Liquid crystal display device and backlight unit module thereof

Abstract

The application discloses a liquid crystal display device and a backlight unit module thereof, which comprises a shell and a base, symmetric fixed plates are fixedly connected to the upper end of the base close to one side of the shell, a fixed rod is fixedly connected to the ends of the symmetric fixed plates away from the base, a sliding groove is formed in the side of the shell close to the fixed plate, an installation plate is vertically and slidingly connected to the inner cavity of the sliding groove, the side of the installation plate away from the sliding groove is rotatably connected to the outer wall of the fixed rod, an adjusting mechanism for adjusting the vertical height and the pitch angle of the shell is arranged in the middle of the lower end of the shell, and a limiting mechanism for fixing the height and the angle of the shell is arranged on the side of the inner cavity of the shell close to the sliding groove. The C-shaped block is pushed to drive the adjusting plate to move upwards, so that the positions of the positioning rod and the limiting block are controlled, and thus the height of the shell is kept fixed when the pitch angle of the shell is adjusted, and the angle of the shell is kept fixed when the height of the shell is adjusted.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of liquid crystal display devices, and particularly relates to a liquid crystal display device and a backlight unit module thereof. BACKGROUND

[0002] A liquid crystal display is an active matrix liquid crystal display driven by a thin film transistor, which mainly stimulates liquid crystal molecules by electric current to generate points, lines and surfaces to form a picture in cooperation with a back lamp. IPS, TFT and SLCD all belong to the subcategory of LCDs. The working principle is that, under the action of an electric field, the arrangement direction of liquid crystal molecules changes, the transmittance of an external light source changes (modulation), and an electric-optical conversion is completed. Then, through different excitations of R, G and B three primary color signals, red, green and blue three primary color filters are used to complete color reappearing in time and space domains. The dynamic driving method of the liquid crystal display is to cyclically apply selection pulses to row electrodes and apply response selection or non-selection driving pulses to all column electrodes, so as to realize the display function of all pixels in a certain row.

[0003] For example, Chinese Patent Publication No. CN114857427B provides a dynamic driving liquid crystal display, which comprises a display body, a worm gear arranged in the middle part of the back shell of the display body, a shaft rod arranged on the middle shaft part of the worm gear, a connecting frame rotatably connected with the shaft rod, and an adjusting mechanism arranged on the side wall end of the connecting frame and used for reducing the rotation amplitude of the worm gear relative to the connecting frame in the wall mode.

[0004] In this scheme, the display pitch angle and height are adjusted by the adjusting mechanism. However, the worm and the screw rod for adjusting the angle and the height are arranged above the back of the display. Therefore, when adjusting, a person needs to stand and adjust, and then sit down to judge whether the display is adjusted to the required position. Since the standing posture and the sitting posture have different requirements for the position of the display, the person may need to repeatedly stand and adjust. SUMMARY

[0005] The present application aims to provide a liquid crystal display device to solve the problems in the background art.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical scheme.

[0007] The utility model provides a kind of liquid crystal display device, including shell and base, the base upper end is fixedly connected with symmetrical fixed plate near the side of shell, the symmetrical fixed plate is fixedly connected with fixed rod jointly at the end away from base, the shell is equipped with the slide groove near fixed plate side, the inner chamber of the slide groove is vertically slidably connected with mounting plate, the outer wall of the fixed rod is rotatably connected with the side of mounting plate away from slide groove, the lower end of the shell is equipped with adjusting mechanism for adjusting the vertical height and pitch angle of shell in middle part, the inner chamber of the shell is equipped with limiting mechanism for fixing the height and angle of shell near the side of slide groove, when adjusting mechanism vertically moves up, limiting mechanism horizontally moves away from the position of fixed rod.

[0008] As a further aspect of the application: the mounting plate is fixedly connected with a connecting block at the middle part of one end near the fixed rod, the end of the connecting block away from the mounting plate is slidably attached to the outer wall of the fixed rod, and the middle part of both sides of the connecting block is fixedly connected with a sliding block. The outer wall of the fixed rod is provided with an arc-shaped slot that slidably cooperates with the sliding block. The middle part of the connecting block is slidably connected with a positioning rod. The middle part of the outer wall of the fixed rod near the mounting plate is provided with a plurality of positioning grooves.

[0009] As a further aspect of the application: the side of the mounting plate away from the connecting block is slidably connected with symmetrical limiting blocks. The inner chamber of the slide groove is provided with a limiting groove. The limiting mechanism includes an adjusting plate that is vertically slidably connected to the middle part of the inner chamber of the shell. The position of the adjusting plate near the positioning rod is fixedly connected with a driven block. Both sides of the driven block are provided with a driven plate that is horizontally slidably connected to the middle part of the inner chamber of the shell. The middle part of the side of the driven plate away from the adjusting plate is fixedly connected with the positioning rod. The side of the upper end of the driven block away from the positioning rod is slidably connected with symmetrical moving rods.

[0010] As a further aspect of the application: the side of the driven plate near the driven block is provided with a guide slot. The end of the guide slot near the positioning rod is provided with a reset slot. The end of the reset slot away from the guide slot is provided with a balance slot. The inner chamber of the reset slot near the balance slot and the inner chamber of the balance slot near the guide slot are both fixedly connected with inclined blocks. The guide slot, the reset slot, and the balance slot all slidably cooperate with the outer wall of the moving rod.

[0011] As a further aspect of the application: the side of the adjusting plate away from the driven block is attached with a driving plate on both sides. The driving plate is horizontally slidably connected to the middle part of the inner chamber of the shell. The side of the driving plate near the mounting plate is fixedly connected with a push plate. The side of the driving plate near the adjusting plate is provided with two groups of parallel driving slots. Both sides of the driving plate near the driving slots are fixedly connected with driven rods. The outer wall of the end of the driven rod away from the adjusting plate slidably cooperates with the driving slot.

[0012] As a further scheme of the present application: the driving groove is composed of a vertical groove and an inclined groove, the vertical height between the two ends of the inclined groove is equal to the vertical height of the vertical groove, the vertical height of the vertical groove is equal to the vertical height between the two ends of the moving rod, the center position of the push plate and the center position of the limiting groove are located in the same vertical plane, and the vertical height of the push plate is the same as the vertical height of the inner cavity of the sliding groove.

[0013] As a further scheme of the present application: a through groove is formed in the lower middle part of the shell near the side of the mounting plate, the adjusting mechanism comprises a C-shaped block, the C-shaped block is vertically and slidingly connected to the inner cavity side wall of the through groove, the upper middle part of the C-shaped block is fixedly connected with an adjusting block, the lower end of the adjusting block is fixedly connected with an adjusting plate, the two sides of the end of the adjusting block away from the C-shaped block are slidingly connected with symmetric adjusting rods, and the inner cavity of the adjusting block is vertically and slidingly connected with a pull rod.

[0014] As a further scheme of the present application: the upper end of the pull rod is fixedly connected with symmetric traction ropes, the number and position of the traction ropes correspond to the adjusting rods, the end of the traction rope away from the pull rod is connected to the middle part of the end of the adjusting rod near the adjusting plate, and the inner cavity of the adjusting block is provided with a rope groove in sliding fit with the traction rope.

[0015] As a further scheme of the present application: the inner cavity side wall of the through groove is provided with symmetric vertical grooves, the end of the adjusting rod away from the adjusting block is in sliding fit with the vertical grooves, the inner cavity upper part of the vertical groove is provided with a recess, the recess is farther away from the center position of the adjusting block than the vertical groove, the inner cavity top of the recess is provided with a clamping groove, and the clamping groove is farther away from the center position of the adjusting block than the recess.

[0016] A backlight unit module comprises the liquid crystal display device, further comprising a liquid crystal panel, the liquid crystal panel is fixedly connected with the inner cavity of the shell away from the side of the sliding groove, the side of the liquid crystal panel near the mounting plate is sequentially provided with a first optical film, a light guide plate, a lamp tube emitting plate and a second optical film, and the side walls of the first optical film, the light guide plate, the lamp tube emitting plate and the second optical film are fixedly connected with the inner cavity side wall of the shell.

[0017] Compared with the prior art, the backlight unit module has the advantages that:

[0018] When the C-block is initially pushed upwards, the moving rod moves to the connection between the guide groove and the reset groove, thereby moving the positioning rod away from the inner cavity of the positioning groove, allowing the pitch angle of the housing to be adjusted. At this time, the driven rod moves to the connection between the vertical groove and the inclined groove, thus preventing the height of the housing from changing due to force during the adjustment of the pitch angle. When adjusting the height of the housing, the C-block is pushed upwards again, causing the driven rod to enter the inclined groove, thereby moving the push plate to the middle of the inner cavity of the limiting groove. At this time, the moving rod moves to the connection between the reset groove and the balance groove, causing the positioning rod to re-engage in the inner cavity of the positioning groove, limiting and fixing the pitch angle of the housing, thus preventing the angle of the housing from changing when adjusting the height. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0020] Figure 2 This is a schematic diagram of the slide groove in this invention.

[0021] Figure 3 This is a schematic diagram of the structure of the fixing rod in this invention.

[0022] Figure 4 This is a schematic diagram of the driven block in this invention.

[0023] Figure 5 This is a schematic diagram of the driven plate in this invention.

[0024] Figure 6 This is a schematic diagram of the limiting mechanism in this invention.

[0025] Figure 7 For the present invention Figure 6 A schematic diagram of the structure of area A in the middle.

[0026] Figure 8 For the present invention Figure 6 A schematic diagram of the structure of area B in the middle.

[0027] Figure 9 This is a schematic diagram of the drive board in this invention.

[0028] Figure 10 This is a schematic diagram of the adjustment mechanism in this invention.

[0029] Figure 11 This is a schematic diagram of the adjusting rod in this invention.

[0030] Figure 12 This is a schematic diagram of the vertical groove in this invention.

[0031] In the figure: 1, the shell; 2, the base; 3, the mounting plate; 4, the fixed plate; 5, the sliding groove; 6, the connecting block; 7, the sliding block; 8, the arc-shaped groove; 9, the fixed rod; 10, the positioning groove; 11, the positioning rod; 12, the limiting block; 13, the limiting groove; 14, the vertical groove; 15, the recess; 16, the driven plate; 17, the driven block; 18, the moving rod; 19, the guide groove; 20, the reset groove; 21, the balance groove; 22, the adjusting plate; 23, the driven rod; 24, the driving plate; 25, the driving groove; 26, the push plate; 27, the liquid crystal panel; 28, the first optical film; 29, the light guide plate; 30, the lamp tube emitting plate; 31, the second optical film; 32, the clamping groove; 33, the through groove; 34, the C-shaped block; 35, the adjusting block; 36, the pull rod; 37, the adjusting rod; 38, the traction rope; 39, the inclined block. DETAILED DESCRIPTION

[0032] Please refer to Figures 1-2 In the embodiment of the present application, a liquid crystal display device comprises a shell 1 and a base 2, the upper end of the base 2 is fixedly connected with symmetrical fixed plates 4 near one side of the shell 1, the ends of the symmetrical fixed plates 4 away from the base 2 are fixedly connected with a fixed rod 9, the side of the shell 1 near the fixed plates 4 is provided with a sliding groove 5, the inner cavity of the sliding groove 5 is vertically slidably connected with a mounting plate 3, the side of the mounting plate 3 away from the sliding groove 5 is rotatably connected with the outer wall of the fixed rod 9, the middle part of the lower end of the shell 1 is provided with an adjusting mechanism for adjusting the vertical height and the pitch angle of the shell 1, and the side of the inner cavity of the shell 1 near the sliding groove 5 is provided with a limiting mechanism for fixing the height and the angle of the shell 1, when the adjusting mechanism vertically moves upward, the limiting mechanism horizontally moves away from the position of the fixed rod 9.

[0033] Please refer to Figure 3 The inner cavity side wall of the sliding groove 5 is provided with a T-shaped groove, the two sides of the mounting plate 3 are fixedly connected with T-shaped blocks, the T-shaped blocks are slidably connected in the T-shaped groove, so that the mounting plate 3 can only slide in the inner cavity of the sliding groove 5 relative to the shell 1, the middle part of the end of the mounting plate 3 near the fixed rod 9 is fixedly connected with a connecting block 6, the end of the connecting block 6 away from the mounting plate 3 is slidably attached to the outer wall of the fixed rod 9, the middle part of the two sides of the connecting block 6 is fixedly connected with sliding blocks 7, the outer wall of the fixed rod 9 is provided with arc-shaped grooves 8 slidably matched with the sliding blocks 7, that is, the end of the sliding block 7 away from the mounting plate 3 is slidably connected in the inner cavity of the arc-shaped groove 8, so that when the sliding block 7 slides in the inner cavity of the arc-shaped groove 8, the connecting block 6 and the mounting plate 3 will be synchronously rotated around the center of the fixed rod 9, so as to change the pitch angle of the mounting plate 3, and further change the pitch angle of the shell 1, the middle part of the connecting block 6 is slidably connected with a positioning rod 11, the middle part of the outer wall of the fixed rod 9 near the mounting plate 3 is provided with a plurality of positioning grooves 10, and the end of the positioning rod 11 away from the mounting plate 3 is detachably connected with the positioning grooves 10.

[0034] Please refer to Figure 4And the positioning rod 11 is composed of a hard rod and a flexible block, and the end of the positioning rod 11 away from the mounting plate 3 is a flexible block, when the hard rod part and the flexible block are located in the inner cavity of the positioning groove 10, the position of the positioning rod 11 will be fixed by the positioning groove 10, so that the connecting block 6 cannot continue to rotate around the center of the fixed rod 9, so that the pitch angle of the mounting plate 3 and the shell 1 is fixed, and when the hard rod is separated from the positioning groove 10 and only the flexible block is in the inner cavity of the positioning groove 10, the connecting block 6 can rotate freely around the center of the fixed rod 9, in the process of rotating, the flexible block will constantly separate from the positioning groove 10 and enter the inner cavity of the positioning groove 10 again, the flexible block will bend when it separates from the positioning groove 10, and it will reset again when it enters the positioning groove 10, so that the flexible block constantly bends and resets when rotating to adjust the angle of the shell 1, so that the mounting plate 3 can be conveniently judged whether it is rotated to the appropriate position, that is, when the flexible block rotates to the inner cavity of the other positioning groove 10, it can push the positioning rod 11 to make the hard rod enter the inner cavity of the positioning groove 10 again, so that the angle of the mounting plate 3 and the shell 1 is fixed.

[0035] Please refer to Figure 3 The side of the mounting plate 3 away from the connecting block 6 is slidably connected with symmetrical limiting blocks 12, the inner cavity side wall of the sliding groove 5 is provided with limiting grooves 13 matched with the limiting blocks 12, and the end of the limiting block 12 away from the limiting groove 13 is elastically connected with the inner cavity side wall of the mounting plate 3 through a spring. The limiting mechanism comprises an adjusting plate 22, the adjusting plate 22 is vertically and slidably connected in the middle part of the inner cavity of the shell 1, the position close to the positioning rod 11 of the adjusting plate 22 is fixedly connected with a driven block 17, the two sides of the driven block 17 are provided with driven plates 16 horizontally and slidably connected with the middle part of the inner cavity of the shell 1, the middle part of the side of the driven plate 16 away from the adjusting plate 22 is fixedly connected with the positioning rod 11, and the upper end of the driven block 17 is slidably connected with symmetrical moving rods 18 on the side away from the positioning rod 11. The inner cavity side wall between the moving rod 18 and the driven block 17 is elastically connected through a spring, that is, when the end of the moving rod 18 away from the driven block 17 is extruded, the moving rod 18 will shrink into the inner cavity of the driven block 17, and it will pop out and reset again after not being extruded.

[0036] Please refer to Figure 5The driven plate 16 is provided with a guide groove 19 on the side close to the driven block 17, the guide groove 19 is in sliding fit with the outer wall of the moving rod 18, the guide groove 19 is provided with a reset groove 20 on the end close to the positioning rod 11, the reset groove 20 is provided with a balance groove 21 on the end away from the guide groove 19, the balance groove 21 connects the end of the reset groove 20 and the guide groove 19 away from the positioning rod 11, the reset groove 20 is fixedly connected with an inclined block 39 on the side close to the balance groove 21, and the balance groove 21 is fixedly connected with an inclined block 39 on the side close to the guide groove 19, the side of the inclined block 39 close to the balance groove 20 is closer to the position of the driven block 17, that is, when the moving rod 18 moves upwards along the driven block 17, the moving rod 18 will move from the guide groove 19 to the reset groove 20, and then move to the connection position of the reset groove 20 and the balance groove 21, when the moving rod 18 moves along the inclined block 39 close to the reset groove 20, the moving rod 18 will move along the inclined surface of the inclined block 39 and shrink into the driven block 17, and then reset after passing through the inclined block 39, and the inclined block 39 arranged at the connection position of the balance groove 21 and the guide groove 19 can avoid the moving rod 18 entering the balance groove 21 from the connection position of the guide groove 19 and the balance groove 21, so that the moving rod 18 can only move in the guide groove 19, the reset groove 20 and the balance groove 21 in turn, when the driven block 17 drives the moving rod 18 to move upwards, the moving rod 18 will move in the guide groove 19 to the connection position of the guide groove 19 and the reset groove 20, so as to drive the moving rod 18 to move horizontally away from the position of the mounting plate 3, and then drive the positioning rod 11 to move horizontally, so that the hard rod part of the positioning rod 11 is separated from the positioning groove 10, so as to facilitate the adjustment of the pitch angle of the shell 1.

[0037] Please refer to Figures 6-7 and Figure 9The two sides of the adjusting plate 22 away from one end of the driven block 17 are attached with the driving plates 24, the driving plates 24 are horizontally and slidingly connected to the middle part of the inner cavity of the shell 1, the side of the driving plate 24 close to the mounting plate 3 is fixedly connected with the push plate 26, the side of the driving plate 24 close to the adjusting plate 22 is provided with two groups of parallel driving grooves 25, the driving grooves 25 are composed of vertical grooves and inclined grooves, the vertical height between the two ends of the inclined groove is equal to the vertical height of the vertical groove, and the vertical height of the vertical groove is equal to the vertical height between the two ends of the moving rod 18, the size of the moving rod 18 and the guide groove 19 is the same but the positions are different, the two sides of the driving plate 24 close to the driving grooves 25 are fixedly connected with the driven rods 23, the outer wall of the end of the driven rod 23 away from the adjusting plate 22 is slidingly matched with the driving grooves 25, that is, in the process of moving along with the adjusting plate 22, the driven rod 23 will slide in the inner cavities of the vertical grooves and the inclined grooves, when the driven rod 23 slides in the vertical groove, the position of the driving plate 24 remains stationary, when the driven rod 23 slides in the inner cavity of the inclined groove, the driving plate 24 will move horizontally towards the direction where the mounting plate 3 is located, thereby driving the push plate 26 to move towards the direction where the mounting plate 3 is located, the central position of the push plate 26 and the central position of the limiting groove 13 are located in the same vertical plane, the vertical height of the push plate 26 is the same as the vertical height of the inner cavity of the sliding groove 5, the horizontal width of the push plate 26 is smaller than the horizontal width of the inner cavity of the limiting groove 13, that is, when the push plate 26 moves along with the driving plate 24 to the position close to the mounting plate 3, the end of the push plate 26 away from the driving plate 24 will enter the middle part of the inner cavity of the limiting groove 13, thereby moving the limiting block 12 located in the inner cavity of the limiting groove 13 towards the inner cavity of the mounting plate 3, that is, by pushing the limiting block 12 to move through the push plate 26, the end of the limiting block 12 away from the mounting plate 3 can be close to the side of the limiting groove 13 close to the mounting plate 3, the upper and lower sides of the limiting block 12 are provided with arc surfaces, at this time, the mounting plate 3 and the shell 1 will be elastically limited through the cooperation of the limiting block 12 and the limiting groove 13, at this time, the shell 1 can be pushed vertically to adjust the height of the shell 1, that is, in the process of pushing the shell 1, the limiting block 12 is pressed by the edge of the limiting groove 13, thereby making the limiting block 12 contract towards the inner cavity of the mounting plate 3, and when the limiting block 12 coincides with the positions of other limiting grooves 13, the limiting block 12 will pop out from the inner cavity of the mounting plate 3 again and be elastically connected in the inner cavity of the limiting groove 13, thereby completing the adjustment of the height of the shell 1.

[0038] In the process of adjusting the height and angle of the shell 1, most of the display frame is narrow frame except the bottom, so that in the process of adjusting the height and angle of the display, in order to avoid extruding the liquid crystal panel, force is applied to the bottom of the display to change its height and angle, which causes the angle and height to change simultaneously in the process of adjustment, so repeated adjustment is needed until the desired angle or height is reached. When the adjusting plate 22 is initially moved upward, the moving rod 18 moves to the connection between the guide groove 19 and the reset groove 20, thereby driving the positioning rod 11 away from the inner cavity of the positioning groove 10, thereby releasing the limiting of the mounting plate 3 by the positioning groove 10, so that the pitch angle of the shell 1 can be adjusted. At this time, the driven rod 23 moves to the connection between the vertical groove and the inclined groove, and the position of the driving plate 24 and the push plate 26 has not changed, that is, the height of the shell 1 is still limited and fixed by the clamping of the limiting block 12 and the limiting groove 13, so as to avoid the height of the shell 1 being changed in the process of adjusting the pitch angle of the shell 1. When adjusting the height of the shell 1, the adjusting plate 22 needs to be moved upward again, so that the driven rod 23 enters the inclined groove, thereby driving the push plate 26 to move to the middle of the inner cavity of the limiting groove 13, thereby reducing the length of the limiting block 12 extending into the inner cavity of the limiting groove 13, so that the limiting block 12 can only elastically limit the shell 1 at this time. When the driven rod 23 moves to the top of the inclined groove, the moving rod 18 moves to the connection between the reset groove 20 and the balance groove 21, so that the positioning rod 11 is re-clamped in the inner cavity of the positioning groove 10, thereby limiting and fixing the pitch angle of the shell 1, so as to avoid the change of the angle of the shell 1 in the process of adjusting the height of the shell 1.

[0039] Please refer to Figures 10-12The lower middle of the shell 1 is provided with a through slot 33 near one side of the mounting plate 3, the adjusting mechanism comprises a C-shaped block 34 which is vertically slidably connected to the inner cavity side wall of the through slot 33, the upper middle of the C-shaped block 34 is fixedly connected with an adjusting block 35, the two sides of the end of the adjusting block 35 away from the C-shaped block 34 are slidably connected with symmetric adjusting rods 37, the side of the adjusting rod 37 close to the adjusting plate 22 is elastically connected with the inner cavity upper side wall of the adjusting block 35 through a spring, the lower part of the inner cavity of the adjusting block 35 is vertically slidably connected with a pull rod 36, the upper end of the pull rod 36 is elastically connected with the inner cavity top of the adjusting block 35 through a spring, the upper end of the pull rod 36 is fixedly connected with symmetric traction ropes 38, the number and position of the traction ropes 38 correspond to the adjusting rods 37, the end of the traction rope 38 away from the pull rod 36 is connected with the middle of the end of the adjusting rod 37 close to the adjusting plate 22, the inner cavity of the adjusting block 35 is provided with a rope groove for cooperating with the traction rope 38, the inner cavity side wall of the through slot 33 is provided with symmetric vertical grooves 14, the end of the adjusting rod 37 away from the adjusting block 35 is slidably connected with the vertical groove 14, the inner cavity upper part of the vertical groove 14 is provided with a groove 15, the groove 15 is farther away from the central position of the adjusting block 35 than the vertical groove 14, the inner cavity top of the groove 15 is provided with a clamping groove 32, the clamping groove 32 is farther away from the central position of the adjusting block 35 than the groove 15, that is, when the pitch angle of the shell 1 needs to be adjusted, the C-shaped block 34 is pushed up at this time, thereby driving the adjusting block 35 and the adjusting plate 22 to move upward synchronously, when the adjusting rod 37 moves to the position where the inner cavity bottom of the groove 15 is located, the adjusting rod 37 will be popped out from the inner cavity of the adjusting block 35 at this time, thereby extending into the inner cavity of the groove 15, thereby limiting and fixing the height of the C-shaped block 34 after moving upward through the cooperation of the adjusting rod 37 and the groove 15, when the adjusting rod 37 moves to the inner cavity of the groove 15, the moving rod 18 moves to the connection between the guide groove 19 and the reset groove 20 at this time, and the driven rod 23 moves to the connection between the inclined groove and the vertical groove, that is, the angle of the shell 1 can be adjusted at this time and the height is not affected, when the C-shaped block 34 moves upward again, that is, when the adjusting rod 37 moves to the inner cavity of the clamping groove 32, the moving rod 18 moves to the connection between the reset groove 20 and the balance groove 21 at this time, so that the positioning rod 11 returns to the inner cavity of the positioning groove 10, and the driven rod 23 moves to the top end of the inclined groove, thereby the height of the shell 1 can be adjusted and the angle is not affected, after the height and angle are adjusted, the pull rod 36 is pulled down to drive the adjusting rod 37 to retract into the inner cavity of the adjusting block 35 through the traction rope 38, so that the adjusting rod 37 is away from the groove 15 and the clamping groove 32, thereby the moving rod 18 and the driven rod 23 return to the initial position, the positioning rod 11 and the limiting block 12 are clamped and fixed in the positioning groove 10 and the limiting groove 13 respectively, thereby the adjusted shell 1 is stably limited.

[0040] Please refer to Figure 8The utility model relates to a backlight unit module, including liquid crystal panel 27, liquid crystal panel 27 is connected with the inner chamber of shell 1 away from the side fixed connection of sliding groove 5, liquid crystal panel 27 is close to the side of mounting panel 3 and is sequentially provided with first optical mask 28, light guide plate 29, lamp tube emission plate 30 and second optical mask 31, and the side wall of first optical mask 28, light guide plate 29, lamp tube emission plate 30 and second optical mask 31 are all connected with the inner chamber side wall of shell 1 fixedly, and the backlight unit of the display that is composed of first optical mask 28, light guide plate 29, lamp tube emission plate 30 and second optical mask 31 each other stack lays is the commonly used technical means in prior art.

Claims

1. A liquid crystal display device, comprising a housing and a base, characterized in that, A symmetrical fixing plate is fixedly connected to the upper end of the base near the housing. A fixing rod is fixedly connected to the end of the symmetrical fixing plates away from the base. A sliding groove is formed on the side of the housing near the fixing plate. A mounting plate is vertically slidably connected to the inner cavity of the sliding groove. The side of the mounting plate away from the sliding groove is rotatably connected to the outer wall of the fixing rod. An adjustment mechanism for adjusting the vertical height and pitch angle of the housing is provided at the middle of the lower end of the housing. A limiting mechanism for fixing the height and angle of the housing is provided on the side of the inner cavity of the housing near the sliding groove. When the adjustment mechanism moves vertically upward, the limiting mechanism moves horizontally away from the position of the fixing rod. A symmetrical limiting block is slidably connected to the side of the mounting plate away from the connecting block. A limiting groove is formed on the inner wall of the sliding groove. The limiting mechanism includes an adjustment plate. The adjusting plate is vertically slidably connected to the middle of the inner cavity of the housing. A driven block is fixedly connected to the adjusting plate near the positioning rod. Driven plates are horizontally slidably connected to the middle of the inner cavity of the housing on both sides of the driven block. The middle of the driven plate on the side away from the adjusting plate is fixedly connected to the positioning rod. Symmetrical moving rods are slidably connected to the upper end of the driven block on the side away from the positioning rod. A guide groove is formed on the side of the driven plate near the driven block. A reset groove is formed at the end of the guide groove near the positioning rod. A balance groove is formed at the end of the reset groove away from the guide groove. Inclined blocks are fixedly connected to the inner cavity of the reset groove near the balance groove and the inner cavity of the balance groove near the guide groove. The guide groove, reset groove, and balance groove all slide in cooperation with the outer wall of the moving rods. Drive plates are attached to both sides of the end of the adjusting plate away from the driven block. The drive plates are horizontally slidably connected to the middle of the inner cavity of the housing. A push plate is fixedly connected to the side of the drive plate near the mounting plate. Two sets of parallel drive grooves are provided on one side of the section plate. Driven rods are fixedly connected to both sides of the drive plate near the drive grooves. The outer wall of the driven rod at the end away from the adjusting plate slides into the drive groove. The drive groove is composed of a vertical groove and an inclined groove. The vertical height between the two ends of the inclined groove is equal to the vertical height of the vertical groove. The vertical height of the vertical groove is equal to the vertical height between the two ends of the moving rod. The center position of the push plate and the center position of the limiting groove are located in the same vertical plane. The vertical height of the push plate is the same as the vertical height of the inner cavity of the sliding groove. A through groove is provided on the lower middle part of the housing near the mounting plate. The adjusting mechanism includes a C-shaped block, which is vertically slidably connected to the inner wall of the through groove. An adjusting block is fixedly connected to the upper middle part of the C-shaped block. The upper middle part of the adjusting block is fixedly connected to the lower end of the adjusting plate. Symmetrical adjusting rods are slidably connected to both sides of the adjusting block at the end away from the C-shaped block. A pull rod is vertically slidably connected to the lower part of the inner cavity of the adjusting block.The upper end of the pull rod is fixedly connected to symmetrical traction ropes. The number and position of the traction ropes correspond to the adjusting rod. The end of the traction rope furthest from the pull rod is connected to the middle of the end of the adjusting rod closest to the adjusting plate. The inner cavity of the adjusting block has a rope groove that slides with the traction rope.

2. The liquid crystal display device according to claim 1, characterized in that, A connecting block is fixedly connected to the middle of one end of the mounting plate near the fixing rod. The end of the connecting block away from the mounting plate slides against the outer wall of the fixing rod. Slider blocks are fixedly connected to the middle of both sides of the connecting block. An arc-shaped groove is opened on the outer wall of the fixing rod to slide with the slider. A positioning rod is slidably connected to the middle of the connecting block. Several positioning grooves are opened on the middle of the outer wall of the fixing rod near the mounting plate.

3. A liquid crystal display device according to claim 2, characterized in that, The inner wall of the through groove is provided with symmetrical vertical grooves. The end of the adjusting rod away from the adjusting block is slidably engaged with the vertical groove. The upper part of the inner cavity of the vertical groove is provided with a groove. The groove is further away from the center of the adjusting block than the vertical groove. The top of the inner cavity of the groove is provided with a locking groove. The locking groove is further away from the center of the adjusting block than the groove.

4. A backlight unit module, characterized in that, The liquid crystal display device as described in claim 1 further includes a liquid crystal panel, which is fixedly connected to the inner cavity of the housing on the side away from the slide groove. A first optical module, a light guide plate, a lamp emitting plate, and a second optical module are sequentially arranged on the side of the liquid crystal panel near the mounting plate. The sidewalls of the first optical module, the light guide plate, the lamp emitting plate, and the second optical module are all fixedly connected to the inner cavity sidewall of the housing.

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