Full-screen structure backlight module based on glass light guide plate

Abstract

The utility model discloses a full-screen structure backlight module based on a glass light guide plate. The full-screen structure backlight module comprises a sky side end and a ground side end, a liquid crystal panel, a diaphragm, a glass light guide plate, reflection paper, an iron backboard radiator and a rear shell are sequentially arranged from the front face to the back face. The ground side end is provided with a light bar, and the light bar is connected with the ground side end of the glass light guide plate; an n-shaped frame is arranged at the ground side end, the n-shaped frame is in a square shape on the whole, and the n-shaped frame sequentially comprises a first embedding part, a connecting part and a second embedding part. The connecting parts are used for wrapping four edges of the backlight module; the sky side end of the first embedding part is embedded between the liquid crystal panel and the diaphragm; the sky side end of the second embedding part is embedded and attached to the back surface of the reflecting paper; and the ground side ends of the first embedding part and the second embedding part are respectively clamped with the ground side end of the rear shell. According to the utility model, the whole machine can be quickly disassembled and assembled, and the whole machine is ultrathin in structure, low in manufacturing cost and integrated.

Description

Technical Field

[0001] The utility model relates to the technical field of backlight modules, and in particular to a full-screen structure backlight module based on a glass light guide plate. Background Art

[0002] At present, all display products such as monitors and TVs are constantly improving their pursuit of product appearance while pursuing display effects and performance. Exquisite appearance, low cost and easy maintenance have become one of the topics of continuous exploration and research.

[0003] The applicant previously applied for a patent for improved disassembly and assembly based on the defects of the existing technology. The sky side end of the backlight module in the existing technology is generally fixed by front and rear patches using clips and screws, which will have more front and rear protrusions, making it impossible to achieve a smooth appearance of the entire back panel, and the disassembly and assembly efficiency still needs to be improved. Utility Model Content

[0004] The present invention aims to overcome at least one defect of the above-mentioned prior art and provide a full-screen structure backlight module based on a glass light guide plate, so as to achieve the purpose of flat back plate and simple and quick disassembly and assembly.

[0005] Specifically, the utility model provides a full-screen structure backlight module based on a glass light guide plate, including a top side end and a bottom side end; a liquid crystal panel, a diaphragm, a glass light guide plate, a reflective paper, an iron back plate radiator and a back shell are arranged in sequence from the front to the back; the bottom side end is provided with a light bar, and the light bar is connected to the bottom side end of the glass light guide plate; the bottom side end is provided with a Π-shaped frame, and the Π-shaped frame is in the shape of a "mouth" as a whole, wherein the Π-shaped frame includes a first embedded part, a connecting part and a second embedded part in sequence; the connecting part is used for edging the four sides of the backlight module; the top side end of the first embedded part is embedded between the liquid crystal panel and the diaphragm; the top side end of the second embedded part is embedded in the back of the reflective paper; the bottom side ends of the first embedded part and the second embedded part are respectively engaged with the bottom side end of the back shell.

[0006] The utility model uses a glass light guide plate, a liquid crystal panel, and an iron backplane radiator as the main structure, and a plastic back shell as the appearance structure. The card slot formed by the first embedded part and the second embedded part inside the Π-shaped frame is used to clamp the glass light guide plate, diaphragm and other main structures, and then the liquid crystal panel is attached to the Π-shaped frame, changing the existing backlight method, and then using screws and buckle design, which saves materials and processes and realizes a universal product form for the backlight source, and can be applied to the display product design of all side-lit backlight modules.

[0007] Furthermore, the top side is provided with an edge glue, which is attached to the inner side of the Π-shaped frame to reinforce the Π-shaped frame. The edge glue is shaped like a square with an inner side open, and is used to fix the three inner sides of the Π-shaped frame. Preferably, the second embedded portion is provided with a protrusion facing the first embedded portion, and the protrusion is connected to the edge glue.

[0008] Since the backlight module of the present invention is primarily a flat-panel structure that fits together, the present invention achieves a technical effect of abutment through the design of the protruding pillars, making the internal structure more compact and the fit between the functional components more stable. Furthermore, a decorative film is affixed to the back of the backlight module, and a first foam adhesive is provided between the decorative film and the second embedded portion.

[0009] Furthermore, a second foam adhesive is provided between the first embedding portion and the liquid crystal panel.

[0010] The first foam adhesive, the second foam adhesive, and the edging adhesive are designed to perform adhesive fixation. The embedded fixation combined with adhesive provides greater stability after installation. Because the Π-shaped frame, when securing the LCD panel, diaphragm, reflector, and other structures, leaves traces of the Π-shaped frame and the Π-shaped frame slot exposed on the sky side, the present invention incorporates a decorative film that is applied to the outermost layer of the back of the backlight module, creating an integrated, planar structure on the back.

[0011] Furthermore, the upper end of the iron back plate heat sink is provided with a plurality of bridge clips; the rear shell is provided with a plurality of bridge clips corresponding to the bridge clips. More preferably, a positioning clip is provided in the middle of the axis where the plurality of bridge clips are located, and the rear shell is provided with a positioning clip corresponding to the positioning clip.

[0012] The present invention is different from the prior art that uses an entire iron back plate as a back plate. The rear shell requires multiple screws for fastening, and the fastening effect is not good. Since the light bar in the liquid crystal module is the main heating element, the entire iron back plate is thick and heavy and difficult to transport. Therefore, the present invention adopts a partial iron back plate heat sink structure. After the other components are assembled, the bridge structure is finally used to engage with the rear shell to achieve overall rapid installation, reducing installation costs. The multiple bridge bayonet holes also play a positioning role, improving installation efficiency. Preferably, the bridge bayonet holes are on the same horizontal line, and the number of the bridge bayonet holes is 7 to 10.

[0013] Preferably, the height of the iron backplate radiator is less than half of the height of the backlight module.

[0014] The iron backplane radiator is mainly used for heat dissipation of the light strip and the entire backlight module. Since the heat dissipation is mainly concentrated in the lower half, in order to reduce the weight of the entire backlight module, the height of the iron backplane radiator of the utility model is less than half of the height of the backlight module, which can ensure sufficient heat dissipation. At the same time, the overall upper part is light and the lower part is heavy, which has higher stability when placed or carried.

[0015] Furthermore, the back shell includes a support plate and a snap-fit ​​plate from the inside to the outside; the bottom of the support plate is provided with a card slot matching the Π-shaped frame, which is used to snap fit with the Π-shaped frame; the bridge card strip is provided at the upper end of the inner wall of the snap-fit ​​plate; the snap-fit ​​plate, the support plate and the bottom of the iron back plate are fastened by screws.

[0016] The bottom of the support plate plays a supporting role. The height of the support plate is about half of the iron backplate radiator. It mainly plays the role of supporting and fixing the Π-shaped frame. The snap-fit ​​plate arches from the inside to the outside to form a heat dissipation space. At the same time, a plurality of threaded columns are provided inside for overall fastening, which can realize the enclosing and fixing of the entire lower half of the back of the backlight module. The overall integrated structure is more beautiful.

[0017] The full-screen backlight module of the present invention also includes a support, the top of which is fixed to the rear housing. The support is used to support the entire backlight module. The bottom of the support is V-shaped, forming a triangular pyramid structure with the upper end, which is more stable.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] The utility model uses a glass light guide plate as the main structure, which is wrapped with an iron back plate and a diaphragm, and then snapped into place in a Π-shaped frame slot, and then attached to the liquid crystal panel, so that the whole machine can be quickly disassembled and assembled. The structure of the whole machine is ultra-thin, the production cost is low, the whole is integrated, the appearance is exquisite, and it can realize automated production. It can be widely used in display products of TVs and monitors. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is an overall omitted schematic diagram of the full-screen structure backlight module of the present invention.

[0021] Figure 2 This is a schematic diagram of the side structure of the full-screen backlight module of the present invention.

[0022] Figure 3 This is a schematic diagram of the structure of the backlight module on the day side of the full-screen structure of this utility model.

[0023] Figure 4 This is a schematic diagram of the partial explosion structure of the backlight module of the full-screen structure of this utility model.

[0024] Figure 5 This is a schematic diagram of the buckle plate structure of the full-screen backlight module of the utility model.

[0025] Figure 6 This is a schematic diagram of the support plate structure of the full-screen backlight module of the present invention. DETAILED DESCRIPTION

[0026] The drawings in the embodiments provide a more detailed description of the technical solutions in the embodiments of the present invention. In the drawings, the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The described embodiments are part of the embodiments of the present invention, not all of them. The embodiments described below with reference to the drawings are exemplary and are intended to be used to explain the present invention, and should not be understood as limitations on the present invention. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. The embodiments of the present invention are described in detail below with reference to the drawings.

[0027] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0028] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present application, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0029] Example

[0030] This embodiment provides a full-screen backlight module based on a glass light guide plate. Figure 1 As shown, it includes a sky side end 100 and a ground side end 200; Figures 2-3 As shown, from the front to the back, there are a liquid crystal panel 1, a diaphragm 2, a glass light guide plate 3, a reflective paper 4, a decorative film 5, an iron back plate radiator 6 and a rear shell 7; the ground side end 200 is provided with a light bar 8, and the light bar 8 is connected to the ground side end 200 of the glass light guide plate 3; combined with Figure 4As shown, the ground side end 200 is provided with a Π-shaped frame 9, and the Π-shaped frame 9 is in the shape of a "mouth" as a whole. Figure 3 As shown, the Π-shaped frame 9 includes a first embedded portion 91, a connecting portion 92 and a second embedded portion 93 in sequence, the second embedded portion 93 is provided with a convex column 10 toward the inner side of the first embedded portion 91, and the connecting portion 92 is used for the four sides of the backlight module to be fixed and enclosed; Figures 2-3 As shown, the sky side end 100 of the first embedded part 91 is embedded between the liquid crystal panel 1 and the membrane 2; the sky side end 100 of the second embedded part 93 is embedded in the back of the reflective paper 4; the ground side ends 200 of the first embedded part 91 and the second embedded part 93 are respectively engaged with the ground side ends 200 of the rear shell 7.

[0031] like Figure 3 As shown, a first foam adhesive 20 is provided between the decorative film 5 and the second embedded portion 93. A second foam adhesive 30 is provided between the first embedded portion 91 and the liquid crystal panel 1. The side end 100 is also provided with an edge adhesive 40. The edge adhesive 40 is attached to the inner side of the Π-shaped frame 9. One side of the edge adhesive 40 is attached to the protrusion 10, which is used to reinforce the Π-shaped frame 9. The edge adhesive 40 is shaped like a "mouth" with an inner opening, which is used to fix the three inner sides of the Π-shaped frame 9.

[0032] like Figures 4-5 As shown, the upper end of the iron backplate heat sink 6 is provided with eight horizontally aligned bridge clips 50; the rear housing 7 is correspondingly provided with eight corresponding bridge clips 60 that plug into the bridge clips 50. A positioning clip 70 is provided in the middle of the axis of the eight bridge clips 50, and a corresponding positioning clip 80 is provided on the rear housing 7.

[0033] In this embodiment, the height of the iron back plate heat sink 6 is less than half of the height of the backlight module and greater than one third of the height of the backlight module.

[0034] like Figure 4 As shown, the rear shell 7 includes a supporting plate 71 and a buckling plate 72 from the inside to the outside; Figure 6 As shown, the bottom of the support plate 71 is provided with a slot 711 that matches the Π-shaped frame 9 and is used to snap together with the Π-shaped frame 9; the bridge clip 60 is provided on the upper end of the inner wall of the snap-fit ​​plate 72; the snap-fit ​​plate 72, support plate 71, and the bottom of the iron back plate are fastened by screws. The full-screen backlight module of this utility model also includes a support 90, the top of which is fixed to the rear housing 7. The bottom of the support 90 is a V-shaped support, forming a triangular pyramid structure with the upper end, which provides greater stability.

[0035] The above embodiments are intended only to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments above, those skilled in the art should understand that modifications or equivalent substitutions of the technical solutions of the present invention may be made without departing from the spirit and scope of the technical solutions of the present invention. Those skilled in the art may also make other changes within the spirit of the present invention and apply them to the design of the present invention, as long as they do not deviate from the technical effects of the present invention. These changes made in accordance with the spirit of the present invention should be included in the scope of protection claimed by the present invention.

Claims

1. A full-screen structure backlight module based on a glass light guide plate, comprising a sky side end (100) and a ground side end (200); characterized in that: A liquid crystal panel (1), a diaphragm (2), a glass light guide plate (3), a reflective paper (4), an iron back plate heat sink (6), and a rear shell (7) are sequentially provided from the front to the back; a light bar (8) is provided at the ground side end (200), and the light bar (8) is connected to the ground side end (200) of the glass light guide plate (3); The ground side end (200) is provided with a Π-shaped frame (9), and the Π-shaped frame (9) is in the shape of a "mouth" as a whole, wherein the Π-shaped frame (9) comprises a first embedding portion (91), a connecting portion (92), and a second embedding portion (93) in sequence; the connecting portion (92) is used for wrapping the four sides of the backlight module; the sky side end (100) of the first embedding portion (91) is embedded between the liquid crystal panel (1) and the diaphragm (2); the sky side end (100) of the second embedding portion (93) is embedded in the back surface of the reflective paper (4); the ground side ends (200) of the first embedding portion (91) and the second embedding portion (93) are respectively engaged with the ground side end (200) of the rear shell (7).

2. The full-screen structure backlight module according to claim 1, characterized in that: The side end (100) is further provided with an edge glue (40), and the edge glue (40) is attached to the inner side of the Π-shaped frame (9) and is used to reinforce the Π-shaped frame (9).

3. The full-screen structure backlight module according to claim 2, characterized in that: The second embedded portion (93) is provided with a convex column (10) facing the first embedded portion (91), and the convex column (10) is connected to the edge glue (40).

4. The full-screen structure backlight module according to claim 2, characterized in that: A decorative film (5) is also attached to the back of the backlight module, and a first foam adhesive (20) is provided between the decorative film (5) and the second embedded portion (93).

5. The full-screen structure backlight module according to claim 2, characterized in that: A second foam glue (30) is also provided between the first embedding portion (91) and the liquid crystal panel (1).

6. The full-screen structure backlight module according to claim 1, characterized in that: The upper end of the iron back plate radiator (6) is provided with a plurality of bridge bayonet openings (50); the rear shell (7) is correspondingly provided with a plurality of bridge clips (60) plugged into the bridge bayonet openings (50).

7. The full-screen structure backlight module according to claim 6, characterized in that: A positioning bayonet (70) is provided in the middle of the axis where the plurality of bridge bayonet holes (50) are located, and a positioning clip (80) is correspondingly provided on the rear shell (7).

8. The full-screen structure backlight module according to claim 6, characterized in that: The height of the iron backplate radiator (6) is less than half the height of the backlight module.

9. The full-screen structure backlight module according to claim 1, characterized in that: The rear shell (7) comprises a supporting plate (71) and a buckling plate (72) in sequence from the inside to the outside; a card slot (711) matching the Π-shaped frame (9) is provided at the bottom of the supporting plate (71) for buckling with the Π-shaped frame (9); the bridge card strip (60) is provided at the upper end of the inner wall of the buckling plate (72); the buckling plate (72), the supporting plate (71) and the bottom of the iron back plate are fastened by screws.

10. The full-screen structure backlight module according to any one of claims 1 to 9, characterized in that: It also includes a support (90), the top of which is fixed to the rear shell (7).

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