The content of the invention
In view of this, it is necessary to provide a kind of touch-control precision higher touch control display apparatus.
A kind of touch control display apparatus, it includes first substrate, the second substrate being oppositely arranged with first substrate, a plurality of first
Sensing electrode, a plurality of second sensing electrode, a plurality of first sensing electrode are used to receive touch scanning signals, a plurality of second sense
Surveying electrode is used to respond the corresponding touch-control sensing signal of touch scanning signals generation, and the touch control display apparatus is according to the touch-control sense
Position of touch is known in the change of induction signal;The first substrate defines a touch-control viewing area and a non-touch-control viewing area, and the touch-control shows
Show that area is used to receive extraneous touch and display picture, the non-touch-control viewing area is located at the touch-control non-display area, to should
There is multiple first pins, a plurality of cabling and multiple second pins on the first substrate of non-touch-control non-display area;The plurality of
One pin transmits the touch scanning signals;The plurality of second pin transmits the touch sense signals;The a plurality of cabling electrical connection phase
The first sensing electrode answered and corresponding first pin, the plurality of second sensing electrode are electrically connected with corresponding multiple second pins
Connect, a plurality of cabling and the plurality of second pin mutually insulated, a conductive layer is arranged on neighbouring the plurality of the of a plurality of cabling
On the part of two pins and positioned at a plurality of cabling neighbouring the plurality of second pin part and the plurality of second pin between
Level, the conductive layer be grounded or be connected with the DC signal of a constant potential.
Compared with prior art, conductive layer, phase are set between above-mentioned cabling and pin for transmitting different touching signals
When in forming a series capacitance between cabling and pin, so as to reduce coupled capacitor between former cabling and pin, then cabling with
Situation reduction is interfered between pin while transmitting telecommunication, the signal transmission effect of touch control display apparatus is relatively stable,
The touch-control precision of touch control display apparatus is higher.
Brief description of the drawings
Fig. 1 is side schematic view of the touch control display apparatus of the present invention in an embodiment.
Fig. 2 is the schematic perspective view of touch control display apparatus in Fig. 1.
Fig. 3 is the floor map of touch control display apparatus first substrate, i.e. infrabasal plate in Fig. 1.
Fig. 4 is the cut-away view at IV-IV in Fig. 3.
Fig. 5 and Fig. 6 is respectively the section signal that the pixel base part of first substrate in Fig. 3 is located at the details on viewing area
Figure and floor map.
Main element symbol description
Touch control display apparatus 100
First substrate 110
Second substrate 190
Liquid crystal layer 170
First sensing electrode 120,120a, 120b ..., 120m, 120n
Second sensing electrode 180
Touch-control sensing chip 150
Flexible circuit board 140
Cabling 185,121,121a, 121b ..., 121m, 121n
Trace portions 121x
Coupling part 121y
Touch-control viewing area A-A
Non-touch-control viewing area B
First pin 123
Second pin 125
Conductive layer 127
First substrate 111
First insulating barrier 112
Second insulating barrier 113
3rd insulating barrier 115
Through hole 119
Conductor 1190
Gate line 116
Signal wire 114
4th insulating barrier 117
Pixel electrode 118
Pixel cell 181
Following embodiment will further illustrate the present invention with reference to above-mentioned accompanying drawing.
Embodiment
Refer to Fig. 1 and Fig. 2.In a specific embodiment, insert-type touch control type LCD display dress within touch control display apparatus
Example is set to specifically to introduce.Touch control display apparatus 100 includes first substrate 110, second substrate 190, liquid crystal layer 170, a plurality of first
Sensing electrode 120, a plurality of second sensing electrode 180, touch-control sensing chip 150 and flexible circuit board 140.The first substrate 110
Clamp the liquid crystal layer 170 with second substrate 190, make the liquid crystal layer 170 be located in the first substrate 110 and second substrate 190 it
Between.First sensing electrode 120 is arranged at neighbouring side of liquid crystal layer 170 of the first substrate 110.Second sensing electrode
180 are arranged at the side of second substrate 190, specifically, are arranged at remote side of liquid crystal layer 170 of second substrate 190.This is touched
Control sensor chip 150 is arranged at the edge of the first substrate 110, and the flexible circuit board 140 electrically connects the touch-control sensing chip 150
And second sensing electrode 180.The touch-control sensing chip 150 is electrically connected to first sensing electrode 120 simultaneously.
In the present embodiment, the first substrate 110 is infrabasal plate, i.e. thin-film transistor array base-plate.The second substrate
190 be upper substrate, i.e. colored filter substrate.A plurality of first sensing electrode 120 is used to receive touch scanning signals, and along the
One direction X is arranged in parallel.A plurality of second sensing electrode 180 is used to receive touch, responds the change of the touch scanning signals
Change, produce corresponding touch sense signals, Y is arranged in parallel in a second direction for a plurality of second sensing electrode 180.Touch-control display dress
It is fringe field switching type (Fringe Field Switching, FFS) or plane inner switching type with parallel electric field to put 100
(In-plane switching, IPS) touch control type LCD device.In the touch control display apparatus 100, its pixel electrode
118 (see Fig. 6) may be contained within thin-film transistor array base-plate with public electrode, so as to form horizontal component of electric field driving liquid crystal layer
The deflection of liquid crystal molecule in 170.Preferably, a plurality of first sensing electrode 120 is also used as the FFS/IPS type touch liquid simultaneously
The public electrode of crystal device.Second sensing electrode 180 is used as the FFS/IPS type touch control type LCD devices simultaneously
Screen layer.Second sensing electrode 180 is respectively via the cabling 185 that is arranged on the outer surface edge of second substrate 190 and soft
Circuit board (Flexible Printed Circuit Board, FPC) 140 and the touch-control sensing chip on the first substrate 110
150 electrical connections.In the present embodiment, first sensing electrode 120 is mutually perpendicular to the second sensing electrode 180, to coordinate sense
Position of touch is surveyed, the touch scanning signals and output touch-control sensing signal for being received from the touch-control sensing chip 150 output extremely should
Touch-control sensing chip 150.The touch-control sensing chip 150 judges position of touch according to the touch-control sensing signal received.
Also referring to Fig. 3, first sensing electrode 120 and the touch-control sensing on the first substrate 110 are specifically described
The attachment structure of chip 150.The first substrate 110 definition has touch-control viewing area A-A and the setting as display with touch interface
Non-touch-control viewing area B on the outside of the A-A of the touch-control viewing area.Touch-control viewing area A-A is used to receive extraneous touch and aobvious
Show picture.Non-touch-control viewing area B is located at touch-control viewing area A-A peripheries.A plurality of first sensing electrode 120 is arranged at this and touched
Control in the A-A of viewing area.The touch-control sensing chip 150 is arranged in the B of the non-touch-control viewing area.In addition, the first substrate 110 is also wrapped
Include a plurality of cabling 121 being connected with first sensing electrode 120, it is the first pin 123 of multiple connections corresponding with cabling 121, many
Individual the second pin 125 and a conductive layer 127 for connection corresponding with the pin of flexible circuit board 140.Wherein, the cabling 121,
First pin 123, the second pin 125 and conductive layer 127 may be contained within non-touch-control viewing area B, and one of the cabling 121
Point, the first pin 123, the second pin 125 and conductive layer 127 may be contained within non-touch-control positioned at touch-control viewing area A-A the same sides
Viewing area B, second pin 125 is located at the different layers of the first substrate 110, and the two insulation set with the cabling 121 respectively.
In the present embodiment, two ends of every one first sensing electrode 120 are connected to phase via a cabling 121 respectively
The first pin 123 answered so that the cabling 121 of same first sensing electrode 120 of connection constitutes parallel connection, reduces the resistance of cabling 121
Value, reduces the interference to touch scanning signals.The cabling 121 being connected with same first sensing electrode 120 constitutes a ring-type cabling,
Each ring-type cabling at least includes being located at the lower section of touch-control sensing chip 150 and walked with the neighbouring son set of second pin 125
Line part 121x.In the present embodiment, the ring-type cabling further comprise connect the sub- trace portions 121x and with the touch-control
Sensor chip 150 is arranged on the coupling part 121y of the same side of the first substrate 110.The sub- trace portions 121x is connected with this
Part 121y collectively forms part of the ring-type cabling parallel to first sensing electrode 120.
In the plane of first substrate 110, the conductive layer 127 is arranged between the pin 125 of the first pin 123 and second, and
It is grounded or is connected with the DC signal of a constant potential, is occurred for reducing between the cabling 121 and second pin 125
Capacitance Coupled phenomenon.In the present embodiment, 127 pairs of the conductive layer should sub- trace portions 121x and coupling part 121y
Set.It is appreciated that the conductive layer 127 also can only to should sub- trace portions 121x set.In terms of the direction shown in Fig. 3, it is
It is easy to the connection with flexible circuit board 140, second pin 125 is compared to first pin 123 closer to first base
The edge of plate 110.
For ease of description, with wherein from close to first pin 123 to the first sensing set away from first pin 123
Electrode 120, be respectively designated as 120a, 120b ..., 120m, 120n, and the cabling being connected with above-mentioned first sensing electrode 120
121a, 121b ..., subsequently illustrated exemplified by 121m, 121n.
Referring to Fig. 4, Fig. 4 is the cut-away view at IV-IV in Fig. 3.The first substrate 110 further comprises the first substrate
111st, the first insulating barrier 112 for being arranged at first substrate 111, the cabling 121a being arranged on first insulating barrier 112,
121b ..., 121m and 121n, be arranged at cabling 121a, 121b ..., on 121m and 121n and first insulating barrier 112
Two insulating barriers 113, the conductive layer 127 being arranged on second insulating barrier 113, it is arranged at second insulating barrier 113 and conductive layer
The 3rd insulating barrier 115, the first pin 123 being arranged on the 3rd insulating barrier 115, the second pin 125 on 127 and it is arranged at this
The touch-control sensing chip 150 on first pin 123, the second pin 125.Wherein, the 3rd insulating barrier 115 and the second insulating barrier
113 the first pin of correspondence 123 and cabling 121a position are provided with through hole 119.Conductor is provided with the through hole 119
1190, for cabling 121a to be electrically connected with the first pin 123.The conductive layer 127 covers the cabling 121.It can be seen that, in the present invention
In, the cabling 121 and the insulation set of the second pin 125, and the region that 127 pairs of the conductive layer should be where cabling 121 is (at least
To region that should be where the sub- trace portions 121x of cabling 121) it is arranged between the cabling 121 and second pin 125.Should
Conductive layer 127 is arranged at the sub- trace portions 121x of the cabling 121 of neighbouring second pin 125 top, between at least
Every the cabling 121 adjacent to second pin 125 sub- trace portions 121x and second pin 125.
Referring to Fig. 5, when touch control type LCD device is the touch control type LCD device of bottom gate polar form, in touch-control
In the A-A of viewing area, first substrate 110 include the first substrate 111, be arranged at first substrate 111 first insulating barrier 112,
The gate line 116 that is arranged on first insulating barrier 112, second be arranged on the gate line 116 and first insulating barrier 112
Insulating barrier 113, the signal wire 114 (such as source electrode line and drain line) being arranged on second insulating barrier 113, be arranged at this second
The 3rd insulating barrier 115 on insulating barrier 113 and signal wire 114, the common electrode layer being arranged on the 3rd insulating barrier 115, i.e.,
First sensing electrode 120, it is arranged at the 4th insulating barrier (see Fig. 6) on the insulating barrier 115 of the first sensing electrode 120 and the 3rd
117 and the pixel electrode 118 that is arranged on the 4th insulating barrier 117.
Also referring to Fig. 6, it is possible to understand that ground, in plane, many signal lines 114 be arranged in parallel, and a plurality of gate line 116 is flat
Row is set, and is mutually perpendicular between signal wire 114 and gate line 116, and form the pixel cell 181 of matrix arrangement.Pixel electrode
118 are arranged in matrix on the 4th insulating barrier 117 (see Fig. 5) simultaneously, one pixel cell of each correspondence of pixel electrode 118
181.It is used for each thin film transistor (TFT) for driving pixel electrode 118 not shown in present embodiment, also the not shown each picture of supply
The specific connected mode of the signal wire 114 of supply thin film transistor (TFT) electric signal and gate line 116 in plain unit, it is possible to understand that ground,
It is as good as with connected mode of the prior art.First sensing electrode 120 receives touch scanning signals in first time period,
It is used to transmit public voltage signal in second time period.Wherein the first time period replaces with second time period.
In the above-mentioned first embodiment of the present invention, first sensing electrode 120 is presented bar shaped and is electrically conducting transparent electricity
Pole.The a plurality of cabling 121 uses metal routing to make to play preferably signal transmission effect.The conductive layer 127 can be adopted
It is made of transparent conductive material, such as ITO, or metal material.
Preferably, in the first embodiment, the cabling 121 makes with gate line 116 with layer and positioned at the first substrate
110 same layer.Due to for the first substrate 110 of bottom gate thin film transistor array, the cabling 121 and the gate line
116 are located at same layer so that while technique is made in saving, it is ensured that the fore-and-aft distance between the cabling 121 and second pin 125
Maximum, so as to further reduce the influence of coupled capacitor.For further save processing procedure, the conductive layer 127 preferably with the signal
Line 114 makes with layer or made with the pixel electrode 118 or first sensing electrode 120 with layer.It is to be appreciated that real in change
Apply in mode, the cabling 121 can also be located at layer with signal wire 114 and be made with layer, the conductive layer 127 and the pixel electrode
118 or first sensing electrode 120 with layer make.And preferably for the first base with top gate type thin film transistor array
For plate 110, the cabling 121 is located at layer and made with layer with signal wire 114 can be while technique be made in saving, it is ensured that
Fore-and-aft distance between the cabling 121 and second pin 125 is maximum, so as to further reduce the influence of coupled capacitor.
Conductive layer 127 is set between the above-mentioned pin 125 of cabling 121 and second for transmitting different touching signals, quite
In forming a series capacitance between the pin 125 of cabling 121 and second, so that between reducing the former pin 125 of cabling 121 and second
Coupled capacitor, then interfere situation reduction while transmitting telecommunication between the pin 125 of cabling 121 and second, touch-control is shown
The signal transmission effect of device 100 is relatively stablized.The precision of touch control display apparatus 100 is higher.