CN1570717A - Signal transmission device for liquid crystal display - Google Patents
Signal transmission device for liquid crystal display Download PDFInfo
- Publication number
- CN1570717A CN1570717A CN 200410042068 CN200410042068A CN1570717A CN 1570717 A CN1570717 A CN 1570717A CN 200410042068 CN200410042068 CN 200410042068 CN 200410042068 A CN200410042068 A CN 200410042068A CN 1570717 A CN1570717 A CN 1570717A
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- CN
- China
- Prior art keywords
- liquid crystal
- printed wiring
- crystal display
- flexible printed
- wiring board
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Abstract
A signal transmission apparatus for LCD display connected with a LCD display module and a system comprises first flexible printing circuit board and second flexible printing circuit board. The first flexible printing circuit board is connected with LCD display module and above system. And second flexible printing circuit board is electrically connected with LCD display module and above first flexible printing circuit board, wherein, the first and second flexible printing circuit are connected through thermal welding or each guiding anisotropy conductive film.
Description
Technical field
The present invention relates to a kind of liquid crystal display signal transmitting device, particularly relate to and a kind ofly can save space and tool liquid crystal display signal transmitting device cheaply.
Background technology:
At first see also Fig. 1, the liquid crystal display device module 10 of prior art generally transmits following three kinds of signals by flexible printed wiring board: liquid crystal panel signal, contact panel signal and light signal.Wherein, liquid crystal display device module 10 inside of prior art have assemblies such as contact panel, liquid crystal panel, light source, and see through first, second and the 3rd flexible printed wiring board 102,104,106 respectively so as to transmitting foregoing liquid crystal panel signal, contact panel signal and light signal to a system (not shown).Yet, in order to connect above-mentioned three flexible printed wiring boards 102,104,106, traditional signal transmission structure must be provided with the connectivity port of three correspondences at the said system end, not only takes up room thus and improves the complexity of assembling, increases manufacturing cost simultaneously.
Summary of the invention
The object of the present invention is to provide a kind of liquid crystal display signal transmitting device, in order to connect a liquid crystal display device module and a system, it comprises one first flexible printed wiring board and one second flexible printed wiring board.First flexible printed wiring board is electrically connected liquid crystal display device module and said system, and second flexible printed wiring board is electrically connected liquid crystal display device module and above-mentioned first flexible printed wiring board.Wherein, (Anisotropic Conductive Film, mode ACF) engages first, second flexible printed wiring board by hot pin welding (hot bar soldering) or by anisotropic conductive film.
In a preferred embodiment, aforementioned first, second flexible circuit board is provided with corresponding pilot hole, so as to location alignment when engaging.In addition, second flexible printed wiring board is provided with a perforate, its contiguous first, second flexible printed wiring board joint.
In a preferred embodiment, foregoing liquid crystal monitor signal transmitting device also comprises one the 3rd flexible printed wiring board, is electrically connected the liquid crystal display device module and first flexible printed wiring board.
In addition, in the liquid crystal display signal transmitting device as described in the preceding, first flexible circuit board transmits a liquid crystal panel signal, and second flexible circuit board transmits a contact panel signal or a light signal.
For above-mentioned and other purpose of the present invention, feature and advantage can be become apparent, several concrete preferred embodiments cited below particularly, and conjunction with figs. elaborates.
Description of drawings
Fig. 1 is the synoptic diagram of flexible circuit board that shows a kind of LCD of prior art;
Fig. 2 is the synoptic diagram that shows liquid crystal display signal transmitting device of the present invention;
Fig. 3 a is the synoptic diagram that shows first embodiment among the present invention;
Fig. 3 b is the side view of directions X among the displayed map 3a;
Fig. 4 a is the synoptic diagram that shows second embodiment among the present invention;
Fig. 4 b is the side view of directions X among the displayed map 4a.
Description of reference numerals:
10～liquid crystal display device module
102～the first flexible printed wiring boards
1021～bonding land
104～the second flexible printed wiring boards
106～the 3rd flexible printed wiring boards
1020～connector
F～anisotropic conductive film
M～pilot hole
H1～perforate
H2～pilot hole
S～metal pad
Embodiment
First embodiment
At first see also Fig. 2, this figure is the synoptic diagram that shows first embodiment among the present invention.As shown in the figure, signal transmitting apparatus of the present invention mainly comprises first, second and the 3rd flexible printed wiring board 102,104,106, be electrically connected a liquid crystal display device module 10 respectively, wherein by connector 1020 is set on first flexible printed wiring board 102 to be electrically connected a system (not shown).In the present embodiment, can transmit a liquid crystal panel signal by aforementioned first flexible printed wiring board 102 between liquid crystal display device module 10 and aforementioned system, the second and the 3rd flexible printed wiring board 104,106 is then respectively in order to transmission contact panel signal and light signal.
As shown in Figure 2, the aforementioned second and the 3rd flexible printed wiring board 104,106 is connected (as position shown in A among Fig. 2 and the B) with first flexible printed wiring board 102, so can make contact panel signal and light signal import earlier to first flexible printed wiring board 102, be electrically connected with aforementioned system to realize the transmission of signal by connector 1020 again.Promptly, by the present invention can be between liquid crystal display device module 10 and said system transmission fluid crystal panel signal, contact panel signal and light signal simultaneously, owing to only need be connected with system by single connector 1020, therefore only single connecting interface need be set at this system end, not only can save the space effectively and can reduce cost simultaneously.
See also Fig. 3 a and 3b again, wherein Fig. 3 b is the side view of directions X among the displayed map 3a.In the present embodiment, first and second flexible printed wiring board 102,104 is provided with corresponding metal pad S (soldering pad) and is bonded with each other, the mode of wherein above-mentioned metal pad S by hot pin welding (hotbar soldering) makes wins and second flexible printed wiring board 102,104 is electrically connected, and the signal of second flexible printed wiring board 104 can import in first flexible printed wiring board 102 whereby.
Shown in Fig. 3 a, metal pad S side on second flexible printed wiring board 104 is provided with a plurality of parallel strip perforate H1, can avoid whereby in welding process because of the tin that overflows causes short circuit, yet perforate H1 also can be arranged on first flexible printed wiring board 102.In addition, definition has a bonding land 1021 on first flexible printed wiring board 102, metal pad S is positioned at above-mentioned bonding land 1021, wherein the edge of 1021 and second flexible printed wiring board 104 is provided with corresponding positioning hole M in addition in the bonding land, can see through the above-mentioned pilot hole M of alignment whereby and then reach location exactly when assembling.Yet except in order to connecting aforementioned first and second flexible printed wiring board 102,104, above-mentioned connected mode is also applicable to connecting the first and the 3rd flexible printed wiring board 102,106 (as position shown in the B among Fig. 2).
Second embodiment
Then see also Fig. 4 a and 4b, in the present embodiment, (Anisotropic Conductive Film ACF) engages by an anisotropic conductive film F between first and second flexible printed wiring boards 102,104.Shown in Fig. 4 b, be respectively equipped with corresponding metal pad S on first and second flexible printed wiring board 102,104, and, make the signal of second flexible printed wiring board 104 can import in first flexible printed wiring board 102 whereby by anisotropic conductive film F electrical connection.
Shown in Fig. 4 a, on first and second flexible printed wiring board 102,104, be respectively equipped with corresponding pilot hole H2, locate so as to reaching exactly by aiming at aforementioned pilot hole H2 during assembling.Yet except in order to connecting first and second flexible printed wiring board 102,104, above-mentioned connected mode is also applicable to connecting the aforementioned first and the 3rd flexible printed wiring board 102,106 (as position shown in the B among Fig. 2).
The present invention is by being connected to first flexible printed wiring board 102 with the second and the 3rd flexible printed wiring board 104,106, can make contact panel signal and light signal import in first flexible printed wiring board 102 earlier, then be electrically connected to a system by single connector 1020 again, can between liquid crystal display device module 10 and said system, transmit contact panel signal, light signal and liquid crystal panel signal thus.Wherein, can optionally take hot pin welding (hot barsoldering) or anisotropic conductive film to engage (ACF bonding) between each flexible printed wiring board, mode as for the location can be utilized pilot hole, and pilot hole perhaps is set, and the location is beneficial to the assembling joint to implement exactly.In sum, the invention provides a kind of liquid crystal display signal transmitting device, owing to only need use a connector to be connected with system, the simultaneity factor end also only need be provided with single connecting interface, and therefore can significantly save the space reduces assembly cost simultaneously.
Though the present invention with a plurality of preferred embodiments openly as above, yet be not in order to limit the present invention.Those of skill in the art under the condition that does not break away from the spirit and scope of the present invention, still can do some and change and retouching, so protection scope of the present invention should be as the criterion with the scope that appended claims was defined.
Claims (14)
1. liquid crystal display signal transmitting device, it connects a liquid crystal display device module and a system, comprising:
One first flexible printed wiring board, it is electrically connected described liquid crystal display device module and described system;
One second flexible printed wiring board, it is electrically connected described liquid crystal display device module and described first flexible printed wiring board, and wherein said first, second flexible printed wiring board engages by the mode of hot pin welding.
2. liquid crystal display signal transmitting device as claimed in claim 1 is respectively equipped with corresponding pilot hole on wherein said first, second flexible circuit board, described pilot hole alignment when described first, second flexible circuit board engages.
3. liquid crystal display signal transmitting device as claimed in claim 1 is respectively equipped with corresponding pilot hole on wherein said first, second flexible circuit board, described pilot hole alignment when described first, second flexible circuit board engages.
4. liquid crystal display signal transmitting device as claimed in claim 1, wherein said second flexible printed wiring board is provided with a perforate, its contiguous described first, second flexible printed wiring board joint.
5. liquid crystal display signal transmitting device as claimed in claim 1 wherein also comprises one the 3rd flexible printed wiring board, and it is electrically connected described liquid crystal display device module and described first flexible printed wiring board.
6. liquid crystal display signal transmitting device, it connects a liquid crystal display device module and a system, comprising:
One first flexible printed wiring board, it is electrically connected described liquid crystal display device module and described system;
One second flexible printed wiring board, it is electrically connected described liquid crystal display device module and described first flexible printed wiring board, and wherein said first, second flexible printed wiring board engages by anisotropic conductive film.
7. liquid crystal display signal transmitting device as claimed in claim 6 is respectively equipped with corresponding pilot hole on wherein said first, second flexible circuit board, described pilot hole alignment when described first, second flexible circuit board engages.
8. liquid crystal display signal transmitting device as claimed in claim 6 is respectively equipped with corresponding pilot hole on wherein said first, second flexible circuit board, described pilot hole alignment when described first, second flexible circuit board engages.
9. liquid crystal display signal transmitting device as claimed in claim 6, wherein said second flexible printed wiring board is provided with a perforate, its contiguous described first, second flexible printed wiring board joint.
10. liquid crystal display signal transmitting device as claimed in claim 6 wherein also comprises one the 3rd flexible printed wiring board, and it is electrically connected described liquid crystal display device module and described first flexible printed wiring board.
11. a liquid crystal display signal transmitting device, it connects a liquid crystal display device module and a system, comprising:
One first flexible printed wiring board, it is electrically connected described liquid crystal display device module and described system;
One second flexible printed wiring board, it is electrically connected described liquid crystal display device module and described first flexible printed wiring board, be respectively equipped with corresponding pilot hole on wherein said first, second flexible circuit board, described pilot hole aligns mutually when described first, second flexible circuit board engages.
12. liquid crystal display signal transmitting device as claimed in claim 11 is respectively equipped with corresponding pilot hole on wherein said first, second flexible circuit board, described pilot hole aligns mutually when described first, second flexible circuit board engages.
13. as claim 11 described liquid crystal display signal transmitting device, wherein said second flexible printed wiring board is provided with a perforate, its contiguous described first, second flexible printed wiring board joint.
14. liquid crystal display signal transmitting device as claimed in claim 11 wherein also comprises one the 3rd flexible printed wiring board, it is electrically connected described liquid crystal display device module and described first flexible printed wiring board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100420682A CN100336098C (en) | 2004-04-29 | 2004-04-29 | Signal transmission device for liquid crystal display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100420682A CN100336098C (en) | 2004-04-29 | 2004-04-29 | Signal transmission device for liquid crystal display |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1570717A true CN1570717A (en) | 2005-01-26 |
| CN100336098C CN100336098C (en) | 2007-09-05 |
Family
ID=34481856
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100420682A Active CN100336098C (en) | 2004-04-29 | 2004-04-29 | Signal transmission device for liquid crystal display |
Country Status (1)
| Country | Link |
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| CN (1) | CN100336098C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102000933A (en) * | 2010-09-30 | 2011-04-06 | 无锡博一光电科技有限公司 | Liquid crystal display (LCD) welding fixture and welding method thereof |
| WO2019080210A1 (en) * | 2017-10-26 | 2019-05-02 | 惠科股份有限公司 | Signal transmission apparatus and display apparatus |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10123489A (en) * | 1996-08-30 | 1998-05-15 | Japan Aviation Electron Ind Ltd | Packaging structure of liquid crystal display element |
| JPH10170889A (en) * | 1996-12-13 | 1998-06-26 | Hitachi Ltd | Liquid crystal display device |
| JPH10271048A (en) * | 1997-03-27 | 1998-10-09 | Hitachi Ltd | Balanced transmission line |
| JPH11281994A (en) * | 1998-03-31 | 1999-10-15 | Advanced Display Inc | Liquid crystal display |
| JP3025256B1 (en) * | 1999-02-24 | 2000-03-27 | 松下電器産業株式会社 | Mounting method of TCP film on display panel |
| DE60027342T2 (en) * | 1999-03-26 | 2007-01-04 | Seiko Epson Corp. | Flexible printed circuit board, electro-optical device, and electronic device |
| KR100450982B1 (en) * | 2000-05-31 | 2004-10-02 | 엘지.필립스 엘시디 주식회사 | method for fabricating liquid crystal display device |
| KR100706742B1 (en) * | 2000-07-18 | 2007-04-11 | 삼성전자주식회사 | Flat panel display apparatus |
| JP2003168523A (en) * | 2001-11-30 | 2003-06-13 | G Tekku:Kk | Connector for flexible printed wiring board |
| JP4092132B2 (en) * | 2002-04-26 | 2008-05-28 | Ｎｅｃエレクトロニクス株式会社 | Display device |
-
2004
- 2004-04-29 CN CNB2004100420682A patent/CN100336098C/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102000933A (en) * | 2010-09-30 | 2011-04-06 | 无锡博一光电科技有限公司 | Liquid crystal display (LCD) welding fixture and welding method thereof |
| WO2019080210A1 (en) * | 2017-10-26 | 2019-05-02 | 惠科股份有限公司 | Signal transmission apparatus and display apparatus |
| US11474572B2 (en) | 2017-10-26 | 2022-10-18 | HKC Corporation Limited | Signal transmission apparatus and display apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100336098C (en) | 2007-09-05 |
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