Multi-component bendable soft COB (Chip On Board) cylindrical display screen

Abstract

The utility model discloses a multi-component bendable soft COB (Chip On Board) cylindrical display screen, which comprises a cylindrical mounting framework and a plurality of groups of COB display modules, and the plurality of groups of COB display modules are fitted and mounted on the cylindrical surface of the mounting framework according to a preset bending angle to form a display area; a shell for accommodating the main control board is further arranged at the top of the mounting framework, and the main control board is electrically connected with the COB display modules; the COB display modules are assembled on the mounting framework, any two adjacent COB display modules are seamlessly connected to form a cylindrical display surface, the content of the display screen can be watched at the circumferential angle of the display screen in the putting and using process, and due to the fact that no obvious physical separation structure exists, the display effect is better; and the watch of people can be more attracted visually.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of COB display module, especially to a multi-component bendable soft COB cylindrical display screen. BACKGROUND

[0002] The COB display module is densely provided with a plurality of LED light emitting chips on the circuit board, and the upper surface is filled with glue, and the LED light emitting chips are sealed by the glue layer. Compared with the LED display module made by setting LED lamp beads on the circuit board, it has high reliability, low cost, easy to realize small pitch, large viewing angle, wear resistance, impact resistance, easy to clean, strong heat dissipation and many other advantages.

[0003] In the prior art, the advertising display device with multi-face display can be observed from multiple angles, such as the utility model patent with Chinese application number CN202420451252.5; in the above-mentioned scheme, there is still a large physical structure between the multiple display screens, and the display effect is general; therefore, there is an urgent need for a display screen with a more reasonable structure to fully utilize the advantages of COB display module to solve the problems and disadvantages of the prior art. CONTENT OF THE UTILITY MODEL

[0004] In view of the technical problem that the multiple display screens in the prior art are still spaced apart by a large physical structure and the display effect is general, the present application provides a solution.

[0005] To achieve the above-mentioned purpose, the present application provides a multi-component bendable soft COB cylindrical display screen, which comprises a mounting skeleton in the shape of a cylinder and a plurality of COB display modules. The plurality of COB display modules are attached to the cylindrical surface of the mounting skeleton according to a predetermined bending angle to form a display area. The top of the mounting skeleton is also provided with a shell accommodating a main control board, and the main control board is electrically connected to the plurality of COB display modules.

[0006] As an improved scheme of the present application, the mounting skeleton is also provided with a support at the end away from the shell, which forms a placing end.

[0007] As an improved scheme of the present application, the display module comprises:

[0008] A flexible substrate, a first surface of the flexible substrate forms a plurality of LED chip matrices;

[0009] A black layer, the black layer has a first part covering the LED chip matrix, and a second part filling the first gap formed between the plurality of LED chip matrices;

[0010] A transparent film, the transparent film covers the surface of the first part.

[0011] As an improved scheme of the present application, the LED chip matrix is connected to the first surface in an overhanging manner by a pin to form a second gap; a transparent gel layer is further included, which has a third part filling the second gap and a fourth part on the first gap after solidification; the fourth part is connected to the second part.

[0012] As an improved scheme of the present application, the first part and the transparent film together form a layered structure which is 0.2 μm higher than the plane formed by the surface of the LED chip matrix.

[0013] As an improved scheme of the present application, the thickness of the flexible substrate is less than 2.0 mm.

[0014] As an improved scheme of the present application, the second surface of the flexible substrate is further provided with a transmission serial port and a data interface; any data interface is electrically connected to the main control board; two adjacent flexible substrates are electrically connected through the transmission serial port.

[0015] The soft COB cylindrical display screen with multiple components provided by the present application has the following beneficial effects compared with the prior art: the COB display modules are assembled on the mounting framework, seamless connection of any two adjacent COB display modules is achieved, a cylindrical display surface is formed, the content of the display screen can be viewed in the circumferential angle of the display screen during use, the display effect is better due to the absence of obvious physical separation structure, and the visual effect can more attract people's attention. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The utility model discloses a three -dimensional;

[0017] Figure 2 The utility model discloses an installation framework schematic view;

[0018] Figure 3 The utility model discloses a first gap and second gap schematic view;

[0019] Figure 4 The utility model discloses a COB display module structure schematic view.

[0020] The main component symbol is explained as follows:

[0021] 100, COB display module; 200, shell; 300, support; 400, mounting framework;

[0022] 1, flexible substrate; 2, LED chip matrix 2; 21, pin; 3, black layer; 31, first part;

[0023] 32, second part; 4, transparent film; 5, transparent gel layer; 51, third part; 52, fourth part;

[0024] a, first gap; b, second gap. DETAILED DESCRIPTION

[0025] In order to more clearly express the utility model, the utility model is further described below in combination with the drawings.

[0026] In the following description, the example details are given in order to provide a more in-depth understanding of the utility model. Obviously, the described embodiments are only a part of the embodiments of the utility model, not all embodiments. It should be understood that the described specific embodiments are only used to explain the utility model, and are not used to limit the utility model.

[0027] It should be understood that when the terms "contain" and / or "include" are used in the specification, it means that the features, whole, steps, operations, elements or components exist, but do not exclude the existence or addition of one or more other features, whole, steps, operations, elements, components or their combinations.

[0028] In view of the technical problems that there is still a large physical structure interval between multiple display screens in the prior art, and the display effect is general, the present application provides a multi-component bendable soft COB cylindrical display screen, please refer to the accompanying Figure 1 to the accompanying Figure 4 , including mounting skeleton 400 in the form of a cylindrical profile and multiple COB display modules 100, multiple COB display modules 100 are attached to the cylindrical surface of mounting skeleton 400 according to a predetermined bending angle to form a display area; the top of mounting skeleton 400 is also provided with a shell 200 accommodating a main control board, and the main control board is electrically connected to multiple COB display modules 100;

[0029] By assembling COB display modules 100 on mounting skeleton 400, seamless connection of any two adjacent COB display modules 100, forming a cylindrical display surface, in the process of putting into use, the content of the display screen can be watched in the circumferential angle of the display screen, due to the absence of obvious physical separation structure, the display effect is better, and the visual effect can attract people's attention more.

[0030] In the improved embodiment, the end of mounting skeleton 400 away from shell 200 is also provided with a support 300, which forms a placing end, and the display screen can be conveniently placed on the ground by adding the support 300, which has better convenience for putting into use.

[0031] In a specific scheme, the display module 100 comprises the flexible substrate 1, the black layer 3 and the transparent film 4; in a specific structure, the first surface of the flexible substrate 1 is formed with a plurality of groups of LED chip matrices 2; the black layer 3 has a first part 31 covering the LED chip matrices 2, and a second part 32 filling the first gap a formed between the plurality of groups of LED chip matrices 2; the transparent film 4 covers the surface of the first part 31;

[0032] Through the cooperation of the first part 31 and the second part 32 of the black layer 3, the surface color of the flexible substrate 1 can be changed, and the obtained module also has the ability of enhanced stretching, so that the flexible substrate 1 continues to retain the bending ability, which is convenient for application in various bending demand use scenarios; the transparent film 4 can cover and protect the LED chip matrix 2 and the first part 31, and will not affect the bendable ability of the display module.

[0033] In a further scheme, the LED chip matrix 2 is connected to the first surface by the pin 21 to form a second gap; further comprising a transparent gel layer 5, which has a third part 51 filling the second gap and a fourth part 52 located on the first gap after curing; the fourth part 52 is connected with the second part 32; the transparent gel layer plays a role in reinforcing the LED chip matrix 2 as a whole; specifically, the third part 51 fills in the second gap, which can protect the LED chip matrix 2 from being damaged even in the case of repeated bending, so that the LED chip matrix 2 can be fixed at the expected position and restored, and the third part 51 can be tightly connected with the second part 32 to ensure that the LED chip does not dislocate, and the black layer 3 is more firm.

[0034] In this embodiment, the layered structure formed by the first part 31 and the transparent film 4 is 0.2 μm higher than the plane formed by the surface of the LED chip matrix 2; it is not difficult to understand that if the thickness of the transparent film 4 and the first part 31 is higher than 0.2 μm, the color development effect will be poor, which cannot take advantage of the color development of the LED chip matrix 2, and if the thickness of the transparent film 4 is less than 0.2 μm, the protection performance will be reduced, which cannot effectively protect the first part 31; it can be seen that under the thickness setting of 0.2 μm, both wear-resistant protection and color development quality can be achieved.

[0035] In this embodiment, the thickness of the flexible substrate 1 is less than 2.0 mm, and the specific thickness is 0.4-1.9 mm; it is worth understanding that the smaller the thickness of the flexible substrate 1, the better the softness; in a more preferred embodiment, the thickness of the flexible substrate 1 is 0.6 mm, and under this thickness design, the flexibility parameter is more appropriate, which is convenient for bending installation.

[0036] As an improved scheme of the present application, the second surface of the flexible substrate is further provided with a transmission serial port and a data interface; any data interface is electrically connected with the main control board; two adjacent flexible substrates 1 are electrically connected through the transmission serial port, and through the transmission serial port and the data interface, the coordinated work between multiple modules can be realized.

[0037] The utility model has the advantages of:

[0038] 1. By assembling the COB display module on the mounting framework, the seamless connection of any two adjacent COB display modules, the cylindrical display surface is formed, the content of the display screen can be watched in the circumferential angle of the display screen in the process of putting into use, the display effect is better due to no obvious physical separation structure, and the visual attention of people can be more attracted;

[0039] 2. The first part and the second part of the black layer are matched, the surface color of the flexible substrate can be changed, the obtained module has the enhanced stretching capacity, the flexible substrate still has the bending capacity, and the module is applied to various bending scenes; the transparent film can cover and protect the LED chip matrix and the first part, and will not affect the bending capacity of the display module.

[0040] The above disclosure is only a few specific embodiments of the utility model, but the utility model is not limited to this, any change that can be thought of by any person skilled in the art should fall within the protection scope of the utility model.

Claims

1. A multi-component flexible COB cylindrical display screen, characterized in that, The device includes a cylindrical mounting frame and multiple COB display modules. The multiple COB display modules are mounted on the cylindrical surface of the mounting frame at a preset bending angle to form a display area. The top of the mounting frame is also provided with a housing for accommodating the main control board, which is electrically connected to the multiple COB display modules.

2. The multi-component flexible COB cylindrical display screen according to claim 1, characterized in that, The mounting frame is further provided with a bracket at one end away from the housing, the bracket forming a placement end.

3. The multi-component flexible COB cylindrical display screen according to claim 1, characterized in that, The display module includes: A flexible substrate, wherein a plurality of LED chip matrices are formed on the first surface of the flexible substrate; A black layer having a first portion covering the LED chip matrix and a second portion filling the first gaps formed between the multiple sets of LED chip matrices; A transparent film covering the surface of the first portion.

4. The multi-component flexible COB cylindrical display screen according to claim 3, characterized in that, The LED chip matrix is ​​connected to the first surface via pins to form a second gap; it also includes a transparent colloid layer, which, after curing, has a third portion filling the second gap and a fourth portion located on the first gap; the fourth portion is connected to the second portion.

5. The multi-component flexible COB cylindrical display screen according to claim 4, characterized in that, The layered structure formed by the first part and the transparent film is 0.2 μm higher than the plane formed by the surface of the LED chip matrix.

6. The multi-component flexible COB cylindrical display screen according to claim 5, characterized in that, The thickness of the flexible substrate is less than 2.0 mm.

7. The multi-component flexible COB cylindrical display screen according to claim 6, characterized in that, The second surface of the flexible substrate is also provided with a serial port and a data interface; any one of the data interfaces is electrically connected to the main control board; two adjacent flexible substrates are electrically connected through the serial port.

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