CN218038467U

CN218038467U - LED transparent screen

Info

Publication number: CN218038467U
Application number: CN202222077653.2U
Authority: CN
Inventors: 廖南海
Original assignee: Shenzhen Huayi Brothers Photoelectric Co ltd
Current assignee: Shenzhen Huayi Brothers Photoelectric Co ltd
Priority date: 2022-08-09
Filing date: 2022-08-09
Publication date: 2022-12-13
Anticipated expiration: 2032-08-09

Abstract

A kind of LED transparent screen, including transparent base plate, transparent backup pad and several LED light-emitting chips, there are several grooves spaced the predetermined distance in the same direction of the transparent base plate in parallel, there are strip PCB light bar strips with said LED light-emitting chip in the groove, the transparent backup pad is set up in one side of the transparent base plate by said LED light-emitting chip, press LED light-emitting chip and strip PCB light bar in said groove, the transparent base plate and transparent backup pad are in removable connection through several fasteners; and a box body with a control circuit is arranged on the outer side edge of the bottom surface of the transparent substrate far away from the surface where the groove is located, and the control circuit is electrically connected with the strip-shaped PCB lamp panel strip. The utility model has the advantages of the pixel of transparent LED display screen does not receive restriction, easy maintenance and the luminous undisturbed that does not receive of LED chip basically.

Description

LED transparent screen

Technical Field

The utility model belongs to the technical field of the LED shows technique and specifically relates to a LED transparent screen.

Background

The LED transparent display screen is a flat panel display, which is composed of small LED transparent display modules and is used for displaying various information such as characters, images, videos and the like.

The traditional LED transparent display module is formed by arranging a strip of LED light bar in a frame, because of the limitation of the existing LED light bar preparation technology, the length size of the existing LED transparent display module is limited within 610mm, the most common size is 500mm, namely the frame size of the most common LED transparent display module is 500mmX500mm, if an LED transparent display screen with the size of 2000mmX2000mm needs to be manufactured, 8 LED transparent display modules with the size of 500mmX500mm are assembled, so that the installation and maintenance of the LED transparent display screen are difficult, originally, the transverse and vertical of each LED transparent display module need to be aligned during installation, otherwise, the ranks of the display are irregular; when in maintenance, if the LED transparent display module in the middle has a problem, the LED transparent display module around the LED transparent display module must be removed first to be taken out for maintenance, which causes difficulty in maintenance.

Chinese patent document CN114613281A discloses a transparent LED display screen, which includes a plurality of light emitting bodies, a protective cover and a substrate, wherein the protective cover is connected to one surface of the substrate, the plurality of light emitting bodies are disposed on the substrate, the protective cover is provided with a plurality of openings, the light emitting bodies are located in the openings, and the height of the openings is not lower than the height of the light emitting bodies. Although the transparent LED display screen with the structure can fix the LED lamp beads without a frame, the transparent LED display screen with the structure has the following problems that firstly, the transparent LED display screen with the structure is limited by physical size because the LED light-emitting chips are bound after circuits are printed on the substrate, the printed circuits can only be wired in a single layer, and pixels of the transparent LED display screen are limited due to the limitation of the loading capacity of the single-layer wired circuits; secondly, the existing processing and production mode of binding the LED light-emitting chip on the printed circuit on the substrate has complex processing technology and high cost, and when the LED light-emitting chip is bound on the transparent LED display screen of the printed circuit, the reverse processing procedure is complex and basically cannot be repaired; thirdly, the opening on the protective cover of the transparent LED display screen with the structure is limited by the hole distance and the diameter shape of the opening, and the pixel density of the transparent LED display screen is also influenced; fourthly set up a plurality of trompils on the protective cover to establish the LED chip in the trompil, when the LED chip is luminous, the vertical cross-section of trompil on the visor can produce photorefraction, influences the display effect, if will overcome the unfavorable effect that photorefraction produced, then need take more complicated technological means.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a pixel of transparent LED display screen does not receive restriction, easy maintenance and the luminous LED transparent screen who does not receive the interference basically of LED chip.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the LED transparent screen comprises a transparent substrate, a transparent support plate and a plurality of LED light-emitting chips, wherein a plurality of grooves with preset intervals are arranged in parallel in the same direction of the transparent substrate, strip-shaped PCB lamp strip strips with the LED light-emitting chips are arranged in the grooves, the transparent support plate is arranged on one side of the transparent substrate, which is close to the LED light-emitting chips, the LED light-emitting chips and the strip-shaped PCB lamp strip are pressed in the grooves, and the transparent substrate and the transparent support plate are detachably connected through a plurality of fasteners; the transparent substrate is far away from the box body with the control circuit is arranged on the outer side edge of the bottom surface of the surface where the groove is located, and the control circuit is electrically connected with the strip-shaped PCB lamp panel strip.

As an improvement, the light emitting surface of the LED light emitting chip and the notch surface of the groove are in the same plane.

As right the utility model discloses an improvement, strip PCB lamp lath comprises first short strip PCB lamp lath and the short strip PCB lamp lath of at least one second, first short strip PCB lamp lath with between the short strip PCB lamp lath of second, and the short strip PCB lamp lath of second with the short strip PCB lamp lath of second all connects through the connecting piece.

As an improvement of the present invention, the first short strip-shaped PCB lamp strip includes a control interface board and at least two first light bars extending along one side of the control interface board, a plurality of the LED light emitting chips and a plurality of LED driving chips are disposed on the first light bars, and the free ends of the first light bars are tenon structures; the second short strip-shaped PCB lamp strip comprises a connecting part, wherein a mortise hole matched with the tenon structure is formed in one side of the connecting part, at least two second light bars extend out of one side, away from the mortise hole, of the connecting part, a plurality of LED light-emitting chips and a plurality of LED driving chips are arranged on the second light bars, and the free ends of the second light bars are in tenon structures; the connecting piece is arranged between the tenon structure and the mortise opening.

As to the utility model discloses an it is right, every the length of first short strip PCB lamp lath is less than 610mm, and/or every the length of second short strip PCB lamp lath is less than 610mm.

As an improvement to the present invention, the length of each of the first strip-shaped PCB light bar strips is selected from 500mm to 610mm, and/or the length of each of the second strip-shaped PCB light bar strips is selected from 500mm to 610mm.

As right the utility model discloses an improvement, the connecting piece is including connecting the skeleton be equipped with two rows of interval predetermined distance's conductive terminal row from top to bottom on the connection skeleton, conductive terminal row one end with the structural terminal welding of tenon, the conductive terminal row other end with the terminal welding of mortise and tenon side.

As an improvement of the utility model, the transparent support plate is made of PC, PET or PMMA material.

As an improvement to the utility model, the transparent substrate is made of PC, PET or PMMA material.

As right the utility model discloses an improvement the control interface board is equipped with a plurality of conductive joint and a plurality of peripheral electronic component, peripheral electronic component through a plurality of conductive joint with control circuit connects, be used for LED luminescence chip provides power and control signal.

The utility model discloses owing to adopted in the same direction of transparent base plate parallel be equipped with a plurality of intervals predetermined distance's recess, be equipped with in the recess have the LED give off light chip strip PCB lamp strip, transparent support plate establishes in one side of transparent base plate by the LED give off light chip, with the LED give off light chip with strip PCB lamp strip is pressed in the recess, transparent base plate and transparent support plate are detachable connection through a plurality of fasteners; transparent substrate keep away from be equipped with the box body that has control circuit on the outside limit of the bottom surface of recess place face, control circuit with strip PCB lamp panel strip electric connection's structure, so, the utility model has the advantages of the pixel of transparent LED display screen does not receive restriction, easy maintenance basically and the luminous undisturbed of LED chip.

Drawings

Fig. 1 is a schematic plan view of an embodiment of the present invention.

Fig. 2 is a side view of the structure of fig. 1.

Fig. 3 is an enlarged schematic view of a portion a in fig. 2.

Fig. 4 is a schematic top view of the structure of fig. 1.

Fig. 5 is an enlarged schematic view of B in fig. 4.

Fig. 6 is a schematic view of the embodiment of fig. 1 with the transparent support plate removed.

Fig. 7 is an enlarged schematic view of the structure at C in fig. 6.

Fig. 8 is a schematic view of the structure of the strip-shaped PCB light bar of fig. 6.

Fig. 9 is a schematic plan view of the connector of the present invention.

Fig. 10 is a schematic top view of the structure of fig. 9.

Fig. 11 is a side view schematic of the structure of fig. 9.

Fig. 12 is a schematic perspective view of fig. 9.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it should be understood that the described embodiments are only some embodiments of the present invention, but not all embodiments.

Referring to fig. 1-8, fig. 1-8 disclose an LED transparent screen, which includes a transparent substrate 1, a transparent supporting plate 2 and a plurality of LED light-emitting chips 3, wherein a plurality of grooves 11 spaced at a predetermined distance are arranged in parallel in the same direction of the transparent substrate 1, strip-shaped PCB lamp strips 31 with the LED light-emitting chips 3 are arranged in the grooves 11, the transparent supporting plate 2 is arranged on one side of the transparent substrate 1 near the LED light-emitting chips 3, the LED light-emitting chips 3 and the strip-shaped PCB lamp strips 31 are pressed in the grooves 11, and the transparent substrate 1 and the transparent supporting plate 2 are detachably connected through a plurality of fasteners 4; the transparent substrate 1 is far away from the box body 5 with the control circuit is arranged on the outer side edge of the bottom surface of the surface where the groove 11 is located, and the control circuit 51 is electrically connected with the strip-shaped PCB lamp panel strip 31.

In this embodiment, the fastening member 4 includes a plurality of nuts and a plurality of screws, the nuts can be pre-embedded at appropriate positions of the transparent support plate 2, then corresponding through holes are formed in the transparent substrate 1 corresponding to the positions of the nuts, the screws are threaded through the through holes and the nuts during installation, the transparent substrate 1 is fixed on the transparent support plate 2, during installation, the transparent support plate 2 is fixed at an appointed position (for example, on a glass wall of an office, the transparent support plate can be fixed in an adhesive manner), and then the transparent substrate 1 is fixed on the transparent support plate 2 through the fastening member 4. The structure is convenient to maintain, when the strip-shaped PCB lamp panel 31 needs to be maintained, the transparent support plate 2 is fixed in the original position only by loosening the screw rod, and the strip-shaped PCB lamp panel 31 can be maintained by taking down the transparent substrate 1; of course, the utility model discloses in, the nut with the position of screw rod can be exchanged, is about to the screw rod is established on the transparent support plate 2, through the nut will transparent substrate 1 is fixed in on the transparent support plate 2.

The utility model solves the technical problems in the prior art that firstly, because the printed circuit is bound with the LED luminous chip on the substrate, the circuit is limited by physical size, and the printed circuit can only be wired in single layer; secondly, the LED light-emitting chip is arranged in the protective hole, and the protective hole is limited by the hole distance and the diameter shape of the opening, so that the display visual angle and the pixel density are limited; thirdly, when a single-layer circuit is printed on a substrate, the density of the circuit is restricted, and the energy passing through the current is limited; fourthly, the processing and production mode of binding the LED light-emitting chip on the printed circuit on the substrate at present is complex in processing technology and high in cost, and when the LED light-emitting chip is bound on the printed substrate, color and brightness sorting can not be carried out basically, the color difference is relatively large, the reverse process is complex, and repair cannot be carried out; fifthly, among the prior art, trompil lets LED luminescence chip downthehole on transparent panel, and interference light can appear in transparent panel's trompil cross-section when LED is luminous, and the trompil cross-section produces photorefraction, influences holistic display effect of lighting, the utility model discloses a grooved mode adds the plane formula the problem of interference light can be solved to transparent support plate 2's mode.

The utility model can design the PCB into multilayer circuit to solve the problem of the wiring quantity, the space and the over-current capability reaching the overlong belt load and the problem of the area belt load capability without framework support; the single LED is pasted on the PCB board, the process is simple, secondary light splitting and color separation can be carried out on the single LED after the packaging is finished, and the color difference between the light-emitting chips can be better controlled, so that the displayed color has higher restoration degree and better color consistency. Single LED has a support, has the spotlight cup, the effectual luminous efficacy who improves luminescent chip, the utility model discloses a grooved mode is placed PCB's lamp strip in the recess again, and the grooved degree of depth can control light emitting area and fluting face parallel and level well in the matching, can not be because the luminous visual angle of structure influence, and the panel on surface both is the protection panel and also can be the support piece that the installation is fixed, and processing technology is simple with low costs moreover, does not influence the display effect after LED lights moreover.

Preferably, the light emitting surface of the LED light emitting chip 3 and the notch surface of the groove 11 are in the same plane.

Preferably, the transparent support plate 2 and the transparent substrate 1 are made of PC, PET or PMMA material.

Referring to fig. 5, in the present invention, the box body 5 includes a first box body 52 and a second box body 53, the first box body 52 is connected to the transparent substrate 1, and the second box body 53 is connected to the first box body 52 through a hinge 54 and a quick buckle 55, so that the transparent substrate 1 is not required to be taken down, and the control circuit 51 can be conveniently overhauled.

Referring to fig. 6 to 8, the strip-shaped PCB lamp panel 31 is composed of a first strip-shaped PCB lamp panel 311 and at least one second strip-shaped PCB lamp panel 312, and the first strip-shaped PCB lamp panel 311 is connected to the second strip-shaped PCB lamp panel 312 through a connector 313, and the second strip-shaped PCB lamp panel is connected to the second strip-shaped PCB lamp panel through a connector 312. Specifically, each LED transparent screen can be provided with a first short strip-shaped PCB lamp panel 311 and 1-3 second short strip-shaped PCB lamp panels 312 which are spliced according to the specific parameter requirements of customers, if the length of the strip-shaped PCB lamp panel 31 is larger than the requirements of customers after the last second short strip-shaped PCB lamp panel 312 is spliced, the last section of the last second short strip-shaped PCB lamp panel 312 can be cut into a section according to the requirements, and the use of the strip-shaped PCB lamp panel 31 is not influenced.

Preferably, the first short strip-shaped PCB lamp panel strip 311 includes a control interface board 3111 and at least two first light bars 3112 extending from one side of the control interface board 3111, the plurality of LED light emitting chips 3 and the plurality of LED driving chips 32 are disposed on the first light bars 3112, and a free end of the first light bars 3112 is a tenon structure 3113; the second short strip-shaped PCB lamp panel strip 312 comprises a connecting portion 3121, a mortise port 3122 matched with the tenon structure 3113 is arranged on one side of the connecting portion 3121, at least two second branch lamp strips 3123 extend from one side of the connecting portion 3121 far away from the mortise port 3122, the plurality of LED light-emitting chips 3 and the plurality of LED driving chips 32 are arranged on the second branch lamp strips 3123, and the free end of the second branch lamp strips 3123 is in a tenon structure 3113; the connecting piece 313 is arranged between the tenon structure 3113 and the mortise port 3122. Through the structure of tenon fourth of twelve earthly branches plus connecting piece, not only can use power and the signal of telecommunication switch-on between the PCB lamp plate strip, but also can strengthen the intensity of connecting portion through connecting piece 313, make fastness between them better.

Preferably, the length of each first short strip-shaped PCB light bar 311 is less than 610mm, and/or the length of each second short strip-shaped PCB light bar 312 is less than 610mm; will first short strip PCB lamp panel strip 311 with second short strip PCB lamp panel strip 312 is injectd within 610mm, like this, can adopt the system board technique of ripe PCB board to ripe paster technique can reduce the manufacturing cost of PCB lamp panel strip, improves production efficiency and yields.

Preferably, the length of each first short strip-shaped PCB lamp panel strip 311 is selected from 500mm to 610mm, and/or the length of each second short strip-shaped PCB lamp panel strip 312 is selected from 500mm to 610mm, and the PCB lamp strip is selected from 500mm to 610mm, so that the optimal cost performance is achieved.

Preferably, the control interface board 3111 is provided with a plurality of electrical connectors 31111 and a plurality of peripheral electronic components 31112, and the peripheral electronic components 31112 are connected to the control circuit through the plurality of electrical connectors 31111 for providing power and control signals to the LED light emitting chip 3.

Referring to fig. 9-12, the connecting member 313 includes a connecting frame 3131, two rows of conductive terminal rows 3132 (in this embodiment, the conductive terminal rows 3132 are two rows, each row of conductive terminal rows 3132 has 4 conductive terminals, and the number of conductive terminals can be increased or decreased according to actual needs) are disposed on the connecting frame 3131, one end of the conductive terminal row 3132 is welded to the terminal on the tenon structure 3113, and the other end of the conductive terminal row 3132 is welded to the terminal on the mortise port 3122 side.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a LED transparent screen, includes transparent substrate (1), transparent support board (2) and a plurality of LED luminescence chip (3), its characterized in that: a plurality of grooves (11) with preset intervals are arranged in parallel in the same direction of the transparent substrate (1), strip-shaped PCB lamp panel strips (31) with the LED light-emitting chips (3) are arranged in the grooves (11), the transparent support plate (2) is arranged on one side, close to the LED light-emitting chips (3), of the transparent substrate (1), the LED light-emitting chips (3) and the strip-shaped PCB lamp panel strips (31) are pressed in the grooves (11), and the transparent substrate (1) and the transparent support plate (2) are detachably connected through a plurality of fasteners (4); the transparent substrate (1) is far away from the box body (5) with the control circuit is arranged on the outer side edge of the bottom surface of the surface where the groove (11) is located, and the control circuit (51) is electrically connected with the strip-shaped PCB lamp panel strip (31).

2. LED transparent screen according to claim 1, characterized in that the light emitting surface of the LED light emitting chip (3) is in the same plane as the notch surface of the groove (11).

3. The LED transparent screen of claim 1 or 2, wherein the strip-shaped PCB lamp panel strip (31) is composed of a first short strip-shaped PCB lamp panel strip (311) and at least one second short strip-shaped PCB lamp strip (312), the first short strip-shaped PCB lamp panel strip (311) and the second short strip-shaped PCB lamp strip (312) are connected with each other through a connecting piece (313).

4. The LED transparent screen according to claim 3, wherein the first strip-shaped PCB lamp panel strip (311) comprises a control interface board (3111) and at least two first light bars (3112) extending from one side of the control interface board (3111), a plurality of LED light emitting chips (3) and a plurality of LED driving chips (32) are arranged on the first light bars (3112), and the free ends of the first light bars (3112) are tenon structures (3113); the second short strip-shaped PCB lamp strip (312) comprises a connecting portion (3121), a mortise opening (3122) matched with the tenon structure (3113) is arranged on one side of the connecting portion (3121), at least two second branch lamp strips (3123) extend from one side, far away from the mortise opening (3122), of the connecting portion (3121), the plurality of LED light-emitting chips (3) and the plurality of LED driving chips (32) are arranged on the second branch lamp strips (3123), and the free ends of the second branch lamp strips (3123) are tenon structures (3113); the connecting piece (313) is arranged between the tenon structure (3113) and the mortise opening (3122).

5. The LED transparent screen as claimed in claim 4, wherein the length of each first strip-shaped PCB lamp panel strip (311) is less than 610mm, and/or the length of each second strip-shaped PCB lamp panel strip (312) is less than 610mm.

6. The LED transparent screen according to claim 4, characterized in that the length of each first short strip-shaped PCB light panel strip (311) is selected between 500mm-610mm, and/or the length of each second short strip-shaped PCB light panel strip (312) is selected between 500mm-610 mm.

7. The LED transparent screen according to claim 4, wherein the connecting member (313) comprises a connecting skeleton (3131), two rows of conductive terminal rows (3132) spaced apart from each other by a predetermined distance are disposed on the connecting skeleton (3131), one end of the conductive terminal row (3132) is welded to the terminal on the tenon structure (3113), and the other end of the conductive terminal row (3132) is welded to the terminal on the mortise slot (3122) side.

8. LED transparent screen according to claim 4, characterized in that there are several electrical connectors (31111) and several peripheral electronic components (31112) on the control interface board (3111), the peripheral electronic components (31112) being connected to the control circuit through several electrical connectors (31111) for supplying power and control signals to the LED lighting chips (3).