Electronic device, accessory device for use with electronic device, and method of accessory device

Abstract

An accessory device according to one embodiment comprises: a receiving body for receiving an electronic device; an antenna for NFC; an NFC circuit; a wireless charging coil; a display; and a switch circuit. The switch circuit is configured to provide a first state in which the wireless charging coil and the display are electrically separated from each other or a second state in which the wireless charging coil and the display are electrically connected to each other.

Description

Electronic devices, accessory devices for use with electronic devices, and methods of using the accessory devices

[0001] The present disclosure relates to an electronic device and an accessory device for use with the electronic device.

[0002] An accessory device may be used to carry or protect an electronic device (or portable electronic device). For example, the accessory device may include a compartment or receptacle for storing the electronic device.

[0003] The accessory device may include an electrophoretic display (EPD). The electrophoretic display may be configured to display a screen by means of charged particles that are moved by an electric field.

[0004] The above information may be provided as background art to aid in understanding the present disclosure. No claim or determination is made as to whether any of the above is applicable as prior art in connection with the present disclosure.

[0005] An accessory device for use with an electronic device is provided. The accessory device may include a receiver for receiving the electronic device. The accessory device may include an antenna for near field communication (NFC) disposed within the receiver. The accessory device may include an NFC circuit disposed within the receiver and electrically connected to the antenna. The accessory device may include a wireless charging coil disposed within the receiver and configured to receive power transmitted from the electronic device. The accessory device may include a display disposed on the receiver and including a panel configured to display a first screen independently of the provision of the power, and a display driver integrated circuit (DDI) configured to control the panel based on the data for changing the screen displayed through the display to the second screen. The accessory device may include a switch circuit used as a path for providing power provided from the wireless charging coil to the display, and selectively electrically connected to the NFC circuit. The switch circuit may be configured to provide a first state in which the switch circuit electrically separates the wireless charging coil and the display or a second state in which the switch circuit electrically connects the wireless charging coil and the display.

[0006] A method is provided for use by an accessory device for use with an electronic device. The method may include receiving a trigger signal from the electronic device for changing a screen displayed on a display of the accessory device. The method may include changing, based on receiving the trigger signal, a state of a switch circuit of the accessory device from a first state in which the switch circuit electrically separates a wireless charging coil of the accessory device from the display to a second state in which the switch circuit electrically connects the wireless charging coil and the display. The method may include receiving, from the electronic device, data for changing a screen displayed on the display while the switch circuit is controlled to the second state. The method may include changing, based on the data, the first screen to the second screen using power transmitted from the electronic device while the switch circuit is controlled to the second state.

[0007] An electronic device is provided. The electronic device may include an NFC (near field communication) antenna module including an NFC antenna and an NFC circuit. The electronic device may include a wireless charging coil configured to transmit or receive power. The electronic device may include at least one processor including a processing circuit. The electronic device may include a memory storing instructions. The instructions, when individually or collectively executed by the at least one processor, may cause the electronic device to select an image to be displayed through an E-ink display of an accessory device. The instructions, when individually or collectively executed by the at least one processor, may cause the electronic device to receive an input for displaying the image through the E-ink display of the accessory device. The instructions, when individually or collectively executed by the at least one processor, may cause the electronic device to transmit, through the antenna module, a control signal to the accessory device for connecting the wireless charging coil and the wireless charging circuit of the accessory device based on receiving the input. The instructions, when individually or collectively executed by the at least one processor, may cause the electronic device to receive, from the accessory device, response information indicating a connected state of the wireless charging coil and the wireless charging circuit of the accessory device.The instructions, when individually or collectively executed by the at least one processor, may cause the electronic device to transmit, through the antenna module, the image data to be displayed through the E-ink display of the accessory device to the accessory device based on receiving the response information. The instructions, when individually or collectively executed by the at least one processor, may cause the electronic device to refrain from performing a designated operation after transmitting the image data.

[0008] FIG. 1 is a block diagram of an electronic device within a network environment according to one embodiment.

[0009] FIG. 2 illustrates an electronic device and an accessory device according to one embodiment.

[0010] FIGS. 3A and 3B illustrate the operation of a display of an accessory device according to one embodiment.

[0011] FIG. 4A is a block diagram of an accessory device according to one embodiment.

[0012] FIG. 4b is a block diagram of an electronic device according to one embodiment.

[0013] FIG. 5A is a flow chart illustrating operations of an electronic device and an accessory device for changing a screen, according to one embodiment.

[0014] FIG. 5b illustrates an accessory device according to one embodiment.

[0015] FIG. 6 is a flowchart illustrating the operation of an electronic device and an accessory device after a screen change, according to one embodiment.

[0016] FIG. 7A is a flowchart illustrating the operation of an electronic device according to one embodiment when a user input is received while executing a specified operation.

[0017] FIG. 7B illustrates examples of an electronic device according to one embodiment providing a notification to guide the discontinuation of a specified operation.

[0018] FIG. 8 illustrates an accessory device according to one embodiment, including a shielding sheet.

[0019] FIG. 1 is a block diagram of an electronic device within a network environment, according to one embodiment.

[0020] Referring to FIG. 1, in a network environment (100), an electronic device (101) may communicate with an electronic device (102) via a first network (198) (e.g., a short-range wireless communication network), or may communicate with an electronic device (104) or a server (108) via a second network (199) (e.g., a long-range wireless communication network). In one embodiment, the electronic device (101) may communicate with the electronic device (104) via the server (108). According to one embodiment, the electronic device (101) may include a processor (120), a memory (130), an input module (150), an audio output module (155), a display module (160), an audio module (170), a sensor module (176), an interface (177), a connection terminal (178), a haptic module (179), a camera module (180), a power management module (188), a battery (189), a communication module (190), a subscriber identification module (196), or an antenna module (197). In some embodiments, the electronic device (101) may omit at least one of these components (e.g., the connection terminal (178)), or may have one or more other components added. In some embodiments, some of these components (e.g., the sensor module (176), the camera module (180), or the antenna module (197)) may be integrated into one component (e.g., the display module (160)).

[0021] The processor (120) may, for example, execute software (e.g., a program (140)) to control at least one other component (e.g., a hardware or software component) of the electronic device (101) connected to the processor (120) and perform various data processing or operations. According to one embodiment, as at least a part of the data processing or operations, the processor (120) may store commands or data received from other components (e.g., a sensor module (176) or a communication module (190)) in a volatile memory (132), process the commands or data stored in the volatile memory (132), and store result data in a non-volatile memory (134). According to one embodiment, the processor (120) may include a main processor (121) (e.g., a central processing unit or an application processor) or an auxiliary processor (123) (e.g., a graphics processing unit, a neural processing unit (NPU), an image signal processor, a sensor hub processor, or a communication processor) that can operate independently or together with the main processor (121). For example, when the electronic device (101) includes the main processor (121) and the auxiliary processor (123), the auxiliary processor (123) may be configured to use less power than the main processor (121) or to be specialized for a given function. The auxiliary processor (123) may be implemented separately from the main processor (121) or as a part thereof.

[0022] The auxiliary processor (123) may control at least a portion of functions or states associated with at least one component (e.g., a display module (160), a sensor module (176), or a communication module (190)) of the electronic device (101), for example, on behalf of the main processor (121) while the main processor (121) is in an inactive (e.g., sleep) state, or together with the main processor (121) while the main processor (121) is in an active (e.g., application execution) state. In one embodiment, the auxiliary processor (123) (e.g., an image signal processor or a communication processor) may be implemented as a part of another functionally related component (e.g., a camera module (180) or a communication module (190)). In one embodiment, the auxiliary processor (123) (e.g., a neural network processing unit) may include a hardware structure specialized for processing artificial intelligence models. The artificial intelligence models may be generated through machine learning. This learning can be performed, for example, in the electronic device (101) itself where artificial intelligence is performed, or can be performed through a separate server (e.g., server (108)). The learning algorithm can include, for example, supervised learning, unsupervised learning, semi-supervised learning, or reinforcement learning, but is not limited to the examples described above. The artificial intelligence model can include multiple artificial neural network layers.The artificial neural network may be one of a deep neural network (DNN), a convolutional neural network (CNN), a recurrent neural network (RNN), a restricted Boltzmann machine (RBM), a deep belief network (DBN), a bidirectional recurrent deep neural network (BRDNN), a deep Q-network, or a combination of two or more of the above, but is not limited to the examples described above. In addition to, or alternatively to, a hardware structure, an artificial intelligence model may include a software structure.

[0023] The memory (130) can store various data used by at least one component (e.g., processor (120) or sensor module (176)) of the electronic device (101). The data can include, for example, software (e.g., program (140)) and input data or output data for commands related thereto. The memory (130) can include volatile memory (132) or non-volatile memory (134).

[0024] The program (140) may be stored as software in the memory (130) and may include, for example, an operating system (142), middleware (144), or an application (146).

[0025] The input module (150) can receive commands or data to be used in a component of the electronic device (101) (e.g., a processor (120)) from an external source (e.g., a user) of the electronic device (101). The input module (150) can include, for example, a microphone, a mouse, a keyboard, a key (e.g., a button), or a digital pen (e.g., a stylus pen).

[0026] The audio output module (155) can output audio signals to the outside of the electronic device (101). The audio output module (155) can include, for example, a speaker or a receiver. The speaker can be used for general purposes, such as multimedia playback or recording playback. The receiver can be used to receive incoming calls. In one embodiment, the receiver can be implemented separately from the speaker or as part of the speaker.

[0027] The display module (160) can visually provide information to an external party (e.g., a user) of the electronic device (101). The display module (160) may include, for example, a display, a holographic device, or a projector and a control circuit for controlling the device. In one embodiment, the display module (160) may include a touch sensor configured to detect a touch, or a pressure sensor configured to measure the intensity of a force generated by the touch.

[0028] The audio module (170) can convert sound into an electrical signal, or vice versa, convert an electrical signal into sound. According to one embodiment, the audio module (170) can acquire sound through the input module (150), output sound through the sound output module (155), or an external electronic device (e.g., electronic device (102)) (e.g., speaker or headphone) directly or wirelessly connected to the electronic device (101).

[0029] The sensor module (176) can detect the operating status (e.g., power or temperature) of the electronic device (101) or the external environmental status (e.g., user status) and generate an electrical signal or data value corresponding to the detected status. According to one embodiment, the sensor module (176) can include, for example, a gesture sensor, a gyro sensor, a barometric pressure sensor, a magnetic sensor, an acceleration sensor, a grip sensor, a proximity sensor, a color sensor, an IR (infrared) sensor, a biometric sensor, a temperature sensor, a humidity sensor, or an illuminance sensor.

[0030] The interface (177) may support one or more designated protocols that may be used to directly or wirelessly connect the electronic device (101) to an external electronic device (e.g., the electronic device (102)). In one embodiment, the interface (177) may include, for example, a high definition multimedia interface (HDMI), a universal serial bus (USB) interface, an SD card interface, or an audio interface.

[0031] The connection terminal (178) may include a connector through which the electronic device (101) may be physically connected to an external electronic device (e.g., electronic device (102)). According to one embodiment, the connection terminal (178) may include, for example, an HDMI connector, a USB connector, an SD card connector, or an audio connector (e.g., a headphone connector).

[0032] The haptic module (179) can convert electrical signals into mechanical stimuli (e.g., vibration or movement) or electrical stimuli that a user can perceive through tactile or kinesthetic sensations. According to one embodiment, the haptic module (179) can include, for example, a motor, a piezoelectric element, or an electrical stimulation device.

[0033] The camera module (180) can capture still images and videos. According to one embodiment, the camera module (180) may include one or more lenses, image sensors, image signal processors, or flashes.

[0034] The power management module (188) can manage the power supplied to the electronic device (101). According to one embodiment, the power management module (188) can be implemented as, for example, at least a part of a power management integrated circuit (PMIC).

[0035] A battery (189) may power at least one component of the electronic device (101). In one embodiment, the battery (189) may include, for example, a non-rechargeable primary battery, a rechargeable secondary battery, or a fuel cell.

[0036] The communication module (190) may support the establishment of a direct (e.g., wired) communication channel or a wireless communication channel between the electronic device (101) and an external electronic device (e.g., electronic device (102), electronic device (104), or server (108)), and the performance of communication through the established communication channel. The communication module (190) may operate independently from the processor (120) (e.g., application processor) and may include one or more communication processors that support direct (e.g., wired) communication or wireless communication. According to one embodiment, the communication module (190) may include a wireless communication module (192) (e.g., a cellular communication module, a short-range wireless communication module, or a global navigation satellite system (GNSS) communication module) or a wired communication module (194) (e.g., a local area network (LAN) communication module, or a power line communication module). Among these communication modules, the corresponding communication module can communicate with an external electronic device (104) via a first network (198) (e.g., a short-range communication network such as Bluetooth, wireless fidelity (WiFi) direct, or infrared data association (IrDA)) or a second network (199) (e.g., a long-range communication network such as a legacy cellular network, a 5G network, a next-generation communication network, the Internet, or a computer network (e.g., a LAN or WAN)). These various types of communication modules can be integrated into a single component (e.g., a single chip) or implemented as multiple separate components (e.g., multiple chips). The wireless communication module (192) can verify or authenticate the electronic device (101) within a communication network such as the first network (198) or the second network (199) by using subscriber information (e.g., an international mobile subscriber identity (IMSI)) stored in the subscriber identification module (196).

[0037] The wireless communication module (192) can support 5G networks and next-generation communication technologies following the 4G network, such as NR access technology (new radio access technology). The NR access technology can support high-speed transmission of high-capacity data (eMBB (enhanced mobile broadband)), minimization of terminal power and connection of multiple terminals (mMTC (massive machine type communications)), or high reliability and low latency (URLLC (ultra-reliable and low-latency communications)). The wireless communication module (192) can support, for example, a high-frequency band (e.g., mmWave band) to achieve a high data transmission rate. The wireless communication module (192) can support various technologies for securing performance in a high-frequency band, such as beamforming, massive multiple-input and multiple-output (MIMO), full dimensional MIMO (FD-MIMO), array antenna, analog beam-forming, or large scale antenna. The wireless communication module (192) can support various requirements specified in the electronic device (101), an external electronic device (e.g., the electronic device (104)), or a network system (e.g., the second network (199)). According to one embodiment, the wireless communication module (192) can support a peak data rate (e.g., 20 Gbps or more) for eMBB realization, a loss coverage (e.g., 164 dB or less) for mMTC realization, or a U-plane latency (e.g., 0.5 ms or less for downlink (DL) and uplink (UL), or 1 ms or less for round trip) for URLLC realization.

[0038] The antenna module (197) can transmit or receive signals or power to or from an external device (e.g., an external electronic device). In one embodiment, the antenna module (197) may include an antenna including a radiator formed of a conductor or a conductive pattern formed on a substrate (e.g., a PCB). In one embodiment, the antenna module (197) may include a plurality of antennas (e.g., an array antenna). In this case, at least one antenna suitable for a communication method used in a communication network, such as the first network (198) or the second network (199), may be selected from the plurality of antennas by, for example, the communication module (190). A signal or power may be transmitted or received between the communication module (190) and an external electronic device through the selected at least one antenna. In some embodiments, in addition to the radiator, another component (e.g., a radio frequency integrated circuit (RFIC)) may be additionally formed as a part of the antenna module (197).

[0039] In one embodiment, the antenna module (197) may form a mmWave antenna module. In one embodiment, the mmWave antenna module may include a printed circuit board, an RFIC disposed on or adjacent a first side (e.g., a bottom side) of the printed circuit board and capable of supporting a designated high frequency band (e.g., a mmWave band), and a plurality of antennas (e.g., an array antenna) disposed on or adjacent a second side (e.g., a top side or a side side) of the printed circuit board and capable of transmitting or receiving signals in the designated high frequency band.

[0040] At least some of the above components can be interconnected and exchange signals (e.g., commands or data) with each other via a communication method between peripheral devices (e.g., a bus, GPIO (general purpose input and output), SPI (serial peripheral interface), or MIPI (mobile industry processor interface)).

[0041] According to one embodiment, commands or data may be transmitted or received between the electronic device (101) and an external electronic device (104) via a server (108) connected to a second network (199). Each of the external electronic devices (102 or 104) may be the same or a different type of device as the electronic device (101). According to one embodiment, all or part of the operations executed in the electronic device (101) may be executed in one or more of the external electronic devices (102, 104, or 108). For example, when the electronic device (101) is to perform a certain function or service automatically or in response to a request from a user or another device, the electronic device (101) may, instead of or in addition to executing the function or service itself, request one or more external electronic devices to perform the function or at least part of the service. One or more external electronic devices that receive the request may execute at least a portion of the requested function or service, or an additional function or service related to the request, and transmit the result of the execution to the electronic device (101). The electronic device (101) may process the result as is or additionally and provide it as at least a portion of a response to the request. For this purpose, cloud computing, distributed computing, mobile edge computing (MEC), or client-server computing technology may be used, for example. The electronic device (101) may provide an ultra-low latency service by using distributed computing or mobile edge computing, for example. In another embodiment, the external electronic device (104) may include an Internet of Things (IoT) device. The server (108) may be an intelligent server utilizing machine learning and / or a neural network. According to one embodiment, the external electronic device (104) or the server (108) may be included in the second network (199).The electronic device (101) can be applied to intelligent services (e.g., smart home, smart city, smart car, or healthcare) based on 5G communication technology and IoT-related technology.

[0042] FIG. 2 illustrates an electronic device and an accessory device according to one embodiment.

[0043] Referring to FIG. 2, the accessory device (400) can be used together with the electronic device (101).

[0044] In one embodiment, the accessory device (400) may include a receptacle (230). The receptacle (230) may include a plate (231) and side walls (232) that form a space for receiving the electronic device (101). The plate (231) may form a bottom of the receptacle (230). The side walls (232) may extend from the plate (231). The receptacle (230) may define an internal volume having a size and shape that receives the electronic device (101). The electronic device (101) may be coupled to the internal volume of the receptacle (230). For example, the electronic device (101) may be coupled in an interference fit or tight fit manner to the internal volume having the size and shape of the electronic device (101). The accessory device (400) can hold or carry an electronic device (101) placed within the receptor (230).

[0045] In one embodiment, when the electronic device (101) is coupled to the accessory device (400), the accessory device (400) may enclose a portion of an exterior surface of the electronic device (101). For example, the side walls (232) may enclose at least a portion of a side surface (212) of the electronic device (101), and the plate (231) may enclose at least a portion of a back surface (211) of the electronic device (101). The accessory device (400) may protect the electronic device (101) by partially enclosing the exterior surface of the electronic device (101).

[0046] According to one embodiment, the accessory device (400) may include one or more openings (221) positioned within a location corresponding to one or more cameras (213) of the electronic device (101). When the electronic device (101) and the accessory device (400) are coupled, the one or more cameras (213) of the electronic device (101) may be aligned with the one or more openings (221). The one or more cameras (213) may collect light reflected from a subject through the openings.

[0047] According to one embodiment, the accessory device (400) may include at least one first opening (e.g., first opening (222-1) and second opening (222-2)) formed in a position corresponding to at least one hole (e.g., first hole (214-1) and second hole (214-2)) for at least one speaker (e.g., first speaker (721) and second speaker (722) of FIG. 7B) of the electronic device (101) and a second opening (223) formed in a position corresponding to a connector hole (215) of the electronic device (101). When the electronic device (101) and the accessory device (400) are coupled, at least one hole (214) of the electronic device (101) can be aligned with at least one first opening (222), and the connector hole (215) of the electronic device (101) can be aligned with the second opening (223).

[0048] According to one embodiment, the accessory device (400) may include a display (415). The display (415) may be disposed on the rear surface of the plate (231). For example, the front surface of the plate (231) may face the rear surface (211) of the electronic device (101), and the rear surface of the plate (231), which is opposite to the front surface of the plate (231), may be exposed to the outside. The display (415) may be visible from the outside by being disposed on the rear surface of the plate (231) that is exposed to the outside.

[0049] According to one embodiment, the display (415) may be configured to display a screen. Since the screen can be viewed from the outside, users of the electronic device (101) and the accessory device (400) may select a screen to express their individuality. For example, the screen displayed through the display (415) of the accessory device (400) may be changed based on data provided from the electronic device (101). The electronic device (101) may transmit data for changing the screen, stored in the memory (422), to the accessory device (400). The accessory device (400) may receive the data from the electronic device (101) and change the screen displayed through the display (415) based on the data.

[0050] In one embodiment, the display (415) may include an electrophoretic display (EPD) (e.g., the electrophoretic display (300) of FIGS. 3A and 3B) that requires low power consumption. The electrophoretic display (300) may be referred to as a display that uses reflected light to display images, thereby consuming power when changing screens and consuming substantially no power to maintain the display of a screen that includes a still image. The electrophoretic display (300) may be referred to as an electronic ink display (E-ink display) or electronic paper.

[0051] FIGS. 3A and 3B illustrate the operation of a display of an accessory device according to one embodiment.

[0052] According to one embodiment, the display (e.g., the display (415) of FIG. 2) may be referred to as a reflective display capable of displaying a screen using reflected light. In the following description, the display (415) is described as an electrophoretic display (300) that displays a screen according to an electrophoretic method, but the driving method of the display (415) is not limited thereto. For example, the display (415) may also display a screen according to a particle rotation method or a dry movement method.

[0053] Referring to FIGS. 3A and 3B, a display (e.g., an electrophoretic display (300)) according to one embodiment may include a first layer (310), a second layer (320), and a third layer (330). The first layer (310) may be disposed on the back surface of the plate (231), and the second layer (320) may be exposed to the outside of the plate (231). The third layer (330) may be disposed between the first layer (310) and the second layer (320). The electrophoretic display (300) may include a protective film (340) for protecting the second layer (320) exposed to the outside. The protective film (340) may be attached to the second layer (320).

[0054] According to one embodiment, the first layer (310) may include at least one electrode (311) for driving the electrophoretic display (300). The first layer (310) may be electrically connected to a power management integrated circuitry (PMIC) (417) configured to transmit power to the at least one electrode (311). For example, the first layer (310) may include electrical wiring that provides an electrical connection between the power management circuit (417) and the at least one electrode (311).

[0055] In one embodiment, the second layer (320) may form an outer layer that is visible from the outside. The second layer (320) may be substantially transparent. For example, the second layer (320) may include a non-conductive material. For example, the second layer (320) may include polyethylene terephthalate (PET), polyethylene naphthalate (PEN), and / or polycarbonate (PC).

[0056] For example, the third layer (330) may include a plurality of microcapsules (321). The plurality of microcapsules (321) may be fixed by a binder. The plurality of microcapsules (321) may include a plurality of charged particles (322) and a fluid (e.g., a dispersant). The plurality of particles (322) may be dispersed so as to be flowable within the fluid. The plurality of charged particles (322) may have a color. For example, each of the plurality of charged particles (322) may include a pigment having a color. According to one embodiment, the plurality of particles (322) may include positively charged first particles (322a) and negatively charged second particles (322b). The first particle (322a) may have a first color (e.g., black), and the second particle (322b) may have a second color (e.g., white) different from the first color, but is not limited thereto.

[0057] According to one embodiment, the electrophoretic display (300) may be configured to display a screen based on the application of power to at least one electrode (311) of the first layer (310). For example, when voltage is applied to at least one electrode (311) included in the first layer (310), an electric field may be formed based on a potential difference between the first layer (310) and the second layer (320). A screen that can be viewed from the outside may be displayed as a plurality of charged particles (322) included in a plurality of microcapsules (321) move due to the electric field. The first particles (322a) and the second particles (322b) charged with different polarities may move in different directions depending on the direction of the electric field. Since the particles moving toward the second layer (320) can be recognized through the substantially transparent second layer (320), the color of the particles moving toward the second layer (320) can be recognized from the outside.

[0058] For example, as illustrated in FIG. 3A, based on the formation of an electric field directed in a first direction (e.g., +z direction), a positively charged first particle (322a) may move in the first direction, and a negatively charged second particle (322b) may move in a second direction (e.g., -z direction) opposite to the first direction. As the first particles (322a) and the second particles (322b) having different colors move in different directions, a screen may be displayed on the electrophoretic display (300). For example, as the first particles (322a) move in the first direction, a first color may be recognized externally.

[0059] For example, as illustrated in FIG. 3b, based on the formation of an electric field directed in a second direction (e.g., -z direction), a positively charged first particle (322a) may move in the second direction, and a negatively charged second particle (322b) may move in the first direction (e.g., +z direction). As the first particles (322a) and the second particles (322b) having different colors move in different directions, a screen may be displayed on the electrophoretic display (300). For example, as the first particles (322a) move in the first direction, a first color may be recognized from the outside.

[0060] Even if the power transmission is interrupted within the state illustrated in FIG. 3A or 3B, the electrophoretic display (300) can maintain the state illustrated in FIG. 3A or 3B. The electrophoretic display (300) can have bistability by maintaining the state before the electric field is removed even after the electric field is removed. By maintaining the state, the electrophoretic display (300) can be configured to display a screen including a still image without continuous power consumption. When the screen displayed through the electrophoretic display (300) changes, power is consumed to cause the reorientation of the plurality of particles (322), and substantially no power may be consumed to maintain the display of the screen. Since the electrophoretic display (300) displaying the screen through the capsule may not include a backlight, the display (e.g., the display (415) of FIG. 2) can have a thin thickness and flexibility.

[0061] FIG. 4A is a block diagram of an accessory device according to one embodiment. FIG. 4B is a block diagram of an electronic device according to one embodiment.

[0062] The components illustrated in FIG. 4a may be embedded in the plate (231) of the accessory device (400) or placed on a plate (e.g., the plate (231) of FIG. 2).

[0063] Referring to FIG. 4A, an accessory device (400) according to one embodiment may include components for wireless communication. For example, the accessory device (400) may include an antenna (411) and an NFC circuit (412) for near field communication (NFC), which are disposed within a plate (231). The antenna (411) and the NFC circuit (412) may be referred to as an antenna module. The accessory device (400) may receive data for changing a screen displayed on a display (415) through the antenna (411). The antenna (411) may include a coil formed with a conductive pattern for receiving data. The NFC circuit (412) may be electrically connected to the antenna (411). The NFC circuit (412) may receive data transmitted from the electronic device (101) through the antenna (411).

[0064] According to one embodiment, the accessory device (400) may include components for wireless charging. For example, the accessory device (400) may include a wireless charging coil (413) and a wireless charging circuit (414) disposed within the plate (231). The wireless charging circuit (414) may receive power transmitted from the electronic device (101) through the wireless charging coil (413). The wireless charging circuit (414) may provide the power received through the wireless charging coil (413) to the power management circuit (417).

[0065] According to one embodiment, the accessory device (400) may include a power management circuit (417). The power management circuit (417) may convert power transmitted from the electronic device (101) into direct current (DC) power and provide it to components of the accessory device (400). For example, the power management circuit (417) may be configured to provide power provided from the wireless charging circuit (414) to the display (415).

[0066] According to one embodiment, the display (415) may include a display driver integrated circuitry (DDI) (415a) and a panel (415b). The display (415) may be referred to as an electrophoretic display (300). The panel (415b) may include the first layer, the second layer, and the third layer of FIGS. 3A and 3B, which are configured to display a screen. The display driver circuit (415a) may be configured to control the panel (415b). For example, the display driver circuit (415a) may control a screen displayed through the panel (415b) by applying power to at least one electrode (e.g., the electrode (311) of FIGS. 3A and 3B) corresponding to at least some of the plurality of microcapsules (321) of FIGS. 3A and 3B. As described above, the panel (415b) may be configured to display a screen independently of the power supply. Displaying a screen independently of the power supply means that the panel (415b) does not substantially consume power to display a screen including a still image.

[0067] According to one embodiment, the accessory device (400) may include a control circuit (418). The control circuit (418) may include a microcontroller unit (MCU) that implements a microprocessor and an input / output module in a single chip. The control circuit (418) may be disposed between the NFC circuit (412) and the display driver circuit (415a). The control circuit (418) may receive data for changing the screen of the display (415) from the NFC circuit (412). The control circuit (418) may change the received data into data readable by the display driver circuit (415a). The control circuit (418) may provide the changed data to the display driver circuit (415a).

[0068] Referring to FIG. 4B, an electronic device (101) according to one embodiment may include at least one processor (421) (e.g., the processor (120) of FIG. 1), a memory (422) (e.g., the memory (130) of FIG. 1), an antenna (423) (e.g., the antenna module (197) of FIG. 1), an NFC circuit (424) (e.g., the wireless communication module (192) of FIG. 1), a wireless charging coil (425), and a wireless charging circuit (426). The antenna (423) and the NFC circuit (424) may be used to transmit data to an accessory device (e.g., the accessory device (400) of FIG. 4A) for changing a screen displayed through a display (e.g., the display (415)) of the accessory device (400).

[0069] According to one embodiment, the memory (422) may include one or more storage media for storing instructions. Any function or operation described herein may be processed by at least one processor (421). The at least one processor (421) may include a processing circuit that performs processing. The at least one processor (421) may include, but is not limited to, an application processor (AP, e.g., a central processing unit (CPU)) and / or a communication processor (CP, e.g., a modem). The at least one processor (421) may include, but is not limited to, a graphics processing unit (e.g., a GPU), a neural processing unit (NPU) (e.g., an artificial intelligence (AI) chip), a wireless-fidelity (Wi-Fi) chip, a Bluetooth TMIt may include a chip, a global positioning system (GPS) chip, a near field communication (NFC) chip, connectivity chips, a sensor controller, a touch controller, a finger-print sensor controller, a display drive integrated circuit (DDI), an audio CODEC chip, a universal serial bus (USB) controller, a camera controller, an image processing IC, a microprocessor unit (MPU), a system on chip (SoC), an IC, or a similar circuit. It should be understood that the blocks of each flow chart in the present disclosure and the combination of the flow charts can be performed by one or more computer programs including computer-executable instructions. The one or more computer programs may be entirely stored in a single memory, or the one or more computer programs may be divided into different parts stored in different multiple memories.

[0070] According to one embodiment, the electronic device (101) may perform wireless charging using the wireless charging coil (425) and the wireless charging circuit (426). For example, the electronic device (101) may wirelessly receive power provided from an external charging device using the wireless charging coil (425). The wireless charging circuit (426) may be configured to control the wireless charging operation to prevent overheating and / or overcharging. The wireless charging circuit (426) may support one or more of various wireless charging methods, including a magnetic resonance method or a magnetic induction method. For example, when wireless charging is performed using the magnetic resonance method, the wireless charging circuit (426) may provide a current having a specified frequency to the wireless charging coil (425) to form a magnetic field. The wireless charging circuit (426) may provide power provided from the external charging device to the battery (427). The battery (427) may include a rechargeable secondary battery and may store the power.

[0071] According to one embodiment, the electronic device (101) can transmit power to the accessory device (400) using the wireless charging coil (425) and the wireless charging circuit (426). For example, the electronic device (101) can transmit power required to change a screen displayed through the display (415) of the accessory device (400) to the accessory device (400). The electronic device (101) can transmit power through the wireless charging coil (425), and the accessory device (400) can receive the power through the wireless charging coil (e.g., the wireless charging coil (413) of FIG. 4A). For example, when the display (415) of the accessory device (400) has a size of about 4 inches, power of about 330 mW may be required to change the screen. In the case of a wireless charging method using antennas (411, 423), power can be provided using a frequency of about 13.56 MHz. In the case of a wireless charging method using wireless charging coils (413, 425), since the wireless charging coils (413, 425) have a relatively large size, power can be provided using a frequency in the range of about 100 kHz to about 300 kHz. When wireless charging is performed through antennas (411, 412) using a relatively low frequency, the antennas (411, 412) may include coils having a relatively low inductance. A relatively low inductance may result in a weak magnetic field formed when current is applied, and thus may result in low wireless charging efficiency. When wireless charging is performed through wireless charging coils (413, 425) using a relatively high frequency, the wireless charging coils (413, 425) may include coils having a relatively high inductance. A relatively high inductance may result in a strong magnetic field formed when current is applied, and thus may result in high wireless charging efficiency.According to one embodiment, a wireless charging method using wireless charging coils (413, 425) can provide more power in the same amount of time than a wireless charging method using antennas (411, 423). If power is provided through antennas (e.g., antenna (411) of FIG. 4A and antenna (423) of FIG. 4B), approximately 280 mW of power is provided, which may insufficient power to change the screen.

[0072] When power is provided through the wireless charging coils (413, 425), higher power can be provided than when power is provided through the antennas (411, 423), so that power required for screen change can be provided.

[0073] For example, the electronic device (101) can be charged through a wireless charging device (e.g., a wireless charging pad). The electronic device (101) can receive power provided from the wireless charging device while being placed on the wireless charging device. The power provided from the wireless charging device can be received through the wireless charging coil and stored in the battery (427). According to one embodiment, since the accessory device (400) surrounds a portion of the electronic device (101), when the electronic device (101) is placed on the wireless charging device while being accommodated within the accessory device (400), the wireless charging operation may be interrupted by the accessory device (400).

[0074] When an accessory device (400) is positioned between a wireless charging device and an electronic device (101), the wireless charging coil (413) of the accessory device (400) may interfere with the power supply between the wireless charging device and the wireless charging coil (425) of the electronic device (101). For example, when the electronic device (101) is placed on the wireless charging device, the wireless charging circuit (426) of the electronic device (101) may be activated by a signal transmitted from the wireless charging device and may provide a response signal (information) to the signal. The wireless charging device may start transmitting power based on receiving the response signal (information). If the accessory device (400) is positioned between the electronic device (101) and the wireless charging device, the voltage of the signal transmitted from the wireless charging device may be lowered by the wireless charging coil (413) of the accessory device (400), so that the electronic device (101) may not be able to provide a response signal. Additionally, communication between the accessory device (400) and the electronic device (101) may interfere with communication between the electronic device (101) and the wireless charging device, preventing smooth charging. Furthermore, the wireless charging device may detect the accessory device (400) as a foreign object, resulting in malfunction. Furthermore, the accessory device (400) may prevent smooth wireless charging of the electronic device (101).

[0075] An accessory device (400) according to one embodiment may include a switch circuit (416) to improve the aforementioned aspects. Referring again to FIG. 4A, the accessory device (400) may include a switch circuit (416) connected to a wireless charging coil (413). For example, the switch circuit (416) may be connected between the wireless charging coil (413) and a wireless charging circuit (414). The wireless charging circuit (414) may be electrically connected to the wireless charging coil via the switch circuit (416). The switch circuit (416) may include a first terminal (416a) connected to the wireless charging coil (413) and a second terminal (416b) connected to the wireless charging circuit (414).

[0076] In one embodiment, the switch circuit (416) may be used as a path for providing power from the wireless charging coil to the display (415). In one embodiment, the switch circuit (416) may be electrically connected to an NFC circuit. The NFC circuit may control the switch circuit (416) to a first state or a second state.

[0077] According to one embodiment, the first state of the switch circuit (416) may be referred to as a state in which the first terminal (416a) and the second terminal (416b) are electrically isolated, thereby electrically isolating the wireless charging coil and the display (415). The first state may be an open state of the switch circuit (416). Within the first state, the accessory device (400) may be unable to receive power, and thus the power reception operation may be disabled. The default state of the switch circuit (416) may be the first state.

[0078] According to one embodiment, the second state of the switch circuit (416) may be referred to as a state in which the first terminal (416a) and the second terminal (416b) are electrically connected, thereby electrically connecting the wireless charging coil and the display (415) to the switch circuit (416). The second state may be a closed state of the switch circuit (416). Within the second state, power received from the electronic device (101) through the wireless charging coil may be provided to the switch circuit (416), the wireless charging circuit, and the power management circuit (417), and then provided to the display (415) through the power management circuit (417). Within the second state, the accessory device (400) may be capable of receiving power, and thus, a power receiving operation may be activated.

[0079] In one embodiment, the NFC circuit may be configured to control the switch circuit (416). The NFC circuit may receive data for changing a screen displayed through the display (415) from the electronic device (101) and provide the data to the display (415). Since the default state of the switch circuit (416) is the first state, the display (415) may not be supplied with power within the first state. The NFC circuit may be configured to change the switch circuit (416) from the first state to the second state so that the display driving circuit (415a) can be supplied with the power necessary to change the screen displayed through the panel (415b) based on the data. For example, the NFC circuit may be configured to receive a trigger signal for changing a screen displayed through the display (415) from the electronic device (101). The NFC circuit may be configured to change the switch circuit (416) from the first state to the second state based on receiving the trigger signal. As the switch circuit (416) changes to the second state, power can be received through the wireless charging coil, and the received power can be provided to the display (415). The display driving circuit (415a) can be configured to change the screen by controlling the panel (415b) using the power.

[0080] According to one embodiment, the accessory device (400) can prevent interference with the wireless charging operation of the electronic device (101) by controlling the default state of the switch circuit (416) to the first state. For example, even if the electronic device (101) is placed on the wireless charging device while being accommodated in the accessory device (400), the power reception operation of the accessory device (400) can be deactivated because the switch circuit (416) is in the first state. The battery (427) charging operation of the electronic device (101) by the wireless charging device can be performed, and the accessory device (400) can not interfere with the charging operation. Since the accessory device (400) controls the switch circuit (416) to the second state only when changing the screen displayed through the display (415), a smooth wireless charging operation of the electronic device (101) can be possible.

[0081] Below, the specific operation of the accessory device (400) is described.

[0082] FIG. 5A is a flow chart illustrating the operation of an electronic device and an accessory device for changing a screen according to one embodiment. FIG. 5B illustrates an accessory device according to one embodiment.

[0083] The operations of the electronic device (101) illustrated in FIG. 5A may be operations caused by the electronic device (101) when instructions stored in a memory (e.g., memory (422) of FIG. 4B) are individually or collectively executed by at least one processor (e.g., at least one processor (421) of FIG. 4B).

[0084] Referring to FIG. 5A, in operation 501, the accessory device (400) may be configured to display a first screen through a display (e.g., display (415) of FIG. 4A).

[0085] Referring to the state (500a) before the screen change of FIG. 5B, the accessory device (400) is illustrated displaying the first screen (515) before the change. Within FIG. 5B, within the state (500a), the display (415) is illustrated to display the first screen (515) including a still first image (516) (e.g., an image of a puppy), but is not limited thereto. Within the present disclosure, the first screen (515) may be a screen displaying a still image or a screen not displaying an image as the screen before the change. According to one embodiment, the display (415) of the accessory device (400) may not substantially consume power to maintain the display of the screen including the still first image (516).

[0086] In operation 502, the electronic device (101) may be configured to receive a user input to change the screen displayed through the display (415) of the accessory device (400) from a first screen to a second screen.

[0087] According to one embodiment, instructions stored within the memory (422), when individually or collectively executed by at least one processor (421), may cause the electronic device (101) to receive user input.

[0088] For example, a user of an electronic device (101) may execute an application that controls the operation of an accessory device (400) to change a screen displayed on a display (415) of the accessory from a first screen to a second screen. A memory (e.g., memory (422) of FIG. 4B) of the electronic device (101) may store source data of a screen to be displayed on the display (415). The application may provide a user interface (UI) for user input to change the screen displayed on the display (415). For example, the UI may provide images to be displayed on the display (415) based on the source data, and the user may provide user input for any one of the images. The above descriptions are merely examples of user input and are not limited thereto.

[0089] In operation 503, the electronic device (101) may be configured to transmit a trigger signal to the accessory device (400) to change the screen of the accessory device (400) to a second screen based on receiving a user input.

[0090] According to one embodiment, the instructions stored in the memory (422), when individually or collectively executed by at least one processor (421), may cause the electronic device (101) to transmit the trigger signal to the accessory device (400) via an antenna of the electronic device (101) (e.g., antenna (423) of FIG. 4B) based on receiving a user input.

[0091] According to one embodiment, the trigger signal may be referred to as a signal for guiding the accessory device (400) to receive power. For example, the switch circuit of the accessory device (400) (e.g., the switch circuit (416) of FIG. 4A) may maintain a first state, which is a default state. Within the first state of the switch circuit (416), the accessory device (400) cannot receive power transmitted from the electronic device (101), and therefore, the accessory device (400) may not be able to change the screen of the display (415). The electronic device (101) may first transmit the trigger signal before transmitting the data so that the accessory device (400) can change to a state in which it can receive power (e.g., the second state of the switch circuit (416)) before transmitting the data.

[0092] In operation 504, the accessory device (400) may be configured to receive a trigger signal to change the screen displayed through the display (415) to a second screen.

[0093] According to one embodiment, the accessory device (400) may be configured to receive the trigger signal via an antenna (e.g., antenna (411) of FIG. 4A). An NFC circuit (e.g., NFC circuit (412) of FIG. 4A) of the accessory device (400) may obtain the trigger signal received via the antenna (411).

[0094] In operation 505, the accessory device (400) may be configured to change the switch circuit (416) to a second state in which the switch circuit (416) electrically connects the wireless charging coil (e.g., the wireless charging coil (413) of FIG. 4A) and the display (415) based on receiving a trigger signal.

[0095] According to one embodiment, the NFC circuit (412) of the accessory device (400) may be configured to control the switch circuit (416) to a second state to change a state in which power required to change a screen of the display (415) can be received based on receiving a trigger signal from the electronic device (101). The NFC circuit may be configured to change the switch circuit (416) from a first state in which the switch circuit (416) electrically separates the wireless charging coil and the display (415) to a second state in which the switch circuit (416) electrically connects the wireless charging coil (413) and the display (415) based on receiving the trigger signal. As the switch circuit (416) changes from the first state to the second state, the wireless charging coil (413) may be electrically connected to the wireless charging circuit (414). The second state may be referred to as a closed state of the switch circuit (416).

[0096] According to one embodiment, the accessory device (400) may transmit response information indicating that it receives power or is capable of receiving power to the electronic device (101) by connecting the wireless charging coil (413) and the wireless charging circuit (414). The response information may include a first packet and a second packet, which will be described later.

[0097] In operation 506, the accessory device (400) may be configured to transmit a first packet indicating a second state of the switch circuit (416) to the electronic device (101).

[0098] According to one embodiment, the accessory device (400) may transmit a first packet indicating a second state of the switch circuit (416) to the electronic device (101) to notify that the state of the switch circuit (416) has changed from the first state to the second state.

[0099] In operation 507, the electronic device (101) may be configured to transmit power to the accessory device (400) via the wireless charging coil (425) based on transmitting the first data packet.

[0100] According to one embodiment, the instructions stored in the memory (422), when individually or collectively executed by at least one processor (421), may cause the electronic device (101) to transmit power to the accessory device (400) via the wireless charging coil (425). For example, the wireless charging circuit (426) of the electronic device (101) may transmit power stored in the battery (427) to the accessory device (400) via the wireless charging coil (425).

[0101] According to one embodiment, the electronic device (101) may be configured to transmit power based on receiving a first packet from the accessory device (400). For example, instructions stored in the memory (422), when individually or collectively executed by at least one processor (421), may cause the electronic device (101) to transmit power to the accessory device (400) via a wireless charging coil (e.g., the wireless charging coil (425) of FIG. 4B ) based on receiving a first data packet. The processor (421) may identify that the state of the switch circuit (416) of the accessory device (400) is the second state based on the first packet received from the accessory device (400). If the electronic device (101) transmits power immediately after transmitting the trigger signal, power may be provided before the switch circuit (416) changes to the second state, which may result in unnecessary power consumption. The electronic device (101) can reduce unnecessary power consumption by transmitting power based on receiving the first packet, thereby allowing the accessory device (400) to receive power in a state in which it can receive power (e.g., the second state of the switch circuit (416)). For example, at least one processor (421) can activate the wireless charging circuit (426) based on receiving the first packet after a trigger signal is transmitted through the NFC circuit (424) and the antenna (423).

[0102] In operation 508, the accessory device (400) may be configured to receive power transmitted from the electronic device (101) through the wireless charging coil (413).

[0103] According to one embodiment, when the switch circuit (416) changes to the second state, the accessory device (400) may receive power transmitted from the electronic device (101). Within the second state of the switch circuit (416), a first terminal of the switch circuit (416) (e.g., the first terminal (416a) of FIG. 4A) and a second terminal of the switch circuit (416) (e.g., the second terminal (416b) of FIG. 4A) may be electrically connected. The power transmitted from the electronic device (101) may be received through the wireless charging coil (413) and provided to the display (415) through the wireless charging circuit (e.g., the wireless charging circuit (414) of FIG. 4A) and the power management circuit (e.g., the power management circuit (417) of FIG. 4A). The power management circuit (417) may be configured to provide the power to the display (415).

[0104] In operation 509, the accessory device (400) may be configured to transmit a second packet indicating receipt of power to the electronic device (101).

[0105] According to one embodiment, the accessory device (400) may transmit a second packet indicating receipt of power to the electronic device (101) to indicate receipt of power through the wireless charging coil (413) in the second state of the switch circuit (416).

[0106] In operation 510, the electronic device (101) may be configured to transmit data to the accessory device (400) to change the screen displayed through the display (415) to a second screen based on receiving the second packet.

[0107] According to one embodiment, the instructions stored in the memory (422), when individually or collectively executed by at least one processor (421), may cause the electronic device (101) to transmit the data to the accessory device (400) via the antenna (423) of the electronic device (101) based on receiving the second packet. The data may include source data of a second image (e.g., the second image (522) of FIG. 5B) included in a second screen to be displayed via the display (415).

[0108] In operation 511, the accessory device (400) may be configured to receive data for changing the screen displayed through the display (415) to a second screen.

[0109] According to one embodiment, the accessory device (400) may be configured to receive the data via the antenna (411). The NFC circuit (412) may acquire the data received via the antenna (411). The NFC circuit (412) may provide the data to a display driving circuit (e.g., the display driving circuit (415a) of FIG. 4A). For example, the NFC circuit (412) may provide the data to a control circuit (e.g., the control circuit (418) of FIG. 4A), and the control circuit (418) may be configured to change the data into data readable by the display driving circuit (415a). The control circuit (418) may provide the data to the display driving circuit (415a) in a format suitable for the display driving circuit (415a). The display driving circuit (415a) may receive the data via the control circuit (418). However, the present invention is not limited thereto, and the control circuit (418) may be omitted. If the control circuit (418) is omitted, the NFC circuit (412) may directly provide the data to the display driving circuit (415a).

[0110] In operation 512, the accessory device (400) may be configured to change the screen of the display (415) from a first screen to a second screen using power transmitted from the electronic device (101).

[0111] In one embodiment, the display driver circuit (415a) may be configured to control the panel (415b) to display a second surface based on the data. For example, the display driver circuit (415a) may control the panel (415b) to display a screen including a second image included in the data.

[0112] Referring to the state (500b) after the screen change of FIG. 5b, the accessory device (400) displaying the changed second screen (521) is illustrated. Within the state (500b) of FIG. 5b, the display (415) can display the second screen (521) including a still second image (522) (e.g., a cat image). The display driving circuit (415a) can control the panel (415b) to change the first screen (515) to the second screen (521) based on power and data transmitted from the electronic device (101). The display (415) may consume power to change the first screen (515) to the second screen (521), and may not substantially consume power to maintain the display of the second screen (521) after the change to the second screen (521) is completed.

[0113] According to one embodiment, the accessory device (400) may be configured to change the switch circuit (416) from the first state to the second state in order to change the screen displayed through the display (415). Since the accessory device (400) changes the switch circuit (416) to the second state only when changing the screen, it may not affect the wireless charging operation of the electronic device (101). The accessory device (400) may not require constant power because it includes an electrophoretic display (300) that consumes substantially no power to maintain the display of the screen. Since the display (415) may not require constant power, the switch circuit (416) may be controlled to the first state and controlled to the second state for changing the screen. Even if the electronic device (101) is placed on the wireless charging device while being accommodated within the accessory device (400), the accessory device (400) may not interfere with the wireless charging operation of the electronic device (101).

[0114] FIG. 6 is a flowchart illustrating the operation of an electronic device and an accessory device after a screen change, according to one embodiment.

[0115] The operations of the electronic device (101) illustrated in FIG. 6 may be operations caused by the electronic device (101) when instructions stored in a memory (e.g., memory (422) of FIG. 4b) are individually or collectively executed by at least one processor (e.g., at least one processor (421) of FIG. 4b).

[0116] The operation of the electronic device (101) and the operation of the accessory device (400) illustrated in FIG. 6 may be referred to as an operation performed after the operation illustrated in FIG. 5A.

[0117] Referring to FIG. 6, operations 510, 511, and 512 may be referred to as operations 510, 511, and 512 of FIG. 5A. Descriptions of operations 510, 511, and 512 are replaced with descriptions described with reference to FIG. 5A.

[0118] In operation 601, the electronic device (101) may be configured to refrain from executing a specified operation after transmitting data to the accessory device (400) to change the screen displayed through the display of the accessory device (400) (e.g., the display (415) of FIG. 4A) to a second screen.

[0119] According to one embodiment, the operation of changing the screen of the display (415) of the accessory device (400) may be performed while the electronic device (101) and the accessory device (400) are coupled. While the accessory device (400) is changing the screen displayed through the display (415), if an operation related to the NFC circuit of the electronic device (101) (e.g., the NFC circuit (424) of FIG. 4B), an operation of receiving power through the wireless charging coil of the electronic device (101) (e.g., the wireless charging coil (425) of FIG. 4B), and / or an operation of sharing power with an external electronic device, etc. are performed, the screen changing operation of the accessory device (400) may not be performed properly.

[0120] For example, if the electronic device (101) transmits and / or receives other data using the antenna (e.g., the antenna (423) of FIG. 4B) and the NFC circuit (424) while the accessory device (400) is performing an operation of changing the screen based on the data received from the electronic device (101), the operation of the electronic device (101) and the operation of the accessory device (400) may interfere with each other. For example, the electronic device (101) may transmit and / or receive a payment signal including payment information using the antenna (423) and the NFC circuit (424). The electronic device (101) may generate a magnetic signal corresponding to the payment signal and transmit the generated magnetic signal to an external electronic device (e.g., a POS device). When the magnetic signal is detected by the external electronic device, magnetic card information corresponding to the payment information may be read (swiped) by a reader of the external electronic device, and the payment information may be transmitted to an external server (e.g., a payment server). In this case, since the payment signal and magnetic signal may affect the accessory device (400), the accessory device (400) may not properly perform the screen changing operation. For example, when the NFC circuit (412) of the accessory device (400) receives power and data from the electronic device (101), and / or when the display driving circuit (e.g., the display driving circuit (415a) of FIG. 4A) controls the panel (415b) based on the data, the payment signal and magnetic signal may act as noise, causing the screen changing operation to not be properly performed.

[0121] For example, while the accessory device (400) is performing an operation of changing the screen based on the data received from the electronic device (101), if the electronic device (101) wirelessly receives power using the wireless charging coil (425) and the wireless charging circuit (e.g., the wireless charging circuit (426) of FIG. 4B) or shares power with an external electronic device (e.g., another electronic device), the operation of the electronic device (101) and the operation of the accessory device (400) may interfere with each other. For example, the wireless charging coil (425) may receive power from the wireless charging device or transmit power to the external electronic device. For the reception or transmission of the power, the electronic device (101) may transmit and / or receive a signal for activating the wireless communication circuit (426) to and from the wireless charging device or the external electronic device. Since the accessory device (400) surrounds a part of the electronic device (101), the power and / or the signal may affect the accessory device (400), and thus the screen change operation of the accessory device (400) may not be performed properly. Since the power and / or the signal is interrupted by the wireless charging coil (413) of the accessory device (400), the wireless charging operation or power sharing operation of the electronic device (101) may not be performed properly.

[0122] In order to reduce interference with the above-described operations of the electronic device (101) and the screen change operation of the accessory device (400), the electronic device (101) according to one embodiment may be configured to refrain from executing designated operations after transmitting data to the accessory device (400). The designated operations may include at least one of an operation of receiving power from a wireless charging device through the wireless charging coil (425), an operation of sharing power with an external electronic device, or an operation of transmitting other data (e.g., data including payment information) using the antenna (423), as described above, but the embodiments of the present disclosure are not limited thereto. In addition to the examples described above, the designated operations may include an operation of transmitting and / or receiving a signal through the antenna (423) for NFC, or an operation of transmitting and / or receiving power through the wireless charging coil (425).

[0123] In operation 602, the accessory device (400) may be configured to change a switch circuit (e.g., switch circuit (416) of FIG. 4A) from a first state to a second state based on a completion signal indicating completion of a screen change.

[0124] According to one embodiment, the display driver circuit (415a) may provide a completion signal indicating the completion of the screen change to the NFC circuit (412) after completing the change of the first screen to the second screen. The NFC circuit (412) may be configured to change the switch circuit (416) from the second state to the first state based on receiving the completion signal from the display driver circuit (415a). For example, the display driver circuit (415a) may change the first screen to the second screen using power provided in the second state in which the first terminal (e.g., the first terminal (416a) of FIG. 4A) and the second terminal (e.g., the second terminal (416b) of FIG. 4A) are electrically connected, and when the screen change is completed, the display driver circuit (415a) may provide a completion signal to the control circuit (e.g., the control circuit (418) of FIG. 4A). The control circuit (418) may provide the completion signal provided from the display driver circuit (415a) to the NFC circuit. However, the present invention is not limited thereto, and the control circuit (418) may be omitted. If the control circuit (418) is omitted, the display driving circuit (415a) may directly provide a completion signal to the NFC circuit (412). The NFC circuit (412) may change the switch circuit (416) from the second state to the first state by electrically separating the first terminal (416a) and the second terminal (416b) based on receiving the completion signal. When the switch circuit (416) is changed to the second state, the accessory device (400) may not receive power transmitted from the electronic device (101).

[0125] In operation 603, the accessory device (400) may be configured to transmit a completion signal to the electronic device (101).

[0126] According to one embodiment, the NFC circuit (412) may be configured to transmit a completion signal provided from the display driving circuit (415a) to the electronic device (101) via an antenna (e.g., antenna (411) of FIG. 4A).

[0127] In operation 604, the electronic device (101) may be configured to receive a completion signal from the accessory device (400).

[0128] According to one embodiment, the instructions stored in the memory (422), when individually or collectively executed by at least one processor (421), may cause the electronic device (101) to receive a completion signal from the accessory device (400) via the antenna (423). The at least one processor (421) may be configured to identify that a screen change operation of the accessory device (400) has been completed based on obtaining the completion signal received via the antenna.

[0129] In operation 605, the electronic device (101) may be configured to allow execution of a specified operation.

[0130] According to one embodiment, the instructions stored in the memory (422), when individually or collectively executed by at least one processor (421), may cause the electronic device (101) to permit execution of a designated operation based on receiving a completion signal from the accessory device (400). Allowing execution of the designated operation may be referred to as controlling to allow execution of the designated operation that was controlled to be avoided in operation 601 again. According to one embodiment, since the screen change operation of the accessory device (400) has been completed, the electronic device (101) may re-execute the designated operation that was controlled to be avoided. By executing the designated operation after the screen change operation of the accessory device (400) has been completed, interference between the operations of the electronic device (101) and the operations of the accessory device (400) may be reduced.

[0131] FIG. 7A is a flowchart illustrating the operation of an electronic device according to one embodiment when a user input is received while executing a specified operation. FIG. 7B illustrates examples of an electronic device according to one embodiment providing a notification to indicate the termination of a specified operation.

[0132] The operations of the electronic device (101) illustrated in FIG. 7a may be operations caused by the electronic device (101) when instructions stored in a memory (e.g., memory (422) of FIG. 4b) are individually or collectively executed by at least one processor (e.g., at least one processor (421) of FIG. 4b).

[0133] Referring to FIG. 7A, at operation 701, the electronic device (101) may be configured to identify that a specified operation is being executed at the timing of receiving a user input.

[0134] According to one embodiment, the instructions stored in the memory (422), when individually or collectively executed by at least one processor (421), may cause the electronic device (101) to identify that a specified operation is being performed at a timing when the electronic device receives a user input for changing a screen of an accessory device (e.g., accessory device (400) of FIG. 4B ).

[0135] According to one embodiment, a user may execute an application for changing the screen of an accessory device (400) and provide user input for changing the screen through the application. At the time of receiving the user input, a designated operation may already be in progress. For example, a wireless charging operation may be in progress when the electronic device (101) is placed on a wireless charging device. During the execution of the wireless charging operation, the user may input a user input for changing the screen of the accessory device (400) to the electronic device (101). At least one processor (421) may be configured to identify that a designated operation is in progress at the time of receiving the user input.

[0136] In operation 702, the electronic device (101) may be configured to refrain from transmitting a trigger signal based on identifying that a specified operation is being executed.

[0137] According to one embodiment, the instructions stored in the memory (422) may be configured to, when individually or collectively executed by at least one processor (421), cause the electronic device (101) to refrain from transmitting a trigger signal based on identifying that a designated operation is being performed at the timing of receiving a user input. The electronic device (101) may not transmit a trigger signal to the accessory device (400) that causes a control operation of a switch circuit (e.g., switch circuit (416) of FIG. 4B ) of the accessory device (400). If the trigger signal is transmitted to the accessory device (400), the NFC circuit (e.g., NFC circuit (412) of FIG. 4B ) of the accessory device (400) may cause the switch circuit (416) to change from a first state to a second state, thereby interfering with the designated operation and the screen change operation of the accessory device (400). The electronic device (101) may not transmit a trigger signal even if it receives a user input while a specified operation is being executed.

[0138] In operation 703, the electronic device (101) may be configured to provide a notification to guide the discontinuation of a specified operation.

[0139] According to one embodiment, the instructions stored in the memory (422), when individually or collectively executed by at least one processor (421), may cause the electronic device (101) to provide a notification to guide the discontinuation of a specified operation. The notification may include a visual notification (e.g., visual notification (711) of FIG. 7B ), an auditory notification (723), and / or a tactile notification (731).

[0140] Referring to FIG. 7B, an electronic device (101) according to one embodiment may include a display (710), at least one speaker (720), and / or at least one haptic motor (730). The display (710), the at least one speaker (720), and / or the at least one haptic motor (730) may be electrically connected to the at least one display (710). The at least one display (710) may be configured to provide a notification to guide the discontinuation of the designated operation by using the display (710), the at least one speaker (720), and / or the at least one haptic motor (730) based on identifying that a designated operation is being performed at a timing when a user input is received.

[0141] According to one embodiment, at least one processor (421) may control the display (710) to display a visual notification (711) on the display (710) to guide the discontinuation of a specified operation. For example, when the at least one processor (421) receives the user input while the wireless charging operation is in progress, the at least one processor (421) may display a visual notification (711) including text such as "Stop wireless charging to change the screen of the accessory device (400)." However, the text is only described as an example of the visual notification (711), and embodiments of the visual notification (711) are not limited to the above-described description. For example, the visual notification (711) may include an image or video that intuitively represents an operation of detaching the electronic device (101) from the wireless charging device. The user may intuitively recognize that the screen change operation of the accessory device (400) cannot be performed through the visual notification (711) displayed on the display (710). The user can maintain execution of the specified operation without changing the screen of the accessory device (400), or can stop execution of the specified operation and change the screen of the accessory device (400).

[0142] According to one embodiment, at least one processor (421) may control at least one speaker (720) to output an auditory notification (723) to guide the discontinuation of a designated operation through at least one speaker (720). According to one embodiment, at least one speaker (720) may include, but is not limited to, a first speaker (721) and a second speaker (722). For example, the first speaker (721) may be referred to as a speaker disposed at the top of the electronic device (101), and the second speaker (722) may be referred to as a speaker disposed at the bottom of the electronic device (101).

[0143] For example, at least one processor (421) may control at least one speaker (720) to provide an auditory notification (723) including a voice such as "Stop wireless charging to change the screen of the accessory device (400)" when the user input is received while the wireless charging operation is in progress. In FIG. 7B, the auditory notification (723) is illustrated as being output from the first speaker (721), but this is merely exemplary and is not limited thereto. For example, the auditory notification (723) may be output through the second speaker (722), or may be output through the first speaker (721) and the second speaker (722) simultaneously. The voice is merely described as an example of the auditory notification (723), and embodiments of the auditory notification (723) are not limited to the above-described description. For example, the auditory notification (723) may include a warning sound or a preset sound. The user can intuitively recognize that the screen change operation of the accessory device (400) cannot be executed through an auditory notification (723) output through at least one speaker (720). The user can maintain execution of the designated operation without changing the screen of the accessory device (400), or can stop execution of the designated operation and change the screen of the accessory device (400).

[0144] According to one embodiment, at least one processor (421) may control at least one speaker (720) to output a tactile notification (731) to guide the discontinuation of a designated operation through at least one haptic motor (730). For example, when the at least one processor (421) receives the user input while the wireless charging operation is being executed, the at least one haptic motor (730) may control the at least one haptic motor (730) to generate the tactile notification (731). The at least one haptic motor (730) may generate vibration to guide the user that the screen change operation of the accessory device (400) cannot be executed. The user may maintain execution of the designated operation without changing the screen of the accessory device (400), or may stop execution of the designated operation and change the screen of the accessory device (400). In addition, the electronic device (101) may provide a notification to guide the discontinuation of the designated operation in various ways.

[0145] Referring again to FIG. 7A, at operation 704, the electronic device (101) may be configured to identify whether a specified operation has been interrupted. If an interruption of the specified operation has been identified, operation 705 may be performed. If an interruption of the specified operation has not been identified, operation 702 may be performed again.

[0146] In operation 705, the electronic device (101) may be configured to transmit a trigger signal to the accessory device (400) based on identifying a cessation of execution of a specified operation.

[0147] According to one embodiment, the instructions stored in the memory (422), when individually or collectively executed by at least one processor (421), may cause the electronic device (101) to transmit a trigger signal to the accessory device (400) based on identifying a cessation of execution of a designated operation. When the designated operation is interrupted, the electronic device (101) may transmit the trigger signal to the accessory device (400) because the screen change operation of the accessory device (400) can be performed smoothly. For example, the at least one processor (421) may identify a cessation of execution of the designated operation and transmit the trigger signal to the accessory device (400) via the antenna (423). The NFC circuit (412) of the accessory device (400) may change the switch circuit (416) from a first state to a second state based on receiving the trigger signal. As the switch circuit (416) changes to the second state, the screen change operation of the accessory device (400) can be performed stably.

[0148] An electronic device (101) according to one embodiment can reduce interference between the operations and provide reliability of the operations of the electronic device (101) and the accessory device (400) by limiting the execution of a screen change operation of an accessory device (400) while performing a wireless charging operation, an operation of transmitting and / or receiving other data, or a power sharing operation.

[0149] FIG. 8 illustrates an accessory device according to one embodiment, including a shielding sheet.

[0150] Referring to FIG. 8, an accessory device (400) according to one embodiment may include a shielding sheet (810). The shielding sheet (810) may be used to shield electromagnetic waves provided by components mounted within the plate (231). The shielding sheet (810) may include a conductive material for shielding electromagnetic waves. For example, the shielding sheet (810) may include, but is not limited to, copper, aluminum, nickel, or silver. For example, a printed board assembly (PBA) disposed within the accessory device (400) may include a shielding sheet (810) for shielding noise.

[0151] According to one embodiment, the electronic device (101) can be accommodated and used within the receiver (230) of the accessory device (400). The plate (231) can cover the back of the electronic device (101). In order to wirelessly charge the electronic device (101), the electronic device (101) can be placed on a wireless charging device (801).

[0152] According to one embodiment, the shielding sheet (810) may be spaced apart from an area (820) of the receiver (230) corresponding to the wireless charging coil (425) of the electronic device (101). The area (820) of the receiver (230) may be referred to as an area (820) of the plate (231) that overlaps the wireless charging coil (425) when the electronic device (101) accommodated in the receiver (230) is viewed from above. When the electronic device (101) is accommodated in the receiver (230), the shielding sheet (810) may be spaced apart from an area (820) of the plate (231) corresponding to the wireless charging coil (425) so as not to overlap the wireless charging coil (425) of the electronic device (101) accommodated in the receiver (230). For example, the shielding sheet (810) may not be placed within the area (820) of the plate (231) facing the wireless charging coil (425), but may be placed only within an area different from the area (820).

[0153] Since the shielding sheet (810) shields electromagnetic waves, if the shielding sheet (810) overlaps with the area (820) of the plate (231) corresponding to the wireless charging coil (425), the wireless charging operation of the electronic device (101) may be hindered. Since the shielding sheet (810) shields the power transmitted from the wireless charging device (801), the wireless charging of the electronic device (101) may be impossible or the charging efficiency may be reduced. According to one embodiment, the shielding sheet (810) disposed within the plate (231) may be disposed to avoid the wireless charging coil (425) of the electronic device (101), thereby reducing the influence on the wireless charging operation of the electronic device (101).

[0154] An accessory device (400) for use with an electronic device (101) is provided. The accessory device (400) may include a receiver (230) for receiving the electronic device (101). The accessory device (400) may include an antenna (411) for near field communication (NFC) disposed within the receiver (230). The accessory device (400) may include an NFC circuit (412) disposed within the receiver (230) and electrically connected to the antenna (411). The accessory device (400) may include a wireless charging coil (413) disposed within the receiver (230) and configured to receive power transmitted from the electronic device (101). The accessory device (400) may include a display (415) including a panel (415b) arranged on the receiver (230) and configured to display a first screen independently of the provision of the power, and a display driver integrated circuit (DDI) configured to control the panel (415b) based on the data for changing the screen displayed through the display (415) to the second screen. The accessory device (400) may include a switch circuit (416) used as a path for providing power provided from the wireless charging coil (413) to the display (415) and selectively electrically connected to the NFC circuit (412). The switch circuit (416) may be configured to provide a first state in which the switch circuit (416) electrically separates the wireless charging coil (413) and the display (415) or a second state in which the switch circuit (416) electrically connects the wireless charging coil (413) and the display (415).

[0155] According to one embodiment, the NFC circuit (412) may be configured to receive a trigger signal from the electronic device (101) to change a screen displayed through the display (415) to a second screen. Based on receiving the trigger signal, the state of the switch circuit (416) may be configured to change from the first state to the second state. The NFC circuit (412) may be configured to receive, from the electronic device (101), the data for changing a screen displayed through the display (415) to the second screen while the switch circuit (416) is controlled to the second state. The NFC circuit (412) may be configured to provide the data to the display driving circuit (415a). The display driving circuit (415a) may be configured to change the first screen to the second screen based on the data by using the power while the switch circuit (416) is controlled to the second state.

[0156] According to one embodiment, the NFC circuit (412) may be configured to change the switch circuit (416) from the second state to the first state based on receiving a completion signal indicating completion of a change of the screen from the display driving circuit (415a).

[0157] According to one embodiment, the accessory device (400) may further include a wireless charging circuit (414) electrically connected to the wireless charging coil (413) via the switch circuit (416). The accessory device (400) may further include a power management circuit (417) (PMIC, power management integrated circuitry) configured to provide power provided from the wireless charging circuit (414) to the display driving circuit (415a).

[0158] According to one embodiment, the accessory device (400) may further include a control circuit (418) disposed between the NFC circuit (412) and the display driving circuit (415a). The control circuit (418) may be configured to receive the data received from the electronic device (101) from the NFC circuit (412). The control circuit (418) may be configured to change the data into data readable by the display driving circuit (415a). The control circuit (418) may be configured to provide the changed data to the display driving circuit (415a).

[0159] According to one embodiment, the control circuit (418) may be configured to receive a completion signal indicating completion of a change of the screen from the display driving circuit (415a). The control circuit (418) may be configured to provide the completion signal to the NFC circuit (412).

[0160] According to one embodiment, the NFC circuit (412) may be configured to receive the completion signal from the control circuit (418). The NFC circuit (412) may be configured to transmit the completion signal to the electronic device (101) via the antenna (411).

[0161] According to one embodiment, the display (415) may include an electrophoretic display (300).

[0162] According to one embodiment, the accessory device (400) may further include a shielding sheet (810) disposed within the receiver (230). The shielding sheet (810) may be spaced apart from an area (820) of the receiver (230) corresponding to the wireless charging coil (413) of the electronic device (101) when the electronic device (101) is accommodated within the receiver (230).

[0163] According to one embodiment, the default state of the switch circuit (416) may be the first state.

[0164] According to one embodiment, the receptor (230) may include a plate (231) and side walls (232) extending from the plate (231).

[0165] According to one embodiment, the plate (231) and the side walls (232) can define an internal volume having a size and shape that accommodates the electronic device (101).

[0166] According to one embodiment, the antenna (411), the NFC circuit (412), the wireless charging coil (413), and the display driving circuit (415a) may be disposed within the plate (231). The display (415) may be disposed on the rear surface of the plate (231).

[0167] A method performed by an accessory device (400) for use with an electronic device (101) is provided. The method may include receiving a trigger signal from the electronic device (101) for changing a screen displayed through a display (415) of the accessory device (400). The method may include changing, based on receiving the trigger signal, a state of a switch circuit (416) of the accessory device (400) from a first state in which the switch circuit (416) electrically separates a wireless charging coil (413) of the accessory device (400) from the display (415), to a second state in which the switch circuit (416) electrically connects the wireless charging coil (413) and the display (415). The method may include receiving, from the electronic device (101), data for changing a screen displayed through the display (415) while the switch circuit (416) is controlled to the second state. The method may include an operation of changing the first screen to the second screen based on the data by using power transmitted from the electronic device (101) while the switch circuit (416) is controlled to the second state.

[0168] According to one embodiment, the method may further include an operation of changing the switch circuit (416) from the second state to the first state based on completion of the change of the screen.

[0169] According to one embodiment, the method may further include an operation of transmitting a completion signal indicating completion of a change of the screen to the electronic device (101).

[0170] An electronic device (101) is provided. The electronic device (101) may include an NFC (near field communication) antenna module including an NFC antenna (423) and an NFC circuit (424). The electronic device (101) may include a wireless charging coil (425) configured to transmit or receive power. The electronic device (101) may include at least one processor (421) including a processing circuit. The electronic device (101) may include a memory (422) that stores instructions. The instructions, when individually or collectively executed by the at least one processor (421), may cause the electronic device (101) to select an image to be displayed through an E-ink display (415) of an accessory device. The instructions, when individually or collectively executed by the at least one processor (421), may cause the electronic device (101) to receive an input for displaying the image through the E-ink display (415) of the accessory device (400). The instructions, when individually or collectively executed by the at least one processor (421), may cause the electronic device (101) to transmit, through the antenna module, a control signal for connecting the wireless charging coil (413) and the wireless charging circuit (414) of the accessory device (400) to the accessory device (400) based on receiving the input.The instructions, when individually or collectively executed by the at least one processor (421), may cause the electronic device (101) to receive response information from the accessory device (400) indicating a state in which the wireless charging coil (413) and the wireless charging circuit (414) of the accessory device (400) are connected. The instructions, when individually or collectively executed by the at least one processor (421), may cause the electronic device (101) to transmit, to the accessory device (400) through the antenna module, the image data to be displayed through the E-ink display (415) of the accessory device (400), based on receiving the response information. The above instructions, when individually or collectively executed by the at least one processor (421), may cause the electronic device (101) to refrain from executing a specified operation after transmitting the image data.

[0171] An electronic device (101) is provided. The electronic device (101) may include at least one processor (421) including processing circuitry. The electronic device (101) may include a memory (422) including one or more storage media for storing instructions. The electronic device (101) may include an antenna (423) for near field communication (NFC). The electronic device (101) may include a wireless charging coil (425) configured to transmit or receive power. The instructions, when individually or collectively executed by the at least one processor (421), may cause the electronic device (101) to receive a user input for transforming a screen displayed through a display (415) of an accessory device (400). The instructions, when individually or collectively executed by the at least one processor (421), may cause the accessory device (400) to transmit, through the antenna (423), a trigger signal for changing a screen displayed on the display (415) of the accessory device (400) based on receiving the user input. The instructions, when individually or collectively executed by the at least one processor (421), may cause the electronic device (101) to receive, from the accessory device (400), a first packet indicating a closed state of a switch circuit (416) of the accessory device (400). The instructions, when individually or collectively executed by the at least one processor (421), may cause the electronic device (101) to transmit power, through the wireless charging coil (425), to the accessory device (400) based on receiving the first packet.The instructions, when individually or collectively executed by the at least one processor (421), may cause the electronic device (101) to receive a second packet indicating receipt of the power from the accessory device (400). The instructions, when individually or collectively executed by the at least one processor (421), may cause the electronic device (101) to transmit, through the antenna (423), data for changing a screen displayed on a display (415) of the accessory device (400) based on receiving the second packet. The instructions, when individually or collectively executed by the at least one processor (421), may cause the electronic device (101) to refrain from performing a designated operation after transmitting the data.

[0172] According to one embodiment, the instructions, when individually or collectively executed by the at least one processor (421), may cause the electronic device (101) to receive, from the accessory device (400), a completion signal indicating completion of the screen change. The instructions, when individually or collectively executed by the at least one processor (421), may cause the electronic device (101) to permit execution of the specified operation based on receiving the completion signal.

[0173] According to one embodiment, the preset operation of the electronic device (101) may include at least one of an operation of receiving power from a wireless charging device through the wireless charging coil (425), an operation of sharing power with an external electronic device, or an operation of transmitting other data using the antenna (423).

[0174] According to one embodiment, the instructions, when individually or collectively executed by the at least one processor (421), may cause the electronic device (101) to identify that the specified operation is in progress at the timing of receiving the user input. The instructions, when individually or collectively executed by the at least one processor (421), may cause the electronic device (101) to refrain from transmitting the trigger signal based on identifying that the specified operation is in progress. The instructions, when individually or collectively executed by the at least one processor (421), may cause the electronic device (101) to provide a notification to guide the cessation of the specified operation.

[0175] According to one embodiment, the instructions, when individually or collectively executed by the at least one processor (421), may cause the electronic device (101) to transmit the trigger signal to the accessory device (400) based on identifying a cessation of execution of the operation.

[0176] An electronic device (101) according to one embodiment may further include a display (710). The instructions, when individually or collectively executed by the at least one processor (421), may cause the electronic device (101) to display a visual notification (711) to guide the discontinuation of the operation through the display (710) of the electronic device (101).

[0177] According to one embodiment, the instructions, when individually or collectively executed by the at least one processor (421), may cause the electronic device (101) to transmit the power, via the wireless charging coil (425), to the accessory device (400) based on a specified period of time elapsed after transmitting the trigger signal.

[0178] Electronic devices according to the various embodiments disclosed in this document may take various forms. Electronic devices may include, for example, portable communication devices (e.g., smartphones), computer devices, portable multimedia devices, portable medical devices, cameras, electronic devices, or home appliances. Electronic devices according to the embodiments of this document are not limited to the aforementioned devices.

[0179] The various embodiments of this document and the terminology used therein are not intended to limit the technical features described in this document to specific embodiments, but should be understood to include various modifications, equivalents, or substitutes of the embodiments. In connection with the description of the drawings, similar reference numerals may be used for similar or related components. The singular form of a noun corresponding to an item may include one or more of the items, unless the context clearly indicates otherwise. In this document, each of the phrases "A or B", "at least one of A and B", "at least one of A or B", "A, B, or C", "at least one of A, B, and C", and "at least one of A, B, or C" can include any one of the items listed together in the corresponding phrase among those phrases, or all possible combinations thereof. Terms such as "first," "second," or "first" or "second" may be used merely to distinguish one component from another, and do not limit the components in any other respect (e.g., importance or order). When a component (e.g., a first component) is referred to as "coupled" or "connected" to another component (e.g., a second component), with or without the terms "functionally" or "communicatively," it means that the component can be connected to the other component directly (e.g., wired), wirelessly, or through a third component.

[0180] The term "module" used in various embodiments of this document may include a unit implemented in hardware, software, or firmware, and may be used interchangeably with terms such as logic, logic block, component, or circuit. A module may be an integral component, or a minimum unit or part of such a component that performs one or more functions. For example, according to one embodiment, a module may be implemented in the form of an application-specific integrated circuit (ASIC).

[0181] Various embodiments of the present document may be implemented as software (e.g., a program (140)) including one or more instructions stored in a storage medium (e.g., an internal memory (136) or an external memory (138)) readable by a machine (e.g., an electronic device (101)). For example, a processor (120) (e.g., the processor (120)) of a machine (e.g., an electronic device (101)) may call at least one instruction among the one or more instructions stored from the storage medium and execute it. This enables the machine to operate to perform at least one function according to the at least one called instruction. The one or more instructions may include code generated by a compiler or code executable by an interpreter. The machine-readable storage medium may be provided in the form of a non-transitory storage medium. Here, 'non-transitory' simply means that the storage medium is a tangible device and does not contain signals (e.g., electromagnetic waves), and the term does not distinguish between cases where data is stored semi-permanently or temporarily on the storage medium.

[0182] According to one embodiment, the method according to various embodiments disclosed in the present document may be provided as included in a computer program product. The computer program product may be traded as a product between a seller and a buyer. The computer program product may be distributed in the form of a machine-readable storage medium (e.g., compact disc read only memory (CD-ROM)), or may be distributed online (e.g., downloaded or uploaded) via an application store (e.g., Play Store™) or directly between two user devices (e.g., smart phones). In the case of online distribution, at least a portion of the computer program product may be temporarily stored or temporarily generated in a machine-readable storage medium, such as a memory (130) of a manufacturer's server, an application store's server, or a relay server.

[0183] According to various embodiments, each component (e.g., a module or a program) of the above-described components may include one or more entities, and some of the entities may be separated and placed in other components. According to various embodiments, one or more components or operations of the aforementioned components may be omitted, or one or more other components or operations may be added. Alternatively or additionally, a plurality of components (e.g., a module or a program) may be integrated into a single component. In such a case, the integrated component may perform one or more functions of each of the plurality of components identically or similarly to those performed by the corresponding component among the plurality of components prior to the integration. According to various embodiments, the operations performed by a module, program, or other component may be executed sequentially, in parallel, iteratively, or heuristically, or one or more of the operations may be executed in a different order, omitted, or one or more other operations may be added.

Claims

1. In an accessory device for use with an electronic device, A receptor for accommodating the above electronic device; An antenna for near field communication (NFC) disposed within the above receptor; An NFC circuit disposed within the receptor and electrically connected to the antenna; A wireless charging coil disposed within the receptor and configured to receive power transmitted from the electronic device; A display including a panel arranged on the receptor and configured to display a first screen independently of the supply of the power, and a display driver integrated circuit (DDI) configured to control the panel based on the data for changing the screen displayed through the display to the second screen; and A switch circuit is used as a path for providing power provided from the wireless charging coil to the display, and is optionally electrically connected to the NFC circuit. The above switch circuit, wherein the switch circuit is configured to provide a first state in which the wireless charging coil and the display are electrically separated or a second state in which the switch circuit electrically connects the wireless charging coil and the display. Accessory device.

2. In paragraph 1, The above NFC circuit, Receive a trigger signal from the electronic device to change the screen displayed through the display to a second screen, Based on receiving the trigger signal, the state of the switch circuit is changed from the first state to the second state, While the switch circuit is controlled to the second state, the data for changing the screen displayed through the display to the second screen is received from the electronic device, Providing the above data to the display driving circuit, The above display driving circuit, While the switch circuit is controlled to the second state, the power is used to change the first screen to the second screen based on the data. Accessory device.

3. In paragraph 1 or 2, The above NFC circuit, Based on receiving a completion signal indicating completion of a change of the screen from the display driving circuit, the switch circuit is configured to change from the second state to the first state. Accessory device.

4. In any one of paragraphs 1 to 3, A wireless charging circuit electrically connected to the wireless charging coil through the switch circuit; and Further comprising a power management integrated circuitry (PMIC) configured to provide power provided from the wireless charging circuit to the display driving circuit. Accessory device.

5. In any one of paragraphs 1 to 4, Further comprising a control circuitry disposed between the NFC circuit and the display driving circuit, The above control circuit, The data received from the electronic device is provided from the NFC circuit, Change the above data into data that can be read by the display driving circuit, configured to provide the above-mentioned changed data to the display driving circuit, Accessory device.

6. In paragraph 5, The above control circuit, Receive a completion signal indicating completion of the change of the screen from the above display driving circuit, configured to provide the above completion signal to the NFC circuit, Accessory device.

7. In paragraph 6, The above NFC circuit, Receive the completion signal from the above control circuit, configured to transmit the completion signal to the electronic device through the antenna, Accessory device.

8. In any one of paragraphs 1 to 7, The above display is, Including an electrophoretic display, Accessory device.

9. In any one of paragraphs 1 to 8, Further comprising a shielding sheet disposed within the above receptor, The above shielding sheet, When the electronic device is accommodated within the receptor, the area of ​​the receptor corresponding to the wireless charging coil of the electronic device is spaced apart from the area of ​​the receptor. Accessory device.

10. In any one of paragraphs 1 to 9, The default state of the above switch circuit is: The above first state, Accessory device.

11. In any one of paragraphs 1 to 10, The above receptors are, comprising a plate and side walls extending from said plate, Accessory device.

12. In paragraph 11, The above plate and the side walls define an internal volume having a size and shape that accommodates the electronic device. Accessory device.

13. In paragraph 11 or 12, The antenna, the NFC circuit, the wireless charging coil, and the display driving circuit, placed within the above plate, The above display is, placed on the back of the above plate, Accessory device.

14. A method performed by an accessory device for use with an electronic device, An action of receiving a trigger signal for changing a screen displayed through a display of an accessory device from the electronic device; An operation of changing a state of a switch circuit of the accessory device based on receiving the trigger signal, from a first state in which the switch circuit electrically separates the wireless charging coil of the accessory device from the display, to a second state in which the switch circuit electrically connects the wireless charging coil from the display; An operation of receiving data for changing a screen displayed through the display from the electronic device while the switch circuit is controlled to the second state; and While the switch circuit is controlled to the second state, an operation is included to change the first screen to the second screen based on the data using power transmitted from the electronic device. method.

15. In paragraph 14, Further comprising an operation of changing the switch circuit from the second state to the first state based on the completion of the change of the screen. method.

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