CN109637359B - Backlight lamp strip, location backplate and backlight unit - Google Patents

Backlight lamp strip, location backplate and backlight unit Download PDF

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Publication number
CN109637359B
CN109637359B CN201910048810.7A CN201910048810A CN109637359B CN 109637359 B CN109637359 B CN 109637359B CN 201910048810 A CN201910048810 A CN 201910048810A CN 109637359 B CN109637359 B CN 109637359B
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China
Prior art keywords
mounting hole
positioning
lamp strip
backlight
plate
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CN201910048810.7A
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CN109637359A (en
Inventor
吴春生
薛银艳
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BOE Technology Group Co Ltd
Hefei BOE Display Lighting Co Ltd
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BOE Technology Group Co Ltd
Hefei BOE Display Lighting Co Ltd
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Publication of CN109637359A publication Critical patent/CN109637359A/en
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    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09FDISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Planar Illumination Modules (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)

Abstract

The invention discloses a backlight lamp bar, a positioning back plate and a backlight module. Backlight lamp strip includes: the lamp strip body is provided with a penetrating rod at one end in a vertical mode, a matching part is arranged at the other end of the lamp strip body, and a hinge shaft is transversely arranged on the penetrating rod; and the clamping plate is positioned on the side part of the penetrating rod and is rotatably arranged on the hinge shaft. Backlight lamp strip is fixed on the location backplate through wearing dress pole, cooperation portion and joint board, and backlight lamp strip fixed position is only on the location backplate, can not influence the optical picture quality of the display device who makes, and there is not the cull in the PCB board after backlight lamp strip and location backplate are disassembled.

Description

Backlight lamp strip, location backplate and backlight unit
Technical Field
This paper relates to display device technical field, indicates especially a backlight lamp strip, a location backplate and a backlight unit.
Background
As shown in fig. 1, a double-sided fixing tape is attached to the back surface of the PCB of the light bar, and the light bar is attached and fixed to the inner side surface of the back plate by the double-sided tape, so that in the actual operation process, because the double-sided tape is attached manually, the tape is often wrinkled, which causes the problem that the attachment plane is not flat, and the quality of the optical picture is affected; and when needing the lamp strip to pull down from the backplate, because the PCB board is the aluminium material, disassemble and can lead to the PCB board to appear warping, damage and cull scheduling problem, influence the secondary use of lamp strip.
Disclosure of Invention
In order to solve at least one of the above technical problems, the present disclosure provides a backlight light bar, which can solve the problems of residual glue of a PCB after the light bar and a back plate are disassembled.
The invention also provides a positioning back plate and a backlight module.
The invention provides a backlight lamp strip, comprising: the lamp strip body is provided with a penetrating rod at one end in a vertical mode and a matching part at the other end, and a hinge shaft is transversely arranged on the penetrating rod; and the clamping plate is positioned on the side part of the penetrating rod and is rotatably arranged on the hinge shaft.
Optionally, the card connector comprises: the first clamping and connecting plate is positioned on one side of the penetrating rod and is rotatably arranged at one end of the hinge shaft; and the second clamping and connecting plate is positioned on the other side of the penetrating rod and is rotatably arranged at the other end of the hinge shaft.
Optionally, the penetrating rod is a long strip-shaped rod, the clamping plate is a long strip-shaped plate, and the long edge of the clamping plate is larger than the wide edge of the penetrating rod.
Optionally, the penetrating rod, the hinge shaft and the clamping plate comprise multiple groups.
The positioning back plate provided by the invention is suitable for fixing the backlight lamp strip in any embodiment, and comprises: the backplate body that has diapire and lateral wall, be formed with the holding tank on the medial surface of backplate body, be provided with mounting hole and constant head tank on one in preceding lateral wall of holding tank and the back lateral wall, the one end of constant head tank with the mounting hole communicates with each other, be provided with the bayonet socket on preceding lateral wall of holding tank and another in the back lateral wall, cooperation portion is used for the card to go into in the bayonet socket, wear the dress pole and be used for stretching into in the mounting hole, the joint board is used for the swing with the card income in the constant head tank.
Optionally, the positioning slot comprises: the first positioning groove is arranged close to the mounting hole, one end of the first positioning groove is communicated with the mounting hole, and the first clamping plate swings to be clamped into the first positioning groove in an interference mode; and the second positioning groove is closed to the installation hole, one end of the installation hole is communicated with the installation hole, and the second clamping plate swings to be clamped in the second positioning groove in an interference manner.
Optionally, the first positioning groove and the second positioning groove are located on the same side of the mounting hole or on both sides of the mounting hole.
Optionally, a positioning convex portion is arranged on the other one of the front side wall and the rear side wall of the accommodating groove, and the bayonet is formed between the positioning convex portion and the bottom wall of the accommodating groove.
Optionally, the mounting holes and the positioning grooves comprise a plurality of groups.
The invention provides a backlight module, comprising: the backlight light bar of any of the above embodiments; and the positioning back plate of any embodiment, the matching part is clamped in the clamping opening, the penetrating rod extends into the mounting hole, and the clamping plate swings to be clamped in the positioning groove.
Compared with the prior art, the backlight lamp strip provided by the invention is fixed on the positioning back plate through the penetrating rod, the matching part and the clamping plate, the backlight lamp strip is fixed on the positioning back plate only, the optical picture quality of the manufactured display equipment cannot be influenced, and the residual glue does not exist on the PCB after the backlight lamp strip and the positioning back plate are disassembled.
Additional features and advantages of the disclosure will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the disclosure. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
The accompanying drawings are included to provide a further understanding of the embodiments herein and are incorporated in and constitute a part of this specification, illustrate embodiments herein and are not to be construed as limiting the embodiments herein.
Fig. 1 is a schematic cross-sectional view of a backlight module according to an embodiment of the invention;
FIG. 2 is a schematic cross-sectional view of a right side view of the back light module shown in FIG. 1;
FIG. 3 is a schematic top view of the structure of FIG. 2;
fig. 4 is a schematic front view of the backlight light bar in fig. 2;
FIG. 5 is a schematic sectional view A-A of FIG. 4;
fig. 6 is a schematic partial structure view of the backlight light bar in fig. 2;
fig. 7 to 9 are schematic structural views of the mounting hole, the first positioning groove and the second positioning groove according to different embodiments of the present invention.
Wherein, the correspondence between the reference numbers and the part names in fig. 1 to 9 is:
1 backplate body, 11 holding tanks, 12 location convex parts, 13 bayonets, 14 mounting holes, 15 first constant head tank, 16 second constant head tanks, 2 lamp strip bodies, 21 wear to adorn the pole, 22 first joint board, 23 second joint board, 24 rivets, 25 terminal mouth, 26 lamp pearls, 27PCB board, 3 gluey frames, 4 reflector plates, 5 light guide plates, 6 membrane materials, 7 screens, 8 fixed adhesive tapes.
Detailed Description
To make the objects, technical solutions and advantages of the present invention more apparent, the embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present disclosure, however, the present disclosure may be practiced otherwise than as specifically described herein, and thus the scope of the present disclosure is not limited by the specific embodiments disclosed below.
As shown in fig. 1 to 3, the backlight module provided in the present invention includes: a backlight light bar; and the backlight lamp bar is fixed on the positioning back plate.
According to the backlight module, the fixed position of the backlight lamp bar on the positioning back plate is unique, and the optical picture quality of the manufactured display equipment cannot be influenced.
Wherein, as shown in fig. 4 to 6, the backlight light bar includes: a penetrating rod 21 is vertically arranged at one end of the lamp strip body 2, a matching part is arranged at the other end of the lamp strip body, and a hinge shaft is transversely arranged on the penetrating rod 21; the clamping plate is positioned on the side part of the penetrating rod 21 and can be rotatably arranged on the hinge shaft; the positioning back plate comprises: backplate body 1 with diapire and lateral wall is formed with the holding tank on backplate body 1's the medial surface, is provided with mounting hole 14 and constant head tank on the preceding lateral wall of holding tank, and the one end of constant head tank communicates with each other with mounting hole 14, is provided with bayonet 13 on the back side wall of holding tank. The matching part is clamped into the bayonet 13, the penetrating rod 21 is used for extending into the mounting hole 14, and the clamping plate is used for swinging to be clamped into the positioning groove.
Wear dress pole 21 (drive joint board) and stretch into mounting hole 14 earlier in for backlight lamp strip moves forward towards the whole of the preceding lateral wall of holding tank, make cooperation portion swing and move to the place ahead of bayonet 13, then move backlight lamp strip backward, make cooperation portion stretch into in the bayonet 13 completely, and wear dress pole 21 and still wear to adorn in mounting hole 14 (the one end of the orientation lamp strip body 2 of joint board is outside mounting hole 14), prevent that lamp strip body 2 card from going into the in-process of buckle and taking place to warp and crooked, damage. Then the joint board rotates 90 degrees and the horizontal hunting stretches out to adopt to fix in the constant head tank like the mode plug-in card of interference, carry out fore-and-aft direction and circumference location, fix backlight lamp strip completely, whole lamp strip body 2 does not receive external force basically, prevents that lamp strip body 2 from warping and causing the problem of damaging or influencing display device's optical picture quality, and there is not the cull in the PCB board of backlight lamp strip after backlight lamp strip and the location backplate are disassembled.
Further, as shown in fig. 5 and 6, the card contact plate includes: a first catching plate 22 positioned at one side of the penetration rod 21 and rotatably installed at one end of the hinge shaft; and a second catching plate 23 positioned at the other side of the penetration rod 21 and rotatably installed at the other end of the hinge shaft; as shown in fig. 7 to 9, the positioning groove includes: the first positioning groove 15 is arranged close to the mounting hole 14, one end of the first positioning groove is communicated with the mounting hole 14, and the first clamping plate 22 swings to be clamped into the first positioning groove 15 in an interference mode; and a second positioning groove 16 which is provided adjacent to the mounting hole 14 and has one end communicating with the mounting hole 14, and the second click plate 23 swings to be clicked into the second positioning groove 16 with interference. Wherein, wearing dress pole 21 is rectangular shape pole, and joint board is rectangular shape board, and the long limit of joint board is greater than the broadside of wearing dress pole 21.
Wear dress pole 21 (drive first joint board 22 and second joint board 23) and stretch into mounting hole 144 earlier in for backlight lamp strip moves forward towards the whole antedisplacement of the preceding lateral wall of holding tank, cooperation portion swing and move to the place ahead of bayonet 13, then back backlight lamp strip, make cooperation portion stretch into in the bayonet 13 completely, and wear dress (the one end of the orientation backlight lamp strip of first joint board 22 and second joint board 23 is outside mounting hole 14) is still worn in mounting hole 144 to dress pole 21, prevent 2 joint in-process of lamp strip body emergence warp and crooked, damage. Then first joint board 22 and second joint board 23 rotate 90 degrees in proper order, the equal horizontal hunting of one end towards lamp strip body 2 of first joint board 22 and second joint board 23 stretches out, the interference card is inserted respectively and is gone into in first constant head tank 15 and the second constant head tank 16, carry out fore-and-aft direction and circumference location, fix the lamp strip in a poor light completely, whole lamp strip body 2 does not receive external force basically, prevent that lamp strip body 2 from warping and causing the problem of damage or influence display device's optical picture quality.
The first engaging plate 22 and the second engaging plate 23 may also be provided with only one (the first installation groove 11 and the second installation groove 11 are also provided with one), and the purpose of the present application can also be achieved.
Preferably, the mounting hole may be a blind hole or a through hole, and the first positioning groove and the second positioning groove may also be through holes (see fig. 1), all of which can achieve the purpose of the present application, and the purpose of the present application does not depart from the design concept of the present invention, and will not be described herein again, and all of which shall fall within the protection scope of the present application.
Specifically, the first positioning groove 15 and the second positioning groove 16 may be located on the same side of the mounting hole 14 (in fig. 8, both the first engaging plate 22 and the second engaging plate 23 swing 90 degrees laterally clockwise or counterclockwise) or may be located on both sides of the mounting hole 14 (in fig. 7, one of the first engaging plate 22 and the second engaging plate 23 swings 90 degrees laterally clockwise and the other swings 90 degrees laterally counterclockwise). The width of the first engaging plate 22 and the second engaging plate 23 may be set to be smaller than or equal to the width of the fitting rod 21 so that the first engaging plate 22 and the second engaging plate 23 are not interfered with by the mounting hole 14 during the swing. When dismantling backlight lamp strip, only need with the installation reverse operation can, can not cause the damage to lamp strip body 2, avoided the problem of lamp strip body 2 deformation, damage etc.. The whole process is not suitable for double faced adhesive tapes, and the problem of adhesive residue does not exist after the backlight lamp strip is detached.
In addition, as shown in fig. 9, the first positioning slot 15 and the second positioning slot 16 may be respectively disposed at two sides of the mounting hole 14 (the mounting hole 14, the first positioning slot 15 and the second positioning slot 16 form a "i" or "i" character), and the first clamping plate 22 and the second clamping plate 23 are respectively clamped in any one of the first positioning slot 15 and any one of the second positioning slot 16, so as to achieve the purpose of the present application. The first positioning groove 15 and the second positioning groove 16 may be through-hole holes (or may be provided as through-holes).
Specifically, as shown in fig. 1, a positioning protrusion 12 is disposed on a rear side wall of the receiving groove, and a bayonet 13 is formed between the positioning protrusion 12 and a bottom wall of the receiving groove. The positioning convex part 12 can be a positioning protrusion, and the matching part is located on the rear edge of the light bar body 2. Moreover, mounting hole 14 with the constant head tank is including the interval two sets of that set up, wears dress pole 21, articulated shaft and joint plate including corresponding two sets of that set up for backlight lamp strip more firm location is in the holding tank and not become flexible. The mounting bar 21 may be a thin bar, and the first engaging plate 22 and the second engaging plate 23 may be thin plates. The two sheets may be rotatably mounted on both sides of the thin bar by rivets 24, the rivets 24 serving as hinge axes.
As shown in fig. 1, reference numeral 25 is a terminal port, reference numeral 26 is a lamp bead, reference numeral 27 is a PCB of a lamp strip body, reference numeral 3 is a rubber frame, the rubber frame 3 can be assembled after the backlight lamp strip and the positioning backboard are assembled, reference numeral 4 is a reflector plate, reference numeral 5 is a light guide plate, reference numeral 6 is a film material, reference numeral 7 is a screen, and reference numeral 8 is a fixing adhesive tape of the terminal port.
In summary, the backlight lamp strip provided by the invention is fixed on the positioning back plate through the penetrating rod, the matching part and the clamping plate, the backlight lamp strip is fixed on the positioning back plate only, the optical picture quality of the manufactured display device cannot be influenced, and the residual glue does not exist on the PCB after the backlight lamp strip and the positioning back plate are disassembled.
In the description herein, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., "connected" may be a fixed connection, a removable connection, or an integral connection; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms herein can be understood by those of ordinary skill in the art as appropriate.
In the description of the specification, reference to the term "one embodiment," "some embodiments," "a specific embodiment," or the like, means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example herein. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although the embodiments disclosed herein are described above, the descriptions are only for the convenience of understanding the embodiments and are not intended to limit the disclosure. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the disclosure, and that the scope of the disclosure herein may be limited only by the appended claims.

Claims (10)

1. A backlight light bar, comprising:
the lamp strip body is provided with a penetrating rod at one end in a vertical mode and a matching part at the other end, and a hinge shaft is transversely arranged on the penetrating rod; and
the clamping and connecting plate is located on the side portion of the penetrating rod and rotatably mounted on the hinge shaft, and can swing to be clamped into the positioning grooves which are formed in a matched mode, so that the backlight lamp bar is fixed.
2. The backlight light bar of claim 1, wherein the snap plate comprises:
the first clamping and connecting plate is positioned on one side of the penetrating rod and is rotatably arranged at one end of the hinge shaft; and
and the second clamping and connecting plate is positioned on the other side of the penetrating rod and is rotatably arranged at the other end of the hinge shaft.
3. The backlight lamp bar of claim 1 or 2, wherein the through rod is an elongated rod, the clamping plate is an elongated plate, and the long side of the clamping plate is larger than the wide side of the through rod.
4. The backlight lamp strip of claim 1 or 2, wherein the penetration rod, the hinge shaft and the clamping plate comprise a plurality of groups.
5. A positioning back plate suitable for fixing the backlight lamp strip of any one of claims 1 to 4, comprising:
the backplate body that has diapire and lateral wall, be formed with the holding tank on the medial surface of backplate body, be provided with mounting hole and constant head tank on one in preceding lateral wall of holding tank and the back lateral wall, the one end of constant head tank with the mounting hole communicates with each other, be provided with the bayonet socket on preceding lateral wall of holding tank and another in the back lateral wall, cooperation portion is used for the card to go into in the bayonet socket, wear the dress pole and be used for stretching into in the mounting hole, the joint board is used for the swing with the card income in the constant head tank.
6. The positioning bezel of claim 5, wherein the positioning slot comprises:
the first positioning groove is arranged close to the mounting hole, one end of the first positioning groove is communicated with the mounting hole, and the first clamping plate swings to be clamped into the first positioning groove in an interference mode; and
the second constant head tank closes on the mounting hole sets up, and one end with the mounting hole intercommunication, the swing of second joint board is gone into with the interference card in the second constant head tank.
7. The locating backplate of claim 6, wherein the first locating groove and the second locating groove are located on the same side of the mounting hole or on both sides of the mounting hole.
8. The locating backplate of any one of claims 5 to 7, wherein the other of the front and rear side walls of the receiving groove is provided with a locating projection which forms the bayonet with the bottom wall of the receiving groove.
9. The positioning back plate of any one of claims 5-7, wherein the mounting holes and the positioning grooves comprise a plurality of sets.
10. A backlight module, comprising:
the backlight light bar of any one of claims 1 to 4; and
the positioning backplate of any one of claims 5-9, wherein the mating portion is snapped into the notch, the wear bar extends into the mounting hole, and the snap plate swings to snap into the positioning slot.
CN201910048810.7A 2019-01-18 2019-01-18 Backlight lamp strip, location backplate and backlight unit Active CN109637359B (en)

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CN109637359B true CN109637359B (en) 2022-02-01

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Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201501591U (en) * 2009-09-16 2010-06-09 安徽古井贡酒股份有限公司 Wine bottle packaging box
CN201885172U (en) * 2010-11-04 2011-06-29 华映视讯(吴江)有限公司 Display module and lamp strip fixing device thereof
CN204420904U (en) * 2015-03-13 2015-06-24 合肥京东方显示光源有限公司 A kind of light bar fixing device and be provided with the backlight of this light bar fixing device
CN204748516U (en) * 2015-05-19 2015-11-11 东莞市品耀自动化设备有限公司 LED lamp strip assembly device
CN105116591A (en) * 2015-09-29 2015-12-02 创维液晶器件(深圳)有限公司 Sidelight type liquid crystal display module structure
CN105807490A (en) * 2016-05-10 2016-07-27 京东方科技集团股份有限公司 Backlight module, assembling method thereof and display device
CN106016017A (en) * 2016-06-30 2016-10-12 东莞市乐威节能科技有限公司 Automatic assembly LED side light-emitting panel lamp and assembly method thereof
CN106444157A (en) * 2016-11-29 2017-02-22 广东长虹电子有限公司 Lamp bar fixed structure, backlight module and displayer
CN207366897U (en) * 2017-11-08 2018-05-15 昆山龙腾光电有限公司 A kind of LED light bar, backlight module and display device

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201501591U (en) * 2009-09-16 2010-06-09 安徽古井贡酒股份有限公司 Wine bottle packaging box
CN201885172U (en) * 2010-11-04 2011-06-29 华映视讯(吴江)有限公司 Display module and lamp strip fixing device thereof
CN204420904U (en) * 2015-03-13 2015-06-24 合肥京东方显示光源有限公司 A kind of light bar fixing device and be provided with the backlight of this light bar fixing device
CN204748516U (en) * 2015-05-19 2015-11-11 东莞市品耀自动化设备有限公司 LED lamp strip assembly device
CN105116591A (en) * 2015-09-29 2015-12-02 创维液晶器件(深圳)有限公司 Sidelight type liquid crystal display module structure
CN105807490A (en) * 2016-05-10 2016-07-27 京东方科技集团股份有限公司 Backlight module, assembling method thereof and display device
CN106016017A (en) * 2016-06-30 2016-10-12 东莞市乐威节能科技有限公司 Automatic assembly LED side light-emitting panel lamp and assembly method thereof
CN106444157A (en) * 2016-11-29 2017-02-22 广东长虹电子有限公司 Lamp bar fixed structure, backlight module and displayer
CN207366897U (en) * 2017-11-08 2018-05-15 昆山龙腾光电有限公司 A kind of LED light bar, backlight module and display device

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