Thin film display device

Abstract

The utility model provides a thin film display device, and relates to the technical field of battery equipment. The thin film display device comprises a lamp box, a backlight module and a side light module, the lamp box is provided with a display window, and the display window is used for displaying a thin film installed in the lamp box; the backlight module is arranged at the end, away from the display window, in the lamp box, the film is located between the display window and the backlight module, and the backlight module can provide backlight for the film. The side light module is arranged in the lamp box, located on one side of the display window and used for providing side light for the thin film; the side light module is located between the film and the display window. According to different sample appearance characteristics, adaptive light conditions can be adjusted, so that the appearance characteristics of the sample are obvious, and observation is facilitated.

Description

Technical Field

[0001] This application relates to the field of battery equipment technology, and more particularly to a thin film display device. Background Technology

[0002] In the manufacturing industry of ultra-thin films such as lithium battery separators, various appearance features or defects inevitably occur during the production process. These appearance features are diverse. Quality personnel often select typical feature or defect samples to train quality inspectors in identification skills or to demonstrate to customers, visitors, and other relevant personnel. Typically, the industry practice involves cutting samples and pasting them on a wall or in a frame. However, under natural light or normal ceiling light, it is almost impossible to distinguish the film's appearance features or defects. In other words, this display method is not conducive to the observer's observation of the film's appearance features. Utility Model Content

[0003] In view of this, the purpose of this application is to overcome the shortcomings of the prior art and provide a thin film display device that can adjust the appropriate lighting conditions according to different sample appearance characteristics, so as to make the appearance characteristics of the sample obvious and facilitate observation.

[0004] This application provides the following technical solution:

[0005] This application provides a thin film display device, including:

[0006] A lightbox having a display window for displaying a film installed inside the lightbox;

[0007] A backlight module is disposed at one end of the light box facing away from the display window, and the film is located between the display window and the backlight module;

[0008] A side-lighting module is disposed inside the light box, and the side-lighting module is located on one side near the display window. The side-lighting module is used to provide side light to the film; wherein, the side-lighting module is located between the film and the display window.

[0009] In some embodiments, the backlight module includes a light homogenizer and a backlight source. The light homogenizer is disposed between the backlight source and the display window, and is located on the optical path formed by the backlight rays emitted by the backlight source. The light homogenizer is used to homogenize the backlight rays.

[0010] In some embodiments, the sidelight module is rotatably disposed inside the light box, and the sidelight module can rotate to adjust the illumination direction.

[0011] In some embodiments, the sidelight module includes a sidelight source and a focusing element. The sidelight source is used to emit sidelight rays, and the focusing element is used to gather the sidelight rays emitted by the sidelight source so that the sidelight rays form parallel light.

[0012] In some embodiments, the side light source is elongated and the side light source and the backlight module are arranged in parallel.

[0013] In some embodiments, the film display device further includes a clamping module disposed inside the light box, the clamping module being used to clamp at least two opposite sides of the film, so that the film is in an unfolded state.

[0014] In some embodiments, the clamping module includes an insert plate and a pressing film, the insert plate and the light box being detachably connected, the insert plate having a light-transmitting portion for transmitting the backlight, the pressing film and the insert plate being detachably connected, the pressing film being located away from the light-transmitting hole, and the pressing film being able to press at least two opposite sides of the film located on the insert plate.

[0015] In some embodiments, the pressure plate and the insert plate are magnetically connected.

[0016] In some embodiments, the insert plate has a positioning groove for receiving the pressing member to limit the pressing member.

[0017] In some embodiments, the light box has a mounting component with a socket on one side wall corresponding to the clamping module. The socket is connected to the interior of the light box, the clamping module is partially inserted through the socket, and the size of the socket is configured to allow the clamping module to enter and exit the light box through the socket.

[0018] The embodiments of this application have the following advantages:

[0019] This application provides a thin film display device that, by combining the functions of backlight and sidelight modules, can highlight subtle differences in thin films under different lighting conditions, enhancing the visibility of thin film surface features. This is particularly suitable for industries requiring high-precision observation and quality control, such as lithium battery separator manufacturing, and is also suitable for training quality inspectors and demonstrating product characteristics to customers or visitors. Furthermore, users can flexibly adjust the backlight color mode according to specific samples and observation needs to achieve optimal observation results. This thin film display device design significantly improves the visualization of thin film appearance features and defects, providing strong support for the quality assessment of thin film materials.

[0020] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 A schematic diagram of the structure of a thin-film display device provided in an embodiment of this application is shown from one perspective;

[0023] Figure 2 This illustration shows a structural schematic diagram from another perspective of a thin-film display device provided by an embodiment of this application.

[0024] Explanation of key component symbols:

[0025] 100 - Backlight module; 110 - Backlight source; 120 - Light distribution element;

[0026] 200-Clamping module; 210-Film pressing component; 220-Insertion plate component; 221-Positioning groove; 222-Light transmission hole;

[0027] 300 - Lightbox; 310 - Mounting components; 320 - Display window;

[0028] 400 - Side light module; 410 - Side light source; 420 - Concentrator;

[0029] 500-Transparent Panel;

[0030] 600-film. Detailed Implementation

[0031] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0032] It should be noted that when an element is said to be "fixed" to another element, it can be directly on the other element or there may be an intervening element. When an element is said to be "connected" to another element, it can be directly connected to the other element or there may be an intervening element. Conversely, when an element is said to be "directly" on another element, there is no intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0033] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," 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 application according to the specific circumstances.

[0034] Furthermore, 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. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the template description is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0036] In the manufacturing industry of ultra-thin films such as lithium battery separators, various appearance features or defects inevitably occur during the production process. These appearance features are diverse. Quality personnel often select typical feature or defect samples to train quality inspectors in identification skills or to demonstrate to customers, visitors, and other relevant personnel. Typically, samples are cut and pasted on walls or in frames. However, under natural light or normal ceiling light, it is almost impossible to distinguish the film's appearance features or defects. In other words, this display method is not conducive to the observer's observation of the film's appearance features.

[0037] like Figure 1 and Figure 2As shown, to solve the above-mentioned technical problems, this application provides a thin film display device, which includes a light box 300, a backlight module 100, and a sidelight module 400. The light box 300 has a display window 320 for displaying a thin film 600 installed inside the light box 300. The backlight module 100 is disposed inside the light box 300 away from the display window 320. The thin film 600 is located between the display window 320 and the backlight module 100. The backlight module 100 can switch between multiple backlight modes, enabling it to provide backlight of multiple colors to the thin film 600. The sidelight module 400 is rotatably disposed inside the light box 300. The sidelight module 400 is located on the side close to the display window 320 and is used to provide sidelight to the thin film 600. The rotation of the sidelight module 400 can adjust the irradiation direction of the sidelight and the angle between the sidelight and the thin film 600. The sidelight module 400 is located between the thin film 600 and the display window 320.

[0038] In these embodiments, the thin film display device provided in this application aims to solve the problem in the prior art that it is difficult to clearly observe the appearance features and defects of ultrathin thin films 600 (such as lithium battery separators) under natural light or ordinary lighting conditions.

[0039] The lightbox 300 has a display window 320 on its front for displaying a sample of the film 600 installed inside. The position of the display window 320 ensures that it is within the illumination range of the backlight module 100, allowing the film 600 to be fully illuminated and easily viewed by an observer through the display window 320. For example, a transparent plate 500 is installed on the display window 320 to improve the airtightness of the lightbox 300.

[0040] The backlight module 100 is located inside the lightbox 300 at the end furthest from the display window 320. The backlight module 100 has the capability to switch between multiple backlight modes and can provide different colors of backlight to adapt to different types of film 600 samples and their specific appearance characteristics, making these characteristics more prominent and easier to observe and analyze. The film 600 is located between the backlight module 100 and the display window 320, so that the light emitted by the backlight module 100 forms the backlight.

[0041] The side-light module 400 is rotatably mounted inside the lightbox 300 and located on one side of the display window 320. The side-light module 400 provides side illumination to the film 600, and its rotation mechanism allows adjustment of the direction of the side light and its angle with the film 600. It should be noted that the side light emitted by the side-light module 400 is parallel light. The side-light module 400 and the backlight module 100 are located on the front and rear sides of the film 600, respectively. The front of the film 600 faces the display window 320, and the rear of the film 600 faces away from the display window 320, ensuring uniform and directional illumination of the film 600 from two different angles, thereby optimizing viewing conditions.

[0042] Clearly, by combining the functions of the backlight and sidelight modules 400, this display device can highlight subtle differences in the thin film 600 under various lighting conditions, enhancing the visibility of the surface features of the thin film 600. This is particularly suitable for industries requiring high-precision observation and quality control, such as lithium battery separator manufacturing, and is also suitable for training quality inspectors and demonstrating product characteristics to customers or visitors. Furthermore, users can flexibly adjust the backlight color mode and the sidelight angle according to specific samples and observation needs to achieve optimal observation results. This thin film display device design significantly improves the visualization of the appearance features and defects of the thin film 600, providing strong support for the quality assessment of the thin film 600 material.

[0043] like Figure 1 and Figure 2 As shown, in some embodiments, the backlight module 100 includes a circuit control unit and a backlight source 110. The backlight source 110 is capable of emitting backlight light of different colors. The backlight source 110 is electrically connected to the circuit control unit, which is used to control the start and stop of the backlight source 110 and to switch different colors.

[0044] In these embodiments, further refinements are made to the backlight module 100 to provide more flexible and precise light control. Specifically, the backlight module 100 includes the following components:

[0045] As the core control unit, the circuit controller is responsible for managing and regulating the operation of the entire backlight system. The circuit controller can control the start and stop of the backlight source 110, receive instructions through preset programs or user interfaces, and adjust the state of the backlight source 110 accordingly.

[0046] For example, the circuit control unit can be a PLC programmable controller, a microcontroller, a single-board computer, or a relay module, etc.

[0047] The backlight source 110 is configured to emit backlight light of different colors, such as red, green, and blue, or, as needed, more colors, such as white or other specific wavelengths. The backlight source 110 is electrically connected to a circuit control unit to ensure control over the adjustment of the backlight color emitted by the backlight source 110.

[0048] Clearly, by employing a backlight source 110 capable of emitting different colors of light, the system can quickly switch backlight colors as needed, adapting to different types of thin film 600 samples and their feature display requirements. Of course, in addition to color control, the circuit control also supports brightness adjustment, allowing users to adjust the light source brightness according to specific circumstances to obtain the best observation effect.

[0049] For example, if RGB three-primary-color light sources are required, the circuit control unit can also generate various intermediate tones by controlling the proportion of each light source, greatly enriching the range of backlight color choices.

[0050] like Figure 1 and Figure 2 As shown, in some embodiments, the backlight module 100 includes a light homogenizer 120, which is disposed between the backlight source 110 and the display window 320, and the light homogenizer 120 is located on the optical path formed by the backlight rays emitted by the backlight source 110. The light homogenizer 120 is used to homogenize the backlight rays of the backlight source 110.

[0051] In these embodiments, a light homogenizer 120 is incorporated into the backlight module 100 to ensure that the light emitted by the backlight source 110 can uniformly illuminate the thin film 600 sample on the display window 320. This configuration is crucial for improving the visualization of the appearance features and defects of the thin film 600.

[0052] The main function of the light homogenizer 120 is to homogenize the light emitted by the backlight source 110, making the light distribution illuminating the thin film 600 more uniform. This helps to eliminate existing hot spots or dark areas, ensuring consistent illumination intensity throughout the entire display area, thereby presenting the surface features of the thin film 600 more clearly and accurately.

[0053] Furthermore, by scattering or diffusing light, the light homogenizer 120 can reduce glare and unwanted reflections, providing a softer and more uniform lighting environment. This is particularly important because any unwanted reflections will interfere with the observation of the surface details of the ultrathin film 600 when observing it.

[0054] Furthermore, the presence of the light-diffusing element 120 significantly improves visual quality, making subtle differences in the thin film 600 easier to observe. This is especially important for applications requiring high-precision observation (such as quality inspection).

[0055] For example, the light-diffusing element 120 is made of a material with high light transmittance and good diffusion properties, such as acrylic sheet, optical-grade PMMA (polymethyl methacrylate), PC (polycarbonate) sheet, etc. Of course, in specific applications, the light-diffusing element 120 can be designed as a flat plate, corrugated, or microstructured surface to optimize the propagation path and distribution of light, depending on actual needs.

[0056] For example, the light homogenizer 120 is located between the backlight source 110 and the display window 320, and is directly in the light path formed by the light emitted from the backlight source 110, ensuring that all light rays undergo homogenization. To achieve better homogenization, single-layer or multi-layer combinations of light homogenizers 120 can be used as needed. Multi-layer structures can further improve light uniformity through the synergistic effect between different layers. Of course, in some advanced designs, the light homogenizer 120 can also be designed to be adjustable in angle or position to adjust the uniformity of light according to the specific application.

[0057] like Figure 1 and Figure 2 As shown, in some embodiments, the sidelight module 400 includes a sidelight source 410 and a focusing element 420. The sidelight source 410 is used to emit sidelight rays, and the focusing element 420 is used to gather the sidelight rays emitted by the sidelight source 410 so that the sidelight rays form parallel light.

[0058] In these embodiments, the sidelight module 400 includes not only a sidelight source 410 that emits sidelight rays, but also a focusing element 420 for concentrating these rays, ensuring that the sidelight rays can form parallel light, thereby providing more concentrated and uniform side lighting.

[0059] The side light source 410 is the core component of the side light module 400, responsible for emitting side light rays. LEDs (light-emitting diodes) are typically chosen as the side light source 410, offering advantages such as high efficiency, long lifespan, low heat generation, and adjustable brightness and color. The side light sources 410 can be arranged along one or both sides of the display window 320 to ensure sufficient side light from different angles. Alternatively, if one is damaged, the other can continue to be used.

[0060] The main function of the light-concentrating element 420 is to focus the scattered light emitted by the side light source 410 and make it as parallel as possible. By using lenses, mirrors, lampshades, or other optical elements, the light-concentrating element 420 can adjust the light path, reduce light diffusion, and ensure that the light maintains high directionality and intensity when it illuminates the thin film 600. One commonly used light-concentrating element 420 is a convex lens, which can focus diverging light into parallel light through refraction. If a reflective design is used, a parabolic mirror can be used to achieve a similar effect.

[0061] Clearly, by combining the side-light source 410 and the focusing element 420, the side-light module 400 can form stable and concentrated side illumination on the surface of the thin film 600, significantly improving the visualization of the surface features of the thin film 600. Specifically, the use of parallel light reduces unnecessary scattering and reflection, enhances the contrast of surface details on the thin film 600, and makes subtle differences more apparent. Furthermore, since the light is almost parallel to the surface of the thin film 600, it can reduce shadow problems caused by irregular surfaces, providing a clearer observation environment.

[0062] like Figure 1 and Figure 2 As shown, in some embodiments, the side light source 410 is elongated, and the side light source 410 and the backlight module are arranged in parallel.

[0063] In these embodiments, it is ensured that the sidelight can uniformly illuminate the entire side of the film 600 sample, providing a more consistent and effective illumination effect. The sidelight source 410 is elongated and can be a linearly arranged LED strip or a tubular light source. The elongated light source can provide a continuous and uniform light distribution along one side of the display window 320, avoiding the problem of localized over-brightness or dark areas that may be caused by point light sources. Compared to multiple dispersed small light sources, the elongated light source occupies less space, which helps to simplify the device structure and improve the flexibility of internal component layout.

[0064] The side-light source 410, the film 600, and the display window 320 are placed parallel to each other to ensure that the angle between the light and the film 600 is the same. This parallel arrangement ensures that the side light maintains a consistent direction and intensity throughout the display area, reducing uneven lighting caused by changes in angle.

[0065] For example, if the display window 320 is set to be square and the film 600 is in an unfolded state, then the side light source 410 extends along one side line of the film 600, and the rotation axis of the side light module 400 is parallel to the extension direction of the side light source 410.

[0066] like Figure 1 and Figure 2 As shown, in some embodiments, the film display device further includes a clamping module 200, which is disposed inside the light box 300. The clamping module 200 is used to clamp at least two opposite sides of the film 600 so that the film 600 is in an unfolded state.

[0067] In these embodiments, the film display device also includes a clamping module 200 disposed within the lightbox 300 for clamping at least two opposite sides of the film 600 to ensure that the film 600 is in a flat, unfolded state. This design helps maintain the flatness and stability of the film 600, thereby improving the observation effect.

[0068] The main function of the clamping module 200 is to ensure that the film 600 remains flat throughout the display process, avoiding observation errors caused by looseness or wrinkles. By clamping the opposite sides of the film 600, any movement or deformation of the film 600 can be effectively prevented.

[0069] Furthermore, the clamping module 200 meets the need for rapid sample replacement, allowing users to easily install and remove samples without damaging the film 600. This quick-load mechanism significantly improves work efficiency, especially in applications requiring frequent replacement of different film 600 samples. Simultaneously, the clamping module 200 should minimize direct contact pressure on the film 600 to avoid scratching or damaging its surface.

[0070] For example, using a soft, non-marking material (such as a rubber pad) as the clamping surface can protect the integrity of the film 600 while ensuring clamping force.

[0071] For example, the clamping module 200 uses mechanical clamps, such as spring clips or screw clips, to securely fix the film 600 manually. Of course, for highly automated systems, pneumatic or electric clamping mechanisms can be used, with the control system automatically clamping and releasing the film 600. Alternatively, if the film 600 is metallized or has a magnetic coating, it can be fixed using magnets for non-contact adsorption, a method that is simple and does not damage the film 600. Alternatively, for very thin or sensitive films 600, flexible clamping systems, such as vacuum adsorption plates, can be used to firmly adsorb the film 600 onto their surfaces using negative pressure.

[0072] Regarding the position of the clamping module 200, the clamping module 200 is usually set inside the light box 300 near the display window 320 to ensure that the edge of the film 600 can be effectively clamped without affecting the light illumination.

[0073] like Figure 1 and Figure 2 As shown, in some embodiments, the clamping module 200 includes an insert plate 220 and a pressing film 210. The insert plate 220 and the light box 300 are detachably connected. The insert plate 220 has a light-transmitting portion for transmitting backlight. A film 600 is laid on the insert plate 220 and covers the light-transmitting hole 222. The pressing film 210 and the insert plate 220 are detachably connected. The pressing film 210 is away from the light-transmitting portion, and the pressing film 210 can at least press the opposite sides of the film 600 located on the insert plate 220.

[0074] In these embodiments, the clamping module 200 enables stable fixation and quick replacement of the film 600 while ensuring effective light transmission. Specifically, the clamping module 200 includes an insert plate 220 and a pressing film member 210, which work together to achieve these functions.

[0075] The insert plate 220 is detachably connected to the light box 300, allowing for easy installation and removal by the user as needed. The light-transmitting portion is configured as a light-passing hole 222. The insert plate 220 has a light-passing hole 222 that allows backlight to pass through, thereby illuminating the film 600 sample on the display window 320. For example, the light-passing hole 222 can be circular, square, triangular, or elliptical, etc.

[0076] The thin film 600 is laid on the insert plate 220 and covers the light-transmitting hole 222 to ensure that light can be evenly irradiated onto the thin film 600.

[0077] The film-pressing component 210 and the insert plate component 220 are also detachably connected for easy operation. The film-pressing component 210 is located away from the light-transmitting hole 222 to avoid blocking light. The film-pressing component 210 can at least press the opposite sides of the film 600 located on the insert plate component 220 to ensure that the film 600 remains flat and does not move during display. For example, the film-pressing component 210 can achieve the pressing of the film 600 by a spring, screw, or other mechanical structure to ensure sufficient pressure without damaging the film 600.

[0078] Of course, to accommodate films 600 of different sizes and types, the pressing component 210 can be designed to be adjustable, allowing users to adjust the clamping force and position according to actual conditions. In other words, by combining the insert plate 220 and the pressing component 210, the clamping module 200 not only ensures that the film 600 remains flat and stable throughout the display process, but also provides the ability to quickly change samples.

[0079] like Figure 1 and Figure 2 As shown, in some embodiments, the pressure plate member 210 and the insert plate member 220 are magnetically connected.

[0080] In these embodiments, the pressure plate 210 and the insert plate 220 are magnetically connected, which not only simplifies the installation and disassembly process, but also provides a quick and secure fixing method.

[0081] The insert plate 220 can be made of ferrous material or a component containing magnetic materials, while the film pressing component 210 has a built-in strong magnet or also uses magnetic materials. By selecting a suitable type of magnet (such as a neodymium iron boron magnet), sufficient adsorption force can be ensured while maintaining ease of operation. In actual use, the user only needs to bring the film pressing component 210 close to the insert plate 220, and the two will automatically attract and firmly connect; disassembly is also as simple as gently pulling the film pressing component 210 apart. The entire process requires no additional tools, greatly improving the speed and efficiency of changing the film 600 samples.

[0082] Furthermore, since the magnetic connection is non-fixed, the user can flexibly adjust the position of the pressing component 210 according to different sizes or types of films 600. Of course, multiple magnetic points can be set at different positions of the insert component 220, allowing the pressing component 210 to be fixed in multiple positions to adapt to different needs.

[0083] To ensure that the pressing component 210 can uniformly press the film 600, magnets can be evenly distributed on the insert component 220 to provide a stable adsorption force. For example, the magnets can be embedded inside the insert component 220, which neither affects the appearance nor prevents external interference.

[0084] Alternatively, the portion of the pressing element 210 that contacts the film 600 should be made of a soft material with a slight texture, such as a rubber pad, which can both increase friction and protect the surface of the film 600.

[0085] It is important to emphasize that the rapid loading and unloading mechanism significantly improves the speed of replacing the 600 film samples, especially in applications where frequent sample replacement is required.

[0086] like Figure 1 and Figure 2 As shown, in some embodiments, the insert plate 220 has a positioning groove 221 for receiving the pressing plate 210 to limit the pressing plate 210.

[0087] In these embodiments, the insert plate 220 is designed with a positioning groove 221 for accommodating and positioning the pressing piece 210. This design not only ensures the precise positioning of the pressing piece 210, but also enhances the stability and reliability of the entire clamping module 200.

[0088] The main function of the positioning groove 221 is to provide a fixed receiving space for the pressing part 210, ensuring that it will not shift or slide during use. By designing appropriate size and shape, the positioning groove 221 can effectively limit the position of the pressing part 210, ensuring that it is always located in the correct working area.

[0089] In other words, even under slight vibration or external interference, the positioning groove 221 can maintain the stability of the pressing component 210, avoiding the problem of the film 600 not being securely fixed due to loosening. Furthermore, the pressed component 210, after being positioned, can apply pressure to the film 600 more evenly, ensuring that the film 600 remains flat and wrinkle-free throughout the entire display process.

[0090] Furthermore, users can complete the installation simply by placing the molding die 210 into the positioning slot 221, without any additional adjustments or calibrations, greatly improving work efficiency. In other words, the presence of the positioning slot 221 makes the installation of the molding die 210 more intuitive and reduces the possibility of misoperation.

[0091] For example, the shape of the positioning groove 221 should match that of the film pressing component 210, such as using a strip, rectangle, or other suitable geometry to ensure optimal positioning effect. The depth and width of the positioning groove 221 should be reasonably set according to the actual dimensions of the film pressing component 210 to ensure the firm embedding of the film pressing component 210, facilitate control of the tension of the film 600, and not hinder its magnetic connection function.

[0092] In some embodiments, the light box 300 is provided with a mounting member 310 with a socket on one side wall corresponding to the clamping module 200. The socket is connected to the interior of the light box 300, and the clamping module 200 is partially inserted through the socket. The size of the socket is configured to allow the clamping module 200 to enter and exit the light box 300 through the socket.

[0093] In these embodiments, this design allows the clamping module 200 to enter and exit the light box 300 through the connector, thereby enabling quick installation and removal.

[0094] The socket is located on the top side wall of the light box 300, allowing users to operate it from above without flipping or moving the light box 300. The socket directly connects to the internal space of the light box 300, ensuring that the clamping module 200 can smoothly enter and be positioned in the correct working position. The socket size is configured to accommodate the clamping module 200 without being too large to ensure structural stability. This reasonable size allows users to easily insert or remove the clamping module 200, reducing operational difficulty and time.

[0095] Of course, a sealing strip or other sealing device can be installed around the socket to ensure that light does not leak from the socket and to prevent dust and other impurities from entering the interior of the light box 300.

[0096] To prevent the clamping module 200 from accidentally slipping out, a locking mechanism (such as a buckle, bolt, etc.) can be designed at the socket to ensure that it is firmly fixed during use.

[0097] During use, users simply need to align the clamping module 200 with the socket and gently push it in to complete the installation; disassembly is equally simple and quick, improving work efficiency. The inner wall of the socket can be designed with a guiding shape to help the clamping module 200 accurately enter the predetermined position and ensure its stable fixation within the light box 300.

[0098] For example, the clamping module 200 uses a magnetic connection, and the wall of the light box 300 around the socket can also have built-in magnets to further enhance the reliability of the fixation. The magnetic force helps the clamping module 200 automatically align with the socket, simplifying the installation process.

[0099] For example, the mounting component 310 is configured as a slot, and the clamping module 200 is inserted into the slot. Optionally, if the slot is configured with the insertion port facing upwards, the fixing structure can be omitted.

[0100] In all examples shown and described herein, any specific values ​​should be interpreted as merely exemplary and not as limitations; therefore, other examples of exemplary embodiments may have different values.

[0101] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0102] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these modifications and improvements all fall within the protection scope of this application.

Claims

1. A thin film display device, characterized by comprising: The thin film display device comprises: a light box having a display window for displaying a thin film installed in the light box; a backlight module arranged in the light box away from the display window, the thin film being located between the display window and the backlight module; a sidelight module arranged in the light box, the sidelight module being located close to one side of the display window, the sidelight module being used for providing sidelight for the thin film; wherein the sidelight module is located between the thin film and the display window.

2. The thin film display device of claim 1, wherein The backlight module comprises a light uniformizing piece and a backlight light source, the light uniformizing piece being arranged between the backlight light source and the display window, and the light uniformizing piece being located on a light path formed by backlight light rays emitted by the backlight light source, the light uniformizing piece being used for uniformizing the backlight light rays.

3. The thin film display device of claim 1, wherein The sidelight module is rotationally arranged in the light box, the sidelight module being able to rotate to adjust the irradiation direction.

4. The thin film display device of claim 1, wherein The sidelight module comprises a sidelight light source and a light collecting piece, the sidelight light source being used for emitting sidelight light rays, the light collecting piece being used for collecting the sidelight light rays emitted by the sidelight light source, so that the sidelight light rays form parallel light.

5. The film display apparatus of claim 4, wherein The sidelight light source is in a strip shape, and the sidelight light source and the backlight module are arranged in parallel.

6. The thin film display device of claim 1, wherein The thin film display device further comprises a clamping module, the clamping module being arranged in the light box, the clamping module being used for clamping at least opposite sides of the thin film, so that the thin film is in an unfolded state.

7. The film display apparatus of claim 6, wherein The clamping module comprises an insertion plate and a film pressing piece, the insertion plate and the light box being detachably connected, the insertion plate having a light transmission part for transmitting the backlight, the film pressing piece and the insertion plate being detachably connected, the film pressing piece being away from the light transmission part, and the film pressing piece being able to press at least opposite sides of the thin film located on the insertion plate.

8. The film display apparatus of claim 7, wherein The film pressing piece and the insertion plate are magnetically connected.

9. The thin film display device of claim 7 or 8, wherein, The insertion plate has a positioning groove for accommodating the film pressing piece to limit the film pressing piece.

10. The thin film display device of claim 6, wherein The light box is provided with a mounting member having a socket on a side wall corresponding to the clamping module, the socket being in communication with the inside of the light box, the clamping module being partially arranged in the socket, and the size of the socket being configured to enable the clamping module to enter and exit the light box through the socket.

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