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CN102364222B - Backlight module and manufacturing method thereof as well as display device provided with backlight module - Google Patents

Backlight module and manufacturing method thereof as well as display device provided with backlight module Download PDF

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Publication number
CN102364222B
CN102364222B CN 201110312970 CN201110312970A CN102364222B CN 102364222 B CN102364222 B CN 102364222B CN 201110312970 CN201110312970 CN 201110312970 CN 201110312970 A CN201110312970 A CN 201110312970A CN 102364222 B CN102364222 B CN 102364222B
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CN
China
Prior art keywords
joint
backlight module
cable
wire
management device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN 201110312970
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Chinese (zh)
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CN102364222A (en
Inventor
陈森元
和雪芹
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DARWIN PRECISIONS (SUZHOU) Co Ltd
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DARWIN PRECISIONS (SUZHOU) Co Ltd
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Priority to CN 201110312970 priority Critical patent/CN102364222B/en
Publication of CN102364222A publication Critical patent/CN102364222A/en
Application granted granted Critical
Publication of CN102364222B publication Critical patent/CN102364222B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The invention discloses a backlight module and a manufacturing method thereof as well as a display device provided with the backlight module. The backlight module comprises a backboard, a light source device, a cable and a line arranger. The light source device comprises a first joint. The cable comprises a second joint connected with the first joint; and the second joint is provided with first and second side surfaces adjacent to each other. The line arranger is rotationally arranged on the backboard, and a rotating shaft of the line arranger is vertical to the backboard; the line arranger comprises a body and a convex part connected with the body; the body is propped against the first side surface; and the line arranger can be rotated to the convex part to prop the second side surface. In the invention, the backlight module and the display device provided with the backlight module can prevent the joints from loosening during the line arrangement. The manufacturing method of the backlight module disclosed by the invention has the foolproof function of preventing poor assembly and wrong assembly sequence and is beneficial to improve the assembly efficiency.

Description

Backlight module and manufacture method thereof, has the display unit of this backlight module
Technical field
The present invention is about a kind of backlight module and manufacture method thereof and have the display unit of this backlight module, especially has backlight module and the manufacture method thereof of wire-management device and has the display unit of this backlight module about a kind of.
Background technology
Along with the development of society, liquid crystal display (liquid crystal display, LCD) device is widely used because it has the advantages such as thin thickness, low-power consumption, radiation are little, such as LCD TV.And the backlight module of general liquid crystal indicator, backlight module 10 as shown in Figure 1 comprises backboard 11, heat sink 12, light supply apparatus 13 and cable 15.Light supply apparatus 13 is fixed on the heat sink 12, light supply apparatus has at least one luminescence component 131 and light source circuit board 132, luminescence component 131 can for example be light emitting diode (Light Emitting Diode, LED), light source circuit board 132 can produce the driving signal that drives luminescence component 131.Light supply apparatus 13 also comprises the first joint 141.Cable 15 comprises the second joint 142, the second joints 142 and matches with the first joint 141, can be electrically connected by modes such as grafting.The first joint 141 electrically conducts with light source circuit board 132 by the welding of the grafting materials such as soldering, power supply signal passes on each luminescence component 131 by cable 15 and the first joint 141, the second joint 142 and light source circuit board 132, makes its luminous supply LCD device.As shown in Figure 1, backlight module 10 also has a plurality of reason terminals 16, and it is fixed on the backboard 11, by reason terminal 16 cable 15 is put in order according to a certain direction.Cause easily short circuit and backlight module is assembled interference because length of cable is redundant, wiring is in disorder, therefore managing line process need to pull cable 15, make it keep certain rate of tension, but often because overexertion or misoperation, the pulling force that the second joint 142 is subject to cable 15 breaks away from the first joint 141, perhaps the first joint 141 is subjected to the pulling force sealing-off of cable 15 and breaks away from light source circuit board 132, causes at last luminescence component 131 to light.And, cause the second joint and the first joint to get loose or the first joint disengaging light source circuit board at assembling process because pulling cable, if in time do not check and test, after finishing, the backlight module assembling just can find backlight can't lighting, and then dismounting, restructuring cause numerous and diverse, waste a large amount of manpowers and the time of program, caused the low of production efficiency.
Therefore, the present invention causes the second joint to get loose because of the arrangement cable or the first joint breaks away from light supply apparatus and causes at last the problem that can't light backlight for solving in the prior art, a kind of backlight module and display unit with reason line and landing nipple proposed, the present invention also propose a kind of have prevent that assembly program from makeing mistakes or the manufacture method of the backlight module of the foolproof function of assembly failure.
Summary of the invention
The present invention provides a kind of backlight module and display unit that prevents that joint from getting loose for addressing the above problem, in addition, the present invention also provide a kind of have prevent that assembly program from makeing mistakes or the manufacture method of the backlight module of the foolproof function of assembly failure.
One aspect of the present invention provides a kind of backlight module, and it comprises backboard, light supply apparatus, cable and wire-management device.Light supply apparatus comprises the first joint.Cable comprises the second joint, and the second joint and the first joint are connected, and the second joint has the first adjacent side and the second side.Wire-management device rotatably is arranged on the backboard, and rotating shaft is perpendicular to backboard, and wire-management device comprises body and the protuberance that links to each other with body, and body is against the first side, wire-management device can rotate to protuberance against the second side.
In a preferred embodiment of the present invention, backlight module also comprises heat sink, and heat sink is fixed on the backboard, and light supply apparatus is fixed on the heat sink.
In a preferred embodiment of the present invention, body surface has at least one trunking, to settle cable.
In a preferred embodiment of the present invention, body is cylinder.
In a preferred embodiment of the present invention, body and protuberance are one-body molded.
In a preferred embodiment of the present invention, backlight module also comprises the glue frame, and the glue frame is arranged at the heat sink top, and the glue frame has blocking arm, and when wire-management device rotated to protuberance against the second side, blocking arm was against protuberance.
In a preferred embodiment of the present invention, light supply apparatus also comprises light source circuit board, and light source circuit board and the first joint electrically conduct.
The present invention proposes a kind of display unit on the other hand, and it comprises above-mentioned backlight module and display floater, and display floater is arranged on the backlight module.
Further aspect of the present invention provides a kind of manufacture method of backlight module, comprises following steps.Backboard and wire-management device are provided, and wire-management device comprises body and protuberance.Then, wire-management device rotatably is arranged on the backboard, and rotating shaft is perpendicular to backboard.Heat sink, light supply apparatus and cable are provided again, and light supply apparatus comprises the first joint, and cable comprises the second joint, and the second joint matches with the first joint, and the second joint has the first adjacent side and the second side.Then, fixed light source is installed on the heat sink, connects this first joint and the second joint.Fixedly heat sink on backboard so that the first side against body.Then, cable is placed the body surface of wire-management device, pulls cable and manage line, when wire-management device rotate to protuberance against the second side, and cable is when irredundant, reason toe-in bundle.
In a preferred embodiment of the present invention, when reason toe-in bundle, the glue frame is set in the heat sink top, the glue frame has blocking arm, and blocking arm is against protuberance.
Backlight module of the present invention and display unit can prevent effectively that not only the second joint is got loose by cable pull or the first joint disengaging light supply apparatus causes light source to light, avoid dismounting, restructuring, waste a large amount of manpower and time, the problem that causes production efficiency to reduce, the manufacture method of backlight module can also play the foolproof function that prevents that assembly failure, assembling sequence from makeing mistakes, and is conducive to improve packaging efficiency.
Description of drawings
Fig. 1 illustrates a kind of existing backlight module.
Fig. 2 A illustrates the wire-management device of one embodiment of the invention.
Fig. 2 B illustrates the profile of the wire-management device of another embodiment of the present invention.
Fig. 3 illustrates the backlight module of the reason line process of one embodiment of the invention.
Fig. 4 illustrates the backlight module reason toe-in bundle figure of Fig. 3.
Fig. 5 illustrates the backlight module assembling of Fig. 3 and finishes figure.
Fig. 6 illustrates the flow chart of manufacture method of the backlight module of one embodiment of the invention.
The specific embodiment
For making purpose of the present invention, technical scheme and advantage clearer, referring to the accompanying drawing embodiment that develops simultaneously, the present invention is described in more detail.
Please refer to Fig. 2 A, it illustrates the wire-management device of one embodiment of the invention, and wire-management device 26 comprises body 261 and protuberance 262.Body 261 is cylindrical in the present embodiment, and protuberance 262 is cuboid, and both are one-body molded by jetting formation process.Protuberance 262 cross sections are not restricted to rectangle, in other embodiments, also can be other shapes such as trapezoidal, semicircle.In order to strengthen the effect of reason line, the surface of body 261 is provided with two trunkings 2611 in this enforcements, and the degree of depth of trunking 2611 and width are decided according to the model of cable, and the quantity of trunking is also as limit, the number of cables of specifically optionally putting in order and deciding.The top of body 261 also has the first recess 2612 in the present embodiment, for the ease of fixing wire-management device on the axial direction.
Please refer to Fig. 2 B, Fig. 2 B illustrates the profile of the wire-management device of another embodiment of the present invention, its with Fig. 2 A in identical structure repeated description no longer.Body 261 bottoms of wire-management device 26 have the second recess 2613 in the present embodiment.The second recess 2613 can be sheathed on (not shown) on the locating dowel, thereby wire-management device can be rotated around locating dowel.
Please refer to Fig. 3, the backlight module 20 of one embodiment of the invention comprises backboard 21, heat sink 22, light supply apparatus 23 and cable 25.Heat sink 22 is fixed on the backboard 21, and light supply apparatus 23 is fixed on the heat sink 22, and its fixed form can for example be the screw locking.Light supply apparatus 23 has at least one luminescence component 231 and light source circuit board 232.Be furnished with circuit on the light source circuit board 232, can produce the driving signal that drives luminescence component 231.Light supply apparatus 23 also comprises the first joint 241.The first joint 241 is electrically connected with light source circuit board 232, and it can be such as being to weld by grafting materials such as scolding tin.Cable 25 comprises that the second joint 242, the second joints 242 and the first joint 241 are connected, as pegging graft.The second joint 242 has adjacent two sides: the first side 2421 and the second side 2422.Light supply apparatus 23 is the LED lamp bars that comprise a plurality of light emitting diodes (LED) in the present embodiment, heat sink 22 is L shaped aluminium extruded heat sinks, light supply apparatus 23 is locked in the side of heat sink 22, but not as limit, those skilled in the art can design the heat sink of other shapes or the light supply apparatus of other kinds fully as required.
Light supply apparatus 23 is connected with external power source by cable 25, and power supply signal passes on each luminescence component 231 by cable 25 and the first joint 241, the second joint 242 and light source circuit board 232, lights luminescence component 231 to provide backlight to the LCD device.
Please refer to Fig. 3 to Fig. 5, backlight module 20 of the present invention also comprises wire-management device 26, wire-management device 26 rotatably is arranged on the backboard 21, and rotating shaft (being parallel to the z direction among Fig. 3 to Fig. 5) is perpendicular to backboard 21, and wire-management device 26 comprises continuous body 261 and protuberance 262.Body 261 is cylindrical in the present embodiment, and protuberance 262 is cuboid, and both are one-body molded by jetting formation process.The cross section of protuberance 262 is not restricted to rectangle, in other embodiments, can also be other shapes such as trapezoidal, semicircle.In order to strengthen the effect of reason line, the surface of body 261 is provided with two trunkings 2611 in this enforcements, and the degree of depth of trunking 2611 and width are decided according to the model of cable, and the quantity of trunking is as limit, the number of cables of specifically optionally putting in order and deciding.The top of body 261 also has the first recess 2612, for the ease of the upper fixedly wire-management device of axial direction (such as Z direction among Fig. 3).Body 261 bottoms have the second recess 2613 (being illustrated in Fig. 2 B).The second recess 2613 can be sheathed on the locating dowel, and locating dowel can be the cylinder on the backboard of being formed at the backboard one, or is riveting in the rivet on the backboard.Wire-management device 26 is sheathed on by the second recess 2613 and can realizes on the locating dowel being arranged at rotatably on the backboard 21.The body 261 of wire-management device 26 is resisted against the first side 2421 of the second joint 242.The backlight module 20 of present embodiment also comprises the glue frame, and in order to bearing liquid crystal display panel, the glue frame is arranged at heat sink 22 tops, and blocking arm 27 is arranged on the glue frame, is used for against protuberance 262.In addition, the glue frame can be provided with projection corresponding to the position of the first recess 2612, and the projection of glue frame can insert in the first recess 2612 during assembling, can in the fixing wire-management device 26 of axial direction (Z direction in such as Fig. 3), prevent that it breaks away from backboard 21.
The material of wire-management device 26 can be polyethylene, polyvinyl chloride, polystyrene etc., forms integrated structure by jetting formation process.
During the reason line, cable 25 is placed the trunking 2611 of the body 261 of wire-management device 26, pull cable 25 and manage line, owing to the body 261 of wire-management device 26 is rotated by the friction of cable 25, be resisted against the second side 2422 of the second joint 242 when wire-management device 26 rotation to its protuberances 262, and when cable 25 is irredundant, reason toe-in bundle.Those skilled in the art will be appreciated that, pulling cable 25 processes, the protuberance 262 of wire-management device 26 may be resisted against the second side 2422 soon, still have this moment unnecessary cable 25 to need arrangement, can continue to pull cable 25, until cable is irredundant, and have certain rate of tension, manage the toe-in bundle this moment.Certainly, also may exist when cable 25 and put in order, cable is without unnecessary, but protuberance 262 is not resisted against the second side 2422 yet, needs assembler to stir protuberance 262 this moment and makes it against the second side 2422.
Please refer to Fig. 5, when reason toe-in bundle, glue frame (not shown) is set in the top of heat sink 22, the glue frame is used for supporting display panels, and the glue frame has blocking arm 27, and blocking arm 27 is against protuberance 262.As shown in Figure 5, the first side 2421 of the second joint 242 is resisted against body 261, the second sides 2422 and is resisted against protuberance 262.Namely as among Fig. 5, the second joint 242 is subject to the stopping of protuberance 262 of wire-management device 26 in the y direction, and protuberance 262 is subject to stopping of blocking arm 27, be subject to stopping of wire-management device 26 bodies 261 in the x direction, therefore, in pulling the cable process, to have avoided in the prior art because overexertion or misoperation, the second joint 242 is subject to cable pull and breaks away from the first joint 241.Since 26 pairs of the second joints 242 of wire-management device stop that the first joint 241 has also relatively been realized good location, can prevent that the first joint 241 is subjected to cable pull to break away from light source circuit board 232, causes the problem that can't light backlight at last.
The manufacture method of the backlight module 20 of one embodiment of the invention, it comprises the following steps that Fig. 6 illustrates the schematic diagram of each step.
At first, in step S601, as shown in Figure 3, provide backboard 21 and wire-management device 26, wire-management device 26 comprises body 261 and protuberance 262.
Then, in step S602, wire-management device 26 rotatably is arranged on the backboard 21, and the rotating shaft of wire-management device 26 (being parallel to the Z direction among Fig. 3) is perpendicular to backboard 21.One embodiment of the invention arranges the second recess 2613 (being illustrated in Fig. 2 B) by body 261 bottoms at wire-management device 26.The second recess 2613 is sheathed on and makes wire-management device 26 realize rotatably being arranged on the backboard 21 on the locating dowel of backboard, and locating dowel can be and the integrated cylinder that is formed on the backboard of backboard also to be riveting in the rivet on the backboard.
Then, in step S603, as shown in Figure 3, provide heat sink 22, light supply apparatus 23 and cable 25, light supply apparatus 23 comprises the first joint 241.Cable 25 comprises the second joint 242, the second joints 242 and matches with the first joint 241, and the second joint 242 has the first adjacent side 2421 and the second side 2422.Light supply apparatus 23 can be the LED lamp bar that comprises a plurality of LED, by the welding of the grafting materials such as scolding tin itself and the first joint 241 is electrically connected.Heat sink 22 is L shaped aluminium extruded heat sinks, but not as limit, those skilled in the art can design the heat sink of other shapes or the light supply apparatus of other kinds fully as required.
Then, in step S604, please continue with reference to Fig. 3, fixed light source device 23 connects this first joint 241 and the second joint 242 on heat sink 22, and it can for example be to connect by the mode of pegging graft.Can light supply apparatus 23 be locked in the side of heat sink 22 by screw, also can adopt the high-temperature insulation glue bond.
Then, in step S605, the heat sink 22 that assembles light supply apparatus 23 is fixed on the backboard 21, makes the first side 2421 of the second joint 242 against the body 261 of wire-management device 26.
Then, in step S606, as shown in Figure 3, cable 25 is placed the surface of the body 261 of wire-management device 26, pull cable 25 and manage line, the body 261 of wire-management device 26 is subjected to the friction of cable 25 and rotates, when the protuberance 262 of wire-management device 26 the second side 2422 against the second joint 242, and cable 25 is when irredundant, reason toe-in bundle, as shown in Figure 4.Those skilled in the art will be appreciated that, pulling cable 25 processes, the protuberance 262 of wire-management device 26 may be resisted against the second side 2422 very soon, still have this moment unnecessary cable 25 to need arrangement, can continue to pull cable 25, until cable is irredundant, and have certain rate of tension, manage the toe-in bundle this moment.Certainly, also may exist when cable 25 and put in order, cable is without unnecessary, but protuberance 262 is not resisted against the second side 2422 yet, needs assembler to stir protuberance 262 this moment and makes it against the second side 2422.
At last, in step S607, as shown in Figure 5, glue frame (not being shown among the figure) is set in heat sink 22 tops, the glue frame has blocking arm 27, makes blocking arm 27 against the protuberance 262 of wire-management device 26.The glue frame is used for bearing liquid crystal display panel, and glue frame and backboard can be by engaging or the mode such as screw locking is fixed.So, as shown in Figure 5, on the y direction, blocking arm 27 stops protuberance 262, thereby protuberance 262 stops the second side 2422.Therefore, the second joint 242 is subject to the stopping of protuberance 262 of wire-management device 26 in the y direction, be subject to stopping of wire-management device 26 bodies 261 in the x direction.Therefore, in pulling the cable process, avoided in the prior art because overexertion or misoperation, the second joint 242 is subjected to cable pull easily to break away from the first joint 241.Simultaneously and since 26 pairs of the second joints 242 of wire-management device stop that the first joint 241 has also been realized good location relatively, can prevent that the first joint 241 is subjected to cable pull to break away from light source circuit board 232, causes the problem that can't light backlight at last.
The manufacture method of backlight module 20 of the present invention can prevent not only that the second joint 242 and the first joint 241 from getting loose or the first joint 241 breaks away from light supply apparatuses 23, also has to prevent that assembly failure, assembling sequence from putting upside down the foolproof function of makeing mistakes.For example, in the S604 of manufacture method of the present invention step, if the first joint 241 and the second joint 242 are not inserted into the position in step before, in this step, the entire length of the first joint 241 and the second joint 242 can increase after cooperating, and then can and can't smoothly heat sink 22 be fixed on the backboard 21 with wire-management device 26 generation interference.At this moment, assembler can in time check, queueing problem.If finishing, the S606 step namely do not carry out step S607, then since the protuberance 262 of wire-management device 26 not against the second side 2422 of the second joint 242, but become other directions, not parallel with the x direction such as protuberance among Fig. 5 262, but be other angles with the x direction, then the blocking arm 27 of glue frame can produce with protuberance 262 and interfere, and can't assemble smoothly.
Backlight module of the present invention and display unit not only can effectively prevent from managing and got loose by cable pull the second joint or the first joint disengaging light supply apparatus, cause light source to light, the problem that causes a large amount of manpower of the wastes such as dismounting, restructuring and time and reduce production efficiency.The manufacture method of backlight module of the present invention can also play the foolproof function that prevents that assembly failure, assembling sequence from makeing mistakes, and is conducive to improve packaging efficiency.
The present invention is described by above-mentioned related embodiment, yet above-described embodiment is only for implementing example of the present invention.Must be pointed out that the embodiment that has disclosed does not limit the scope of the invention.On the contrary, the change of doing without departing from the spirit and scope of the present invention and retouching all belong to scope of patent protection of the present invention.

Claims (10)

1. backlight module is characterized in that comprising:
Backboard;
Light supply apparatus, this light supply apparatus comprises the first joint;
Cable, this cable comprises the second joint, and the second joint and the first joint are connected, and this second joint has the first adjacent side and the second side;
Wire-management device, it rotatably is arranged on this backboard, and rotating shaft is perpendicular to backboard, this wire-management device comprises body and the protuberance that links to each other with body, this body is against this first side, this wire-management device can rotate to this protuberance against this second side.
2. backlight module as claimed in claim 1 characterized by further comprising heat sink, and this heat sink is fixed on this backboard, and this light supply apparatus is fixed on this heat sink.
3. backlight module as claimed in claim 2 characterized by further comprising the glue frame, and it is arranged at this heat sink top, and this glue frame has blocking arm, and when this wire-management device rotated to this protuberance against this second side, this blocking arm was against this protuberance.
4. backlight module as claimed in claim 1 is characterized in that this body surface has at least one trunking, to settle cable.
5. backlight module as claimed in claim 1 is characterized in that this body is cylinder.
6. backlight module as claimed in claim 1 is characterized in that this body and this protuberance are one-body molded.
7. backlight module as claimed in claim 1 is characterized in that light supply apparatus also comprises light source circuit board, and this light source circuit board and the first joint electrically conduct.
8. display unit is characterized in that comprising:
Such as the described backlight module of claim 1-7 any one;
And display floater, this display floater is arranged on this backlight module.
9. the manufacture method of a backlight module is characterized in that comprising the following step:
Backboard and wire-management device are provided, and this wire-management device comprises body and protuberance;
Wire-management device rotatably is arranged on this backboard, and rotating shaft is perpendicular to backboard;
Heat sink, light supply apparatus and cable are provided, and this light supply apparatus comprises the first joint, and this cable comprises the second joint, and the second joint matches with the first joint, and this second joint has the first adjacent side and the second side;
Fixed light source is installed on the heat sink, connects this first joint and the second joint;
Fixedly heat sink on backboard so that this first side against this body;
Cable is placed the body surface of wire-management device, pulls this cable and manage line, when the wire-management device rotation to this protuberance against this second side, and cable is when irredundant, reason toe-in bundle.
10. manufacture method as claimed in claim 9 when reason toe-in bundle, arranges the glue frame in the heat sink top, and this glue frame has blocking arm, and this blocking arm is against this protuberance.
CN 201110312970 2011-10-17 2011-10-17 Backlight module and manufacturing method thereof as well as display device provided with backlight module Expired - Fee Related CN102364222B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201110312970 CN102364222B (en) 2011-10-17 2011-10-17 Backlight module and manufacturing method thereof as well as display device provided with backlight module

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201110312970 CN102364222B (en) 2011-10-17 2011-10-17 Backlight module and manufacturing method thereof as well as display device provided with backlight module

Publications (2)

Publication Number Publication Date
CN102364222A CN102364222A (en) 2012-02-29
CN102364222B true CN102364222B (en) 2013-04-24

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Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100805127B1 (en) * 2001-05-17 2008-02-21 삼성전자주식회사 LCD device with lamp wire fixing groove
CN2622735Y (en) * 2003-04-16 2004-06-30 广辉电子股份有限公司 Fixed plastic frame group and backlight module
CN201716492U (en) * 2010-04-24 2011-01-19 华映光电股份有限公司 Liquid crystal display and cable arranging structure thereof

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Granted publication date: 20130424

Termination date: 20161017