CN207994279U - The signal flat cable assembled configuration of touch device - Google Patents

Abstract

The utility model discloses a kind of signal flat cable assembled configuration of touch device, including：There is one touch tablet plural touch-control sensing unit to be connected to the first electric contact by the first conducting wire respectively, among the signal output port for the one side edge that first electric contact is provided in the touch tablet；One flexible flat cable, the equidistant conducting wire arranged in parallel of tool plural number, conducting wire front-end edge described in each item is connected to the second electric contact, and the conducting wire end edge is connected to third electric contact, in conducting wire upper and lower, sequentially concealed ground covers a flexible insulation layer, a high conductivity film and an insulating coating respectively, and it is in open setting to make second electric contact and the third electric contact；And a functional circuit unit, have a signal input port on its substrate, the 4th electric contact of plural number is equipped in signal input port；Second electric contact can be overlapped with the first electric contact phase electrotropism, and third electric contact can be overlapped with the 4th electric contact phase electrotropism.

Description

The signal flat cable assembled configuration of touch device

Technical field

The utility model is related to a kind of flexible flat cable structures, more specifically, relate to one kind be used for transmission it is tactile Template signal and the flexible flat cable structure with shielding electromagnetic interference efficiency.

Background technology

General touch device is generally connected to comprising a touch panel unit, a touch signal processing unit and one aforementioned Signal between the two transmits flat cable；The usual touch panel unit is equipped with most touch sensibles in its touch-control sensing area Electrode, each touch sensible electrode are separately connected Communication signal wire, and such Communication signal wire is made to be collected to signal output engagement port, The front end of signal transmission flat cable is electrically overlapped on the signal output end mouth, which transmits the rear end of flat cable Electric connection is on the signal input end mouth of the touch signal processing unit again in portion, accordingly by the touch sensible of the touch panel unit Signal transmits flat cable by the signal and is transmitted to touch signal processing unit progress calculation process.

Touch device is widely used on the 3C Products such as computer, communication and consumer electronics at present, in recent years due to 3C Requirement of the product for electronic building brick efficiency is also more and more high, such as miniaturization and densification, leads to this kind of electronic product most Be afraid of that the situation for encountering Electromagnetic Interference (EMI), electric wire wave interference (RFI) and static discharge (ESD) occurs, however aforementioned biography Signal transmission flat cable in the touch device of system is that the logical touch panel unit and touch signal processing are single in succession to electricity Member, so usually signal transmission flat cable has long company's elongation, and between the thin thin, wiring of its plain conductor setting Every fine and closely woven, so be easily subject to extraneous Electromagnetic Interference (EMI) or electric wire wave interference (RFI), generate accidentally signal or Decaying, so the signal transmission flat cable that the interference for how getting rid of EMI, RFI has become touch device is upper in design and application Important topic.

In addition, the signal in the touch device of aforementioned conventional transmits between flat cable and the touch signal processing unit Connection typically sets a terminal plug by the inserted terminal for transmitting flat cable in the signal, and in touch signal processing A terminal socket is set on the signal input engagement port of unit, is combined with shape with the grafting of the terminal socket by the terminal plug It at electric connection, however uses terminal plug, socket as grafting combination set, is minimized not only bad for electronic circuit, and Add additional many materials cost.

Utility model content

The utility model main purpose is to provide a kind of signal flat cable of touch device and its improvement of assembled configuration, The flexible flat cable has shielding electromagnetic interference efficiency, and it directly can electrically overlap bonding and be fixed on functional circuit unit Signal input port, to omit the setup cost of flat cable pedestal, and can promote group connect accuracy and promoted signal Transmission quality.

In order to reach above-mentioned creation purpose, the signal flat cable of touch device provided by the utility model assembles structure It makes, it includes：There is one touch tablet plural touch-control sensing unit to be connected to the first electric contact, institute by the first conducting wire respectively Among the signal output port for stating the one side edge that the first electric contact is provided in the touch tablet；One flexible flat cable, tool Plural equidistantly conducting wire arranged in parallel, conducting wire front-end edge described in each item are connected to the second electric contact and the conducting wire rear end Edge is connected to third electric contact, and in the conducting wire upper and lower respectively, sequentially concealed ground covers a flexible insulation layer, one highly conductive Rate film and an insulating coating, and it is in open setting to make second electric contact and the third electric contact, wherein simultaneously It is equipped with a hollow hole on the insulating coating, the high conductivity film is made to be set in open at the position of the hollow hole It sets；And a functional circuit unit, have a signal input port on its substrate, plural number is equipped in the signal input port The 4th electric contact；Wherein, second electric contact of the flexible flat cable can be with the signal output end of the touch tablet The first electric contact phase electrotropism overlap joint of mouth, the third electric contact of the flexible flat cable can be with the functional circuit list The 4th electric contact phase electrotropism overlap joint of the signal input port of member, by the flexible flat cable by the touch tablet and institute It states and is electrically connected between functional circuit unit, make the touch signal that the touch-control sensing unit is triggered that can smoothly be transmitted to institute Functional circuit unit is stated to carry out necessary disposition.

In particular, between the third electric contact of the flexible flat cable and the 4th electric contact of the functional circuit unit It is directly to make electrical overlap joint group by anisotropic conductive film (Anisotropic Conductive Film, ACF) to merge fixation, The setting that external connector or pedestal can be omitted both accordingly with up to saving the purpose of cost, and can be promoted and electrically combine Accuracy, the quality for promoting signal transmission.

In particular, covering high conductivity film in the flexible flat cable appearance to form shielding (shielding) effect Fruit, and by the high conductivity film the hollow hole open space with its configure using electric appliance metal-back electrically Contact makes the flexible flat cable can inhibit the dry of external frequency electromagnetic waves accordingly to form ground connection (grounding) state It disturbs, can also avoid going to influence other equipment as interference source.

In particular, the high conductivity film is selected from made by various aluminium foils, copper foil, goldleaf or various conductive materials Film, further, the high conductivity film also can be one reticulated film, but practical range is not limited with previous materials.

Preferable specific embodiment will be enumerated after being next to continue to explain, it is special with the innovation for furtheing elucidate the utility model Sign.

Description of the drawings

Fig. 1 is the schematic diagram of the utility model component separation.

Fig. 2 is the lateral parts cut-away view of the utility model Component composition.

Symbol description：

1 touch tablet

10 substrates

10a can look forward or upwards area

11 color frames

The shielded areas 11a

12 transparent touch sensors

12a row's induction arrays

121 induction electrodes

122 driving electrodes

123 Communication signal wires

124 signal output ports

125 electric contacts

2 signals transmit flat cable

21 copper foil conducting wires

22 input electric contacts

23 output electric contacts

24 polyester films

25 aluminium foils

26 insulation wheats are drawn

27 hollow holes

3 touch tablet control units

31 substrates

32 signal input ports

33 electric contacts

34 Communication signal wires

35 control loops

Specific implementation mode

Accompanying drawings show one preferred embodiment of the utility model afterwards, mainly flat comprising a touch tablet 1, signal transmission Cable 2 and a touch tablet control unit 3；Wherein, the substrate 10 of the touch tablet 1 is a high light transmission with excellent mechanical strength Rate sheets of glass is equipped with the color frame 11 being made by non-conductive material in the bottom surface peripheral part of the substrate 10, By the color frame 11 the shielded area 11a of frame-type is formed to define on the substrate 10 in peripheral part and in central part Area 10a can be looked forward or upwards.It is equipped with transparent touch sensor 12 in area 10a in looking forward or upwards for aforesaid base plate, is arranged by plural number and incudes array 12a groups At each induction array 12a has the driving electrodes 122 of an induction electrode 121 and majority, induction electrode 121 and driving electrodes 122 are correspondingly arranged in complementary graph each other；The induction electrode 121 of each induction array 12a is with driving electrodes 122 by Communication signal wire 123 are connected to the electric contact 125 in signal output port 124；Aforementioned signal output port 124 is disposed on 10 side of substrate In the shielded area 11a on side (refering to fig. 1).

As depicted in figs. 1 and 2, signal transmission flat cable 2 has the flat copper foil of plural number equidistantly arranged in parallel Conducting wire 21, such 21 front-end edge of copper foil conducting wire is connected to input electric contact 22 and end edge is connected to output electric contact 23, and Polyester (PET) film 24 of a pliability, the aluminium foil of a good conductivity are sequentially covered on upper and lower two surface of the copper foil conducting wire 21 25 and one insulation wheat draw 26 (such as films of makrolon (PC), polyester (PET)), during which is wrapped in Between, and aforementioned input electric contact 22 and output electric contact 23 is made to be in that open shape is arranged；It separately draws in the insulation wheat and is additionally provided on 26 One hollow hole 27 makes the aluminium foil 25 be arranged in open shape at hollow hole 27.

The touch tablet control unit 3 is a circuit board assembly (PCBA), has a signal input port 32 on its substrate 31, The electric contact 33 of plural number is equipped in the signal input port 32, such electric contact 33 is connected to control loop by Communication signal wire 34 35。

As shown in Figure 1, the front end position of signal transmission flat cable 2 can be overlapped on signal output port 124, make this The input electric contact 22 of equal 21 front-end edge of copper foils conducting wire corresponds to each other with the electric contact 125 in aforementioned signal output port 124 to be taken It connects, and makes electrical couplings between the two by binder of anisotropic conductive adhesive paste；In addition, the rear end of signal transmission flat cable 2 Position is overlapped on the signal input port 32, keeps the output electric contact 23 of such 21 end edge of copper foil conducting wire and aforementioned signal defeated Electric contact 33 in inbound port 32 corresponds to each other overlap joint, and the use of anisotropic conductive adhesive paste to be binder make electrical coupling between the two It closes；Make the sensor signal triggered on the touch tablet 1 that can transmit flat cable 2 via the signal accordingly and is transmitted to touch tablet control Unit 3 carries out operation.

According to the utility model embodiment, which transmits flat cable 2 by the copper foil fine and closely woven in such arrangement pitch The peripheral table of conducting wire 21 covers the aluminium foil 25 with good conductivity and shields electromagnetic interference effect to be formed, and by the aluminium foil 25 in hollow out Open space at hole 27 configures electrically to contact using the metal-back of electric appliance with it (is not depicted in figure to form ground state Face), signal transmission flat cable 2 is the interference that can inhibit external frequency electromagnetic waves accordingly, can also avoid becoming interference source It goes to influence other equipment.

Although refer to the attached drawing and completely having illustrated the utility model in conjunction with specific embodiments, it should be appreciated that previous embodiment Only for the purposes of the implementation example of further explanation, the utility model embodiment is not limited with the explanation, is familiar with this skill Art personage would appreciate that various change and modification.Such variation and modification are understood to include in as defined in the claims reality With novel scope.

Claims (7)

1. a kind of signal flat cable assembled configuration of touch device, which is characterized in that include：

There is one touch tablet plural touch-control sensing unit to be connected to the first electric contact by the first conducting wire respectively, and described first Electric contact is provided among the signal output port of the one side edge of the touch tablet；

One flexible flat cable has the equidistant conducting wire arranged in parallel of plural number, and conducting wire front-end edge is connected to the second electricity described in each item Conducting wire end edge is connected to third electric contact described in contact and each item, in the upper surface of described conducting wire, separately below sequentially covers Ground covers a flexible insulation layer, a high conductivity film and an insulating coating, and makes second electric contact and described Third electric contact is in open setting；

One functional circuit unit, has a signal input port on its substrate, and the of plural number is equipped in the signal input port Four electric contacts；And

Second electric contact is overlapped with the first electric contact phase electrotropism, the third electric contact and the 4th electric contact Phase electrotropism overlaps.

2. the signal flat cable assembled configuration of touch device as described in claim 1, which is characterized in that wherein, described It is to make electrically overlap joint by anisotropic conductive film to combine between one electric contact and second electric contact.

3. the signal flat cable assembled configuration of touch device as described in claim 1, which is characterized in that wherein, described It is to make electrically overlap joint by anisotropic conductive film to combine between three electric contacts and the 4th electric contact.

4. the signal flat cable assembled configuration of touch device as described in claim 1, which is characterized in that wherein, also include It is equipped with a hollow hole on the insulating coating, the high conductivity film is made to be set in open at the position of the hollow hole It sets.

5. the signal flat cable assembled configuration of touch device as claimed in claim 4, which is characterized in that wherein, the height Conductivity film is configured with it in the open space of the hollow hole and is electrically contacted using the metal-back of electric appliance to form ground connection.

6. the signal flat cable assembled configuration of touch device as described in claim 1, which is characterized in that wherein, the height Conductivity film is one of aluminium foil, copper foil, goldleaf.

7. the signal flat cable assembled configuration of touch device as described in claim 1, which is characterized in that wherein, the height Conductivity film is reticulated film.