Dustproof liquid crystal display module
By adding conductive cloth to the opening position of the liquid crystal display module and pasting aluminum foil on it, the problem of aluminum foil folding and curling at high temperatures is solved, and an effective dust-proof effect is achieved.
Patent Information
- Application Number
- CN202421984158.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-15
- Publication Date
- 2025-06-17
- Estimated Expiration
- 2034-08-15
AI Technical Summary
In the high temperature environment of existing LCD display modules, aluminum foil is prone to wrinkles and curls, resulting in a reappearance of gaps at the opening position, which greatly reduces the dustproof effect.
Add an elongated conductive cloth to the opening position, covering the opening and sticking aluminum foil to it. Conductive cloth is a braided cloth, and there will be no problem of wrinkling and curling after high temperatures.
By using a conductive cloth, the problem of aluminum foil folding and curling at high temperatures is avoided, thereby maintaining the sealing of the opening position, preventing dust from entering, and effectively improving the dust protection effect.
Smart Images
Figure CN222994798U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of liquid crystal display, in particular to a dust-proof liquid crystal display module. Background Art
[0002] At present, double-sided tape is added to the retaining wall of the backlight module of the liquid crystal display screen to bond with the cover plate. This circle of double-sided tape can not only play the role of fixing the backlight module and the cover plate, but also play a role in dust prevention. However, since the FPC board of the liquid crystal module needs to be bent to the back of the backlight module, an opening needs to be made in the retaining wall at the FPC board lead-out position for avoidance, resulting in a risk of dust ingress at this opening position.
[0003] In the related art, aluminum foil paper is pasted at the opening position. In addition to having an electrostatic shielding effect, the aluminum foil paper can also play a role in dust prevention at the opening position. However, the middle layer of the aluminum foil paper is a thin layer of metallic aluminum, which will have problems of wrinkling and warping in a high-temperature environment, resulting in a new gap appearing at the closed opening position, and thus greatly reducing the dust-proof effect. Summary of the Utility Model
[0004] The purpose of the utility model is to overcome the deficiencies in the prior art, and provide a dust-proof liquid crystal display module, which can prevent the aluminum foil paper from wrinkling and warping in a high-temperature environment, thereby avoiding the failure of dust prevention.
[0005] The purpose of the utility model is achieved by the following technical solutions:
[0006] The first aspect of the present application provides a dust-proof liquid crystal display module, including: a cover plate; a backlight module, the backlight module is adhered to the cover plate, and an opening is provided between the backlight module and the cover plate; a protection component, the protection component includes a conductive cloth and an aluminum foil paper, the conductive cloth is disposed on the backlight module, and the conductive cloth covers the opening, and the aluminum foil paper is disposed on the conductive cloth.
[0007] A first gap portion and a second gap portion are provided on the conductive cloth, and the first gap portion and the second gap portion are respectively located on both sides of the aluminum foil paper.
[0008] The conductive cloth has a rectangular cross-sectional structure.
[0009] The length of the first gap portion is 1 mm.
[0010] The length of the second gap portion is 1 mm.
[0011] It further includes a liquid crystal module, the liquid crystal module includes a first glass substrate and a first polarizer, the first glass substrate is disposed on the first polarizer, and the first polarizer is disposed on the backlight module.
[0012] The liquid crystal module further includes a second glass substrate and a second polarizer. The second glass substrate is disposed on the first glass substrate, and the second polarizer is disposed on the second glass substrate.
[0013] The liquid crystal module further includes an optical adhesive. The second polarizer is adhered to the optical adhesive, and the cover plate is adhered to the optical adhesive.
[0014] The liquid crystal module further includes an FPC board. The FPC board is disposed on the first glass substrate, and the aluminum foil is disposed on the FPC board.
[0015] The liquid crystal module further includes a chip. The chip is disposed on the first glass substrate.
[0016] Compared with the prior art, the present utility model has at least the following advantages:
[0017] Before applying the aluminum foil, an additional strip of conductive cloth is pasted at the opening. Since the conductive cloth is a woven fabric, there will be no problem of wrinkling and warping after high temperature, which can solve the problem of dust prevention failure at the opening position after high temperature. In addition, both the conductive cloth and the aluminum foil are shielding materials, which can also effectively shield static electricity. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for use in the embodiments will be briefly introduced below.
[0019] Figure 1 It is a schematic structural diagram of a dust-proof liquid crystal display module in an embodiment of the present utility model;
[0020] Figure 2 It is a schematic structural diagram of an embodiment of the present utility model without attaching conductive cloth and aluminum foil;
[0021] Figure 3 It is a schematic structural diagram of another embodiment of a dust-proof liquid crystal display module in an embodiment of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0022] The embodiments of the present application will be described in more detail with reference to the accompanying drawings. Although the embodiments of the present application are shown in the drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to make the present application more thorough and complete, and to fully convey the scope of the present application to those skilled in the art.
[0023] It should be understood that although the terms "first", "second", "third", etc. may be used in this application to describe various information, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this application, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of this application, the meaning of "a plurality" is two or more unless otherwise specifically defined.
[0024] Unless otherwise clearly specified and defined, terms such as "install", "connect", "join", "fix", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.
[0025] Currently, double-sided tape is added to the retaining wall of the backlight module of the liquid crystal display screen to bond with the cover plate. This circle of double-sided tape can not only play a role in fixing the backlight module and the cover plate, but also play a role in dust prevention. However, since the FPC board of the liquid crystal module needs to be bent to the back of the backlight module, an opening needs to be made in the retaining wall at the FPC board wire outlet position for avoidance, resulting in a risk of dust ingress at this opening position. At present, aluminum foil paper is pasted at the opening position. In addition to having an electrostatic shielding effect, the aluminum foil paper can also play a role in dust prevention at the opening position. However, the middle layer of the aluminum foil paper is a thin layer of metallic aluminum, which will have problems of wrinkling and warping in a high-temperature environment, resulting in a gap reappearing at the closed opening position, thus greatly reducing the dust prevention effect.
[0026] In view of the above problems, an embodiment of this application provides a dust-proof liquid crystal display module, which can prevent the aluminum foil paper from wrinkling and warping in a high-temperature environment, thereby avoiding the failure of dust prevention.
[0027] The technical solutions of the embodiments of this application will be described in detail below with reference to the drawings.
[0028] Please refer to Figure 1 and Figure 2, a dust-proof liquid crystal display module, comprising: a cover plate 100, a backlight module 200 and a protection component 300. The backlight module 200 is adhered to the cover plate 100, and an opening 400 is provided between the backlight module 200 and the cover plate 100. The protection component 300 includes a conductive cloth 310 and an aluminum foil 320. The conductive cloth 310 is disposed on the backlight module 200, and the conductive cloth 310 covers the opening 400. The aluminum foil 320 is disposed on the conductive cloth 310.
[0029] It should be noted that before applying the aluminum foil 320, an additional strip-shaped conductive cloth 310 is pasted at the opening 400. Since the conductive cloth 310 is a woven cloth, there will be no problem of wrinkles and warping after high temperature, which can solve the problem of dust prevention failure at the opening position after high temperature. In addition, the conductive cloth 310 and the aluminum foil 320 belong to the shielding materials, and can also effectively shield static electricity.
[0030] Please refer to Figure 1 , in an embodiment, a first gap portion and a second gap portion are provided on the conductive cloth 310, and the first gap portion and the second gap portion are respectively located on both sides of the aluminum foil 320. Specifically, the conductive cloth 310 has a rectangular cross-sectional structure. Specifically, the length of the first gap portion is 1 mm. Specifically, the length of the second gap portion is 1 mm.
[0031] It should be noted that the first gap portion and the second gap portion are also part of the conductive cloth 310. After the aluminum foil 320 is pasted, there will be a gap with a length of 1 mm on both sides of the aluminum foil 320, that is, the first gap portion and the second gap portion. In this way, it is possible to visually determine whether the conductive cloth 310 is missed pasted.
[0032] Please refer to Figure 3 , in an embodiment, a dust-proof liquid crystal display module further includes a liquid crystal module 500. The liquid crystal module 500 includes a first glass substrate 510 and a first polarizer 520. The first glass substrate 510 is disposed on the first polarizer 520, and the first polarizer 520 is disposed on the backlight module 200. Specifically, the liquid crystal module 500 further includes a second glass substrate 530 and a second polarizer 540. The second glass substrate 530 is disposed on the first glass substrate 510, and the second polarizer 540 is disposed on the second glass substrate 530.
[0033] It should be noted that the first glass substrate 510 and the second glass substrate 530 are stacked to form a liquid crystal cell, and the first polarizer 520 and the second polarizer 540 play a role in polarizing light.
[0034] Please refer to Figure 3, in one embodiment, the liquid crystal module 500 further includes an optical adhesive 550. The second polarizer 540 is adhered to the optical adhesive 550, and the cover plate 100 is adhered to the optical adhesive 550. It should be understood that the optical adhesive 550 is an OCA optical adhesive.
[0035] Please refer to Figure 3 , in one embodiment, the liquid crystal module 500 further includes an FPC board 560. The FPC board 560 is disposed on the first glass substrate 510, and the aluminum foil 320 is disposed on the FPC board 560.
[0036] It should be noted that the FPC board 560 is bent to the backlight module 200, and the aluminum foil 320 covers the FPC board 560.
[0037] Please refer to Figure 3 , in one embodiment, the liquid crystal module 500 further includes a chip 570. The chip 570 is disposed on the first glass substrate 510.
[0038] It should be noted that the chip 570 is used to control the image display of the liquid crystal screen.
[0039] The solutions of the present application have been described in detail above with reference to the accompanying drawings. In the above embodiments, the descriptions of the various embodiments have their own emphases. For the parts not detailed in a certain embodiment, reference can be made to the relevant descriptions of other embodiments. Those skilled in the art should also know that the actions and modules involved in the specification are not necessarily essential to the present application. In addition, it can be understood that the steps in the method embodiments of the present application can be adjusted, combined, and deleted according to actual needs, and the modules in the device embodiments of the present application can be combined, divided, and deleted according to actual needs.
[0040] The various embodiments of the present application have been described above. The above description is exemplary and not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations are obvious to those of ordinary skill in the art in the technical field without departing from the scope and spirit of the described embodiments. The selection of the terms used herein is intended to best explain the principles of the embodiments, the practical applications, or the improvements to the technologies in the market, or to enable other ordinary skilled in the art in the technical field to understand the embodiments disclosed herein.
Claims
1. A dustproof liquid crystal display module, characterized in that: include: Cover plate; A backlight module, wherein the backlight module is adhered to the cover plate, and an opening is provided between the backlight module and the cover plate; The protective component includes a conductive cloth and aluminum foil. The conductive cloth is arranged on the backlight module and covers the opening. The aluminum foil is arranged on the conductive cloth.
2. The dustproof liquid crystal display module according to claim 1, characterized in that: The conductive cloth is provided with a first gap portion and a second gap portion, and the first gap portion and the second gap portion are respectively located on two sides of the aluminum foil paper.
3. The dustproof liquid crystal display module according to claim 1, characterized in that: The conductive fabric has a rectangular cross-sectional structure.
4. The dustproof liquid crystal display module according to claim 2, characterized in that: The length of the first gap is 1 mm.
5. The dustproof liquid crystal display module according to claim 2, characterized in that: The length of the second gap is 1 mm.
6. The dustproof liquid crystal display module according to claim 1, characterized in that: It also includes a liquid crystal module, which includes a first glass substrate and a first polarizer. The first glass substrate is arranged on the first polarizer, and the first polarizer is arranged on the backlight module.
7. The dustproof liquid crystal display module according to claim 6, characterized in that: The liquid crystal module further includes a second glass substrate and a second polarizer. The second glass substrate is disposed on the first glass substrate, and the second polarizer is disposed on the second glass substrate.
8. The dustproof liquid crystal display module according to claim 7, characterized in that: The liquid crystal module further comprises optical glue, the second polarizer is adhered to the optical glue, and the cover plate is adhered to the optical glue.
9. The dustproof liquid crystal display module according to claim 8, characterized in that: The liquid crystal module further includes an FPC board, wherein the FPC board is arranged on the first glass substrate, and the aluminum foil is arranged on the FPC board.
10. The dustproof liquid crystal display module according to claim 8, characterized in that: The liquid crystal module further includes a chip, and the chip is disposed on the first glass substrate.