65results about How to "Increase mutual capacitance" patented technology

The invention provides an embedded touch-screen LCD device and a control method. The embedded touch-screen LCD device comprises an upper baseplate, a common electrode layer arranged on the upper baseplate, a lower baseplate, a pixel electrode layer on the lower baseplate, and liquid crystal layers between the common electrode layer and the pixel electrode layer, wherein the common electrode layercomprises a drive electrode and an induction electrode arranged opposite to the drive electrode; the pixel electrode layer comprises pixel electrodes and a touch-control electrode arranged between the pixel electrodes; and the touch-control electrode has mutually directly-facing part with both the drive electrode and the induction electrode. The embedded touch-screen LCD device has strong touch-control signal when being about to be touched and controlled, so that the signal-to-noise ratio is improved, and the performance of the touch screen is improved.

The invention discloses a capacitance type embedded touch screen and a display device. A public electrode layer connected in a manner of a whole surface in a TFT (Thin Film Transistor) array substrate is divided to form mutually insulated and crossly arranged touch driving electrodes and public electrodes; a touch sensing electrode is arranged on a colorful film substrate; and time-sharing driving is performed on the touch driving electrodes to realize a touch function and a display function. As the projection of the touch sensing electrode on the TFT array substrate is located in an area where the public electrodes are of the touch screen provided by the embodiment of the invention, and the public electrodes and the touch driving electrodes are located at the same layer but insulated mutually, an enfilade area generated between the touch sensing electrode and the touch driving electrodes is avoided, a mutual capacitance formed by the enfilade area is reduced, a proportion of a mutual capacitance variation quantity caused by touch of a finger is added, and touch accuracy is improved. In addition, as the time-sharing driving touch and display functions are adopted, mutual interference is also reduced, and picture quality is increased.

A display device includes a plurality of first electrodes arranged on a substrate in parallel in a first direction; a plurality of second electrodes arranged in parallel in the first direction and a second direction crossing the first direction without contacting with the plurality of first electrodes; a plurality of first connecting wires, each first connecting wire being connected with at least one of the plurality of the first electrodes; and a plurality of second connecting wires, each second connecting wire connecting the second electrodes to each other in the second direction, wherein a touch driving voltage is supplied to the plurality of first connecting wires and a common voltage is supplied to the plurality of second connecting wires so that mutual capacitance is generated between the a plurality of first electrodes and the plurality of second electrodes.

The invention discloses a capacitance type touch module, a capacitance type in cell touch panel and a display device, and adopts the scheme that a whole surface-connected public electrode layer in an array substrate is divided to form touch inducting electrodes and touch driving electrodes which are insulated with one another, and the touch inducting electrodes and touch driving electrodes are driven in a time-shared manner, so that a touch function and a display function are achieved; each of touch inducting electrodes comprises a plurality of touch inducting subelectrodes, each of touch driving electrodes comprises a plurality of touch driving subelectrodes, and the opposite side edges of the adjacent touch inducting subelectrode and the touch driving subelectrode are fold lines, so that the opposite area between the adjacent touch driving electrode and the touch inducting subelectrode is increased, the mutual capacitance between the touch driving electrodes and the touch inducting subelectrodes in a unit area is increased, and further the sensitivity of the touch panel during touch is improved.

The present disclosure relates to a fingerprint sensor integrated type touch screen panel having at least one fingerprint / touch area and a plurality of touch areas. The touch screen panel includes a fingerprint / touch driving electrode group including a plurality of fingerprint / touch driving electrodes; a fingerprint / touch sensing electrode group including a plurality of fingerprint / touch sensing electrodes; a touch driving electrode group including a plurality of touch driving electrodes; a touch sensing electrode group including a plurality of touch sensing electrodes; and a touch IC configured to supply touch driving signals to the touch driving electrode group and the fingerprint / touch driving electrode group and obtain touch sensing data by sensing the touch sensing electrode group and some of the fingerprint / touch sensing electrodes in a touch sensing mode, and supply fingerprint driving signals to the fingerprint / touch driving electrodes and obtain fingerprint sensing data by sensing the fingerprint / touch sensing electrodes in a fingerprint sensing mode.

A touch-sensing electrode structure includes multiple first electrodes and multiple second electrodes. Each of the first electrodes includes at least a first major part and a second major part, the first major part and the second major part cross over each other to form at least one interconnect section, the interconnect section includes a first connecting line extending in a first direction and a second connecting line extending in a second direction different to the first direction. Each of the second electrodes includes a plurality of electrode sections and third connecting lines, each of the third connecting lines is connected between two adjacent electrode sections, the third connecting lines extend in a third direction different to the first direction and the second direction, and at least one of the third connecting lines overlaps the interconnect section.

Provided is a microstrip transmission line for reducing far-end crosstalk. In a conventional microstrip transmission line on a printed circuit board, a capacitive coupling between adjacent signal lines is smaller than an inductive coupling therebetween, so that far-end crosstalk occurs. According to the present invention, the capacitive coupling between the adjacent signal lines is increased to reduce the far-end crosstalk. A vertical-stub type microstrip transmission line is provided.

Provided are a touch display panel and a forming method thereof and a touch displayer and a forming method thereof. The touch display panel comprises an array substrate, a line layer located on the array substrate, an OLED layer located on the line layer, a touch layer located on the OLED layer and a package substrate opposite to the array substrate, wherein the OLED layer comprises a pixel definition region and multiple OLED units arranged in the pixel definition region, and the package substrate and the array substrate form a box-shaped structure for packaging the line layer, the OLED layer and the touch layer. A manufacture process of the touch display panel is simplified, the process time is shortened, and the cost is saved.

An In-Cell touch panel is disclosed. The panel includes a color filter substrate, a common electrode disposed on the color filter substrate, and an array substrate disposed opposite to the color filter substrate. The panel also includes an Integrated Circuit disposed on the array substrate, a plurality of data lines on the array substrate, and a plurality of gate lines on the array substrate. The gate lines are perpendicular to the data lines, the common electrode is divided into a plurality of common electrode lines, the common electrode lines are configured to function as drive electrodes or sense electrodes, the IC is configured to perform a timesharing function for providing display signals and touch drive signals. In addition, the IC is also configured to detect touch signals.

Provided is a guard trace pattern reducing far-end crosstalk and a printed circuit board having the guard trace pattern. The guard trace pattern includes a first guard trace pattern parallel with two signal lines and a plurality of second guard trace patterns perpendicular to the first guard trace pattern to increase mutual capacitance between the two signal lines and the guard trace pattern and increase mutual capacitance between the two signal lines. The printed circuit board includes the aforementioned guard trace pattern disposed between micro strip transmission lines. A characteristic impedance of the guard trace pattern is different from a characteristic impedance of the micro strip transmission lines, and resistances having the same value as a resistance component value of the characteristic impedance of the guard trace pattern are provided to both ends of the guard trace pattern.

The invention discloses a touch screen position detection method. The method comprises the following steps of: applying a plurality of first driving signals to a first detection end of a touch screen detection region, detecting signals at a second detection end of the touch screen detection region and acquiring a first coordinate value according to a detection result of the second detection end; applying a plurality of second driving signals to the second detection end, detecting the signals of the first detection end and determining a second coordinate value according to a detection result of the first detection end; and determining a touch position by using the first coordinate value and the second coordinate value. In the method, a driving end and an inducing end are used as the driving ends respectively, and a plurality of detection lines are simultaneously used for driving each time, so the identifiability of a detection signal is improved, the step effect is avoided and the detection time is saved on the premise of not affecting resolution.

The invention provides a touch electrode layer and a touch display device. The touch electrode layer is provided with a first electrode and a second electrode, the first electrode is provided with a first electrode trunk and a plurality of first electrode branches which are obliquely arranged along the first electrode trunk; the second electrode is provided with a second electrode trunk and a plurality of second electrode branches obliquely arranged along the second electrode trunk, the first electrode and the second electrode are both arranged to be of a symmetrical structure, and the inclination angles of the first electrode branches and the second electrode branches are the same. In the touch electrode unit, the first electrodes and the second electrodes are almost the same in shape andsize, and the first electrode branches and the second electrode branches which are arranged in a crossed mode are also almost the same in shape and size. The mutual capacitance value between the touch driving electrodes and the touch sensing electrodes can be effectively improved, meanwhile, a mutual capacitance electric field in the whole touch screen structure is distributed more evenly, and the resolution and accuracy of touch position detection can be better improved.

Provided is a guard trace pattern reducing far-end crosstalk and a printed circuit board having the guard trace pattern. The guard trace pattern includes a first guard trace pattern parallel with two signal lines and a plurality of second guard trace patterns perpendicular to the first guard trace pattern to increase mutual capacitance between the two signal lines and the guard trace pattern and increase mutual capacitance between the two signal lines. The printed circuit board includes the aforementioned guard trace pattern disposed between micro strip transmission lines. A characteristic impedance of the guard trace pattern is different from a characteristic impedance of the micro strip transmission lines, and resistances having the same value as a resistance component value of the characteristic impedance of the guard trace pattern are provided to both ends of the guard trace pattern.

The invention discloses a display base plate and a manufacturing method of the display base plate as well as a display device. The display base plate comprises a substrate base plate, a patterned black matrix and a touch electrode, wherein the patterned black matrix is arranged on the substrate base plate; in the region of the black matrix, the display base plate comprises a light filtering layer laminating layer located on the black matrix; the light filtering layer laminating layer comprises more than two colored light filtering layers which are stacked in sequence, and is provided with a plurality of openings; the touch electrode is arranged on the light filtering layer laminating layer and covers the surface provided with the plurality of openings. According to the display base plate disclosed by the invention, the light filtering layer laminating layer provided with the plurality of openings is arranged in the region of the black matrix of the display base plate, so that the surface area of the touch electrode, covered by the light filtering layer laminating layer, is enlarged, and more charges can be easily gathered, and furthermore, the touch sensitivity and the touch accuracy are improved.

Magnetic field distribution and mutual capacitance control for transmission lines are provided. A first circuit board is fabricated by attaching a reference plane layer to a dielectric material layer, and attaching a first trace to the second surface of the dielectric material. A surface profile of the reference plane layer is modified to decrease a resistance of a return current signal path through the reference plane layer, to reduce a magnetic field coupling between the first trace and a second trace. A second circuit board is fabricated by attaching a reference plane layer to a dielectric material layer, attaching a trace to the dielectric material, and forming a solder mask layer on the dielectric material layer over the trace. An effective dielectric constant of the solder mask layer is modified to reduce or increase a mutual capacitance between the first trace and a second trace on the dielectric material.

A display device includes a plurality of first electrodes arranged on a substrate in parallel in a first direction; a plurality of second electrodes arranged in parallel in the first direction and a second direction crossing the first direction without contacting with the plurality of first electrodes; a plurality of first connecting wires, each first connecting wire being connected with at least one of the plurality of the first electrodes; and a plurality of second connecting wires, each second connecting wire connecting the second electrodes to each other in the second direction, wherein a touch driving voltage is supplied to the plurality of first connecting wires and a common voltage is supplied to the plurality of second connecting wires so that mutual capacitance is generated between the a plurality of first electrodes and the plurality of second electrodes.

The invention provides a touch electrode structure and a touch display panel. The touch electrode structure comprises a substrate and a plurality of first touch electrodes, the first touch electrodesare arranged in parallel. The first touch electrode also comprise, each first touch electrode comprises a plurality of first main road electrodes which are connected end to end in the first directionand are continuously conducted and branch electrodes connected with the first main road electrodes, and each branch electrode comprises a first branch part connected with the corresponding first mainroad electrode and a second branch part connected with the corresponding first branch part in a crossed mode; . The structure also comprises the a plurality of second touch electrodes are which is arranged in parallel, surrounds the first touch electrodes, are is electrically insulated from the first touch electrodes, and comprises a plurality of second main road electrodes which are connected end to end along a second direction and are continuously conducted; a first hollowed-out part is arranged in at least one branch electrode, or / and a second hollowed-out part is arranged in at least onesecond touch electrode, and the second hollowed-out part is arranged outside the second main road electrode. The parasitic capacitance between the touch electrode and the cathode is reduced, the scanning frequency of the touch electrode is improved, and the high reporting rate of the touch screen is achieved.

An embodiment of the invention discloses a capacitive touch screen and an electronic device and is applied to the technical field of electronic equipment. Induction electrodes on a drive electrode layer and a receiving electrode layer of the capacitive touch screen are spaced, so that the distance between the receiving electrode layer and the drive electrode layer can be small as far as possible, particularly smaller than 45 micrometers, and the requirements of the touch screen for light weight and thickness are met. Specifically, the area of the induction electrodes on the drive electrode layer and the receiving electrode layer is decreased, the distance between the two electrode layers is decreased moderately to increase mutual capacitance, the mutual capacitance formed between the two electrode layers is finally formed in the measurement range of a detection unit, and the performance of the capacitive touch screen is guaranteed.

Magnetic field distribution and mutual capacitance control for transmission lines are provided. A first circuit board is fabricated by attaching a reference plane layer to a dielectric material layer, and attaching a first trace to the second surface of the dielectric material. A surface profile of the reference plane layer is modified to decrease a resistance of a return current signal path through the reference plane layer, to reduce a magnetic field coupling between the first trace and a second trace. A second circuit board is fabricated by attaching a reference plane layer to a dielectric material layer, attaching a trace to the dielectric material, and forming a solder mask layer on the dielectric material layer over the trace. An effective dielectric constant of the solder mask layer is modified to reduce or increase a mutual capacitance between the first trace and a second trace on the dielectric material.

The embodiment of the invention provides a touch substrate, a touch display panel and a touch display device. The touch substrate comprises a substrate body, a first electrode layer, a second electrode layer and an insulating layer, wherein the first electrode layer and the second electrode layer are located on one side of the substrate body, and the insulating layer is located between the two electrode layers. The first electrode layer comprises a plurality of first touch electrodes and a plurality of second touch electrodes insulated from the first touch electrodes, and each first touch electrode comprises a plurality of first touch sub-electrodes; the second electrode layer comprises a plurality of bridge electrodes and a plurality of auxiliary electrodes, the adjacent first touch sub-electrodes in the same first touch electrode are electrically connected through the bridge electrodes, and the auxiliary electrodes are electrically connected with the first touch electrodes and form first auxiliary capacitors with the second touch electrodes; and / or the auxiliary electrode is electrically connected with the second touch electrode and forms a second auxiliary capacitor with the first touch electrode. According to the embodiment, the total capacitance between the first touch electrodes and the second touch electrodes is increased, so that the influence of stray capacitance on the touch sensitivity is reduced, and the touch sensitivity is improved.

Provided is a microstrip transmission line for reducing far-end crosstalk. In a conventional microstrip transmission line on a printed circuit board, a capacitive coupling between adjacent signal lines is smaller than an inductive coupling therebetween, so that far-end crosstalk occurs. According to the present invention, the capacitive coupling between the adjacent signal lines is increased to reduce the far-end crosstalk. A vertical-stub type microstrip transmission line is provided.

A touch-sensing electrode structure includes multiple first electrodes and multiple second electrodes. Each of the first electrodes includes at least a first major part and a second major part, the first major part and the second major part cross over each other to form at least one interconnect section, the interconnect section includes a first connecting line extending in a first direction and a second connecting line extending in a second direction different to the first direction. Each of the second electrodes includes a plurality of electrode sections and third connecting lines, each of the third connecting lines is connected between two adjacent electrode sections, the third connecting lines extend in a third direction different to the first direction and the second direction, and at least one of the third connecting lines overlaps the interconnect section.

The invention discloses an embedded touch screen, a display device and a production method, and belongs to the technical field of the display. The embedded touch screen comprises touch electrodes and a columnar spacer which is formed at the side of an array substrate; the touch electrodes are laid on the top surface, a first side surface and a second side surface of the columnar spacer, and the first side surface is opposite to the second side surface. The touch electrodes are laid on the columnar spacer, so that the surface area of the touch electrodes can be increased, the mutual capacitance between a touch driving electrode and a touch induction electrode can be increased, the induction capacitance produced when the screen is touched by fingers also can be increased, the influence of a liquid crystal layer on the touch can be alleviated, the signal-to-noise ratio can be increased, and the sensitivity and accuracy for touch judgment can be improved.

A touch sensing device comprises touch electrodes having a first resolution for sensing touch in the active area. The touch sensing device also includes combination touch and fingerprint electrodes having a second resolution for sensing both touch and a fingerprint in the active area, the second higher than the first resolution. The touch sensing device also includes a touch and fingerprint controller that respectively applies a touch driving voltage for sensing touch to the plurality of touch electrodes and the plurality of combination touch and fingerprint electrodes during a touch driving mode of a touch period of the touch sensing device, and the touch and fingerprint controller applies a fingerprint driving voltage for sensing a fingerprint to the plurality of combination touch and fingerprint electrodes during a fingerprint mode of the touch period.

The invention provides a touch control assembly and a touch control display device. A second branch electrode surrounds a corresponding first branch electrode, and a third branch electrode adjacent tothe first branch electrode surrounds the part, located between the first branch electrode and the third branch electrode, of the second branch electrode; the ends, away from the ends connected with the first main electrodes, of the two adjacent third branch electrodes located in the two adjacent touch units in the first direction in a matched mode are connected with each other, so that the touchsensitivity of the touch assembly is improved.

The invention provides a touch control assembly and a touch control display device. The touch control assembly comprises a touch control layer; the touch control layer comprises a plurality of touch control units; each touch control unit comprises a first electrode arranged along a first direction, and a second electrode arranged in the second direction, wherein the first electrode is electricallyinsulated from the second electrode. At the position close to the intersection of the first electrode and the second electrode, the first electrode comprises at least one concave part, and the secondelectrode comprises at least one convex part matched with the concave part. The concave part is arranged on each first electrode, and the convex part is arranged on each second electrode; therefore,the impedance of the first electrode at the position close to the intersection of the first electrode and the second electrode is not increased, and the impedance of the second electrode at the position close to the intersection of the first electrode and the second electrode is reduced, so that the resistance-capacitance load of the second electrode is reduced, the scanning time of the touch display device is shortened, and the point reporting rate is increased.

The invention discloses a single-layer capacitive touch unit, including a sensing electrode, connected to a control unit through a sensing electrode lead; and a plurality of scan electrodes, disposed at two sides of the sensing electrode; the scan electrode being connected to the control unit through a scan electrode lead, and the scan electrodes and the sensing electrode being coplanar; wherein one end of scan electrode lead connected to a second end of scan electrode and extending to near a next scan electrode to form extending lead; and the other end of scan electrode lead connected to the control unit. The invention also provides a capacitive touch screen with the capacitive touch unit. The invention can reduce the effect of noise signal on the touch signal and increase SNR of the touch signal.