CN211264025U - Backlight module and liquid crystal display device - Google Patents
Backlight module and liquid crystal display device Download PDFInfo
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- CN211264025U CN211264025U CN201922484464.5U CN201922484464U CN211264025U CN 211264025 U CN211264025 U CN 211264025U CN 201922484464 U CN201922484464 U CN 201922484464U CN 211264025 U CN211264025 U CN 211264025U
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- backplate
- back plate
- middle frame
- center
- backlight module
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
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- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Liquid Crystal (AREA)
Abstract
The utility model discloses a backlight module and a liquid crystal display device, wherein the backlight module comprises a back plate and a middle frame, and the middle frame covers the edge of the back plate to shield the edge of the back plate; the edge of backplate has seted up threaded through-hole, and the inboard position that corresponds threaded through-hole of center has seted up the screw thread blind hole, and threaded through-hole and screw thread blind hole pass through threaded fastener and connect to can dismantle center and backplate and be connected. This backlight unit accomplishes backplate and center before the installation display screen assembly, the risk of screw with the screen fish tail has effectively been avoided, the risk of screw with the center fish tail has been prevented, and the screw is screwed up from the backplate inboard, the protruding structure in backplate and center to the backplate outside has been complied with, the assembly methods is reasonable, the backplate outside is level and smooth neat after the assembly is accomplished, the local deformation of center and backplate has effectively been prevented, the whole atress of center and backplate is even, the risk that backplate and center are fragile because of the atress is uneven has been avoided, thereby liquid crystal display device's life has been promoted.
Description
Technical Field
The utility model relates to a liquid crystal display technology field, in particular to backlight module and liquid crystal display device.
Background
In traditional liquid crystal display device's backplate and center assembling process, the screw hole of center one side is the through-hole, at first align the assembly with backplate and center, screw up the screw from the backplate outside again, this assembly scheme is after the equipment display screen, there is the risk of fish tail display screen, and cause the center fish tail easily at the in-process of screwing up the screw, and because the whole of backplate and center is outside protrusion, easily cause center and backplate local deformation when the moment of screwing up the screw from the outside is too big locking, easily lead to backplate and center to damage, reduce liquid crystal display device's life, after backplate and center assembly are accomplished, the naked hourglass screw cap of backplate outside outward appearance face, influence pleasing to the eye.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a backlight module and liquid crystal display device aims at solving among the prior art at the assembly process of liquid crystal display device's backplate and center, adopts the fish tail display screen that exists the mode of screwing up the screw from the backplate outside and causes the problem of center and backplate local deformation etc..
In order to achieve the above object, the present invention provides a backlight module, which includes a back plate and a middle frame, wherein the middle frame covers the edge of the back plate to shield the edge of the back plate; the edge of backplate has seted up threaded through-hole, the inboard position that corresponds of center has seted up the screw thread blind hole, the screw thread through-hole with the screw thread blind hole passes through threaded fastener and connects, in order with the center with the backplate can be dismantled and be connected.
Preferably, the center includes the center main part and connects at the outside first extension of center main part, first extension with form the mounting groove between the center main part, the screw thread blind hole is seted up the inboard of first extension, the edge of backplate is arranged in the mounting groove, and with first extension passes through threaded fastener can dismantle the connection.
Preferably, the middle frame main body is further provided with a second extending part, and the first extending part, the middle frame main body and the second extending part are enclosed to form the mounting groove; the edge of backplate is formed with the buckle, the buckle with the mounting groove joint cooperation.
Preferably, the buckle is including the first joint section, linkage segment and the second joint section that connect gradually, first joint section with first extension supports tightly, just the screw thread through-hole is seted up on the first joint section, the linkage segment with the center main part supports tightly, the second joint section with the second extension supports tightly.
Preferably, the top and left and right sides of the back plate are covered with the middle frame, and the top and left and right sides of the back plate are detachably connected with the middle frame through the threaded fasteners.
Preferably, the backlight module further comprises a diffusion plate, the diffusion plate is arranged on the inner side of the back plate, a supporting block is arranged on the ground side of the back plate, and the supporting block abuts against the diffusion plate and forms the diffusion plate.
Preferably, the support block is formed by bending a ground side of the back plate.
Preferably, the number of the supporting blocks is multiple, and the supporting blocks are arranged at intervals along the extending direction of the ground side of the back plate.
Preferably, the back plate and the middle frame are both integrally formed parts.
The utility model discloses still provide a liquid crystal disply device, liquid crystal disply device includes as above backlight unit.
The utility model discloses a backlight unit attacks tooth in the inboard of center, forms the screw thread blind hole, in the assembly process of backplate and center, at first puts the backplate flat, puts the center along the left and right sides of backplate whole the pushing again, aligns up to the screw thread blind hole on the center and the screw thread through-hole on the backplate, locks backplate and center with the screwdriver at last. The utility model discloses a backlight unit accomplishes backplate and well frame assembly before the installation display screen, the risk of screw with the screen fish tail has effectively been avoided, simultaneously because the screw hole of seting up on the center is the screw thread blind hole, backplate outside surface does not have exposed screw cap, the outward appearance is succinct pleasing to the eye, the risk of screw with the center fish tail has also been prevented, and the screw is screwed up from the backplate inboard, the protruding structure in backplate and well frame outside to the backplate has been complied with, the assembly mode is reasonable, assembly completion backplate outside is level and smooth neat, the local deformation of center and backplate has effectively been prevented, the whole atress of having guaranteed center and backplate is even, the risk of backplate and center because of the atress inequality is fragile has been avoided, thereby liquid crystal display device's life has been promoted.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is an inner side perspective view of a backlight module according to an embodiment of the present invention;
FIG. 2 is an enlarged view of area A of FIG. 1;
fig. 3 is an outer side perspective view of a backlight module according to an embodiment of the present invention;
fig. 4 is a schematic cross-sectional view of a backlight module according to an embodiment of the present invention;
fig. 5 is an inner side perspective view of a backlight module according to an embodiment of the present invention;
fig. 6 is an enlarged view of the area B in fig. 5.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 1 | |
21 | Threaded |
| 11 | Threaded through |
22 | |
| 12 | |
221 | |
| 121 | |
222 | |
| 122 | |
223 | |
| 123 | Connecting segment | 3 | |
| 13 | |
4 | |
| 2 | Middle frame |
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that, if directional indications (such as upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
The description of the orientations of "up", "down", "left", "right", etc. in the present invention is based on the orientations shown in fig. 1, fig. 2, and fig. 5, and is only used to explain the relative position relationship between the components in the postures shown in fig. 1, fig. 2, and fig. 5, and if the specific posture is changed, the directional indication is correspondingly changed accordingly.
The utility model provides a backlight module.
As shown in fig. 1 to 6, in the present embodiment, the backlight module includes a back plate 1 and a middle frame 2, wherein the middle frame 2 covers an edge of the back plate 1 to shield the edge of the back plate 1; threaded through hole 11 has been seted up at the edge of backplate 1, and threaded blind hole 21 has been seted up to 2 inboard corresponding threaded through hole 11 positions of center, and threaded through hole 11 and threaded blind hole 21 pass through threaded fastener and connect to can dismantle center 2 and backplate 1 and be connected. In this embodiment, the threaded fastener is a screw 3.
Specifically, in the backlight module of this embodiment, the inner side of the middle frame 2 is tapped to form the blind threaded hole 21, during the assembly process of the back plate 1 and the middle frame 2, the back plate 1 is firstly laid flat, then the middle frame 2 is pushed in along the left and right sides of the back plate 1 until the blind threaded hole 21 on the middle frame 2 is aligned with the through threaded hole 11 on the back plate 1, and finally the back plate 1 and the middle frame 2 are locked by the screw 3. The backlight unit of this embodiment accomplishes backplate 1 and center 2 assembly before the installation display screen, the risk of screw 3 with the screen fish tail has effectively been avoided, simultaneously because the screw hole of seting up on center 2 is screw thread blind hole 21, 1 outside surface of backplate does not expose the screw cap, the outward appearance is succinct pleasing to the eye, the risk of screw 3 with center 2 fish tail has also been prevented, and screw 3 screws up from 1 inboard of backplate, the protruding structure of backplate 1 and center 2 to the backplate 1 outside has been complied with, the assembly methods is reasonable, assembly completion backplate 1 outside is level and smooth neat, effectively prevented center 2 and backplate 1's local deformation, the whole atress that has guaranteed center 2 and backplate 1 is even, the risk that backplate 1 and center 2 are fragile because of the inequality of stress, thereby liquid crystal display device's life has been promoted.
In this embodiment, the middle frame 2 includes a middle frame main body 223 and a first extending portion 221 connected to the middle frame main body 223, a mounting groove 22 is formed between the first extending portion 221 and the middle frame main body 223, the threaded blind hole 21 is opened at the first extending portion 221, and the edge of the back plate 1 is disposed in the mounting groove 22 and detachably connected to the first extending portion 221 through a threaded fastener. As shown in fig. 1 to 4, the first extending portion 221 is a groove wall of the mounting groove 22, the middle frame main body 223 is a groove bottom of the mounting groove 22, the threaded blind hole 21 is formed in the first extending portion 221, the threaded through hole 11 is formed in the edge of the back plate 1, in the process of assembling the back plate 1 and the middle frame 2, the edge of the outer side of the back plate 1 is tightly attached to the first extending portion 221 and pushed in, so that the edge of the back plate 1 is accommodated in the mounting groove 22 until the threaded through hole 11 in the edge of the back plate 1 is aligned with the threaded blind hole 21 in the first extending portion 221, and then the screw 3 is screwed from the inner side of the back plate 1.
Further, the middle frame main body 223 is further provided with a second extending portion 222, and the first extending portion 221, the middle frame main body 223 and the second extending portion 222 are enclosed to form the mounting groove 22; the edge of the back plate 1 is formed with a buckle 12, and the buckle 12 is in snap fit with the mounting groove 22. As shown in fig. 1 to 4, the first extending portion 221 and the second extending portion 222 jointly form the groove walls at two sides of the mounting groove 22, the middle frame main body 223 is the groove bottom of the mounting groove 22, the edge of the back plate 1 is bent to form the buckle 12 matched with the mounting groove 22, the mounting groove 22 is aligned to the buckle 12, the middle frame 2 is directly pushed into the back plate 1, the alignment between the back plate 1 and the middle frame 2 is facilitated, and the assembling efficiency is improved.
In this embodiment, the buckle 12 includes a first clamping section 121, a connecting section 123 and a second clamping section 122 connected in sequence, the first clamping section 121 abuts against the first extending portion 221, the threaded through hole 11 is disposed on the first clamping section 121, the connecting section 123 abuts against the middle frame body 223, and the second clamping section 122 abuts against the second extending portion 222. As shown in fig. 1 to 4, the buckle 12 is tightly engaged with the mounting groove 22, and when the screw 3 is locked, the first extending portion 221 and the first clamping section 121 are always tightly engaged with each other, so as to ensure the overall flatness of the back plate 1.
In this embodiment, the day side and the left and right sides of backplate 1 all cover has center 2, and the day side and the left and right sides of backplate 1 all can dismantle with center 2 through threaded fastener and be connected. As shown in fig. 1 to 4, the upper side and the left and right side edges of the back plate 1 are respectively provided with a plurality of threaded through holes 11 arranged at intervals, and the inner side of the middle frame 2 is provided with threaded blind holes 21 corresponding to the plurality of threaded through holes 11. When backplate 1 and center 2 assemble, at first aim at 1 left and right sides buckle 12 of backplate respectively with the mounting groove 22 of the 2 left and right sides of center, then directly push into backplate 1 with center 2 along the left and right sides of backplate 1 on, the buckle 12 of 1 upside of backplate is gone up to the mounting groove 22 joint of the 2 upsides of center again, screw up through screw 3 with a plurality of screw through-holes 11 and screw blind hole 21 respectively at last, accomplish backplate 1 and center 2's assembly, the assembly is simple and convenient, and center 2 and backplate 1 closely cooperate, backlight unit's overall stability has been promoted.
In this embodiment, the back plate module further includes a diffusion plate 4, the diffusion plate 4 is disposed inside the back plate 1, a supporting block 13 is disposed on the ground side of the back plate 1, and the supporting block 13 abuts against the diffusion plate 4 to form the diffusion plate 4. As shown in fig. 5 and 6, the supporting block 13 for supporting the diffusion plate 4 is arranged at the lower side of the back plate 1, the diffusion plate 4 can be directly lapped on the supporting block 13, a lower middle frame assembly is not required to be arranged, the lower middle frame assembly is omitted, the assembling process is simplified, the reduction of structural members not only enables the assembling process of the backlight module to be simpler, but also reduces the accumulated error of assembly, improves the assembling efficiency, and saves the material cost.
In this embodiment, the supporting block 13 is formed by bending the ground side of the backboard 1. As shown in fig. 5 and 6, the lower side edge of the back plate 1 with the supporting block 13 is formed by bending towards the inner side of the back plate 1, the structural design is reasonable, new assembly components do not need to be added, only the back plate 1 needs to be transformed, and the production, the manufacture and the installation are convenient.
In this embodiment, as shown in fig. 5 and 6, the number of the supporting blocks 13 is plural, and the plural supporting blocks 13 are arranged at intervals along the extending direction of the ground side of the backboard 1. The diffuser plate 4 is supported by the supporting blocks 13, so that the stress of the supporting blocks 13 is uniform, the risk of excessive stress fracture of the supporting block 13 is avoided, the balance of the diffuser plate 4 is guaranteed, and the structural design is reasonable.
In this embodiment, the back panel 1 and the middle frame 2 are integrally formed. The manufacturing of the back plate 1 and the middle frame 2 is facilitated, the middle frame 2 is directly pushed into the back plate 1, the installation can be completed, the assembling difficulty of the backlight module is reduced, meanwhile, the assembling accumulated error of the backlight module is also reduced, and the overall stability of the backlight module is improved.
The utility model also provides a liquid crystal display device, this liquid crystal display device includes foretell backlight unit. Since the liquid crystal display device adopts all technical solutions of all the embodiments, at least all the beneficial effects brought by the technical solutions of the embodiments are achieved, and no further description is given here.
The above is only the preferred embodiment of the present invention, not so limiting the patent scope of the present invention, all of which are in the utility model discloses a conceive, utilize the equivalent structure transform that the content of the specification and the attached drawings did, or directly/indirectly use all to include in other relevant technical fields the patent protection scope of the present invention.
Claims (10)
1. The backlight module is characterized by comprising a back plate and a middle frame, wherein the middle frame covers the edge of the back plate to shield the edge of the back plate; the edge of backplate has seted up threaded through-hole, the inboard position that corresponds of center has seted up the screw thread blind hole, the screw thread through-hole with the screw thread blind hole passes through threaded fastener and connects, in order with the center with the backplate can be dismantled and be connected.
2. The backlight module as claimed in claim 1, wherein the middle frame includes a middle frame main body and a first extending portion connected to the outside of the middle frame main body, a mounting groove is formed between the first extending portion and the middle frame main body, the blind threaded hole is opened at the inner side of the first extending portion, and the edge of the back plate is disposed in the mounting groove and detachably connected to the first extending portion through the threaded fastener.
3. The backlight module as claimed in claim 2, wherein the middle frame main body is further provided with a second extending portion, and the first extending portion, the middle frame main body and the second extending portion are enclosed into the mounting groove; the edge of backplate is formed with the buckle, the buckle with the mounting groove joint cooperation.
4. The backlight module according to claim 3, wherein the clip comprises a first clip section, a connecting section and a second clip section, which are connected in sequence, the first clip section abuts against the first extending portion, the threaded through hole is formed in the first clip section, the connecting section abuts against the middle frame body, and the second clip section abuts against the second extending portion.
5. The backlight module as claimed in claim 1, wherein the middle frame covers the top and left and right sides of the back plate, and the top and left and right sides of the back plate are detachably connected to the middle frame via the screw fasteners.
6. The backlight module as claimed in claim 3, further comprising a diffuser plate disposed inside the back plate, wherein a support block is disposed on a ground side of the back plate, and the support block abuts against and forms the diffuser plate.
7. The backlight module according to claim 6, wherein the supporting block is formed by bending a ground side of the back plate.
8. The backlight module according to claim 7, wherein the supporting blocks are plural in number, and the plural supporting blocks are arranged at intervals along an extending direction of the ground side of the back plate.
9. The backlight module as claimed in claim 4, wherein the back plate and the middle frame are integrally formed.
10. A liquid crystal display device, characterized in that it comprises a backlight module as claimed in claims 1-9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922484464.5U CN211264025U (en) | 2019-12-31 | 2019-12-31 | Backlight module and liquid crystal display device |
| PCT/CN2020/122026 WO2021135519A1 (en) | 2019-12-31 | 2020-10-20 | Backlight module and liquid crystal display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922484464.5U CN211264025U (en) | 2019-12-31 | 2019-12-31 | Backlight module and liquid crystal display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211264025U true CN211264025U (en) | 2020-08-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922484464.5U Active CN211264025U (en) | 2019-12-31 | 2019-12-31 | Backlight module and liquid crystal display device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN211264025U (en) |
| WO (1) | WO2021135519A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112068352A (en) * | 2020-09-04 | 2020-12-11 | 深圳创维－Rgb电子有限公司 | Backlight module and liquid crystal module |
| WO2021135519A1 (en) * | 2019-12-31 | 2021-07-08 | 深圳Tcl新技术有限公司 | Backlight module and liquid crystal display device |
| CN113299189A (en) * | 2021-05-14 | 2021-08-24 | 江苏毅昌科技有限公司 | Frameless module and display device |
| WO2022247484A1 (en) * | 2021-05-28 | 2022-12-01 | 华为技术有限公司 | Electronic device and assembly method for electronic device |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103995384B (en) * | 2014-05-05 | 2017-08-01 | 青岛海信电器股份有限公司 | A kind of liquid crystal module and display device |
| KR20160135894A (en) * | 2015-05-18 | 2016-11-29 | 삼성디스플레이 주식회사 | Display device |
| CN106154615B (en) * | 2016-09-22 | 2020-02-28 | 青岛海信电器股份有限公司 | Liquid crystal module and liquid crystal display device |
| CN106444123A (en) * | 2016-09-22 | 2017-02-22 | 青岛海信电器股份有限公司 | Liquid crystal module and liquid crystal display device |
| CN208000440U (en) * | 2018-01-24 | 2018-10-23 | 北京京东方显示技术有限公司 | Liquid crystal module and display device |
| CN110361880A (en) * | 2019-07-12 | 2019-10-22 | 深圳市万普拉斯科技有限公司 | Display module and its assemble method, display device |
| CN211264025U (en) * | 2019-12-31 | 2020-08-14 | 深圳Tcl新技术有限公司 | Backlight module and liquid crystal display device |
-
2019
- 2019-12-31 CN CN201922484464.5U patent/CN211264025U/en active Active
-
2020
- 2020-10-20 WO PCT/CN2020/122026 patent/WO2021135519A1/en active Application Filing
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021135519A1 (en) * | 2019-12-31 | 2021-07-08 | 深圳Tcl新技术有限公司 | Backlight module and liquid crystal display device |
| CN112068352A (en) * | 2020-09-04 | 2020-12-11 | 深圳创维－Rgb电子有限公司 | Backlight module and liquid crystal module |
| CN113299189A (en) * | 2021-05-14 | 2021-08-24 | 江苏毅昌科技有限公司 | Frameless module and display device |
| WO2022247484A1 (en) * | 2021-05-28 | 2022-12-01 | 华为技术有限公司 | Electronic device and assembly method for electronic device |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2021135519A1 (en) | 2021-07-08 |
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