CN216435373U

CN216435373U - Positive light-emitting LED transparent screen

Info

Publication number: CN216435373U
Application number: CN202122775524.6U
Authority: CN
Inventors: 廖南海
Original assignee: Shenzhen Huayi Brothers Photoelectric Co ltd
Current assignee: Shenzhen Huayi Brothers Photoelectric Co ltd
Priority date: 2021-11-14
Filing date: 2021-11-14
Publication date: 2022-05-03
Anticipated expiration: 2031-11-14

Abstract

The utility model relates to a LED display screen technical field just discloses a positive luminous LED transparent screen, including the PCB circuit board, the positive top of PCB circuit board and bottom all bond there is the hardboard, the positive center department of PCB circuit board is provided with the light trough. This positive luminous LED transparent screen, flexible double-sided board and two support through the lamp plate by a band circuit constitute with the hardboard, for eight plywood, even as four-layer board, the cost can be low a lot, and the flexonics can be carried out, therefore the width of a lamp can only be seen to the display surface, do not influence the luminousness, can widen flexible circuit board's width on this basis, with this increase bigger electric capacity, promote and show luminance, what this board was taken is positive luminous LED lamp, LED lamp light emitting area is not parallel with the PCB board, the condition that shelters from can not appear, so the viewing angle can reach-120 to 120, thereby still compromise higher luminousness and bigger viewing angle when making the LED display screen reach hi-lite.

Description

Positive light-emitting LED transparent screen

Technical Field

The utility model relates to a LED display screen technical field specifically is a positive luminous LED transparent screen.

Background

The LED display screen is a flat panel display, and is an apparatus composed of a plurality of small LED module panels for displaying various information such as text, images, video, and video signals. The technology of the LED transparent screen which is emitting light at present is mature, but the requirement on brightness is higher, and meanwhile, higher light transmittance and larger viewing angle need to be considered.

The current transparent screen form divide into three kinds, the first kind is positive luminous table subsides, this board all is the multiply wood, be 4 plywoods at least, 8 plywoods have been accomplished even a bit, the system board is with high costs, and luminance can't be too high, owing to be the multiply wood, so the circuit copper thickness of inlayer can be thin a lot, secondly in order to guarantee the permeability, each lamp strip can not be too wide, so the circuit is also thinner, the lamp plate both ends voltage difference is great, the luminance of lamp also can be inconsistent, consequently can only be through reducing luminance in order to reach the same luminance, furthermore stability is relatively weak, make circuit intercommunication through the via hole between the multiply wood each layer, for many two-layer boards pressfitting together when making the PCB board, in the in-service use, expend with heat and contract with cold can lead to partial via hole inefficacy, lead to the circuit not logical.

The second is the luminous side subsides of side, and the shortcoming of this kind of form lamp plate is that to watch the visual angle little, because LED lamp light emitting area is parallel with the PCB board, consequently can reach 120 at this orientation visual angle of LED lamp great, and it is less to watch the visual angle at the PCB board direction, and only 30 at most, so the limitation is too big in the in-service use.

The third kind is just pasting in side luminescence, and the shortcoming of this kind of form lamp plate is that the PCB board preparation is complicated, and the paster position is in lamp strip side, in order to fix the LED lamp, need at the side grooving, then do the pad, and the paster tool preparation is complicated, and the paster technology is complicated, and the paster needs 2 at least.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides a positive luminous LED transparent screen possesses advantages such as with low costs, luminance is high, stability is strong, watch the visual angle wide, paster technology and paster tool are simple, has solved the transparent screen of current form with high costs, the bit error rate is high and the slow problem of reaction rate.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a positive luminous LED transparent screen, includes the PCB circuit board, the positive top of PCB circuit board and bottom all bond there is the hardboard, the positive center department of PCB circuit board is provided with the light trough.

Preferably, the PCB circuit board is a flexible double-sided board.

Preferably, the two hard boards are arranged in an up-and-down symmetrical manner by taking the center line of the front surface of the PCB as a symmetry axis.

Preferably, the outer edges of both said rigid plates are aligned with the edges of the PCB circuit board.

Preferably, the two hard plates are made of FR-grade epoxy resin plates.

Preferably, the light trough is located on the opposite side of the two rigid plates.

Compared with the prior art, the utility model provides a positive luminous LED transparent screen possesses following beneficial effect:

1. this positive luminous LED transparent screen, through setting up PCB circuit board and hardboard, because the lamp plate comprises a flexible double sided board and two supports with the hardboard of taking the circuit, for eight plywood, even as for four-layer board, the cost can be low a lot, and the flexboard can carry out the fifty percent discount, consequently, the width of a lamp can only be seen to the display surface, do not influence the luminousness, can widen the width of flexible circuit board on this basis, with this increase bigger electricity capacity of crossing, promote and show luminance, what this board was taken is positive luminous LED lamp, LED lamp light emitting area is not parallel with the PCB board, the condition that shelters from can not appear, so the viewing angle can reach-120 to 120, thereby still compromise higher luminousness and bigger viewing angle when making the LED display screen reach hi-lite.

2. This positive luminous LED transparent screen, through setting up the PCB circuit board, this board is the biplate, does not have pressfitting technology, and the phenomenon of expend with heat and contract with cold that in use appears influences little to the via hole, and consequently stability is strong, and paster technology and paster tool are simple moreover, and paster one shot forming does not need many times the paster, and paster components and parts all are in the coplanar, so do not need to make complicated paster tool.

Drawings

Fig. 1 is a schematic view of a partial structure of a lamp panel of the utility model;

fig. 2 is a schematic diagram of the hard board structure of the present invention.

Wherein: 1. a PCB circuit board; 2. hard plates; 3. a lamp groove.

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 efforts all belong to the protection scope of the present invention.

Referring to fig. 1-2, a positive light-emitting LED transparent screen includes a PCB 1, the PCB 1 is a flexible double-sided board, the two boards have no pressing process, the effect of expansion and contraction during use is small, the stability is strong, the mounting process and mounting jig are simple, the mounting is performed at one time, the mounting is performed without multiple times of mounting, the mounting components are located on the same plane, the complex mounting jig is not required, the top and bottom of the front surface of the PCB 1 are both bonded with hard boards 2, the two hard boards 2 are symmetrically arranged up and down with the center line of the front surface of the PCB 1 as the symmetry axis, the outer edges of the two hard boards 2 are aligned with the edge of the PCB 1, the two hard boards 2 are made of FR-4 grade epoxy resin boards, the two same FR-4 grade epoxy resin hard boards 2 have direct insertion and flame retardant functions, the PCB 1 and the hard board 2 are arranged, because the lamp panel is composed of a flexible double-sided board with a circuit and two hard boards 2 for supporting, compared with eight-layer boards, even four-layer boards, the cost is much lower, and the flexible board can be folded in half, so that the width of only one lamp can be seen on the display surface without influencing the light transmittance, on the basis, the width of the flexible circuit board can be widened, so that the over-current capacity is increased, the display brightness is improved, the board adopts the LED lamp which emits light positively, the light emitting surface of the LED lamp is not parallel to the PCB, the shielding condition can not occur, therefore, the viewing angle can reach-120 degrees to 120 degrees, so that the LED display screen achieves high brightness and simultaneously also has higher light transmittance and larger viewing angle, the lamp groove 3 is arranged at the center of the front surface of the PCB 1, and the lamp groove 3 is positioned at one side opposite to the two hard boards 2.

When the LED transparent screen is used, the lamp panel is divided into two parts, the first part is a flexible PCB (printed Circuit Board) 1, the second part is two epoxy resin hard boards 2 with the same FR-4 grade, which play a role in direct insertion and flame retardance, the two hard boards 2 are attached to the flexible board during board manufacturing, the edges of the two hard boards are aligned, the position of a middle lamp is reserved, a jig is manufactured according to the same horizontal plane process, single-sided mounting is carried out, the mounting is completed, the LED lamp is folded on the basis of the line of the LED lamp, so that a side-lighting front-mounting lamp bar is formed, the front-lighting LED transparent screen is provided, the lamp panel consists of a flexible double-sided board with a circuit and two hard boards 2 for supporting, compared with eight-sided boards and even four-sided boards, the cost is much lower, and the flexible board can be folded, so that the width of only one lamp can be seen on the display surface, the light transmittance is not influenced, the width of the flexible circuit board can be widened on the basis, and the over-current capability is increased, promote and show luminance, what this board was taken is positive luminous LED lamp, LED lamp light emitting area is not parallel with the PCB board, the condition of sheltering from can not appear, so watch the angle and can reach-120 to 120, thereby it still compromises higher luminousness and bigger viewing angle to make the LED display screen reach the time of hi-lite, and this two-layer board does not have pressfitting technology, the expend with heat and contract with cold phenomenon that the in use appears is little to the via hole influence, therefore stability is strong, and paster technology and paster tool are simple, paster one shot forming, do not need many times paster, paster components and parts all are in the coplanar, so do not need the complicated paster tool of preparation.

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 positive luminous LED transparent screen, includes PCB circuit board (1), its characterized in that: hard plates (2) are bonded to the top and the bottom of the front face of the PCB (1), and a lamp groove (3) is formed in the center of the front face of the PCB (1).

2. The positive-emitting LED transparent screen as claimed in claim 1, wherein: the PCB circuit board (1) is a flexible double-sided board.

3. The positive-emitting LED transparent screen as claimed in claim 1, wherein: the two hard boards (2) are arranged in an up-and-down symmetrical mode by taking the center line of the front face of the PCB (1) as a symmetry axis.

4. The positive light-emitting LED transparent screen as claimed in claim 1, wherein: the outer edges of the two hard boards (2) are aligned with the edge of the PCB (1).

5. The positive-emitting LED transparent screen as claimed in claim 1, wherein: the two hard boards (2) are both made of FR-4 grade epoxy resin boards.

6. The positive-emitting LED transparent screen as claimed in claim 1, wherein: the lamp trough (3) is positioned at one side opposite to the two hard plates (2).