitting units on the first area and the second area, and then step S4 is performed to cut the glass waste.

[0057] Please continue to refer to Figure 2In the present embodiment, the light bar area 20 is located on one side of the substrate area 10, and the portion of the glass plate 1 where the light bar area 20 is located is the glass residue. In the light bar area 20, the first area 21 can be specifically set to a rectangle, that is, the first preset shape is a rectangle, and multiple first areas 21 are arranged in parallel and at equal intervals in a row, the second area 22 has multiple first hollow portions 221, and the multiple first areas 21 are embedded in the first hollow portions 221, and the second preset shape is set to a rectangle with multiple first hollow portions 221. It can be understood that, in the light bar area 20, the outer contour of the second preset area is a rectangle, and the interior of the rectangle has a plurality of first hollow portions 221 arranged in rows at equal intervals, and the first hollow portions 221 are strip-shaped rectangles, so that the second preset area forms a shape similar to "sun, eye"; the area corresponding to the first hollow portions 221 in the second area 22 is planned as the first area 21, forming a mutually spliced form in which the second area 22 surrounds the first area 21. By planning and designing the light bar area 20 in this way, the space design on the glass residue is more compact, which can effectively reduce the area of the non-use area, reduce material waste, and thus significantly improve the utilization rate of the glass residue.

[0058] Furthermore, in this embodiment, the distance d3 between adjacent second regions 22, the distance d1 between adjacent first regions 21 embedded in the second region 22, the distance d2 between the edge line of the first region 21 and the edge line of the second region 22, and the distance d4 between the edge line of the second region 22 and the outer edge of the glass residue are all equal to the preset distance. Furthermore, in the substrate region 10, a plurality of array regions 11 arranged in a preset arrangement are divided, and the distance d5 between the array regions 11 and the distance d6 between the array region 11 close to the edge of the substrate region 10 and the outer edge line of the substrate region 10 are also equal to the preset distance. That is, in Figure 2 In the example, d1=d2=d3=d4=d5=d6, by setting the distances between the above regions, each distance is equal to the same preset distance, so that in the subsequent cutting process, it can be ensured that the process parameters will not be readjusted due to directional problems during the cutting process to ensure cutting efficiency. Specifically, the preset distance can be set according to actual needs to meet the process and light bar size requirements.

[0059] Please refer to Figure 4 , Figure 4 yes Figure 3 Schematic diagram of the planar structure of the first light bar and the second light bar corresponding to the embodiment. In this embodiment, corresponding to the area planning of the glass residues in step S2 and the distribution planning of the light-emitting units on the light bar, step S3 specifically includes the following steps:

[0060] S31 : encapsulating the first light emitting unit 211 on the first region 21 to form a first light bar 210 .

[0061] S32: Encapsulate the second light-emitting unit 222 and the third light-emitting unit 223 on the second region 22 to form the second light bar 220. Among them, encapsulate the second light-emitting unit 222 at the position between adjacent first hollow portions 221, and encapsulate the third light-emitting unit 223 at the edge position of the second region 22.

[0062] Specifically, the process of step S31 and step S32 can be carried out synchronously, or can also be carried out successively. The sequence can be determined according to needs and is not limited in this regard.

[0063] Among them, part of the glass residue of the first region 21 is used to make the first light bar 210, and the first light-emitting unit 211 is encapsulated on the first region 21 to form the first light bar. The number and arrangement of the first light-emitting units 211 can be specifically determined according to the needs of the first light bar 210 and are not limited in this regard. For example, according to the requirements of the first light bar 210, a plurality of light-emitting units 211 are arranged along the length direction of the first light bar 210, and the distance between adjacent first light-emitting units 211 is a preset distance, which can be arranged at equal distances, or the distance can gradually decrease or increase, or the distance in the middle region is small and the distance in the two side regions is large, or other arrangements can also be made. The shape, size, power, and light-emitting color of the first light-emitting unit 211 can also be set according to actual needs and are not specifically limited in this regard.

[0064] Among them, part of the glass residue of the second region 22 is used to make the second light bar 220, and the second light-emitting unit 222 and the third light-emitting unit 223 are encapsulated on the second region 22. Among them, the second light-emitting unit 222 is encapsulated at the position between adjacent first hollow portions 221, and the third light-emitting unit 223 is encapsulated at the edge position of the second region 22, so that the third light-emitting unit 223 is distributed around the second light-emitting unit 222 along the edge of the second region 22.

[0065] Among them, the second light-emitting unit 222 is the main light-emitting unit of the second light bar 220, and is arranged on the glass residue between the adjacent first hollow parts 221; the number and arrangement of the second light-emitting units 222 can be set according to actual needs. Specifically, on the second light bar 220, the light-emitting units emit light in a fan-shaped manner, and the light-emitting areas of adjacent main light-emitting units will overlap, but the outermost main light-emitting units lack the outer superimposed light field, so the brightness of the edge area of the light bar is relatively low. When used in a display device, the brightness of the edge area of the display panel is relatively low, resulting in a dark edge phenomenon; therefore, in this embodiment, a third light-emitting unit 223 is also encapsulated at the edge position of the second area 22, so that the third light-emitting unit 223 is adjacent to the outermost second light-emitting unit 222, and the third light-emitting unit 223 surrounds the outermost second light-emitting unit 222, thereby supplementing the outer side of the second light-emitting unit 222, so that the light field of the second light bar 220 is more balanced, avoiding the dark edge phenomenon. Specifically, the luminous color of the third light-emitting unit 223 is the same as the luminous color of the second light-emitting unit 222. The parameters such as shape, size and power of the third light-emitting unit 223 may be different from or the same as those of the second light-emitting unit 222, and can be set according to actual needs. The number of the second light-emitting units 222 and the number of the second light-emitting units 222 can also be set according to actual needs, and there is no specific restriction on this.

[0066] In this embodiment, the second light strip 220 shaped like a "sun, eye" can be obtained by the above-mentioned preparation method, so that when the second light strip 220 is used in a direct-type backlight module, it is not necessary to assemble them one by one like a strip-shaped light strip, thereby making the production efficiency of the backlight module 100 higher and facilitating production.

[0067] See also Figure 5 , Figure 5It is a schematic diagram of the regional division structure of the large glass plate provided by the second embodiment of the present application. In this embodiment, the first preset shape is a strip-shaped rectangle, and the second preset shape is a strip-shaped rectangle with a length and / or width different from that of the first preset shape, that is, the shapes of the first region 21 and the second region 22 are rectangles with different sizes. Specifically, multiple first regions 21 are arranged in columns at equal intervals along the length direction of the light bar area 20 and are parallel to each other. Multiple second regions 22 extend along the length direction of the light bar area 20 and are located at the edge positions of the light bar area 20. It should be noted that the mutual parallelism of the multiple first preset regions involved in the embodiments of the present invention means that when the first region 21 has the shape of a strip-shaped rectangle, each long side of the multiple first regions 21 is parallel to each other. In this embodiment, through the splicing and planning design of the first regions 21 and the second regions 22 with different sizes, the space design on the glass waste is made more compact, the area of the non-use region can be effectively reduced, and the waste of materials can be reduced, thereby significantly improving the utilization rate of the glass waste. Similarly, in this embodiment, the distance d1 between adjacent first regions 21, the distance d3 between adjacent second regions 22, the distance d2 between the first region 21 and the edge line of the light bar area 20, the distance d4 between the second region 22 and the edge line of the light bar area 20, and the distance d7 between the second region 22 and the adjacent first region 21 are all equal to the same preset distance. Thus, in the subsequent cutting process, it can be ensured that the cutting process does not require readjustment of the process parameters due to directional problems, so as to ensure the cutting efficiency.

[0068] In this embodiment, after the above-mentioned space planning design of the glass waste, and then through subsequent processes, first light bars 210 and second light bars 220 with different lengths and / or widths can be obtained. When they are used in the backlight module 100 or the light-emitting module, for modules of different sizes, the first light bars 210 and the second light bars 220 can be combined and designed. Or, according to the sizes of the light bars required for modules of different sizes, the above-mentioned space planning is carried out on the first region 21 and the second region 22, so as to reduce the non-use area of the glass waste and improve the utilization rate of the glass waste.

[0069] Please refer to Figure 6 , Figure 6This is a schematic diagram of the regional division structure of the glass plate provided in the third embodiment of the present application. In this embodiment, the first preset shape is a strip rectangle, a plurality of first regions 21 are arranged in parallel and at equal intervals, the second region 22 has a plurality of first hollow portions 221, and the plurality of first regions 21 are embedded in the first hollow portions 221, and the second preset shape is set as a rectangle with a plurality of first hollow portions 221; the outer contour of the second preset region is a rectangle, and the interior of the rectangle has a plurality of first hollow portions 221 arranged in a row at equal intervals, and the first hollow portions 221 are strip rectangles, so that the second preset region forms a shape similar to "日,目"; the area corresponding to the first hollow portion 221 in the second region 22 is planned as the first region 21, forming a mutually spliced form in which the second region 22 surrounds the first region 21. Furthermore, the light bar area 20 also includes a third area 23, and the third area 23 has a third preset shape, which is a strip-shaped rectangle with a length and / or width different from the first preset shape, that is, the third area 23 and the second area 22 are rectangles of different sizes; multiple third areas 23 are extended along the length direction of the light bar area 20, located at the edge of the light bar area 20, and adjacent to the second area 22. By planning and designing the light bar area 20 in this way, the space design on the glass residue is more compact, which can effectively reduce the area of the non-use area and reduce the waste of materials, thereby significantly improving the utilization rate of the glass residue. Similarly, the spacing between each area is equal to the same preset distance, that is, d1=d2=d3=d4=d5=d6 in the figure, so that in the subsequent cutting process, it can be ensured that the process parameters will not be readjusted due to directional problems during the cutting process to ensure cutting efficiency.

[0070] Corresponding to the third area 23, step S2 of the preparation method further includes: dividing the glass residue into a third area 23 which is spliced with the first area 21 and the second area 22, and the third area 23 is located at the edge area of the glass residue. The third area 23 is a third preset shape, which is a rectangle having a length and / or width different from the first preset shape, and the spacing between the edge line of the third preset shape and other adjacent areas is equal to the preset distance.

[0071] Corresponding to the third region 23, step S3 of the preparation method further includes:

[0072] S33: Encapsulating a fourth light emitting unit on the third area 23 to form a third light bar.

[0073] Through the above steps, a third light bar having a third preset shape is obtained.

[0074] See also Figure 7 , Figure 7It is a schematic diagram of the regional division structure of the large glass plate provided by the fourth embodiment of the present application. In this embodiment, the first preset shape is circular, and multiple first regions 21 can be arranged in a matrix; the second region 22 has multiple second hollow parts 224, and the shape of the second hollow part 224 is the same as the first preset shape. Multiple first regions 21 are equally spaced and embedded in the second hollow part 224, and the second preset shape is an irregular shape with multiple second hollow parts 224. Through such planning and design of the light bar area 20, the space design on the glass waste is made more compact, the area of the non-use area can be effectively reduced, and the waste of materials can be reduced, thereby significantly improving the utilization rate of the glass waste. Similarly, the distance between adjacent first regions 21 embedded in the same second region 22 and the distance between adjacent second regions 22 are both equal to the preset distance. Thus, in the subsequent cutting process, it can be ensured that the cutting process does not require readjustment of the process parameters due to directional problems, so as to ensure the cutting efficiency.

[0075] Please refer to Figure 8 , Figure 8 It is a schematic diagram of the regional division structure of the large glass plate provided by the fifth embodiment of the present application. Different from the fourth embodiment, in this embodiment, the first preset shape is square, the shape of the second hollow part 224 is the same as the first preset shape, multiple first regions 21 are equally spaced and embedded in the second hollow part 224, and the second preset shape is a regular shape with multiple second hollow parts 224.

[0076] Please refer to Figure 9 , Figure 9 It is a schematic diagram of the regional division structure of the large glass plate provided by the sixth embodiment of the present application. Different from the fourth embodiment, in this embodiment, the first preset shape is a "cross" shape, the shape of the second hollow part 224 is the same as the first preset shape, multiple first regions 21 are equally spaced and embedded in the second hollow part 224, and the second preset shape is an irregular shape with multiple second hollow parts 224.

[0077] In a specific embodiment, the first regions 21 can be distributed in a matrix on the glass waste, and the second regions 22 can be arranged at the positions between adjacent first regions 21 to be spliced with the first regions 21, so as to reduce the area of the non-use area on the glass waste and reduce the waste of materials, thereby significantly improving the utilization rate of the glass waste. Specifically, the number of rows and columns of the first regions 21 can be determined by the shape and size of the glass waste, the shape and size of the first regions 21, and the shape and size of the second regions 22.

[0078] Please refer to Figure 10 , Figure 10It is a schematic diagram of the regional division structure of a large glass plate provided by the seventh embodiment of the present application. In this embodiment, the first preset shape is a "cross" shape, and the first regions 21 are distributed in a matrix on the glass remnant; the second preset shape is a strip-shaped rectangle, and the second regions 22 are arranged between adjacent first regions 21 and extend in the horizontal direction to be spliced with the first regions 21, making the connection between the first regions 21 and the second regions 22 more compact, reducing the area of the non-usage region on the glass remnant, reducing material waste, and thus significantly improving the utilization rate of the glass remnant; the second regions 22 may also be located between adjacent first regions 21 and extend in the vertical direction. Of course, in other embodiments, the second preset shape may also be set to a square, polygon, circle or other shapes, and the second regions 22 are made adjacent to the first regions 21 to make full use of the glass remnant and reduce material waste, which can be specifically set according to actual needs and will not be specifically limited herein.

[0079] Please refer to Figure 11 , Figure 11 It is a schematic flowchart of step S4 provided by an embodiment of the present application. In this embodiment, in the step of cutting the glass remnant after the area planning is completed, since the first regions 21 and the second regions 22 are spliced with each other, the distance between the first regions 21 and the second regions 22 is relatively small, and even the first regions 21 are connected to the second regions 22. To avoid damaging the adjacent first light bars 210 or second light bars 220 during the cutting process, step S4 may specifically include the following steps:

[0080] S41: Cut the glass remnant along the edge line of the first region 21 by means of laser ablation, so that the first light bar 210 has the first preset shape.

[0081] S42: Cut the glass remnant along the edge line of the second region 22 by means of ordinary cutting, so that the second light bar 220 has the second preset shape.

[0082] By the above method, first use the laser ablation cutting method to cut the first light bar 210 formed by the first region 21, with higher cutting accuracy, and it can accurately cut along the edge line of the first region 21, thus avoiding accidentally damaging the first light bar 210 or the second light bar 220 due to insufficient accuracy to ensure the product yield. Then use the ordinary cutting method to cut the second light bar 220 formed by the second region 22, so that the second light bar 220 has the second preset shape.

[0083] It is easy to understand that in the above-mentioned third embodiment, a third light bar is also formed on the glass residue. Then, when cutting, the first light bar 210 and the second light bar 220 can both be cut by laser ablation to control the cutting accuracy and avoid accidentally damaging the first light bar 210, the second light bar 220, or the third light bar during the cutting process due to insufficient accuracy. Finally, the third light bar formed in the third area 23 can be cut by an ordinary cutting method, thereby ensuring that the light bar is not damaged and improving the product yield.

[0084] Specifically, as described above, step S41 and step S42 can be before step S3 or after step S3, which can be specifically determined according to the packaging process of the light-emitting unit, and there is no limitation on this.

[0085] Please refer to Figure 12 , Figure 12 FIG. 100 is a schematic structural diagram of a backlight module 100 provided by an embodiment of the present application. In this embodiment, a backlight module 100 is provided, and the backlight module 100 is used to provide a backlight source for a display panel, and the display panel can be a liquid crystal panel or an electrophoretic panel, etc., which requires a backlight source.

[0086] Specifically, the backlight module 100 includes a back plate 101, a lamp board 102, a light guide plate 103, and an optical film 104. Among them, the lamp board 102 is formed by combining light bars, or can also be formed by a single light bar alone for emitting light, so that the backlight module 100 can provide a uniform surface light source. Specifically, the light bar can be obtained by the preparation method of the light bar involved in the above-mentioned implementation manner, and the specific structure and function of the light bar are the same as or similar to the specific structure and function involved in the above-mentioned embodiment, and the same technical effects can be achieved. For details, reference can be made to the above introduction, and details will not be repeated here.

[0087] In other embodiments, the backlight module 100 can also be a side-in type backlight module, and its lamp board 102 is arranged on the side of the light guide plate 103. The lamp board 102 includes a light bar, and the light bar can be obtained by the preparation method of the light bar involved in the above-mentioned implementation manner. The specific structure and function of the light bar are the same as or similar to the specific structure and function involved in the above-mentioned embodiment, and the same technical effects can be achieved. For details, reference can be made to the above introduction, and details will not be repeated here.

[0088] The above are only the embodiments of the present application, and do not limit the patent protection scope of the present application. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present application, or directly or indirectly applied in other related technical fields, shall be included in the patent protection scope of the present application by the same token.

Claims

1. A method for preparing a light bar, characterized in that, Including: Providing glass remnants, where the glass remnants include the remaining part after the glass large plate is used to make the substrate of the display panel; Dividing the glass remnants into a plurality of first regions and second regions that are spliced with each other, where the first region has a first preset shape, and the second region has a second preset shape different from the first preset shape; Encapsulating light-emitting units in the first region and the second region to form a first light bar and a second light bar; Cutting the glass remnants respectively along the edge line of the first region and the edge line of the second region, so that the first light bar has the first preset shape and the second light bar has the second preset shape.

2. The preparation method according to claim 1, characterized in that, The first preset shape is a rectangle, and a plurality of the first regions are arranged in parallel and at intervals. The second region has a plurality of first hollow parts, and a plurality of the first regions are embedded in the first hollow parts. The second preset shape is a rectangle with a plurality of the first hollow parts.

3. The preparation method according to claim 2, wherein The distance between adjacent second regions, the distance between adjacent first regions embedded in the second region, the distance between the edge line of the first region and the edge line of the second region, and the distance between the edge line of the second region and the outer edge of the glass remnants are all equal to a preset distance.

4. The preparation method according to claim 3, wherein, The step of encapsulating the light-emitting units in the first region and the second region to form a first light bar and a second light bar specifically includes: Encapsulating a first light-emitting unit in the first region to form the first light bar; Encapsulating a second light-emitting unit and a third light-emitting unit in the second region to form the second light bar; wherein, the second light-emitting unit is encapsulated at a position between adjacent first hollow parts, and the third light-emitting unit is encapsulated at the edge position of the second region.

5. The preparation method according to claim 3, characterized in that, In the step of dividing the glass remnants into a plurality of first regions and second regions that are spliced with each other, it further includes: Dividing the glass remnants into a third region that is spliced with the first region and the second region. The third region is located in the edge region of the glass remnants; the third region has a third preset shape, and the third preset shape is a rectangle with a length and / or width different from the first preset shape, and the distance between the edge line of the third preset shape and other adjacent regions is equal to the preset distance.

6. The preparation method according to claim 1, characterized in that, The first preset shape is a circle, a square, a cross, or an irregular shape. The second region has a plurality of second hollow parts, and the shape of the second hollow parts is the same as the first preset shape. A plurality of the first regions are embedded in the second hollow parts at equal intervals. The second preset shape is a regular or irregular shape with a plurality of the second hollow parts.

7. The preparation method according to claim 6, wherein The distance between adjacent first regions embedded in the same second region and the distance between adjacent second regions are both equal to the preset distance.

8. The preparation method according to claim 1, characterized in that, The first regions are distributed in a matrix on the glass remnants, and the second region is arranged at a position between adjacent first regions to be spliced with the first regions.

9. The preparation method according to claim 1, characterized in that, The step of cutting the glass remnants respectively along the edge line of the first region and the edge line of the second region includes: Cut the glass residue by means of laser according to the edge line of the first region, so that the first light bar has the first preset shape; Cut the glass residue by means of ordinary cutting according to the edge line of the second region, so that the second light bar has the second preset shape.

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