CN103631463B

CN103631463B - A kind of digital capacitive touch panel

Info

Publication number: CN103631463B
Application number: CN201310316786.3A
Authority: CN
Inventors: 不公告发明人
Original assignee: Duntai Electronics (shenzhen) Co Ltd
Current assignee: Duntai Electronics (shenzhen) Co Ltd
Priority date: 2012-08-24
Filing date: 2013-07-25
Publication date: 2018-10-23
Anticipated expiration: 2033-07-25
Also published as: CN203588234U; CN103631463A

Abstract

The present invention relates to touch screen more particularly to digital capacitive touch panels.Present invention is disclosed a kind of digital capacitive touch screens, are made of touch base plate and touch-control circuit etc..The sensing electrode unit of array arrangement is set on touch base plate, each sensing electrode unit has independent extraction electrode line, touch-control circuit applies touching signals to multiple sensing electrode units simultaneously, and select to be applied at least one for detecting electrode of touching signals, by determining position of touch to the detecting of touching signals on detecting electrode or touching signals variation.The digital capacitive touch screen of the present invention is simple in structure, at low cost, reliability is high.

Description

A kind of digital capacitive touch panel

Technical field

The present invention relates to touch panel more particularly to capacitance type touch-control panels.

Background technology

Touch is the most important perceptive mode of the mankind, is that people carries out interactive most natural mode with machine.Touch panel It is developed so far and is widely used in the various fields such as personal computer, smart phone, public information, intelligent appliance, Industry Control. Mainly there are electric resistance touch-control panel, photo-electric touch panel, ultrasonic type touch panel, surface capacitance in current touch-control field Formula touch panel, in recent years projective capacitive touch panel quickly grow.

Electric resistance touch-control panel is still leading products currently on the market, but the knot of the double layer substrate of electric resistance touch-control panel Structure so that touch panel and display panel it is stacked together in use, touch panel the reflective brightness, right for influencing very much display Than display qualities such as degree, color saturations, make entirely to show that quality is greatly reduced, and increase the brightness of display panel backlight, can also Power consumption is set to rise sharply；Analog resistance touch panel the problem of there is also fix drifts, position correction is carried out frequently；In addition, electric The working method of resistive touch panel electrode contact, and make the service life of touch panel shorter.

Infrared-type touch panel and ultrasonic type touch panel do not interfere with display quality.But infrared-type touch panel Of high cost with ultrasonic type touch panel, water droplet and dust can all influence the reliability that touch panel works, especially infrared ray Formula touch panel and ultrasonic type touch panel mechanism complexity, power consumption are big so that infrared-type touch panel and ultrasonic type touch Control panel can not be applied on portable product substantially.

The structure of the single layer substrate of surface-capacitive touch panel so that touch panel and display panel is stacked together makes Used time, touch panel are little to showing the influence of quality.But surface-capacitive touch panel the problem of there is also fix drifts, no When to carry out position correction；Water droplet can also influence the reliability of touch panel work；Especially surface-capacitive touch panel work( It consumes big, of high cost, also allows surface-capacitive touch panel that can not apply on portable product substantially.

Projective capacitive touch panel still single layer substrate structure, but also touch panel and display panel are stacked together In use, touch panel is little to showing the influence of quality.But the not real digital touch-control of projective capacitive touch panel Panel, anchor point need to calculate by simulation, and the distribution capacity in manufacture and use environment can all influence touch panel work The interference of reliability, display drive signals and other electric signals can all influence the work of touch panel, and water droplet can also influence touch-control The reliability of panel work；In addition, projective capacitive touch panel has higher requirements to the resistance value aspect of detection electrode line, make The detection electrode line with the display panel projective capacitive touch panel stacked together used is obtained, it cannot be only such as ITO samples Low conductivity transparent electrode layer, will also be just like the high conductivity electrode layer of metal class, and manufacture technology is complicated, of high cost, especially Cost is excessively high in terms of large scale, even oversize touch panel.

Publication No. CN101887333A is entitled《A kind of digital capacitive touch screen》Patent, it is proposed that a kind of number Formula capacitance touching control panel, is made of touch base plate and touch-control circuit etc., and no less than two groups of intersections are provided on touch base plate Electrode group, each strip electrode line connect touch-control circuit, and each moment selects a plurality of electrode wires as detecting electrode, while to a plurality of inspection It surveys electrode wires and applies touching signals, and detect the variation of touching signals on a plurality of detecting electrode line；Or each moment selected section Electrode wires are applying touching signals to detecting electrode line and are detecting the variations of touching signals on detecting electrode line as detecting electrode While, touching signals also are applied to non-detection electrode wires；This scheme by applying detecting electrode and non-detection electrode simultaneously Touching signals reduce flowing of the touching signals between detecting electrode and between detecting electrode and non-detection electrode, control tactile The flow direction for controlling signal is increased to the accuracy for the pole judgement that gets an electric shock distinguishable each electrode wires, really realizes digital Capacitance touching control panel.This patent needs the electrode wires that two groups of intersections are arranged, and belongs on different electrode wires layers, manufacture craft It is relative complex, the judgement of position of touch is needed to carry out from two data of ranks, the determination of position of touch is relative complex.

Invention content

The present invention is exactly to realize simple independent digital capacitive touch panel.The present invention is by being arranged array arrangement Sensing electrode unit, each sensing electrode unit has separate extraction electrode line, while in multiple sensing electrode units The variation of touching signals or touching signals on sensing electrode unit is detected in upper application touching signals, the crosstalk of anti-stop signal one by one, It determines position of touch, digital capacitance touching control panel is realized on single-layer electrodes.

The technical problem of the present invention is resolved by technical solution below：

A kind of digital capacitive touch panel, including touch base plate and touch-control circuit, touch-control circuit have touch-control driving source With touching signals circuit for detecting；Sensing electrode cell array is provided on touch base plate, each sensing electrode unit has independent Extraction electrode line, the extraction electrode line of each sensing electrode unit connects touch-control circuit；The sensing electrode cell array refers to On two mutually orthogonal directions at any one sensing electrode unit, be all respectively provided with no less than two, with respective Spacing arrangement, mutually disjoint or the independent sensing electrode unit of non-overlapping copies；The extraction electrode line of the sensing electrode unit, It refer to the electric conduction polar curve of the connection sensing electrode unit that is arranged on touch panel to touch panel edge；In touch-control circuit work In the period of work, there is an at least moment, touch-control driving source to apply touching signals, touch-control letter to multiple sensing electrode units simultaneously Number circuit for detecting selects wherein at least one sensing electrode unit for detecting electrode；The detecting electrode refers to sensing electricity While pole unit is applied with touching signals, also the touching signals of the detecting inflow sensing electrode unit or touching signals change Sensing electrode unit.

Another specific aspect according to the present invention, the extraction electrode of each sensing electrode unit connection touch-control circuit Line is connected on the different leading foot of touch-control circuit.

Another specific aspect according to the present invention, the touch-control driving source applies multiple sensing electrode units simultaneously to be touched Signal is controlled, refers to touch-control driving source to two or more or all sensing electrode units while applying touching signals；It is more Position of a sensing electrode unit for being applied with touching signals on touch panel is adjacent to each other；The position senses adjacent to each other Electrode unit is all or part of sensing electrode units of colleague or/and same column.

Another specific aspect according to the present invention, the touching signals circuit for detecting selection wherein at least one sensing electricity Pole unit is detecting electrode, refers to applying touching signals to detecting electrode, and detect and flow into touching signals on detecting electrode unit While variation, touching signals also are applied to non-detection electrode；The non-detection electrode for applying touching signals is connection touch-control All or part of sensing electrode units of circuit.

Another specific aspect according to the present invention, the width of applied touching signals on each sensing electrode unit At least one of value, frequency, phase or coding are identical, or in the amplitude of applied touching signals, frequency, phase or coding It is different.

Another specific aspect according to the present invention, the touch-control circuit selection detecting electrode is carried out in a manner of scanning , different moments select different sensing electrode units as detecting electrode, and timesharing detecting flows into the touch-control letter of different detecting electrodes Number or touching signals variation.

Another specific aspect according to the present invention, the touch-control circuit synchronization select different multiple sensings electricity Pole unit detects the variation of the touching signals or touching signals that flow into different detecting electrodes as different detecting electrodes.

Another specific aspect according to the present invention, the touch-control circuit detecting flow into the touch-control letter on sensing electrode unit Number or touching signals variation, detecting is at least one of current signal and voltage signal；The current signal of the detecting Or voltage signal, it is at least one of amplitude, time, phase, frequency signal and umber of pulse.

Another specific aspect according to the present invention, the touch-control circuit flow into each sensing electrode unit by detecting On touching signals or touching signals variable quantity or touching signals change rate difference, electrode unit is surveyed by sense of touch to determine, or By calculate determine sensing electrode unit by tactile position.

Another specific aspect according to the present invention, the touch-control circuit are to detect touching signals or touching signals Variable quantity or the maximum position of touching signals change rate are by tactile position, or to detect touching signals or touching signals variable quantity Or touching signals change rate be more than certain given threshold position be by tactile position, with detect touching signals or touching signals change Change amount or the position maximum and more than certain given threshold of touching signals change rates are by tactile position.

Another specific aspect according to the present invention, sensing electrode unit and its extraction electrode on the touch base plate Line is the non-tactile face in touch base plate, or in the touch surface in touch base plate.

Another specific aspect according to the present invention, the digital capacitive touch panel are the upper bases with display panel Plate is touch base plate, and sensing electrode cell array and its extraction electrode line are arranged on the outer surface of display panel upper substrate, The upper substrate of the display panel refers to the substrate closer to user side in two plate base of display panel, outside the upper substrate Surface refers to upper substrate backwards to the surface of another substrate.

Another specific aspect according to the present invention has between the touch-control sensing electrode unit array and upper substrate outer surface There is bucking electrode, while applying touching signals to the sensing electrode unit, also to bucking electrode application and touch-control The drive signal of pumping signal same waveform, identical frequency, same phase.

Another specific aspect according to the present invention, the digital capacitive touch panel are the upper bases with display panel Plate is touch base plate, and sensing electrode cell array and its extraction electrode line are arranged on the inner surface of display panel upper substrate, The upper substrate of the display panel refers to the substrate closer to user side in two plate base of display panel, in the upper substrate Surface refers to upper substrate towards the surface of another substrate；Sensing electrode unit and its extraction electrode line be in display public electrode with Between upper substrate inner surface, showing has insulating layer between public electrode and sensing electrode unit and its extraction electrode line；It is described The display of digital capacitive touch panel is that timesharing carries out with touch-control, is applying the same of touching signals to the sensing electrode unit When, also to the display public electrode, applies and believe with the driving of touch-control pumping signal same waveform, identical frequency, same phase Number.

Another specific aspect according to the present invention, the digital capacitive touch panel are the upper bases with display panel Plate is touch base plate, and the display public electrode of above substrate inner surface or the bucking electrode of upper substrate outer surface are as sensing electrode Unit shows that public electrode or bucking electrode are cut into several independent small electrode units, and each small electrode unit has independent Extraction electrode line；The extraction electrode line of each small electrode unit is separately connected display driver circuit and touch-control electricity by gating device Road, display are carried out with touch-control timesharing；Drive period, the gating device that small electrode unit is made to connect with display driver circuit in display It is logical, apply and shows signal or shielded signal to small electrode unit；In the touch detection period, the gating device makes small electrode unit It is connected to touch-control circuit, applies touching signals to small electrode unit.

Another specific aspect according to the present invention, the touching signals that the touch-control circuit exports sensing electrode unit Frequency is not less than 20K Hz.

Another specific aspect according to the present invention, the sensing electrode unit on the touch base plate and its extraction electrode line Upper setting matcoveredn.

Another specific aspect according to the present invention, the edge or extraction electrode of sensing electrode unit on the touch base plate The edge of line is broken line, and the angle of two adjacent straight lines is more than 20 ° and is less than 160 ° on broken line.

Another specific aspect according to the present invention, the touch base plate are flexible or rigid transparent substrates.

The beneficial effect of the present invention compared with the prior art is：

Since sensing electrode unit is array arrangement on the touch area of entire touch panel, touched in operator's finger While surveying electrode unit by sense of touch, the adjacent or similar non-lead-out wire that electrode unit is surveyed by sense of touch, touch-control electricity can be also touched Lu Fei, which is surveyed by sense of touch on electrode unit, may also detect touching signals, and to generate signal cross-talk, electricity is surveyed by sense of touch by non- Pole unit is mistaken for surveying electrode unit by sense of touch, causes the misjudgment of position of touch, or causes in touch surface lining out Generate deviation；The sensing electrode unit of array arrangement is set in the technical program on touch panel, and to multiple sensing electricity Pole unit applies touching signals simultaneously, solves the problems, such as signal cross-talk between the sensing electrode unit of array arrangement：It is poised for battle It arranges sensing electrode unit multiple in the sensing electrode unit of arrangement and applies touching signals, operator's finger or other touch-controls simultaneously Object touch by sense of touch survey electrode unit and it is adjacent or it is similar it is non-by sense of touch survey electrode unit lead-out wire on when, from operator's hand Refer to or the electric current of other touch control objects outflow, is by multiple touch control electrodes while to provide, that is, by sense of touch survey electrode unit and non- The lead-out wire that electrode unit is surveyed by sense of touch provides electric current to touch control object simultaneously, and each touch control electrode flows to finger or other touch control objects Size of current is proportional to finger or other touch control objects touch the area of each touch control electrode；It is remote in the size of finger or other touch control objects More than sensing electrode unit lead-out wire width when, finger or other touch control objects touch the area of electrode unit is surveyed by sense of touch will Much larger than the non-area for being surveyed electrode unit lead-out wire by sense of touch is touched, hand is flowed to relative to from by sense of touch survey electrode unit in this way The electric current of finger or other touch control objects, just from the non-electric current for being flowed to finger or other touch control objects on sense of touch survey electrode unit lead-out wire It can be ignored.

Relatively easy independent digital capacitive touch panel may be implemented in the present invention, passes through the sensing electricity to array arrangement Separate extraction electrode line is arranged in pole unit, and the touching signals and its variation on each extraction electrode line correspond to corresponding positions Whether the sensing electrode unit set touches, it is only necessary to carry out a touch detection and be assured that touch-control, the detecting of touch-control is made to become It obtains simply.

The digital capacitive touch panel of the present invention, is touched in operator's finger or other touch control objects by tactile sensing electrode list When first, although the non-lead-out wire for being surveyed electrode unit by sense of touch can be also touched, to multiple in the sensing electrode unit of array arrangement Sensing electrode unit applies touching signals simultaneously, just considerably reduces the crosstalk of touching signals, controls the stream of touching signals To the accuracy to being touched position judgment is really realized digital capacitance touching control face specific to each sensing electrode unit Plate.

Different can also be adjusted to the amplitude of the applied touching signals of each detecting electrode, phase, frequency or coding, to non- The amplitude of the applied touching signals of detecting electrode, the width of phase, frequency or coding and the touching signals that detecting electrode is applied Value, phase, frequency or coding can also be adjusted to different, so that the flow direction of touching signals is more finely controlled.

Judge the condition of polar curve of geting an electric shock, can detect that touching signals variation is maximum and sensing more than certain given threshold Electrode unit is by tactile position, and touch control type flat-panel display is with single-point touch.Judge, by the condition of sense of touch survey electrode unit, also may be used Only to detect that touching signals variation more than the sensing electrode unit of certain given threshold is to be allowed of the invention digital by tactile position Capacitance touching control panel allows multi-point touch simultaneously.

The structure of the digital capacitive touch panel of the present invention is simple, only needs single-layer electrodes pattern, aobvious using current tablet Show that the usual manufacturing process of panel or touch panel is easy to implement so that the cost of touch panel is low, reliability is high.

Description of the drawings

Fig. 1 is the electrical connection schematic diagram of the specific embodiment of the invention one, two, three；

Fig. 2 is the electrical connection schematic diagram of the specific embodiment of the invention four and mode five；

Fig. 3 is the electrical connection schematic diagram of the specific embodiment of the invention six；

Fig. 4 is the structural schematic diagram of the specific embodiment of the invention seven；

Fig. 5 is the structural schematic diagram of the specific embodiment of the invention eight；

Fig. 6 is the structural schematic diagram of the specific embodiment of the invention nine；

Fig. 7 is the structural schematic diagram of the specific embodiment of the invention ten；

Fig. 8 is the electrical connection schematic diagram of the specific embodiment of the invention 11,12,13,14；

Fig. 9 is the structural schematic diagram of the specific embodiment of the invention 12；

Figure 10 is the structural schematic diagram of the specific embodiment of the invention 13；

Figure 11 is the structural schematic diagram of the specific embodiment of the invention 14；

Figure 12 is the structural schematic diagram of the specific embodiment of the invention 15；

Figure 13,13a are the structural schematic diagrams of the specific embodiment of the invention 16.

Specific implementation mode

Specific implementation mode one

Digital capacitive touch panel 100 as shown in Figure 1, including touch base plate 110 and touch-control circuit 130 etc..Touch-control The sensing electrode unit 120 of m × n array arrangement is provided on substrate 110, each sensing electrode unit is square block, and respectively With (121x × 121y, 121x × 122y ..., 121x × 12ny, 122x × 121y, 122x × 122y ..., 122x × 12ny, 123x×121y,123x×122y,…,123x×12ny,124x×121y,124x×122y,…,124x×12ny,…, 12mx × 121y, 12mx × 122y ..., 12mx × 12ny) indicate the position of each sensing electrode unit, m, n be greater than 2 it is just whole Number, each sensing electrode unit have separate extraction electrode line.Touch-control circuit 130 has touch-control driving source 131 and touch-control Signal detection circuit 132 etc..The extraction electrode line of each sensing electrode unit is connected respectively to the different pins of touch-control circuit 130 On.

All sensing electrode units in digital capacitive touch panel 100 apply identical touching signals, touch-control simultaneously For circuit in a manner of scanning, different moments select different sensing electrode units as detecting electrode, and each sensing electrode is detected in timesharing The variation of touching signals on unit.The process that touch-control circuit 130 carries out sensing electrode unit touch detection is as follows：Touch-control circuit Touch-control driving source 131 in 130 is by each extraction electrode line of sensing electrode cell array 120, while to all sensing electricity Pole unit applies identical touch-control pumping signal, the touching signals circuit for detecting 132 in touch-control circuit 130 in a manner of scanning, The touching signals on 120 each sensing electrode unit of sensing electrode cell array are detected line by line or by column, that is, often It is detecting electrode that one moment touching signals circuit for detecting, which selects a sensing electrode unit, and touch-control circuit 130 is to detect touch-control Position where the sensing electrode unit of signal is to form the digital capacitance touch surface of m × n touch point of identification by tactile position Plate.

All sensing electrode units in digital capacitive touch panel 100 apply identical touching signals simultaneously, work as behaviour Author's finger or other touch control objects are touched surveys electrode unit and adjacent or similar non-drawing by sense of touch survey electrode unit by sense of touch When in outlet, the electric current flowed out from operator's finger or other touch control objects, be by multiple touch control electrodes while providing, that is, by Sense of touch surveys electrode unit and the non-lead-out wire that electrode unit is surveyed by sense of touch provides electric current, each touch control electrode flow direction to touch control object simultaneously The size of finger or other touch control object electric currents is proportional to finger or other touch control objects touch the area of each touch control electrode；In finger or When the size of other touch control objects is much larger than the width of sensing electrode unit lead-out wire, finger or other touch control objects are touched and are surveyed by sense of touch The area of electrode unit, which will be much larger than, touches the non-area that electrode unit lead-out wire is surveyed by sense of touch, in this way relative to from by sense of touch Survey electrode unit on flow to finger or the electric current of other touch control objects, from it is non-by sense of touch survey electrode unit lead-out wire on flowed to finger or The electric current of other touch control objects can ignore, and avoid caused by touching the non-survey electrode unit lead-out wire by sense of touch Erroneous judgement.

Touch-control circuit 130 judges by tactile position, can also touching signals variable quantity or the maximum position of touching signals change rate It is set to by tactile position；Or to detect that touching signals or touching signals variable quantity or touching signals change rate are more than certain given threshold Position be by tactile position；Or to detect touching signals or touching signals variable quantity or touching signals change rate maximum and be more than The position of certain given threshold is by tactile position.When with detect touching signals variable quantity or change rate be more than certain given threshold When detection mode, touch-control circuit 130 allow simultaneously multi-point touch, become can multi-point touch digital capacitive touch panel face Plate.

Touch-control circuit detecting flows into the variation of touching signals or touching signals on sensing electrode unit, and detecting is electric current At least one of signal and voltage signal.

Touch-control circuit detecting flows into the variation of touching signals or touching signals on sensing electrode unit, and detecting is width At least one of value, time, phase, frequency signal and umber of pulse.

When in order to allow operator to touch digital capacitive touch panel, the variable quantity of touching signals is sufficiently large, dry to resist It disturbs and is convenient for measuring it is necessary to allow touching signals to have enough penetration powers, the frequency for the touching signals that touch-control circuit exports electrode wires It is not less than 20K Hz.

Specific implementation mode two

Digital capacitive touch panel 100 as shown in Figure 1, including touch base plate 110 and touch-control circuit 130 etc..Touch-control Be provided with the sensing electrode unit 120 of m × n array arrangement on plate 110, and respectively with (121x × 121y, 121x × 122y,…,121x×12ny,122x×121y,122x×122y,…,122x×12ny,123x×121y,123x× 122y,…,123x×12ny,124x×121y,124x×122y,…,124x×12ny,…,12mx×121y,12mx× 122y ..., 12mx × 12ny) indicate the position of each sensing electrode unit, m, n are greater than 2 positive integer, each sensing electrode unit With separate extraction electrode line.Touch-control circuit 130 has touch-control driving source 131 and touching signals circuit for detecting 132 etc.. The extraction electrode line of each sensing electrode unit is connected respectively on the different pins of touch-control circuit 130.

The sensing electrode unit adjacent to multiple positions on touch panel of touch-control circuit 130 applies touching signals simultaneously, and It selects different multiple sensing electrode units as different detecting electrodes, while detecting the touch-control letter for flowing into different detecting electrodes Number or touching signals variation.The process that touch-control circuit 130 carries out sensing electrode unit touch detection is as follows：Touch-control circuit Touch-control driving source 131 in 130, a moment in the touch detection period, to first row sensing electrode unit (121x × 121y, 121x × 122y ..., 121x × 12ny) each extraction electrode line simultaneously apply identical touch-control pumping signal, to remaining Sensing electrode unit do not apply touch-control pumping signal, the selection of touching signals circuit for detecting 132 in touch-control circuit 130 is applied with The first row sensing electrode unit of identical touching signals is n different detecting electrodes, while detecting touch-control on n detecting electrode The variation of signal is by tactile position to detect that touching signals change maximum sensing electrode unit；Subsequent time selection second Row sensing electrode unit (122x × 121y, 122x × 122y ..., 122x × 12ny) while applying touch-control and encourage and detect thereon The variation of touching signals；Touch-control circuit with n sensing electrode unit of X row be one group, while apply touch-control encourage and detect simultaneously The mode of the variation of touching signals on different sensing electrode units is surveyed, successively to all row sensing electrode units of touch panel It is detected, completes the detecting to the upper sensing electrode units of m × n on touch panel 100.

The sensing electrode unit adjacent to multiple positions on touch panel of touch-control circuit 130 applies touching signals simultaneously, and Select different multiple sensing electrode units as different detecting electrodes, when operator's finger or other touch control objects are touched and touched Sensing electrode unit and it is adjacent or it is similar it is non-by sense of touch survey electrode unit lead-out wire on when, from operator's finger or other touch The electric current that goes out of control logistics, be by multiple touch control electrodes while providing, that is, by sense of touch survey electrode unit and it is non-surveyed by sense of touch it is electric The lead-out wire of pole unit gives touch control object to provide electric current simultaneously, and each touch control electrode is flowing to the size of finger or other touch control object electric currents just Than the area for touching each touch control electrode in finger or other touch control objects；It is much larger than sensing electrode list in the size of sensing electrode unit When the width of first lead-out wire, finger or other touch control objects touch to be much larger than by the area of sense of touch survey electrode unit and touch non-quilt Sense of touch surveys the area of electrode unit lead-out wire, flows to finger or other touch control objects relative to from by sense of touch survey electrode unit in this way Electric current, flowed to the electric currents of finger or other touch control objects from non-surveyed by sense of touch on electrode unit lead-out wire and can be ignored, It avoids and is judged by accident caused by touching the non-survey electrode unit lead-out wire by sense of touch.

Touch-control circuit is phase to the amplitude, phase, frequency or coding of applied touching signals on each sensing electrode unit With, can also be that at least one in the amplitudes of applied touching signals, phase, frequency or coding is different.

The condition for judging to be touched position, can detect touching signals or touching signals variable quantity or touching signals change rate Maximum position is that may also detect that touching signals or touching signals variable quantity or touching signals change rate are more than by tactile position The position of certain given threshold is that can also detect touching signals or touching signals variable quantity or touching signals variation by tactile position The maximum and position more than certain given threshold of rate is by tactile position.

Touch-control circuit can also by detect touching signals on each sensing electrode unit or touching signals variable quantity or The difference of touching signals change rate, come calculate determine by sense of touch survey electrode unit between by tactile position.

Specific implementation mode three

The sensing electrode unit adjacent to multiple positions on touch panel of touch-control circuit 130 applies touching signals simultaneously, and It selects different multiple sensing electrode units as different detecting electrodes, while detecting the touch-control letter for flowing into different detecting electrodes Number or touching signals variation.The process that touch-control circuit 130 carries out sensing electrode unit touch detection is as follows：Touch-control circuit Touch-control driving source 131 in 130, a moment in the touch detection period, to first three columns sensing electrode unit (121x × 121y,121x×122y,…,121x×12ny,122x×121y,122x×122y,…,122x×12ny,123x×121y, 123x × 122y ..., 123x × 12ny) extraction electrode line simultaneously apply identical touch-control pumping signal, to remaining sensing Electrode unit does not apply touch-control pumping signal, and the selection of touching signals circuit for detecting 132 in touch-control circuit 130 is applied with identical touch The one row sensing electrode unit of centre for controlling signal is n different detecting electrodes, detects the change of touching signals on n detecting electrode Change, is by tactile position to detect that touching signals change maximum detecting electrode；Subsequent time selects other three row sensing electrode Unit (122x × 121y, 122x × 122y ..., 122x × 12ny, 123x × 121y, 123x × 122y ..., 123x × 12ny, 124x × 121y, 124x × 122y ..., 124x × 12ny) while applying touch-control excitation, and detect the upper touching signals of one row of centre Variation；Detection mode for first row or last row sensing electrode unit is：Touch-control circuit is simultaneously to first row and the The sensing electrode unit of two row applies identical touch-control excitation simultaneously, and detects the variation of touching signals on first row；Or to most The sensing electrode unit of latter row and the second last row applies identical touch-control and encourages simultaneously, and detects the upper touch-control letter of last row Number variation；Touch-control circuit so by column movably applies three row sensing electrode units touch-control excitation simultaneously, and detects centre The variation of the upper touching signals of one row, completes the detecting to the upper sensing electrode units of m × n on touch panel 100.

Specific implementation mode four

Digital capacitive touch panel 200 as shown in Figure 2, including touch base plate 210 and touch-control circuit 230 etc..Touch-control Be provided with the sensing electrode unit 220 of m × n array arrangement on substrate 210, and respectively with (221x × 221y, 221x × 222y ..., 22gx × 22hy ..., 22mx × 22ny) indicate position where each sensing electrode unit, g and h are respectively 1<g<m And 1<h<The positive integer of n, m, n are greater than 2 positive integer, and each sensing electrode unit has separate extraction electrode line；It touches Controlling circuit 230 has touch-control driving source 231 and touching signals circuit for detecting 232 etc..The extraction electrode line of each sensing electrode unit Connect touch-control circuit 230.

Digital capacitive touch panel 200 is that unit applies different touching signals simultaneously with row, on wherein one row Sensing electrode unit is different detecting electrode, and touch-control circuit detects the variation of touching signals on each detecting electrode simultaneously.Touch-control The process that circuit 230 carries out sensing electrode unit touch detection is as follows：At a certain moment of touch detection period, touch-control circuit Touch-control driving source 231 in 230 simultaneously to each sensing electrode unit of 22h row (221x × 22hy, 222x × 22hy ..., 22gx × 22hy ..., 22mx × 22hy) apply touch-control pumping signal 1,22h-1 row adjacent thereto, 22h+1 are arranged Each sensing electrode unit applies other touch-control pumping signal 2, does not apply touch-control pumping signal to remaining sensing electrode unit, Touch-control pumping signal 1 is identical as the phase and frequency of touch-control pumping signal 2 and amplitude is different, and touching signals circuit for detecting 232 is same When detect the variation that 22h arranges touching signals on each sensing electrode unit, be difference with each sensing electrode unit on 22h row Detecting electrode, it is by tactile position that touch-control circuit changes maximum sensing electrode unit with touching signals on different detecting electrodes； Or with touching signals variation on 22h row more than the sensing electrode for being located at centre in multiple sensing electrode units of certain given threshold Position is by tactile position.Subsequent time, each sense to 22h+1 row simultaneously of touch-control driving source 231 in touch-control circuit 230 It surveys electrode unit and applies touch-control pumping signal 1, applying other touch-control to each sensing electrode unit of 22h row, 22h+2 row swashs Signal 2 is encouraged, touch-control pumping signal is not applied to remaining sensing electrode unit, touching signals circuit for detecting 232 detects 22h+1 With the variation of touching signals on each sensing electrode unit on row, detection and the detecting deterministic process of last moment are repeated, number is completed The touch detection of word formula capacitance touching control panel m × n points.

Touch-control circuit is by detecting the touching signals flowed on each sensing electrode unit or touching signals variable quantity or touching The difference for controlling change rate signal surveys electrode unit position to determine by sense of touch.

The touch-control pumping signal 1 and touch-control pumping signal 2 being applied on the sensing electrode unit of different lines, can be width Value, phase, frequency are different from, and can also be one in amplitude, phase, frequency or two differences.

Judge by the condition of sense of touch survey electrode unit, it also can not be to detect that the touching signals variable quantity flowed through is maximum and surpasses The sensing electrode unit of certain given threshold is crossed to survey electrode unit by sense of touch, and to detect that the touching signals variable quantity flowed through is super The center for crossing first three big sensing electrode unit position of certain given threshold is position of touch, more smart to obtain identifying Thin, multi-touch digital capacitive touch panel.

Specific implementation mode five

Digital capacitive touch panel 200 as shown in Figure 2, including touch base plate 210 and touch-control circuit 230 etc..Touch-control The sensing electrode unit 220 of m × n array arrangement is provided on substrate 210, respectively respectively with (221x × 221y, 221x × 222y ..., 22gx × 22hy ..., 22mx × 22ny) indicate position where each sensing electrode unit, g and h are respectively 1<g< m,1<h<The positive integer of n, m, n are greater than 2 positive integer, and each sensing electrode unit has separate extraction electrode line；It touches Controlling circuit 230 has touch-control driving source 231 and touching signals circuit for detecting 232 etc..The extraction electrode line of each sensing electrode unit Connect touch-control circuit 230.

The sensing electrode unit adjacent to multiple positions on touch panel of touch-control circuit 230 applies touching signals simultaneously, only Select one of sensing electrode unit as detecting electrode, detecting flows into the change of the touching signals or touching signals of detecting electrode Change.The process that touch-control circuit 230 carries out each sensing electrode unit touch detection is as follows：Touch-control circuit is with scan mode to touch-control Sensing electrode unit on panel carries out touch detection, the touch-control driving source 231 in touch-control circuit 230, in the touch detection period In some moment, to a certain sensing electrode unit（22g×22h）Apply touching signals, and selects the sensing electrode unit For detecting electrode, touch-control circuit 230 is also pair adjacent with detecting electrode while applying touching signals to detecting electrode unit Eight non-detection electrodes（22g-1 × 22h-1,22g-1 × 22h, 22g-1 × 22h+1,22g × 22h-1,22g × 22h+1,22g + 1 × 22h-1,22g+1 × 22h, 22g+1 × 22h+1）Apply identical touching signals, the detecting detection of touch detection circuit 232 Electrode（22g×22h）The variation of upper touching signals, the variation with touching signals are more than that the sensing electrode unit of certain given threshold is By tactile position；Touch-control circuit subsequent time, selection（22g×22h+1）Sensing electrode unit is detecting electrode, to detecting electrode While applying touching signals and detect touching signals variation on the detecting electrode, also pair non-detection adjacent with detecting electrode is electric Pole applies identical touching signals；Touch-control circuit is detecting electrode selecting a certain sensing electrode unit, right with scan mode It is also pair adjacent with detecting electrode full while detecting electrode applies touching signals and detects on detecting electrode touching signals and change Non-detection electrode in portion's applies identical touching signals, completes the detecting to m × n sensing electrode unit on touch panel.

Specific implementation mode six

Digital capacitive touch panel 300 as shown in Figure 3, including touch base plate 310 and touch-control circuit 330 etc..Touch-control The sensing electrode unit 320 of m × n array arrangement is provided on plate 310, each sensing electrode unit has separate extraction Electrode wires, and respectively with (321 × 321 ..., 32i × 32j ..., 32g × 32h ..., 32m × 32n) indicate each sensing electrode list Position where first, wherein i, j, g, h is respectively 1<i<g,1<j<h,1<g<m,1<h<The positive integer of n, m, n are being greater than 3 just Integer；Touch-control circuit 330 has touch-control driving source 331 and touching signals circuit for detecting 332 etc..The extraction of each sensing electrode unit Electrode wires connect touch-control circuit 330.

Touch-control circuit synchronization selects different multiple sensing electrode units as different detecting electrodes, to inspection While surveying electrode application touching signals, also pair whole non-detection electrodes adjacent with detecting electrode apply identical touch-control letter Number, while detecting the variation of the touching signals or touching signals that flow into different detecting electrodes.In digital capacitive touch panel 300 All sensing electrode units subregion, while to one of each region sensing electrode as detecting electrode apply it is identical Touching signals, also pair sensing electrode unit adjacent with detecting electrode applies identical touch to the flow direction of touching signals simultaneously in order to control Signal is controlled, touch-control circuit detects the variation of touching signals on each region difference detecting electrode simultaneously, the touch-control electricity in the same area Road carries out touch control detection in a manner of scanning to each sensing electrode unit in region.Touch-control circuit 330 is to sensing electrode unit The process for carrying out touch detection is as follows：Touch panel 300 is divided to for two regions in left and right, touch-control circuit 330 while to touch surface Sensing electrode unit carries out touch detection, a certain moment one of in plate different zones, and the touch-control in touch-control circuit 330 swashs Source 331 is encouraged to the of touch panel left area（32i,32j）A sensing electrode unit applies touching signals, while also to touch-control The of panel right area（32g,32h）A sensing electrode unit applies touching signals, and touch-control circuit 330 selects two not same districts A sensing electrode unit in domain carries out touch control detection as two detecting electrodes；The flow direction of touching signals in order to control, touch-control Circuit 330 is simultaneously also pair and detecting electrode（32i,32j）The sensing electrode unit of 8 adjacent non-detections applies touching signals, Pair and detecting electrode（32g,32h）The sensing electrode unit of 8 adjacent non-detections applies touching signals；With detecting electrode （32i,32j）The sensing electrode unit of 8 adjacent non-detections is respectively（32i-1,32j-1）,（32i-1,32j）,（32i-1, 32j+1）,（32i,32j-1）,（32i,32j+1）,（32i+1,32j-1）,（32i+1,32j）,（32i+1,32j+1）, with detection Electrode（32g,32h）The sensing electrode unit of 8 adjacent non-detections is respectively（32g-1,32h-1）,（32g-1,32h）, （32g-1,32h+1）,（32g,32h-1）,（32g,32h+1）,（32g+1,32h-1）,（32g+1,32h）,（32g+1,32h+ 1）；Do not apply touching signals on remaining sensing electrode unit；332 simultaneous selection of touching signals circuit for detecting（32i,32j）, （32g,32h）Sensing electrode unit is detecting electrode, is applying touching signals to detecting electrode, and detect and flow on detecting electrode While touching signals change, touching signals also are applied to non-detection electrode；It is described apply touching signals non-detection electrode, be In each sensing electrode unit of touch panel, all or part of sensing electrode units adjacent with detecting electrode；Touch-control electricity Road is to detect that touching signals be more than position where the sensing electrode unit of certain given threshold are by tactile position, to which realization is more Point touch-control.

The speed that touch detection is accelerated to the mode that touch panel subregion is scanned, to the side of touch panel subregion Formula can be various.

Identical touching signals are applied simultaneously to the non-detection electrode of detecting electrode and periphery, control touching signals each Flow direction between sensing electrode unit improves the accuracy of touch control detection.

While applying touching signals to detecting electrode, to the amplitude, phase, frequency of the applied touching signals of non-detection electrode Rate can also be adjusted to different from the amplitude of the touching signals applied to detecting electrode, phase, frequency, more subtly to control The flow direction of touching signals processed.The touching signals apply to detecting electrode and the touching signals that are applied to non-detection electrode, can be with Amplitude, phase, frequency is different from, can also be one in amplitude, phase, frequency or two differences.

Touch detection circuit detects the touching signals on extraction electrode line, and detection can be voltage signal, can also be Current signal；Detection can be amplitude, can also be phase or frequency signal, detection can also be to sensing electrode unit The umber of pulse of charge and discharge period inside counting device record.

Judge by the condition of sense of touch survey electrode unit, it also can not be to detect that the touching signals variable quantity flowed through is maximum and surpasses The sensing electrode unit of certain given threshold is crossed to survey electrode unit by sense of touch, and to detect that the touching signals variable quantity flowed through is super The center for crossing the position of first three big sensing electrode unit of certain given threshold is position of touch, finer to obtain identifying , the digital capacitive touch panel of multi-touch.

Judge by the condition of sense of touch survey electrode unit, it also can be only to detect that the touching signals variable quantity flowed through is set more than certain The sensing electrode unit for determining threshold value is to survey electrode unit by sense of touch, and digital capacitive touch panel is allowed to allow multi-point touch simultaneously.

Specific implementation mode seven

Digital capacitive touch panel 400 as shown in Figure 4, the sensing electricity with array arrangement on touch base plate 410 Pole unit 450, each sensing electrode unit have independent extraction electrode line 431 ..., 43n, each sensing electrode unit and its draw Go out electrode wires to be located on the same electrode layer of 410 same side of touch base plate, and in the touch surface of touch base plate 410, respectively Sensing electrode unit is that diamond block is provided on the electrode layer where sensing electrode cell array 450 and its extraction electrode line Protective layer 420 makes sensing electrode unit and its extraction electrode line be not easy to be scratched, each sensing electrode element sides on touch base plate The edge of edge and extraction electrode line is broken line, and the angle of two adjacent straight lines is more than 8 ° and is less than 172 ° on broken line.

Each sensing electrode unit and its extraction electrode line are located in the touch surface of touch base plate, when finger or extraneous touch control object When touching touch panel, finger or touch control object may touch some sensing electrode unit and other not by tactile sensing electrode simultaneously On the extraction electrode line of unit, at this moment the sensing electrode unit and it is other not by sense of touch survey electrode unit extraction electrode line on Generate touching signals simultaneously, since the area of sensing electrode unit is far longer than the area of section of extraction electrode line, in finger or The size of other touch control objects much larger than sensing electrode unit and extraction electrode line width when, finger or other touch control objects touch by The area of sense of touch survey electrode unit, which will be much larger than, touches the non-area that electrode unit extraction electrode line is surveyed by sense of touch, finger or tactile Control object generated touching signals on by sense of touch survey electrode unit are far longer than finger or touch control object not by tactile sensing electrode Generated touching signals on the extraction electrode line of unit can be excluded by the method that touching signals are set up with threshold value because of hand Refer to or touch control object touches the touching signals generated on extraction electrode line, excludes extraction electrode line to the issuable shadow of touch-control It rings.

The touch base plate is flexible or rigid transparent substrate.

Specific implementation mode eight

Digital capacitive touch panel 500 as shown in Figure 5, with m × n array arrangement on touch base plate 510 Sensing electrode unit 550, each sensing electrode unit are square block, and each sensing electrode unit has independent extraction electrode line 531 ..., 53n, sensing electrode cell array and its extraction electrode line are located on the non-tactile face of touch panel, sensing electrode Cell array is tightly attached on the non-tactile face of touch base plate 510, and sensing electrode cell array forms sensing electrode layer, by each sensing With on extraction electrode line layer 560 similar in sensing electrode cell array, each sensing is electric for the extraction electrode line setting of electrode unit Pole unit is in from respective extraction electrode line on different electrode layers, each sensing electrode cell edges on touch base plate with draw Go out the edge of electrode wires for broken line, the angle of two adjacent straight lines is more than 8 ° and is less than 172 ° on broken line.In sensing electrode layer and extraction Insulating layer 540 is set between electrode wires layer 560, protective layer 570 is set on extraction electrode line layer 560.

The extraction electrode line of each sensing electrode unit is deviated to the extraction on one side of touch surface, sensing electrode from each sensing electrode Cell array shields the coupling of each extraction electrode line and finger or touch control object, reduces and is produced because touching on extraction electrode line Raw touching signals improve the accuracy of touch-control judgement.

The touch base plate is flexible or rigid transparent substrate.

Specific implementation mode nine

Capacitance digital touch panel 600 as shown in FIG. 6, including flat panel displays and touch-control sensing electrode unit Array 650, flat panel displays include display line scanning electrode wire group 610, display column signal electrode wires group 620, display Use thin film field effect transistor（TFT）Cell array 630, display pixel electrode unit array 640 and display public electrode 670, Display line scanning electrode wire group 610 includes 611,612 ..., 61m scanning electrode wire, display column signal electrode wires group 620 includes 621,622 ..., 62n bars electrode wires, m, n are greater than 2 natural number；The grid (Gate) of each display TFT units connects To display line scanning electrode wire, source electrode (Source) is connected to display column signal electrode wires, and drain electrode (Drain) is then connected to each aobvious Show pixel electrode unit, in the present specification in contrast source electrode is that lower current potential is source electrode with drain electrode；Display line scans Each electrode wires of electrode wires group 610, each electrode wires of display column signal electrode wires group 620 and the display connection of public electrode 670 are aobvious Show driving circuit 603.

Sensing electrode cell array 650 is on two mutually orthogonal directions at any one sensing electrode unit, All be respectively provided with no less than two, it is being arranged with respective spacing, mutually disjoint or the independent sensing electrode unit of non-overlapping copies, Each sensing electrode unit is block structure, and each sensing electrode unit covers integer display pixel cells, and integer can be big In the natural number equal to 1, each sensing electrode unit have independent extraction electrode line 661,662, ..., 66k, each sensing electrode Unit extraction electrode line forms extraction electrode line group 660, and the extraction electrode line of sensing electrode unit refers to being arranged in touch panel On connection sensing electrode unit to touch panel edge electric conduction polar curve；Each sensing electrode unit extraction electrode line connection is touched Control circuit 604.

The display of the digital capacitive touch panel 600 can be carried out at the same time with touch-control, can also timesharing progress；Simultaneously When progress, each electrode wires from display driver circuit 603 to the display line scanning electrode wire group 610 of display panel, display column signal Each electrode wires and display public electrode 670 of electrode wires group 620 export display drive signals；Touch-control circuit 604 gives each sense simultaneously It surveys electrode unit and applies touch-control pumping signal, and simultaneously or touching signals on each sensing electrode unit extraction electrode line are detected in timesharing Variation；When timesharing carries out, in display time interval, display line scanning electrode wire group 610 of the display driver circuit 603 to display panel Each electrode wires, each electrode wires of display column signal electrode wires group 620 and display public electrode 670 export display drive signals, In the touch-control period, display driver circuit 603 stops output display drive signals, and touch-control circuit 604 is simultaneously or each sensing is given in timesharing Electrode unit applies touch-control pumping signal, while also applying driving identical with touch-control pumping signal to display public electrode 670 Signal, and the variation of touching signals on each sensing electrode unit extraction electrode line is detected, to obtain on each sensing electrode unit Touching signals allow touch control type flat-panel display 600 to be provided simultaneously with display and touch-control to obtain the touch information on display panel Function.

Flat-panel monitor can also be active matrix liquid crystal display panel (AM LCD), organic light-emitting diode (OLED) display screen (OLED, AM OLED), the flat panel displays such as carbon nanotubes display screen, Electronic Paper (e-paper).

In attached drawing 6, fine line is display electrode line and circuit, and thick dashed line is touch-control electrode wires and circuit.

Specific implementation mode ten

Capacitance digital touch panel 600 as shown in FIG. 6, structure such as Fig. 7 of the section on flat display substrate Shown, flat-panel monitor includes upper and lower base plate 701,702, and display public electrode 770 is provided on the inner surface of upper substrate 701, It is provided with display line scanning electrode wire group on the inner surface of lower substrate 702, shows that column signal electrode wires group, display are imitated with thin film field Answer transistor（TFT）Cell array 730 and display pixel electrode unit array 740.The inner surface of the substrate refers to that tablet is aobvious Show one substrate of device towards the surface of another substrate, is bonded together with bonded adhesives 780 between the upper and lower base plate of flat-panel monitor, Upper and lower base plate is full of liquid crystal 790 with bonded adhesives area defined, and the upper and lower base plate of flat-panel monitor is display panel.

Touch-control sensing electrode unit array 750 is additionally provided on the inner surface of the upper substrate 701 of flat-panel monitor, it is each to feel Surveying electrode unit, there is independent extraction electrode line, projection covering integer of each sensing electrode unit on lower substrate to show picture Plain unit；Touch-control sensing electrode unit array 750 is tightly attached to the inner surface of upper substrate 701, and the setting of display public electrode 770 is being touched It controls in sensing electrode, there is insulating layer 7100 between touch-control sensing electrode 750 and display public electrode 770.

When the display of the digital capacitive touch panel 700 and touch-control are that timesharing carries out, in display time interval, display driving Circuit is aobvious to the display line scanning electrode wire group of display panel, display column signal electrode wires group and the display output of public electrode 770 Show drive signal；In the touch-control period, display driver circuit stops output display drive signals, and touch-control circuit is simultaneously or timesharing is to each Sensing electrode unit applies touch-control pumping signal, while also applying wave identical as touch-control pumping signal to display omnibus circuit 770 The drive signal of shape, identical frequency, same phase, and detect the change of touching signals on each sensing electrode unit extraction electrode line Change, to obtain the touching signals on each sensing electrode unit, to obtain the touch information on display panel, allows touch type flat Display 700 is provided simultaneously with display and touch function.

Specific implementation mode 11

Capacitance digital touch panel 600 as shown in FIG. 6, setting such as Fig. 8 of the section on flat display substrate Shown, flat-panel monitor includes upper and lower base plate 801,802, and display line scanning electrode wire is provided on the inner surface of upper substrate 801 Group, display column signal electrode wires group, display thin film field effect transistor（TFT）Cell array 830 and display pixel electrode list Element array 840 is provided with display public electrode 870 on the inner surface of lower substrate 802, is used between the upper and lower base plate of flat-panel monitor Bonded adhesives 880 bonds together, and is full of liquid crystal 890 in upper and lower base plate and bonded adhesives area defined, flat-panel monitor it is upper Lower substrate is display panel.

Touch-control sensing electrode unit array 850 is additionally provided on the inner surface of the upper substrate 801 of flat-panel monitor, it is each to feel Surveying electrode unit, there is independent extraction electrode line, each sensing electrode unit to cover integer display pixel cells；Touch-control sensing Electrode unit array 850 is tightly attached to the inner surface of upper substrate 801, display line scanning electrode wire group, display column signal electrode wires group, Display thin film field effect transistor（TFT）Cell array 830 and display pixel electrode unit array 840 are arranged in touch-control sensing On electrode unit array 850, touch-control sensing electrode unit array 850 and display line scanning electrode wire group, display column signal electrode Line group, display thin film field effect transistor（TFT）Have between cell array 830 and display pixel electrode unit array 840 Bucking electrode 8100.

The display of the digital capacitive touch panel 600 is that timesharing carries out with touch-control, in display time interval, display driving Circuit is aobvious to the display line scanning electrode wire group of display panel, display column signal electrode wires group and the display output of public electrode 870 Show drive signal, while shielded signal also is applied to bucking electrode 8100；In the touch-control period, it is aobvious that display driver circuit stops output Show drive signal, touch-control circuit is simultaneously or timesharing applies touch-control pumping signal to each sensing electrode unit, while also to shielding electricity Pole 8100 applies the drive signal with touch-control pumping signal same waveform, identical frequency, same phase, and detects each sensing electrode The variation of touching signals on unit extraction electrode line, to obtain the touching signals on each sensing electrode unit, to obtain display Touch information on panel allows touch control type flat-panel display 600 to be provided simultaneously with display and touch function.

Specific implementation mode 12

Capacitance digital touch panel 600 as shown in FIG. 6, setting such as Fig. 9 of the section on flat display substrate Shown, flat-panel monitor includes upper and lower base plate 901,902, and display public electrode 970 is provided on the inner surface of upper substrate 901, It is provided with display line scanning electrode wire group on the inner surface of lower substrate 902, shows that column signal electrode wires group, display are imitated with thin film field Answer transistor（TFT）Cell array 930 and display pixel electrode unit array 940.The inner surface of the substrate refers to that tablet is aobvious Show one substrate of device towards the surface of another substrate, is bonded together with bonded adhesives 980 between the upper and lower base plate of flat-panel monitor, Upper and lower base plate is full of liquid crystal 990 with bonded adhesives area defined, and the upper and lower base plate of flat-panel monitor is display panel.

Touch-control sensing electrode unit array 950 is provided on the outer surface of the upper substrate 901 of flat-panel monitor, it is each to sense There is electrode unit independent extraction electrode line, projection of each sensing electrode unit on lower substrate to cover integer display pixel Protective layer 9100 is arranged in unit on touch-control sensing electrode unit array 950, and the outer surface of the substrate refers to flat-panel monitor One substrate is backwards to the surface of another substrate.

The display of the digital capacitive touch panel 600 can be carried out at the same time with touch-control, can also timesharing progress；Simultaneously When progress, each electrode wires, display column signal electrode wires of the display driver circuit to the display line scanning electrode wire group of display panel Each electrode wires and display public electrode 970 of group export display drive signals；Touch-control circuit applies to each sensing electrode unit to be touched Control pumping signal；When timesharing carries out, in display time interval, display line scanning electrode wire group of the display driver circuit to display panel Each electrode wires, each electrode wires for showing column signal electrode wires group and display public electrode 970 export display drive signals, in touch-control Period, display driver circuit stop output display drive signals, and touch-control circuit applies touch-control excitation letter to each sensing electrode unit Number, while also applying the driving with touch-control pumping signal same waveform, identical frequency, same phase to display public electrode 970 Signal, touch-control circuit detect the variation of touching signals on each sensing electrode unit extraction electrode line, to obtain each sensing electrode list Touching signals in member allow touch control type flat-panel display 600 to be provided simultaneously with display to obtain the touch information on display panel With touch function.

Touch-control circuit applies the mode of touch-control pumping signal to each sensing electrode unit, can be simultaneously to all sensings Electrode unit all applies, and timesharing can also be applied to each sensing electrode unit in a manner of scanning.

Specific implementation mode 13

Capacitance digital touch panel 600 as shown in FIG. 6, setting such as Figure 10 of the section on flat display substrate Shown, flat-panel monitor includes upper and lower base plate 1001,1002, and display public electrode is provided on the inner surface of upper substrate 1001 1070, display line scanning electrode wire group, display column signal electrode wires group, display are provided on the inner surface of lower substrate 1002 with thin Film field-effect transistor（TFT）Cell array 1030 and display pixel electrode unit array 1040.The inner surface of the substrate is Refer to one substrate of flat-panel monitor towards the surface of another substrate, is bonded with bonded adhesives 1080 between the upper and lower base plate of flat-panel monitor Together, it is full of liquid crystal 1090 in upper and lower base plate and bonded adhesives area defined, the upper and lower base plate of flat-panel monitor is display Panel.

It is provided with bucking electrode 10100 on the outer surface of the upper substrate 1001 of flat-panel monitor, in bucking electrode 10100 On be provided with touch-control sensing electrode unit array 1050, each sensing electrode unit has independent extraction electrode line, each to sense Projection of the electrode unit on lower substrate covers integer display pixel cells, and the outer surface of the substrate refers to flat-panel monitor One substrate is backwards to the surface of another substrate, and bucking electrode 10100 connect touch-control circuit with each touch-control sensing electrode unit, in touch-control Protective layer 10110 is set in sensing electrode cell array 1050.

The display of the digital capacitive touch panel 600 can be carried out at the same time with touch-control, can also timesharing progress；Simultaneously When progress, the display line scanning electrode wire group, display column signal electrode wires group and display of display driver circuit to display panel are public Common electrode 1070 exports display drive signals；It is also right while touch-control circuit is to each sensing electrode unit application touch-control pumping signal Bucking electrode 10100 applies shielded signal；When timesharing carries out, in display time interval, display of the display driver circuit to display panel Row scanning electrode wire group, display column signal electrode wires group and display public electrode 1070 export display drive signals, in touch-control Section, display driver circuit stop output display drive signals, and touch-control circuit applies touch-control pumping signal to each sensing electrode unit, Also apply the drive signal with touch-control pumping signal same waveform, identical frequency, same phase to bucking electrode 10100 simultaneously； Touch-control circuit detects the variation of touching signals on each sensing electrode unit extraction electrode line, to obtain on each sensing electrode unit Touching signals allow touch control type flat-panel display 600 to be provided simultaneously with display and touch-control to obtain the touch information on display panel Function.

Flat-panel monitor can also be active matrix liquid crystal display panel (AM LCD), organic light-emitting diode (OLED) display screen (OLED, AM OLED), the active tablet such as carbon nanotubes display screen, Electronic Paper (e-paper), plane conversion active matrix liquid crystal display panel (IPS) is aobvious Show device.

Specific implementation mode 14

Capacitance digital touch panel 1100 as shown in figure 11, including flat-panel monitor and touch panel 1160, tablet Display is IPS displays, including upper and lower base plate 1110,1120, and display line scanning is provided on the inner surface of lower substrate 1120 Electrode wires group, display column signal electrode wires group, display thin film field effect transistor（TFT）Cell array, display pixel electrode The display public electrode of cell array and strip is indicated with 1140 jointly, and bonded adhesives is used between the upper and lower base plate of flat-panel monitor 1180 bond together, and the outer surface of upper substrate 1110 has bucking electrode 1190, is surrounded in upper and lower base plate and bonded adhesives Region is full of liquid crystal 1130, and the inner surface of the upper and lower base plate refers to the table that flat-panel monitor upper and lower base plate is in contact with liquid crystal The upper and lower base plate in face, flat-panel monitor is display panel, each electrode wires of display line scanning electrode wire group, display column signal electrode Each electrode wires of line group, display public electrode connect display driver circuit with bucking electrode.

Capacitance digital touch panel is using the upper substrate of display panel as touch base plate, sensing electrode unit and its extraction electricity Polar curve is arranged on the outer surface of the upper substrate of display panel.It is provided on the outer surface of the upper substrate 1110 of flat-panel monitor The sensing electrode unit 1160 of array arrangement, each sensing electrode unit is arranged in bucking electrode 1190 on bucking electrode 1190 With independent extraction electrode line, each sensing electrode unit is square block, and each of sensing electrode cell array 1160 arranges Each sensing electrode sequence of unit arranges, and each sensing electrode unit on each row mutually staggers；In order to which user not touch directly Sensing electrode unit is touched, layer protective layer 1170 is set again on sensing electrode layer 1160, each sensing electrode unit connects touch-control Circuit.

The display of capacitance digital touch panel 1100 can be carried out with touch-control with timesharing, can also be carried out at the same time；Timesharing into When line mode, in display time interval, each electrode wires of the display driver circuit to the display line scanning electrode wire group of display panel, display Each electrode wires and public electrode of column signal electrode wires group export display drive signals, while applying to bucking electrode 1190 and shielding Signal；In the touch-control period, display driver circuit stops exporting display drive signals to each show electrode, and touch-control circuit is to each sensing Electrode unit applies touch-control pumping signal, and display driver circuit simultaneously also applies and touch-control pumping signal phase bucking electrode 1190 Same drive signal, and each sensing electrode unit touch information is detected, to obtain the touch information on display panel；It is carried out at the same time When mode, each electrode wires, display column signal electrode wires of the display driver circuit to the display line scanning electrode wire group of display panel Each electrode wires and public electrode of group export display drive signals, and touch-control circuit applies touch-control excitation letter to each sensing electrode unit Number, and each sensing electrode unit touch information is detected, to obtain the touch information on display panel, while display driver circuit pair Bucking electrode 1190 applies identical touch-control pumping signal, and the display time interval of touch control type flat-panel display 700 and touch-control period are not Disconnected cycle, allows touch control type flat-panel display 700 to be provided simultaneously with display and touch function.

Specific implementation mode 15

Capacitance digital touch panel 1200 as shown in figure 12, including flat-panel monitor and touch panel 1260, tablet Display is IPS displays, including upper and lower base plate 1210,1220, and display line scanning is provided on the inner surface of lower substrate 1220 Electrode wires group, display column signal electrode wires group, display thin film field effect transistor（TFT）Cell array, display pixel electrode The display public electrode of cell array and strip is indicated with 1240 jointly, and bonded adhesives is used between the upper and lower base plate of flat-panel monitor 1280 bond together, and are full of liquid crystal 1230, the interior table of the upper and lower base plate in upper and lower base plate and bonded adhesives area defined Face refers to the surface that flat-panel monitor upper and lower base plate is in contact with liquid crystal, and the upper and lower base plate of flat-panel monitor is display panel, is shown Show each electrode wires of row scanning electrode wire group, show that each electrode wires of column signal electrode wires group connect display with display public electrode Driving circuit.

Capacitance digital touch panel is using the upper substrate of display panel as touch base plate, the shielding electricity of above substrate outer surface As sensing electrode unit, bucking electrode is cut into several independent small electrode units for pole, several independent small electrode units with Array format is distributed on the outer surface of upper substrate, on two mutually orthogonal directions at any one small electrode unit, all Be respectively provided with no less than two, it is being arranged with respective spacing, mutually disjoint or the independent small electrode unit of non-overlapping copies；It is each small Electrode unit has independent extraction electrode line.It is provided with array arrangement on the outer surface of the upper substrate 1210 of flat-panel monitor Sensing electrode unit 1260, it is square that each sensing electrode unit, which has independent extraction electrode line, sensing electrode unit 1260, Each sensing electrode sequence of unit arranged of shape block, sensing electrode cell array 660 arranges, the sensing electrode unit phase on each row Mutually it is staggered；In order to allow user should not direct touch sensing electrode unit, one layer of protection is set again on sensing electrode layer 1260 Layer 1270, each sensing electrode unit connect touch-control circuit.

The display of capacitance digital touch panel 1200 is that timesharing carries out with touch-control, in display time interval, display driving electricity Each electrode wires of the display line scanning electrode wire group of road direction display panel, each electrode wires for showing column signal electrode wires group and public Electrode exports display drive signals, and touch-control circuit applies shielded signal, each sensing electrode unit to all sensing electrode units As bucking electrode；In the touch-control period, display driver circuit stops exporting display drive signals, touch-control circuit to each show electrode Apply touch-control pumping signal to each sensing electrode unit, and detect each sensing electrode unit touch information, to obtain display panel On touch information；The display time interval of touch control type flat-panel display 1200 and touch-control period constantly recycle, and make touch type flat aobvious Show that device 1200 is provided simultaneously with display and touch function.

Specific implementation mode 16

Capacitance digital touch panel 1300 as shown in fig. 13 that, as depicted in fig. 13 a, including active tablet is aobvious for side view Show that device and touch-control sensing electrode unit array 1350, display panel have lower substrate 1302 and upper substrate 1301.Upper substrate 1301 Inner surface on have display public electrode；The inner surface of lower substrate 1302 has display line scanning electrode wire group 1310, display Column signal electrode wires group 1320, the display thin film field effect transistor of (m × n)（TFT）Cell array 1330 and (m × n) Display pixel electrode unit array 1340, display line scanning electrode wire group 1310 include 1311,1312 ..., 131m items scanning electricity Polar curve, display column signal electrode wires group 1320 includes 1321,1322 ..., 132n bars electrode wires, m, n are greater than 2 nature Number；The drain electrode (Drain) of each display TFT units and 1340 each unit of display pixel electrode unit array are separately connected, grid (Gate) 1310 each electrode wires of row scanning electrode wire group are respectively connected to, source electrode (Source) is respectively connected to column signal electrode wires 1320 each electrode wires of group, each electricity of each electrode wires and display column signal electrode wires group 1320 of display line scanning electrode wire group 1310 Polar curve is separately connected display driver circuit 1303, is pasted together with glue 1380 between two substrates, two substrates are enclosed with glue At region have liquid crystal 1390.

Display public electrode is made of public electrode cell array 1350, and each public electrode unit is block structure, Each public electrode unit covering integer display pixel cells 1330, integer may be greater than the natural number equal to 1, each small public affairs Common-battery pole unit have independent extraction electrode line 1351 ..., 135k, each extraction electrode line connects gating circuit 1305, gating Circuit 1305 connects display driver circuit 1303 and touch-control circuit 1304.

The operation principle of capacitance digital touch panel 1300 is as follows：

In display time interval, each electricity of 1303 transmitting display signal therefor of display driver circuit to display line scanning electrode wire group 1310 Polar curve, vertical direction show in each electrode wires of column signal electrode wires group 1320 that gating circuit 1305 makes each public electrode unit It is connected to simultaneously with display driver circuit 1303, simultaneous transmission shows signal, each in the work of capacitance digital touch panel 1300 Public electrode unit is incorporated as display public electrode, and simultaneous transmission shows common signal.

In the touch-control period, display driver circuit 1303 is not to show electrode 1310,1320 transmitting display signal therefors, gating circuit 1305 make each public electrode unit be connect with touch-control circuit 1304, simultaneous transmission touching signals on each public electrode unit, touch-control Circuit 1304 is simultaneously or timesharing detects the variations of touching signals on each public electrode unit, with detect touching signals variable quantity or The maximum public electrode unit of change rate is by tactile position, and capacitance digital touch panel 1300 realizes touch function, each public Electrode unit becomes the sensing electrode unit that can sense touch-control, and display public electrode and the touch-control sensing electrode of display panel close Two be one.

The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and it cannot be said that The specific implementation of the present invention is confined to these explanations.For those of ordinary skill in the art to which the present invention belongs, exist Under the premise of not departing from present inventive concept, a number of simple deductions or replacements can also be made, all shall be regarded as belonging to the present invention's Protection domain.

Claims

1. a kind of digital capacitive touch panel, including touch base plate and touch-control circuit, touch-control circuit have touch-control driving source and Touching signals circuit for detecting；It is characterized in that：

Sensing electrode cell array is provided on touch base plate, each sensing electrode unit has independent extraction electrode line, respectively The extraction electrode line of sensing electrode unit connects touch-control circuit, wherein the touching signals on each extraction electrode line and its variation Whether corresponding to the sensing electrode unit touch of corresponding position, it is only necessary to carry out a touch detection and be assured that touch-control；

The sensing electrode cell array refers on two mutually orthogonal directions at any one sensing electrode unit, All be respectively provided with no less than two, it is being arranged with respective spacing, mutually disjoint or the independent sensing electrode unit of non-overlapping copies；

The extraction electrode line of the sensing electrode unit refers to the connection sensing electrode unit that is arranged on touch panel to touch-control The electric conduction polar curve on panel edges edge；

In the period of touch-control circuit work, there is an at least moment, touch-control driving source to be applied simultaneously to multiple sensing electrode units Touching signals, touching signals circuit for detecting are added to select wherein at least one sensing electrode unit for detecting electrode；

The detecting electrode refers to while being applied with touching signals to the sensing electrode unit, and also detecting flows into sensing electricity The sensing electrode unit of touching signals or the touching signals variation of pole unit；

The digital capacitive touch panel, be using the upper substrate of display panel as touch base plate, sensing electrode cell array and Its extraction electrode line is arranged on the inner surface of display panel upper substrate, and the upper substrate of the display panel refers to display panel Closer to the substrate of user side in two plate bases, the upper substrate inner surface refers to table of the upper substrate towards another substrate Face；Sensing electrode unit and its extraction electrode line are between display public electrode and upper substrate inner surface, show public electrode There is insulating layer between sensing electrode unit and its extraction electrode line；The display of the digital capacitive touch panel and touch-control That timesharing carries out, while applying touching signals to the sensing electrode unit, also to the display public electrode, apply with The drive signal of touch-control pumping signal same waveform, identical frequency, same phase；

Alternatively, the digital capacitive touch panel, is the above substrate inner surface using the upper substrate of display panel as touch base plate Display public electrode or the bucking electrode of upper substrate outer surface be used as sensing electrode unit, display public electrode or bucking electrode Several independent small electrode units are cut into, each small electrode unit has independent extraction electrode line；Each small electrode unit draws Go out electrode wires and display driver circuit and touch-control circuit are separately connected by gating device, display is carried out with touch-control timesharing；It is showing Drive the period, the gating device makes small electrode unit be connected to display driver circuit, application display signal or shielded signal to Small electrode unit；In the touch detection period, the gating device makes small electrode unit be connected to touch-control circuit, applies touching signals To small electrode unit.

2. digital capacitive touch panel according to claim 1, it is characterised in that：

The extraction electrode line of each sensing electrode unit connection touch-control circuit, is to be connected to the different leading foot of touch-control circuit On.

3. digital capacitive touch panel according to claim 1, it is characterised in that：

The touch-control driving source applies touching signals simultaneously to multiple sensing electrode units, refers to touch-control driving source pair two or more Apply touching signals simultaneously in two or all sensing electrode units；Multiple sensing electrode units for being applied with touching signals exist Position on touch panel is adjacent to each other；The position sensing electrode unit adjacent to each other, be all of colleague or/and same column or Section senses electrode unit.

4. digital capacitive touch panel according to claim 1, it is characterised in that：

The touching signals circuit for detecting selects wherein at least one sensing electrode unit for detecting electrode, refers to detecting electrode While applying touching signals, and detect touching signals variation on inflow detecting electrode unit, also non-detection electrode is applied and is touched Control signal；The non-detection electrode for applying touching signals is all or part of sensing electrode units for connecting touch-control circuit.

5. digital capacitive touch panel according to claim 1, it is characterised in that：

The amplitude, frequency, phase of applied touching signals or coding are identical on each sensing electrode unit, or are applied Add in the amplitudes of touching signals, frequency, phase or coding at least one of be different.

6. digital capacitive touch panel according to claim 1 or 4, it is characterised in that：

The touch-control circuit selection detecting electrode is carried out in a manner of scanning, and different moments select different sensing electrode units As detecting electrode, timesharing detecting flows into the variation of the touching signals or touching signals of different detecting electrodes.

7. digital capacitive touch panel according to claim 1 or 4, it is characterised in that：The touch-control circuit is the same as the moment It carves, selects different multiple sensing electrode units as different detecting electrodes, while detecting and flowing into touching for different detecting electrodes Control the variation of signal or touching signals.

8. digital capacitive touch panel according to claim 1, it is characterised in that：

The touch-control circuit detecting flows into the variation of touching signals or touching signals on sensing electrode unit, and detecting is electric current At least one of signal and voltage signal；The current signal or voltage signal of the detecting are amplitude, time, phase, frequency At least one of signal and umber of pulse.

9. digital capacitive touch panel according to claim 1, it is characterised in that：

The touch-control circuit, by detecting the touching signals flowed on each sensing electrode unit or touching signals variable quantity or touching The difference for controlling change rate signal, surveys electrode unit, or determine being touched for sensing electrode unit by calculating to determine by sense of touch Position.

10. digital capacitive touch panel according to claim 9, it is characterised in that：

The touch-control circuit is to detect touching signals or touching signals variable quantity or the maximum position of touching signals change rate For by tactile position, or to detect that touching signals or touching signals variable quantity or touching signals change rate are more than certain given threshold Position is by tactile position, or to detect that touching signals or touching signals variable quantity or touching signals change rates are maximum and more than certain The position of given threshold is by tactile position.

11. digital capacitive touch panel according to claim 1, it is characterised in that：

Sensing electrode unit on the touch base plate and its extraction electrode line are the non-tactile faces in touch base plate, or In touch surface in touch base plate.