Liquid crystal display screen with adjustable brightness

Abstract

The utility model discloses a liquid crystal display screen capable of adjusting brightness, particularly relates to the technical field of liquid crystal display screens, and comprises a mounting plate, a liquid crystal display screen is arranged in the mounting plate, limiting blocks are arranged on two sides of the mounting plate, rotating shafts are arranged in the limiting blocks, and a synchronous adjusting mechanism is arranged at the top of the mounting plate. Through the arrangement of the fixed gear, when the driving motor indirectly drives the second adaptive gear to rotate, the fixed gear enables the first clamping gears on the two sides to synchronously rotate through the state that the fixed gear is meshed with the first clamping gears, then the second connecting rod and the second clamping gears are driven to synchronously rotate, and therefore synchronous rotation of the connecting gears is achieved; and then the connecting gear synchronously drives the rotating shaft and the light gathering plate on the outer side of the rotating shaft to rotate synchronously, and the practicability and convenience of the device are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid crystal display screens, and more specifically, to a liquid crystal display screen with adjustable brightness. Background Art

[0002] Liquid crystal display is a flat, ultra-thin display device that consists of a certain number of color or black and white pixels and is placed in front of a light source or a reflective surface. Liquid crystal display has very low power consumption. Its main principle is to use electric current to stimulate liquid crystal molecules to produce points, lines, and surfaces that cooperate with the back light tube to form a picture.

[0003] The utility model patent with patent publication number CN202321848460.0 discloses a liquid crystal display screen with adjustable brightness, including: a body, including a shell, the inner side of the shell is fixedly connected to the liquid crystal display screen body, the lower surface of the shell is fixedly connected to the adjustment plate by a screw, and the outer surface of the adjustment plate is slidably connected to the fixed plate. The utility model starts the first motor to rotate the bidirectional screw on the inner side of the upper end of the connecting bracket, thereby causing the two sets of sliders to move in a direction close to or away from each other, thereby driving the two sets of focusing plates to move in a direction close to or away from each other, thereby focusing or scattering the liquid crystal display screen body, and then through the cooperation of the lamp tube, the brightness of the liquid crystal display screen body can be adjusted, and the brightness of the shell can be adjusted according to the light in the room, so that the viewing effect is better.

[0004] However, in actual use, the structure cannot be stored when not in use because the adjustable angle of the focusing plate is small, which results in occupying space and blocking people's sight, making it impractical. Utility Model Content

[0005] In order to overcome the above defects of the prior art, the utility model provides a liquid crystal display screen with adjustable brightness to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a liquid crystal display screen with adjustable brightness, comprising a mounting plate, a liquid crystal display screen is arranged inside the mounting plate, limit blocks are arranged on both sides of the mounting plate, a rotating shaft is arranged inside the limit blocks, a synchronous adjustment mechanism is arranged on the top of the mounting plate, the rotating shaft is rotatably connected to the limit blocks, and the number of the limit blocks is set to four.

[0007] Preferably, the synchronous adjustment mechanism includes a placement plate, which is arranged on one side of the mounting plate, a driving motor is arranged inside the placement plate, and a rotating gear is connected to the output end of the driving motor, an adapting gear 1 is arranged on the outer side of the rotating gear, a connecting rod 1 is arranged on one side of the adapting gear 1, an adapting gear 2 is arranged on one side of the connecting rod 1, a fixed gear is arranged on the outer side of the adapting gear 2, a fixing column is arranged at the bottom of the fixed gear, and the bottom of the fixing column is fixedly connected to the top surface of the mounting plate, a clamping gear 1 is arranged on both sides of the fixed gear, a connecting rod 2 is arranged on one side of the clamping gear 1, a clamping gear 2 is arranged at one end of the connecting rod 2, a connecting gear is arranged at the bottom of the clamping gear 2, and the bottom surface of the connecting gear is fixedly connected to the top surface of the rotating shaft.

[0008] Through the above scheme, it can be seen that, by setting a synchronous adjustment mechanism, compared with the prior art, the rotating connection mode of the rotating shaft and the limit block is utilized to realize that the focusing plate follows the rotating shaft to rotate, thereby greatly improving the rotation range of the focusing plate, so that the focusing plate can be hidden behind the liquid crystal display screen, avoiding the situation that the focusing plate blocks the field of vision of people when not in use, thereby improving the practicality of the device. At the same time, the motor is used to drive the rotating gear to rotate, the rotating gear drives the adapting gear 1, the adapting gear 1 drives the connecting rod 1, the connecting rod 1 drives the adapting gear 2, the adapting gear 2 drives the fixed gear, the fixed gear drives the two engaging gears 1 to rotate at the same time, and the engaging gear 1 synchronously drives the connecting rod 2 to rotate, the connecting rod 2 drives the engaging gear 2 to rotate, and finally the engaging gear 2 drives the connecting gear to rotate, thereby realizing that the starting motor drives the two focusing plates to rotate synchronously, thereby improving the convenience of the device.

[0009] Preferably, a focusing plate is provided on the outer side of the rotating shaft, a glass panel 1 is provided inside the focusing plate, and a side surface of the glass panel 1 is fixedly connected to the inner wall surface of the focusing plate.

[0010] Through the above scheme, it can be seen that, by setting a focusing plate, compared with the prior art, by setting glass panel one and glass panel two inside and on one side of the focusing plate, the light of the lighting tube is emitted to the surface of the liquid crystal display screen through the connecting port by utilizing the principle of refraction, thereby avoiding direct contact between the light beam of the lighting tube and the viewer's eyes, causing damage to the viewer's glasses, thereby improving the practicability of the device and protecting the viewer's eye safety.

[0011] Preferably, a lighting tube is provided inside the focusing plate, the number of the lighting tubes is set to be multiple, and the lighting tube is detachably connected to the inside of the focusing plate.

[0012] Through the above scheme, it can be seen that the lighting tube is hidden inside the focusing plate, so as to avoid direct illumination of the lighting tube to the audience, thereby making the lighting light seen by the audience softer, thereby improving the overall practicality of the device.

[0013] Preferably, a second glass panel is provided on one side surface of the focusing plate, and the cross-sectional area of ​​the second glass panel is smaller than the cross-sectional area of ​​the first glass panel.

[0014] Through the above scheme, it can be seen that glass panel one and glass panel two are respectively provided inside and outside the focusing plate, so that glass panel one and glass panel two are used to realize the refraction of the lighting light, and then the lighting light is refracted to the surface of the liquid crystal display screen, so as not to cause light pollution and improve the practicality of the device.

[0015] Preferably, a communication port is provided on one side surface of the focusing plate, and the cross-sectional shape of the communication port is set to be a rectangle. One end surface of the focusing plate is fixedly connected to a rotating shaft, and the rotating shaft is rotatably connected to a limit block, and the number of the limit blocks is set to four.

[0016] Through the above scheme, it can be seen that the lighting light is refracted onto the surface of the liquid crystal display screen through the connecting port, thereby ensuring the viewing experience of the viewers and improving the comfort of the viewers without weakening the lighting effect.

[0017] Technical effects and advantages of the utility model:

[0018] 1. By setting a synchronous adjustment mechanism, compared with the prior art, the condenser plate is rotated along with the condenser plate by using the rotatable connection mode between the rotating shaft and the limit block, thereby greatly improving the rotation range of the condenser plate, so that the condenser plate can be hidden behind the liquid crystal display screen, avoiding the condenser plate from blocking the field of vision of people when not in use, thereby improving the practicality of the device. At the same time, the motor is used to drive the rotating gear to rotate, the rotating gear drives the adapting gear 1, the adapting gear 1 drives the connecting rod 1, the connecting rod 1 drives the adapting gear 2, the adapting gear 2 drives the fixed gear, the fixed gear drives the two clamping gears 1 to rotate at the same time, and the clamping gear 1 synchronously drives the connecting rod 2 to rotate, the connecting rod 2 drives the clamping gear 2 to rotate, and finally the clamping gear 2 drives the connecting gear to rotate, thereby realizing that the starting motor drives the two condenser plates to rotate synchronously, thereby improving the convenience of the device;

[0019] 2. Compared with the prior art, by setting a focusing plate, glass panel 1 and glass panel 2 are set inside and on one side of the focusing plate, so that the light of the lighting tube is emitted to the surface of the liquid crystal display screen through the connecting port by utilizing the principle of refraction, thereby avoiding direct contact between the light beam of the lighting tube and the eyes of the viewer, causing damage to the glasses of the viewer, thereby improving the practicability of the device and protecting the eye safety of the viewer. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0021] Figure 2 It is a schematic diagram of the structure of the synchronous adjustment mechanism of the utility model.

[0022] Figure 3 This is a schematic diagram of the structure of the light collecting plate of the utility model.

[0023] Figure 4 It is a schematic diagram of the internal structure of the focusing plate of the utility model.

[0024] The accompanying drawings are marked as follows: 1. mounting plate; 2. liquid crystal display screen; 3. limit block; 4. rotating shaft; 5. placement plate; 6. driving motor; 7. rotating gear; 8. adapting gear one; 9. connecting rod one; 10. adapting gear two; 11. fixing gear; 12. fixing column; 13. snap-on gear one; 14. connecting rod two; 15. snap-on gear two; 16. connecting gear; 17. focusing plate; 18. glass panel one; 19. lighting tube; 20. glass panel two; 21. connecting port. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] As attached Figure 1-4 A liquid crystal display screen with adjustable brightness is shown, comprising a mounting plate 1, a liquid crystal display screen 2 is arranged inside the mounting plate 1, limit blocks 3 are arranged on both sides of the mounting plate 1, a rotating shaft 4 is arranged inside the limit blocks 3, a synchronous adjustment mechanism is arranged on the top of the mounting plate 1, the rotating shaft 4 is rotatably connected to the limit blocks 3, and the number of the limit blocks 3 is set to four.

[0027] As attached Figure 1-2As shown, the synchronous adjustment mechanism includes a placement plate 5, which is arranged on one side of the mounting plate 1, and a driving motor 6 is arranged inside the placement plate 5. The output end of the driving motor 6 is connected to a rotating gear 7, and an adapting gear 8 is arranged on the outside of the rotating gear 7, and a connecting rod 9 is arranged on one side of the adapting gear 8, and an adapting gear 2 10 is arranged on one side of the connecting rod 9, and a fixed gear 11 is arranged on the outside of the adapting gear 2 10, and a fixing column 12 is arranged at the bottom of the fixed gear 11, and the bottom of the fixing column 12 is fixedly connected to the top surface of the mounting plate 1, and a clamping gear 13 is arranged on both sides of the fixed gear 11, and a connecting gear 13 is arranged on one side. A connecting rod 14 is provided at one end of the connecting rod 14 with a snap-on gear 15, and a connecting gear 16 is provided at the bottom of the snap-on gear 15. The bottom surface of the connecting gear 16 is fixedly connected to the top surface of the rotating shaft 4, so that when the driving motor 6 is used to indirectly drive the adapting gear 10 to rotate, the fixed gear 11 is engaged with the snap-on gear 13, so that the snap-on gears 13 on both sides can rotate synchronously, thereby driving the connecting rod 14 and the snap-on gear 15 to rotate synchronously, thereby realizing the synchronous rotation of the connecting gear 16, and then the connecting gear 16 synchronously drives the rotating shaft 4 and the focusing plate 17 outside the rotating shaft 4 to rotate synchronously, thereby improving the practicability and convenience of the device.

[0028] As attached Figure 3-4 As shown, a focusing plate 17 is provided on the outer side of the rotating shaft 4, and a glass panel 18 is provided inside the focusing plate 17. One side surface of the glass panel 18 is fixedly connected to the inner wall surface of the focusing plate 17, so that the illumination light can be refracted by the glass panel 18 to avoid direct contact between the illumination light and the glasses of the moviegoers, thereby ensuring the personal safety of the moviegoers and improving the practicability of the device.

[0029] Working principle of the utility model: when the device is in use, first start the driving motor 6, and use the driving motor 6 to drive the rotating gear 7 connected to its output end to rotate synchronously, and then the rotating gear 7 drives the adapting gear 1 8 to rotate, and at the same time the adapting gear 1 8 drives the connecting rod 1 9 to rotate, at this time the adapting gear 2 10 at one end of the connecting rod 1 9 rotates under the drive of the connecting rod 1 9, and then drives the fixed gear 11 at its bottom to rotate, and the fixed gear 11 drives the clamping gear 1 13 on both sides thereof to rotate synchronously, and at the same time the clamping gear 1 13 drives the connecting rod 2 14 on one side thereof to rotate synchronously, and then drives the clamping gear 2 15 to rotate, and finally the clamping gear 2 15 drives the connecting gear 16 at its bottom to rotate, at this time the rotating shaft 4 rotates following the connecting gear 16, driving the focusing plate 17 to rotate, thereby realizing the synchronous adjustment function of the focusing plate 17, reducing the space occupied by the focusing plate 17, and hiding the focusing plate 17, which can avoid the situation where the focusing plate 17 obstructs the field of vision of the personnel, thereby improving the overall practicality.

[0030] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A liquid crystal display screen with adjustable brightness, comprising a mounting plate (1), characterized in that: A liquid crystal display screen (2) is arranged inside the mounting plate (1), limit blocks (3) are arranged on both sides of the mounting plate (1), a rotating shaft (4) is arranged inside the limit blocks (3), a synchronous adjustment mechanism is arranged on the top of the mounting plate (1), the rotating shaft (4) is rotatably connected to the limit blocks (3), and the number of the limit blocks (3) is set to four.

2. The liquid crystal display screen with adjustable brightness according to claim 1, characterized in that: The synchronous adjustment mechanism comprises a placement plate (5), the placement plate (5) being arranged on one side of the mounting plate (1), a driving motor (6) being arranged inside the placement plate (5), an output end of the driving motor (6) being connected to a rotating gear (7), an adapting gear 1 (8) being arranged on the outer side of the rotating gear (7), a connecting rod 1 (9) being arranged on one side of the adapting gear 1 (8), an adapting gear 2 (10) being arranged on one side of the connecting rod 1 (9), a fixing gear (11) being arranged on the outer side of the adapting gear 2 (10), and the fixing gear (12) being arranged on the outer side of the fixing gear (13). A fixing column (12) is provided at the bottom of the fixed gear (11), and the bottom of the fixing column (12) is fixedly connected to the top surface of the mounting plate (1). A clamping gear (13) is provided on both sides of the fixed gear (11), and a connecting rod (14) is provided on one side of the clamping gear (13). A clamping gear (15) is provided at one end of the connecting rod (14). A connecting gear (16) is provided at the bottom of the clamping gear (15), and the bottom surface of the connecting gear (16) is fixedly connected to the top surface of the rotating shaft (4).

3. The liquid crystal display screen with adjustable brightness according to claim 1, characterized in that: A focusing plate (17) is provided on the outside of the rotating shaft (4), a glass panel (18) is provided inside the focusing plate (17), and a side surface of the glass panel (18) is fixedly connected to the inner wall surface of the focusing plate (17).

4. The liquid crystal display screen with adjustable brightness according to claim 3, characterized in that: An illumination lamp tube (19) is arranged inside the light collecting plate (17), the number of the illumination lamp tubes (19) is set to be multiple, and the illumination lamp tube (19) is detachably connected to the inside of the light collecting plate (17).

5. The liquid crystal display screen with adjustable brightness according to claim 3, characterized in that: A second glass panel (20) is provided on one side surface of the focusing plate (17), and the cross-sectional area of ​​the second glass panel (20) is smaller than the cross-sectional area of ​​the first glass panel (18).

6. The liquid crystal display screen with adjustable brightness according to claim 3, characterized in that: A communication opening (21) is provided on one side surface of the light collecting plate (17), and the cross-sectional shape of the communication opening (21) is set to be rectangular. One end surface of the light collecting plate (17) is fixedly connected to the rotating shaft (4). The light collecting plate (17) is provided with a communication opening (21).

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