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WO2008050507A1 - Ecran tactile intégrant un affichage - Google Patents

Ecran tactile intégrant un affichage Download PDF

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Publication number
WO2008050507A1
WO2008050507A1 PCT/JP2007/061994 JP2007061994W WO2008050507A1 WO 2008050507 A1 WO2008050507 A1 WO 2008050507A1 JP 2007061994 W JP2007061994 W JP 2007061994W WO 2008050507 A1 WO2008050507 A1 WO 2008050507A1
Authority
WO
WIPO (PCT)
Prior art keywords
touch panel
electrode
display device
substrate
liquid crystal
Prior art date
Application number
PCT/JP2007/061994
Other languages
English (en)
Japanese (ja)
Inventor
Jun Nakata
Asahi Yamato
Kazuki Takahashi
Original Assignee
Sharp Kabushiki Kaisha
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sharp Kabushiki Kaisha filed Critical Sharp Kabushiki Kaisha
Publication of WO2008050507A1 publication Critical patent/WO2008050507A1/fr

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Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0445—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer

Definitions

  • the present invention relates to a capacitive touch panel, and more specifically to a display device integrated touch panel integrated with a display device.
  • liquid crystal display devices having a touch panel as an input device on a liquid crystal panel are widely used. It is like that.
  • a touch panel integrated with a resistance film type display device in which two substrates on which a resistance film such as ITO is formed are bonded via a spacer.
  • FIG. 7 is a cross-sectional view showing a conventional resistive film type display device-integrated touch panel.
  • the display device-integrated touch panel is composed of a liquid crystal display device 100 and a touch nonel 200, which are bonded to each other with an adhesive 110 such as a double-sided tape.
  • the liquid crystal display device 100 includes substrates 101 and 102 facing each other, electrodes 104 and 105 disposed on opposing surfaces of these substrates 101 and 102, and a gap control sandwiched between these electrodes 104 and 105. Spacer 105, liquid crystal 107 filled between electrodes 104 and 105, and sealing material 103 that seals liquid crystal 107 and bonds substrates 101 and 102 together.
  • the Tacchinone nore 200 includes substrates 201 and 202 facing each other, electrodes 204 and 205 disposed on the facing surfaces of these substrates 201 and 202 by vapor deposition or sputtering, and these electrodes 204 A liquid crystal 206 filled between 205 and a sealing material 203 for sealing the liquid crystal 206 and bonding the substrates 201 and 202 are provided.
  • the substrate 202 is a substrate having a coordinate input surface.
  • Patent Document 4 a so-called electrostatic capacitance type touch panel is disclosed in Patent Document 4.
  • terminals for detecting charges are provided at the four corners of the conductive film provided on the touch panel.
  • a capacitance is formed between the finger (or pen) and the conductive film, and the amount of electric charge that flows from the finger (or pen) to each terminal due to this capacitance. It is possible to detect the sitting amount.
  • Patent Document 1 Japanese Published Patent Publication “Japanese Unexamined Patent Publication No. 2006-11522 (Publication Date: January 12, 2006)”
  • Patent Document 2 Japanese Published Patent Publication “Japanese Unexamined Patent Publication No. 2000-275621 (Publication Date: October 6, 2000)”
  • Patent Document 3 Japanese Patent Publication “JP 2000-305715 (Publication date: November 2, 2000)”
  • Patent Document 4 Japanese Published Patent Publication “JP 2005-301974 Publication (Publication Date: October 27, 2005)”
  • FIG. 8 is a cross-sectional view showing a capacitive display device-integrated touch panel. Since the configuration of the liquid crystal display device portion of this display device-integrated touch panel is the same as that in FIG. 7, the same reference numerals as those in FIG.
  • the touch panel includes a substrate 250 connected to the substrate 102 of the liquid crystal display device by an adhesive 110, a conductive film 251 provided on the substrate 250, a protective sheet 252 covering the conductive film 251, and a protective sheet And a sheet agent 253 provided on the outer periphery of the conductive film 251 for bonding the 252 and the substrate 102 to each other.
  • the principle of coordinate detection of this capacitive display device-integrated touch panel is to detect the capacitance formed between the finger (or pen) and the conductive film 251. Thus, the coordinates are detected.
  • a parasitic capacitance 180 as shown in FIG. 8 is generated between the conductive film 251 and the electrode 105.
  • This parasitic capacitance 180 causes a decrease in detection coordinate accuracy.
  • the entire structure is distorted due to the stress, so that the size of the parasitic capacitance 180 changes.
  • the distortion in the adhesive 110 is large.
  • the change in the size of the parasitic capacitance 180 changes depending on the position of the input coordinates and the applied stress. There is a problem that such a change in the parasitic capacitance 180 has a great influence on the accuracy of the detected coordinates. That is, an error occurs between the position where the finger or the like actually touched and the detection position.
  • the present invention has been made in view of the above problems, and an object of the present invention is to provide a capacitance type display device-integrated touch panel with improved coordinate position detection accuracy. is there.
  • the display device-integrated touch panel of the present invention includes a display device including a pair of substrates facing each other and each having a first electrode on an opposing surface, and a second electrode.
  • a capacitance type touch panel that detects a position touched by an external cover using a capacitance formed between the second electrode and the pressed object by external pressure, and
  • the second electrode is provided in contact with one of the pair of substrates.
  • the display device-integrated touch panel of the present invention includes a display device and a touch panel. Further, for example, when the touch panel is touched with a pressing object such as a finger or a pen (the external force is also touched), a capacitance is formed between the finger or the pen and the second electrode. By detecting this capacitance, it is possible to detect the position coordinates touched from the outside.
  • the second electrode is provided in contact with one of the pair of substrates provided in the display device. That is, the substrate is sandwiched between the first electrode and the second electrode. It becomes the composition. Even if the substrate is pinched by an external pressure, the thickness in the short direction hardly changes. Therefore, when operating the touch panel, it is possible to prevent the distance between the first electrode and the second electrode of the display-side substrate from changing.
  • a touch panel integrated with a display device of the present invention includes a substrate, a first electrode provided on one surface of the substrate, and the other surface of the substrate. And a second electrode for detecting a position in contact with the external force using an electrostatic capacitance formed between the pressed object and the pressed object by pressing of the external force.
  • the display device-integrated touch panel of the present invention includes a display device and a touch panel. Further, for example, when the touch panel is touched with a pressing object such as a finger or a pen (the external force is also touched), a capacitance is formed between the finger or the pen and the second electrode. By detecting this capacitance, it is possible to detect the position coordinates touched from the outside.
  • the substrate, the first electrode provided on one surface of the substrate, and the other surface of the substrate are provided in contact with the pressed object by pressing with an external force.
  • the thickness of the substrate hardly changes even if the substrate is pinched by external pressure. Therefore, when operating the touch panel, it is possible to prevent the distance between the first electrode and the second electrode of the display-side substrate from changing.
  • the second electrode is ITO.
  • ITO refers to indium oxide doped with tin. According to the above configuration Since the second electrode is made of ITO, the electrical resistance can be reduced and the transmittance can be increased.
  • the second electrode is covered with a protective film! /.
  • the second electrode is covered with the protective film.
  • the second electrode can also protect external environmental forces such as acid.
  • the film and the second electrode are separated from each other!
  • the film and the second electrode are separated from each other. Therefore, when operating the touch panel, the stress applied to the second electrode can be reduced as compared with the case where the film and the second electrode are in direct contact. Therefore, the change in the parasitic capacitance generated between the second electrode and the first electrode can be further reduced.
  • the pair of substrates is a glass substrate, and a refractive index difference force air between the film and the second electrode is between the film and the second electrode. It is preferable that a flowable material is disposed that is smaller than the refractive index difference.
  • the pair of substrates is a glass substrate, and a refractive index difference between the film and the second electrode is smaller than a refractive index difference between the glass substrate and air. Fluid material is provided. Therefore, the visibility of the display device can be improved as compared with the case where nothing is disposed between the film and the second electrode (that is, when air is disposed).
  • FIG. 1 shows an embodiment of the present invention and is a cross-sectional view showing a touch panel integrated with a liquid crystal display device.
  • FIG. 2 is a diagram showing the basic principle of a position detection method using a capacitance method in the case of a one-dimensional case.
  • 3 is a plan view of a touch panel used for the basic principle shown in FIG.
  • FIG. 4 is a diagram showing the basic principle of a position detection method based on a capacitance method in a two-dimensional case.
  • ⁇ 5 A diagram showing an embodiment of the present invention and a schematic diagram showing a liquid crystal display integrated touch panel It is.
  • FIG. 6 is a cross-sectional view showing a liquid crystal display device integrated touch panel according to an embodiment of the present invention.
  • FIG. 7 is a cross-sectional view showing a conventional touch panel integrated with a resistance film type display device.
  • FIG. 8 is a cross-sectional view showing a capacitive panel integrated display touch panel as a comparative example of the present invention.
  • FIG. 1 is a cross-sectional view showing a liquid crystal display integrated touch panel according to the present embodiment.
  • the liquid crystal display device integrated touch panel according to the present embodiment includes a liquid crystal panel unit (display device) 1 and a touch panel unit (touch panel) 10.
  • the liquid crystal panel unit 1 includes a lower substrate 2, an upper substrate 3, a lower electrode (first electrode) 4, an upper electrode (first electrode) 5, a spacer 6, a liquid crystal 7, and a sealing material 8. I have.
  • the configuration of the liquid crystal panel unit 1 will be described more specifically.
  • the liquid crystal panel unit 1 has a lower substrate 2 and an upper substrate 3 that are opposed to each other with the liquid crystal 7 interposed therebetween. It is configured as The upper substrate 1 arranged on the observation side is provided with a translucent upper electrode 3 and an alignment film (not shown) on the surface on the liquid crystal layer side.
  • the lower substrate 4 arranged opposite to the observation side is provided with a translucent lower electrode 4 and an alignment film (not shown) on the surface on the liquid crystal layer side. The gap between these two substrates 2 and 3 is uniformly held by the spacer 6.
  • the liquid crystal panel section 1 can be either a passive matrix type or an active matrix type.
  • the liquid crystal orientation can be either a vertical type, a VAN type, an STN type, a ferroelectric type, or an antiferroelectric type. Any of the induction type may be used.
  • a color filter can be arranged on any one of the two substrates 2 and 3 to perform color display.
  • a reflective liquid crystal display device may be formed by forming a reflective film on the lower substrate 4.
  • a translucent liquid crystal display device is formed by forming a transparent portion such as an opening or a slit in the reflective film. You can configure it.
  • the touch panel unit 10 includes the upper substrate 2, the conductive film (second electrode) 11, the protective film 12, and the sealing material 13.
  • the touch panel unit 10 uses the upper substrate 3 of the liquid crystal panel unit 1 as a base of the touch panel unit 10. On the observation side of the upper substrate 3, a conductive film 11 and a protective film 12 are provided in this order. Further, the protective film 12 and the upper substrate 2 are configured to be bonded and integrated with each other by a sealing material 13 provided around the conductive film 11. Further, in FIG. 1, the capacitance generated between the upper electrode 5 and the conductive film 11 is indicated by reference numeral 18.
  • the conductive film 11 the upper electrode 5, and the lower electrode 4, for example, ITO (Indium Tin Oxide) is preferably used.
  • ITO Indium Tin Oxide
  • the present invention is not limited to this, and an IO (Indium Oxide) film, A newly developed IZO (Indium Zinc Oxide) film may be used instead of a T 0 (Tin Oxide) film.
  • IO Indium Oxide
  • IZO Indium Zinc Oxide
  • T 0 Tin Oxide
  • low specific resistance obtained from ultra-thin precious metal films such as gold, silver, palladium, etc., or transparent electrodes may be used.
  • terminals for detecting charges are provided at the four corners of the conductive film 11. It is.
  • a mother substrate for the lower substrate and a mother substrate for the upper substrate which are the lower substrate 2 and the upper substrate 3 of the liquid crystal panel unit 1, are prepared.
  • the lower electrode 4 and the alignment film are formed in the region that becomes the lower substrate 2 of the mother substrate for the lower substrate, and the upper electrode 5 and the alignment film are formed in the region that becomes the upper substrate 3 of the mother substrate for the upper substrate.
  • annular sealing material 8 is formed by a printing method on the periphery of the region to be the lower substrate 2 of the mother substrate for the lower substrate and the region to be the upper substrate 3 of the mother substrate for the upper substrate.
  • the formed sealing material 8 is provided with an injection port for injecting the liquid crystal 7.
  • a spacer 6 for gap control is arranged on one mother board. Subsequently, these two mother substrates are made to face each other, and one mother substrate is pressed and bonded to the other mother substrate.
  • these two mother substrates are cut along the regions to be the upper substrate 3 and the lower substrate 2, and the liquid crystal 7 is also injected into the injection loca. Thereafter, the injection port is filled with a sealing material such as mold resin, and the sealing material is cured to seal the injection port.
  • a sealing material such as mold resin
  • a conductive film 11 is formed on the opposite side of the upper substrate 3 from the lower substrate 2 and on the position corresponding to the upper electrode 5 and the lower electrode 4 by vapor deposition or sputtering. Thereafter, a sealing material 13 is arranged around the conductive film 11, and the conductive film 11 is covered with a protective film 12 attached to the upper substrate 3 by the sealing material 13.
  • the liquid crystal display device-integrated touch panel of the present embodiment can be formed.
  • the conductive film 11 may be formed before the two mother glass substrates are bonded together.
  • the conductive film 11 may be formed immediately before or immediately after the upper electrode 5 is formed on the upper substrate 3. Thereby, manufacturing cost can be reduced.
  • charges are formed at the four corners of the conductive film of the touch panel.
  • a terminal is provided for detecting.
  • the sitting amount can be detected from the amount of charge flowing from the finger (or pen) to each terminal by the electrostatic capacitance 18 formed between the finger (or pen) and the conductive film. More specifically, when an electrostatic capacitance is formed between the finger and the conductive film, the coordinates can be detected from the ratio of the amount of charge flowing into each terminal of the finger force.
  • the pen is flat and has a conductive material force.
  • FIG. 2 shows a one-dimensional resistor sandwiched between electrodes A and B.
  • the touch panel of the present embodiment has a two-dimensional spread and has the same function as this one-dimensional resistor.
  • Each of the electrode A and the electrode B is connected to a resistor r for current / voltage conversion.
  • the electrodes ⁇ ⁇ ⁇ are connected to the position detection circuit via a switching circuit.
  • a voltage (AC e) having the same homologous potential is applied between the electrode ⁇ and the ground and between the electrode B and the ground in the position detection mode. At this time, since electrode A and electrode B are always at the same potential, no current flows between electrode A and electrode B.
  • Rl / R2 (2r / R + l) i2 / (il + i2) -r / R- ⁇ Equation 3
  • R1ZR can be determined from Equation 3 above by determining the current il flowing through electrode A and i2 flowing through electrode B by measurement. You can ask for it. Note that R1ZR does not depend on the impedance Z including the person who touches the finger. Therefore, as long as the impedance is not zero or infinite, Equation 3 above holds, and changes and conditions due to people and materials can be ignored. Next, the case where the relationship in the one-dimensional case is expanded to the two-dimensional case will be described with reference to FIG. 3 and FIG. As shown in Fig. 3, four electrodes C, D, E, and F are formed at the four corners of the touch panel. These electrodes C to F are connected to a position detection circuit.
  • an AC voltage having the same homologous potential is applied to electrodes A, B, C, and D at the four corners of touch panel unit 10.
  • Let il, i2, i3, and i4 be the currents that flow through the four corners of the touch panel when touched by a finger.
  • the following equation is obtained by the same calculation as the above calculation.
  • X is the X coordinate of the contact position on the counter electrode film
  • Y is the Y coordinate of the contact position on the counter electrode film
  • Kl is the offset
  • k2 is the magnification.
  • kl and k2 are constants that do not depend on human impedance.
  • the ITO film that is the main part of the capacitive touch panel is provided on the outermost surface of the display device (for example, the color filter surface in a liquid crystal display).
  • (Conductive film 11) is formed by a deposition method such as vapor deposition or sputtering.
  • a protective filter (protective film 12) is pasted on the ITO film (conductive film 11).
  • the upper substrate 3 is shared in the configurations of the liquid crystal panel unit 1 and the touch panel unit 10. Therefore, when operating the touch panel 10, the distance between the upper electrode 3 and the conductive film 11 does not change even if stress is applied by a finger or the like. . Even if a large stress is applied, the upper substrate 3 stagnates and the structure of the touch panel section 10 is distorted, the distance between the upper electrode 5 and the conductive film 11 does not change. Since the distance between the upper electrode 5 and the conductive film 11 does not change, the parasitic capacitance generated between the upper electrode 5 and the conductive film 11 does not change. This is true regardless of the position where the stress is applied. Therefore, the detection accuracy for detecting the coordinate position can be increased.
  • the adhesive layer (see Fig. 8) that bonds the substrate to the upper substrate 3 of the liquid crystal panel unit 1 can reduce the overall thickness of the display panel integrated touch panel. In addition, it is possible to reduce the weight of the substrate and the adhesive layer.
  • the upper substrate 3 of the liquid crystal panel unit 1 is used as the base of the conventional touch panel unit 10.
  • the essential part of the present embodiment is that the distance between the conductive film 11 of the touch panel section 10 and the upper electrode 5 of the liquid crystal panel section 1 is the stress from the outside, especially the operation. Any other configuration may be used as long as it can be prevented from being changed by the stress applied from the finger of the time.
  • a substrate used as a base of the touch panel unit 10 that has been conventionally used may be used as the upper substrate of the liquid crystal panel unit 1.
  • the present invention is not limited to the liquid crystal display device, and any display device that has a substrate on the surface of the display device and has electrodes on the substrate, such as an organic EL display device, can be used.
  • Other display devices can be used.
  • the liquid crystal display device-integrated touch panel of the present embodiment has a thickness of the sealing material 13 provided in the touch panel portion 10 rather than the liquid crystal display device-integrated touch panel of the first embodiment. Is getting thicker. That is, as shown in FIG. 6, a hollow region 20 is provided between the conductive film 11 and the protective film 12.
  • the cavity region 20 serves as a cushion, and it is possible to prevent stress from being directly applied to the conductive film 11 when inputting coordinates.
  • the stability of the capacitance 18 can be obtained further than in the first embodiment.
  • a fluid material such as a liquid material (not shown) for adjusting the refractive index in the hollow region 20, which has a refractive index with respect to glass (that is, the upper substrate) smaller than that of air.
  • a fluid material such as a liquid material (not shown) for adjusting the refractive index in the hollow region 20 which has a refractive index with respect to glass (that is, the upper substrate) smaller than that of air.
  • the liquid crystal display device-integrated touch panel of the present invention has a display device including a pair of substrates that face each other and each have a first electrode on the opposing surface, and the second electrode.
  • a capacitance type touch panel that detects the position of contact with the outside using the capacitance formed between the second electrode and the pressed object by the pressing of an external force;
  • the second electrode is provided in contact with one of the pair of substrates.
  • the liquid crystal display device-integrated touch panel of the present invention is provided in contact with the substrate, the first electrode provided on one surface of the substrate, and the other surface of the substrate. And a second electrode for detecting a position contacted from the outside using an electrostatic capacitance formed between the pressed object and the pressed object.
  • the present invention can be used for a display equipped with a capacitive touch panel.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Position Input By Displaying (AREA)

Abstract

Une section de panneau à cristaux liquides (1) comprenant une paire d'un substrat inférieur (2) et d'un substrat supérieur (3) plans mutuellement opposés et ayant une électrode inférieure (4) et une électrode supérieure (5), respectivement, sur les surfaces opposées, intègre une partie d'écran tactile capacitif (10) ayant un film conducteur (11) et détectant une position touchée depuis l'extérieur en utilisant une capacitance formée entre le film conducteur (11) et une matière enfoncée par une dépression externe, ce qui permet d'obtenir un écran tactile intégrant un affichage, le film conducteur (11) étant prévu en contact avec le substrat supérieur (3) de la paire constituée par le substrat inférieur (2) et le substrat supérieur (3) plans. Par conséquent, l'invention propose un écran tactile capacitif intégrant un affichage ayant une précision améliorée pour détecter une position de coordonnées.
PCT/JP2007/061994 2006-10-25 2007-06-14 Ecran tactile intégrant un affichage WO2008050507A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2006290455 2006-10-25
JP2006-290455 2006-10-25

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WO2008050507A1 true WO2008050507A1 (fr) 2008-05-02

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Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010032515A1 (fr) * 2008-09-18 2010-03-25 シャープ株式会社 Panneau tactile, appareil d'affichage et dispositif électronique
US8643624B2 (en) 2009-03-18 2014-02-04 Synaptics Incorporated Capacitive sensing using a segmented common voltage electrode of a display
US8970547B2 (en) 2012-02-01 2015-03-03 Synaptics Incorporated Noise-adapting touch sensing window
US9007336B2 (en) 2011-09-07 2015-04-14 Synaptics Incorporated Capacitive sensing during non-display update times
US9298309B2 (en) 2014-04-29 2016-03-29 Synaptics Incorporated Source driver touch transmitter in parallel with display drive
US9418626B2 (en) 2010-02-26 2016-08-16 Synaptics Incorporated Sensing during non-display update times
US9442615B2 (en) 2013-10-02 2016-09-13 Synaptics Incorporated Frequency shifting for simultaneous active matrix display update and in-cell capacitive touch
US9582099B2 (en) 2014-03-31 2017-02-28 Synaptics Incorporated Serrated input sensing intervals
US9898121B2 (en) 2010-04-30 2018-02-20 Synaptics Incorporated Integrated capacitive sensing and displaying
US10037112B2 (en) 2015-09-30 2018-07-31 Synaptics Incorporated Sensing an active device'S transmission using timing interleaved with display updates
US10073550B2 (en) 2012-09-20 2018-09-11 Synaptics Incorporated Concurrent input sensing and display updating
US10073568B2 (en) 2012-08-15 2018-09-11 Synaptics Incorporated System and method for interference avoidance for a display device comprising an integrated sensing device
US10275070B2 (en) 2015-01-05 2019-04-30 Synaptics Incorporated Time sharing of display and sensing data
US10394391B2 (en) 2015-01-05 2019-08-27 Synaptics Incorporated System and method for reducing display artifacts
US10592022B2 (en) 2015-12-29 2020-03-17 Synaptics Incorporated Display device with an integrated sensing device having multiple gate driver circuits

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003196023A (ja) * 2001-12-27 2003-07-11 Sony Corp 表示装置

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003196023A (ja) * 2001-12-27 2003-07-11 Sony Corp 表示装置

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102132237A (zh) * 2008-09-18 2011-07-20 夏普株式会社 触摸面板、显示装置和电子设备
WO2010032515A1 (fr) * 2008-09-18 2010-03-25 シャープ株式会社 Panneau tactile, appareil d'affichage et dispositif électronique
US8643624B2 (en) 2009-03-18 2014-02-04 Synaptics Incorporated Capacitive sensing using a segmented common voltage electrode of a display
US9418626B2 (en) 2010-02-26 2016-08-16 Synaptics Incorporated Sensing during non-display update times
US9922622B2 (en) 2010-02-26 2018-03-20 Synaptics Incorporated Shifting carrier frequency to avoid interference
US9805692B2 (en) 2010-02-26 2017-10-31 Synaptics Incorporated Varying demodulation to avoid interference
US9786254B2 (en) 2010-02-26 2017-10-10 Synaptics Incorporated Sensing during non-display update time to avoid interference
US9898121B2 (en) 2010-04-30 2018-02-20 Synaptics Incorporated Integrated capacitive sensing and displaying
US9946423B2 (en) 2011-09-07 2018-04-17 Synaptics Incorporated Capacitive sensing during non-display update times
US9041685B2 (en) 2011-09-07 2015-05-26 Synaptics Incorpoated Distributed blanking for touch optimization
US9330632B2 (en) 2011-09-07 2016-05-03 Synaptics Incorporated Capacitive sensing during non-display update times
US9576557B2 (en) 2011-09-07 2017-02-21 Synaptics Incorporated Distributed blanking for touch optimization
US9576558B2 (en) 2011-09-07 2017-02-21 Synaptics Incorporated Capacitive sensing during non-display update times
US9324301B2 (en) 2011-09-07 2016-04-26 Synaptics Incorporated Capacitive sensing during non-display update times
US9007336B2 (en) 2011-09-07 2015-04-14 Synaptics Incorporated Capacitive sensing during non-display update times
US8970547B2 (en) 2012-02-01 2015-03-03 Synaptics Incorporated Noise-adapting touch sensing window
US10073568B2 (en) 2012-08-15 2018-09-11 Synaptics Incorporated System and method for interference avoidance for a display device comprising an integrated sensing device
US10209845B2 (en) 2012-08-15 2019-02-19 Synaptics Incorporated System and method for interference avoidance for a display device comprising an integrated sensing device
US10073550B2 (en) 2012-09-20 2018-09-11 Synaptics Incorporated Concurrent input sensing and display updating
US9442615B2 (en) 2013-10-02 2016-09-13 Synaptics Incorporated Frequency shifting for simultaneous active matrix display update and in-cell capacitive touch
US9582099B2 (en) 2014-03-31 2017-02-28 Synaptics Incorporated Serrated input sensing intervals
US9298309B2 (en) 2014-04-29 2016-03-29 Synaptics Incorporated Source driver touch transmitter in parallel with display drive
US10275070B2 (en) 2015-01-05 2019-04-30 Synaptics Incorporated Time sharing of display and sensing data
US10394391B2 (en) 2015-01-05 2019-08-27 Synaptics Incorporated System and method for reducing display artifacts
US10037112B2 (en) 2015-09-30 2018-07-31 Synaptics Incorporated Sensing an active device'S transmission using timing interleaved with display updates
US10592022B2 (en) 2015-12-29 2020-03-17 Synaptics Incorporated Display device with an integrated sensing device having multiple gate driver circuits

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