Backlight module

Abstract

The utility model discloses a backlight module. The backlight module comprises a backlight unit and a display screen unit, the backlight unit comprises an iron stand, and a mounting groove is formed in the iron stand; the display screen unit is positioned and mounted in the mounting groove, and the mounting groove is used for accommodating the display screen unit; the iron stand is further provided with a lightening part, and the weight of the iron stand can be lightened through the lightening part, so that part of the weight of the iron stand is removed under the condition that the strength of the iron stand is not changed.

Description

Technical Field

[0001] The utility model relates to the field of display screens, and in particular to a backlight module. Background Art

[0002] Structurally, a display module usually consists of a backlight, a display, and an FPC. The weight of the display module is mainly concentrated on the display and backlight.

[0003] A representative example is the patent document with application number CN202123242833.3, which discloses a backlight module and a display screen module. When the LED lamp beads need to be replaced, the backlight FPC part located in the gap is pulled out from the opening of the side wall of the frame, and then the backlight FPC part bonded to the bottom wall of the frame is torn off, and then the backlight FPC is replaced. When replacing the backlight FPC, the backlight FPC part without the LED lamp beads is bonded to the bottom wall of the frame, so that the backlight FPC part with the LED lamp beads is extended into the gap from the opening of the side wall of the frame. In this way, when replacing the backlight FPC, the light guide plate and the optical film layer will not be damaged, so that other components of the backlight module can continue to be used, reducing resource waste; and the structure is simple, which is convenient for processing and assembly.

[0004] Patent document CN202321785278.5 discloses a corrosion-resistant LCD display module. By providing a conductive shielding layer between the LCD screen and the capacitive screen, with the conductive surface of the shielding layer aligned with the LCD screen, it effectively shields electronic interference and ensures signal transmission. A corrosion-resistant composite coating is provided on the panel support frame, providing excellent corrosion resistance and effectively preventing corrosion of the panel support frame. The provision of snap-on connecting strips, lower mounting slots, connecting posts, and PCB adhesive tape facilitates quick installation and docking of the square outer shell, and facilitates subsequent disassembly and removal, making it very convenient.

[0005] The above two patent documents disclose the structure of the display module, and also solve the problems of replacing the FPC on the backlight and the oxidation corrosion of part of the module structure during use. Although the above two patent documents have various advantages, they still have limitations in actual use:

[0006] Because when people use products such as display screens, they will use them for a long time, which means that their weight cannot be too heavy, especially some products that need to be carried (for example, mobile phones and watches). Once they are too heavy, the carrying time will be shortened. That is, during long-term use, holding the product will cause fatigue, affecting the continuous use of the device. Utility Model Content

[0007] Based on this, it is necessary to provide a backlight module for the technical problem raised in the above background technology. When people use products such as display screens, they will use them for a long time, which means that their weight cannot be too heavy, especially for some products that need to be carried (for example, mobile phones and watches). Once they are large, the carrying time will be shortened, that is, during long-term use, holding the product will cause fatigue, affecting the continuous use of the equipment.

[0008] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0009] A backlight module comprises a backlight unit and a display screen unit;

[0010] The backlight unit includes an iron frame, and a mounting slot is provided on the iron frame;

[0011] The display screen unit is positioned and installed in the installation slot, and the installation slot is used to accommodate the display screen unit;

[0012] The iron frame is also provided with a lightening portion.

[0013] Furthermore, the lightening portion is a plurality of grooves, and the grooves are arranged on a surface of the iron frame opposite to the installation groove or at least on one side surface among the four sides of the iron frame.

[0014] Furthermore, when the groove is provided on the iron frame and on a surface opposite to the installation groove, there are four grooves in total, and all of them are in a quadrilateral structure.

[0015] Furthermore, the depth of the groove is no greater than the depth from the bottom of the installation groove to the side surface of the iron frame away from the installation groove.

[0016] Furthermore, there is a gap between adjacent grooves, and the gap serves as a reinforcement part for maintaining the bending strength of the surface of the iron frame, and the reinforcement part is cross-shaped.

[0017] Furthermore, there is a space between the edge of the groove and the edge of the iron frame to ensure that the edge of the iron frame has sufficient anti-bending strength.

[0018] Furthermore, when the groove is provided on one of the four side surfaces of the iron frame, at least two grooves are provided on the side surface of the iron frame.

[0019] Furthermore, the longitudinal section of the groove is quadrilateral, and the groove is at least half of the side of the iron frame width.

[0020] Furthermore, there are reinforcement strips between adjacent grooves to ensure that the inner side walls of the grooves have sufficient anti-bending strength.

[0021] Furthermore, the longitudinal section of the reinforcement strip is quadrilateral, equilateral trapezoid or arc-shaped.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] An analysis of the display structure shows that the weight is concentrated on the glass of the display. The thickness of the glass substrate is usually 0.5mm, so the acid etching thinning process can be used to thin the glass thickness to 0.2~0.3mm to reduce the weight of the display.

[0024] An analysis of the backlight structure reveals that it consists of a plastic frame, an iron frame, LEDs, and various diaphragms. The weight is concentrated in the iron frame, which protects and supports the backlight. Therefore, selective slots can be added to reduce the weight. Typically, the display's FPC is bent and fixed to the back of the module. The portion of the backlight frame outside the FPC area can be slotted and undercut. To ensure structural strength, the slots are located 4-5 mm from the outer edge of the module, with connecting bridges 4-5 mm wide within the slots. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A schematic diagram of the longitudinal cross-section structure of a backlight unit provided by the prior art;

[0026] Figure 2 This is a schematic diagram of the longitudinal cross-section structure of the display screen unit provided by the present invention;

[0027] Figure 3 This is a schematic structural diagram of a groove provided by the present invention, which is arranged on an iron frame and on a surface opposite to the mounting groove;

[0028] Figure 4 This is a structural schematic diagram of the groove provided by the utility model being arranged on the side of the iron frame.

[0029] The markings in the figure are as follows:

[0030] 1. Backlight unit; 2. Display unit; 3. Iron frame; 4. Mounting slot; 5. Groove; 6. Reinforcement part; 7. Empty area; 8. Reinforcement strip. DETAILED DESCRIPTION

[0031] In order to help those skilled in the art better understand the present invention, the following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0032] As described in the background technology, when people use products such as display screens, they will use them for a long time, which means that their weight cannot be too heavy, especially for some products that need to be carried (for example, mobile phones and watches). Once they are too heavy, the carrying time will be shortened, that is, during long-term use, people will feel tired when holding the product, which will affect the continuous use of the device.

[0033] In order to solve this technical problem, the utility model provides a backlight module.

[0034] Specifically, please refer to Figure 2-Figure 4 , the backlight module includes a backlight unit 1 and a display unit 2;

[0035] The backlight unit 1 includes an iron frame 3, and a mounting slot 4 is formed on the iron frame 3;

[0036] The display screen unit 2 is positioned and installed in the installation groove 4, and the installation groove 4 is used to accommodate the display screen unit 2; the iron frame 3 is also provided with a lightening portion.

[0037] The utility model can reduce the weight of the iron frame 3 through the lightening portion, so that the iron frame 3 can remove part of its mass without changing its own strength.

[0038] It should be noted that: according to Figure 1 and Figure 2 It can be seen that the display screen unit 2 is arranged from right to left in sequence as a large glass polarizer, a large glass, a small glass, and a small glass polarizer. In order to further reduce the overall weight, the thickness of the large glass substrate is usually 0.5 mm, so the acid etching thinning process can be used to thin the glass thickness to 0.2~0.3 mm to reduce the weight of the display screen.

[0039] That is, compared with the prior art, the present application reduces the thickness of the large piece of glass in the display screen unit 2 to 0.2-0.3 mm.

[0040] In order to enable those skilled in the art to better understand the solution of the present invention, the technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0041] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions therein can be combined with each other.

[0042] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0043] Please refer to Figure 2-Figure 4 , the backlight module includes a backlight unit 1 and a display unit 2;

[0044] The backlight unit 1 includes an iron frame 3, and a mounting slot 4 is formed on the iron frame 3;

[0045] The display screen unit 2 is positioned and installed in the installation groove 4, and the installation groove 4 is used to accommodate the display screen unit 2; the iron frame 3 is also provided with a lightening portion.

[0046] The utility model can reduce the weight of the iron frame 3 through the lightening portion, so that the iron frame 3 can remove part of its mass without changing its own strength.

[0047] Secondly, according to Figure 2 It can be seen that the entire display screen unit 2 is arranged from right to left in sequence as a large glass polarizer, a large glass, a small glass, and a small glass polarizer. In order to further reduce the overall weight, the thickness of the large glass substrate is usually 0.5 mm, so the acid etching thinning process can be used to thin the glass thickness to 0.2~0.3 mm to reduce the weight of the display screen.

[0048] In some specific embodiments, the lightening portion is a plurality of grooves 5 , which are provided on a surface of the iron frame 3 opposite to the mounting groove 4 or at least on one of the four sides of the iron frame 3 .

[0049] With the above design, the iron frame 3 can be provided with grooves 5 on the surface or side to adapt to different usage conditions.

[0050] The backlight module provided in Example 1 is further optimized, and the backlight module includes a backlight unit 1 and a display unit 2;

[0051] The backlight unit 1 includes an iron frame 3, and a mounting slot 4 is formed on the iron frame 3;

[0052] The display screen unit 2 is positioned and installed in the installation groove 4, and the installation groove 4 is used to accommodate the display screen unit 2; the iron frame 3 is also provided with a lightening portion.

[0053] The utility model can reduce the weight of the iron frame 3 through the lightening portion, so that the iron frame 3 can remove part of its mass without changing its own strength.

[0054] Secondly, according to Figure 2 It can be seen that the entire display screen unit 2 is arranged from right to left in sequence as a large glass polarizer, a large glass, a small glass, and a small glass polarizer. In order to further reduce the overall weight, the thickness of the large glass substrate is usually 0.5 mm, so the acid etching thinning process can be used to thin the glass thickness to 0.2~0.3 mm to reduce the weight of the display screen.

[0055] When the groove 5 is provided on the iron frame 3 and on a surface opposite to the mounting groove 4 , four grooves 5 are provided in total, and all of them are in a quadrilateral structure.

[0056] When the use environment does not require too high strength, the groove 5 can be provided on the iron frame 3 on a side surface opposite to the mounting groove 4 .

[0057] In some specific embodiments, the depth of the groove 5 is no greater than the distance from the bottom of the mounting groove 4 to the surface of the iron frame 3 away from the mounting groove 4. With this design, the weight of the iron frame 3 can be reduced by the groove 5. At the same time, the depth of the groove 5 is limited to prevent the groove 5 from becoming a through hole in the iron frame 3, which would allow dust to easily enter the mounting groove 4.

[0058] In some specific embodiments, there is a gap between adjacent grooves 5, and the gap serves as a reinforcing portion 6 for maintaining the bending strength of the surface of the iron frame 3, and the reinforcing portion 6 is cross-shaped.

[0059] Since a plurality of grooves 5 are provided on the iron frame 3 , in order to prevent the iron frame 3 from bending, a cross-shaped reinforcement portion 6 is provided to maintain the surface bending strength of the iron frame 3 .

[0060] In some specific embodiments, there is a blank area 7 between the edge of the groove 5 and the edge of the iron frame 3 to ensure that the edge of the iron frame 3 has sufficient anti-bending strength.

[0061] Although the reinforcing portion 6 can maintain the surface bending strength of the iron frame 3, if the edge of the iron frame 3 is close to the groove 5, it is easy to crack. Therefore, the empty space 7 is used to ensure that the edge of the iron frame 3 has sufficient bending strength.

[0062] The backlight module provided in Example 1 is further optimized, and the backlight module includes a backlight unit 1 and a display unit 2;

[0063] The backlight unit 1 includes an iron frame 3, and a mounting slot 4 is formed on the iron frame 3;

[0064] The display screen unit 2 is positioned and installed in the installation groove 4, and the installation groove 4 is used to accommodate the display screen unit 2; the iron frame 3 is also provided with a lightening portion.

[0065] The utility model can reduce the weight of the iron frame 3 through the lightening portion, so that the iron frame 3 can remove part of its mass without changing its own strength.

[0066] Secondly, according to Figure 2 It can be seen that the entire display screen unit 2 is arranged from right to left in sequence as a large glass polarizer, a large glass, a small glass, and a small glass polarizer. In order to further reduce the overall weight, the thickness of the large glass substrate is usually 0.5 mm, so the acid etching thinning process can be used to thin the glass thickness to 0.2~0.3 mm to reduce the weight of the display screen.

[0067] When the groove 5 is provided on one of the four sides of the iron frame 3 , at least two grooves 5 are provided on the side of the iron frame 3 .

[0068] When encountering a situation with greater strength requirements, that is, the requirements for certain strength must be met while reducing the weight, the groove 5 is set on the four sides of the iron frame 3. In order to reduce the difficulty of construction, it is preferably set on one of the four sides of the iron frame 3.

[0069] In some specific embodiments, the longitudinal section of the groove 5 is quadrilateral, and the groove 5 is at least half of the width of the side of the iron frame 3 .

[0070] By limiting the depth of the groove 5 set on the side of the iron frame 3, when the groove 5 is set along the length direction of the iron frame 3, the depth of the groove 5 is between passing through the entire iron frame 3 and passing through half of the length direction of the iron frame 3 (the depth set in the width direction is the same).

[0071] In some specific embodiments, there are reinforcement strips 8 between adjacent grooves 5 to ensure that the inner side walls of the grooves 5 have sufficient anti-bending strength.

[0072] Since there are multiple grooves 5, if all the grooves 5 are connected as one, it is easy for a large groove to appear on the side of the iron frame 3, and its strength cannot be guaranteed. Therefore, the reinforcement strip 8 is used to ensure that the inner side walls of the groove 5 have sufficient bending strength.

[0073] In some specific embodiments, the longitudinal section of the reinforcing strip 8 is quadrilateral, equilateral trapezoid or arc-shaped.

[0074] The design of the shape of the reinforcing strip 8 shows that the shape of the groove 5 does not have to be a quadrilateral, but can also be a prism or an arc. The quadrilateral is preferred because it is easy to process.

[0075] The use process of the backlight module provided by the present invention is as follows: the present invention can reduce the weight of the iron frame 3 through the lightening portion, so that the iron frame 3 can remove part of its mass without changing its own strength.

[0076] Secondly, according to Figure 2 It can be seen that the entire display screen unit 2 is arranged from right to left in sequence as a large glass polarizer, a large glass, a small glass, and a small glass polarizer. In order to further reduce the overall weight, the thickness of the large glass substrate is usually 0.5 mm, so the acid etching thinning process can be used to thin the glass thickness to 0.2~0.3 mm to reduce the weight of the display screen.

[0077] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0078] Obviously, the embodiments described above are only some of the embodiments of the present invention, rather than all of the embodiments. The preferred embodiments of the present invention are given in the accompanying drawings, but they do not limit the patent scope of the present invention. The present invention can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned specific embodiments, or to make equivalent replacements for some of the technical features therein. Any equivalent structure made using the contents of the present invention specification and the accompanying drawings, directly or indirectly used in other related technical fields, is also within the scope of protection of the present invention patent.

Claims

1. A backlight module, characterized in that: It comprises a backlight unit (1) and a display screen unit (2); The backlight unit (1) comprises an iron frame (3), and a mounting groove (4) is provided on the iron frame (3); The display screen unit (2) is positioned and installed in the installation groove (4), and the installation groove (4) is used to accommodate the display screen unit (2); The iron frame (3) is also provided with a lightening portion; The thickness of the glass substrate of the display screen unit (2) is 0.2-0.3 mm.

2. The backlight module according to claim 1, wherein: The lightening portion is a plurality of grooves (5), and the grooves (5) are arranged on a side surface of the iron frame (3) opposite to the mounting groove (4) or at least on one side surface among the surrounding side surfaces of the iron frame (3).

3. The backlight module according to claim 2, wherein: When the groove (5) is provided on the iron frame (3) and on a surface opposite to the mounting groove (4), a total of four grooves (5) are provided, and all of them are in a quadrilateral structure.

4. The backlight module according to claim 3, wherein: The depth of the groove (5) is no greater than the depth from the bottom of the mounting groove (4) to the side surface of the iron frame (3) away from the mounting groove (4).

5. The backlight module according to claim 4, wherein: There is a gap between adjacent grooves (5), and the gap serves as a reinforcing portion (6) for maintaining the surface bending strength of the iron frame (3), and the reinforcing portion (6) is cross-shaped.

6. The backlight module according to claim 5, wherein: There is a blank area (7) between the edge of the groove (5) and the edge of the iron frame (3), so as to ensure that the edge of the iron frame (3) has sufficient anti-bending strength.

7. The backlight module according to claim 2, wherein: When the groove (5) is provided on one of the four sides of the iron frame (3), at least two grooves (5) are provided on the side of the iron frame (3).

8. The backlight module according to claim 7, wherein: The longitudinal section of the groove (5) is quadrilateral, and the groove (5) is at least half of the width of the side of the iron frame (3).

9. The backlight module according to claim 5, wherein: Reinforcement strips (8) are provided between adjacent grooves (5) to ensure that the inner side walls of the grooves (5) have sufficient anti-bending strength.

10. The backlight module according to claim 9, wherein: The longitudinal section of the reinforcing strip (8) is in the shape of an equilateral trapezoid or an arc.

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