Liquid crystal display screen structure for improving light leakage

Abstract

The invention discloses a liquid crystal display screen structure for improving light leakage, and relates to the technical field of liquid crystal display screens, the liquid crystal display screen structure for improving light leakage comprises a display screen, the front side of the display screen is fixedly connected with the rear side of an edge pressing strip, and a shielding device for shielding ambient light is arranged on the side face of the display screen. When the liquid crystal display screen structure for improving light leakage is used, a hand rocker is shaken, a rotating rod is rotated, at the moment, a protrusion on the rotating rod slides in a spiral groove of an L-shaped block, the L-shaped block is close to the hand rocker and slides forwards on a fixing table, and at the moment, the L-shaped block drives a side baffle to slide forwards to shield ambient light on the side face; the problem that the side ambient light interferes with the display screen is solved, so that the use impression is improved; the side baffles drive the extrusion blocks to move forwards and extrude the top baffle to rotate forwards, ambient light from the upper end of the screen is shielded, the problem of top ambient light interference is solved, and external interference is further reduced.

Description

Technical Field

[0001] This invention relates to the field of liquid crystal display technology, specifically to a liquid crystal display structure for improving light leakage. Background Technology

[0002] The monitor's sealing strip (usually rubber or adhesive strip) is located between the screen bezel and the backlight module. Under normal conditions, it should fit tightly to prevent backlight leakage. If the sealing strip becomes loose due to aging, deformation, or improper installation, tiny gaps may appear between the edges and the backlight module, leading to light leakage.

[0003] Patent publication number CN222461836U discloses a liquid crystal display structure for improving light leakage. It includes: a liquid crystal display body, an IC chip, and a heat-conducting component. The liquid crystal display body has a bonding area; the IC chip is bonded to the bonding area by a conductive adhesive film; the heat-conducting component is disposed on the bonding area and surrounds the periphery of the IC chip. This application places the heat-conducting component on the bonding area and arranges it around the periphery of the bonding area. Thus, during IC chip bonding, heat can be dissipated promptly through the heat-conducting component, reducing deformation of the bonding area corresponding to the liquid crystal display body caused by IC chip bonding. This reduces light leakage caused by bonding and improves product yield.

[0004] The aforementioned LCD screen structure designed to improve light leakage fails to consider the impact of ambient light on screen usage. If the screen is used in an environment with strong ambient light interference, the ambient light will affect the normal operation of the screen, resulting in poor performance and affecting the user experience. Summary of the Invention

[0005] In view of the shortcomings of the prior art, the present invention provides a liquid crystal display structure for improving light leakage, thereby solving the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solution: a liquid crystal display structure for improving light leakage, including a display screen, the front side of the display screen being fixedly connected to the rear side of the edge strip, a blocking device for blocking ambient light being provided on the side of the display screen, a squeezing device for squeezing the edge strip to reduce light leakage being provided on the front side of the display screen, and a heat dissipation device for opening heat dissipation holes being provided on the front side of the display screen. The pressing and blocking device includes a side baffle, a rocker arm, a rotating rod, a fixed platform, an L-block, a top baffle, a first torsion spring, and a pressing block; the outer side of the display screen and the inner side of the side baffle are slidably connected, and the outer side of the display screen and the inner side of the fixed platform are fixedly connected, so that the side baffle slides back and forth on the display screen to block ambient light from the side.

[0007] According to the above technical solution, the inner wall of the fixed platform is rotatably connected to the outer wall of the hand crank, the output end of the hand crank is fixedly connected to the front end of the rotating rod, the lower end of the fixed platform is slidably connected to the upper end of the L block, and the upper end of the L block is fixedly connected to the lower end of the side baffle. The inner wall of the L block is threadedly connected to the outer wall of the rotating rod, so that when the protrusion on the rotating rod rotates in the spiral groove on the L block, it can drive the L block to move.

[0008] According to the above technical solution, the outer wall of the display screen is rotatably connected to the inner wall of the top baffle, the outer side of the top baffle is fixedly connected to one end of the first torsion spring, and the other end of the first torsion spring is fixedly connected to the inner end of the display screen, so that the top baffle is reset under the action of the first torsion spring after being free from external force.

[0009] According to the above technical solution, the rear side of the side baffle is fixedly connected to the front side of the extrusion block, so that the side baffle drives the extrusion block to move synchronously.

[0010] According to the above technical solution, the extrusion device includes a fixed block, a connecting block, a short rod, a lever, a rubber roller, a second torsion spring, a return spring, and a pressing block. The front side of the display screen is fixedly connected to the rear side of the fixed block, and the front side of the display screen is fixedly connected to the rear side of the connecting block. The lower end of the connecting block is fixedly connected to the upper end of the short rod. The outer wall of the short rod is rotatably connected to the inner wall of the lever. The upper side of the lever is fixedly connected to the lower end of the rubber roller. The rubber roller is made of a very rough rubber material with great friction, so that when the side baffle rubs against the rubber roller, it can pull the rubber roller to move.

[0011] According to the above technical solution, the lower end of the short rod is fixedly connected to one end of the second torsion spring, and the other end of the second torsion spring is fixedly connected to the lower end of the lever. The rear side of the fixed block is fixedly connected to one end of the return spring, the other end of the return spring is fixedly connected to the front side of the pressure block, and the upper end of the pressure block is slidably connected to the lower side of the fixed block.

[0012] According to the above technical solution, the heat dissipation device includes an extrusion L-rod, an extrusion rod, a rotating rod, a third torsion spring, a tension spring, and a heat dissipation plate. The front side of the pressing block is fixedly connected to the rear side of the extrusion L-rod, and the upper end of the extrusion L-rod is fixedly connected to the lower end of the extrusion rod, so that the inclined surface of the pressing block fits against the inclined surface of the pressing strip, which can more gently and evenly extrude the pressing strip.

[0013] According to the above technical solution, the outer wall of the fixed platform is rotatably connected to the inner wall of the rotating rod, the upper end of the rotating rod is fixedly connected to one end of the third torsion spring, and the other end of the third torsion spring is fixedly connected to the upper end of the fixed platform. The inner side of the fixed platform is fixedly connected to one end of the pulling spring, and the other end of the pulling spring is fixedly connected to the outer side of the heat sink plate. The rear side of the heat sink plate is slidably connected to the front side of the display screen, so that the display screen below the heat sink plate is provided with heat dissipation holes.

[0014] This invention provides a liquid crystal display structure for improving light leakage. It has the following beneficial effects: (1) By setting up a pressing and blocking device, the present invention can rotate the rotating rod by shaking the hand crank. At this time, the protrusion on the rotating rod slides in the spiral groove of the L block, causing the L block to slide forward close to the hand crank onto the fixed platform. At this time, the L block drives the side baffle to slide forward, blocking the ambient light from the side, thus solving the problem of ambient light from the side interfering with the display screen and improving the user experience. The side baffle drives the pressing block to move forward and presses the top baffle to rotate forward, blocking the ambient light from the top of the screen, thus solving the problem of ambient light interference from the top and further reducing external interference.

[0015] (2) The present invention sets up a squeezing device so that when the side baffle moves forward, the side baffle squeezes the rubber roller. Due to the material properties of the rubber roller, it has a large friction force, which is greater than the elastic coefficient of the second torsion spring, causing the rubber roller to move forward. The lever is rotated through the short rod, which squeezes the edge block to move backward, so that the edge block squeezes the edge strip, reducing light leakage and solving the problem of serious light leakage caused by side light leakage, thus blocking backlight leakage.

[0016] (3) By setting up a heat dissipation device, when the pressing block moves backward, the pressing block presses the rotating rod through the cooperation of the pressing L rod and the pressing rod. When the rotating rod rotates, it presses the heat dissipation plate and opens the heat dissipation hole under the display screen. This prevents the display screen from being blocked by the sides and top, which would affect the heat dissipation effect of the display screen. By opening the heat dissipation hole on the front of the device, heat dissipation is convenient. At the same time, due to the presence of the top baffle, there is no need to worry about dust entering. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a partial structural diagram of the shielding device of the present invention; Figure 3 This is a schematic diagram of the extrusion device structure of the present invention; Figure 4 For the present invention Figure 3 Enlarged schematic diagram of structure A; Figure 5 This is a schematic diagram of the heat dissipation device of the present invention.

[0018] In the diagram: 1. Display screen; 2. Edge pressing strip; 3. Covering device; 301. Side baffle; 302. Hand crank; 303. Rotating rod; 304. Fixed platform; 305. L-block; 306. Top baffle; 307. First torsion spring; 308. Extrusion block; 4. Extrusion device; 401. Fixed block; 402. Connecting block; 403. Short rod; 404. Lever; 405. Rubber roller; 406. Second torsion spring; 407. Return spring; 408. Edge pressing block; 5. Heat dissipation device; 501. Extrusion L-bar; 502. Extrusion rod; 503. Rotating rod; 504. Third torsion spring; 505. Pulling spring; 506. Heat dissipation plate. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Please see Figures 1-5 One embodiment of the present invention is: a liquid crystal display structure for improving light leakage, including a display screen 1, the front side of the display screen 1 is fixedly connected to the rear side of the edge strip 2, and a blocking device 3 for blocking ambient light is provided on the side of the display screen 1. The shielding device 3 includes a side baffle 301, a hand crank 302, a rotating rod 303, a fixed platform 304, an L-block 305, a top baffle 306, a first torsion spring 307, and a pressing block 308. The outer side of the display screen 1 is slidably connected to the inner side of the side baffle 301, and the outer side of the display screen 1 is fixedly connected to the inner side of the fixed platform 304. The side baffle 301 slides back and forth on the display screen 1 to block ambient light from the side. The inner wall of the fixed platform 304 is rotatably connected to the outer wall of the hand crank 302. The output end of the hand crank 302 is fixedly connected to the front end of the rotating rod 303. The lower end of the fixed platform 304 is slidably connected to the upper end of the L-block 305, and the upper end of the L-block 305 is... The lower end of the side baffle 301 is fixedly connected, and the inner wall of the L block 305 is threadedly connected to the outer wall of the rotating rod 303, so that when the protrusion on the rotating rod 303 rotates in the spiral groove on the L block 305, it can drive the L block 305 to move. The outer wall of the display screen 1 is rotatably connected to the inner wall of the top baffle 306. The outer side of the top baffle 306 is fixedly connected to one end of the first torsion spring 307, and the other end of the first torsion spring 307 is fixedly connected to the inner end of the display screen 1, so that the top baffle 306 is reset under the action of the first torsion spring 307 after it is not subjected to external force. The rear side of the side baffle 301 is fixedly connected to the front side of the extrusion block 308, so that the side baffle 301 drives the extrusion block 308 to move synchronously.

[0021] Crank the hand crank 302 to rotate the rotating rod 303. At this time, the protrusion on the rotating rod 303 slides in the spiral groove of the L block 305, causing the L block 305 to slide forward onto the fixed platform 304 close to the hand crank 302. At this time, the L block 305 drives the side baffle 301 to slide forward, blocking the ambient light from the side and solving the problem of ambient light from the side interfering with the display screen 1, thereby improving the user experience. The side baffle 301 drives the extrusion block 308 to move forward and extrudes the top baffle 306 to rotate forward, blocking the ambient light from the top of the screen, thus solving the problem of top ambient light interference and further reducing external interference.

[0022] In this embodiment, when there is some light leakage on the display screen 1, the hand crank 302 is manually rotated. When the hand crank 302 is manually rotated, it drives the rotating rod 303 to rotate. As the rotating rod 303 rotates, the protrusion on the rotating rod 303 slides within the spiral groove on the inner wall of the L-block 305. When the protrusion on the rotating rod 303 slides within the spiral groove on the inner wall of the L-block 305, the L-block 305 gradually moves closer to the hand crank 302 under the action of the spiral groove. As the L-block 305 gradually moves closer to the hand crank 302, it slides onto the fixed platform 3. At the lower end of 04, when L block 305 slides at the lower end of the fixed platform 304, L block 305 causes the side baffle 301 to slide forward, blocking the ambient light from the side; conversely, after use, the hand crank 302 is manually rotated in the opposite direction. When the hand crank 302 is manually rotated in the opposite direction, the hand crank 302 causes the rotating rod 303 to rotate in the opposite direction. When the rotating rod 303 rotates in the opposite direction, the protrusion on the rotating rod 303 slides in the spiral groove on the inner wall of L block 305. When the protrusion on the rotating rod 303 slides in the spiral groove on the inner wall of L block 305, L block 305 is in the spiral groove. Under the action of the hand crank 302, L-block 305 gradually moves away from the hand crank 302. When L-block 305 gradually moves away from the hand crank 302, it slides to the lower end of the fixed platform 304. When L-block 305 slides to the lower end of the fixed platform 304, it drives the side baffle 301 to slide backward, resetting the equipment. When the side baffle 301 moves forward, it drives the extrusion block 308 to move synchronously. When the side baffle 301 drives the extrusion block 308 to move forward, the extrusion block 308 collides with the top baffle 306. When the extrusion block 308 collides with the top baffle 306, the top baffle... When the top baffle 306 rotates forward, it blocks the top of the screen. Conversely, when the side baffle 301 moves backward, it drives the pressing block 308 to move synchronously. When the side baffle 301 drives the pressing block 308 to move backward, the pressing block 308 moves away from the top baffle 306. When the pressing block 308 moves away from the top baffle 306, the top baffle 306 is no longer compressed. When the top baffle 306 is no longer compressed, it rotates backward under the action of the first torsion spring 307, thus resetting the equipment.

[0023] Please see Figures 1-5Based on the above embodiments, in another embodiment of the present invention, a pressing device 4 for reducing light leakage is provided on the front side of the display screen 1 to press the edge strip 2. The pressing device 4 includes a fixing block 401, a connecting block 402, a short rod 403, a lever 404, a rubber roller 405, a second torsion spring 406, a return spring 407, and a pressing block 408. The front side of the display screen 1 is fixedly connected to the rear side of the fixing block 401, and the front side of the display screen 1 is fixedly connected to the rear side of the connecting block 402. The lower end of the connecting block 402 is fixedly connected to the upper end of the short rod 403. The outer wall of the short rod 403 is rotatably connected to the inner wall of the lever 404. The upper side of 404 is fixedly connected to the lower end of the rubber roller 405. The rubber roller 405 is made of very rough rubber material with great friction so that when the side baffle 301 rubs against the rubber roller 405, it can pull the rubber roller 405 to move. The lower end of the short rod 403 is fixedly connected to one end of the second torsion spring 406, and the other end of the second torsion spring 406 is fixedly connected to the lower end of the lever 404. The rear side of the fixing block 401 is fixedly connected to one end of the return spring 407, and the other end of the return spring 407 is fixedly connected to the front side of the pressing block 408. The upper end of the pressing block 408 is slidably connected to the lower side of the fixing block 401.

[0024] When the side baffle 301 moves forward, it squeezes the rubber roller 405. Due to the material properties of the rubber roller 405, it has a large friction force, which is greater than the elastic coefficient of the second torsion spring 406. This causes the rubber roller 405 to move forward and rotates the lever 404 through the short rod 403, squeezing the edge block 408 backward. This causes the edge block 408 to squeeze the edge strip 2, reducing light leakage and solving the problem of severe light leakage caused by side light leakage, thus blocking backlight leakage.

[0025] The front side of the display screen 1 is equipped with a heat dissipation device 5 with ventilation holes. The heat dissipation device 5 includes a pressing L-bar 501, a pressing rod 502, a rotating rod 503, a third torsion spring 504, a tension spring 505, and a heat dissipation plate 506. The front side of the pressing block 408 is fixedly connected to the rear side of the pressing L-bar 501, and the upper end of the pressing L-bar 501 is fixedly connected to the lower end of the pressing rod 502, so that the inclined surface of the pressing block 408 fits against the inclined surface of the pressing strip 2, which can more gently and evenly press the pressing strip 2. The fixed platform 30 The outer wall of 4 is rotatably connected to the inner wall of the rotating rod 503. The upper end of the rotating rod 503 is fixedly connected to one end of the third torsion spring 504, and the other end of the third torsion spring 504 is fixedly connected to the upper end of the fixed platform 304. The inner side of the fixed platform 304 is fixedly connected to one end of the pull spring 505, and the other end of the pull spring 505 is fixedly connected to the outer side of the heat sink 506. The rear side of the heat sink 506 is slidably connected to the front side of the display screen 1, so that the display screen 1 below the heat sink 506 is provided with heat dissipation holes.

[0026] This invention incorporates a heat dissipation device 5. When the pressing block 408 moves backward, it presses the rotating rod 503 by the cooperation of the pressing rod 501 and the pressing rod 502. When the rotating rod 503 rotates, it presses the heat dissipation plate 506, opening the heat dissipation holes under the display screen 1 to facilitate heat dissipation. At the same time, due to the presence of the top baffle 306, there is no need to worry about dust entering. When not in use, the heat dissipation plate 506 covers the heat dissipation holes again under the action of the pulling spring 505 to prevent dust from entering.

[0027] In this embodiment, during operation: when the side baffle 301 moves forward, it presses against the rubber roller 405. Due to the material properties of the rubber roller 405, it experiences significant friction, exceeding the elastic coefficient of the second torsion spring 406. At this time, the side baffle 301 drives the rubber roller 405, pulling one end of the lever 404. When one end of the lever 404 is pulled forward, it rotates on the short rod 403 on the connecting block 402. When the lever 404 rotates in front of the short rod 403, it presses the other end of the lever 404 backward. When the other end of the lever 404 presses backward, it causes the lever 404 to... The other end pushes the pressing block 408, pulling the return spring 407 to slide backward on the fixed block 401. When the pressing block 408 slides backward on the fixed platform 304, it presses the pressing strip 2, reducing light leakage. Conversely, when the side baffle 301 moves backward, it stops pressing the rubber roller 405. When the side baffle 301 stops pressing the rubber roller 405, the second torsion spring 406 drives the lever 404 to reset. When the lever 404 resets, it stops pressing the pressing block 408. When the lever 404 stops pressing the pressing block 408, the pressing block 408 slides forward to reset under the action of the return spring 407.

[0028] When the pressing block 408 slides backward, it causes the pressing L-rod 501 to slide backward. As the pressing L-rod 501 slides backward, it causes the pressing rod 502 to slide backward. When the pressing rod 502 slides backward, it collides with the rotating rod 503. This collision causes the rotating rod 503 to rotate. As the rotating rod 503 rotates, its lower end presses against the heat sink 506. When the heat sink 506 is pressed, it slides outward, exposing the heat dissipation holes on the display screen 1 for better heat dissipation. Conversely, when the pressing block 408 slides forward... The pressing block 408 causes the pressing L-rod 501 to slide forward. When the pressing L-rod 501 slides forward, it causes the pressing rod 502 to slide forward. When the pressing rod 502 slides forward, it moves away from the rotating rod 503. When the pressing rod 502 moves away from the rotating rod 503, the rotating rod 503 is reset under the action of the third torsion spring 504. When the rotating rod 503 is reset, the lower end of the rotating rod 503 no longer presses the heat sink 506. When the heat sink 506 is no longer pressed, it is reset under the action of the pull spring 505, preventing dust from entering the display screen 1 through the heat dissipation holes when not in use.

[0029] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A liquid crystal display structure for improving light leakage, comprising a display screen (1), characterized in that: The front side of the display screen (1) is fixedly connected to the rear side of the edge strip (2). The side of the display screen (1) is provided with a blocking device (3) to block ambient light. The front side of the display screen (1) is provided with a squeezing device (4) to squeeze the edge strip (2) to reduce light leakage. The front side of the display screen (1) is provided with a heat dissipation device (5) to open heat dissipation holes. The shielding device (3) includes a side baffle (301), a hand crank (302), a rotating rod (303), a fixed platform (304), an L-block (305), a top baffle (306), a first torsion spring (307), and a pressing block (308); the outer side of the display screen (1) and the inner side of the side baffle (301) are slidably connected, and the outer side of the display screen (1) and the inner side of the fixed platform (304) are fixedly connected.

2. The liquid crystal display structure for improving light leakage according to claim 1, characterized in that: The inner wall of the fixed platform (304) is rotatably connected to the outer wall of the hand crank (302), the output end of the hand crank (302) is fixedly connected to the front end of the rotating rod (303), the lower end of the fixed platform (304) is slidably connected to the upper end of the L block (305), and the upper end of the L block (305) is fixedly connected to the lower end of the side baffle (301). The inner wall of the L block (305) is threadedly connected to the outer wall of the rotating rod (303).

3. A liquid crystal display structure for improving light leakage according to claim 2, characterized in that: The outer wall of the display screen (1) is rotatably connected to the inner wall of the top baffle (306). The outer side of the top baffle (306) is fixedly connected to one end of the first torsion spring (307), and the other end of the first torsion spring (307) is fixedly connected to the inner end of the display screen (1).

4. A liquid crystal display structure for improving light leakage according to claim 3, characterized in that: The rear side of the side baffle (301) is fixedly connected to the front side of the extrusion block (308).

5. A liquid crystal display structure for improving light leakage according to claim 1, characterized in that: The extrusion device (4) includes a fixed block (401), a connecting block (402), a short rod (403), a lever (404), a rubber roller (405), a second torsion spring (406), a return spring (407), and a pressing block (408). The front side of the display screen (1) is fixedly connected to the rear side of the fixed block (401), the front side of the display screen (1) is fixedly connected to the rear side of the connecting block (402), the lower end of the connecting block (402) is fixedly connected to the upper end of the short rod (403), the outer wall of the short rod (403) is rotatably connected to the inner wall of the lever (404), and the upper side of the lever (404) is fixedly connected to the lower end of the rubber roller (405).

6. A liquid crystal display structure for improving light leakage according to claim 5, characterized in that: The lower end of the short rod (403) is fixedly connected to one end of the second torsion spring (406), and the other end of the second torsion spring (406) is fixedly connected to the lower end of the lever (404). The rear side of the fixed block (401) is fixedly connected to one end of the return spring (407), and the other end of the return spring (407) is fixedly connected to the front side of the pressing block (408). The upper end of the pressing block (408) is slidably connected to the lower side of the fixed block (401).

7. A liquid crystal display structure for improving light leakage according to claim 1, characterized in that: The heat dissipation device (5) includes a pressing L-rod (501), a pressing rod (502), a rotating rod (503), a third torsion spring (504), a pulling spring (505), and a heat dissipation plate (506). The front side of the pressing block (408) is fixedly connected to the rear side of the pressing L-rod (501), and the upper end of the pressing L-rod (501) is fixedly connected to the lower end of the pressing rod (502).

8. A liquid crystal display structure for improving light leakage according to claim 7, characterized in that: The outer wall of the fixed platform (304) is rotatably connected to the inner wall of the rotating rod (503). The upper end of the rotating rod (503) is fixedly connected to one end of the third torsion spring (504), and the other end of the third torsion spring (504) is fixedly connected to the upper end of the fixed platform (304). The inner side of the fixed platform (304) is fixedly connected to one end of the pull spring (505), and the other end of the pull spring (505) is fixedly connected to the outer side of the heat sink (506). The rear side of the heat sink (506) is slidably connected to the front side of the display screen (1).

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