CN101726879A - Liquid crystal display device and assembly method thereof - Google Patents
Liquid crystal display device and assembly method thereof Download PDFInfo
- Publication number
- CN101726879A CN101726879A CN200810175040A CN200810175040A CN101726879A CN 101726879 A CN101726879 A CN 101726879A CN 200810175040 A CN200810175040 A CN 200810175040A CN 200810175040 A CN200810175040 A CN 200810175040A CN 101726879 A CN101726879 A CN 101726879A
- Authority
- CN
- China
- Prior art keywords
- circuit board
- sided tape
- conductive
- metal framework
- liquid crystal
- 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.)
- Pending
Links
Images
Landscapes
- Liquid Crystal (AREA)
Abstract
The invention provides a liquid crystal display device and an assembly method thereof. The liquid crystal display device comprises a metal frame, a liquid crystal display panel, a circuit board, a protection plate and at least one conductive double-sided tape. The liquid crystal display panel is arranged in the metal frame. The circuit board is arranged on the liquid crystal display panel and the circuit board is provided with a grounding pad. The protection plate covers on the circuit board. The conductive double-sided tape is arranged between the protection plate and the circuit board and used for adhering the protection plate to the circuit board. The conductive double-sided tape is at least adhered to the grounding pad and the metal frame to ensure that the grounding pad, the conductive double-sided tape and the metal frame form a conductive path. Thus, the circuit board is grounded with the metal frame through the conductive double-sided tape.
Description
Technical field
The present invention is relevant for a kind of liquid crystal indicator and assemble method thereof, and especially relevant for a kind of need be to the liquid crystal indicator and the assemble method thereof of circuit board ground connection.
Background technology
Certain part of electronic installation is connected to earthing pole through ground wire is called ground connection, and the purpose of ground connection is present in electrostatic influence wherein even is caused damage because static wounds for fear of the inner member of electronic installation and circuit.The earthing method of general common liquid crystal indicator is that a ground mat is set on circuit board, and by the electric connection of this ground mat and metal framework, reaches the purpose of ground connection.Wherein, common electric connection method for example is to begin to attach from ground mat with a Copper Foil, and extends to metal framework.Perhaps be locked in ground mat, form electric connection by metal clips with contacting of metal framework again with a metal clips.
Yet,,, also need to expend operator's assembling man-hour in addition except the extra mould of needs comes manufacturing copper foil and the metal clips if desire to reach the ground connection means by above-mentioned Copper Foil or metal clips.That is to say, for make circuit board can with metal framework ground connection, must expend many material costs and assembling man-hour, and make the manufacturing cost of product improve many.
Summary of the invention
The invention provides a kind of liquid crystal indicator and assemble method thereof, it forms a conductive path via conductive double-sided tape, so that circuit board is grounded on the metal framework.
According to a first aspect of the invention, a kind of liquid crystal indicator is proposed.Liquid crystal indicator comprises a metal framework, a display panels, a circuit board, a screening glass and at least one conductive double-sided tape.Display panels is arranged in the metal framework.Circuit board is arranged on the display panels, and circuit board has a ground mat.Screening glass is covered on the circuit board.At least one conductive double-sided tape is arranged between screening glass and the circuit board, and conductive double-sided tape is in order to be pasted on screening glass on the circuit board.Conductive double-sided tape is pasted on ground mat and metal framework at least, so that ground mat, conductive double-sided tape and metal framework form a conductive path, makes circuit board be grounded on metal framework via conductive double-sided tape by this.
A kind of assemble method of liquid crystal indicator is proposed according to a second aspect of the invention.The assemble method of liquid crystal indicator comprises the following steps.At first, provide a metal framework.Then, a display panels is set in this metal framework.Then, a circuit board is set on display panels, and circuit board has a ground mat.Then, the back side of at least one conductive double-sided tape in a screening glass is set, this back side is towards circuit board.Then; with conductive double-sided tape screening glass is pasted on the circuit board; wherein conductive double-sided tape is pasted on ground mat and metal framework at least; so that ground mat, conductive double-sided tape and metal framework form a conductive path, circuit board is grounded on the metal framework via conductive double-sided tape.
For foregoing of the present invention can be become apparent, a preferred embodiment cited below particularly, and conjunction with figs. are described in detail below:
Description of drawings
The liquid crystal indicator that Fig. 1 has illustrated preferred embodiment of the present invention contains the top view of a side of circuit board;
Fig. 2 has illustrated the sectional view of the liquid crystal indicator of Fig. 1 along profile line 2-2 ';
Fig. 3 has illustrated the partial enlarged drawing according to the conductive double-sided tape of Fig. 2;
The liquid crystal indicator that Fig. 4 has illustrated another embodiment of the present invention contains the top view of a side of circuit board.
The main element symbol description
100,200: liquid crystal indicator
110: metal framework
120: display panels
130: circuit board
130a: ground mat
140: screening glass
150: conductive double-sided tape
150a: first glue-line
150b: metal level
150c: second glue-line
P: conductive particle
Embodiment
Please refer to Fig. 1, its liquid crystal indicator 100 that has illustrated preferred embodiment of the present invention contains the top view of a side of circuit board 130.Liquid crystal indicator 100 comprises a metal framework 110, a display panels 120, a circuit board 130, a screening glass 140 and at least one conductive double-sided tape 150.Display panels 120 is arranged in the metal framework 110.Circuit board 130 is arranged on the display panels 120, and circuit board 130 has a ground mat 130a.Screening glass 140 is covered on the circuit board 130.Conductive double-sided tape 150 is arranged between screening glass 140 and the circuit board 130, and conductive double-sided tape 150 is in order to be pasted on screening glass 140 on the circuit board 130.Because screening glass 140 is covered on circuit board 130 and the conductive double-sided tape 150, so Fig. 1 is represented by dotted lines circuit board 130.
Please be simultaneously with reference to Fig. 1 and Fig. 2.Fig. 2 has illustrated the sectional view of the liquid crystal indicator 100 of Fig. 1 along profile line 2-2 '.As shown in Figure 2, conductive double-sided tape 150 is pasted on the ground mat 130a and the metal framework 110 of circuit board 130 at least, so that ground mat 130a, conductive double-sided tape 150 and metal framework 110 form a conductive path, make circuit board 130 be grounded on metal framework 110 by this via conductive double-sided tape 150.
So according to above-mentioned structure, conductive double-sided tape 150 not only can be pasted on screening glass 140 on the circuit board 130, and circuit board 130 is grounded on the metal framework 110.Therefore no longer need known at assembling Copper Foil or metal clips that liquid crystal indicator adopted, so can significantly reduce material cost.
Then, will narrate the assemble method of liquid crystal indicator 100 further and ask simultaneously with reference to Fig. 1 and Fig. 2.
At first, provide metal framework 110.Then, display panels 120 is set in metal framework 110.Then, circuit board 130 is set on display panels 120.
Then, the back side of conductive double-sided tape 150 in screening glass 140 is set, this back side is towards circuit board 130.With Fig. 1 is example, and liquid crystal indicator 100 comprises two conductive double-sided tapes 150, and conductive double-sided tape 150 correspondences are arranged at the both sides of screening glass 140 and metal framework 110.Yet conductive double-sided tape 150 for example also can be arranged at the upside of screening glass 140 and metal framework 110 simultaneously.Wherein, screening glass 140 forms a holes that equates with ground mat 130a area and shape corresponding to the position of ground mat 130a.
That is to say; conductive double-sided tape 150 is pasted on the position and the quantity of screening glass 140 then to be decided on the screening glass 140 and the corresponding relation of circuit board 130 and metal framework 110; as long as can firmly screening glass 140 be pasted on the circuit board 130, and make conductive double-sided tape 150 paste ground mat 130a at least and metal framework 110 gets final product.
Then, with conductive double-sided tape 150 screening glass 140 is pasted on the circuit board 130 again.This moment, conductive double-sided tape 150 can successfully be pasted on ground mat 130a and the metal framework 110, so that ground mat 130a, conductive double-sided tape 150 and metal framework 110 form conductive path, circuit board 130 is grounded on the metal framework 110 via conductive double-sided tape 150.
In addition, in the present embodiment, the conductive double-sided tape 150 of part extends to outside the scope of screening glass 140, and is pasted on the side of metal framework 110.This is for conductive double-sided tape 150 can be contacted well with metal framework 110 conductive path of ground connection to be finished.Therefore, if the scope that screening glass 140 is covered contains metal framework 110,, the conductive path of ground connection is finished just conductive double-sided tape 150 need not extend to outside the scope of screening glass 140 so.
So,, when pasting screening glass 140, circuit board 130 is grounded on the metal framework 110 according to above-mentioned assemble method.Therefore no longer need known step, assemble man-hour so can significantly reduce material at assembling set Copper Foil of liquid crystal indicator or metal clips.
Then, please be simultaneously with reference to Fig. 2 and Fig. 3, Fig. 3 has illustrated the partial enlarged drawing according to the conductive double-sided tape 150 of Fig. 2.
In present embodiment, conductive double-sided tape 150 comprises the first glue-line 150a, the second glue-line 150c and a metal level 150b.The back side of the first glue-line 150a and screening glass 140 is bonding.The second glue-line 150c and circuit board 130 are bonding, and are pasted on ground mat 130a and metal framework 110 at least, and the second glue-line 150c has several conductive particles p.Conductive particle p for example is metal powders such as silver powder or nickel powder.Metal level 150b is arranged between the first glue-line 150a and the second glue-line 150c.Metal level 150b for example is copper layer or aluminium lamination.
These a little conductive particle p are distributed in the second glue-line 150c, so that seeing through these a little conductive particle p, conductive double-sided tape 150 forms the vertical conduction path surface of circuit board 130 (in fact perpendicular to), so that circuit board 130 sees through ground mat 130a and metal level 150b electric connection.Metal level 150b is the material of whole conduction, forms a horizontal conductive path (surface that is parallel to circuit board 130 in fact) so that conductive double-sided tape 150 sees through metal level 150b.
Therefore; when screening glass 140 affixes on circuit board 130 and the metal framework 110; circuit board 130 at first can see through ground mat 130a and electrically connect via vertical conduction path and metal level 150b, and metal level 150b just sees through horizontal conductive path again and metal framework 110 electrically connects.Thus, can make circuit board 130 successfully finish ground connection with metal framework 110.
Though the foregoing description is that example is done explanation with two conductive double-sided tapes 150, the quantity of right conductive double-sided tape 150 is not to divide invention in order to limit.The quantity of conductive double-sided tape 150 can be one, two, more than three or even three.Please refer to Fig. 4, its liquid crystal indicator 200 that has illustrated another embodiment of the present invention contains the top view of a side of circuit board.Under the considering of mechanism design and material, the deviser can only be provided with a conductive double-sided tape 150, also can keep enough ground connection effects.Certainly, the deviser also can increase the area of conduction double faced adhesive tape 150, keeps good ground connection effect.
Liquid crystal indicator that the above embodiment of the present invention disclosed and assemble method thereof form a conductive path via conductive double-sided tape between circuit board and metal framework, and then make circuit board be grounded on metal framework through conductive double-sided tape.Thus, just can reduce material cost and reduce assembling man-hour, more can effectively reach the purpose that reduces cost of products and strengthen competitiveness of product.
In sum, though the present invention discloses as above with a preferred embodiment, so it is not in order to limit the present invention.The persond having ordinary knowledge in the technical field of the present invention, without departing from the spirit and scope of the present invention, when being used for a variety of modifications and variations.Therefore, protection scope of the present invention should be as the criterion with defining of claims.
Claims (10)
1. liquid crystal indicator comprises:
One metal framework;
One display panels is arranged in this metal framework;
One circuit board is arranged on this display panels, and this circuit board has a ground mat;
One screening glass is covered on this circuit board; And
At least one conductive double-sided tape; be arranged between this screening glass and this circuit board; this conductive double-sided tape is in order to be pasted on this screening glass on this circuit board; wherein this conductive double-sided tape is pasted on this ground mat and this metal framework at least; so that this ground mat, this conductive double-sided tape and this metal framework form a conductive path, make this circuit board be grounded on this metal framework by this via this conductive double-sided tape.
2. liquid crystal indicator as claimed in claim 1 is characterized in that, this conductive double-sided tape comprises:
First glue-line, bonding with this screening glass;
Second glue-line, bonding with this circuit board, and be pasted on this ground mat and this metal framework at least, and this second glue-line has a plurality of conductive particles; And
One metal level is arranged between this first glue-line and this second glue-line;
Wherein this circuit board electrically connects via these conductive particles and this metal level of this ground mat and this second glue-line, and this metal level electrically connects via these conductive particles and this metal framework.
3. liquid crystal indicator as claimed in claim 2, it is characterized in that, these conductive particles are distributed in this second glue-line, form a vertical conduction path so that this conductive double-sided tape sees through these conductive particles, and this vertical conduction path is in fact perpendicular to the surface of this circuit board.
4. liquid crystal indicator as claimed in claim 2 is characterized in that, this metal level is the material of whole conduction, forms a horizontal conductive path so that this conductive double-sided tape sees through this metal level, and this horizontal conductive path is parallel to the surface of this circuit board in fact.
5. liquid crystal indicator as claimed in claim 1 is characterized in that, this liquid crystal indicator comprises:
A plurality of conductive double-sided tapes are arranged at should the metal framework both sides.
6. liquid crystal indicator as claimed in claim 1 is characterized in that this conduction double faced adhesive tape is pasted on the side of this metal framework.
7. the assemble method of a liquid crystal indicator comprises:
One metal framework is provided;
One display panels is set in this metal framework;
One circuit board is set on this display panels, this circuit board has a ground mat;
The back side of at least one conductive double-sided tape in a screening glass is set, and this back side is intended for this circuit board; And
With this conductive double-sided tape this screening glass is pasted on this circuit board; wherein this conductive double-sided tape is pasted on this ground mat and this metal framework at least; so that this ground mat, this conductive double-sided tape and this metal framework form a conductive path, this circuit board is grounded on this metal framework via this ground mat and this conductive double-sided tape.
8. the assemble method of liquid crystal indicator as claimed in claim 7 is characterized in that, this conductive double-sided tape comprises first glue-line, this conductive double-sided tape being set in this step at the back side of this screening glass, is pasted on this screening glass with this first glue-line.
9. the assemble method of liquid crystal indicator as claimed in claim 8; it is characterized in that; this conductive double-sided tape also comprises second glue-line and a metal level; this second glue-line has a plurality of conductive particles; this metal level is arranged between this first glue-line and this second glue-line; in this step that this screening glass is pasted on this circuit board; bonding with this second glue-line and this circuit board; and this second glue-line is pasted on this ground mat and this metal framework at least; so that this circuit board electrically connects via these conductive particles of this ground mat and this second glue-line and this metal level, and this metal level is via these conductive particles and the electric connection of this metal framework.
10. the assemble method of liquid crystal indicator as claimed in claim 7 is characterized in that, in this step that this screening glass is pasted on this circuit board, this conduction double faced adhesive tape is pasted on the side of this metal framework.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810175040A CN101726879A (en) | 2008-10-24 | 2008-10-24 | Liquid crystal display device and assembly method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810175040A CN101726879A (en) | 2008-10-24 | 2008-10-24 | Liquid crystal display device and assembly method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101726879A true CN101726879A (en) | 2010-06-09 |
Family
ID=42447978
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810175040A Pending CN101726879A (en) | 2008-10-24 | 2008-10-24 | Liquid crystal display device and assembly method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101726879A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102053403A (en) * | 2010-11-10 | 2011-05-11 | 友达光电股份有限公司 | Liquid crystal display module |
| CN104137167A (en) * | 2012-02-15 | 2014-11-05 | 日本精机株式会社 | Display device |
-
2008
- 2008-10-24 CN CN200810175040A patent/CN101726879A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102053403A (en) * | 2010-11-10 | 2011-05-11 | 友达光电股份有限公司 | Liquid crystal display module |
| CN102053403B (en) * | 2010-11-10 | 2012-10-03 | 友达光电股份有限公司 | Liquid crystal display module |
| CN104137167A (en) * | 2012-02-15 | 2014-11-05 | 日本精机株式会社 | Display device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9083344B2 (en) | Touch sensor with integrated signal bus extensions | |
| CN101667373B (en) | Display device | |
| JP6289163B2 (en) | Liquid crystal display | |
| CN113362724B (en) | Display module and display device | |
| US20070030254A1 (en) | Integration of touch sensors with directly mounted electronic components | |
| EP3096594A1 (en) | Circuit protection structure and electronic device | |
| CN105960157A (en) | Electromagnetic shielding protection film and FPC (flexible printed circuit) | |
| CN114822234B (en) | Flexible display module and preparation method thereof | |
| CN111128022B (en) | Display panel, preparation method thereof and display device | |
| CN113362723A (en) | Display module and display device | |
| CN103582286A (en) | Circuit board assembly and camera module | |
| CN102404930A (en) | Improved structure of multilayered flexible printed circuit board (PCB) | |
| CN209150118U (en) | A kind of Flexible Displays structure and electronic equipment | |
| CN207995488U (en) | circuit board, display panel and display device | |
| CN104965612A (en) | Touch screen module and preparation method therefor | |
| CN214851965U (en) | Circuit board and electronic equipment | |
| CN102083272B (en) | Circuit board with grounding structure | |
| CN101726879A (en) | Liquid crystal display device and assembly method thereof | |
| CN202353916U (en) | Improved structure of multilayer flexible printed circuit board | |
| CN103324339B (en) | Contactor control device | |
| CN204117503U (en) | Display device | |
| CN110461086A (en) | A kind of circuit board, circuit board manufacturing method and terminal | |
| US8884164B2 (en) | Circuit board assembly with flexible printed circuit board and reinforcing plate | |
| CN104113992A (en) | Double-sided flexible circuit board possessing shielding structure and method for manufacturing same | |
| CN110336576B (en) | Conductive device and terminal equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20100609 |