CN104730747A - Embedded touch display device - Google Patents
Embedded touch display device Download PDFInfo
- Publication number
- CN104730747A CN104730747A CN201310718039.2A CN201310718039A CN104730747A CN 104730747 A CN104730747 A CN 104730747A CN 201310718039 A CN201310718039 A CN 201310718039A CN 104730747 A CN104730747 A CN 104730747A
- Authority
- CN
- China
- Prior art keywords
- touch
- display device
- electrode layer
- drive wire
- electrode
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/13338—Input devices, e.g. touch panels
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Nonlinear Science (AREA)
- Human Computer Interaction (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Optics & Photonics (AREA)
- Position Input By Displaying (AREA)
Abstract
The invention provides an embedded touch display device. The embedded touch display device comprises a touch electrode layer, a common electrode layer and a display driving structure, wherein the display driving structure is sandwiched between the touch electrode layer and the common electrode layer and comprises a first driving wire, a switch subassembly and a pixel electrode; and the switch subassembly is respectively connected with the first driving wire and the pixel electrode. In a displaying period, a common electrode is applied to the common electrode layer, so that images of the embedded touch display device can be displayed normally by matching the common electrode layer and the pixel electrode; and in a touch detection period, a touch control signal is applied to the common electrode layer, and a touch action which is applied to the embedded touch display device can be detected by matching the common electrode layer and the touch electrode layer. In the touch detection period, a first compensation signal of which the phase is the same with that of the touch control signal is applied to the first driving wire. The embedded touch display device is high in stability and high in reliability.
Description
Technical field
The present invention relates to a kind of embedded touch display device.
Background technology
Along with day by day reducing of the flourish of flat panel display and manufacturing cost, the panel display apparatus with advantages such as radiation are low, thickness is little, low in energy consumption is more and more subject to the favor of consumer, therefore electronic product is widely used in, such as mobile phone, digital camera etc.As a rule, panel display apparatus mainly comprises electric plasma display device (PDP), liquid crystal indicator (LCD) and organic electroluminescent diode display device (OLED) etc.
In order to meet the needs of modern for man-machine interface more convenient, more directly perceived, market is released gradually various panel display apparatus with touch controllable function in recent years, i.e. touch control display apparatus.Touch control display apparatus generally can be divided into external and embedded two kinds.Wherein, touch-control sensing structure is directly produced among display panel (as display panels) by embedded touch display device system, thus realizes the integrated of both contact panel and display panel.But the display driver wiring of embedded touch display device may be detected touch action to touch-control sensing structure and cause certain interference, cause touching detecting mistake, thus reduce stability and the reliability of embedded touch display device.
Summary of the invention
In view of this, provide the embedded touch display device of a kind of stability and reliability real in necessary.
A kind of embedded touch display device, it comprises touch electrode layer, common electrode layer and display driver structure, this display driver structure is sandwiched between this touch electrode layer and this common electrode layer, and this display driver structure comprises the first drive wire, switch module and pixel electrode, this switch module is connected with this first drive wire and this pixel electrode respectively, this embedded touch display device comprises display time interval and touches the detecting period, at this display time interval, this common electrode layer is applied in common electric voltage with the normal pictures display coordinating this pixel electrode to realize this embedded touch display device, in this touch detecting period, this common electrode layer is applied in touch control signal and coordinates this touch electrode layer to detect the touch action being applied to this embedded touch display device, wherein in this touch detecting period, this first drive wire is applied in first compensating signal identical with this touch control signal phase.
Preferably, this first compensating signal is also identical with the amplitude of this touch control signal.
Further, this embedded touch display device also comprises first substrate, second substrate and the liquid crystal layer between this first substrate and this second substrate, this touch electrode layer is arranged on this first substrate, this display driver structure and this common electrode layer are arranged on this second substrate, to coordinate produce plane electric fields and drive the liquid crystal molecule of this liquid crystal layer to rotate in this common electrode layer with this pixel electrode.
Further, this display driver structure also comprises the second crossing drive wire that to insulate with the first drive wire, and this switch module also connects this second drive wire.Particularly, this first drive wire is sweep trace, this second drive wire is data line, this pixel electrode and this switch module are arranged in the Minimum Area of this first drive wire and the crossing formation of this second drive wire, this switch module comprises control end and two conduction terminal, this control end connects this first drive wire, and these two conduction terminal connect the second drive wire and pixel electrode respectively.
In one embodiment, in this touch detecting period, this second drive wire is applied in second compensating signal identical with this touch control signal phase.Preferably, this second compensating signal is also identical with the amplitude of this touch control signal.
In one embodiment, this touch electrode layer and common electrode layer form self-induction capacitance touch detecting structure, this touch electrode layer comprises multiple touch electrode in lattice arrangement, in this touch detecting period, the change in voltage that this embedded touch display device is detected on this touch electrode by reading unit obtains the touch action being applied to this embedded touch display device.Particularly, this reading unit comprises amplifier, electric capacity and gauge tap, this amplifier comprises first input end, the second input end and output terminal, this first input end connects this common electrode layer and receives this touch control signal, this second input end connects this touch electrode to detect the voltage on this touch electrode, this electric capacity electrical connection and between this second input end and this output terminal, this gauge tap and this Capacitance parallel connection.This touch control signal is continuous print square-wave signal.
In another embodiment, this touch electrode layer and common electrode layer form Inductance and Capacitance formula and touch detecting structure, this common electrode layer comprises multiple the first electrode extended along first direction, and this touch electrode layer comprises the second electrode that multiple edge is different from the second direction extension of this first direction.Wherein, the bearing of trend of this first electrode is identical with the bearing of trend of this first drive wire.
Preferably, this first drive wire be multiple and with this first electrode one_to_one corresponding, the plurality of first electrode is divided into n group first electrode, wherein often organize the first electrode and comprise at least two the first electrodes, this touch control signal is a touch sweep signal, in this touch detecting period, this n group first electrode is sequentially applied this touch sweep signal, and any time, one group of first electrode is only had to be applied in this touch sweep signal, when this i-th group of first electrode is applied in this touch sweep signal, the first drive wire that this i-th group of first electrode pair is answered is applied in this first compensating signal identical with this touch sweep phase simultaneously, wherein n and i is natural number, i is more than or equal to 1 and is less than or equal to n.Wherein, each touch sweep signal can comprise multiple continuous print pulse.Further, in one embodiment, this touch detecting period, this second drive wire is applied in DC voltage or unsettled.In change embodiment, this touch detecting period, this second drive wire is applied in the second compensating signal, and the waveform of this second compensating signal equals the waveform after the superposition of the plurality of touch sweep signal.
In embedded touch display device provided by the invention, in this touch detecting period, first drive wire of this display driver structure is applied in first compensating signal identical with this touch control signal phase, this first drive wire detects touch action impact on this common electrode layer and this touch electrode layer can be reduced, improve stability and the reliability of this embedded touch display device.
Accompanying drawing explanation
Fig. 1 is the perspective view of the embedded touch display device of first embodiment of the invention.
Fig. 2 is the three-dimensional exploded view of the display device of embedded touch shown in Fig. 1.
Fig. 3 is the planar structure schematic diagram of the structure of display driver shown in Fig. 1.
Fig. 4 is the floor map of the self-induction type capacitance touching control structure that common electrode layer shown in Fig. 1 and this touch electrode layer are formed.
Fig. 5 is the circuit diagram of the reading unit shown in Fig. 4.
Fig. 6 is the drive waveforms figure of the embedded touch display device shown in Fig. 1.
Fig. 7 is the three-dimensional exploded view of the embedded touch display device of second embodiment of the invention.
Fig. 8 is the planar structure schematic diagram of the display driver structure shown in Fig. 7 and this common electrode layer.
Fig. 9 is the floor map of the mutual inductance type capacitance touching control structure that the common electrode layer shown in Fig. 7 and this touch electrode layer are formed.
Figure 10 is a kind of floor map changing embodiment of mutual inductance type capacitance touching control structure that the common electrode layer shown in Fig. 7 and this touch electrode layer are formed.
Figure 11 is the drive waveforms figure of the embedded touch display device shown in Fig. 7.
Figure 12 is a kind of drive waveforms figure changing embodiment of embedded touch display device shown in Fig. 7.
Main element symbol description
Embedded touch display device 100,200
First substrate 110
Second substrate 120
Liquid crystal layer 130
Chromatic filter layer 112
Touch electrode layer 114,214
Common electrode layer 122,222
Insulation course 124
Display driver structure 126,226
First direction X
Second direction Y
First drive wire 1261,2261
Second drive wire 1262,2262
Pixel region 1263
Switch module 1264
Pixel electrode 1265
Control end 1266
First conduction terminal 1267
Second conduction terminal 1268
Scan drive circuit 142,242
Data drive circuit 144,244
First connecting line 161
Second connecting line 162
Touch circuit for detecting 150
Reading unit 151
Amplifier 153
First input end 154
Second input end 155
Output terminal 156
Electric capacity 157
Gauge tap 158
Signal output unit 170
Signal G1 ~ G6, Vd, Vcom, Vcom1 ~ Vcom3
First compensating signal Vb1
Second compensating signal Vb2
Touch control signal Vt1
Touch sweep signal Vt2
First electrode 2220
Second electrode 2140
Touch sensible electric capacity C
First group ~ n-th group first electrode TX1 ~ TXn
First conductive unit 2222
First linkage unit 2224
Second conductive unit 2142
Second linkage unit 2144
Following embodiment will further illustrate the present invention in conjunction with above-mentioned accompanying drawing.
Embodiment
Embedded touch display device provided by the invention mainly common electrode layer time-sharing multiplex is display driver electrode and panel framework and the circuit structure touching drive electrode, it comprises display time interval and touches the detecting period, at display time interval, this common electrode layer is used as the drive electrode of picture display; In the touch detecting period, this public electrode is used as the drive electrode of touch-sensing.
Particularly, refer to Fig. 1, Fig. 1 is the perspective view of the embedded touch display device 100 of first embodiment of the invention.This embedded touch display device 100 can be embedded touch liquid crystal indicator, it liquid crystal layer 130 comprising first substrate 110, second substrate 120 and be sandwiched between this first substrate 110 and this second substrate 120.Particularly, this first substrate 110 closes on this liquid crystal layer 130 side and is provided with chromatic filter layer 112 and touch electrode layer 114, wherein, preferably, this chromatic filter layer 112 is arranged at this first substrate 110 and closes on the surface of this liquid crystal layer 130 side, and this touch electrode layer 114 is arranged at the side that this chromatic filter layer 112 closes on this liquid crystal layer 130.This second substrate 120 closes on this liquid crystal layer 130 side and is provided with common electrode layer 122, insulation course 124 and display driver structure 126, wherein, preferably, this common electrode layer 122 is arranged at this second substrate 120 and closes on the surface of this liquid crystal layer 130 side, this insulation course 124 is arranged at this common electrode layer 122 and closes on the surface of this liquid crystal layer 130 side, and this display driver structure 126 is arranged at this insulation course 124 and closes on the surface of this liquid crystal layer 130 side.The initial orientation of this liquid crystal layer 130 is horizontal direction matching.
Refer to Fig. 2, Fig. 2 is the three-dimensional exploded view of the display device of embedded touch shown in Fig. 1 100.This touch electrode layer 114 comprises the touch electrode 1140 of multiple point-like, the arrangement in matrix of the plurality of touch electrode 1140.This common electrode layer 122 is a planar electrode layer, and this common electrode layer 122 forms self-induction type capacitance touching control structure with this touch electrode layer 114, and is applied to the touch action of this embedded touch display device 100 in touch detecting period detecting.This display driver structure 126 is insulated by this insulation course 124 and this common electrode layer 122, and to coordinate with this common electrode layer 122 in this display driver structure 126 of this display time interval and drive this embedded touch display device 100 to carry out picture display.
Refer to Fig. 3, Fig. 3 is the planar structure schematic diagram of this display driver structure 126.This display driver structure 126 comprises multiple the first drive wire 1261 along first direction X extension, many edges are different from the second direction Y extension of this first direction X and intersect with this second drive wire 1262 pixel region 1263 formed with vertically insulated the second crossing drive wire 1262 of this first drive wire 1261 and many these the first drive wires 1261.Each pixel region 1263 is provided with switch module 1264 and pixel electrode 1265, this switch module 1264 connects this first drive wire 1261, this second drive wire 1262 and this pixel electrode 1265 respectively, and this pixel electrode 1265 is for driving this embedded touch display device 100 to carry out picture display with this common electrode layer 122 at display time interval.
In present embodiment, this first drive wire 1261 is sweep trace, and this second drive wire 1262 is data line, and this first direction X can be vertical with this second direction Y, thus the plurality of pixel region 1263 is in matrix arrangement.This switch module 1264 comprises control end 1266, first conduction terminal 1267 and the second conduction terminal 1268, this control end 1266 is connected to this corresponding first drive wire 1261, this first conduction terminal 1267 is connected to the second corresponding drive wire 1262, and this second conduction terminal 1268 is connected to corresponding pixel electrode 1265.Wherein, this switch module 1264 is thin film transistor (TFT), and this control end 1266, this first conduction terminal 1267 and this second conduction terminal 1268 are respectively the grid of this thin film transistor (TFT), source electrode and drain electrode.In present embodiment, this pixel electrode 1265 and this common electrode layer 122 are all arranged on this second substrate 120, thus this pixel electrode 1265 can produce plane electric fields with this common electrode layer 122 drives the liquid crystal molecule of this liquid crystal layer 130 planar to rotate.
Further, be appreciated that, this embedded touch display device 100 also comprises the scan drive circuit 142 be electrically connected with this first drive wire 1261 and the data drive circuit 144 be electrically connected with this second drive wire 1262, wherein this scan drive circuit 142 is for applying scanning drive signal to this first drive wire 1261 at display time interval, and this data drive circuit 144 is for applying data drive signal to this second drive wire 1262 at display time interval.Especially, in present embodiment, this scan drive circuit 142 is also for applying the first compensating signal to this first drive wire 1261 in the touch detecting period, and this data drive circuit 144 is also for applying the second compensating signal to this second drive wire 1262 in the touch detecting period.
Refer to Fig. 4, Fig. 4 is that this common electrode layer 122 forms the floor map of self-induction type capacitance touching control structure with this touch electrode layer 114.This embedded touch display device 100 comprises touch circuit for detecting 150 further, this common electrode layer 122 is connected to this touch circuit for detecting 150 by this first connecting line 161, and each touch electrode 1140 of this touch electrode layer 114 is connected to this touch circuit for detecting 150 by the second connecting line 162.This touch circuit for detecting 150 comprises multiple reading unit 151, and wherein each touch electrode 1140 is connected to a corresponding reading unit 151 by the second connecting line 162.Refer to Fig. 5, Fig. 5 is the circuit diagram of this reading unit 151.This reading unit 151 comprises amplifier 153, electric capacity 157 and gauge tap 158, and this amplifier 153 comprises first input end 154, second input end 155 and output terminal 156.This first input end 154 connects this first connecting line 161, thus connects this common electrode layer 122 and receive this touch control signal.This second input end 155 connects this second connecting line 162, thus connects this touch electrode 1140 to detect the voltage on this touch electrode 1140.This electric capacity 157 is electrically connected and between this second input end 155 and this output terminal 156, this gauge tap 158 is in parallel with this electric capacity 157.Be appreciated that, this embedded touch display device 100 also comprises signal output unit 170, this signal output unit 170 connects the first input end 154 of this amplifier 153, and be electrically connected this common electrode layer 122 by this first connecting line 161, for providing touch control signal to this common electrode layer 122 in the touch detecting period.Further, this signal output unit 170 also can provide public voltage signal to this common electrode layer 122 at display time interval.
Refer to Fig. 6, Fig. 6 is the drive waveforms figure of the embedded touch display device 100 shown in Fig. 1.Below in conjunction with Fig. 6, the principle of work of this embedded touch display device 100 is described further.Wherein G1 ~ G6 represents scan drive circuit 142 and is applied to signal on these many first drive wires 1261, Vd representative data driving circuit 144 is applied to the signal on wherein second drive wire 1262, and Vcom representation signal output unit 170 is applied to the signal in common electrode layer 122.In addition, for convenience of understanding and describing, this case diagram only draws six the first drive wires 1261 and six the second drive wires 1262 exemplarily, but do not represent this case embedded touch display device 100 and only comprise six the first drive wires 1261 and six the second drive wires 1262, in actual applications, this embedded touch display device is actual comprises more first drive wire 1261 and the second drive wire 1262.
At display time interval, this scan drive circuit 142 sequentially exports multiple scanning drive signal to these many first drive wires 1261, this common electrode layer 122 is applied in a DC voltage of fixing as public voltage signal, and this data drive circuit 144 sequentially exports multiple data-signal to these many second drive wires 1262.During first drive wire 1261 is applied in sweep signal, the row switch module 1264 connecting this first drive wire 1261 is unlocked, now, the data-signal of this second drive wire 1262 writes corresponding pixel electrode 1265 by this switch module 1264, thus this pixel electrode 1265 and this common electrode layer 122 produce plane electric fields drives the liquid crystal molecule of this liquid crystal layer 130 planar to rotate, realize the picture display of this embedded touch display device 100.It will be appreciated, of course, that this common electrode layer 122 also can be applied in the square wave of the interchange that polarity is constantly reversed as public voltage signal in change embodiment.
In the touch detecting period, this scan drive circuit 142 exports the first compensating signal Vb1 to these many first drive wires 1261, this data drive circuit 144 applies the second compensating signal Vb2 to these many second drive wires 1262, this common electrode layer 122 is applied in touch control signal Vt1, thus can obtain by the change in voltage that this reading unit 151 is detected on the touch electrode 1140 of this touch electrode layer 114 touch action being applied to this embedded touch display device 100.Wherein, especially, this first compensating signal Vb1 is identical with the phase place of this touch control signal Vt1, and amplitude is preferably also identical.This second compensating signal Vb2 is identical with the phase place of this touch control signal Vt1, and amplitude is preferably also identical.In present embodiment, this touch control signal Vt1 is preferably continuous print square-wave signal.But, be appreciated that this touch control signal Vt1 can be continuous print sine wave signal or continuous print triangular signal in one change embodiment.
Find after deliberation, in embedded touch display device 100 provided by the invention, because the first drive wire 1261 of display driver structure 126 and the second drive wire 1262 are sandwiched between the capacitance touching control structure that this touch electrode layer 114 and this common electrode layer 122 form, thus the stray capacitance that this first drive wire 1261 and the second drive wire 1262 are formed with this common electrode layer 122 respectively easily impacts the touch detection signal of this common electrode layer 122, and then affect the detecting result of this reading unit 151.But, in the touch detecting period, by applying this first compensating signal Vb1 and this second compensating signal Vb2 respectively to this first drive wire 1261 and this second drive wire 1262, this first compensating signal Vb1 is identical with the phase place of this touch control signal Vt1, amplitude is preferably also identical, this second compensating signal Vb2 is identical with the phase place of this touch control signal Vt1, amplitude is preferably also identical, to a certain degree can offset the impact that this stray capacitance causes, improve stability and the reliability of embedded touch display device 100.
It should be noted that, in embedded touch display device 100 provided by the invention, all compensating signal is applied at touch detecting this first drive wire 1261 of period and this second drive wire 1262, but, be appreciated that, in change embodiment, only this first drive wire 1261 and this second drive wire 1262 wherein one be applied in compensating signal and can improve the phenomenon that impacts of the touch detection signal of stray capacitance to this common electrode layer 122 that display driver structure 126 formed equally to a certain extent.
Refer to Fig. 7, Fig. 7 is the three-dimensional exploded view of the embedded touch display device 200 of second embodiment of the invention.This embedded touch display device 200 is substantially identical with the embedded touch display device 100 of the first embodiment, that is, substantially the embedded touch display device 200 of this second embodiment can be applied to above to the explanation of the embedded touch display device 100 of this first embodiment, the key distinction of the two is: touch electrode layer 214 is different from the structure of common electrode layer 222, and it is also different with the first embodiment with the signal of common electrode layer 222 to be applied to touch electrode layer 214.
Specifically, this touch electrode layer 214 forms Inductance and Capacitance formula with common electrode layer 222 and touches detecting structure, this common electrode layer 222 comprises multiple the first electrode 2220 extended along first direction X, this touch electrode layer 214 comprises the second electrode 2140 that second direction Y that multiple edge is different from this first direction X extends, and this first electrode 2220 and this second electrode 2140 insulate and crossingly define multiple touch sensible electric capacity C for detecting touch action.Wherein, this first direction X can be vertical with this second direction Y.Refer to Fig. 8, Fig. 8 is the planar structure schematic diagram of display driver structure 226 and this common electrode layer 222.In present embodiment, the bearing of trend of this first electrode 2220 is identical with the bearing of trend of the first drive wire 2261, and, preferably, this first drive wire 2261 and this first electrode 2220 one_to_one corresponding, thus the corresponding row pixel region 2263 of each first electrode 2220.
Refer to Fig. 9, Fig. 9 is that this common electrode layer 222 forms the floor map of mutual inductance type capacitance touching control structure with this touch electrode layer 214.Wherein, the plurality of first electrode 2220 is divided into first group of first electrode TX1, second group of first electrode TX2 to the n-th group first electrode TXn, often organize the first electrode TXi and comprise at least two the first electrodes 2220, at least two the first electrodes 2220 often organizing the first electrode TXi are connected to this signal output apparatus 270 by same first connecting line 261, and the plurality of second electrode 2140 is electrically connected to respectively and touches circuit for detecting 250.Be appreciated that, for convenience of understanding and describing, this case diagram only draws i.e. three group of first electrode 2220 of six the first electrode 2220() exemplarily, but do not represent this case embedded touch display device and only comprise six the first electrodes 2220 or three group of first electrode 2220, in actual applications, this embedded touch display device is actual comprises more first electrode 2220 and the first drive wire 2611, and this first electrode 2220 also can be divided into more groups.
Especially, in present embodiment, this first electrode 2220 is vertical bar type with this second electrode 2140, but be appreciated that, in change embodiment, this first electrode 2220 also can not be vertical bar type with this second electrode, but as shown in Figure 10, this first electrode 2220 comprises multiple the first conductive unit 2222 roughly assumed diamond in shape and the first linkage unit 2224 be connected between this first conductive unit 2222, this second electrode 2140 comprises multiple the second conductive unit 2142 roughly assumed diamond in shape and the second linkage unit 2144 be connected between this second conductive unit 2142, and this first electrode 2220 only defines multiple touch sensible electric capacity C for detecting touch action at this first linkage unit 2224 and this second linkage unit 2144 place place's crossover with this second electrode 2140.
Refer to Figure 11, Figure 11 is the drive waveforms figure of the embedded touch display device 200 shown in Fig. 7.Below in conjunction with Figure 11, the principle of work of this embedded touch display device 200 is described further.Wherein G1 ~ G6 represents scan drive circuit 242 and is applied to signal on these many first drive wires 2611, Vd representative data driving circuit 244 is applied to the signal on wherein second drive wire 2612, and Vcom1 ~ Vcom3 representation signal output unit is applied to the signal on many groups of first electrode TX1 ~ TXn of common electrode layer 222.
At display time interval, this scan drive circuit 242 sequentially exports multiple scanning drive signal to these many first drive wires 2611, multiple first electrodes 2220 of this common electrode layer 222 are applied in a DC voltage of fixing as public voltage signal simultaneously, and this data drive circuit 244 sequentially exports multiple data-signal to these many second drive wires 2612.Particularly, the principle of work of this display time interval is substantially identical with the principle of work of the display time interval of the first embodiment, just repeats no more herein.
In the touch detecting period, this signal output apparatus 270 sequentially applies multiple touch sweep signal Vt2 as touch control signal to this n group first electrode TX1 ~ TXn.Wherein, any time, only have one group of first electrode TXi to be applied in this touch sweep signal Vt2, and often organize at least two the first electrodes 2220 are applied in same touch sweep signal Vt2.Further, when this i-th group of first electrode TXi is applied in this touch sweep signal Vt2, this scan drive circuit 242 exports the first drive wire 2261 that the first compensating signal Vb1 answers to this i-th group of first electrode pair, wherein the phase place of this first compensating signal Vb1 is identical with the phase place of the touch sweep signal of this i-th group of first electrode TXi, and amplitude is also identical.For example, when the 1st group of first electrode TX1 is applied in this touch sweep signal Vt2, this scan drive circuit 242 exports this first drive wire G1 and G2 corresponding to the first compensating signal Vb1 to the 1st group of first electrode TX1.Further, each touches sweep signal Vt2 and comprises multiple continuous print pulse, thus each first compensating signal Vb1 also comprises multiple continuous print pulse.Be appreciated that the quantity of the plurality of continuous impulse can set according to actual needs, as 20,40 etc.Further, in this touch detecting period, this second drive wire can be applied in DC voltage, as the DC voltage of 0 volt, or unsettled, any voltage does not also add.
In this second embodiment, first drive wire 2261 of this display driver structure 226 is applied in the first compensating signal Vb1 identical with this touch sweep signal Vt2 phase place and amplitude, this first drive wire 2261 detects touch action impact on this common electrode layer 222 and this touch electrode layer 214 can be reduced, improve stability and the reliability of this embedded touch display device 200.
Refer to Figure 12, Figure 12 is the drive waveforms figure that the embedded touch display device shown in Fig. 7 200 1 kinds changes embodiment.Below in conjunction with Figure 12, the principle of work of this embedded touch display device 200 is described further.Wherein G1 ~ G6 represents scan drive circuit 242 and is applied to signal on these many first drive wires 2611, Vd representative data driving circuit 244 is applied to the signal on wherein second drive wire 2612, and Vcom1 ~ Vcom3 representation signal output unit is applied to the signal on many groups of first electrode TX1 ~ TXn of common electrode layer 222.
At display time interval, this scan drive circuit 242 sequentially exports multiple scanning drive signal to these many first drive wires 2611, many the first electrodes 2220 of this common electrode layer 222 are applied in a DC voltage of fixing as public voltage signal simultaneously, and this data drive circuit 244 sequentially exports multiple data-signal to these many second drive wires 2612.Particularly, the principle of work of this display time interval is substantially identical with the principle of work of the display time interval of the first embodiment, just repeats no more herein.
In the touch detecting period, this signal output apparatus 270 sequentially applies multiple touch sweep signal Vt2 as touch control signal to this n group first electrode TX1 ~ TXn.Wherein, any time, only have one group of first electrode TXi to be applied in this touch sweep signal Vt2, and often organize at least two the first electrodes 2220 are applied in same touch sweep signal Vt2.Further, when this i-th group of first electrode TXi is applied in this touch sweep signal Vt2, this scan drive circuit 242 exports the first drive wire 2261 that the first compensating signal Vb1 answers to this i-th group of first electrode pair, wherein the phase place of this first compensating signal Vb1 is identical with the phase place of the touch sweep signal of this i-th group of first electrode TXi, and amplitude is also identical.For example, when the 1st group of first electrode TX1 is applied in this touch sweep signal Vt2, this scan drive circuit 242 exports this first drive wire G1 and G2 corresponding to the first compensating signal Vb1 to the 1st group of first electrode TX1.Further, each touches sweep signal Vt2 and comprises multiple continuous print pulse, thus each first compensating signal Vb1 also comprises multiple continuous print pulse.Be appreciated that the quantity of the plurality of continuous impulse can set according to actual needs, as 20,40 etc.
In addition, in this change embodiment, in the touch detecting period, this data drive circuit 244 also exports the second compensating signal Vb2 to this second drive wire 2612, this second compensating signal Vb2 comprises multiple continuous print pulse, and the waveform of this second compensating signal Vb2 equals the waveform after the superposition of the plurality of touch sweep signal Vt2 (waveform namely after Vcom1 ~ Vcom3 superposition) substantially, thus with the plurality of touch sweep signal, there is identical amplitude and corresponding phase place respectively.
In this change embodiment, first drive wire 2261 of this display driver structure 226 is applied in the first compensating signal Vb1 identical with this touch sweep signal Vt2 phase place and amplitude, this second drive wire 2262 is applied in the second compensating signal Vb2 identical with this touch sweep signal Vt2 phase place and amplitude, this first drive wire 2261 can be reduced and the second drive wire 2262 detects the impact of touch action to this common electrode layer 222 and this touch electrode layer 214, improve stability and the reliability of this embedded touch display device 200.
Claims (16)
1. an embedded touch display device, it comprises touch electrode layer, common electrode layer and display driver structure, this display driver structure is sandwiched between this touch electrode layer and this common electrode layer, and this display driver structure comprises the first drive wire, switch module and pixel electrode, this switch module is connected with this first drive wire and this pixel electrode respectively, it is characterized in that: this embedded touch display device comprises display time interval and touches the detecting period, at this display time interval, this common electrode layer is applied in common electric voltage with the normal pictures display coordinating this pixel electrode to realize this embedded touch display device, in this touch detecting period, this common electrode layer is applied in touch control signal and coordinates this touch electrode layer to detect the touch action being applied to this embedded touch display device, wherein in this touch detecting period, this first drive wire is applied in first compensating signal identical with this touch control signal phase.
2. embedded touch display device as claimed in claim 1, is characterized in that: this first compensating signal is also identical with the amplitude of this touch control signal.
3. embedded touch display device as claimed in claim 1, is characterized in that: this display driver structure also comprises the second crossing drive wire that to insulate with the first drive wire, and this switch module also connects this second drive wire.
4. embedded touch display device as claimed in claim 3, it is characterized in that: this first drive wire is sweep trace, this second drive wire is data line, this pixel electrode and this switch module are arranged in the Minimum Area of this first drive wire and the crossing formation of this second drive wire, this switch module comprises control end and two conduction terminal, this control end connects this first drive wire, and these two conduction terminal connect the second drive wire and pixel electrode respectively.
5. embedded touch display device as claimed in claim 3, is characterized in that: in this touch detecting period, this second drive wire is applied in second compensating signal identical with this touch control signal phase.
6. embedded touch display device as claimed in claim 5, is characterized in that: this second compensating signal is also identical with the amplitude of this touch control signal.
7. the embedded touch display device as described in claim 1 or 5, it is characterized in that: this touch electrode layer and common electrode layer form self-induction capacitance touch detecting structure, this touch electrode layer comprises multiple touch electrode in lattice arrangement, in this touch detecting period, the change in voltage that this embedded touch display device is detected on this touch electrode by reading unit obtains the touch action being applied to this embedded touch display device.
8. embedded touch display device as claimed in claim 7, it is characterized in that: this reading unit comprises amplifier, electric capacity and gauge tap, this amplifier comprises first input end, the second input end and output terminal, this first input end connects this common electrode layer and receives this touch control signal, this second input end connects this touch electrode to detect the voltage on this touch electrode, this electric capacity electrical connection and between this second input end and this output terminal, this gauge tap and this Capacitance parallel connection.
9. embedded touch display device as claimed in claim 7, is characterized in that: this touch control signal is continuous print square-wave signal.
10. embedded touch display device as claimed in claim 4, it is characterized in that: this touch electrode layer and common electrode layer form Inductance and Capacitance formula and touch detecting structure, this common electrode layer comprises multiple the first electrode extended along first direction, and this touch electrode layer comprises the second electrode that multiple edge is different from the second direction extension of this first direction.
11. embedded touch display device as claimed in claim 10, is characterized in that: the bearing of trend of this first electrode is identical with the bearing of trend of this first drive wire.
12. embedded touch display device as claimed in claim 10, it is characterized in that: this first drive wire be many and with this first electrode one_to_one corresponding, the plurality of first electrode is divided into n group first electrode, wherein often organize the first electrode and comprise at least two the first electrodes, this touch control signal is a touch sweep signal, in this touch detecting period, this n group first electrode is sequentially applied this touch sweep signal, and any time, one group of first electrode is only had to be applied in this touch sweep signal, when this i-th group of first electrode is applied in this touch sweep signal, the first drive wire that this i-th group of first electrode pair is answered is applied in this first compensating signal identical with this touch sweep phase simultaneously, wherein n and i is natural number, i is more than or equal to 1 and is less than or equal to n.
13. embedded touch display device as claimed in claim 12, is characterized in that: in this touch detecting period, this second drive wire is applied in DC voltage or unsettled.
14. embedded touch display device as claimed in claim 12, is characterized in that: in this touch detecting period, this second drive wire is applied in the second compensating signal, and the waveform of this second compensating signal equals the waveform after the superposition of the plurality of touch sweep signal.
15. embedded touch display device as claimed in claim 12, is characterized in that: each touches sweep signal and comprises multiple continuous print pulse.
16. embedded touch display device as claimed in claim 1, it is characterized in that: this embedded touch display device also comprises first substrate, second substrate and the liquid crystal layer between this first substrate and this second substrate, this touch electrode layer is arranged on this first substrate, this display driver structure and this common electrode layer are arranged on this second substrate, to coordinate produce plane electric fields and drive the liquid crystal molecule of this liquid crystal layer to rotate in this common electrode layer with this pixel electrode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310718039.2A CN104730747A (en) | 2013-12-24 | 2013-12-24 | Embedded touch display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310718039.2A CN104730747A (en) | 2013-12-24 | 2013-12-24 | Embedded touch display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104730747A true CN104730747A (en) | 2015-06-24 |
Family
ID=53454800
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310718039.2A Pending CN104730747A (en) | 2013-12-24 | 2013-12-24 | Embedded touch display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104730747A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105609062A (en) * | 2014-11-21 | 2016-05-25 | 业鑫科技顾问股份有限公司 | Embedded touch control display device and driving method thereof |
| CN105759485A (en) * | 2016-03-23 | 2016-07-13 | 友达光电股份有限公司 | Touch display panel and control method thereof |
| CN106681045A (en) * | 2017-03-29 | 2017-05-17 | 厦门天马微电子有限公司 | Liquid crystal display device and driving method thereof |
| CN106855760A (en) * | 2015-12-08 | 2017-06-16 | 群创光电股份有限公司 | Have the touch control display apparatus of pressure-sensing function |
| CN107025020A (en) * | 2016-01-22 | 2017-08-08 | 三星电子株式会社 | Touch processor including its touch display-driver Ics chip and its operating method |
| CN107515687A (en) * | 2016-06-15 | 2017-12-26 | 敦泰电子有限公司 | The image residue of embedded touch display device eliminates mitigation method and mobile device |
| CN108010955A (en) * | 2018-01-31 | 2018-05-08 | 京东方科技集团股份有限公司 | A kind of array base palte and driving method, display device |
| CN109164935A (en) * | 2018-08-24 | 2019-01-08 | 敦泰电子有限公司 | Touch-control display panel, touch drive circuit and touch-control driving method |
| CN112041797A (en) * | 2018-03-23 | 2020-12-04 | 深圳市柔宇科技股份有限公司 | Touch display driving method and touch display screen |
| CN112965628A (en) * | 2021-02-26 | 2021-06-15 | 维沃移动通信有限公司 | Electronic equipment and cover plate, control method and control device thereof |
| WO2021208118A1 (en) * | 2020-04-13 | 2021-10-21 | 深圳市华星光电半导体显示技术有限公司 | Touch display and anti-interference method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080055502A1 (en) * | 2006-09-04 | 2008-03-06 | Jeng-Fang Wu | Liquid crystal display panel and related device |
| CN102073402A (en) * | 2009-11-20 | 2011-05-25 | 群康科技(深圳)有限公司 | Touch display device |
| CN102375639A (en) * | 2010-08-24 | 2012-03-14 | 索尼公司 | Display device with touch detection function, control circuit, driving method of display device with touch detection function, and electronic unit |
| US20120162134A1 (en) * | 2009-09-27 | 2012-06-28 | Inferpoint Systems Limited | Touch display capable of eliminating touch impact on display |
| CN103018992A (en) * | 2012-12-27 | 2013-04-03 | 北京京东方光电科技有限公司 | Touch-control liquid crystal display screen and driving method thereof |
| CN103425347A (en) * | 2013-08-02 | 2013-12-04 | 敦泰科技有限公司 | Touch control display device |
-
2013
- 2013-12-24 CN CN201310718039.2A patent/CN104730747A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080055502A1 (en) * | 2006-09-04 | 2008-03-06 | Jeng-Fang Wu | Liquid crystal display panel and related device |
| US20120162134A1 (en) * | 2009-09-27 | 2012-06-28 | Inferpoint Systems Limited | Touch display capable of eliminating touch impact on display |
| CN102073402A (en) * | 2009-11-20 | 2011-05-25 | 群康科技(深圳)有限公司 | Touch display device |
| CN102375639A (en) * | 2010-08-24 | 2012-03-14 | 索尼公司 | Display device with touch detection function, control circuit, driving method of display device with touch detection function, and electronic unit |
| CN103018992A (en) * | 2012-12-27 | 2013-04-03 | 北京京东方光电科技有限公司 | Touch-control liquid crystal display screen and driving method thereof |
| CN103425347A (en) * | 2013-08-02 | 2013-12-04 | 敦泰科技有限公司 | Touch control display device |
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105609062B (en) * | 2014-11-21 | 2018-06-08 | 鸿富锦精密工业（深圳）有限公司 | Embedded touch shows equipment and driving method |
| CN105609062A (en) * | 2014-11-21 | 2016-05-25 | 业鑫科技顾问股份有限公司 | Embedded touch control display device and driving method thereof |
| CN106855760B (en) * | 2015-12-08 | 2020-06-09 | 群创光电股份有限公司 | Touch display device with pressure sensing function |
| CN106855760A (en) * | 2015-12-08 | 2017-06-16 | 群创光电股份有限公司 | Have the touch control display apparatus of pressure-sensing function |
| CN107025020B (en) * | 2016-01-22 | 2021-07-13 | 三星电子株式会社 | Touch processor, touch display driver integrated circuit chip including the same, and method of operating the same |
| CN107025020A (en) * | 2016-01-22 | 2017-08-08 | 三星电子株式会社 | Touch processor including its touch display-driver Ics chip and its operating method |
| US10234972B2 (en) | 2016-03-23 | 2019-03-19 | Au Optronics Corporation | Touch display panel alternately executing a display mode and a touch mode and control method thereof |
| CN105759485A (en) * | 2016-03-23 | 2016-07-13 | 友达光电股份有限公司 | Touch display panel and control method thereof |
| CN105759485B (en) * | 2016-03-23 | 2019-02-01 | 友达光电股份有限公司 | Touch display panel and control method thereof |
| CN107515687A (en) * | 2016-06-15 | 2017-12-26 | 敦泰电子有限公司 | The image residue of embedded touch display device eliminates mitigation method and mobile device |
| CN106681045A (en) * | 2017-03-29 | 2017-05-17 | 厦门天马微电子有限公司 | Liquid crystal display device and driving method thereof |
| CN108010955A (en) * | 2018-01-31 | 2018-05-08 | 京东方科技集团股份有限公司 | A kind of array base palte and driving method, display device |
| CN108010955B (en) * | 2018-01-31 | 2020-06-30 | 京东方科技集团股份有限公司 | Array substrate, driving method and display device |
| CN112041797A (en) * | 2018-03-23 | 2020-12-04 | 深圳市柔宇科技股份有限公司 | Touch display driving method and touch display screen |
| CN109164935A (en) * | 2018-08-24 | 2019-01-08 | 敦泰电子有限公司 | Touch-control display panel, touch drive circuit and touch-control driving method |
| CN109164935B (en) * | 2018-08-24 | 2022-07-19 | 敦泰电子有限公司 | Touch display panel, touch driving circuit and touch driving method |
| WO2021208118A1 (en) * | 2020-04-13 | 2021-10-21 | 深圳市华星光电半导体显示技术有限公司 | Touch display and anti-interference method thereof |
| US11586308B2 (en) | 2020-04-13 | 2023-02-21 | Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd. | Touch display and anti-interference method thereof |
| CN112965628A (en) * | 2021-02-26 | 2021-06-15 | 维沃移动通信有限公司 | Electronic equipment and cover plate, control method and control device thereof |
| CN112965628B (en) * | 2021-02-26 | 2024-04-09 | 维沃移动通信有限公司 | Electronic equipment, cover plate thereof, control method and control device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104730747A (en) | Embedded touch display device | |
| CN105830002B (en) | Reduce the touch input method for sensing and its device of effect of parasitic capacitance | |
| CN104731426B (en) | It is integrated with the display device and its driving method of touch panel | |
| CN102955637B (en) | A kind of capacitance type in-cell touch panel, its driving method and display device | |
| TWI609299B (en) | In-cell touch display device | |
| CN103809801B (en) | Display device including integrated form touch panel | |
| CN104461190B (en) | Touch integrated circuit and the touch screen display device including the touch integrated circuit | |
| CN105824143B (en) | Liquid crystal display device | |
| US8643624B2 (en) | Capacitive sensing using a segmented common voltage electrode of a display | |
| CN104571752B (en) | Touch sensor integrated-type display device | |
| CN101034331B (en) | Capacitor type touch screen | |
| US20120169635A1 (en) | Touchable sensing matrix unit, a co-constructed active array substrate having the touchable sensing matrix unit and a display having the co-constructed active array substrate | |
| CN203588234U (en) | Digital capacitance touch control panel | |
| CN101887200B (en) | Electronic paper of integrated capacitive touch screen and driving method thereof | |
| CN106095209A (en) | There is display device and the driving method thereof of integrated touch screen | |
| CN106095177A (en) | Touch-sensing equipment and driving method thereof | |
| US9710083B2 (en) | Liquid crystal display with integrated touch sensor | |
| CN104216583B (en) | touch screen driver | |
| CN104699368B (en) | Display device and its driving method | |
| CN103472942A (en) | Flat- panel display device and electronic apparatus | |
| CN104793819B (en) | Self-capacitance touch screen structure, In-cell touch panel and liquid crystal display | |
| KR20160104196A (en) | Display device and driving method for display device using the same | |
| CN103927072B (en) | TFT (thin film transistor) array substrate, touch display panel and touch display device | |
| CN104635976A (en) | Touch screen panel and display device | |
| CN102855038B (en) | A kind of touch display screen and touch display drive method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20161018 Address after: 518109 Guangdong city of Shenzhen province Baoan District Longhua Town Industrial Zone tabulaeformis tenth East Ring Road No. 2 two Applicant after: Hongfujin Precise Industry (Shenzhen) Co., Ltd. Applicant after: Hon Hai Precision Industry Co., Ltd. Address before: Taiwan Hsinchu County Chinese jhubei City, Taiwan 1 yuan a Street No. 7 Building 1 Applicant before: YEXIN TECHNOLOGY CONSULATION CO., LTD. Applicant before: AU OPTRONICS CO., LTD. |
|
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150624 |