CN202095174U - Flexible printed circuit for LCM (liquid crystal module) - Google Patents
Flexible printed circuit for LCM (liquid crystal module) Download PDFInfo
- Publication number
- CN202095174U CN202095174U CN2011201652220U CN201120165222U CN202095174U CN 202095174 U CN202095174 U CN 202095174U CN 2011201652220 U CN2011201652220 U CN 2011201652220U CN 201120165222 U CN201120165222 U CN 201120165222U CN 202095174 U CN202095174 U CN 202095174U
- Authority
- CN
- China
- Prior art keywords
- lcm
- circuit board
- flexible circuit
- kink
- diaphragm
- 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 - Lifetime
Links
Images
Landscapes
- Structure Of Printed Boards (AREA)
Abstract
The utility model discloses a flexible printed circuit for an LCM (liquid crystal module), which comprises a signal input terminal part, a signal processing part, a driving signal output terminal part and a bending part, wherein the bending part comprises a base board and conductor layers arranged at the two sides of the base board; a reinforcement board of the signal input terminal part is arranged on the base board; a protective film on the signal processing part extends to the bottom of the reinforcement board; and the reinforcement board is arranged on the protective film. In the flexible printed circuit, the protective film extends to the bottom of the reinforcement board, so that the area at one side where the reinforcement board is arranged and close to the reinforcement board covers the protective film; and the double-protection film is designed to disperse the stress distribution at a bending area so as to be used for improving the strength of the FPC (flexible printed circuit). In addition, the bending area still adopts the design of the single conductor layer, so as not to affect the effective bending of the bending part. Compared with the prior art, the flexible printed circuit can effectively balance the stress distribution of the bending part, and improve the fact that driving signals cannot be transmitted to the LCM due to the tear of the FPC when the FPC is bent.
Description
Technical field
The utility model relates to technical field of liquid crystal display, particularly a kind of LCM flexible circuit board.
Background technology
The displaying principle of LCD is for showing that at first input control signal is to FPC (Flexible Printed Circuit, flexible PCB), produce liquid crystal display module drive signal by the electronic circuit on the FPC then, pass to chip for driving by circuit then, normally show thereby drive LCD.
As shown in Figure 1, be used for the FPC of LCM (Liquid Crystal Module, LCD MODULE), mainly constitute by input signal terminal portion 4, signal processing part 2, drive signal output terminal part 1 and kink 3 etc.Input signal terminal portion 4 mainly is made of some gold-plated PAD (pad) side by side, wherein includes the PAD of signal and the Dummy pad of no signal (pad of no signal definition).Signal processing part 2 is used for handling input signal, generates the drive signal that display shows usefulness, and 1 of drive signal output terminal part exports drive signal to display screen side.
As shown in Figure 2, be the longitudinal section cutaway view of FPC shown in Fig. 2.FPC is generally double-decker; the conducting of signal is undertaken by conductor layer 13; conductor layer 13 is bonded in the both sides of substrate 11 by glue-line 12; covered layer protecting film 15 above the conductor layer 13; be generally PI (Polyimide; polyimides) diaphragm is coated with glue-line 12 between conductor layer 13 and the diaphragm 15, is used for bonding conductor layer 13 and diaphragm 15.Stiffening plate 14 is used to strengthen the plug intensity of golden finger.
Current FPC commonly used design, kink is taked the design in individual layer district, and not only conductor is taked single layer designs, and diaphragm also can be taked single layer designs.In the time of actual LCM assembly, the problem that the FPC kink is torn easily can appear, and cause drive signal can't be passed to LCM, influenced the production yield of LCM.
Therefore, the stress distribution of balanced kink how, and be torn when improving the FPC bending and the drive signal that causes can't be passed to the phenomenon of LCM, be the technical problem that those skilled in the art need to be resolved hurrily.
The utility model content
In view of this, the purpose of this utility model is to provide a kind of LCM flexible circuit board, with the stress distribution of balanced kink, and improves the phenomenon that the drive signal that is torn when FPC bends and causes can't be passed to LCM.
For achieving the above object, the utility model provides following technical scheme:
A kind of LCM flexible circuit board; comprise input signal terminal portion, signal processing part, drive signal output terminal part and kink; described kink comprises substrate and places the conductor layer of described substrate both sides; the stiffening plate of described input signal terminal portion places on the described substrate; diaphragm on the described signal processing part extends to the bottom of described stiffening plate, and described stiffening plate places on the described diaphragm.
Preferably, with in the flexible circuit board, the described diaphragm that extends to described stiffening plate bottom is bonded on the described substrate by glue-line at above-mentioned LCM.
Preferably, with in the flexible circuit board, the pad of the no signal definition of described input signal terminal portion has the lead that extends to described kink at above-mentioned LCM.
Preferably, with in the flexible circuit board, the connecting portion of described kink and described stiffening plate is wavy structure at above-mentioned LCM.
Preferably, with in the flexible circuit board, the described diaphragm that is connected with described stiffening plate is wavy structure at above-mentioned LCM.
Preferably, with in the flexible circuit board, be wavy structure at above-mentioned LCM near the described diaphragm of described input signal terminal portion one end.
Preferably, with in the flexible circuit board, described conductor layer and described diaphragm are two-layer, and are covered with whole described kink at above-mentioned LCM.
Preferably, with in the flexible circuit board, two-layer described diaphragm is separately positioned on the outside of described two-layer described conductor layer, and two-layer described conductor layer is separated by described substrate at above-mentioned LCM.
Preferably, with in the flexible circuit board, the conductor layer of described bending part in described stiffening plate the same side is latticed at above-mentioned LCM.
From above-mentioned technical scheme as can be seen; the utility model LCM flexible circuit board; comprise input signal terminal portion, signal processing part, drive signal output terminal part and kink; wherein; kink comprises substrate, place the conductor layer of described substrate both sides and place diaphragm on the described conductor layer; described diaphragm extends to the bottom of the stiffening plate of described input signal terminal portion, and described stiffening plate places on the described diaphragm.
The utility model is by extending to diaphragm the bottom of the stiffening plate of input signal terminal portion; and stiffening plate placed on the diaphragm; promptly change the design of traditional individual layer conductor layer, single ply protective film, individual layer glue; take to increase layer protecting film; be about to the bottom that diaphragm extends to stiffening plate, the feasible side that stiffening plate is set, and the regional covered with protective film of close this stiffening plate; with the stress distribution that the design of double shielding film disperses to bend the district, be used for promoting FPC intensity.In addition, because the bending district still takes the design of individual layer conductor layer, thereby can not influence effective bending in kink zone.The utility model compared with prior art, stress distribution that can the efficient balance kink is torn when having improved the FPC bending and the drive signal that causes can't be passed to the phenomenon of LCM.
In a preferred version of the present utility model, the pad of the no signal definition of input signal terminal portion has the lead that extends to described kink, be that the input signal terminal portion that the utility model not only goes out LCM signal has the Pad lead-in wire of signal all to draw, and the lead-in wire of the Dummy Pad of no signal also drawn, and extend in the kink zone, thereby the stress distribution of disperseing Dummy Pad place, the further balanced stress distribution of kink is torn when having improved the FPC bending and the drive signal that causes can't be passed to the phenomenon of LCM.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the circuit layout plan of existing LCM with flexible circuit board;
Fig. 2 is the longitudinal section cutaway view of existing LCM with flexible circuit board;
The LCM that Fig. 3 provides for the utility model embodiment circuit layout plan of flexible circuit board;
The LCM that Fig. 4 provides for the utility model embodiment longitudinal section cutaway view of flexible circuit board;
The LCM that Fig. 5 provides for the utility model embodiment structural representation of flexible circuit board;
The LCM that Fig. 6 provides for another embodiment of the utility model structural representation of flexible circuit board.
Embodiment
The utility model discloses a kind of LCM flexible circuit board,, and improve the phenomenon that the drive signal that is torn when FPC bends and causes can't be passed to LCM with the stress distribution of balanced kink.
Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
See also Fig. 3 and Fig. 4, the LCM that Fig. 3 provides for the utility model embodiment circuit layout plan of flexible circuit board; The LCM that Fig. 4 provides for the utility model embodiment longitudinal section of flexible circuit board.
The LCM flexible circuit board that the utility model provides; comprise input signal terminal portion 4, signal processing part 2, drive signal output terminal part 1 and kink 3; kink 3 comprises substrate 11 and places the conductor layer 13 of substrate 11 1 sides; the stiffening plate 14 of input signal terminal portion 4 places on the substrate 11; wherein of the present utility model focusing on; diaphragm 15 on the signal processing part 2 extends to the bottom of stiffening plate 14; stiffening plate 14 places on the described diaphragm 15, and promptly the diaphragm 15 on the signal processing part 2 extends between stiffening plate 14 and the substrate 11.
It will be understood by those skilled in the art that; LCM is generally double-decker with flexible circuit board; the part that is signal processing part 2 is a double-decker, promptly is bonded with conductor layer 13 by glue-line 12 respectively in the both sides of substrate 11, and the skin of conductor layer 13 is bonded with diaphragm 15 by glue-line 12.Input signal terminal portion 4, drive signal output terminal part 1 and kink 3 are single layer structure, and are provided with stiffening plate 14 at the back side of input signal terminal portion 4, and the conductor layer 13 of front is exposed, so that can be connected with other equipment.Ability technical staff will be appreciated that common kink 3 back sides (side of stiffening plate 14 is set) need not to be provided with diaphragm, and the utility model extends to the diaphragm on the signal processing part 2 15 between stiffening plate 14 and the substrate 11.Preferably, the diaphragm 15 that extends to stiffening plate 14 bottoms is bonded on the substrate 11 by glue-line 12.
The utility model is by extending to diaphragm 15 bottom of the stiffening plate of input signal terminal portion; and stiffening plate placed on the diaphragm; promptly change the design of traditional individual layer conductor layer, single ply protective film, individual layer glue; take to increase layer protecting film; be about to the bottom that diaphragm extends to stiffening plate 14, the feasible side that stiffening plate 14 is set, and the regional covered with protective film of close this stiffening plate; with the stress distribution that the design of double shielding film disperses to bend the district, be used for promoting FPC intensity.In addition, because the bending district still takes the design of individual layer conductor layer, thereby can not influence effective bending in kink zone.The utility model compared with prior art, stress distribution that can the efficient balance kink is torn when having improved the FPC bending and the drive signal that causes can't be passed to the phenomenon of LCM.Reduce FPC and torn bad incidence, thereby effectively promoted LCM product yield.
As shown in Figure 3, the pad (Dummy pad) of the no signal of input signal terminal portion 4 definition has the lead that extends to kink 3.The input signal terminal portion that the utility model not only goes out LCM signal has the Pad lead-in wire of signal all to draw, and the lead-in wire of the Dummy Pad of no signal also drawn, and extend in the kink zone, thereby the stress distribution of disperseing Dummy Pad place, the further balanced stress distribution of kink is torn when having improved the FPC bending and the drive signal that causes can't be passed to the phenomenon of LCM.Further reduce FPC and torn bad incidence, thereby effectively promoted LCM product yield.
See also Fig. 6, the LCM that Fig. 6 provides for another embodiment of the utility model structural representation of flexible circuit board.
See also Fig. 5, the LCM that Fig. 5 provides for the utility model embodiment structural representation of flexible circuit board.
Each embodiment adopts the mode of going forward one by one to describe in this specification, and what each embodiment stressed all is and the difference of other embodiment that identical similar part is mutually referring to getting final product between each embodiment.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the utility model.Multiple modification to these embodiment will be conspicuous concerning those skilled in the art, and defined herein General Principle can realize under the situation that does not break away from spirit or scope of the present utility model in other embodiments.Therefore, the utility model will can not be restricted to these embodiment shown in this article, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (9)
1. LCM flexible circuit board; comprise input signal terminal portion (4), signal processing part (2), drive signal output terminal part (1) and kink (3); described kink (3) comprises substrate (11) and places the conductor layer (13) of described substrate (11) one sides; the stiffening plate (14) of described input signal terminal portion (4) places on the described substrate (11); it is characterized in that; diaphragm (15) on the described signal processing part (2) extends to the bottom of described stiffening plate (14), and described stiffening plate (14) places on the described diaphragm (15).
2. LCM flexible circuit board as claimed in claim 1 is characterized in that, the described diaphragm (15) that extends to described stiffening plate (14) bottom is bonded on the described substrate (11) by glue-line (12).
3. LCM flexible circuit board as claimed in claim 1 is characterized in that, the pad of the no signal definition of described input signal terminal portion (4) has the lead that extends to described kink (3).
4. as each described LCM flexible circuit board of claim 1-3, it is characterized in that described kink (3) is wavy structure with the connecting portion of described stiffening plate (14).
5. LCM flexible circuit board as claimed in claim 4 is characterized in that, the described diaphragm (15) that is connected with described stiffening plate (14) is wavy structure.
6. as each described LCM flexible circuit board of claim 1-3, it is characterized in that, is wavy structure near the described diaphragm (15) of described input signal terminal portion (4) one ends.
7. as each described LCM flexible circuit board of claim 1-3, it is characterized in that described conductor layer (13) and described diaphragm (15) are two-layer, and be covered with whole described kink (3).
8. LCM flexible circuit board as claimed in claim 7 is characterized in that, two-layer described diaphragm (15) is separately positioned on the outside of described two-layer described conductor layer (13), and two-layer described conductor layer (13) is separated by described substrate (11).
9. LCM flexible circuit board as claimed in claim 7 is characterized in that, described kink (3) is positioned at the conductor layer (13) of described stiffening plate (14) the same side for latticed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201652220U CN202095174U (en) | 2011-05-23 | 2011-05-23 | Flexible printed circuit for LCM (liquid crystal module) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201652220U CN202095174U (en) | 2011-05-23 | 2011-05-23 | Flexible printed circuit for LCM (liquid crystal module) |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202095174U true CN202095174U (en) | 2011-12-28 |
Family
ID=45370211
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201652220U Expired - Lifetime CN202095174U (en) | 2011-05-23 | 2011-05-23 | Flexible printed circuit for LCM (liquid crystal module) |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202095174U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103260342A (en) * | 2013-05-04 | 2013-08-21 | 鑫茂电子（昆山）有限公司 | Flexible printed circuit (FPC) double-layer board |
| CN103488338A (en) * | 2013-08-30 | 2014-01-01 | 江西合力泰科技股份有限公司 | Method for improving bonding of touch screen |
| CN103533758A (en) * | 2013-10-21 | 2014-01-22 | 无锡博一光电科技有限公司 | Manufacturing method for flexible circuit board |
| CN112333913A (en) * | 2020-10-22 | 2021-02-05 | Tcl通讯（宁波）有限公司 | Flexible circuit board structure |
| CN113597090A (en) * | 2021-07-28 | 2021-11-02 | 京东方科技集团股份有限公司 | Flexible circuit board, display panel and display device |
-
2011
- 2011-05-23 CN CN2011201652220U patent/CN202095174U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103260342A (en) * | 2013-05-04 | 2013-08-21 | 鑫茂电子（昆山）有限公司 | Flexible printed circuit (FPC) double-layer board |
| CN103488338A (en) * | 2013-08-30 | 2014-01-01 | 江西合力泰科技股份有限公司 | Method for improving bonding of touch screen |
| CN103533758A (en) * | 2013-10-21 | 2014-01-22 | 无锡博一光电科技有限公司 | Manufacturing method for flexible circuit board |
| CN103533758B (en) * | 2013-10-21 | 2017-06-13 | 无锡博一光电科技有限公司 | The preparation method of FPC |
| CN112333913A (en) * | 2020-10-22 | 2021-02-05 | Tcl通讯（宁波）有限公司 | Flexible circuit board structure |
| CN113597090A (en) * | 2021-07-28 | 2021-11-02 | 京东方科技集团股份有限公司 | Flexible circuit board, display panel and display device |
| CN113597090B (en) * | 2021-07-28 | 2024-03-26 | 京东方科技集团股份有限公司 | Flexible circuit board, display panel and display device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202095174U (en) | Flexible printed circuit for LCM (liquid crystal module) | |
| US11257891B2 (en) | Display panel | |
| US20210333845A1 (en) | Display panel | |
| CN209804149U (en) | Drive chip and display panel | |
| CN206074953U (en) | LCD display part with U-shaped FPC circuit boards | |
| US20220045024A1 (en) | Driving chip and display panel | |
| CN110825268A (en) | Touch module, touch display device and electronic equipment | |
| CN111796463A (en) | Display module | |
| WO2022067937A1 (en) | Display device | |
| US20100186995A1 (en) | Connecting device for cables and jumper wires | |
| CN202009534U (en) | Reinforced structure for preventing break of flexible circuit board | |
| CN201689235U (en) | Connecting structure of FPC and LCD glass substrate | |
| CN112180643B (en) | Array substrate, display panel and display device | |
| CN212694226U (en) | Driving display chip and display module | |
| KR20220033586A (en) | Flexible printed circuit board and display device including the same | |
| US8916779B2 (en) | Tape substrate with chip on film structure for liquid crystal display panel | |
| CN201160340Y (en) | Flexible printed circuit board | |
| CN207833169U (en) | A kind of LCM liquid crystal display die sets with high reliability FPC bending structures | |
| CN104955270A (en) | Flexible printed circuit (FPC) board | |
| CN203606592U (en) | Liquid crystal display module and liquid crystal display device | |
| CN216253360U (en) | Flexible circuit board with uniform binding stress | |
| CN205648185U (en) | Layer -stepping multilayer soft or hard combines printing board | |
| CN205430782U (en) | Connection FPC and circuit substrate that circuit substrate was used | |
| WO2019000482A1 (en) | Easy-to-test cog panel | |
| TWM497811U (en) | Panel structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111228 |
|
| CX01 | Expiry of patent term |