Backlight device, display module and electronic device

Abstract

The embodiment of the application provides a backlight device, a display module and an electronic device, and relates to the technical field of liquid crystal display modules, wherein the backlight device comprises a frame provided with a containing groove and a fixing portion; a light guide plate is arranged on one side of the frame; and a backlight strip is arranged on the other side of the frame, wherein the backlight strip comprises a connecting portion and a light emitting portion which are connected with each other, the connecting portion is connected with the fixing portion in a matched mode, and the light emitting portion is recessed into the containing groove and extends to one side of the light guide plate. In the backlight device, the display module and the electronic device provided by the embodiment of the application, the backlight strip is installed on the side of the frame which is far away from the light guide plate, wherein the frame is provided with the containing groove, so that the light emitting portion of the backlight strip can be recessed into the containing groove and extend to one side of the light guide plate. When the backlight strip is disassembled and replaced, the backlight strip can be disassembled and replaced from the other side of the frame which is far away from the light guide plate, and the light guide plate or other structures do not need to be disassembled, so that the disassembly efficiency of the backlight strip is improved.

Description

Technical Field

[0001] This application relates to the field of liquid crystal display module technology, and in particular to a backlight device, display module and electronic device. Background Technology

[0002] In related technologies, the light bar of the liquid crystal display module is usually located inside the backlight. When disassembling the light bar, other components need to be disassembled at the same time, resulting in poor rework feasibility and other materials are easily damaged, making them unusable. Utility Model Content

[0003] This application aims to address at least one of the technical problems existing in the prior art. To this end, this application proposes a backlight device, a display module, and electronic equipment that facilitates the replacement of light strips and improves disassembly and assembly efficiency.

[0004] An embodiment of the first aspect of this application provides a backlight device, comprising:

[0005] The frame is equipped with a receiving slot and a fixing part;

[0006] A light guide plate is disposed on one side of the frame;

[0007] A backlight strip is disposed on the other side of the frame. The backlight strip includes a connecting part and a light-emitting part that are connected to each other. The connecting part is connected to the fixing part. The light-emitting part is recessed into the receiving groove and extends to one side of the light guide plate.

[0008] Furthermore, the connecting portions are connected to both sides of the light-emitting part, and the two connecting portions are offset from the light-emitting part.

[0009] Furthermore, a flexible circuit board is connected between the connecting part and the light-emitting part.

[0010] Furthermore, the light-emitting part includes at least one light-emitting diode.

[0011] Furthermore, the fixing part is a fixing hole, the connecting part is provided with a connecting hole, the connecting hole and the fixing hole are aligned and fasteners are inserted through them.

[0012] Furthermore, the fastener is detachably connected to the connecting hole and the fixing hole.

[0013] Furthermore, the frame is an iron frame.

[0014] Furthermore, a reflective sheet is disposed between the light guide plate and the frame.

[0015] An embodiment of the second aspect of this application provides a display module including the backlight device as described above.

[0016] An embodiment of the third aspect of this application provides an electronic device including the display module as described above.

[0017] As can be seen from the above technical solutions, the embodiments of this application have at least the following beneficial effects:

[0018] In the backlight device, display module, and electronic device provided in this application embodiment, the backlight strip is installed on the side of the frame away from the light guide plate. The frame is provided with a receiving groove, allowing the light-emitting part of the backlight strip to be recessed into the receiving groove and extend to the side of the light guide plate, so that the light from the light-emitting part can be conducted through the light guide plate. When disassembling and replacing the backlight strip, the backlight plate can be removed and replaced from the other side of the frame away from the light guide plate without disassembling the light guide plate or other structures, thus improving the efficiency of backlight strip disassembly and assembly. Furthermore, when the backlight strip of the backlight device needs to be replaced, only the backlight strip needs to be replaced, which helps reduce costs. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of a single-sided backlit display module;

[0021] Figure 2 This is a schematic diagram of the structure of another display module with dual-sided backlighting;

[0022] Figure 3 This is a schematic diagram of the frame structure in one embodiment of this application;

[0023] Figure 4 This is a schematic diagram of the backlight strip structure in one embodiment of this application;

[0024] Figure 5 This is a schematic diagram of the structure of a display module according to one embodiment of this application.

[0025] Figure label:

[0026] 1. Iron frame; 2. Reflector; 3. Light guide plate; 4. LED;

[0027] 100. Frame; 110. Receiving groove; 120. Fixing part;

[0028] 200. Light guide plate;

[0029] 310. Connecting part; 311. Connecting hole; 320. Flexible circuit board; 330. Light-emitting part; 331. Light-emitting diode; 400. Reflector. Detailed Implementation

[0030] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0031] Single-sided backlighting LCD modules are commonly used in consumer products such as TVs, digital photo frames, tablets, and mobile phones. Figure 1 As shown, Figure 1 In the design, the light guide plate 3, reflector 2, and iron frame 1 are arranged sequentially, with LED 4 positioned on one side of the light guide plate 3. Dual-sided backlit LCD display modules are commonly used in VR and other head-mounted products, such as... Figure 2 As shown, Figure 2 In the middle, the light guide plate 3, the reflector 2 and the iron frame 1 are arranged in sequence, and the LED 4 is arranged on both sides of the light guide plate 3.

[0032] See Figure 2 As shown, Figure 2 The diagram shows a 5.5-inch VR glasses lens module. The module is divided into two separate display areas, with a light strip on each side serving as the backlight for the display. Because of the small size of the VR glasses lens module, damage to the light strips or even a single LED can cause display abnormalities. Furthermore, this type of module is difficult to repair; disassembly can easily damage the films on other components, rendering them unusable.

[0033] In view of this, this application proposes a backlight device, a display module, and an electronic device to effectively solve the aforementioned problems.

[0034] See Figures 3 to 5 As shown, an embodiment of the first aspect of this application discloses a backlight device, including a frame 100, a light guide plate 200, and a backlight strip.

[0035] Specifically, the frame 100 is provided with a receiving groove 110 and a fixing part 120; the light guide plate 200 is provided on one side of the frame 100; the backlight strip is provided on the other side of the frame 100, and the backlight strip includes a connecting part 310 and a light-emitting part 330 that are connected to each other. The connecting part 310 is connected to the fixing part 120, and the light-emitting part 330 is recessed into the receiving groove 110 and extends to one side of the light guide plate 200.

[0036] In the backlight device provided in this embodiment, the backlight strip is installed on the side of the frame 100 away from the light guide plate 200. The frame 100 is provided with a receiving groove 110, so that the light-emitting part 330 of the backlight strip can be recessed into the receiving groove 110 and extend to one side of the light guide plate 200. When disassembling and replacing the backlight strip, the backlight plate can be removed and replaced from the other side of the frame 100 away from the light guide plate 200 without disassembling the light guide plate 200 or other structures, thus improving the efficiency of backlight strip disassembly and assembly.

[0037] It is worth mentioning that the position of the receiving slot 110 can be set according to the position of the light guide plate 200; the number of receiving slots 110 can be set according to the number of backlight strips.

[0038] In some embodiments of this application, see Figure 4 Both sides of the light-emitting part 330 are connected to connecting parts 310, and the two connecting parts 310 are offset from the light-emitting part 330. In this embodiment, both ends of the receiving groove 110 are provided with fixing parts 120. One of the connecting parts 310 of the backlight strip is used to connect with the fixing part 120 at one end of the receiving groove 110, and the other connecting part 310 is used to cooperate with the fixing part 120 at the other end of the receiving groove 110. The light-emitting part 330 passes through the receiving groove 110 of the frame 100 and extends to the side of the light guide plate 200.

[0039] In some embodiments of this application, see Figure 4 A flexible circuit board 320 is connected between the connecting part 310 and the light-emitting part 330. The flexible circuit board 320 is used to provide power to the light-emitting part 330.

[0040] In some embodiments of this application, see Figure 4 The light-emitting part 330 includes at least one light-emitting diode 331 (LED), which extends into the receiving groove 110 of the frame 100 and extends to the side of the light guide plate 200.

[0041] It is understandable that the number of LEDs 331 can be set according to the needs of the display module, and is not limited here.

[0042] In one possible implementation, the light-emitting part 330 is provided with six light-emitting diodes 331, which are spaced apart.

[0043] In some embodiments of this application, see Figure 3 The fixing part 120 has a fixing hole, and the connecting part 310 has a connecting hole 311. Fasteners pass through the connecting hole 311 and the fixing hole. In this way, the backlight strip can be fixed to the frame 100 by fasteners. In practical applications, the fastener can be a screw.

[0044] Furthermore, the fasteners are detachably connected to the connecting hole 311 and the fixing hole. Thus, by loosening the fasteners, the backlight strip can be easily removed from the frame 100, improving assembly and disassembly efficiency.

[0045] In some embodiments of this application, see Figure 5 As shown, a reflector 400 is disposed between the light guide plate 200 and the frame 100.

[0046] In one possible implementation, the frame 100 is an iron frame used to support the light guide plate 200 and the reflector 400.

[0047] A second aspect of this application discloses a display module including the backlight device as described above. In the display module of this application embodiment, the backlight strip is easily removed from the frame 100, which improves disassembly and assembly efficiency. Furthermore, when the backlight strip is damaged, only the backlight strip needs to be replaced, thereby saving maintenance costs.

[0048] The third aspect of this application discloses an electronic device, including the display module as described above, which has all the technical effects of the aforementioned display module, and will not be repeated here.

[0049] The backlight device, display module, and electronic device of this application are described in detail below with reference to a specific embodiment. It should be noted that the following embodiment is merely an exemplary description and should not be construed as limiting the embodiments of this application.

[0050] See Figures 3 to 5 As shown, in this embodiment, the backlight bar can be installed independently from the receiving slot 110 on the frame 100. When the customer needs to change the optical parameters (brightness or chromaticity) of the backlight or liquid crystal display module, the corresponding backlight bar can be changed to alter the number of light-emitting diodes 331 or adjust their brightness and chromaticity. When the customer has special requirements for the LED lifespan of the backlight bar, a regular backlight bar can be replaced with a long-life backlight bar. In the above embodiments, only the backlight bar needs to be remanufactured and replaced.

[0051] On the other hand, when the backlight bar malfunctions, it can be easily replaced with a working one without requiring further processing of other components. In this embodiment, the backlight bar replacement is simple and highly interchangeable, which improves design and production efficiency and helps save costs.

[0052] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0053] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0054] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0055] In the description of this specification, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0056] It should be understood that although the steps in the flowcharts of the accompanying figures are shown sequentially as indicated by the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Moreover, at least some steps in the flowcharts of the accompanying figures may include multiple sub-steps or multiple stages. These sub-steps or stages are not necessarily completed at the same time, but can be executed at different times, and their execution order is not necessarily sequential, but can be performed alternately or in turn with other steps or at least some of the sub-steps or stages of other steps.

Claims

1. A backlight device, characterized in that, include: The frame is equipped with a receiving slot and a fixing part; A light guide plate is disposed on one side of the frame; A backlight strip is disposed on the other side of the frame. The backlight strip includes a connecting part and a light-emitting part that are connected to each other. The connecting part is connected to the fixing part. The light-emitting part is recessed into the receiving groove and extends to one side of the light guide plate.

2. The backlight device according to claim 1, characterized in that, Both sides of the light-emitting part are connected to the connecting part, and the two connecting parts are offset from the light-emitting part.

3. The backlight device according to claim 1 or 2, characterized in that, A flexible circuit board is connected between the connecting part and the light-emitting part.

4. The backlight device according to claim 1, characterized in that, The light-emitting part includes at least one light-emitting diode.

5. The backlight device according to claim 1, characterized in that, The fixing part is a fixing hole, the connecting part is provided with a connecting hole, the connecting hole and the fixing hole are aligned and fasteners are inserted through them.

6. The backlight device according to claim 5, characterized in that, The fastener is detachably connected to the connecting hole and the fixing hole.

7. The backlight device according to claim 1, characterized in that, The frame is an iron frame.

8. The backlight device according to claim 1, characterized in that, A reflective sheet is disposed between the light guide plate and the frame.

9. A display module, characterized in that, Includes the backlight device as described in any one of claims 1 to 8.

10. An electronic device, characterized in that, Includes the display module as described in claim 9.

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