Backlight module structure of hybrid liquid crystal display

Abstract

The application relates to a backlight module structure of a hybrid liquid crystal display screen and relates to the technical field of hybrid liquid crystal display screens. The backlight module structure of the hybrid liquid crystal display screen comprises a storage assembly mounted in an F frame and a slideable guide. The storage assembly and the inner wall of the F frame form a storage groove for pre-storing UV glue, and the UV glue is output through a communicating outlet. The guide is located at a first position when an optical assembly is not assembled, and the outlet is blocked. In the process of inserting and assembling an optical film and an optical diffusion plate, the guide is forced to slide to a second position, so that the outlet is opened, the UV glue flows out and is bonded to the optical film and the diffusion plate. The structure combines sliding control and structural triggering mechanism, is beneficial to realizing automatic bonding, and improves assembly efficiency and connection stability.

Description

Technical Field

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

[0002] Currently, in the structural design of existing LCD display modules, the optical diffuser plate and optical film are often housed in the F-frame slot of the metal backplate. To prevent the optical film from slipping off, the existing process involves manually bonding the diffuser plate and optical film together with a single strip of double-sided tape before inserting the entire assembly into the F-frame slot. Research has shown that this assembly method is prone to issues such as weak adhesion, affecting product reliability and consistency. Summary of the Invention

[0003] This application provides a backlight module structure for a hybrid liquid crystal display screen to at least partially solve the above-mentioned technical problems.

[0004] To achieve the above objectives, according to a first aspect of this application, a backlight module structure for a hybrid liquid crystal display screen is provided, including a storage component and a guide member. The storage component is configured to be installed within an F-frame of the backlight module, and a storage groove is formed between the storage component and the inner wall of the F-frame. The storage groove is configured to store UV adhesive. The storage component has an outlet communicating with the storage groove. The guide member is slidably disposed within the F-frame. The guide member is configured to block the outlet in a first position and open the outlet in a second position under the pushing action of an optical film and an optical diffuser plate of the backlight module, so that the UV adhesive in the storage groove flows through the outlet to the optical film and the optical diffuser plate.

[0005] Optionally, the storage assembly includes a first plate and a second plate. The first plate is connected to the inner end wall of the F frame, and the second plate is located on the side of the first plate away from the F frame. The first plate, the second plate, and part of the inner end wall of the F frame enclose the storage groove, and the outlet is opened on the second plate.

[0006] Optionally, the guide includes a blocking portion that slidably abuts against the lower surface of the second plate and is configured to abut against the outlet.

[0007] Optionally, the length of the blocking portion is greater than the length of the outlet, and the thickness of the blocking portion is greater than the width of the outlet.

[0008] Optionally, the guide further includes an abutment portion connected to one end of the sealing portion away from the second plate, the abutment portion slidably abutting against the inner bottom wall of the F frame, and the abutment portion being configured to engage with the end of the optical diffuser plate.

[0009] Optionally, when the guide is in the first position, the blocking part abuts against the outlet; when the guide is in the second position, both the blocking part and the abutting part abut against the inner end wall of the F frame.

[0010] Optionally, it also includes a back plate, an F-frame, an optical diffuser plate, and an optical film. The F-frame is disposed at the edge of the back plate, the optical diffuser plate is slidably disposed on the inner bottom wall of the F-frame, and the optical film is attached to the optical diffuser plate.

[0011] Optionally, a stepped groove is formed between the end of the optical diffuser plate and the end of the optical film, the stepped groove being configured to be opposite the outlet when the guide is in the second position.

[0012] Optionally, it also includes a reflector, which is obliquely disposed on the second plate of the storage assembly and is configured to reflect external UV light into the stepped groove.

[0013] In summary, this application includes at least one of the following beneficial technical effects:

[0014] 1. In the backlight module structure of the hybrid liquid crystal display screen of this application embodiment, by setting a collaborative structure of storage components and guide components, a UV adhesive supply system with automatic release function is constructed inside the F-frame, enabling the release and distribution of the adhesive medium to be completed simultaneously with the optical film and optical diffuser plate during assembly. Simultaneously, without relying on manual adhesive application, the guide components are driven to slide from a first position with a closed outlet to a second position with an open outlet by the pushing action of the optical film and optical diffuser plate of the backlight module. This allows for precise guidance of UV adhesive to the optical components as they are installed, achieving simultaneous integration of assembly and bonding. This structural control method is beneficial to improving assembly efficiency and reducing adhesive waste and process complexity. Furthermore, UV adhesive has superior bonding strength and environmental stability compared to double-sided tape, and can cure under ultraviolet light to form a durable bond. Therefore, this solution also enhances the structural reliability and service life of the optical components to a certain extent. In addition, by pre-setting the storage tank in the F frame and adding a closable guide, the sealing of the UV adhesive before use can be effectively controlled, reducing the risk of premature evaporation, contamination or aging of the adhesive, thereby improving the quality consistency and automation level of the overall assembly process of the backlight module.

[0015] 2. The reflector design allows external UV light to be guided into the stepped groove area to a certain extent during irradiation. Because the reflector is arranged at an angle, its reflection path can cover areas within the stepped groove that are difficult to directly irradiate, thereby increasing the effective irradiation area and the uniformity of light intensity distribution within the stepped groove. This improved light utilization allows the UV adhesive within the stepped groove to cure under more abundant light, resulting in a more uniform curing process. This, in turn, makes the bond strength between the optical film and the optical diffuser plate more stable, reducing the potential risk of detachment caused by insufficient local curing. Overall, this structure improves the reliability and bonding effect of the backlight module during long-term use.

[0016] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments 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.

[0018] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings, wherein the same reference numerals in the following description denote the same parts.

[0019] Figure 1 This is a schematic diagram of the overall structure of the backlight module provided in an exemplary embodiment of this application;

[0020] Figure 2 This is a partial cross-sectional view of the guide member in the first position provided in an exemplary embodiment of this application;

[0021] Figure 3 This is a partial cross-sectional view of the guide member in the second position provided in an exemplary embodiment of this application.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Storage component; 11. First plate; 12. Second plate; 121. Outlet;

[0024] 2. Guide component; 21. Sealing part; 22. Abutment part;

[0025] 3. Storage tank;

[0026] 4. Back panel;

[0027] 5. Frame F;

[0028] 6. Optical diffuser plate;

[0029] 7. Optical films;

[0030] 8. Stepped groove;

[0031] 9. Reflector. Detailed Implementation

[0032] 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 a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the protection scope of this application.

[0033] Reference Figures 1 to 3 This application provides a backlight module structure for a hybrid liquid crystal display, including a storage component 1 and a guide component 2. The storage component 1 is installed inside the F-frame 5 of the backlight module. Specifically, a storage groove 3 is formed between the storage component 1 and the inner wall of the F-frame 5. The storage groove 3 can be pre-filled with UV adhesive before assembly. The storage component 1 has an outlet 121 communicating with the storage groove 3. The outlet 121 is used to guide the UV adhesive in the storage groove 3 to the target area at an appropriate time.

[0034] For example, the guide 2 is slidably disposed along the inner wall of the F frame 5. Its structural design allows it to naturally be in a first position when not pushed by an external load. In this first position, the guide 2 blocks the outlet 121, thereby making it difficult for the UV adhesive in the storage tank 3 to leak or evaporate in the initial state. The sliding direction of the guide 2 is consistent with the assembly direction of the optical film 7 and the optical diffuser plate 6. Specifically, during the assembly of the backlight module, when the optical film 7 and the optical diffuser plate 6 are sequentially inserted into the slot of the F frame 5 and reach the position of the guide 2, they apply an axial thrust to the guide 2. Under the action of this force, the guide 2 slides deeper into the F frame 5 to a second position. In this state, the outlet 121 is open, and the UV adhesive is released through the outlet 121 to the position that contacts the optical film 7 and the optical diffuser plate 6 under the action of gravity or internal pressure, thereby forming a liquid adhesive medium between them.

[0035] Understandably, this structural design allows the release of UV adhesive to be naturally synchronized with the assembly process, avoiding manual dispensing and achieving a certain degree of automated bonding. Compared to traditional double-sided adhesive bonding, this structure, through a structural flow control mechanism, can achieve bonding without adding extra assembly steps. Furthermore, the UV adhesive cures under ultraviolet light to form a stronger bond and maintains good stability under changes in ambient temperature and humidity.

[0036] It is worth noting that the structure of the cooperation between the guide 2 and the storage component 1 can be further defined according to the actual process. For example, the guide 2 can restrict its movement path and sliding range through a groove or limiting structure to ensure that it effectively exposes or closes the outlet 121 during assembly. The material of the storage component 1 can be a plastic or coated metal material that does not react with UV adhesive, avoiding problems such as adhesive leakage and deterioration during long-term storage, thereby improving the practicality and repeatability of the structure. This structure is beneficial to the automated assembly of optical components to a certain extent, reducing the degree of manual intervention, and providing favorable support for the installation stability of the optical diaphragm 7.

[0037] In some implementations, combined with Figures 1 to 3 The storage assembly 1 includes a first plate 11 and a second plate 12. The first plate 11 is connected to the inner end wall of the F-frame 5, and the second plate 12 is located on the side of the first plate 11 away from the F-frame 5. Furthermore, the first plate 11 and the second plate 12 are arranged vertically and together with a portion of the inner end wall of the F-frame 5, enclose a spatial area, which is the storage tank 3 for containing UV adhesive. An outlet 121 is provided on the second plate 12 to guide the UV adhesive out to the bonding position between the optical film 7 and the optical diffuser plate 6 at an appropriate time.

[0038] It is understandable that the above structural design provides the storage tank 3 with a relatively stable and sealed geometric space, which is beneficial for the centralized storage of UV adhesive before assembly. On the other hand, by opening the outlet 121 on the second plate 12 away from the F frame 5, and with the sliding control of the guide 2, the UV adhesive can be smoothly released from the outlet 121 after the optical film 7 and the optical diffuser plate 6 push the guide 2, forming a bonding path for the optical film 7 and the optical diffuser plate 6. This improves the accuracy and controllability of UV adhesive release to a certain extent and reduces the interference of adhesive flow on other structural components.

[0039] In some implementations, combined with Figures 1 to 3The guide member 2 includes a sealing part 21 and an abutting part 22. The sealing part 21 is disposed along the sliding direction of the guide member 2, and one end of the sealing part 21 slidably abuts against the lower surface of the second plate 12, forming a close fit with the outlet 121 on the second plate 12 through its own structure. Furthermore, the length of the sealing part 21 is greater than the length of the outlet 121, and the thickness of the sealing part 21 is greater than the width of the outlet 121. This difference in structural proportions is beneficial because when the guide member 2 is in the first position, the sealing part 21 can completely cover the outlet 121 in the length direction, while forming a press-fit seal in the thickness direction, improving the adhesive sealing effect and reducing the risk of UV adhesive leakage before the optical components are installed. In the sliding state of the structure, the sealing part 21 moves with the guide member 2. When the guide member 2 slides from the first position to the second position, the sealing part 21 gradually leaves the outlet 121, so that the UV adhesive can be released smoothly through the outlet 121 to the contact interface between the optical film 7 and the optical diffuser plate 6, forming an effective bonding path.

[0040] For example, the guide member 2 further includes an abutment portion 22, which is disposed at the end of the sealing portion 21 away from the second plate 12 and can slide relative to the inner bottom wall of the F frame 5. The structural direction of the abutment portion 22 is consistent with the insertion direction of the optical diffuser plate 6, and its size can form an abutment relationship with the end of the optical diffuser plate 6. That is, during the assembly process, when the optical diffuser plate 6 is inserted into the groove of the F frame 5 and contacts the abutment portion 22 of the guide member 2, the continued application of axial thrust will cause the entire guide member 2 to slide, thereby causing the sealing portion 21 to gradually move away from the originally sealed outlet 121. When the diffuser plate pushes the guide 2 to its limit position, the abutment part 22 contacts the inner end wall of the F frame 5 to form a limit. At the same time, the sealing part 21 and the abutment part 22 both abut against the inner end wall of the F frame 5. The guide 2 is in the second position. At this time, the outlet 121 is in a fully open state. The UV adhesive can be released through the outlet 121 under the action of pressure or gravity in the storage tank 3 and distributed between the contact area of ​​the optical film 7 and the optical diffuser plate 6 for subsequent curing and bonding by UV lamp irradiation.

[0041] It is understandable that the abutment portion 22 in this structure serves as a limiting reference surface for the installation depth of the optical diffuser plate 6. Its structural positioning directly determines the final installation position of the optical diffuser plate 6, without relying on external vision or manual adjustment. Therefore, it has a certain degree of position control effect, which helps reduce the intensity of manual intervention and assembly errors, and improves the automation adaptability of the overall structure. In addition, the guide member 2, through the linkage between the sealing portion 21 and the abutment portion 22, forms an automatic triggering mechanism for adhesive release during the installation of optical components, avoiding premature contact of UV adhesive with air or overflow contamination of other components. It also helps to control the UV adhesive release path in a compact structure, improving the process compatibility of bonding operations. The sealing portion 21 does not use a flexible seal to fit with the outlet 121, but rather controls the adhesive flow path through a wide and thick coverage design. Its contact accuracy can be adjusted by the injection molding part accuracy or in-mold inserts. The above structure has high coordination in the installation and bonding process of the optical module, which can support the standardized assembly process of the backlight module structure to a certain extent, reduce process complexity, and improve bonding accuracy and bonding stability.

[0042] In some embodiments, refer to Figures 1 to 3 The backlight module structure of the hybrid liquid crystal display also includes a back plate 4, an F-frame 5, an optical diffuser plate 6, and an optical film 7. The F-frame 5 is located at the edge of the back plate 4, the optical diffuser plate 6 is slidably located on the inner bottom wall of the F-frame 5, and the optical film 7 is attached to the optical diffuser plate 6.

[0043] For example, a stepped groove 8 is formed between the end of the optical diffuser plate 6 and the end of the optical film 7. The stepped groove 8 is configured to face the outlet 121 when the guide 2 is in the second position. Further, the stepped groove 8 is composed of a portion of the surface of the optical diffuser plate 6 and the end wall of the optical film 7. Thus, when the UV adhesive in the storage tank 3 flows into the stepped groove 8 through the outlet 121, it can continue to flow through the stepped groove 8 to the space between the optical diffuser plate 6 and the optical film 7, thereby improving the connection between the optical diffuser plate 6 and the optical film 7.

[0044] For example, the backlight module also includes a reflector 9, which is obliquely disposed on the second plate 12, with one end near the area where the outlet 121 is located and the other end facing the direction of illumination from the external UV light source. The reflector 9 can be made of a metal-coated material or an optical film material with high reflectivity, and its surface is treated with mirror or diffuse reflection to adapt to the reflection efficiency requirements under different UV light sources. The tilt angle of the reflector 9 is set according to the installation position of the UV lamp in the actual application, which can guide the UV light from the outside to the stepped groove 8 area through reflection, that is, around the bonding position between the optical film 7 and the optical diffuser plate 6. This structural arrangement is beneficial to allow the UV light to penetrate the surface of the diffuser plate and, under the guidance of the reflector 9, to more fully converge to the UV adhesive accumulation area, thereby increasing the distribution density of UV energy in this area.

[0045] It is understandable that, compared to the traditional curing method with unidirectional irradiation, setting an inclined reflector 9 can, to some extent, improve the problem of insufficient local irradiation caused by structural obstruction or angular offset, allowing the UV adhesive to receive light more comprehensively during the light-receiving process. This, in turn, helps the UV adhesive complete the curing reaction within a unit time and form a more stable bond. The placement of the reflector 9 also serves a structural guiding function. Its position and relationship with the second plate 12 are clearly defined, making its installation repeatable and designable, suitable for modular assembly processes. Through the above structural design, the reflector 9, to some extent, helps optimize the propagation path of UV light within the backlight module, providing favorable irradiation conditions for the adhesive curing reaction and structurally enhancing the bonding performance between the optical film 7 and the diffuser plate.

[0046] In the description of this application, 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 features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0047] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0048] The embodiments, implementation methods, and related technical features of this application can be combined and substituted for each other without conflict.

[0049] The above are merely preferred embodiments of this application and are not intended to limit this application in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the scope of the technical solution of this application shall still fall within the scope of the technical solution of this application.

Claims

1. A backlight module structure for a hybrid liquid crystal display, characterized in that, The application relates to a storage assembly (1) and a guide (2), the storage assembly (1) is arranged in an F frame (5) of a backlight module, a storage groove (3) is formed between the storage assembly (1) and the inner wall of the F frame (5), the storage groove (3) is arranged for storing UV glue, the storage assembly (1) is provided with a flow outlet (121) communicating with the storage groove (3), the guide (2) is slidably arranged in the F frame (5), the guide (2) is arranged to block the flow outlet (121) in a first position, and the guide (2) is arranged to open the flow outlet (121) in a second position under the pushing action of an optical film (7) and an optical diffusion plate (6) of the backlight module, so that the UV glue in the storage groove (3) flows to the optical film (7) and the optical diffusion plate (6) through the flow outlet (121), and the optical film (7) is attached to the optical diffusion plate (6). The guide (2) comprises a blocking part (21) and an abutting part (22), the blocking part (21) is arranged to abut the flow outlet (121), and the abutting part (22) is arranged to abut the end of the optical diffusion plate (6). A stepped groove (8) is formed between the end of the optical diffusion plate (6) and the end of the optical film (7), the stepped groove (8) is arranged to be opposite to the flow outlet (121) when the guide (2) is in the second position, and the stepped groove (8) is composed of part of the plate surface of the optical diffusion plate (6) and the end wall of the optical film (7).

2. The backlight module structure of the hybrid liquid crystal display panel according to claim 1, wherein, The storage assembly (1) comprises a first plate body (11) and a second plate body (12), the first plate body (11) is connected to the inner end wall of the F frame (5), the second plate body (12) is arranged on the side, away from the F frame (5), of the first plate body (11), the first plate body (11), the second plate body (12) and part of the inner end wall of the F frame (5) form the storage groove (3), and the flow outlet (121) is arranged on the second plate body (12).

3. The backlight module structure of claim 2, wherein, The blocking part (21) is slidably abutted on the lower plate surface of the second plate body (12).

4. The backlight module structure of claim 3, wherein, The length of the blocking part (21) is greater than the length of the flow outlet (121), and the thickness of the blocking part (21) is greater than the width of the flow outlet (121).

5. The backlight module structure of claim 3, wherein, The abutting part (22) is connected to the end, away from the second plate body (12), of the blocking part (21), and the abutting part (22) is slidably abutted on the inner bottom wall of the F frame (5).

6. The backlight module structure of claim 5, wherein, When the guide (2) is in the first position, the blocking part (21) is abutted at the flow outlet (121), and when the guide (2) is in the second position, the blocking part (21) and the abutting part (22) are both abutted on the inner end wall of the F frame (5).

7. The backlight module structure of hybrid liquid crystal display panel according to any one of claims 1 to 6, characterized in that, Further comprising a back plate (4), an F frame (5), an optical diffusion plate (6) and an optical film (7), the F frame (5) is arranged at the edge of the back plate (4), and the optical diffusion plate (6) is slidably arranged on the inner bottom wall of the F frame (5).

8. The backlight module structure of claim 2, wherein, Further comprising a reflection plate (9), the reflection plate (9) is arranged on the second plate body (12) of the storage assembly (1) in an inclined manner, and the reflection plate (9) is configured to reflect the UV light from the outside into the stepped groove (8).

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