COB holographic transparent display screen

Abstract

The utility model relates to display technical field especially relates to a COB holographic transparent display screen, include: PCB hollow reticulation circuit substrate is by hollow reticulation PCB circuit board, display area and set up in the circuit layer of reality area, a plurality of LED light emitting unit, fixedly set up on the first surface of PCB hollow reticulation circuit substrate and be located in the display area, with Circuit layer electric connection. The utility model discloses, the light-emitting body of the device through improving own weight, the portable structure of easy cutting and tailoring installation, the energy-saving effect of not heating, avoid causing the injury of engineering personnel, prevent the holographic screen unit body from producing knock when dismounting transfer transportation, improve the use effect life of screen unit body, because the back of the screen body is smooth and flat, the positioning assembly of the neat cutting of the four circumferences of side, the installation use effect is very friendly, makes the project site mansion glass curtain wall, stair glass handrail, glass show window etc. Project use is better and more excellent.

Description

Technical Field

[0001] This utility model relates to the field of display technology, and in particular to a COB holographic transparent display screen. Background Technology

[0002] LED displays, as a typical application of LED light-emitting devices, have been widely used in various usage environments. In most existing LED display applications, the LED display body is non-transparent, meaning that the LED light-emitting devices can only be displayed on one side, and the LED display will also block light when not displaying, and can transmit light directly when not displaying. COB holographic transparent displays have emerged to address these issues.

[0003] In COB holographic transparent displays, the substrate is a PCB with a hollowed-out mesh. After setting LED light-emitting devices, the chips do not generate heat and are small in size with an ultra-wide viewing angle, thus achieving both content display and transparent display effects. It is widely used in glass curtain walls, glass railings, glass windows, interior decoration, and automotive displays.

[0004] In related technologies, transparent displays are mostly made based on flexible substrates. Therefore, they are mostly installed on carriers such as glass curtain walls and transparent doors and windows. For example, they are directly pasted on glass curtain walls. The display itself is difficult to use on its own, and its position is difficult to adjust after installation. This limits the application scenarios of transparent displays to a certain extent.

[0005] Therefore, reducing the dependence of COB holographic transparent displays on carriers and expanding their application scenarios are urgent problems that need to be solved.

[0006] Therefore, a COB holographic transparent display screen is proposed to solve the problems mentioned above. Utility Model Content

[0007] To address the shortcomings of existing technologies, this invention provides a COB holographic transparent display screen, which can solve the problem that transparent displays are difficult to use alone and have limited application scenarios in existing technologies.

[0008] To achieve the above objectives, this utility model provides the following technical solution: including:

[0009] A PCB with a cutout mesh circuit board consists of a cutout mesh PCB circuit board, a display area, and a circuit layer set in the actual area;

[0010] Several LED light-emitting units are fixedly disposed on the first surface of the PCB hollow mesh circuit board and located in the display area, and are electrically connected to the circuit layer.

[0011] Preferably, the perforated mesh size of the PCB circuit board is 6mm.

[0012] Preferably, the thickness of the hollowed-out mesh PCB circuit board is 0.8mm.

[0013] Preferably, the hollowed-out mesh PCB circuit board has a plurality of wafer chips disposed thereon, and two adjacent wafer chips are distributed at equal intervals.

[0014] Preferably, the wafer chips are assembled to form a wafer lamp core, and the length x width of the wafer lamp core is (387±25)×(131±25)μm2.

[0015] Preferably, the thickness of the lamp beads inside the wafer lamp core is (110±15) μm.

[0016] Compared with the prior art, this utility model provides a COB holographic transparent display screen, which has the following beneficial effects:

[0017] 1. This device features a lightweight structure that is easy to cut and install, and an energy-saving effect where the light-emitting element does not generate heat.

[0018] 2. To avoid injury to engineering personnel and prevent the holographic screen unit from being bumped or knocked during disassembly, assembly, transfer, and transportation, thereby improving the service life of the screen unit.

[0019] 3. No extensive modifications to the on-site installation location are required during construction, reducing project time and workload costs, and installation is convenient and quick.

[0020] 4. Due to the smooth and flat back of the screen and the ability to be neatly cut and assembled on all four sides, it is very user-friendly for installation and use, making it better and more suitable for projects such as glass curtain walls of buildings, glass handrails of stairs, and glass windows on construction sites. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the wafer chip structure of this utility model;

[0022] Figure 2 This is a detailed drawing of the hollowed-out mesh PCB circuit board and the crystal light-emitting element of this utility model;

[0023] Figure 3 This is a topology diagram of the COB holographic engineering display system of this utility model;

[0024] Figure 4 This is a partial view of the light-emitting wafer chip array of this utility model. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Example:

[0027] Please see Figure 1 - Figure 4 A COB holographic transparent display screen in this embodiment includes:

[0028] A PCB with a cutout mesh circuit board consists of a cutout mesh PCB circuit board, a display area, and a circuit layer set in the actual area;

[0029] Several LED light-emitting units are fixedly disposed on the first surface of the PCB hollow mesh circuit board and located in the display area, and are electrically connected to the circuit layer;

[0030] The internal perforation mesh size of the perforated PCB circuit board is 6mm.

[0031] The thickness of the hollowed-out mesh PCB circuit board is 0.8mm;

[0032] A number of wafer chips are set on a hollow mesh PCB circuit board, and adjacent wafer chips are distributed at equal intervals.

[0033] The wafer chips are assembled to form a wafer lamp core, and the length x width of the wafer lamp core is (387±25)×(131±25)μm2;

[0034] The thickness of the LED chip inside the wafer lamp core is (110±15) μm;

[0035] First, the wafer chips used in this COB holographic transparent display are surface-mount packaged. In actual circuit board surface-mount applications, COB die bonding process is adopted, which is convenient to install without wire bonding and does not occupy the space of the surface cut-out mesh PCB circuit board.

[0036] Secondly, the COB holographic transparent display unit module is a COB holographic transparent display module unit that uses LED wafer chips to emit light instead of conventionally packaged LED lamp beads, as well as splicing and combining COB holographic transparent displays.

[0037] Because the light-emitting element is a wafer chip with no LED beads, it operates at a low temperature. It is a new and practical product that is unprecedented in the field of optoelectronic COB holographic transparent display screens, solving a major pain point of serious overheating in similar products in the past.

[0038] The wafer lamp core generates very little heat, so the entire display area surface is completely free of heat. Due to the special nature of the light-emitting element, it generates almost no heat. Therefore, this type of wafer screen can reduce energy consumption by 70%, enabling projects using this product to achieve the national call for energy conservation.

[0039] This COB holographic transparent display module product is hereinafter referred to as COB holographic transparent display;

[0040] This COB holographic transparent display screen is designed and manufactured using a PCB circuit board with a hollowed-out mesh surface. The light-emitting carrier circuit board can be slightly bent and can be flexibly cut. The sensory transparency rate can reach more than 80%. The application effect is that the whole screen is transparent, invisible, soft and flexible.

[0041] The spacing between the wafer chips on the circuit board is 3.90625mm. Compared with screens using conventional LED holographic modules, the distance between the chips can be made smaller, resulting in a smaller individual chip size, reaching (387±25) × (131±25) μm². The thickness of a single LED chip is (110±15) μm. Figure 1 As shown;

[0042] This COB holographic transparent display screen uses a hollowed-out mesh PCB circuit board with 6mm through holes, allowing for a visual transparency rate of over 80%. Figure 2 As shown, because the cutout holes are relatively large, it is easier to bend and stick the display than similar products in the past. It can also be cut to any size along the diameter of the cutout holes, which is convenient for installation and use in glass curtain walls, shop windows, stair glass handrails, and fence glass railings of high-rise buildings, shopping malls and shopping centers.

[0043] With a thickness as low as 0.8mm, the screen module is ultra-thin, reducing the product weight by 1.2Kg per square meter;

[0044] The keelless structure design allows for easy cutting and adapts to curved installation environments. It is lighter and smaller than most previous COB holographic transparent display modules, and has superior flexible bending display performance, making it easier to adapt to meet the miniaturized, integrated, and customized requirements of engineering sites.

[0045] Ultimately, this device, through its improved weight, easy-to-cut and install lightweight structure, and energy-saving effect of non-heating light-emitting elements, can provide comprehensive protection for the display unit body during the assembly and disassembly of the COB holographic transparent display screen, preventing injury to engineers, preventing bumps and knocks during disassembly, assembly, transfer and transportation, and extending the service life of the display unit body. Moreover, it does not require extensive manual modification of the on-site installation location during construction, reducing project cycle and workload costs, and making installation convenient and quick.

[0046] Meanwhile, the smooth and flat back of the screen and the neat cutting and assembly of the sides make it very user-friendly for installation and use, making it better and more suitable for projects such as building glass curtain walls, stair glass handrails, and glass display windows.

[0047] The installation, connection, or setting methods disclosed in this embodiment are all common mechanical connection methods. As long as they can achieve their beneficial effects, they can be implemented. Therefore, this embodiment will not elaborate on their specific structural composition and working principle.

[0048] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A COB holographic transparent display screen, characterized in that: include: A PCB with a cutout mesh circuit board consists of a cutout mesh PCB circuit board, a display area, and a circuit layer set in the actual area; A number of LED light-emitting units are fixedly disposed on the first surface of the PCB hollow mesh circuit board and located in the display area, and electrically connected to the circuit layer. A number of wafer chips are disposed on the hollow mesh PCB circuit board, and two adjacent wafer chips are distributed at equal intervals. The wafer chips are combined to form a wafer lamp core, and the length x width of the wafer lamp core is (387±25)×(131±25)μm2.

2. The COB holographic transparent display screen according to claim 1, characterized in that: The perforated mesh PCB circuit board has a perforated mesh size of 6mm.

3. A COB holographic transparent display screen according to claim 1, characterized in that: The thickness of the hollowed-out mesh PCB circuit board is 0.8mm.

4. A COB holographic transparent display screen according to claim 1, characterized in that: The thickness of the lamp beads inside the wafer lamp core is (110±15) μm.

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