CN219085630U

CN219085630U - LED display screen spot inspection module

Info

Publication number: CN219085630U
Application number: CN202223327393.6U
Authority: CN
Inventors: 蒲长清
Original assignee: Shenzhen Venu Photoelectricity Co ltd
Current assignee: Shenzhen Venu Photoelectricity Co ltd
Priority date: 2022-12-09
Filing date: 2022-12-09
Publication date: 2023-05-26
Anticipated expiration: 2032-12-09

Abstract

The utility model relates to a module is examined to LED display screen point belongs to the LED display screen field, and current LED display module of conventional technical means can't detect bad point, can not only influence the normal demonstration of LED and damage whole module through bad point when there is bad point in the LED display module, this application is through detecting LED lamp module and bright bad point warning light by drive IC chip, and it includes shell, LED circuit board and a plurality of LED lamp module equal fixed connection is in on the shell, LED circuit board with LED lamp module electric connection, just the LED circuit board is including being used for detecting the condition that LED lamp module is out of order appears bad point and needs to overhaul in the LED display screen, has the effect that improves the unable detection bad point of LED module and influence the module.

Description

LED display screen spot inspection module

Technical Field

The application relates to the field of LED display screens, in particular to an LED display screen spot inspection module.

Background

The LED display screen module is one of the main components forming the finished product of the LED display screen and is as follows! The LED lamp is mainly composed of an LED lamp, a PCB circuit board, a driving IC, a resistor, a capacitor and a plastic sleeve. The LED display screen module comprises a single-color display screen module, a double-color display screen module and a full-color display screen module, wherein in the use process of the LED display screen, the lamp beads are affected by current, use duration, service life and external environment, and the lamp beads of the LED display screen are worn out to different degrees.

In the related technical means, the existing LED display module cannot detect the dead pixel, and when the dead pixel exists in the LED display module, the normal display of the LED is affected, and the whole module is more likely to be damaged through the dead pixel.

According to the technical means, as the LED display module cannot autonomously detect, the LED display module can actively observe only after the LED display screen has dead pixels, the whole module can be influenced for a long time, and the problem that the LED module cannot detect the dead pixels to influence the module exists.

Disclosure of Invention

In order to solve the problem that the LED module cannot detect bad points to affect the module, the application provides a spot inspection module for an LED display screen.

The application provides a module is examined to LED display screen point adopts following technical scheme:

the utility model provides a module is examined to LED display screen point, includes shell, LED circuit board and a plurality of LED lamp module, LED circuit board and a plurality of the equal fixed connection of LED lamp module is in on the shell, the LED circuit board with LED lamp module electric connection, just the LED circuit board is including being used for detecting whether the drive IC chip of LED lamp module trouble.

Through adopting above-mentioned technical scheme, in the display screen use, after a certain lamp pearl damages and appears bad point on the LED lamp module, the drive IC chip simultaneously controls the LED of multiunit LED lamp module and lights to observe the position that bad point appears, thereby avoid further influencing whole LED display screen.

Optionally, the LED lamp module is provided with two first LED lamp beads that show the same color and a second LED lamp bead that shows another color, the first LED lamp bead with the second LED lamp bead is parallelly connected, the drive IC chip control the first LED lamp bead with the second LED lamp bead.

Through adopting above-mentioned technical scheme, when the bad point appears, because first LED lamp pearl and second LED lamp pearl are parallelly connected to when the bad point appears in first LED lamp pearl or second LED lamp pearl of a set of LED lamp module, whether damage appears in first LED lamp pearl or second LED lamp pearl appears damaging can be clear observation.

Optionally, the LED circuit board further includes a PCB circuit board for controlling the on/off and color of the LED lamp module, and the first LED lamp bead and the second LED lamp bead are connected with the PCB circuit board through the driving IC chip.

By adopting the technical scheme, the control of the opening and closing of the color can clearly display the position of the dead pixel when in observation, so that the subsequent overhaul is convenient.

Optionally, the LED lamp farm module further includes a plurality of bad point indicator lights, where the bad point indicator lights are connected in series on the driving IC chip, and when the LED lamp module has a bad point, the bad point indicator lights are turned on.

Through adopting above-mentioned technical scheme, after appearing bad point, the bright of bad point warning light can very audio-visual show that the harm has appeared in the LED display screen to prompt the timely stop of maintainer and use the LED display screen and overhaul.

Optionally, the driving IC chip is provided with a plurality of driving IC chips, and one driving IC chip controls a plurality of the first LED lamp beads and the second LED lamp beads and forms a group of LED detection groups with one defective pixel indicator lamp.

Through adopting above-mentioned technical scheme, after the bad point appears in the LED display screen, the bright demonstration that plays of bad point suggestion lamp can be clear, and bad point is located which LED detects the group, then through control colour and switching to the quick detection position.

Optionally, the bad point indicator light is located in the housing and penetrates out of the housing, and the bad point indicator light is located above the PCB.

Through adopting above-mentioned technical scheme, after the bad point appears, bad point warning light lights in the shell top, on the one hand the suggestion maintainer, on the other hand do not coincide with the LED lamp module, can in time discover the bad point warning light and light.

Optionally, a protective cap extension for sun-shading and rain-proof is arranged on the front surface of the shell.

Through adopting above-mentioned technical scheme, the setting that the protection cap was prolonged makes the circumstances that the damage appears in the reduction of LED display screen as far as possible to reduce the possibility that appears bad point.

Optionally, a waterproof sink is arranged at the back of the shell, and a waterproof sealing gasket is sealed on the waterproof sink.

Through adopting above-mentioned technical scheme, install under the outside condition at the LED display screen, waterproof sealing pad can reduce the inside condition of rainwater infiltration shell to the LED circuit board in the protection shell as far as possible.

In summary, the present application includes at least one of the following beneficial technical effects:

1. and detecting bad points. In the use process of the display screen, after a certain lamp bead on the LED lamp module is damaged to generate a dead spot, the drive IC chip controls the dead spot prompting lamp to be lighted, and simultaneously controls all first LED lamp beads and second LED lamp beads of the plurality of groups of LED lamps to be lighted so as to observe the position of the dead spot.

2. And prompting bad points. After the dead pixel appears, the dead pixel prompting lamp is lighted above the shell, and meanwhile, the driving IC chip controls the first LED lamp beads and the second LED lamp beads on the group of LED detection groups to be lighted, so that on one hand, a maintainer is prompted, on the other hand, the dead pixel prompting lamp is not overlapped with the LED lamp module, and the dead pixel prompting lamp can be timely found to be lighted.

3. And protecting the LED display screen. The arrangement of the protective cap extension enables the damage of the LED display screen to be reduced as much as possible, so that the possibility of occurrence of dead spots is reduced. Meanwhile, under the condition that the LED display screen is installed outside, the waterproof sealing gasket can reduce the condition that rainwater permeates into the shell, so that the LED circuit board in the shell is protected as much as possible.

Drawings

Fig. 1 is a schematic diagram of an overall structure of an LED display screen spot inspection module according to an embodiment of the present application;

fig. 2 is a schematic diagram of an explosion structure of an LED display screen spot inspection module according to an embodiment of the present application;

fig. 3 is a schematic diagram of an explosion structure of a fixed case of an LED display screen spot inspection module according to an embodiment of the present application;

fig. 4 is a back view of an LED circuit board of an LED display spot inspection module according to an embodiment of the present application.

Reference numerals illustrate:

1. a housing; 11. a mounting shell; 111. extending the protective cap; 112. the lamp beads are placed in the through holes; 12. a fixed case; 121. a clamping groove; 122. waterproof sink; 13. a waterproof gasket;

2. an LED circuit board; 21. a driving IC chip; 22. a PCB circuit board;

3. an LED lamp module; 31. the first LED lamp beads; 32. the second LED lamp beads; 33. bad point prompting lamp; 34. an LED lamp;

4. and an LED detection group.

Detailed Description

The present application is described in further detail below in conjunction with figures 1-4.

The embodiment of the application discloses a module is examined to LED display screen point. Referring to fig. 1 and 2, an LED display spot inspection module includes a housing 1, an LED circuit board 2, and an LED lamp module 3, the LED lamp module 3 is connected in series with the LED circuit board 2, the housing 1 includes a mounting case 11, a fixing case 12, and a waterproof gasket 13, the fixing case 12 has a clamping groove 121, the LED circuit board 2 is clamped in the clamping groove 121, and then is fixedly connected with the mounting case 11 by the fixing case 12 through bolts, thereby realizing that the LED circuit board 2 and the LED lamp module 3 are mounted on the housing 1, the waterproof gasket 13 is disposed on the fixing case 12, so as to reduce rainwater from affecting the inside LED circuit board 2 when the LED display is fixed on a wall or other mounting bases.

Referring to fig. 2 and 3, the mounting case 11 has a plurality of bead placement through holes 112, and three bead placement through holes 112 are grouped together, and a plurality of groups are provided on the mounting case 11. The front of the installation shell 11 is provided with a protective cap extension 111 in a protruding mode, and the protective cap extension 111 is also provided with a plurality of groups so as to protect the LED lamp module 3 in the use process and reduce the influence of direct sunlight and rainwater. In addition, a waterproof sinking groove 122 is formed in the back of the fixing shell 12, a waterproof sealing gasket 13 is clamped in the waterproof sinking groove 122, an alignment hole is formed in the bottom of the waterproof sinking groove 122, and an alignment boss is arranged on the waterproof sealing gasket 13 so that the position is accurate when the waterproof sealing gasket 13 is installed.

Referring to fig. 2 and 4, the led circuit board 2 includes a driving IC chip 21 and a PCB wiring board 22, and the driving IC chip 21 is provided in plurality and is located at the back of the PCB wiring board 22. The LED lamp module 3 includes first LED lamp pearl 31, second LED lamp pearl 32 and bad point suggestion lamp 33, and first LED lamp pearl 31, second LED lamp pearl 32 and bad point suggestion lamp 33 all are provided with a plurality ofly, and all weld in the front of PCB circuit board 22 through the wire. Wherein two first LED lamp pearls 31 level sets up, second LED lamp pearl 32 is located the below of first LED lamp pearl 31 and forms a set of LED lamp 34, thereby form multiunit LED lamp 34 on shell 1, bad point suggestion lamp 33 sets up in PCB circuit board 22's top position, multiunit LED lamp 34, a drive IC chip 21 and a bad point suggestion lamp 33 form a set of LED and detect group 4, realize forming multiunit LED and detect group 4 on shell 1, reduce the testing pressure of drive IC chip 21 when making appearing bad point, and reduce the time cost of seeking bad point. When the first LED beads 31 or the second LED beads 32 of the one group of LED lamps 34 are damaged, the driving IC chip 21 controls the lighting of the defective pixel prompting lamp 33 after detecting the defective pixel, and simultaneously controls all the first LED beads 31 and the second LED beads 32 of the plurality of groups of LED lamps 34 to light so as to observe the position where the defective pixel appears. In the present embodiment, thirty-two groups of LED lamps 34 and four groups of LED detection groups 4 are provided in total, and the defective pixel indicator lamp 33 is located at the middle position of the LED detection groups 4.

The implementation principle of the LED display screen spot inspection module provided by the embodiment of the application is as follows:

in the use process of the display screen, after a defective pixel occurs due to damage to a certain lamp bead on the LED lamp module 3, the driving IC chip 21 controls the defective pixel prompting lamp 33 to be turned on, and simultaneously controls all the first LED lamp beads 31 and the second LED lamp beads 32 of the plurality of groups of LED lamps 34 to be turned on so as to observe the position where the defective pixel occurs.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way. Wherein like parts are designated by like reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the drawings, and the words "inner" and "outer" refer to directions toward or away from, respectively, the geometric center of a particular component. Therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims

1. The utility model provides a module is examined to LED display screen point, its characterized in that includes shell (1), LED circuit board (2) and a plurality of LED lamp module (3) are all fixed connection be in on shell (1), LED circuit board (2) with LED lamp module (3) electric connection, just LED circuit board (2) are including being used for detecting whether drive IC chip (21) of LED lamp module (3) trouble.

2. The LED display screen spot inspection module according to claim 1, wherein the LED lamp module (3) is provided with two first LED lamp beads (31) displaying the same color and a second LED lamp bead (32) displaying another color, the first LED lamp beads (31) and the second LED lamp beads (32) are connected in parallel, and the driving IC chip (21) controls the first LED lamp beads (31) and the second LED lamp beads (32).

3. The LED display screen spot inspection module according to claim 2, wherein the LED circuit board (2) further comprises a PCB circuit board (22) for controlling the on/off and color of the LED lamp module (3), and the first LED lamp beads (31) and the second LED lamp beads (32) are connected with the PCB circuit board (22) through the driving IC chip (21).

4. A spot inspection module for an LED display screen according to claim 3, wherein the LED lamp module (3) further comprises a plurality of spot defect indicator lamps (33), the spot defect indicator lamps (33) are connected in series on the driving IC chip (21), and when the LED lamp module (3) has a spot defect, the spot defect indicator lamps (33) are turned on.

5. The LED display screen spot inspection module according to claim 4, wherein a plurality of said driving IC chips (21) are provided, one of said driving IC chips (21) controlling a plurality of said first LED beads (31) and said second LED beads (32) and forming a group of LED inspection groups (4) with one of said bad spot indication lamps (33).

6. The LED display spot inspection module of claim 5, wherein said spot defect indicator (33) is located in said housing (1) and protrudes through said housing (1), and said spot defect indicator (33) is located above said PCB (22).

7. The LED display screen spot inspection module according to claim 1, wherein the front surface of the housing (1) is provided with a protective cap extension (111) for sun-shading and rain-proof.

8. The spot inspection module for the LED display screen according to claim 1, wherein a waterproof sink (122) is arranged on the back of the shell (1), and a waterproof sealing gasket (13) is sealed on the waterproof sink (122).