Light-emitting module and screen hanging lamp

Abstract

According to the light-emitting module and the screen hanging lamp, the light-emitting module comprises a shell, a first light-emitting array, a second light-emitting array and a third light-emitting array, the first light-emitting array, the second light-emitting array and the third light-emitting array are arranged in the shell, the third light-emitting array is arranged in the horizontal direction, and the first light-emitting array is arranged at one end of the third light-emitting array. The second light-emitting array is arranged at the other end of the third light-emitting array, and the arrangement direction of the first light-emitting array and the arrangement direction of the second light-emitting array are different from the arrangement direction of the third light-emitting array. The light emitting power of the first light emitting array is larger than the light emitting power of the third light emitting array, and the light emitting power of the second light emitting array is larger than the light emitting power of the third light emitting array. Therefore, the light-emitting module can provide uniform and soft light rays in a wider range in the horizontal direction, and ambient light comfortable for human eyes is provided.

Description

Technical Field

[0001] The utility model relates to a light-emitting module and a screen hanging lamp, in particular to a light-emitting module and a screen hanging lamp which provide uniform illumination light in a horizontal direction. Background Art

[0002] Common lamps that provide area lighting often have light sources designed to emit light in the form of Lambertian luminescence. Figure 1 , depicting the illumination pattern provided by a light source in the form of Lambertian luminescence. Specifically, Lambertian luminescence is a light pattern produced by a light source on an illuminated surface, where the intensity is inversely proportional to the square of the distance from the light source's center of incidence. Human eyes are arranged horizontally, meaning their horizontal field of view is larger than their vertical field of view. When a single light source is used to provide range illumination, people tend to perceive strong horizontal brightness variations, which can affect viewing comfort.

[0003] Therefore, how to provide a uniform light source that is fully expanded in the horizontal direction to optimize the viewing comfort of the human eye has become an important issue in the design of ambient lighting. Utility Model Content

[0004] The purpose of the utility model is to provide a light-emitting module and a screen hanging lamp to provide comfortable and uniform lighting brightness for human eyes in the horizontal direction.

[0005] To achieve the above-mentioned objectives, the present invention provides a light-emitting module for providing background lighting, comprising a housing, and a first light-emitting array, a second light-emitting array, and a third light-emitting array respectively disposed in the housing, wherein the third light-emitting array is arranged in a horizontal direction, the first light-emitting array and the second light-emitting array are respectively disposed at opposite ends of the third light-emitting array, and the arrangement direction of the first light-emitting array and the second light-emitting array is different from the arrangement direction of the third light-emitting array;

[0006] The luminous power density of the first light-emitting array is greater than the luminous power density of the third light-emitting array, and the luminous power density of the second light-emitting array is greater than the luminous power density of the third light-emitting array.

[0007] Preferably, the first light emitting array and the second light emitting array are respectively perpendicular to the third light emitting array.

[0008] Further preferably, it further comprises a U-shaped circuit board, the U-shaped circuit board having a first portion, a second portion and a third portion, wherein the first portion and the second portion are respectively perpendicular to the third portion;

[0009] The first light emitting array, the second light emitting array and the third light emitting array are correspondingly disposed on the first portion, the second portion and the third portion of the circuit board.

[0010] Further preferably, the first light-emitting array, the second light-emitting array, and the third light-emitting array are arranged on the same side of the circuit board.

[0011] Preferably, the device further comprises a fourth light emitting array and a fifth light emitting array, wherein the fourth light emitting array is arranged between the first light emitting array and the third light emitting array, and the fifth light emitting array is arranged between the second light emitting array and the third light emitting array;

[0012] The fourth light emitting array is inclined to the first light emitting array and the third light emitting array, and the fifth light emitting array is inclined to the second light emitting array and the third light emitting array.

[0013] Further preferably, the luminous power density of the fourth light-emitting array is greater than or equal to the luminous power density of the first light-emitting array, and the luminous power density of the fifth light-emitting array is greater than or equal to the luminous power density of the second light-emitting array.

[0014] Preferably, a reflective member is further included, which is arranged on the inner wall of the shell, and the reflective member has a first reflective surface, a second reflective surface and a third reflective surface, and corresponds to the first light-emitting array, the second light-emitting array and the third light-emitting array respectively; the first reflective surface, the second reflective surface and the third reflective surface are respectively continuous curved surfaces.

[0015] Further preferably, the device further comprises a fourth light-emitting array disposed between the first light-emitting array and the third light-emitting array, and a fifth light-emitting array disposed between the second light-emitting array and the third light-emitting array; the reflector further comprises a fourth reflective surface and a fifth reflective surface, corresponding to the fourth light-emitting array and the fifth light-emitting array, respectively;

[0016] The fourth reflective surface smoothly transitions with the first reflective surface, and the fourth reflective surface smoothly transitions with the third reflective surface; the fifth reflective surface smoothly transitions with the second reflective surface, and the fifth reflective surface smoothly transitions with the third reflective surface; and each reflective surface of the reflective element has a consistent curved shape relative to its corresponding light-emitting array.

[0017] More preferably, it is at least arranged on the peripheral side of the edge of the reflector.

[0018] In order to achieve the above object, the present invention also provides a screen hanging lamp, comprising:

[0019] a lamp body for mounting on a display; and

[0020] The light emitting module is installed on the lamp body, and is used to emit light toward the rear of the display to provide background lighting.

[0021] Compared with the prior art, the light-emitting module and screen hanging lamp provided by the present invention are used to provide background lighting, and include a housing, and a first light-emitting array, a second light-emitting array, and a third light-emitting array respectively disposed in the housing. The third light-emitting array is arranged in the horizontal direction, and the first light-emitting array and the second light-emitting array are respectively disposed at opposite ends of the third light-emitting array, and the arrangement directions of the first light-emitting array and the second light-emitting array are respectively different from the arrangement direction of the third light-emitting array. The luminous power density of the first light-emitting array is greater than that of the third light-emitting array, and the luminous power density of the second light-emitting array is greater than that of the third light-emitting array. In this way, the light-emitting module can provide uniform and soft lighting in a wider range in the horizontal direction, providing comfortable ambient light for the human eye. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram of an illumination light pattern provided by a light source in the form of Lambertian luminescence in the background art;

[0023] Figure 2 This is a schematic diagram of the three-dimensional structure of a screen hanging lamp installed on a display in one embodiment of the present utility model;

[0024] Figure 3 This is a front structural diagram of a screen hanging lamp installed on a display in one embodiment of the present invention;

[0025] Figure 4 This is a schematic diagram of the exploded structure of a light-emitting module in another embodiment of the present invention;

[0026] Figure 5 This is a schematic structural diagram of some parts of a light-emitting module in another embodiment of the present invention;

[0027] Figure 6 for Figure 5 Schematic diagram of the cross-sectional structure at AA in the middle;

[0028] Figure 7 Schematic diagram of the structure of multiple light-emitting arrays in another embodiment of the present invention;

[0029] Figure 8 This is a front structural schematic diagram of a screen hanging lamp in another embodiment of the present invention installed on a display. DETAILED DESCRIPTION

[0030] In order to provide a further understanding of the purpose, structure, features, and functions of the present invention, the present invention is described in detail below with reference to the embodiments.

[0031] Certain terms are used throughout the specification and claims to refer to specific components. Those skilled in the art will understand that manufacturers may use different terms to refer to the same component. This specification and claims do not distinguish components by name, but rather by their functional differences. Throughout the specification and claims, the term "including" is open-ended and should be interpreted as meaning "including, but not limited to."

[0032] In a work scenario requiring lighting, the user sits in front of a workbench, with a lighting fixture projecting light toward the desktop area in front of the user. At this point, the back of the workbench is typically a wall, a workstation baffle, or the like, and the lighting range of most lighting fixtures does not cover the back of the workbench. A light-gap area is formed between the lighting fixture and the solid surface, which serves as the background environment for the user's work. For example, in a scenario where a user is working on a computer at a workbench, the monitor screen or a screen hanging lamp mounted above the monitor typically illuminates the desktop in front of the monitor, while the ambient light behind the monitor is significantly darker than that in front of the monitor. This resulting difference in light intensity can easily cause visual fatigue in the user. Therefore, a light-emitting module is provided that can illuminate the background environment behind the monitor, thereby compensating for the aforementioned light intensity difference. The light-emitting module can be a screen hanging lamp mounted above the monitor or can be disposed on a housing on the back of the monitor, but practical applications are not limited thereto.

[0033] Please refer to Figures 2 to 3 , Figure 2 A schematic diagram of the three-dimensional structure of a screen hanging lamp installed on a display 300 in an embodiment of the present invention is shown. Figure 3 FIG. 1 shows a front view of a screen hanging lamp installed on a display 300 in an embodiment of the present invention. Figure 2As shown, the screen hanging lamp includes a lamp body 200, which is designed to be clamped above the upper surface of the display 300 and provide lighting for the main reading area (i.e., the first area S1) in front of the display 300. The screen hanging lamp also includes a light-emitting module 100, which is used to be installed on the lamp body 200 and used to provide fill light to the rear area of the display 300 (i.e., the second area S2) to avoid the problem of visual fatigue caused by the large difference in brightness between the ambient light in front of the display 300 and the ambient light behind it. It should be noted that the front of the display 300 is the direction of the display 300 facing the user, and the front is usually the display screen of the display 300; the rear of the display 300 is the direction corresponding to the back shell of the display 300, which is usually close to the wall. In addition, the words "front", "back", "left", "right", "up", "down", etc. mentioned in this article to indicate the direction are all adapted to the usual directions of the display 300 in actual application scenarios and will not be repeated.

[0034] Please refer to Figure 4 and Figure 5 , Figure 4 FIG. 1 shows an exploded structural diagram of a light emitting module 100 in another embodiment of the present invention. Figure 5 A structural schematic diagram of some parts of a light-emitting module 100 in another embodiment of the present invention is depicted, and the light-emitting module 100 includes a shell 10, a light-emitting array 20 and a reflector 30. The shell 10 is used to accommodate and carry the light-emitting array 20 and the reflector 30. The shell 10 has a light outlet 11, and preferably, the light outlet 11 can be covered with a light-transmitting cover 11c. The light-emitting array 20 is arranged adjacent to the light outlet 11, and the light outlet 11 is arranged on the outside of the light-emitting array 20. The reflector 30 is arranged opposite to the light-emitting array 20 and the light outlet 11 to reflect the light emitted by the light-emitting array 20 toward the light outlet 11, and transmit it outward from the light outlet 11 to form range lighting.

[0035] In this embodiment, the light array 20 is coupled to the circuit board 20P, and can be coupled to the main control circuit board in the lamp body 200 through the power terminals on the circuit board 20P, or the circuit board 20P can also be the main control circuit board 20P, but the actual application is not limited to this. Specifically, in this embodiment, the light module 100 is used in conjunction with the lamp body 200; in other embodiments, the light module 100 can also be used in conjunction with other objects (such as a housing provided on the back of the display 300) or independently; the actual application is not limited to this. In this embodiment, the light module 100 can be coupled to the main control circuit board in the lamp body 200, for example, by means of a cable or a pogo pin connector. The main control circuit board can also determine the size or proportion of the current / voltage allocated to the light-emitting module 100 based on the current / voltage of other power-consuming modules in the lamp body 200; in other embodiments, the processing unit on the main control circuit board can also be controlled, for example, the user can control the processing unit through an infrared or Bluetooth remote control, buttons or levers set on the lamp body 200, etc., so that the processing unit generates a control signal and adjusts the luminous brightness, color temperature, etc. of the light-emitting module 100; however, actual applications are not limited to this.

[0036] In this embodiment, if Figure 7 As shown, the light array 20 includes a first light array 20a, a second light array 20b, and a third light array 20c. The third light array 20c is arranged in a horizontal direction. The first light array 20a and the second light array 20b are symmetrically arranged at opposite ends of the third light array 20c, and the arrangement direction of the first light array 20a and the second light array 20b is different from the arrangement direction of the third light array 20c. The light arrays 20a, 20b, and 20c are arranged in a direction, which means that the multiple light-emitting units included in the light array are arranged in the direction, or the light array is a long strip, and the long strip light array is arranged in the direction. Furthermore, the first light array 20a and the second light array 20b are arranged in parallel, and the first light array 20a and the second light array 20b are respectively perpendicular to the third light array 20c.

[0037] In one embodiment, the light emitting module 100 further includes a U-shaped circuit board 20P. Figure 7As shown, the circuit board 20P may have a first portion, a second portion, and a third portion, with the first portion and the second portion being perpendicular to the third portion. A first light-emitting array 20a, a second light-emitting array 20b, and a third light-emitting array 20c are respectively disposed on the first portion, the second portion, and the third portion of the circuit board 20P. Preferably, the first light-emitting array 20a, the second light-emitting array 20b, and the third light-emitting array 20c are disposed on the same side of the circuit board so as to emit light toward the same side. Thus, the first light-emitting array 20a, the second light-emitting array 20b, and the third light-emitting array 20c on the circuit board 20P collectively form a U-shaped light-emitting array. In other embodiments, the U-shaped circuit board is formed by bending a flexible strip circuit board and further secured to a housing to maintain its shape. The first light-emitting array 20a, the second light-emitting array 20b, and the third light-emitting array 20c are disposed on the same side of the flexible strip circuit board so as to emit light toward the outside of the U-shape formed by the light-emitting arrays 20a, 20b, and 20c.

[0038] The reflector 30 is provided on the inner wall of the housing 10 and has a first reflective surface, a second reflective surface and a third reflective surface, which correspond to the first light emitting array 20a, the second light emitting array 20b and the third light emitting array 20c respectively; the first reflective surface, the second reflective surface and the third reflective surface are respectively continuous curved surfaces. Preferably, the curved shapes of the reflective surfaces of the reflector 30 relative to the corresponding light emitting array are consistent, and the cross-sectional shape thereof is as follows: Figure 6 As shown, each reflecting surface of the reflecting member 30 is a continuous curved surface and has an inner end side 30a and an outer end side 30b opposite to each other. Figure 4 and Figure 6 As shown, Figure 4 The first reflecting surface marked is the first light emitting array 20a. Figure 6 The third reflective surface corresponding to the third light emitting array 20c is marked. The inner end side 30a of each reflective surface is arranged adjacent to the light emitting array corresponding to the reflective surface, and the corresponding outer end side 30b extends toward the light outlet 11 relative to the inner end side. In addition, the curved shape of each reflective surface relative to the corresponding light emitting array is consistent. In other words, with each light emitting array as the base point, the corresponding reflective surface is a continuous inverted U-shaped arc surface that spreads from the inside to the outside and has the same shape. Figure 6Taking the third light-emitting array 20c and its corresponding third reflective surface as an example, the inner end 30a of the third reflective surface is disposed adjacent to the inner side of the third light-emitting array 20c (the negative side of the Y axis in the figure), and the outer end 30b of the third reflective surface gradually curves and extends toward the outer side of the housing 10 (the negative direction of the X axis and the positive direction of the Y axis) at the light outlet 11 relative to the inner end 30a. The multiple light rays emitted by the third light-emitting array 20c are respectively reflected to the light outlet 11 at different positions of the third reflective surface. The third reflective surface, being a continuously curved surface, can cause the multiple light rays to be reflected at different angles. The remaining four light-emitting arrays are similarly configured such that the light rays emitted by the first light-emitting array 20a, the second light-emitting array 20b, the third light-emitting array 20c, the fourth light-emitting array 20d, and the fifth light-emitting array 20e extending in different directions are reflected by the respective reflective surfaces of the reflector 30 to the light outlet 11, thereby obtaining light with more uniform brightness and softer brightness at the light outlet 11 and projecting it out of the light-emitting module 100. In addition, the reflection surfaces transition smoothly to obtain a light pattern with a smooth transition in illumination intensity. The reflection member 30 may be an aluminum sheet or may have a reflective coating, but the present invention is not limited thereto.

[0039] In this embodiment, the luminous power densities of the first and second light-emitting arrays 20a, 20b, and third light-emitting array 20c differ to adjust the ratio of the horizontal and vertical illumination ranges of the range illumination. The luminous power density of the first light-emitting array 20a is greater than or equal to that of the third light-emitting array 20c, and the luminous power density of the second light-emitting array 20b is greater than or equal to that of the third light-emitting array 20c. In one embodiment, the luminous power densities of both the first and second light-emitting arrays are greater than that of the third light-emitting array 20c. In one embodiment, the luminous power density of the third light-emitting array 20c is 10% to 30% or 15% to 25% of the luminous power density of the first light-emitting array 20a, and the luminous power density of the third light-emitting array 20c is 10% to 30% or 15% to 25% of the luminous power density of the second light-emitting array 20b. This provides a relatively wider horizontal illumination range, making viewing more comfortable for the human eye. The luminous power density of the first light-emitting array 20a can be equal to or different from the luminous power density of the second light-emitting array 20b. In one embodiment, the luminous power density of the first light-emitting array 20a is substantially equal to the luminous power density of the second light-emitting array 20b. The difference between the luminous power density of the first light-emitting array 20a and the luminous power density of the second light-emitting array 20b can be within 3% or within 1%. For example, if the luminous power density of the first light-emitting array 20a is 9.0×10-2 W / cm, the luminous power density of the second light-emitting array 20b can be within the range of 8.73×10-2 W / cm to 9.27×10-2 W / cm, or within the range of 8.91×10-2 W / cm to 9.09×10-2 W / cm. For example, in this embodiment, the luminous power density of the first light-emitting array 20a and the second light-emitting array 20b is within a range of 8.0×10-2 W / cm2 to 10×10-2 W / cm2, or 8.5×10-2 W / cm2 to 9.5×10-2 W / cm2, while the luminous power of the third light-emitting array 20c is within a range of 1.0×10-2 W / cm2 to 3.0×10-2 W / cm2, or 1.5×10-2 W / cm2 to 2.5×10-2 W / cm2, although practical applications are not limited thereto. When the luminous power densities of the first light-emitting array 20a, the second light-emitting array 20b, and the third light-emitting array 20c are within the aforementioned numerical ranges, the light-emitting module provided by the present invention can provide uniform and soft light over a wider range in the horizontal direction, providing ambient light that is comfortable for the human eye.

[0040] In other embodiments, the curvature of each reflective surface of the reflector 30 can also be set to adjust the ratio of the illumination range in the horizontal direction and the vertical direction. The curvature of the third reflective surface in the reflector 30 is greater than or equal to the curvature of the first reflective surface and the second reflective surface; preferably, the curvature of the third reflective surface in the reflector 30 is greater than the curvature of the first reflective surface and the second reflective surface, so as to obtain a relatively wider illumination range in the horizontal direction, making it more comfortable for human eyes to watch. In this embodiment, the light emitted by the light-emitting arrays 20a, 20b and 20c is reflected by the reflector 30 and transmitted from the light-transmitting cover 11c, and finally forms a fused light pattern, such as Figure 2 and Figure 3 As shown, relative Figure 1 As for the light pattern of the light emitting unit, this embodiment has a soft light in a wider range in the horizontal direction. Figure 2 and Figure 3 The light pattern boundary (the part indicated by the dotted line) is not the location where the illuminance changes suddenly, but represents the critical position with the same illuminance value. The actual illuminance gradually decreases and transitions smoothly from the center of the light source to the outside.

[0041] In another preferred embodiment, Figure 7 As shown, the light-emitting array 20 also includes a fourth light-emitting array 20d and a fifth light-emitting array 20e. The fourth light-emitting array 20d is arranged between the first light-emitting array 20a and the third light-emitting array 20c, and the fifth light-emitting array 20e is arranged between the second light-emitting array 20b and the third light-emitting array 20c. Among them, the reflector 30 also has a fourth reflective surface and a fifth reflective surface, which correspond to the fourth light-emitting array 20d and the fifth light-emitting array 20e respectively. That is, the fourth reflective surface is located between the first reflective surface and the third reflective surface, and the fifth reflective surface is located between the second reflective surface and the third reflective surface, and the adjacent reflective surfaces have a smooth transition. In addition, the curved shape of each reflective surface relative to its corresponding light-emitting array is consistent. Preferably, as Figure 7 As shown, the fourth light array 20d is tilted to the first light array 20a and the third light array 20c, and the fifth light array 20e is tilted to the second light array 20b and the third light array 20c. In this embodiment, the light emitted by the light arrays 20a, 20b, 20c, 20d and 20e is reflected by the reflector 30 and transmitted through the light-transmitting cover 11c, finally forming a fused light pattern, as shown in FIG. Figure 8 As shown, the light pattern of this embodiment is fuller and more rounded, and the user feels more comfortable.

[0042] Preferably, the luminous power density of the fourth light-emitting array 20d is greater than or equal to the luminous power density of the first light-emitting array 20a, and the luminous power density of the fifth light-emitting array 20e is greater than or equal to the luminous power density of the second light-emitting array 20b. In one embodiment, the luminous power density of the fourth light-emitting array 20d is greater than the luminous power density of the first light-emitting array 20a and the second light-emitting array 20b, and the luminous power density of the fifth light-emitting array 20e is greater than the luminous power density of the first light-emitting array 20a and the second light-emitting array 20b. In another embodiment, the luminous power density of the first light-emitting array 20a and / or the second light-emitting array 20b is 95% to 98% or 90% to 100% of that of the fourth light-emitting array 20d, and the luminous power density of the first light-emitting array 20a and / or the second light-emitting array 20b is 95% to 98% or 90% to 100% of that of the fifth light-emitting array 20e. The luminous power density of the fourth light-emitting array 20d may be equal to or different from the luminous power density of the fifth light-emitting array 20e. In one embodiment, the luminous power density of the fourth light-emitting array 20d is substantially equal to the luminous power density of the fifth light-emitting array 20e. The difference between the luminous power density of the fourth light-emitting array 20d and the luminous power density of the fifth light-emitting array 20e can be within 3% or within 1%. For example, if the luminous power density of the fourth light-emitting array 20d is 9.0×10-2 W / cm, the luminous power density of the fifth light-emitting array 20e can be within the range of 8.73×10-2 W / cm to 9.27×10-2 W / cm, or within the range of 8.91×10-2 W / cm to 9.09×10-2 W / cm. For example, in this embodiment, the luminous power density of the first light-emitting array 20a and the second light-emitting array 20b is in the range of 8.0×10-2 W / cm-10×10-2 W / cm, or 8.5×10-2 W / cm-9.5×10-2 W / cm, the luminous power density of the fourth light-emitting array 20d and the fifth light-emitting array 20e is in the range of 8.0×10-2 W / cm-10×10-2 W / cm, or 9×10-2 W / cm-9.5×10-2 W / cm, and the luminous power of the third light-emitting array 20c is in the range of 1.0×10-2 W / cm-3.0×10-2 W / cm, or 1.5×10-2 W / cm-2.5×10-2 W / cm, but actual applications are not limited thereto. When the luminous power density of the first light-emitting array 20a, the second light-emitting array 20b, the third light-emitting array 20c, the fourth light-emitting array 20d, and the fifth light-emitting array 20e is within the aforementioned numerical range, the light-emitting module provided by the present invention can provide uniform and soft lighting over a wider range in the horizontal direction, providing an ambient light that is comfortable for the human eye.

[0043] In this embodiment, the light shield 11c covers the light outlet 11. As shown in the figure, the projection of the light shield 11c in the YZ plane is an inverted U-shape. In another embodiment, the light shield 11c can also simultaneously cover the adjacent light arrays 20a, 20b, and 20c located inside the light outlet 11. In other words, in the YZ plane projection, the projection of the light outlet 11 and the projections of the light arrays 20a, 20b, and 20c are located within the projection range of the light shield 11c. In other embodiments, the light shield 11c can also simultaneously cover the space enclosed by the light arrays 20a, 20b, and 20c. In other words, the projection of the light shield 11c in the YZ plane is a chamfered rectangular shape. The present invention is not limited to this. The light-transmitting cover 11c is translucent, and the light reflected to the light outlet 11 can then pass through the light-transmitting cover 11c and be projected out of the light-emitting module 100. Preferably, the light-transmitting cover 11c can be made of a translucent or semi-translucent plastic material, with scattering particles inside the material or a scattering coating on the surface to increase the optical effect of the diffused light and improve the illumination and uniformity of the light projected by the light-emitting module 100 onto the wall.

[0044] In a preferred embodiment, the light emitting module 100 further includes a light blocking member 40, such as Figure 5 As shown, the light blocking member 40 is at least arranged around the edge of the reflector 30, so that the light emitted by the light array 20 can be prevented from being reflected by the housing 10 near the reflector 30, thereby forming an unexpected light pattern, and the light can also be prevented from leaking to other parts of the housing 10. In a preferred embodiment, as shown in FIG. Figure 5 As shown, the light blocking member 40 further extends from the edge of the reflective member 30 toward the outside thereof to provide a wider coverage area, for example, completely covering the inner wall of the housing 10. The light blocking member 40 is preferably made of a light-absorbing material such as a light-absorbing sponge 40 or black tape. The light-absorbing sponge 40 and other materials are also flexible and can easily fill gaps within the housing 10.

[0045] In summary, the light-emitting module and screen hanging lamp provided by the present invention include a shell, and a first light-emitting array, a second light-emitting array, and a third light-emitting array respectively arranged in the shell. The third light-emitting array is arranged in the horizontal direction, the first light-emitting array is arranged at one end of the third light-emitting array, and the second light-emitting array is arranged at the other end of the third light-emitting array. The arrangement directions of the first light-emitting array and the second light-emitting array are respectively different from the arrangement direction of the third light-emitting array. The luminous power of the first light-emitting array is greater than the luminous power of the third light-emitting array, and the luminous power of the second light-emitting array is greater than the luminous power of the third light-emitting array. In this way, the light-emitting module can provide uniform and soft lighting in a wider range in the horizontal direction, providing comfortable ambient light for the human eye.

[0046] The present invention has been described with reference to the above embodiments. However, these embodiments are merely exemplary embodiments of the present invention. It should be noted that the disclosed embodiments do not limit the scope of the present invention. On the contrary, modifications and improvements made without departing from the spirit and scope of the present invention are within the scope of patent protection of the present invention.

Claims

1. A light emitting module for providing background lighting, characterized in that: The device comprises a housing, and a first light-emitting array, a second light-emitting array, and a third light-emitting array respectively disposed in the housing, wherein the third light-emitting array is arranged in a horizontal direction, the first light-emitting array and the second light-emitting array are respectively disposed at opposite ends of the third light-emitting array, and the arrangement direction of the first light-emitting array and the second light-emitting array is different from the arrangement direction of the third light-emitting array; The luminous power density of the first light-emitting array is greater than the luminous power density of the third light-emitting array, and the luminous power density of the second light-emitting array is greater than the luminous power density of the third light-emitting array.

2. The light emitting module according to claim 1, wherein: The first light emitting array and the second light emitting array are respectively perpendicular to the third light emitting array.

3. The light emitting module according to claim 2, wherein: Also included is a U-shaped circuit board, the U-shaped circuit board having a first portion, a second portion, and a third portion, wherein the first portion and the second portion are respectively perpendicular to the third portion; The first light emitting array, the second light emitting array and the third light emitting array are respectively and correspondingly disposed on the first portion, the second portion and the third portion of the circuit board.

4. The light emitting module according to claim 3, wherein: The first light emitting array, the second light emitting array and the third light emitting array are arranged on the same side of the circuit board.

5. The light emitting module according to claim 1, wherein: The system further includes a fourth light emitting array and a fifth light emitting array, wherein the fourth light emitting array is disposed between the first light emitting array and the third light emitting array, and the fifth light emitting array is disposed between the second light emitting array and the third light emitting array; The fourth light emitting array is inclined to the first light emitting array and the third light emitting array, and the fifth light emitting array is inclined to the second light emitting array and the third light emitting array.

6. The light emitting module according to claim 5, wherein: The luminous power density of the fourth light-emitting array is greater than or equal to the luminous power density of the first light-emitting array, and the luminous power density of the fifth light-emitting array is greater than or equal to the luminous power density of the second light-emitting array.

7. The light emitting module according to claim 1, wherein: It also includes a reflective member, which is arranged on the inner wall of the shell, and has a first reflective surface, a second reflective surface and a third reflective surface, which correspond to the first light-emitting array, the second light-emitting array and the third light-emitting array respectively; the first reflective surface, the second reflective surface and the third reflective surface are respectively continuous curved surfaces.

8. The light emitting module according to claim 7, wherein: The reflector further comprises a fourth light-emitting array disposed between the first light-emitting array and the third light-emitting array, and a fifth light-emitting array disposed between the second light-emitting array and the third light-emitting array; the reflector further comprises a fourth reflective surface and a fifth reflective surface, which correspond to the fourth light-emitting array and the fifth light-emitting array, respectively; The fourth reflective surface smoothly transitions with the first reflective surface, and the fourth reflective surface smoothly transitions with the third reflective surface; the fifth reflective surface smoothly transitions with the second reflective surface, and the fifth reflective surface smoothly transitions with the third reflective surface; and each reflective surface of the reflective element has a consistent curved shape relative to its corresponding light-emitting array.

9. The light emitting module according to claim 7, wherein: It also includes a light blocking member, which is at least arranged on the edge of the reflecting member.

10. A screen hanging lamp, characterized in that: include: The main body of the lamp is used to be installed on the display; as well as The light-emitting module according to any one of claims 1 to 9 is mounted on the lamp body, and the light-emitting module is used to emit light toward the rear of the display to provide background lighting.

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