Structure for preventing liquid crystal display module from leaking light
By extending the shielding paper and pasting it to the bottom of the cover plate of the LCD display module, the light leakage problem caused by insufficient width is solved, and more effective light shading and electrostatic shielding effects are achieved.
Patent Information
- Application Number
- CN202422010295.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-19
- Publication Date
- 2025-06-17
- Estimated Expiration
- 2034-08-19
AI Technical Summary
The LCD display module needs to be opened at the retaining wall at the outgoing position of the soft circuit board, which causes light to be exposed. At this stage, the shielding paper is used to block the light, but it is easy to cause concave inside the shielding paper due to the pressing and smoothing action, which causes gaps and causes light leakage.
A structure is designed to prevent light leakage from the LCD display module, extend the shielding paper, and attach it from the side wall of the backlight module to the bottom of the cover plate to avoid the problem of concave notch caused by insufficient width.
By extending the shielding paper and attaching it to the bottom of the cover, light leakage is effectively avoided. At the same time, due to the softness of the soft circuit board area, the shielding paper can be slightly pressed to improve the attachment and further reduce the risk of light leakage.
Smart Images
Figure CN222994780U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of liquid crystal display, in particular to a structure for preventing light leakage of a liquid crystal display module. Background Technique
[0002] At present, a double-sided adhesive is added to the backlight retaining wall of the liquid crystal display module for bonding with the cover plate. However, since the flexible printed circuit board needs to be bent to the back of the backlight module, an opening needs to be made in the retaining wall at the position where the flexible printed circuit board exits to avoid interference. Light will leak through this opening. At present, a shielding paper is covered at this opening position, which can play a role in light shielding and electrostatic shielding.
[0003] In the related art, since the area where the flexible printed circuit board is located is soft, the pressing and smoothing action when applying the shielding paper can easily cause the shielding paper to sink inward. The width of the shielding paper just touches the bottom of the cover plate. Therefore, even a slight inward concavity of the shielding paper will result in insufficient width, causing a notch at the root position and resulting in a light leakage problem. Content of the Utility Model
[0004] The purpose of the utility model is to overcome the deficiencies in the prior art and provide a structure for preventing light leakage of a liquid crystal display module. The shielding paper is designed with an extended length and is pasted from the side wall of the backlight module to the bottom of the cover plate to solve the problem of insufficient width causing the shielding paper to sink inward and form a notch.
[0005] The purpose of the utility model is achieved by the following technical solutions:
[0006] A first aspect of the present application provides a structure for preventing light leakage of a liquid crystal display module, including a cover plate; a plugging component, including a first shielding paper and a second shielding paper, the first shielding paper is connected to the second shielding paper, and the first shielding paper is disposed on the cover plate; a liquid crystal display component, including an FPC board, an opening is provided between the FPC board and the cover plate, the second shielding paper is disposed on the FPC board, and the first shielding paper is located at the opening position.
[0007] The cover plate has a first side edge, the first shielding paper has a second side edge, and the first side edge and the second side edge are flush with each other.
[0008] A chamfered portion is provided on the first shielding paper.
[0009] The liquid crystal display component further includes a first glass substrate and a second glass substrate, the FPC board is disposed on the first glass substrate, and the second glass substrate is disposed on the first glass substrate.
[0010] The liquid crystal display component further includes a first polarizing plate, and the first polarizing plate is disposed on the first glass substrate.
[0011] The liquid crystal display component further includes a second polarizer, and the second polarizer is disposed on the second glass substrate.
[0012] The liquid crystal display component further includes a first colloid, the first colloid is disposed on the second polarizer, and the cover plate is disposed on the first colloid.
[0013] The liquid crystal display component further includes a second colloid, and the second colloid is disposed on the first polarizer.
[0014] The liquid crystal display component further includes a third colloid, and the third colloid is disposed on the cover plate.
[0015] It further includes a backlight module, and the backlight module is disposed on the third colloid.
[0016] Compared with the prior art, the present utility model has at least the following advantages:
[0017] The first shielding paper is a part extended from the second shielding paper, and it extends to the bottom of the cover plate to avoid the concave notch that is likely to occur due to insufficient width, thereby improving the light leakage problem caused by the notch. At the same time, because the flexible circuit board area is soft, when it is found that the shielding paper slightly exceeds the outer shape of the cover plate after attachment, this area can be slightly pressed to make the shielding paper stick inwards slightly for improvement. 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 to be used in the embodiments will be briefly introduced below.
[0019] Figure 1 It is a schematic structural diagram of a structure for preventing light leakage of a liquid crystal display module in an embodiment of the present utility model;
[0020] Figure 2 It is a schematic structural diagram of a structure without attaching a shielding paper in an embodiment of the present utility model;
[0021] Figure 3 It is a schematic structural diagram of another implementation manner of a structure for preventing light leakage of a 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 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, "a plurality" means two or more, unless otherwise specifically defined.
[0024] Unless otherwise clearly specified and defined, terms such as "install", "connect", "join", "fix", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can 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 bond the cover plate to the backlight retaining wall in the liquid crystal display module. However, since the flexible printed circuit board needs to be bent to the back of the backlight module, an opening needs to be made in the retaining wall at the outlet position of the flexible printed circuit board for avoidance. Light will leak through this opening. At present, a shielding paper is covered at this opening position, which can play a role in light shielding and electrostatic shielding. However, since the area where the flexible printed circuit board is located is soft, the pressing and smoothing action when pasting the shielding paper can easily cause the shielding paper to sink inward. And the width of the shielding paper just tangentially touches the bottom of the cover plate. Therefore, even a slight inward concavity of the shielding paper will cause its width to be insufficient, resulting in a gap at the root position and causing a light leakage problem.
[0026] In view of the above problems, an embodiment of this application provides a structure for preventing light leakage in a liquid crystal display module. The shielding paper is designed to be extended and pasted from the side wall of the backlight module to the bottom of the cover plate to solve the problem that the insufficient width causes the shielding paper to sink inward and form a gap.
[0027] The technical solutions of the embodiments of this application will be described in detail below with reference to the accompanying drawings.
[0028] Please refer to Figure 1 、 Figure 2 and Figure 3, A structure for preventing light leakage in a liquid crystal display module, including a cover plate 100, a sealing component 200, and a liquid crystal display component 300. The sealing component 200 includes a first shielding paper 210 and a second shielding paper 220. The first shielding paper 210 is connected to the second shielding paper 220, and the first shielding paper 210 is disposed on the cover plate 100. The liquid crystal display component 300 includes an FPC board 310. An opening 400 is provided between the FPC board 310 and the cover plate 100. The second shielding paper 220 is disposed on the FPC board 310, and the first shielding paper 210 is located at the position of the opening 400.
[0029] It should be noted that the first shielding paper 210 and the second shielding paper 220 are integrally formed. The first shielding paper 210 is an extended part of the second shielding paper 220, and it extends to the bottom of the cover plate 100 to avoid the concave notch that is likely to occur due to insufficient width, thereby improving the light leakage problem caused by the notch. At the same time, because the flexible circuit board area is soft, when it is found that the shielding paper slightly exceeds the outer shape of the cover plate 100 after attachment, this area can be slightly pressed to make the shielding paper stick inwards slightly for improvement.
[0030] Please refer to Figure 1 , In an embodiment, the cover plate 100 has a first side edge 110, and the first shielding paper 210 has a second side edge 211. The first side edge 110 and the second side edge 211 are flush with each other.
[0031] It should be noted that the first side edge 110 is the bottom edge of the cover plate 100, and the second side edge 211 is also the bottom edge of the first shielding paper 210. The two bottom edges are flush with each other.
[0032] Please refer to Figure 3 , In an embodiment, a chamfered portion 212 is provided on the first shielding paper 210.
[0033] It should be noted that the design of the chamfered portion 212 facilitates the design of the stamping die for the shielding paper and the forming of the shielding paper.
[0034] Please refer to Figure 1 , In an embodiment, the liquid crystal display component 300 further includes a first glass substrate 320 and a second glass substrate 330. The FPC board 310 is disposed on the first glass substrate 320, and the second glass substrate 330 is disposed on the first glass substrate 320.
[0035] It should be noted that the first glass substrate 320 and the second glass substrate 330 are stacked to form a liquid crystal cell, and the liquid crystal cell is used for filling liquid crystal.
[0036] Please refer to Figure 1, in one embodiment, the liquid crystal display component 300 further includes a first polarizer 340, and the first polarizer 340 is disposed on the first glass substrate 320. Specifically, the liquid crystal display component 300 further includes a second polarizer 350, and the second polarizer 350 is disposed on the second glass substrate 330.
[0037] It should be noted that the first polarizer 340 and the second polarizer 350 play a role in polarizing light.
[0038] Please refer to Figure 1 , in one embodiment, the liquid crystal display component 300 further includes a first colloid 360, the first colloid 360 is disposed on the second polarizer 350, and the cover plate 100 is disposed on the first colloid 360. Specifically, the liquid crystal display component 300 further includes a second colloid 370, and the second colloid 370 is disposed on the first polarizer 340. Specifically, the liquid crystal display component 300 further includes a third colloid 380, and the third colloid 380 is disposed on the cover plate 100. More specifically, it further includes a backlight module 500, and the backlight module 500 is disposed on the third colloid 380.
[0039] It should be noted that the first colloid 360 is an optical glue, and the second colloid 370 and the third colloid 380 are double-sided adhesives.
[0040] 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 each embodiment have their own focuses. For the parts not described in detail 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.
[0041] 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 application, or the improvement of the technology 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 structure for preventing light leakage from a liquid crystal display module, characterized in that: include: Cover plate; A blocking component, comprising a first shielding paper and a second shielding paper, wherein the first shielding paper is connected to the second shielding paper, and the first shielding paper is arranged on the cover plate; A liquid crystal display assembly comprises an FPC board, wherein an opening is arranged between the FPC board and the cover plate, the second shielding paper is arranged on the FPC board, and the first shielding paper is located at the opening position.
2. The structure for preventing light leakage from a liquid crystal display module according to claim 1, characterized in that: The cover plate has a first side edge, the first shielding paper has a second side edge, and the first side edge is flush with the second side edge.
3. The structure for preventing light leakage from a liquid crystal display module according to claim 2, characterized in that: The first shielding paper is provided with a chamfered portion.
4. The structure for preventing light leakage from a liquid crystal display module according to claim 2, characterized in that: The liquid crystal display assembly further includes a first glass substrate and a second glass substrate. The FPC board is disposed on the first glass substrate, and the second glass substrate is disposed on the first glass substrate.
5. The structure for preventing light leakage from a liquid crystal display module according to claim 4, characterized in that: The liquid crystal display assembly further includes a first polarizer, and the first polarizer is disposed on the first glass substrate.
6. The structure for preventing light leakage from a liquid crystal display module according to claim 4, characterized in that: The liquid crystal display assembly further includes a second polarizer, and the second polarizer is disposed on the second glass substrate.
7. The structure for preventing light leakage from a liquid crystal display module according to claim 6, characterized in that: The liquid crystal display assembly further comprises a first colloid, wherein the first colloid is arranged on the second polarizer, and the cover plate is arranged on the first colloid.
8. The structure for preventing light leakage from a liquid crystal display module according to claim 5, characterized in that: The liquid crystal display component further includes a second colloid, and the second colloid is arranged on the first polarizer.
9. The structure for preventing light leakage from a liquid crystal display module according to claim 1, characterized in that: The liquid crystal display component further comprises a third colloid, and the third colloid is arranged on the cover plate.
10. The structure for preventing light leakage from a liquid crystal display module according to claim 9, characterized in that: The invention also comprises a backlight module, and the backlight module is arranged on the third colloid.