Display device for replacing liquid crystal display module to dispense glue at blind hole of mobile phone camera

Abstract

The utility model belongs to the field of liquid crystal display modules, and provides a display device for replacing blind hole dispensing at a mobile phone camera of a liquid crystal display module, which comprises a rubber-iron frame integration, a reflector plate arranged on the upper side of the rubber-iron frame integration, a light guide plate arranged on the upper side of the reflector plate, and an optical diffusion plate arranged on the upper side of the light guide plate. The upper surface of the optical diffusion sheet is provided with a lower brightness enhancement sheet and an upper brightness enhancement sheet, the upper side of the upper brightness enhancement sheet is provided with a first shading adhesive tape, and the upper side of the first shading adhesive tape is provided with an annular shading adhesive tape and a lower polaroid; the liquid crystal module is applied to the design and production process of the liquid crystal module, so that the liquid crystal module and the backlight module can be assembled through a conventional assembly process, light leakage at the blind hole of the liquid crystal module can be avoided, and the performance or effect of devices such as a camera at the blind hole of the liquid crystal module cannot be influenced; the conventional two-time dispensing process of dispensing at the lower polaroid of the liquid crystal display module and dispensing at the root of the hole digging position of the backlight module can be replaced, and the production process of the liquid crystal module is simplified.

Description

Technical Field

[0001] This utility model pertains to liquid crystal display modules, specifically a display device that replaces the blind hole adhesive application at the camera position of a mobile phone using a liquid crystal display module. Background Technology

[0002] With the advancement of technology and the improvement of people's needs, more and more mobile phone or tablet users prefer smart devices with high screen-to-body ratios. In such LCD display products with high screen-to-body ratios, one solution is to cut holes in the backlight module of the LCD display module to place components such as the front-facing camera.

[0003] If light leaks through the backlight cutout in this design, it will significantly affect the performance or effectiveness of components such as the front-facing camera. Therefore, to prevent light leakage at the cutout, this design requires two applications of adhesive at the cutout in the LCD module. The first application is black adhesive applied to the edge of the lower polarizer hole in the LCD screen; the second application is applied after the LCD screen and backlight module are assembled, around the root of the blind hole in the backlight module, and the second application must be tightly bonded to the first. This approach results in a complex process, low yield, and requires automated dispensing equipment for mass production, leading to high equipment costs.

[0004] Therefore, there are areas for improvement in the existing technology. Through better structural design, the blind holes in the LCD module can be made light-leak-free without requiring two layers of adhesive application. This simplifies the process, lowers manufacturing costs, and eliminates the need for expensive equipment, thereby significantly reducing costs and increasing profits for companies producing this type of product. Utility Model Content

[0005] To address the aforementioned technical problems, this utility model provides a display device that replaces the blind hole adhesive application at the mobile phone camera of the liquid crystal display module, thereby resolving the issues existing in the prior art.

[0006] A display device that replaces the adhesive application for blind holes at mobile phone cameras in LCD modules includes an integrated glue frame. A reflective sheet is disposed on the upper side of the integrated glue frame. A light guide sheet is disposed on the upper side of the reflective sheet. An optical diffuser sheet is disposed on the upper side of the light guide sheet. A lower and upper light-enhancing sheet are disposed on the upper surface of the optical diffuser sheet. A first light-shielding tape is disposed on the upper side of the upper light-enhancing sheet. An annular light-shielding tape and a lower polarizer are disposed on the upper side of the first light-shielding tape. An LCD screen body is disposed on the upper side of the lower polarizer. An upper polarizer is disposed on the upper side of the LCD screen body. A cover plate is disposed on the upper side of the upper polarizer. Optical adhesive is disposed between the cover plate and the upper polarizer. A black ring is provided at the LCD screen body for the blind hole of the LCD screen.

[0007] Preferably, the adhesive coating layer of the first light-shielding tape and the annular light-shielding tape is a black adhesive, and the annular light-shielding tape and the first layer of light-shielding tape are bonded together.

[0008] Preferably, one side of the liquid crystal display screen body has an opening area A for the liquid crystal module camera, and the other side of the integrated glue and iron frame has an opening area B for the camera assembly. The opening area A is larger than the camera assembly area B.

[0009] Preferably, the upper polarizer has an upper polarizer opening area C on one side, and the lower polarizer has a lower polarizer opening area D on one side.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] This invention, applied to the design and production of LCD modules, enables the LCD module and backlight module to achieve light leakage at the blind holes of the LCD module using conventional assembly processes, without affecting the performance or effect of devices such as cameras at the blind holes. It replaces the conventional two-stage adhesive application process—applying adhesive at the polarizer of the LCD module and at the root of the hole in the backlight module—simplifying the LCD module production process, saving manufacturing costs, and eliminating the high investment cost of adhesive application equipment, thus creating more value for enterprises. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the existing equipment.

[0014] In the picture:

[0015] 1. Cover plate; 2. Optical adhesive; 3. Upper polarizer; 4. LCD screen body; 5. Lower polarizer; 6. Black ring at the blind hole of the LCD screen; 7. Upper brightness enhancement film; 8. Lower brightness enhancement film; 9. Optical diffuser; 10. Light guide plate; 11. Reflector; 12. Glue and iron frame integrated; 13. First light-shielding tape; 14. Circular light-shielding tape. Detailed Implementation

[0016] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0017] Example 1: As shown in the attached document Figure 1As shown: This utility model provides a display device that replaces the adhesive application for blind holes at the camera of a mobile phone in a liquid crystal display module. It includes an integrated glue and iron frame 12, a reflective sheet 11 on the upper side of the integrated glue and iron frame 12, a light guide sheet on the upper side of the reflective sheet 11, an optical diffuser 9 on the upper side of the light guide sheet, a lower light-enhancing sheet 8 and an upper light-enhancing sheet 7 on the upper surface of the optical diffuser 9, a first light-shielding tape 13 on the upper side of the upper light-enhancing sheet 7, an annular light-shielding tape 14 and a lower polarizer 5 on the upper side of the first light-shielding tape 13, a liquid crystal display body 4 on the upper side of the lower polarizer 5, an upper polarizer 3 on the upper side of the liquid crystal display body 4, a cover plate 1 on the upper side of the upper polarizer 3, optical adhesive 2 between the cover plate 1 and the upper polarizer 3, and a black ring 6 for the blind hole of the liquid crystal display body 4.

[0018] Furthermore, the adhesive coating layer of the first light-shielding tape 13 is a black adhesive. The annular light-shielding tape 14 and the first light-shielding tape 13 are bonded together. The annular light-shielding tape 14 can be a regular ring or an irregular ring. The annular light-shielding tape 14 can also be made by splicing two semi-circular light-shielding tapes together, and the thickness can be unequal.

[0019] Preferably, one side of the liquid crystal display screen body 4 has an opening area A for the liquid crystal module camera, and one side of the glued iron frame 12 has an opening area B for the camera assembly. The opening area A for the camera is larger than the opening area B for the camera assembly. One side of the upper polarizer 3 has an opening area C for the upper polarizer 3, and one side of the lower polarizer 5 has an opening area D for the lower polarizer 5.

[0020] Furthermore, Figure 2 For existing technologies, such as Figure 2 As shown, in existing technology, two applications of adhesive are required at the cutouts in the liquid crystal display module to prevent light leakage. The first application is of black adhesive applied to the edge of the five holes on the lower polarizer of the liquid crystal display. Figure 2 (No. 14); The second time was after the LCD screen and backlight module were assembled ( Figure 2 (No. 15) Apply adhesive around the root of the blind hole at the cutout of the backlight module, and the second application of adhesive must be tightly bonded to the first application of adhesive. Therefore, this method has a complicated process, low process yield, and requires the investment of automated dispensing equipment to achieve mass production, which also has a high equipment investment cost.

[0021] As can be seen from the above, a first light-shielding tape 13 is provided on the upper side of the upper light-enhancing film 7. The first light-shielding tape 13 includes a main body and an adhesive coating layer. The main body of the first light-shielding tape 13 is a black film material as the substrate layer, and the adhesive coating layer of the first light-shielding tape 13 is a black adhesive. The main body of this light-shielding tape is mainly used to stick the lower polarizer 5 of the liquid crystal module, thereby fixing the liquid crystal display body 4. At the same time, on the upper surface of the light-shielding tape at the blind hole of the liquid crystal display body 4, there is also a ring-shaped light-shielding tape 14. The main body of this light-shielding tape is a black film material as the substrate layer, and the adhesive coating layer is a black adhesive. This part of the light-shielding tape is used to stick to the glass of the liquid crystal display body 4, fill the step difference of the lower polarizer 5, and stick together with the first layer of light-shielding tape, thereby preventing the light emitted by the backlight module from leaking out from the lower polarizer 5 and the blind hole of the liquid crystal display body 4, thus playing a role in light shielding and preventing light leakage at the blind hole.

[0022] The embodiments of this utility model are given for the purpose of illustration and description. Although embodiments of this utility model have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the utility model. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this utility model.

[0023] In the description of this utility model, 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 indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. "A plurality of" means two or more, unless otherwise explicitly specified.

[0024] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0025] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0026] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Furthermore, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0027] The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0028] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A display device that replaces the blind hole adhesive application at the camera position of a mobile phone using a liquid crystal display module, characterized in that: The system includes an integral glued iron frame (12), on the upper side of which a reflective sheet (11) is provided. A light guide sheet is provided on the upper side of the reflective sheet (11), and an optical diffuser (9) is provided on the upper side of the light guide sheet. A lower light-enhancing sheet (8) and an upper light-enhancing sheet (7) are provided on the upper surface of the optical diffuser (9). A first light-shielding tape (13) is provided on the upper side of the upper light-enhancing sheet (7). The upper side of the first light-shielding tape (13) is provided with… A ring-shaped light-shielding tape (14) and a lower polarizer (5) are provided. A liquid crystal display body (4) is provided on the upper side of the lower polarizer (5). An upper polarizer (3) is provided on the upper side of the liquid crystal display body (4). A cover plate (1) is provided on the upper side of the upper polarizer (3). An optical adhesive (2) is provided between the cover plate (1) and the upper polarizer (3). A black ring (6) for the blind hole of the liquid crystal display is provided at the liquid crystal display body (4).

2. The display device as described in claim 1, which replaces the blind hole adhesive application at the mobile phone camera of the liquid crystal display module, is characterized in that: The adhesive coating layer of the first light-shielding tape (13) and the annular light-shielding tape (14) is a black adhesive, and the annular light-shielding tape (14) and the first layer of light-shielding tape are bonded together.

3. The display device as described in claim 2, which replaces the blind hole adhesive application at the mobile phone camera of the liquid crystal display module, is characterized in that: The LCD screen body (4) has an opening area A for the LCD module camera on one side, and the integrated iron frame (12) has a camera assembly area B on one side. The camera opening area A is larger than the camera assembly area B.

4. The display device as described in claim 3, which replaces the blind hole adhesive application at the mobile phone camera of the liquid crystal display module, is characterized in that: The upper polarizer (3) has an opening area C on one side, and the lower polarizer (5) has an opening area D on one side.

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