CN201622819U - Driving device for touch control FPD - Google Patents
Driving device for touch control FPD Download PDFInfo
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- CN201622819U CN201622819U CN2009201777888U CN200920177788U CN201622819U CN 201622819 U CN201622819 U CN 201622819U CN 2009201777888 U CN2009201777888 U CN 2009201777888U CN 200920177788 U CN200920177788 U CN 200920177788U CN 201622819 U CN201622819 U CN 201622819U
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Abstract
The utility model relates to a touch control FPD (flat-panel display), in particular to a driving device for a touch control FPD. The driving device provided by the utility model adopts the scheme that a touch control circuit is arranged in a display drive IC chip through utilizing the unoccupied area in the display drive IC chip, that is, a display drive circuit and the touch control circuit are integrated in one chip, as far as possible, generation, sampling, detection, transmission, processing, screening, judgment, and other procedures of the touch control signals are completed in one chip, thereby not only lowering the cost of display drive and touch control detection general circuit, improving the integration level of the driving circuit for touch control FPD, simplifying peripheral circuits, increasing reliability, and reducing cost, but also leading the touch control circuit to approach the lead-out end of the display screen as far as possible to avoid interference from external signals.
Description
Technical field
The present invention relates to touch control type flat-panel display, relate in particular to the drive unit of touch control type flat-panel display.
Background technology
Touch is human most important perceptive mode, is that people and machine carry out the most natural interactive mode.The touch screen development has been widely used in various fields such as personal computer, smart phone, public information, intelligent appliance, Industry Control so far.
Display screen and touch screen are to twin product, and in the prior art, display screen and touch screen are independently born separately and shown and the touch-control task usually.The flat-panel monitor with touch controllable function of present this discrete 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 passive LCDs (TN/STN-LCD), active matrix liquid crystal display panel (TFT-LCD), organic light-emitting diode (OLED) display screen (OLED, AM-OLED), plasma display panel (PDP) (PDP), CNT display screen, Electronic Paper (e-paper) 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 touch 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 that again demonstration is inhomogeneous and show decrease of contrast under strong ambient light environment, influences 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 mainly contains 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 COLTD, 2001), Finnish patent (FI19960002692, NOKIA MOBILE PHONES LTD, 1996), Jap.P. (JP19850161986, CANON KK, 1985), (JP19900095167, NIPPONTELEGRAPH ﹠amp; TELEPHONE, 1990), (JP 19930306286, PFU LTD, 1993), (JP19980014850, NISSHA PRINTING, 1998), (JP19990142260, MIMAKIDENSHI BUHIN KK, 1999), Korean Patent (KR20000084115, YU HWAN SEONG; LIM JOO-SOO, 2000), (KR20020083301, BANG YONG IK; Etc., 2002), TaiWan, China patent (TW556141, AU OPTRONICS CORP, 2002), United States Patent (USP) (US6215476, APPLE COMPUTER, 2001), (US20030347603, TOPPOLYOPTOELECTRONICS CORP, 2003) etc. multinomial patent has 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, equally also can influence the brightness of demonstration; And stacked method also can increase the integral thickness of display; Complicated structure can cause reliability decrease again, and also causes cost higher because of the complexity of production run and the complexity of assembling.
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, JUNG YONGCHAE; YANG DONG KYU, 2003), (KR20030077574, CHOI JOON-H00; JOOIN-SOO, 2003), Deutsche Bundespatent (GB0304587.9, SHARP, 2003), United States Patent (USP) (US19970955388, SONY ELECTRONICS INC, 1997), (US19980135959, IBM, 1998), (US20030721129, EASTMAN KODAK C0,2003) 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 cause the cost height, and also may produce the mutual interference mutually of display drive signals and touch-control detectable signal.Stacked and to inlay all be to carry out integratedly to showing with touch-control in the mode of mechanical assembly unit, touch-screen and display screen remain and independently bear touch-control and demonstration task separately.
Also the someone attempts to survey touch-control by the method for electric capacity between the box of surveying LCDs, as TaiWan, China 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 this method of surveying touch-control by electric capacity between the box of surveying LCDs is worthless at present.
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 2006100948141, name is called the Chinese invention patent instructions of " touch control type flat-panel display ", disclosed the connected mode between a kind of touch-control detection circuit and the display screen electrode, make display screen electrode or transmitting and displaying drive signal by analog switch, or transmission and sensing touching signals, display driver and touch-control are surveyed time division multiplex display screen electrode, and the display screen electrode not only is used for display driver but also be used for the touch-control detection.Application number is 2006101065583, name is called the Chinese invention patent instructions of " flat-panel monitor with touch controllable function ", disclosed the connected mode between another kind of touch-control detection circuit and the display screen electrode, make display screen electrode transmitting and displaying drive signal and transmission and sensing touching signals simultaneously by the signal loading circuit, display driver and touch-control are surveyed shared display screen electrode simultaneously, and the display screen electrode not only is used for display driver but also be used for the touch-control detection.
Application number is 2009102035358, name is called the Chinese invention patent instructions of " a kind of driving of touch control type flat-panel display realizes ", application number is 2009101399060, name is called the Chinese invention patent instructions of " a kind of driving of touch control type flat-panel display realizes ", the mode that is disclosed is the circuit structure relation of quite concrete touch-control detection circuit and display driver circuit and display screen, makes the touch-control detection circuit reasonable with being connected of display driver circuit and display screen electrode.Promptly can allow the different electrode wires of display screen be communicated with the touch-control driving source simultaneously, realize different display screen electrode wires are applied the touch-control pumping signal simultaneously, the flow direction of control touching signals in display screen reduces touching signals crosstalking between the different electrode wires of display screen; Can detect the touching signals that flows through the different electrode wires of display screen respectively only with a spot of touch-control detection circuit unit again, reduce volume, power consumption and the cost of many touch-controls detection circuit unit.Allow the simple possible that is connected of touch-control detection circuit and display driver circuit and display screen electrode, even have an opportunity to allow display driver circuit and touch-control detection circuit unite two into one.
The mode that above-mentioned Chinese patent disclosed makes the touch-control detection circuit reasonable with being connected of display screen electrode, even also utilized selection and the output circuit part in the display driver circuit dexterously, allow the simple possible that is connected of touch-control detection circuit and display screen electrode, do not needing to add under the situation of touch sensor, allow display screen and touch screen unite two into one, constitute the display system of the band touch controllable function of an easy novelty.
The row-column electrode of panel display screen intersect constitute latticed, the touch-control pumping signal that a strip electrode is applied can be between the grid electrode of panel display screen crossfire, thereby have influence on judgement to the utmost point that gets an electric shock.Application number is that 200810133417X, name are called the Chinese invention patent instructions of " a kind of touch control type flat-panel display ", disclosed a kind of mode that the display screen electrode wires is applied the touch-control pumping signal, by allowing different electrode wires be communicated with the touch-control driving source simultaneously, realization applies the touch-control pumping signal simultaneously to different electrode wires, with the flow direction of control touch-control pumping signal in display screen, reduce touching signals crosstalking between different electrode wires, accomplish touch-control location accurately.
This class touch control type flat-panel display basic functional principle that above-mentioned Chinese patent disclosed is, the electrode that utilizes two sets intersect on the display screen is as the touch-control sensing electrode, each strip electrode line of electrode group connects the touch-control driving source, and the touch-control driving source applies the touch-control pumping signal of interchange to electrode wires.When people's finger or other touch control objects come close to or in contact with certain strip electrode line, form coupling capacitance between finger or other touch control objects and electrode, the touch-control pumping signal on the electrode wires will let out by this coupling capacitor part.Touch-control circuit is by surveying the size that each strip electrode line touching signals changes, find out the leakage current maximum or leakage current surpass the electrode wires of certain threshold value, thereby find out finger or the position of other touch control objects on display screen.This is a kind of brand-new demonstration and the touch-control Detection Techniques of touch-control two-in-one type, has significant cost advantage, has vast potential for future development after it is improved.
Display driver and touch-control are surveyed interconnecting of circuit separately, be the interconnecting of touch-control driving source, touching signals testing circuit etc. in display driver circuit and the touch-control circuit, make that but the periphery circuit structure of touch control type flat-panel display is too complicated, cost increases, reliability reduces, and the transmission of faint touching signals between interlock circuit be vulnerable to external interference, and the stability that touch-control is surveyed also can descend.Reduce touch control type flat-panel display periphery circuit structure complicacy, avoid touching signals to be subjected to disturb, to improve the touch-control detection reliability, to control cost, all be touch control type flat-panel display is needed solution badly in Project Realization and scale volume production link problem.Seek the rationally integrated of touch-control circuit and display driver circuit, allow the simple possible that is connected of touch-control circuit and display driver circuit and display screen electrode, reduce the quantity of the periphery circuit and the integrated circuit related with same of touch control type flat-panel display, be the work that has very much value as far as possible.
Summary of the invention
Because integrated circuit technology and integrated circuit are connected the restriction of manufacture craft with application circuit, spacing between the leading foot of integrated circuit has certain requirement, when IC leading foot number is big, the corresponding increase of the area of integrated circuit, the layout of circuit and device is often just looser in the IC chip.Flat-panel monitor is that a kind of multichannel drives product, the display driver IC of display driver IC, particularly flat panel displays has very many leading foots, the size of display driver IC chip is by the number decision of leading foot, have vacant area in the display driver IC chip, and the cost of IC chip is to be directly proportional with chip size.Utilize the vacant position in the display driver IC chip, touch-control circuit is arranged in the display driver IC chip, just display driver circuit and touch-control circuit are integrated on the same chip, in same IC, finish a series of activities such as generation, sampling, detection, transmission, processing and examination judgement of touching signals as far as possible, both can reduce display driver and touch-control and survey the cost of overall circuit, can allow the exit of the as close as possible display screen of touch-control circuit again, avoid the interference of external signal.
The present invention aims to provide a kind of drive unit of touch control type flat-panel display, realizes being integrated in display driver circuit and touch-control circuit on the same chip or being encapsulated in the same device.Improve the integrated level of touch control type flat-panel display driving circuit, simplify the periphery circuit of touch control type flat-panel display, reduce cost, avoid interference.
Technical matters of the present invention is solved by following technical scheme:
A kind of drive unit of touch control type flat-panel display, be meant the driving circuit section of touch control type flat-panel display, touch control type flat-panel display comprises panel display screen and driving circuit, driving circuit has display driver circuit and touch-control circuit, and makes the display screen electrode not only be used for display driver but also be used for demonstration/touching signals gating circuit or the demonstration/touching signals loaded circuit that touch-control is surveyed; Described display driver circuit has display drive source, display timing generator control circuit, shows signal selection and output circuit etc.; Described touch-control circuit has touch-control driving source and touching signals testing circuit, and the touching signals testing circuit is made up of input passage, data sampling channel, data processing and time schedule controller; Described input passage has touching signals sampling element, impact damper, amplifying circuit etc.; Described data sampling channel has D/A converting circuit; Described data processing and time schedule controller are the central processing units (CPU, MCU) with data operation ability, data input and output interfaces; Described central processing unit has Control Software, data processing software etc.; Described demonstration/touching signals gating circuit makes the display screen electrode or is communicated with the transmitting and displaying drive signal with display driver circuit, or is communicated with the transmission touching signals with touch-control circuit, and display driver and touch-control are surveyed time division multiplex display screen electrode; Described demonstration/touching signals loaded circuit makes display screen electrode transmitting and displaying drive signal and touching signals simultaneously, and display driver and touch-control are surveyed shared display screen electrode simultaneously; Have column electrode group and row electrode group on the display screen substrate, the touch-control driving source of touch-control circuit applies touching signals by demonstration/touching signals gating circuit or demonstration/touching signals loaded circuit to certain the strip electrode line in column electrode group or the row electrode group, the touching signals testing circuit of touch-control circuit is by detecting the variation of touching signals on this electrode wires, and whether survey this electrode wires touched; The all or part of circuit of described display driver circuit, with all or part of circuit of demonstration/touching signals gating circuit and all or part of circuit of touch-control circuit be to be integrated on the same chip; Or all or part of circuit of described display driver circuit, with all or part of circuit of demonstration/touching signals loaded circuit and all or part of circuit of touch-control circuit be to be integrated on the same chip.
Technical matters of the present invention is further solved by following technical scheme:
A kind of drive unit of touch control type flat-panel display, be meant the driving circuit section of touch control type flat-panel display, touch control type flat-panel display comprises panel display screen and driving circuit, driving circuit has display driver circuit and touch-control circuit, and makes the display screen electrode not only be used for display driver but also be used for demonstration/touching signals gating circuit or the demonstration/touching signals loaded circuit that touch-control is surveyed; Described display driver circuit has display drive source, display timing generator control circuit, shows signal selection and output circuit etc.; Described touch-control circuit has touch-control driving source and touching signals testing circuit, and the touching signals testing circuit is made up of input passage, data sampling channel, data processing and time schedule controller; Described input passage has touching signals sampling element, impact damper, amplifying circuit etc.; Described data sampling channel has D/A converting circuit; Described data processing and time schedule controller are the central processing units (CPU, MCU) with data operation ability, data input and output interfaces; Described central processing unit has Control Software, data processing software etc.; Described demonstration/touching signals gating circuit makes the display screen electrode or is communicated with the transmitting and displaying drive signal with display driver circuit, or is communicated with the transmission touching signals with touch-control circuit, and display driver and touch-control are surveyed time division multiplex display screen electrode; Described demonstration/touching signals loaded circuit makes display screen electrode transmitting and displaying drive signal and touching signals simultaneously, and display driver and touch-control are surveyed shared display screen electrode simultaneously; Have column electrode group and row electrode group on the display screen substrate, the touch-control driving source of touch-control circuit applies touching signals by demonstration/touching signals gating circuit or demonstration/touching signals loaded circuit to certain the strip electrode line in column electrode group or the row electrode group, the touching signals testing circuit of touch-control circuit is by detecting the variation of touching signals on this electrode wires, and whether survey this electrode wires touched; The all or part of circuit of described display driver circuit, with all or part of circuit of demonstration/touching signals gating circuit and all or part of circuit of touch-control circuit be to be encapsulated in the same device; Or all or part of circuit of described display driver circuit, with all or part of circuit of demonstration/touching signals loaded circuit and all or part of circuit of touch-control circuit be to be encapsulated in the same device.
According to another concrete aspect of the present invention, the display timing generator control circuit of described display driver circuit and the data processing of touch-control circuit and time schedule controller are to share same sequential control circuit.
According to another concrete aspect of the present invention, all or part of circuit of all or part of circuit of described display driver circuit and demonstration/touching signals gating circuit; Or all or part of circuit of all or part of circuit of described display driver circuit and demonstration/touching signals loaded circuit, be to be integrated on the same chip or to be encapsulated in the same device.
According to another concrete aspect of the present invention, the all or part of circuit of described display driver circuit, with demonstration/touching signals gating circuit or demonstration/touching signals loaded circuit, and all or part of circuit of all or part of circuit of the input passage of touch-control circuit, data sampling channel is to be integrated on the same chip or to be encapsulated in the same device.
According to another concrete aspect of the present invention, the all or part of circuit of described display driver circuit, with demonstration/touching signals gating circuit or demonstration/touching signals loaded circuit, and input passage, data sampling channel, data processing and the time schedule controller of touch-control circuit are to be integrated on the same chip or to be encapsulated in the same device.
According to another concrete aspect of the present invention, the all or part of circuit of described display driver circuit, with demonstration/touching signals gating circuit or demonstration/touching signals loaded circuit, and input passage, data sampling channel, data processing and the time schedule controller of touch-control circuit, touch-control driving source are to be integrated on the same chip or to be encapsulated in the same device.
According to another concrete aspect of the present invention, the all or part of circuit of described display driver circuit, with demonstration/touching signals gating circuit or demonstration/touching signals loaded circuit, and the input passage of touch-control circuit, touch-control driving source are to be integrated on the same chip or to be encapsulated in the same device.
According to another concrete aspect of the present invention, the all or part of circuit of described display driver circuit, with demonstration/touching signals gating circuit or demonstration/touching signals loaded circuit, and the input passage of touch-control circuit, data sampling channel, touch-control driving source are to be integrated on the same chip or to be encapsulated in the same device.
According to another concrete aspect of the present invention, touch-control driving source, data processing and the time schedule controller of described touch-control circuit are to share same circuit.
The beneficial effect that the present invention is compared with the prior art is:
Disclosed technical scheme places display driver circuit and touch-control detection circuit in the same integrated circuit, allows not only shared display screen of touch control type flat-panel display but also common drive IC, has realized that the height of demonstration and touch-control merges.
Display driver circuit and touch-control detection circuit are integrated in the same IC chip, both can have made full use of the clearance spaces in the chip due to the display driver circuit exit is many, reduced the overall cost of display driver circuit and touch-control detection circuit; Can allow the leading foot of display driver circuit and shared IC of touch-control detection circuit and display screen coupling part again, simplify the peripheral connection line and the follow-up manufacture craft of touch control type flat-panel display, further reduce the overall cost of touch control type flat-panel display; Can allow the exit of the as close as possible display screen of touch-control circuit again, reduce the chance that touching signals is subjected to external interference, improve stability and reliability that touch-control is surveyed.
Description of drawings
Fig. 1 is the electrical structure synoptic diagram of active touch control formula flat-panel monitor:
Fig. 2 is the electrical structure synoptic diagram of passive touch control type flat-panel display;
Fig. 3 is the electrical structure synoptic diagram of the specific embodiment of the invention one;
Fig. 4 is the electrical structure synoptic diagram of the specific embodiment of the invention two;
Fig. 5 is the electrical structure synoptic diagram of the specific embodiment of the invention three;
Fig. 6 is the electrical structure synoptic diagram of the specific embodiment of the invention four;
Fig. 7 is the electrical structure synoptic diagram of the specific embodiment of the invention five;
Fig. 8 is the electrical structure synoptic diagram of the specific embodiment of the invention six;
Fig. 9 is the electrical structure synoptic diagram of the specific embodiment of the invention seven;
Figure 10 is the electrical structure synoptic diagram of the specific embodiment of the invention eight.
Embodiment
The present invention is applicable to all touch control type flat-panel displays that comprise LCDs (LCD, AM-LCD) with column electrode and row electrode, organic light-emitting diode (OLED) display screen (OLED, AM-OLED), plasma display panel (PDP) (PDP), CNT display screen, Electronic Paper (e-paper) etc.For circuit structure and the electric connecting relation that touch control type flat-panel display clearly is described, touch control type flat-panel display with Thin Film Transistor (TFT) LCDs (TFT-LCD) and passive LCDs is typical representative object below, and the circuit structure and the electric connecting relation of touch control type flat-panel display is described.
With TFT-LCD be display screen touch control type flat-panel display 100 electric connecting relation as shown in Figure 1.Touch control type flat-panel display 100 comprises TFT-LCD screen 110, demonstration/touching signals gating circuit or demonstration/touching signals loaded circuit 160, display driver circuit 170, touch-control circuit 180 etc.TFT-LCD screen 110 has common electrode layer (COM electrode) 120, the scan line electrode 130 of horizontal direction (comprise row electrode lines 131,132 ..., 13m-1,13m), the signal train electrode 140 of vertical direction (comprise row electrode wires 141 ..., 14n); Thin Film Transistor (TFT) tft array 151, the grid of its each TFT (Gate) connects each electrode wires of column electrode 130, and the source electrode of each TFT (Source) connects each electrode wires of row electrode 140, and the drain electrode of each TFT (Drain) then connects the display pixel electrode; The liquid crystal cell 152 of display pixel correspondence is equivalent to a capacitor C on electric
LCMemory capacitance (Capacitance Storage, Cs) 153, be used for the display message of storage pixel; Demonstration/touching signals gating circuit or demonstration/touching signals loaded circuit 160 allows the display screen electrode not only be used for display driver but also be used for the touch-control detection; Display driver circuit 170 has display drive source 171, shows signal is selected and output circuit 172, display timing generator control circuit 173 etc.; Described display drive source 171 provides the energy of display driver for the display screen electrode; Touch-control circuit 180 has touch-control driving source 181 and touching signals testing circuit 190; Described touch-control driving source 181 provides energy for the touching signals that applies to the display screen electrode; Touching signals testing circuit 190 has input passage 191, data sampling channel 192, data processing and time schedule controller 193; Described input passage 191 has touching signals sampling element, impact damper, amplifying circuit etc.; Described data sampling channel 192 has analog to digital conversion circuit; Described data processing and time schedule controller 193 are the central processing units (CPU, MCU) with data operation ability, data input and output interfaces; Described central processing unit has Control Software, data processing software etc.; The display timing generator control circuit 173 of display driver circuit 170 interconnects synchronous signal transmission and other data with the data processing and the time schedule controller 193 of touch-control circuit 180.
At display time interval, demonstration/touching signals gating circuit or demonstration/touching signals loaded circuit 160 in the touch control type flat-panel display 100 make display screen line electrode 130, row electrode 140 and COM electrode 120, be communicated with display driver circuit 170 transmitting and displaying drive signals, the sequential control circuit 173 of display driver circuit 170 is responsible for receiving the RGB data from the signal of video signal process chip, clock signal C lock, horizontal synchronization Hsync and vertical synchronizing signal Vsync, and with these conversion of signals, be used to control source electrode (row electrode) driver and the collaborative work of grid (column electrode) driver, display screen 110 is in show state.
Survey the period at touch-control, demonstration/touching signals gating circuit or demonstration/touching signals loaded circuit 160 in the touch control type flat-panel display 100 make display screen line electrode 130, row electrode 140 and COM electrode 120, are communicated with touch-control circuit 180 transmission touching signals.Touch-control circuit 180 applies the touch-control pumping signal with data processing and time schedule controller 193 control touch-control driving sources 181 to the display screen electrode, and display screen ranks electrode is used as the touch-control sensing electrode; Touching signals testing circuit 190 detects the variation of the touching signals of flow through each bar row electrode lines and each bar row electrode wires respectively, and the touching signals variation of flowing through reaches certain row electrode lines that imposes a condition and the row electrode wires is the polar curve that gets an electric shock to detect.By the point of crossing that the quilt that detects touches row electrode lines and touched the row electrode wires, determine the position of touch point on display screen 110.Line in the accompanying drawing is represented all possible line.
With Passive LC D be display screen touch control type flat-panel display 200 electric connecting relation as shown in Figure 2.Touch control type flat-panel display 200 comprises Passive LC D screen 210, demonstration/touching signals gating circuit or demonstration/touching signals loaded circuit 240, display driver circuit 250, touch-control circuit 260 etc.LCD 210 have horizontal direction scan line electrode 220 (comprise row electrode lines 221,222 ..., 22m-1,22m), the signal train electrode 230 of vertical direction (comprise row electrode wires 231 ..., 23n); The intersection of column electrode 220 and row electrode 230 is display pixels, and the liquid crystal cell 211 of each display pixel correspondence is equivalent to a capacitor C on electric
LCDemonstration/touching signals gating circuit or demonstration/touching signals loaded circuit 240 allows the display screen electrode not only be used for display driver but also be used for the touch-control detection; Display driver circuit 250 has display drive source 251, shows signal is selected and output circuit 252, display timing generator control circuit 253 etc.; Described display drive source 251 provides the energy of display driver for the display screen electrode; Touch-control circuit 260 has touch-control driving source 261 and touching signals testing circuit 270; Described touch-control driving source 261 provides energy for the touching signals that applies to the display screen electrode; Touching signals testing circuit 270 has input passage 271, data sampling channel 272, data processing and time schedule controller 273; Described input passage 271 has touching signals sampling element, impact damper, amplifying circuit etc.; Described data sampling channel 272 has analog to digital conversion circuit; Described data processing and time schedule controller 273 are the central processing units (CPU, MCU) with data operation ability, data input and output interfaces; Described central processing unit has Control Software, data processing software etc.; The display timing generator control circuit 253 of display driver circuit 250 interconnects synchronous signal transmission and other data with the data processing and the time schedule controller 273 of touch-control circuit 260.
At display time interval, demonstration/touching signals gating circuit or demonstration/touching signals loaded circuit 240 in the touch control type flat-panel display 200 make display screen line electrode 220, row electrode 230, be communicated with display driver circuit 250 transmitting and displaying drive signals, the sequential control circuit 253 of display driver circuit 250 is responsible for receiving the data from the signal of video signal process chip, clock signal C lock, horizontal synchronization Hsync and vertical synchronizing signal Vsync, and with these conversion of signals, be used to control row electrode driver and the collaborative work of column electrode driver, display screen 210 is in show state.
Survey the period at touch-control, demonstration/touching signals gating circuit or demonstration/touching signals loaded circuit 240 in the touch control type flat-panel display 200 make display screen line electrode 220, row electrode 230, are communicated with touch-control circuit 260 transmission touching signals.Touch-control circuit 260 applies the touch-control pumping signal with data processing and time schedule controller 273 control touch-control driving sources 261 to the display screen electrode, and display screen ranks electrode is used as the touch-control sensing electrode; Touching signals testing circuit 270 detects the variation of the touching signals of flow through each bar row electrode lines and each bar row electrode wires respectively, and the touching signals variation of flowing through reaches certain row electrode lines that imposes a condition and the row electrode wires is the polar curve that gets an electric shock to detect.By the point of crossing that the quilt that detects touches row electrode lines and touched the row electrode wires, determine the position of touch point on display screen 210.Line in the accompanying drawing is represented all possible line.
Embodiment one
The drive unit 3000 of a kind of touch control type flat-panel display as shown in Figure 3 comprises display driver circuit 3100, touch-control circuit 3200 and makes the display screen electrode not only be used for display driver but also be used for demonstration/touching signals gating circuit 3300 that touch-control surveys etc.; Described display driver circuit 3100 has display drive source 3110, shows signal is selected and output circuit 3120, display timing generator control circuit 3130 etc.; Described display drive source 3110 provides the energy of display driver for the display screen electrode; Described touch-control circuit 3200 has touch-control driving source 3210 and touching signals testing circuit 3220; Described touch-control driving source 3210 provides energy for the touching signals that applies to the display screen electrode; Described touching signals testing circuit 3220 is made up of touching signals sense channel 3221, data sampling channel 3222, data processing and time schedule controller 3223 etc.Display screen 3400 has row-column electrode.
At display time interval, demonstration/touching signals gating circuit 3300 allows the display screen electrode be communicated with the transmitting and displaying drive signal with display driver circuit 3100.The display timing generator control circuit 3130 control row electrode driver and the collaborative works of column electrode driver of display driver circuit 3100, display screen 3400 is in show state.
In the touch-control detection period that shows between each frame, demonstration/touching signals gating circuit 3300 allows the display screen electrode be communicated with the transmission touching signals with touch-control circuit 3200.The data processing of touch-control circuit 3200 and time schedule controller 3223 control touch-control driving sources 3210 apply the touch-control pumping signal to the display screen electrode, touching signals testing circuit 3200 detects the variation of the touching signals of flow through each bar row electrode lines and each bar row electrode wires respectively, and the touching signals variation of flowing through reaches certain row electrode lines that imposes a condition and the row electrode wires is the polar curve that gets an electric shock to detect.By the point of crossing that the quilt that detects touches row electrode lines and touched the row electrode wires, determine the position of touch point on display screen 3400.
Embodiment two
The drive unit 4000 of a kind of touch control type flat-panel display as shown in Figure 4 comprises display driver circuit 4100, touch-control circuit 4200 and makes the display screen electrode not only be used for display driver but also be used for demonstration/touching signals gating circuit 4300 that touch-control surveys etc.; Described display driver circuit 4100 has display drive source 4110, shows signal is selected and output circuit 4120, display timing generator control circuit 4130 etc.; Described display drive source 4110 provides the energy of display driver for the display screen electrode; Described touch-control circuit 4200 has touch-control driving source 4210 and touching signals testing circuit 4220; Described touch-control driving source 4210 provides energy for the touching signals that applies to the display screen electrode; Described touching signals testing circuit 4220 is made up of touching signals sense channel 4221, data sampling channel 4222, data processing and time schedule controller 4223 etc.Display screen 4400 has row-column electrode.
At display time interval, demonstration/touching signals gating circuit 4300 allows the display screen electrode be communicated with the transmitting and displaying drive signal with display driver circuit 4100.The display timing generator control circuit 4130 control row electrode driver and the collaborative works of column electrode driver of display driver circuit 4100, display screen 4400 is in show state.
In the touch-control detection period that shows between each frame, demonstration/touching signals gating circuit 4300 allows the display screen electrode be communicated with the transmission touching signals with touch-control circuit 4200.The data processing of touch-control circuit 4200 and time schedule controller 4223 control touch-control driving sources 4210 apply the touch-control pumping signal to the display screen electrode, touching signals testing circuit 4200 detects the variation of the touching signals of flow through each bar row electrode lines and each bar row electrode wires respectively, and the touching signals variation of flowing through reaches certain row electrode lines that imposes a condition and the row electrode wires is the polar curve that gets an electric shock to detect.By the point of crossing that the quilt that detects touches row electrode lines and touched the row electrode wires, determine the position of touch point on display screen 4400.
Embodiment three
The drive unit 5000 of a kind of touch control type flat-panel display as shown in Figure 5 comprises display driver circuit 5100, touch-control circuit 5200 and makes the display screen electrode not only be used for display driver but also be used for demonstration/touching signals gating circuit 5300 that touch-control surveys etc.; Described display driver circuit 5100 has that display drive source 5110, shows signal are selected and output circuit 5120 and the control circuit 5400 that share with touch-control circuit 5200 etc.; Described display drive source 5110 provides the energy of display driver for the display screen electrode; Described control circuit 5400 plays the display timing generator control circuit in display driver circuit 5100; Described touch-control circuit 5200 has touch-control driving source 5210 and touching signals testing circuit 5220; Described touch-control driving source 5210 provides energy for the touching signals that applies to the display screen electrode; Control circuit 5400 that described touching signals testing circuit 5220 share by touching signals sense channel 5221, data sampling channel 5222 and with display driver circuit 5100 etc. is formed; Described control circuit 5400 plays data processing and time schedule controller in touch-control circuit 5200.Display screen 5500 has row-column electrode.
Display drive source 5110, the touch-control driving source 5210 of touch-control circuit 5200, the control circuit 5400 of display driver circuit 5100 are integrated on the same chip 5610; The shows signal of display driver circuit 5100 selected and touching signals sense channel 5221 and data sampling channel 5222, the demonstration/touching signals gating circuit 5300 of output circuit 5120, touch-control circuit 5200 are integrated on the same chip 5620; Circuit in the chip interconnects.Chip 5610 and chip 5620 interconnect, and the demonstration on the chip 5620/touching signals gating circuit 5300 connects each electrode of display screen 5500 again.
At display time interval, demonstration/touching signals gating circuit 5300 allows the display screen electrode be communicated with the transmitting and displaying drive signal with display driver circuit 5100.Control circuit 5400 control row electrode driver and the collaborative works of column electrode driver, display screen 5500 is in show state.
In the touch-control detection period that shows between each frame, demonstration/touching signals gating circuit 5300 allows the display screen electrode be communicated with the transmission touching signals with touch-control circuit 5200.Control circuit 5400 control touch-control driving source 5210 applies the touch-control pumping signal to the display screen electrode, touching signals testing circuit 5200 detects the variation of the touching signals of flow through each bar row electrode lines and each bar row electrode wires respectively, and the touching signals variation of flowing through reaches certain row electrode lines that imposes a condition and the row electrode wires is the polar curve that gets an electric shock to detect.By the point of crossing that the quilt that detects touches row electrode lines and touched the row electrode wires, determine the position of touch point on display screen 5500.
Chip 5610 and chip 5620 can be to be encapsulated in the same device, also can be individual packages separately.Line in the accompanying drawing is represented all possible line.
Embodiment four
The drive unit 6000 of a kind of touch control type flat-panel display as shown in Figure 6 comprises display driver circuit 6100, touch-control circuit 6200 and makes the display screen electrode not only be used for display driver but also be used for demonstration/touching signals gating circuit 6300 that touch-control is surveyed; Described display driver circuit 6100 has the drive source 6400 that share with touch-control circuit 6200, shows signal is selected and output circuit 6110 and the control circuit 6500 that share with touch-control circuit 6200 etc.; Described drive source 6400 plays display drive source in display driver circuit 6100, the energy of display driver is provided for the display screen electrode; Described control circuit 6500 plays the display timing generator control circuit in display driver circuit 6100; Described touch-control circuit 6200 has drive source 6400 and the touching signals testing circuit 6210 that share with display driver circuit 6100; Described drive source 6400 plays the touch-control driving source in touch-control circuit 6200, for the touching signals that applies to the display screen electrode provides energy; Control circuit 6500 that described touching signals testing circuit 6210 share by touching signals sense channel 6211, data sampling channel 6212 and with display driver circuit 6100 etc. is formed; Control circuit 6500 plays the effect of data processing and time schedule controller in touch-control circuit 6200.Display screen 6600 has row-column electrode.
Drive source 6400 and control circuit 6500 that display driver circuit 6100 and touch-control circuit 6200 are share are integrated on the same chip 6710; The shows signal of display driver circuit 6100 selected and touching signals sense channel 6211 and data sampling channel 6212, the demonstration/touching signals gating circuit 6300 of output circuit 6110, touch-control circuit 6200 are integrated on the same chip 6720; Circuit in the chip interconnects.Chip 6710 and chip 6720 interconnect, and the demonstration on the chip 6720/touching signals gating circuit 6300 connects each electrode of display screen 6600 again.
At display time interval, demonstration/touching signals gating circuit 6300 allows the display screen electrode be communicated with the transmitting and displaying drive signal with display driver circuit 6100.Control circuit 6500 control row electrode driver and the collaborative works of column electrode driver, display screen 6600 is in show state.
In the touch-control detection period that shows between each frame, demonstration/touching signals gating circuit 6300 allows the display screen electrode be communicated with the transmission touching signals with touch-control circuit 6200.Control circuit 6500 controls apply the touch-control pumping signal with the drive source 6400 that display driver circuit 6100 share to the display screen electrode, touching signals testing circuit 6210 detects the variation of the touching signals of flow through each bar row electrode lines and each bar row electrode wires respectively, and the touching signals variation of flowing through reaches certain row electrode lines that imposes a condition and the row electrode wires is the polar curve that gets an electric shock to detect.By the point of crossing that the quilt that detects touches row electrode lines and touched the row electrode wires, determine the position of touch point on display screen 6600.
Embodiment five
The drive unit 7000 of a kind of touch control type flat-panel display as shown in Figure 7 comprises display driver circuit 7100, touch-control circuit 7200 and makes the display screen electrode not only be used for display driver but also be used for demonstration/touching signals loaded circuit 7300 that touch-control surveys etc.; Described display driver circuit 7100 has that display drive source 7110, shows signal are selected and output circuit 7120 and the control circuit 7400 that share with touch-control circuit 7200 etc.; Described display drive source 7110 provides the energy of display driver for the display screen electrode; Described control circuit 7400 plays the display timing generator control circuit in display driver circuit 7100; Described touch-control circuit 7200 has touch-control driving source 7210 and touching signals testing circuit 7220; Described touch-control driving source 7210 provides energy for the touching signals that applies to the display screen electrode; Control circuit 7400 that described touching signals testing circuit 7220 share by touching signals sense channel 7221, data sampling channel 7222 and with display driver circuit 7100 etc. is formed; Described control circuit 7400 plays data processing and time schedule controller in touch-control circuit 7200.Display screen 7500 has row-column electrode.
Demonstration/touching signals loaded circuit 7300 allows the display screen electrode not only be communicated with display driver circuit 7100, but also to be communicated with touch-control circuit 7200, simultaneously transmitting and displaying drive signal and touching signals.Control circuit 7400 control row electrode driver and the collaborative works of column electrode driver allow display screen 7500 both be in show state; Control circuit 7400 is controlled touch-control driving source 7210 again and is applied the touch-control pumping signal to the display screen electrode, touching signals testing circuit 7200 detects the variation of the touching signals of flow through each bar row electrode lines and each bar row electrode wires respectively, allow display screen 7500 also be in the touch-control acquisition mode simultaneously, the touching signals variation of flowing through reaches certain row electrode lines that imposes a condition and the row electrode wires is the polar curve that gets an electric shock to detect, by the point of crossing that the quilt that detects touches row electrode lines and touched the row electrode wires, determine the position of touch point on display screen 7500.
Embodiment six
The drive unit 8000 of a kind of touch control type flat-panel display as shown in Figure 8 comprises display driver circuit 8100, touch-control circuit 8200 and makes the display screen electrode not only be used for display driver but also be used for demonstration/touching signals gating circuit 8300 that touch-control surveys etc.; Described display driver circuit 8100 has that display drive source 8110, shows signal are selected and output circuit 8120 and the control circuit 8400 that share with touch-control circuit 8200 etc.; Described display drive source 8110 provides the energy of display driver for the display screen electrode; Described control circuit 8400 plays the display timing generator control circuit in display driver circuit 8100; Described touch-control circuit 8200 has touch-control driving source 8210 and touching signals testing circuit 8220; Described touch-control driving source 8210 provides energy for the touching signals that applies to the display screen electrode; Control circuit 8400 that described touching signals testing circuit 8220 share by touching signals sense channel 8221, data sampling channel 8222 and with display driver circuit 8100 etc. is formed; Described control circuit 8400 plays data processing and time schedule controller in touch-control circuit 8200.Display screen 8500 has row-column electrode.
At display time interval, demonstration/touching signals gating circuit 8300 allows the display screen electrode be communicated with the transmitting and displaying drive signal with display driver circuit 8100.Control circuit 8400 control row electrode driver and the collaborative works of column electrode driver, display screen 8500 is in show state.
In the touch-control detection period that shows between each frame, demonstration/touching signals gating circuit 8300 allows the display screen electrode be communicated with the transmission touching signals with touch-control circuit 8200.Control circuit 8400 control touch-control driving source 8210 applies the touch-control pumping signal to the display screen electrode, touching signals testing circuit 8200 detects the variation of the touching signals of flow through each bar row electrode lines and each bar row electrode wires respectively, and the touching signals variation of flowing through reaches certain row electrode lines that imposes a condition and the row electrode wires is the polar curve that gets an electric shock to detect.By the point of crossing that the quilt that detects touches row electrode lines and touched the row electrode wires, determine the position of touch point on display screen 8500.Line in the accompanying drawing is represented all possible line.
Embodiment seven
The drive unit 9000 of a kind of touch control type flat-panel display as shown in Figure 9 comprises display driver circuit 9100, touch-control circuit 9200 and makes the display screen electrode not only be used for display driver but also be used for demonstration/touching signals gating circuit 9300 that touch-control is surveyed; Described display driver circuit 9100 has the drive source 9400 that share with touch-control circuit 9200, shows signal is selected and output circuit 9110 and the control circuit 9500 that share with touch-control circuit 9200 etc.; Described drive source 9400 plays display drive source in display driver circuit 9100, the energy of display driver is provided for the display screen electrode; Described control circuit 9500 plays the display timing generator control circuit in display driver circuit 9100; Described touch-control circuit 9200 has drive source 9400 and the touching signals testing circuit 9210 that share with display driver circuit 9100; Described drive source 9400 plays the touch-control driving source in touch-control circuit 9200, for the touching signals that applies to the display screen electrode provides energy; Control circuit 9500 that described touching signals testing circuit 9210 share by touching signals sense channel 9211, data sampling channel 9212 and with display driver circuit 9100 etc. is formed; Control circuit 9500 plays the effect of data processing and time schedule controller in touch-control circuit 9200.Display screen 9600 has row-column electrode.
Drive source 9400 and control circuit 9500 that display driver circuit 9100 and touch-control circuit 9200 are share, the shows signal of display driver circuit 9100 is selected and output circuit 9110, the touching signals sense channel 9211 of touch-control circuit 9200 and data sampling channel 9212, demonstration/touching signals gating circuit 9300 are integrated on the same chip 9700, and the circuit in the chip interconnects.Demonstration on the chip 9700/touching signals gating circuit 9300 connects each electrode of display screen 9600 again.
At display time interval, demonstration/touching signals gating circuit 9300 allows the display screen electrode be communicated with the transmitting and displaying drive signal with display driver circuit 9100.Control circuit 9500 control row electrode driver and the collaborative works of column electrode driver, display screen 9600 is in show state.
In the touch-control detection period that shows between each frame, demonstration/touching signals gating circuit 9300 allows the display screen electrode be communicated with the transmission touching signals with touch-control circuit 9200.Control circuit 9500 controls apply the touch-control pumping signal with the drive source 9400 that display driver circuit 9100 share to the display screen electrode, touching signals testing circuit 9200 detects the variation of the touching signals of flow through each bar row electrode lines and each bar row electrode wires respectively, and the touching signals variation of flowing through reaches certain row electrode lines that imposes a condition and the row electrode wires is the polar curve that gets an electric shock to detect.By the point of crossing that the quilt that detects touches row electrode lines and touched the row electrode wires, determine the position of touch point on display screen 9600.Line in the accompanying drawing is represented all possible line.
Embodiment eight
The drive unit 10000 of a kind of touch control type flat-panel display as shown in figure 10 comprises display driver circuit 10100, touch-control circuit 10200 and makes the display screen electrode not only be used for display driver but also be used for demonstration/touching signals gating circuit 10300 that touch-control is surveyed; Described display driver circuit 10100 has that display drive source 10110, shows signal are selected and output circuit 10120 and data processing of share with touch-control circuit 10200 and sequential control circuit 10400 etc.; Described drive source 10110 provides the energy of display driver for the display screen electrode; Described data processing and sequential control circuit 10400 play the display timing generator control circuit in display driver circuit 10100; The touch-control driving source that described touch-control circuit 10200 has the touching signals testing circuit and produced by data processing and sequential control circuit 10400; The touch-control driving source that described data processing and sequential control circuit 10400 produce provides energy for the touching signals that applies to the display screen electrode; The data processing that described touching signals testing circuit share by touching signals sense channel 10211, data sampling channel 10212 and with display driver circuit 10100 and sequential control circuit 10400 etc. are formed; Data processing and sequential control circuit 10400 also play the effect of data processing and time schedule controller in touch-control circuit 10200.Display screen 10500 has row-column electrode.
Be integrated on the same chip 10610 with the display drive source 10110 of display driver circuit 10100 with data processing and sequential control circuit 10400 that touch-control circuit 10200 share; The shows signal of display driver circuit 10100 selected and touching signals sense channel 10211 and data sampling channel 10212, the demonstration/touching signals gating circuit 10300 of output circuit 10110, touch-control circuit 10200 are integrated on the same chip 10620; Circuit in the chip interconnects.Chip 10610 and chip 10620 interconnect, and the demonstration on the chip 10620/touching signals gating circuit 10300 connects each electrode of display screen 10500 again.
At display time interval, demonstration/touching signals gating circuit 10300 allows the display screen electrode be communicated with the transmitting and displaying drive signal with display driver circuit 10100.Data processing and sequential control circuit 10400 control row electrode driver and the collaborative works of column electrode driver, display screen 10500 is in show state.
In the touch-control detection period that shows between each frame, demonstration/touching signals gating circuit 10300 allows the display screen electrode be communicated with the transmission touching signals with touch-control circuit 10200.Data processing and sequential control circuit 10400 produce the touch-control pumping signal that applies to the display screen electrode, the touching signals testing circuit detects the variation of the touching signals of flow through each bar row electrode lines and each bar row electrode wires respectively, and the touching signals variation of flowing through reaches certain row electrode lines that imposes a condition and the row electrode wires is the polar curve that gets an electric shock to detect.By the point of crossing that the quilt that detects touches row electrode lines and touched the row electrode wires, determine the position of touch point on display screen 10500.
Above content be in conjunction with concrete preferred implementation to further describing that the present invention did, can not assert that concrete enforcement of the present invention is confined to these explanations.For the general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, can also make some simple deduction or replace, all should be considered as belonging to protection scope of the present invention.
Claims (9)
1. the drive unit of a touch control type flat-panel display, be meant the driving circuit section of touch control type flat-panel display, touch control type flat-panel display comprises panel display screen and driving circuit, driving circuit has display driver circuit and touch-control circuit, and makes the display screen electrode not only be used for display driver but also be used for demonstration/touching signals gating circuit or the demonstration/touching signals loaded circuit that touch-control is surveyed; Described display driver circuit has display drive source, shows signal selection and output circuit, display timing generator control circuit; Described touch-control circuit has touch-control driving source and touching signals testing circuit, and the touching signals testing circuit is made up of input passage, data sampling channel, data processing and time schedule controller; Described input passage has touching signals sampling element, impact damper, amplifying circuit; Described data sampling channel has analog to digital conversion circuit; Described data processing and time schedule controller are the central processing units with data operation ability, data input and output interfaces; Described central processing unit has Control Software, data processing software; Described demonstration/touching signals gating circuit makes the display screen electrode or is communicated with the transmitting and displaying drive signal with display driver circuit, or is communicated with the transmission touching signals with touch-control circuit, and display driver and touch-control are surveyed time division multiplex display screen electrode; Described demonstration/touching signals loaded circuit makes display screen electrode transmitting and displaying drive signal and touching signals simultaneously, and display driver and touch-control are surveyed shared display screen electrode simultaneously; Have column electrode group and row electrode group on the display screen substrate, the touch-control driving source of touch-control circuit applies touching signals by demonstration/touching signals gating circuit or demonstration/touching signals loaded circuit to certain the strip electrode line in column electrode group or the row electrode group, the touching signals testing circuit of touch-control circuit is by detecting the variation of touching signals on this electrode wires, and whether survey this electrode wires touched; It is characterized in that:
The all or part of circuit of described display driver circuit, with all or part of circuit of demonstration/touching signals gating circuit and all or part of circuit of touch-control circuit be to be integrated on the same chip; Or all or part of circuit of described display driver circuit, with all or part of circuit of demonstration/touching signals loaded circuit and all or part of circuit of touch-control circuit be to be integrated on the same chip.
2. the drive unit of a touch control type flat-panel display, be meant the driving circuit section of touch control type flat-panel display, touch control type flat-panel display comprises panel display screen and driving circuit, driving circuit has display driver circuit and touch-control circuit, and makes the display screen electrode not only be used for display driver but also be used for demonstration/touching signals gating circuit or the demonstration/touching signals loaded circuit that touch-control is surveyed; Described display driver circuit has display drive source, shows signal selection and output circuit, display timing generator control circuit; Described touch-control circuit has touch-control driving source and touching signals testing circuit, and the touching signals testing circuit is made up of input passage, data sampling channel, data processing and time schedule controller; Described input passage has touching signals sampling element, impact damper, amplifying circuit; Described data sampling channel has analog to digital conversion circuit; Described data processing and time schedule controller are the central processing units with data operation ability, data input and output interfaces; Described central processing unit has Control Software, data processing software; Described demonstration/touching signals gating circuit makes the display screen electrode or is communicated with the transmitting and displaying drive signal with display driver circuit, or is communicated with the transmission touching signals with touch-control circuit, and display driver and touch-control are surveyed time division multiplex display screen electrode; Described demonstration/touching signals loaded circuit makes display screen electrode transmitting and displaying drive signal and touching signals simultaneously, and display driver and touch-control are surveyed shared display screen electrode simultaneously; Have column electrode group and row electrode group on the display screen substrate, the touch-control driving source of touch-control circuit applies touching signals by demonstration/touching signals gating circuit or demonstration/touching signals loaded circuit to certain the strip electrode line in column electrode group or the row electrode group, the touching signals testing circuit of touch-control circuit is by detecting the variation of touching signals on this electrode wires, and whether survey this electrode wires touched; It is characterized in that:
The all or part of circuit of described display driver circuit, with all or part of circuit of demonstration/touching signals gating circuit and all or part of circuit of touch-control circuit be to be encapsulated in the same device; Or all or part of circuit of described display driver circuit, with all or part of circuit of demonstration/touching signals loaded circuit and all or part of circuit of touch-control circuit be to be encapsulated in the same device.
3. the drive unit of a kind of touch control type flat-panel display according to claim 1 and 2 is characterized in that:
The display timing generator control circuit of described display driver circuit and the data processing of touch-control circuit and time schedule controller are to share same circuit.
4. the drive unit of a kind of touch control type flat-panel display according to claim 1 and 2 is characterized in that:
The all or part of circuit of described display driver circuit, with demonstration/touching signals gating circuit or demonstration/touching signals loaded circuit, and all or part of circuit of all or part of circuit of the input passage of touch-control circuit, data sampling channel is to be integrated on the same chip or to be encapsulated in the same device.
5. the drive unit of a kind of touch control type flat-panel display according to claim 1 and 2 is characterized in that:
The all or part of circuit of described display driver circuit, with demonstration/touching signals gating circuit or demonstration/touching signals loaded circuit, and input passage, data sampling channel, data processing and the time schedule controller of touch-control circuit are to be integrated on the same chip or to be encapsulated in the same device.
6. the drive unit of a kind of touch control type flat-panel display according to claim 1 and 2 is characterized in that:
The all or part of circuit of described display driver circuit, with demonstration/touching signals gating circuit or demonstration/touching signals loaded circuit, and input passage, data sampling channel, data processing and the time schedule controller of touch-control circuit, touch-control driving source are to be integrated on the same chip or to be encapsulated in the same device.
7. the drive unit of a kind of touch control type flat-panel display according to claim 1 and 2 is characterized in that:
The all or part of circuit of described display driver circuit, with demonstration/touching signals gating circuit or demonstration/touching signals loaded circuit, and the input passage of touch-control circuit, touch-control driving source are to be integrated on the same chip or to be encapsulated in the same device.
8. the drive unit of a kind of touch control type flat-panel display according to claim 1 and 2 is characterized in that:
The all or part of circuit of described display driver circuit, with demonstration/touching signals gating circuit or demonstration/touching signals loaded circuit, and the input passage of touch-control circuit, data sampling channel, touch-control driving source are to be integrated on the same chip or to be encapsulated in the same device.
9. the drive unit of a kind of touch control type flat-panel display according to claim 1 and 2 is characterized in that:
Touch-control driving source, data processing and the time schedule controller of described touch-control circuit are to share same circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201777888U CN201622819U (en) | 2009-09-21 | 2009-09-21 | Driving device for touch control FPD |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201777888U CN201622819U (en) | 2009-09-21 | 2009-09-21 | Driving device for touch control FPD |
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| CN201622819U true CN201622819U (en) | 2010-11-03 |
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| CN2009201777888U Expired - Fee Related CN201622819U (en) | 2009-09-21 | 2009-09-21 | Driving device for touch control FPD |
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| CN102478998A (en) * | 2010-11-25 | 2012-05-30 | 乐金显示有限公司 | Display device having touch screen panel |
| CN103970341A (en) * | 2013-02-01 | 2014-08-06 | 丽智科技股份有限公司 | Touch display driving circuit capable of reflecting CPU command |
| WO2014194829A1 (en) * | 2013-06-08 | 2014-12-11 | 深圳市联思精密机器有限公司 | Touch control type flat-panel display |
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| CN107329603A (en) * | 2016-04-29 | 2017-11-07 | 北京小米移动软件有限公司 | Touch-control display module and electronic equipment |
| WO2018192408A1 (en) * | 2017-04-17 | 2018-10-25 | 京东方科技集团股份有限公司 | Display panel, display device and method of driving display panel |
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| US9804700B2 (en) | 2010-11-25 | 2017-10-31 | Lg Display Co., Ltd. | Display device having touch screen panel |
| CN102478998A (en) * | 2010-11-25 | 2012-05-30 | 乐金显示有限公司 | Display device having touch screen panel |
| CN102478998B (en) * | 2010-11-25 | 2015-07-22 | 乐金显示有限公司 | Display device having touch screen panel |
| CN103970341B (en) * | 2013-02-01 | 2017-03-01 | 丽智科技股份有限公司 | Touch display driving circuit capable of reflecting CPU command |
| CN103970341A (en) * | 2013-02-01 | 2014-08-06 | 丽智科技股份有限公司 | Touch display driving circuit capable of reflecting CPU command |
| CN104238787A (en) * | 2013-06-08 | 2014-12-24 | 深圳市联思精密机器有限公司 | Touch control type flat panel display |
| WO2014194829A1 (en) * | 2013-06-08 | 2014-12-11 | 深圳市联思精密机器有限公司 | Touch control type flat-panel display |
| CN104238787B (en) * | 2013-06-08 | 2019-05-14 | 深圳市联思精密机器有限公司 | A kind of touch control type flat-panel display |
| CN105049675A (en) * | 2015-06-30 | 2015-11-11 | 广东实联医疗器械有限公司 | Image processing enhancing and display driving circuit for medical endoscope |
| CN107329603A (en) * | 2016-04-29 | 2017-11-07 | 北京小米移动软件有限公司 | Touch-control display module and electronic equipment |
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| CN111158054A (en) * | 2019-12-31 | 2020-05-15 | 浙江大学 | Passive object detection display system and method based on LED screen |
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