Mini LED display module

Abstract

The utility model discloses a Mini LED display module which comprises a back plate, a light-emitting plate and a diffusion plate, the light-emitting plate and the diffusion plate are installed on the back plate, the light-emitting plate is located between the back plate and the diffusion plate, the light-emitting plate comprises a circuit board and a plurality of LED lamp beads connected to the circuit board, and the LED lamp beads are arranged on the circuit board. Light emitted by the LED lamp beads penetrates through the diffusion plate and forms diffused light, a semi-reflecting and semi-transmitting film is arranged on the side, close to the LED lamp beads, of the diffusion plate, and a reflecting film is further arranged on the side, close to the diffusion plate, of the circuit board. According to the utility model, the brightness of the area deviating from the center of the LED lamp bead can be increased, the formation of a dark area is avoided, and the display effect is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of displays, and in particular to a Mini LED display module. Background Art

[0002] Mini LED technology changes the surface light source of traditional LCD into a point light source with zoned light control, and uses more micro LED lamp beads as the light source, thereby greatly improving the brightness and contrast of the display.

[0003] Specifically, Mini LED backlights feature zoned light control, enabling better contrast and offering significant advantages over full-zone backlights. The more zones, the better the display, but this also increases the number of LEDs and other supporting electronic components, leading to higher costs.

[0004] However, in order to reduce costs, the number of LED lamp beads needs to be reduced, which means that the spacing between the LED lamp beads will increase. Since LED lamp beads are point light sources, the light emission has an angle, and the area farther away from the center of the LED lamp bead is darker. Therefore, the increase in the spacing of LED lamp beads will make the part of the area between two adjacent LED lamp beads darker, forming a dark area, which greatly affects the display effect. Utility Model Content

[0005] In order to overcome the shortcomings of the existing technology, the utility model provides a Mini LED display module, which can increase the brightness of the area deviating from the center of the LED lamp bead, avoid the formation of dark areas, and greatly improve the display effect.

[0006] The technical solution adopted by the utility model to solve its technical problems is:

[0007] A Mini LED display module includes a backplate, a light-emitting panel mounted on the backplate, and a diffuser panel. The light-emitting panel is located between the backplate and the diffuser panel. The light-emitting panel includes a circuit board and multiple LED lamp beads connected to the circuit board. The light emitted by the LED lamp beads passes through the diffuser panel and forms diffused light. A semi-reflective and semi-transparent film is provided on the diffuser panel. A reflective film is also provided on the side of the circuit board close to the diffuser panel.

[0008] As a further improvement of the above technical solution, a support member is provided on the back plate, and the support member is used to support the diffuser plate.

[0009] As a further improvement of the above technical solution, the support member is arranged at the edge of the back plate.

[0010] As a further improvement of the above technical solution, the edge of the back plate protrudes toward one side of the diffuser plate to form the support member.

[0011] As a further improvement of the above technical solution, the reflective film is provided on the inner wall of the support member.

[0012] As a further improvement of the above technical solution, the diffusion plate and the circuit board are parallel to each other.

[0013] As a further improvement of the above technical solution, a plurality of LED lamp bead arrays are distributed on the circuit board.

[0014] As a further improvement of the above technical solution, the semi-reflective and semi-transparent membrane is located on a side of the diffuser plate close to the LED lamp beads.

[0015] As a further improvement of the above technical solution, an optical film is further provided on the side of the diffuser away from the transflective membrane.

[0016] As a further improvement of the above technical solution, there are multiple optical films.

[0017] The beneficial effect of the present invention is as follows: the present invention provides a Mini LED display module, which arranges a semi-reflective and semi-transparent film on the diffusion plate and a reflective film on the circuit board, and the light emitted by the LED lamp beads is projected onto the semi-reflective and semi-transparent film, wherein a part of the light passes through the semi-reflective and semi-transparent film, and the other part of the light is reflected at a certain angle to the reflective film on the circuit board, and is reflected onto the semi-reflective and semi-transparent film through the reflective film, so that part of the light is reflected back and forth between the semi-reflective and semi-transparent film and the reflective film, so that the area deviating from the center of the LED lamp bead also has light passing through, and the light passing through the semi-reflective and semi-transparent film forms a uniform light surface through the diffusion plate, thereby increasing the brightness of the area deviating from the center of the LED lamp bead, avoiding the formation of dark areas, and greatly improving the display effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] Figure 1 This is a schematic cross-sectional view of an embodiment of the present invention;

[0020] Figure 2 This is a light trend diagram of the present utility model.

[0021] Reference numerals: 100 - back plate, 110 - light-emitting plate, 120 - diffusion plate, 130 - circuit board, 140 - LED lamp beads, 150 - semi-reflective and semi-transmissive film, 160 - reflective film, 170 - support member, 180 - optical film. DETAILED DESCRIPTION

[0022] The following will clearly and completely describe the concept, specific structure and technical effects of the present invention in combination with the embodiments and drawings, so as to fully understand the purpose, characteristics and effects of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, other embodiments obtained by technical personnel in this field without creative work are within the scope of protection of the present invention. In addition, all the connection / connection relationships involved in the patent do not refer to the direct connection of components, but refer to the fact that a better connection structure can be formed by adding or reducing connection accessories according to the specific implementation situation. The various technical features in the creation of the present invention can be combined interactively without conflicting with each other.

[0023] Reference Figure 1 and Figure 2 A Mini LED display module provided in an example of the present invention includes a back panel 100, a light-emitting panel 110 and a diffusion panel 120 installed on the back panel 100. The light-emitting panel 110 is located between the back panel 100 and the diffusion panel 120. The light-emitting panel 110 includes a circuit board 130 and a plurality of LED lamp beads 140 connected to the circuit board 130. The light emitted by the LED lamp beads 140 passes through the diffusion panel 120 and forms diffused light. A semi-reflective and semi-transparent film 150 is provided on the diffusion panel 120. A reflective film 160 is also provided on the side of the circuit board 130 close to the diffusion panel 120.

[0024] It can be understood that the circuit board 130 can control multiple LED lamp beads 140, and the light emitted by the multiple LED lamp beads 140 is projected onto the semi-reflective and semi-transparent membrane 150, wherein a part of the light passes through the semi-reflective and semi-transparent membrane 150, and another part of the light is reflected at a certain angle to the reflective film 160 on the circuit board 130, and is reflected onto the semi-reflective and semi-transparent membrane 150 through the reflective film 160, so that part of the light is reflected back and forth between the semi-reflective and semi-transparent membrane 150 and the reflective film 160, so that light is also transmitted through the area deviating from the center of the LED lamp bead 140, and the light passing through the semi-reflective and semi-transparent membrane 150 passes through the diffuser 120 to form a uniform light surface, thereby increasing the brightness of the area deviating from the center of the LED lamp bead 140, avoiding the formation of dark areas, and greatly improving the display effect.

[0025] Preferably, a support member 170 is provided on the back plate 100 , and the support member 170 is used to support and fix the diffuser plate 120 , thereby facilitating the installation of the diffuser plate 120 .

[0026] Preferably, the support member 170 is disposed at the edge of the back plate 100 to prevent the support member 170 from blocking the light emitted by the LED lamp beads 140 and to avoid the formation of dark areas.

[0027] Preferably, the edge of the back panel 100 protrudes toward one side of the diffuser 120 to form a support member 170, so that the support member 170 encloses the back panel 100, thereby preventing the light emitted by the LED lamp beads 140 from emitting from the edge of the back panel 100 and avoiding light leakage in the Mini LED display module.

[0028] Preferably, a reflective film 160 is provided on the inner wall of the support member 170. When the light emitted by the LED lamp bead 140 hits the inner wall of the support member 170, the reflective film 160 can reflect the light to other areas, thereby improving the utilization rate of the light and increasing the brightness of the area deviating from the center of the LED lamp bead 140, further improving the display effect.

[0029] Preferably, the diffuser plate 120 and the circuit board 130 are parallel to each other, which can ensure that the distance between each LED lamp bead 140 and the diffuser plate 120 is consistent, and ensure that the light emitted by each LED lamp bead 140 can be evenly distributed in the diffuser plate 120.

[0030] Preferably, a plurality of LED lamp beads 140 are distributed in an array on the circuit board 130 , so that the light emitted by the plurality of LED lamp beads 140 can be evenly distributed on the diffusion plate 120 , thereby ensuring uniform brightness of the display area.

[0031] It should be noted that different types of array distribution can be performed according to the shape of the display area. Specifically, in some rectangular display areas, multiple LED lamp beads 140 are distributed on the circuit board 130 in a rectangular array; in some circular display areas, multiple LED lamp beads 140 are distributed on the circuit board 130 in a ring array.

[0032] Preferably, the semi-reflective and semi-transparent membrane 150 is located on the side of the diffuser 120 close to the LED lamp bead 140, which can ensure that the light emitted by the LED lamp bead 140 first hits the semi-reflective and semi-transparent membrane 150, and the light passing through the semi-reflective and semi-transparent membrane 150 is then emitted through the diffuser 120.

[0033] Preferably, an optical film 180 is further provided on the side of the diffuser 120 away from the transflective film 150. The light emitted from the diffuser 120 passes through the optical film 180, which can further process the light to make it more divergent, thereby further improving the display effect.

[0034] Furthermore, there are multiple optical films 180 . It should be noted that the structures and functions of the multiple optical films 180 may be the same or different, and may be combined in different ways according to specific needs.

[0035] Specifically, the optical film 180 may include a microstructure diffusion film, a diffuse reflection film, a fluorescent film, etc. By superimposing and combining multiple optical films 180 with different microstructures, the light-emitting points of the LED lamp beads 140 can be effectively hidden and the lighting effect can be improved.

[0036] The above is a specific description of the preferred implementation of the present invention, but the invention of the present invention is not limited to the embodiments. Those skilled in the art can make various equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A Mini LED display module, characterized in that: The invention comprises a back plate (100), a light-emitting plate (110) and a diffusion plate (120) mounted on the back plate (100); the light-emitting plate (110) is located between the back plate (100) and the diffusion plate (120); the light-emitting plate (110) comprises a circuit board (130) and a plurality of LED lamp beads (140) connected to the circuit board (130); light emitted by the LED lamp beads (140) passes through the diffusion plate (120) and forms diffused light; a semi-reflective and semi-transmissive film (150) is provided on the diffusion plate (120); and a reflective film (160) is further provided on the side of the circuit board (130) close to the diffusion plate (120).

2. The Mini LED display module according to claim 1, wherein: A support member (170) is provided on the back plate (100), and the support member (170) is used to support the diffusion plate (120).

3. The MiniLED display module according to claim 2, wherein: The support member (170) is arranged at the edge of the back plate (100).

4. The MiniLED display module according to claim 3, wherein: The edge of the back plate (100) protrudes toward one side of the diffusion plate (120) to form the support member (170).

5. The MiniLED display module according to claim 4, wherein: The reflective film (160) is provided on the inner wall of the support member (170).

6. The MiniLED display module according to claim 1, wherein: The diffusion plate (120) and the circuit board (130) are parallel to each other.

7. The MiniLED display module according to claim 1, wherein: A plurality of LED lamp beads (140) are arrayed and distributed on the circuit board (130).

8. The MiniLED display module according to claim 1, wherein: The semi-reflective and semi-transparent membrane (150) is located on a side of the diffusion plate (120) close to the LED lamp bead (140).

9. The MiniLED display module according to claim 8, wherein: An optical film (180) is further provided on a side of the diffusion plate (120) away from the semi-reflective and semi-transmissive film (150).

10. The Mini LED display module according to claim 9, wherein: The number of the optical films (180) is multiple.

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