Liquid crystal display screen with switchable wide and narrow visual angles

Abstract

The utility model belongs to the technical field of liquid crystal display screens, and particularly relates to a wide-narrow visual angle switchable liquid crystal display screen which comprises a fixing column, the surface of the fixing column is fixedly connected with three supporting feet arranged in an annular array mode, the outer side of the fixing column is fixedly sleeved with an installation base, and a motor is fixedly installed at the right end of the installation base. An output shaft of the motor is rotationally connected with the mounting base, a mounting frame fixedly sleeves the outer side of the output shaft of the motor, a rotating part of the mounting frame is located in the mounting base, and a display screen is arranged on a mounting part of the mounting frame. The motor drives the output shaft to drive the mounting frame to rotate, the angle of the liquid crystal display screen can be automatically deflected for use, the rotating disc can be limited under the structures of the positioning hole, the positioning rod, the elastic piece and the like, then the position of the liquid crystal display screen is positioned for use, and the use adaptability of the liquid crystal display screen is improved.

Description

Technical Field

[0001] This utility model relates to the field of liquid crystal display technology, specifically to a liquid crystal display screen with switchable wide and narrow viewing angles. Background Technology

[0002] As is well known, a wide-viewing-angle-switching LCD monitor is a display device with viewing angle control function. Users can adjust the viewing angle of the screen according to their needs. Wide-viewing-angle-switching LCD monitors have advantages in privacy protection and multi-person collaboration scenarios.

[0003] A utility model patent with patent authorization announcement number CN221922666U discloses a wide and narrow viewing angle switchable liquid crystal display screen, including a liquid crystal display. An adjustment component is provided on the lower surface of the liquid crystal display. The adjustment component includes a T-shaped rod, which is fixedly connected to the lower surface of the liquid crystal display. A rotating cylinder is rotatably connected to the outer wall of the T-shaped rod. An L-shaped plate is fixedly connected to the right end of the outer wall of the T-shaped rod. A connecting plate is fixedly connected to the left surface of the rear end of the L-shaped plate. A connecting rod is fixedly connected to the rear surface of the connecting plate. A rotating rod is fixedly connected to the lower surface of the L-shaped plate.

[0004] However, existing wide and narrow viewing angle switchable LCD screens also have certain shortcomings. Most existing wide and narrow viewing angle switchable LCD screens require manual operation to adjust the position and angle of the screen, which is undoubtedly inconvenient to operate and use. Utility Model Content

[0005] The purpose of this utility model is to provide a wide and narrow viewing angle switchable LCD screen, which solves the problem that existing wide and narrow viewing angle switchable LCD screens mostly use manual operation to adjust the position and angle of the screen, making them inconvenient to use.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a wide and narrow viewing angle switchable liquid crystal display screen, including a fixed column, three legs arranged in a circular array fixedly connected to the surface of the fixed column, a mounting base fixedly sleeved on the outer side of the fixed column, a motor fixedly mounted on the right end of the mounting base, the output shaft of the motor being rotatably connected to the mounting base, a mounting bracket fixedly sleeved on the outer side of the output shaft of the motor, the rotating part of the mounting bracket being located inside the mounting base, the mounting part of the mounting bracket being provided with a display screen, and a positioning mechanism being provided on both the output shaft of the motor and the mounting base.

[0007] Preferably, each of the support legs has multiple friction grooves at its lower end, and the multiple friction grooves are evenly distributed on the support leg. By setting the friction grooves, the friction effect of the support leg can be improved, thereby improving the stability of the display screen.

[0008] Preferably, a rotating rod is installed inside the fixed column via a bearing, and a bevel gear is fixedly sleeved on the outer side of the rotating rod. A screw is installed inside the fixed column via a bearing, and a bevel gear is threadedly connected to the outer side of the screw. A screw cylinder is threadedly connected to the outer side of the screw, and a suction cup is fixedly connected to the lower end of the screw cylinder. The suction cup is slidably connected to the fixed column. Through the arrangement of the rotating rod, bevel gear, and other structures, the screw cylinder can be driven to move, thereby moving the suction cup and making it contact the display screen mounting platform to ensure the stable placement of the display screen.

[0009] Preferably, an end plate is fixedly installed on the back of the rotating rod. The end plate is made of rubber. The end plate facilitates the rotation of the rotating rod and improves the feel of the end plate.

[0010] Preferably, a guide plate is fixedly connected to the inner side wall of the fixed column, and a guide block is slidably sleeved on the outer side of the guide plate. The guide block is fixedly connected to the screw cylinder. Through the cooperation of the guide plate and the guide block, the screw cylinder can be guided.

[0011] Preferably, the positioning mechanism includes a rotating disk, the output shaft of the motor is fixedly connected to the rotating disk, a positioning hole is provided at the right end of the rotating disk, a fixing frame is fixedly connected to the left end of the mounting base, a positioning rod is slidably connected to the inner wall of the fixing frame, the positioning rod is slidably connected to the positioning hole, an elastic element is bonded to the right end of the positioning rod, and the other end of the elastic element is bonded to the mounting base. Driven by the motor, the mounting frame can be rotated to drive the display screen to deflect, and the angle of the display screen can be adaptively adjusted. With the positioning hole, positioning rod and other structures, the position of the display screen can be positioned for use.

[0012] Preferably, multiple positioning holes are provided, and the multiple positioning holes are arranged in a circular array on the rotating disk. The positioning holes facilitate positioning with the positioning rod.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model, through the setting of the support feet, can support and place the LCD screen. With the rotating rod, bevel gear one, bevel gear two and other structures, the screw can be driven to move, so as to drive the suction cup to expose the fixing post, and adsorb and fix the LCD screen to the mounting surface, so as to ensure the stability of the LCD screen.

[0015] 2. This utility model uses a motor-driven output shaft to rotate the mounting bracket, which can automatically deflect the angle of the LCD screen. With the positioning hole, positioning rod, elastic element and other structures, the rotating disk can be limited, thereby positioning the LCD screen and improving the adaptability of the LCD screen. Attached Figure Description

[0016] Figure 1 This is a perspective view of the overall structure of this utility model;

[0017] Figure 2 For the present utility model Figure 1 Top view;

[0018] Figure 3 For the present utility model Figure 1 Side view;

[0019] Figure 4 For the present utility model Figure 3 Enlarged view of the suction cup;

[0020] Figure 5 For the present utility model Figure 2 Enlarged view of the positioning mechanism.

[0021] In the diagram: 1. Fixed column; 2. Support leg; 3. Mounting base; 4. Motor; 5. Mounting bracket; 6. Display screen; 7. Rotating rod; 8. Bevel gear one; 9. Screw; 10. Bevel gear two; 11. Screw barrel; 12. Suction cup; 13. Guide plate; 14. Guide block; 15. Positioning mechanism; 151. Rotating disk; 152. Positioning hole; 153. Fixed bracket; 154. Positioning rod; 155. Elastic element. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 A wide and narrow viewing angle switchable LCD screen includes a fixed post 1. Three support legs 2 arranged in a circular array are fixedly connected to the surface of the fixed post 1. Each support leg 2 has multiple friction grooves at its lower end. The friction grooves are evenly distributed on the support leg 2. The friction grooves can improve the friction effect of the support leg 2, thereby improving the stability of the display screen 6. A mounting base 3 is fixedly sleeved on the outside of the fixed post 1. A motor 4 is fixedly installed on the right end of the mounting base 3. The output shaft of the motor 4 is rotatably connected to the mounting base 3. A mounting bracket 5 is fixedly sleeved on the outside of the output shaft of the motor 4. The rotating part of the mounting bracket 5 is located inside the mounting base 3. The display screen 6 is mounted on the mounting part of the mounting bracket 5.

[0024] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 Inside the fixed column 1, a rotating rod 7 is installed via a bearing. A bevel gear 8 is fixedly sleeved on the outside of the rotating rod 7. Inside the fixed column 1, a screw 9 is installed via a bearing. A bevel gear 10 is threadedly connected to the outside of the screw 9. A screw cylinder 11 is threadedly connected to the outside of the screw 9. A suction cup 12 is fixedly connected to the lower end of the screw cylinder 11. The suction cup 12 is slidably connected to the fixed column 1. Through the arrangement of the rotating rod 7, bevel gear 10, and other structures, the screw cylinder 11 can be driven to move, thereby driving the suction cup 12 to move, and thus making the suction cup 12 contact the placement platform of the display screen 6 to ensure the stable placement of the display screen 6.

[0025] Please see Figure 1 , Figure 2 , Figure 3 , Figure 5 An end plate is fixedly installed on the back of the rotating rod 7. The end plate is made of rubber. The end plate facilitates the rotation of the rotating rod 7. The rubber material improves the feel of the end plate. A guide plate 13 is fixedly connected to the inner wall of the fixed column 1. A guide block 14 is slidably sleeved on the outer side of the guide plate 13. The guide block 14 is fixedly connected to the screw cylinder 11. The screw cylinder 11 can be guided by the cooperation of the guide plate 13 and the guide block 14.

[0026] Please see Figure 1 , Figure 2 , Figure 3 , Figure 5 A positioning mechanism 15 is provided on both the output shaft of the motor 4 and the mounting base 3. The positioning mechanism 15 includes a rotating disk 151. The output shaft of the motor 4 is fixedly connected to the rotating disk 151. A positioning hole 152 is provided at the right end of the rotating disk 151. Multiple positioning holes 152 are arranged in a circular array on the rotating disk 151. The positioning holes 152 facilitate positioning with the positioning rod 154. A fixing frame 153 is fixedly connected to the left end of the mounting base 3. A positioning rod 154 is slidably connected to the inner wall of the fixing frame 153. The positioning rod 154 is slidably connected to the positioning hole 152. An elastic element 155 is bonded to the right end of the positioning rod 154. The other end of the elastic element 155 is bonded to the mounting base 3. Driven by the motor 4, the mounting frame 5 can be rotated to deflect the display screen 6 and adjust the angle of the display screen 6 accordingly. With the positioning hole 152, positioning rod 154 and other structures, the position of the display screen 6 can be positioned.

[0027] The specific implementation process of this utility model is as follows: In use, by pushing the rotating rod 7 to rotate, the first bevel gear 8 is driven to rotate. Under the meshing relationship, the second bevel gear 10 is driven to rotate, which in turn drives the screw 9 to rotate. Under the threaded connection relationship, the screw cylinder 11 is driven to move, which in turn drives the guide block 14 to move along the surface of the guide plate 13, so that the screw cylinder 11 is in a stable moving state, which in turn drives the suction cup 12 to slide along the inner wall of the fixed column 1, so that the suction cup 12 contacts the placement table surface, thereby ensuring the stable placement of the display screen 6.

[0028] The output shaft of motor 4 is driven to rotate, which in turn drives the mounting bracket 5 to rotate, thereby causing the display screen 6 to deflect and adjust the angle of the display screen 6 accordingly. When the output shaft of motor 4 rotates, it can drive the rotating disk 151 to rotate. Under the pressure of the inner wall of the positioning hole 152, the positioning rod 154 can be pushed to move stably along the inner wall of the fixing bracket 153, causing the elastic element 155 to deform. Finally, the positioning rod 154 is disengaged from the positioning hole 152. Under the action of force, the positioning rod 154 moves along the surface of the rotating disk 151. When the positioning rod 154 slides into the next positioning hole 152, the elastic element 155 restores its deformation, pushing the positioning rod 154 to insert into the positioning hole 152, limiting the rotating disk 151, and thus positioning the display screen 6 for use.

[0029] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A wide and narrow viewing angle switchable liquid crystal display screen, comprising a fixing column (1), characterized in that: The surface of the fixed column (1) is fixedly connected with three legs (2) arranged in a circular array. The outer side of the fixed column (1) is fixedly sleeved with a mounting base (3). The right end of the mounting base (3) is fixedly mounted with a motor (4). The output shaft of the motor (4) is rotatably connected to the mounting base (3). The outer side of the output shaft of the motor (4) is fixedly sleeved with a mounting bracket (5). The rotating part of the mounting bracket (5) is located inside the mounting base (3). The mounting part of the mounting bracket (5) is provided with a display screen (6). The output shaft of the motor (4) and the mounting base (3) are both provided with a positioning mechanism (15).

2. The wide and narrow viewing angle switchable liquid crystal display screen according to claim 1, characterized in that: Each of the legs (2) has multiple friction grooves at its lower end, and the multiple friction grooves are evenly distributed on the legs (2).

3. The wide and narrow viewing angle switchable liquid crystal display screen according to claim 1, characterized in that: A rotating rod (7) is installed inside the fixed column (1) via a bearing. A bevel gear (8) is fixedly sleeved on the outside of the rotating rod (7). A screw (9) is installed inside the fixed column (1) via a bearing. A bevel gear (10) is threadedly connected to the outside of the screw (9). A screw cylinder (11) is threadedly connected to the outside of the screw (9). A suction cup (12) is fixedly connected to the lower end of the screw cylinder (11). The suction cup (12) is slidably connected to the fixed column (1).

4. A wide and narrow viewing angle switchable liquid crystal display screen according to claim 3, characterized in that: An end plate is fixedly installed on the back of the rotating rod (7), and the end plate is made of rubber.

5. A wide and narrow viewing angle switchable liquid crystal display screen according to claim 3, characterized in that: The inner wall of the fixed column (1) is fixedly connected to a guide plate (13), and a guide block (14) is slidably sleeved on the outer side of the guide plate (13). The guide block (14) is fixedly connected to the screw cylinder (11).

6. A wide and narrow viewing angle switchable liquid crystal display screen according to claim 1, characterized in that: The positioning mechanism (15) includes a rotating disk (151), the output shaft of the motor (4) is fixedly connected to the rotating disk (151), the right end of the rotating disk (151) is provided with a positioning hole (152), the left end of the mounting base (3) is fixedly connected to a fixing frame (153), the inner wall of the fixing frame (153) is slidably connected to a positioning rod (154), the positioning rod (154) is slidably connected to the positioning hole (152), the right end of the positioning rod (154) is bonded with an elastic element (155), and the other end of the elastic element (155) is bonded to the mounting base (3).

7. A wide and narrow viewing angle switchable liquid crystal display screen according to claim 6, characterized in that: The positioning holes (152) are provided in multiple ways, and the multiple positioning holes (152) are arranged in a ring array on the rotating disk (151).

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