31results about How to "Reduce mutual capacitance" patented technology

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.

The invention discloses an embedded touch screen and a display device and aims at reducing mutual capacitance of a vertical overlapped surface of touch sensing electrodes and touch driving electrodes which are both arranged in the embedded touch screen and improving the touch control effect of the embedded touch screen. The embedded touch screen comprises a plurality of touch sensing electrodes arranged in a first direction and a plurality of touch driving electrodes arranged in a second direction perpendicular to the first direction. Each touch sensing electrode comprises a plurality of touch sensing sub electrodes which are electrically connected, and projections of the touch sensing sub electrodes in the vertical direction and projections of the touch driving electrodes in the vertical direction have no overlapped areas; and/or each touch driving electrode comprises a plurality of touch driving sub electrodes which are electrically connected, and projections of the touch driving sub electrodes in the vertical direction and projections of the touch sensing electrodes in the vertical direction have no overlapped areas.

A touch sensor integrated type display device includes gate lines and data lines; a plurality of pixel electrodes respectively formed in pixel areas defined by crossings of the gate and data lines; a first electrode formed between first pixel electrodes and in parallel with a first gate line of the gate lines, the first pixel electrodes being adjacent to each other with the first gate line interposed therebetween; second electrodes formed between second pixel electrodes and arranged in a line in parallel with a second gate line adjacent to the first gate line, the second pixel electrodes being adjacent to each other with the second gate line interposed therebetween; and third electrodes, each of which is formed in parallel with the data lines and contacts the second electrodes, at least a portion of each of the third electrodes overlapping the first and second pixel electrodes.

The invention discloses a touch sensor, an embedded touch LCD panel and an LCD. The touch sensor includes a plurality of drive electrodes and a plurality of induction electrodes crossed with the drive electrodes, wherein mutual capacitance is formed between the drive electrodes and the induction electrodes; in a matrix structure, a plurality of virtual electrodes are arranged at the residual zone except the drive electrodes and the induction electrodes; and the virtual electrodes, the drive electrodes and the induction electrodes are positioned on the same layer. The LCD panel provided with an embedded touch screen, provided by the technical scheme, has better transmission of light and higher screen luminance, guarantees enough mutual capacitance to enable touch induction signals to be easily detected while reducing stray capacitance among electrodes except the drive electrodes and the induction electrodes in the touch sensor and the LCD panel, and eliminates electrostatic influence of the LCD panel due to finger touch.

A touch sensor integrated type display device includes gate lines and data lines crossing over each other, pixel electrodes respectively formed in areas defined by crossing the gate lines and the data lines, first electrodes, each of which is formed between the pixel electrodes and in parallel with the gate line, the pixel electrodes being adjacent to each other with the gate line interposed therebetween, second electrodes formed in parallel with the data lines to overlap the pixel electrode, first routing wires connecting some of the first electrodes to form first electrode groups arranged in a first direction, second routing wires connecting another some of the first electrodes to form second electrode groups arranged in the first direction; and third routing wires connecting some of the second electrodes to form third electrode groups arranged in a second direction.

A touch sensor integrated type display device includes a plurality of gate lines and a plurality of data lines which are formed to cross over each other; a plurality of pixel electrodes respectively formed in areas defined by crossings of the plurality of gate lines and the plurality of data lines; a plurality of first electrodes, each of which is formed between the pixel electrodes and in parallel with the gate line, the pixel electrodes being adjacent to each other with the gate line interposed therebetween; a plurality of second electrodes formed in parallel with the data lines, at least a portion of each of the plurality of second electrodes overlapping the pixel electrode; and a shielding electrode formed between each first electrode and each second electrode.

The invention provides a single-layer mutual-capacitance touch panel which comprises a substrate, first-direction touch electrodes and second-direction touch electrodes. The first-direction touch electrodes and the second-direction touch electrodes intersect with one another and are arranged on the surface of the substrate, each first-direction touch electrode comprises a plurality of first-direction touch electrode units, each second-direction touch electrode comprises a plurality of second-direction touch electrode units, the first-direction touch electrode units and the second-direction touch electrode units are provided with hollow-out regions, input ends of at least two adjacent first-direction touch electrodes or input ends of at least two adjacent second-direction electrodes are connected with each other, output ends of at least two adjacent first-direction touch electrodes or output ends of at least two adjacent second-direction touch electrodes are connected with each other, and each of the input ends and the output ends is connected with a chip by an electrode connecting wire. The single-layer mutual-capacitance touch panel has the advantages that the problem of floating can be effectively solved by the aid of the single-layer mutual-capacitance touch panel, and the single-layer mutual-capacitance touch panel is simple in structure, is integrally lightened and thinned and has good touch hand feel.

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 embodiment of the invention provides a touch control structure, a preparation method thereof, a touch control device and a touch control display device, and relates to the technical field of touch. The problem that an existing touch structure is large in capacitance and resistance delay value can be solved; the touch control structure comprises a plurality of first touch control electrodes anda plurality of second touch control electrodes arranged on a substrate; the first touch electrodes and the second touch electrodes are composed of first conductive mesh structures and one or more polygonal patterns arranged in each first mesh; the centers of the first meshes coincide with the centers of the polygonal patterns; the polygonal patterns are made of conductive materials, wherein at the crossed positions of the first touch control electrodes and the second touch control electrodes, after the intersections of the first conductive mesh structures of the first touch control electrodescoincide with the centers of the polygonal patterns of the second touch control electrodes, the orthographic projections of the first conductive mesh structures and the polygonal patterns on the substrate form a second conductive mesh structure, and the shapes and the sizes of multiple second meshes in the second conductive mesh structure are identical.