KR20140114721A - Method for operating touchscreen and electronic device implementing the same - Google Patents

Abstract

Disclosed are a touch screen operating method and an electronic device performing the same. The method for operating the electronic device according to the disclosure may include recognizing an indirect touch based on information detected through a touch screen panel and setting the touch sensitivity of the touch screen panel to correspond to the indirect touch.

Description

TECHNICAL FIELD [0001] The present invention relates to a method of operating a touch screen,

This specification discloses a touch screen operating method and an electronic apparatus for implementing the same.

An electronic device having a capacitive touch screen panel may generate a touch event in response to a finger touch of the touch screen. In addition, such an electronic device can generate a touch event in response to a touch of a conductive material (e.g., a glove having a conductive material formed on a portion corresponding to a finger). However, in the case of such a glove touch, the amount of change of the capacitance may be smaller than that of the touch of the finger. Therefore, the electronic device can operate the touch sensitivity of the touch screen with high sensitivity. That is, the electronic device can generate a touch event even with a small change in capacitance. However, when the touch screen is operated with high sensitivity as described above, a ghost touch phenomenon (that is, a phenomenon that a touch event is generated without a substantial touch) frequently occurs, and thus the electronic device may malfunction.

It is an object of the present invention to provide a method and apparatus for recognizing a user's touch manner on a touch screen and setting an operation mode of the touch screen corresponding to the recognized touch method. Here, the touch method may include a direct touch method and an indirect touch method. The direct touch method can be a way that the finger touches the touch screen. The indirect touch method may be a method in which another object (e.g., glove) touches the touch screen. In addition, the indirect touch method may be a method in which a finger touches the touch screen while another object (e.g., a cover for protecting the touch screen) is stacked on the touch screen.

A method of operating an electronic device according to the present disclosure includes: recognizing an indirect touch based on sensed information detected through a touch screen panel; And setting the touch sensitivity of the touch screen panel to correspond to the indirect touch.

An electronic device according to the present disclosure includes a touch screen panel for generating sensing information in response to a touch to a touch screen; A processor; A touch screen controller for generating a touch event based on the sensing information and transmitting the touch event to the processor; And an operation of recognizing the indirect touch based on the sensed information detected through the touch screen panel and an operation of setting the touch sensitivity of the touch screen panel to correspond to the indirect touch, Modules.

The present disclosure recognizes the touch method and can set the operating mode of the touch screen to correspond to the recognized touch method.

1 is a block diagram of an electronic device according to an embodiment of the present disclosure;
Figs. 2A and 2B show an electronic device according to the present disclosure and its cover, Figs. 3A and 3B show a cover closed state and a cover open state in a state where a cover and an electronic device are combined, And FIG. 4B is a view for explaining an active area of the touch screen panel corresponding to the view area of the cover.
5 is a diagram showing an electronic device and a touch glove according to the present disclosure.
6 is a flow chart illustrating a method for setting a touch screen to an indirect touch mode in accordance with the present disclosure.
7 is a flowchart illustrating a method for setting a touch screen directly in a touch mode according to the present disclosure.
8 is a flowchart illustrating a method for changing an operation mode of the touch screen and the touch key from the direct touch mode to the indirect touch mode according to the present disclosure.
9 is a flowchart for explaining an example of a method for changing an operation mode of the touch key from the direct touch mode to the indirect touch mode according to the present disclosure.
10 is a flowchart for explaining another example of a method for changing the operating mode of the touch key from the direct touch mode to the indirect touch mode according to the present disclosure.
11 is a diagram for explaining a processing procedure for changing the operating mode of the touch screen and the touch key in the electronic device according to the present disclosure.

The electronic device according to the present disclosure is a device having a capacitive touch screen panel and can be used in various applications such as a smart phone, a tablet PC, a notebook PC, a digital camera, a smart TV, a PDA (Personal Digital Assistant) Such as a portable multimedia player (PMP), a media player (e.g., an MP3 player), a sound device, a smart wrist watch, a game terminal, a home appliance having a touch screen .

The electronic device according to the present disclosure recognizes the touch method and can set the touch sensitivity of the touch screen corresponding to the recognized touch method.

The electronic device according to the present disclosure can recognize the user's touch directly or indirectly. When the user's touch is directly recognized as a touch, the electronic device can set the touch sensitivity to the first touch sensitivity (direct touch sensitivity) so as to correspond directly to the touch. When the user's touch is recognized as an indirect touch, the electronic device can set the touch sensitivity to the second touch sensitivity (indirect touch sensitivity) corresponding to the indirect touch. Here, the touch sensitivity may include a threshold value for determining whether or not to touch.

For example, when the threshold value is lower than the first set value for a predetermined time (e.g., 100 ms) in a state where the threshold value is set to the first set value (direct touch value), for example, When the amount of change in capacity is continuously detected, the electronic device recognizes the user's touch as an indirect touch and sets the threshold value to, for example, 20 as a second set value (indirect touch value). Accordingly, when the electronic device detects a change amount of capacitance equal to or larger than the second set value, it generates a touch event and can perform a function corresponding to the touch event. If the change amount of the electrostatic capacity higher than the first set value, for example, more than 60, is continuously detected for a predetermined time (e.g., 100 ms) while the threshold value is set to the second set value, And the threshold value is set to the first set value. Accordingly, the electronic device generates a touch event when the change amount of the electrostatic capacity equal to or larger than the first set value is detected (that is, when the electronic touch device is below the first set value, the touch event is not generated).

As another example, when a threshold value is set to a first set value and a frame having a variation amount of capacitance of, for example, 25 or more lower than the first set value in a display area (for example, 10 * 10 pixels) (E. G., 8 frames) continuously, the electronic device recognizes the user's touch as an indirect touch and sets the threshold value to the second set value. When frames (for example, eight frames) having a change amount of electrostatic capacitance higher than the first set value, for example, higher than 60, are continuously detected in a state where the threshold value is set to the second set value, And directly sets the threshold value to the first set value. Here, the frame may be a unit of sensing information (including a change in capacitance) generated by the touch screen panel per hour. For example, the touch screen panel can generate and transmit 30 frames per second to the touch screen controller.

As described above, the intermediate information used for setting the operating mode may include time, number of frames, area, and the like.

The mediation information may also include a touch location. For example, the electronic device may be equipped with a cover formed with a view area. Here, the view area may be a transparent material (e.g., tempered glass, acrylic, etc.). Accordingly, the user can view the touch screen through the view area when the cover is stacked on the touch screen (i.e., when the cover covers the touch screen). If the change amount of capacitance lower than the first set value is continuously detected at the touch position corresponding to the view area for a predetermined time while the threshold value is set to the first set value, And sets the threshold value to, for example, a second set value. If the change amount of the electrostatic capacity higher than the first set value is continuously detected (regardless of the touch position) for a predetermined time while the threshold value is set to the second set value, the electronic device directly touches the user's touch And sets the threshold value to the first set value.

The mediation information may also include sensed information indicating whether the cover is open. For example, the electronic device may include a sensor, such as a hall sensor, for sensing the opening or closing of the cover. Corresponding to this, a magnet may be mounted on the cover. When the hall sensor senses that the cover is closed, the electronic device sets the operating mode of the touch screen directly to the touch mode, and if the hall sensor detects opening of the cover, the electronic device can set the operating mode to the indirect touch mode.

The electronic device according to the present disclosure may include a capacitive touch key. Such a touch key can be installed adjacent to the screen. The electronic device according to the present disclosure can set the operating mode of the touch key to correspond to the operating mode of the touch screen. For example, if the operating mode of the touch screen is set to the direct touch mode, the operating mode of the touch key may also be set to the direct touch mode. When the operation mode of the touch screen is set to the indirect touch mode, the operation mode of the touch key can also be set to the indirect touch mode.

Hereinafter, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. In describing the embodiments, descriptions of techniques that are well known in the art to which the present disclosure pertains and are not directly related to the present disclosure may be omitted. Further, detailed description of components having substantially the same configuration and function can be omitted. In the drawings, some of the elements may be exaggerated, omitted, or schematically illustrated.

1 is a block diagram of an electronic device according to an embodiment of the present disclosure;

1, an electronic device 100 includes a display unit 110, a key input unit 120, a wireless communication unit 130, an audio processing unit 140, a speaker SPK, a microphone MIC, a sensor unit 150, A memory 160, and a control unit 170. [0027]

The display unit 110 may display various information on the screen under the control of the controller 170, in particular, an application processor (AP). For example, when the control unit 170 processes (e.g., decodes) information and stores the information in a memory (e.g., a frame buffer), the display unit 110 converts the data stored in the frame buffer into an analog signal and displays . The display unit 110 may be a liquid crystal display (LCD), an active matrix organic light emitting diode (AMOLED), a flexible display, or a transparent display.

When power is supplied to the display unit 110, the display unit 110 can display a lock image on the screen. If the user input (e.g., password) for unlocking is detected while the lock image is being displayed, the controller 170 can release the lock. When the lock is released, the display unit 110 can display, for example, a home image on the screen under the control of the controller 170, instead of the lock image. The home image may include a background and icons displayed thereon. Icons can indicate applications or content (e.g., photo files, video files, recorded files, documents, messages, etc.). When a user input for executing an application icon is detected, the control unit 170 can execute the application and control the display unit 110 to display the execution image on the screen.

The touch screen panel 111 is installed on the screen of the display unit 110. For example, the touch screen panel 111 may include an add-on type located on the screen of the display unit 110, an on-cell type or an in-cell type inserted in the display unit 110, -cell type).

The touch screen panel 111 may include a capacitive touch panel. The hand touch panel may include a plurality of scan input ports (hereinafter, scan ports) and a plurality of sense output ports (hereinafter, detection ports). The hand touch panel generates sensing information (e.g., a change amount of electrostatic capacitance) in response to a touch of a conductive object (e.g., a finger) by a scan control signal of a touch screen controller of the control unit 170, Information can be transmitted to the touch screen controller through the sensing port.

The touch screen panel 111 may include a pen touch panel, a digitizer sensor substrate. The pen touch panel may be formed of Electro-Magnetic Resonance (EMR). Accordingly, the pen touch panel can generate sensing information in response to a hovering or touch of a pen specially designed to form a magnetic field, and can transmit sensing information to the touch screen controller of the controller 170. The pen touch panel may include a button. For example, when the user depresses the button, the magnetic field generated in the coil of the pen may be changed. The pen touch panel may generate sensing information in response to a change in the magnetic field, and may transmit sensing information to the touch screen controller of the controller 170.

The key input unit 120 may include at least one capacitive touch key. The touch key may generate sensing information in response to a touch of a conductive object, and may transmit sensing information to the touch key controller of the controller 170.

The key input unit 120 may further include a key other than the touch key. For example, the key input unit 120 may include at least one dome key. When the user depresses the dome key, the dome key is deformed and contacts the printed circuit board, so that a key event is generated on the printed circuit board and can be transmitted to the controller 170. [ Meanwhile, the key of the key input unit 120 may be referred to as a hard key, and the key displayed on the display unit 110 may be referred to as a soft key.

The wireless communication unit 130 can perform voice communication, video communication, or data communication with an external device through a network under the control of the control unit 170. [ The wireless communication unit 130 may include a mobile communication module (e.g., a 3-Generation mobile communication module, a 3.5-Generation mobile communication module or a 4-Generation mobile communication module) (E.g., a DMB module) and a short range communication module (e.g., a Wi-Fi module, a bluetooth module, a NFC (Near Field Communication) module).

The audio processor 140 is coupled to a speaker SPK and a microphone MIC to perform input and output of audio signals for voice recognition, voice recording, digital recording, and communication do. The audio processing unit 140 receives an audio signal (e.g., audio data) from the control unit 170, D / A-converts the received audio signal to analog, amplifies the analog audio signal, and outputs the amplified audio signal to the speaker SPK. The speaker SPK converts an audio signal received from the audio processing unit 140 into a sound wave and outputs the sound wave. A microphone (MIC) converts sound waves from people or other sound sources into audio signals. The audio processing unit 140 A / D-converts the audio signal received from the microphone (MIC) into a digital signal, and transmits the audio signal to the controller 170.

The audio processing unit 140 can provide auditory feedback according to the change of the operating mode of the touch screen under the control of the controller 170. [ For example, when the operation mode is changed, the audio processing unit 140 can reproduce audio data or sound data to inform the user of the change.

The sensor unit 150 senses the state of the electronic device 100. The sensor unit 150 may include a sensor for sensing the opening or closing of the cover, for example, a hall sensor. The hall sensor may be mounted to a specific area of the electronic device 100 (e.g., a specific edge of a bezel area, a specific area of a top or bottom, a specific area of a left or right side) A magnet may be mounted on the cover corresponding to the position. Then, the hall sensor senses the magnet of the cover when the cover is closed, and transmits the sensing information indicating the cover closing to the controller 170. [ In addition, the sensor unit 150 may include an optical sensor as a sensor for sensing the opening or closing of the cover. The optical sensor can detect the opening / closing of the cover depending on whether an external optical signal is detected. The sensor unit 150 may include an acceleration sensor, a geomagnetic sensor, and / or a gyro sensor in addition to the sensor for detecting the opening / closing of the cover. The controller 170 controls the movement of the electronic device 100 And the rotation can be recognized.

The memory 160 may store data received according to the operation of the electronic device 100 or received from the outside through the wireless communication unit 130 under the control of the controller 170. [ The memory 160 may include a buffer as a data temporary store. The memory 160 may store various setting information for setting the usage environment of the electronic device 100 (e.g., screen brightness, vibration at the time of touch occurrence, automatic rotation of the screen, and the like). Accordingly, the control unit 170 can operate the electronic device 100 with reference to the setting information. The memory 160 may include a main memory and a secondary memory. The main memory may be implemented by, for example, a RAM or the like. The auxiliary memory may be implemented as a disk, a RAM, a ROM, a flash memory, or the like. The main memory may store various programs loaded from the auxiliary memory, such as boot programs, operating systems, and applications.

When the power of the battery is supplied to the controller 170, the boot program may be first loaded into the main memory. These boot programs can load the operating system into main memory. The operating system can load the application into main memory. The control unit 170 (for example, an AP (Applicatoin Processor)) accesses the main memory, decrypts the program's instructions (routines), and executes functions according to the decryption result. That is, various programs can be loaded into main memory and operated as a process.

The controller 170 controls the overall operation of the electronic device 100 and the signal flow between the internal configurations of the electronic device 100 and performs the function of processing the data and controls the power supply from the battery to the configurations do. The controller 170 may include a touch screen controller 171, a touch key controller 172 and an application processor (AP)

The touch screen controller 171 receives the sensing information from the touch screen panel 111 and analyzes it to recognize that touch, hovering, pressing of the pen button, or the like occurs. The touch screen controller 171 may determine the hovering area on the touch screen in response to the hovering and calculate the hovering coordinate (x_hovering, y_hovering) in the hovering area. The touch screen controller 171 may forward the hovering event including the calculated hovering coordinates to, for example, an application processor (AP) 173. The hovering event may also include a depth value. For example, the hovering event may include a three-dimensional hovering coordinate (x, y, z). Here, z value can mean depth. The touch screen controller 171 determines a touch area on the touch screen in response to the touch, and calculates touch coordinates (x_touch, y_touch) in the touch area. The touch screen controller 171 can transmit a touch event including the calculated touch coordinates to, for example, the application processor 173. [ The touch screen controller 171 may forward the pen button event to, for example, the application processor 173 in response to the pressing of the pen button.

The touch screen controller 171 may include a touch management module 171a. That is, the touch control module 171a may be firmware that is included in the memory (e.g., ROM, flash memory, or EPROM) of the touch screen controller 171 to allow the touch screen controller 171 to perform its operation. The touch management module 161 includes an operation for recognizing a touch method (for example, the direct touch method or the indirect touch method described above), an operation for setting an operation mode of the touch screen corresponding to the recognized touch method, May be set to perform an operation of setting an operation mode of the touch key corresponding to the mode. In addition, the touch management module 161 may include an operation of recognizing whether or not the cover is closed, an operation of setting the operation mode of the touch screen corresponding to the closed state of the cover, an operation mode of the touch screen corresponding to the open state of the cover Or may be set to perform the operation of

The touch management module 171a may be an application processor or firmware such as a central processing unit (CPU). Also, the touch management module 171a may be an application stored in the auxiliary memory and loaded into the main memory and executed under the operating system.

The touch key controller 172 receives the sensed information from the touch key and analyzes it to recognize that the touch is generated. The touch key controller 172 may transmit a touch key event, for example, to the application processor 173 in response to the touch.

The application processor 173 may receive a touch screen event (e.g., a hovering event, a touch event, a pen button event, etc.) from the touch screen panel 111 and perform a function corresponding to the touch screen event. Also, the application processor 173 may receive a touch key event from the touch key and perform a function corresponding to the touch key event.

The application processor 173 may execute various programs stored in the memory 160. [ That is, the application processor 173 can load various programs from the auxiliary memory to the main memory and operate them as a process.

Meanwhile, the control unit 170 may further include various processors in addition to the application processor 173. For example, the control unit 170 may include one or more central processing units (CPUs). In addition, the control unit 170 may include a graphics processing unit (GPU). The control unit 170 may also be configured to control the operation of the electronic device 100 when the electronic device 100 is a mobile communication module (e.g., a 3-generation mobile communication module, a 3.5-generation mobile communication module, a 4-generation mobile communication module, Module, etc.), it may further include a communication processor (CP). Each of the above-described processors may be integrated into a single package of two or more independent cores (e.g., quad-core) in a single integrated circuit. For example, the application processor 162 may be one integrated into a multicore processor. The above-described processors (e.g., application processor and ISP) may be system-on-chip (SoC) integrated into one chip. In addition, the above-described processors (e.g., application processor and ISP) may be packaged in a multi-layer.

On the other hand, the electronic device 100 may further include configurations not mentioned above such as an ear jack, a GPS receiving module, a camera, and the like.

Figs. 2A and 2B show an electronic device according to the present disclosure and its cover, Figs. 3A and 3B show a cover closed state and a cover open state in a state where a cover and an electronic device are combined, And FIG. 4B is a view for explaining an active area of the touch screen panel corresponding to the view area of the cover.

2A to 4B, the cover 200 includes a front cover 210 for protecting the display unit 130 of the electronic device and a cover 200 at the back of the electronic device, And a rear cover 240 for fixing the front cover 240 to the rear cover 240. Accordingly, the rear cover 240 is fixedly mounted on the electronic device, and the front cover 210 is folded. The front cover 210 has a view area 220 in which a hole is formed in a part of the area (or a part of the area is made of a transparent material) and the display part 130 can be seen even when the front cover 210 is folded . When the sensor unit 150 includes a hall sensor, the magnet 230 is mounted on the front cover 210 at a position corresponding to the hall sensor. 2B, the Hall sensor 150 is mounted at a position corresponding to the magnet 230 of the front cover 210 to fold the front cover 210 (i.e., open / close the cover) as shown in FIG. 2B, Can be recognized.

Thus, the cover 200 as shown in FIG. 2A can be coupled to an electronic device as shown in FIG. 3A, wherein the front cover 210 can be folded (opened) or unfolded (opened). When the front cover 210 is unfolded as shown in FIG. 3A, the front surface of the electronic device is exposed and the user can see information displayed on the display unit 130. FIG. The control unit 170 recognizes the open state of the cover and outputs a scan control signal to the entire scan port of the touch screen panel 111 to activate the entire area of the touch screen panel 111. [ In addition, the controller 170 may set the operation mode of the touch screen to correspond to the opened state of the cover.

As shown in FIG. 3B, when the front cover 210 is folded, the front surface of the electronic device can be protected, and the controller 170 can recognize that the cover 210 is in the closed state by the sensing information of the sensor unit 150. If so, the control unit 170 can change the displayed UI (user interface). For example, under the control of the controller 170, the display unit 110 may display the current time and date in the display area corresponding to the view area 230 as shown in FIG. 3B. The controller 170 activates the scan port and the sensing port of the touch screen panel 111 corresponding to the view area 230 when the cover is closed. At this time, if the user touches the view area 230, the controller 170 can detect this through the activated touch screen panel 111, and can perform a function corresponding to the touch. In addition, the controller 170 may set the operation mode of the touch screen to correspond to the closed state of the cover.

The view area 230 may be sized to view a portion of the touch screen. For example, the view area 230 can be set as a display area corresponding to some ports of the scan port (or the sense port) and the entire sense port (or the scan port) as shown in FIG. 4A. 4A, when the front cover 210 is in the open state, the controller 170, that is, the touch screen controller 171, activates both the scan ports TX1 and TX2 and activates the detection port RX. That is, the controller 170 outputs a scan control signal to the scan ports TX1 and TX2, and receives detection information from the detection port RX. The controller 170 analyzes the sensing information and recognizes whether or not the touch is performed on the entire touch screen. At this time, the controller 170 may set the threshold value of the electrostatic capacity for determining whether or not the touch is made to correspond to the open state. When the front cover 210 is in the closed state, the touch screen controller 171 activates the scan port TX1, deactivates the scan port TX2, and activates the detection port RX. That is, the controller 170 outputs a scan control signal to the scan port TX1 and receives detection information from the detection port RX. The controller 170 analyzes the sensing information and recognizes whether or not the display area corresponding to the view area 230 is touched. At this time, the control unit 170 may set the threshold value of the electrostatic capacity for determining whether to touch or not to correspond to the closed state.

Also, the view area 230 may be set as a display area corresponding to some of the scan port and the sense port, as shown in FIG. 4B. 4b, if the front cover 210 is open, the controller 170 activates both the scan ports TX1 and TX2 and activates the detection ports RX1 and RX2. When the front cover 210 is in the closed state, the controller 170 activates the scan port TX1, deactivates the scan port TX2, activates the detection port RX1, and deactivates the detection port RX2.

5 is a diagram showing an electronic device and a touch glove according to the present disclosure.

Referring to FIG. 5, the user can touch the touch screen while holding the touch glove 510 in his / her hand. Then, the touch screen panel 111 may generate sensing information and transmit the sensed information to the controller 170, i.e., the touch screen controller 171. The controller 170 analyzes the sensing information and recognizes that the user's touch is an indirect touch (e.g., a glove touch). For example, if a change amount of capacitance lower than the currently set direct touch value is continuously detected for a predetermined time (e.g., 100 ms), the controller 170 can recognize the user's touch as an indirect touch. Accordingly, the controller 170 can change the threshold value to a set value corresponding to the indirect touch.

6 is a flow chart illustrating a method for setting a touch screen to an indirect touch mode in accordance with the present disclosure.

Referring to FIG. 6, in operation 610, the controller 170 analyzes the sensed information detected through the touch screen panel 111. In operation 620, the controller 170 recognizes the user's touch on the touch screen as an indirect touch according to the result of the analysis operation 610. For example, when the threshold value is set to the first set value (direct touch value) and the change amount of the capacitance lower than the first set value is continuously detected for a predetermined time, the controller 170 controls the touch of the user indirectly It can be recognized as a touch (e.g., glove touch). Further, in a state in which the threshold value is set to the first set value, in a touch screen area having a predetermined size (e.g., a display area corresponding to the view area 230 of the front cover 210) When frames (e.g., eight frames) having a change amount of capacitance are continuously detected, the controller 170 may recognize the user's touch as an indirect touch (e.g., a touch in the cover closed state). In operation 630, the controller 170 sets the touch sensitivity to correspond to the indirect touch. For example, the threshold value may be changed to the second set value. In addition, when recognized as a touch in the cover closed state, a part of the scan port (e.g., TX1) may be activated and another part (e.g., TX2) may be deactivated and the entire sense port may be activated. In addition, when recognized as a touch in the closed state of the cover, a portion of the scan port (e.g. TX1) is activated and another part of the scan port (e.g. TX2) is deactivated and a part of the sense port (e.g. RX1) And another part of the sense port (eg, RX2) may be deactivated. In operation 640, the controller 170 processes the sensed information detected through the touch screen panel 111 based on the sensed touch sensitivity (e.g., recognizes whether the touch is sensed and performs a function corresponding to the sensed touch) .

The operations of FIG. 6 can be performed by the touch screen controller 171 incorporated in the controller 170 as the firmware of the touch management module 171a. If the touch management module 171a is the firmware embedded in the processor, the processor may perform the operations of Fig. Further, the touch management module 171a may be an application (or a part of the operating system), and in this case, the operations of Fig. 6 may be performed by the application processor 173. [ The operations described below can also be performed by the touch screen controller 171 or the application processor 173. [

7 is a flowchart illustrating a method for setting a touch screen directly in a touch mode according to the present disclosure.

Referring to FIG. 7, in operation 710, the controller 170 analyzes the sensing information detected through the touch screen panel 111. FIG. In operation 720, the controller 170 recognizes the user's touch on the touch screen as a direct touch according to the result of the analysis operation 710. For example, when the analysis result is "the change amount of the electrostatic capacity higher than the direct touch value (direct touch value> indirect touch value) is detected in the state that the threshold value is set to the indirect touch value, (E.g., a finger touch or a touch in a cover open state). In addition, when the threshold value is set to the indirect touch value and the amount of change in the electrostatic capacitance higher than the direct touch value is continuously detected for a predetermined time, the controller 170 may directly recognize the touch of the user as a touch. In addition, when frames (e.g., 8 frames) having a capacitance change amount higher than the direct touch value are continuously detected in a state where the threshold value is set to the indirect touch value, the controller 170 directly touches the user's touch It can also be recognized. In operation 730, the controller 170 sets the touch sensitivity to correspond directly to the touch. For example, the threshold can be changed directly to a touch value. In addition, both the scan port and the sense port may be activated. In operation 740, the control unit 170 may process detection information detected through the touch screen panel 111 based on the set touch sensitivity.

8 is a flowchart illustrating a method for changing an operation mode of the touch screen and the touch key from the direct touch mode to the indirect touch mode according to the present disclosure.

Referring to FIG. 8, in operation 810, the control unit 170 checks whether or not detection information is detected through the touch screen panel 111. FIG. When the sensing information is detected, the controller 170 analyzes the sensing information at operation 820. [ In operation 830, the controller 170 determines whether an indirect touch is generated (for example, whether a glove touch is generated or a touch is generated in a closed state) based on the sensed information. For example, if a change amount of the capacitance lower than the direct touch value is continuously detected for a predetermined time, it can be determined that the indirect touch has occurred. Also, if frames having a variation amount of capacitance lower than the direct touch value are continuously detected by a predetermined number (e.g., eight), it can be determined that the indirect touch has occurred. If it is determined that the indirect touch has occurred, the controller 170 determines whether the current operation mode of the touch screen is the indirect touch mode at operation 840. If the current operating mode is not the indirect touch mode, the controller 170 changes the operation mode of the touch screen and the touch key 121 from the direct touch mode to the indirect touch mode at operation 850. For example, the threshold value for determining whether or not a touch is generated in the touch screen and the touch key 121 may be changed to a set value corresponding to the indirect touch mode. In addition, a scan port not corresponding to the view area 230 may be changed to an inactive state. In addition, the detection port not corresponding to the view area 230 may be changed to the inactive state.

9 is a flowchart for explaining an example of a method for changing the operation mode of the touch key from the direct touch mode to the indirect touch mode according to the present disclosure.

Referring to FIG. 9, in operation 910, the control unit 170 checks whether or not detection information is detected through the touch screen panel 111. If the sensing information is detected, the controller 170 analyzes the sensing information at operation 920. In operation 930, the controller 170 determines whether an indirect touch is generated based on the sensing information (for example, whether a glove touch is generated or a touch is generated in a closed state of the cover). If it is determined that the indirect touch has occurred, the controller 170 determines whether the current operation mode of the touch screen is the indirect touch mode at operation 940. If the current operation mode is not the indirect touch mode, the controller 170 changes the operation mode of the touch screen from the direct touch mode to the indirect touch mode at operation 950. For example, the threshold value for determining whether a touch is generated on the touch screen may be changed to a setting value corresponding to the indirect touch mode. In addition, a scan port not corresponding to the view area 230 may be changed to an inactive state. In addition, the detection port not corresponding to the view area 230 may be changed to the inactive state. In operation 960, the controller 170 determines whether the operation mode of the touch key 121 is the indirect touch mode. If the current operation mode of the touch key 121 is not the indirect touch mode, the control unit 170 changes the operation mode of the touch key 121 from the direct touch mode to the indirect touch mode at operation 970. For example, the threshold value for determining whether or not a touch is generated in the touch key 121 may be changed to a set value corresponding to the indirect touch mode.

10 is a flowchart for explaining another example of a method for changing the operating mode of the touch key from the direct touch mode to the indirect touch mode according to the present disclosure.

Referring to FIG. 10, in operation 1010, the control unit 170 checks whether or not detection information is detected through the touch key 121 of the key input unit 120. When the sensing information is detected, the controller 170 analyzes the sensing information at operation 1020. [ In operation 1030, the controller 170 determines whether an indirect touch is generated based on the sensing information (for example, whether or not a glove touch is generated). For example, if a change amount of the capacitance lower than the direct touch value is continuously detected for a predetermined time, it can be determined that the indirect touch is generated in the touch key 121. Also, if frames having a variation amount of capacitance lower than the direct touch value are continuously detected by a predetermined number (e.g., 8), it can be determined that the indirect touch is generated in the touch key 121. If it is determined that the indirect touch is generated in the touch key 121, the controller 170 determines in operation 1040 whether the current operation mode of the touch key 121 is the indirect touch mode. If the current operating mode of the touch key 121 is not the indirect touch mode, the controller 170 changes the operation mode of the touch key 121 from the direct touch mode to the indirect touch mode at operation 1050. For example, the threshold value for determining whether a touch is generated in the touch key may be changed to a setting value corresponding to the indirect touch mode.

11 is a diagram for explaining a processing procedure for changing the operating mode of the touch screen and the touch key in the electronic device according to the present disclosure.

The electronic device 100 according to the present disclosure may have a hierarchical structure as shown in FIG.

11, the hardware 1110 may include a touch screen controller 171, a touch key controller 172, and an application processor 173. There is a driver set 1120 on top of this hardware 1110. The driver set 1120 may include a touch screen panel (TSP) driver 1121, a touch key driver 1122, and an inter-integrated circuit (I2C) driver 1123. Each of these drivers 1121, 1122 and 1123 receives an instruction from the operating system 1130 and controls the input and output of the peripheral in response to the instruction. An operating system 1130 exists on top of this driver set 1120 and an application 1140 is present on this set 1130.

The internal memory of the touch screen controller 171 may include firmware for performing an operation of changing the operation mode of the touch screen. Accordingly, in operation 1, when the touch screen controller 171 recognizes the indirect touch of the touch screen panel 111, the operation mode of the touch screen can be changed from the direct touch mode to the indirect touch mode. In operation 2, the touch screen controller 171 transmits raw data including "information indicating that the operating mode of the touch screen is changed from the direct touch mode to the indirect touch mode" to the I2C interface of the application processor 173 173a. For example, the row data may include a switch value and a status value. When the operation mode of the touch screen is set to the direct touch mode, the switch value is '0' and the status value is '1' When the operation mode of the touch screen is set to the indirect touch mode, the switch value may be '1' and the status value may be '6'. On the other hand, the row data may further include identification information, x coordinate values, y coordinate values, width information, and pressure information.

In operation 3, the I2C interface 173a transfers the row data to the I2C driver 1123. In operation 4, the I 2 C driver 1123 transfers the row data to the TSP driver 1121. In operation 5-1, the TSP driver 1121 transmits a mode change notification message to the operating system 1130 indicating that the operation mode of the touch screen is changed from the direct touch mode to the indirect touch mode. In operation 5-2, the TSP driver 1121 transmits a mode change notification message to the touch key driver 1122. Accordingly, in operation 6, the operating system 1130 may forward the mode change notification message to the application 1140. [

In operation 7, the touch key driver 1122 transmits a mode change command message instructing the I2C driver 1123 to change the operation mode of the touch key from the direct touch mode to the indirect touch mode in response to reception of the mode change notification message . In operation 8, the I2C driver 1123 transfers a mode change command message to the I2C interface 173a. In operation 9, the I2C interface 173a transmits a mode change command message to the touch key controller 172. [ Then, in operation 10, the touch key controller 172 changes the operation mode of the touch key from the direct touch mode to the indirect touch mode.

Meanwhile, the processing procedure of changing the operation mode of the touch screen and the touch key from the indirect touch mode to the direct touch mode may be performed in the same manner as in Fig.

The method according to the present disclosure as described above can be recorded in a computer-readable recording medium implemented with program instructions that can be executed through various computers. The recording medium may include a program command, a data file, a data structure, and the like. Also, the program instructions may be those specially designed and constructed for the present invention or may be available to those skilled in the computer software. In addition, a recording medium includes a magnetic medium such as a hard disk, a floppy disk and a magnetic tape, an optical medium such as a CD-ROM and a DVD, and a magnetic optical medium such as a floppy disk. Hardware such as a magneto-optical medium, a ROM, a RAM, a flash memory, and the like may be included. The program instructions may also include machine language code such as those generated by the compiler, as well as high-level language code that may be executed by the computer using an interpreter or the like.

The method and apparatus according to the present disclosure are not limited to the above-described embodiments, and can be variously modified and practiced within the scope of the technical idea of the present disclosure.

100: Electronic device
110: display portion 111: touch screen panel
120: key input unit 121: touch key
130: wireless communication unit 140: audio processing unit
150: sensor unit 160: memory
170: Touch screen controller 171a: Touch management module
172: Touch key controller 173: Application processor

Claims (13)

A method of operating an electronic device having a touch screen panel,
Recognizing an indirect touch based on sensed information detected through the touch screen panel; And
And setting the touch sensitivity of the touch screen panel to correspond to the indirect touch. The method according to claim 1,
The recognizing operation may be performed when a change amount of capacitance lower than the direct touch value is continuously detected for a predetermined time in a state where a threshold value for determining whether or not a touch is directly set to a touch value is continuously detected, And recognizing that the indirect touch is generated when a predetermined number of pieces of sensed information having a capacitance change amount lower than the direct touch value are continuously detected in a state where the indirect touch is generated,
Wherein the act of setting comprises setting the threshold to an indirect touch value that is lower than the direct touch value. 3. The method of claim 2,
The electronic device has a touch key,
Further comprising setting the touch sensitivity of the touch key to correspond to the indirect touch. 3. The method of claim 2,
Further comprising changing the threshold value to the direct touch value when a change amount of capacitance higher than the direct touch value is detected while the threshold value is set to the indirect touch value. The method according to claim 1,
Wherein the operations are performed by a touch screen controller of the electronic device,
The touch screen controller transmitting information related to a change of an operating mode of the touch screen to a processor of the electronic device;
The processor transmitting a mode change command message to a touch key controller of the electronic device,
Wherein the touch key controller further comprises an operation of changing the touch sensitivity of the touch key. The method according to claim 1,
The electronic device further includes a sensor for detecting whether the cover is closed,
Recognizing a closure of the cover based on sensed information detected through the sensor;
Further comprising setting the touch sensitivity of the touch screen panel to correspond to a closure of the cover. A touch screen panel for generating sensing information in response to a touch to the touch screen;
A processor;
A touch screen controller for generating a touch event based on the sensing information and transmitting the touch event to the processor; And
A touch management module for allowing the touch screen controller to perform an operation of recognizing the indirect touch based on the sensing information detected through the touch screen panel and an operation of setting the touch sensitivity of the touch screen panel to correspond to the indirect touch, ;
≪ / RTI > 8. The method of claim 7,
The touch management module includes:
Wherein the electronic device is embedded in a memory of the touch screen controller. 9. The method of claim 8,
The touch management module includes:
When a change amount of capacitance lower than the direct touch value is continuously detected for a predetermined time while a threshold value for determining whether or not the touch is directly set to the touch value or when the threshold value is set to the direct touch value, An operation of recognizing that the indirect touch is generated when a predetermined number of pieces of sensing information having a variation amount of capacitance lower than the direct touch value are continuously detected;
And setting the threshold value to an indirect touch value lower than the direct touch value. 10. The method of claim 9,
A touch key,
Further comprising a touch key controller for setting a touch sensitivity of the touch key to correspond to the indirect touch. 10. The method of claim 9,
The touch management module includes:
And changing the threshold value to the direct touch value when a change amount of capacitance higher than the direct touch value is detected while the threshold value is set to the indirect touch value. 8. The method of claim 7,
Touch key
Further comprising a touch key controller for controlling the touch key,
Wherein the touch screen controller communicates information related to a change in operating mode of the touch screen to a processor of the electronic device,
The processor transmits a mode change command message to the touch key controller,
Wherein the touch key controller changes the touch sensitivity of the touch key. 8. The method of claim 7,
Further comprising a sensor for detecting whether the cover is closed,
The touch management module includes:
Wherein the operation of recognizing the closing of the cover based on the sensing information detected through the sensor and the operation of setting the touch sensitivity of the touch screen panel to correspond to the closing of the cover are performed.

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