CN101122838B - Active touch control panel display - Google Patents
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- CN101122838B CN101122838B CN200610115269XA CN200610115269A CN101122838B CN 101122838 B CN101122838 B CN 101122838B CN 200610115269X A CN200610115269X A CN 200610115269XA CN 200610115269 A CN200610115269 A CN 200610115269A CN 101122838 B CN101122838 B CN 101122838B
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Abstract
The present invention relates to a touch control flat panel display, specifically an active touch control flat panel display. A line scanning electrode and a column signal electrode of the active flat panel display are metallic electrode wires with little resistance. Touch control signals cannot be input through only one electrode of the display. And the discrepancy between the touch control signals of the two ends of the electrode can no not be detected so as to locate the position of the touch control object on the touch control detecting electrode. The present invention uses part of the electrode wire of TFT array glass substrate as a touch control electrode and an electrode parallel with the touch control electrode on the glass substrate as a touch control exciting electrode. When the touch control object touches the display, the touch control detecting circuit detects the touch control signals and locates the position of the touch control object on the detecting electrode. The present invention is intended to provide an active touch control flat panel display and locate the position of the touch control object on the touch control electrode through scrollbars.
Description
Technical field
The present invention relates to touch control type flat-panel display, be specifically related to active touch control panel display.
Background technology
The flat-panel monitor that has touch controllable function at present constitutes with parts such as display screen, display driver, touch screen, touching signals detecting device, backlights, touch screen has resistance-type, condenser type, electromagnetic type, ultrasonic type and the photo-electric etc. of using different sensing principles, and display screen has TN/STN LCDs, TFT LCDs, OLED display screen, PDP display screen, CNT display screen etc.The flat-panel monitor that has touch screen is that the touch screen of split and display screen is stacked together, detects the planimetric position of touch point by display screen, makes the cursor on the display screen follow the location, touch point again.The stacked touch control type flat-panel display thickening that makes of touch screen and display screen becomes heavy cost increase; When touch screen placed the display screen front, the reflection that the touch screen sensing electrode produces can make again and show uneven Uniform and show decrease of contrast under strong ambient light environment, influence display effect.Trackpad and display screen being become one, make the flat-panel monitor with touch controllable function become more frivolous, is the direction that people make great efforts.
The integration mode of display screen and Trackpad is mainly stacked and inserted two kinds, stacked is to place Trackpad before the end face of display screen or after the bottom surface, display screen and Trackpad are independently born respectively and are shown and the touch-control task, Chinese patent (CN20010141451, MINXIANG INDUSTRY CO LTD, 2001), Finnish patent (FI19960002692, NOKIA MOBILE PHONES LTD, 1996), Jap.P. (JP19850161986, CANON KK, 1985), (JP19900095167, NIPPONTELEGRAPH ﹠amp; TELEPHONE, 1990), (JP19930306286, PFU LTD, 1993), (JP19980014850, NISSHA PRINTING, 1998), (JP19990142260, MIMAKIDENSHI BUHIN KK, 1999), Korean Patent (KR20000084115, YU HWAN SEONG; LIMJOO-SOO, 2000), (KR20020083301, BANG YONG IK; Etc., 2002), Taiwan patent (TW556141, AU OPTRONICSCORP, 2002), United States Patent (USP) (US6215476, APPLE COMPUTER, 2001), (US20030347603, TOPPOLY OPTOELECTRONICSCORP, 2003) etc. multinomial patent has all proposed resistance-type, condenser type, the Trackpad of electromagnetic type and the various stacked scheme of display screen, but Trackpad places before the display screen end face, can influence the display effect such as brightness, contrast, sharpness, color of demonstration; The electromagnetic touch-control plate places after the display screen bottom surface, makes the contraposition difficulty of touchpad electrodes and display screen electrode, also can influence the brightness of demonstration; And stacked method also can increase the integral thickness of display; The complexity of structure can cause reliability decrease again, and by the complexity of the complexity of production run and assembling also to making cost higher.
Inserted is that touch sensing is embedded in the display screen, at the other sensor (mostly being optical sensor) of settling of each display element, connect display element and sensor with dual electrode, difference transmitting and displaying drive signal and touch-control detectable signal, Korean Patent (KR20030019631, JUNGYONG CHAE; YANG DONG KYU, 2003), (KR20030077574, CHOI JOON-HOO; JOO IN-SOO, 2003), Deutsche Bundespatent (GB0304587.9, SHARP, 2003), United States Patent (USP) (US19970955388, SONY ELECTRONICS INC, 1997), (US19980135959, IBM, 1998), (US20030721129, EASTMAN KODAK CO, 2003) etc. multinomial patent has also proposed inserted scheme respectively, but touch sensing is inlaid into the manufacturing process complexity of display screen and dual electrode, the electrode outlet line difficulty, thereby also to making the cost height, and also may produce the mutual interference mutually of display drive signals and touch-control detectable signal.
Also the someone attempts to survey touch-control by the method for electric capacity between the box of surveying LCDs, as Taiwan patent (TW20020116058, LEE YU-TUAN, 2002), changes in capacitance is to cause that by touch-control pressure the thick variation of box produces between box, support between box makes the very big strength of the thick needs of the box that must change LCDs, and the box that changes LCDs is thick must influence demonstration, the dielectric anisotropy of liquid crystal material makes that again electric capacity changes with showing between box, get rid of that changes in capacitance can influence demonstration again between the box that the liquid crystal material dielectric anisotropy causes, so the method that electric capacity is surveyed touch-control between the box of this detection LCDs is worthless.
Find out a kind of scheme that solves above-mentioned complex structure, the manufacturing process difficulty is big, production run is complicated and assembles challenge, improve reliability, improve display effect, compressed thickness, reduce cost, realize that with succinct method the flat-panel monitor touch controllable function is necessary.
Application number is that the single-layer electrodes that one of proposed to utilize in the display screen line scan electrode of quadrature and the column signal electrode of 2005101244714 patent is as touch-control electrode senses touch-control, allow and draw out pin at two ends as the line scanning electrode or the column signal electrode of touch-control electrode, by detecting the difference of touch-control electrode two ends touching signals, determine the position of touch point on the touch-control electrode.But the method for 2005101244714 patents is the difference that detect touch-control electrode two ends touching signals, and requiring will have suitable bulk resistor value as the line scanning electrode or the column signal electrode of touch-control electrode.For flat panel displays line scanning electrode and column signal electrode all is metal electrode lines, and the bulk resistor value is very little, is not suitable for the method with 2005101244714 patents.
Summary of the invention
The present invention aims to provide a kind of active touch control panel display, with the position of touch point on touch detection electrodes, method location of slider bar.
Technical thought of the present invention is: allow the multiplexing display screen electrode of display drive signals and touch-control detectable signal.On glass at the active panel display screen tft array substrate, have the scanning electrode wire that extremely links to each other with the Gate of TFT, the signal electrode line, the ground-electrode line that link to each other with source electrode or the drain electrode of TFT; Another plate base of display screen is on glass to have color filter film, latticed light black film layer and the public electrode covered.With tft array substrate partial parallel electrode wires on glass as touch detection electrodes, with remainder parallel on the base plate glass with touch detection electrodes or all electrode wires as the touch-control exciting electrode.Touch detection electrodes connects the touch control detection circuit, and the touch-control exciting electrode connects the touch-control driving source.The touch-control driving source sends touching signals to the touch-control exciting electrode, and the touch-control exciting electrode sends touching signals again on touch detection electrodes, the touch control detection electric circuit inspection touching signals that links to each other with touch detection electrodes.When finger or touch control object such as pointer during, produce coupling capacitance between touch control object and touch-control exciting electrode and touch detection electrodes near display screen; Touching signals part on the touch-control exciting electrode spills from touch control object Vent, and the touching signals that touch detection electrodes is received changes; The variation of touch control detection electric circuit inspection touching signals on the touch detection electrodes is to detect the size of touching signals, the position of touch control object on touch detection electrodes, location.
The touch control detection circuit can be located the position of touch control object on touch detection electrodes only from the single-ended detection touching signals of touch detection electrodes to the detection of touching signals on the touch detection electrodes; Also can detect the touch control detection touching signals,, locate the position of touch control object on touch detection electrodes with the difference of two ends touching signals from the two ends of touch detection electrodes.
Technical solution of the present invention is: the one group parallel pole line on glass to tft array substrate, get wherein the partial electrode line in the scan round mode and organize remaining part or all of electrode wires of parallel pole line as the touch-control exciting electrode with this as touch detection electrodes.The one-sided termination of touch detection electrodes connects the touch control detection circuit, and the touch-control exciting electrode connects the touch-control driving source.When finger or touch control object such as pointer during near display screen, when the touch control object position is arrived in touch detection electrodes scan round, produce coupling capacitance between touch control object and touch-control exciting electrode and touch detection electrodes, touching signals on touch-control exciting electrode part spills from touch control object Vent, the variation of touch control detection electric circuit inspection touching signals on the touch detection electrodes.To detect the touch detection electrodes that touching signals changes, the location is by the touch-control electrode; Detecting the size of touching signals, the location touch control object is by the position on the touch-control electrode; Thereby determine the position of touch of touch control object on display screen.When detecting touching signals change on many touch detection electrodes, changing maximum electrode with touching signals is the touch-control anchor point, or to detect centre positions that touching signals changes electrode with these be the touch-control anchor point.
Another kind of scheme is: the one group parallel pole line on glass to tft array substrate, and get wherein the partial electrode line in the scan round mode and organize remaining part or all of electrode wires of parallel pole line as the touch-control exciting electrode with this as touch detection electrodes.The termination, both sides of touch detection electrodes all connects the touch control detection circuit, and the touch-control exciting electrode connects the touch-control driving source.When finger or touch control object such as pointer during near display screen, when the touch control object position is arrived in touch detection electrodes scan round, produce coupling capacitance between touch control object and touch-control exciting electrode and touch detection electrodes, touching signals on touch-control exciting electrode part spills from touch control object Vent, the variation of touch control detection electric circuit inspection touching signals on the touch detection electrodes.To detect the touch detection electrodes that touching signals changes, the location is by the touch-control electrode; With the difference of termination, detected touch detection electrodes both sides touching signals, the location touch control object is by the position on the touch-control electrode; Thereby determine the position of touch of touch control object on display screen.When detecting touching signals change on many touch detection electrodes, changing maximum electrode with touching signals is the touch-control anchor point, or to detect centre positions that touching signals changes electrode with these be the touch-control anchor point.
More than in two kinds of schemes, the touch-control exciting electrode parallel with touch detection electrodes can allow the one-sided electrode of touch detection electrodes as the touch-control exciting electrode, also can allow the electrode of touch detection electrodes both sides all as the touch-control exciting electrode.
Another scheme is: the one group parallel pole line on glass to tft array substrate, get wherein the partial electrode line as touch detection electrodes, with adjacent partial electrode line as the touch-control exciting electrode, adjacent again partial electrode line is again as touch detection electrodes, adjacent again partial electrode line is arranged touch control detection and exciting electrode again as the touch-control exciting electrode in this alternate mode that circulates.Each one-sided termination of organizing touch detection electrodes connects the touch control detection circuit simultaneously, and each is organized the touch-control exciting electrode and connects the touch-control driving source simultaneously.When finger or touch control object such as pointer during near display screen, produce coupling capacitance between touch control object and certain group touch-control exciting electrode wherein and touch detection electrodes, touching signals part on the touch-control exciting electrode spills from touch control object Vent, the touch control detection circuit detects each group touch detection electrodes simultaneously, detects the variation of touching signals on certain group touch detection electrodes.To detect the touch detection electrodes that touching signals changes, the location is by the touch-control electrode; Detecting the size of touching signals on the touch detection electrodes that touching signals changes, the location touch control object is by the position on the touch-control electrode; Thereby determine the position of touch of touch control object on display screen.When detecting touching signals change on many touch detection electrodes, changing maximum electrode with touching signals is the touch-control anchor point, or to detect centre positions that touching signals changes electrode with these be the touch-control anchor point.
Another scheme is again: the one group parallel pole line on glass to tft array substrate, get wherein the partial electrode line as touch detection electrodes, with adjacent partial electrode line as the touch-control exciting electrode, adjacent again partial electrode line is again as touch detection electrodes, adjacent again partial electrode line is arranged touch control detection and exciting electrode again as the touch-control exciting electrode in this alternate mode that circulates.Each termination, both sides of organizing touch detection electrodes all connects the touch control detection circuit simultaneously, and each is organized the touch-control exciting electrode and connects the touch-control driving source simultaneously.When finger or touch control object such as pointer during near display screen, produce coupling capacitance between touch control object and certain group touch-control exciting electrode wherein and touch detection electrodes, touching signals part on the touch-control exciting electrode spills from touch control object Vent, the touch control detection circuit detects each group touch detection electrodes simultaneously, detects the variation of touching signals on certain group touch detection electrodes.To detect the touch detection electrodes that touching signals changes, the location is by the touch-control electrode; With the difference of termination, detected touch detection electrodes both sides touching signals, the location touch control object is by the position on the touch-control electrode; Thereby determine the position of touch of touch control object on display screen.When detecting touching signals change on many touch detection electrodes, changing maximum electrode with touching signals is the touch-control anchor point, or to detect centre positions that touching signals changes electrode with these be the touch-control anchor point.
The touch control detection circuit is a kind of as touch detection electrodes with in tft array substrate scanning electrode wire on glass, signal electrode line, the ground-electrode line.
The multiplexing display screen electrode of display drive signals and touch-control detectable signal, with the display screen electrode as touch detection electrodes, allow both transmitting and displaying drive signals of display screen electrode, sensing and transmit touching signals again, can use time division multiplex and shared two kinds of methods of while: when display drive signals and touch-control detectable signal time division multiplex display screen electrode, between display screen electrode and display driver circuit, between display screen electrode and touch control detection circuit, all add analog switch between display screen electrode and touch-control driving source, allow the timesharing of display screen electrode be communicated with display driver circuit and touch control detection circuit or touch-control driving source, make the display screen electrode in different time sections or transmitting and displaying drive signal, or transmission touch-control detectable signal.When the simultaneously shared display screen electrode of display drive signals and touch-control detectable signal, touching signals have with display drive signals different feature, as frequency or coding characteristic.Display driver circuit is connected with the display screen electrode by the signal loading circuit with the touch-control driving source, and display driver circuit is connected with the display screen electrode by demultiplexing circuit with the touch control detection circuit.The signal loading circuit makes display drive signals and touching signals synthesize composite signal, and is applied on the display screen electrode; Demultiplexing circuit is separated touching signals from the composite signal of display drive signals and touching signals, and is transferred to the touch control detection circuit.
Allow the multiplexing display screen electrode of display drive signals and touch-control detectable signal, the touch-control driving source can be at the interface of display screen and driving circuit, the touch-control pumping signal is imported and taken out to switching by analog switch to the display screen electrode, or import and take out the touch-control pumping signal by signal loading circuit and demultiplexing circuit to the display screen electrode; Display driver circuit can be divided into drive source circuit, selection and output circuit, control circuit three parts, the touch-control driving source also can be in driving circuit drive source circuit and the interface between selection and output circuit, the touch-control pumping signal is imported and taken out to switching by analog switch to the display screen electrode, or import and take out the touch-control pumping signal by signal loading circuit and demultiplexing circuit to the display screen electrode.
Brief Description Of Drawings
Fig. 1 is the touch TFT-LCD of a kind of time division multiplex tft array substrate line scanning electrode wires on glass.
Fig. 2 is the touch TFT-LCD of a kind of time division multiplex tft array substrate column signal electrode wires on glass.
Fig. 3 is the touch TFT-LCD of a kind of frequency division multiplexing tft array substrate line scanning electrode wires on glass.
Embodiment
One of embodiments of the invention are as shown in Figure 1: the touch TFT-LCD100 of a kind of time division multiplex tft array substrate line scanning electrode wires on glass.TFT-LCD 100 is made up of LCDs 110, display driver circuit 120 and 130, touch control detection circuit 140 and touch-control driving source 150, control system 160.The tft array substrate of LCDs 110 is on glass N bar line scanning electrode wires 111 and a M bar column signal electrode wires 112, and N bar line scanning electrode wires 111 all has exit from the base plate glass both sides.One end of the N bar line scanning electrode wires 111 of LCDs 110 connects display driver circuit 120; The other end of odd electrode connects touch-control driving source 150 in the N bar line scanning electrode wires 111, and the other end of even electrode connects touch control detection circuit 140 in the N bar line scanning electrode wires 111.Electric signal output to display screen is divided into demonstration and touch-control two frames, and in display frame, touch-control driving source 150 stops to display screen electrode output touching signals, and touch control detection circuit 140 stops to display screen electrode sample touching signals; Display driver circuit 120 and 130 drives display element and shows to display screen electrode output display drive signals.In the touch-control frame, display driver circuit 120 and 130 stops to display screen electrode output display drive signals; The odd electrode output touching signals of touch-control driving source 150 in N bar line scanning electrode wires 111, the even electrode sampling touching signals of touch control detection circuit 140 in N bar line scanning electrode wires 111.When the finger 170 of touch-control touches LCDs 110, touching signals part on a certain the even electrode both sides odd electrode in the N bar line scanning electrode wires 111 spills from touch control object Vent, the touching signals that the even electrode that is connected with touch control detection circuit 140 is received changes, and touch control detection circuit 140 detects the variation of touching signals.To detect the line scanning electrode wires that touching signals changes, the location is by the touch-control electrode; With detected touching signals size, the location touch control object is by the position on the touch-control electrode; Position of touch is determined in position on the touch-control electrode by touch-control electrode and touch control object.
Embodiments of the invention two as shown in Figure 2: the touch TFT-LCD200 of a kind of time division multiplex tft array substrate column signal electrode wires on glass.TFT-LCD 200 is made up of LCDs 210, display driver circuit 220 and 230, touch control detection circuit 240 and touch-control driving source 250, control system 260, M position single-pole double-throw (SPDT) analog switch group 270 and M position single-pole single-throw (SPST) analog switch group 280.The tft array substrate of LCDs 210 is on glass N bar line scanning electrode wires 211 and a M bar column signal electrode wires 212, and M bar column signal electrode wires 212 all has exit from the base plate glass both sides.One end of the M bar column signal electrode wires 212 of LCDs 210, the stiff end that connects M position single-pole double-throw (SPDT) analog switch group 270, display driver circuit 230 is connected to a switch terminal of M position analog switch group 270, touch-control driving source 250 is connected to another switch terminal of odd number switch in the M position analog switch group 270, and touch control detection circuit 240 is connected to another switch terminal of even number switch in the M position analog switch group 270; The other end of odd electrode connects touch-control driving source 250 by single-pole single-throw (SPST) analog switch group 280 in the M bar column signal electrode wires 212, and the other end of even electrode connects touch control detection circuit 240 by single-pole single-throw (SPST) analog switch group 280 in the M bar column signal electrode wires 212.In display frame, control system 260 allows in analog switch group 270 and 280 the even number switch with scan mode, make an end of even electrode line in the column signal electrode wires, turn to connection touch control detection circuit 240 from connecting display driver circuit 230, also allow simultaneously in the analog switch group 280 the even number switch with scan mode, make the other end of even electrode line in the column signal electrode wires, be communicated with touch control detection circuit 240; Allow odd number switch in the analog switch group 270 with synchronous scan mode, make in the column signal electrode wires two adjacent odd electrode lines turn to and connect touch-control driving source 250 from connecting display driver circuit 230, also allow simultaneously in the analog switch group 280 the even number switch with scan mode, make the other end of same two odd electrode lines in the column signal electrode wires, be communicated with touch control detection circuit 250.When the finger 290 of touch-control touches LCDs 210, when a certain strip electrode in the M bar column signal electrode wires 212 is connected to touch control detection circuit 240, touching signals part on the column signal electrode wires both sides that are communicated with touch control detection circuit 240 and the column signal electrode wires that touch-control driving source 250 is communicated with spills from touch control object Vent, the touching signals that the column signal electrode wires that is communicated with touch control detection circuit 240 is received changes, and touch control detection circuit 240 detects the variation of touching signals.To detect the column signal electrode wires that touching signals changes, the location is by the touch-control electrode; With the difference of touch-control electrode two ends touching signals size, the location touch control object is by the position on the touch-control electrode; Position of touch is determined in position on the touch-control electrode by touch-control electrode and touch control object.
Embodiments of the invention three as shown in Figure 3: the touch TFT-LCD 300 of a kind of frequency division multiplexing tft array substrate line scanning electrode wires on glass.TFT-LCD 300 is made up of LCDs 310 (tft array substrate of LCDs 310 N of having bar on glass line scanning electrode wires 311 and M bar column signal electrode wires 312), display driver circuit 320, touch control detection circuit 330 and touch-control driving source 340, low pass circuit 350, high pass circuit 360 and 370.Display driver circuit 320 is divided into drive source circuit 321, row selection and output circuit 322, column selection and output circuit 323, control circuit 324; Row is selected and output circuit 322 has enable level input end 325 and non-enable level input end 326, and enable level is used to open TFT, and non-enable level is used to close TFT.Low pass circuit 350 allows display drive signals pass through, and the touching signals of high frequency can not be passed through; Display drive signals can not be passed through for high pass circuit 360 and 370, allows the touching signals of high frequency pass through.The N bar line scanning electrode wires 311 of LCDs 310 connects the row of display driver circuit 320 to be selected and output circuit 322, and M bar column signal electrode wires 312 connects the column selection and the output circuit 323 of display driver circuit 320; Column selection directly is connected drive source circuit 321 with output circuit 323, and row is selected to be connected drive source circuit 321 with output circuit 322 by low pass circuit 350; Touch control detection circuit 330 connects the row selection of display driver circuit 320 and the enable level input end 325 of output circuit 322 by high pass circuit 360, and touch-control driving source 340 connects display driver circuit 320 non-enable level input ends 326 by high pass circuit 370.The touching signals that touch-control driving source 340 sends is superimposed upon on the non-enable level by high pass circuit 370, be transferred to that row is selected and the non-enable level input end 325 of output circuit 322, be transferred to again on the non-gate line of line scanning electrode wires 311 of LCDs 310; Touch control detection circuit 330 detects the touching signals that flows out from the enable level input end 324 of row selection and output circuit 322 by high pass circuit 360.In procedure for displaying, with display line scanning, touch control detection circuit 330 detects the touching signals of the line scanning electrode wires 311 of display screen 310 line by line, and is abound with the touch-control pumping signal on the non-gate line of line scanning electrode wires 311.When the finger 380 of touch-control touches LCDs 310, when a certain strip electrode in the N bar line scanning electrode wires 311 is connected to touch control detection circuit 330, touching signals part on the column signal electrode wires both sides that are communicated with touch control detection circuit 330 and the column signal electrode wires that touch-control driving source 340 is communicated with spills from touch control object Vent, the touching signals that the column signal electrode wires that is communicated with touch control detection circuit 330 is received changes, touch control detection circuit 330 detects the variation of touching signals, to detect the column signal electrode wires that touching signals changes, the location is by the touch-control electrode; With detected touching signals size, the location touch control object is by the position on the touch-control electrode; Position of touch is determined in position on the touch-control electrode by touch-control electrode and touch control object.
The above embodiments are not represented all possible embodiment, and other deformation program also should be protection scope of the present invention.
Claims (10)
1. active touch control panel display, the active panel display screen tft array substrate is on glass, has the scanning electrode wire that extremely links to each other with the Gate of TFT, the signal electrode line that links to each other with source electrode or the drain electrode of TFT, the ground-electrode line, with tft array substrate partial parallel electrode wires on glass as touch detection electrodes, utilize the coupling capacitance that produces between touch control object and display screen electrode, by detection and analytical calculation to touch control object and display screen electrode coupled signal, try to achieve the position of touch control object on display screen, it is characterized in that: with tft array substrate partial parallel electrode wires on glass as touch detection electrodes, with with remainder parallel on the base plate glass with touch detection electrodes or all electrode wires as the touch-control exciting electrode, touch detection electrodes connects the touch control detection circuit, the touch-control exciting electrode connects the touch-control driving source, the touch control detection circuit is with the variation of the caused touching signals of coupling between detected touch control object and touch-control exciting electrode and touch detection electrodes, the position of touch control object on touch detection electrodes, location.
2. active touch control panel display according to claim 1 is characterized in that: the one-sided termination of touch detection electrodes connects the touch control detection circuit, and to detect the touch detection electrodes that touching signals changes, the location is by the touch-control electrode; Detecting the size of touching signals, the location touch control object is by the position on the touch-control electrode.
3. active touch control panel display according to claim 1 is characterized in that: the termination, both sides of touch detection electrodes all connects the touch control detection circuit, and to detect the touch detection electrodes that touching signals changes, the location is by the touch-control electrode; With the difference of touch-control electrode two ends touching signals size, the location touch control object is by the position on the touch-control electrode.
4. active touch control panel display according to claim 1 is characterized in that: the touch control detection circuit is a kind of as touch detection electrodes with in tft array substrate scanning electrode wire on glass, signal electrode line, ground-electrode line or other the electrode wires.
5. active touch control panel display according to claim 1 is characterized in that: with the one-sided parallel pole of touch detection electrodes, connect the touch-control driving source as the touch-control exciting electrode.
6. active touch control panel display according to claim 1 is characterized in that: with the parallel pole of touch detection electrodes both sides, all connect the touch-control driving source as the touch-control exciting electrode.
7. active touch control panel display according to claim 1 is characterized in that: touching signals imported and taken out to the touch-control driving source by the switching of analog switch to the display screen electrode at the interface of display screen and driving circuit.
8. active touch control panel display according to claim 1, it is characterized in that: the touch-control driving source is at the interface of display screen and driving circuit, to display screen electrode input touching signals, take out touching signals to the display screen electrode by the signal loading circuit by demultiplexing circuit.
9. active touch control panel display according to claim 1, display driver circuit can be divided into drive source circuit, selection and output circuit, control circuit three parts, it is characterized in that: the touch-control driving source in driving circuit drive source circuit and the interface between selection and output circuit, the switching by analog switch is to the input of display screen electrode and take out touching signals.
10. active touch control panel display according to claim 1, display driver circuit can be divided into drive source circuit, selection and output circuit, control circuit three parts, it is characterized in that: the touch-control driving source in driving circuit drive source circuit and the interface between selection and output circuit, to display screen electrode input touching signals, take out touching signals to the display screen electrode by the signal loading circuit by demultiplexing circuit.
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| CN200610115269XA CN101122838B (en) | 2006-08-13 | 2006-08-13 | Active touch control panel display |
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| CN101122838A (en) | 2008-02-13 |
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