Flat panel light fixture and flat panel light device

Abstract

The application discloses a flat lamp and a flat lamp device. The flat lamp comprises a light guide plate module, a light-transmitting shell and a light source module. The light guide plate module comprises a light guide plate, which comprises a light inlet surface and a light outlet surface. The light-transmitting shell is provided with a receiving cavity, and the light guide plate module is arranged in the receiving cavity. The light-transmitting shell comprises a light guide surface plate and a plurality of light guide side edges. The light guide surface plate covers the light outlet surface, and the plurality of light guide side edges are arranged around the light guide plate module. The light source module comprises a first light source and a second light source. The first light source is arranged opposite to the light inlet surface of the light guide plate. The light emitted by the first light source enters the inside of the light guide plate through the light inlet surface and is emitted through the light outlet surface and the light guide surface plate. The light emitted by the second light source is emitted through the light guide side edges. The flat lamp has a rich light effect.

Description

Technical Field

[0001] This application relates to the field of lighting technology, and more specifically, to a flat panel lamp and a flat panel lamp device. Background Technology

[0002] Flat panel lights are widely used in people's daily lives. When a flat panel light illuminates, the light shines out along the lampshade. Because the lampshade is flat, the illuminated flat panel light appears as a single plane, resulting in a limited visual effect. As people's living standards gradually improve, flat panel lights that only have the function of illumination can no longer meet the needs of consumers. Summary of the Invention

[0003] This application provides a flat panel lamp and a flat panel lamp device.

[0004] According to a first aspect of this application, an embodiment of this application provides a flat panel lamp, which includes a light guide plate module, a light-transmitting housing, and a light source module. The light guide plate module includes a light guide plate, which has a light-inlet surface and a light-outlet surface. The light-transmitting housing has a receiving cavity, and the light guide plate module is disposed within the receiving cavity; the light-transmitting housing includes a light guide panel and multiple light guide sides, the light guide panel covering the light-outlet surface, and the multiple light guide sides being disposed around the light guide plate module. The light source module includes a first light source and a second light source. The first light source is disposed opposite to the light-inlet surface of the light guide plate. Light emitted by the first light source enters the interior of the light guide plate through the light-inlet surface and exits through the light-outlet surface and the light guide panel; light emitted by the second light source exits through the light guide sides.

[0005] According to a second aspect of this application, an embodiment of this application provides a flat panel lamp device, which includes the above-mentioned flat panel lamps, wherein a plurality of flat panel lamps are adapted to be arranged on a predetermined plane, and the outer peripheral walls of two adjacent flat panel lamps are in contact with each other.

[0006] This application provides a flat panel lamp and a flat panel lamp device equipped with the lamp. Light emitted from a first light source enters the light guide plate through a light-inlet surface and exits through a light-outlet surface and a light guide panel. Light from a second light source exits through a light guide side. By setting the first and second light sources to provide incident light to the light guide plate and light guide side respectively, a combined surface-emitting and edge-emitting light effect can be achieved. Furthermore, the light from the first and second light sources can be independently controlled, facilitating the realization of various light effects. Since the second light source provides incident light solely to the light guide side, the brightness of the light guide side can be customized as needed. When its color or brightness differs from the brightness of the light guide panel corresponding to the first light source, the emitting lines on the light guide side are more prominent than the emitting surface on the light guide panel. The emitting lines, combined with the emitting surface corresponding to the light guide plate, can form special light effects, enriching the light performance of the flat panel lamp and improving the user's viewing experience. Attached Figure Description

[0007] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0008] Figure 1 This is a structural schematic diagram of the flat panel lamp provided in the embodiments of this application.

[0009] Figure 2 yes Figure 1 A three-dimensional exploded view of a medium-sized flat panel lamp.

[0010] Figure 3 yes Figure 2 A schematic diagram of the structure of the light-transmitting housing of a medium-sized flat panel lamp.

[0011] Figure 4 This is a schematic diagram of the light effect of a flat panel lamp in an embodiment of this application.

[0012] Figure 5 This is another schematic diagram of the light effect of the flat panel lamp in the embodiments of this application.

[0013] Figure 6 yes Figure 2 A schematic diagram of the assembly of the light guide plate module and the light source module of the medium-sized flat panel lamp.

[0014] Figure 7 This is another schematic diagram of the light effect of the flat panel lamp in the embodiments of this application.

[0015] Figure 8 This is another schematic diagram of the light effect of the flat panel lamp in the embodiments of this application.

[0016] Figure 9 yes Figure 1 A three-dimensional cross-sectional diagram of a medium-sized flat panel lamp.

[0017] Figure 10 yes Figure 9 A partially enlarged schematic diagram of a medium-sized flat panel lamp.

[0018] Figure 11 yes Figure 10 An enlarged schematic diagram of area A of the medium-sized flat panel lamp.

[0019] Figure 12 yes Figure 10 A three-dimensional exploded view of a medium-sized flat panel lamp.

[0020] Figure 13 yes Figure 12 A partially enlarged schematic diagram of a medium-sized flat panel lamp.

[0021] Figure 14 This is another schematic diagram of the light effect of the flat panel lamp in the embodiments of this application.

[0022] Figure 15 yes Figure 9 A schematic diagram of a flat panel lamp with its base omitted from another perspective.

[0023] Figure 16 yes Figure 15 An enlarged schematic diagram of area B of the medium-sized flat panel lamp.

[0024] Figure 17 yes Figure 15 A schematic diagram of the virtual assembly of the bottom shell of a medium-sized flat panel lamp.

[0025] Figure 18 This is a schematic diagram of the structure of the flat panel lamp device provided in the embodiments of this application. Detailed Implementation

[0026] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are merely some embodiments of the present application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present application without creative effort are within the scope of protection of the present application.

[0027] Please see Figure 1 and Figure 2 This application provides a flat panel lamp 100, which can be used for lighting, decoration, etc. The flat panel lamp 100 includes a light-transmitting housing 10, a light guide plate module 30, and a light source module 50. The light guide plate module 30 and the light source module 50 are both disposed inside the light-transmitting housing 10. The light source module 50 is used to emit light, which is guided through the light guide plate module 30 and transmitted through the light-transmitting housing 10 to the outside to achieve decorative and / or lighting effects.

[0028] Please see Figure 3 In this embodiment, the light-transmitting housing 10 can be generally flat, defining the overall external outline shape of the flat panel lamp 100. The light-transmitting housing 10 has a receiving cavity 101 for accommodating the light guide plate module 30 and the light source module 50. The light-transmitting housing 10 is made of a light-transmitting material, such as inorganic glass, organic polymers, or fiber nanocomposite materials. As an example, the light-transmitting housing 10 can be made of at least one material selected from fiberglass, resin, and acrylic, thus allowing the light inside to pass through and form a clearer light outline.

[0029] In this embodiment, the light-transmitting housing 10 includes a light guide panel 12 and multiple light guide sides 16.

[0030] The light guide panel 12 serves as the outer surface of the flat panel lamp 100 and is generally flat. The light guide panel 12 covers the light guide plate module 30 and allows light from within the light guide plate module 30 to pass through the light guide panel 12 and propagate to the outside, forming a surface-emitting light effect. The specific outline of the light guide panel 12 can be polygonal, such as a triangle, quadrilateral, pentagon, hexagon, etc., or it can be other irregular shapes, such as a shape whose outer outline is defined by both straight and curved segments. Specifically, in the illustrated embodiment, the outer outline of the light guide panel 12 is approximately a regular hexagon. It should be understood that the specific outline of the light guide panel 12 is not limited to the examples listed in this specification.

[0031] A light guide side 16 is disposed on the side of the light guide panel 12 facing the receiving cavity 101. The light guide side 16 is used to allow light from the light source module 50 to pass through. When the light from the light source module 50 passes through the light guide side 16 and passes to the outside, it can form a linear light emission effect. In this embodiment, the light guide side 16 is generally in the shape of a long strip plate, and its length dimension can be much larger than its width or thickness dimension. For example, the length dimension of the light guide side 16 is more than three times its width dimension, so that its structure is generally in the shape of a long strip plate, thereby guiding light to form a linear light emission effect. The light guide side 16 is fixedly connected to the light guide panel 12 and protrudes relative to the surface of the light guide panel 12. Specifically, the light guide side 16 can be generally perpendicular to the light guide panel 12.

[0032] In this embodiment, the number of light guide sides 16 is not limited by this specification or the accompanying drawings, and can be one or more. When there are multiple light guide sides 16, they are connected end-to-end to jointly define the receiving cavity 101, which is used to accommodate the light guide plate module 30. When the light guide plate module 30 is located in the receiving cavity 101, the multiple light guide sides 16 are arranged around the light guide plate module 30. When the light source module 50 is lit, part of the light is emitted to the outside through the light guide plate module 50 and the light guide panel 12 to form a light-emitting surface corresponding to the light guide plate, and another part of the light is emitted to the outside through the light guide sides 16 to form light-emitting lines corresponding to the light guide sides 16. The light-emitting lines surround the light-emitting surface, and the light-emitting lines are more prominent than the light-emitting surface. The light-emitting lines combined with the light-emitting surface corresponding to the light guide plate can form special light effects (such as...). Figure 4 As shown in the image, this enhances the lighting performance of the flat panel light fixture 100 and enriches the user's viewing experience.

[0033] Furthermore, please also refer to Figure 3 and Figure 5To further enhance the light effect of the flat panel lamp 100, the flat panel lamp 100 may also include a light-shielding layer 72. The light-shielding layer 72 is located on the side of the light guide side 16 facing the interior of the receiving cavity 101. The light-shielding layer is used to block part of the light from the first light source 52 of the light source module 50, so that there is a gap between the light-emitting surface corresponding to the light guide plate 32 and the light-emitting line corresponding to the light guide side 16. When the light from the light source module 50 passes through the light guide plate module 30 and the light guide side 16, the light-emitting surface corresponding to the light guide plate 32 can appear to be roughly in a floating state, which enriches the user's viewing experience.

[0034] Please refer to it again. Figure 3 In this embodiment, the light-transmitting housing 10 may further include a light guide strip 14. The light guide strip 14 is disposed on the side of the light guide panel 12 facing the receiving cavity 101. The light guide strip 14 is used to allow light from the light source module 50 to pass through. When the light from the light source module 50 passes through the light guide strip 14 and passes to the outside, it can form a linear light emission effect. In this embodiment, the light guide strip 14 is generally in the shape of a long strip plate. Its length dimension can be much larger than its width or thickness dimension. For example, the length dimension of the light guide strip 14 is more than three times its width dimension, so that its structure is generally in the shape of a long strip plate, thereby guiding light to form a linear light emission effect. The light guide strip 14 is fixedly connected to the light guide panel 12 and protrudes relative to the surface of the light guide panel 12. Specifically, the light guide strip 14 can be generally perpendicular to the light guide panel 12. Therefore, the light guide strip 14 is located inside the receiving cavity 101 and divides the receiving cavity 101 into at least two receiving chambers 1011, which are used to receive the light guide plate in the light guide plate module 30.

[0035] In this embodiment, the number of light guide strips 14 is not limited by this specification or the accompanying drawings, and can be one or more. Specifically, the number of light guide strips 14 can be N, where N is a positive integer greater than or equal to 1, for example, N is 2 or greater than 2. By setting N light guide strips 14, the receiving cavity 101 can be divided into at least N receiving chambers 1011, so as to facilitate the setting of at least N corresponding light guide plates. N light guide strips 14 can also form N light-emitting lines, which is beneficial to enriching the light effect performance of the flat panel lamp 100. Further, the number of light guide sides 16 can be M, where M is a positive integer greater than or equal to 2, for example, M is 2 or greater than 2, and M is an integer multiple of N. (M / N) light guide sides 16 are sequentially connected between two adjacent light guide strips 14, so that (M / N) light guide sides 16 and two light guide strips together surround and define a corresponding receiving chamber 1011, which is used to accommodate one corresponding light guide plate in the light guide plate module 30. M light guide sides 16 can also form M light-emitting lines. The light-emitting lines formed by the M light guide sides 16 and N light guide strips 14, combined with the light-emitting surface formed by the corresponding light guide plate, can be customized to create a variety of light effects: for example, to form three-dimensional geometric light effects, which is beneficial to enriching the light effect performance of the flat panel lamp 100.

[0036] In this embodiment, N light guide strips 14 are arranged at intervals on the surface of the light guide panel 12. As an example, the N light guide strips 14 can be arranged approximately radially about a predetermined center point O. For example, each light guide strip 14 may include opposing first ends 141 and second ends 143. The first ends 141 of the N light guide strips 14 are connected to each other, and the connection node of the first ends 141 of the N light guide strips 14 is the predetermined center point O. The second end 143 of each light guide strip 14 extends in a direction away from the center point O. Since the light guide strips 14 in this embodiment are approximately flat, the above arrangement makes the N light guide strips 14 radially arranged about the center point O. The included angle between each pair of adjacent light guide strips 14 is approximately the same, that is, the distance between the second ends 143 of each pair of adjacent light guide strips 14 is approximately the same. Specifically... Figure 3 In the illustrated embodiment, there are three light guide strips 14, which are arranged in a roughly linear radial pattern about the center point O. Of course, in other embodiments, the light guide strips 14 can also be arc-shaped. For example, when the light guide strips 14 are arc-shaped, N light guide strips 14 are arranged in a spiral radial pattern about the center point O; or, when the light guide strips 14 are wavy, N light guide strips 14 are arranged in a wavy radial pattern about the center point O.

[0037] The N light guide strips 14 can be connected in an assembly relationship or as a single piece. For example, the first ends 143 of the N light guide strips 14 can all be connected together (i.e., at the center point O), or the first ends 143 of the N light guide strips 14 can be arranged roughly around the center point O but spaced apart from each other. The N light guide strips 14 and the light guide panel 12 can be connected in an assembly relationship or as a single piece. For example, after the light guide panel 12 and the light guide strips 14 are separately manufactured, they are connected together by adhesives or fasteners; or, the light guide panel 12 and the light guide strips 14 can be made of the same material by injection molding or compression molding processes to form an integral light-transmitting housing 10.

[0038] exist Figure 3 In the illustrated embodiment, there are three light guide strips 14 and six light guide sides 16. Every two light guide sides 16 are sequentially connected between two adjacent light guide strips 14, so that the two light guide sides 16 and the two light guide strips 14 together surround and define a corresponding receiving chamber 1011. When multiple light guide plates in the light guide plate module 30 are respectively placed in the corresponding receiving chambers 1011, it is beneficial to form a hexahedral three-dimensional geometric light effect. In this embodiment, the M light guide sides 16 and the light guide panel 12 can be connected by assembly or by integral molding. For example, after the light guide panel 12 and the light guide sides 16 are separately manufactured, they are connected together by adhesives or fasteners; or, the light guide panel 12 and the light guide sides 16 are manufactured from the same material through injection molding or compression molding processes.

[0039] Please see Figure 6The light guide plate module 30 is disposed within the receiving cavity 101 of the light-transmitting housing 10. It guides the light from the light source module 50 towards the light-transmitting housing 10, thereby forming a light-emitting surface effect after the light penetrates the light-transmitting housing 10 and exits. The light guide plate module 30 includes a light guide plate 32, with multiple light-guiding sides 16 surrounding the light guide plate 32. In this embodiment, the number of light guide plates 32 can be at least two, with at least two light guide plates 32 spaced apart from each other and arranged on the same plane to facilitate the formation of a surface-emitting light effect. When at least two light guide plates 32 are arranged within the receiving cavity 101, the light guide panel 12 covers the light-emitting surface of the light guide plate module 30 / light guide plate 32. A light guide gap 301 is formed between two adjacent light guide plates 32. The light guide gap 301 is used to accommodate the light guide strip 14. When the light guide strip 14 is disposed within the light guide gap 301, part of the light from the light source module 50 can be emitted sequentially through the light guide plate 32 and the light guide panel 12 to form a light-emitting surface. At the same time, other parts of the light from the light source module 50 can also be emitted through the light guide strip 14 to form light-emitting lines, thereby forming a light effect combining the light-emitting surface and the light-emitting lines. When the brightness of the light corresponding to at least two light guide plates 32 is different, since the light-emitting lines formed by the light guide strip 14 are between the two light guide plates 32, the light-emitting lines can stand out between at least two light-emitting surfaces. The combination of at least two light-emitting surfaces and light-emitting lines can form a more layered three-dimensional light effect (such as...). Figure 7 (As shown in the example), it can enrich the luminous efficacy of the flat panel lamp 100.

[0040] Please refer to it again. Figure 6 In this embodiment, the number of light guide plates 32 is N, where N is a positive integer greater than or equal to 1, for example, N is 2 or greater. The number of light guide plates 32 can be approximately the same as the number of light guide strips 14. Therefore, the N light guide plates 32 are arranged one-to-one in the N receiving chambers 1011 formed by the N light guide strips 14, so that the N light guide plates 32 are sequentially distributed around a predetermined center point O, and each light guide strip 14 is located between two adjacent light guide plates 32. In this embodiment, three light guide plates 32 and three light guide strips 14 are provided. The light guide plates 32 are all rhomboid structures. The three light guide plates 32 are sequentially distributed around a predetermined center point O, which can jointly form a regular hexagonal light-emitting surface structure. When the light from the light source module 50 is emitted through the three light guide plates 32 and the three light guide strips 14, the combination of the light-emitting surface and the light-emitting line can form a shape such that... Figure 8 The visual stereoscopic lighting effect shown allows the human eye to observe a three-dimensional hexahedral shape (different shades of gray are used in the image to represent the color or brightness difference between different luminous surfaces).

[0041] Please refer to it again. Figure 6The light guide plate 32 includes a light-inlet surface 321 and a light-outlet surface 323. The light-outlet surface 323 is disposed opposite to the light guide panel 12. The light-inlet surface 321 is used to allow light from the light source module 50 to enter, and the incident light is emitted through the light-outlet surface 323. In this embodiment, the light-inlet surface 321 serves as the peripheral wall of the light guide plate 32, is disposed approximately along the thickness direction of the light guide plate 32, and is adjacent to the light-outlet surface 323.

[0042] Furthermore, the light guide plate 32 may also include a back surface 325 that is opposite to the light emitting surface 323. Figure 2 The back surface 325 is located on the side of the light guide plate 32 away from the light guide panel 12, and the light-inlet surface 321 is connected between the back surface 325 and the light-outlet surface 323. The back surface 325 is provided with a textured reflective mesh structure, which is used to diffuse the light inside the light guide plate 32. Through the textured reflective mesh structure, the specular reflection condition can be broken. When the light from the light source module 50 enters the interior of the light guide plate 32 through the light-inlet surface 321, the light can diffuse to various angles as it propagates inside the light guide plate 32, thereby being uniformly emitted through the light-outlet surface 321 to form a light-emitting surface with relatively uniform brightness.

[0043] Please also refer to Figures 9 to 11 In this embodiment, the light-incoming surface 321 is disposed on the side of the light guide plate 321 away from the light guide gap 301, so as to avoid the light-incoming surface 321 being located between multiple light guide plates 32, thereby facilitating the layout of the light-emitting units of the light source module 50. Relatively speaking, the light-incoming surface 321 is located on the opposite outer side of the light guide plate 32, that is, the light-incoming surface 321 of one light guide plate 32 is located on the side of the light guide plate 32 that is not adjacent to other light guide plates 32, so that the light-incoming surface 321 and the inner wall of the light guide side 16 of the light-transmitting housing 10 are relatively spaced apart, and a predetermined gap 160 is formed between the light-incoming surface 321 and the corresponding light guide side 16. The predetermined gap 160 is used to accommodate part of the structure of the light source module 50, so as to make the structure of the flat panel lamp 100 more compact.

[0044] Furthermore, the light guide plate 32 also includes multiple sides 327. Figure 6The side surface 327 is connected between the back surface 325 and the light-emitting surface 323. The light-incoming surface 321 and the multiple side surfaces 327 together form the outer wall of the light guide plate 32. The side surface 327 is located on the side of the light guide plate 32 facing the light guide gap 301. The side surface 327 of one light guide plate 32 is spaced apart from the side surface 327 of the light guide plate 32 adjacent to it. The number of light-incoming surfaces 321 included in a light guide plate 32 can be multiple, for example, two or more. The multiple light-incoming surfaces 321 and the multiple side surfaces 327 together define the outer contour of the light guide plate 32 as a polygonal geometry, which is beneficial to forming a three-dimensional light effect. In this embodiment, the light guide plate 32 is generally rhomboid in shape. One light guide plate 32 includes two light-incoming surfaces 321 and two side surfaces 327, and the length of the light-incoming surfaces 321 and the side surfaces 327 is approximately the same.

[0045] Furthermore, the light guide plate module 30 may also include a reflective layer 34, which is disposed on at least one of the back surface 325 and the side surface 327. The reflective surface of the reflective layer 34 is disposed facing the interior of the light guide plate 32 to reflect light propagating to the back surface 325 and / or the side surface 327 back into the interior of the light guide plate 32. The reflective layer 34 may be reflective paper, which may be attached to the back surface 325 and / or the side surface 327. Alternatively, the reflective layer 34 may be a reflective coating, which is coated on the back surface 325 and / or the side surface 327. By setting the reflective layer 34, light can be prevented from leaking out from the side of the light guide plate 32 other than the light-emitting surface 323. For example, when the reflective layer 34 is set on the side 327, light can be prevented from leaking out into the light guide gap 301 through the side 327, thereby effectively preventing light mixing in the gap and making the outline of the light-emitting surface formed by the light guide plate 32 clearer. By setting the reflective layer 34, light loss when light propagates in the light guide plate 32 can also be reduced, resulting in higher light utilization.

[0046] The light source module 50 is disposed on the side of the light guide plate module 30 opposite to the light guide panel 12. In this embodiment, please refer to... Figure 12 and Figure 13The light source module 50 includes a first light source 52 and a second light source 56. The first light source 52 is disposed opposite to the light-inlet surface 321 of the light guide plate 32. The light emitted by the first light source 32 enters the interior of the light guide plate 32 through the light-inlet surface 321 and is emitted through the light-outlet surface 323 and the light guide panel 12. The second light source 56 is used to provide incident light to the light guide side 16, that is, the light from the second light source 56 is emitted through the light guide side 16 to form the light effect of the light-emitting line. By providing incident light to the light guide plate 32 and the light guide side 16 respectively by the first light source 52 and the second light source 56, the combined light effect of surface emission and edge emission can be achieved. Furthermore, the light from the first light source 52 and the second light source 56 can be independently controlled, which is beneficial for achieving a variety of light effects. Furthermore, since the second light source 56 provides incident light to the light guide side 16 separately, the brightness of the light guide side 16 can be customized according to requirements. When its color or brightness is different from that of the first light source 12, the light-emitting lines of the light guide side 16 are more prominent than the light-emitting surfaces on the light guide panel 12. The light-emitting lines combined with the light-emitting surfaces corresponding to at least two light guide plates 32 can form a three-dimensional light effect, enriching the light effect performance of the flat panel lamp 100.

[0047] In this embodiment, the light source module 50 may further include a third light source 54, which is disposed within the receiving cavity 101 and used to provide incident light to the light guide strip 14. The light from the third light source 54 is emitted through the light guide strip 14. By providing incident light to the light guide plate 32 and the light guide strip 14 respectively through the first light source 52 and the third light source 54, a combined light effect of surface emission and edge emission can be achieved. Furthermore, the light from the first light source 52 and the third light source 54 can be independently controlled, which is beneficial for achieving various light effects. Further, since the third light source 54 provides incident light to the light guide strip 14 independently, the brightness of the light guide strip 14 can be customized according to requirements. When its color or brightness is different from that of the first light source 12, the display of the light-emitting lines of the light guide strip 14 is more prominent than the light-emitting surface on the light guide plate 12. The light-emitting lines combined with the light-emitting surfaces corresponding to at least two light guide plates 32 can form a three-dimensional light effect, enriching the light effect performance of the flat panel lamp 100.

[0048] exist Figure 13In the illustrated embodiment, the light source module 50 may further include a substrate 51, which is disposed on the side of the light guide plate module 30 facing away from the light guide panel 12. The first light source 52 and the third light source 54 are both disposed on the substrate 51. The substrate 51 may be a printed circuit board, on which conductive traces may be provided for electrical connection with the first light source 52 and the third light source 54. The first light source 52 is disposed on the side of the substrate 51 facing the light guide plate 32, and is generally disposed at the edge of the substrate 51. Since the light-inlet surface 321 of the light guide plate 32 is located between the light-outlet surface 325 and the substrate 51, the first light source 52 can be disposed facing the light-inlet surface 321, and the first light source 52 and the light guide plate 32 are generally arranged on the same plane, which can effectively reduce the size of the flat panel lamp 100 in the thickness direction. In this embodiment, there are multiple first light sources 52, and each of the multiple first light sources 52 is correspondingly disposed with a corresponding light-inlet surface 321. The light from each first light source 52 is incident into the light guide plate 32 through the corresponding light-inlet surface 321.

[0049] The first light source 52 includes a plurality of first light-emitting units 521, which are arranged sequentially at intervals along the extension direction of the corresponding light-incident surface 321. The first light-emitting unit 521 can be an LED light-emitting unit, with its light-emitting side facing the light-incident surface 321. Since the light-incident surface 321 and the inner wall of the light-guiding side 16 of the light-transmitting housing 10 are arranged at intervals, a predetermined gap 160 is formed between the light-incident surface 521 and the corresponding light-guiding side 16. Therefore, the plurality of first light-emitting units 521 are disposed within the predetermined gap 160, and the first light-emitting units 521 face away from the light-guiding side 16, thereby enabling as much light from the first light source 52 as possible to enter the light guide plate 12.

[0050] As an example, the light-shielding layer 72 can be located on the side of the first light source 52 away from the substrate 51. The light-shielding layer 72 can be used to prevent the light from the first light source 52 from leaking out through the predetermined gap 160. Specifically, when the first light source 52 is disposed within the predetermined gap 160, and the light guide panel 12 covers the predetermined gap 160, when the light from the first light source 52 enters the light-receiving surface 321 along the plane of the substrate 51, a small portion of the light may be reflected by other parts and propagate in a direction away from the substrate 51. At this time, by disposing of the light-shielding layer 72 on the side of the first light source 52 away from the substrate 51, for example, by disposing of the light-shielding layer 72 between the first light source 52 and the light guide panel 12, this portion of the light can be blocked from escaping. This ensures light utilization efficiency to a certain extent, while also creating a gap between the light-emitting surface formed by the light guide plate 32 and the light-emitting line formed by the light guide side 16, forming a contrast between light and dark. When the flat panel lamp 100 is in full brightness, the three-dimensional effect of the produced graphic is more pronounced, such as... Figure 14 As shown.

[0051] Furthermore, in this embodiment, the light transmittance of the light-shielding layer 72 is less than that of the light guide plate 32, and also less than that of the light guide panel 12, so as to block light and thus form a display light effect with contrast between light and dark. The light-shielding layer 72 can be made of non-transparent materials, such as light-shielding materials, and its specific form can be: light-shielding coating, light-shielding tape, light-shielding cloth, light-shielding plate, etc. The light-shielding layer 72 can be attached to the inner surface of the light guide panel 12 and correspondingly cover the predetermined gap 160, or the light-shielding layer 72 can also be attached to the outer surface of the light guide panel 12, or the light-shielding layer 72 itself is a plate made of light-shielding material, which is fixed inside the light-transmitting housing 10.

[0052] Please refer to it again. Figure 13 In this embodiment, the flat panel lamp 100 may further include a diffuser module 74, which is disposed between the light guide panel 12 and the light guide module 30 of the light-transmitting housing 10. The diffuser module 74 is used to diffuse the light emitted through the light guide module 30, so as to make the light on the light-emitting surface more uniform. The diffuser module 74 may also be used to install a light-shielding layer 72. For example, the diffuser module 74 may cover a predetermined gap 160, and the light-shielding layer 72 may be disposed on the side of the diffuser module 74 away from the predetermined gap 160 or on the side facing the predetermined gap 160.

[0053] As an example, the diffuser module 74 may include at least two diffuser plates 741 spaced apart from each other, arranged on the same plane. The diffuser plate 741 may be a light-scattering diffuser, containing chemical particles as scattering particles, causing light to continuously refract, reflect, and scatter in two media with different refractive indices as it passes through the scattering layer, thereby producing an optical diffusion effect. Alternatively, the diffuser plate 741 may be a microstructured light diffuser, with its surface having an array of microstructure features, causing light to refract in different directions, changing the light's path, achieving sufficient light scattering, and resulting in a softer, more uniform illumination effect. The microstructure array may include at least one of the following structures: a V-groove array, a U-groove array, a pyramid array, a ring array, a microlens array, etc. The number of diffuser plates 74 is the same as the number of light guide plates 32, with at least two diffuser plates 74 stacked one-to-one on at least two light guide plates 32 to make the light emitted from the corresponding light guide plate 32 more uniform. Furthermore, a through groove 7410 is formed between two adjacent diffuser plates 741. The through groove 7410 is opposite to and communicates with the corresponding light guide gap 301. The through groove 7410 is used to partially accommodate the corresponding light guide strip 14. The light guide strip 14 passes through the corresponding through groove 7410 and the corresponding light guide gap 301 so as to be exposed on the side of the light guide plate 32 away from the light guide panel 12, thereby emitting the light from the third light source 54.

[0054] The third light source 54 is fixed to the side of the substrate 51 facing away from the light guide plate module 30. In this embodiment, the substrate 51 is provided with a recessed groove 510, which is opposite to and communicates with the corresponding light guide gap 301. The third light source 54 is disposed adjacent to the recessed groove 510. The light guide strip 14 is sequentially disposed through the through groove 7401, the light guide gap 301, and the recessed groove 510 and exposed on the side of the substrate 51 facing away from the light guide plate module 30, so that the light from the third light source 54 can enter and penetrate the light guide strip 14 and be emitted. The number of third light sources 54 can be the same as the number of light guide strips 14. For example, there can be multiple third light sources 54, and multiple third light sources 54 are disposed in one-to-one correspondence with multiple light guide strips 14. The light from each third light source 54 is emitted into the external environment through the corresponding light guide strip 14 to form the light effect of a light-emitting line.

[0055] Please see Figure 15 and Figure 16 In this embodiment, in order to improve the light utilization rate of the third light source 54, the light guide strip 14 can be exposed on the side of the substrate 51 away from the light guide plate 32. For example, the end face of the light guide strip 14 is flush with the surface of the side of the substrate 51 away from the light guide plate 32, so that the light of the third light source 54 located on this side of the substrate 51 can be directly incident on the light guide strip 14.

[0056] In other embodiments, the light guide strip 14 may protrude from the side of the substrate 51 opposite to the light guide plate module 30, allowing a portion of the structure of the light guide strip 14 to be spaced relative to the third light source 54. This allows the light from the corresponding third light source 54 to directly incident on the light guide strip 14, resulting in higher light extraction efficiency and higher brightness of the light-emitting line corresponding to the light guide strip 14. Furthermore, in such embodiments, a reflector (not shown in the figure) may be provided on the side of the light guide strip 14 opposite to the third light source 54. The reflective surface of this reflector faces the interior of the light guide strip 14 to prevent the light from the third light source 54 from mixing with other light sources and to improve the utilization efficiency of the light from the third light source 54.

[0057] The second light source 56 is disposed on the side of the substrate 51 facing away from the light guide plate 32, and is generally disposed at the edge of the substrate 51. The end of the light guide side 16 corresponding to the second light source 56 is exposed on the side of the substrate 51 facing away from the light guide plate module 30, so that the light from the second light source 56 can enter and penetrate the light guide side 16 and be emitted. The number of second light sources 56 can be the same as the number of light guide sides 16. For example, there can be multiple second light sources 56, and multiple second light sources 56 are disposed in one-to-one correspondence with multiple light guide sides 16. The light from each second light source 56 is emitted into the external environment through the corresponding light guide side 16 to form a light-emitting line.

[0058] In this embodiment, in order to improve the light utilization rate of the second light source 56, the light guide side 16 can be exposed on the side of the substrate 51 away from the light guide plate 32. For example, the end face of the light guide side 16 is flush with the surface of the side of the substrate 51 away from the light guide plate 32, so that the light from the second light source 56 located on this side can be directly incident on the light guide side 16.

[0059] In other embodiments, the light guide side 16 may protrude from the side of the substrate 51 opposite to the light guide plate module 30, allowing a portion of the structure of the light guide side 16 to be spaced relative to the second light source 56, so that the light from the corresponding second light source 56 can be directly incident on the light guide side 16. Further, in such embodiments, a reflector (not shown in the figure) may be provided on the side of the light guide side 16 opposite to the second light source 56, with the reflective surface of the reflector facing inwards towards the light guide side 16, to prevent the light from the second light source 56 from mixing with other light and to improve the utilization efficiency of the light from the second light source 56. Since the light guide side 16 and the corresponding light guide strip 14 are arranged together around a light guide plate 32, the light-emitting lines corresponding to the light guide side 16 and the corresponding light guide strip 14 surround the light-emitting surface corresponding to the light guide plate 32, forming a more angular and three-dimensional visual light effect.

[0060] The second light source 56 includes a plurality of second light-emitting units 561, which are arranged sequentially at intervals along the extension direction of the corresponding light-guiding side 16. Each second light-emitting unit 561 can be an LED light-emitting unit, with its light-emitting side facing the direction of the light-guiding side 16. Furthermore, the second light-emitting units 561 of the second light source 56 are arranged at the edge of the substrate 51. The distance between the second light source 56 and the outer periphery of the substrate 51 is greater than the distance between the first light source 52 and the outer periphery of the substrate 51. That is, the second light source 56 is relatively closer to the center of the substrate 51. Therefore, in the thickness direction, the first light source 52 and the second light source 56 are staggered, which avoids cross-contamination and facilitates the layout of conductive traces on the substrate 51.

[0061] The third light source 54 includes multiple third light-emitting units 541, which are arranged sequentially at intervals along the extension direction of the corresponding light guide strip 14. The third light-emitting unit 541 can be an LED light-emitting unit, with its light-emitting side facing the direction of the light guide strip 14.

[0062] Please also refer to Figure 13 and Figure 17 In this embodiment, the flat panel lamp 100 may further include a bottom shell 90, which is used to interlock with the light-transmitting shell 10 to accommodate the light guide plate module 30 and the light source module 50, thereby providing protection. The bottom shell 90 includes a bottom wall 92 and a first light-blocking strip 941.

[0063] The bottom wall 92 is generally plate-shaped and is fixedly disposed on the side of the substrate 51 opposite to the light guide plate module 30, and is spaced apart from the substrate 51, and can cover the receiving cavity 101. The specific outline of the bottom wall 92 can be polygonal, such as triangle, quadrilateral, pentagon, hexagon, etc., or it can be other irregular shapes, such as a shape whose outer outline is defined by both straight line segments and curved segments. It should be understood that the specific outline of the bottom wall 92 is not limited to the examples listed in this specification. Specifically, in the illustrated embodiment, the outline shape of the bottom wall 92 is approximately the same as the shape of the light guide panel 12, and the outer outline of the bottom wall 92 is approximately a regular hexagon.

[0064] The first light-blocking strip 941 is generally elongated and is disposed between the bottom wall 92 and the substrate 51 to prevent light leakage between the multiple third light sources 54. Specifically, the first light-blocking strip 941 is fixedly disposed on the bottom wall 92 and protrudes relative to the surface of the bottom wall 92. The number of first light-blocking strips 941 can be the same as the number of third light sources 54. For example, there can be multiple first light-blocking strips 941, with each of the multiple first light-blocking strips 941 corresponding to a single third light source 54. The first light-blocking strip 941 is located on the side of the corresponding third light source 54 that faces away from the corresponding light guide strip 14 to prevent the third light source 54 from leaking out from the back and causing light leakage between it and other third light sources 54.

[0065] Furthermore, the bottom shell 90 may also include a second light-blocking strip 943. The second light-blocking strip 943 is generally elongated and is disposed between the bottom wall 92 and the substrate 51 to prevent light leakage between the multiple second light sources 56. Specifically, the second light-blocking strip 943 is fixedly disposed on the bottom wall 92 and protrudes relative to the surface of the bottom wall 92. The number of second light-blocking strips 943 can be the same as the number of second light sources 56. For example, there can be multiple second light-blocking strips 943, each corresponding to one of the multiple second light sources 56. The second light-blocking strip 943 is located on the side of the corresponding second light source 56 away from the corresponding light-guiding side 16 to prevent the second light source 56 from leaking out from the back and causing light leakage between other second light sources 56.

[0066] In this embodiment, the bottom shell 90 may further include a plurality of first spacer ribs 961, which are arranged sequentially at intervals along the extension direction of the first light-blocking strip 941. The first spacer ribs 961 may be approximately perpendicular to the first light-blocking strip 941, and the ends of the first spacer ribs 961 may be connected to the corresponding first light-blocking strip 941. Each first spacer rib 961 is located between two adjacent third light-emitting units 541. When each third light-emitting unit 541 is controlled to emit light independently, the first spacer ribs 961 can prevent light leakage between adjacent third light-emitting units 541, which is beneficial for forming segmented controlled light-emitting lines, thereby enriching the luminous efficacy of the flat panel lamp.

[0067] Furthermore, the bottom shell 90 may also include a plurality of second spacer ribs 963, which are arranged sequentially at intervals along the extension direction of the second light-blocking strip 943. The second spacer ribs 963 may be approximately perpendicular to the second light-blocking strip 943, and the ends of the second spacer ribs 963 may be connected to the corresponding second light-blocking strip 943. Each second spacer rib 963 is located between two adjacent second light-emitting units 561. When each second light-emitting unit 561 is controlled to emit light independently, the second spacer ribs 963 can prevent light crosstalk between adjacent second light-emitting units 561, which is beneficial for forming segmented controlled light-emitting lines, thereby making the light effect of the flat panel lamp more abundant. For example, different parts of the same light-emitting line can have different brightness parameters (such as color or brightness).

[0068] In this embodiment, the bottom shell 90 may further include a plurality of peripheral walls 98, which are disposed on the side of the bottom wall 92 facing the substrate 51. The plurality of bottom walls 98 are generally connected to the periphery of the bottom wall 92, and are sequentially connected end-to-end to form a mounting cavity 980, which is used to accommodate the light-transmitting shell 10. When the light-transmitting shell 10 is embedded in the mounting cavity 980, the peripheral walls 98 are located outside the light-guiding side 16, that is, on the side of the light-guiding side 16 facing away from the light guide plate. This allows the plurality of peripheral walls 98 to surround the plurality of light-guiding sides 16, preventing light from leaking from the periphery of the light-guiding side 16 and making the outline of the light-emitting line formed by the light-guiding side 16 clearer. Furthermore, the peripheral walls 98 may be made of a non-transparent material, or a light-shielding film may be provided on the peripheral walls 98, thereby effectively preventing light from leaking from the periphery.

[0069] In this embodiment, the bottom wall 92, the first light-blocking strip 941, the first spacer rib 943, the second light-blocking strip 961, the second spacer rib 963, and the peripheral wall 98 of the bottom shell 90 can be assembled or integrally formed. The bottom wall 92, the first light-blocking strip 941, the first spacer rib 943, the second light-blocking strip 961, the second spacer rib 963, and the peripheral wall 98 are each manufactured and then connected together using adhesives or fasteners; alternatively, the bottom wall 92, the first light-blocking strip 941, the first spacer rib 943, the second light-blocking strip 961, the second spacer rib 963, and the peripheral wall 98 can be made from the same material using injection molding or compression molding processes, forming an integral bottom shell 90 structure.

[0070] Please see Figure 18This application also provides a flat panel light device 200, which may include multiple flat panel light fixtures 100 provided in any of the above embodiments. The multiple flat panel light fixtures 100 are adapted to be arranged on a predetermined plane, and the outer peripheral walls of two adjacent flat panel light fixtures 100 can be fitted together. For example, when a flat panel light fixture 100 does not have a bottom shell 90, the outer peripheral walls of the light-transmitting shells 10 of two adjacent flat panel light fixtures 100 can be fitted together or arranged substantially parallel to each other; or, when a flat panel light fixture 100 is equipped with a bottom shell 90, the peripheral walls 98 of the bottom shells 90 of two adjacent flat panel light fixtures 100 can be fitted together or arranged substantially parallel to each other. In this embodiment, the flat panel light fixture 100 may be provided with an insertion interface and a corresponding snap fastener. The insertion interface and the corresponding snap fastener may be provided on the bottom shell 90. Each flat panel light fixture 100 can be snapped into the insertion interface of an adjacent flat panel light fixture 100 by the snap fastener, thereby achieving reliable splicing between multiple flat panel light fixtures 100. By setting up multiple modular flat panel lights 100, different patterns can be spliced ​​together to present a more three-dimensional visual effect.

[0071] This application provides a flat panel lamp and a flat panel lamp device equipped with the lamp. Light emitted from a first light source enters the light guide plate through a light-inlet surface and exits through a light-outlet surface and a light guide panel. Light from a second light source exits through a light guide side. By providing incident light to the light guide plate and light guide side respectively, a combined surface-emitting and edge-emitting light effect can be achieved. Furthermore, the light from the first and second light sources can be independently controlled, facilitating the realization of various light effects. Since the second light source provides incident light solely to the light guide side, the brightness of the light guide side can be customized as needed. When its color or brightness differs from the brightness of the light guide panel corresponding to the first light source, the light-emitting lines on the light guide side are more prominent than the light-emitting surface on the light guide panel. The light-emitting lines, combined with the corresponding light-emitting surface of the light guide plate, can form unique light effects, enriching the light performance of the flat panel lamp.

[0072] In this application specification, certain terms are used to refer to specific components. Those skilled in the art will understand that hardware manufacturers may use different names to refer to the same component. The specification and claims do not distinguish components based on differences in name, but rather on differences in function. The term "comprising" throughout the specification and claims is an open-ended term and should be interpreted as "including but not limited to"; "generally" means that those skilled in the art can solve the technical problem within a certain margin of error and basically achieve the technical effect.

[0073] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "inside", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the purpose of simplifying the description of this application and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0074] In this application, unless otherwise expressly specified or limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or merely surface contact. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0075] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0076] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0077] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A flat panel lamp, characterized in that, include: A light guide plate module, the light guide plate module including a light guide plate, the light guide plate including a light-inlet surface and a light-outlet surface; A light-transmitting housing is provided with a receiving cavity, and the light guide plate module is disposed in the receiving cavity; the light-transmitting housing includes at least two light guide panels and multiple light guide sides, the light guide panels cover the light emitting surface, and the multiple light guide sides are disposed around the light guide plate module; as well as A light source module, comprising a substrate, a light guide strip, a first light source, a second light source, and a third light source, wherein the substrate is disposed on the side of the light guide plate module opposite to the light guide panel; The light guide strip is disposed within the receiving cavity and divides the receiving cavity into at least two receiving chambers, with each light guide plate located in a corresponding receiving chamber; The first light source is disposed on the side of the substrate facing the light guide plate module and is disposed opposite to the light-inlet surface of the light guide plate. The light emitted by the first light source enters the interior of the light guide plate through the light-inlet surface and is emitted through the light-outlet surface and the light guide plate. The second light source is disposed on the side of the substrate away from the light guide plate module; the end of the light guide side corresponding to the second light source is exposed on the side of the substrate away from the light guide plate module, so that the light emitted by the second light source can directly enter the light guide side and exit through the light guide side; The third light source is fixed to the side of the substrate away from the light guide plate module, and the light guide strip passes through the substrate and is exposed on the side of the substrate away from the light guide plate module, so that the light from the third light source can enter the light guide strip.

2. The flat panel lamp as described in claim 1, characterized in that, The flat panel lamp also includes a light-shielding layer, which is located on the side of the light guide facing the interior of the receiving cavity; the light-shielding layer is used to block the light from the light source module so that there is a gap between the light-emitting surface corresponding to the light guide plate and the light-emitting line corresponding to the light guide side.

3. The flat panel lamp as described in claim 2, characterized in that, The light-inlet surface is adjacent to the light-outlet surface, the light-guiding side is spaced apart from the light-inlet surface to form a predetermined gap, the first light source is disposed within the predetermined gap, and the light-shielding layer covers the predetermined gap.

4. The flat panel lamp as described in claim 1, characterized in that, Multiple light-guiding sides are connected end to end to jointly define the receiving cavity.

5. The flat panel lamp as described in claim 4, characterized in that, The light guide plate also includes a back surface and multiple side surfaces. The back surface is opposite to the light emitting surface. The light receiving surface is connected between the back surface and the light emitting surface. The side surfaces are connected between the back surface and the light emitting surface. The light receiving surface and the multiple side surfaces together form the outer wall of the light guide plate. One side surface of the light guide plate is spaced apart from the side surface of the light guide plate adjacent to it. The light guide plate module also includes a reflective layer. The reflective layer is disposed on at least one of the back surface and the side surfaces, and the reflective surface of the reflective layer faces the interior of the light guide plate.

6. The flat panel lamp as described in claim 4, characterized in that, The flat panel lamp also includes at least two diffuser plates spaced apart from each other, the diffuser plates being disposed between the light guide plate and the light guide panel; a light guide gap is formed between two adjacent light guide plates, and the light guide strip is located in the light guide gap; a through groove is formed between two adjacent diffuser plates, the through groove being opposite to and communicating with the corresponding light guide gap, and the light guide strip passing through the corresponding through groove and the corresponding light guide gap.

7. The flat panel lamp as described in claim 4, characterized in that, The number of light guide strips is N, where N is a positive integer greater than or equal to 2; the number of light guide plates is N, and the N light guide plates are distributed sequentially around a predetermined center, with each light guide strip disposed between two adjacent light guide plates.

8. The flat panel lamp as described in claim 7, characterized in that, The number of light guide sides is M, where M is a positive integer greater than or equal to 2 and M is an integer multiple of N; (M / N) light guide sides are sequentially connected between two adjacent light guide strips, so that (M / N) light guide sides and two light guide strips together surround a corresponding light guide plate.

9. The flat panel lamp as described in claim 1, characterized in that, A light guide gap is formed between two adjacent light guide plates; the substrate is provided with a clearance groove, the clearance groove is opposite to and connected to the corresponding light guide gap, and the light guide strip passes through the clearance groove.

10. The flat panel lamp as described in any one of claims 1 to 9, characterized in that, The light-inlet surface is located between the light-outlet surface and the substrate; the first light source includes a plurality of first light-emitting units, which are arranged sequentially at intervals along the extension direction of the light-inlet surface.

11. The flat panel lamp as described in claim 10, characterized in that, The flat panel lamp also includes a bottom shell, which is disposed on the side of the substrate away from the light guide plate module. The bottom shell includes a bottom wall and a light-blocking strip. The bottom wall is disposed at a distance from the substrate, and the light-blocking strip is disposed between the bottom wall and the substrate, and is located on the side of the second light source away from the corresponding light guide side.

12. The flat panel lamp as described in claim 11, characterized in that, The second light source includes a plurality of second light-emitting units, which are arranged sequentially at intervals along the extension direction of the light guide side; the bottom shell also includes a plurality of spacer ribs, which are arranged sequentially at intervals, with each spacer rib located between two adjacent second light-emitting units.

13. The flat panel lamp as described in claim 11, characterized in that, The bottom shell also includes multiple peripheral walls, which are connected to the side of the bottom wall facing the substrate. The multiple peripheral walls are connected end to end to form a mounting cavity. The light-transmitting shell is embedded in the mounting cavity, and the multiple peripheral walls are arranged around the multiple light-guiding sides.

14. A flat panel lamp device, characterized in that, It includes a plurality of flat panel lamps as described in any one of claims 1 to 13, wherein the plurality of flat panel lamps are adapted to be arranged on a predetermined plane, and the outer peripheral walls of two adjacent flat panel lamps are fitted together.

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