CN216388617U

CN216388617U - Brightness adjusting device for LED large-screen display screen

Info

Publication number: CN216388617U
Application number: CN202122238261.5U
Authority: CN
Inventors: 吴科俊
Original assignee: Lanzhou Tongcheng Audio Visual Network Technology Co ltd
Current assignee: Lanzhou Tongcheng Audio Visual Network Technology Co ltd
Priority date: 2021-09-16
Filing date: 2021-09-16
Publication date: 2022-04-26
Anticipated expiration: 2031-09-16

Abstract

The utility model provides a brightness adjusting device of an LED large-screen display screen, which relates to the technical field of display screens and comprises a box body, wherein supporting plates are fixedly connected between the inner surface walls of two sides of the box body, two supporting rods are fixedly connected at the top part of each supporting plate close to one side edge, and an outer cylinder is fixedly arranged between the top ends of the two supporting rods. According to the utility model, the light source is started to irradiate light into the laser mirror, the condenser lens is used for transmitting light to the lens group, then the light is transmitted through the lens group to be more concentrated, then the light is irradiated onto the reflector to be reflected, so that the light is irradiated onto the driving plate through the lens, then impurity light in the light is absorbed through the light absorption assembly, and finally the light is directly irradiated onto the large screen through the projector, when the light on the large screen is too strong, the brightness of the device is adjusted by closing part of the light source in the large screen, and further the use efficiency of the device is improved.

Description

Brightness adjusting device for LED large-screen display screen

Technical Field

The utility model relates to the technical field of display screens, in particular to a brightness adjusting device for an LED large-screen display screen.

Background

A display (screen) is an I/O device belonging to a computer, i.e., an input/output device. The electronic document display tool is a display tool which displays a certain electronic document on a screen through a specific transmission device and reflects the electronic document to human eyes. It can be divided into CRT, LCD and other types, and the display is computer screen. The display receives signals from the computer and forms images that function as a television receiver. Some computer screens use liquid crystal displays. Computer screens are also known as visual displays, and generally, liquid crystal displays are composed of the following parts: glass substrate: inside is a liquid crystal and a grid-like printed circuit. A sequential circuit: for generating the timing and voltages necessary to control the deflection of the liquid crystal molecules. Lamp tube: a white light source is produced. Backlight: the light generated by the lamp tube is reflected to the liquid crystal screen. The control panel plays a role in signal conversion. Signals of various input formats are converted into signals of fixed output formats. For example, the input signal to the screen of 1024 × 768 can be 640 × 480, 800 × 600, 1024 × 768, etc., and finally converted into an output format of 1024 × 768, generating high voltage for lighting the lamp.

However, in the prior art, when the existing display screen is used, a fixed light source is generally used for illuminating the large screen, so that the large screen can only be used with fixed brightness when being used, and thus, part of people watching the large screen are uncomfortable, the use efficiency of the device is reduced, and the device is inconvenient to widely use.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art, and can effectively adjust the brightness of a large screen in use, so that the application range of the large screen is wider, and the use efficiency of the device is improved.

In order to achieve the purpose, the utility model adopts the following technical scheme: the utility model provides a LED large screen display screen brightness control device, the power distribution box comprises a box body, fixedly connected with backup pad between the table wall in the both sides of box, the top of backup pad is close to two bracing pieces of a side edge fixedly connected with, two fixed mounting has the urceolus between the top of bracing piece, one side surface of urceolus is provided with the condensing lens, the opposite side surface of urceolus is provided with the battery of lens, the first fixed block of table wall fixedly connected with in one side of box, a plurality of light sources are installed along the horizontal direction equidistance to one side surface of first fixed block.

Preferably, a reflector is fixedly welded at the edge of the top of the supporting plate close to the other side, and a large screen body is arranged on the outer surface of one side of the box body.

Preferably, the bottom surface of the interior of the box body is fixedly connected with a supporting column, and the top of the supporting column is fixedly connected with a projector.

Preferably, a projection lens is arranged in the projector, and connecting rods are fixedly welded on the opposite sides of the projector and the outer cylinder.

Preferably, a lantern ring is fixedly connected between one ends of the two connecting rods, and a lens is embedded in the lantern ring.

Preferably, one side of the inner surface wall of one side of the box body, which is close to the first fixed block, is fixedly connected with a second fixed block, the outer surface of one side of the second fixed block is fixedly provided with a driving plate, and one side of the inner surface wall of one side of the box body, which is far away from the second fixed block, is provided with a light absorption assembly.

Compared with the prior art, the utility model has the advantages and positive effects that,

1. according to the utility model, the light source is started to irradiate light into the laser mirror, the lens group is used for transmitting light through the condensing lens, then the light penetrates through the lens group to become more concentrated, then the light irradiates on the reflector to be reflected, so that the light irradiates on the driving plate through the lens, then impurity light in the light is absorbed through the light absorption assembly, finally the light directly irradiates on the large screen through the projector, and when the light on the large screen is too strong, the brightness of the device is adjusted by closing part of the light sources in the light, so that the use efficiency of the device is improved.

2. According to the utility model, the outer barrel is fixed through the supporting rod, the condenser lens and the lens group are further fixed, the reflector can be fixed, the projector can be fixed through the fixing of the supporting column, the projection lens is fixed accordingly, the device is more stable, the connecting rod can be fixed, the lantern ring is fixed, the lens is fixed, the device is more stable in use, the stability of the device is improved, and the working efficiency of the device is improved.

Drawings

FIG. 1 is a front perspective view of a brightness adjustment device for an LED large screen display screen according to the present invention;

FIG. 2 is a side perspective view of a brightness adjustment device for an LED large screen display screen according to the present invention;

fig. 3 is a top perspective view of a brightness adjustment device for an LED large screen display screen according to the present invention.

Illustration of the drawings:

1. a box body; 2. a support plate; 3. a first fixed block; 4. a light source; 5. a support bar; 6. an outer cylinder; 7. a condenser lens; 8. a lens group; 9. a light absorbing component; 10. a reflective mirror; 11. a large screen body; 12. a collar; 13. a mirror sheet; 14. a second fixed block; 15. a drive plate; 16. a support pillar; 17. a projector; 18. lens casting; 19. a connecting rod.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, the present invention will be further described with reference to the accompanying drawings and examples. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and thus the present invention is not limited to the specific embodiments of the present disclosure.

Embodiment 1, as shown in fig. 1 to 3, the present invention provides a brightness adjustment device for an LED large screen display, which includes a box 1, wherein a supporting plate 2 is fixedly connected between inner surface walls of two sides of the box 1, two supporting rods 5 are fixedly connected to a top portion of the supporting plate 2 near one side edge, an outer cylinder 6 is fixedly installed between top ends of the two supporting rods 5, a condenser 7 is disposed on an outer surface of one side of the outer cylinder 6, a lens group 8 is disposed on an outer surface of the other side of the outer cylinder 6, a first fixing block 3 is fixedly connected to an inner surface wall of one side of the box 1, and a plurality of light sources 4 are installed on an outer surface of one side of the first fixing block 3 at equal intervals along a horizontal direction. The top of the supporting plate 2 is fixedly welded with a reflective mirror 10 near the edge of the other side, and the outer surface of one side of the box body 1 is provided with a large screen body 11.

The effect that its whole embodiment 1 reaches does, when the device plays the large screen, start light source 4, make light source 4 shine in the condenser 7, make lens group 8 propagate light through condenser 7, and then light sees through the gathering more that lens group 8 can become, the light shines and reflects on reflector 10 thereupon, make light shine drive plate 15 through lens piece 13 on, then absorb the impurity light in the light through extinction subassembly 9, directly shine on large screen body 11 through projector 17 at last, when the light on the large screen is too strong, through closing partial light source 4 wherein, make device luminance adjust, and then improve the availability factor of device.

In embodiment 2, as shown in fig. 1 to 3, a supporting column 16 is fixedly connected to the inner bottom surface of the box body 1, and a projector 17 is fixedly connected to the top of the supporting column 16. A projection lens 18 is arranged in the projector 17, and a connecting rod 19 is fixedly welded on one side of the projector 17 opposite to the outer cylinder 6. A lantern ring 12 is fixedly connected between one ends of the two connecting rods 19, and a lens 13 is embedded in the lantern ring 12. The inner surface wall of one side of the box body 1 is fixedly connected with a second fixed block 14 at one side close to the first fixed block 3, a driving plate 15 is fixedly arranged on the outer surface of one side of the second fixed block 14, and a light absorption component 9 is arranged at one side of the inner surface wall of one side of the box body 1 far away from the second fixed block 14.

The effect that its whole embodiment 2 reaches does, through bracing piece 5, make urceolus 6 fix, and then make condensing lens 7 and battery of lens 8 fix, can make reflector 10 fix simultaneously, it is fixed through support column 16, can make projector 17 fix, make thereupon throw lens 18 and fix, make the device more stable, and then can make connecting rod 19 fix, lantern ring 12 fixes, make the lens fix, thereby make the device use more stable, the stability of device is improved, and the work efficiency of device is improved.

The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention in other forms, and any person skilled in the art may apply the above modifications or changes to the equivalent embodiments with equivalent changes by using the technical contents disclosed in the above description to other fields, but any simple modification, equivalent change and change made to the above embodiments according to the technical essence of the present invention still belong to the protection scope of the technical solution of the present invention.

Claims

1. The utility model provides a LED large screen display screen brightness control device, includes box (1), its characterized in that: fixedly connected with backup pad (2) between the table wall in the both sides of box (1), the top of backup pad (2) is close to two bracing pieces of a side edge fixedly connected with (5), two fixed mounting has urceolus (6) between the top of bracing piece (5), one side surface of urceolus (6) is provided with condensing lens (7), the opposite side surface of urceolus (6) is provided with battery of lens (8), the first fixed block of table wall fixedly connected with (3) in one side of box (1), a plurality of light sources (4) are installed along the horizontal direction equidistance to one side surface of first fixed block (3).

2. The device for adjusting the brightness of the LED large screen display screen according to claim 1, is characterized in that: the top of the supporting plate (2) is fixedly welded with a reflector (10) close to the edge of the other side, and the outer surface of one side of the box body (1) is provided with a large screen body (11).

3. The device for adjusting the brightness of the LED large screen display screen according to claim 1, is characterized in that: the inside bottom surface fixedly connected with support column (16) of box (1), the top fixedly connected with projector (17) of support column (16).

4. The device for adjusting the brightness of the LED large screen display screen according to claim 3, wherein: a projection lens (18) is arranged in the projector (17), and connecting rods (19) are fixedly welded on the opposite sides of the projector (17) and the outer cylinder (6).

5. The device for adjusting the brightness of the LED large screen display screen according to claim 4, wherein: a lantern ring (12) is fixedly connected between one ends of the two connecting rods (19), and a lens (13) is embedded in the lantern ring (12).

6. The device for adjusting the brightness of the LED large screen display screen according to claim 1, is characterized in that: the light absorption type solar energy water heater is characterized in that a second fixing block (14) is fixedly connected to one side, close to the first fixing block (3), of the inner surface wall of one side of the box body (1), a driving plate (15) is fixedly mounted on the outer surface of one side of the second fixing block (14), and a light absorption component (9) is arranged on one side, far away from the second fixing block (14), of the inner surface wall of one side of the box body (1).