CN218630447U - Display device - Google Patents

Abstract

The utility model discloses a display device relates to and shows technical field, for solving display device problem of darkening all around. The display device comprises a display panel, a back plate, a circuit board assembly and a plurality of light-emitting pieces. The back plate is arranged opposite to the display panel, and the circuit board assembly is arranged on the back plate and is positioned at one side of the display panel; the circuit board assembly is provided with a plurality of light-emitting pieces, the light-emitting pieces are arranged on the circuit board assembly at intervals and are electrically connected with the circuit board assembly, one side of the circuit board assembly, which is adjacent to the display panel, is provided with a first mounting area and a second mounting area, and the first mounting area surrounds the second mounting area in a circle. One part of the plurality of luminous pieces is arranged in the first installation area, the other part of the plurality of luminous pieces is arranged in the second installation area, two adjacent luminous pieces are separated by a first preset distance in the first installation area, two adjacent luminous pieces are separated by a second preset distance in the second installation area, and the first preset distance is smaller than the second preset distance. The utility model is used for display image.

Description

Display device

Technical Field

The utility model relates to a show technical field, especially relate to a display device.

Background

With the continuous development of display technologies, display devices have been widely used in various aspects of life. The display device comprises a backlight module and a display panel, wherein the backlight module provides a light source for the display panel, and the display panel is used for converting the light source into a display picture. The backlight module generally includes a plurality of light emitting elements, a circuit board on which the light emitting elements are mounted, and a back plate for carrying the circuit board. In addition, these illuminators are typically sub-millimeter light emitting diodes (Mini LEDs).

In the related art, the backlight module adopting the Mini LED is generally designed to have a large inclination angle at the edge of the back plate, and the arrangement quantity of the Mini LED at the edge of the backlight module can be reduced by the design, so that the production cost of the display device is reduced, and the market competitiveness of the Mini LED display device can be improved due to the fact that the technical cost of the Mini LED is high. However, the Mini LED does not use a lens, only depends on package radiation, and has a small light divergence angle, so that the periphery of the display device is darkened, which results in poor experience of consumers for the display device adopting a large inclination design.

SUMMERY OF THE UTILITY MODEL

The utility model provides a display device for solve display device problem dark all around.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the application provides a display device, this display device includes display panel, backplate, circuit board subassembly and a plurality of illuminating part. The back plate is arranged opposite to the display panel, and the circuit board assembly is arranged on the back plate and is positioned at one side of the display panel; the circuit board assembly comprises a plurality of light-emitting pieces, a plurality of first mounting areas and a plurality of second mounting areas, wherein the light-emitting pieces are arranged on the circuit board assembly at intervals and are electrically connected with the circuit board assembly, one side of the circuit board assembly, which is close to the display panel, is provided with the first mounting areas and the second mounting areas, the first mounting areas are areas close to the edge positions of the circuit board assembly, the second mounting areas are areas close to the center positions of the circuit board assembly, and the first mounting areas surround the second mounting areas for a circle. One part of the plurality of luminous pieces is arranged in the first installation area, the other part of the plurality of luminous pieces is arranged in the second installation area, two adjacent luminous pieces are separated by a first preset distance in the first installation area, two adjacent luminous pieces are separated by a second preset distance in the second installation area, and the first preset distance is smaller than the second preset distance.

The display panel is used for displaying pictures, the circuit board assembly is used for bearing the light-emitting piece and providing power for the light-emitting piece, so that the light-emitting piece can emit light under the driving of the power supply, and the back plate is used for bearing the circuit board assembly and supporting the circuit board assembly. When the display device works, the back plate, the circuit board assembly and the display panel are sequentially connected, the circuit board assembly provides power for the light-emitting element, the light-emitting element emits light under the driving of the power, and the light is diffused to the display panel and is processed by the display panel to display a picture, so that the display function of the display panel is realized.

The light intensity distribution of the light emitted by the light emitting element is strong in the middle and weak at the periphery, so that the light emitted by one light emitting element irradiates the display panel, and an illumination area with bright middle and dark periphery can appear. In the second installation area of the circuit board assembly, light emitted by two adjacent light emitting elements irradiates the display panel to form two illumination areas, the dark parts of the two illumination areas are mutually overlapped, light superposition enables light intensity to be enhanced, more light can irradiate the dark areas of the display device, and therefore the dark areas are eliminated. When the first preset distance is smaller than the second preset distance, the adjacent light-emitting piece of the light-emitting piece at the edge of the first installation area can disperse light to one side, close to the edge, of the light-emitting piece at the edge of the first installation area to supplement the darkened area, so that more light can be dispersed to the darkened area of the display device, and the darkened area is eliminated.

Therefore, the utility model provides a pair of display device can solve display device problem dark all around.

In some embodiments of the present application, the second predetermined distance is equal to or greater than 20mm and equal to or less than 50mm.

The second preset distance is more than or equal to 20mm and less than or equal to 50mm, so that the installation quantity of the light-emitting parts can be limited, the cost is reduced, the requirement of light superposition of the dark area of the light-emitting parts is met, and the problem that the periphery of the display device is dark is solved.

In some embodiments of the present application, a ratio of the first predetermined distance to the second predetermined distance is 0.5.

The ratio of the first preset distance to the second preset distance is 0.5, so that the first preset distance is half of the second preset distance, the installation quantity of the light-emitting pieces can be limited, the cost is reduced, the effect of light superposition of the dark areas around the light-emitting pieces is guaranteed, and the problem that the periphery of the display device is dark is solved.

In some embodiments of the present application, an inner peripheral boundary of the first mounting region coincides with an outer peripheral boundary of the second mounting region.

The inner circumference boundary of the first installation area is overlapped with the outer circumference boundary of the second installation area, so that no gap exists between the first installation area and the second installation area, the distance between the luminous element close to the inner circumference boundary in the first installation area and the luminous element close to the outer circumference boundary in the second installation area is not too far, the requirement of light complementation of the darkening areas on the periphery of the luminous element can be met, and the brightness of the overlapped part is ensured.

In some embodiments of the present application, the light emitting member in the first mounting region near the inner circumferential boundary is spaced apart from the light emitting member in the second mounting region near the outer circumferential boundary by a second predetermined distance; or the light-emitting piece close to the inner periphery in the first mounting area is separated from the light-emitting piece close to the outer periphery in the second mounting area by a first preset distance.

When the light emitting piece close to the inner periphery boundary in the first installation area and the light emitting piece close to the outer periphery boundary in the second installation area are separated by a second preset distance, the dark parts in the illumination areas formed by the two light emitting pieces on the display panel can be mutually overlapped, light superposition enables light intensity to be enhanced, the dark areas are eliminated, and the display effect of the display panel is ensured. When the light-emitting piece close to the inner peripheral boundary in the first installation area and the light-emitting piece close to the outer peripheral boundary in the second installation area are separated by a first preset distance, light rays diffused by the light-emitting piece close to the outer peripheral boundary in the second installation area can shine on one side, far away from the second installation area, of the light-emitting piece close to the inner peripheral boundary in the first installation area, light rays of the edge darkening area of the display panel are enhanced, and the darkening area is eliminated.

In some embodiments of the present application, the circuit board assembly includes a plurality of circuit boards, the plurality of circuit boards are spliced together, a side surface of the circuit board adjacent to the display panel is a mounting surface, the mounting surface of at least one of the plurality of circuit boards is provided with a first mounting portion, the mounting surface of at least one of the plurality of circuit boards is provided with a second mounting portion, a plurality of the first mounting portion of at least one of the circuit boards forms the first mounting area, a plurality of the second mounting portion of at least one of the circuit boards forms the second mounting area.

The circuit board assembly is formed by splicing a plurality of circuit boards, the light-emitting pieces are installed on the installation surfaces of the circuit boards, a first installation part and/or a second installation part are/is arranged on the installation surface of at least one of the circuit boards, the distance between two adjacent light-emitting pieces in the first installation part is a first preset distance, and the distance between two adjacent light-emitting pieces in the second installation part is a second preset distance. The first mounting region is comprised of at least one first mounting portion and the second mounting region is comprised of at least one second mounting portion.

In some embodiments of the present application, a plurality of circuit boards are connected into at least one circuit board group, each circuit board group including a plurality of circuit boards connected in series in a linear direction.

A plurality of circuit boards are connected to form a circuit board group, at least one circuit board group is connected to form a circuit board assembly, the circuit boards can form a unit, and when an individual circuit board is damaged, only the damaged circuit board needs to be replaced, so that the maintenance difficulty is reduced, and the operation and maintenance cost is reduced.

In some embodiments of the present application, the mounting surface of one of the two adjacent circuit boards is provided with a first splicing edge, the mounting surface of the other of the two adjacent circuit boards is provided with a second splicing edge, the first splicing edge is spliced with the second splicing edge, the distance between the first splicing edge and the second splicing edge is a third preset distance, and the third preset distance is greater than or equal to 0.

The third is predetermine distance more than or equal to 0, makes the distance more than or equal to 0 between the two adjacent illuminating part of the first concatenation limit of neighbouring on the circuit board and the concatenation department of second concatenation limit, makes the lapped circumstances can not appear between the two adjacent circuit boards, avoids appearing the circuit board concatenation department seam unevenness and the extravagant problem of material that leads to because of the circuit board overlap joint.

In some embodiments of the present application, a minimum distance between the light emitting element on the first mounting portion and the first splicing edge is 0.5 times a difference between the first preset distance and the third preset distance; and/or the minimum distance between the light-emitting piece on the second mounting part and the second splicing edge is 0.5 times of the difference between the second preset distance and the third preset distance.

The minimum distance between the luminous piece on the first installation part and the first splicing edge is 0.5 times of the difference between the first preset distance and the third preset distance, so that the distance between two adjacent luminous pieces at the splicing position of the first splicing edge and the second splicing edge on the circuit board in the first installation area is the first preset distance and ^ is ^ or ^ is greater than or equal to

Or the minimum distance between the light-emitting piece on the second mounting part and the second splicing edge is 0.5 times of the difference between the second preset distance and the third preset distance, so that the distance between two adjacent light-emitting pieces at the splicing position of the first splicing edge and the second splicing edge adjacent to the circuit board in the second mounting area is the second preset distance.

In some embodiments of the present application, the light emitting element is a sub-millimeter light emitting diode. The sub-millimeter Light Emitting Diode has smaller particles, finer display effect and higher brightness, saves more power than an Organic Light-Emitting Diode (OLED), supports accurate dimming and does not generate the problem of uneven backlight of the LED.

Drawings

The accompanying drawings are included to provide a further understanding of the embodiments of the present invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the embodiments of the invention and not to limit the embodiments of the invention.

Fig. 1 is a schematic structural diagram of a display device according to an embodiment of the present disclosure.

Fig. 2 is a second schematic structural diagram of a display device according to an embodiment of the present disclosure.

Fig. 3 is a third schematic structural diagram of a display device according to an embodiment of the present disclosure.

Fig. 4 is a schematic view illustrating a light divergence of a light emitting element according to an embodiment of the present disclosure.

Fig. 5 is a second schematic view illustrating light divergence of the light emitting device according to the embodiment of the present application, wherein the light emitting device is located in the second mounting region.

Fig. 6 is a third schematic view illustrating light divergence of the light emitting element according to the embodiment of the present application, wherein the light emitting element is located in the first mounting region.

Fig. 7 is a circuit diagram of an active matrix driving method according to an embodiment of the present disclosure.

Fig. 8 is a fourth schematic structural diagram of a display device according to an embodiment of the present application.

Fig. 9 is a schematic structural diagram of a first circuit board according to an embodiment of the present application.

Fig. 10 is a schematic structural diagram of a second circuit board according to an embodiment of the present application.

Fig. 11 is a schematic structural diagram of a third circuit board according to an embodiment of the present application.

Fig. 12 is a fifth structural schematic view of a display device according to an embodiment of the present application.

Fig. 13 is a sixth schematic structural view of a display device according to an embodiment of the present application.

Fig. 14 is a seventh schematic structural diagram of a display device according to an embodiment of the present application.

Fig. 15 is a schematic partial structure diagram of a display device according to an embodiment of the present disclosure.

Fig. 16 is a schematic diagram of a circuit board structure according to an embodiment of the present disclosure.

Reference numerals are as follows:

a display device 1000;

a backlight module 100;

a display panel 200; a diffusion plate 300; an optical film 400; a reflective sheet 500;

a back plate 10;

a circuit board assembly 20; a first mounting area 201; the first mounting portion 2011; a second mounting area 202; a second mounting portion 2021; a circuit board 203; a mounting surface 2031; a first splice edge 2032; a second splice edge 2033; a first circuit board 2034; a second circuit board 2035; a third circuit board 2036;

a circuit board group 21;

a light emitting member 30.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that all directional indicators (such as up, down, left, right, front, back \8230;) in the embodiments of the present application are only used to explain the relative positional relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, the meaning of "a plurality" is two or more unless otherwise specified.

In the description of the present application, it should be noted that the terms "connected" and "connected" are to be construed broadly and may include, for example, a fixed connection, a detachable connection, or an integral connection unless otherwise explicitly stated or limited. The specific meaning of the above terms in this application will be understood to be a specific case for those of ordinary skill in the art. In addition, when a pipeline is described, the terms "connected" and "connected" are used in this application to have a meaning of conducting. The specific meaning is to be understood in conjunction with the context.

In the embodiments of the present application, words such as "exemplary" or "for example" are used to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" or "e.g.," is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the word "exemplary" or "such as" is intended to present relevant concepts in a concrete fashion.

The embodiment of the application provides a display device, and the display device can be a liquid crystal display screen, a liquid crystal display, a liquid crystal television lamp display device, and can also be a mobile terminal such as a mobile phone, a tablet computer, an intelligent photo album and the like.

An embodiment of the present application provides a display device 1000, as shown in fig. 1, fig. 1 is a schematic structural diagram of the display device 1000 provided in the embodiment of the present application. The display device 1000 includes a backlight module 100 and a display panel 200. The backlight module 100 is used for providing light to the display panel 200, and the display panel 200 is used for displaying images.

In some embodiments, as shown in fig. 1, in order to improve the uniformity of light and the brightness, the display apparatus 1000 may further include a diffusion plate 300, an optical film 400, and a reflection sheet 500. The diffusion plate 300, the optical film 400 and the reflection sheet 500 are located between the backlight module 100 and the display panel 200, the diffusion plate 300 is located on one side of the backlight module 100 adjacent to the display panel 200 and used for further diffusing the light emitted by the backlight module 100, so that the uniformity of the light can be improved, the reflection sheet 500 is located between the diffusion plate 300 and the backlight module 100 and used for reflecting the light reflected and scattered by the diffusion plate 300 to the diffusion plate 300 for reuse, and the light waste can be avoided. The optical film 400 is disposed on one side of the diffusion plate 300 adjacent to the display panel 200, and can process the light, so that the light reaching the display panel 200 is more uniform and has higher brightness, thereby improving the picture quality.

In the related art, the backlight module generally includes a plurality of light emitting elements, a circuit board, and a back plate, wherein the light emitting elements are mounted on the circuit board, and the back plate is used for carrying the circuit board. In addition, these illuminators are typically sub-millimeter light emitting diodes (Mini LEDs). Adopt Mini LED's backlight unit, its backplate edge is big inclination design usually, and the quantity is arranged to the Mini LED at this kind of design reducible backlight unit edge to reduce display device's manufacturing cost, can improve Mini LED display device's market competition now to the higher of Mini LED technical cost. However, the Mini LED does not use a lens, only depends on package radiation, and has a small light divergence angle, so that the periphery of the display device is dark, which results in poor experience of consumers for the display device adopting a large inclination design.

In order to solve the problem that the display device is dark all around, the application provides a display device, and the following description refers to the accompanying drawings.

As shown in fig. 2 and 3, the present application provides a display device 1000, the display device 1000 including a display panel 200, a back plate 10, a circuit board assembly 20, and a plurality of light emitting members 30. The back plate 10 is arranged opposite to the display panel 200, and the circuit board assembly 20 is arranged on the back plate 10 and is positioned at one side of the display panel 200; the plurality of light emitting members 30 are disposed on the circuit board assembly 20 at intervals and electrically connected to the circuit board assembly 20, wherein a first mounting area 201 and a second mounting area 202 are disposed on a side of the circuit board assembly 20 adjacent to the display panel 200, the first mounting area 201 is an area near an edge of the circuit board assembly 20, the second mounting area 202 is an area near a center of the circuit board assembly 20, and the first mounting area 201 surrounds a circumference of the second mounting area 202. One part of the plurality of light emitting members 30 is disposed in the first mounting region 201, and the other part of the plurality of light emitting members 30 is disposed in the second mounting region 202, wherein two adjacent light emitting members 30 are spaced apart by a first predetermined distance in the first mounting region 201, and two adjacent light emitting members 30 are spaced apart by a second predetermined distance in the second mounting region 202, and the first predetermined distance is smaller than the second predetermined distance.

The display panel 200 is used for displaying images, the circuit board assembly 20 is used for carrying the light emitting element 30 and providing power for the light emitting element 30, so that the light emitting element 30 can emit light under the driving of the power, and the back plate 10 is used for carrying the circuit board assembly 20 and supporting the circuit board assembly 20. Therefore, when the display device 1000 works, the back plate 10, the circuit board assembly 20, and the display panel 200 are sequentially connected, the circuit board assembly 20 provides power to the light emitting member 30, so that the light emitting member 30 emits light under the driving of the power, and the light is diffused to the display panel 200 and is processed by the display panel 200 to display a picture, thereby realizing the display function of the display device 1000.

As shown in fig. 4, the light intensity distribution of the light emitted from the light emitting members 30 is strong in the middle and weak in the periphery, which results in that the light emitted from one light emitting member 30 is irradiated to the display panel 200, and an illumination area having a bright portion (e.g., a in fig. 4) in the middle and a dark portion (e.g., B in fig. 4) in the periphery appears.

As shown in fig. 3 and 5, in the second mounting area 202 of the circuit board assembly 20, light emitted from two adjacent light emitting members 30 is irradiated to the display panel 200 to form two illumination areas, dark portions of the two illumination areas overlap each other, and the light intensity is increased by overlapping the light, so that more light can be irradiated to the dark portions of the illumination areas, thereby eliminating the dark portions.

As shown in fig. 3 and 6, in the first mounting region 201 of the circuit board assembly 20, the light emitting member 30 at the edge of the large-inclination backboard 10 has no light emitting member 30 at a side adjacent to the edge, which results in a darkened area at the edge of the first mounting region 201, and when the first predetermined distance is less than the second predetermined distance, the adjacent light emitting member 30 at the edge of the first mounting region 201 can disperse light to the side adjacent to the edge of the light emitting member 30 at the edge, which supplements the darkened area thereof, so that more light can be dispersed to the darkened area of the display device 1000, thereby eliminating the darkened area.

Therefore, the utility model provides a pair of display device 1000 can solve display device 1000 problem of darkening all around.

In some embodiments, the Light Emitting element 30 is a sub-millimeter Light Emitting Diode (Mini LED), which has smaller particles, finer display effect, and higher brightness, and is more power-saving than an Organic Light-Emitting Diode (OLED), and supports precise dimming without generating the problem of uneven backlight of the LED. These technical advantages may improve the display performance of the display device 1000, enhancing the affordability of the product.

In order to further improve the display performance of the display device 1000, in some embodiments, the light emitting element 30 is driven by an Active Matrix (AM) driving method. As shown in fig. 7, fig. 7 is a schematic circuit diagram of an active matrix driving method, which can individually control each light emitting device and adjust the driving current of the Mini LED around according to the subjective feeling of the user.

With reference to fig. 3, in order to limit the number of the light emitting members 30 to be mounted and reduce the cost, the dark portions of the corresponding illumination areas of two adjacent light emitting members 30 are overlapped with each other, so as to meet the requirement of light superposition of the dark areas of the light emitting members 30 and solve the problem of dark surroundings of the display device 1000, the second preset distance is greater than or equal to 20mm and less than or equal to 50mm.

Further, the ratio of the first preset distance to the second preset distance is 0.5, so that the installation number of the light-emitting members 30 can be limited, the cost is reduced, the effect of light superposition of dark areas around the light-emitting members 30 is ensured, and the problem that the periphery of the display device 1000 is dark is solved.

The inner circumference boundary of the first installation area 201 is overlapped with the outer circumference boundary of the second installation area 202, so that no gap exists between the first installation area 201 and the second installation area 202, the distance between the light-emitting piece 30 close to the inner circumference boundary in the first installation area 201 and the light-emitting piece 30 close to the outer circumference boundary in the second installation area 202 is not too far, the requirement of light complementation of dark areas around the light-emitting piece 30 can be met, and the brightness of the overlapped part is ensured.

The light emitting member 30 near the inner circumferential boundary in the first mounting region 201 is spaced apart from the light emitting member 30 near the outer circumferential boundary in the second mounting region 202 by a second predetermined distance; alternatively, the light emitting member 30 near the inner circumferential boundary in the first mounting region 201 is spaced apart from the light emitting member 30 near the outer circumferential boundary in the second mounting region 202 by a first predetermined distance.

When the light emitting members 30 near the inner peripheral boundary in the first mounting region 201 and the light emitting members 30 near the outer peripheral boundary in the second mounting region 202 are spaced by a second preset distance, the dark portions in the illumination region formed on the display panel 200 by the two light emitting members 30 can be overlapped with each other, the light intensity is enhanced by light superposition, the dark region is eliminated, and the display effect of the display panel 200 is ensured. When the light emitting member 30 near the inner peripheral boundary in the first mounting region 201 is spaced from the light emitting member 30 near the outer peripheral boundary in the second mounting region 202 by the first predetermined distance, the light emitted from the light emitting member 30 near the outer peripheral boundary in the second mounting region 202 can be irradiated to the side of the light emitting member 30 near the inner peripheral boundary in the first mounting region 201, which is far from the second mounting region 202, so as to enhance the light of the edge darkened region of the display panel 200 and eliminate the darkened region.

As shown in fig. 8, the circuit board assembly 20 includes a plurality of circuit boards 203, the circuit boards 203 are spliced together, a side surface of the circuit board 203 adjacent to the display panel 200 is a mounting surface 2031, a first mounting portion 2011 is provided on the mounting surface 2031 of at least one of the circuit boards 203, a second mounting portion 2021 is provided on the mounting surface 2031 of at least one of the circuit boards 203, the first mounting portion 2011 of at least one of the circuit boards 203 constitutes the first mounting area 201, and the second mounting portion 2021 of at least one of the circuit boards 203 constitutes the second mounting area 202.

The circuit board assembly 20 includes a plurality of circuit boards 203, and the circuit boards 203 are of three types, a first circuit board 2034, a second circuit board 2035, and a third circuit board 2036. As shown in fig. 9, only the first mounting portion 2011 is disposed on the mounting surface 2031 of the first circuit board 2034, and a distance between two adjacent light-emitting members 30 on the first circuit board 2034 is a first preset distance (D1 in fig. 9); as shown in fig. 10, the mounting surface 2031 of the second circuit board 2035 has only the second mounting portion 2021, and the distance between two adjacent light emitting members 30 on the second circuit board 2034 is a second predetermined distance (e.g., D2 in fig. 10); as shown in fig. 11, the mounting surface 2031 of the third circuit board 2036 may have a first mounting portion 2011 and a second mounting portion 2021, a distance between two adjacent light emitting elements 30 on the first mounting portion 2011 of the third circuit board 2034 is a first predetermined distance (e.g., D1 in fig. 11), and a distance between two adjacent light emitting elements 30 on the second mounting portion 2021 is a second predetermined distance (e.g., D2 in fig. 11).

The circuit board assembly 20 may be composed of the third circuit board 2036, for example, with reference to fig. 8, the circuit board assembly 20 may be composed of 12 third circuit boards 2036, and for the circuit board assembly 20 with the same area, the circuit board assembly 20 is composed of more third circuit boards 2036, which may reduce the maintenance cost of the circuit board assembly 20, specifically, when one third circuit board 2036 in the circuit board assembly 20 fails, the maintenance may be completed by only replacing the failed third circuit board 2036, and since the area of the composed third circuit board 2036 is smaller, the material cost required by the circuit board assembly 20 is also lower, which reduces the maintenance cost of the circuit board assembly 20.

As shown in fig. 12, the circuit board assembly 20 may be composed of 6 third circuit boards 2036, for example.

The plurality of circuit boards 203 are connected into at least one circuit board group 21, and each circuit board group 21 includes a plurality of circuit boards 203 connected in series in a straight direction.

The circuit boards 203 are connected to form the circuit board group 21, at least one circuit board group 21 is connected to form the circuit board assembly 20, and the circuit boards 203 can form an independent unit, so that when the independent circuit board 203 is damaged, only the damaged circuit board 203 needs to be replaced, the maintenance difficulty is reduced, and the operation and maintenance cost is reduced. Similarly, the circuit board group 21 can also be formed into an independent unit, so that when the independent circuit board group 21 is damaged, only the damaged circuit board group 21 needs to be replaced, thereby reducing the maintenance difficulty and the operation and maintenance cost.

It should be noted that the number of the circuit boards 203 included in the circuit board assembly 20 can be flexibly adjusted according to the production cost, the operation and maintenance cost and the user's requirement.

As shown in fig. 13, the circuit board assembly 20 may also be composed of a first circuit board 2034 and a second circuit board 2035, for example.

As shown in fig. 14, the circuit board assembly 20 may also be exemplarily composed of a first circuit board 2034, a second circuit board 2035, and a third circuit board 2036.

It should be noted that the circuit board assembly 20 may be formed by combining at least one of the first circuit board 2034, the second circuit board 2035 and the third circuit board 2036 according to design and performance requirements.

As shown in fig. 15, a first splicing edge 2032 is disposed on the mounting surface 2031 of one of the two adjacent circuit boards 203, a second splicing edge 2033 is disposed on the mounting surface 2031 of the other one of the two adjacent circuit boards 203, the first splicing edge 2032 is spliced with the second splicing edge 2033, the distance between the first splicing edge 2032 and the second splicing edge 2033 is a third preset distance, and the third preset distance is greater than or equal to 0.

The third preset distance is greater than or equal to 0, so that the two adjacent circuit boards 203 cannot be lapped, and the problem of uneven joint at the splicing position of the circuit boards 203 and material waste caused by lapping of the circuit boards 203 is avoided. Meanwhile, the third preset distance needs to be smaller than the first preset distance, so that the distance between the light-emitting members 30 of the two adjacent circuit boards 203 in the first mounting area is not greater than the first preset distance, the distance between the two adjacent light-emitting members 30 at the joint of the adjacent first joint edge 2032 and the second joint edge 2033 on the circuit board 203 is greater than 0, light emitted by the two adjacent light-emitting members 30 cannot be completely overlapped, and the display panel 200 is prevented from being displayed unevenly due to the fact that light at the joint is too strong.

The minimum distance between the light emitting member 30 on the first mounting portion 2011 and the first splicing edge 2032 is 0.5 times the difference between the first preset distance and the third preset distance; and/or the minimum distance between the light emitting element 30 on the second mounting portion 2021 and the second splicing edge 2033 is 0.5 times the difference between the second preset distance and the third preset distance.

The minimum distance (e.g., L in fig. 15) between the light emitting element 30 on the first mounting portion 2011 and the first splicing edge 2032 is 0.5 times the difference between the first preset distance and the third preset distance, so that the distance between two adjacent light emitting elements 30 on the circuit board 203 in the first mounting region 201, which are adjacent to the splicing position of the first splicing edge 2032 and the second splicing edge 2033, is the first preset distance, and/or the minimum distance between the light emitting element 30 on the second mounting portion 2021 and the second splicing edge 2033 is 0.5 times the difference between the second preset distance and the third preset distance, so that the distance between two adjacent light emitting elements 30 on the circuit board 203 in the second mounting region 202, which are adjacent to the splicing position of the first splicing edge 2032 and the second splicing edge 2033, is the second preset distance.

In some embodiments, as shown in fig. 16, the circuit board 203 is made of multiple layers of flame-retardant materials, the flame-retardant rating FR4 is provided, the light-emitting member 30 is mounted on the mounting surface 2031 of the upper circuit board 203, and the lower circuit board 203 is designed with connection lines for supplying power to the upper light-emitting member 30 of the upper circuit board 203 and controlling the light emission of the upper light-emitting member 30 of the upper circuit board 203. The multi-layer design of the circuit board 203 can avoid the problem that the distance between two adjacent light emitting members 30 is small, which results in no routing.

In the description herein, particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only an embodiment of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions within the technical scope of the present disclosure should be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (10)

1. A display device, comprising:

a display panel;

the back plate is arranged opposite to the display panel;

the circuit board assembly is arranged on the back plate and is positioned on one side where the display panel is positioned;

a plurality of light emitting members disposed on the circuit board assembly at intervals and electrically connected with the circuit board assembly,

the display panel comprises a display panel, a circuit board assembly and a circuit board, wherein a first mounting area and a second mounting area are arranged on one side of the circuit board assembly, which is close to the display panel, the first mounting area is an area close to the edge of the circuit board assembly, the second mounting area is an area close to the center of the circuit board assembly, and the first mounting area surrounds the second mounting area in a circle;

it is a plurality of some in the illuminating part are established first installation area, and is a plurality of another part in the illuminating part is established second installation area in first installation area, adjacent two the first distance of predetermineeing in illuminating part interval in the second installation area, adjacent two the distance is predetermine to illuminating part interval second, first distance of predetermineeing is less than the second distance of predetermineeing.

2. The display device according to claim 1, wherein the second predetermined distance is greater than or equal to 20mm and less than or equal to 50mm.

3. The display device according to claim 1, wherein a ratio of the first predetermined distance to the second predetermined distance is 0.5.

4. A display device according to claim 1, wherein the inner peripheral boundary of the first mounting region coincides with the outer peripheral boundary of the second mounting region.

5. A display device as claimed in claim 4,

the luminous piece close to the inner periphery in the first mounting area and the luminous piece close to the outer periphery in the second mounting area are separated by the second preset distance; or,

the luminous piece close to the inner periphery in the first mounting area and the luminous piece close to the outer periphery in the second mounting area are separated by the first preset distance.

6. The display device according to claim 1, wherein the circuit board assembly comprises a plurality of circuit boards, the circuit boards are spliced together, a side surface of the circuit board adjacent to the display panel is a mounting surface, the mounting surface of at least one of the circuit boards is provided with a first mounting portion, the mounting surface of at least one of the circuit boards is provided with a second mounting portion, the first mounting portion of at least one of the circuit boards constitutes the first mounting area, and the second mounting portion of at least one of the circuit boards constitutes the second mounting area.

7. A display device according to claim 6, wherein a plurality of said circuit boards are connected into at least one circuit board group, each of said circuit board groups comprising a plurality of circuit boards connected in series in a linear direction.

8. A display device according to claim 7, wherein the mounting surface of one of two adjacent circuit boards is provided with a first splicing edge, the mounting surface of the other of two adjacent circuit boards is provided with a second splicing edge, the first splicing edge is spliced with the second splicing edge, the distance between the first splicing edge and the second splicing edge is a third preset distance, and the third preset distance is greater than or equal to 0.

9. A display device according to claim 8,

the minimum distance between the light-emitting piece on the first mounting part and the first splicing edge is 0.5 times of the difference between the first preset distance and the third preset distance; and/or the presence of a gas in the atmosphere,

the minimum distance between the light-emitting piece and the second splicing edge on the second installation part is 0.5 times of the difference between the second preset distance and the third preset distance.

10. A display device as claimed in any one of claims 1 to 9, wherein the light-emitting elements are sub-millimetre light-emitting diodes.

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