KR-102963757-B1 - ELECTRONIC DEVICE

KR102963757B1KR 102963757 B1KR102963757 B1KR 102963757B1KR-102963757-B1

Abstract

An electronic device according to one embodiment of the present invention includes a display panel and an input sensor disposed on the display panel and operating in a first mode for detecting a first input by a user's touch or in a second mode for detecting a second input by an input device, wherein the input sensor includes a first detection unit for detecting the first input and the second input, and a second detection unit for recognizing the input device.

Inventors

방경남
김덕중
김은영
한혜윤

Assignees

삼성디스플레이 주식회사

Dates

Publication Date: 20260513
Application Date: 20201005

Claims (20)

Display panel; and It includes an input sensor positioned on the above-mentioned display panel and operating in a first mode that detects a first input by a user's touch or a second mode that detects a second input by an input device, The above input sensor is, It includes a first detection unit that detects the first input and the second input, and a second detection unit that recognizes the input device. The first sensing unit comprises a plurality of first sensing electrodes arranged in a first direction and each extending in a second direction intersecting the first direction, and The second sensing unit comprises a plurality of third sensing electrodes respectively disposed between two adjacent first sensing electrodes among the plurality of first sensing electrodes and between two adjacent second sensing electrodes among the plurality of second sensing electrodes, and a plurality of auxiliary electrodes overlapping the third sensing electrodes. An electronic device characterized in that the input sensor applies a signal having a phase opposite to the phase of the signal applied to the third sensing electrodes to the plurality of auxiliary electrodes.
In claim 1, the input sensor is an electronic device that operates in the second mode when the input device is recognized by the second detection unit.
An electronic device according to claim 1, wherein the first sensing member further comprises a plurality of second sensing electrodes arranged in the second direction and each extending in the first direction.
An electronic device according to paragraph 3, wherein the second sensing unit further comprises a plurality of bridge electrodes connecting the plurality of third sensing electrodes to each other.
In paragraph 4, the input sensor is defined with an active area where the first and second sensing units are disposed and a peripheral area adjacent to the active area where wiring is disposed. The above active region is an electronic device comprising a first region in which the first sensing electrodes and the second sensing electrodes are disposed and a second region adjacent to the first region in which dummy electrodes are disposed.
In paragraph 5, the third sensing electrodes are an electronic device disposed in an area of the second region where the dummy electrodes are not disposed.
An electronic device according to claim 1, wherein the input sensor comprises an input driving circuit that applies a first signal to the first sensing part for detecting the first input and the second input, and applies a second signal to the second sensing part for recognizing the input device.
An electronic device according to claim 7, wherein the input sensor transmits the second signal to the input device as an up-link signal.
An electronic device according to claim 7, wherein the first signal includes a down-link signal received from the input device to detect the second input.
An electronic device according to claim 4, wherein the first sensing electrode, the second sensing electrode, and the third sensing electrode are disposed on the same layer, and the bridge electrodes are disposed on a different layer from the first to third sensing electrodes.
In paragraph 4, the plurality of auxiliary electrodes are an electronic device disposed on the same layer as the bridge electrodes.
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An electronic device according to claim 11, wherein the plurality of auxiliary electrodes overlap not only the third sensing electrodes but also at least one of the first sensing electrodes or the second sensing electrodes.
In paragraph 4, the input sensor is an electronic device further comprising a first wiring connected to the first sensing electrode, a second wiring connected to the second sensing electrode, and a third wiring connected to the third sensing electrode.
In claim 11, the electronic device further comprising a plurality of auxiliary wires connecting the auxiliary electrodes and the input driving circuit, wherein the input sensor is an input sensor.
Display panel; and An input sensor is positioned above the above-mentioned display panel, wherein a detection area and a dummy area adjacent to the detection area are defined, and the sensor includes a first detection unit positioned in the detection area and a second detection unit positioned in the dummy area. The first sensing unit includes a first sensing electrode and a second sensing electrode to which a first signal is applied for detecting input by an input device or a user's touch, and The second sensing unit comprises a third sensing electrode to which a second signal for recognizing an adjacent input device is applied, and a plurality of auxiliary electrodes superimposed on the third sensing electrodes. The first sensing electrode and the second sensing electrode intersect each other in a plane, and the third sensing electrode is positioned adjacent to the first sensing electrode and the second sensing electrode. An electronic device characterized in that the input sensor applies a signal having a phase opposite to the phase of the signal applied to the third sensing electrodes to the plurality of auxiliary electrodes.
In paragraph 16, the input sensor operates in a first mode that detects a first input by the user's touch or in a second mode that detects a second input by the input device, and The above second mode is an electronic device that is activated when the input device is recognized by the second signal of the third sensing electrode.
In paragraph 16, the first sensing electrode is provided in a plurality and each extends in a first direction, and the second sensing electrode is provided in a plurality and each extends in a second direction, An electronic device in which the third sensing electrode is provided in a plurality of such electrodes, each of which is positioned between two adjacent first sensing electrodes among the plurality of first sensing electrodes and between two adjacent second sensing electrodes among the plurality of second sensing electrodes.
An electronic device according to claim 16, wherein the second sensing part further comprises a bridge electrode disposed on a different layer from the third sensing electrode.
In claim 19, the plurality of auxiliary electrodes are an electronic device disposed on the same layer as the bridge electrodes.

Description

Electronic Device The present invention relates to an electronic device, and more specifically, to an electronic device with improved detection reliability. An electronic device can detect external input applied from outside the electronic device. The external input may be user input. User input may include various forms of external input, such as parts of the user's body, light, heat, a pen, or pressure. The electronic device may recognize the coordinates of the pen using an electromagnetic resonance (EMR) method or using an active electrostatic (AES) method. FIG. 1 is a perspective view of an electronic device according to one embodiment of the present invention. FIG. 2 is a schematic diagram showing an electronic device and an input device according to one embodiment of the present invention. FIG. 3 is a cross-sectional view of an electronic device according to one embodiment of the present invention. FIGS. 4a and FIGS. 4b are plan views of an electronic device according to one embodiment of the present invention. FIG. 5a is an enlarged view of the YY' region of FIG. 4b according to one embodiment of the present invention. FIG. 5b is a cross-sectional view showing the cross-sectional plane of AA' in FIG. 5a. FIG. 6a is a plan view of an electronic device according to one embodiment of the present invention. FIG. 6b is a cross-sectional view showing the cross-sectional plane of BB' in FIG. 6a. FIG. 7 is a cross-sectional view of an electronic device according to one embodiment of the present invention. FIG. 8 is a cross-sectional view of an electronic device according to one embodiment of the present invention. FIGS. 9 and FIGS. 10 are plan views of an electronic device according to an embodiment of the present invention. In this specification, where a component (or region, layer, part, etc.) is described as being “on,” “connected,” or “joined” another component, it means that it may be directly placed/connected/joined on the other component, or that a third component may be placed between them. Identical reference numerals denote identical components. Additionally, in the drawings, the thicknesses, proportions, and dimensions of components are exaggerated for the effective illustration of the technical content. “And/or” includes all one or more combinations that the associated components may define. Terms such as "first," "second," etc., may be used to describe various components, but said components should not be limited by said terms. These terms are used solely for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be named the second component, and similarly, the second component may be named the first component. A singular expression includes a plural expression unless the context clearly indicates otherwise. Additionally, terms such as “below,” “lower,” “above,” and “upper” are used to describe the relationships between the components depicted in the drawings. These terms are relative concepts and are described based on the directions indicated in the drawings. Terms such as "include" or "have" are intended to indicate the existence of the features, numbers, steps, actions, components, parts, or combinations thereof described in the specification, and should be understood as not precluding the existence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof. Unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as generally understood by those skilled in the art to which the present invention pertains. Additionally, terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant technology, and are explicitly defined herein unless interpreted in an ideal or overly formal sense. Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view of an electronic device according to one embodiment of the present invention. Referring to FIG. 1, the electronic device (1000) may be a device that is activated by an electrical signal. For example, the electronic device (1000) may be a mobile phone, a tablet, a car navigation system, a game console, or a wearable device, but is not limited thereto. FIG. 1 illustrates the electronic device (1000) as a mobile phone as an example. The electronic device (1000) can display an image through an active area (1000A). The active area (1000A) may include a surface defined by a first direction (DR1) and a second direction (DR2). The thickness direction of the electronic device (1000) may be parallel to a third direction (DR3) that intersects the first direction (DR1) and the second direction (DR2). Accordingly, the front (or top) and back (or bottom) surfaces of the components constituting the elect