CN111272396A

CN111272396A - LED display screen brightness auxiliary detection device with arbitrary angle contrast detection

Info

Publication number: CN111272396A
Application number: CN202010228777.9A
Authority: CN
Inventors: 贾国威; 黄宇豪; 张奥
Original assignee: Changsha Liuteng Technology Co Ltd
Current assignee: Changsha Liuteng Technology Co Ltd
Priority date: 2020-03-27
Filing date: 2020-03-27
Publication date: 2020-06-12

Abstract

The invention relates to the technical field of display screen detection, and discloses an LED display screen brightness auxiliary detection device with any angle contrast detection. Through arc sheetmetal and the contact of metal ball on the gear, detect the luminous angle and the luminance of display screen through the luminance detection appearance, intercommunication arc sheetmetal and metal ball overall circuit, drive arrangement drives the twice of the original turned angle of lower carousel antiport through the pivot, and the manual pivoted angle inaccuracy of current LED display screen luminance detection device has been solved to this structure to lead to detecting the inaccurate problem of data.

Description

LED display screen brightness auxiliary detection device with arbitrary angle contrast detection

Technical Field

The invention relates to the technical field of display screen detection, in particular to an LED display screen brightness auxiliary detection device with any angle contrast detection.

Background

The LED display screen is an electronic display screen formed by LED lattices, the display content forms of the screen, such as characters, animations, pictures and videos, are changed in time by the red and green lamp beads which are turned on and off, and the display control of the components is carried out through a modular structure. Mainly comprises a display module, a control system and a power supply system. The display module is a screen consisting of LED lamp dot arrays and emits light; the control system realizes the conversion of the content displayed on the screen under the on-off condition in the regulation area; the power supply system converts input voltage and current to meet the requirements of the display screen, and the LED screen can convert various forms of various information presentation modes, can be used indoors and outdoors, and has incomparable advantages compared with other display screens. The novel LED lamp is developed rapidly and widely applied to various fields by virtue of the characteristics of high brightness intensity, low work power consumption, low voltage requirement, small and exquisite equipment, convenience, long service life, impact resistance, stability and strong external interference resistance.

The relation between the brightness and the light-emitting angle of the LED display screen needs to be tested after the LED display screen is produced, the traditional testing method is that the LED display screen is fixed at a certain position and faces to a tester to be electrified to be in a working state, then the tester holds the brightness tester to move around the arc direction, the method can not judge the angle, in addition, angle scales are arranged between the fixed disc and the rotating base, but errors are easily caused by manual reading, thereby causing inaccurate measurement of the relationship between the brightness of the display screen and the light emitting angle, and the level between the brightness detector and different display screens needs to be frequently adjusted, in the aspect of contrast detection, the left and right adjustment angles of the display screen are preferably ensured to be constant, but the existing equipment is not accurate through manual adjustment, in order to solve the problem, an auxiliary LED display screen brightness detection device with any angle contrast detection is provided.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides the LED display screen brightness auxiliary detection device with any angle contrast detection, which has the advantages of accurate test data, convenient operation, automatic height adjustment and capability of carrying out any angle reverse contrast, and solves the problems of inaccurate brightness detection data, inconvenient operation, incapability of automatically adjusting the height and incapability of carrying out any angle reverse contrast of the conventional LED display screen.

(II) technical scheme

In order to achieve the purposes of accurate test data, convenient operation, automatic height adjustment and reverse comparison at any angle, the invention provides the following technical scheme: an LED display screen brightness auxiliary detection device with arbitrary angle contrast detection comprises a base, wherein a sliding guide rail is fixedly connected to the left end of the upper portion of the base, a sliding groove is formed in the sliding guide rail, a supporting column is fixedly connected to the right end of the upper portion of the base, an arc-shaped groove is formed in the middle of the supporting column, a rotating column is arranged in the arc-shaped groove and in the middle of the supporting column, a fixed disk is fixedly connected to the upper end of the supporting column, a bolt is in threaded connection with the right side of the fixed disk, a through hole is formed in the right side of the fixed disk and in the position of the bolt, a lower rotating disk is rotatably connected to the upper portion of the fixed disk, a gear is arranged in the fixed disk and on the lower side of the lower rotating disk, an arc-shaped metal sheet is arranged on the lower side of, the right-hand member fixedly connected with drive arrangement of support column, drive arrangement's upper end is provided with the pivot, the right side of fixed disk and sliding connection have L type pole in the through-hole, the upper portion of L type pole is provided with the last carousel corresponding with lower carousel, the lower part sliding connection of L type pole has right horizon bar, the left end of right horizon bar rotates and is connected with first pendulum rod, the left end of first pendulum rod and the first fluted disc of fixedly connected with on the rotary column, first fluted disc just meshes on the rotary column and is connected with the second fluted disc, the left end fixedly connected with second pendulum rod of second fluted disc, the left end of second pendulum rod rotates and is connected with left horizon bar, the outside of left horizon bar and sliding connection have the slide bar in the spout, the upper portion right-hand member fixedly connected with luminance detector of slide bar, be provided with the display screen down between.

Preferably, the right part of the fixed plate is provided with a threaded hole corresponding to the bolt, so that the L-shaped rod is fixed on the fixed plate through the bolt.

Preferably, the inner wall of the lower side of the lower rotary table is provided with teeth corresponding to the gear, so that the lower rotary table is ensured to drive the gear to rotate, and the diameter of the lower rotary table is twice of that of the gear.

Preferably, the radian of the arc-shaped metal sheet is adapted to the distance from the cylinder to the fixing rod, so that the arc-shaped metal sheet is ensured to be in rotating contact with the metal ball.

Preferably, the lower part of the L-shaped rod is provided with a sliding chute corresponding to the right horizontal rod, so that the right horizontal rod can slide on the lower part of the L-shaped rod.

Preferably, the length of the second swing rod is twice that of the first swing rod, so that the brightness detector is aligned with the middle of the display screen.

Preferably, the sliding guide rail is provided with a guide rail corresponding to the sliding rod in the sliding groove, so that the sliding rod can stably move up and down on the sliding guide rail.

Preferably, the lower part of the sliding rod is provided with a sliding chute corresponding to the left horizontal rod, so that the sliding of the left horizontal rod on the lower part of the moving rod is ensured.

(III) advantageous effects

Compared with the prior art, the invention provides the LED display screen brightness auxiliary detection device with any angle contrast detection, which has the following beneficial effects:

1. this LED display screen luminance assists detection device with arbitrary angle contrast detection, it fixes the display screen on lower carousel through last carousel on the L type pole, L type pole slides downwards through the through-hole, the lower part of L type pole drives right horizontal rod and moves down, right horizontal rod drives first fluted disc and drives the rotation of second fluted disc, the second fluted disc drives left horizontal rod rebound through the second pendulum rod, left horizontal rod drives the slide bar rebound, the slide bar drives the detector rebound of luminance, because the length of second pendulum rod is the twice of first pendulum rod, thereby guarantee that the luminance detector aligns with the middle part of display screen, it is fixed through the bolt at last, this structure has reached the effect of automatically regulated height, thereby solved current LED display screen luminance detection device can not automatically regulated height and inconvenient operation problem.

2. This LED display screen luminance auxiliary detection device with arbitrary angle contrast detects, through rotating the display screen, because lower carousel and last carousel are fixed with the display screen, so the display screen drives down the carousel and rotates, and the diameter of lower carousel is the twice of gear, consequently carousel pivoted angle is half of gear rotation angle down, through rotating the display screen to arbitrary position with the hand, arc sheetmetal and metal ball intercommunication on the gear, but the whole circuit is not closed, at this moment, detect luminous angle and the luminance of display screen through the luminance detector, then through intercommunication arc sheetmetal and metal ball, drive arrangement drives the twice of the original turned angle of lower carousel antiport through the pivot, promptly: the display screen reverse rotation is twice of the original angle, and the structure achieves the effect of reverse contrast of screen brightness detection data of any angle, so that the problem that the existing LED display screen brightness detection device is inaccurate in manual rotation angle when contrast detection is carried out, and the detection data is inaccurate is solved.

Drawings

FIG. 1 is a schematic view of the overall front structure of the present invention;

FIG. 2 is a cross-sectional view of the structure of FIG. 1 taken along line A-A of the present invention;

FIG. 3 is a schematic top view of a rotating column 302 according to the present invention;

FIG. 4 is a schematic view of the initial structure of the display screen and gears of the present invention;

FIG. 5 is a schematic view of the movement structure of the display screen and the gears according to the present invention.

In the figure: the device comprises a base 1, a sliding guide rail 2, a sliding chute 201, a supporting column 3, an arc-shaped groove 301, a rotating column 302, a fixed disk 4, a bolt 401, a through hole 402, a lower rotating disk 5, a gear 6, an arc-shaped metal sheet 7, a cylinder 8, a fixed rod 9, a metal ball 10, a driving device 11, a rotating shaft 1101, a 12L-shaped rod, an upper rotating disk 1201, a right horizontal rod 13, a first oscillating rod 14, a first fluted disc 15, a second fluted disc 16, a second oscillating rod 17, a left horizontal rod 18, a sliding rod 19, a brightness detector 20 and a display screen 21.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Please refer to fig. 1-5, an auxiliary detection device for the brightness of an LED display screen with any angle contrast detection, comprising a base 1, a sliding guide 2 fixedly connected to the left end of the upper portion of the base 1, a sliding groove 201 formed in the sliding guide 2, a supporting pillar 3 fixedly connected to the right end of the upper portion of the base 1, an arc-shaped groove 301 formed in the middle of the supporting pillar 3, a rotating pillar 302 arranged in the arc-shaped groove 301 in the middle of the supporting pillar 3, a fixed disk 4 fixedly connected to the upper end of the supporting pillar 3, a bolt 401 connected to the right side of the fixed disk 4, a through hole 402 formed in the right side of the fixed disk 4 at the position of the bolt 401, a lower rotating disk 5 rotatably connected to the upper portion of the fixed disk 4, a gear 6 arranged in the lower portion of the fixed disk 4 and on the lower side of the lower rotating disk 5, teeth corresponding to. The downside of gear 6 is provided with arc sheetmetal 7, and the upper portion of fixed disk 4 just rotates at the downside of gear 6 and is connected with cylinder 8, and the upper portion of fixed disk 4 just is provided with metal ball 10 at cylinder 8's left side fixedly connected with dead lever 9, the upper end of dead lever 9, and the radian of arc sheetmetal 7 suits with cylinder 8 to the distance of dead lever 9 to guarantee that arc sheetmetal 7 rotates the contact with metal ball 10. The right-hand member fixedly connected with drive arrangement 11 of support column 3, the upper end of drive arrangement 11 is provided with pivot 11.

An L-shaped rod 12 is slidably connected to the right side of the fixed disk 4 in the through hole 402, an upper rotating disk 1201 corresponding to the lower rotating disk 5 is arranged on the upper portion of the L-shaped rod 12, a threaded hole corresponding to the bolt 401 is formed in the right portion of the fixed disk 4, and therefore the L-shaped rod 12 is fixed on the fixed disk 4 through the bolt 401. The lower part of the L-shaped rod 12 is connected with a right horizontal rod 13 in a sliding manner, and the lower part of the L-shaped rod 12 is provided with a sliding chute corresponding to the right horizontal rod 13, so that the right horizontal rod 13 can slide on the lower part of the L-shaped rod 12. The left end of the right horizontal rod 13 is rotatably connected with a first swing rod 14, the left end of the first swing rod 14 is fixedly connected with a first fluted disc 15 on the rotary column 302, the first fluted disc 15 is connected with a second fluted disc 16 on the rotary column 302 in a meshing manner, the left end of the second fluted disc 16 is fixedly connected with a second swing rod 17, the left end of the second swing rod 17 is rotatably connected with a left horizontal rod 18, the outer side of the left horizontal rod 18 is connected with a sliding rod 19 in the sliding groove 201 in a sliding manner, the sliding guide rail 2 is provided with a guide rail corresponding to the sliding rod 19 in the sliding groove 201, so that the sliding rod 19 is ensured to move up and down on the sliding guide rail 2 stably, the sliding groove corresponding to the left horizontal rod 18 is provided at the lower part of the sliding rod 19, and the left horizontal rod 18 is ensured. The right end of the upper part of the sliding rod 19 is fixedly connected with a brightness detector 20, a display screen 21 is arranged between the lower rotary disc 5 and the upper rotary disc 1201, and the length of the second swing link 17 is twice of that of the first swing link 14, so that the brightness detector 20 is aligned with the middle part of the display screen 21.

The working principle is as follows: when the LED display screen brightness auxiliary detection device with any angle contrast detection is in an accident position, the brightness detector 20 is aligned with the upper surface of the lower rotary table 5, when the LED display screen brightness auxiliary detection device is in use, the display screen 21 is fixed on the lower rotary table 5 through the upper rotary table 1201 on the L-shaped rod 12, the L-shaped rod 12 slides downwards through the through hole 402, the lower part of the L-shaped rod 12 drives the right horizontal rod 13 to move downwards, the right horizontal rod 13 drives the first fluted disc 15 to drive the second fluted disc 16 to rotate, the second fluted disc 16 drives the left horizontal rod 18 to move upwards through the second swing rod 17, the left horizontal rod 18 drives the sliding rod 19 to move upwards, the sliding rod 19 drives the brightness detector 20 to move upwards, as the length of the second swing rod 17 is twice that of the first swing rod 14, the brightness detector 20 is ensured to be aligned with the middle part of the display screen 21, and finally the brightness detector is fixed through the bolt 401, and the structure, therefore, the problems that the height of the conventional LED display screen brightness detection device cannot be automatically adjusted and the operation is inconvenient are solved. By rotating the display screen 21, since the lower turntable 5 and the upper turntable 1201 fix the display screen 21, the display screen 21 drives the lower turntable 5 to rotate, as shown in fig. 4: the diameter of lower carousel 5 is the twice of gear 6, therefore lower carousel 5 pivoted angle is half of gear 6 turned angle, through rotating display screen 21 to arbitrary position with the hand, arc sheetmetal 7 and metal ball 10 intercommunication on the gear 6, but the whole circuit is not closed, at this moment, through luminance detector 20 detection display screen 21's luminous angle and luminance, then through intercommunication arc sheetmetal 7 and metal ball 10, drive arrangement 11 drives down carousel 5 through pivot 1101 and counter-rotates twice of original turned angle, promptly: display screen 21 reverse rotation original angle twice, this structure has reached the effect to arbitrary angle screen brightness detection data reverse contrast to solved current LED display screen brightness detection device and when the contrast was detected, manual pivoted angle is inaccurate, thereby leads to the inaccurate problem of detection data.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a LED display screen luminance assists detection device with arbitrary angle contrast detects, includes base (1), its characterized in that: the upper left end of the base (1) is fixedly connected with a sliding guide rail (2), a sliding groove (201) is formed in the sliding guide rail (2), a supporting column (3) is fixedly connected to the right end of the upper portion of the base (1), an arc-shaped groove (301) is formed in the middle of the supporting column (3), a rotating column (302) is arranged in the middle of the supporting column (3) and inside the arc-shaped groove (301), a fixed disc (4) is fixedly connected to the upper end of the supporting column (3), a bolt (401) is connected to the right side of the fixed disc (4) in a threaded manner, a through hole (402) is formed in the right side of the fixed disc (4) and at the position of the bolt (401), a lower rotating disc (5) is rotatably connected to the upper portion of the fixed disc (4), a gear (6) is arranged in the fixed disc (4) and on the lower side of the lower rotating disc (5), an arc-shaped metal, a fixed rod (9) is fixedly connected to the upper portion of the fixed disc (4) and the left side of the cylinder (8), a metal ball (10) is arranged at the upper end of the fixed rod (9), a driving device (11) is fixedly connected to the right end of the supporting column (3), a rotating shaft (11) is arranged at the upper end of the driving device (11), an L-shaped rod (12) is slidably connected to the right side of the fixed disc (4) in a through hole (402), an upper rotating disc (1201) corresponding to the lower rotating disc (5) is arranged at the upper portion of the L-shaped rod (12), a right horizontal rod (13) is slidably connected to the lower portion of the L-shaped rod (12), a first swing rod (14) is rotatably connected to the left end of the right horizontal rod (13), a first fluted disc (15) is fixedly connected to the left end of the first swing rod (14) in the rotating column (302), a second fluted disc (16) is engaged and connected to the first fluted disc (15) in the rotating column (302, the left end of the second swing rod (17) is rotatably connected with a left horizontal rod (18), the outer side of the left horizontal rod (18) is connected with a sliding rod (19) in a sliding way in the sliding groove (201), the right end of the upper portion of the sliding rod (19) is fixedly connected with a brightness detector (20), and a display screen (21) is arranged between the lower rotary disc (5) and the upper rotary disc (1201).

2. The device for auxiliary detection of the brightness of the LED display screen with any angle contrast detection according to claim 1, is characterized in that: the right part of the fixed disc (4) is provided with a threaded hole corresponding to the bolt (401).

3. The device for auxiliary detection of the brightness of the LED display screen with any angle contrast detection according to claim 1, is characterized in that: the inner wall of the lower side of the lower rotary table (5) is provided with teeth corresponding to the gear (6), and the diameter of the lower rotary table (5) is twice of that of the gear (6).

4. The device for auxiliary detection of the brightness of the LED display screen with any angle contrast detection according to claim 1, is characterized in that: the radian of the arc-shaped metal sheet (7) is adapted to the distance from the cylinder (8) to the fixing rod (9).

5. The device for auxiliary detection of the brightness of the LED display screen with any angle contrast detection according to claim 1, is characterized in that: the lower part of the L-shaped rod (12) is provided with a sliding chute corresponding to the right horizontal rod (13).

6. The device for auxiliary detection of the brightness of the LED display screen with any angle contrast detection according to claim 1, is characterized in that: the length of the second swing link (17) is twice that of the first swing link (14).

7. The device for auxiliary detection of the brightness of the LED display screen with any angle contrast detection according to claim 1, is characterized in that: and a guide rail corresponding to the sliding rod (19) is arranged on the sliding guide rail (2) and in the sliding groove (201).

8. The device for auxiliary detection of the brightness of the LED display screen with any angle contrast detection according to claim 1, is characterized in that: the lower part of the sliding rod (19) is provided with a sliding chute corresponding to the left horizontal rod (18).