CN213399131U

CN213399131U - Lateral-entering LED backlight source liquid crystal display dimming device

Info

Publication number: CN213399131U
Application number: CN202022432585.8U
Authority: CN
Inventors: 刘创业
Original assignee: Shenzhen Kerui Optoelectronics Technology Co ltd
Current assignee: Shenzhen Kerui Optoelectronics Technology Co ltd
Priority date: 2020-10-28
Filing date: 2020-10-28
Publication date: 2021-06-08
Anticipated expiration: 2030-10-28

Abstract

The utility model discloses a formula LED backlight source LCD device of adjusting luminance inclines, concretely relates to mechanical engineering field, including the reflector plate, the equal fixedly connected with LED lamp plate of surface on the side about the reflector plate, just the inboard fixedly connected with LED backlight of LED lamp plate, LED lamp plate outside fixedly connected with adjust knob mechanism, fixed surface is connected with the diffusion piece on the LED lamp plate, just diffusion piece lower surface fixedly connected with pipe board, diffusion piece upper surface four corners department fixedly connected with angle adjustment mechanism, just fixed surface is connected with the polarizing plate No. one on the angle adjustment mechanism, fixed surface is connected with the circuit board on the polarizing plate, the circuit board top is equipped with color filter. The utility model discloses an angle adjustment mechanism makes the angle that the display screen received different, and the picture display just has difference, and the regulation that the adjust knob mechanism carried out different rank scales in addition realizes that light gets strong and weak change.

Description

Lateral-entering LED backlight source liquid crystal display dimming device

Technical Field

The utility model relates to a mechanical engineering technical field, more specifically say, the utility model relates to a formula LED backlight source LCD device of adjusting luminance inclines.

Background

The LED backlight source liquid crystal display is based on the principle of the liquid crystal display, the liquid crystal display presents different colors by the light of the liquid crystal molecules refracting the backlight source, the liquid crystal molecules cannot emit light by themselves, and the LED backlight source liquid crystal display is mainly realized by the irradiation of the backlight source. Most of the backlights of liquid crystal displays are CCFLs, that is, cold cathode ray tubes, the principle of which is similar to that of fluorescent tubes, and the LED backlight is a new backlight for replacing CCFLs.

However, in practical use, the dead plate may not be changed according to individual needs, or the cost consumed by some adjustment may be increased, which is not favorable for mass production, and the structure is not simple enough.

SUMMERY OF THE UTILITY MODEL

In order to overcome the above-mentioned defects in the prior art, the embodiments of the present invention provide a side-in LED backlight source lcd dimming device to solve the problems proposed in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a lateral-entering LED backlight source LCD light modulation device comprises a reflector plate, wherein the upper surfaces of the left side and the right side of the reflector plate are fixedly connected with an LED lamp plate, the inner side of the LED lamp plate is fixedly connected with an LED backlight source, the outer side of the LED lamp plate is fixedly connected with an adjusting knob mechanism, the upper surface of the LED lamp plate is fixedly connected with a diffusion sheet, the lower surface of the diffusion sheet is fixedly connected with a guide pipe plate, the four corners of the upper surface of the diffusion sheet are fixedly connected with an angle adjusting mechanism, the upper surface of the angle adjusting mechanism is fixedly connected with a first polarizing plate, the upper surface of the polarizing plate is fixedly connected with a circuit board, a color filter is arranged above the circuit board, a liquid crystal molecule is formed at a gap between the color filter and the circuit board, the upper surface of the color filter is fixedly connected, and the upper surface of the buffer mechanism is fixedly connected with a cover plate.

Further, adjust knob mechanism includes the mount, the inside pivot that alternates of mount, pivot right-hand member fixedly connected with knob dish, mount bottom fixedly connected with base, the pivot left end is rotated and is connected with the connecting pipe, connecting pipe surface fixed connection has the fixed block, the connecting pipe left end alternates inside the LED lamp plate.

Further, knob dish right side fixedly connected with dwang, the inside threaded connection of hypomere has the fixed screw on the fixed block, just fixed screw left end threaded connection is on the LED lamp plate.

Further, angle adjustment mechanism is including fixed rotary column, fixed rotary column upper surface fixed connection is in polarizing plate lower surface No. one, the inside thread groove of having seted up of fixed rotary column, thread groove surface threaded connection has the threaded rod, the threaded rod lower extreme rotates and is connected with the bearing, just bearing surface fixed connection has the seat dish.

Furthermore, the outer surface of the threaded rod is fixedly connected with a guide block, the side edge of the guide block is fixedly connected with a guide rod, and the lower surface of the seat disc is fixedly connected to the upper surface of the diffusion sheet.

Further, buffer gear includes the briquetting, inside spacing groove, the slider groove of having seted up of briquetting, just the inside upper end fixedly connected with little spring in the slider groove, the inside sliding connection of slider groove has the slide bar, slide bar lower extreme fixedly connected with cushion.

Furthermore, the cushion upper surface is equipped with big spring, just inside the spacing inslot was worn to locate by big spring upper end, No. two polarizing plate upper surfaces of cushion lower fixed surface connection, briquetting upper surface fixed connection is in the apron lower surface.

The utility model discloses a technological effect and advantage:

1. through the setting of adjust knob mechanism, compare with prior art by the inside pivot that alternates of mount for pivot right-hand member fixedly connected with knob dish, because mount bottom fixedly connected with base for the pivot left end rotates and is connected with the connecting pipe, again because of the cross-under of connecting pipe outer fixed surface connecting block connecting pipe left end in the LED lamp plate inside, make equipment possess adjustable luminosity power.

2. Through the setting of angle adjustment mechanism, compare with prior art because fixed rotary column, through fixed special post upper surface fixed connection in polarizing plate lower surface No. one for fixed rotary column is inside to be seted up thread groove threaded connection in threaded rod one end, and threaded rod lower extreme rotates moreover and is connected with the bearing, and bearing surface fixed connection has a seat dish, makes the screw rod bottom realize the original place and rotates, and in addition buffer gear cooperation is used to make whole coordination function, and preparation low cost, simple structure.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic view of the structure of the adjusting knob mechanism of the present invention.

Fig. 3 is a schematic view of the structure of the adjusting knob mechanism of the present invention.

Fig. 4 is a schematic structural view of the buffering mechanism of the present invention.

The reference signs are: 1. a reflective sheet; 2. a light guide plate; 3. an LED lamp panel; 4. an LED backlight; 5. an adjustment knob mechanism; 6. a diffusion sheet; 7. an angle adjusting mechanism; 8. a first polarizing plate; 9. a circuit board; 10. liquid crystal molecules; 11. a color filter; 12. a second polarizing plate; 13. a buffer mechanism; 14. a cover plate; 15. a fixed mount; 16. a knob disc; 17. rotating the rod; 18. a base; 19. a rotating shaft; 20. a fixed block; 21. fixing screws; 22. a connecting pipe; 23. fixing the rotary column; 24. a thread groove; 25. a threaded rod; 26. a guide bar; 27. a bearing; 28. a seat pan; 29. a guide block; 30. briquetting; 31. cushion blocks; 32. a limiting groove; 33. a slider slot; 34. a large spring; 35. a slide bar; 36. a small spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in the attached figures 1-4, the side-in type LED backlight source LCD light modulation device comprises a reflector plate 1, LED lamp plates 3 are fixedly connected to the upper surfaces of the left and right sides of the reflector plate 1, an LED backlight source 4 is fixedly connected to the inner side of the LED lamp plate 3, an adjusting knob mechanism 5 is fixedly connected to the outer side of the LED lamp plate 3, a diffusion sheet 6 is fixedly connected to the upper surface of the LED lamp plate 3, a guide tube plate 2 is fixedly connected to the lower surface of the diffusion sheet 6, an angle adjusting mechanism 7 is fixedly connected to the four corners of the upper surface of the diffusion sheet 6, a first polarizing plate 8 is fixedly connected to the upper surface of the angle adjusting mechanism 7, a circuit board 9 is fixedly connected to the upper surface of the polarizing plate 8, a color filter 11 is arranged above the circuit board 9, a liquid crystal molecule 10 is formed by a gap between the color filter 11 and the circuit board 9, a second polarizing, and a cover plate 14 is fixedly connected to the upper surface of the buffer mechanism 13.

In a preferred embodiment, the adjusting knob mechanism 5 includes a fixing frame 15, a rotating shaft 19 is inserted into the fixing frame 15, a knob disc 16 is fixedly connected to the right end of the rotating shaft 19, a base 18 is fixedly connected to the bottom of the fixing frame 15, a connecting pipe 22 is rotatably connected to the left end of the rotating shaft 19, a fixed block 20 is fixedly connected to the outer surface of the connecting pipe 22, and the left end of the connecting pipe 22 is inserted into the LED lamp panel 3, so that the knob disc can be rotated in a suspended state through the fixing frame 15, and the light transmitted by the display screen can be changed and regulated due to the fact that the backlight light can be changed in intensity through the setting of the adjusting knob mechanism.

In a preferred embodiment, the right side of the knob plate 16 is fixedly connected with a rotating rod 17, the inner part of the upper and lower sections of the fixing block 20 is connected with a fixing screw 21 in a threaded manner, and the left end of the fixing screw 21 is connected to the LED lamp panel 3 in a threaded manner, so that the adjustment knob mechanism 5 can be conveniently linked with other places, and the adjustment mechanism 5 can be easily operated in the operation process.

In a preferred embodiment, the angle adjusting mechanism 7 comprises a fixed rotary column 23, the upper surface of the fixed rotary column 23 is fixedly connected to the lower surface of the first polarizing plate 8, a thread groove 24 is formed in the fixed rotary column 23, a threaded rod 25 is connected to the surface of the thread groove 24 in a threaded manner, a bearing 27 is rotatably connected to the lower end of the threaded rod 25, and a seat plate 28 is fixedly connected to the outer surface of the bearing 27, so that the angle can be changed through four angle adjusting mechanisms, two angles are matched, and the angle adjusting mechanisms can be lifted and lowered.

In a preferred embodiment, the outer surface of the threaded rod 25 is fixedly connected with a guide block 29, the side edge of the guide block 29 is fixedly connected with a guide rod 26, and the lower surface of the seat plate 28 is fixedly connected with the upper surface of the diffusion plate 6, so that the guide rod and the guide block are matched to use to enable the angle to follow different adjusting directions to move or move in the presence of fire.

In a preferred embodiment, the buffer mechanism 13 includes a pressing block 30, a limiting groove 32 and a slider groove 33 are formed inside the pressing block 30, a small spring 36 is fixedly connected to the upper end inside the slider groove 33, a sliding rod 35 is slidably connected inside the slider groove 33, and a cushion block 31 is fixedly connected to the lower end of the sliding rod 35, so that when the buffer mechanism adjusts the angle of the liquid crystal display module, the phenomenon of abutting against the cover plate can occur, and the cover plate can not be squeezed by strong force to cause the damage phenomenon in the practical buffer mechanism.

In a preferred embodiment, the upper surface of the cushion block 31 is provided with a large spring 34, the upper end of the large spring 34 penetrates through the limiting groove 32, the lower surface of the cushion block 31 is fixedly connected with the upper surface of the second polarizing plate 12, and the upper surface of the pressing block 30 is fixedly connected with the lower surface of the cover plate 14, so that the large spring 34 can ensure the distance between the cushion block and the pressing block besides the pressure reducing function, and the proper distance ensures the coordination between the plates.

The utility model discloses the theory of operation: through the setting of adjust knob mechanism, compare with prior art by the inside pivot that alternates of mount for pivot right-hand member fixedly connected with knob dish, because mount bottom fixedly connected with base for the pivot left end rotates and is connected with the connecting pipe, again because of the cross-under of connecting pipe outer fixed surface connecting block connecting pipe left end in the LED lamp plate inside, make equipment possess adjustable luminosity power. Through the setting of angle adjustment mechanism, compare with prior art because fixed rotary column, through fixed special post upper surface fixed connection in polarizing plate lower surface No. one for fixed rotary column is inside to be seted up thread groove threaded connection in threaded rod one end, and threaded rod lower extreme rotates moreover and is connected with the bearing, and bearing surface fixed connection has a seat dish, makes the screw rod bottom realize the original place and rotates, and in addition buffer gear cooperation is used to make whole coordination function, and preparation low cost, simple structure.

The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;

secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are referred to, and other structures can refer to the common design, and under the condition of no conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

and finally: the above description is only for the preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A lateral-entering LED backlight source liquid crystal display dimming device comprises a reflector plate (1), and is characterized in that: the LED backlight module comprises a reflector plate (1), LED lamp plates (3) fixedly connected to the upper surfaces of the left side and the right side of the reflector plate (1), LED backlight sources (4) fixedly connected to the inner sides of the LED lamp plates (3), adjusting knob mechanisms (5) fixedly connected to the outer sides of the LED lamp plates (3), diffusion sheets (6) fixedly connected to the upper surfaces of the LED lamp plates (3), duct plates (2) fixedly connected to the lower surfaces of the diffusion sheets (6), angle adjusting mechanisms (7) fixedly connected to four corners of the upper surface of the diffusion sheets (6), a polarizing plate (8) fixedly connected to the upper surface of each angle adjusting mechanism (7), a circuit board (9) fixedly connected to the upper surface of each polarizing plate (8), color filters (11) arranged above the circuit board (9), and liquid crystal molecules (10) formed by the seams between the color filters (11) and the circuit, the color filter is characterized in that a second polarizing plate (12) is fixedly connected to the upper surface of the color filter (11), a buffer mechanism (13) is fixedly connected to four corners of the upper surface of the second polarizing plate (12), and a cover plate (14) is fixedly connected to the upper surface of the buffer mechanism (13).

2. The dimming device of claim 1, wherein: adjusting knob mechanism (5) are including mount (15), mount (15) inside interlude is equipped with pivot (19), pivot (19) right-hand member fixedly connected with knob dish (16), mount (15) bottom fixedly connected with base (18), pivot (19) left end rotates and is connected with connecting pipe (22), connecting pipe (22) outer fixed surface is connected with fixed block (20), connecting pipe (22) left end interlude is inside LED lamp plate (3).

3. The dimming device of claim 2, wherein: knob dish (16) right side fixedly connected with dwang (17), section inside threaded connection has fixed screw (21) about fixed block (20), just fixed screw (21) left end threaded connection is on LED lamp plate (3).

4. The dimming device of claim 1, wherein: angle adjustment mechanism (7) are including fixed rotary column (23), fixed surface connects in polarizing plate (8) lower surface on fixed rotary column (23), thread groove (24) have been seted up to fixed rotary column (23) inside, thread groove (24) surface threaded connection has threaded rod (25), threaded rod (25) lower extreme rotates and is connected with bearing (27), just bearing (27) surface fixed connection has seat dish (28).

5. The dimming device of claim 4, wherein: the outer surface of the threaded rod (25) is fixedly connected with a guide block (29), the side edge of the guide block (29) is fixedly connected with a guide rod (26), and the lower surface of the seat disk (28) is fixedly connected to the upper surface of the diffusion sheet (6).

6. The dimming device of claim 1, wherein: buffer gear (13) are including briquetting (30), spacing groove (32), slider groove (33) have been seted up to briquetting (30) inside, just slider groove (33) inside upper end fixedly connected with little spring (36), slider groove (33) inside sliding connection has slide bar (35), slide bar (35) lower extreme fixedly connected with cushion (31).

7. The dimming device of claim 6, wherein: cushion (31) upper surface is equipped with big spring (34), just inside spacing groove (32) are worn to locate by big spring (34) upper end, No. two polarizing plate (12) upper surfaces of cushion (31) lower fixed surface connection, briquetting (30) upper surface fixed connection is in apron (14) lower surface.