CN101546053B - Mounting structure, electro-optical device, and electronic apparatus - Google Patents
Mounting structure, electro-optical device, and electronic apparatus Download PDFInfo
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- CN101546053B CN101546053B CN2009101268740A CN200910126874A CN101546053B CN 101546053 B CN101546053 B CN 101546053B CN 2009101268740 A CN2009101268740 A CN 2009101268740A CN 200910126874 A CN200910126874 A CN 200910126874A CN 101546053 B CN101546053 B CN 101546053B
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Abstract
The invention relates to a mounting structure, an electro-optical device, and an electronic apparatus. Substrates and a flexible printed circuit (FPC) of the mounting structure are electrically connected by terminals. The substrate terminal is taken as a first terminal, has at least three terminal parts configured in interval, at least one terminal part located inside of these terminal parts is electrically connected to the terminal of the FPC. Electric potential is supplied to the first terminal of the substrate higher than that supplied to the terminal at both sides of the substrate. Since the equivalent potential is supplied to at least three terminal parts of the first terminal, the at least one terminal part located inside of these terminal parts a potential difference of about 0 V from terminal part at the outer terminal part adjacent to other terminals. As a result, the electrochemical reaction is not liable to take place, the terminal part at the outer terminal part adjacent to other terminals becomes a barrier, which can prevent the partial corrosion and yarn cutting of at least one terminal located inside.
Description
Technical field
The present invention relates to a kind of terminal structure that can perform well in the assembling structure in the electro-optical device.
Background technology
In the past, the various electro-optical devices of liquid crystal indicator, organic electroluminescence display device and method of manufacturing same, plasm display device and field-emission display device etc. had been well-known.
Liquid crystal indicator as this electro-optical device one example possesses: display panels, and holding liquid crystal forms between a pair of substrate; With the FPC that is connected in display panels (Flexible PrintedCircuit, flexible print circuit).This liquid crystal indicator possesses assembling structure, through each terminal substrate and the FPC that constitutes display panels is electrically connected.In this assembling structure; Though each terminal is provided the signal of predetermined potential through each wiring; But if the potential difference (PD) between adjacent terminal is bigger; Then exist the higher terminal of current potential wherein because of following electrochemical reaction the possibility of burn into broken string to take place, this electrochemical reaction is to produce because of the foreign ion that comprises in the assembling structure, the moisture and the electric field that get into from the outside.Therefore, in order in this assembling structure, to prevent the burn into broken string of terminal or wiring, effectively eliminate the factor that causes electrochemical reaction as far as possible.
But, under hot and humid environment, use sometimes because comprise the liquid crystal indicator of assembling structure, so be difficult to from assembling structure, remove fully moisture.In addition, in the raw material that constitutes assembling structure, originally just contain foreign ion, be difficult to remove this foreign ion fully from assembling structure.Therefore; In assembling structure,, reduce the electric field level that produces between its terminal as long as drawing back the big adjacent terminal pitch of potential difference (PD) leaves as far as possible; Just can prevent the burn into broken string that causes because of electrochemical reaction to the higher terminal of current potential among its two terminals.
Relevant this problem has been recorded and narrated a kind of flexible distributing board in patent documentation 1, this flexible distributing board does not have signal to supply with the situation that wiring is corroded and broken because of electrochemical reaction, and reliability is high.With regard to this flexible distributing board, within adjacent signal is supplied with between wiring,, be provided with the wire dummy electrodes that non-signal is supplied with usefulness supplying with between voltage of signals the difference big wiring of power supply class and the wiring of reference potential class.Whereby; Owing to can between power supply class wiring and the wiring of reference potential class, directly not produce bigger electric field, thus do not have yet the wiring of power supply class and reference potential class connect up because of and flexible distributing board in residual impurity between electrochemical reaction corrode situation about breaking.
In addition, relevant the problems referred to above in patent documentation 2, have been recorded and narrated a kind of circuit board, have difference though this circuit board puts on the voltage of adjacent wiring respectively, and wiring can prevent because electrocorrosion effect and burn into breaks.On this circuit board, many wirings by the high order of the voltage potential that applies (perhaps low order) on substrate and row arrangement.In view of the above, because adjacent wiring potential difference (PD) becomes smaller, thereby the higher wiring of current potential is difficult for the electrocorrosion effect and the burn into broken string.In addition, on this circuit board, because ground voltage is bigger with the potential difference (PD) between the wiring with wiring and grid cut-off level (gate offlevel), so the high ground voltage of current potential uses wiring to receive the possibility of electrocorrosion effect among having its two wirings.Therefore, on this circuit board, between its two wirings, Virtual Wiring is set,, higher current potential among these two wirings is provided, make these two wirings not receive the electrocorrosion effect this Virtual Wiring.
Patent documentation 2 TOHKEMYs are put down the 11-142871 communique
As stated, in assembling structure, prevent terminal that causes because of electrochemical reaction or the means that connect up the burn into broken string, effectively, when potential difference (PD) is big between adjacent terminal, strengthen the distance between those terminals as seeking.But, even if in fact between the big adjacent terminal of potential difference (PD), strengthen they apart from the time, the burn into broken string also can take place on the terminal of current potential higher (particularly, the current potential of side of the positive electrode is higher) therein.Thereby, only adopt this method, can't prevent the terminal or the wiring burn into broken string that cause because of electrochemical reaction fully.
In addition; In patent documentation 1 and 2, in order to prevent between adjacent wirings the terminal burn into broken string that current potential is higher; Need be to flexible distributing board or circuit board; Independent dummy electrodes is set separately, thus have and other electronic units (for example drive IC) between relation aspect the layout of wiring become complicated, the perhaps problem of mutually deserved increase of cost of products and so on.
Summary of the invention
The present invention makes in view of the foregoing problems; Its problem does; Providing a kind of can not make distributing become complicated and not cause preventing assembling structure, the electro-optical device that uses this assembling structure and the electronic equipment of terminal burn into broken string under the situation of cost of products increase.
[application examples 1] is characterized by according to 1 scheme of the present invention, and assembling structure possesses: the 1st substrate and the 2nd substrate; The 1st terminal is formed at above-mentioned the 1st substrate, has a plurality of terminal parts of the arranged spaced of being spaced from each other; Other terminal is formed at above-mentioned the 1st substrate, and is adjacent with above-mentioned the 1st terminal; The 2nd terminal is formed at above-mentioned the 2nd substrate, is electrically connected with at least 1 above-mentioned terminal part of the above-mentioned terminal part of above-mentioned the 1st terminal; To above-mentioned the 1st terminal, supply with the current potential that is supplied in above-mentioned other terminal and compare higher current potential.
For example under hot and humid environment, use this assembling structure, and, supply with and compare higher current potential with adjacent other terminal to the 1st terminal.At this moment, between the 1st terminal other terminal adjacent, on the current potential of supplying with, there is potential difference (PD) with it.Wherein supply with the terminal part with other terminal position adjacent that is disposed within the terminal part of the 1st terminal of comparing higher current potential with other terminal; The possibility that burn into breaks takes place because of following electrochemical reaction in existence, and this electrochemical reaction is to take place because of the interaction between moisture, foreign ion and the electric field.
But; Because the current potential of same potential is supplied with in a plurality of terminal parts of the 1st terminal, thus among a plurality of terminal parts of the 1st terminal not and the terminal part of other terminal disposed adjacent and be disposed at and the terminal part of other terminal position adjacent between potential difference (PD) be roughly 0V.Its result does, above-mentioned electrochemical reaction becomes and is difficult for taking place, and the terminal part that is disposed at other terminal position adjacent becomes barrier, can prevent not with the terminal part of other terminal disposed adjacent the burn into broken string to take place.
Its result is to improve the reliability of the electrical connection between the 1st terminal and the 2nd terminal.In addition, according to this structure, compare with the structure of above-mentioned patent documentation 1 and 2, it is complicated that the layout of wiring can not become, and the cost that does not also cause the layout because of wiring to cause in addition increases.
[application examples 2] is in mode of assembling structure of application examples 1; Preferably; Above-mentioned the 2nd terminal of above-mentioned the 2nd substrate has a plurality of terminal parts of the arranged spaced of being spaced from each other, and the above-mentioned terminal part of above-mentioned the 1st terminal is electrically connected with the terminal part of above-mentioned the 2nd terminal.
[application examples 3] in addition, and be in mode of assembling structure of application examples 1, preferred; Not with the terminal part of the above-mentioned other terminal disposed adjacent of above-mentioned the 1st terminal; Possess metal film and conducting film, this conducting film is disposed at the position that covers above-mentioned metal film, and has corrosion resistance.
Assembling structure according to this mode; Since among a plurality of terminal parts of the 1st terminal not with the terminal part of other terminal disposed adjacent; Conducting film by having corrosion resistance covers, thereby can further prevent not with the terminal part of other terminal disposed adjacent the burn into broken string to take place.
[application examples 4] is in mode of assembling structure of application examples 1; Preferably; The above-mentioned terminal part of above-mentioned the 1st terminal comprises 3 terminal parts at least; Above-mentioned the 2nd terminal comprises at least 3 terminal parts that are spaced from each other arranged spaced, and above-mentioned at least 3 terminal parts of above-mentioned the 1st terminal are electrically connected with above-mentioned 3 terminal parts of above-mentioned the 2nd terminal at least.
For example under hot and humid environment, use this assembling structure, and, supply with and compare higher current potential with adjacent other terminal to the 1st terminal.At this moment, between the 1st terminal other terminal adjacent, on the current potential of supplying with, there is potential difference (PD) with it.Wherein supply with among at least 3 terminal parts of the 1st terminal of comparing higher current potential with other terminal; Adjacent with other terminal be positioned at outermost terminal part; The possibility that burn into breaks takes place because of following electrochemical reaction in existence, and this electrochemical reaction is to take place because of the interaction between moisture, foreign ion and the electric field.
But; Because at least 3 terminal parts of the 1st terminal are supplied with the current potential of same potential; So among at least 3 terminal parts of the 1st terminal at least 1 is positioned at inboard terminal part, and and the other adjacent potential difference (PD) between outermost terminal part of terminal be roughly 0V.Its result does, above-mentioned electrochemical reaction becomes and is difficult for taking place, and the be positioned at outermost terminal part adjacent with other terminal becomes barrier, can prevent that above-mentioned at least 1 is positioned at inboard terminal part the burn into broken string takes place.
Its result is to improve the reliability of the electrical connection between the 1st terminal and the 2nd terminal.In addition, according to this structure, compare with above-mentioned patent documentation 1 and 2 structure, it is complicated that the layout of wiring can not become, and the cost that does not also cause the layout because of wiring to cause in addition increases.
[application examples 5] in mode of assembling structure of application examples 1, preferred, on above-mentioned the 1st substrate, above-mentioned other terminal only is formed at side's side of above-mentioned the 1st terminal.
[application examples 6] according to another aspect of the present invention, is characterized by, and assembling structure possesses: the 1st substrate and the 2nd substrate; The 1st terminal is formed at above-mentioned the 1st substrate, comprises metal film and conducting film, and this conducting film is disposed at the position that covers above-mentioned metal film and has corrosion resistance; The conducting film of island is formed at above-mentioned the 1st substrate, with above-mentioned the 1st terminal disposed adjacent and have corrosion resistance; Other terminal is formed at above-mentioned the 1st substrate, and is adjacent in an opposite side with above-mentioned the 1st terminal at the conducting film with respect to above-mentioned island; The 2nd terminal is formed at the 2nd substrate; With a plurality of terminal parts, be formed at above-mentioned the 2nd terminal, be electrically connected with the above-mentioned conducting film of above-mentioned the 1st terminal and the conducting film of above-mentioned island, be spaced from each other arranged spaced; To the above-mentioned conducting film of above-mentioned the 1st terminal and the conducting film of above-mentioned island, supply with the current potential that is supplied in above-mentioned other terminal and compare higher current potential.
For example under hot and humid environment, use this assembling structure; And to the 1st terminal and island conducting film with corrosion resistance; Supply is than the following other higher current potential of terminal, and this other terminal is adjacent with respect to the island conducting film with corrosion resistance in an opposite side with the 1st terminal.At this moment, at the 1st terminal and have between the island conducting film and following other terminal of corrosion resistance, on the current potential of supplying with, have potential difference (PD), this other terminal is adjacent with respect to the island conducting film with corrosion resistance in an opposite side with the 1st terminal.Wherein, Be supplied to the 1st terminal of the current potential higher than other terminal and have within the island conducting film of corrosion resistance, be disposed at and other terminal position adjacent and island conducting film with corrosion resistance; The possibility that burn into breaks takes place because of following electrochemical reaction in existence, and this electrochemical reaction is to take place because of the interaction between moisture, foreign ion and the electric field.
But because to the 1st terminal and and island conducting film with corrosion resistance adjacent with the 1st terminal, the current potential of supply same potential is so the 1st terminal and potential difference (PD) adjacent with the 1st terminal and that have between the island conducting film of corrosion resistance are roughly 0V.Its result does, above-mentioned electrochemical reaction becomes and is difficult for taking place, and the conducting film and the island conducting film adjacent with the 1st terminal and that have a corrosion resistance that constitute the 1st terminal become barrier, can prevent the metal film generation burn into broken string of the 1st terminal.
Its result is further to improve the reliability that makes the electrical connection between the 1st terminal and the 2nd terminal.In addition, according to this structure, compare with the structure of above-mentioned patent documentation 1 and 2, it is complicated that the layout of wiring can not become, and the cost that also can not cause the layout because of wiring to cause in addition increases.
[application examples 7] in addition, and be preferred, and as the assembling structure of application examples 6, on above-mentioned the 1st substrate, above-mentioned other terminal only is formed on side's side of above-mentioned island conducting film.
[application examples 8] is characterized by according to other schemes of the present invention, as the structure of electro-optical device, possesses above-mentioned application examples 1 or application examples 6 described assembling structures.In view of the above, obtain to possess the electro-optical device of the high assembling structure of reliability of electrical connection.
[application examples 9] in addition, and be preferred as above-mentioned electro-optical device in optimal way, and above-mentioned the 1st substrate is the side's among the above-mentioned a pair of substrate that forms of clamping electro-optical substance a substrate, and above-mentioned the 2nd substrate is a flexible printed circuit board.
[application examples 10] is characterized by according to other schemes of the present invention, as the structure of electronic equipment, possesses above-mentioned electro-optical device as display part.
Description of drawings
Fig. 1 is from observing the vertical view of the related liquid-crystal apparatus of being seen the 1st embodiment of side.
Fig. 2 is the liquid-crystal apparatus major part sectional view along the transversal A-A ' of Fig. 1.
Fig. 3 is related assembling structure major part vertical view of the 1st embodiment and major part sectional view.
Fig. 4 is related assembling structure major part vertical view of the 2nd embodiment and major part sectional view.
Fig. 5 is related assembling structure major part vertical view of the 3rd embodiment and major part sectional view.
Fig. 6 is related assembling structure major part vertical view of the 4th embodiment and major part sectional view.
Fig. 7 is related assembling structure major part vertical view of the 5th embodiment and major part sectional view.
Fig. 8 is related assembling structure major part vertical view of the 6th embodiment and major part sectional view.
Fig. 9 is the electronic equipment oblique view that possesses the related liquid-crystal apparatus of this embodiment.
Symbol description
1 ... Substrate 1h ... Installation region 1ha ... Installation region face 6,6a, 9,9a ... Wiring 7,7x ... FPC 8 ... Basalis 10 ... Overlayer 22 ... Protective seam 22a ... Opening 50 ... Display panels 61,91 ... Main line 62,62x, 62y, 92,92x ... Terminal 62a, 62b, 62c, 62k, 92a, 92b, 92c ... Terminal part 80,81 ... Conducting film 100,1000 ... Liquid-crystal apparatus.
Embodiment
Below, with reference to accompanying drawing, describe for the embodiment of the best.
[the 1st embodiment]
(structure of liquid-crystal apparatus)
Below, with reference to Fig. 1 and Fig. 2, describe for liquid-crystal apparatus 100 structures that possess the related assembling structure of this embodiment 70.Also have, the implication of relevant assembling structure 70 will be described below.
Fig. 1 is the vertical view of expression as liquid-crystal apparatus 100 schematic configuration of an example of the related electro-optical device of the 1st embodiment.Fig. 2 is the major part sectional view of expression along liquid-crystal apparatus 100 structures of the transversal A-A ' of Fig. 1.Also have, in Fig. 2, the so-called side of observing is meant the upside in the accompanying drawing, and by a side of observer's visual identity display image.
The liquid-crystal apparatus 100 that the 1st embodiment is related mainly possesses as the display panels 50 of electrooptic panel one example with as the FPC (Flexible Printed Circuit, flexible print circuit) 7 of circuit board one example.Also have, in this embodiment, display panels 50 is not defined as specific structure, and can adopt well-known various structure.
On the face of substrate 1 liquid crystal layer 4 sides, be formed with many signal line 11, multi-strip scanning line 12, as a plurality of TFT (Thin Film Transistor, thin film transistor (TFT)) element 13 of an example of on-off element and a plurality of pixel electrode G etc.In addition, also on the inner face of display panels 50 liquid crystal layers 4 sides, for example numerous structure important documents such as black matrix", color filter and other electrodes form rectangular (lattice-like) or banded (wire), but in Fig. 1 and Fig. 2, have omitted their diagram.
The nesa coating of each pixel electrode G employing ITO (Indium Tin Oxide, indium tin oxide) etc. forms, and is configured to rectangular (ranks shape) in seal 3 inboards of frame shape.It is to be used for effective viewing area (image displaying part) V of images such as display text, figure that this pixel electrode G is configured to zone after rectangular.In addition, substrate 1 have stretch out from an end 2e side direction of subtend substrate 2 outside stretch out zone (installation region) 1h.The face of subtend substrate 2 sides of installation region 1h (below; Being called " installation region face ") 1ha is last; Install or form the drive IC (Integrated Circuit, integrated circuit) 5 that is used for driving liquid crystal, the electronic unit that comprises FPC7 and many outside connections with wiring 6.
Each is outside to connect with wiring 6 and is formed by the metal film that aluminium etc. has electric conductivity.Each outside connection with wiring 6 possesses main line 61 and the terminal 62,63 that is arranged at main line 61 both sides.Each is outside to connect that the end 1e of 1h is extended to each input terminal 51 of drive IC 5 always and overlooks position overlapped from the installation region with wiring 6.And, each is outside connect terminal 62 with wiring 6 be electrically connected on after state each terminal 92 that the terminal 7e side of FPC7 is provided with, and each outside each input terminal 51 that is electrically connected on drive IC 5 with the terminal 63 of wiring 6 that connects.
In addition; On the installation region face 1ha of substrate 1; Zone zone except the input terminal 51 of drive IC 5 and lead-out terminal 52 and at least a portion in 6 the terminal 62,63 of connecting up is covered by the protective seam 22 (referring to Fig. 3 (b)) that for example adopts silicones etc. to constitute.
1h is extended to effective viewing area V to each signal wire 11 always from the installation region.The conducting particles 20a of one end of each signal wire 11 through containing in the anisotropy bonding agent 20 is electrically connected on the lead-out terminal 52 of drive IC 5, from drive IC 5 sides each signal wire 11 supplied with picture signals.
Each sweep trace 12 is 1h from the installation region, draws around to seal 3 and the effective zone between the V of viewing area, the direction that intersects of edge and signal wire 11 and extend up to effective viewing area V always again.The conducting particles 20a of one end of each sweep trace 12 through containing in the anisotropic conductive bonding agent 20 is electrically connected on the lead-out terminal 52 of drive IC 5, from drive IC 5 sides each sweep trace 12 supplied with sweep signal by predetermined timing.
Each TFT element 13 is to be used for pixel electrode G is carried out the element of switch control, is provided with corresponding to the crossover location of each signal wire 11 and each sweep trace 12.Though TFT element 13 has omitted diagram, have the source electrode that is electrically connected with each signal wire 11, the gate electrode that is electrically connected with each sweep trace 12 and the drain electrode that is electrically connected with pixel electrode G.
FPC7 has: have insulativity and flexible basalis (basilar memebrane) 8; Be formed at many wirings 9 on the face 8a of basalis 8; And overlayer (coverlay) 10, be formed on the face 8a of basalis 8, and state 9 the main line 91 of respectively connecting up after covering.Each connects up and 9 is formed by the metal film with electric conductivity, on the surface of this metal film, implements to utilize the electroplating processes of metal with corrosion resistance etc.Each connects up and 9 possesses main line 91 terminal 92 distolateral with being arranged at main line 91 1.Each connects up and 9 on a face 8a of basalis 8, separates proper spacing configuration.Overlayer 10 has insulativity by polyimide resin etc. and flexible material forms.
In the liquid-crystal apparatus with above structure 100; Through from after state electronic equipment and display panels 50 sides (for example supplied with various electric signal through FPC7; Each signal wire 11 is supplied with picture signal; In addition each sweep trace 12 is supplied with sweep signals), carry out the orientation control of liquid crystal molecule in the liquid crystal layer 4, the display image of hoping with visual identity by the observer.
(structure of assembling structure)
Below, with reference to Fig. 3, describe for the structure of the related assembling structure 70 of the 1st embodiment.
The major part amplification plan view of the corresponding assembling structure 70 of dashed region A1 of Fig. 3 (a) expression and Fig. 1.Fig. 3 (b) expression is along the major part sectional view of the assembling structure 70 of the transversal B-B ' of Fig. 3 (a).
The assembling structure 70 that the 1st embodiment is related; Be electrically connected substrate (the 1st substrates) 1 and FPC (the 2nd substrate) 7 constitutes through each terminal 62,92, its special feature is at least 1 terminal 62 and the electric connection structure of terminal 92 among a plurality of terminals 62,92.
Particularly, on the installation region face 1ha of the substrate 1 that constitutes assembling structure 70, separate proper spacing and be arranged with many outside connections with wiring 6.Here, be conceived to many outside terminals 62 that connect with one among the wiring 6 wiring 6a, can know that the terminal 62 of this wiring 6a has 3 terminal parts (62a, 62b, 62c), constitute as the 1st terminal.With the corresponding separately position of 3 terminal parts (62a, 62b, 62c) on be formed with the opening 22a of protective seam 22.In addition, 6 the terminal 62 of respectively connecting up that is disposed at terminal 62 both sides of wiring 6a is made up of 1 terminal part.But, being not limited thereto in the present invention, 6 the terminal 62 of respectively connecting up that is disposed at terminal 62 both sides of wiring 6a also can be the structure identical with the terminal of wiring 6a 62.
On the other hand, on a face 8a of the FPC7 basalis 8 that constitutes assembling structure 70, separate proper spacing and be arranged with many wirings 9.Here, be conceived to the terminal 92 of 1 the wiring 9a of many wirings among 9, can know that the terminal 92 of wiring 9a has 3 terminal parts (92a, 92b, 92c), constitute as the 2nd terminal.In addition, 9 the terminal 92 of respectively connecting up that is disposed at terminal 92 both sides of wiring 9a is made up of 1 terminal part.But, being not limited thereto in the present invention, 9 the terminal 92 of respectively connecting up that is disposed at terminal 92 both sides of wiring 9a also can be the structure identical with the terminal of wiring 9a 92.
Moreover 3 terminal parts (92a, 92b, 92c) of 3 terminal parts (62a, 62b, 62c) of wiring 6a and wiring 9a are electrically connected.Also have, 6 the terminal 62 of respectively connecting up that is disposed at terminal 62 both sides of wiring 6a also is electrically connected on 9 the terminal 92 of respectively connecting up of terminal 92 both sides that are disposed at wiring 9a.Under the superincumbent structure, the wiring 9a through FPC7 is to the wiring 6a of substrate 1, supplies with than current potential Vb, current potential Va that Vc is higher, and what this current potential Vb, Vc were supplied in the wiring 6a both sides that are positioned at substrate 1 respectively connects up 6.For example, the wiring 6a of substrate 1 becomes the power voltage line of supplying with the side of the positive electrode noble potential.
Below, the example for related assembling structure 70 action effects of the 1st embodiment that compares with comparative example describes.
At first, as comparative example, suppose the assembling structure of terminal 92 each free 1 terminal part formation of the terminal 62 of wiring 6a in assembling structure 70 and the 9a that connects up.And below, the undesirable condition that will worry when for example under hot and humid environment, using this assembling structure describes.
In comparative example, be made as under hot and humid environment, 6a supplies with high current potential (for example 6V) Va to wiring, and the current potential lower than wiring 6a (for example 0V etc. reference potential) Vb, Vc are supplied with in the wiring 6 of this wiring 6a both sides.At this moment; On the current potential of supplying with between the wiring 6 of wiring 6a and its both sides, there is bigger potential difference (PD); So the terminal 62 of the wiring 6a that wherein current potential is high may burn into broken string take place because of following electrochemical reaction, this electrochemical reaction is to take place because of the foreign ion that from the moisture of entering such as outside, assembling structure, contains is applied electric field.In addition, even if when the potential difference (PD) between terminal is not high, also exist because of other factor to increase or used the terminal that is easy to corrode that the possibility of burn into broken string takes place.Also have, because the terminal of wiring 9a 92 is formed by metal film, the electroplating processes that utilization has the gold etc. of corrosion resistance was implemented on the surface of its metal film, so be difficult for causing that for the terminal 92 of the 9a that connects up burn into breaks.Also have,, then have the cloth line resistance to become big trend if improved corrosion resistance.In view of the above, in comparative example, the undesirable condition that the reliability of electrical connection that assembling structure may take place descends and so on.
This point is in the related assembling structure 70 of the 1st embodiment; The terminal 62 of wiring 6a is made up of 3 terminal parts (62a, 62b, 62c); And the terminal 92 of wiring 9a is made up of 3 terminal parts (92a, 92b, 92c), and 3 terminal parts (62a, 62b, 62c) and 3 terminal parts (92a, 92b, 92c) are electrically connected.
According to this structure, can obtain following action effect.That is to say; Be made as and for example under hot and humid environment, use liquid-crystal apparatus 100 with this assembling structure 70; And 6a supplies with high current potential (for example 6V) Va to wiring, in addition the current potential lower than wiring 6a (for example 0V etc. reference potential) Vb, Vc is supplied with in the wiring 6 of wiring 6a both sides.At this moment; On the current potential of supplying with between the wiring 6 of wiring 6a and its both sides, have bigger potential difference (PD), thus 2 terminal parts (62a, 62c) within the terminal part of the wiring 6a that wherein current potential is high (62a, 62b, 62c) have the possibility that the burn into broken string takes place because of above-mentioned electrochemical reaction effect separately.
But; Because terminal part (62a, 62b, 62c) to wiring 6a; Supply with the current potential of same potential; So among the terminal part (62a, 62b, 62c) of wiring 6a, at least 1 potential difference (PD) that is positioned at the terminal part 62b of inboard wiring 6a and is positioned between the terminal part (62a, 62c) of the wiring 6a of its both sides is roughly 0V.Its result does, above-mentioned electrochemical reaction becomes and is difficult for taking place, and the terminal part (92a, 92c) of the terminal part (62a, 62c) of wiring 6a and wiring 9a becomes barrier, can prevent that at least 1 terminal part 62b that is positioned at inboard wiring 6a from the burn into broken string taking place.In addition, because the terminal 92 of wiring 9a is formed by metal film, the electroplating processes that utilization has the gold etc. of corrosion resistance was implemented on the surface of its metal film, so the terminal 92 of the 9a that connects up is difficult for causing that burn into breaks.
Its result is to improve the 1st terminal of assembling structure 70 and the reliability of the electrical connection between the 2nd terminal.In addition, according to this structure, compare with the structure of above-mentioned patent documentation 1 and 2, it is complicated that the layout of wiring 6,9 can not become, and also can not cause in addition increases because of the cost that 6,9 the layout of connecting up causes.
In addition, in above-mentioned comparative example,, effectively draw back terminal 62 and the distance between the terminal 62 of the wiring 6 of its both sides of wiring 6a for the terminal part burn into broken string of seeking to cause because of electrochemical reaction prevents as far as possible.But, because the physical dimension of substrate 1 and FPC7 receives the restriction of structure, thus draw back its distance aspect the limit is arranged.To this, in the 1st embodiment, owing to can utilize said structure to seek to prevent the terminal part 62b burn into broken string of 6a that connects up, thereby terminal 62 and the distance between each terminal 62 of the wiring 6 of its both sides that can dwindle wiring 6a.
Also have, in the 1st embodiment, the terminal 62 of wiring 6a has 3 terminal parts (62a, 62b, 62c) and constitutes, and the terminal 92 of wiring 9a has 3 terminal parts (92a, 92b, 92c) and constitutes.But, be not limited thereto, in this embodiment, the terminal 62 of the 6a that also can connect up has 3 terminal parts at least and constitutes, and the terminal 92 of wiring 9a has 3 terminal parts at least and constitutes.
For example, preferred, be arranged at the terminal part number on wiring 9a, each terminal 92,62 of 6a, according to determining with the relation that flows in the size of current among this wiring 9a, the 6a.
That is to say; Terminal part number on being arranged at wiring 9a, each terminal 92,62 of 6a is identical with above-mentioned the 1st embodiment when being 3 respectively; Existence loses the terminal part of the possibility of conducting function because of the burn into broken string; As stated, maximum 2 terminal parts (terminal part 92a, 92c and terminal part 62a, 62c) just.Here, then mutually deserved if the terminal part number that is arranged on wiring 9a, each terminal 92,62 of 6a increases, the area of wiring 9a, each terminal 92,62 of 6a increases, and its resistance value reduces.Thereby; Consider these problems; Even if can know that the current potential that is supplied in wiring 9a, 6a is higher; As long as the size of current that in its wiring 9a, 6a, flows is less; Then each terminal 92,62 of wiring 9a, 6a is supplied with the signal that is fit to, on this basis, among the terminal part (62a, 62c) of wiring 6a at least 1 is positioned among the terminal part 92a, 92c of inboard terminal part 62b in terminal part and wiring 9a at least 1 and is positioned at the inboard terminal part 92b in terminal part and can retains and get final product.But, when the size of current that in wiring 9a, 6a, flows is big, supply with on the basis that is fit to signal at each terminal 92,62 to wiring 9a, 6a, be arranged at terminal part number on wiring 9a, each terminal 92,62 of 6a sometimes and be 3 still not enough.Thereby, preferred for each terminal 92,62 to wiring 9a, 6a is supplied with the signal that is fit in this case, the terminal part that each terminal 92,62 of wiring 9a, 6a is provided with more than 4.Therefore, when the terminal part that like this each terminal 92,62 of wiring 9a, 6a is provided with more than 4, the possibility that at least 2 inboard above terminal parts receive the influence of burn into broken string that is positioned among the terminal part lowers.
[the 2nd embodiment]
Below, with reference to Fig. 4, describe for the structure of the related assembling structure 71 of this embodiment.
The major part amplification plan view of the assembling structure 71 that Fig. 4 (a) expression and corresponding the 2nd embodiment of Fig. 3 (a) are related.Fig. 4 (b) expression is along the assembling structure 71 major part sectional views of Fig. 4 (a) transversal C-C '.
When relatively the 1st embodiment and the 2nd embodiment, its both sides' difference does, is equivalent to the wiring 9a structure that connects up the terminal structure of 6a terminal 62 and on FPC, be electrically connected with wiring 6a on the substrate 1, and is then identical in addition.Thereby for the important document mark identical symbol identical with the 1st embodiment, its explanation is suitably omitted below.
Particularly; In the substrate 1 that constitutes assembling structure 71; Be conceived to many outside terminal 62x that connect with 1 among the wiring 6 wiring 6a; The terminal 62x that can know this wiring 6a constitutes as the 1st terminal, and the 1st terminal possesses: 3 terminal parts (62a, 62b, 62c) that are made up of metal film; Conducting film (for example, the nesa coating of ITO etc.) 80 with corrosion resistance.Conducting film 80 is configured in the position of capped end subdivision 62b, and is configured in and this terminal part 62b overlooks position overlapped.On the other hand; On the FPC7x that constitutes assembling structure 71; Be conceived to the terminal 92x of 1 the wiring 9a of many wirings among 9; The terminal 92x that can know this wiring 9a is as possessing the 2nd terminal of 1 terminal part and constituting, and its terminal part is formed by metal film, and the electroplating processes that utilization has the gold etc. of corrosion resistance was implemented on the surface of its metal film.Also have, when relatively FPC7x and FPC7, just the connect up terminal structure of 9a of its both sides' difference is then identical in addition.
And, covering the conducting film 80 of the terminal part 62b among 3 terminal parts (62a, 62b, 62c) of wiring 6a, the opening 22a through protective seam 22 is electrically connected with this terminal part 62b.In addition, the wiring 9a through FPC7x supplies with than current potential Vb, current potential Va that Vc is higher the terminal 62x of substrate 1 wiring 6a, and what this current potential Vb, Vc were supplied in the wiring 6a both sides that are positioned at substrate 1 respectively connects up 6.For example, the wiring 6a that has a terminal 62x becomes the power voltage line of the noble potential that is applied in side of the positive electrode.
The assembling structure 71 related according to the 2nd embodiment with top structure, the terminal part 62b among 3 terminal parts (62a, 62b, 62c) of wiring 6a is covered by the conducting film with corrosion resistance 80.Thereby; For example under hot and humid environment, use this assembling structure 71; And 6a supplies with high current potential (for example 6V) Va to wiring; When in addition the current potential lower than wiring 6a (for example 0V etc. reference potential) Vb, Vc are supplied with in the wiring 6 of these wiring 6a both sides; It is bigger poor on the current potential of supplying with between the wiring 6 of wiring 6a and its both sides, to exist, so there is the possibility that the burn into broken string takes place because of above-mentioned electrochemical reaction effect separately in 2 terminal parts (62a, 62c) of the wiring 6a that wherein current potential is high.
But; Because terminal part (62a, 62b, 62c) to wiring 6a; Supply with the current potential of same potential; So among the terminal part (62a, 62b, 62c) of wiring 6a, at least 1 potential difference (PD) that is positioned at the terminal part 62b of inboard wiring 6a and is positioned between the terminal part (62a, 62c) of the wiring 6a of its both sides is roughly 0V.Its result does; Above-mentioned electrochemical reaction becomes and is difficult for taking place; The terminal part 92x of the terminal part (62a, 62c) of wiring 6a, wiring 9a and the conducting film 80 with corrosion resistance become barrier, can prevent that at least 1 terminal part 62b that is positioned at inboard wiring 6a from the burn into broken string taking place.In addition, because the terminal 92x of wiring 9a is formed by metal film, the electroplating processes of gold with corrosion resistance etc. was implemented to utilize in the surface of its metal film, so be difficult for causing that for the terminal 92x of the 9a that connects up burn into breaks.
According to this embodiment; Compare with the 1st embodiment; The terminal part 62b of the 1st terminal is covered by the conducting film with corrosion resistance 80; So above-mentioned electrochemical reaction is difficult for taking place more on the terminal part 62b of wiring 6a, can prevent the burn into broken string to take place for the terminal 62x of wiring 6a.In addition, identical with the 1st embodiment, the terminal part that also can be provided with more than 4 to each terminal 92,62 of wiring 9a, 6a.In this case, can become at least 2 the inboard structures that above terminal part covers with the conducting film 80 with corrosion resistance that are positioned among the terminal part of wiring 6a.Owing to become this structure, the possibility that at least 2 above terminal parts that are positioned at the inboard receive the burn into broken string to be influenced further lowers.
Its result is to improve the 1st terminal of assembling structure 71 and the reliability of the electrical connection between the 2nd terminal.In addition, according to this structure, compare with the structure of above-mentioned patent documentation 1 and 2, it is complicated that the layout of wiring 6,9 can not become, and also can not cause in addition increases because of the cost that 6,9 the layout of connecting up causes.
[the 3rd embodiment]
Below, with reference to Fig. 5, describe for the structure of the related assembling structure 72 of this embodiment.
The major part amplification plan view of the assembling structure 72 that Fig. 5 (a) expression and corresponding the 3rd embodiment of Fig. 3 (a) are related.Fig. 5 (b) expression is along the major part sectional view of the assembling structure 72 of the transversal D-D ' of Fig. 5 (a).
When relatively the 3rd embodiment and the 1st embodiment, its both sides' difference does, is equivalent to the terminal structure of the wiring 6a terminal 62 of substrate 1, and is then identical in addition.Thereby for the important document mark identical symbol identical with the 1st embodiment, its explanation is suitably omitted below.
Particularly; On the substrate 1 that constitutes assembling structure 72; Be conceived to many outside terminal 62y that connect with 1 among the wiring 6 wiring 6a, can know that the terminal 62y of this wiring 6a constitutes as the 1st terminal, the 1st terminal possesses: 1 the terminal part 62k that is made up of metal film; With the conducting film with corrosion resistance (for example, the nesa coating of ITO etc.) 80.Conducting film 80 is configured in the position of capped end subdivision 62k, and is configured in this terminal part 62k and overlooks position overlapped.In addition, with regard to this assembling structure 72,, dispose a pair of island conducting film (the for example nesa coating of ITO etc.) 81 with corrosion resistance in the both sides of substrate 1 upper terminal 62y.On the other hand, the FPC7 structure that constitutes this assembling structure 72 is identical with the 1st embodiment, and the terminal 92 of many 1 the wiring 9as of wiring among 9 has 3 terminal parts (92a, 92b, 92c) as the 2nd terminal.And, cover the conducting film 80 of wiring 6a terminal 62y, through the opening 22a of protective seam 22,62k is electrically connected with the terminal part, and is electrically connected with the terminal part 92b of wiring 9a on the FPC7.In addition, pair of conductive film 81 separately with FPC7 on being electrically connected separately of terminal part 92a, 92c of wiring 9a.
In the superincumbent structure, the wiring 9a through FPC7 is to the terminal 62y of substrate 1 wiring 6a, supply with than current potential Vb, current potential Va that Vc is higher, this current potential Vb, Vc be supplied in be positioned at wiring 6a both sides respectively connect up 6.For example, the wiring 6a that has a terminal 62y becomes the power voltage line of the noble potential of supplying with side of the positive electrode.
The assembling structure 72 related according to the 3rd embodiment can obtain following action effect.
That is to say that in this assembling structure 72, the terminal 62y of wiring 6a possesses 1 terminal part 62k that is made up of metal film and the conducting film 80 that covers this terminal part 62k and have corrosion resistance.In addition, the terminal 62y both sides at wiring 6a dispose the pair of conductive film 81 with corrosion resistance.Thereby; For example under hot and humid environment, use liquid-crystal apparatus with this assembling structure 72; And wiring 6a, 9a are supplied with high current potential (for example 6V) Va; When in addition low current potential (for example 0V etc. reference potential) Vb, Vc are supplied with in the wiring 6 of these wiring 6a both sides; On the current potential of supplying with between the wiring 6 of wiring 6a and its both sides, have bigger potential difference (PD), thus be disposed at the terminal 62y both sides of wiring 6a and have corrosion resistance pair of conductive film 81 have the possibility that the burn into broken string takes place because of the electrochemical reaction effect separately.
But; Because to the terminal part 62y of wiring 6a and a pair of island conducting film 81 that is positioned at its both sides and has corrosion resistance; Supply with the current potential of same potential, thus the terminal part 62y of wiring 6a and in its both sides and the potential difference (PD) that has between a pair of island conducting film 81 of corrosion resistance be roughly 0V.Its result does; Above-mentioned electrochemical reaction becomes and is difficult for taking place; The conducting film 80 that constitutes wiring 6a terminal 62y and have a corrosion resistance becomes barrier with a pair of island conducting film 81 that is positioned at its both sides and has a corrosion resistance, and the burn into broken string takes place the terminal part 62k of the 6a that can prevent to connect up.In addition, the terminal 92 of wiring 9a is formed by metal film, and the electroplating processes that utilization has the gold etc. of corrosion resistance was implemented on the surface of its metal film, so be difficult for causing that for the terminal 92 of the 9a that connects up burn into breaks.
According to this embodiment, compare with the 1st embodiment, the terminal part 62k of the 1st terminal is covered by the conducting film with corrosion resistance 80.Moreover; Because terminal 62y both sides at wiring 6a; Dispose pair of conductive film 81, thereby above-mentioned electrochemical reaction is difficult for more taking place on the terminal part 62k of wiring 6a, can prevents that the burn into broken string from taking place for the terminal 62y of wiring 6a with corrosion resistance.
Its result does, can improve the 1st terminal of assembling structure 72 substrates 1, in its both sides and have a reliability of the electrical connection between the 2nd terminal of a pair of island conducting film 81 and substrate 2 of corrosion resistance.In addition, according to this structure, compare with the structure of above-mentioned patent documentation 1 and 2, it is complicated that the layout of wiring 6,9 can not become, and also can not cause in addition increases because of the cost that 6,9 the layout of connecting up causes.
[the 4th embodiment]
Below, with reference to Fig. 6, assembling structure 73 structures related for this embodiment describe.
The major part amplification plan view of the assembling structure 73 that Fig. 6 (a) expression and corresponding the 4th embodiment of Fig. 3 (a) are related.Fig. 6 (b) expression is along the major part sectional view of the assembling structure 73 of the transversal E-E ' of Fig. 6 (a).
When relatively the 4th embodiment and the 1st embodiment, its both sides' difference does, the wiring 9a structure that being equivalent to of substrate 1 connects up the terminal structure of 6a terminal 62 and on FPC7, be electrically connected with wiring 6a is then identical in addition.Thereby for the important document mark identical symbol identical with the 1st embodiment, its explanation is suitably omitted below.
Particularly, on the installation region face 1ha of the substrate 1 that constitutes assembling structure 73, separate proper spacing and be arranged with many outside connections with wiring 6.Here, be conceived to many outside terminals 62 that connect with 1 among the wiring 6 wiring 6a, can know that the terminal 62 of this wiring 6a has 2 terminal parts (62a, 62b), constitute as the 1st terminal.With the corresponding separately position of 2 terminal parts (62a, 62b), be formed with the opening 22a of protective seam 22.In addition, the terminal 62 of wiring 6 with side's side disposed adjacent of the terminal 62 of wiring 6a is made up of 1 terminal part.But, in this embodiment, be not limited thereto, also can be the structure identical with the terminal 62 of wiring 6 of side's side disposed adjacent of the terminal 62 of wiring 6a with the terminal of the 6a that connects up 62.In addition, the terminal 62 the opposing party's sides at wiring 6a are not provided with wiring.The 6a that for example connects up is arranged in that on the installation region face 1ha of substrate 1 many are outside to be connected with the end in the wiring 6.But, in this embodiment, be not limited thereto, the wiring of the current potential of supply and wiring 6a same potential also can be set in terminal 62 the opposing party's sides of wiring 6a.
On the other hand, on a side's of the basalis 8 of the FPC7 that constitutes assembling structure 73 face 8a, separate proper spacing and be arranged with many and connect up 9.Here, be conceived to the terminal 92 of 1 the wiring 9a of many wirings among 9, can know that the terminal 92 of wiring 9a has 2 terminal parts (92a, 92b), constitute as the 2nd terminal.In addition, the terminal 92 of wiring 9 of side's side that is disposed at the terminal 92 of wiring 9a is made up of 1 terminal part.But, in this embodiment, being not limited thereto, the terminal 92 of wiring 9 of side's side that is disposed at the terminal 92 of wiring 9a also can be the structure identical with the terminal of wiring 9a 92.In addition, terminal 92 opposite sides at wiring 9a are not provided with wiring.The 9a that for example connects up is the end in many wirings 9 that are arranged on 8 one face 8a of basalis of FPC7.But, in this embodiment, be not limited thereto, the wiring of supplying with the current potential of wiring 9a same potential also can be set in the opposing party's side of terminal 92 of wiring 9a.
Also have, the terminal 92 of wiring 9a is not defined as 2 terminal parts, can have the terminal part more than 3 yet.
Moreover 2 terminal parts (92a, 92b) of 2 terminal parts (62a, 62b) of wiring 6a and wiring 9a are electrically connected.Also have, the terminal 62 of wiring 6 of side's side that is disposed at the terminal 62 of wiring 6a also is electrically connected with the terminal 92 of the wiring 9 of side's side of the terminal 92 that is disposed at wiring 9a.Also have,, also can have only 1 terminal part among 2 of wiring 9a or 3 the above terminal parts to be electrically connected with the terminal part of the 6a that connects up for 2 terminal parts of wiring 6a.At this moment, as long as the terminal part 62a of not adjacent with wiring 6 terminal 62 side (opposite side) among 2 terminal parts of wiring 6a is electrically connected with the terminal part of wiring 9a, just can.Under the superincumbent structure, the wiring 9a through FPC7 supplies with the current potential Va higher than current potential Vb to the wiring 6a of substrate 1, and this current potential Vb is supplied in the wiring 6 of side's side of the wiring 6a that is positioned at substrate 1.For example, the wiring 6a of substrate 1 becomes the power voltage line of the noble potential that is applied in side of the positive electrode.
The assembling structure 73 related according to the 4th embodiment with top structure, the terminal 62 of wiring 6a is made up of 2 terminal parts (62a, 62b), and the terminal 92 of wiring 9a is made up of 2 terminal parts (92a, 92b).And 2 terminal parts (62a, 62b) and 2 terminal parts (92a, 92b) are electrically connected.Thereby; For example under hot and humid environment, use liquid-crystal apparatus with this assembling structure 73; And 6a supplies with high current potential (for example 6V) Va to wiring; When in addition the current potential lower than wiring 6a (for example 0V etc. reference potential) Vb, Vc are supplied with in the wiring 6 of side's side of this wiring 6a; On the current potential of supplying with between the wiring 6 of wiring 6a and one of which side's side, there is bigger potential difference (PD), so there is the possibility that the burn into broken string takes place because of the electrochemical reaction effect in the side's among 2 terminal parts (62a, 62b) of wiring 6a terminal part 62b.
But, because the current potential of same potential is supplied with in the terminal part (62a, 62b) of wiring 6a, so the potential difference (PD) between the opposing party's of the 6a that connects up a terminal part 62a and a side's the terminal part 62b is roughly 0V.Its result does, above-mentioned electrochemical reaction becomes and is difficult for taking place, and 2 terminal parts (92a, 92b) of the terminal part 62b of wiring 6a and wiring 9a become barrier, and the burn into broken string takes place the terminal part 62a of the 6a that can prevent to connect up.In addition, because the terminal 92 of wiring 9a is formed by metal film, the electroplating processes that utilization has the gold etc. of corrosion resistance was implemented on the surface of its metal film, so be difficult for causing that for the terminal 92 of the 9a that connects up burn into breaks.
Its result is to improve the 1st terminal of assembling structure 73 and the reliability of the electrical connection between the 2nd terminal.In addition, according to this structure, compare with the structure of above-mentioned patent documentation 1 and 2, it is complicated that the layout of wiring 6,9 can not become, and also can not cause in addition increases because of the cost that 6,9 the layout of connecting up causes.
In addition, in above-mentioned comparative example, for the terminal part burn into broken string of seeking to prevent to cause because of electrochemical reaction, effectively draw back as far as possible wiring 6a terminal 62 and and each terminal 62 of the wiring 6 of the terminal 62 adjacent settings of this wiring 6 between distance.But, because the physical dimension of substrate 1 and FPC7 receives specification limits, thus draw back its distance aspect have the limit.To this, in the 4th embodiment owing to can utilize said structure to seek to prevent the terminal part 62a burn into broken string of 6a that connects up, thus can dwindle wiring 6a terminal 62 and and each terminal 62 of the wiring 6 of these terminal 62 disposed adjacent between distance.
[the 5th embodiment]
Below, with reference to Fig. 7, describe for the structure of the related assembling structure 74 of this embodiment.
The major part amplification plan view of the assembling structure 74 that Fig. 7 (a) expression and corresponding the 5th embodiment of Fig. 6 (a) are related.Fig. 7 (b) expression is along the major part sectional view of the assembling structure 74 of the transversal F-F ' of Fig. 7 (a).
When relatively the 5th embodiment and the 4th embodiment, its both sides' difference does, is equivalent to the wiring 9a structure that connects up the terminal structure of 6a terminal 62 and on FPC7, be electrically connected with wiring 6a on the substrate 1, and is then identical in addition.Thereby for the important document mark identical symbol identical with the 4th embodiment, its explanation is suitably omitted below.
Particularly; On the substrate 1 that constitutes assembling structure 74; Be conceived to many outside terminal 62x that connect with 1 among the wiring 6 wiring 6a, can know that the terminal 62x of this wiring 6a constitutes as the 1st terminal, the 1st terminal possesses: 2 terminal parts (62a, 62b) that are made up of metal film; With the conducting film with corrosion resistance (for example, the nesa coating of ITO etc.) 80.Conducting film 80 is configured in the position of capped end subdivision 62a, and is configured in this terminal part 62a and overlooks on the position overlapped.On the other hand; On the FPC7x that constitutes assembling structure 74; Be conceived to the terminal 92x of 1 the wiring 9a of many wirings among 9; The terminal 92x that can know this wiring 9a is as possessing the 2nd terminal of 1 terminal part and constituting, and its terminal part is formed by metal film, and the electroplating processes that utilization has the gold etc. of corrosion resistance was implemented on the surface of its metal film.Also have, when relatively FPC7x and FPC7, just the connect up terminal structure of 9a of its both sides' difference is then identical in addition.
And, the conducting film 80 of the terminal part 62a among 2 terminal parts (62a, 62b) of covering wiring 6a, through the opening 22a of protective seam 22,62a is electrically connected with this terminal part.In addition, the wiring 9a through FPC7x supplies with the current potential Va higher than current potential Vb to the terminal 62x of substrate 1 wiring 6a, and this current potential Vb is supplied in the wiring 6 of side's side of the wiring 6a that is positioned at substrate 1.For example, the wiring 6a that has a terminal 62x becomes the power voltage line of the noble potential that is applied in side of the positive electrode.
The assembling structure 74 related according to the 5th embodiment with top structure, the terminal part 62a among 2 terminal parts (62a, 62b) of wiring 6a is covered by the conducting film with corrosion resistance 80.Thereby; For example under hot and humid environment, use this assembling structure 74; And 6a supplies with high current potential (for example 6V) Va to wiring; When in addition the current potential lower than wiring 6a (for example 0V etc. reference potential) Vb is supplied with in the wiring 6 of side's side of this wiring 6a; On the current potential of supplying with between the wiring 6 of wiring 6a and one of which side's side, there is bigger potential difference (PD), so there is the possibility that the burn into broken string takes place because of the electrochemical reaction effect in the side's among 2 terminal parts (62a, 62b) of wiring 6a terminal part 62b.
But, because the current potential of same potential is supplied with in the terminal part (62a, 62b) of wiring 6a, so the potential difference (PD) between the opposing party's of the 6a that connects up a terminal part 62a and a side's the terminal part 62b is roughly 0V.Its result does; Above-mentioned electrochemical reaction becomes and is difficult for taking place; The terminal 92x of the terminal part 62b of wiring 6a, wiring 9a and the conducting film 80 with corrosion resistance become barrier, can prevent with again 1 terminal part adjacent with other terminal the burn into broken string to take place.In addition, because the terminal 92x of wiring 9a is formed by metal film, the electroplating processes of gold with corrosion resistance etc. was implemented to utilize in the surface of its metal film, so be difficult for causing that for the terminal 92x of the 9a that connects up burn into breaks.
According to this embodiment; Owing to compare with the 4th embodiment; The terminal part 62a of the 1st terminal is covered by the conducting film with corrosion resistance 80; Thereby above-mentioned electrochemical reaction becomes more and to be difficult for taking place on the terminal part 62a of wiring 6a, and the burn into broken string takes place the terminal 62x of the 6a that can prevent to connect up.
Its result is to improve the 1st terminal of assembling structure 74 and the reliability of the electrical connection between the 2nd terminal.In addition, according to this structure, compare with the structure of above-mentioned patent documentation 1 and 2, it is complicated that the layout of wiring 6,9 can not become, and also can not cause in addition increases because of the cost that 6,9 the layout of connecting up causes.
[the 6th embodiment]
Below, with reference to Fig. 8, assembling structure 75 structures related for this embodiment describe.
The major part amplification plan view of the assembling structure 75 that Fig. 8 (a) expression and corresponding the 6th embodiment of Fig. 6 (a) are related.Fig. 8 (b) expression is along the major part sectional view of the assembling structure 75 of the transversal G-G ' of Fig. 8 (a).
When relatively the 6th embodiment and the 4th embodiment, its both sides' difference does, the structure of the terminal suitable with the terminal of the wiring 6a of substrate 1 62 etc. are then identical in addition.Thereby for the important document mark identical symbol identical with the 4th embodiment, its explanation is suitably omitted below.
Particularly; On the substrate 1 that constitutes assembling structure 75; Be conceived to many outside terminal 62y that connect with 1 among the wiring 6 wiring 6a, can know that the terminal 62y of this wiring 6a constitutes as the 1st terminal, the 1st terminal possesses: 1 the terminal part 62k that is made up of metal film; With the conducting film with corrosion resistance (for example, the nesa coating of ITO etc.) 80.Conducting film 80 is configured in the position of capped end subdivision 62k, and is configured in this terminal part 62k and overlooks position overlapped.In addition, with regard to this assembling structure 75,, dispose island conducting film (the for example nesa coating of ITO etc.) 81 with corrosion resistance in side's side of substrate 1 upper terminal 62y.On the other hand, the FPC7 structure that constitutes this assembling structure 75 is identical with the 4th embodiment, and the terminal 92 of many 1 the wiring 9as of wiring among 9 has 2 terminal parts (92a, 92b) as the 2nd terminal.And, covering the conducting film 80 of wiring 6a terminal 62y, the opening 22a through protective seam 22 is electrically connected with terminal part 62k, and is electrically connected with the terminal part 92a of wiring 9a on the FPC7.In addition, conducting film 81 also with FPC7 on the terminal part 92b of wiring 9a be electrically connected.
In the superincumbent structure, the wiring 9a through FPC7 supplies with the current potential Va higher than current potential Vb to the terminal 62y of substrate 1 wiring 6a, and this current potential Vb is supplied in the wiring 6 of the side's side that is positioned at the 6a that connects up.For example, the wiring 6a that has a terminal 62y becomes the power voltage line of the noble potential that is applied in side of the positive electrode.
The assembling structure 75 related according to the 6th embodiment can obtain following action effect.
That is to say; In this assembling structure 75; The terminal 62y of wiring 6a possesses 1 terminal part 62k that is made up of metal film and the conducting film 80 that covers this terminal part 62k and have corrosion resistance; And the side's side of terminal 62y at wiring 6a disposes the island conducting film 81 with corrosion resistance.Thereby; For example under hot and humid environment, use liquid-crystal apparatus with this assembling structure 75; And wiring 6a, 9a are supplied with high current potential (for example 6V) Va; When in addition low current potential (for example 0V etc. reference potential) Vb is supplied with in the wiring 6 of side's side of this wiring 6a; On the current potential of supplying with between the wiring 6 of wiring 6a and one of which side's side, there is bigger potential difference (PD), so there is the possibility that the burn into broken string takes place because of the electrochemical reaction effect in the conducting film 81 of side's side of the terminal 62y of wiring 6a.
But; Because to the wiring 6a terminal 62y and be positioned at side's side of this terminal 62y and island conducting film 81 with corrosion resistance; Supply with the current potential of same potential, so the terminal 62y of wiring 6a and be roughly 0V in the side's side of this terminal 62y and the potential difference (PD) that has between the island conducting film 81 of corrosion resistance.Its result does; Above-mentioned electrochemical reaction becomes and is difficult for taking place; The island conducting film 81 with corrosion resistance and 2 terminal parts (92a, 92b) of wiring 9a of side's side that constitute the conducting film with corrosion resistance 80, this terminal 62y of the terminal 62y of wiring 6a become barrier, and the burn into broken string takes place the terminal part 62k of the 6a that can prevent to connect up.In addition, because the terminal 92 of wiring 9a is formed by metal film, the electroplating processes that utilization has the gold etc. of corrosion resistance was implemented on the surface of its metal film, so be difficult for causing that for the terminal 92 of the 9a that connects up burn into breaks.
According to this embodiment, compare with the 4th embodiment, the terminal part 62k of the 1st terminal is covered by the conducting film with corrosion resistance 80.Moreover; Because side's side of terminal 62y at wiring 6a; Dispose the island conducting film 81 with corrosion resistance, thereby above-mentioned electrochemical reaction becomes more and to be difficult for taking place on the terminal part 62k of wiring 6a, the burn into broken string takes place in the terminal 62y of the 6a that can prevent to connect up.
Its result does, can improve the 1st terminal of assembling structure 75 substrates 1, in one of which side's side and have the reliability of the electrical connection between the 2nd terminal of island conducting film 81 and substrate 2 of corrosion resistance.In addition, according to this structure, compare with the structure of above-mentioned patent documentation 1 and 2, it is complicated that the layout of wiring 6,9 can not become, and also can not cause in addition increases because of the cost that 6,9 the layout of connecting up causes.
Also have, in this embodiment, terminal 92 structures of wiring 9a are not restricted to the structure that is made up of 2 terminal parts, can be the structures that is made up of 3 above terminal parts yet.In addition; Occasion in this structure; Also can be for the conducting film 81 of side's side of terminal 62y and this terminal 62y of wiring 6a, have only the conducting film 81 of side's side of terminal 62y and this terminal 62y of 2 terminal parts and wiring 6a among 3 above terminal parts of wiring 9a to be electrically connected.
[variation]
Also have, in this embodiment, can in the scope that does not break away from its aim, carry out various accommodations.
For example, unqualified to the wiring 6a number that possesses above-mentioned the 1st to the 6th embodiment terminal structure in this embodiment, the wiring with above-mentioned the 1st to the 6th embodiment terminal structure also can be provided with corresponding to the high wiring number of current potential.
In addition, in this embodiment, a plurality of terminal parts of the 1st terminal of the substrate 1 of above-mentioned the 1st, the 2nd, the 4th, the 5th embodiment also can change the width of terminal part respectively and constitute.Also have, in the occasion of this structure, if not with the adjacent terminal part of other terminal that is formed on the 1st substrate, too reduced the width of its terminal part, then resistance increases, and has the possibility that causes undesirable condition, thereby preferred, does not too reduce width.
In addition; In this embodiment; The terminal part of the 1st terminal of the substrate 1 of above-mentioned the 3rd, the 6th embodiment and with the island conducting film with corrosion resistance of the 1st terminal disposed adjacent, also can change the 1st terminal terminal part and island conducting film width and constitute.Also have, the occasion of this structure, if not with the adjacent terminal part of other terminal that is formed on the 1st substrate, too reduced the width of its terminal part, then resistance increases, and exists to cause the not possibility of good situation, thereby preferred, does not too reduce width.
In addition, in this embodiment, be not only the wiring 6a, the substrate 1 that possess above-mentioned the 1st to the 6th embodiment terminal structure, also can use for the wiring 9 of FPC7,7x.
In addition; Can use the substrate of following assembling structure not to be defined as as substrate (the 1st substrate) 1 of liquid-crystal apparatus 100 usefulness of electro-optical device one example or FPC (the 2nd substrate) 7,7x; The 1st substrate and the 2nd substrate also can be the various substrates except that electro-optical device or FPC, and above-mentioned assembling structure possesses the related terminal structure of this embodiment the 1st to the 6th embodiment.For example, the 2nd substrate also can be a drive IC.
[electronic equipment]
Below; With reference to Figure 10; Concrete example for the electronic equipment that possesses following liquid-crystal apparatus (below, representative be called " liquid-crystal apparatus 1000 that this embodiment is related ") describes, and this liquid-crystal apparatus possesses any assembling structure of above-mentioned the 1st to the 6th embodiment and variation.
At first, be used in the example of the display part of mobile personal computing machine (so-called node type personal computer), describe for the liquid-crystal apparatus that this embodiment is related 1000.Fig. 9 (a) is the oblique view of this personal computer architecture of expression.As shown in the drawing, personal computer 710 possesses: the main part 712 that possesses keyboard 711; The display part 713 of related liquid-crystal apparatus 1000 with using this embodiment.
Next, be used in the example of mobile phone display part, describe for the liquid-crystal apparatus that this embodiment is related 1000.Fig. 9 (b) is the oblique view of this structure of mobile telephone of expression.As shown in the drawing, mobile phone 720 except a plurality of operation push-buttons 721, also and answer mouthfuls 722, mouth piece 723 together, possess the display part 724 that uses liquid-crystal apparatus 1000 involved in the present invention.
Also have; As the electronic equipment that can use the related liquid-crystal apparatus of this embodiment 1000; Except the mobile phone shown in the personal computer shown in Fig. 9 (a) or Fig. 9 (b), can also enumerate out LCD TV, view finder formula/supervision direct-viewing type video tape recorder, automobile navigation apparatus, pager, electronic notebook, desk top computer, word processor, workstation, videophone, POS terminal and digital static video camera etc.
Claims (8)
1. an assembling structure is characterized by,
Possess: the 1st substrate and the 2nd substrate;
The 1st terminal, the 1st terminal are formed at above-mentioned the 1st substrate, and have a plurality of terminal parts of the arranged spaced of being spaced from each other;
Other terminal, this other terminal is formed at above-mentioned the 1st substrate, and adjacent with above-mentioned the 1st terminal; With
The 2nd terminal, the 2nd terminal are formed at above-mentioned the 2nd substrate, and are electrically connected with at least one above-mentioned terminal part of the above-mentioned terminal part of above-mentioned the 1st terminal;
To above-mentioned the 1st terminal, supply with than be supplied in the high current potential of current potential of above-mentioned other terminal.
2. assembling structure according to claim 1 is characterized by,
Above-mentioned the 2nd terminal of above-mentioned the 2nd substrate has a plurality of terminal parts of the arranged spaced of being spaced from each other,
The above-mentioned terminal part of above-mentioned the 2nd terminal is electrically connected with the above-mentioned terminal part of above-mentioned the 1st terminal.
3. assembling structure according to claim 1 is characterized by,
The above-mentioned terminal part of above-mentioned the 1st terminal comprises 3 terminal parts at least,
Above-mentioned the 2nd terminal comprises at least 3 terminal parts that are spaced from each other arranged spaced,
Above-mentioned at least 3 terminal parts of above-mentioned the 1st terminal are electrically connected with above-mentioned 3 terminal parts of above-mentioned the 2nd terminal at least.
4. assembling structure according to claim 1 is characterized by,
On above-mentioned the 1st substrate, above-mentioned other terminal only is formed at side's side of above-mentioned the 1st terminal.
5. an assembling structure is characterized by,
Possess: the 1st substrate and the 2nd substrate;
The 1st terminal, the 1st terminal are formed at above-mentioned the 1st substrate, and comprise metal film and conducting film,
This conducting film is configured in the position that covers above-mentioned metal film and has corrosion resistance;
The conducting film of island, the conducting film of this island are formed at above-mentioned the 1st substrate, and with above-mentioned the 1st terminal disposed adjacent and have corrosion resistance;
Other terminal, this other terminal is formed at above-mentioned the 1st substrate, and a side opposite with a side adjacent with above-mentioned the 1st terminal of the conducting film of above-mentioned island is adjacent;
The 2nd terminal, the 2nd terminal is formed at the 2nd substrate; With
A plurality of terminal parts, these a plurality of terminal parts are formed at above-mentioned the 2nd terminal, and are electrically connected with the above-mentioned conducting film of above-mentioned the 1st terminal and the conducting film of above-mentioned island, and are spaced from each other arranged spaced;
To the above-mentioned conducting film of above-mentioned the 1st terminal and the conducting film of above-mentioned island, supply with than be supplied in the high current potential of current potential of above-mentioned other terminal.
6. assembling structure according to claim 5 is characterized by,
On above-mentioned the 1st substrate, above-mentioned other terminal only is formed at side's side of above-mentioned island conducting film.
7. an electro-optical device is characterized by,
Possess according to claim 1 or 5 described assembling structures.
8. an electro-optic device is characterized by,
Possesses electro-optical device according to claim 7, as display part.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP075298/2008 | 2008-03-24 | ||
| JP2008075298 | 2008-03-24 | ||
| JP2009027453A JP2009258655A (en) | 2008-03-24 | 2009-02-09 | Mounting structure, electrooptical device, and electronic equipment |
| JP027453/2009 | 2009-02-09 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101546053A CN101546053A (en) | 2009-09-30 |
| CN101546053B true CN101546053B (en) | 2012-02-29 |
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| CN2009101268740A Active CN101546053B (en) | 2008-03-24 | 2009-03-24 | Mounting structure, electro-optical device, and electronic apparatus |
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| JP (1) | JP5382660B2 (en) |
| CN (1) | CN101546053B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104347008A (en) * | 2013-07-26 | 2015-02-11 | 精工爱普生株式会社 | Mounting structure, electro-optical apparatus, and electronic apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107507837B (en) * | 2017-08-11 | 2020-01-21 | 武汉天马微电子有限公司 | Array substrate and display panel comprising same |
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| CN1534555A (en) * | 2003-03-31 | 2004-10-06 | ������������ʽ���� | Electronic device, element substrate, electrooptics device and its mfg. method, and electronic apparatus |
| JP2004342860A (en) * | 2003-05-16 | 2004-12-02 | Texas Instr Japan Ltd | Integrated circuit package |
| JP2007173348A (en) * | 2005-12-20 | 2007-07-05 | Epson Toyocom Corp | Method of mounting electronic component, electronic component, piezoelectric device and method of manufacturing same |
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| JP3711398B2 (en) * | 1997-11-12 | 2005-11-02 | カシオ計算機株式会社 | Wiring board |
| JP2001091929A (en) * | 1999-09-24 | 2001-04-06 | Hitachi Ltd | Liquid crystal display device |
| JP2001332820A (en) * | 2000-05-24 | 2001-11-30 | Casio Comput Co Ltd | Flexible wiring board |
| KR100656915B1 (en) * | 2000-09-08 | 2006-12-12 | 삼성전자주식회사 | Signal transmission film, control signal part including and liquid crystal display including the film |
| JP3695307B2 (en) * | 2000-10-25 | 2005-09-14 | セイコーエプソン株式会社 | Wiring board, display device, semiconductor chip and electronic device |
| CN100378551C (en) * | 2001-10-22 | 2008-04-02 | 三星电子株式会社 | Liquid crystal display and its manufacture method |
| JP2008058798A (en) * | 2006-09-01 | 2008-03-13 | Denso Corp | Liquid crystal display apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1534555A (en) * | 2003-03-31 | 2004-10-06 | ������������ʽ���� | Electronic device, element substrate, electrooptics device and its mfg. method, and electronic apparatus |
| JP2004342860A (en) * | 2003-05-16 | 2004-12-02 | Texas Instr Japan Ltd | Integrated circuit package |
| JP2007173348A (en) * | 2005-12-20 | 2007-07-05 | Epson Toyocom Corp | Method of mounting electronic component, electronic component, piezoelectric device and method of manufacturing same |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104347008A (en) * | 2013-07-26 | 2015-02-11 | 精工爱普生株式会社 | Mounting structure, electro-optical apparatus, and electronic apparatus |
| CN104347008B (en) * | 2013-07-26 | 2019-10-01 | 精工爱普生株式会社 | Mounting structure, electro-optical device and electronic equipment |
Also Published As
| Publication number | Publication date |
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| JP5382660B2 (en) | 2014-01-08 |
| CN101546053A (en) | 2009-09-30 |
| JP2011065172A (en) | 2011-03-31 |
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