Touch sensor panel and touch input device

#The present application is a U.S. national stage application under 35 U.S.C. § 371 of PCT Application No. PCT/KR2020/000784, filed Jan. 16, 2020, which claims priority to Korean Patent Application No. 10-2019-0006389, filed Jan. 17, 2019. The disclosures of the aforementioned priority applications are incorporated herein by reference in their entireties.

#The present invention relates to a touch sensor panel and a touch input device, and more particularly, to a touch sensor panel and a touch input device, which prevent a negative final capacitance change amount from occurring by preventing a pair of a predetermined first electrode and a predetermine second electrode extracted to determine mutual capacitance in a touch window area from being present in other window areas other than the touch window area.

#Various kinds of input devices are being used to operate a computing system. For example, input devices such as a button, a key, a joystick and a touch screen are used. Since the touch screen is easy and simple to operate, the touch screen is increasingly being used to operate the computing system.

#FIG. 1A is a configuration diagram of a touch sensor panel, and FIGS. 1B to 1D are diagrams illustrating an arrangement form of touch sensors implemented on different layers or touch sensors implemented on the same layer.

#FIGS. 2A and 2B are diagrams referred to for describing a final capacitance change amount of ‘−’ which occurs on a touch sensor panel in which a driving electrode and a receiving electrode are arranged on the same layer.

#FIG. 3 is diagram referenced for describing an arrangement form of electrodes in a touch sensor panel according to a first embodiment of the present invention.

#The following detailed description of the present invention will be made with reference to the accompanying drawings which illustrate a specified embodiment in which the present invention may be implemented as an example. The embodiment will be described in detail enough so that those skilled in the art are able to embody the present invention. It should be understood that various embodiments of the present invention are different from each other and need not be mutually exclusive. For example, specific shapes, structures, and characteristics described herein may be implemented in other embodiments without departing from the spirit and scope of the present invention in relation to one embodiment. In addition, it is to be understood that the location or arrangement of individual components within each disclosed embodiment may be changed without departing from the spirit and scope of the present invention. Accordingly, the detailed description to be described below is not intended to be taken in a limiting sense, and the scope of the present invention, if properly described, is limited only by the appended claims, along with all scopes equivalent to those claimed by the claims. Similar reference numerals in the drawings designate the same or similar functions in many aspects.

#Hereinafter, a touch input device 1000 according to an embodiment of the present invention will be described with reference to the accompanying drawings. Hereinafter, a capacitive touch sensor panel 1 is exemplified below, but the present invention may be applied even to the touch sensor panel 1 capable of detecting a touch position in any method in the same/similar manner.

#FIG. 1A is a schematic diagram of a capacitive touch sensor 10 included in a touch sensor panel 1 of a general touch input device 1000 and a configuration for operation thereof. Referring to FIG. 1A, the touch sensor 10 may include a plurality of driving electrodes TX1 to TXn and a plurality of receiving electrodes RX1 to RXm, and may include a driving unit 12 which applies a driving signal to the plurality of driving electrodes TX1 to TXn for the purpose of the operation of the touch sensor 10, and a sensing unit 11 which detects a touch and/or a touch position by receiving a sensing signal including information on a capacitance change amount changing according to the touch on a touch surface from the plurality of receiving electrodes RX1 to RXm.