Rubber iron structure for improving friction white dots, backlight source and mobile terminal

By setting a sunken platform on the iron frame back plate of the backlight source, the problem of foreign particle friction caused by the compact structure of the backlight source is solved, the effect of reducing white spot defects is achieved, and the reliability of the display device is improved.

CN223377570UActive Publication Date: 2025-09-23SHENZHEN SOUTH POLE OPTOELECTRONICS TECH
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Patent Information

Application Number
CN202422707802.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-06
Publication Date
2025-09-23
Estimated Expiration
2034-11-06

AI Technical Summary

Technical Problem

Due to the compact structure of existing backlight sources, foreign particles may rub against the light guide plate during assembly, transportation or testing, resulting in white spot defects and affecting the display effect.

Method used

A sunken platform is set on the iron frame back plate of the iron frame so that its platform height is lower than the load-bearing platform to form a space for accommodating foreign particles to avoid friction between foreign particles and the light guide plate. A glue-iron structure design is used to fix the light guide plate and optical film.

Benefits of technology

It effectively avoids scratches on the light guide plate, reduces the probability of white spots on the backlight source, and improves the reliability of the display device.

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Abstract

The utility model relates to the technical field of backlight sources, and particularly provides a rubber iron structure for improving friction white dots, a backlight source and a mobile terminal.The rubber iron structure comprises an iron frame, and the iron frame comprises an iron frame back plate and side iron plates; the iron frame back plate is provided with a bearing platform connected with the side iron plates and a sinking platform located in the bearing platform, the platform height of the sinking platform is lower than that of the bearing platform, the bearing platform is used for bearing the light guide plate, and the sinking platform is used for bearing foreign matter particles on the light guide plate. According to the plastic iron structure, the sinking platform is arranged on the iron frame back plate of the iron frame, the platform height of the sinking platform is controlled to be lower than the platform height of the bearing platform, the bearing platform bears the light guide plate, and the containing space used for containing foreign matter particles is formed between the light guide plate and the sinking platform, so that in the backlight source assembling, transporting or experimenting process, the foreign matter particles can be prevented from being damaged. Foreign matter particles on the area, corresponding to the sinking platform, of the light guide plate fall onto the sinking platform, and the probability that white spots of the backlight source are poor is reduced.
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Description

Technical Field

[0001] The present application relates to the technical field of backlight sources, and in particular to a rubber-iron structure, a backlight source, and a mobile terminal for improving friction white spots. Background Art

[0002] Driven by the market demand for the development of ultra-thin displays for medium and large-sized terminal devices, the thickness design and material selection of current backlight products have reached the ultra-thin limit, which can basically meet customers' ultra-thin requirements. However, due to the compact thickness and structural design of the backlight, if there are small foreign objects inside the backlight, during the assembly, transportation or testing of the backlight, the foreign particles are likely to rub against the light guide plate, scratching the light guide plate and causing white spots, resulting in poor white spots in the backlight.

[0003] Therefore, the existing technology has defects and deficiencies and needs further improvement and development. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this application is to provide a glue-iron structure, backlight source and mobile terminal that improve friction white spots, aiming to solve the problem in the existing technology that due to the compact structure of the backlight source, foreign particles are easily rubbed against the light guide plate during assembly, transportation or experiment, scratching the light guide plate to produce white spots, resulting in poor white spots in the backlight source.

[0005] The technical solution adopted by the present application to solve the technical problem is as follows: a rubber-iron structure for improving friction white spots, comprising:

[0006] An iron frame, comprising an iron frame back plate and side iron plates;

[0007] The iron frame back plate has a bearing platform connected to the side iron plate, and a sinking platform located inside the bearing platform. The platform height of the sinking platform is lower than the platform height of the bearing platform, and the sinking platform is used to bear foreign particles on the light guide plate.

[0008] Optionally, the platform height of the sinking platform and the platform height of the supporting platform are set to be 0.05-0.15 mm.

[0009] Optionally, the area ratio of the sinking platform to the carrying platform is set to 0.08-0.12.

[0010] Optionally, the iron frame further includes a transition connection portion, which is connected between the sinking platform and the bearing platform, and the transition connection portion is configured as a plane structure or an arc transition structure.

[0011] Optionally, when the transition connection portion is arranged in a planar structure, the transition connection portion is arranged at an angle of 90°-120° with the sinking platform.

[0012] Optionally, a plurality of reinforcing ribs are provided on the sinking platform.

[0013] Optionally, the glue-iron structure further includes a glue frame, and the glue frame is arranged on the inner surface of the side iron plate.

[0014] Another technical solution adopted by the present application to solve the technical problem is as follows: a backlight source, which includes the above-mentioned glue-iron structure for improving friction white spots.

[0015] Optionally, the backlight source further includes a light guide plate, the light guide plate is carried on the carrying platform, and the light guide plate is gap-fitted with the sinking platform.

[0016] Another technical solution adopted by the present application to solve the technical problem is as follows: a mobile terminal, which includes the backlight source as described above.

[0017] Beneficial effects:

[0018] The present application provides a glue-iron structure, a backlight source and a mobile terminal for improving friction white spots. The glue-iron structure sets a sinking platform on the back plate of the iron frame, and controls the platform height of the sinking platform to be lower than the platform height of the carrying platform, so that the carrying platform can carry the light guide plate, and then form a accommodating space for accommodating foreign particles between the light guide plate and the sinking platform. Then, during the assembly, transportation or experiment of the backlight source, foreign particles on the area of ​​the light guide plate corresponding to the sinking platform can fall onto the sinking platform, thereby avoiding friction between the foreign particles and the light guide plate, avoiding scratches on the light guide plate to cause white spot defects, and reducing the probability of causing white spots in the backlight source. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a top view schematic diagram of the rubber-iron structure for improving friction white spots provided in this application;

[0020] Figure 2 This application provides Figure 1 Schematic cross-sectional view along the Ⅰ-Ⅰ direction;

[0021] Figure 3 This application provides Figure 2 A magnified schematic diagram of part A in FIG;

[0022] Figure 4 This application provides Figure 3 Schematic diagram from another perspective;

[0023] Description of reference numerals:

[0024] 10. Glue-iron structure; 11. Iron frame; 12. Glue frame; 111. Iron frame back plate; 112. Side iron plate; 113. Transition connection part; 114. Reinforcement rib; 1111. Load-bearing platform; 1112. Sinking platform. DETAILED DESCRIPTION

[0025] To make the purpose, technical solutions and advantages of this application clearer and more explicit, the following further describes this application in detail with reference to the accompanying drawings and examples. It should be understood that the specific examples described herein are only used to explain this application and are not intended to limit this application.

[0026] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, "multiple" means two or more.

[0027] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0028] Please refer to Figures 1 to 4 In the first embodiment of the present application, a glue-iron structure 10 for improving friction white spots is provided. The glue-iron structure 10 includes an iron frame 11, and the iron frame 11 includes an iron frame back plate 111 and a side iron plate 112; the iron frame back plate 111 has a bearing platform 1111 and a sinking platform 1112, and the bearing platform 1111 is located between the side iron plate 112 and the sinking platform 1112, and the sinking platform 1112 is located inside the bearing platform 1111, that is, the bearing platform 1111 is arranged around the outer periphery of the sinking platform 1112, and the platform height of the sinking platform 1112 is lower than the platform height of the bearing platform 1111, and the sinking platform 1112 is used to bear foreign particles on the light guide plate.

[0029] It can be understood that the glue-iron structure 10 sets a sinking platform 1112 on the iron frame back plate 111 of the iron frame 11, and controls the platform height of the sinking platform 1112 to be lower than the platform height of the carrying platform 1111, so that the carrying platform 1111 can carry the light guide plate, and then form a accommodating space for accommodating foreign particles between the light guide plate and the sinking platform 1112, and then during the assembly, transportation or experiment of the backlight source, foreign particles on the area of ​​the light guide plate corresponding to the sinking platform 1112 can fall onto the sinking platform 1112, thereby avoiding friction between foreign particles and the light guide plate, avoiding scratches on the light guide plate to cause white spot defects, and reducing the probability of causing white spots in the backlight source.

[0030] In some embodiments, the height of the sinking platform 1112 is set to be 0.05-0.15 mm above the height of the supporting platform 1111. This ensures that there is sufficient space between the light guide plate and the sinking platform 1112 to accommodate foreign particles, while also ensuring that the rubber-iron structure 10 has sufficient structural strength and a relatively thin thickness.

[0031] In some embodiments, the area ratio of the sunken platform 1112 to the supporting platform 1111 is set to 0.08-0.12, thereby ensuring that there is sufficient space between the light guide plate and the sunken platform 1112 to accommodate foreign particles, while also ensuring that the glue-iron structure 10 has sufficient structural strength and a relatively thin thickness.

[0032] In some embodiments, the iron frame 11 further includes a transition portion 113, which is connected between the sinking platform 1112 and the supporting platform 1111. The transition portion 113 is configured as a planar structure or an arc transition structure. By providing the transition portion 113, the structural strength of the glue-iron structure 10 can be effectively guaranteed.

[0033] In some embodiments, when the transition connection portion 113 is arranged in a planar structure, the transition connection portion 113 and the sinking platform 1112 are arranged at an angle of 90°-120°, thereby effectively ensuring the structural strength of the glue-iron structure 10.

[0034] In some embodiments, a plurality of reinforcing ribs 114 are provided on the sinking platform 1112, thereby ensuring that there is sufficient space between the light guide plate and the sinking platform 1112 to accommodate foreign particles, and ensuring that the glue-iron structure 10 has sufficient structural strength and a relatively thin thickness.

[0035] In some embodiments, the adhesive iron structure 10 further includes an adhesive frame 12, which is disposed on the inner surface of the side iron plate 112. The adhesive frame 12 is located on the inner surface of the side iron plate 112 of the adhesive iron structure 10, thereby effectively fixing the light guide plate and the optical film.

[0036] The second embodiment of the present application further provides a backlight source, which includes the adhesive-iron structure 10 for improving friction white spots as described in the first embodiment of the present application. This can reduce the probability of foreign particles rubbing against the light guide plate, avoid scratches on the light guide plate causing white spot defects, and reduce the probability of white spots in the backlight source.

[0037] Furthermore, the backlight source further includes a light guide plate, which is carried on the carrying platform 1111 and has a clearance fit with the sinking platform 1112. This allows foreign particles on the area of ​​the light guide plate corresponding to the sinking platform 1112 to fall onto the sinking platform 1112, thereby preventing foreign particles from rubbing against the light guide plate, preventing scratches on the light guide plate and causing white spot defects, thereby reducing the probability of white spots in the backlight source.

[0038] The third embodiment of the present application further provides a mobile terminal comprising the backlight source as described in the second embodiment of the present application. This reduces the probability of foreign particles rubbing against the light guide plate in display devices of medium-to-large mobile terminals (such as tablets, mobile phones, or computers), thus preventing scratches on the light guide plate that may cause white spot defects and reducing the probability of backlight white spots.

[0039] In summary, the present application provides a glue-iron structure, a backlight source, and a mobile terminal for improving friction white spots. A glue-iron structure for improving friction white spots includes: an iron frame, the iron frame including an iron frame back plate and side iron plates; the iron frame back plate has a bearing platform connected to the side iron plates, and a sinking platform located within the bearing platform, the platform height of the sinking platform is lower than the platform height of the bearing platform, the bearing platform is used to bear the light guide plate, and the sinking platform is used to bear foreign particles on the light guide plate. The glue-iron structure is configured by setting a sinking platform on the iron frame back plate of the iron frame and controlling the platform height of the sinking platform to be lower than the platform height of the bearing platform, so that the light guide plate can be carried by the bearing platform, and a accommodating space for accommodating foreign particles is formed between the light guide plate and the sinking platform, so that during the assembly, transportation, or experiment of the backlight source, foreign particles on the area of ​​the light guide plate corresponding to the sinking platform can fall onto the sinking platform, thereby avoiding friction between the foreign particles and the light guide plate, avoiding scratches on the light guide plate to cause white spot defects, and reducing the probability of causing white spots in the backlight source.

[0040] It should be understood that the application of this application is not limited to the above examples. For ordinary technicians in this field, they can make improvements or changes based on the above description. All these improvements and changes should fall within the scope of protection of the claims attached to this application.

Claims

1. A rubber-iron structure for improving friction white spots, characterized in that: include: An iron frame, comprising an iron frame back plate and side iron plates; The iron frame back plate has a bearing platform connected to the side iron plate, and a sinking platform located inside the bearing platform. The platform height of the sinking platform is lower than the platform height of the bearing platform. The bearing platform is used to bear the light guide plate, and the sinking platform is used to bear foreign particles on the light guide plate.

2. The rubber-iron structure for improving friction white spots according to claim 1, characterized in that: The platform height of the sinking platform and the platform height of the supporting platform are set to be 0.05-0.15 mm.

3. The rubber-iron structure for improving friction white spots according to claim 1, characterized in that: The area ratio of the sinking platform to the carrying platform is set to 0.08-0.

12.

4. The rubber-iron structure for improving friction white spots according to claim 1, characterized in that: The iron frame further includes a transition connection portion, which is connected between the sinking platform and the bearing platform. The transition connection portion is configured as a plane structure or an arc transition structure.

5. The rubber-iron structure for improving friction white spots according to claim 4, characterized in that: When the transition connection portion is arranged in a planar structure, the transition connection portion and the sinking platform are arranged at an angle of 90°-120°.

6. The rubber-iron structure for improving friction white spots according to claim 1, characterized in that: The sinking platform is provided with a plurality of reinforcing ribs.

7. The rubber-iron structure for improving friction white spots according to any one of claims 1 to 6, characterized in that: The glue iron structure further includes a glue frame, which is arranged on the inner surface of the side iron plate.

8. A backlight source, characterized in that: The invention comprises the rubber-iron structure for improving friction white spots as described in any one of claims 1 to 7.

9. The backlight source according to claim 8, wherein: The backlight source further includes a light guide plate, which is carried on the carrying platform, and the light guide plate is gap-matched with the sinking platform.

10. A mobile terminal, characterized in that: Comprising the backlight source according to any one of claims 8 to 9.