CN102073160B - Liquid crystal display device - Google Patents
Liquid crystal display device Download PDFInfo
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- CN102073160B CN102073160B CN 200910310333 CN200910310333A CN102073160B CN 102073160 B CN102073160 B CN 102073160B CN 200910310333 CN200910310333 CN 200910310333 CN 200910310333 A CN200910310333 A CN 200910310333A CN 102073160 B CN102073160 B CN 102073160B
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- liquid crystal
- wiring board
- flexible printed
- printed wiring
- crystal panel
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Abstract
The present invention discloses a liquid crystal display device, which comprises a liquid crystal panel and a flexible printed wiring board electrically connected with the liquid crystal panel; a drive chip is arranged on the liquid crystal panel, and is covered by the flexible printed wiring board. A metal conducting layer on the flexible printed wiring board of the liquid crystal display device is served as a metal radome of the drive chip, which effectively prevents external static electricity flowing through the drive chip, simultaneously effectively solves the technical problems that the dirve chip can not work or be damaged caused by the electromagnetic interference generated by the drive chip itself.
Description
Technical field
The present invention relates to a kind of liquid crystal indicator.
Background technology
In recent years, liquid crystal indicator has occupied the main flow that shows product gradually because possessing frivolous, little, the advantage such as radiation is little that takes up room of volume.In liquid crystal indicator, liquid crystal panel itself is not luminous, but provides luminous uniform planar light by backlight module for it.
Liquid crystal panel comprises upper and lower two sheet glass substrates and is clipped in the liquid crystal layer of two sheet glass substrates.The infrabasal plate of this glass substrate comprises that one drives chip (Driver IC), is used for driving the luminous flux that liquid crystal panel control is supplied with by backlight module, and then the abundant image of display color.This driving chip is fixed on this liquid crystal panel by COG (Chip On Glass) technology, and a black photo-shield strip is attached at and prevents on this driving chip that ambient light from shining this driving chip back reflection and causing the bright dipping of liquid crystal panel inhomogeneous.
Yet this drives the speed of the signal transmission of chip, and the direction in vertical this liquid crystal panel under high frequency produces the electromagnetic interference (EMI) phenomenon easily, and then causes driving chip cisco unity malfunction.Simultaneously, this driving chip is also than the impact that is easier to be subject to static and cisco unity malfunction.
Summary of the invention
For the driving chip that solves the prior art liquid crystal indicator is vulnerable to electrostatic interference, itself also produce electromagnetic interference (EMI) and cause flimsy technical matters, be necessary to provide a kind of well behaved liquid crystal indicator.
A kind of liquid crystal indicator, it comprises a liquid crystal panel and a flexible printed wiring board that is electrically connected with this liquid crystal panel, arranges one on the liquid crystal panel and drives chip, this flexible printed wiring board covers this driving chip.
A kind of liquid crystal indicator, it comprises a liquid crystal panel and a circuit board, and the driving chip is set on the liquid crystal panel, on this circuit board metal conducting layer is set, this circuit board covers this driving chip.
Compared with prior art, metal conducting layer in this liquid crystal indicator on the flexible printed wiring board serves as the metallic shield that drives chip, effectively prevent exterior static this driving chip of flowing through, effectively solved simultaneously owing to drive driving chip cisco unity malfunction that the electromagnetic interference (EMI) phenomenon of chip generation itself causes or the technical matters of damage.
Description of drawings
Fig. 1 is the three-dimensional exploded view of liquid crystal indicator the first embodiment of the present invention.
Fig. 2 is that liquid crystal indicator shown in Figure 1 is partly assembled synoptic diagram.
Fig. 3 is the schematic perspective view of the driving chip of liquid crystal indicator flexible printed wiring board edges cover liquid crystal panel shown in Figure 2.
Fig. 4 is along the schematic cross-section at IV-IV place among Fig. 3.
Fig. 5 is the three-dimensional exploded view of liquid crystal indicator the second embodiment of the present invention.
Fig. 6 is the schematic perspective view of the driving chip of liquid crystal indicator flexible printed wiring board partial coverage liquid crystal panel shown in Figure 5.
The main element symbol description
Liquid crystal indicator 100,700
Flexible printed wiring board 2,3
Electronic component 21
Backlight module 4
Drive chip 10,101
Top glass substrate 12
Extension 130,137
Optical diaphragm group 41
Sidewall 433,730
Groove 430
Exiting surface 441
Embodiment
See also Fig. 1 to Fig. 4, Fig. 1 is the three-dimensional exploded view of liquid crystal indicator the first embodiment of the present invention, Fig. 2 is that liquid crystal indicator shown in Figure 1 is partly assembled synoptic diagram, Fig. 3 is the schematic perspective view of the driving chip of this liquid crystal indicator flexible printed wiring board edges cover liquid crystal panel shown in Figure 2, and Fig. 4 is along the schematic cross-section at IV-IV place among Fig. 3.
Flexible printed wiring board (Flexible Printed Circuit, FPC) 2 and backlight module 4 that liquid crystal indicator 100 comprises liquid crystal panel 1, is electrically connected with liquid crystal panel 1.This backlight module 4 provides uniform planar light with this liquid crystal panel 1 stacked this liquid crystal panel 1 that is set to.The edge that flexible printed wiring board one end is fixed in liquid crystal panel 1, and the edge of bending covering liquid crystal panel 1.
This liquid crystal panel 1 comprises upper polaroid 11, top glass substrate 12, lower glass substrate 13, the lower polaroid 14 of stacked setting and is clipped in liquid crystal layer (not shown) between this upper and lower glass substrate 12,13.The length of this lower glass substrate 13 is greater than this top glass substrate 12, to form an extension 130 growing part.Arrange on the face of this top glass substrate 12 of the vicinity of this extension 130 and drive chip 10.Preferably, drive the centre position that chip 10 is positioned at extension 130.This liquid crystal panel 1 is fixed and be electrically connected to this driving chip 10, is used for driving this liquid crystal panel 1 and then controlling the luminous flux of being supplied with by this backlight module 4.This extension 130 comprises a first end adjacent with this top glass substrate 12 and second end relative with this first end.This first end can be regarded in fact the separatrix of these lower glass substrate 13 these extensions 130 as, and the second end is the outermost edges that this lower glass substrate 13 is longer than this top glass substrate 12.
This flexible printed wiring board 2 comprises at least two insulation course (not shown) and the metal conducting layer (not shown) between two insulation courses.Metal conducting layer inside comprises many circuits, is used for the transmission of signal.This flexible printed wiring board 2 comprises a kink (not indicating) and a metal pins section (not indicating).This kink covers this driving chip 10, and this metal pins section extends the external circuit board and carries out the signal transmission.Specifically this flexible printed wiring board 2 comprises long limit a, and two relatively and side b, the d adjacent with this long limit a, a long limit c relative with growing limit a.In the present embodiment, the length of side d is less than the length of side b; Long limit c is the broken line structure, and it comprises two first, second minor face c1, c2 and the vertical three minor face c3s that connect this first, second minor face c1, c2 parallel with long limit a.The first minor face c1 links to each other with side d, and the 3rd minor face c3 links to each other with side b, and the length of the second minor face c2 substantially edge length with the second end of the extension 130 of this liquid crystal panel 1 is identical.In other embodiments, can design as the case may be the shape of flexible printed wiring board 2, and attach on it.This flexible printed wiring board 2 is drawn exposed metal pins by this d end, is used for carrying out the signal transmission with the external circuit board.Be provided with electronic component 21 on this flexible printed wiring board 2, for example electric capacity is used for reception and passes to this liquid crystal panel 1 from the signal of external circuit and with signal.
This backlight module 4 comprises optical diaphragm group 41, light source 42, glue frame 43, light guide plate 44 and reflector plate 45.This glue frame 43 comprises four sidewalls that join end to end and connect, one sidewall 433 comprises a groove 430, the adjacent edge on the limit that extension 130 and the flexible printed wiring board 2 of this groove 430 and this liquid crystal panel 1 attaches mutually is corresponding, and namely this groove 430 can make the d end that makes this flexible printed wiring board 2 after the assembling draw the metal pins that order exposes to be electrically connected with external circuit.These groove 430 width are slightly wide or be equal to the side d of flexible printed wiring board 2.This light guide plate 44 comprises exiting surface 441, the incidence surface 442 adjacent with this exiting surface 441 and the bottom surface 443 relative with exiting surface 441.
During assembling, glue frame 43 is accommodated this optical diaphragm group 41, this strip source 42, this light guide plate 44, this reflector plate 45 and this liquid crystal panel 1.The adjacent setting of incidence surface 442 1 sides of this strip source 42 and this light guide plate 44, the bottom surface 443 of these reflector plate 45 contiguous these light guide plate 44 arranges, and the exiting surface 441 of these optical diaphragm group 41 contiguous these light guide plate 44 arranges, and then finishes the assembling of this backlight module 4.This liquid crystal panel 1 contiguous this optical diaphragm group 41 arranges, and the edge of this lower glass substrate 13 of the side wall support of this glue frame 43 is used for fixing this liquid crystal panel 1 in this glue frame 43.These flexible printed wiring board 2 bendings, its a holds the edge of the top glass substrate 12 of the first end that is attached at contiguous this extension 130, and then cover this driving chip 10, the 3rd minor face c3 of this flexible printed wiring board 2 is in bending state, and extend via the groove 430 of this sidewall 433 in the zone that side d, the first minor face c1 and long limit a surround, and this d end is drawn exposed metal pins and carried out signal with the external circuit board and transmit.This electronic component 21 is avoided with this driving chip 10, is independent of each other.
Compared to prior art, flexible printed wiring board 2 bendings of the present invention cover this and drive chip 10.Owing to be provided with metal conducting layer on this flexible printed wiring board 2, the metallic shield that can serve as this driving chip 10, effectively solved driving chip 10 cisco unity malfunctions or the damage that cause owing to driving the chip 10 electromagnetic interference (EMI) phenomenons that produce own, the surface insulation layer of this flexible printed wiring board 2 can stop effectively that exterior static is to the infringement of this driving chip 10 simultaneously.
See also Fig. 5 and Fig. 6, Fig. 5 is the three-dimensional exploded view of liquid crystal indicator the second embodiment of the present invention, and Fig. 6 is the schematic perspective view of the driving chip of liquid crystal indicator flexible printed wiring board partial coverage liquid crystal panel shown in Figure 5.The difference of the liquid crystal indicator 700 of present embodiment and the liquid crystal indicator 100 of the first embodiment is: flexible printed wiring board 3 is substantially L-shaped, and it comprises e, f, g, h, i, the j limit that sequentially connects.E limit and i limit parallel relative, the f limit is parallel with the h limit relatively, j limit and g limit are these L shaped two ends.The f limit is identical with the second end length of liquid crystal panel 1 extension 137, and attaches on it.I limit and h limit arrange sheared edge k, can make this h spring folding.The part on this e, j, i, k, f limit consists of a metal pins section (not indicating), the part on this k, h, g, f limit consists of a kink (not indicating), the sidewall 733 of glue frame 73 comprises a sidewall 730, and this sidewall 730 can make this metal pins section extend and make this j end draw exposed metal pins and carry out signal with the external circuit board and transmit.This h limit makes this kink cover this driving chip 101 to the first end bending of this extension 137.
The present invention more has other embodiments, is attached at the edge of polaroid 11 contiguous extension 130 first ends on this and then wraps up this driving chip 10 such as its second minor face c2 after the flexible printed wiring board bending.For another example, the independent metal conductive film of liquid crystal indicator utilization covers this driving chip.
Claims (7)
1. liquid crystal indicator, it comprises a liquid crystal panel, one flexible printed wiring board that is electrically connected with this liquid crystal panel and a backlight module, this liquid crystal panel comprises and stackedly arranges first, second substrate and be sandwiched in first, liquid crystal layer between second substrate, this backlight module and the stacked setting of this liquid crystal panel and be positioned near this first substrate, away from this second substrate one side, first substrate forms an extension, has the driving chip on the liquid crystal panel, this driving chip be arranged on this extension on the face of second substrate, this extension comprises first end and with this first end relative second end adjacent with second substrate, it is characterized in that: on one side this flexible printed wiring board is electrically connected the second end of this extension, another relative edge is arranged at the edge adjacent with this first end of this second substrate, to cover this driving chip; Wherein, this flexible printed wiring board comprises at least two insulation courses and the metal conducting layer between two insulation courses.
2. liquid crystal indicator as claimed in claim 1, it is characterized in that: on one side this flexible printed wiring board is electrically connected the second end of this extension, another relative edge is attached at the edge of the second substrate of adjacent this first end.
3. liquid crystal indicator as claimed in claim 1, it is characterized in that: this flexible printed wiring board comprises a kink and a metal pins section that is connected with this kink, this kink covers this and drives chip after bending, this metal pins end is used for being electrically connected to external printed circuit board to carry out the signal transmission.
4. liquid crystal indicator as claimed in claim 3, it is characterized in that: this kink and a metal pins section form a L shaped structure.
5. liquid crystal indicator as claimed in claim 3 is characterized in that: have a sheared edge between this kink and the metal pins section, so that this kink bending.
6. liquid crystal indicator as claimed in claim 3, it is characterized in that: this backlight module comprises a framework, and this framework comprises four sidewalls, and the one sidewall comprises a groove, is used for the drawing of metal pins section of this flexible printed wiring board.
7. liquid crystal indicator as claimed in claim 1, it is characterized in that: this multiple layer metal conductive layer inside comprises many circuits, is used for the transmission of signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910310333 CN102073160B (en) | 2009-11-24 | 2009-11-24 | Liquid crystal display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910310333 CN102073160B (en) | 2009-11-24 | 2009-11-24 | Liquid crystal display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102073160A CN102073160A (en) | 2011-05-25 |
| CN102073160B true CN102073160B (en) | 2013-04-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910310333 Active CN102073160B (en) | 2009-11-24 | 2009-11-24 | Liquid crystal display device |
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| CN (1) | CN102073160B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102620195B (en) * | 2012-03-13 | 2014-07-16 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display |
| CN102982744B (en) * | 2012-12-17 | 2014-09-24 | 广东威创视讯科技股份有限公司 | Display module of LED (light emitting diode) |
| JP6337424B2 (en) * | 2013-06-12 | 2018-06-06 | 三菱電機株式会社 | Liquid crystal display device and method for inspecting liquid crystal display device |
| TWI518649B (en) * | 2013-06-14 | 2016-01-21 | 友達光電股份有限公司 | Display module |
| CN112394577A (en) * | 2020-12-02 | 2021-02-23 | 上海摩软通讯技术有限公司 | Display module and display device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2724039Y (en) * | 2004-09-02 | 2005-09-07 | 胜华科技股份有限公司 | Liquid crystal display module |
| CN101067694A (en) * | 2006-03-20 | 2007-11-07 | 三星电子株式会社 | Container member, manufacturing method of container member and flat panel display using the same |
| CN101231405A (en) * | 2007-01-26 | 2008-07-30 | 株式会社日立显示器 | Touch-panel-equipped display module |
| CN101321431A (en) * | 2007-06-04 | 2008-12-10 | 株式会社东芝 | Flexible printed circuit board and electronic apparatus |
-
2009
- 2009-11-24 CN CN 200910310333 patent/CN102073160B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2724039Y (en) * | 2004-09-02 | 2005-09-07 | 胜华科技股份有限公司 | Liquid crystal display module |
| CN101067694A (en) * | 2006-03-20 | 2007-11-07 | 三星电子株式会社 | Container member, manufacturing method of container member and flat panel display using the same |
| CN101231405A (en) * | 2007-01-26 | 2008-07-30 | 株式会社日立显示器 | Touch-panel-equipped display module |
| CN101321431A (en) * | 2007-06-04 | 2008-12-10 | 株式会社东芝 | Flexible printed circuit board and electronic apparatus |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2001-264751A 2001.09.26 |
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| Publication number | Publication date |
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| CN102073160A (en) | 2011-05-25 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: QIMEI ELECTRONIC CO LTD Free format text: FORMER OWNER: INNOLUX DISPLAY CO., LTD. Effective date: 20120320 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20120320 Address after: 4, 1 floor, E zone, Foxconn science and Technology Industrial Park, Longhua Town, Baoan District, Guangdong, Shenzhen 518109, China Applicant after: Qunkang Technology (Shenzhen) Co., Ltd. Co-applicant after: Chimei Optoelectronics Co., Ltd. Address before: 518109 Longhua, Shenzhen, town, Foxconn science and Technology Industrial Park E District, building 1, floor 4, Applicant before: Qunkang Technology (Shenzhen) Co., Ltd. Co-applicant before: Innolux Display Group |
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