KR20180014446A - Electronic device and method for controlling touch screen display - Google Patents

Abstract

An electronic device is disclosed. The electronic device according to an embodiment of the present invention includes a sensor for sensing an approach of one side of a protective cover mounted on the electronic device with regard to the front side of the electronic device, a display panel which is exposed through the front side of the electronic device, a touch panel arranged in parallel with the display panel, a touch IC for driving the touch panel, a display driver IC for driving the display panel, and a processor which is electrically connected to the sensor, the touch IC, and the display driver IC, and controls the display driver IC to reduce a frequency of a driving signal supplied to the display panel if the approach of one side of the protective cover is sensed by the sensor. Besides, various embodiments grasped through the present specification are possible. Accordingly, the present invention can improve the performance of the touch panel.

Description

TECHNICAL FIELD [0001] The present invention relates to a touch screen display control method for an electronic device and an electronic device,

The embodiments disclosed herein relate to a technique for controlling a display module and a touch module included in an electronic device.

Various types of electronic products are being developed and distributed by the development of electronic technology. In recent years, electronic devices having various functions such as smart phones, tablet PCs, and wearable devices have been spreading. The above-described electronic device may include a display module (e.g., a display panel and a display driver IC) for outputting visual information as an output device, a touch module (e.g., a touch panel and / Touch IC). The thickness of the display module and the touch module is gradually decreasing to make the electronic device thinner.

The distance between the display module and the touch module may become closer as the thickness of the electronic device becomes thinner and the thickness of the display module and the touch module becomes thinner. When the distance between the display module and the touch module approaches, the electrical signal generated by the display module may affect the touch module. For example, the noise in the touch module may be increased by an electrical signal generated in the display module. Accordingly, the signal to noise ratio (SNR) of the touch module may be reduced, and the performance of the touch module may deteriorate. Meanwhile, when a protective cover in the form of a flip cover that covers the front surface of the electronic device is mounted on the electronic device, in order to recognize a touch input through the flip cover while the flip cover is covered on the front surface of the electronic device, It may be required to improve the sensitivity.

The embodiments disclosed in this document can provide an electronic device and method that can improve the SNR of a touch module by reducing the influence of the display module in order to solve the problems described above and the problems raised in this document.

An electronic device according to an embodiment disclosed in this document includes a sensor for sensing the approach of one side of a protective cover mounted on an electronic device to the front of the electronic device, a display panel exposed through a front surface of the electronic device, A touch IC for driving the touch panel, a display driver IC for driving the display panel, and a sensor, a touch IC, and a display drive IC, And a processor for controlling the display driving IC so that the frequency of the driving signal supplied to the display panel is reduced when the access is sensed.

The method according to one embodiment disclosed in this document can be implemented by detecting the approach of one side of the protective cover mounted on the electronic device to the front of the electronic device and the approach of one side of the protective cover, And reducing the frequency of the driving signal supplied to the panel.

A storage medium according to an embodiment disclosed herein is implemented by at least one processor included in an electronic device and is stored with computer readable instructions, the instructions being executable on an electronic device When the operation of sensing the approach of one side of the protective cover and the approach of one side of the protective cover are detected, it can be set to perform the operation of reducing the frequency of the drive signal supplied to the display panel included in the electronic device.

According to the embodiments disclosed in this document, by reducing the driving frequency of the display when the protective cover covers the front surface of the electronic device, the noise sensed by the touch panel can be reduced and the performance of the touch panel can be improved.

In addition, various effects can be provided that are directly or indirectly understood through this document.

1 illustrates an electronic device in a network environment according to various embodiments.
2 shows a block diagram of an electronic device according to various embodiments.
3 shows a block diagram of a program module according to various embodiments.
4 is a block diagram showing a configuration of an electronic device according to an embodiment.
5 is a graph showing electrical signals generated in an electronic device according to an embodiment.
6 is a flowchart illustrating a method of controlling a touch screen display of an electronic device according to an exemplary embodiment of the present invention.
FIG. 7 illustrates noise due to position generated by a display included in an electronic device according to an embodiment.
8 shows a user interface output when a protective cover is attached to the electronic device according to the embodiment.
9 shows a back surface of an electronic device according to one embodiment and a protective cover mounted to the electronic device.
10 illustrates a user interface for selecting a high sensitivity mode in an electronic device according to one embodiment.
11 shows a wireless charger connected to an electronic device and an electronic device according to an embodiment.

Hereinafter, various embodiments of the present document will be described with reference to the accompanying drawings. It is to be understood that the embodiments and terminologies used herein are not intended to limit the invention to the particular embodiments described, but to include various modifications, equivalents, and / or alternatives of the embodiments. In connection with the description of the drawings, like reference numerals may be used for similar components. The singular expressions may include plural expressions unless the context clearly dictates otherwise. In this document, the expressions "A or B" or "at least one of A and / or B" and the like may include all possible combinations of the items listed together. Expressions such as " first, "" second," " first, "or" second, " But is not limited to those components. When it is mentioned that some (e.g., first) component is "(functionally or communicatively) connected" or "connected" to another (second) component, May be connected directly to the component, or may be connected through another component (e.g., a third component).

In this document, the term " configured to (or configured) to "as used herein is intended to encompass all types of hardware, software, , "" Made to "," can do ", or" designed to ". In some situations, the expression "a device configured to" may mean that the device can "do " with other devices or components. For example, a processor configured (or configured) to perform the phrases "A, B, and C" may be implemented by executing one or more software programs stored in a memory device or a dedicated processor (e.g., an embedded processor) , And a general purpose processor (e.g., a CPU or an application processor) capable of performing the corresponding operations.

Electronic devices in accordance with various embodiments of the present document may be used in various applications such as, for example, smart phones, tablet PCs, mobile phones, videophones, electronic book readers, desktop PCs, laptop PCs, netbook computers, workstations, a portable multimedia player, an MP3 player, a medical device, a camera, or a wearable device. Wearable devices may be of the type of accessories (eg, watches, rings, bracelets, braces, necklaces, glasses, contact lenses or head-mounted-devices (HMD) (E.g., a skin pad or tattoo), or a bio-implantable circuit. In some embodiments, the electronic device may be, for example, a television, a digital video disk (Such as Samsung HomeSync ™, Apple TV ™, or Google TV ™), which can be used in a variety of applications such as home appliances, audio, refrigerator, air conditioner, vacuum cleaner, oven, microwave oven, washing machine, air purifier, set top box, home automation control panel, , A game console (e.g., Xbox (TM), PlayStation (TM)), an electronic dictionary, an electronic key, a camcorder, or an electronic frame.

In an alternative embodiment, the electronic device may be any of a variety of medical devices (e.g., various portable medical measurement devices such as a blood glucose meter, a heart rate meter, a blood pressure meter, or a body temperature meter), magnetic resonance angiography (MRA) A navigation system, a global navigation satellite system (GNSS), an event data recorder (EDR), a flight data recorder (FDR), an automobile infotainment device, a marine electronic equipment (For example, marine navigation systems, gyro compasses, etc.), avionics, security devices, head units for vehicles, industrial or domestic robots, drones, ATMs at financial institutions, of at least one of the following types of devices: a light bulb, a fire detector, a fire alarm, a thermostat, a streetlight, a toaster, a fitness device, a hot water tank, a heater, a boiler, . According to some embodiments, the electronic device may be a piece of furniture, a building / structure or part of an automobile, an electronic board, an electronic signature receiving device, a projector, or various measuring devices (e.g., Gas, or radio wave measuring instruments, etc.). In various embodiments, the electronic device is flexible or may be a combination of two or more of the various devices described above. The electronic device according to the embodiment of the present document is not limited to the above-described devices. In this document, the term user may refer to a person using an electronic device or a device using an electronic device (e.g., an artificial intelligence electronic device).

Referring to Figure 1, in various embodiments, an electronic device 101 in a network environment 100 is described. The electronic device 101 may include a bus 110, a processor 120, a memory 130, an input / output interface 150, a display 160, and a communication interface 170. In some embodiments, the electronic device 101 may omit at least one of the components or additionally include other components. The bus 110 may include circuitry to connect the components 110-170 to one another and to communicate communications (e.g., control messages or data) between the components. Processor 120 may include one or more of a central processing unit, an application processor, or a communications processor (CP). The processor 120 may perform computations or data processing related to, for example, control and / or communication of at least one other component of the electronic device 101.

Memory 130 may include volatile and / or non-volatile memory. Memory 130 may store instructions or data related to at least one other component of electronic device 101, for example. According to one embodiment, the memory 130 may store software and / or programs 140. The program 140 may include, for example, a kernel 141, a middleware 143, an application programming interface (API) 145, and / or an application program . At least some of the kernel 141, middleware 143, or API 145 may be referred to as an operating system. The kernel 141 may include system resources used to execute an operation or function implemented in other programs (e.g., middleware 143, API 145, or application program 147) (E.g., bus 110, processor 120, or memory 130). The kernel 141 also provides an interface to control or manage system resources by accessing individual components of the electronic device 101 in the middleware 143, API 145, or application program 147 .

The middleware 143 can perform an intermediary role such that the API 145 or the application program 147 can communicate with the kernel 141 to exchange data. In addition, the middleware 143 may process one or more task requests received from the application program 147 according to the priority order. For example, middleware 143 may use system resources (e.g., bus 110, processor 120, or memory 130, etc.) of electronic device 101 in at least one of application programs 147 Prioritize, and process the one or more task requests. The API 145 is an interface for the application 147 to control the functions provided by the kernel 141 or the middleware 143. The API 145 is an interface for controlling the functions provided by the application 141. For example, An interface or a function (e.g., a command). Output interface 150 may be configured to communicate commands or data entered from a user or other external device to another component (s) of the electronic device 101, or to another component (s) of the electronic device 101 ) To the user or other external device.

The display 160 may include a display such as, for example, a liquid crystal display (LCD), a light emitting diode (LED) display, an organic light emitting diode (OLED) display, or a microelectromechanical system (MEMS) display, or an electronic paper display . Display 160 may display various content (e.g., text, images, video, icons, and / or symbols, etc.) to a user, for example. Display 160 may include a touch screen and may receive a touch, gesture, proximity, or hovering input using, for example, an electronic pen or a portion of the user's body. The communication interface 170 establishes communication between the electronic device 101 and an external device (e.g., the first external electronic device 102, the second external electronic device 104, or the server 106) . For example, communication interface 170 may be connected to network 162 via wireless or wired communication to communicate with an external device (e.g., second external electronic device 104 or server 106).

The wireless communication may include, for example, LTE, LTE-A (LTE Advance), code division multiple access (CDMA), wideband CDMA (WCDMA), universal mobile telecommunications system (UMTS), wireless broadband (WiBro) System for Mobile Communications), and the like. According to one embodiment, the wireless communication may be wireless communication, such as wireless fidelity (WiFi), Bluetooth, Bluetooth low power (BLE), Zigbee, NFC, Magnetic Secure Transmission, Frequency (RF), or body area network (BAN). According to one example, wireless communication may include GNSS. GNSS may be, for example, Global Positioning System (GPS), Global Navigation Satellite System (Glonass), Beidou Navigation Satellite System (Beidou) or Galileo, the European global satellite-based navigation system. Hereinafter, in this document, " GPS " can be used interchangeably with " GNSS ". The wired communication may include, for example, at least one of a universal serial bus (USB), a high definition multimedia interface (HDMI), a recommended standard 232 (RS-232), a power line communication or a plain old telephone service have. Network 162 may include at least one of a telecommunications network, e.g., a computer network (e.g., LAN or WAN), the Internet, or a telephone network.

Each of the first and second external electronic devices 102, 104 may be the same or a different kind of device as the electronic device 101. According to various embodiments, all or a portion of the operations performed in the electronic device 101 may be performed in one or more other electronic devices (e.g., electronic devices 102, 104, or server 106). According to the present invention, when electronic device 101 is to perform a function or service automatically or on demand, electronic device 101 may perform at least some functions associated therewith instead of, or in addition to, (E.g., electronic device 102, 104, or server 106) may request the other device (e.g., electronic device 102, 104, or server 106) Perform additional functions, and forward the results to the electronic device 101. The electronic device 101 may process the received results as is or additionally to provide the requested functionality or services. For example, Cloud computing, distributed computing, or client-server computing techniques can be used.

2 is a block diagram of an electronic device 201 according to various embodiments. The electronic device 201 may include all or part of the electronic device 101 shown in Fig. 1, for example. The electronic device 201 may include one or more processors (e.g., AP) 210, a communications module 220, a subscriber identification module 224, a memory 230, a sensor module 240, an input device 250, An interface 270, an audio module 280, a camera module 291, a power management module 295, a battery 296, an indicator 297, and a motor 298. The processor 290, The processor 210 may be, for example, an operating system or an application program to control a plurality of hardware or software components coupled to the processor 210, and to perform various data processing and operations. ) May be implemented, for example, as a system on chip (SoC). According to one embodiment, the processor 210 may further include a graphics processing unit (GPU) and / or an image signal processor. The cellular module 210 may include at least some of the components shown in Figure 2 (e.g., the cellular module 221) The processor 210 other components: processing by loading the command or data received from at least one (e.g., non-volatile memory) in the volatile memory) and can store the result data into the nonvolatile memory.

May have the same or similar configuration as communication module 220 (e.g., communication interface 170). The communication module 220 may include, for example, a cellular module 221, a WiFi module 223, a Bluetooth module 225, a GNSS module 227, an NFC module 228 and an RF module 229 have. The cellular module 221 can provide voice calls, video calls, text services, or Internet services, for example, over a communication network. According to one embodiment, the cellular module 221 may utilize a subscriber identity module (e.g., a SIM card) 224 to perform the identification and authentication of the electronic device 201 within the communication network. According to one embodiment, the cellular module 221 may perform at least some of the functions that the processor 210 may provide. According to one embodiment, the cellular module 221 may comprise a communications processor (CP). At least some (e.g., two or more) of the cellular module 221, the WiFi module 223, the Bluetooth module 225, the GNSS module 227, or the NFC module 228, according to some embodiments, (IC) or an IC package. The RF module 229 can, for example, send and receive communication signals (e.g., RF signals). The RF module 229 may include, for example, a transceiver, a power amplifier module (PAM), a frequency filter, a low noise amplifier (LNA), or an antenna. According to another embodiment, at least one of the cellular module 221, the WiFi module 223, the Bluetooth module 225, the GNSS module 227, or the NFC module 228 transmits / receives an RF signal through a separate RF module . The subscriber identification module 224 may include, for example, a card or an embedded SIM containing a subscriber identity module, and may include unique identification information (e.g., ICCID) or subscriber information (e.g., IMSI (international mobile subscriber identity).

Memory 230 (e.g., memory 130) may include, for example, internal memory 232 or external memory 234. Volatile memory (e.g., a DRAM, an SRAM, or an SDRAM), a non-volatile memory (e.g., an OTPROM, a PROM, an EPROM, an EEPROM, a mask ROM, a flash ROM , A flash memory, a hard drive, or a solid state drive (SSD). The external memory 234 may be a flash drive, for example, a compact flash (CF) ), Micro-SD, Mini-SD, extreme digital (xD), multi-media card (MMC), or memory stick, etc. External memory 234 may communicate with electronic device 201, Or may be physically connected.

The sensor module 240 may, for example, measure a physical quantity or sense the operating state of the electronic device 201 to convert the measured or sensed information into an electrical signal. The sensor module 240 includes a gesture sensor 240A, a gyro sensor 240B, an air pressure sensor 240C, a magnetic sensor 240D, an acceleration sensor 240E, a grip sensor 240F, A temperature sensor 240G, a UV sensor 240G, a color sensor 240H (e.g., an RGB (red, green, blue) sensor), a living body sensor 240I, And a sensor 240M. Additionally or alternatively, the sensor module 240 may be configured to perform various functions such as, for example, an e-nose sensor, an electromyography (EMG) sensor, an electroencephalograph (EEG) sensor, an electrocardiogram An infrared (IR) sensor, an iris sensor, and / or a fingerprint sensor. The sensor module 240 may further include a control circuit for controlling at least one or more sensors belonging to the sensor module 240. In some embodiments, the electronic device 201 further includes a processor configured to control the sensor module 240, either as part of the processor 210 or separately, so that while the processor 210 is in a sleep state, The sensor module 240 can be controlled.

The input device 250 may include, for example, a touch panel 252, a (digital) pen sensor 254, a key 256, or an ultrasonic input device 258. As the touch panel 252, for example, at least one of an electrostatic type, a pressure sensitive type, an infrared type, and an ultrasonic type can be used. Further, the touch panel 252 may further include a control circuit. The touch panel 252 may further include a tactile layer to provide a tactile response to the user. (Digital) pen sensor 254 may be part of, for example, a touch panel or may include a separate recognition sheet. Key 256 may include, for example, a physical button, an optical key, or a keypad. The ultrasonic input device 258 can sense the ultrasonic wave generated by the input tool through the microphone (e.g., the microphone 288) and confirm the data corresponding to the ultrasonic wave detected.

Display 260 (e.g., display 160) may include panel 262, hologram device 264, projector 266, and / or control circuitry for controlling them. The panel 262 may be embodied, for example, flexibly, transparently, or wearably. The panel 262 may comprise a touch panel 252 and one or more modules. According to one embodiment, the panel 262 may include a pressure sensor (or force sensor) capable of measuring the intensity of the pressure on the user's touch. The pressure sensor may be integrated with the touch panel 252 or may be implemented by one or more sensors separate from the touch panel 252. The hologram device 264 can display a stereoscopic image in the air using interference of light. The projector 266 can display an image by projecting light onto a screen. The screen may be located, for example, inside or outside the electronic device 201. The interface 270 may include, for example, an HDMI 272, a USB 274, an optical interface 276, or a D-sub (D-subminiature) 278. The interface 270 may, for example, be included in the communication interface 170 shown in FIG. Additionally or alternatively, the interface 270 may include, for example, a mobile high-definition link (MHL) interface, an SD card / multi-media card (MMC) interface, or an infrared data association have.

The audio module 280 can, for example, convert sound and electrical signals in both directions. At least some of the components of the audio module 280 may be included, for example, in the input / output interface 145 shown in FIG. The audio module 280 may process sound information input or output through, for example, a speaker 282, a receiver 284, an earphone 286, a microphone 288, or the like. The camera module 291 is, for example, a device capable of capturing still images and moving images, and according to one embodiment, one or more image sensors (e.g., a front sensor or a rear sensor), a lens, an image signal processor (ISP) , Or flash (e.g., an LED or xenon lamp, etc.). The power management module 295 can, for example, manage the power of the electronic device 201. [ According to one embodiment, the power management module 295 may include a power management integrated circuit (PMIC), a charging IC, or a battery or fuel gauge. The PMIC may have a wired and / or wireless charging scheme. The wireless charging scheme may include, for example, a magnetic resonance scheme, a magnetic induction scheme, or an electromagnetic wave scheme, and may further include an additional circuit for wireless charging, for example, a coil loop, a resonant circuit, have. The battery gauge can measure, for example, the remaining amount of the battery 296, the voltage during charging, the current, or the temperature. The battery 296 may include, for example, a rechargeable battery and / or a solar cell.

The indicator 297 may indicate a particular state of the electronic device 201 or a portion thereof (e.g., processor 210), e.g., a boot state, a message state, or a state of charge. The motor 298 can convert the electrical signal to mechanical vibration, and can generate vibration, haptic effects, and the like. The electronic device 201 is a mobile TV support device capable of processing media data conforming to standards such as digital multimedia broadcasting (DMB), digital video broadcasting (DVB), or the like : GPU). Each of the components described in this document may be composed of one or more components, and the name of the component may be changed according to the type of the electronic device. In various embodiments, an electronic device (e. G., Electronic device 201) may have some components omitted, further include additional components, or some of the components may be combined into one entity, The functions of the preceding components can be performed in the same manner.

3 is a block diagram of a program module according to various embodiments. According to one embodiment, program module 310 (e.g., program 140) includes an operating system that controls resources associated with an electronic device (e.g., electronic device 101) and / E.g., an application program 147). The operating system may include, for example, Android ™, iOS ™, Windows ™, Symbian ™, Tizen ™, or Bada ™. 3, program module 310 includes a kernel 320 (e.g., kernel 141), middleware 330 (e.g., middleware 143), API 360 (e.g., API 145) ), And / or an application 370 (e.g., an application program 147). At least a portion of the program module 310 may be preloaded on an electronic device, 102 and 104, a server 106, and the like).

The kernel 320 may include, for example, a system resource manager 321 and / or a device driver 323. The system resource manager 321 can perform control, allocation, or recovery of system resources. According to one embodiment, the system resource manager 321 may include a process manager, a memory manager, or a file system manager. The device driver 323 may include, for example, a display driver, a camera driver, a Bluetooth driver, a shared memory driver, a USB driver, a keypad driver, a WiFi driver, an audio driver, or an inter-process communication . The middleware 330 may provide various functions through the API 360, for example, to provide functions that are commonly needed by the application 370 or allow the application 370 to use limited system resources within the electronic device. Application 370 as shown in FIG. According to one embodiment, the middleware 330 includes a runtime library 335, an application manager 341, a window manager 342, a multimedia manager 343, a resource manager 344, a power manager 345, a database manager The location manager 350, the graphic manager 351, or the security manager 352. In this case, the service manager 341 may be a service manager, a service manager, a service manager, a package manager 346, a package manager 347, a connectivity manager 348, a notification manager 349,

The runtime library 335 may include, for example, a library module that the compiler uses to add new functionality via a programming language while the application 370 is executing. The runtime library 335 may perform input / output management, memory management, or arithmetic function processing. The application manager 341 can manage the life cycle of the application 370, for example. The window manager 342 can manage GUI resources used in the screen. The multimedia manager 343 can recognize the format required for reproducing the media files and can perform encoding or decoding of the media file using a codec according to the format. The resource manager 344 can manage the source code of the application 370 or the space of the memory. The power manager 345 may, for example, manage the capacity or power of the battery and provide the power information necessary for operation of the electronic device. According to one embodiment, the power manager 345 may interoperate with a basic input / output system (BIOS). The database manager 346 may create, retrieve, or modify the database to be used in the application 370, for example. The package manager 347 can manage installation or update of an application distributed in the form of a package file.

The connectivity manager 348 may, for example, manage the wireless connection. The notification manager 349 may provide the user with an event such as, for example, an arrival message, an appointment, a proximity notification, and the like. The location manager 350 can manage the location information of the electronic device, for example. The graphic manager 351 may, for example, manage the graphical effects to be presented to the user or a user interface associated therewith. Security manager 352 may provide, for example, system security or user authentication. According to one embodiment, the middleware 330 may include a telephony manager for managing the voice or video call function of the electronic device, or a middleware module capable of forming a combination of the functions of the above-described components . According to one embodiment, the middleware 330 may provide a module specialized for each type of operating system. Middleware 330 may dynamically delete some existing components or add new ones. The API 360 may be provided in a different configuration depending on the operating system, for example, as a set of API programming functions. For example, for Android or iOS, you can provide a single API set for each platform, and for Tizen, you can provide two or more API sets for each platform.

The application 370 may include a home 371, a dialer 372, an SMS / MMS 373, an instant message 374, a browser 375, a camera 376, an alarm 377, Contact 378, voice dial 379, email 380, calendar 381, media player 382, album 383, watch 384, healthcare (e.g., measuring exercise or blood glucose) , Or environmental information (e.g., air pressure, humidity, or temperature information) application. According to one embodiment, the application 370 may include an information exchange application capable of supporting the exchange of information between the electronic device and the external electronic device. The information exchange application may include, for example, a notification relay application for communicating specific information to an external electronic device, or a device management application for managing an external electronic device. For example, the notification delivery application can transmit notification information generated in another application of the electronic device to the external electronic device, or receive notification information from the external electronic device and provide the notification information to the user. The device management application may, for example, control the turn-on / turn-off or brightness (or resolution) of an external electronic device in communication with the electronic device (e.g., the external electronic device itself Control), or install, delete, or update an application running on an external electronic device. According to one embodiment, the application 370 may include an application (e.g., a healthcare application of a mobile medical device) designated according to the attributes of the external electronic device. According to one embodiment, the application 370 may include an application received from an external electronic device. At least some of the program modules 310 may be implemented (e.g., executed) in software, firmware, hardware (e.g., processor 210), or a combination of at least two of the same, Program, routine, instruction set or process.

4 is a block diagram showing a configuration of an electronic device according to an embodiment.

Referring to FIG. 4, the electronic device 401 according to one embodiment may be a mobile device used by a user. The electronic device 401 may be referred to as a mobile device, a mobile terminal, or user equipment (UE). The electronic device 401 according to one embodiment includes a display panel 410, a display driver IC 420, a touch panel 430, a touch IC 440, a sensor 450, an NFC (near field communication) An IC (Charger IC) 470, a memory 480 and / or a processor 490.

According to various embodiments, the display panel 410 may be disposed within the housing of the electronic device 401. [ The display panel 410 may be exposed through the front surface of the electronic device 401. The display panel 410 may output an image through the front surface of the electronic device 401.

According to various embodiments, a display driver IC (DDI) 420 may drive the display panel 410. [ The display driver IC 420 may supply a driving signal to the display panel 410. The driving signal may include, for example, a horizontal synchronizing signal and a vertical synchronizing signal. The display driver IC 420 can adjust the frequency of the driving signal.

According to various embodiments, the touch panel 430 may be disposed within the housing of the electronic device 401. [ The touch panel 430 may be disposed in parallel with the display panel 410. The touch panel 430 can sense a touch by a conductor to the front surface of the electronic device 401. [

4, the display panel 410 and the touch panel 430 are shown as separate components. However, the display panel 410 and the touch panel 430 may be implemented as a single module, You can also share some of the elements.

According to various embodiments, the touch IC 440 may drive the touch panel 430. The touch IC 440 can supply a scan signal to the touch panel 430. The touch IC 440 can recognize the coordinates touched based on the change of the scan signal. The touch IC 440 can change the frequency of the scan signal. The touch IC 440 may report the sensed data to the processor 490 using the touch panel 430. [ The touch IC 440 may change the report rate, which is the rate at which data is reported to the processor 490. [ The touch IC 440 may adjust a touch sensing area of the touch panel 430.

According to various embodiments, the sensor 450 may sense the approach of one side of the protective cover 403 mounted on the electronic device 401 to the front of the electronic device 401. The sensor 450 may be, for example, a Hall sensor. The protective cover 403 mounted on the electronic device 401 may be, for example, a flip cover. The first side of the protective cover 403 can be mounted on the rear side of the electronic device 401 and the second side of the protective cover 403 is connected to the first side of the protective cover 403, As shown in Fig. The sensor 450 can sense the second side of the protective cover 403 when the second side of the protective cover 403 overlaps the front side of the electronic device 401. [ For example, when the sensor 450 is an Hall sensor, a substance that generates a magnetic field may be included on the second surface of the protective cover 403, and the hall sensor senses the change of the magnetic field, The approach of the second side can be detected.

According to various embodiments, communication module 460 (e.g., an NFC module) can send or receive signals. The communication module 460 can obtain information about the protection cover 403 from the protection cover 403. [ For example, the communication module 460 can obtain the identification information of the protection cover 403 from the protection cover 403. [ The communication module 460 may obtain information on the thickness of the protective cover 403 from the protective cover 403. [ The signal received by communication module 460 may be processed by processor 490 and may be processed by a communication processor (not shown) coupled to communication module 460. [

According to various embodiments, the charge IC (470) may be a circuit associated with charging the battery of the electronic device (401). The charging IC 470 may be electrically connected to the processor 490. The charging IC 470 can acquire information related to the charging of the electronic device 401. [ For example, the charging IC 470 may recognize whether the electronic device 401 is being charged. For example, the charging IC 470 can recognize that the electronic device 401 is charged when the electronic device 401 and the charger 405 are connected. The charger 405 may be a wired charger or a wireless charger. The charging IC 470 may recognize whether the electronic device 401 is charged with wire or wirelessly.

According to various embodiments, memory 480 may store data and provide stored data. For example, the memory 480 may store data obtained by other configurations 410-470, 490 of the electronic device 401. The memory 480 may provide data stored in other configurations 410-470, 490 of the electronic device 401.

According to various embodiments, the processor 490 is electrically coupled to the display driver IC 420, the touch IC 440, the sensor 450, the communication module 460 and the charging IC 470 and / or the memory 480 Can be connected. Processor 490 may perform operations or data processing related to the control and / or communication of components 410-480 included in electronic device 401, for example.

According to one embodiment, the processor 490 can sense the approach of one side of the protective cover 403 using the sensor 450. The processor 490 may determine whether one side of the protective cover 403 covers the front surface of the electronic device 401 based on the data acquired by the sensor 450. [ For example, the processor 490 can determine that one side of the protective cover 403 is approaching when the protective cover 403 is folded so that one side of the protective cover 403 contacts the front side of the electronic device 401 have.

According to one embodiment, when the approach of one side of the protective cover 403 is detected by the sensor 450, the processor 490 controls the display driver IC 420 Can be controlled. For example, the processor 490 controls the display driver IC 420 so that the frequency of the horizontal synchronizing signal supplied to the display panel 410 is reduced when one side of the protective cover 403 contacts the front surface of the electronic device 401. [ Can be controlled. The frequency of the horizontal synchronization signal may be changed, for example, from about 60 Hz to about 40 Hz. The processor 490 can reduce the influence of the display panel 410 and the display driver IC 420 on the touch panel 430 by reducing the frequency of the driving signal.

According to one embodiment, when the approach of one side of the protective cover 403 is detected by the sensor 450, the processor 490 controls the touch IC 440 to increase the frequency of the scan signal supplied to the touch panel 430. [ Can be controlled. For example, the processor 490 may increase the frequency of the scan signal for sensing the touch when one surface of the protective cover 403 contacts the front surface of the electronic device 401. [ The frequency of the scan signal may be changed, for example, from about 180 kHz to about 312 kHz. As another example, the processor 490 may control the touch IC 440 such that the number of pulses of the scan signal included in the designated time period is increased. The processor 490 can increase the sensitivity of the touch panel 430 by increasing the frequency of the scan signal.

According to one embodiment, the processor 490 may determine that the touch rate of the touch IC 440 to the processor 490 is reduced when the approach of one side of the protective cover 403 is detected by the sensor 450. [ 440). The report rate can be changed, for example, from about 120 Hz to about 60 Hz. The processor 490 can perform the touch operation based on a larger number of samples and remove the white noise from the outside by reducing the report rate of the touch IC 440 and thereby reduce the SNR of the touch panel 430 .

According to one embodiment, when the approach of one side of the protective cover 403 is detected by the sensor 450, the processor 490 controls the touch IC 430 to reduce the area where the touch input is sensed by the touch panel 430 Can be controlled. Since the driving signal supplied to the display panel 410 is supplied to the upper end of the display panel 410, a relatively large noise may be generated at the upper and lower ends of the display panel 410. The processor 490 can control the touch IC 440 to sense a touch only at a central portion of the touch panel 430, for example, an area where noise is relatively small. For example, if the ordinate of the touch panel 430 is 0 to 2560, the processor 490 may control the touch IC 440 such that no touch is detected at coordinates 0 to 800 and 2080 to 2560. The processor 490 can prevent a malfunction of the touch panel 430 by limiting the touch sensing area to a small noise area.

According to one embodiment, the processor 490 may control the display driver IC 402 such that the frequency of the drive signal is reduced while the electronic device 401 is being charged. For example, the processor 490 may use the charging IC 470 to determine whether the electronic device 401 is being charged. The processor 490 can reduce the frequency of the driving signal since the magnitude of the noise can be increased when the electronic device 401 is being charged. The processor 490 may reduce the frequency of the drive signal to a lower level, for example, when the electronic device is being charged wirelessly, as compared to when the electronic device is under wired charge. The processor 490 can change the frequency of the scan signal, the scan rate of the touch IC 440, and the area where the touch input is sensed, as well as the frequency of the drive signal.

According to various embodiments, by controlling the display driver IC 420 and the touch IC 440 when the protective cover 403 covers the front surface of the electronic device 401, it is possible to detect the touch on the protective cover 403 The sensitivity of the touch panel 430 can be improved.

5 is a graph showing electrical signals generated in an electronic device according to an embodiment. The signals shown in FIG. 5 may be, for example, signals generated by the electronic device 400 shown in FIG.

Referring to FIG. 5A, an electronic device according to an embodiment may supply a first horizontal synchronization signal 511 to a display panel. The first noise 513 may be detected by the touch panel by the first horizontal synchronization signal 511. [ The electronic device can sense the touch during a period P1 in which the size of the first noise 513 is small. The electronic device can supply the touch panel with a first scan signal 515 including a pulse within the interval P1.

According to one embodiment, the electronic device is capable of generating a horizontal sync signal (e.g., when the protective cover is in contact with the front of the electronic device, when entering a high sensitivity mode, or when the electronic device is being charged, etc.) Can be changed.

Referring to FIG. 5 (b), the electronic device can supply the second horizontal synchronizing signal 521 to the display panel. The frequency of the second horizontal synchronizing signal 521 may be lower than the frequency of the first horizontal synchronizing signal 511. The second noise 523 may be sensed by the touch panel by the second horizontal synchronizing signal 521. [ Since the frequency of the second horizontal synchronizing signal 521 is lower than the frequency of the first horizontal synchronizing signal 511, the interval P2 in which the size of the second noise 523 is small can be longer than the interval P1. By extending the section P2 in which the touch can be detected, the electronic device can more easily detect the touch. The electronic device can supply the touch panel with a second scan signal 515 including a pulse within the interval P2. For example, the second scan signal 515 may include two pulses within the interval P2. By increasing the number of pulses included in the interval P2, the sensitivity of the touch panel can be improved.

According to one embodiment, the electronic device (e.g., processor 490) may control the touch IC to scan the touch input when the magnitude of the noise generated by the display panel or display driver IC is below a specified value. For example, the electronic device recognizes a period in which the size of the noise (e.g., the first noise 513 or the second noise 523) is lower than a specified value, (E.g., a first scan signal 515 or a second scan signal 525) including a pulse in the scan period (period P2).

5, the pulse included in the first scan signal 515 and the pulse included in the second scan signal 525 have the same waveform and width. However, the waveforms and the widths of the pulses included in the scan signal are not limited thereto, The width can be variously changed for each scan signal. 5, it is shown that there is no time gap between the start time and the end time of the period P1 and the period P2 and the scan signals 515 and 525, And a temporal gap may be included between the start and end times of the period P1 and the period P2 and the scan signals 515 and 525. [

6 is a flowchart illustrating a method of controlling a touch screen display of an electronic device according to an exemplary embodiment of the present invention.

Hereinafter, it is assumed that the electronic device 400 of FIG. 4 performs the process of FIG. 6, it is understood that the operations described as being performed by the electronic device 400 are controlled by the processor 490 of the electronic device 400. [

Referring to FIG. 6, at operation 610, the electronic device may sense the approach of one side of the protective cover to the front of the electronic device. For example, the electronic device can sense the approach of one side of the flip cover using the sensor when the flip cover mounted on the electronic device is closed (one side of the flip cover covers the front of the electronic device).

In operation 620, the electronic device may determine whether one side of the protective cover covers the front of the electronic device. For example, the electronic device may determine whether the flip cover is open or closed based on data sensed by the sensor. The electronic device may perform operation 630 if the flip cover is closed. The electronic device can maintain the frequency of the driving signal supplied to the display panel when the flip cover is opened.

According to various embodiments, when one side of the protective cover covers the front of the electronic device, in operation 630, the electronic device can reduce the frequency of the driving signal supplied to the display panel. For example, the electronic device can reduce the frequency of the horizontal synchronization signal supplied to the display panel to reduce the noise sensed by the touch panel when the flip cover is closed.

In operation 640, the electronic device may increase the frequency of the scan signal supplied to the touch panel. For example, the electronic device can increase the frequency of the scan signal in response to a decrease in the frequency of the drive signal. The electronic device can increase the frequency of the scan signal by increasing the number of scan pulses included in the interval of small noise to improve the sensitivity of the touch panel.

At act 650, the electronic device may reduce the report rate of the touch IC to the processor. For example, an electronic device can reduce the report rate to obtain a larger number of samples when performing a touch operation.

In operation 660, the electronic device may reduce the area in which the touch input of the touch panel is sensed. For example, the electronic device can sense the touch input only in a central area of the touch panel, which is a region where noise is relatively small in size. As another example, the electronic device may detect the touch input only in an area (for example, 811 in FIG. 8) corresponding to an area (for example, the area 830 in FIG. 8) have.

According to various embodiments, operations 640, 650, and 660 are operations that may optionally be performed, and some or all of operations 640, 650, and 660 may not be performed by the electronic device. Although operations 630 through 660 are shown as being performed sequentially in FIG. 6, operations 630 through 660 may be performed in any order.

FIG. 7 illustrates noise due to position generated by a display included in an electronic device according to an embodiment. The electronic device according to one embodiment may be, for example, the electronic device 400 shown in Fig.

Referring to FIG. 7, noise may be detected in the touch panel due to a driving signal supplied to the display panel. The numerical values shown in Fig. 7 mean the magnitude of the noise. The size of the noise is smaller as the numerical value approaches zero. Since the capacitance is set with respect to the center of the touch panel when the capacitance of the touch panel is set, the amount of noise detected at the top and bottom of the touch panel may be relatively larger than the center of the touch panel.

According to one embodiment, up to 50 or more noises can be sensed in the touch panel when the driving frequency is 60 Hz. In this case, a ghost touch may be generated at the upper and lower ends of the touch panel.

According to one embodiment, the electronic device is configured to provide a drive frequency of 60 Hz (for example, when the protective cover covers the front of the electronic device, when entering the high sensitivity mode, or when the electronic device is being charged, etc.) To 40Hz.

According to one embodiment, when the driving frequency is 40 Hz, no more than 23 noises can be detected on the touch panel. When the driving frequency is lowered, the magnitude of the noise sensed by the touch panel can be reduced. By reducing the size of the noise, the SNR of the touch panel can be increased and the performance of the touch panel can be improved.

8 shows a user interface output when a protective cover is attached to the electronic device according to the embodiment.

Referring to FIG. 8, one side of the protective cover 803 may be mounted on the rear surface of the electronic device 801. The electronic device 801 may include a display 810. The electronic device 801 may output a graphical user interface to the display 810. The protective cover 803 may include a first surface that is mounted to the rear surface of the electronic device 801 and a second surface that can cover the front surface of the electronic device 801. [ A portion of the second surface of the protective cover 803 may be a transparent region 830. The protective cover 803 may be, for example, a flip cover.

According to one embodiment, when the protective cover 803 is opened (e.g., when the protective cover 803 does not cover the front surface of the electronic device 801), the electronic device 801 has a first drive frequency (e.g., 0.0 > 60Hz) < / RTI > The electronic device 801 may display a call button 821 and / or a camera button 823, which are part of the graphical user interface, at the bottom of the display 810.

According to one embodiment, when the protective cover 803 is closed (e.g., when the second side of the protective cover 803 is in contact with the front surface of the electronic device 801), the electronic device 801 is moved to the second driving frequency (E.g., about 40 Hz) to drive the display 810. The electronic device 801 can improve the performance of the touch panel by adjusting the driving frequency, thereby making it possible to more accurately recognize the touch through the transparent region 830 of the protective cover 803. [

According to one embodiment, the electronic device 801 can control the touch IC so that the area where the touch input is sensed is set to the center of the touch panel. For example, the electronic device 801 can sense the touch input only in the area 811 corresponding to the transparent area 830 of the protective cover 803. [ A specific method for determining the region 811 corresponding to the transparent region 830 is as follows.

According to one embodiment, the electronic device 801 may obtain information about the protective cover 803 from the protective cover 803. For example, the electronic device 801 can obtain information about the protective cover 803 from the protective cover 803 using an NFC antenna. As another example, the electronic device 801 can obtain information about the protective cover 803 from the protective cover 803 via the contact 911 shown in Fig.

According to one embodiment, the electronic device 801 can determine the area 811 corresponding to the transparent area 830 based on the information on the protective cover 803. For example, if the information about the protection cover 803 includes information about the transparent area 830, the electronic device 801 can use the information about the protection cover 803 to determine the area 811 have. The electronic device 801 may correspond to the identification information of the protective cover 803 stored in the electronic device 801. In the case where the information on the protective cover 803 includes the identification information of the protective cover 803, Information about the area 811 to be obtained may be obtained. When the information on the protection cover 803 includes the identification information of the protection cover 803, the electronic device 801 is connected to the area 811 corresponding to the identification information of the protection cover 803 via the communication network from the external device Information about the user. When the electronic device 801 acquires information on the area 811, it can detect the touch input only in the area 811. [

According to one embodiment, when the protective cover 803 is closed, the electronic device 801 may display a graphical user interface on a portion of the display 810 that is determined based on information about the protective cover 803 . For example, the electronic device 801 may display a graphical user interface in an area 811 corresponding to the transparent area 830 of the protective cover 803. [ The electronic device 801 may display, for example, a call button 841 and a camera button 842 in the area 811. [ According to various embodiments, the graphical user interface may vary according to the type of protective cover 803.

9 shows a back surface of an electronic device according to one embodiment and a protective cover mounted to the electronic device.

9, the electronic device 901 may include a contact 911 below a battery cover (not shown) of the electronic device 901. [ The protective cover 902 may include a contact 922 on one side of the protective cover 902. One side of the protective cover 902 can be mounted on the rear side of the electronic device 901 in place of the battery cover. The contact 911 of the electronic device 901 and the contact 922 of the protective cover 902 can be electrically connected only when the protective cover 902 is mounted on the electronic device 901. [

According to one embodiment, the electronic device 901 may obtain information about the protective cover 902 from the protective cover 902 via the contact 911. For example, the electronic device 901 can obtain the identification information of the protective cover 902 from the protective cover 902. [ The electronic device 901 can reduce the frequency of the drive signal based on the identification information of the protective cover 902. [ For example, the electronic device 901 may change the frequency of the drive signal differently depending on the type of the protective cover 902. [ For example, the electronic device 901 may change the frequency of the drive signal to 40 Hz if the protective cover 902 is of the first type and change the frequency of the drive signal to 30 Hz if the protective cover 902 is of the second type . Depending on the information about the protective cover 902, the frequency of the driving signal, the frequency of the scan signal, the report rate, the area where the touch input is sensed, and / or the graphic user interface may be variously changed.

According to one embodiment, the electronic device 901 may reduce the frequency of the drive signal based on the thickness of the protective cover 902. For example, the electronic device 901 may change the frequency of the drive signal differently depending on the thickness of the protective cover 902. [ For example, the electronic device 901 may obtain information about the thickness of the protective cover 902 from the protective cover 902. As another example, the electronic device 901 may obtain information about the thickness of the protective cover 902 based on information about the protective cover 902 obtained from the protective cover 902. The electronic device 901 can change the frequency of the drive signal to 40 Hz when the thickness of the protective cover 902 is the first thickness. The electronic device 901 can change the frequency of the drive signal to 30 Hz to further improve the performance of the touch panel when the thickness of the protective cover 902 is a second thickness that is thicker than the first thickness.

Although the shape of the protective cover 902 is shown in Fig. 9 as being a form that can replace the battery cover of the electronic device 901, the protective cover is not limited to the back surface and the rear surface of the electronic device, It may be a form that can be fixed to the side surface. In this case, information on the protective cover, identification information on the protective cover, and / or information on the thickness of the protective cover may be obtained through an NFC module (e.g., the communication module 460 in FIG. 4) included in the electronic device .

10 illustrates a user interface for selecting a high sensitivity mode in an electronic device according to one embodiment.

Referring to FIG. 10, an electronic device 1000 according to one embodiment may display a graphical user interface on the display 1010, which may select an operating mode of the electronic device 1000. For example, the electronic device 1000 may display a graphical user interface for selecting whether to use Wi-Fi, whether to use GPS, whether to output sound, rotate the screen, use Bluetooth, or improve touch sensitivity .

According to one embodiment, the electronic device 1000 can operate the touch panel in a high sensitivity mode when an input is applied to the touch sensitivity setting button 1011. [ For example, when an input is applied to the touch sensitivity setting button 1011, the electronic device 1000 can change the operation mode of the touch panel to a high sensitivity mode and improve the sensitivity of the touch panel. According to one embodiment, the electronic device 1000 can control the display driving IC so that the frequency of the driving signal is reduced when the operation mode of the touch panel is changed. When the operation mode of the touch panel is changed, the electronic device 1000 can change the frequency of the scan signal, the report rate, and / or the touchable area. The electronic device 1000 can improve the sensitivity of the touch panel by adjusting the frequency of the driving signal. In the case where the sensitivity of the touch panel is improved, for example, even if the user touches the electronic device 1000 while wearing gloves in the hand, the electronic device 1000 can secure the touch recognition performance.

11 shows a wireless charger connected to an electronic device and an electronic device according to an embodiment.

Referring to FIG. 11, an electronic device 1101 according to one embodiment may be charged wirelessly. While being wirelessly charged, the electronic device 1101 may be placed over the wireless charger 1102. In this case, the electromagnetic wave generated by the wireless charger 1102 may affect the touch panel of the electronic device 1101. Noises may be generated in the touch panel due to the electromagnetic waves generated by the wireless charger 1102. The magnitude of the noise may be larger when it is wirelessly charged than when it is charged by wire.

According to one embodiment, the electronic device 1101 can control the display driver IC so that when the electronic device 1101 is charged wirelessly, the frequency of the driving signal is reduced. For example, the electronic device 1101 may use the charging IC to determine whether the electronic device 1101 is charged wirelessly. The electronic device 1101 may reduce the frequency of the drive signal while the electronic device 1101 is being charged wirelessly. While the electronic device 1101 is being charged wirelessly, the frequency of the drive signal may be lower than when it is charged by wire. The electronic device 1101 may change the frequency, the report rate, and / or the touchable area of the scan signal while the electronic device 1101 is being charged wirelessly. The electronic device 1101 can improve the SNR of the touch panel by adjusting the frequency of the driving signal. When the SNR of the touch panel is improved, for example, while the electronic device 1101 is charged wirelessly, the electronic device 1101 can secure the touch recognition performance.

A display panel exposed through a front surface of the electronic device; a touch panel disposed in parallel with the display panel; a touch panel disposed in parallel with the display panel; A touch IC for driving the touch panel, a display driver IC for driving the display panel, and a sensor, a touch IC, and a display driving IC. When the sensor detects the approach of one side of the protective cover, And a processor for controlling the display driving IC so that the frequency of the driving signal supplied to the display panel is reduced.

According to one embodiment, the processor can control the display driving IC so that the frequency of the horizontal synchronizing signal supplied to the display panel is reduced when the approach of one side of the protective cover is detected by the sensor.

According to one embodiment, the processor can control the touch IC so that the frequency of the scan signal supplied to the touch panel is increased when the approach of one side of the protective cover is detected by the sensor.

According to one embodiment, the processor can control the touch IC so that the number of pulses of the scan signal included in the designated time period is increased.

According to one embodiment, the processor can control the touch IC so that when the approach of one side of the protective cover is detected by the sensor, the report rate of the touch IC to the processor is reduced.

According to one embodiment, the processor can control the touch IC so that, when the approach of one side of the protective cover is detected by the sensor, the area where the touch input is sensed by the touch panel is reduced.

According to one embodiment, the processor can control the touch IC so that the area where the touch input is sensed is set to the center of the touch panel.

According to one embodiment, the processor may display a graphical user interface on a portion of the display panel that is determined based on information about the protective cover, when the proximity of one side of the protective cover is sensed by the sensor.

According to one embodiment, the processor can obtain the identification information of the protective cover from the protective cover, and control the display driving IC so that the frequency of the driving signal is reduced based on the identification information.

According to one embodiment, the processor can obtain information on the thickness of the protective cover from the protective cover, and control the display drive IC so that the frequency of the driving signal is reduced based on information about the thickness.

According to one embodiment, the electronic device further comprises a charger IC electrically connected to the processor and capable of recognizing whether the electronic device is charged wirelessly, and wherein the processor, when the electronic device is charged wirelessly, The display driving IC can be controlled so that the frequency of the driving signal is reduced.

According to one embodiment, the processor can control the display drive IC so that the frequency of the drive signal is reduced when the operation mode of the touch panel is changed.

According to one embodiment, the processor may control the touch IC to scan the touch input when the magnitude of the noise generated by the display panel or the display driver IC is less than a specified value.

According to one embodiment, the electronic device further comprises an NFC antenna electrically connected to the processor, wherein the processor obtains information about the protective cover from the protective cover using an NFC antenna, and based on the information about the protective cover, It is possible to control the display driving IC so that the frequency of the display driving IC is reduced.

According to one embodiment, the processor can control the display drive IC so that the frequency of the drive signal is reduced when one side of the protective cover contacts the front surface of the electronic device.

A method of controlling a touch screen display of an electronic device according to an exemplary embodiment includes the steps of detecting an approach of one side of a protective cover mounted on an electronic device with respect to a front side of the electronic device, And reducing the frequency of the driving signal supplied to the display panel.

According to one embodiment, the operation of reducing the frequency of the driving signal may include an operation of changing the frequency of the horizontal synchronizing signal supplied to the display panel when the approach of one side of the protective cover is detected.

According to one embodiment, the method may further include, when the approach of one side of the protective cover is sensed, increasing the frequency of the scan signal supplied to the touch panel included in the electronic device.

According to one embodiment, the method may further include, when an approach of one side of the protective cover is sensed, reducing the report rate of the touch IC included in the electronic device.

A computer storage medium according to one embodiment is stored on a computer-readable medium, which is executed by at least one processor included in an electronic device and which stores computer-readable instructions, When the operation of sensing the approach and the approach of the one side of the protective cover are detected, the operation of reducing the frequency of the driving signal supplied to the display panel included in the electronic device can be set.

As used in this document, the term "module" may refer to a unit comprising, for example, one or a combination of two or more of hardware, software or firmware. A "module" may be interchangeably used with terms such as, for example, unit, logic, logical block, component, or circuit. A "module" may be a minimum unit or a portion of an integrally constructed component. A "module" may be a minimum unit or a portion thereof that performs one or more functions. "Modules" may be implemented either mechanically or electronically. For example, a "module" may be an application-specific integrated circuit (ASIC) chip, field-programmable gate arrays (FPGAs) or programmable-logic devices And may include at least one.

At least a portion of a device (e.g., modules or functions thereof) or a method (e.g., operations) according to various embodiments may include, for example, computer-readable storage media in the form of program modules, As shown in FIG. When the instruction is executed by a processor (e.g., processor 120), the one or more processors may perform a function corresponding to the instruction. The computer readable storage medium may be, for example, memory 130. [

The computer-readable recording medium may be a hard disk, a floppy disk, a magnetic media such as a magnetic tape, an optical media such as a CD-ROM, a DVD (Digital Versatile Disc) May include magneto-optical media (e.g., a floppy disk), a hardware device (e.g., ROM, RAM, or flash memory, etc.) Etc. The hardware devices described above may be configured to operate as one or more software modules to perform the operations of the various embodiments. And vice versa.

Modules or program modules according to various embodiments may include at least one or more of the elements described above, some of which may be omitted, or may further include additional other elements. Operations performed by modules, program modules, or other components in accordance with various embodiments may be performed in a sequential, parallel, iterative, or heuristic manner. Also, some operations may be performed in a different order, omitted, or other operations may be added.

And the embodiments disclosed in this document are provided for the explanation and understanding of the disclosed technical contents, and do not limit the scope of the present invention. Accordingly, the scope of this document should be interpreted to include all modifications based on the technical idea of the present invention or various other embodiments.

Claims (20)

In an electronic device,
A sensor for sensing an approach of one side of a protective cover mounted on the electronic device to the front of the electronic device;
A display panel exposed through a front surface of the electronic device;
A touch panel disposed in parallel with the display panel;
A touch IC for driving the touch panel;
A display driver IC for driving the display panel; And
The display driver IC is electrically connected to the sensor, the touch IC, and the display driver IC so that the frequency of the driving signal supplied to the display panel is reduced when the sensor detects the approach of one side of the protective cover. And a processor for controlling the processor. The method according to claim 1,
The processor comprising:
And controls the display driving IC so that a frequency of a horizontal synchronizing signal supplied to the display panel is reduced when an approach of one side of the protective cover is detected by the sensor. The method according to claim 1,
The processor comprising:
And controls the touch IC so that a frequency of a scan signal supplied to the touch panel is increased when an approach of one side of the protective cover is detected by the sensor. The method of claim 3,
The processor comprising:
And controls the touch IC so that the number of pulses of the scan signal included in the designated time period is increased. The method according to claim 1,
The processor comprising:
And controls the touch IC so that the report rate of the touch IC to the processor is reduced when an approach of one side of the protective cover is detected by the sensor. The method according to claim 1,
The processor comprising:
And controls the touch IC so that an area where a touch input is sensed by the touch panel is reduced when an approach of one side of the protective cover is detected by the sensor. The method according to claim 6,
The processor comprising:
And controls the touch IC so that an area where the touch input is sensed is set to a central portion of the touch panel. The method according to claim 1,
The processor comprising:
And displays a graphical user interface on a portion of the display panel determined based on information about the protective cover when an approach of one side of the protective cover is detected by the sensor. The method according to claim 1,
The processor comprising:
Obtaining identification information of the protective cover from the protective cover,
And controls the display drive IC so that the frequency of the drive signal is reduced based on the identification information. The method according to claim 1,
The processor comprising:
Obtaining information on the thickness of the protective cover from the protective cover,
And controls the display drive IC so that the frequency of the drive signal is reduced based on the information on the thickness. The method according to claim 1,
Further comprising a charger IC electrically connected to the processor and capable of recognizing whether the electronic device is charged wirelessly,
The processor comprising:
And controls the display drive IC so that the frequency of the drive signal is reduced when the electronic device is charged wirelessly. The method according to claim 1,
The processor comprising:
And controls the display drive IC so that the frequency of the drive signal is reduced when the operation mode of the touch panel is changed. The method according to claim 1,
The processor comprising:
And controls the touch IC to scan the touch input when a magnitude of noise generated by the display panel or the display drive IC is lower than a specified value. The method according to claim 1,
Further comprising an NFC antenna electrically connected to the processor,
The processor comprising:
Acquiring information on the protective cover from the protective cover using the NFC antenna,
And controls the display drive IC so that the frequency of the drive signal is reduced based on information on the protective cover. The method according to claim 1,
The processor comprising:
And controls the display drive IC so that the frequency of the drive signal is reduced when one surface of the protective cover contacts the front surface of the electronic device. A method of controlling a touch screen display of an electronic device,
Sensing an approach of one side of the protective cover mounted to the electronic device to the front of the electronic device; And
And reducing the frequency of a drive signal supplied to a display panel included in the electronic device when an approach of one side of the protective cover is sensed. 17. The method of claim 16,
The operation of decreasing the frequency of the driving signal may be performed,
And changing the frequency of the horizontal synchronization signal supplied to the display panel when an approach of one side of the protective cover is detected. 17. The method of claim 16,
Further comprising increasing the frequency of the scan signal supplied to the touch panel included in the electronic device when an approach of one side of the protective cover is sensed. 17. The method of claim 16,
Further comprising reducing the report rate of the touch IC included in the electronic device when an approach of one side of the protective cover is sensed. A computer-readable medium having stored thereon computer-readable instructions executed by at least one processor included in an electronic device,
Wherein the command comprises:
Sensing an approach of one side of the protective cover mounted to the electronic device to the front of the electronic device; And
And to reduce the frequency of the driving signal supplied to the display panel included in the electronic device when the approach of the one side of the protective cover is detected.

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