Liquid crystal display device and backlight unit module thereof

Abstract

The liquid crystal display device comprises a shell and a base, symmetrical fixing plates are fixedly connected to the side, close to the shell, of the upper end of the base, a fixing rod is jointly and fixedly connected to the ends, away from the base, of the symmetrical fixing plates, a sliding groove is formed in the side, close to the fixing plates, of the shell, and the fixing rod is fixedly connected to the side, close to the fixing plates, of the shell. An inner cavity of the sliding groove is vertically and slidably connected with a mounting plate, the side, away from the sliding groove, of the mounting plate is rotationally connected with the outer wall of the fixing rod, and an adjusting mechanism used for adjusting the vertical height and the pitching angle of the shell is arranged in the middle of the lower end of the shell. A limiting mechanism used for fixing the height and angle of the shell is arranged on the side, close to the sliding groove, of the inner cavity of the shell. 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, the height of the shell is kept fixed when the pitching 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 invention relates to the technical field of liquid crystal display devices, in particular to a liquid crystal display device and a backlight unit module thereof. Background Art

[0002] A liquid crystal display is an active matrix liquid crystal display driven by a thin film transistor. It mainly uses electric current to stimulate liquid crystal molecules to generate points, lines, and surfaces that cooperate with the back light tube to form a picture. IPS, TFT, and SLCD are all subcategories of LCD. Its working principle is that under the action of an electric field, the arrangement direction of liquid crystal molecules changes, so that the transmittance of the external light source changes (modulation) to complete the electro-optical conversion, and then use the different excitations of the three primary color signals of R, G, and B to complete the color reproduction in the time domain and space domain through the three primary color filters of red, green, and blue. The dynamic driving method of the liquid crystal display is to cyclically apply selection pulses to the row electrodes, and at the same time add corresponding selection or non-selection drive pulses to all column electrodes, thereby realizing the display function of all pixels in a row.

[0003] For example, Chinese patent publication number: CN114857427B provides a dynamically driven liquid crystal display, including: a display body; a worm gear arranged in the middle of the back shell of the display body, the central axis of the worm gear is equipped with a shaft; and a connecting frame rotatably connected to the shaft; and an adjustment mechanism arranged at the side wall end of the connecting frame, which is used to reduce the rotation amplitude of the worm gear relative to the connecting frame in the wall mode.

[0004] In this solution, the pitch angle and height of the monitor are adjusted through an adjustment mechanism, but the worm and lead screw for adjusting the angle and height are arranged on the upper back of the monitor. This means that when adjusting, the person needs to stand to make the adjustment and can only determine whether the monitor is adjusted to the required position after sitting down. Since the position requirements of the monitor for standing and sitting are different, repeated standing adjustments may be required. Summary of the invention

[0005] The object of the present invention is to provide a liquid crystal display device to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions: A liquid crystal display device comprises a shell and a base, wherein a symmetrical fixing plate is fixedly connected to a side of the upper end of the base close to the shell, and a fixing rod is fixedly connected to one end of the fixing plate symmetrically away from the base, a sliding groove is provided on the side of the shell close to the fixing plate, a mounting plate is vertically slidably connected to the inner cavity of the sliding groove, and a 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 shell is provided in the middle part of the lower end of the shell, and a limiting mechanism for fixing the height and angle of the shell is provided on the side of the inner cavity of the shell close to the sliding groove, and when the adjustment mechanism moves vertically upward, the limiting mechanism moves horizontally away from the position of the fixing rod.

[0007] As a further solution of the present invention: a connecting block is fixedly connected to the middle of one end of the mounting plate close to the fixing rod, and the connecting block is slidably fitted with the outer wall of the fixing rod at one end away from the mounting plate, and sliding blocks are fixedly connected to the middle of both sides of the connecting block, and an arc groove that slidably cooperates with the sliding block is formed on the outer wall of the fixing rod, and a positioning rod is slidably connected to the middle of the connecting block, and a plurality of positioning grooves are formed on the middle of the outer wall of the fixing rod close to the mounting plate.

[0008] As a further solution of the present invention: a symmetrical limit block is slidably connected to the side of the mounting plate away from the connecting block, a limit slot is provided on the inner cavity side wall of the slide groove, the limit mechanism includes an adjustment plate, the adjustment plate is vertically slidably connected to the middle part of the inner cavity of the shell, the adjustment plate is fixedly connected to a driven block at a position close to the positioning rod, driven plates horizontally slidably connected to the middle part of the inner cavity of the shell are arranged on both sides of the driven block, the middle part of the side of the driven plate away from the adjustment plate is fixedly connected to the positioning rod, and the upper end of the driven block is slidably connected to a side away from the positioning rod with a symmetrical moving rod.

[0009] As a further solution of the present invention: a guide groove is provided on the side of the driven plate close to the driven block, a reset groove is provided on the end of the guide groove close to the positioning rod, a balancing groove is provided on the end of the reset groove away from the guide groove, and an inclined block is fixedly connected to the side of the reset groove inner cavity close to the balancing groove and the side of the balancing groove inner cavity close to the guide groove, and the guide groove, the reset groove and the balancing groove are all slidably matched with the outer wall of the moving rod.

[0010] As a further solution of the present invention: driving plates are fitted on both sides of one end of the adjustment plate away from the driven block, the driving plate is horizontally slidably connected to the middle part of the inner cavity of the shell, a push plate is fixedly connected to the side of the driving plate close to the mounting plate, two groups of parallel driving grooves are opened on the side of the driving plate close to the adjustment plate, driven rods are fixedly connected to the positions close to the driving grooves on both sides of the driving plate, and the outer wall of the end of the driven rod away from the adjustment plate is slidably matched with the driving groove.

[0011] As a further solution of the present invention: the driving groove is composed of a vertical groove and an oblique groove, the vertical height between the two ends of the oblique 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 limit 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 slide groove.

[0012] As a further solution of the present invention: a through groove is opened in the middle part of the lower end of the shell near the side of the mounting plate, and the adjustment mechanism includes a C-shaped block, which is vertically slidably connected to the inner cavity side wall of the through groove, and an adjustment block is fixedly connected to the middle part of the upper end of the C-shaped block, and the middle part of the upper end of the adjustment block is fixedly connected to the lower end of the adjustment plate, and symmetrical adjustment rods are slidably connected on both sides of one end of the adjustment block away from the C-shaped block, and a pull rod is vertically slidably connected to the lower part of the inner cavity of the adjustment block.

[0013] As a further solution of the present invention: a symmetrical traction rope is fixedly connected to the upper end of the pull rod, the number and position of the traction rope correspond to the adjusting rod, the end of the traction rope away from the pull rod is connected to the middle part of the end of the adjusting rod close to the adjusting plate, and the inner cavity of the adjusting block is provided with a rope groove that slides with the traction rope.

[0014] As a further solution of the present invention: a symmetrical vertical groove is provided on the inner side wall of the through groove, the end of the adjusting rod away from the adjusting block is slidably matched with the vertical groove, a groove is provided on the upper part of the inner cavity of the vertical groove, and the groove is further away from the center position of the adjusting block than the vertical groove, and a card groove is provided on the top of the inner cavity of the groove, and the card groove is further away from the center position of the adjusting block than the groove.

[0015] A backlight unit module includes the above-mentioned liquid crystal display device and also includes a liquid crystal panel, wherein the liquid crystal panel is fixedly connected to the side of the inner cavity of the shell away from the slide groove, and the side of the liquid crystal panel close to the mounting plate is sequentially provided with a first optical module, a light guide plate, a lamp tube emitting plate and a second optical module, and the side walls of the first optical module, the light guide plate, the lamp tube emitting plate and the second optical module are all fixedly connected to the side walls of the inner cavity of the shell.

[0016] Compared with the prior art, the present invention has the following beneficial effects: When the C-block is pushed upward initially, the moving rod moves to the connection between the guide groove and the reset groove, thereby driving the positioning rod away from the inner cavity of the positioning groove, so that the pitch angle of the shell can be adjusted, and the driven rod moves to the connection between the vertical groove and the inclined groove at this time, thereby avoiding that the height of the shell is also subjected to force and changes during the process of adjusting the pitch angle of the shell. When adjusting the height of the shell, the C-block is pushed upward again, so that the driven rod enters the inclined groove, thereby driving the push plate to move to the middle of the inner cavity of the limit groove, and the moving rod moves to the connection between the reset groove and the balance groove, so that the positioning rod is re-engaged with the inner cavity of the positioning groove, and the pitch angle of the shell is limited and fixed, thereby avoiding that the angle of the shell changes when the height of the shell is adjusted. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0018] Figure 2 It is a structural schematic diagram of the slideway in the present invention.

[0019] Figure 3 It is a structural schematic diagram of the fixing rod in the present invention.

[0020] Figure 4 It is a structural schematic diagram of the driven block in the present invention.

[0021] Figure 5 It is a structural schematic diagram of the driven plate in the present invention.

[0022] Figure 6 It is a structural schematic diagram of the limiting mechanism in the present invention.

[0023] Figure 7 For the present invention Figure 6 Schematic diagram of the structure of area A.

[0024] Figure 8 For the present invention Figure 6 Schematic diagram of the structure of area B.

[0025] Fig. 9 It is a schematic diagram of the structure of the driving plate in the present invention.

[0026] Fig.10 It is a structural schematic diagram of the adjustment mechanism in the present invention.

[0027] Fig.11 It is a structural schematic diagram of the adjusting rod in the present invention.

[0028] Fig.12 It is a schematic diagram of the structure of the vertical groove in the present invention.

[0029] In the figure: 1, shell; 2, base; 3, mounting plate; 4, fixing plate; 5, slide groove; 6, connecting block; 7, slider; 8, arc groove; 9, fixing rod; 10, positioning groove; 11, positioning rod; 12, limit block; 13, limit groove; 14, vertical groove; 15, groove; 16, driven plate; 17, driven block; 18, moving rod; 19, guide groove; 20, reset groove; 21, balance groove; 22, adjustment plate; 23, driven rod; 24, driving plate; 25, driving groove; 26, push plate; 27, liquid crystal panel; 28, first optical module; 29, light guide plate; 30, lamp tube emitting plate; 31, second optical module; 32, slot; 33, through slot; 34, C-shaped block; 35, adjustment block; 36, pull rod; 37, adjustment rod; 38, traction rope; 39, oblique block. DETAILED DESCRIPTION

[0030] See also Figure 1-Figure 2 In an embodiment of the present invention, a liquid crystal display device includes a shell 1 and a base 2, wherein a symmetrical fixing plate 4 is fixedly connected to a side of the upper end of the base 2 close to the shell 1, and a fixing rod 9 is fixedly connected to one end of the symmetrical fixing plate 4 away from the base 2. A slide groove 5 is provided on the side of the shell 1 close to the fixing plate 4, and a mounting plate 3 is vertically slidably connected to the inner cavity of the slide groove 5. The side of the mounting plate 3 away from the slide groove 5 is rotatably connected to the outer wall of the fixing rod 9. An adjusting mechanism for adjusting the vertical height and pitch angle of the shell 1 is provided in the middle part of the lower end of the shell 1, and a limiting mechanism for fixing the height and angle of the shell 1 is provided on the side of the inner cavity of the shell 1 close to the slide groove 5. When the adjusting mechanism moves vertically upward, the limiting mechanism moves horizontally away from the position of the fixing rod 9.

[0031] See also Figure 3 The inner cavity side wall of the slide groove 5 is provided with a T-shaped groove, and both sides of the mounting plate 3 are fixedly connected with T-shaped blocks, and the T-shaped blocks are slidably connected in the T-shaped groove, so that the mounting plate 3 can only slide relative to the housing 1 in the inner cavity of the slide groove 5. The middle part of one end of the mounting plate 3 close to the fixing rod 9 is fixedly connected with a connecting block 6, and the end of the connecting block 6 away from the mounting plate 3 is slidably fitted with the outer wall of the fixing rod 9, and the middle parts of both sides of the connecting block 6 are fixedly connected with sliders 7, and the outer wall of the fixing rod 9 is provided with an arc groove 8 that slides with the slider 7, that is, the slider 7 is away from the mounting plate 3. One end of the mounting plate 3 is slidably connected to the inner cavity of the arc groove 8, so that when the slider 7 slides in the inner cavity of the arc groove 8, it will drive the connecting block 6 and the mounting plate 3 to rotate synchronously around the center position of the fixing rod 9, thereby changing the pitch angle of the mounting plate 3, and then achieving the purpose of changing the pitch angle of the shell 1. The middle part of the connecting block 6 is slidably connected with a positioning rod 11, and a plurality of positioning grooves 10 are opened on the side of the middle part of the outer wall of the fixing rod 9 close to the mounting plate 3, and the end of the positioning rod 11 away from the mounting plate 3 is snap-fitted with the positioning groove 10.

[0032] See also Figure 4, and 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 both 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 position of the fixed rod 9, so that the pitch angle of the mounting plate 3 and the shell 1 is fixed. 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 freely rotate around the center position of the fixed rod 9. During the rotation process, the flexible block The flexible block will continuously detach from the positioning groove 10 and re-enter the inner cavity of the positioning groove 10. The flexible block will bend when detaching from the positioning groove 10, and will reset due to elasticity when re-entering the positioning groove 10. Then, when the shell 1 is rotated to adjust the angle, the continuous bending and resetting of the flexible block will produce a sense of frustration, thereby facilitating judgment on whether the mounting plate 3 is rotated to the appropriate position, that is, when the flexible block is rotated to the inner cavity of other positioning grooves 10, the positioning rod 11 can be pushed to make the hard rod re-enter the inner cavity of the positioning groove 10, thereby fixing the rotation angle of the mounting plate 3 and the shell 1.

[0033] See also Figure 3 The side of the mounting plate 3 away from the connecting block 6 is slidably connected with a symmetrical limit block 12, and the inner cavity side wall of the slide groove 5 is provided with a limit groove 13 that is engaged with the limit block 12. The end of the limit block 12 away from the limit groove 13 is elastically connected to the inner cavity side wall of the mounting plate 3 through a spring. The limit mechanism includes an adjustment plate 22, which is vertically slidably connected to the middle part of the inner cavity of the shell 1. The position of the adjustment plate 22 close to the positioning rod 11 is fixedly connected with a driven block 17, and both sides of the driven block 17 are provided with a locking member that engages with the shell. A driven plate 16 is horizontally slidably connected to the middle part of the inner cavity of the body 1, and the middle part of the side of the driven plate 16 away from the adjusting plate 22 is fixedly connected to the positioning rod 11. A symmetrical moving rod 18 is slidably connected to the side of the upper end of the driven block 17 away from the positioning rod 11, and the moving rod 18 is elastically connected to the inner cavity side wall of the driven block 17 through a spring, that is, when the end of the moving rod 18 away from the driven block 17 is squeezed, the moving rod 18 will shrink to the inner cavity of the driven block 17, and pop out again to reset after being no longer squeezed.

[0034] See also Figure 5A guide groove 19 is provided on the side of the driven plate 16 close to the driven block 17, and the guide groove 19 is slidably matched with the outer wall of the moving rod 18. A reset groove 20 is provided on the end of the guide groove 19 close to the positioning rod 11, and a balancing groove 21 is provided on the end of the reset groove 20 away from the guide groove 19. The balancing groove 21 connects the reset groove 20 and the end of the guide groove 19 away from the positioning rod 11. The side of the inner cavity of the reset groove 20 close to the balancing groove 21 and the side of the inner cavity of the balancing groove 21 close to the guide groove 19 are fixedly connected with an inclined block 39. The inclined block 39 close to the position of the reset groove 20 has a side close to the balancing groove 21 closer to the position of the driven block 17, that is, when the moving rod 18 moves upward with the driven block 17, the moving rod 18 will relatively move from the guide groove 19 to the reset groove 20, and continue to relatively move to the connection between the reset groove 20 and the balancing groove 21. When the moving rod 18 and the inclined block 39 close to the position of the reset groove 20, the moving rod 18 will move along The inclined surface of the inclined block 39 moves and shrinks to the inner cavity of the driven block 17, and resets after passing over the inclined block 39. At the same time, it also prevents the moving rod 18 from returning to the inner cavity of the reset groove 20 from the connection between the balancing groove 21 and the reset groove 20, causing the positioning rod 11 to move in the horizontal direction. The inclined block 39 arranged at the connection between the balancing groove 21 and the guide groove 19 can prevent the moving rod 18 from entering the inner cavity of the balancing groove 21 from the connection between the guide groove 19 and the balancing groove 21, so that the moving rod 18 can only move in the guide groove 19, the reset groove 20 and the balancing groove 21 in sequence. When the driven block 17 drives the moving rod 18 to move upward initially, the moving rod 18 will move relatively in the inner cavity of the guide groove 19 to the connection between the guide groove 19 and the reset groove 20, thereby driving the moving rod 18 horizontally away from the position of the mounting plate 3, and then driving 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.

[0035] See also Figure 6-Figure 7 and Fig. 9, the adjusting plate 22 is fitted with a driving plate 24 on both sides of one end away from the driven block 17, and the driving plate 24 is horizontally slidably connected to the middle of the inner cavity of the shell 1, and the driving plate 24 is fixedly connected to the side of the mounting plate 3 with a push plate 26, and the driving plate 24 is provided with two sets of parallel driving grooves 25 on the side close to the adjusting plate 22, and the driving groove 25 is composed of a vertical groove and an oblique groove, wherein the vertical height between the two ends of the oblique 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 moving rod 18 and the guide groove 19 have the same size but different positions, and the two ends of the driving plate 24 are The positions near the driving groove 25 on the side are fixedly connected with the driven rod 23, and the outer wall of the end of the driven rod 23 away from the adjusting plate 22 is slidably matched with the driving groove 25, that is, the driven rod 23 will slide in the vertical groove and the inner cavity of the inclined groove as the adjusting plate 22 moves upward. When the driven rod 23 slides in the vertical groove, the position of the driving plate 24 remains stationary and fixed. When the driven rod 23 slides in the inner cavity of the inclined groove, the driving plate 24 will move horizontally in the direction of the mounting plate 3, thereby driving the push plate 26 to move in the direction of the mounting plate 3, and the center position of the push plate 26 is aligned with the center position of the limit groove 13. The push plate 26 is arranged 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 slide groove 5, and the horizontal width of the push plate 26 is smaller than the horizontal width of the inner cavity of the limit groove 13, that is, when the push plate 26 approaches the position of the mounting plate 3 along with the driving plate 24, the end of the push plate 26 away from the driving plate 24 will enter the middle of the inner cavity of the limit groove 13, thereby moving the limit block 12 located in the inner cavity of the limit groove 13 toward the inner cavity of the mounting plate 3, that is, by pushing the limit block 12 to move by the push plate 26, the end of the limit block 12 away from the mounting plate 3 can be close to the inner cavity of the limit groove 13 close to the side of the mounting plate 3, and the limit The upper and lower sides of the block 12 are provided with arc-shaped surfaces. At this time, the shell 1 will be elastically limited between the mounting plate 3 and the shell 1 through the cooperation of the limit block 12 and the limit groove 13. At this time, the height of the shell 1 can be adjusted by pushing the shell 1 vertically, that is, in the process of the shell 1 being pushed, the limit block 12 is squeezed by the edge of the limit groove 13, so that the limit block 12 shrinks toward the inner cavity of the mounting plate 3, and when the limit block 12 coincides with the position of other limit grooves 13, it pops out from the inner cavity of the mounting plate 3 again and is elastically connected to the inner cavity of the limit groove 13, thereby completing the adjustment of the height of the shell 1.

[0036] When adjusting the height and angle of the shell 1, most display frames are narrow frames except for the bottom. Therefore, in order to avoid squeezing the liquid crystal panel, force is applied to the bottom of the display to change its height and angle when adjusting the height and angle of the display. This causes the angle and height to change simultaneously during the adjustment process, so repeated adjustments are required until the required angle or height is reached. When the adjustment 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 positioning groove 10 from the limitation of the mounting plate 3, so that the pitch angle of the shell 1 can be adjusted, and at this time the driven rod 23 moves to the connection between the vertical groove and the oblique groove. At this time, the positions of the driving plate 24 and the push plate 26 have not changed, that is, the height of the shell 1 is still fixed. The clamping fit of the limit block 12 and the limit slot 13 limits and fixes the shell 1, thereby preventing the height of the shell 1 from being subjected to force and changing during the process of adjusting the pitch angle of the shell 1. When adjusting the height of the shell 1, it is necessary to push the adjustment plate 22 up again, so that the driven rod 23 enters the inclined slot, thereby driving the push plate 26 to move to the middle of the inner cavity of the limit slot 13, thereby reducing the length of the limit block 12 extending into the inner cavity of the limit slot 13, so that the limit block 12 can only elastically limit the shell 1 at this time, and when the driven rod 23 moves to the top of the inclined slot, the moving rod 18 moves to the connection between the reset slot 20 and the balance slot 21, so that the positioning rod 11 is re-clamped in the inner cavity of the positioning slot 10, and the pitch angle of the shell 1 is limited and fixed, thereby preventing the angle of the shell 1 from changing when the height of the shell 1 is adjusted.

[0037] See also Figure 10-12A through slot 33 is provided on one side of the lower middle part of the shell 1 near the mounting plate 3, and the adjustment mechanism includes a C-shaped block 34, which is vertically slidably connected to the inner cavity side wall of the through slot 33, and an adjustment block 35 is fixedly connected to the middle part of the upper end of the C-shaped block 34, and symmetrical adjustment rods 37 are slidably connected on both sides of one end of the adjustment block 35 away from the C-shaped block 34, and the side of the adjustment rod 37 close to the adjustment plate 22 is elastically connected to the inner cavity upper side wall of the adjustment block 35 through a spring, and a pull rod 36 is vertically slidably connected to the lower part of the inner cavity of the adjustment block 35, and the upper end of the pull rod 36 is elastically connected to the inner cavity top of the adjustment block 35 through a spring, and the upper end of the pull rod 36 is fixedly connected to a symmetrical traction rope 38, and the traction rope 38 The number and position correspond to the adjustment rod 37. The end of the traction rope 38 away from the pull rod 36 is connected to the middle of the end of the adjustment rod 37 close to the adjustment plate 22. The inner cavity of the adjustment block 35 is provided with a rope groove for matching the traction rope 38. The inner cavity side wall of the through groove 33 is provided with a symmetrical vertical groove 14. The end of the adjustment rod 37 away from the adjustment block 35 is slidably matched with the vertical groove 14. The upper part of the inner cavity of the vertical groove 14 is provided with a groove 15. The groove 15 is further away from the center position of the adjustment block 35 than the vertical groove 14. The top of the inner cavity of the groove 15 is provided with a card slot 32. The card slot 32 is further away from the center position of the adjustment block 35 than the groove 15. That is, when the pitch angle of the shell 1 needs to be adjusted At this time, the C-shaped block 34 is pushed upward, thereby driving the adjustment block 35 and the adjustment plate 22 to move upward synchronously. When the adjustment rod 37 moves to the bottom of the inner cavity of the groove 15, the adjustment rod 37 will pop out from the inner cavity of the adjustment block 35, thereby extending into the inner cavity of the groove 15, so that the height of the C-shaped block 34 after moving upward is limited and fixed by the cooperation of the adjustment rod 37 and the groove 15. When the adjustment 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, 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 without affecting the height. When the C-shaped block 34 moves upward again, that is, the adjustment rod 37 When moving to the inner cavity of the slot 32, the moving rod 18 moves to the connection between the reset slot 20 and the balance slot 21, so that the positioning rod 11 returns to the inner cavity of the positioning slot 10, and the driven rod 23 moves to the top of the inclined slot, so that the height of the shell 1 can be adjusted without affecting the angle. After adjusting the height and angle, the pull-down rod 36 drives 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 slot 32, thereby making the moving rod 18 and the driven rod 23 return to the initial position, and the positioning rod 11 and the limit block 12 are respectively clamped and fixed in the positioning slot 10 and the limit slot 13, so that the adjusted shell 1 is stably limited.

[0038] See also Figure 8A backlight unit module includes a liquid crystal panel 27, which is fixedly connected to the inner cavity of a shell 1 on a side away from a slide groove 5. A first optical module 28, a light guide plate 29, a lamp tube emitting plate 30, and a second optical module 31 are sequentially arranged on the side of the liquid crystal panel 27 close to a mounting plate 3. The side walls of the first optical module 28, the light guide plate 29, the lamp tube emitting plate 30, and the second optical module 31 are all fixedly connected to the inner cavity side walls of the shell 1. Stacking and laying the first optical module 28, the light guide plate 29, the lamp tube emitting plate 30, and the second optical module 31 to form a backlight unit for a display is a commonly used technical means in the 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 a side of the upper end of the base close to the shell, and a fixing rod is fixedly connected to one end of the fixing plate away from the base symmetrically. A sliding groove is provided on one side of the shell close to the fixing plate, and a mounting plate is vertically slidably connected to the inner cavity of the sliding groove, and a 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 shell is provided in the middle part of the lower end of the shell, and a limiting mechanism for fixing the height and angle of the shell is provided on the side of the inner cavity of the shell close to the sliding groove. When the adjusting mechanism moves vertically upward, the limiting mechanism moves horizontally away from the position of the fixing rod.

2. A 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 close to the fixing rod, and one end of the connecting block away from the mounting plate is slidably fitted with the outer wall of the fixing rod, and sliding blocks are fixedly connected to the middle of both sides of the connecting block, and the outer wall of the fixing rod is provided with an arc groove that slidably cooperates with the sliding block, and a positioning rod is slidably connected to the middle of the connecting block, and a plurality of positioning grooves are provided on one side of the middle of the outer wall of the fixing rod close to the mounting plate.

3. A liquid crystal display device according to claim 2, characterized in that: A symmetrical limit block is slidably connected to the side of the mounting plate away from the connecting block, a limit slot is provided on the inner cavity side wall of the slide slot, the limit mechanism comprises an adjusting plate, the adjusting plate is vertically slidably connected to the middle part of the inner cavity of the shell, the adjusting plate is fixedly connected to a driven block at a position close to the positioning rod, driven plates horizontally slidably connected to the middle part of the inner cavity of the shell are arranged on both sides of the driven block, the middle part of the side of the driven plate away from the adjusting plate is fixedly connected to the positioning rod, and a symmetrical moving rod is slidably connected to the side of the upper end of the driven block away from the positioning rod.

4. A liquid crystal display device according to claim 3, characterized in that: A guide groove is provided on the side of the driven plate close to the driven block, a reset groove is provided on the end of the guide groove close to the positioning rod, a balancing groove is provided on the end of the reset groove away from the guide groove, an inclined block is fixedly connected to the side of the reset groove inner cavity close to the balancing groove and the side of the balancing groove inner cavity close to the guide groove, and the guide groove, the reset groove and the balancing groove are all slidably matched with the outer wall of the moving rod.

5. A liquid crystal display device according to claim 3, characterized in that: A driving plate is fitted on both sides of one end of the adjusting plate away from the driven block, and the driving plate is horizontally slidably connected to the middle part of the inner cavity of the shell, and a push plate is fixedly connected to the side of the driving plate close to the mounting plate, and two groups of parallel driving grooves are provided on the side of the driving plate close to the adjusting plate, and driven rods are fixedly connected to the positions close to the driving grooves on both sides of the driving plate, and the outer wall of the driven rod at one end away from the adjusting plate is slidably matched with the driving groove.

6. A liquid crystal display device according to claim 5, characterized in that: The driving groove is composed of a vertical groove and an oblique groove. The vertical height between the two ends of the oblique 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. The center position of the push plate and the center position of the limit 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 slide groove.

7. A liquid crystal display device according to claim 3, characterized in that: A through slot is provided on one side of the middle part of the lower end of the shell body close to the mounting plate, and the adjustment mechanism includes a C-shaped block, which is vertically slidably connected to the inner cavity side wall of the through slot, and an adjustment block is fixedly connected to the middle part of the upper end of the C-shaped block, and the middle part of the upper end of the adjustment block is fixedly connected to the lower end of the adjustment plate, and symmetrical adjustment rods are slidably connected to both sides of one end of the adjustment block away from the C-shaped block, and a pull rod is vertically slidably connected to the lower part of the inner cavity of the adjustment block.

8. A liquid crystal display device according to claim 7, characterized in that: The upper end of the pull rod is fixedly connected with a symmetrical traction rope, the number and position of the traction rope correspond to the adjustment rod, the end of the traction rope away from the pull rod is connected to the middle part of the end of the adjustment rod close to the adjustment plate, and the inner cavity of the adjustment block is provided with a rope groove that slides with the traction rope.

9. A liquid crystal display device according to claim 8, characterized in that: A symmetrical vertical groove is provided on the inner cavity side wall of the through groove, and one end of the adjusting rod away from the adjusting block is slidably matched with the vertical groove. A groove is provided on the upper part of the inner cavity of the vertical groove, and the groove is further away from the center position of the adjusting block than the vertical groove. A clamping groove is provided on the inner cavity top of the groove, and the clamping groove is further away from the center position of the adjusting block than the groove.

10. A backlight unit module, characterized in that: It includes a liquid crystal display device as described in claim 1, and also includes a liquid crystal panel, which is fixedly connected to the side of the inner cavity of the shell away from the slide groove, and the side of the liquid crystal panel close to the mounting plate is sequentially provided with a first optical module, a light guide plate, a lamp tube emitting plate and a second optical module, and the side walls of the first optical module, the light guide plate, the lamp tube emitting plate and the second optical module are all fixedly connected to the side walls of the inner cavity of the shell.

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