CN110442269A - Touch control unit and touch-control display panel - Google Patents
Touch control unit and touch-control display panel Download PDFInfo
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- CN110442269A CN110442269A CN201910748484.0A CN201910748484A CN110442269A CN 110442269 A CN110442269 A CN 110442269A CN 201910748484 A CN201910748484 A CN 201910748484A CN 110442269 A CN110442269 A CN 110442269A
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Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0412—Digitisers structurally integrated in a display
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
Abstract
A kind of touch control unit and touch-control display panel.Touch control unit includes touch control electrode, switch element, touching signals line, first control signal line, anti-interference element, shares signal wire and second control signal line.Switch element is electrically connected touch control electrode.Touching signals line is electrically connected switch element.First control signal line is electrically connected switch element.Anti-interference element is electrically connected touch control electrode.It shares signal wire and is electrically connected anti-interference element.Second control signal line is electrically connected anti-interference element.
Description
Technical field
The invention relates to a kind of touch control units, and include switch element and anti-interference element in particular to one kind
Touch control unit and the touch-control display panel comprising multiple touch control units.
Background technique
With the progress of science and technology, the occurrence rate of touch-control display panel in the market is gradually increased, and various related technologies
Also it emerges one after another.In general, including the touch control electrode of the different position of touch of many correspondences in touch-control display panel, by chip
The current position of external object (such as finger) can be calculated and corresponded to which of touch-control display panel touch control electrode.In order to
In response to the demand in market, the size of touch-control display panel increases year by year, in touch-control display panel the touch control electrode of required setting with
And the quantity of chip is consequently increased.It is at high cost due to chip, the manufacturing cost of large-sized touch-control display panel occupy it is high not
Under, and the area of the peripheral region chip is arranged is difficult to reduce.
Summary of the invention
The present invention provides a kind of touch control unit, can be reduced the quantity of the chip for calculating position of touch.
The present invention provides a kind of touch-control display panel, can be reduced the quantity of the chip for calculating position of touch.
In one embodiment of this invention, touch control unit includes touch control electrode, switch element, touching signals line, the first control
Signal wire, anti-interference element, shared signal wire and second control signal line processed.Switch element is electrically connected touch control electrode.Touching
It controls signal wire and is electrically connected switch element.First control signal line is electrically connected switch element.Anti-interference element is electrically connected touching
Control electrode.It shares signal wire and is electrically connected anti-interference element.Second control signal line is electrically connected anti-interference element.
In one embodiment of this invention, a kind of touch-control display panel include substrate, pixel array, the first touch-control group extremely
P touch-control group.Pixel array is located on substrate.First touch-control group to P touch-control group is located on substrate.First touch-control group
Group to P touch-control group sequentially lines up P column, and wherein P is positive integer.Each of first touch-control group to P touch-control group
Respectively include multiple touch control units.Each touch control unit includes touch control electrode, switch element, touching signals line, first control signal
Line, shares signal wire and second control signal line at anti-interference element.Switch element is electrically connected touch control electrode.Touching signals
Line is electrically connected switch element.First control signal line is electrically connected switch element.Anti-interference element is electrically connected touch control electrode.
It shares signal wire and is electrically connected anti-interference element.Second control signal line is electrically connected anti-interference element.Positioned at the touching of same row
Control unit corresponds to same first control signal line.Same second control signal line is corresponded to positioned at the touch control unit of same row.
Below in conjunction with the drawings and specific embodiments, the present invention will be described in detail, but not as a limitation of the invention.
Detailed description of the invention
Figure 1A is the upper schematic diagram according to a kind of touch-control display panel of one embodiment of the invention.
Figure 1B is the upper schematic diagram according to a kind of touch-control display panel of one embodiment of the invention.
Fig. 2 is the schematic diagram according to a kind of control signal of touch-control display panel of one embodiment of the invention.
Fig. 3 is the schematic diagram according to a kind of control signal of touch-control display panel of one embodiment of the invention.
Fig. 4 is the upper schematic diagram according to a kind of touch-control display panel of one embodiment of the invention.
Fig. 5 is the upper schematic diagram according to a kind of touch-control display panel of one embodiment of the invention.
Fig. 6 is the upper schematic diagram according to a kind of touch-control display panel of one embodiment of the invention.
Fig. 7 A is the upper schematic diagram according to a kind of touch-control display panel of one embodiment of the invention.
Fig. 7 B is the diagrammatic cross-section along Fig. 7 A line aa '.
Fig. 7 C is the diagrammatic cross-section along Fig. 7 A line bb '.
Wherein, appended drawing reference:
10,20,30,40,50: touch-control display panel
100: substrate
110: pixel array
1201: the first touch-control groups
120P: the P touch-control group
122: touch control unit
1221~122q: the first touch control unit~q touch control unit
130: chip
A: thin film transistor (TFT)
A1: switch element
A2: anti-interference element
AA: viewing area
B1: first buffer layer
B2: second buffer layer
BA: peripheral region
BP: insulating layer
CH1, CH2: channel layer
CL, CL1, CL2: signal wire is shared
D1, D2: drain electrode
DL: data line
E: touch control electrode
GA1, GA2: grid
G1, G2, G3, G4, M1, M2, M3, M4: control signal
GI1: the first gate insulation layer
GI2: the second gate insulation layer
GL: control signal wire
GL1: first control signal line
GL2: second control signal line
H1, H2, H3, H4, O1, O2, O3: opening
I1, I2: insulating layer
L: signal wire
LCD: liquid crystal display mode
P1: the first test connection pad
P2: the second test connection pad
PE: pixel electrode
PL: flatness layer
S1, S2: source electrode
SL: scan line
SM1, SM2: light shield layer
SR: driving circuit
T: active member
TL: touching signals line
TL1~TLq: the first touching signals line~q touching signals line
TP: touch-control sensing mode
Von, Voff: signal
Specific embodiment
Structural principle and working principle of the invention are described in detail with reference to the accompanying drawing:
Figure 1A is the upper schematic diagram according to a kind of touch-control display panel of one embodiment of the invention.Figure 1B is according to this
A kind of upper schematic diagram of touch-control display panel of one embodiment of invention.The pixel battle array of touch-control display panel is omitted in Figure 1A
Column, Figure 1B is the partial enlarged view of touch-control display panel, and the position of Figure 1B has corresponded to the touch-control display panel of Figure 1A wherein
One touch control unit.
Figure 1A and Figure 1B are please referred to, touch-control display panel 10 includes substrate 100, pixel array 110, the first touch-control group
1201 to P touch-control group 120P, wherein P is positive integer.In the present embodiment, touch-control display panel 10 further includes chip 130.
Substrate has the viewing area AA and peripheral region BA positioned at the viewing area at least side.Pixel array 110 is located at base
On the viewing area AA of plate 100.Pixel array 110 include multi-strip scanning line SL, multiple data lines DL, multiple active member T and
Multiple pixel electrode PE.Multi-strip scanning line SL, multiple data lines DL, multiple active member T and multiple pixel electrode PE are located at
On the viewing area AA of substrate 100.Multiple active member T are electrically connected to multiple scan line SL and multiple data line DL.It is multiple
Pixel electrode PE is electrically connected to multiple active member T.
First touch-control group 1201 is located on substrate 100 to P touch-control group 120P.Although in the present embodiment, first
Touch-control group 1201 is located on the AA of viewing area to P touch-control group 120P, but invention is not limited thereto.In other embodiments
In, the first touch-control group 1201 to the part P touch-control group 120P is located on the BA of peripheral region.First touch-control group 1201 is to P
Touch-control group 120P is overlapped in pixel array 110.First touch-control group 1201 sequentially lines up P to P touch-control group 120P and arranges.
First touch-control group 1201 respectively includes multiple touch control units 122 to each of P touch-control group 120P.Respectively
Touch control unit 122 includes touch control electrode E, switch element A1, the touching signals line TL, first control signal line positioned at viewing area AA
GL1, anti-interference element A2, signal wire CL and second control signal line GL2 is shared.Touch control unit 122 is overlapped in pixel array
110.Touch control electrode E is overlapped in multiple pixel electrode PE.
Switch element A1 is electrically connected touch control electrode E.Touching signals line TL is electrically connected switch element A1.First control letter
Number line GL1 is electrically connected switch element A1.
Positioned at the corresponding same first control signal line GL1 of the touch control unit 122 of same row.In the present embodiment, each touching
Controlling unit 122 includes multiple switch element A1, wherein the switch element A1 of the same touch control unit 122 corresponds to same touch-control letter
Number line TL and same first control signal line GL1.Whereby, touching signals line TL passes to the signal of touch control electrode E less
It is easy to decay because of the impedance of switch element A1.By keeping multiple switch element A1 in parallel, the size of single switch element A1
It can reduce.
In the present embodiment, the first touch-control group 1201 respectively includes the touch-control of two column or more to P touch-control group 120P
Unit 122, and the first control signal line GL1 of touch control units 122 more than two column is electrically connected to each other.In other words, identical
Touch-control group in switch element A1 controlled by identical control signal.
Different touching signals line TL are respectively and electrically connected to positioned at the switch element A1 of the touch control unit 122 of adjacent column.
In other words, the touching signals positioned at the touch control unit of adjacent column 122 are transmitted by different touching signals line TL.Positioned at not
The switch element A1 of the touch control unit 122 of colleague is respectively and electrically connected to different touching signals line TL.
The corresponding first touch-control group 1201 of same touching signals line TL is more than the two into P touch-control group 120P.
In the present embodiment, the first touch-control group 1201 respectively includes two column touch control units 122, Yu Tongyi to P touch-control group 120P
In row touch control unit 122, wherein one bar of touch-control letter is electrically connected to positioned at the switch element A1 of the touch control unit 122 of odd column
Number line TL, is electrically connected to wherein another article of touching signals line TL positioned at the switch element A1 of the touch control unit 122 of even column.
Anti-interference element A2 is electrically connected touch control electrode E.It shares signal wire CL and is electrically connected anti-interference element A2.Second control
Signal wire GL2 processed is electrically connected anti-interference element A2.In the present embodiment, the shared signal wire CL of multiple touch control units 122 that
This is electrically connected.
Positioned at the corresponding same second control signal line GL2 of the touch control unit 122 of same row.In the present embodiment, each touching
Controlling unit 122 includes multiple anti-interference element A2, wherein the anti-interference element A2 electric connection of the same touch control unit 122 is same
Item shares signal wire CL and same second control signal line GL2.Whereby, it shares signal wire CL and passes to touch control electrode E's
Signal is less easily decayed because of the impedance of anti-interference element A2.By keeping multiple anti-interference element A2 in parallel, individually resist dry
The size for disturbing element A2 can reduce.
In the present embodiment, the first touch-control group 1201 respectively includes the touch-control of two column or more to P touch-control group 120P
Unit 122, and the second control signal line GL2 of touch control units 122 more than two column is electrically connected to each other.In other words, identical
Touch-control group in anti-interference element A2 controlled by identical control signal.
Chip 130 is located on the peripheral region BA of substrate 100.First control signal line GL1, it second control signal line GL2, is total to
Chip 130 is electrically connected to signal wire CL and touching signals line TL.Although in the present embodiment, with touch-control display panel 10
For a chip 130, but invention is not limited thereto.The quantity of chip 130 can change according to actual demand.
Based on above-mentioned, the same touching signals line TL of the touch-control display panel 10 of the present embodiment can be electrically connected to two
Therefore the touch control electrode of a above touch control unit can be reduced to provide the pin number of chip 130 of touching signals,
The quantity of chip 130 needed for alternatively can be reduced.Since the quantity of chip 130 can be reduced, touch-control display panel 10
The area of peripheral region BA can reduce, and can reduce the manufacturing cost of touch-control display panel 10.
Fig. 2 is the schematic diagram according to a kind of control signal of touch-control display panel of one embodiment of the invention.Citing comes
It says, Fig. 2 is, for example, on the first control signal line GL1 and second control signal line GL2 of the touch-control display panel of Figure 1A and Figure 1B
Control signal schematic diagram.
When applying signal Von to first control signal line GL1, the touching signals on corresponding touching signals line TL can lead to
Corresponding switch element A1 is crossed, and passes to corresponding touch control electrode E.At this point, corresponding touch control electrode E has touch-control sensing
Function.Conversely, when applying signal Voff to first control signal line GL1 (or signal is not applied to first control signal line GL1
When), the touching signals on corresponding touching signals line TL will be difficult to through corresponding switch element A1.
When applying signal Von to second control signal line GL2, common signal (or the common electricity on signal wire CL is shared
Pressure) can be by corresponding anti-interference element A2, and pass to corresponding touch control electrode E.At this point, corresponding touch control electrode E can be with
Pixel electrode in touch-control display panel is used to control the steering of liquid crystal together.Conversely, applying when to second control signal line GL2
When signal Voff (or when not applying signal to second control signal line GL2), the common signal shared on signal wire CL will be difficult to
Pass through corresponding anti-interference element A2.By the setting of shared signal wire CL and anti-interference element A2, the electricity of touch-control display panel
Hindering capacitive load (RC loading) can be lower, and can improve the problem of common signal is lost in transmittance process.
Figure 1A and Fig. 2 are please referred to, touch-control display panel includes the first touch-control group 1201 to P touch-control group 120P.
For convenience of explanation, Fig. 2 is only by taking the control signal in the first touch-control group to the 4th touch-control group as an example.First touching
It is applied with control signal M1 on the control corresponding first control signal line GL1 of group 1201, the first touch-control group 1201 corresponding the
Control signal G1 is applied on two control signal wire GL2.The corresponding first control letter of second touch-control group (Figure 1A omission is shown)
It is applied with control signal M2 on number line, is applied on the corresponding second control signal line of the second touch-control group (Figure 1A omission is shown)
Control signal G2.It is applied with control signal M3 on the corresponding first control signal line of third touch-control group (Figure 1A omission is shown),
Control signal G3 is applied on the corresponding second control signal line of third touch-control group (Figure 1A omission is shown).4th touch-control group
Control signal M4 is applied on (Figure 1A omission is shown) corresponding first control signal line, (Figure 1A omission is shown for the 4th touch-control group
Control signal G4 is applied on corresponding second control signal line out).
Touch-control display panel can be as time-switching be at liquid crystal display mode LCD or touch-control sensing mode TP.When touch-control is aobvious
Show panel in liquid crystal display mode LCD, the common signal for controlling liquid crystal steering is all applied in touch control electrode.Touch-control is aobvious
Show that panel in touch-control sensing mode TP, can be applied with touching signals at least one touch control electrode, in other touch control electrodes then
It is applied with the common signal for controlling liquid crystal steering.
It in the present embodiment, can be sequentially to two different touch-control groups when switching to touch-control sensing mode TP every time
Touch control electrode applies touching signals.For example, when switching to touch-control sensing mode TP for the first time, signal M1 will sequentially be controlled
And control signal M2 switches to Von, while control signal G1 and control signal G2 are sequentially switched to Voff, whereby sequentially
Touching signals are made to pass to the touch control electrode of the first touch-control group and the touch control electrode of the second touch-control group.Switch at second
When at touch-control sensing mode TP, control signal M3 and control signal M4 are sequentially switched into Von, while will sequentially control signal
G3 and control signal G4 switch to Voff, sequentially make whereby touching signals pass to third touch-control group touch control electrode and
The touch control electrode of 4th touch-control group.The mode of operation and so on of other touch-control groups, it is all when being scanned through with touching signals
After the touch control electrode of touch-control group (the first touch-control group to P touch-control group), then rescan since the first touch-control group.
It, can be sequentially to two different touch-control groups although in the present embodiment, switch to touch-control sensing mode TP every time
The touch control electrode of group applies touching signals, but invention is not limited thereto.In other embodiments, touch-control sensing is switched to every time
When mode TP, touching signals can be applied to the touch control electrode of one or three or more touch-control group.
Fig. 3 is the schematic diagram according to a kind of control signal of touch-control display panel of one embodiment of the invention.Citing comes
It says, Fig. 3 is, for example, on the first control signal line GL1 and second control signal line GL2 of the touch-control display panel of Figure 1A and Figure 1B
Control signal schematic diagram.
Fig. 3 respectively represents the different modes of operation of touch-control display panel from Fig. 2, and wherein part Fig. 3 similar with Fig. 2 can
To refer to preceding description, repeated no more in this.
The main difference of the mode of operation of the mode of operation and Fig. 2 of Fig. 3 is: in the embodiment of Fig. 3, in liquid crystal display mode
When formula LCD, the common signal in touch control electrode is transmitted by touching signals line.In other words, in the fig. 3 embodiment, in
When liquid crystal display mode LCD, the control signal (such as M1~M4) on the first control signal line of all touch-control groups is switched
At Von, so that the common signal on touching signals line is passed through switch element and pass to touch control electrode E.
When touch-control sensing mode TP, the signal of touching signals line transmitting switches to touching signals, common signal then by
Share signal wire transmitting.Therefore, in touch-control sensing mode TP, in addition to the first control signal line for the touch-control group scanned
On control signal switch to other than Von, the control signal on the first control signal line of other touch-control groups switches to Voff,
And the control signal on the second control signal line of other aforementioned touch-control groups is switched into Von, enable touching signals by pair
The switch element for the touch-control group answered simultaneously passes to corresponding touch control electrode E, while common signal passes through other touch-control groups
Anti-interference element simultaneously passes to touch control electrode.
It in the present embodiment, can be sequentially to two different touch-control groups when switching to touch-control sensing mode TP every time
Touch control electrode applies touching signals.For example, when switching to touch-control sensing mode TP for the first time, control signal M1 is maintained
Von, however the signal of the corresponding touching signals line TL transmitting of the first touch-control group is converted into touching signals by common signal.Work as biography
When passing touching signals to the first touch-control group, by the control signal (example on the corresponding first control signal line of other touch-control groups
Such as M2~M4) switch to Voff, and by the corresponding second control signal line of other touch-control groups control signal (such as G2~
G4 Von is switched to) to transmit common signal to other touch-control groups by shared signal wire.
Then control signal M1 is switched into Voff, and control signal G1 is switched into Von, make common signal through shared
Signal wire CL passes to the touch control electrode of the first touch-control group.Meanwhile control signal M2 is switched into Von and signal will be controlled
G2 switches to Voff, and touching signals is made to pass to the touch control electrode of the second touch-control group whereby.The operation side of other touch-control groups
Formula and so on, when the touch-control electricity for scanning through all touch-control groups (the first touch-control group to P touch-control group) with touching signals
After extremely, then rescan since the first touch-control group.
Fig. 4 is the upper schematic diagram according to a kind of touch-control display panel of one embodiment of the invention.In this mandatory declaration
, the embodiment of Fig. 4 continues to use the element numbers and partial content of the embodiment of Figure 1A and Figure 1B, wherein using identical or approximate
Label indicate identical or approximate element, and the explanation of same technique content is omitted.Explanation about clipped
It can refer to previous embodiment, this will not be repeated here.
The main difference of the touch-control display panel 10 of touch-control display panel 20 and Figure 1A of Fig. 4 is: aobvious in the touch-control of Fig. 4
Show in panel 20, the first touch-control group to P touch-control group respectively includes the touch control unit within q column, and wherein q is to be greater than or wait
In 1 positive integer.
Fig. 4 is by taking wherein a line touch control unit 122 of the first touch-control group as an example.First touch-control group includes q column touch-control list
Member 122.In other words, every a line touch control unit 122 in the first touch-control group includes q touch control unit 122, is respectively sequentially
First touch control unit 1221 is to q touch control unit 122q.In the first touch-control group, each touch control unit 122 is electrically connected to
Corresponding touching signals line TL.For example, the first touch control unit 1221 is electrically connected to q touch control unit 122q
To the first touching signals line TL1 to q touching signals line TLq.In other words, every a line touch control unit of the first touch-control group
122 include q touching signals line TL.
In the present embodiment, the first touching signals line TL1 to q touching signals line TLq substantially can be across the first touch-control
Group to P touch-control group.For example, every a line touch control unit 122 in the second touch-control group also includes the first touch-control list
Member 1221 to q touch control unit 122q, the first touching signals line TL1 to q touching signals line TLq is in addition to being electrically connected the
The of the second touch-control group is also electrically connected to q touch control unit 122q in first touch control unit 1221 of one touch-control group
One touch control unit 1221 is to q touch control unit 122q.
However, not every a line touch control unit 122 of the first touch-control group to each of P touch-control group all includes
Q column touch control unit 122.For example, every a line touch control unit 122 of P touch-control group include the first touch control unit 1221 to
Q-1 touch control unit 122q-1, the first touching signals line TL1 are electrically connected P to q-1 touching signals line TLq-1 and touch
The first touch control unit 1221 of group is controlled to q-1 touch control unit 122q-1, and q touching signals line TLq not with P touch-control
Any touch control unit 122 of group connects.In other words, the first touch-control group 1201 is each into P touch-control group 120P
The quantity of every a line touch control unit 122 of person is less than or equal to q.
In the present embodiment, there is n row touch control unit 122 in the first touch-control group 1201 to P touch-control group 120P respectively,
Middle n is positive integer.In other words, touch-control display panel 20 includes that n is multiplied by q touching signals line TL in total.
Based on above-mentioned, the same touching signals line TL of the touch-control display panel 20 of the present embodiment can be electrically connected to two
Therefore a above touch control electrode can be reduced, it may also be said to required to provide the pin number of chip of touching signals
The quantity of chip can be reduced.Since the quantity of chip can be reduced, the area of the peripheral region of touch-control display panel can reduce,
And it can reduce the manufacturing cost of touch-control display panel 20.
Fig. 5 is the upper schematic diagram according to a kind of touch-control display panel of one embodiment of the invention.In this mandatory declaration
, the embodiment of Fig. 5 continues to use the element numbers and partial content of the embodiment of Figure 1A and Figure 1B, wherein using identical or approximate
Label indicate identical or approximate element, and the explanation of same technique content is omitted.Explanation about clipped
It can refer to previous embodiment, this will not be repeated here.
The main difference of the touch-control display panel 10 of touch-control display panel 30 and Fig. 1 of Fig. 5 is: touch-control display panel 30
Partial common signal wire CL1 be electrically connected to the first test connection pad P1, and another part shares signal wire CL2 and is electrically connected to
Second test connection pad P2.
Referring to FIG. 5, the first test connection pad P1 and the second test connection pad P2 are located on the peripheral region BA of substrate 100.First
Test connection pad P1 is electrically connected to the shared signal wire CL1 of part touch control unit 122.Second test connection pad P2 is electrically connected to separately
The shared signal wire CL2 of a part of touch control unit 122.Be electrically connected to the part touch control unit 122 of the first test connection pad P1 with
Another part touch control unit 122 for being electrically connected the second test connection pad P2 is alternately arranged.Therefore, it can show or survey by picture
Impedance is measured, it is whether short-circuit to each other to detect adjacent touch control unit 122.In some embodiments, having carried out test later can
So that whole shared signal wire CL is mutually conducted, the mode of conducting is, for example, that laser welding shares signal wire CL1 and shares letter
Number line CL2, but invention is not limited thereto.
Although touch control unit 122 in the present embodiment, is divided into two groups to test, invention is not limited thereto.
In other embodiments, touch control unit 122 is divided into three groups or more to test.
Fig. 6 is the upper schematic diagram according to a kind of touch-control display panel of one embodiment of the invention.In this mandatory declaration
, the embodiment of Fig. 6 continues to use the element numbers and partial content of the embodiment of Figure 1A and Figure 1B, wherein using identical or approximate
Label indicate identical or approximate element, and the explanation of same technique content is omitted.Explanation about clipped
It can refer to previous embodiment, this will not be repeated here.
The main difference of the touch-control display panel 10 of touch-control display panel 40 and Fig. 1 of Fig. 6 is: touch-control display panel 40
Further include driving circuit SR.
Driving circuit SR is located on the peripheral region BA of substrate 100.Driving circuit SR is electrically connected to chip 130.First control
Signal wire GL1 processed and second control signal line GL2 are electrically connected to driving circuit SR.Driving circuit SR is, for example, gate driving electricity
Road is in (Gate On Array, GOA) on array.
By the setting of driving circuit SR, the pin number of chip 130 can be further reduced.Therefore, touching can be reduced
Control the manufacturing cost of display panel 40.
Fig. 7 A is the upper schematic diagram according to a kind of touch-control display panel of one embodiment of the invention.Fig. 7 B is along figure
The diagrammatic cross-section of 7A line aa '.Fig. 7 C is the diagrammatic cross-section along Fig. 7 A line bb '.It should be noted that, Fig. 7 A, scheme herein
The embodiment of 7B and Fig. 7 C continues to use the element numbers and partial content of the embodiment of Figure 1A and Figure 1B, wherein using identical or close
As label indicate identical or approximate element, and the explanation of same technique content is omitted.About saying for clipped
Bright to can refer to previous embodiment, this will not be repeated here.
Fig. 7 A, Fig. 7 B and Fig. 7 C are please referred to, light shield layer SM1 and light shield layer SM2 are located on substrate 100.First buffer layer
B1 and second buffer layer B2 is sequentially stacked on light shield layer SM1 and light shield layer SM2.The buffering of first buffer layer B1 and second
The material of layer B2 is for example respectively silicon nitride and silica.Channel layer CH1 and channel layer CH2 is located at second buffer layer B2
On, channel layer CH1 and channel layer CH2 are single or multi-layer structure, and material includes amorphous silicon, polysilicon, microcrystal silicon, monocrystalline
Silicon, organic semiconducting materials, oxide semiconductor material (such as: indium-zinc oxide, indium gallium zinc oxide or other suitable
Material or combinations of the above) other suitable materials or containing dopant (dopant) it is in above-mentioned material or above-mentioned
Combination.First gate insulation layer GI1 and the second gate insulation layer GI2 are sequentially stacked on channel layer CH1 and channel layer CH2.First
The material of gate insulation layer GI1 and the second gate insulation layer GI2 are for example respectively silica and silicon nitride.Grid G A1 and grid G A2
On the second gate insulation layer GI2, and it is overlapped in channel layer CH1 and channel layer CH2 respectively.Grid G A1 and grid G A2 distinguishes
It is electrically connected to scan line SL and control signal wire GL (such as the control of first control signal line GL1 or second of previous embodiment
Signal wire GL2 processed).Grid G A1, grid G A2, scan line SL, first control signal line GL1 and second control signal line GL2
Belong to identical film layer.Insulating layer I1 and insulating layer I2 are sequentially stacked on grid G A1 and grid G A2.Insulating layer I1 and insulation
The material of layer 12 respectively includes silica and silicon nitride.Source S 1 and drain D 1 are located on insulating layer I2, and respectively through opening
H1, H2 are electrically connected channel layer CH1, and opening H1, H2 are for example through the first gate insulation layer GI1, the second gate insulation layer GI2, insulation
Layer I1 and insulating layer I2.Source S 1 is electrically connected to data line DL.Source S 2 and drain D 2 are located on insulating layer I2, and saturating respectively
It crosses opening H3, H4 and is electrically connected channel layer CH2, be open H3, H4 are for example through the first gate insulation layer GI1, the second gate insulation layer
GI2, insulating layer I1 and insulating layer 12.Source S 2 be electrically connected to signal wire L (such as previous embodiment touching signals line TL or
Share signal wire CL).Touching signals line TL, signal wire CL, data line DL, source S 1, source S 2, drain D 1 and drain D 2 are shared
Belong to identical film layer.
Grid G A1, grid G A2, source S 1, source S 2, drain D 1 and drain D 2 are, for example, single or multi-layer structure, material
For example including the metals such as chromium, gold, silver, copper, tin, lead, hafnium, tungsten, molybdenum, neodymium, titanium, tantalum, aluminium, zinc, the alloy of above-mentioned metal, above-mentioned gold
The oxide of category, the combination of the nitride of above-mentioned metal or above-mentioned material or other conductive materials.
In the present embodiment, the active member T of pixel array 110 includes channel layer CH1, grid G A1, source S 1 and drain electrode
D1.Thin film transistor (TFT) A (such as switch element A1 or anti-interference element A2 of previous embodiment) includes channel layer CH2, grid
GA2, source S 2 and drain D 2.Although in the present embodiment, active member T and thin film transistor (TFT) A is with top gate-type thin film
For transistor, but invention is not limited thereto.In other embodiments, active member T and switch element A is bottom gate type
Thin film transistor (TFT).
Flatness layer PL is located in source S 1, source S 2, drain D 1 and drain D 2.Touch control electrode E is located on flatness layer PL, and
It is electrically connected drain D 2 through opening O3, the O3 that is open is for example through flatness layer PL.Insulating layer BP is located on touch control electrode E.Pixel
Electrode PE is located on insulating layer BP, and through opening O1 be electrically connected drain D 1, opening O1 for example through insulating layer BP with it is flat
Layer PL.Touch control electrode E has the opening O2 of corresponding opening O1.It for example further include display dielectric layer and optical filtering on pixel electrode PE
Device substrate.
In conclusion the same signal line L (or touching signals line) of the touch-control display panel 50 of the present embodiment can electricity
Property is connected to more than two touch control electrodes, therefore, can reduce to provide the pin number of chip of touching signals, can also
To say that the quantity of required chip can be reduced.Since the quantity of chip can be reduced, the face of the peripheral region of touch-control display panel
Product can reduce, and can reduce the manufacturing cost of touch-control display panel.
Certainly, the present invention can also have other various embodiments, without deviating from the spirit and substance of the present invention, ripe
It knows those skilled in the art and makes various corresponding changes and modifications, but these corresponding changes and change in accordance with the present invention
Shape all should fall within the scope of protection of the appended claims of the present invention.
Claims (15)
1. a kind of touch control unit characterized by comprising
One touch control electrode；
One switch element is electrically connected the touch control electrode；
One touching signals line, is electrically connected the switch element；
One first control signal line, is electrically connected the switch element；
Primary antibody interfering component is electrically connected the touch control electrode；
One shared signal wire is electrically connected the anti-interference element；And
One second control signal line is electrically connected the anti-interference element.
2. touch control unit as described in claim 1, which is characterized in that including multiple switch elements, wherein those switches are first
Part is electrically connected the touching signals line and the first control signal line.
3. touch control unit as described in claim 1, which is characterized in that including multiple anti-interference elements, wherein those are anti-dry
It disturbs element and is electrically connected the shared signal wire and the second control signal line.
4. a kind of touch-control display panel characterized by comprising
One substrate；
One pixel array is located on the substrate；And
One first touch-control group to a P touch-control group is located on the substrate, and the first touch-control group is to the P touch-control group
Group sequentially lines up P column, and wherein P is positive integer, wherein
Each of the first touch-control group to P touch-control group respectively includes multiple touch control units, respectively the touch control unit
Include:
One touch control electrode；
One switch element is electrically connected the touch control electrode；
One touching signals line, is electrically connected the switch element；
One first control signal line, is electrically connected the switch element；
Primary antibody interfering component is electrically connected the touch control electrode；
One shared signal wire is electrically connected the anti-interference element；And
One second control signal line is electrically connected the anti-interference element, wherein
The same first control signal line is corresponded to positioned at those touch control units of same row, and is located at those touch-controls of same row
Unit corresponds to the same second control signal line.
5. touch-control display panel as claimed in claim 4, which is characterized in that wherein positioned at those touch control units of adjacent column
Those switch elements are respectively and electrically connected to the different items touching signals line.
6. touch-control display panel as claimed in claim 4, which is characterized in that wherein the same touching signals line is electrically connected
The touch control electrode of those more than two of them touch control units.
7. touch-control display panel as claimed in claim 4, which is characterized in that wherein the first touch-control group to the P touch-control
Group respectively includes those touch control units within q column, and wherein q is the positive integer more than or equal to 1.
8. touch-control display panel as claimed in claim 7, which is characterized in that wherein two arrange being somebody's turn to do for those above touch control units
A little first control signal lines are electrically connected to each other.
9. touch-control display panel as claimed in claim 4, which is characterized in that further include:
One first test connection pad is electrically connected to the shared signal wire of those touch control units of part；And
One second test connection pad is electrically connected to the shared signal wire of those touch control units of another part, wherein being electrically connected
To the first test connection pad those touch control units of part and be electrically connected another part those touch-controls of the second test connection pad
Units alternately arrangement.
10. touch-control display panel as claimed in claim 4, which is characterized in that wherein the pixel array includes:
Multi-strip scanning line and multiple data lines are located on the substrate, wherein the first control signal line, the second control signal line
Belong to identical film layer with those scan lines, the touching signals line, this shares signal wire and those data lines belong to identical film layer；
Multiple active members are electrically connected to those scan lines and those data lines；And
Multiple pixel electrodes are electrically connected to those active members.
11. touch-control display panel as claimed in claim 10, which is characterized in that wherein those touch control electrodes are overlapped in those pictures
Plain electrode.
12. touch-control display panel as claimed in claim 4, which is characterized in that wherein respectively the touch control unit includes that multiple this is opened
Element is closed, wherein respectively those switch elements of the touch control unit are electrically connected the touching signals line and the first control signal
Line.
13. touch-control display panel as claimed in claim 4, which is characterized in that wherein respectively the touch control unit includes that multiple this resists
Interfering component, wherein respectively those anti-interference elements of the touch control unit are electrically connected the shared signal wire and the second control letter
Number line.
14. touch-control display panel as claimed in claim 4, which is characterized in that wherein those touch control units are overlapped in the pixel
Array.
15. touch-control display panel as claimed in claim 4, which is characterized in that the wherein switch element and the anti-interference element
On a viewing area.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW108101952 | 2019-01-18 | ||
| TW108101952A TWI698783B (en) | 2019-01-18 | 2019-01-18 | Touch unit and touch display panel |
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| CN110442269A true CN110442269A (en) | 2019-11-12 |
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| CN201910748484.0A Pending CN110442269A (en) | 2019-01-18 | 2019-08-14 | Touch control unit and touch-control display panel |
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| TW (1) | TWI698783B (en) |
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|---|---|
| TWI698783B (en) | 2020-07-11 |
| TW202028936A (en) | 2020-08-01 |
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