CN210514879U - Backlight module and display device - Google Patents
Backlight module and display device Download PDFInfo
- Publication number
- CN210514879U CN210514879U CN201921646478.6U CN201921646478U CN210514879U CN 210514879 U CN210514879 U CN 210514879U CN 201921646478 U CN201921646478 U CN 201921646478U CN 210514879 U CN210514879 U CN 210514879U
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- back plate
- diaphragm
- middle frame
- backlight module
- hook
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- 230000003287 optical effect Effects 0.000 claims abstract description 26
- 239000012528 membrane Substances 0.000 claims description 6
- 239000012788 optical film Substances 0.000 description 9
- 239000010408 film Substances 0.000 description 7
- 238000005452 bending Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model discloses a backlight module, wherein a backboard hook extends from the side edge of a backboard towards the center direction of the backboard, the backboard hook is inserted into a positioning hole of a diaphragm hanging lug, and an optical diaphragm is fixedly arranged on the backboard; and correspond on the center the position department of backplate couple has seted up first through-hole, first through-hole can supply the diaphragm hangers is worn out, through seting up of first through-hole, provides the surplus for the expend with heat and contract with cold of optics diaphragm, need not to leave the surplus of expend with heat and contract with cold between diaphragm hangers and center for the diaphragm hangers is closer to the center outer fringe, has reduced the width that the center needs to cover, can avoid the production of light leak phenomenon when realizing super narrow frame.
Description
Technical Field
The utility model relates to a display device technical field especially relates to a backlight module and display device.
Background
The general type of the positioning structure of the optical diaphragm group in the liquid crystal diaphragm group is that the side edge of a back plate is extended and is turned inwards to form an extension part or a back plate hook, and the back plate hook is matched and positioned with a hanging lug on the diaphragm.
Middle frame is the direct cover diaphragm top among the current scheme, and the hangers outside of diaphragm must remain in the bending that the backplate side extends, simultaneously because the material characteristic of optical diaphragm, must be for its surplus of reserving expend with heat and contract with cold, consequently diaphragm hangers department has certain distance apart from the backplate side, and in order to avoid producing the light leak from diaphragm hangers department, need the middle frame to cover diaphragm hangers department, if reduce the middle frame width, can lead to the middle frame can't cover the diaphragm hangers completely, make diaphragm hangers department the phenomenon of light leak appear, can't realize the design of super narrow frame.
SUMMERY OF THE UTILITY MODEL
To above-mentioned prior art not enough and defect, this application provides a backlight unit to solve backlight unit and can't avoid the technical problem of light leak phenomenon when realizing super narrow frame.
The embodiment of the utility model provides a backlight module, it includes backplate, optics diaphragm and center, the optics diaphragm sets up between backplate and center; the optical diaphragm comprises a diaphragm hanging lug, the diaphragm hanging lug is positioned at the edge of the optical diaphragm and is provided with a positioning hole, a back plate hook extends from the edge of the back plate, and the back plate hook is inserted into the positioning hole; the middle frame is arranged on the outer sides of the edges of the back plate and the optical diaphragm, and a first through hole is formed in the position, corresponding to the extension of the diaphragm hanging lug, of the middle frame.
The embodiment of the utility model provides a backlight unit, it is provided with the backplate couple on the backplate, and peg graft through it in the locating hole on the diaphragm hangers is fixed optical diaphragm, simultaneously on the center with the position department that the extension of diaphragm hangers corresponds sets up first through-hole, and it can supply the diaphragm hangers is worn out, and then provides the surplus for optical diaphragm's expend with heat and contract with cold for the diaphragm hangers more is close to the center outer fringe, need not to leave expend with heat and contract with cold's surplus between diaphragm hangers and center, has reduced the width that the center needs covered, can avoid the production of light leak phenomenon when realizing super narrow frame.
Further, the middle frame comprises a middle frame body and a middle frame side wall, wherein the middle frame body is of a frame-shaped structure and covers the edge surface of the optical diaphragm; the middle frame side wall is formed by extending the outer side edge of the middle frame body towards the direction of the back plate and is positioned on the outer side of the back plate, and the first through hole is formed in the position, corresponding to the diaphragm hanging lug, on the middle frame side wall.
Further, the width of the first through hole is not smaller than the width of the membrane hanging lug.
Furthermore, the backboard comprises a backboard body and a backboard side wall, a concave position is arranged at the edge of the backboard side wall, and the concave position is set as a position reserved for the backboard hook and the diaphragm hanging lug, so that a gap between the middle frame and the backboard after fixed installation can be reduced, and the light leakage phenomenon is avoided; the back plate hook comprises a connecting portion and a hook body, two ends of the connecting portion are fixedly connected with one end of the hook body and the bottom of the concave portion of the side wall of the back plate respectively, and the free end of the hook body is inserted into the positioning hole of the diaphragm hanging lug.
Further, the hook body is perpendicular to the surface of the optical diaphragm, the hook body is perpendicular to the connecting portion, and the connecting portion is perpendicular to the side wall of the back plate.
Furthermore, a second through hole matched with the back plate hook body is formed in the middle frame body, and the hook body is sequentially inserted into the positioning hole and the second through hole. The second through hole is matched with the back plate hook body to further fix the optical diaphragm.
Furthermore, the backboard hook, the backboard side wall and the backboard body are integrally formed, and the structural stability is good.
Furthermore, the back plate comprises four side edges, and each side edge is provided with a back plate hook; the optical diaphragm comprises four side edges, and diaphragm hanging lugs are correspondingly arranged on each side edge, so that the optical diaphragm is fixed more firmly.
Furthermore, a plurality of backboard hooks are arranged on each side edge of the backboard, and a plurality of film hanging lugs are correspondingly arranged on each side edge of the optical film, so that the fixation is firmer.
In addition, the embodiment of the application also provides a display device which comprises the backlight module.
The backlight module provided by the embodiment of the utility model is inserted into the positioning hole at the diaphragm hanging lug through the backboard hook, and is further assisted with the matching of the second through hole on the middle frame body, so as to fix the optical diaphragm, and the backlight module has simple structure, firm fixation and good structural stability; simultaneously set up first through-hole on the center lateral wall, for the expend with heat and contract with cold of optics diaphragm provides the surplus, need not to leave the expend with heat and contract with cold's surplus between diaphragm hangers and center for the diaphragm hangers more is close to the center outer fringe, has reduced the required width of center, can avoid the production of light leak phenomenon when realizing super narrow frame. The backlight module is simple in structure and reasonable in design, the provided display device is provided with the ultra-narrow frame, and the light leakage phenomenon cannot occur.
For a better understanding and an implementation, the present invention is described in detail below with reference to the accompanying drawings.
Drawings
Fig. 1 is a schematic view of a local structure of a back plate when a middle frame and an optical film are not installed in a backlight module according to an embodiment of the present invention;
fig. 2 is a schematic view of a local structure of the back plate and the optical film when the middle frame is not installed in the backlight module according to the embodiment of the present invention;
fig. 3 is a schematic view of a partial structure of a backlight module according to an embodiment of the present invention;
fig. 4 is a cross-sectional view of a back plate hook of a backlight module according to an embodiment of the present invention.
Detailed Description
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Example 1
Referring to fig. 1-4, a schematic diagram of a local structure of a back plate when a middle frame and an optical film are not installed in a backlight module according to an embodiment of the present invention; fig. 2 is a schematic view of a local structure of the back plate and the optical film when the middle frame is not installed in the backlight module according to the embodiment of the present invention; fig. 3 is a schematic view of a partial structure of a backlight module according to an embodiment of the present invention; fig. 4 is a cross-sectional view of a back plate hook of a backlight module according to an embodiment of the present invention.
The embodiment of the utility model provides a backlight module, it includes backplate 10, optics diaphragm 20 and center 30, optics diaphragm 20 set up in between backplate 10 and the center 30.
The backboard 10 comprises a backboard body 12, a backboard side wall 14 and a backboard hook 16 formed by extending outwards from the edge of the backboard side wall 14; concave position 142 has been seted up at backplate lateral wall 14 edge, concave position 142 sets up to set up to reserve the position for backplate couple 16 and diaphragm hangers 24, can reduce the gap between fixed mounting backplate 10 and the middle frame 30, avoids the production of light leak phenomenon. The backboard hook 16 comprises a connecting part 162 and a hook body 164, wherein two ends of the connecting part 162 are respectively fixedly connected with one end of the hook body 164 and the bottom of the concave part 142 of the backboard side wall 34. In this embodiment, the back plate sidewall 14 is formed by extending the outer edge of the back plate body 12 in the same direction, and the back plate sidewall 14 is perpendicular to the plane of the back plate body 12. In other embodiments, the back plate may have other shapes and structures, which may be adjusted as needed.
The optical film 20 comprises a film body 22, the film body 22 comprises a working area 222 and a non-working area 224 located outside the edge of the working area 222, a film hanging lug 24 is arranged on the edge of the non-working area 224, and a positioning hole 242 is arranged on the film hanging lug 24. The free end of the hook body 164 is inserted into the positioning hole 242 of the film hanger 24 to fix the optical film 20. In a preferred embodiment, the backplate hook 16, the backplate side wall 14 and the backplate body 12 are integrally formed, the hook body 164 is perpendicular to the plane of the optical diaphragm 20, the hook body 164 is perpendicular to the connecting portion 162, and the connecting portion 162 is perpendicular to the backplate side wall 14, so that the structure stability is good.
The middle frame 30 is disposed outside the edges of the back plate 10 and the optical diaphragm 20, and specifically includes a middle frame body 32 and a middle frame side wall 34, wherein the middle frame body 32 is a frame-shaped structure, is disposed parallel to the surface of the optical diaphragm 20, and covers the non-working area 224 of the diaphragm body 22; the middle frame side wall 34 is formed by extending the outer edges of the four sides of the middle frame body 32 toward the back plate 10, is perpendicular to the middle frame body 32, and is located outside the back plate side wall 14. A first through hole 36 is formed in the position, corresponding to the extension of the membrane hanging lug 24, on the side wall 34 of the middle frame, the width of the first through hole 36 is not smaller than that of the membrane hanging lug 24, and when the hook body 164 is inserted into the positioning hole 242 at the membrane hanging lug 24, the membrane hanging lug 24 can penetrate out of the first through hole 36; first through-hole 36 can leave the surplus of expend with heat and contract with cold for optics diaphragm 20 for diaphragm hangers 24 is closer to center body 32 outer fringe, has reduced the required width of center 32, can avoid the production of diaphragm hangers department 24 light leak phenomenon when realizing super narrow frame. As a preferred embodiment, the middle frame body 32 is provided with a second through hole 38 at a position corresponding to the hook body 164, the hook body 164 is sequentially inserted into the positioning hole 242 and the second through hole 38, and the optical film 20 is further fixed by the cooperation of the hook body 164 and the second through hole 38, so that the fixation is firmer.
In a preferred embodiment, the back plate sidewall 14 includes four sides, each of which is provided with a back plate hook 16, preferably a plurality of hooks, and the optical film 20 includes four sides, each of which is provided with a plurality of film lugs 24, so that the fixing is more secure.
The backlight module provided by the embodiment of the utility model is inserted into the positioning hole at the diaphragm hanging lug through the backboard hook, and is further assisted with the matching of the second through hole on the middle frame body, so as to fix the optical diaphragm, and the backlight module has simple structure, firm fixation and good structural stability; simultaneously set up first through-hole on the center lateral wall, provide the surplus for the expend with heat and contract with cold of optics diaphragm for the diaphragm hangers more is close to the center outer fringe, need not to leave the surplus of expend with heat and contract with cold between diaphragm hangers and center, has reduced the required width of center, can avoid the production of light leak phenomenon when realizing super narrow frame. The backlight module is simple in structure and reasonable in design, the provided display device is provided with the ultra-narrow frame, and the light leakage phenomenon cannot occur.
Example 2
The display device of this embodiment, include backlight unit. Because the utility model discloses a backlight unit has above-mentioned advantage for display device has super narrow frame, can not appear the light leak phenomenon simultaneously.
The present invention is not limited to the above embodiment, and if various modifications or variations of the present invention do not depart from the spirit and scope of the present invention, they are intended to be covered if they fall within the scope of the claims and the equivalent technology of the present invention.
Claims (10)
1. A backlight module is characterized in that: the optical diaphragm is arranged between the back plate and the middle frame; the optical diaphragm comprises a diaphragm hanging lug, the diaphragm hanging lug is positioned at the edge of the optical diaphragm and is provided with a positioning hole, a back plate hook extends from the edge of the back plate, and the back plate hook is inserted into the positioning hole; the middle frame is arranged on the outer sides of the edges of the back plate and the optical diaphragm, and a first through hole is formed in the position, corresponding to the extension of the diaphragm hanging lug, of the middle frame.
2. A backlight module according to claim 1, wherein: the middle frame comprises a middle frame body and a middle frame side wall, wherein the middle frame body is of a frame-shaped structure and covers the edge surface of the optical diaphragm; the middle frame side wall is formed by extending the outer side edge of the middle frame body towards the direction of the back plate and is positioned on the outer side of the back plate, and the first through hole is formed in the position, corresponding to the diaphragm hanging lug, on the middle frame side wall.
3. A backlight module according to claim 2, wherein: the width of the first through hole is not smaller than that of the membrane hangers.
4. A backlight module according to claim 2, wherein: the back plate comprises a back plate body and a back plate side wall, and the edge of the back plate side wall is provided with a concave position; the back plate hook comprises a connecting portion and a hook body, two ends of the connecting portion are fixedly connected with one end of the hook body and the bottom of the concave portion of the side wall of the back plate respectively, and the free end of the hook body is inserted into the positioning hole of the diaphragm hanging lug.
5. The backlight module according to claim 4, wherein: the hook body is perpendicular to the surface of the optical diaphragm, the hook body is perpendicular to the connecting portion, and the connecting portion is perpendicular to the side wall of the back plate.
6. A backlight module according to claim 5, wherein: the middle frame body is provided with a second through hole matched with the back plate hook body, and the hook body is sequentially inserted into the positioning hole and the second through hole.
7. The backlight module according to claim 4, wherein: the backboard hook, the backboard side wall and the backboard body are integrally formed.
8. A backlight module according to claim 1, wherein: the back plate comprises four side edges, and a back plate hook is arranged on each side edge; the optical diaphragm comprises four side edges, and diaphragm hangers are correspondingly arranged on each side edge.
9. A backlight module according to claim 8, wherein: each side of the back plate is provided with a plurality of back plate hooks, and each side of the optical diaphragm is correspondingly provided with a plurality of diaphragm hooks.
10. A display device, characterized in that: the display device comprises the backlight module set of any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921646478.6U CN210514879U (en) | 2019-09-29 | 2019-09-29 | Backlight module and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921646478.6U CN210514879U (en) | 2019-09-29 | 2019-09-29 | Backlight module and display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210514879U true CN210514879U (en) | 2020-05-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921646478.6U Active CN210514879U (en) | 2019-09-29 | 2019-09-29 | Backlight module and display device |
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| Country | Link |
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| CN (1) | CN210514879U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021243569A1 (en) * | 2020-06-02 | 2021-12-09 | 京东方科技集团股份有限公司 | Backlight module, display device and vehicle |
-
2019
- 2019-09-29 CN CN201921646478.6U patent/CN210514879U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021243569A1 (en) * | 2020-06-02 | 2021-12-09 | 京东方科技集团股份有限公司 | Backlight module, display device and vehicle |
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