CN100464228C - Liquid crystal display device - Google Patents
Liquid crystal display device Download PDFInfo
- Publication number
- CN100464228C CN100464228C CNB2005101211956A CN200510121195A CN100464228C CN 100464228 C CN100464228 C CN 100464228C CN B2005101211956 A CNB2005101211956 A CN B2005101211956A CN 200510121195 A CN200510121195 A CN 200510121195A CN 100464228 C CN100464228 C CN 100464228C
- Authority
- CN
- China
- Prior art keywords
- liquid crystal
- flexible circuit
- circuit board
- crystal indicator
- metal frame
- 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
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- Liquid Crystal (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The liquid crystal display (LCD) device includes a LCD faceplate, a flexible circuit plate, and a backlight module. The flexible circuit plate is connected to the LCD faceplate. The backlight module is in use for providing plane light for LCD faceplate. The flexible circuit plate includes a grounding portion. The backlight module includes a metal frame. The metal frame includes a retention portion. Being matched to grounding portion of the flexible circuit plate, the retention portion makes the metal frame connect the grounding portion of the flexible circuit plate. The LCD device possesses better reliability.
Description
[technical field]
The present invention relates to a kind of liquid crystal indicator.
[background technology]
Because liquid crystal indicator has advantages such as in light weight, thin thickness, power consumption are little, thereby is widely used in modernized information equipments such as TV, notebook computer, mobile phone, personal digital assistant.
A kind of liquid crystal indicator of prior art as depicted in figs. 1 and 2, this liquid crystal indicator 10 comprises a liquid crystal panel 12, a flexible circuit board (Flexible Printed Circuit, FPC) 13 and one module 15 backlight.This flexible circuit board 13 links to each other with liquid crystal panel 12, is used to this liquid crystal panel 12 transmitting display signal therefors.This module 15 backlight and liquid crystal panel 12 stacked settings are used to this liquid crystal panel 12 that planar light is provided.This module 15 backlight comprises a glue frame 17 and a metal frame 18, and this glue frame 17 engages with metal frame 18 to accommodate and this liquid crystal panel 12 of fixing other element (figure does not show) with module 15 backlight.
This flexible circuit board 13 has a grounding parts 133, and this grounding parts 133 is the ground wire exposed part of this flexible circuit board 13.When assembling this flexible circuit board 13, this flexible circuit board 13 is bent to this module backlight 15 back sides, the grounding parts 133 of this flexible circuit board 13 is attached on this metal frame 18 by conducting resinl 19, to reach the ground connection purpose, thereby can reduce this liquid crystal indicator 10 electromagnetic interference (EMI) (Electromagnetic Interference, EMI).
Yet, the viscosity of this conducting resinl 19 can increase in time and die down, this conducting resinl 19 can cause this flexible circuit board 13 and the impedance of this metal frame 18 to become big because part comes off, this conducting resinl 19 even may all come off, make and the ability drop of these liquid crystal indicator 10 anti-electromagnetic interference (EMI) cause the reliability of this liquid crystal indicator 10 relatively poor.
[summary of the invention]
In order to solve the relatively poor problem of liquid crystal indicator reliability in the prior art, be necessary the liquid crystal indicator that provides a kind of reliability preferable.
A kind of liquid crystal indicator, it comprises a liquid crystal panel, a flexible circuit board and a module backlight; This flexible circuit board is connected to this liquid crystal panel; This module backlight is used to this liquid crystal panel that planar light is provided; This flexible circuit board comprises a grounding parts, this module backlight comprises a metal frame, this metal frame comprises a holding parts, this holding parts matches with the grounding parts of this flexible circuit board, make the grounding parts of this metal frame and this flexible circuit board join, this flexible circuit board further comprises an extension, this extension is from the outward extending outshot in the edge of this flexible circuit board, this grounding parts is arranged on this extension end, this holding parts is the strip slit, and this extension cooperates with this slit and can insert wherein.
Compared to prior art, this liquid crystal indicator matches with the holding parts of this metal frame by the grounding parts of flexible circuit board, thereby reaches the ground connection purpose, and this earthing mode is an Elastic Contact, reliability is higher, and then has improved the reliability of this liquid crystal indicator.
[description of drawings]
Fig. 1 is the synoptic diagram of a kind of liquid crystal indicator of prior art.
Fig. 2 is the flexible circuit board assembling synoptic diagram of liquid crystal indicator shown in Figure 1.
Fig. 3 is the synoptic diagram of liquid crystal indicator one better embodiment of the present invention.
Fig. 4 is the synoptic diagram before the liquid crystal indicator assembling flexible circuit board shown in Figure 3.
Fig. 5 is the synoptic diagram behind the liquid crystal indicator assembling flexible circuit board shown in Figure 3.
[embodiment]
See also Fig. 3, Fig. 4 and Fig. 5, be the synoptic diagram of liquid crystal indicator one better embodiment of the present invention.This liquid crystal indicator 20 comprises a liquid crystal panel 22, a flexible circuit board 23 and a module 25 backlight.This liquid crystal panel 22 is used for showing.This flexible circuit board 23 links to each other with liquid crystal panel 22, is used to transmit this liquid crystal panel 22 and shows required picture signal.This module 25 backlight and liquid crystal panel 22 stacked settings are used to this liquid crystal panel 22 that planar light is provided.This module 25 backlight comprises a glue frame 27 and a metal frame 28, and this glue frame 27 engages with metal frame 28 to accommodate other element with this module 25 backlight of fixing.This metal frame 28 can be become by aluminium, iron or copper.
This flexible circuit board 23 comprises two extensions 230, two first grounding parts 231 and two second grounding parts 233.This extension 230 is from the outward extending outshot in the relative both sides of the edge of this flexible circuit board 23.This first grounding parts 231 and second grounding parts 233 are the ground wire exposed part of this flexible circuit board 23.This first grounding parts 231 is arranged on the end of this extension 230.This second grounding parts 233 is arranged on the relative both sides of the edge of this flexible circuit board 23.
This metal frame 28 comprises two first holding parts 281, two second holding parts 283, a diapire 285 and relative two sidewalls 286.These two sidewalls 286 respectively with these diapire 285 vertical connections.These two first holding parts 28 are separately positioned on this diapire 285 and these two sidewall 286 joints.These two second holding parts 283 are oppositely arranged on this diapire 285 both sides of the edge.
This first holding parts 281 is the strip slit, and it matches with this extension 230, can insert in this first holding parts 281 behind about 90 degree of these extension 230 bendings.This extension 230 can make first grounding parts 231 on this extension 230 contact with this metal frame 28 by the restoring force after bending, and then reaches the ground connection purpose.
This second holding parts 283 comprises the elastic 288 of " ㄇ " shape slit 287 and the definition of this slit.This second holding parts 283 matches with this second grounding parts 233, and this second grounding parts 233 is inserted in this slit 287, and elastic deformation will take place, and this second grounding parts 233 contacts with this elastic 288 by elastic deformation, and then reaches the ground connection purpose.
This liquid crystal indicator 20 matches with the holding parts 281,283 of this metal frame 28 by the grounding parts 231,233 of flexible circuit board 23, thereby reach the ground connection purpose, and earthing mode is an Elastic Contact, and reliability is higher, and then has improved the reliability of this liquid crystal indicator 20.
Claims (8)
1. liquid crystal indicator, it comprises a liquid crystal panel, one flexible circuit board and a module backlight, this flexible circuit board is connected to this liquid crystal panel, this module backlight is used to this liquid crystal panel that planar light is provided and comprises a metal frame, this flexible circuit board comprises a grounding parts, it is characterized in that: this metal frame comprises a holding parts, this holding parts matches with the grounding parts of this flexible circuit board, make the grounding parts of this metal frame and this flexible circuit board join, this flexible circuit board further comprises an extension, this extension is from the outward extending outshot in the edge of this flexible circuit board, this grounding parts is arranged on this extension end, this holding parts is the strip slit, and this extension cooperates with this slit and can insert wherein.
2. liquid crystal indicator as claimed in claim 1 is characterized in that: this grounding parts and this holding parts are Elastic Contact.
3. liquid crystal indicator as claimed in claim 1 is characterized in that: this metal frame further comprises a diapire and two sidewalls, these two sidewalls respectively with this diapire vertical connection.
4. liquid crystal indicator as claimed in claim 3 is characterized in that: this slit is arranged on this diapire and sidewall junction.
5. liquid crystal indicator as claimed in claim 3 is characterized in that: this holding parts is two, and these two holding parts are separately positioned on this diapire and this two sidewall joints.
6. liquid crystal indicator as claimed in claim 1 is characterized in that: this flexible circuit board also comprises a grounding parts, and this grounding parts is arranged on the edge of flexible circuit board, and this metal frame also comprises a holding parts, and this holding parts comprises one
The elastic of shape slit and the definition of this slit, this grounding parts can be inserted in this slit, and contacts this elastic.
7. liquid crystal indicator as claimed in claim 1 is characterized in that: the material of this metal frame is aluminium, iron or copper.
8. liquid crystal indicator as claimed in claim 1 is characterized in that: this grounding parts is the ground wire exposed part of this flexible circuit board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101211956A CN100464228C (en) | 2005-12-23 | 2005-12-23 | Liquid crystal display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101211956A CN100464228C (en) | 2005-12-23 | 2005-12-23 | Liquid crystal display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1987587A CN1987587A (en) | 2007-06-27 |
| CN100464228C true CN100464228C (en) | 2009-02-25 |
Family
ID=38184439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005101211956A Expired - Fee Related CN100464228C (en) | 2005-12-23 | 2005-12-23 | Liquid crystal display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100464228C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101726921B (en) * | 2008-10-24 | 2011-07-13 | 比亚迪股份有限公司 | Liquid crystal display module |
| CN101984370A (en) * | 2009-06-17 | 2011-03-09 | 天马微电子股份有限公司 | Three-dimensional display device |
| CN102055926B (en) * | 2009-11-06 | 2015-06-24 | 康佳集团股份有限公司 | Split liquid crystal television and realizing method thereof |
| CN102566091A (en) * | 2010-12-23 | 2012-07-11 | 东莞万士达液晶显示器有限公司 | Liquid crystal display device |
| CN106054452A (en) * | 2016-07-11 | 2016-10-26 | 深圳天珑无线科技有限公司 | Liquid crystal module and display |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1152881A (en) * | 1997-08-08 | 1999-02-26 | Canon Inc | Liquid crystal device |
| US6490016B1 (en) * | 1999-06-30 | 2002-12-03 | Tokyo Shibaura Electric Co | Flat-panel display device having a backlight and an electromagnetic shield casing |
| CN1479142A (en) * | 2002-06-03 | 2004-03-03 | 三星电子株式会社 | Liquid crystal display device with noise shielding element |
| US20040114062A1 (en) * | 2001-05-09 | 2004-06-17 | Toshiya Nishio | Display module and display unit |
| US20040169782A1 (en) * | 2003-02-27 | 2004-09-02 | Ching-Kun Lai | Liquid crystal module |
| US20040257515A1 (en) * | 2002-12-30 | 2004-12-23 | Lee Sang-Duk | Flat panel display apparatus |
| US20050024573A1 (en) * | 2003-07-31 | 2005-02-03 | Isamu Suzuki | Display panel having noise shielding structure |
| JP2005055512A (en) * | 2003-08-05 | 2005-03-03 | Sharp Corp | Ground connecting structure, display device, and ground connection method |
| CN1609921A (en) * | 2003-10-16 | 2005-04-27 | 三星Sdi株式会社 | plasma display unit |
-
2005
- 2005-12-23 CN CNB2005101211956A patent/CN100464228C/en not_active Expired - Fee Related
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1152881A (en) * | 1997-08-08 | 1999-02-26 | Canon Inc | Liquid crystal device |
| US6490016B1 (en) * | 1999-06-30 | 2002-12-03 | Tokyo Shibaura Electric Co | Flat-panel display device having a backlight and an electromagnetic shield casing |
| US20040114062A1 (en) * | 2001-05-09 | 2004-06-17 | Toshiya Nishio | Display module and display unit |
| CN1479142A (en) * | 2002-06-03 | 2004-03-03 | 三星电子株式会社 | Liquid crystal display device with noise shielding element |
| US20040257515A1 (en) * | 2002-12-30 | 2004-12-23 | Lee Sang-Duk | Flat panel display apparatus |
| US20040169782A1 (en) * | 2003-02-27 | 2004-09-02 | Ching-Kun Lai | Liquid crystal module |
| US20050024573A1 (en) * | 2003-07-31 | 2005-02-03 | Isamu Suzuki | Display panel having noise shielding structure |
| JP2005055512A (en) * | 2003-08-05 | 2005-03-03 | Sharp Corp | Ground connecting structure, display device, and ground connection method |
| CN1609921A (en) * | 2003-10-16 | 2005-04-27 | 三星Sdi株式会社 | plasma display unit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1987587A (en) | 2007-06-27 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090225 Termination date: 20201223 |