CN111326083A

CN111326083A - Liquid crystal display

Info

Publication number: CN111326083A
Application number: CN202010154203.1A
Authority: CN
Inventors: 杨丹; 李鑫
Original assignee: 杨丹
Current assignee: Guangxi GaoMin Technology Development Co.,Ltd.
Priority date: 2020-03-07
Filing date: 2020-03-07
Publication date: 2020-06-23
Anticipated expiration: 2040-03-07
Also published as: CN111326083B

Abstract

The invention relates to the technical field of displays, in particular to a liquid crystal display; comprises a base, a bracket, a shell and a display screen; the bracket is arranged on the base; the shell is arranged on the bracket through a screw, and a sliding groove is formed in the inner side wall of the shell; a buffer unit is arranged in the sliding groove; the display screen is arranged in the sliding groove; the buffer unit comprises a pressing plate, a U-shaped rod and an air bag; reduce the damage that the display screen produced after receiving the collision through the cooperation of shell, display screen and buffer unit, transmit vibration to display screen department through the support column when avoiding the shell to receive the striking to take place to vibrate to the gasbag can effectively absorb the vibration that the shell produced after the inflation warp, further avoid the inhomogeneous condition of liquid crystal distribution of LCD production after the emergence collision, prolong the holistic life of LCD and be suitable for the place.

Description

Liquid crystal display

Technical Field

The invention relates to the technical field of displays, in particular to a liquid crystal display.

Background

The liquid crystal is used as a special functional material with anisotropy, and the nematic phase molecules with anisotropy are controlled by using an external electric field, so that the ordered state of the original molecules is changed, the optical performance of the original liquid crystal is naturally changed, and the modulation of the liquid crystal on external light is realized. Liquid crystals have been widely used in display devices. Liquid crystal display screens are widely used in the field of information display. The liquid crystal has the double refraction of crystals and the liquidity of liquid; liquid crystal displays, which are flat, ultra-thin display devices, consist of a certain number of color or black and white pixels placed in front of a light source or a reflective surface. Liquid crystal displays are very low power consuming and are therefore favored by engineers for use in battery-operated electronic devices. The main principle is that the current stimulates the liquid crystal molecules to generate points, lines and surfaces which are matched with a back lamp tube to form a picture; the specific introduction of the liquid crystal display can refer to journal, liquid crystal and display, academy of Chinese sciences, Guo Hai Cheng, ISSN:1007-2780, CN: 22-1259/O4; it follows that there is still a need for improvement in relation to liquid crystal displays on the existing market.

Because liquid crystal is liquid under the normal state, but its molecular arrangement is very regular just like solid crystal to make when liquid crystal display receives the collision back, especially can lead to liquid crystal to take place the local flow when the liquid crystal lateral wall receives great pressing force, thereby cause the distribution of liquid crystal inhomogeneous, influence liquid crystal display's whole display quality, and make liquid crystal display show the blurring, trailing phenomenon appears even in the dynamic image.

Disclosure of Invention

The invention provides a liquid crystal display, which aims to make up the defects of the prior art and solve the problems that after a liquid crystal display screen is collided, especially when the side wall of a liquid crystal screen is subjected to larger pressing force, the liquid crystal can cause local flow, so that the distribution of the liquid crystal is uneven, the whole display quality of the liquid crystal display is influenced, the liquid crystal display screen is blurred in display, and dynamic images even have trailing phenomena.

The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a liquid crystal display, which comprises a base, a bracket, a shell and a display screen; the bracket is arranged on the base; the shell is arranged on the bracket through a screw, and a sliding groove is formed in the inner side wall of the shell; a buffer unit is arranged in the sliding groove; the display screen is arranged in the sliding groove; the buffer unit comprises a pressing plate, a U-shaped rod and an air bag; the pressing plate is arranged on the inner side wall of the sliding groove through a spring, and a supporting column is arranged on the side wall, close to the display screen, of the pressing plate; the air bag is arranged between the pressing plate and the display screen; the U-shaped rod is arranged in the sliding groove, one end of the U-shaped rod is in contact with the side wall of the pressing plate through a friction block, and the other end of the U-shaped rod is in contact with the side wall of the air bag through the friction block; the damage of the display screen after collision is reduced through the matching of the shell, the display screen and the buffer unit; when the display screen is in operation, after the side wall of the display is collided, the shell is firstly stressed, at the moment, the shell transmits the pressure to the pressing plate through the spring, the spring is pressed to reduce the distance between the pressing plate and the side wall of the sliding groove, so that the pressing plate generates pressure on the U-shaped rod, the U-shaped rod rotates after being pressed, the U-shaped rod generates pressure on the air bag in the rotating process, the internal air pressure of the air bag is increased after being pressed, the air bag between the pressing plate and the display screen is expanded and deformed after being pressed, the gap between the pressing plate and the display screen is increased in the deformation process of the air bag, so that the display screen is not contacted with the supporting column any more, the vibration is transmitted to the display screen through the supporting column when the shell is collided and vibrated, and the air bag can effectively absorb the vibration generated by the shell after being expanded and deformed, thereby further reducing the damage, the condition that liquid crystal distribution is not uniform after the liquid crystal display collides is further avoided, and the service life and the application place of the whole liquid crystal display are prolonged.

Preferably, the side wall of the display screen is provided with a rubber rod; a wavy cavity is formed in the rubber rod and is communicated with the air bag; the vibration amplitude of the display screen is reduced through the matching of the rubber rod and the wave-shaped cavity; the during operation, the lateral wall when the display receives the collision back, the shell receives pressure at first, the shell passes through the spring and transmits pressure to pressing the clamp plate this moment, reduce the distance between clamp plate and the spout lateral wall after the spring is compressed, thereby produce pressure to the U-shaped pole through pressing the clamp plate, take place rotatoryly after the U-shaped pole is compressed, the U-shaped pole produces pressure to the gasbag at rotatory in-process, transmit some gas to the wave cavity after the gasbag is compressed, make the rubber stick pressurized deformation extension simultaneously, and paste the lateral wall department that the display screen is close to the spout tightly, thereby the vibration condition of display screen has effectively been absorbed through the rubber stick, and because the wave cavity of rubber stick, make the rubber stick take place the indirection inflation at the extension in-process, thereby further guaranteed the contact compactness of rubber stick with the display screen, strengthen the absorption vibration effect of rubber stick.

Preferably, the wave-shaped cavity is symmetrically provided with folded rods at positions close to the wave troughs, and the folding directions of the folded rods face the wave troughs close to the folded rods; the vibration potential energy of the rubber rod is absorbed through the matching of the rubber rod, the wave-shaped cavity and the folded rod; when the display screen is in work, after the side wall of the display is collided, the shell is firstly stressed, the shell transmits the pressure to the pressing plate through the spring at the moment, the spring reduces the distance between the pressing plate and the side wall of the sliding groove after being stressed, so that the pressing plate generates pressure on the U-shaped rod, the U-shaped rod rotates after being stressed, the U-shaped rod generates pressure on the air bag in the rotating process, and the air bag transmits a part of gas into the wavy cavity after being stressed, so that the rubber rod is simultaneously stressed, deformed and extended and is tightly attached to the side wall of the display screen, and the vibration condition of the display screen is effectively absorbed through the rubber rod; when the collision process is finished and the shell does not generate pressure to the display screen any more, the U-shaped rod rotates in a resetting way, the air bag is not stressed any more, the pressing plate is reset under the elastic force of the spring until the supporting column is contacted with the display screen, at the moment, the internal pressure of the rubber rod is restored, and the pressing plate is also reset under the elastic force of the pressing plate, so as to avoid collision between the pressing plate and the display screen when the rubber rod is shaken left and right in the restoration process, therefore, the folding rods are symmetrically arranged at the positions close to the wave troughs, the folding directions of the folding rods all face to the wave troughs close to the folding rods, thereby the reduction of the rubber rod is slowed down by the folded rod, the vibration generated after the rubber rod is reset too fast is avoided, and the recovery condition of the air bag is slowed down, the impact force generated by the support column on the side wall of the display screen during resetting is reduced, and the damage to the side wall of the liquid crystal display after the impact is further reduced.

Preferably, the side wall of the air bag is provided with a feeler, the feeler is communicated with the air bag, and the vibration transmitted by the pressing plate is reduced by the contact of the feeler and the pressing plate; when the display screen is in work, after the side wall of the display is collided, the shell is firstly stressed, at the moment, the shell transmits the pressure to the pressing plate through the spring, the spring is pressed to reduce the distance between the pressing plate and the side wall of the sliding groove, so that the pressing plate generates pressure on the U-shaped rod, the U-shaped rod rotates after being pressed, the U-shaped rod generates pressure on the air bag in the rotating process, the internal air pressure of the air bag is increased after being pressed, the air bag between the pressing plate and the display screen is expanded and deformed, the gap between the pressing plate and the display screen is increased in the deformation process of the air bag, so that the display screen is not contacted with the supporting column any more, the vibration is transmitted to the display screen through the supporting column when the shell is collided and vibrated, in the deformation increasing process of the air bag, the contact angle is in close contact with the side wall of the display screen and the pressing plate, and the vibration condition of, further playing a role of buffering.

Preferably, the side wall of the sliding chute is provided with an inward concave radian near the U-shaped rod, so that the torsional force applied to the U-shaped rod in the flowing process is increased; the during operation, after the lateral wall of display received the collision, the shell received pressure at first, the shell passes through the spring this moment with pressure transmission to pressing the clamp plate, reduce the distance between clamp plate and the spout lateral wall after the spring pressurized, thereby produce pressure to the U-shaped pole through pressing the clamp plate, the U-shaped pole takes place rotatoryly after the pressurized, for making the U-shaped pole can produce bigger pressure to the gasbag at rotatory in-process, be equipped with indent formula radian near U-shaped pole department with the spout lateral wall, thereby the moment of torsion that the U-shaped pole received at rotatory in-process has been increased, the rotation degree of U-shaped pole has been increased, thereby the pressurized degree of gasbag has been strengthened, make the gasbag can produce bigger inflation deformation after the pressurized, further guaranteed that the display screen no longer contacts with pressing the clamp plate, and increased the contact surface examination of gasbag and pressing the clamp plate, make the gasbag can absorb stronger vibration range.

Preferably, the U-shaped rod is hinged with a rotating wheel on the side wall in contact with the sliding groove, so that sliding friction force is converted into rolling friction force, and stress dispersion of the U-shaped rod is reduced; the during operation, after the lateral wall of display received the collision, the shell received pressure at first, the shell passes through the spring this moment with pressure transmission to pressing the clamp plate, reduce the distance between clamp plate and the spout lateral wall after the spring pressurized, thereby produce pressure to the U-shaped pole through pressing the clamp plate, the U-shaped pole takes place rotatoryly after the pressurized, owing to articulate the U-shaped pole has the runner at the lateral wall with the spout contact, thereby with the sliding friction power between U-shaped pole and the spout lateral wall, the rolling friction power between gyro wheel and the spout lateral wall has been changed into, thereby reduce the friction that the U-shaped pole received at rotatory in-process, shorten the runing time of U-shaped pole, further strengthen the holistic practicality of buffer unit, the holistic life of LCD has been prolonged, reduce the probability that LCD takes place to show the problem after the collision.

The invention has the following beneficial effects:

1. according to the liquid crystal display, the damage of the display screen after collision is reduced through the matching of the shell, the display screen and the buffer unit, the condition that liquid crystal distribution is uneven after collision of the liquid crystal display is further avoided, and the conditions that the display of the liquid crystal display is fuzzy after collision, and dynamic images even have trailing phenomena are avoided; the service life of the whole liquid crystal display is prolonged and the application place is improved.

2. According to the liquid crystal display, the vibration amplitude of the display screen is reduced through the matching of the rubber rod and the wavy cavity, the vibration condition of the display screen is effectively absorbed through the rubber rod, and the rubber rod indirectly expands in the extending process due to the wavy cavity of the rubber rod, so that the contact tightness between the rubber rod and the display screen is further ensured, and the vibration absorption effect of the rubber rod is enhanced.

Drawings

The invention will be further explained with reference to the drawings.

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a side view of the present invention;

FIG. 3 is a partial enlarged view of FIG. 2 at A;

FIG. 4 is a schematic view of the structure of a rubber rod according to the present invention;

in the figure: the display screen comprises a base 1, a bracket 2, a shell 3, a sliding chute 31, a display screen 4, a buffer unit 5, a pressing plate 51, a supporting column 511, a U-shaped rod 52, a rotating wheel 521, an air bag 53, an antenna 531, a rubber rod 54, a wave-shaped cavity 541 and a folded rod 542.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1 to 4, the liquid crystal display according to the present invention includes a base 1, a bracket 2, a housing 3 and a display screen 4; the bracket 2 is arranged on the base 1; the shell 3 is arranged on the bracket 2 through screws, and a sliding groove 31 is formed in the inner side wall of the shell 3; a buffer unit 5 is arranged in the chute 31; the display screen 4 is arranged in the sliding groove 31; the buffer unit 5 comprises a pressing plate 51, a U-shaped rod 52 and an air bag 53; the pressing plate 51 is mounted on the inner side wall of the sliding chute 31 through a spring, and a supporting column 511 is arranged on the side wall of the pressing plate 51 close to the display screen 4; the air bag 53 is arranged between the pressing plate 51 and the display screen 4; the U-shaped rod 52 is arranged in the sliding chute 31, one end of the U-shaped rod 52 is contacted with the side wall of the pressing plate 51 through a friction block, and the other end of the U-shaped rod 52 is contacted with the side wall of the air bag 53 through the friction block; the damage of the display screen 4 after collision is reduced through the matching of the shell 3, the display screen 4 and the buffer unit 5; in operation, when the side wall of the display is collided, the shell 3 is firstly stressed, at this time, the shell 3 transmits the pressure to the pressing plate 51 through the spring, the spring reduces the distance between the pressing plate 51 and the side wall of the chute 31 after being stressed, so that the pressing plate 51 generates pressure to the U-shaped rod 52, the U-shaped rod 52 rotates after being stressed, the U-shaped rod 52 generates pressure to the air bag 53 during the rotation process, the internal air pressure of the air bag 53 is increased after being stressed, the air bag 53 between the pressing plate 51 and the display screen 4 expands and deforms after being stressed, the gap between the pressing plate 51 and the display screen 4 is increased during the deformation of the air bag 53, so that the display screen 4 is not contacted with the supporting column 511 any more, the vibration is prevented from being transmitted to the display screen 4 through the supporting column 511 when the shell 3 is collided and generates vibration, and the air bag 53 can effectively absorb the vibration generated by the shell 3 after being expanded and deformed, therefore, the damage to the display screen 4 is further reduced, the condition that liquid crystal is unevenly distributed after the liquid crystal display collides is further avoided, and the service life and the application place of the whole liquid crystal display are prolonged.

As an embodiment of the present invention, the side wall of the display screen 4 is provided with a rubber rod 54; a wave-shaped cavity 541 is formed in the rubber rod 54, and the wave-shaped cavity 541 is communicated with the air bag 53; the vibration amplitude of the display screen 4 is reduced through the matching of the rubber rod 54 and the wave-shaped cavity 541; in operation, when the side wall of the display is collided, the housing 3 is firstly pressed, at this time, the housing 3 transmits the pressure to the pressing plate 51 through the spring, the spring reduces the distance between the pressing plate 51 and the side wall of the chute 31 after being pressed, so that the pressing plate 51 generates pressure to the U-shaped rod 52, the U-shaped rod 52 rotates after being pressed, the U-shaped rod 52 generates pressure to the air bag 53 during the rotation process, the air bag 53 transmits a part of gas into the wavy cavity 541 after being pressed, the rubber rod 54 is simultaneously pressed, deformed and extended and clings to the side wall of the chute 31 of the display 4, the vibration condition of the display 4 is effectively absorbed through the rubber rod 54, and the rubber rod 54 indirectly expands during the extension process due to the wavy cavity 541 of the rubber rod 54, thereby further ensuring the contact tightness between the rubber rod 54 and the display 4, the vibration absorbing effect of the rubber rod 54 is enhanced.

As an embodiment of the present invention, the corrugated cavity 541 is symmetrically provided with folding bars 542 near the wave troughs, and the folding directions of the folding bars 542 face the wave troughs near thereto; the vibration potential energy of the rubber rod 54 is absorbed through the matching of the rubber rod 54, the wave-shaped cavity 541 and the folded rod 542; in operation, after the side wall of the display is collided, the shell 3 is firstly stressed, at this time, the shell 3 transmits the pressure to the pressing plate 51 through the spring, the spring reduces the distance between the pressing plate 51 and the side wall of the chute 31 after being stressed, so that the pressing plate 51 generates pressure on the U-shaped rod 52, the U-shaped rod 52 rotates after being stressed, the U-shaped rod 52 generates pressure on the air bag 53 during the rotation process, the air bag 53 transmits a part of gas into the wavy cavity 541 after being stressed, the rubber rod 54 is simultaneously stressed, deformed and extended and clings to the side wall of the chute 31 of the display screen 4, and the vibration condition of the display screen 4 is effectively absorbed through the rubber rod 54; after the collision process is finished, when the shell 3 does not generate pressure to the display screen 4 any more, the U-shaped rod 52 is reset and rotated, the air bag 53 is not stressed any more, the pressing plate 51 is reset under the elastic force of the spring until the supporting column 511 is contacted with the display screen 4, the pressure in the rubber rod 54 is recovered, and the air bag is reset under the elastic force of the rubber rod 54, so that the rubber rod 54 is prevented from shaking left and right in the recovery process and colliding with the display screen 4, the folding rods 542 are symmetrically arranged at positions close to the wave troughs, the folding directions of the folding rods 542 face the wave trough direction close to the folding rods, the resetting of the rubber rod 54 is slowed down through the folding rods 542, the rubber rod 54 is prevented from vibrating after being reset at an excessively high speed, the recovery condition of the air bag 53 is slowed down, and the impact force generated by the supporting column 511 on the side wall of the display screen 4 during the resetting is reduced, further reducing damage to the liquid crystal display after the sidewalls are impacted.

In one embodiment of the present invention, the side wall of the air bag 53 is provided with a feeler 531, the feeler 531 is communicated with the air bag 53, and the vibration transmitted by the pressing plate 51 is reduced by the contact between the feeler 531 and the pressing plate 51; in operation, when the side wall of the display is collided, the shell 3 is firstly pressed, at this time, the shell 3 transmits the pressure to the pressing plate 51 through the spring, the spring is pressed to reduce the distance between the pressing plate 51 and the side wall of the chute 31, so that the pressing plate 51 generates pressure to the U-shaped rod 52, the U-shaped rod 52 rotates after being pressed, the U-shaped rod 52 generates pressure to the air bag 53 in the rotating process, the internal air pressure of the air bag 53 is increased after being pressed, the air bag 53 between the pressing plate 51 and the display 4 expands and deforms after being pressed, the gap between the pressing plate 51 and the display 4 is increased in the deformation process of the air bag 53, so that the display 4 is not contacted with the supporting column 511 any more, the vibration is prevented from being transmitted to the display 4 through the supporting column 511 when the shell 3 is collided and generates vibration, and the feeler 531 is tightly contacted with the display 4 and the side wall of the display 51 during the deformation increase of the air bag 53, therefore, the horn 531 absorbs the vibration of the pressing plate 51, and further acts as a buffer.

As an embodiment of the present invention, the side wall of the chute 31 is provided with an inward concave radian near the U-shaped rod 52, so as to increase the torsion force applied to the U-shaped rod 52 during the flowing process; in operation, when the side wall of the display is impacted, the housing 3 is firstly pressed, the housing 3 transmits the pressure to the pressing plate 51 through the spring, the spring reduces the distance between the pressing plate 51 and the side wall of the chute 31 after being pressed, therefore, the pressing plate 51 generates pressure on the U-shaped rod 52, the U-shaped rod 52 rotates after being pressed, in order to enable the U-shaped rod 52 to generate larger pressure on the air bag 53 in the rotating process, the side wall of the sliding chute 31 is provided with an inward concave radian near the U-shaped rod 52, thereby increasing the torque to which the U-shaped lever 52 is subjected during rotation, increasing the degree of rotation of the U-shaped lever 52, thereby enhancing the compression degree of the air bag 53, leading the air bag 53 to generate larger expansion deformation after being compressed, further ensuring that the display screen 4 is not contacted with the pressing plate 51 any more, and the contact surface of the air bag 53 and the pressing plate 51 is increased so that the air bag 53 can absorb a stronger vibration amplitude.

As an embodiment of the present invention, the U-shaped rod 52 is hinged with a rotating wheel 521 at the side wall contacting with the sliding chute 31, so as to convert the sliding friction force into the rolling friction force and reduce the force dispersion of the U-shaped rod 52; in operation, after the lateral wall of the display receives the collision, the shell 3 receives pressure first, at this moment, the shell 3 transmits the pressure to the pressing plate 51 through the spring, the spring reduces the distance between the pressing plate 51 and the lateral wall of the chute 31 after being pressed, thereby generating pressure to the U-shaped rod 52 through the pressing plate 51, the U-shaped rod 52 rotates after being pressed, as the U-shaped rod 52 is hinged with the rotating wheel 521 at the lateral wall contacting with the chute 31, the sliding friction force between the U-shaped rod 52 and the lateral wall of the chute 31 is converted into the rolling friction force between the roller and the lateral wall of the chute 31, thereby reducing the friction force received by the U-shaped rod 52 in the rotating process, shortening the rotating time of the U-shaped rod 52, further enhancing the whole practicability of the buffer unit 5, prolonging the whole service life of the liquid crystal display, and reducing the probability of the liquid crystal display that the display has display problems after the collision.

In operation, when the side wall of the display is collided, the shell 3 is firstly stressed, at this time, the shell 3 transmits the pressure to the pressing plate 51 through the spring, the spring reduces the distance between the pressing plate 51 and the side wall of the chute 31 after being stressed, so that the pressing plate 51 generates pressure to the U-shaped rod 52, the U-shaped rod 52 rotates after being stressed, the U-shaped rod 52 generates pressure to the air bag 53 during the rotation process, the internal air pressure of the air bag 53 is increased after being stressed, the air bag 53 between the pressing plate 51 and the display screen 4 expands and deforms after being stressed, the gap between the pressing plate 51 and the display screen 4 is increased during the deformation of the air bag 53, so that the display screen 4 is not contacted with the supporting column 511 any more, the vibration is prevented from being transmitted to the display screen 4 through the supporting column 511 when the shell 3 is collided and generates vibration, and the air bag 53 can effectively absorb the vibration generated by the shell 3 after being expanded and deformed, therefore, the damage to the display screen 4 is further reduced, the condition that liquid crystal is unevenly distributed after the liquid crystal display collides is further avoided, and the service life and the application place of the whole liquid crystal display are prolonged; when the side wall of the display is collided, the housing 3 is firstly pressed, and the housing 3 transmits the pressing force to the pressing plate 51 through the spring, the spring is pressed to reduce the distance between the pressing plate 51 and the side wall of the slide groove 31, so that the pressing plate 51 presses the U-shaped rod 52, the U-shaped rod 52 rotates after being pressed, the U-shaped rod 52 presses the air bag 53 during the rotation, the air bag 53 transfers a part of the gas into the wave-shaped cavity 541 after being pressed, so that the rubber rod 54 is simultaneously pressed, deformed and extended, and is attached to the side wall of the display screen 4 close to the chute 31, so that the vibration of the display screen 4 is effectively absorbed by the rubber rod 54, and due to the wave-shaped cavities 541 of the rubber rod 54, the rubber rod 54 expands indirectly during the elongation process, thereby further ensuring the contact tightness of the rubber rod 54 and the display screen 4 and enhancing the vibration absorption effect of the rubber rod 54; when the side wall of the display is collided, the shell 3 is firstly stressed, the shell 3 transmits the pressure to the pressing plate 51 through the spring at the moment, the spring reduces the distance between the pressing plate 51 and the side wall of the chute 31 after being stressed, so that the pressing plate 51 generates pressure on the U-shaped rod 52, the U-shaped rod 52 rotates after being stressed, the U-shaped rod 52 generates pressure on the air bag 53 in the rotating process, and the air bag 53 transmits a part of gas into the wavy cavity 541 after being stressed, so that the rubber rod 54 is simultaneously stressed, deformed and extended and clings to the side wall of the display screen 4 close to the chute 31, and the vibration condition of the display screen 4 is effectively absorbed through the rubber rod 54; after the collision process is finished, when the shell 3 does not generate pressure to the display screen 4 any more, the U-shaped rod 52 is reset and rotated, the air bag 53 is not stressed any more, the pressing plate 51 is reset under the elastic force of the spring until the supporting column 511 is contacted with the display screen 4, the pressure in the rubber rod 54 is recovered, and the air bag is reset under the elastic force of the rubber rod 54, so that the rubber rod 54 is prevented from shaking left and right in the recovery process and colliding with the display screen 4, the folding rods 542 are symmetrically arranged at positions close to the wave troughs, the folding directions of the folding rods 542 face the wave trough direction close to the folding rods, the resetting of the rubber rod 54 is slowed down through the folding rods 542, the rubber rod 54 is prevented from vibrating after being reset at an excessively high speed, the recovery condition of the air bag 53 is slowed down, and the impact force generated by the supporting column 511 on the side wall of the display screen 4 during the resetting is reduced, the damage to the side wall of the liquid crystal display after the side wall is impacted is further reduced; when the side wall of the display is collided, the shell 3 is firstly stressed, the shell 3 transmits the pressure to the pressing plate 51 through the spring at the moment, the spring reduces the distance between the pressing plate 51 and the side wall of the chute 31 after being stressed, so that the pressing plate 51 generates pressure to the U-shaped rod 52, the U-shaped rod 52 rotates after being stressed, the U-shaped rod 52 generates pressure to the air bag 53 in the rotating process, the air pressure in the air bag 53 is increased after being stressed, the air bag 53 between the pressing plate 51 and the display screen 4 expands and deforms after being stressed, the gap between the pressing plate 51 and the display screen 4 is increased in the deformation process of the air bag 53, the display screen 4 is not contacted with the supporting column 511 any more, the vibration is prevented from being transmitted to the display screen 4 through the supporting column 511 when the shell 3 is impacted and triggered to vibrate, and the feeler 531 is tightly contacted with the side wall of the display screen 4 and the pressing plate 51 during the deformation increase process of the air bag 53, therefore, the antenna 531 further absorbs the vibration of the pressing plate 51, and further plays a role in buffering; when the side wall of the display is collided, the housing 3 is firstly pressed, and the housing 3 transmits the pressing force to the pressing plate 51 through the spring, the spring is pressed to reduce the distance between the pressing plate 51 and the side wall of the slide groove 31, therefore, the pressing plate 51 generates pressure on the U-shaped rod 52, the U-shaped rod 52 rotates after being pressed, in order to enable the U-shaped rod 52 to generate larger pressure on the air bag 53 in the rotating process, the side wall of the sliding chute 31 is provided with an inward concave radian near the U-shaped rod 52, thereby increasing the torque to which the U-shaped lever 52 is subjected during rotation, increasing the degree of rotation of the U-shaped lever 52, thereby enhancing the compression degree of the air bag 53, leading the air bag 53 to generate larger expansion deformation after being compressed, further ensuring that the display screen 4 is not contacted with the pressing plate 51 any more, and the contact surface of the air bag 53 and the pressing plate 51 is increased, so that the air bag 53 can absorb stronger vibration amplitude; when the side wall of the display is collided, the shell 3 is firstly stressed, the shell 3 transmits the pressure to the pressing plate 51 through the spring at the moment, the distance between the pressing plate 51 and the side wall of the chute 31 is reduced after the spring is stressed, so that the pressing plate 51 generates pressure on the U-shaped rod 52, the U-shaped rod 52 rotates after being stressed, the side wall of the U-shaped rod 52 in contact with the chute 31 is hinged with the rotating wheel 521, the sliding friction force between the U-shaped rod 52 and the side wall of the chute 31 is converted into the rolling friction force between the roller and the side wall of the chute 31, the friction force borne by the U-shaped rod 52 in the rotating process is reduced, the rotating time of the U-shaped rod 52 is shortened, the whole practicability of the buffer unit 5 is further enhanced, the whole service life of the liquid crystal display is prolonged, and the probability of the display problem after the collision is reduced.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A liquid crystal display, characterized by: comprises a base (1), a bracket (2), a shell (3) and a display screen (4); the bracket (2) is arranged on the base (1); the shell (3) is arranged on the bracket (2) through a screw, and a sliding groove (31) is formed in the inner side wall of the shell (3); a buffer unit (5) is arranged in the sliding groove (31); the display screen (4) is arranged in the sliding groove (31); the buffer unit (5) comprises a pressing plate (51), a U-shaped rod (52) and an air bag (53); the pressing plate (51) is installed on the inner side wall of the sliding groove (31) through a spring, and a supporting column (511) is arranged on the side wall, close to the display screen (4), of the pressing plate (51); the air bag (53) is arranged between the pressing plate (51) and the display screen (4); the U-shaped rod (52) is installed in the sliding groove (31), one end of the U-shaped rod (52) is in contact with the side wall of the pressing plate (51) through a friction block, and the other end of the U-shaped rod (52) is in contact with the side wall of the air bag (53) through the friction block; the damage of the display screen (4) after collision is reduced through the matching of the shell (3), the display screen (4) and the buffer unit (5).

2. A liquid crystal display according to claim 1, wherein: the side wall of the display screen (4) is provided with a rubber rod (54); a wavy cavity (541) is formed in the rubber rod (54), and the wavy cavity (541) is communicated with the air bag (53); the vibration amplitude of the display screen (4) is reduced through the matching of the rubber rod (54) and the wave-shaped cavity (541).

3. A liquid crystal display according to claim 2, wherein: folding rods (542) are symmetrically arranged at positions, close to wave troughs, of the wavy cavities (541), and the folding directions of the folding rods (542) face the wave troughs close to the folding rods; the vibration potential energy of the rubber rod (54) is absorbed through the matching of the rubber rod (54), the wave-shaped cavity (541) and the zigzag rod (542).

4. A liquid crystal display according to claim 2, wherein: a feeler (531) is arranged on the side wall of the air bag (53), the feeler (531) is communicated with the air bag (53), and vibration transmitted by the pressing plate (51) is reduced through the contact between the feeler (531) and the pressing plate (51).

5. A liquid crystal display according to claim 1, wherein: the side wall of the sliding groove (31) is provided with an inward concave radian at the position close to the U-shaped rod (52), so that the torsional force borne by the U-shaped rod (52) in the flowing process is increased.

6. The liquid crystal display of claim 5, wherein: the U-shaped rod (52) is hinged with a rotating wheel (521) on the side wall which is in contact with the sliding chute (31), so that sliding friction force is converted into rolling friction force, and the stress dispersion of the U-shaped rod (52) is reduced.