Light leakage prevention touch display module

Abstract

The application belongs to the technical field of display, especially to a light leakage prevention touch display module, aiming at the screen bending, the edge gap change leading to light leakage, the existing passive sealing cannot dynamically compensate with the curvature, causing the shading failure or extrusion deformation, the following scheme is proposed, including: adjusting machine base, the side of the adjusting machine base is provided with a rear shell, and the side of the rear shell is provided with a front frame, and the front frame is provided with a touch display screen on the side facing the inside of the rear shell. The light leakage prevention touch display module disclosed by the application has the advantages of real-time monitoring of the edge gap change through the displacement sensor, dynamic expansion compensation of the elastic sealing strip, active shading under the curvature change, complete elimination of the light leakage phenomenon, flexible self-adaptive pressure frame structure, avoidance of rigid interference extrusion, effective prevention of the screen body warping deformation, cooperation with the anti-reverse self-locking mechanism to ensure long-term stability and reliability, and consideration of the dynamic sealing effect and the screen body structure safety effect.

Description

Technical Field

[0001] This invention relates to the field of display technology, and in particular to a light leakage-proof touch display module. Background Technology

[0002] With the continuous development of display technology, curved displays, due to their immersive viewing experience that better conforms to the curvature of the human eye, have seen some high-end display modules begin to support dynamic curvature adjustment in recent years. This technological trend has not only driven innovation in the form design of computer manufacturing, but also provided more ergonomic display solutions for industrial control computers and systems manufacturing. At the same time, this technological path relies heavily on the collaborative breakthroughs in key electronic components such as flexible substrates, precision drive chips, and high-reliability connectors in the core electronics industry. It is a typical example of the collaborative development between downstream terminal applications and upstream core components. In addition, to meet the needs of human-computer interaction, a touch layer is also integrated on the surface of the display module, forming an integrated touch display structure. This further expands the technological boundaries of the manufacturing of computer peripherals such as human-computer interaction devices and graphics output devices, making the curved variable curvature display module not only an image output terminal, but also an intelligent interactive platform integrating input, feedback, and display.

[0003] When the screen of an existing variable curvature display module is adjusted from a flat surface to a curved surface, the gap between the flexible screen and the backlight module at the curved edge will change dynamically. The greater the curvature, the wider the gap, and the backlight light will leak from the gap, forming bright lines or halos at the edge of the screen, i.e., edge light leakage. Currently, conventional solutions mostly use fixed light-shielding foam, elastic sealing strips or light-shielding adhesive layers for passive sealing. However, these methods can only adapt to a single static curvature or small deformation. They cannot automatically compensate for the gap when the curvature changes over a large range, resulting in the failure of light shielding in the curved state, or the screen warping and deformation caused by interference compression in the flat state. Summary of the Invention

[0004] This invention discloses a light leakage prevention touch display module, which aims to solve the technical problem in the background art where light leakage is caused by changes in edge gaps when the screen is bent, and existing passive seals cannot dynamically compensate with curvature, resulting in light shielding failure or extrusion deformation.

[0005] The present invention proposes a light leakage-proof touch display module, comprising: An adjustment base is provided with a rear shell on one side and a front frame on one side of the rear shell. A touch screen is provided on the side of the front frame facing the inside of the rear shell, and a backlight module is provided on the side of the rear shell facing the touch screen. A dynamic edge elastic light-shielding module is installed inside the rear shell. The dynamic edge elastic light-shielding module includes two support plates. A drive motor is provided on one side of each support plate. An adjustment gear is fixedly connected to the drive end of the drive motor.

[0006] In a preferred embodiment, the dynamic edge elastic shading module further includes: Multiple tooling blocks 1 are equidistantly arranged on both sides of the rear shell. The opposite sides of two tooling blocks 1 located on the same side are connected to the same limiting wheel via bearings. Tooling blocks 2 are equidistantly arranged on both sides of the rear shell. The opposite sides of two tooling blocks 2 located on the same side are connected to the same adjustable winding and unwinding frame via bearings. The two adjustable winding and unwinding frames located at the same level have the same elastic sealing strip inside. The outer side of the elastic sealing strip abuts against the outer side of the limiting wheel. Multiple anti-backflow wheels are fixedly connected to one end of multiple adjustable winding and unwinding frames. Each end of the multiple adjustable winding and unwinding frames is fixedly connected to an adjusting plate, which is located on one side of the anti-backflow wheel.

[0007] In a preferred embodiment, the dynamic edge elastic shading module further includes: Multiple limiting rods are fixedly connected to both sides of the rear shell at equal distances. Two smooth holes are opened on one side of the limiting rod. Guide cylinders are slidably connected inside the two smooth holes. The same anti-reverse block is fixedly connected to one end of the two guide cylinders. Two return springs are fixedly connected to the anti-reverse block and the opposite side of the limiting rod. The return springs are located outside the guide cylinders. Multiple guide tubes are fixedly connected to one side of multiple limit rods. Each guide tube has an adjusting rope slidably connected inside. One end of the adjusting rope passes through the limit rod and is fixedly connected to one side of the anti-reverse block.

[0008] In a preferred embodiment, the dynamic edge elastic shading module further includes: Multiple support plates are fixedly connected to both sides of the rear shell at equal distances. One side of two opposing support plates is connected to the same winding drum via a bearing. The other end of the adjusting rope is wound inside the winding drum. One end of each of the multiple winding drums is fixedly connected to a linkage gear. Two linkage gears located on the same side mesh with their corresponding adjusting gears. Multiple fixed blocks are fixedly connected to both sides of the rear shell at equal distances. The same limiting rope is installed inside the two fixed blocks at the same level, and the same limiting compensation slide is slidably connected to the outside of the two limiting ropes on the same side.

[0009] In a preferred embodiment, the dynamic edge elastic shading module further includes: Two displacement sensors are respectively set on one side of two limit compensation slides. The two limit compensation slides are located on one side of two elastic sealing strips. Each side of the two limit compensation slides has two rounded openings. The interior of the multiple rounded openings is slidably connected to limit rods. One end of the two limit rods located on the same side is fixedly connected to the same adaptive pressure frame. Multiple rollers are connected to the inside of two adaptive pressure frames via bearings. The outside of the rollers abuts against one side of the elastic sealing strip. Two compression springs are fixedly connected to the opposite side of the adaptive pressure frame and the limit compensation slide plate. The compression springs are located outside the limit round rod.

[0010] In a preferred embodiment, the dynamic edge elastic shading module further includes: Multiple L-shaped brackets are fixedly connected to both sides of the rear shell at equal intervals. Each side of the multiple L-shaped brackets is connected to a winding drum via a bearing. Movable round rods are provided on both sides of the two limit compensation slides. Multiple take-up and release ropes are fixedly connected to the outside of multiple movable round rods. One end of the take-up and release rope is wound around the inside of the take-up and release drum. A servo motor is installed on one side of multiple L-shaped brackets. The drive end of the servo motor is connected to one end of the take-up and release drum through a coupling.

[0011] In a preferred embodiment, the dynamic edge elastic shading module further includes: Multiple tooling plates are fixedly connected to both sides of the rear shell at equal distances. Each tooling plate has two lifting round holes on one side. Two lifting cylinders are slidably connected inside the lifting round holes. One end of each of the two lifting cylinders on the same side is fixedly connected to the same placement plate. Multiple general-purpose motors are respectively set on one side of multiple placement plates. The drive end of each general-purpose motor is fixedly connected to a cross-shaped locking block, which is located on one side of the adjusting plate. Each side of multiple tooling plates is equipped with an electric hydraulic cylinder, and the drive end of the electric hydraulic cylinder is fixedly connected to one side of the placement plate.

[0012] In a preferred embodiment, it also includes: Multiple U-shaped frames are equidistantly arranged on both sides of the rear shell. Each of the multiple U-shaped frames has a sliding track on one side, and each sliding track is slidably connected to a positioning rod.

[0013] In a preferred embodiment, it also includes: Multiple lifting rods are fixedly connected to one end of multiple positioning rods, and the other end of each positioning rod is fixedly connected to a positioning frame, which is clamped to one side of the backlight module.

[0014] In a preferred embodiment, it also includes: Multiple telescopic springs are fixedly connected to one side of the U-shaped frame and the positioning frame, respectively, and the telescopic springs are located outside the positioning rod.

[0015] As can be seen from the above, the light leakage prevention touch display module provided by the present invention has the ability to monitor the edge gap change in real time through displacement sensor, drive the elastic sealing strip to perform dynamic expansion and contraction compensation, realize active light blocking under curvature change, completely eliminate the light leakage phenomenon, and at the same time adopt a flexible adaptive pressure frame structure to avoid rigid interference compression, effectively prevent screen warping and deformation, and work with anti-reverse self-locking mechanism to ensure long-term stability and reliability, taking into account the beneficial effects of dynamic sealing effect and screen structure safety. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main structure of a light leakage-proof touch display module proposed in this invention; Figure 2 This is a side view of the structure of a light-leakage-proof touch display module proposed in this invention; Figure 3 This is a schematic diagram of the touch screen portion of an anti-light leakage touch display module proposed in this invention; Figure 4 This is a schematic diagram of the backlight module structure of an anti-light leakage touch display module proposed in this invention; Figure 5 for Figure 4 A magnified structural diagram of part A; Figure 6 This is a schematic diagram of the dynamic edge elastic light-shielding module structure of a light-leakage-proof touch display module proposed in this invention; Figure 7 for Figure 6 A schematic diagram of the enlarged structure of part B; Figure 8 This is a schematic diagram of a dynamic edge elastic light-shielding module structure of a light-leakage-proof touch display module proposed in this invention; Figure 9 This is a schematic diagram of the anti-reverse stop wheel structure of an anti-light leakage touch display module proposed in this invention; Figure 10 This is a schematic diagram of the positioning frame structure of an anti-light leakage touch display module proposed in this invention.

[0017] In the diagram: 1. Front frame; 2. Touch screen; 3. Adjustable base; 4. Rear shell; 5. Backlight module; 6. Dynamic edge elastic light-shielding module; 601. Drive motor; 602. Support plate; 603. Take-up drum; 604. Linkage gear; 605. Adjusting gear; 606. Fixing block; 607. Limiting rope; 608. L-bracket; 609. Take-up and unwinding drum; 610. Servo motor; 611. Take-up and unwinding rope body; 612. Limit compensation slide plate; 613. Tooling block one; 614. Limiting wheel; 615. Tooling block two; 616. Adjustable take-up and unwinding frame; 617. Elastic sealing strip; 18. Anti-reverse wheel; 619. Limiting rod; 620. Guide cylinder; 621. Return spring; 622. Guide tube; 623. Adjusting pull rope; 624. Anti-reverse block; 625. Cross block; 626. Self-adaptive pressure frame; 627. Roller; 628. Universal motor; 629. Adjusting plate; 7. Limiting rod; 8. Displacement sensor; 9. Movable rod; 10. Compression spring; 11. Tooling plate; 12. Lifting cylinder; 13. Placement plate; 14. Electric hydraulic cylinder; 15. U-shaped frame; 16. Positioning rod; 17. Lifting rod; 18. Telescopic spring; 19. Positioning frame. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0019] The light leakage prevention touch display module disclosed in this invention is mainly used in scenarios where light leakage is caused by changes in the edge gap when the screen is bent, and existing passive seals cannot dynamically compensate with the curvature, resulting in light shielding failure or compression deformation.

[0020] Reference Figures 1-10 A light-leakage-proof touch display module, comprising: Adjustable base 3, a rear shell 4 is provided on one side of the adjustable base 3, and a front frame 1 is provided on one side of the rear shell 4. A touch screen 2 is provided on the side of the front frame 1 facing the inside of the rear shell 4, and a backlight module 5 is provided on the side of the rear shell 4 facing the touch screen 2. The dynamic edge elastic light-shielding module 6 is located inside the rear shell 4. The dynamic edge elastic light-shielding module 6 includes two support plates 602. A drive motor 601 is provided on one side of each of the two support plates 602. An adjustment gear 605 is fixedly connected to the drive end of the drive motor 601.

[0021] Reference Figures 1-10 In a preferred embodiment, the dynamic edge elastic shading module 6 further includes: Multiple tooling blocks 613 are equidistantly arranged on both sides of the rear shell 4. The opposite sides of two tooling blocks 613 on the same side are connected to the same limiting wheel 614 via bearings. Tooling blocks 615 are equidistantly arranged on both sides of the rear shell 4. The opposite sides of two tooling blocks 615 on the same side are connected to the same adjustable winding and unwinding frame 616 via bearings. The two adjustable winding and unwinding frames 616 at the same level are provided with the same elastic sealing strip 617 inside. The outer side of the elastic sealing strip 617 abuts against the outer side of the limiting wheel 614. Multiple anti-backflow wheels 618 are fixedly connected to one end of multiple adjustable winding and unwinding frames 616. Each end of the multiple adjustable winding and unwinding frames 616 is fixedly connected to an adjusting plate 629, which is located on one side of the anti-backflow wheel 618.

[0022] Reference Figures 1-10 In a preferred embodiment, the dynamic edge elastic shading module 6 further includes: Multiple limiting rods 619 are fixedly connected at equal intervals to both sides of the rear shell 4. Two smooth holes are opened on one side of the limiting rod 619. Guide cylinders 620 are slidably connected inside the two smooth holes. The same anti-reverse block 624 is fixedly connected to one end of the two guide cylinders 620. Two return springs 621 are fixedly connected to the anti-reverse block 624 and the opposite side of the limiting rod 619. The return springs 621 are located outside the guide cylinders 620. Multiple guide tubes 622 are fixedly connected to one side of multiple limit rods 619 respectively. An adjusting pull rope 623 is slidably connected inside each of the multiple guide tubes 622. One end of the adjusting pull rope 623 passes through the limit rod 619 and is fixedly connected to one side of the anti-reverse block 624.

[0023] Reference Figures 1-10 In a preferred embodiment, the dynamic edge elastic shading module 6 further includes: Multiple support plates 602 are fixedly connected at equal intervals to both sides of the rear shell 4. One side of two opposing support plates 602 is connected to the same winding drum 603 via bearings. The other end of the adjusting pull rope 623 is wound inside the winding drum 603. One end of each of the multiple winding drums 603 is fixedly connected to a linkage gear 604. Two linkage gears 604 located on the same side mesh with their corresponding adjusting gears 605. Multiple fixing blocks 606 are fixedly connected at equal intervals to both sides of the rear shell 4. The same limiting rope 607 is provided inside the two fixing blocks 606 located at the same level, and the same limiting compensation slide plate 612 is slidably connected to the outside of the two limiting ropes 607 located on the same side.

[0024] Reference Figures 1-10 In a preferred embodiment, the dynamic edge elastic shading module 6 further includes: Two displacement sensors 8 are respectively set on one side of two limit compensation slide plates 612. The two limit compensation slide plates 612 are located on one side of two elastic sealing strips 617. Each side of the two limit compensation slide plates 612 has two rounded openings. The interior of the multiple rounded openings is slidably connected to limit rods 7. One end of the two limit rods 7 located on the same side is fixedly connected to the same adaptive pressure frame 626. Multiple rollers 627 are connected to the inside of two adaptive pressure frames 626 via bearings. The outside of the rollers 627 abuts against one side of the elastic sealing strip 617. Two compression springs 10 are fixedly connected to the opposite side of the adaptive pressure frame 626 and the limiting compensation slide plate 612. The compression springs 10 are located outside the limiting round rod 7.

[0025] Reference Figures 1-10 In a preferred embodiment, the dynamic edge elastic shading module 6 further includes: Multiple L-shaped brackets 608 are fixedly connected to both sides of the rear shell 4 at equal intervals. Each side of the multiple L-shaped brackets 608 is connected to a winding drum 609 via a bearing. Movable round rods 9 are provided on both sides of the two limit compensation slide plates 612. Multiple take-up and release ropes 611 are fixedly connected to the outside of multiple movable round rods 9. One end of the take-up and release rope 611 is wound around the inside of the take-up and release drum 609. A servo motor 610 is provided on one side of multiple L brackets 608. The drive end of the servo motor 610 is connected to one end of the take-up and release drum 609 through a coupling.

[0026] Reference Figures 1-10 In a preferred embodiment, the dynamic edge elastic shading module 6 further includes: Multiple tooling plates 11 are fixedly connected to both sides of the rear shell 4 at equal distances. Each of the multiple tooling plates 11 has two lifting round holes on one side. Two lifting cylinders 12 are slidably connected inside the multiple lifting round holes. One end of the two lifting cylinders 12 located on the same side is fixedly connected to the same placement plate 13. Multiple general-purpose motors 628 are respectively set on one side of multiple placement plates 13. The drive end of each general-purpose motor 628 is fixedly connected to a cross-shaped locking block 625. The cross-shaped locking block 625 is located on one side of the adjusting plate 629. Each side of multiple tooling plates 11 is provided with an electric hydraulic cylinder 14. The drive end of the electric hydraulic cylinder 14 is fixedly connected to one side of the placement plate 13.

[0027] Specifically, in the initial state, the touch display screen 2 and the backlight module 5 are in a plane or a state with a fixed curvature. The components of the dynamic edge elastic light-shielding module 6 maintain their initial positions. Under the action of the adaptive pressure frame 626, the elastic sealing strip 617 is tightly fitted with the edge of the touch display screen 2 to form an effective seal. When the user drives the back shell 4 to deform by adjusting the base 3, thereby changing the curvature of the touch display screen 2, the joint gap between the backlight module 5 and the edge of the touch display screen 2 will change dynamically. At this time, the displacement sensor 8 located on the limit compensation slide plate 612 immediately monitors the change in edge gap in real time and feeds the displacement signal back to the main control system. Based on the gap change data fed back by the displacement sensor 8, the control system first starts the servo... The servo motor 610 drives the take-up and unwind drum 609 to rotate, performing precise take-up and unwind operations on the take-up and unwind rope body 611. The take-up and unwind rope body 611 drives the limit compensation slide plate 612 to slide precisely horizontally along the direction of the limit rope 607 via the movable round rod 9. The horizontal movement of the limit compensation slide plate 612 drives the adaptive pressure frame 626 and roller 627 on it to move synchronously. Because the adaptive pressure frame 626, under the action of the compression spring 10, always applies a constant elastic pressure to the elastic sealing strip 617 through the roller 627, when the limit compensation slide plate 612 moves towards the edge of the screen, it pushes the elastic sealing strip 617 to extend further, thereby dynamically filling the edge gap increased due to the curvature of the screen. Conversely, when the screen moves towards the edge, the limit compensation slide plate 612 pushes the elastic sealing strip 617 to extend further, thereby dynamically filling the edge gap increased due to the curvature of the screen. When the screen curvature returns to normal, the limit compensation slide plate 612 retracts, and the elastic sealing strip 617 retracts synchronously under the combined action of its own elasticity and the compression spring 10, avoiding excessive compression. When the screen undergoes a significant curvature change or long-term use causes the elastic sealing strip 617 to loosen or become insufficient in length, the system will activate the universal motor 628. The universal motor 628 engages with the adjusting plate 629 through the cross block 625, driving the adjustable winding and unwinding frame 616 to rotate, actively winding or unwinding the elastic sealing strip 617 to adjust its effective working length. During this process, in order to prevent the adjustable winding and unwinding frame 616 from reversing due to vibration or reaction force in the non-driven state, causing the elastic sealing strip 617 to loosen, this invention is equipped with an anti-reverse self-locking mechanism. Its working principle is as follows: When the adjustable take-up and unwind roll 616 needs to be locked, the anti-reverse locking block 624, under the elastic force of the return spring 621, is guided by the guide cylinder 620, and its end engages in the tooth groove of the anti-reverse stop wheel 618, preventing it from rotating in the opposite direction. When it is necessary to release the lock to adjust the length, the drive motor 601 starts, driving the linkage gear 604 to rotate through the adjusting gear 605. The linkage gear 604 drives the take-up roller 603 to rotate and tightens the adjusting rope 623. The adjusting rope 623, guided by the guide tube 622, overcomes the elastic force of the return spring 621 and pulls the anti-reverse locking block 624 out of the tooth groove of the anti-reverse stop wheel 618, thereby releasing the lock. At this time, the general-purpose motor 628 can drive the adjustable take-up and unwind roll 616 to rotate freely.After the elastic sealing strip 617 is retracted, the drive motor 601 reverses, releasing the adjusting rope 623. The anti-reverse locking block 624, under the action of the return spring 621, re-engages with the anti-reverse stop wheel 618, achieving instantaneous self-locking. In specific application scenarios, this invention breaks through the limitations of traditional fixed light-shielding solutions. By setting up a dynamic edge elastic light-shielding module 6, which consists of components such as a displacement sensor 8, a servo motor 610, a rope 611, a limit compensation slide plate 612, and an adaptive pressure frame 626, it can sense changes in the edge gap when the screen bends in real time and actively drive the elastic sealing strip 617 to perform precise expansion and contraction compensation. This design ensures that the elastic sealing strip 617 maintains close and appropriate contact with the edge of the touch display screen 2 throughout the entire stroke of the screen, from a flat surface to any curvature. This effectively and thoroughly eliminates edge bright lines or halos, significantly improving display quality and user viewing experience. Simultaneously, the floating connection structure between the adaptive pressure frame 626 and the compression spring 10 ensures that the roller 627 applies constant and flexible pressure to the elastic sealing strip 617, rather than a rigid interference fit. This flexible force application method, combined with the compressibility of the elastic sealing strip 617 itself, prevents excessive compression of the sealing material from causing additional internal stress on the touch display screen 2 in a flat state or with small curvature, thus effectively preventing screen warping, deformation, or damage, and ensuring screen integrity. The improved geometric flatness and touch accuracy of the screen in planar mode extend the product's lifespan. This invention employs an anti-reverse locking mechanism comprised of an anti-reverse stop wheel 618, an anti-reverse locking block 624, a return spring 621, and an adjusting pull rope 623. This ensures that the adjustable winding and unwinding frame 616 is securely locked in the non-adjustable state, preventing accidental loosening or length changes due to equipment vibration, gravity, or the elastic seal strip 617's own tension rebound. This design guarantees the constant positional accuracy and tension of the elastic seal strip 617 during operation, significantly enhancing the overall light-blocking system. The system ensures stability and reliability during long-term, repeated curvature adjustments. Furthermore, by employing a cooperative structure involving a universal motor 628, a cross-shaped locking block 625, and an adjusting plate 629, the effective working length of the elastic sealing strip 617 can be actively adjusted online. When the sealing strip undergoes slight plastic deformation or wear due to long-term use, the system can actively drive the adjustable winding and unwinding frame 616 for fine-tuning to compensate for its effective length, ensuring consistent sealing performance. This proactive maintenance capability significantly extends the maintenance cycle and overall service life of the shading components, reducing users' subsequent maintenance costs.

[0028] Reference Figure 1 , Figure 3 and Figure 10 In a preferred embodiment, it further includes: Multiple U-shaped frames 15 are equidistantly arranged on both sides of the rear shell 4. Each of the multiple U-shaped frames 15 has a sliding track on one side, and each of the multiple sliding tracks is slidably connected to a positioning rod 16.

[0029] Reference Figure 1 , Figure 3 and Figure 10 In a preferred embodiment, it further includes: Multiple lifting rods 17 are fixedly connected to one end of multiple positioning rods 16, and the other end of each positioning rod 16 is fixedly connected to a positioning frame 19, which is clamped to one side of the backlight module 5.

[0030] Reference Figure 10 In a preferred embodiment, it further includes: Multiple telescopic springs 18 are fixedly connected to one side of the U-shaped frame 15 and the positioning frame 19 on both sides, and the telescopic springs 18 are located outside the positioning rod 16.

[0031] Specifically, in order to ensure the stability of the backlight module 5's position during screen curvature changes and prevent it from shifting and affecting the optical effect, the present invention also provides an auxiliary positioning mechanism. The telescopic spring 18 always applies a pushing force toward the backlight module 5 to the positioning frame 19, so that the positioning frame 19 slides in the U-shaped frame 15 through the positioning rod 16 and is tightly clamped to the edge of the backlight module 5. The lifting rod 17 provides an operation interface for users or external tools to manually lift the positioning frame 19, which is convenient for installation or maintenance. This mechanism ensures that the side of the backlight module 5 is always firmly clamped under different curvature states, preventing it from shifting due to gravity or mechanical stress, thereby ensuring the stability and uniformity of the backlight optical path. In specific application scenarios, by setting up an auxiliary positioning mechanism for the backlight module consisting of a U-shaped frame 15, a positioning rod 16, a telescopic spring 18, and a positioning frame 19, it is ensured that the edge of the backlight module 5 is always elastically and firmly clamped during the change of screen curvature. This effectively prevents the backlight module 5 from being displaced or warped due to mechanical movement, ensuring the accuracy of the backlight source position and the uniformity of light emission, and providing a stable basic optical environment for the dynamic light-shielding module. The two complement each other and jointly improve the final display effect.

[0032] Working Principle: In the initial state, the touch display screen 2 and the backlight module 5 are in a plane or a state with a fixed curvature. The components of the dynamic edge elastic light-shielding module 6 maintain their initial positions. Under the action of the adaptive pressure frame 626, the elastic sealing strip 617 is tightly fitted with the edge of the touch display screen 2 to form an effective seal. When the user drives the back shell 4 to deform by adjusting the base 3, thereby changing the curvature of the touch display screen 2, the joint gap between the backlight module 5 and the edge of the touch display screen 2 will change dynamically. At this time, the displacement sensor 8 located on the limit compensation slide plate 612 immediately monitors the change in edge gap in real time and feeds the displacement signal back to the main control system. Based on the gap change data fed back by the displacement sensor 8, the control system first starts the servo... The servo motor 610 drives the take-up and unwind drum 609 to rotate, performing precise take-up and unwind operations on the take-up and unwind rope body 611. The take-up and unwind rope body 611 drives the limit compensation slide plate 612 to slide precisely horizontally along the direction of the limit rope 607 via the movable round rod 9. The horizontal movement of the limit compensation slide plate 612 drives the adaptive pressure frame 626 and roller 627 on it to move synchronously. Because the adaptive pressure frame 626, under the action of the compression spring 10, always applies a constant elastic pressure to the elastic sealing strip 617 through the roller 627, when the limit compensation slide plate 612 moves towards the edge of the screen, it pushes the elastic sealing strip 617 to extend further, thereby dynamically filling the edge gap increased due to the curvature of the screen. Conversely, when... When the screen curvature returns to normal, the limit compensation slide plate 612 retracts, and the elastic sealing strip 617 retracts synchronously under the combined action of its own elasticity and the compression spring 10, avoiding excessive compression. When the screen undergoes a significant curvature change or the elastic sealing strip 617 becomes loose or insufficient in length due to long-term use, the system will activate the universal motor 628. The universal motor 628 engages with the adjusting plate 629 through the cross block 625, driving the adjustable winding and unwinding frame 616 to rotate, actively winding or unwinding the elastic sealing strip 617 to adjust its effective working length. During this process, in order to prevent the adjustable winding and unwinding frame 616 from reversing due to vibration or reaction force in the non-driven state, causing the elastic sealing strip 617 to loosen, the present invention is equipped with an anti-reverse self-locking mechanism. Its working principle is as follows: When the adjustable take-up and unwind roll 616 needs to be locked, the anti-reverse locking block 624, under the elastic force of the return spring 621, is guided by the guide cylinder 620, and its end engages in the tooth groove of the anti-reverse stop wheel 618, preventing it from rotating in the opposite direction. When it is necessary to release the lock to adjust the length, the drive motor 601 starts, driving the linkage gear 604 to rotate through the adjusting gear 605. The linkage gear 604 drives the take-up roller 603 to rotate and tightens the adjusting rope 623. The adjusting rope 623, guided by the guide tube 622, overcomes the elastic force of the return spring 621 and pulls the anti-reverse locking block 624 out of the tooth groove of the anti-reverse stop wheel 618, thereby releasing the lock. At this time, the general-purpose motor 628 can drive the adjustable take-up and unwind roll 616 to rotate freely.After the elastic sealing strip 617 is retracted, the drive motor 601 reverses, releasing the adjusting rope 623. The anti-reverse locking block 624, under the action of the reset spring 621, re-engages with the anti-reverse stop wheel 618, achieving instantaneous self-locking. During screen curvature changes, to ensure the stability of the backlight module 5's position and prevent it from shifting and affecting optical performance, this invention also includes an auxiliary positioning mechanism. The telescopic spring 18 consistently applies a pushing force towards the backlight module 5 to the positioning frame 19, causing the positioning frame 19 to slide within the U-shaped frame 15 via the positioning rod 16 and be tightly clamped to the edge of the backlight module 5. The lifting rod 17 provides a manual lifting interface for the user or external tools, facilitating installation or maintenance. This mechanism ensures that the sides of the backlight module 5 are always securely clamped under different curvature conditions, preventing displacement due to gravity or mechanical stress, thereby ensuring the stability and uniformity of the backlight optical path.

[0033] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A light-leakage-proof touch display module, characterized in that, include: Adjustment base (3), a rear shell (4) is provided on one side of the adjustment base (3), and a front frame (1) is provided on one side of the rear shell (4). A touch screen (2) is provided on the side of the front frame (1) facing the inside of the rear shell (4), and a backlight module (5) is provided on the side of the rear shell (4) facing the touch screen (2). The dynamic edge elastic light-shielding module (6) is located inside the rear shell (4). The dynamic edge elastic light-shielding module (6) includes two support plates (602). A drive motor (601) is provided on one side of each of the two support plates (602). An adjustment gear (605) is fixedly connected to the drive end of the drive motor (601).

2. The light leakage prevention touch display module according to claim 1, characterized in that, The dynamic edge elastic shading module (6) also includes: Multiple tooling blocks (613) are equidistantly arranged on both sides of the rear shell (4). The opposite sides of two tooling blocks (613) on the same side are connected to the same limiting wheel (614) through bearings. Tooling blocks (615) are equidistantly arranged on both sides of the rear shell (4). The opposite sides of two tooling blocks (615) on the same side are connected to the same adjustable winding and unwinding frame (616) through bearings. The two adjustable winding and unwinding frames (616) at the same level are provided with the same elastic sealing strip (617). The outside of the elastic sealing strip (617) abuts against the outside of the limiting wheel (614). Multiple anti-backflow wheels (618) are fixedly connected to one end of multiple adjustable winding and unwinding frames (616), and one end of each of the multiple adjustable winding and unwinding frames (616) is fixedly connected to an adjusting plate (629), which is located on one side of the anti-backflow wheel (618).

3. The light leakage prevention touch display module according to claim 2, characterized in that, The dynamic edge elastic shading module (6) also includes: Multiple limiting rods (619) are fixedly connected at equal intervals to both sides of the rear shell (4). Two smooth holes are opened on one side of the limiting rod (619). Guide cylinders (620) are slidably connected inside the two smooth holes. The same anti-reverse block (624) is fixedly connected to one end of the two guide cylinders (620). Two return springs (621) are fixedly connected to the opposite side of the anti-reverse block (624) and the limiting rod (619). The return springs (621) are located outside the guide cylinders (620). Multiple guide tubes (622) are fixedly connected to one side of multiple limit rods (619). An adjusting pull rope (623) is slidably connected inside each of the multiple guide tubes (622). One end of the adjusting pull rope (623) passes through the limit rod (619) and is fixedly connected to one side of the anti-reverse block (624).

4. The light leakage prevention touch display module according to claim 3, characterized in that, The dynamic edge elastic shading module (6) also includes: Multiple support plates (602) are fixedly connected at equal intervals to both sides of the rear shell (4). One side of two opposing support plates (602) is connected to the same winding drum (603) via a bearing. The other end of the adjusting rope (623) is wound inside the winding drum (603). One end of each of the multiple winding drums (603) is fixedly connected to a linkage gear (604). Two linkage gears (604) located on the same side mesh with their corresponding adjusting gears (605). Multiple fixed blocks (606) are fixedly connected at equal distances to both sides of the rear shell (4). The same limiting rope (607) is provided inside the two fixed blocks (606) located at the same level, and the same limiting compensation slide plate (612) is slidably connected to the outside of the two limiting ropes (607) located on the same side.

5. A light-leakage-proof touch display module according to claim 4, characterized in that, The dynamic edge elastic shading module (6) also includes: Two displacement sensors (8) are respectively set on one side of two limit compensation slide plates (612). The two limit compensation slide plates (612) are located on one side of two elastic sealing strips (617). Each side of the two limit compensation slide plates (612) has two rounded openings. The interior of the multiple rounded openings is slidably connected to limit rods (7). One end of the two limit rods (7) located on the same side is fixedly connected to the same adaptive pressure frame (626). Multiple rollers (627) are connected to the inside of two adaptive pressure frames (626) via bearings. The outside of the rollers (627) abuts against one side of the elastic sealing strip (617). Two compression springs (10) are fixedly connected to the opposite side of the adaptive pressure frame (626) and the limiting compensation slide plate (612). The compression springs (10) are located outside the limiting round rod (7).

6. A light-leakage-proof touch display module according to claim 5, characterized in that, The dynamic edge elastic shading module (6) also includes: Multiple L-shaped brackets (608) are fixedly connected at equal intervals to both sides of the rear shell (4). Each of the multiple L-shaped brackets (608) has a winding drum (609) connected to the opposite side of the bearing. Movable round rods (9) are provided on both sides of the two limit compensation slide plates (612). Multiple take-up and release ropes (611) are fixedly connected to the outside of multiple movable round rods (9). One end of the take-up and release rope (611) is wound around the inside of the take-up and release drum (609). A servo motor (610) is provided on one side of multiple L brackets (608). The drive end of the servo motor (610) is connected to one end of the take-up and release drum (609) through a coupling.

7. A light-leakage-proof touch display module according to claim 6, characterized in that, The dynamic edge elastic shading module (6) also includes: Multiple tooling plates (11) are fixedly connected at equal distances to both sides of the rear shell (4). Each of the multiple tooling plates (11) has two lifting round holes on one side. Each of the multiple lifting round holes has two lifting cylinders (12) slidably connected inside. One end of each of the two lifting cylinders (12) located on the same side is fixedly connected to the same placement plate (13). Multiple general-purpose motors (628) are respectively set on one side of multiple placement plates (13). The drive end of each general-purpose motor (628) is fixedly connected to a cross-shaped locking block (625). The cross-shaped locking block (625) is located on one side of the adjusting plate (629). Each side of multiple tooling plates (11) is provided with an electric hydraulic cylinder (14). The drive end of the electric hydraulic cylinder (14) is fixedly connected to one side of the placement plate (13).

8. A light-leakage-proof touch display module according to claim 1, characterized in that, Also includes: Multiple U-shaped frames (15) are equidistantly arranged on both sides of the rear shell (4). Each of the multiple U-shaped frames (15) has a sliding track on one side, and each of the multiple sliding tracks is slidably connected to a positioning rod (16).

9. A light-leakage-proof touch display module according to claim 8, characterized in that, Also includes: Multiple lifting rods (17) are fixedly connected to one end of multiple positioning rods (16), and the other end of each positioning rod (16) is fixedly connected to a positioning frame (19). The positioning frame (19) is clamped on one side of the backlight module (5).

10. A light-leakage-proof touch display module according to claim 9, characterized in that, Also includes: Multiple telescopic springs (18) are fixedly connected to one side of the U-shaped frame (15) and the positioning frame (19) on both sides respectively. The telescopic springs (18) are located outside the positioning rod (16).

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