Display ELED backlight light bar

Abstract

The utility model relates to the technical field of display ELED, in particular to a display ELED backlight strip, which is applied to a liquid crystal screen, backlight strips are arranged on two sides of the liquid crystal screen, each backlight strip comprises an ELED lamp panel, a rubber frame is fixedly mounted between one side of each ELED lamp panel and one side of a front shell, a membrane is arranged at the top of the liquid crystal screen, and the ELED backlight strips are arranged on the two sides of the liquid crystal screen. The bottom end of the rubber frame abuts against the outer portion of the diaphragm, a light guide plate is arranged on the top of the diaphragm, a reflector plate is arranged on the top of the light guide plate, a heat dissipation plate is fixedly connected to the top of the ELED lamp panel, and the heat dissipation plate and the ELED lamp panel are connected in series. The rubber frame, the ELED lamp panel and the heat dissipation panel are fixed together through mechanical connection, the diaphragm and the light guide plate are pressed, the internal heat dissipation panel and the metal back plate are stably connected, the strength of the whole machine is improved, meanwhile, reliable support is provided for the light guide plate and the ELED lamp panel, heat dissipation is conducted on the ELED lamp panel when the liquid crystal screen works, the ELED lamp panel provides a stable light source for the whole machine, and the service life of the whole machine is prolonged. And the width space of the whole machine is not occupied by fitting with the heat dissipation plate, so that the edge width of the whole machine is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to display ELED technical field especially relates to a display ELED back light bar. BACKGROUND

[0002] ELED back light is to install LED light bar at the edge of liquid crystal panel, light is evenly distributed to the whole screen through light guide plate, the design of light guide plate ensures that light spreads from the edge to every corner of the screen, thereby realizing uniform back light effect, the common ELED back light scheme, large size model usually is to stick the reverse side of lamp panel with heat conduction glue in the inside of aluminum heat sink, small size model usually is to stick the reverse side of lamp panel with heat conduction glue in the inside of sheet metal back plate bending edge.

[0003] In the prior art, the patent with the announcement number CN202581154U discloses LED display and LED back light bar fixing device thereof, including the base with a plurality of convex blocks, heat dissipation base plate and back light bar, the back light bar is uniformly provided with a plurality of LED lamps at fixed intervals along the length direction, the bottom of the heat dissipation base plate is provided with a plurality of holes at the corresponding position of the plurality of convex blocks, and the bottom of the back light bar is provided with a plurality of open grooves at the corresponding position of the plurality of holes.

[0004] The above structure is mainly used for fastening the back light bar, but under the display back light, the thickness of the internal heat dissipation base plate occupies a large space, resulting in that the edge width of the whole machine product is relatively wide, the product homogenization is serious, and the edge width cannot be extremely narrow. UTILITY MODEL CONTENT

[0005] Therefore, the utility model aims at providing a display ELED back light bar to solve the problem that the thickness of the internal heat dissipation base plate occupies a large space, resulting in that the edge width of the whole machine product is relatively wide, the product homogenization is serious, and the edge width cannot be extremely narrow.

[0006] In order to achieve the above purpose, the utility model provides a display ELED back light bar, which is applied to a liquid crystal screen, and the two sides of the liquid crystal screen are provided with back light bars.

[0007] One side of the ELED lamp plate and one side of the front shell are fixedly installed with a rubber frame, the top of the liquid crystal screen is provided with a diaphragm, and the bottom end of the rubber frame abuts against the outside of the diaphragm.

[0008] The top of the diaphragm is provided with a light guide plate, the top of the light guide plate is provided with a reflecting sheet, the ELED lamp plate is arranged between the light guide plate and the rubber frame, the top of the ELED lamp plate is fixedly connected with a heat dissipation plate, and the heat dissipation plate and the ELED lamp plate are connected in series.

[0009] Preferably, the heat dissipation plate is composed of two groups of L-shaped plates combined with each other.

[0010] Preferably, the heat sink is composed of a set of L-shaped plates and two sets of short plates extending from one side of the heat sink.

[0011] Preferably, a metal back plate is fixedly installed on the top of the reflector, and the two ends of the metal back plate are set with bends, which are fixedly connected to the outside of the heat sink.

[0012] Preferably, the ELED light panel and the light guide plate correspond to each other, and the size of the light guide plate matches the size of the reflector.

[0013] Preferably, the frame and the front shell are snap-fitted together, and both the front shell and the frame are L-shaped structures.

[0014] Preferably, the front shell and the rear shell are made of one of the following materials: plastic, sheet metal, and aluminum.

[0015] The beneficial effects of this utility model are:

[0016] The frame, ELED lamp board, and heat sink are fixed together by mechanical connection, pressing down the diaphragm and light guide plate. At the same time, the frame and front shell are snapped together, which facilitates the assembly of the entire frame. After assembly, the internal heat sink and metal back plate are stably connected, providing the strength of the whole machine. Meanwhile, the light guide plate and ELED lamp board provide reliable support and heat dissipation for the ELED lamp board when the LCD screen is working. At the same time, the ELED lamp board and light guide plate correspond to each other to provide a stable light source for the whole machine. Furthermore, the fit with the heat sink does not encroach on the width space of the whole machine, effectively reducing the width of the whole machine. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a three-dimensional structural diagram of the entire utility model;

[0019] Figure 2 This is a schematic diagram of the overall horizontal structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the first type of ELED light panel structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the second type of ELED light panel structure of this utility model.

[0022] Marked in the figure: 1, front shell; 2, rear shell; 3, metal back plate; 4, heat sink; 5, ELED lamp plate; 6, reflector; 7, light guide plate; 8, diaphragm; 9, rubber frame; 10, liquid crystal screen. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantages of the utility model more clear, the utility model is further described in detail below with specific examples.

[0024] As shown in Figure 1 , Figure 2 and Figure 3 , an ELED backlight bar of a display is applied to a liquid crystal screen 10, the outer two sides of the liquid crystal screen 10 are fixedly installed with a front shell 1 and a rear shell 2 respectively, the front shell 1 and the rear shell 2 are detachably connected, the two sides of the liquid crystal screen 10 are provided with the backlight bar, and the backlight bar comprises an ELED lamp plate 5.

[0025] A rubber frame 9 is fixedly installed between one side of the ELED lamp plate 5 and one side of the front shell 1, the top of the diaphragm 8 is provided with the light guide plate 7, the top of the light guide plate 7 is provided with the reflector 6, the ELED lamp plate 5 is arranged between the light guide plate 7 and the rubber frame 9, the top of the ELED lamp plate 5 is fixedly connected with the heat sink 4, and the heat sink 4 and the ELED lamp plate 5 are connected in series.

[0026] The top of the diaphragm 8 is provided with the light guide plate 7, the top of the light guide plate 7 is provided with the reflector 6, the ELED lamp plate 5 is arranged between the light guide plate 7 and the rubber frame 9, the top of the ELED lamp plate 5 is fixedly connected with the heat sink 4, and the heat sink 4 and the ELED lamp plate 5 are connected in series.

[0027] In the embodiment, the rubber frame 9, the ELED lamp plate 5 and the heat sink 4 are fixed together through mechanical connection, the diaphragm 8 and the light guide plate 7 are pressed, the light leakage problem of the whole machine is prevented, the rubber frame 9 and the front shell 1 are connected through clamping, the whole frame is assembled conveniently, after assembly, the internal heat sink 4 and the metal back plate 3 are stably connected, the strength of the whole machine is provided, reliable support is provided for the light guide plate 7 and the ELED lamp plate 5, the ELED lamp plate 5 is cooled when the liquid crystal screen 10 works, the optical sheet of the whole machine is prevented from changing in quality in a long-term high-temperature environment, meanwhile, on one side of the liquid crystal screen 10, the ELED lamp plate 5 and the light guide plate 7 correspond to each other, stable light sources are provided for the whole machine, the heat sink 4 is attached without occupying the width space of the whole machine, and the effective reduction of the width of the whole machine is realized.

[0028] As an embodiment, as shown in Figure 3 , the heat sink 4 is composed of two groups of L-shaped plates.

[0029] In the embodiment, the heat sink 4 of one group of L-shaped plates is in contact with the metal back plate 3 and the reflector 6 respectively, the heat sink 4 of the other group of L-shaped plates is in contact with the ELED lamp plate 5, the thickness of the heat sink 4 is reduced, and the lamp plate is cooled.

[0030] As an embodiment, as shown inFigure 4 As shown in the drawings, the heat dissipation plate 4 is a combination of a group of L-shaped plates and two groups of short plates extending from one side of the heat dissipation plate 4.

[0031] In this embodiment, one side of the L-shaped heat dissipation plate 4 and the two groups of short plates respectively contact the metal back plate 3 and the reflective sheet 6, and the other side contacts the ELED lamp plate 5.

[0032] As an embodiment, as shown in the drawings, Figure 3 and Figure 4 As shown in the drawings, the metal back plate 3 is fixedly installed on the top of the reflective sheet 6, and the two ends of the metal back plate 3 are provided with folding angles, which are fixedly connected to the outside of the heat dissipation plate 4.

[0033] In this embodiment, the metal back plate 3 and the heat dissipation plate 4 are mechanically and stably connected to provide the overall machine strength, and to provide reliable support for the light guide plate 7.

[0034] As an embodiment, as shown in the drawings, Figure 3 and Figure 4 As shown in the drawings, the ELED lamp plate 5 corresponds to the light guide plate 7, and the size of the light guide plate 7 matches the size of the reflective sheet 6.

[0035] In this embodiment, the ELED lamp plate 5 corresponds to the light guide plate 7 to provide a stable light source for the overall machine, and the adhesion of the heat dissipation plate 4 does not occupy the overall machine width space, realizing the effective reduction of the overall machine side width.

[0036] As an embodiment, as shown in the drawings, Figure 1 , Figure 2 As shown in the drawings, the glue frame 9 and the front shell 1 are connected by clamping, and the front shell 1 and the glue frame 9 are both provided in an L-shaped structure.

[0037] In this embodiment, the glue frame 9, the ELED lamp plate 5 and the heat dissipation plate 4 are fixed together by mechanical connection, and the diaphragm 8 and the light guide plate 7 are pressed to prevent light leakage of the overall machine, and the glue frame 9 and the front shell 1 are connected by clamping, which is convenient for the assembly of the entire frame.

[0038] As an embodiment, as shown in the drawings, Figure 1 As shown in the drawings, the front shell 1 and the rear shell 2 are one of plastic, sheet metal and aluminum material.

[0039] In this embodiment, the material of the heat dissipation plate 4 can be aluminum and sheet metal, and the material of the glue frame 9 can be plastic and sheet metal, which can be matched with different structure assembly design schemes and be flexibly used.

[0040] Working principle: in use, through mechanical connection, the glue frame 9, ELED lamp plate 5 and heat sink 4 are fixed together, press the diaphragm 8 and light guide plate 7, prevent the whole machine light leakage problem, simultaneously, the glue frame 9 and front shell 1 are connected, facilitate the whole frame assembly, after assembly, the internal heat sink 4 and metal back plate 3 are stably connected, provide the whole machine strength, simultaneously with light guide plate 7 and ELED lamp plate 5 provide reliable support;

[0041] When the liquid crystal screen 10 works, the ELED lamp plate 5 is cooled, the optical sheet of the whole machine is prevented from changing in long-term high-temperature environment, simultaneously, on one side of the liquid crystal screen 10, the ELED lamp plate 5 and the light guide plate 7 correspond to each other, and the whole machine is provided with stable light source, and the heat sink 4 is attached, and the whole machine width space is not occupied, and the effective reduction of the whole machine side width is realized.

[0042] Those skilled in the art should understand that the above discussion of any embodiment is only exemplary, and is not intended to imply that the scope (including claims) of the utility model is limited to these examples; under the idea of the utility model, the above embodiments or technical features in different embodiments can also be combined, the steps can be implemented in any order, and there are many other changes of different aspects of the utility model as described above, which are not provided in details for the sake of simplicity.

[0043] The utility model aims at covering all such alternatives, modifications and variations falling within the broad scope of the appended claims. Therefore, any omission, modification, equivalent replacement, improvement, etc. made in the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A display ELED backlight bar applied to a liquid crystal screen (10), the two sides of the liquid crystal screen (10) are provided with the backlight bar, characterized in that, The backlight strip comprises an ELED lamp plate (5); One side of the ELED lamp plate (5) is fixedly installed with a rubber frame (9) on one side of a front shell (1), the top of the liquid crystal screen (10) is provided with a diaphragm (8), and the bottom end of the rubber frame (9) abuts against the outside of the diaphragm (8); The top of the diaphragm (8) is provided with a light guide plate (7), the top of the light guide plate (7) is provided with a reflecting sheet (6), the ELED lamp plate (5) is arranged between the light guide plate (7) and the rubber frame (9), the top of the ELED lamp plate (5) is fixedly connected with a heat dissipation plate (4), and the heat dissipation plate (4) is connected in series with the ELED lamp plate (5).

2. The display ELED backlight bar of claim 1, wherein, The heat dissipation plate (4) is composed of two groups of L-shaped plates.

3. The display ELED backlight bar of claim 1, wherein, The heat dissipation plate (4) is composed of one group of L-shaped plates and two groups of short plates extending from one side of the heat dissipation plate (4).

4. The display ELED backlight bar of claim 1, wherein, The top of the reflecting sheet (6) is fixedly installed with a metal back plate (3), both ends of the metal back plate (3) are provided with folding angles, and the folding angles are fixedly connected with the outside of the heat dissipation plate (4).

5. The display ELED backlight bar of claim 1, wherein, The ELED lamp plate (5) corresponds to the light guide plate (7), and the size of the light guide plate (7) matches the size of the reflecting sheet (6).

6. The display ELED backlight bar of claim 1, wherein, The rubber frame (9) is snap-fitted with the front shell (1), and the front shell (1) and the rubber frame (9) are both provided in an L-shaped structure.

7. The display ELED backlight bar of claim 1, wherein, The front shell (1) and the rear shell (2) are both made of one of plastic, sheet metal and aluminum material.

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