Lateral entrance type curved surface backlight source device

Abstract

The utility model aims to provide a side entry type curved surface backlight source device which solves the problem that a curved surface backlight jig is single in curvature, a light source assembly comprises a light bar and a heat conduction strip, the heat conduction strip is arranged around a back plate, the light bar is arranged on the inner side of the heat conduction strip, and a front frame is connected with the heat conduction strip in an attached mode. Light rays of the lamp beads point to the side wall of the light guide plate, and the light guide plate is used for reflecting lamplight; due to the fact that the back plate and the light guide plate are provided with the curved surfaces, the two curved surfaces have various curvatures, the two curvatures are consistent, the front frame is connected with the heat conduction strip in an attached mode, the front frame is bent and has various curvatures, the display screen is arranged on the front frame, the curvature of the display screen is matched with the curvature of the front frame, and therefore the visual effect of the glasses is better. Therefore, the problem that the curvature of a curved backlight jig is single is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of backlight sources, in particular to a side-entry curved backlight source device. Background Art

[0002] An edge-entry curved display is a special type of display that combines a curved screen design with edge-entry backlight technology. The main feature of this display is that the screen is curved, which can provide a wider field of view so that users can see more content, especially when playing games or watching movies, for a better sense of immersion.

[0003] Due to the design of the curved screen, the user's eyes do not need to move excessively to focus on the content on the screen, thereby reducing eye fatigue. The edge-entry backlight technology can make the display thinner and save space, so the curved screen has a very broad market.

[0004] The huge demand for curved screens has also brought about diversified demands for curved backlight fixtures, such as those with different curvatures, different sizes, different placement methods, and even multiple curvatures in segments of the same screen. Utility Model Content

[0005] The utility model aims to provide a side-entry curved backlight source, which solves the problem of a single curvature of a curved backlight fixture.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] The utility model provides an edge-lit curved backlight source, comprising a support assembly and a light source assembly, wherein the support assembly comprises a frame, a back plate and a front frame, and the back plate is arranged on the frame;

[0008] The light source assembly includes a light bar and a heat-conducting bar, the heat-conducting bar is arranged around the back plate, the light bar is arranged inside the heat-conducting bar, and the front frame is fitted and connected to the heat-conducting bar;

[0009] The light source assembly further includes a light guide plate. The inner surface of the light bar has a plurality of lamp beads and a plurality of pillars. The lamp beads and the pillars are located on the same side. The light guide plate is arranged inside the light bar. The plurality of pillars support the outer periphery of the light guide plate. The length of the pillars is longer than that of the lamp beads. The light of the lamp beads is directed to the side wall of the light guide plate. The light guide plate is used to reflect light.

[0010] The light guide plate and the back plate both have curved surfaces, and the curved surface of the back plate includes multiple curvatures.

[0011] Optionally, the back panel curved surface includes a straight line area, a polyline area and a curved surface area, the curved surface area is located between two polyline areas, the two straight line areas are located on both sides of the back panel, the polyline area is located between the straight line area and the curved surface area, and the polyline area is formed by bending.

[0012] Furthermore, the curvature of the light guide plate is consistent with the curvature of the back plate, and the bending directions of the light guide plate and the back plate are consistent.

[0013] Optionally, the light source assembly includes reflective paper and an optical film, the reflective paper is arranged between the light guide plate and the back plate, the optical film is laid flat on the light guide plate, and the light guide plate is located between the reflective paper and the optical film.

[0014] Optionally, the light source assembly further includes a protective cover, which is disposed on the top of the back plate, and the light bar is within the coverage of the protective cover.

[0015] Furthermore, a plurality of heat dissipation holes are provided on the side wall of the protective cover.

[0016] Optionally, the light bar has two settings: vertical and horizontal. In the vertical direction, the pillars on the light bar are 0.4-0.6 mm longer than the lamp beads, and in the horizontal direction, the pillars on the light bar are 0.4-0.6 mm longer than the lamp beads.

[0017] Optionally, the support assembly further comprises a plurality of curved reinforcement strips, which are evenly arranged up and down in conformity with the curved surface of the back panel, and the reinforcement strips and the light guide plate are respectively located on two inner sides of the back panel.

[0018] Furthermore, the support assembly further includes a first connecting rod and a second connecting rod, wherein the first connecting rod and the second connecting rod are respectively connected to two sides of the plurality of reinforcing bars, and the first connecting rod and the second connecting rod are connected to the frame.

[0019] Furthermore, the support assembly also includes a first baffle and a second baffle, the reinforcement strip is located on the same side as the first baffle and the second baffle, the first baffle and the second baffle are arranged on the frame, a first air hole is provided on the first baffle, and a second air hole is provided on the second baffle, and the first air hole and the second air hole are both aligned with the curved surface of the back panel.

[0020] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0021] The utility model discloses a side-entry curved backlight source device. Since the back panel and the light guide plate have curved surfaces, the curvatures of the two curved surfaces are various and consistent. The front frame is fitted and connected to the heat conductive strip. The front frame is also curved with various curvatures. The front frame is mounted with a display screen. The curvatures of the front frame and the back panel are determined according to the curvature of the light guide plate. The curvature of the display screen matches the curvature of the front frame. This will provide a better visual effect of the glasses, thereby solving the problem of the single curvature of the curved backlight fixture. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. In the accompanying drawings:

[0023] Figure 1 This is a three-dimensional view of an edge-lit curved backlight device according to a preferred embodiment of the present utility model;

[0024] Figure 2 yes Figure 1 Partial exploded view of the light source assembly;

[0025] Figure 3 This is a diagram showing the relationship between the position of the light bar, the heat conducting bar and the light guide plate;

[0026] Figure 4 yes Figure 1 A perspective view of the light source assembly shown;

[0027] Figure 5 yes Figure 4 A bottom view of the light source assembly shown;

[0028] Figure 6 yes Figure 1 A stereogram from another perspective is shown.

[0029] The description of the accompanying drawings is as follows:

[0030] 1. Support assembly; 2. Light source assembly; 11. Frame; 12. Back panel; 13. Front frame; 14. Reinforcement strip;

[0031] 15. First connecting rod; 16. Second connecting rod; 17. First baffle; 18. Second baffle; 20. Heat dissipation holes; 21. Light bar; 22. Heat conduction strip; 23. Circuit board; 24. Light guide plate; 25. Lamp beads; 26. Support; 27. Reflective paper; 28. Optical film; 29. ​​Protective cover; 121. Straight line area; 122. Polyline area; 123. Arc area;

[0032] 170, first air hole; 180, second air hole. DETAILED DESCRIPTION

[0033] The following is a clear and complete description of the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0034] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0035] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0036] like Figure 1 and Figure 2 and Figure 3 As shown, an edge-type curved backlight device includes a support component 1 and a light source component 2. The light source component 2 is arranged on the support component 1 and is used to emit light.

[0037] The support assembly 1 includes a frame 11 , a back plate 12 and a front frame 13 , wherein the back plate 12 is disposed on the frame 11 .

[0038] The light source assembly 2 includes a light bar 21 and a thermal conductive bar 22. The upper and lower sides of the back panel 12 are curved surfaces. The thermal conductive bar 22 is arranged on the curved surface of the recessed portion of the back panel 12. The thermal conductive bar 22 is arranged around the back panel 12. The thermal conductive bar 22 is arranged in contact with the back panel 12. The thermal conductive bar 22 encloses an area. The light source assembly 2 also includes a circuit board 23. The circuit board 23 and the thermal conductive bar 22 are arranged on the back panel 12 with their backs facing each other. The circuit board 23 is electrically connected to the light bar 21, and the circuit board 23 is used to connect to a power supply.

[0039] The light bar 21 is arranged inside the heat conducting bar 22 . The light bar 21 and the heat conducting bar 22 are connected together by heat conducting adhesive. The heat conducting bar 22 is made of aluminum and also plays a role in heat dissipation.

[0040] The light bar 21 is electrically connected to the circuit board 23, and the circuit board 23 is used to connect to the power supply. The front frame 13 is fitly connected to the heat conductive bar 22. The light source assembly 2 also includes a light guide plate 24. The inner surface of the light bar 21 has multiple lamp beads 25 and multiple pillars 26. The pillars 26 are arranged between adjacent lamp beads 25. The lamp beads 25 and the pillars 26 are located on the inner side of the light bar 21. Multiple pillars 26 support the outer periphery of the light guide plate 24. The length of the pillars 26 is longer than that of the lamp beads 25. The pillars 26 and the lamp beads 25 extend in the same direction, so that there is a gap between the lamp beads 25 and the light guide plate 24, and the lamp beads 25 and the light guide plate 24 will not contact.

[0041] The light emitted by the lamp beads 25 is directed toward the side wall of the light guide plate 24 . The light emitted by the lamp beads 25 enters from the side wall of the light guide plate 24 . The light enters the light guide plate 24 and is evenly distributed in the light guide plate 24 . The front frame 13 is used to mount the display screen. The light guide plate 24 projects the light onto the display screen, and the light does not pass through the back plate 12 .

[0042] Both the light guide plate 24 and the back plate 12 have curved surfaces, and the curved surfaces of the back plate 12 and the light guide plate 24 include multiple curvatures. The curvature of the back plate 12 is consistent with the curvature of the light guide plate 24. Because the front frame 13 is fitted and connected to the thermal conductive strip 22, the front frame 13 also has multiple curvatures. The visual effect of having multiple curvature display screens installed on the front frame 13 is better.

[0043] The light source assembly 2 includes a reflective paper 27 and an optical film 28. The reflective paper 27 is arranged between the light guide plate 24 and the back plate 12. The reflective paper 27 is adhered to the light guide plate 24 and the back plate 12 at the same time. The optical film 28 is laid flat on the light guide plate 24. The light guide plate 24 is located between the reflective paper 27 and the optical film 28. The reflective paper 27 is used to reflect light. The optical film 28 can adjust or redistribute the light beam. The optical film 28 atomizes the light.

[0044] The light source assembly 2 further includes a protective cover 29 , which is disposed on the top of the back plate 12 . The light bar 21 is within the coverage of the protective cover 29 . The protective cover 29 prevents condensed water from dripping onto the light bar 21 .

[0045] A plurality of heat dissipation holes 20 are provided on the side wall of the protective cover 29 . The plurality of heat dissipation holes 20 are evenly arranged. Since the light bar 21 generates heat when it emits light, the heat is discharged through the heat dissipation holes 20 .

[0046] The light bar 21 can be set vertically or horizontally. The pillars 26 on the light bar 21 are 0.4-0.6 mm longer than the lamp beads 25 in the vertical direction, and 0.4-0.6 mm longer than the lamp beads 25 in the horizontal direction.

[0047] like Figure 4 and Figure 5As shown, the curved surface of the back panel 12 includes a straight area 121, a polyline area 122 and a curved area 123. The curved area 123 is located between the two polyline areas 122. The curved area 123 is located in the middle of the curved surface of the back panel 12. The polyline areas 122 are on both sides of the curved area 123. The two straight areas 121 are located on both sides of the back panel 12. The two polyline areas 122 and one curved area 123 are located between the two straight areas 121. The polyline area 122 is located between the straight area 121 and the curved area 123. The polyline area 122 is formed by bending.

[0048] The light guide plate 24 and the back plate 12 are bent in the same direction, and the light guide plate 24 and the back plate 12 can be fitted together.

[0049] like Figure 6 As shown, the support assembly 1 also includes a plurality of curved reinforcing strips 14, and the plurality of reinforcing strips 14 are evenly arranged up and down in accordance with the curved surface of the back panel 12. The plurality of reinforcing strips 14 are evenly arranged in the vertical direction. The reinforcing strips 14 and the light guide plate 24 are respectively located on both sides of the back panel 12. The reinforcing strips 14 and the circuit board 23 are on the same side. The reinforcing strips 14 bend together with the back panel 12. The reinforcing strips 14 have a reinforcing effect on the back panel 12, maintaining the curvature of the curved surface of the back panel 12.

[0050] The support assembly 1 also includes a first link 15 and a second link 16, which are respectively connected to both sides of the multiple reinforcement strips 14. The first link 15 and the second link 16 are located on both sides of the back plate 12, and the first link 15 and the second link 16 are connected to the frame 11.

[0051] The support assembly 1 also includes a first baffle 17 and a second baffle 18. The reinforcement strip 14 is located on the same side as the first baffle 17 and the second baffle 18. The first baffle 17 and the second baffle 18 are arranged on the frame 11. The first baffle 17 is provided with a first air hole 170, and the second baffle 18 is provided with a second air hole 180. The first air hole 170 and the second air hole 180 are both aligned with the curved surface of the back panel 12. Gas is vented in the first air hole 170 and the second air hole 180 to cool the back panel 12 and the circuit board 23. Further, the light bar 21 is cooled through the back panel 12.

[0052] Furthermore, fans can be provided in the first air holes 170 and the second air holes 180 to achieve a cooling effect. The number of first baffles 17 and second baffles 18 provided is not limited, and the four side walls of the frame 11 can be grounded.

[0053] The above embodiments are only for illustrating the technical concept and features of the present invention. Their purpose is to enable people familiar with this technology to understand the content of the present invention and implement it accordingly. They are not intended to limit the scope of protection of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the scope of protection of the present invention.

Claims

1. A side-lit curved backlight device, comprising a support assembly (1) and a light source assembly (2), characterized in that: The support assembly (1) comprises a frame (11), a back plate (12) and a front frame (13), wherein the back plate (12) is arranged on the frame (11); The light source assembly (2) comprises a light bar (21) and a heat-conducting bar (22), the heat-conducting bar (22) being arranged around the back plate (12), the light bar (21) being arranged inside the heat-conducting bar (22), and the front frame (13) being fitted and connected to the heat-conducting bar (22); The light source assembly (2) further comprises a light guide plate (24), the inner surface of the light bar (21) comprises a plurality of lamp beads (25) and a plurality of pillars (26), the lamp beads (25) and the pillars (26) are located inside the light bar (21), the plurality of pillars (26) support the outer periphery of the light guide plate (24), the length of the pillars (26) is longer than the lamp beads (25), the light emitted by the lamp beads (25) is directed toward the side wall of the light guide plate (24), and the light guide plate (24) is used to reflect light; The light guide plate (24) and the back plate (12) both have curved surfaces. The curved surfaces of the back plate (12) and the light guide plate (24) include multiple curvatures. The curvature of the back plate (12) is consistent with the curvature of the light guide plate (24). The front frame (13) is used to mount a display screen.

2. The edge-lit curved backlight device according to claim 1, wherein: The curved surface of the back plate (12) includes a straight line area (121), a multi-segment line area (122) and a curved surface area (123), wherein the curved surface area (123) is located between two of the multi-segment line areas (122), the two straight line areas (121) are located on both sides of the back plate (12), the multi-segment line area (122) is located between the straight line area (121) and the curved surface area (123), and the multi-segment line area (122) is formed by bending.

3. The edge-lit curved backlight device according to claim 2, wherein: The light guide plate (24) and the back plate (12) are bent in the same direction.

4. The edge-lit curved backlight device according to claim 1, wherein: The light source assembly (2) comprises a reflective paper (27) and an optical film (28); the reflective paper (27) is arranged between the light guide plate (24) and the back plate (12); the optical film (28) is laid flat on the light guide plate (24); and the light guide plate (24) is located between the reflective paper (27) and the optical film (28).

5. The edge-lit curved backlight device according to claim 1, wherein: The light source assembly (2) further comprises a protective cover (29), wherein the protective cover (29) is arranged on the top of the back plate (12), and the light bar (21) is within the coverage of the protective cover (29).

6. The edge-lit curved backlight device according to claim 5, wherein: A plurality of heat dissipation holes (20) are provided on the side wall of the protective cover (29).

7. The edge-lit curved backlight device according to claim 1, wherein: The light bar (21) has two modes of vertical setting and horizontal setting. In the vertical direction, the pillar (26) on the light bar (21) is 0.4-0.6 mm longer than the lamp bead (25), and in the horizontal direction, the pillar (26) on the light bar (21) is 0.4-0.6 mm longer than the lamp bead (25).

8. The edge-lit curved backlight device according to claim 1, wherein: The support assembly (1) further comprises a plurality of curved reinforcement strips (14), the plurality of reinforcement strips (14) being evenly arranged above and below the curved surface of the back panel (12), and the reinforcement strips (14) and the light guide plate (24) being respectively located on both sides of the back panel (12).

9. The edge-lit curved backlight device according to claim 8, wherein: The support assembly (1) further comprises a first connecting rod (15) and a second connecting rod (16), wherein the first connecting rod (15) and the second connecting rod (16) are respectively connected to two sides of the plurality of reinforcing bars (14), and the first connecting rod (15) and the second connecting rod (16) are connected to the frame (11).

10. The edge-lit curved backlight device according to claim 9, wherein: The support assembly (1) further comprises a first baffle (17) and a second baffle (18); the reinforcing bar (14) is located on the same side as the first baffle (17) and the second baffle (18); the first baffle (17) and the second baffle (18) are arranged on the frame (11); a first air hole (170) is provided on the first baffle (17); a second air hole (180) is provided on the second baffle (18); the first air hole (170) and the second air hole (180) are both aligned with the curved surface of the back plate (12).

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