EP-4738077-A1 - ELECTRONIC DEVICE AND SCANNING METHOD FOR TOUCH SENSING OF DISPLAY IN ELECTRONIC DEVICE

EP4738077A1EP 4738077 A1EP4738077 A1EP 4738077A1EP-4738077-A1

Abstract

An electronic device according to an embodiment includes: a display including a touch sensor circuit and a pen input circuit; a memory; and a processor, wherein the memory may store instructions that are configured to cause, when executed, the processor to: identify a first palm position on the display through the touch sensor circuit, and identify a hover-in state by a pen device through the pen input circuit; identify a first position of the pen device, first tilt information of the pen device, and a first screen state of the display on the basis of the identification of the first palm position and the hover-in state; identify a first scan area in which a scan is to be performed by the touch sensor circuit and a first scan exclusion area in which a scan is not to be performed by the touch sensor circuit, on the basis of the first palm position, the first position of the pen device, the first tilt information, and the first screen state; and control the touch sensor circuit to perform a first partial scan such that a scan is performed on the first scan area but is not performed on the first scan exclusion area. Other embodiments may be included.

Inventors

KIM, Taegun

Assignees

Samsung Electronics Co., Ltd.

Dates

Publication Date: 20260506
Application Date: 20240612

Claims (15)

An electronic device (101, 201) comprising: a display including a touch sensor circuit (310) and a pen input circuit (320); memory (130, 230) storing instructions; and a processor (120, 220), wherein the instructions, when executed by the processor, cause the electronic device to: identify a first palm position on the display through the touch sensor circuit and identify a hover-in state by a pen device through the pen input circuit, identify a first position of the pen device, first tilt information of the pen device, and a first screen state of the display based on the identifying of the first palm position and the hover-in state, identify a first scan area to be scanned by the touch sensor circuit and a first scan exclusion area not to be scanned by the touch sensor circuit based on the first palm position, the first position of the pen device, the first tilt information, and the first screen state, and control the touch sensor circuit to perform a first partial scan to scan the first scan area and not to scan the first scan exclusion area.
The electronic device of claim 1, wherein the instructions, when executed by the processor, cause the electronic device to: control the touch sensor circuit to perform a full scan based on identifying a hover-out state of the pen device.
The electronic device of claim 1 or 2, wherein the instructions, when executed by the processor, cause the electronic device to: based on identifying movement of the pen device from the first position to a second position, identify a second palm position, the second position of the pen device, second tilt information of the pen device, and a second screen state of the display; identify a second scan area to be scanned by the touch sensor circuit and a second scan exclusion area not to be scanned by the touch sensor circuit based on the second palm position, the second position of the pen device, the second tilt information, and the second screen state, and control the touch sensor circuit to perform a second partial scan to scan the second scan area and not to scan the second scan exclusion area.
The electronic device of any one of claims 1 to 3, wherein the first scan exclusion area and the second scan exclusion area are different areas.
The electronic device of any one of claims 1 to 4, wherein the first display screen state is a vertical state or a horizontal state.
The electronic device of any one of claims 1 to 5, wherein the instructions, when executed by the processor, cause the electronic device to: identify a left direction or a right direction of the first position of the pen device with respect to an x-axis of the display when the first display screen state is the vertical state, and identify the left direction or the right direction of the first position of the pen device with respect to the y-axis of the display when the first display screen state is the horizontal state.
The electronic device of any one of claims 1 to 6 wherein the tilt information includes an angle between a reference axis of the pen device and a vertical axis of the display.
The electronic device of any one of claims 1 to 8, wherein the instructions, when executed by the processor, cause the electronic device to: identify the first scan exclusion area based on the left direction of the first position of the pen device when the angle is within a first specified angle range, and identify the first scan exclusion area based on the right direction of the first position of the pen device when the angle is within a second specified angle range.
The electronic device of any one of claims 1 to 8, wherein the memory configured to store indicators indicating each of a plurality of areas within touch sensing area by the touch sensor circuit.
The electronic device of any one of claims 1 to 9, wherein the instructions, when executed by the processor, cause the electronic device to: transmit a first indicator corresponding to the first scan exclusion area among the area indicators to the touch sensor circuit.
A scanning method for touch sensing of a display in an electronic device (101 or 201), the method comprising: identifying a first palm position on the display through a touch sensor circuit and identifying a hover-in state by a pen device through a pen input circuit; based on identifying the first palm position and the hover-in state, identifying a first position of the pen device, first tilt information of the pen device, and a first screen state of the display; based on the first palm position, the first position of the pen device, the first tilt information, and the first screen state, identifying a first scan area and a first scan exclusion area from a scan area to be scanned by the touch sensor circuit; and performing, through the touch sensor circuit, a first partial scan in which the first scan area is scanned and the first scan exclusion area is not scanned..
The method of claim 11, comprising, based on identifying a hover-out state of the pen device, performing a full scan of the scan area by the touch sensor circuit.
The method of claim 11 or 12, comprising: based on identifying movement of the pen device from the first position to the second position on the display, identifying a second hand position, a second position of the pen device, second tilt information of the pen device, and a second screen state of the display,; based on the second palm position, the second position of the pen device, the second tilt information, and the second screen state, identifying a second scan area and a second scan exclusion area from a scan area to be scanned by the touch sensor circuit; and performing, through the touch sensor circuit, a second partial scan in which the second scan area is scanned and the second scan exclusion area is not scanned.
The method of one of claims 11 to 13, wherein the first scan exclusion area and the second scan exclusion area are different areas, and wherein the method comprises identifying whether the display screen state is a landscape state or a portrait state.
A non-transitory storage medium storing instructions that are configured to, when executed by an electronic device, cause the electronic device to perform at least one operation, wherein the at least one operation comprises: identifying a first palm position on a display through a touch sensor circuit and identifying a hover-in state by a pen device through a pen input circuit; based on identifying the first palm position and the hover-in state, identifying a first position of the pen device, first tilt information of the pen device, and a first screen state of the display; based on the first palm position, the first position of the pen device, the first tilt information, and the first screen state, identifying a first scan area and a first scan exclusion area within a scan area to be scanned by the touch sensor circuit; and performing, through the touch sensor circuit, a first partial scan in which the first scan area is scanned and the first scan exclusion area is not scanned..

Description

[Technical Field] Various embodiments of the disclosure relate to scanning for touch sensing of a display in an electronic device. [Background Art] Recently, input devices such as touch input devices (e.g., touchscreens) or pen input devices (e.g., digitizers) have been widely incorporated and used for user interfaces in electronic devices. A touchscreen may provide touch input signals through touch sensing, and touch sensing methods include, for example, resistive, capacitive, infrared, ultrasonic, and/or camera-based methods. The capacitive method can be widely applied to portable electronic devices such as smartphones and tablet PCs. A digitizer may provide pen input signals via an electronic pen or a stylus pen. Pen recognition methods include pressure-sensitive, capacitive, passive, active, and electromagnetic resonance (EMR) or inductive methods. [Detailed Description of the Invention] [Technical Problem] In an electronic device, a touch input operation and a pen input operation may be performed independently. The electronic device may scan the entire area of a touchscreen for touch sensing, and when a touch (e.g., a touch by a palm) is detected as a result of the scanning, the electronic device may perform a pen input recognition operation by a pen input device. In an electronic device, when touch input operations by touch sensing and pen input operations by pen recognition are performed simultaneously, some touch inputs may be unnecessary inputs incidentally detected for pen input. For example, when a palm is placed on a touchscreen of an electronic device while writing or drawing with a pen, the electronic device may perform a scan of the entire area of the touchscreen, even though scanning of some areas of the touchscreen not associated with the pen input is unnecessary, thereby resulting in unnecessary power consumption. An embodiment may provide an electronic device and a scanning method for touch sensing of a display in an electronic device, wherein when writing or drawing is performed with a pen while the palm is placed on the electronic device, the electronic device can identify a scan area and a scan exclusion area within the entire touchscreen area, and perform a partial scan in which scanning is performed only on the scan area, rather than a full scan, thereby reducing power consumption. [Technical Solution] An electronic device according to an embodiment may include a display including a touch sensor circuit and a pen input circuit, memory configured to store instructions, and a processor. According to an embodiment, the instructions may, when executed by the processor, cause the electronic device to identify a first palm position on the display through the touch sensor circuit and identify a hover-in state by a pen device through the pen input circuit. According to an embodiment, the instructions may, when executed by the processor, cause the electronic device to identify a first position of the pen device, first tilt information of the pen device, and a first screen state of the display, based on the identification of the first palm position and the hover-in state. According to an embodiment, the instructions may, when executed by the processor, cause the electronic device to identify a first scan area to be scanned by the touch sensor circuit and a first scan exclusion area not to be scanned by the touch sensor circuit, based on the first palm position, the first position of the pen device, the first tilt information, and the first screen state. According to an embodiment, the instructions may, when executed by the processor, cause the electronic device to control the touch sensor circuit to perform a first partial scan in which the first scan area is scanned and the first scan exclusion area is not scanned. According to an embodiment, a scanning method for touch sensing of a display in an electronic device may include identifying a first palm position on the display through a touch sensor circuit and identifying a hover-in state by a pen device through a pen input circuit. According to an embodiment, the method may include identifying a first position of the pen device, first tilt information of the pen device, and a first screen state of the display, based on the identification of the first palm position and the hover-in state. According to an embodiment, the method may include identifying a first scan area and a first scan exclusion area within a scan area to be scanned by the touch sensor circuit, based on the first palm position, the first position of the pen device, the first tilt information, and the first screen state. According to an embodiment, the method may include performing, through the touch sensor circuit, a first partial scan in which the first scan area is scanned and the first scan exclusion area is not scanned.. According to an embodiment, a non-transitory storage medium may store instructions that are configured to, when executed by an electronic device, cause the