Vehicle-mounted Mini LED flexible display screen

Abstract

The utility model provides a vehicle-mounted Mini LED flexible display screen, and belongs to the field of LED display screens. The problems that an LED display screen is inconsistent in radian and low in mechanical strength are solved. According to the technical scheme, the vehicle-mounted Mini LED flexible display screen comprises a flexible circuit board and a fixing support, a plurality of LED devices are arranged on one end face of the flexible circuit board, a driving IC and a connector are arranged on the other end face of the flexible circuit board, the driving IC is electrically connected with the connector, the driving IC is electrically connected with the LED devices, and the fixing support is fixedly connected with the flexible circuit board. A plurality of protrusions are arranged on the edge of the flexible circuit board, first module locking holes are formed in the protrusions, a plurality of second module locking holes are formed in the edge of the fixing support, the first module locking holes correspond to the second module locking holes in a one-to-one mode, the middle of the fixing support is of a hollow structure, the thickness of the flexible circuit board ranges from 0.4 mm to 1.2 mm, and the thickness of the flexible circuit board ranges from 0.4 mm to 1.2 mm. A plurality of fixing devices are further arranged on the edge of the fixing support, and the fixing support is of an integrally-formed arch structure. The utility model is applied to the vehicle-mounted display screen.

Description

Technical Field

[0001] The utility model provides a vehicle-mounted Mini LED flexible display screen, belonging to the field of LED display screens. Background Art

[0002] The demand for automotive LED display technology in practical applications is getting higher and higher. The automotive LED display screen needs to be combined with the headlight assembly to adapt to the appearance of the vehicle. Therefore, the automotive LED display screen must meet different bending curvatures to adapt to the appearance of the vehicle.

[0003] To this end, multiple Mini LED modules are commonly spliced ​​together to meet the curvature requirement. However, the curvature of this splicing method is small, the curvature of the entire screen is inconsistent, and the luminous angle of the light source at the splicing point is inconsistent, which seriously affects the user experience.

[0004] Based on this, the prior art (CN 208922658 U) proposes a flexible display screen, which divides the flexible mounting layer into several small pieces by means of a first groove and a second groove arranged side by side so as to realize the flexible display screen being installed in a bent manner, and an elastic sheet layer is arranged between the flexible mounting layer and the flexible circuit board to increase the toughness of the flexible display screen. In order to match the bending of the flexible circuit board, a soft bottom shell made of rubber is simultaneously bonded using 3M glue, and a magnet is arranged on the bottom shell. The structure is complex, and if the bending angle is too large, the first groove and the second groove may be damaged, and therefore the flexible display screen cannot be applied to vehicle-mounted displays. Utility Model Content

[0005] In order to solve the technical problems of inconsistent curvature and low mechanical strength of LED display screens, the utility model proposes a vehicle-mounted Mini LED flexible display screen, the purpose of which is to improve the hardware structure and / or circuit structure of the LED display module so as to meet the consistency of the curvature of the vehicle-mounted LED display screen, realize different curvatures of the same display screen, and adapt the vehicle appearance with high precision while improving the mechanical strength.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is: a vehicle-mounted Mini LED flexible display screen, including a plurality of LED modules, wherein the LED modules include a flexible circuit board and a fixing bracket, a plurality of LED devices are arranged on one end surface of the flexible circuit board, and a driver IC and a connector are arranged on the other end surface of the flexible circuit board;

[0007] The driver IC is electrically connected to the connector, and the driver IC is electrically connected to the LED device;

[0008] The edge of the flexible circuit board is provided with a plurality of protrusions, and the protrusions are provided with first module locking holes;

[0009] The edge of the fixing bracket is provided with a plurality of second module locking holes;

[0010] The first module locking holes correspond to the second module locking holes one by one;

[0011] The middle part of the fixing bracket is a hollow structure;

[0012] The thickness of the flexible circuit board is 0.4-1.2 mm;

[0013] A plurality of fixing devices are also arranged on the edge of the fixing bracket.

[0014] The fixing bracket is an integrally formed arched structure.

[0015] Furthermore, the shape of the flexible circuit board is adapted to the shape of the fixing bracket.

[0016] Furthermore, the flexible circuit board has a square structure, a trapezoidal structure, a triangular structure or a circular structure; when the flexible circuit board has a square structure, a trapezoidal structure or a triangular structure, the length of the long side of the flexible circuit board is ≤1000mm, and when the flexible circuit board has a circular structure, the diameter of the flexible circuit board is ≤1000mm.

[0017] Furthermore, the fixing device is a locking hole.

[0018] Furthermore, the connector is arranged at the edge of the flexible circuit board.

[0019] Furthermore, the fixing bracket is provided with a groove for accommodating the connector.

[0020] Furthermore, the fixing bracket is made of aluminum, steel or plastic.

[0021] Furthermore, the outer edge line of the protrusion coincides with the outer edge line of the fixing bracket.

[0022] Furthermore, the LED device is a lamp bead with a size of 0.6*0.6mm~3.5*0.5mm, and the distance between each pair of lamp beads is 0.8~10mm.

[0023] Furthermore, the LED device is a flip chip or a face-up chip.

[0024] The beneficial effects of the present invention compared with the prior art are as follows:

[0025] 1. The flexible display screen of the utility model can be spliced, and the bending angle range can be adjusted according to the size of the flexible circuit board, so different curvatures of the same display screen can be achieved, and the mechanical strength can be ensured while adapting to the appearance of the vehicle with high precision;

[0026] 2. The dot spacing of the LED devices at the joint of the flexible display screen of the utility model is appropriately adjusted according to the specific situation, which can ensure that the arc of the flexible display screen of the utility model is smoother than that of the traditional display screen, and there will be no problem of inconsistent light angles of the light sources at the joints;

[0027] 3. The flexible display screen of the utility model can be set to any shape, and has a better experience than the display screen of the conventional circuit board, and can be applied to vehicle-mounted interactive display screens, vehicle-mounted taillights, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The utility model is further described below in conjunction with the accompanying drawings:

[0029] Figure 1 This is a front view of the flexible circuit board of the utility model;

[0030] Figure 2 This is a bottom view of the flexible circuit board of the utility model;

[0031] Figure 3 This is a rear view of the flexible circuit board of the utility model;

[0032] Figure 4 It is a schematic diagram of the structure of the spliced ​​fixed bracket after extension of the utility model;

[0033] Figure 5 This is a schematic diagram of the structure of the fixed bracket of the utility model after splicing;

[0034] Figure 6 It is a schematic diagram of the structure of the utility model;

[0035] In the figure: 1 is an LED device, 2 is a flexible circuit board, 3 is a first module locking hole, 4 is a connector, 5 is a driver IC, 6 is a fixing bracket, 7 is a hollow structure, 8 is a fixing device, and 9 is a second module locking hole. DETAILED DESCRIPTION

[0036] In the present invention, unless otherwise specified, the directional words used, such as "up, down, top, bottom", usually refer to the directions shown in the drawings, or to the components themselves in the vertical, perpendicular or gravity directions; similarly, for ease of understanding and description, "inside and outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directional words are not used to limit the present invention.

[0037] like Figures 1 to 6 As shown, the utility model provides a vehicle-mounted Mini LED flexible display screen, including a plurality of LED modules, the LED modules include a flexible circuit board 2 and a fixed bracket 6, one end surface of the flexible circuit board 2 is provided with a plurality of LED devices 1, and the other end surface of the flexible circuit board 2 is provided with a driving IC chip 5 and a connector 4.

[0038] The LED device 1 is a lamp bead with a size of 0.6*0.6mm~3.5*0.5mm using SMD packaging, and the dot spacing between two lamp beads is 0.8~10mm; the LED device 1 can also be a flip chip or a face-up chip of RGB full color, single red, single white, single yellow, etc. using COB packaging.

[0039] The driver IC chip 5 is electrically connected to the connector 4 , and the driver IC chip 5 is electrically connected to the LED device 1 .

[0040] Several protrusions are provided on the edge of the flexible circuit board 2, and the protrusions are provided with first module locking holes 3. In this embodiment, the flexible circuit board 2 is a square structure, and the protrusions are located on two non-adjacent edges of the flexible circuit board 2. Four protrusions are evenly distributed on each edge, and each protrusion is penetrated by a first module locking hole 3. Those skilled in the art can also set the number of protrusions and the number of first module locking holes 3 set on each protrusion according to actual conditions. The setting of the protrusions can ensure that the flexible circuit board 2 is fixed on the fixing bracket 6 while maximizing the laying area of ​​the LED device 1, thereby improving the utilization rate of the flexible circuit board 2.

[0041] The fixing bracket 6 is an integrally formed arch structure, and a plurality of second module locking holes 9 are provided on the edge of the fixing bracket 6. The first module locking holes 3 correspond to the second module locking holes 9 one by one, and the flexible circuit board 2 is fixed to the fixing bracket 6 through the first module locking holes 3 and the second module locking holes 9.

[0042] The middle part of the fixed bracket 6 is a hollow structure 7. The hollow structure 7 in this embodiment is square and is used to accommodate electronic components such as the driver IC chip 5, the capacitance and resistance device, and the signal and power connector 4 mounted on the flexible circuit board 2, so as to avoid damage to the electronic components caused by squeezing when the flexible display screen of the utility model is bent, and can achieve a good heat dissipation effect. The shape of the hollow structure 7 of the fixed bracket 6 can also be other shapes, as long as it can accommodate the electronic components mounted on the flexible circuit board 2. In actual applications, under the condition of meeting the electrical performance and mechanical performance of the display screen, the area of ​​the fixed bracket 6 occupied by the hollow structure 7 is as large as possible.

[0043] The shape of the flexible circuit board 2 can also be set to a regular shape such as a circle, a trapezoid, a triangle, or other irregular shapes according to the needs of the user. The shape of the fixed bracket 6 after extension is consistent with the shape of the flexible circuit board 2. Therefore, the flexible display screen of the utility model can be set to any shape, and the display screen experience effect is better than that of a conventional circuit board, and can be applied to vehicle-mounted interactive display screens, vehicle-mounted taillights, etc.

[0044] The thickness of the flexible circuit board 2 is 0.4-1.2 mm. When the shape of the flexible circuit board 2 is a square, a trapezoid or a triangle, the length of the long side of the flexible circuit board 2 is ≤1000 mm. When the shape of the flexible circuit board 2 is a circle, the diameter of the flexible circuit board 2 is ≤1000 mm. When the length or diameter of the long side of the flexible circuit board 2 is 1000 mm, the bending angle of the flexible display screen of the utility model is ≤90°. When the bending angle is met, a thicker flexible circuit board 2 is preferred.

[0045] A plurality of fixing devices 8 are also provided on two non-adjacent edges of the fixing bracket 6. In this embodiment, the fixing devices 8 are U-shaped locking holes, and six U-shaped locking holes are evenly distributed on each edge. The fixing devices 8 can also be round holes, square holes or other structures, as long as the fixing bracket 6 can be positioned to facilitate fixing the flexible circuit board 2 on the fixing bracket 6.

[0046] The material of the fixing bracket 6 can be aluminum, steel, plastic, etc., which can be selected according to the needs of those skilled in the art. The bending angle of the fixing bracket 6 can be set according to the needs of the user, but must meet the bending angle of the flexible circuit board 2.

[0047] A connection device may be provided at the joints of the two fixed brackets 6 to fix them, or the two fixed brackets 6 may be directly joined without a connection device, and a gap is allowed at the joints of the two fixed brackets 6. In this embodiment, three flexible circuit boards 2 of the same size are sequentially spliced ​​together through the fixed brackets 6, and the dot pitch of the LED device 1 at the joint can be appropriately adjusted to adjust the light-emitting angle of the LED device 1 at the joint, thereby ensuring the curvature of the display screen and improving the user experience.

[0048] The display screen of the utility model can be spliced ​​by several LED modules. The bending angle range of the display screen is different for different sizes of flexible circuit boards; the curvatures of multiple LED modules can also be different, so flexible display screens with different bending states or display screens with different curvatures of the same display screen can be realized, which can adapt to the appearance of the vehicle with high precision while ensuring mechanical strength. The display screen in this embodiment is spliced ​​by three LED modules with the same curvature.

[0049] Regarding the specific structure of the utility model, it should be explained that the connection relationship between the various component modules adopted in the utility model is definite and feasible. Except for special instructions in the embodiments, the specific connection relationship can bring corresponding technical effects and solve the technical problems raised by the utility model without relying on the execution of corresponding software programs. The components, modules, models of specific components and the connection methods between each other appearing in the utility model, as well as the conventional use methods and expected technical effects brought about by the above-mentioned technical features, except for specific instructions, all belong to the disclosed contents in patents, journal articles, technical manuals, technical dictionaries, and textbooks that can be obtained by technical personnel in this field before the application date, or belong to the existing technologies such as conventional technologies and common knowledge in this field, and there is no need to elaborate, so that the technical solution provided in this case is clear, complete and feasible, and the corresponding physical products can be reproduced or obtained according to the technical means.

[0050] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A vehicle-mounted Mini LED flexible display screen, characterized in that: Comprising a plurality of LED modules, the LED modules comprising a flexible circuit board (2) and a fixing bracket (6), a plurality of LED devices (1) being arranged on one end surface of the flexible circuit board (2), and a driver IC and a connector (4) being arranged on the other end surface of the flexible circuit board (2); The driver IC is electrically connected to the connector (4), and the driver IC is electrically connected to the LED device (1); The edge of the flexible circuit board (2) is provided with a plurality of protrusions, and the protrusions are provided with first module locking holes (3); The edge of the fixing bracket (6) is provided with a plurality of second module locking holes (9); The first module locking hole (3) corresponds to the second module locking hole (9) one by one; The middle part of the fixing bracket (6) is a hollow structure (7); The thickness of the flexible circuit board (2) is 0.4-1.2 mm; A plurality of fixing devices (8) are also provided on the edge of the fixing bracket (6); The fixing bracket (6) is an integrally formed arched structure.

2. The vehicle-mounted Mini LED flexible display according to claim 1, characterized in that: The shape of the flexible circuit board (2) is compatible with the shape of the fixing bracket (6).

3. The vehicle-mounted Mini LED flexible display according to claim 1, characterized in that: The flexible circuit board (2) is of a square structure, a trapezoidal structure, a triangular structure, or a circular structure; when the flexible circuit board (2) is of a square structure, a trapezoidal structure, or a triangular structure, the length of the long side of the flexible circuit board (2) is ≤1000 mm; when the flexible circuit board (2) is of a circular structure, the diameter of the flexible circuit board (2) is ≤1000 mm.

4. The vehicle-mounted Mini LED flexible display according to claim 1, characterized in that: The fixing device (8) is a locking hole.

5. The vehicle-mounted Mini LED flexible display according to claim 1, characterized in that: The connector (4) is arranged on the edge of the flexible circuit board (2).

6. The vehicle-mounted Mini LED flexible display according to claim 1, characterized in that: The fixing bracket (6) is provided with a groove for accommodating the connector (4).

7. The vehicle-mounted Mini LED flexible display according to claim 1, characterized in that: The material of the fixing bracket (6) is aluminum, steel or plastic.

8. The vehicle-mounted Mini LED flexible display according to claim 1, characterized in that: The outer edge line of the protrusion coincides with the outer edge line of the fixing bracket (6).

9. The vehicle-mounted Mini LED flexible display according to claim 1, characterized in that: The LED device (1) is a lamp bead with a size of 0.6*0.6mm~3.5*0.5mm, and the distance between two lamp beads is 0.8~10mm.

10. The vehicle-mounted Mini LED flexible display according to claim 1, characterized in that: The LED device (1) is a flip chip or a face-up chip.

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