Backlight module with integrated stacking and edge wrapping

Abstract

The utility model discloses an integrated stacked edge-wrapped backlight module, including a sky side end and a ground side end; from the front to the back, it includes a liquid crystal panel, a diaphragm, a glass light guide plate, a reflective paper, and a back plate in sequence; the ground side end is also provided with a light bar, and the light-emitting end of the light bar is attached to the glass light guide plate; the sky side end is provided with a C-shaped edge-wrapped adhesive and a double-sided foam cotton arranged on the back side of the liquid crystal panel, and the C-shaped edge-wrapped adhesive is integrally formed, including an embedded portion, a side fixing portion, and a back fixing portion; the embedded portion extends between the double-sided foam cotton and the diaphragm, so that the C-shaped edge-wrapped adhesive stacks and wraps the diaphragm, the glass light guide plate, the reflective paper, and the back plate in an integrated manner. The utility model as a whole uses edge-wrapped adhesive, double-sided adhesive, etc. to attach, fix, and wrap the backlight module, and does not require screw fastening, so the processing is simpler and the cost is lower.

Description

Technical Field

[0001] The utility model relates to the technical field of backlight modules, in particular to an integrated stacked and edge-wrapped backlight module. Background Art

[0002] All display products such as monitors and TVs are pursuing display effects and performance while also continuously improving their pursuit of product shape. Exquisite appearance, low cost, and convenient maintenance have become one of the topics that are constantly explored and studied. Users are also pursuing higher and higher requirements for the structural stability, integrity, and appearance of the backlight module. The requirements for side edging are also getting higher and higher. How to improve the convenience of disassembly and assembly and the stability and aesthetics of the edging has become a problem that needs to be solved. Utility Model Content

[0003] The utility model aims to overcome at least one defect of the above-mentioned prior art and provide a backlight module with integrated stacking and edging, so as to achieve the purpose of integrated edging, convenient disassembly and assembly, and high stability.

[0004] The utility model provides a backlight module with an integrated stacked edge wrapping, comprising a top side end and a bottom side end; from the front to the back, it comprises a liquid crystal panel, a diaphragm, a glass light guide plate, a reflective paper, and a back plate in sequence; the bottom side end is also provided with a light bar, and the light-emitting end of the light bar is attached to the glass light guide plate; the top side end is provided with a C-shaped edge wrapping adhesive and a double-sided foam adhesive cotton arranged on the back side of the liquid crystal panel, the C-shaped edge wrapping adhesive is integrally formed, comprising an embedded portion, a side fixing portion and a back fixing portion; the embedded portion extends between the double-sided foam adhesive cotton and the diaphragm, so that the C-shaped edge wrapping adhesive can stack and wrap the diaphragm, the glass light guide plate, the reflective paper and the back plate as a whole.

[0005] The design of the utility model uses an integrated wrapping component, that is, the back panel, reflective paper, glass light guide plate, and diaphragm are used as the main structure, and are formed into one piece using C-type edge glue. By wrapping the back panel and diaphragm and other structures, and finally bonding the liquid crystal panel, the overall structure is ultra-thin, low-cost and exquisite in appearance. The integrated wrapping structure designed by the utility model is easy to automate and can be used in display products such as TVs and monitors.

[0006] In one embodiment of the utility model, the back panel includes a supporting portion and a heat dissipation portion, and the heat dissipation portion is integrally formed with the supporting portion; the supporting portion is linear and fits the back of the reflective paper; one end of the heat dissipation portion protrudes outward in a U shape, and the other end encloses the light bar, and the end of the heat dissipation portion is embedded between the liquid crystal panel and the glass light guide plate, and the end of the heat dissipation portion is on the same straight line as the diaphragm.

[0007] Another inventive point of the utility model is the design of a U-shaped radiator, which uses the structure of an iron back plate to improve the overall hardness and better protect the internal structural parts. At the same time, the use of the iron back plate can play a good heat dissipation role while playing a supporting role. Therefore, the back plate of the utility model itself is used as a radiator. In order to expand the space in the area where the light bar is located and improve the heat dissipation efficiency, the back plate is protruded to the back to form a U-shaped space for better heat dissipation.

[0008] More preferably, the other end of the heat dissipation part protrudes toward the front to form an n-type. Since the light bar is strip-shaped, the other end of the heat dissipation part protrudes toward the front to form an n-type protrusion, which is opposite to the protruding direction of the U-shaped heat sink, to maximize the heat dissipation space.

[0009] More preferably, the side of the heat dissipation portion is further provided with a heat dissipation strip extending outward.

[0010] Another inventive point of the utility model is that the heat sink is designed with a heat dissipation strip at the position where the light bar is attached, and more preferably, there are two heat dissipation strips. The heat dissipation strips extend toward the ground side, and finally the heat dissipation part of the utility model realizes heat dissipation on multiple surfaces, and the heat dissipation efficiency is higher.

[0011] In another embodiment of the utility model, the backlight module also includes a first frame arranged at the ground side end and a front frame arranged on the front side to be attached to the liquid crystal panel, and the backlight module also includes a T-shaped frame, and the T-shaped frame is embedded in the first frame so that the inner side edge of the T-shaped frame presses the frame to achieve stacking and edging of the ground side end.

[0012] The utility model utilizes C-shaped edge glue to wrap the backlight assembly at the top side end, and utilizes the T-shaped frame, the first frame and the front frame at the other end to fasten the backlight assembly at the ground side end.

[0013] Preferably, one end of the first frame is buckled inwards and fits the heat dissipation part, and the bend of the first frame is rounded and buckled inwards. Since the heat sink has a 90-degree bend, the first frame is rounded and buckled inwards to make the two fit more tightly.

[0014] Furthermore, in another embodiment of the present invention, the backlight module further includes a second frame and a first double-sided adhesive tape; the first double-sided adhesive tape is disposed between the second frame and the C-shaped edging adhesive tape to fix the two.

[0015] The ground side end is also provided with a liquid crystal coating and a circuit board; one end of the liquid crystal coating is embedded in the first frame, and the other end of the liquid crystal coating is connected to the circuit board.

[0016] Another implementation manner of this embodiment further includes a decorative film and a second double-sided adhesive tape, wherein the decorative film is attached to the back side of the back plate.

[0017] Another implementation manner of this embodiment further includes a patch arranged on the side end of the backlight module.

[0018] Therefore, the utility model as a whole uses edge glue, double-sided tape, etc. to fit and fix the backlight module, and does not need to be fastened with screws, so the processing is simpler and the cost is lower.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] The utility model designs a new type of backlight module backlight source structure with an integrated stacked and edge-wrapped glass light guide plate structure, uses the glass light guide plate as the main structure, and uses a U-shaped method of a single-sided adhesive with silver inside and black outside to wrap and fix the back panel or decorative surface and the glass light guide plate and the diaphragm, and then adheres the liquid crystal panel to the frame or the diaphragm, thereby changing the existing backlight method and eliminating the need to use screws and snap-on designs. It 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 edge-lit backlight modules. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a simplified cross-sectional view of the backlight module in Embodiment 1 of the present utility model.

[0022] Figure 2 This is a sectional view of the day side of the backlight module in Example 1 of the utility model.

[0023] Figure 3 It is a side cross-sectional view of the backlight module in Embodiment 1 of the utility model.

[0024] Figure 4 It is a side cross-sectional view of the backlight module in Embodiment 2 of the present utility model.

[0025] Figure 5 This is a sectional view of the day side of the backlight module in Example 3 of the utility model.

[0026] Figure 6 It is a side cross-sectional view of the backlight module in the fourth embodiment of the utility model. DETAILED DESCRIPTION

[0027] The drawings in the embodiments provide a more detailed description of the technical solutions in the embodiments of the utility model. 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 utility model, not all of them. The embodiments described below with reference to the drawings are exemplary and are intended to be used to explain the utility model, and should not be construed as limitations on the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. The embodiments of the utility model are described in detail below in conjunction with the drawings.

[0028] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0029] 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 used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0030] Example 1

[0031] This embodiment provides a backlight module with integrated stacking and edge wrapping, such as Figure 1 As shown, it includes a sky side end 100 and a ground side end 200; from the front to the back, it includes a liquid crystal panel 1, a film 2, a glass light guide plate 3, a reflective paper 4, and a back plate 5; the ground side end 200 is also provided with a light bar 6, and the light-emitting end of the light bar 6 is attached to the glass light guide plate 3; combined Figure 2 As shown, the side end 100 is provided with a C-shaped edge glue 7 and a double-sided foam 8 provided on the back side of the liquid crystal panel 1. The C-shaped edge glue 7 is integrally formed and includes an embedded portion 701, a side fixing portion 702 and a back fixing portion 703. The embedded portion 701 extends between the double-sided foam 8 and the diaphragm 2, so that the C-shaped edge glue 7 can stack and edge the diaphragm 2, the glass light guide plate 3, the reflective paper 4 and the back plate 5 as a whole. Figure 3As shown, the backlight module further includes a patch 9 disposed at a side end 200 of the backlight module.

[0032] In one embodiment of the utility model, Figure 3 As shown, the back panel 5 includes a supporting portion 501 and a heat dissipation portion 502, and the heat dissipation portion 502 is integrally formed with the supporting portion 501; the supporting portion 501 is linear and fits the back of the reflective paper 4; one end of the heat dissipation portion 502 protrudes outward to form a U-shape 503, and the other end encloses the light bar 6, and the end of the heat dissipation portion 502 is embedded between the liquid crystal panel 1 and the glass light guide plate 3, and the end of the heat dissipation portion 502 is on the same straight line as the diaphragm 2.

[0033] The back plate 5 of the utility model is used as a heat sink and a back support structure, which improves the strength of the entire backlight module. In order to expand the space in the area where the light bar 6 is located and improve the heat dissipation efficiency, the back plate 5 is protruded to the back to form a U-shaped 503 space for better heat dissipation. The other end of the heat dissipation part 502 protrudes to the front to form an n-shaped 504. Since the light bar 6 is strip-shaped, the other end of the heat dissipation part 502 protrudes to the front to form an n-shaped 504 protrusion, which is opposite to the protruding direction of the U-shaped 503 heat sink, to maximize the heat dissipation space.

[0034] In this embodiment, the side of the heat dissipation portion 502 is further provided with a heat dissipation strip 505 extending outward.

[0035] Another inventive point of the utility model is that the heat sink is designed with a heat dissipation bar 505 at the position where the light bar 6 is attached, and more preferably, there are two heat dissipation bars 505. The heat dissipation bar 505 extends toward the ground side end 200, and finally the heat dissipation part 502 of the utility model realizes heat dissipation on multiple surfaces, and the heat dissipation efficiency is higher.

[0036] Example 2

[0037] The difference between this embodiment and embodiment 1 lies in the design of the ground side end; Figure 4 As shown, the backlight module also includes a first frame 10 arranged at the ground side end 200 and a front frame 11 arranged on the front side to be attached to the liquid crystal panel 1, and the backlight module also includes a T-shaped frame 12, and the T-shaped frame 12 is embedded in the first frame 10, so that the inner side edge of the T-shaped frame 12 presses the frame to realize the stacking edging of the ground side end 200.

[0038] The sky side end 100 of the present invention uses C-shaped edge glue 7 to wrap the backlight assembly, and the other end uses the T-shaped frame 12 to fasten the backlight assembly of the ground side end 200 with the first frame 10 and the front frame 11. The ground side end 200 is also provided with a liquid crystal coating 13 and a circuit board 14; one end of the liquid crystal coating 13 is embedded in the first frame 10, and the other end of the liquid crystal coating 13 is connected to the circuit board 14.

[0039] Preferably, one end of the first frame 10 is buckled inward and fits the heat dissipation portion 502, and the bend of the first frame 10 is rounded and buckled inward. Since the heat sink has a 90-degree bend, the rounded inward design of the first frame 10 makes the two fit more tightly.

[0040] Example 3

[0041] This embodiment is another implementation of the utility model. Figure 5 As shown, the backlight module further includes a second frame 15 and a first double-sided adhesive tape 16; the first double-sided adhesive tape 16 is disposed between the second frame 15 and the C-shaped edging adhesive tape 7 to fix the two.

[0042] Another implementation manner of this embodiment further includes a decorative film 18 and a second double-sided adhesive tape 19 , and the decorative film 18 is attached to the back side of the back plate 5 .

[0043] Example 4

[0044] The ground side end of the heat dissipation portion 502 in the first embodiment is open. The main difference between the present embodiment and the first embodiment is that Figure 6 As shown, the heat dissipation portion 502 is closed at the ground side end.

[0045] The above embodiments are only used to illustrate the technical solution of the utility model and are not intended to limit it. Although the utility model is described in detail with reference to the above preferred embodiments, those skilled in the art should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model. Those skilled in the art can also make other changes within the spirit of the utility model and apply them to the design of the utility model, as long as they do not deviate from the technical effects of the utility model. These changes made according to the spirit of the utility model should be included in the scope of protection claimed by the utility model.

Claims

1. A backlight module with integrated stacking and edge wrapping, comprising a sky side end (100) and a ground side end (200); characterized in that: It comprises, from the front side to the back side, a liquid crystal panel (1), a film (2), a glass light guide plate (3), a reflective paper (4), and a back plate (5); The ground side end (200) is also provided with a light bar (6), and the light-emitting end of the light bar (6) is attached to the glass light guide plate (3); The sky side end (100) is provided with a C-shaped edge binding adhesive (7) and a double-sided foam adhesive (8) provided on the back side of the liquid crystal panel (1); the C-shaped edge binding adhesive (7) is integrally formed and comprises an embedded portion (701), a side fixing portion (702) and a back fixing portion (703); the embedded portion (701) extends between the double-sided foam adhesive (8) and the diaphragm (2), so that the C-shaped edge binding adhesive (7) can stack and bind the diaphragm (2), the glass light guide plate (3), the reflective paper (4) and the back plate (5) in an integrated manner.

2. The backlight module according to claim 1, characterized in that: The back plate (5) comprises a supporting portion (501) and a heat dissipation portion (502), and the heat dissipation portion (502) and the supporting portion (501) are integrally formed; The support portion (501) is linear and fits the back of the reflective paper (4); One end of the heat dissipation portion (502) protrudes outwards to form a U-shape (503), and the other end surrounds the light bar (6), and the end of the heat dissipation portion (502) is embedded between the liquid crystal panel (1) and the glass light guide plate (3), and the end of the heat dissipation portion (502) is on the same straight line as the film (2).

3. The backlight module according to claim 2, characterized in that: The other end of the heat dissipation portion (502) protrudes toward the front surface to form an n-type (504).

4. The backlight module according to claim 2, characterized in that: The side of the heat dissipation portion (502) is also provided with a heat dissipation strip (505) extending outward.

5. The backlight module according to claim 4, characterized in that: There are two heat dissipation strips (505).

6. The backlight module according to claim 2, characterized in that: It also includes a first frame (10) arranged at the ground side end (200) and a front frame (11) arranged on the front side to be bonded to the liquid crystal panel (1), and the backlight module also includes a T-shaped frame (12), and the T-shaped frame (12) is embedded in the first frame (10) so that the inner side edge of the T-shaped frame (12) presses the frame to achieve stacking and edging of the ground side end (200).

7. The backlight module according to claim 6, characterized in that: One end of the first frame (10) is inwardly bent and fits the heat dissipation portion (502), and the bending portion of the first frame (10) is rounded and inwardly bent.

8. The backlight module according to claim 6, characterized in that: It also includes a second frame (15) and a first double-sided adhesive tape (16); the first double-sided adhesive tape (16) is arranged between the second frame (15) and the C-shaped edging adhesive tape (7) to fix the two.

9. The backlight module according to claim 6, characterized in that: The ground side end (200) is also provided with a liquid crystal coating (13) and a circuit board (14); one end of the liquid crystal coating (13) is embedded in the first frame (10), and the other end of the liquid crystal coating (13) is connected to the circuit board (14).

10. The backlight module according to claim 1, characterized in that: It also includes a decorative film (18) and a second double-sided adhesive tape (19), wherein the decorative film (18) is attached to the back surface of the back plate (5); and it also includes a patch (9) arranged at the side end (200) of the backlight module.

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