Electronic device comprising illuminance sensor and method for operating same

Abstract

An electronic device according to one embodiment of the present invention may comprise: a display which displays a screen, visually exposed at the front, through at least a portion of a panel including a plurality of pixels; a display driver configured to control the on / off of the plurality of pixels of the display on the basis of a designated scanning operation period or a designated duty ratio; a photodiode positioned behind or to one side of the display; an illuminance sensor including a capacitor electrically connected to the photodiode and a conversion element configured to acquire signals related to the voltage of the capacitor; and at least one processor. The at least one processor may be configured to: transmit, to the illuminance sensor, signals related to a plurality of time intervals set on the basis of the designated scanning operation period or the designated duty ratio; receive, from the illuminance sensor, signals related to the voltage of the capacitor cumulatively charged during the set plurality of time intervals by the photodiode; and acquire data related to illuminance on the basis of the received signals related to the voltage of the capacitor.

Description

Electronic device including a light sensor and method of operating the same

[0001] The present disclosure relates to an electronic device including a light sensor for measuring the intensity of ambient light and a method of operating the same.

[0002] Electronic devices equipped with displays, such as smartphones and tablets, can measure the intensity of ambient light via a light sensor and use this information to adjust the display's brightness. For example, in bright environments, the display's brightness can be relatively increased. Conversely, in dark environments, the display's brightness can be relatively decreased. This allows the device to automatically display a screen with a brightness appropriate for the surrounding environment.

[0003] 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 related to the present disclosure.

[0004] An electronic device according to one embodiment of the present disclosure may include a display that displays a screen visually exposed to the front through at least a portion of a panel including a plurality of pixels, a display driver configured to control the plurality of pixels of the display to turn on / off based on a designated scanning operation period or a designated duty ratio, a light sensor including a photodiode positioned at the rear or side of the display, a capacitor electrically connected to the photodiode, and a conversion element configured to obtain a signal related to a voltage of the capacitor, a memory that stores instructions, and at least one processor. The instructions, when executed by the at least one processor, may be configured to cause the electronic device to transmit a signal related to a plurality of time intervals set based on the designated scanning operation period or the designated duty ratio to the light sensor. The instructions, when executed by the at least one processor, may be configured to cause the electronic device to check a signal related to a voltage of the capacitor that is received from the light sensor and is accumulated and charged by the photodiode during the designated plurality of time intervals. The above instructions, when executed by the at least one processor, may be configured to cause the electronic device to obtain data related to illuminance based on a signal related to the voltage of the identified capacitor.

[0005] According to one embodiment of the present disclosure, a method of operating an electronic device may include an operation of transmitting a signal related to a plurality of time intervals set based on a specified scanning operation cycle or a specified duty ratio of a display to a light sensor. The display may include a plurality of pixels. According to one embodiment, a method of operating an electronic device may include an operation of checking a signal related to a voltage of a capacitor that is accumulated and charged during a plurality of time intervals specified by a photodiode, received from the light sensor. The capacitor may be electrically connected to the photodiode. According to one embodiment, a method of operating an electronic device may include an operation of acquiring data related to illuminance based on a signal related to the checked voltage of the capacitor.

[0006] A storage medium storing computer-readable instructions according to one embodiment of the present disclosure, wherein the instructions, when executed by at least one processor of an electronic device, cause the electronic device to transmit a signal related to a plurality of time intervals set based on a specified scanning operation cycle or a specified duty ratio of a display to a light sensor, wherein the display may include a plurality of pixels. The instructions, when executed by at least one processor of the electronic device, cause the electronic device to determine a signal related to a voltage of a capacitor accumulated and charged by a photodiode during a plurality of time intervals specified by the photodiode, received from the light sensor, wherein the capacitor may be electrically connected to the photodiode. The instructions, when executed by at least one processor of the electronic device, may cause the electronic device to obtain data related to illuminance based on the determined signal related to the voltage of the capacitor.

[0007] FIG. 1 is a block diagram of an electronic device within a network environment according to one embodiment of the present disclosure.

[0008] FIG. 2 is a block diagram of an electronic device according to one embodiment of the present disclosure.

[0009] FIG. 3 illustrates an exploded perspective view of a light sensor according to one embodiment of the present disclosure.

[0010] FIG. 4 illustrates an operation signal of a light sensor according to one embodiment of the present disclosure.

[0011] FIG. 5 illustrates a configuration of a display according to one embodiment of the present disclosure.

[0012] FIG. 6 illustrates an operation signal of a display according to one embodiment of the present disclosure.

[0013] FIG. 7a and FIG. 7b illustrate a configuration in which a light sensor is arranged according to one embodiment of the present disclosure.

[0014] Fig. 8 illustrates an operation signal related to illuminance measurement of a light sensor according to one embodiment.

[0015] Fig. 9a illustrates an operation signal in short mode of a light sensor according to a comparative example.

[0016] Figure 9b shows the operating signal in short mode of a light sensor in which noise occurs according to a comparative example.

[0017] Figure 9c illustrates the operation signal in short mode of the light sensor when an AC light source according to a comparative example is present.

[0018] FIG. 10 illustrates a block diagram of a light sensor according to one embodiment of the present disclosure.

[0019] FIG. 11 is a graph illustrating the responsiveness of a light sensor to a wavelength band according to one embodiment of the present disclosure.

[0020] FIG. 12 illustrates an operation signal in short mode of a light sensor according to one embodiment of the present disclosure.

[0021] FIG. 13 is a voltage graph of a capacitor being charged in multiple time intervals according to one embodiment of the present disclosure.

[0022] FIGS. 14A, 14B and 14C illustrate block diagrams of a light sensor in each operating mode according to one embodiment of the present disclosure.

[0023] FIG. 15A illustrates an operation signal of a light sensor when the same environment is maintained according to one embodiment of the present disclosure.

[0024] FIG. 15b illustrates an operation signal of a light sensor when changing from a low-light environment to a high-light environment, according to one embodiment of the present disclosure.

[0025] FIG. 15c illustrates an operation signal of a light sensor when changing from a high-light environment to a low-light environment according to one embodiment of the present disclosure.

[0026] FIG. 16 illustrates an operation signal in short mode of a light sensor when an AC light source is present, according to one embodiment of the present disclosure.

[0027] FIG. 17A and FIG. 17B are flowcharts of a method of operating an electronic device according to one embodiment of the present disclosure.

[0028] FIG. 18a and FIG. 18b are flowcharts of a method of operating a light sensor according to one embodiment of the present disclosure.

[0029] FIG. 1 is a block diagram of an electronic device (101) within a network environment (100) according to one embodiment of the present disclosure.

[0030] 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 at least one of 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)).

[0031] 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.

[0032] 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, on the electronic device (101) itself where the artificial intelligence model is executed, 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.

[0033] 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).

[0034] 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).

[0035] 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).

[0036] 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.

[0037] 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. According to 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.

[0038] 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).

[0039] 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.

[0040] The interface (177) may support one or more designated protocols that may be used to directly or wirelessly connect the electronic device (101) with 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.

[0041] 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).

[0042] 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.

[0043] 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.

[0044] The power management module (188) can manage 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).

[0045] 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.

[0046] 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).

[0047] 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.

[0048] 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, for example, by the communication module (190). A signal or power may be transmitted or received between the communication module (190) and an external electronic device via the at least one selected 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).

[0049] 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.

[0050] 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)).

[0051] 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 a 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 one 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.

[0052] FIG. 2 is a block diagram of an electronic device (101) according to one embodiment of the present disclosure.

[0053] Referring to FIG. 2, an electronic device (101) according to one embodiment may include a processor (210), a display (220), a display driver (230), and / or a light sensor (240). In addition, the electronic device (101) may further include, or exclude, some of the individual components of the electronic device (101) included in FIG. 1.

[0054] A processor (210) according to one embodiment may execute software stored in a memory (not shown, for example, memory (130) of FIG. 1) to control at least one other component (e.g., hardware or software component) of an electronic device (101) operatively connected to the processor (210). The processor (210) according to one embodiment may perform various data processing or operations.

[0055] The processor (210) according to one embodiment may be a single configuration or may be a configuration divided or separated into multiple parts. The processor (210) according to one embodiment may be composed of a main processor (e.g., an application processor) that performs high-performance processing and a secondary processor (e.g., a supplementary processor, a sensor hub) that performs low-power processing.

[0056] A processor according to one embodiment may include an application processor (AP) (215) and / or a sensor hub (217). Here, the AP (215) and the sensor hub (217) are shown as separate configurations, but may be integrated into a single hardware configuration or formed as one piece.

[0057] In one embodiment, the AP (215) can control the display screen of the display (220) and the properties of the display (220). For example, the properties of the display (220) may include color or brightness. In one embodiment, the AP (215) can obtain data related to illuminance through the illuminance sensor (240) and the sensor hub (217), and determine the ambient illuminance using the obtained data related to illuminance. In one embodiment, the AP (215) can determine the luminance of the display (220) based on the determined ambient illuminance (e.g., brightness [lux]).

[0058] In one embodiment, the processor (210) (e.g., AP (215)) may increase the brightness of the display (220) to ensure visibility when the surroundings are bright due to sunlight, such as outdoors. In one embodiment, the processor (210) (e.g., AP (215)) may lower the brightness of the display (220) to prevent glare to the user when the surroundings are dark. In one embodiment, the processor (210) (e.g., AP (215)) may also remove at least a portion of the blue light from the light it outputs to protect the user's eyes or ensure a healthy sleep.

[0059] A sensor hub (217) according to one embodiment can manage the overall operation of a sensor module (e.g., a sensor module (176) of FIG. 1) included in an electronic device (101). For example, since high-performance processing through the sensor module (176) is not required and continuous measurement is possible with low power, the sensor hub (217) can be used as an auxiliary processor.

[0060] The display (220) according to one embodiment may be a variety of screen display devices such as an organic LED (OLED), a quantum-dot LED (QLED), or a liquid crystal display (LCD) depending on the display method or structure. In one embodiment, the display (220) may include lighting that separately generates a backlight on the rear surface. In one embodiment, the display (220) may include a plurality of pixels (not shown), and each pixel (not shown) may directly generate light.

[0061] In one embodiment, the display (220) can generate light to display a screen, and the light generated by the display (220) can affect the measurement value of illuminance measured by the illuminance sensor (240).

[0062] In one embodiment, the display (220) may have properties such as color or brightness that are displayed on the screen. In one embodiment, the properties of the display (220) may be manually changed by user input or automatically changed by a processor (e.g., AP (215)). In one embodiment, the display (220) may increase brightness by increasing the duty ratio. In one embodiment, the display (220) may decrease brightness by decreasing the duty ratio.

[0063] A display driver (230, DDI: display driver interface) according to one embodiment may be a semiconductor device that controls a display (220). In one embodiment, the display driver (230) may display a screen (e.g., an image frame) generated from an AP (215) on the display (220).

[0064] In one embodiment, the display driver (230) may be designed to control drive signals and / or data to display images or moving images on the display (220). In one embodiment, the display driver (230) may be connected to the display (220) via a flexible printed circuit board (FPCB) or film, or may be configured independently from the display (220).

[0065] In one embodiment, the display driver (230) may be configured to be integrally included in the display (220).

[0066] In one embodiment, the display (220) may be composed of a plurality of pixels arranged in a vertical and horizontal axis, and the display driver (230) may update the screen for the plurality of pixels included in the display (220) one line at a time.

[0067] In one embodiment, the display (220) can implement a moving image by updating one or more image frames, and a plurality of pixels included in the display (220) can be turned on / off repeatedly, and the screen displayed on the display (220) can be changed as each pixel is turned on in response to updated pixel information.

[0068] In one embodiment, the display driver (230) may include a sync pin (235) for transmitting a synchronization signal to the light sensor (240) or receiving a synchronization signal from the light sensor (240) for timing synchronization with the light sensor (240).

[0069] According to one embodiment, the light sensor (240) may be a sensor that measures the intensity of ambient light it receives. In one embodiment, the light sensor (240) may include a photodiode (not shown) that receives external light and outputs a voltage, and a conversion element (not shown) that outputs a signal related to a voltage value measured from the voltage output from the photodiode (not shown). In one embodiment, the conversion element (not shown) may include an analog-digital converter (ADC) element (not shown) that outputs a voltage of the photodiode (not shown) input in analog form in digital form.

[0070] In one embodiment, a photodiode (not shown) may receive light of a specified wavelength band and output it as a voltage. In one embodiment, the light sensor (240) may further include a capacitor (not shown) that accumulates and stores the voltage output from the photodiode (not shown).

[0071] In one embodiment, the light sensor (240) may include a sync pin (245) that receives a synchronization signal from a sync pin (235) included in the display driver (230) or transmits a synchronization signal to the sync pin (235) included in the display driver (230). In one embodiment, the light sensor (240) may operate according to a timing synchronized with the display driver (230) based on a synchronization signal received or transmitted through the sync pin (245).

[0072] FIG. 3 illustrates an exploded perspective view of a light sensor (240) according to one embodiment of the present disclosure. FIG. 4 illustrates an operation signal of a light sensor (240) according to one embodiment of the present disclosure.

[0073] Referring to FIGS. 3 and 4, a light sensor (240) according to one embodiment may include a substrate (310), a die (320) fixed to the substrate (310) and having a photodiode (360) mounted thereon, a wire (330) bonded to the die (320), a compound mold (340) formed by molding the die (320) with a resin material, and / or a cap (350) fixedly coupled to the substrate (310) at the bottom to cover other parts or members.

[0074] In one embodiment, the photodiode (360) included in the light sensor (240) may be formed in an array structure arranged in the x-axis and the y-axis. In one embodiment, the array of the photodiode (360) is composed of at least one cell arranged in the x-axis and the y-axis, and at least one cell may output a voltage in response to light corresponding to a designated wavelength band. For example, at least one cell included in the photodiode (360) may output a voltage in response to light corresponding to a red band, a green band, a blue band, and / or a clear band, respectively. For example, at least one cell included in the photodiode (360) may include a cell (not shown) that responds to light corresponding to an infrared band (e.g., 700 [nm] to 1000 [nm]) or a cell (W) that responds to light corresponding to a wide band (e.g., 400 [nm] to 1000 [nm]).

[0075] As illustrated in FIG. 4, an ambient light sensor (ALS: ambient light sensor) 240 according to one embodiment of the present invention operates at a specified period ( ) can operate by repeatedly switching on / off operations according to a specified cycle. In one embodiment, the light sensor (240) may operate at a specified cycle ( ), based on the on state ( ) only works and can be stopped when in the off state. For example, at a specified period ( ) can be preset to the light sensor, determined by the user, or changed depending on conditions.

[0076] In one embodiment, the light sensor (240) is turned on ( ) can output a voltage corresponding to the intensity of light in a designated band through at least one cell included in the photodiode (360). In one embodiment, a conversion element (not shown) of the light sensor (240) can measure the voltage output from the photodiode (360) and output a signal related to the voltage value.

[0077] In one embodiment, the sensor sensitivity of the light sensor (240) may be determined by the integration time (IT) and / or the size of the photodiode (360). For example, the longer the integration time of the light sensor (240), the higher the sensor sensitivity. For example, the larger the size of the photodiode (360), the higher the sensor sensitivity.

[0078] FIG. 5 illustrates a configuration of a display (220) according to one embodiment of the present disclosure. FIG. 6 illustrates an operation signal of a display (220) according to one embodiment of the present disclosure.

[0079] Referring to FIGS. 5 and 6, a display (220) according to one embodiment includes a panel (520) (or display panel) that displays a screen that is visually exposed to the front, and the panel (520) of the display (220) may include a plurality of pixels (510).

[0080] In one embodiment, the display (220) may be in the form of an array including A scan lines, each scan line consisting of B pixels. For example, a full HD display may include 1920 * 1080 pixels, and a QHD display may include 2560 * 1440 pixels.

[0081] In one embodiment, the display (220) performs a specified scanning operation cycle (T D ), the B pixels (510) constituting one scanning line can be operated to turn on / off simultaneously or to turn on / off sequentially. In one embodiment, by the scanning operation of the display (220), the plurality of pixels (510) included in the display (220) can update the screen corresponding to the image frame. For example, the plurality of pixels (510) included in the display (220) can be operated to turn on / off at approximately 30 to 120 [Hz] according to the designated scanning operation, and as an example, the designated scanning operation cycle (T) is performed by scanning the scanning line at 60 [Hz]. D ) is explained as 16.6 [ms].

[0082] In one embodiment, a plurality of pixels (510) included in the display (220) are scanned for a specified scanning operation cycle (T D ) can be set to operate on / off at least once. For example, a plurality of pixels (510) can be turned on / off during one specified scanning operation cycle (T D ) is turned on / off 4 times, and one on / off operation cycle can be 4.15 [ms].

[0083] In one embodiment, the electronic device (101) is configured to operate each pixel (510) for a time (T) during which the pixel is on. Don ) or by controlling the base brightness (C) when each pixel (510) is turned on, the brightness of the screen displayed on the display (220) can be adjusted.

[0084] FIG. 7a and FIG. 7b illustrate a configuration in which a light sensor (240) is arranged according to one embodiment of the present disclosure.

[0085] Referring to FIGS. 7A and 7B, a light sensor (240) according to one embodiment may be positioned to avoid interference with light output by a display (220, e.g., a panel (520) displaying a screen of the display (220)) in an electronic device (101).

[0086] In one embodiment, the light sensor (240) may be an under-panel light sensor mounted on the back surface of a panel (520) of a display (220) that generates light to display a screen on the front surface, as illustrated in FIG. 7A. For example, the panel (520) of the display (220) may be provided with a glass layer (710) on the front surface, and an light sensor (240) mounted on a PCB (720, printed circuit board) on the back surface, and a cover panel (225) may be arranged on the side of the light sensor (240) to surround the light sensor (240).

[0087] In one embodiment, the light sensor (240) may be positioned on the side of the panel (520) of the display (220), as illustrated in FIG. 7B. For example, the panel (520) of the display (220) may be provided with a glass layer (710) on the front through which light emitted from the panel (520) is transmitted, and the light sensor (240) mounted on a PCB (720) on the side of the panel (520) may be provided.

[0088] In one embodiment, the light sensor (240) may be positioned opposite or to the side of the direction in which the panel (520) of the display (220) emits light, thereby avoiding direct light noise of the panel (520) of the display (220).

[0089] FIG. 8 illustrates an operation signal related to illuminance measurement of an illuminance sensor (240) according to one embodiment.

[0090] Referring to FIG. 8, an electronic device (e.g., the electronic device (101) of FIG. 2) according to an embodiment can measure the ambient illuminance in a first measurement mode (e.g., short mode) and / or a second measurement mode (e.g., long mode) through an illuminance sensor (e.g., the illuminance sensor (240) of FIG. 2). For example, the first measurement mode (e.g., short mode) and the second measurement mode (e.g., long mode) may be used one by one, but the electronic device (101) according to an embodiment can measure the ambient illuminance more accurately by periodically operating the illuminance sensor (240) in an alternating manner. For example, there is no priority between the first measurement mode (e.g., short mode) and the second measurement mode (e.g., long mode), and the electronic device (101) according to an embodiment may, in some cases, operate the illuminance sensor (240) in the first measurement mode (e.g., short mode) first or in the second measurement mode (e.g., long mode) first.

[0091] In one embodiment, the electronic device (101) can measure the surrounding illuminance in a short mode through the illuminance sensor (240). In one embodiment, in the short mode, the integration time (IT) is set relatively short (e.g., 400 [μs]), and the electronic device (101) can measure the surrounding illuminance based on the voltage value measured by the illuminance sensor (240) during the off operation period of the display (220, e.g., the display (220) of FIG. 2).

[0092] In one embodiment, the electronic device (101, e.g., sensor hub (217)) may be operable to measure the ambient illuminance according to a specified illuminance measurement cycle (e.g., 50 [ms]), and may measure the ambient illuminance through the illuminance sensor (240) for a specified time (e.g., 40 [ms]) within the specified illuminance measurement cycle. In one embodiment, the illuminance sensor (240) may, in a short mode, measure the ambient illuminance for each of a plurality of times by repeating a relatively short set cumulative time (IT, e.g., 400 [μs]) within a specified time for measuring illuminance in the sensor hub (217).

[0093] In one embodiment, the electronic device (101) can measure the surrounding illuminance in long mode through the illuminance sensor (240). In one embodiment, in the long mode, the integration time (IT) is set relatively long (e.g., 25 [ms]), and the electronic device (101) can measure the surrounding illuminance based on the voltage value measured by the illuminance sensor (240) in the on-operation section and the off-operation section of the display (220). For example, the electronic device (101) (e.g., the sensor hub (217)) can compensate for the light noise caused by the on-operation of the display (220) using the color of pixel ratio (COPR) value.

[0094] In one embodiment, the electronic device (101, e.g., sensor hub (217)) can measure the ambient illuminance according to a specified illuminance measurement cycle (e.g., 50 [ms]), and can measure the ambient illuminance in a long mode for a specified time (e.g., 25 [ms]) within the specified illuminance measurement cycle. In one embodiment, the illuminance sensor (240) can measure the ambient illuminance for a relatively long set cumulative time (IT, e.g., 25 [ms]) within a specified time for measuring illuminance in the sensor hub (217) in the long mode. For example, the illuminance sensor (240) can repeat the specified illuminance measurement cycle or the cumulative time multiple times within the specified time even in the long mode.

[0095] In one embodiment, in short mode, the accumulation time is 400 [μs], which may have a lower sensitivity of about 1 / 60 compared to the long mode with an accumulation time of 25 [ms]. Accordingly, the light sensor (240), which cannot recognize light in a low-light environment due to the low sensitivity, may make an error of measuring 0 [lux] even though there is light around it. In order to improve the sensitivity of the light sensor (240), the size of the accumulation time may be increased, or the size of the photodiode (e.g., the photodiode (360) of FIG. 3) may be increased. However, since the off-operation period of the display (220) is fixed, there is a limit to the size of the accumulation time. For example, when the off-operation period of the display (220) is 1 [ms], the accumulation time of the light sensor (240) may have to be set to 800 [μs] or less. In addition, when the size of the photodiode (360) is increased, the problem of both price and size may occur.

[0096] Fig. 9a illustrates an operation signal in short mode of a light sensor (240) according to a comparative example. Fig. 9b illustrates an operation signal in short mode of a light sensor (240) in which noise occurs according to a comparative example. Fig. 9c illustrates an operation signal in short mode of a light sensor (240) in the presence of an AC light source according to a comparative example.

[0097] Referring to FIG. 9A, an electronic device (e.g., the electronic device (101) of FIG. 2) according to one embodiment can measure the ambient illuminance in a short mode through an illuminance sensor (e.g., the illuminance sensor (240) of FIG. 2). In one embodiment, a display (e.g., the display (220) of FIG. 2) can be turned on / off based on a specified scanning period or a vertical synchronization signal (Vsync) of a display drive (e.g., the display drive (230) of FIG. 2). For example, the display (220) can be turned on / off based on a refresh rate of 60 [Hz] or a specified scanning period of 16.6 [ms], and each pixel (e.g., a plurality of pixels (510) of FIG. 5) can be turned on / off four times repeatedly in one scanning period. For example, an off operation period between on operation periods of the display (220) can be 1 [ms].

[0098] According to one embodiment, a light sensor (240) can repeatedly turn a photodiode (360) on / off based on a specified cycle, and the photodiode (360) can receive light during the on operation and output it as a voltage. For example, the cumulative time of the on operation of the photodiode (360) can be set to 400 [μs], which is shorter than the off operation (1 [ms]) of the display (220).

[0099] In one embodiment, the light sensor (240) can turn the photodiode (360) on / off repeatedly independently of the on / off operation of the display (220). For example, when the light sensor (240) operates the photodiode (360) in the on operation section of the display (220), it receives both the surrounding light and the light interference of the display (220), and thus can output the voltage of V1. For example, when the light sensor (240) operates the photodiode (360) in the off operation section of the display (220), it receives only the surrounding light, and thus can output the voltage of V2, which is smaller than V1. In one embodiment, the conversion element (not shown) of the light sensor (240) can output a signal related to a voltage value corresponding to the voltage of V1 or V2 output from the photodiode (360).

[0100] In one embodiment, the photodiode (360) may output a voltage by ambient light during the on-operation period, and the output voltage may drop to 0 when no light is received during the off-operation period.

[0101] An electronic device (101) according to one embodiment can measure the ambient illuminance based on a voltage value measured through a conversion element (not shown) while the light sensor (240) repeatedly turns the photodiode (360) on and off independently of the on / off operation of the display (220). In one embodiment, the electronic device (101) can measure the ambient illuminance as a voltage value (e.g., 50) measured in an off operation section of the display (220) that is lower than a voltage value (e.g., 100) measured in an on operation section of the display (220).

[0102] Referring to FIG. 9B, when an assembly tolerance occurs in the display (220) included in the electronic device (101) according to one embodiment, and thus a shift occurs in the on / off operation section of the display (220), the on / off operation timing of the light sensor (240) may be out of sync with the off operation section of the display (220). For example, the on operation section of the light sensor (240) may not be completely included in the off operation section of the display (220), and a portion of the on operation section may overlap with the on operation section of the display (220).

[0103] For example, if the on operation section of the light sensor (240) is completely included in the off operation section of the display (220), the photodiode (360) outputs a voltage of V2, and accordingly, the conversion element (not shown) can output 50 as a signal related to the output voltage. In contrast, if the on operation section of the light sensor (240) partially overlaps with the on operation section of the display (220), the photodiode (360) may be affected by the optical noise of the display (220). The voltage is output, and accordingly, the conversion element (not shown) can output 80 as a signal related to the output voltage. That is, an error may occur in the illuminance measured by the illuminance sensor (240).

[0104] In order to find the measurement value of the light sensor (240) in the off operation section of the display (220), the electronic device (101) according to one embodiment may continuously store data of the photodiode (360) corresponding to a plurality of (e.g., 40 to 80) accumulated times, and identify the lowest value among the stored data as the surrounding illuminance value. Accordingly, a load occurs in the processor of the electronic device (101) (e.g., the processor (210) of FIG. 2) for an operation of storing and processing a plurality of (e.g., 40 to 80) continuous data, and an error in the operation processing, such as data omission, may occur due to an error in the operation timing.

[0105] In addition, the electronic device (101) requires a FIFO (first in first out) block (not shown) for storing a plurality of (e.g., 40 to 80) consecutive data, and accordingly, the size of the light sensor (240) must be increased, the price increases, and the current consumption may increase accordingly.

[0106] Referring to FIG. 9C, an electronic device (101) according to one embodiment may have difficulty accurately measuring a measurement value of a light sensor (240) when an AC (alternating current) light source is present. For example, when an AC light source whose illuminance changes according to a specified frequency is present, the ambient illuminance of the electronic device (101) may change based on the specified frequency, and accordingly, the illuminance value measured by the light sensor (240) may fluctuate.

[0107] As illustrated in FIG. 9c, in the off-operation section of the display (220), the signal related to the output voltage received from the photodiode (360) and output from the conversion element (not shown) may be a value (e.g., 10) smaller than the normal value (e.g., 50), or may fluctuate as the illuminance of the AC light source changes. Accordingly, when the electronic device (101) adjusts the luminance of the display (220) based on the illuminance value measured through the illuminance sensor (240), the luminance of the display (220) may be repeatedly lowered and then raised based on the fluctuation of the measured illuminance value, and the luminance value displayed on the sliding bar (B) in relation to the luminance of the display (220) displayed on the screen of the display (220) may fluctuate.

[0108] Fig. 10 illustrates a block diagram of a light sensor (240) according to one embodiment of the present disclosure. Fig. 11 is a graph illustrating the responsiveness of a light sensor (240) to wavelength bands according to one embodiment of the present disclosure. In the graph of Fig. 11, the x-axis represents a wavelength band, and the y-axis represents the responsiveness of the light sensor (240) in each wavelength band.

[0109] Referring to FIGS. 10 and 11, a light sensor (240) according to one embodiment can measure the intensity of light corresponding to a designated wavelength band. In one embodiment, a photodiode (1010, 1020) included in the light sensor (240) can receive light corresponding to a designated wavelength band and output a voltage with a magnitude based on the intensity of the received light.

[0110] In one embodiment, the light sensor (240) may include photodiodes (1010, 1020), and the photodiodes (1010, 1020) may include a first photodiode (1010) and a second photodiode (1020). In one embodiment, the first photodiode (1010) may receive light in an ambient light sensor (ALS) band, which is a visible light wavelength band (e.g., 400 [nm] to 700 [nm]). In one embodiment, the second photodiode (1020) may receive light in an infrared ray (IR) band, which is an infrared wavelength band (e.g., 700 to 1000 [nm]).

[0111] In one embodiment, the first photodiode (1010) and the second photodiode (1020) are electrically connected to the ground (GND) and can generate a voltage difference with the ground (GND) based on receiving light of a designated wavelength band, respectively. In one embodiment, when the reception of light from the first photodiode (1010) and the second photodiode (1020) is stopped, the voltage difference generated in the first photodiode (1010) and the second photodiode (1020) can be gradually discharged to the ground (GND).

[0112] In one embodiment, to prevent the voltage difference generated in the photodiodes (1010, 1020) from being discharged in a very short period of time, the light sensor (240) may include a capacitor (1030, 1040) electrically connected to the photodiodes (1010, 1020). Accordingly, based on the light being received by the photodiodes (1010, 1020) for a plurality of time intervals, the voltage in the capacitors (1030, 1040) may be accumulated and charged.

[0113] In one embodiment, the capacitors (1030, 1040) may include a first capacitor (1030) and a second capacitor (1040). In one embodiment, the first capacitor (1030) may be electrically connected to a first photodiode (1010). In one embodiment, the second capacitor (1040) may be electrically connected to a second photodiode (1020). In one embodiment, the first capacitor (1030) may be disposed between the first photodiode (1010) and a first conversion element (1050) described below. In one embodiment, the second capacitor (1040) may be disposed between the second photodiode (1020) and a second conversion element (1060) described below.

[0114] In one embodiment, the first capacitor (1030) may be charged by a voltage output based on receiving light in the visible light wavelength band from the first photodiode (1010). In one embodiment, the second capacitor (1040) may be charged by a voltage output based on receiving light in the infrared wavelength band from the second photodiode (1020). In one embodiment, when the reception of light from the first photodiode (1010) and the second photodiode (1020) is stopped, the first capacitor (1030) and the second capacitor (1040) may be gradually discharged.

[0115] In one embodiment, the light sensor (240) may include a first conversion element (1050) and a second conversion element (1060). In one embodiment, the first conversion element (1050) may be connected to a first capacitor (1030) and may output a signal related to a voltage charged in the first capacitor (1030) based on receiving light in the visible light wavelength band from the first photodiode (1010).

[0116] In one embodiment, the second converter element (1060) is connected to the second capacitor (1040) and can output a signal related to the voltage charged in the second capacitor (1040) based on receiving light in the infrared wavelength band from the second photodiode (1020).

[0117] FIG. 12 illustrates an operation signal in short mode of a light sensor (240) according to one embodiment of the present disclosure.

[0118] Referring to FIG. 12, a light sensor (240) according to one embodiment can measure the ambient illuminance during a plurality of time intervals (T1, T2, T3, T4). In one embodiment, a photodiode (e.g., a photodiode (1010, 1020) of FIG. 10) receives light of a designated wavelength band during a plurality of time intervals (T1, T2, T3, T4), and a capacitor (e.g., a capacitor (1030, 1040) of FIG. 10) can be accumulated and charged by the photodiode (1010, 1020) during a plurality of time intervals (T1, T2, T3, T4). In one embodiment, the plurality of time intervals (T1, T2, T3, T4) can include a plurality of time intervals that are each temporally separated, and the capacitor (1030, 1040) can be at least partially discharged between the separated time intervals.

[0119] An electronic device according to one embodiment (e.g., electronic device (101) of FIG. 2, processor (210) of FIG. 2) performs a specified scanning operation cycle (t Duty) or a plurality of time intervals (T1, T2, T3, T4) can be set based on a specified duty ratio. In one embodiment, the electronic device (101) may set a specified scanning operation cycle (t) between vertical synchronization signals (Vsync) of a display driver (e.g., display driver (230) of FIG. 2). Duty ) can be used to set a specified duty ratio of the display (e.g., the display (220) of FIG. 2). In one embodiment, the electronic device (101) may be configured to perform a specified scanning operation cycle (t Duty ) and based on the specified duty ratio, the accumulated time of multiple time intervals (T1, T2, T3, T4) ), the period between multiple time intervals (T1, T2, T3, T4) ) and / or the time between the vertical synchronization signal (Vsync) and the first time interval (T1). ) can be set.

[0120] In one embodiment, the electronic device (101) performs a specified scanning operation cycle (t Duty ) can set multiple time intervals (T1, T2, T3, T4) for each. In one embodiment, the electronic device (101) sets the number of multiple time intervals (T1, T2, T3, T4) to each designated scanning operation cycle (t Duty ) can be set to correspond to the number of repetitions of the on / off operation of the display (220, e.g., multiple pixels (510) of FIG. 5).

[0121] In one embodiment, the electronic device (101) performs a plurality of time intervals (T1, T2, T3, T4) each with a designated scanning operation cycle (t Duty ) can be set to a number of sections less than or equal to the number of on / off repetitions of the display (220). For example, a specified scanning operation cycle (t Duty ) when the on / off operation of the display (220) is 4 times within the specified scanning operation cycle (t Duty) can be set to four multiple time intervals (T1, T2, T3, T4).

[0122] In one embodiment, the electronic device (101) displays a plurality of time intervals (T1, T2, T3, T4) during a designated scanning operation cycle (t) of the display (220). Duty ) and based on the specified duty ratio, the off operation period (t) of the display (220) Doff ) can be set within.

[0123] In one embodiment, the electronic device (101) accumulates time (T1, T2, T3, T4) of a plurality of time intervals. ) in the off operation section (t) of the display (220) Doff ) can be set within. For example, the electronic device (101) can set a specified scanning operation cycle (t Duty ) and based on the specified duty ratio, the off operation period (t) of the display (220) Doff ) is 1 [ms], the accumulated time of each of the multiple time intervals (T1, T2, T3, T4) is ) can be set to 400 [μs], which is shorter than 1 [ms].

[0124] In one embodiment, the electronic device (101) sets a plurality of time intervals (T1, T2, T3, T4) to the off operation interval (t) of the display (220). Doff ) can be set within. In one embodiment, the electronic device (101) can set the first time interval (T1) among the plurality of time intervals (T1, T2, T3, T4) based on the vertical synchronization signal (Vsync) of the display drive (230). In one embodiment, the electronic device (101) can set the first time interval (T1) among the plurality of time intervals (T1, T2, T3, T4) based on the vertical synchronization signal (Vsync) of the display drive (230). In one embodiment, the electronic device (101) can set the first time interval (T1) among the plurality of time intervals (T1, T2, T3, T4) based on the vertical synchronization signal (Vsync) of the display drive (230). Afterwards, the first time interval (T1) can be set. In one embodiment, the electronic device (101) sets a cycle between multiple time intervals (T1, T2, T3, T4). Each can be set to .

[0125] In one embodiment, the display driver (230) may transmit a sync signal related to the timing for controlling the on / off of a plurality of pixels (510) of the display (220) to the light sensor (240). In one embodiment, the electronic device (101) may, based on the sync signal received from the display driver (230), determine a plurality of time intervals (T1, T2, T3, T4) as the off operation interval (t) of the display (220). Doff ) can be set within. In one embodiment, the light sensor (240) can receive light of a specified wavelength band through a photodiode (1010, 1020) in a plurality of time intervals (T1, T2, T3, T4) based on a sync signal received from the display driver (230).

[0126] An electronic device (101) according to one embodiment performs a specified scanning operation cycle (t Duty ) or may transmit signals related to a plurality of time intervals (T1, T2, T3, T4) set based on a specified duty ratio to the light sensor (240). The light sensor (240) according to one embodiment may receive light by the photodiode (1010, 1020) during the plurality of time intervals (T1, T2, T3, T4) based on the received signals related to the plurality of time intervals (T1, T2, T3, T4).

[0127] According to one embodiment, the light sensor (240) may accumulate and charge the capacitor (1030, 1040) based on receiving light by the photodiode (1010, 1020) during a plurality of time intervals (T1, T2, T3, T4). According to one embodiment, the capacitor (1030, 1040) may be accumulated and charged during a plurality of time intervals (T1, T2, T3, T4) and may be at least partially discharged between the plurality of time intervals (T1, T2, T3, T4). For example, the charged voltage of the capacitor (1030, 1040) in each of the plurality of time intervals (T1, T2, T3, T4) , , and It could be.

[0128] The light sensor (240) according to one embodiment can transmit a signal related to the voltage of the capacitor (1030, 1040) to the electronic device (101). The light sensor (240) according to one embodiment can transmit a signal related to a plurality of voltages corresponding to a plurality of time intervals (T1, T2, T3, T4) of the capacitor (1030, 1040) respectively. , , , ) can be transmitted to each electronic device (101).

[0129] According to one embodiment, the light sensor (240) performs a specified scanning operation cycle (t Duty ) is a signal related to the voltage finally charged in multiple time intervals (T1, T2, T3, T4). ) can be transmitted to the processor (210).

[0130] In one embodiment, the electronic device (101) can obtain data related to illuminance based on a signal related to the voltage of the capacitor (1030, 1040) received from the illuminance sensor (240). ...) after a specified scanning operation cycle (t Duty) is the signal related to the final charged voltage ( ), data related to illumination can be obtained.

[0131] FIG. 13 is a voltage graph of a capacitor being charged in multiple time intervals according to one embodiment of the present disclosure.

[0132] A capacitor is charged by connecting it to a power source (e.g., a battery), and the amount of charge or voltage can be calculated using calculus methods. For example, a circuit consisting of a battery, a resistor, and a capacitor can be defined by the following formula using Ohm's law, the voltage law, and the definition of capacitance.

[0133]

[0134]

[0135]

[0136] Here, is the voltage of the battery, is the voltage of the resistor and is the voltage of the capacitor, I is the current, R is the resistance of the resistor, C is the capacitance of the capacitor, and Q is the charge of the capacitor.

[0137] The above differential equation has a general solution, and the detailed solution can be derived by substituting the general solution and boundary conditions. According to the above differential equation, the charge of the capacitor can be calculated using the following equation.

[0138]

[0139] For example, in the case of a circuit in which a resistor and a capacitor are connected, it can be defined by the following formula by Ohm's law, voltage law and definition of capacitance. By the formula below, at time t=0, the capacitor is charged. The charge of and In a charged state, the voltage can be discharged over time to calculate the remaining charge and voltage.

[0140]

[0141]

[0142]

[0143] Referring to FIG. 13, a capacitor (e.g., capacitors (1030, 1040) of FIG. 10) can be accumulated and charged by a photodiode (e.g., photodiode (1010, 1020) of FIG. 10) during a plurality of time intervals (T1, T2, T3, T4). Here, it is assumed that the plurality of time intervals (T1, T2, T3, T4) are four, but the present invention is not limited thereto.

[0144] In one embodiment, the capacitor (1030, 1040) is charged only by the photodiode (1010, 1020) without discharging during the first time interval (T1) among multiple time intervals (T1, T2, T3, T4), so V is generated by the photodiode (1010, 1020). T1 It can be charged as much as that.

[0145] In one embodiment, the photodiode (1010, 1020) is turned on after the first time interval (e.g., the first interval (T1)). AWait Since no light is received during the time, the capacitor (1030, 1040) discharges over time and the voltage increases to V AW1 It can be.

[0146] In one embodiment, the capacitor (1030, 1040) is configured to have a base voltage V in the second time interval (e.g., the second interval (T2)) among multiple time intervals (T1, T2, T3, T4). AW1 From V by photodiode (1010, 1020) T2 can be charged. For example, V T2 is the base voltage VAW1 And the second time interval (e.g., the second interval (T2)) may be the sum of the voltages charged by the photodiodes (1010, 1020). In one embodiment, the capacitors (1030, 1040) may be finally charged to V in the last time interval (e.g., the fourth interval (T4)) among the multiple time intervals (T1, T2, T3, T4) in the same manner as above. T4 can be charged. For example, the voltage accumulated and charged in each of multiple time intervals (T1, T2, T3, T4) can be calculated as in the following formula.

[0147]

[0148]

[0149]

[0150]

[0151]

[0152]

[0153]

[0154] In one embodiment, V is finally charged over multiple time intervals (T1, T2, T3, T4). T4 V is charged by the photodiode (1010, 1020) at each of the multiple time intervals (T1, T2, T3, T4) of the capacitor (1030, 1040). T1 It can be bigger.

[0155] In one embodiment, the capacitor (1030, 1040) may have a capacitance (C1) such that the amount of charge charged in each of the plurality of time intervals (T1, T2, T3, T4) is greater than the amount of discharged between each of the plurality of time intervals (T1, T2, T3, T4).

[0156] In one embodiment, the voltage at which the capacitors (1030, 1040) are charged by the photodiodes (1010, 1020) in each of the multiple time intervals (T1, T2, T3, T4) may be greater than the voltage at which the capacitors are discharged between the multiple time intervals (T1, T2, T3, T4). To satisfy this condition, the capacitance (C1) of the capacitors (1030, 1040) may be derived by the following conditional equation.

[0157]

[0158]

[0159]

[0160]

[0161] FIGS. 14a, 14b and 14c illustrate block diagrams of a light sensor (240) in each operating mode according to one embodiment of the present disclosure.

[0162] Referring to FIGS. 14a, 14b and 14c, a light sensor (240) according to one embodiment may include a capacitor (1033, 1037, 1043, 1047) electrically connected to a photodiode (1010, 1020).

[0163] According to one embodiment, the capacitors (1033, 1037, 1043, 1047) may include a first selection capacitor (1033, 1043) and a second selection capacitor (1037, 1047) that can be selectively connected to the photodiodes (1010, 1020). In one embodiment, the second selection capacitor (1037, 1047) may have a relatively larger charge capacity than the first selection capacitor (1033, 1043). Here, although the capacitors (1033, 1037, 1043, 1047) are described as including the first selection capacitor (1033, 1043) and the second selection capacitor (1037, 1047), three or more capacitors may be included.

[0164] In one embodiment, the photodiodes (1010, 1020) and the conversion elements (1050, 1060) may include a first photodiode (1010) and a second photodiode (1020), and a first conversion element (1050) and a second conversion element (1060), respectively. In one embodiment, the first capacitors (1033, 1037) may include a first selection capacitor (1033) and a second selection capacitor (1037) corresponding to the first photodiode (1010), and the second capacitors (1043, 1047) may include a first selection capacitor (1043) and a second selection capacitor (1047) corresponding to the second photodiode (1020), respectively.

[0165] In one embodiment, the accumulated time (T1, T2, T3, T4) corresponding to each of the multiple time intervals ) is the off operation period (t) of the display (220). Doff ), the electronic device (101) can change the charge capacity of the capacitors (1033, 1037, 1043, 1047) to correspond to the voltage of the photodiode (1010, 1020) that varies depending on the intensity of the ambient light. For example, the electronic device (101) can set the charge capacity of the capacitors (1033, 1037, 1043, 1047) to be relatively small in a low-light environment. For example, the electronic device (101) can set the charge capacity of the capacitors (1033, 1037, 1043, 1047) to be relatively large in a high-light environment.

[0166] An electronic device (101) according to one embodiment can control a light sensor (240) into a plurality of modes (e.g., a low-light mode, a high-light mode, and / or a reset mode) depending on the intensity of ambient light. In one embodiment, the electronic device (101) can change a gain corresponding to an illuminance value measured by the light sensor (240) depending on the low-light mode or the high-light mode.

[0167] In one embodiment, the electronic device (101) can simultaneously control the first selection capacitor (1033) and the second selection capacitor (1037) corresponding to the first photodiode (1010) and the first selection capacitor (1043) and the second selection capacitor (1047) corresponding to the second photodiode (1020) in a first mode (e.g., low-light mode), a second mode (e.g., high-light mode) and / or a third mode (e.g., reset mode). In one embodiment, the electronic device (101) can independently control the first selection capacitor (1033) and the second selection capacitor (1037) corresponding to the first photodiode (1010) and the first selection capacitor (1043) and the second capacitor (1047) corresponding to the second photodiode (1020) in a first mode (e.g., low-light mode), a second mode (e.g., high-light mode) and / or a third mode (e.g., reset mode).

[0168] In one embodiment, referring to FIG. 14A, the electronic device (101) can control the light sensor (240) to a low-light mode when the intensity of the ambient light is relatively weak. In one embodiment, the light sensor (240) can electrically connect the photodiodes (1010, 1020) to the first selection capacitors (1033, 1043) in the low-light mode. For example, the light sensor (240) can control the first switch (1410, 1420) to connect the photodiodes (1010, 1020) and the first selection capacitors (1033, 1043) in the low-light mode.

[0169] In one embodiment, referring to FIG. 14B, the electronic device (101) can control the light sensor (240) to a high-light mode when the intensity of the ambient light is relatively strong. In one embodiment, the light sensor (240) can electrically connect the photodiodes (1010, 1020) to the second selection capacitors (1037, 1047) in the high-light mode. For example, the light sensor (240) can control the first switch (1410, 1420) to connect the photodiodes (1010, 1020) and the second selection capacitors (1037, 1047) in the high-light mode.

[0170] In one embodiment, referring to FIG. 14c, the electronic device (101) performs a specified scanning operation cycle (t Duty ) is completed, or when switching between low-light mode and high-light mode, the light sensor (240) can be controlled in reset mode. In one embodiment, the light sensor (240) can connect the first selection capacitor (1033, 1043) and the second selection capacitor (1037, 1047) to ground by bypassing the photodiode (1010, 1020) in reset mode. For example, the light sensor can control the second switch (1433, 1443) and the third switch (1435, 1445) in reset mode so that the first selection capacitor (1033, 1043) and the second selection capacitor (1037, 1047) by bypassing the photodiode (240) and connect to ground (GND).

[0171] FIG. 15A illustrates an operation signal of a light sensor (240) when the same environment is maintained according to one embodiment of the present disclosure. FIG. 15B illustrates an operation signal of a light sensor (240) when a low-illuminance environment changes to a high-illuminance environment according to one embodiment of the present disclosure. FIG. 15C illustrates an operation signal of a light sensor (240) when a high-illuminance environment changes to a low-illuminance environment according to one embodiment of the present disclosure.

[0172] As illustrated in FIG. 15a, an electronic device according to one embodiment (e.g., the electronic device (101) or the processor (210) of FIG. 2) performs a scanning operation cycle (t) specified by a photodiode (e.g., the photodiode (1010, 1020) of FIG. 10) when the same environment with little change in ambient illumination is maintained. Duty ) can receive a signal related to the voltage of a capacitor (capacitor (1030, 1040) of FIG. 10) that has been accumulated and charged during a plurality of time intervals (T1, T2, T3, T4) included in the photodiode (1010, 1020). In one embodiment, the electronic device (101) can receive a signal related to the voltage charged in either the first selection capacitor (1033, 1043) or the second selection capacitor (1037, 1047) electrically connected to the photodiode (1010, 1020) when the same environment with little change in ambient illumination is maintained.

[0173] According to one embodiment, the light sensor (240) performs a scanning operation cycle (t) specified in either the first selection capacitor (1033, 1043) or the second selection capacitor (1037, 1047) electrically connected to the photodiode (1010, 1020) when the same environment with little change in ambient light is maintained. Duty ) can be accumulated and charged to voltage during multiple time intervals (T1, T2, T3, T4).

[0174] For example, when the ambient illuminance is relatively low, the light sensor (240) can charge the voltage by accumulating it in the first selection capacitor (1033, 1043) for a plurality of time intervals (T1, T2, T3, T4) while electrically connecting the first selection capacitor (1033, 1043) to the photodiode (1010, 1020) (e.g., low-illuminance mode (1510)).

[0175] For example, when the ambient illuminance is relatively high, the light sensor (240) can charge the voltage by accumulating it in the second selection capacitor (1037, 1047) for a plurality of time periods (T1, T2, T3, T4) while electrically connecting the second selection capacitor (1037, 1047) to the photodiode (1010, 1020) (e.g., high-illuminance mode (1530)).

[0176] In one embodiment, the light sensor (240) performs a specified scanning operation cycle (t Duty ) and then charge the voltage by accumulating it for multiple time intervals (T1, T2, T3, T4) until the next vertical synchronization signal (Vsync) is received ( ) can discharge either the first selection capacitor (1033, 1043) or the second selection capacitor (1037, 1047) that has been accumulated and charged by controlling it in reset mode (1520).

[0177] In one embodiment, the electronic device (101) may control the light sensor (240) back to low light mode (1510) or high light mode (1530) when receiving a new vertical synchronization signal (Vsync).

[0178] Referring to FIGS. 15b and 15c, an electronic device (101) according to one embodiment can receive a signal related to a voltage charged in either the first selection capacitor (1033, 1043) or the second selection capacitor (1037, 1047) electrically connected to the photodiode (1010, 1020), while either the first selection capacitor (1033, 1043) or the second selection capacitor (1037, 1047) is electrically connected to the photodiode (1010, 1020). An electronic device (101) according to one embodiment can control a light sensor (240) to change a capacitor connected to a photodiode (1010, 1020) based on a signal related to a voltage charged in either a first selection capacitor (1033, 1043) or a second selection capacitor (1037, 1047) electrically connected to a photodiode (1010, 1020).

[0179] As illustrated in FIG. 15b, an electronic device (101) according to one embodiment is configured such that the voltage of the first selection capacitor (1033, 1043) accumulated and charged for a plurality of time intervals (T1, T2, T3, T4) while the photodiode (1010, 1020) is electrically connected to the first selection capacitor (1033, 1043) reaches a designated first threshold voltage ( ) or more, the light sensor (240) can be controlled so that the second selection capacitor (1037, 1047) is connected to the photodiode (1010, 1020).

[0180] In one embodiment, the electronic device (101) may enter a low-light mode (1510) to select a capacitor corresponding to the surrounding environment among a plurality of capacitors (1033, 1037, 1043, 1047) through a light sensor (240). In one embodiment, the electronic device (101) may control the light sensor (240) to a low-light mode (1510) and then change to a high-light mode (1530) based on a signal related to a voltage charged in a first selection capacitor (1033, 1043).

[0181] An electronic device (101) according to one embodiment is configured to perform a specified scanning operation cycle (t) in a state in which a photodiode (1010, 1020) is electrically connected to a first selection capacitor (1033, 1043) (e.g., low-light mode (1510)). Duty ) can receive the voltage of the first selection capacitor (1033, 1043) that is accumulated and charged during a plurality of time intervals (T1, T2, T3, T4) included in the received specified scanning operation cycle (t Duty ) is accumulated and charged during a plurality of time intervals (T1, T2, T3, T4) included in the first selection capacitor (1033, 1043), the voltage of which is a specified first threshold voltage ( ) can be identified as being abnormal.

[0182] In one embodiment, the electronic device (101) performs a specified scanning operation cycle (t Duty ) is accumulated and charged in at least some of the multiple time intervals (T1, T2, T3, T4) included in the first selection capacitor (1033, 1043) (V T1 , V T2 , V T3 or , , ) is the specified first threshold voltage ( ) can be compared.

[0183] In one embodiment, the electronic device (101) performs a specified scanning operation cycle (t Duty ) is the final accumulated voltage (V) of the first selection capacitor (1033, 1043) accumulated and charged throughout the multiple time intervals (T1, T2, T3, T4) included in T4 or ) is the specified first threshold voltage ( ) can be compared.

[0184] Here, the specified first threshold voltage ( ) can be set based on the charge capacity and / or accumulation time of the first selection capacitor (1033, 1043). For example, a specified first threshold voltage ( ) may be specified as a single value, or may be specified for each of multiple time intervals corresponding to the cumulative number of multiple time intervals.

[0185] In one embodiment, the electronic device (101) performs a specified scanning operation cycle (t Duty ) is accumulated and charged in multiple time intervals (T1, T2, T3, T4) included in the first selection capacitor (1033, 1043) to the first threshold voltage ( ) or more, the cumulative charging of the first selection capacitor (1033, 1043) may be stopped at the specified scanning cycle. In one embodiment, the electronic device (101) may stop the cumulative charging of the first selection capacitor (1033, 1043) at the specified scanning operation cycle (t Duty ) is accumulated and charged in multiple time intervals (T1, T2, T3, T4) included in the first selection capacitor (1033, 1043) to the first threshold voltage ( ) or more, the light sensor (240) can be controlled to high-light mode (1530) so that the second selection capacitor (1037, 1047) is connected to the photodiode (1010, 1020).

[0186] In one embodiment, the electronic device (101) may control the light sensor (240) to a reset mode (1520) so that the first selection capacitor (1033, 1043) that has been accumulated and charged for a plurality of time intervals is discharged before changing the capacitor (1033, 1037, 1043, 1047) connected to the photodiode (1010, 1020).

[0187] In one embodiment, the electronic device (101) stops accumulating charge of the first selection capacitor (1033, 1043) at a specified scanning cycle and then continues the subsequent specified scanning operation cycle (t Duty ) or the time between receiving the subsequent vertical synchronization signal (Vsync) (t reset ) or the light sensor (240) can be controlled in reset mode (1520) for a specified period of time.

[0188] In one embodiment, the electronic device (101) performs a subsequent specified scanning operation cycle (t Duty ) or based on the subsequent vertical synchronization signal (Vsync), the light sensor (240) can be controlled in high-light mode (1530).

[0189] As illustrated in FIG. 15c, an electronic device (101) according to one embodiment can control a light sensor (240) to connect a first selection capacitor (1033, 1043) to a photodiode (1010, 1020) when the voltage of the second selection capacitor (1037, 1047) accumulated and charged for a plurality of time intervals (e.g., high-light mode (1530)) while the photodiode (1010, 1020) is electrically connected to the second selection capacitor (1037, 1047) is lower than a designated second threshold voltage.

[0190] An electronic device (101) according to one embodiment is configured to perform a specified scanning operation cycle (t) in a state in which a photodiode (1010, 1020) is electrically connected to a second selection capacitor (1037, 1047) (e.g., high-intensity mode (1530)). Duty) can receive the voltage of the second selection capacitor (1037, 1047) that is accumulated and charged during a plurality of time intervals (T1, T2, T3, T4) included in the received specified scanning operation cycle (t Duty ) is accumulated and charged during a plurality of time intervals (T1, T2, T3, T4) included in the second selection capacitor (1037, 1047), the voltage of the second threshold voltage ( ) can be identified as follows.

[0191] In one embodiment, the electronic device (101) performs a specified scanning operation cycle (t Duty ) is accumulated and charged in at least some of the multiple time intervals (T1, T2, T3, T4) included in the first selection capacitor (1033, 1043) (V T1 , V T2 , V T3 or , , ) is the specified second threshold voltage ( ) can be compared.

[0192] In one embodiment, the electronic device (101) performs a specified scanning operation cycle (t Duty ) is the final accumulated voltage (V) of the second selection capacitor (1037, 1047) accumulated and charged throughout the multiple time intervals (T1, T2, T3, T4) included in T4 or ) is the specified second threshold voltage ( ) can be compared.

[0193] Here, the specified second threshold voltage ( ) can be set based on the charge capacity and accumulation time of the second selection capacitor (1037, 1047). For example, a specified second threshold voltage ( ) may be specified as a single value, or may be specified for each of multiple time intervals corresponding to the cumulative number of multiple time intervals.

[0194] In one embodiment, the electronic device (101) performs a specified scanning operation cycle (t Duty ) is accumulated and charged in multiple time intervals (T1, T2, T3, T4) included in the second selection capacitor (1037, 1047) to the second threshold voltage ( ) or less, the cumulative charging of the second selection capacitor (1037, 1047) may be stopped at the specified scanning cycle. In one embodiment, the electronic device may stop the cumulative charging of the second selection capacitor (1037, 1047) at the specified scanning operation cycle (t Duty ) is accumulated and charged in multiple time intervals (T1, T2, T3, T4) included in the second selection capacitor (1037, 1047) to the second threshold voltage ( ) below, the light sensor can be controlled to a low light mode (1510) so that the first selection capacitor (1033, 1043) is connected to the photodiode (1010, 1020).

[0195] In one embodiment, the electronic device (101) can control the light sensor to a reset mode (1520) so that a second selection capacitor (1037, 1047) that has been accumulated and charged for a plurality of time intervals is discharged before changing the capacitor (1033, 1037, 1043, 1047) connected to the photodiode (1010, 1020).

[0196] In one embodiment, the electronic device (101) stops accumulating charge of the second selection capacitor (1037, 1047) at a specified scanning cycle and then continues the subsequent specified scanning operation cycle (t Duty ) or the time between receiving the subsequent vertical synchronization signal (Vsync) (t reset ) or the light sensor (240) can be controlled in reset mode (1520) for a specified period of time.

[0197] In one embodiment, the electronic device (101) performs a subsequent specified scanning operation cycle (t Duty ) or based on the subsequent vertical synchronization signal (Vsync), the light sensor (240) can be controlled to a low-light mode (1510).

[0198] FIG. 16 illustrates an operation signal in short mode of a light sensor (240) when an AC light source is present, according to one embodiment of the present disclosure.

[0199] Referring to FIG. 16, an electronic device (101) according to an embodiment may receive a signal related to the voltage of a capacitor (1033, 1037, 1043, 1047) that has been accumulated and charged in a plurality of time intervals (T1, T2, T3, T4) from a light sensor (240). An electronic device (101) according to an embodiment may obtain data related to illuminance based on a signal related to the voltage of a capacitor (1033, 1037, 1043, 1047) that has been accumulated and charged in a plurality of time intervals (T1, T2, T3, T4) from a light sensor (240). In an embodiment, the plurality of time intervals (T1, T2, T3, T4) may be an off operation interval (t) of a display (220). Doff , for example, can be set within 1 [ms]. In one embodiment, the electronic device (101) may set a time (t) between a plurality of time intervals (T1, T2, T3, T4). reset ) can control the light sensor (240) in reset mode (e.g., reset mode (1520) of FIG. 15b).

[0200] Accordingly, even if the brightness of the AC light source varies over time in the form of a wave, by using the voltage of the capacitors (1033, 1037, 1043, 1047) that are accumulated and charged in response to different illuminances in each of a plurality of time intervals (T1, T2, T3, T4), the electronic device (101) can measure a stable illuminance close to the average brightness of the AC light source.

[0201] An electronic device (101) according to one embodiment can adjust the brightness of a screen displayed on a display (220) based on data related to acquired illuminance. In one embodiment, the electronic device (101) can adjust a specified duty ratio of the display (220) or adjust the intensity of light emitted during an on-operation period of a plurality of pixels (e.g., a plurality of pixels (510) of FIG. 5).

[0202] In one embodiment, the electronic device (101) may adjust the brightness of the screen displayed on the display (220) to be relatively high when the ambient illuminance is relatively high based on the acquired data related to illuminance. In one embodiment, the electronic device (101) may adjust the brightness of the screen displayed on the display (220) to be relatively low when the ambient illuminance is relatively low based on the acquired data related to illuminance.

[0203] As illustrated in FIG. 16, the electronic device (101) according to one embodiment can maintain the brightness of the screen displayed on the display (220) at a constant level by measuring a stable illuminance even in an ambient environment including an AC light source. The electronic device (101) according to one embodiment can maintain the brightness value displayed on the sliding bar (B) related to the brightness of the display (220) displayed on the screen of the display (220) at a constant level in preparation for the phenomenon of the sliding bar (B) of FIG. 9c shaking.

[0204] An electronic device (101) according to one embodiment can obtain final data related to illuminance based on data related to illuminance obtained in the short mode of the illuminance sensor (240) and data related to illuminance obtained in the long mode of the illuminance sensor (240).

[0205] In one embodiment, the electronic device (101) can control the light sensor (240) in long mode and obtain data related to light from the light sensor (240) regardless of light interference caused by the screen displayed by the display (220).

[0206] In one embodiment, the electronic device (101) (e.g., sensor hub (217)) may obtain final data related to illuminance based on the data related to illuminance obtained in the short mode of the illuminance sensor (240) and the data related to illuminance obtained in the long mode of the illuminance sensor (240) through a comparison algorithm using the color of pixel ratio (COPR) value. In one embodiment, the electronic device (101) may obtain the final data related to illuminance from one of the data related to illuminance obtained in the short mode of the illuminance sensor (240) and the data related to illuminance obtained in the long mode of the illuminance sensor. In one embodiment, the electronic device (101) may adjust the brightness of the screen displayed on the display (220) based on the final data related to illuminance.

[0207] FIG. 17A and FIG. 17B are flowcharts (1700A, 1700B) regarding a method of operating an electronic device (101) according to one embodiment of the present disclosure.

[0208] Referring to FIGS. 17A and 17B , an electronic device (101) according to one embodiment, in operation 1710, performs a designated scanning operation cycle (t) of a display (220). Duty ) or based on a specified duty cycle, a plurality of time intervals are set for a plurality of pixels (510) to be turned off at a time (t Doff ) can be set respectively.

[0209] An electronic device (101) according to one embodiment, in operation 1720, performs a specified scanning operation cycle (t) of the display (220). Duty) or a signal related to a plurality of time intervals set based on a specified duty ratio can be transmitted to the light sensor (240).

[0210] An electronic device (101) according to one embodiment may, in operation 1730, transmit a sync signal related to the timing for controlling on / off of a plurality of pixels (510) to a light sensor (240) through a display driver (230).

[0211] According to one embodiment, the electronic device (101) can control the light sensor (240) to receive light through the photodiode (360, 1010, 1020) based on the received sync signal at operation 1740.

[0212] An electronic device (101) according to one embodiment can control a light sensor (240) to sequentially and cumulatively charge capacitors (1030, 1040, 1033, 1037, 1043, 1047) in a first section and a second section by a photodiode (360, 1010, 1020) in operation 1750.

[0213] An electronic device (101) according to one embodiment may receive, from a light sensor (240), a signal related to a voltage of a capacitor (1030, 1040, 1033, 1037, 1043, 1047) accumulated and charged during a plurality of time intervals specified by a photodiode (360, 1010, 1020) in operations 1760 and 1770.

[0214] An electronic device (101) according to one embodiment may receive, in operation 1761, a signal related to a voltage of a first selection capacitor (1033, 1043) that has been accumulated and charged over a specified number of time intervals.

[0215] An electronic device (101) according to one embodiment can identify, in operation 1763, whether the voltage of the first selection capacitor (1033, 1043) accumulated and charged over a plurality of time intervals is equal to or higher than a specified first threshold voltage.

[0216] According to one embodiment, the electronic device (101) may obtain data related to illuminance based on a signal related to the voltage of the first selection capacitor (1033, 1043) received in operation 1780, if the voltage of the first selection capacitor (1033, 1043) accumulated and charged over a plurality of time intervals is not higher than a specified first threshold voltage (operation 1763-No).

[0217] According to one embodiment, the electronic device (101) may control the light sensor (240) to discharge at least one of the first selection capacitor (1033, 1043) or the second selection capacitor (1037, 1047) in operation 1765 when the voltage of the first selection capacitor (1033, 1043) accumulated and charged over a plurality of time intervals is equal to or higher than a specified first threshold voltage (operation 1763-Yes).

[0218] An electronic device (101) according to one embodiment can control a light sensor (240) to connect a second selection capacitor (1037, 1047) to a photodiode (360, 1010, 1020) at operation 1767.

[0219] An electronic device (101) according to one embodiment may receive, in operation 1771, a signal related to a voltage of a second selection capacitor (1037, 1047) that has been accumulated and charged over a specified number of time intervals.

[0220] An electronic device (101) according to one embodiment can identify, in operation 1773, whether the voltage of a second selection capacitor (1037, 1047) accumulated and charged over a plurality of time intervals is less than or equal to a specified second threshold voltage.

[0221] According to one embodiment, the electronic device (101) may obtain data related to illuminance based on a signal related to the voltage of the second selection capacitor (1037, 1047) received in operation 1780, if the voltage of the second selection capacitor (1037, 1047) accumulated and charged over a plurality of time intervals is not lower than a designated second threshold voltage (operation 1773-No).

[0222] According to one embodiment, the electronic device (101) may control the light sensor (240) to discharge at least one of the first selection capacitor (1033, 1043) or the second selection capacitor (1037, 1047) in operation 1775 when the voltage of the second selection capacitor (1037, 1047) accumulated and charged over a plurality of time intervals is lower than or equal to a designated second threshold voltage (operation 1773-Yes).

[0223] According to one embodiment, the electronic device (101) can control the light sensor (240) to connect the first selection capacitor (1033, 1043) to the photodiode (360, 1010, 1020) in operation 1777. According to one embodiment, the electronic device (101) can receive a signal related to the voltage of the first selection capacitor (1033, 1043) accumulated and charged over a plurality of specified time intervals in operation 1761 while controlling the light sensor (240) to connect the first selection capacitor (1033, 1043) to the photodiode (360, 1010, 1020) (after operation 1777).

[0224] An electronic device (101) according to one embodiment can obtain data related to illuminance based on a signal related to the voltage of a received capacitor (1030, 1040, 1033, 1037, 1043, 1047) at operation 1780.

[0225] According to one embodiment, the electronic device (101) can adjust the brightness of the display (220) based on the acquired illuminance-related data in operation 1790.

[0226] FIG. 18A and FIG. 18B are flowcharts (1800A, 1800B) regarding an operating method of a light sensor (240) according to one embodiment of the present disclosure.

[0227] Referring to FIGS. 18A and 18B, the light sensor (240) according to one embodiment may enter a short mode at operation 1810. In the short mode, the light sensor (240) according to one embodiment may receive ambient light for a relatively short period of time to avoid light interference from the display (220), thereby measuring the ambient illuminance.

[0228] According to one embodiment, the light sensor (240) can receive a sync signal related to the timing for controlling on / off of a plurality of pixels (510) from the display driver (230) at operation 1820.

[0229] In one embodiment, the light sensor (240) operates at operation 1830, during a designated scanning operation cycle (t) of the display (220). Duty ) or a signal related to multiple time intervals set based on a specified duty ratio (e.g., the accumulated time of multiple time intervals (T1, T2, T3, T4) ), the period between multiple time intervals (T1, T2, T3, T4) ) and / or the time between the vertical synchronization signal (Vsync) and the first time interval (T1). )) can be received.

[0230] In one embodiment, the light sensor (240) can be controlled to receive light through the photodiode (360, 1010, 1020) in operation 1840. ... during a specified scanning operation cycle (t) of the display (220). Duty) or light can be input through multiple photodiodes (360, 1010, 1020) at multiple time intervals set based on a specified duty ratio.

[0231] According to one embodiment, the light sensor (240) can control the capacitors (1030, 1040, 1033, 1037, 1043, 1047) to be sequentially and cumulatively charged in the first and second sections by the photodiodes (360, 1010, 1020) at operation 1850.

[0232] According to one embodiment, the light sensor (240) can transmit a signal related to a voltage charged in a capacitor (1030, 1040, 1033, 1037, 1043, 1047) electrically connected to a photodiode (360, 1010, 1020) to the processor (210, 120) in operations 1860 and 1870.

[0233] According to one embodiment, the light sensor (240) can transmit a signal related to the voltage charged in the first selection capacitor (1033, 1043) electrically connected to the photodiode (360, 1010, 1020) to the processor (210, 120) at operation 1861.

[0234] According to one embodiment, the light sensor (240) can identify whether it has received a control signal from the processor (210, 120) to connect the second selection capacitor (1037, 1047) to the photodiode (360, 1010, 1020) at operation 1863.

[0235] In one embodiment, the light sensor (240) may enter the long mode in operation 1880 when it does not receive a control signal connecting the second selection capacitor (1037, 1047) to the photodiode (360, 1010, 1020) (operation 1863-No).

[0236] According to one embodiment, when the light sensor (240) receives a control signal for connecting the second selection capacitor (1037, 1047) to the photodiode (360, 1010, 1020) (operation 1863-Yes), in operation 1865, the light sensor (240) can control at least one of the first selection capacitor (1033, 1043) or the second selection capacitor (1037, 1047) to be discharged.

[0237] According to one embodiment, the light sensor (240) can control the second selection capacitor (1037, 1047) to be connected to the photodiode (360, 1010, 1020) in operation 1867.

[0238] According to one embodiment, the light sensor (240) may transmit a signal related to a voltage charged in a second selection capacitor (1037, 1047) electrically connected to a photodiode (360, 1010, 1020) to the processor (210, 120) at operation 1871.

[0239] According to one embodiment, the light sensor (240) can identify whether, at operation 1873, it has received a control signal from the processor (210, 120) to connect the first selection capacitor (1033, 1043) to the photodiode (360, 1010, 1020).

[0240] According to one embodiment, the light sensor (240) may enter the long mode in operation 1880 when it does not receive a control signal connecting the first selection capacitor (1033, 1043) to the photodiode (360, 1010, 1020) (operation 1873-No).

[0241] According to one embodiment, when the light sensor (240) receives a control signal for connecting the first selection capacitor (1033, 1043) to the photodiode (360, 1010, 1020) (operation 1873-Yes), in operation 1875, the light sensor (240) can control at least one of the first selection capacitor (1033, 1043) or the second selection capacitor (1037, 1047) to be discharged.

[0242] According to one embodiment, the light sensor (240) can control the connection of the first selection capacitor (1033, 1043) to the photodiode (360, 1010, 1020) in operation 1877. According to one embodiment, the light sensor (240) can transmit a signal related to the voltage charged in the first selection capacitor (1033, 1043) electrically connected to the photodiode (360, 1010, 1020) to the processor (210, 120) in operation 1861 in a state in which the connection of the first selection capacitor (1033, 1043) to the photodiode (360, 1010, 1020) is controlled (after operation 1877).

[0243] According to one embodiment, the light sensor (240) can transmit a signal related to the voltage charged in the first selection capacitor (1033, 1043) or the second selection capacitor (1037, 1047) to the processor (210, 120) in a state of being controlled in long mode at operation 1890.

[0244] The technical tasks to be achieved in this document are not limited to the technical tasks mentioned above, and other technical tasks not mentioned can be clearly understood by a person having ordinary knowledge in the technical field to which this document belongs from the description below.

[0245] The effects that can be obtained from the present disclosure are not limited to the effects mentioned above, and other effects that are not mentioned can be clearly understood by a person having ordinary skill in the art to which the present disclosure belongs from the description below.

[0246] An electronic device (101) according to one embodiment of the present disclosure comprises a display (220) that displays a screen visually exposed to the front through at least a portion of a panel including a plurality of pixels (510), and a designated scanning operation cycle (t Duty ) or a display driver (230) configured to control on / off the plurality of pixels (510) of the display (220) based on a specified duty ratio, a light sensor (240) including a photodiode (360, 1010, 1020) positioned at the rear or side of the display (220), a capacitor (1030, 1040, 1033, 1037, 1043, 1047) electrically connected to the photodiode (360, 1010, 1020) and a conversion element (1050, 1060) configured to obtain a signal related to the voltage of the capacitor (1030, 1040, 1033, 1037, 1043, 1047), a memory (130) storing instructions, and at least one processor (210, 120). The above instructions, when executed by the at least one processor (210; 120), cause the electronic device (101) to perform the specified scanning operation cycle (t Duty) or may cause the light sensor (240) to transmit a signal related to a plurality of time intervals set based on the specified duty ratio. The instructions, when executed by the at least one processor (210; 120), may cause the electronic device (101) to check a signal related to the voltage of the capacitor (1030, 1040, 1033, 1037, 1043, 1047) accumulated and charged by the photodiode (360, 1010, 1020) during the plurality of time intervals set, received from the light sensor (240). The above instructions, when executed by the at least one processor (210; 120), may cause the electronic device (101) to obtain data related to illuminance based on a signal related to the voltage of the identified capacitor (1030, 1040, 1033, 1037, 1043, 1047).

[0247] In an electronic device (101) according to one embodiment, the plurality of time intervals may include a plurality of time intervals that are each temporally separated. The instructions cause the electronic device (101) to perform the specified scanning operation cycle (t Duty ) or based on the above-specified duty ratio, the plurality of time intervals may be set to be within the time during which the plurality of pixels (510) are turned off.

[0248] In an electronic device (101) according to one embodiment, the display driver (230) may be configured to transmit a sync signal related to the timing for controlling the on / off of the plurality of pixels (510) to the light sensor (240). The light sensor (240) may cause the photodiode (360, 1010, 1020) to receive light based on the received sync signal.

[0249] In an electronic device (101) according to one embodiment, the plurality of time intervals are the specified scanning operation cycle (t Duty ) may be set to a number of sections less than or equal to the number of on / off repetitions of the plurality of pixels (510). The instructions may cause the electronic device (101) to obtain data related to the illuminance based on a signal related to the voltage of the capacitor (1030, 1040, 1033, 1037, 1043, 1047) that is cumulatively charged during a time period of the set number of sections, at least as part of an operation of obtaining data related to the illuminance.

[0250] In an electronic device (101) according to one embodiment, the plurality of time intervals may include a first interval and a second interval that is subsequent to the first interval. The instructions may cause the electronic device (101) to control the light sensor (240) so that the capacitors (1030, 1040, 1033, 1037, 1043, 1047) are sequentially and cumulatively charged in the first interval and the second interval by the photodiode (360, 1010, 1020).

[0251] In an electronic device (101) according to one embodiment, the capacitor (1030, 1040, 1033, 1037, 1043, 1047) may have a capacitance such that the amount of charge charged in the first section or the second section is greater than the amount of discharge discharged between the first section and the second section.

[0252] In an electronic device (101) according to one embodiment, the capacitors (1030, 1040, 1033, 1037, 1043, 1047) include a first selection capacitor (1033, 1043) and a second selection capacitor (1037, 1047) that can be selectively connected to the photodiode (360, 1010, 1020), and the second selection capacitor (1037, 1047) can have a relatively larger charge capacity than the first selection capacitor (1033, 1043). The above instructions may cause the electronic device (101) to, at least as part of the operation of checking a signal related to a voltage of the capacitor (1030, 1040, 1033, 1037, 1043, 1047), check a signal related to a voltage charged in either the first selection capacitor (1033, 1043) or the second selection capacitor (1037, 1047) electrically connected to the photodiode (360, 1010, 1020). The above instructions may cause the electronic device (101) to control the light sensor (240) to change the capacitor (1030, 1040, 1033, 1037, 1043, 1047) connected to the photodiode (360, 1010, 1020) based on a signal related to the voltage charged in either the first selection capacitor (1033, 1043) or the second selection capacitor (1037, 1047) identified above.

[0253] In an electronic device (101) according to one embodiment, the instructions control the light sensor (240) so that the capacitor (1030, 1040, 1033, 1037, 1043, 1047) connected to the photodiode (360, 1010, 1020) is changed, at least as a part of the operation of controlling the light sensor (240), so that when the voltage of the first selection capacitor (1033, 1043) accumulated and charged during the plurality of time intervals while the photodiode (360, 1010, 1020) is electrically connected to the first selection capacitor (1033, 1043) is equal to or higher than a designated first threshold voltage, the light sensor (240) is controlled so that the second selection capacitor (1037, 1047) is connected to the photodiode (360, 1010, 1020). It can cause.

[0254] In an electronic device (101) according to one embodiment, the instructions control the light sensor (240) to change the capacitor (1030, 1040, 1033, 1037, 1043, 1047) connected to the photodiode (360, 1010, 1020), at least as a part of the operation of controlling the light sensor (240) to change the capacitor (1030, 1040, 1033, 1037, 1043, 1047) connected to the photodiode (360, 1010, 1020), when the voltage of the second selection capacitor (1037, 1047) accumulated and charged during the plurality of time intervals while the photodiode (360, 1010, 1020) is electrically connected to the second selection capacitor (1037, 1047) is lower than or equal to a designated second threshold voltage, to control the light sensor (240) to connect the first selection capacitor (1033, 1043) to the photodiode (360, 1010, 1020). It can cause.

[0255] In an electronic device (101) according to one embodiment, the instructions may cause the electronic device (101) to control the light sensor (240) to discharge at least one of the first selection capacitor (1033, 1043) or the second selection capacitor (1037, 1047) that has been accumulated and charged during the plurality of time intervals prior to changing the capacitor (1030, 1040, 1033, 1037, 1043, 1047) connected to the photodiode (360, 1010, 1020) as at least part of an operation of controlling the light sensor (240) to change the capacitor (1030, 1040, 1033, 1037, 1043, 1047) connected to the photodiode (360, 1010, 1020).

[0256] In an electronic device (101) according to one embodiment, the instructions may cause the electronic device (101) to adjust the brightness of the screen displayed on the display (220) based on the acquired data related to the illuminance.

[0257] The method of operating an electronic device (101) according to one embodiment of the present disclosure comprises: a specified scanning operation cycle (t) of a display (220) Duty) or may include an operation of transmitting a signal related to a plurality of time intervals set based on a specified duty ratio to the light sensor (240). The display (220) may include a plurality of pixels (510). An operating method of an electronic device (101) according to an embodiment may include an operation of checking a signal related to a voltage of a capacitor (1030, 1040, 1033, 1037, 1043, 1047) that is accumulated and charged during a plurality of time intervals specified by a photodiode (360, 1010, 1020) and received from the light sensor (240). The capacitor (1030, 1040, 1033, 1037, 1043, 1047) may be electrically connected to the photodiode (360, 1010, 1020). A method of operating an electronic device (101) according to one embodiment may include an operation of obtaining data related to illuminance based on a signal related to the voltage of the capacitor (1030, 1040, 1033, 1037, 1043, 1047) confirmed above.

[0258] In an operating method of an electronic device (101) according to one embodiment, the plurality of time intervals may include a plurality of time intervals that are each temporally separated. In an operating method of an electronic device (101) according to one embodiment, the specified scanning operation cycle (t Duty ) or based on the above-specified duty ratio, the operation may further include setting the plurality of time intervals to be within the time during which the plurality of pixels (510) are turned off.

[0259] The operating method of an electronic device (101) according to one embodiment is the above-mentioned scanning operation cycle (t Duty) or based on the specified duty ratio, the display driver (230) configured to control the plurality of pixels (510) on / off may include an operation of transmitting a sync signal related to the timing of controlling the plurality of pixels (510) on / off to the light sensor (240). An operating method of an electronic device (101) according to an embodiment may include an operation of controlling the light sensor (240) to receive light through the photodiode (360, 1010, 1020) based on the received sync signal.

[0260] In an operating method of an electronic device (101) according to one embodiment, the plurality of time intervals are the specified scanning operation cycle (t Duty ) may be set to a number of sections less than or equal to the number of on / off repetitions of the plurality of pixels (510). In the operating method of the electronic device (101) according to one embodiment, the operation of acquiring data related to the illuminance may acquire data related to the illuminance based on a signal related to the voltage of the capacitor (1030, 1040, 1033, 1037, 1043, 1047) that is accumulated and charged during a time section of the set number of sections.

[0261] In an operating method of an electronic device (101) according to one embodiment, the plurality of time intervals may include a first interval and a second interval that is subsequent to the first interval. The operating method of an electronic device (101) according to one embodiment may further include an operation of controlling the light sensor (240) so that the capacitor (1030, 1040, 1033, 1037, 1043, 1047) is sequentially and cumulatively charged in the first interval and the second interval by the photodiode (360, 1010, 1020).

[0262] In an operating method of an electronic device (101) according to one embodiment, the capacitors (1030, 1040, 1033, 1037, 1043, 1047) include a first selection capacitor (1033, 1043) and a second selection capacitor (1037, 1047) that can be selectively connected to the photodiode (360, 1010, 1020), and the second selection capacitor (1037, 1047) can have a relatively larger charge capacity than the first selection capacitor (1033, 1043). In an operating method of an electronic device (101) according to one embodiment, the operation of checking a signal related to the voltage of the capacitor (1030, 1040, 1033, 1037, 1043, 1047) includes: an operation of checking a signal related to the voltage charged in one of the first selection capacitor (1033, 1043) or the second selection capacitor (1037, 1047) electrically connected to the photodiode (360, 1010, 1020), and an operation of checking a signal related to the voltage charged in one of the first selection capacitor (1033, 1043) or the second selection capacitor (1037, 1047) electrically connected to the photodiode (360, 1010, 1020), and based on the signal related to the voltage charged in one of the first selection capacitor (1033, 1043) or the second selection capacitor (1037, 1047) 1047) may include an operation for controlling the light sensor (240) so that the light sensor (240) is changed.

[0263] In an operating method of an electronic device (101) according to one embodiment, an operation of controlling the light sensor (240) so that a capacitor (1030, 1040, 1033, 1037, 1043, 1047) connected to the photodiode (360, 1010, 1020) is changed may include an operation of controlling the light sensor (240) so that the second selection capacitor (1037, 1047) is connected to the photodiode (360, 1010, 1020) when the voltage of the first selection capacitor (1033, 1043) accumulated and charged during the plurality of time intervals is equal to or higher than a designated first threshold voltage while the photodiode (360, 1010, 1020) is electrically connected to the first selection capacitor (1033, 1043).

[0264] In an operating method of an electronic device (101) according to one embodiment, an operation of controlling the light sensor (240) so that the capacitor (1030, 1040, 1033, 1037, 1043, 1047) connected to the photodiode (360, 1010, 1020) is changed may be performed by controlling the light sensor (240) so that the first selection capacitor (1033, 1043) is connected to the photodiode (360, 1010, 1020) when the voltage of the second selection capacitor (1037, 1047) accumulated and charged during the plurality of time intervals is lower than or equal to a designated second threshold voltage while the photodiode (360, 1010, 1020) is electrically connected to the second selection capacitor (1037, 1047).

[0265] In an operating method of an electronic device (101) according to one embodiment, an operation of controlling the light sensor (240) so that the capacitor (1030, 1040, 1033, 1037, 1043, 1047) connected to the photodiode (360, 1010, 1020) is changed may include an operation of controlling the light sensor (240) so that at least one of the first selection capacitor (1033, 1043) or the second selection capacitor (1037, 1047) that has been accumulated and charged during the plurality of time intervals is discharged before changing the capacitor (1030, 1040, 1033, 1037, 1043, 1047) connected to the photodiode (360, 1010, 1020).

[0266] In a storage medium storing computer-readable instructions according to one embodiment of the present disclosure, the instructions, when executed by at least one processor (210; 120) of an electronic device (101), cause the electronic device (101) to transmit a signal related to a plurality of time intervals set based on a specified scanning operation cycle or a specified duty ratio of a display (220) to a light sensor (240), wherein the display (220) may include a plurality of pixels (510). The above instructions, when executed by at least one processor (210; 120) of the electronic device (101), cause the electronic device (101) to check a signal related to the voltage of a capacitor (1030, 1040, 1033, 1037, 1043, 1047) that has been accumulated and charged for a plurality of time intervals designated by a photodiode (360; 1010, 1020) received from the light sensor (240), and the capacitor (1030, 1040, 1033, 1037, 1043, 1047) can be electrically connected to the photodiode (360; 1010, 1020). The above instructions, when executed by at least one processor (210; 120) of the electronic device (101), cause the electronic device (101) to check a signal related to the voltage of a capacitor (1030, 1040, 1033, 1037, 1043, 1047) that has been accumulated and charged for a plurality of time intervals designated by a photodiode (360; 1010, 1020). The device (101) can be caused to acquire data related to illuminance based on a signal related to the voltage of the capacitor (1030, 1040, 1033, 1037, 1043, 1047) identified above.

[0267] Electronic devices according to the 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 disclosed in this document are not limited to the aforementioned devices.

[0268] The embodiments of this document and the terminology used herein 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 (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.

[0269] The term "module" used in the 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).

[0270] One embodiment 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 (e.g., a processor (120)) of the 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.

[0271] According to one embodiment, the method according to one embodiment disclosed in this 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 the memory of a manufacturer's server, an application store's server, or an intermediary server.

[0272] According to one embodiment, 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 arranged in other components. According to one embodiment, 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 this 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 one embodiment, 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 electronic device (101), A display (220) for displaying a screen visually exposed to the front through at least a portion of a panel including a plurality of pixels (510); A display driver (230) set to control on / off the plurality of pixels (510) of the display (220) based on a specified scanning operation cycle or a specified duty ratio; A light sensor (240) including a photodiode (360; 1010, 1020) positioned at the rear or side of the display (220), a capacitor (1030, 1040, 1033, 1037, 1043, 1047) electrically connected to the photodiode (360; 1010, 1020), and a conversion element (1050, 1060) set to obtain a signal related to the voltage of the capacitor (1030, 1040, 1033, 1037, 1043, 1047); Memory (130) for storing instructions; and comprising at least one processor (210; 120), The above instructions, when executed by the at least one processor (210; 120), cause the electronic device (101) to: Transmitting a signal related to a plurality of time intervals set based on the above-mentioned specified scanning operation cycle or the above-mentioned specified duty ratio to the light sensor (240), Checking a signal related to the voltage of the capacitor (1030, 1040, 1033, 1037, 1043, 1047) accumulated and charged during the plurality of time intervals set by the photo diode (360; 1010, 1020) received from the light sensor (240), Based on the signal related to the voltage of the capacitor (1030, 1040, 1033, 1037, 1043, 1047) confirmed above, causing data related to the illuminance to be acquired, Electronic devices (101).

2. In paragraph 1, The above multiple time intervals include multiple time intervals that are each temporally separated, The above instructions cause the electronic device (101) to: Causing each of the plurality of time intervals to be set within a time period during which the plurality of pixels (510) are turned off, based on the above-mentioned specified scanning operation cycle or the above-mentioned specified duty ratio. Electronic devices (101).

3. In paragraph 2, The above display driver (230) is set to transmit a sync signal related to the timing of turning on / off the plurality of pixels (510) to the light sensor (240). The above light sensor (240) is set to receive light through the photodiode (360; 1010, 1020) based on the received sync signal. Electronic devices (101).

4. In any one of paragraphs 1 to 3, The above multiple time intervals are set to a number of intervals less than or equal to the number of on / off repetitions of the above multiple pixels (510) in the above specified scanning operation cycle, The above instructions cause the electronic device (101) to: At least as part of the operation of acquiring data related to the above illuminance, causing the acquisition of data related to the illuminance based on a signal related to the voltage of the capacitor (1030, 1040, 1033, 1037, 1043, 1047) accumulated and charged during a time interval of the set number of intervals. Electronic devices (101).

5. In any one of paragraphs 1 to 4, The above multiple time intervals include a first interval and a second interval that is subsequent to the first interval, The above instructions cause the electronic device (101) to: Causing the light sensor (240) to be controlled so that the capacitors (1030, 1040, 1033, 1037, 1043, 1047) are sequentially and cumulatively charged in the first section and the second section by the photo diode (360; 1010, 1020). Electronic devices (101).

6. In paragraph 5, The above capacitors (1030, 1040, 1033, 1037, 1043, 1047) have a capacitance such that the amount of charge charged in the first section or the second section, respectively, is greater than the amount of discharge discharged between the first section and the second section. Electronic devices (101).

7. In any one of paragraphs 1 to 6, The above capacitors (1030, 1040, 1033, 1037, 1043, 1047) include a first selection capacitor (1033, 1043) and a second selection capacitor (1037, 1047) that can be selectively connected to the photodiode (360; 1010, 1020), and the second selection capacitor (1037, 1047) has a relatively larger charge capacity than the first selection capacitor (1033, 1043). The above instructions cause the electronic device (101) to: As at least a part of the operation of checking a signal related to a voltage of the capacitor (1030, 1040, 1033, 1037, 1043, 1047), checking a signal related to a voltage charged in either the first selection capacitor (1033, 1043) or the second selection capacitor (1037, 1047) electrically connected to the photodiode (360; 1010, 1020), Controlling the light sensor (240) so that the capacitor (1030, 1040, 1033, 1037, 1043, 1047) connected to the photodiode (360; 1010, 1020) is changed based on a signal related to the voltage charged in either the first selection capacitor (1033, 1043) or the second selection capacitor (1037, 1047) confirmed above, Electronic devices (101).

8. In paragraph 7, The above instructions cause the electronic device (101) to: As at least a part of the operation of controlling the light sensor (240) so that the capacitor (1030, 1040, 1033, 1037, 1043, 1047) connected to the photo diode (360; 1010, 1020) is changed, when the voltage of the first selection capacitor (1033, 1043) accumulated and charged during the plurality of time intervals while the photo diode (360; 1010, 1020) is electrically connected to the first selection capacitor (1033, 1043) is equal to or higher than a designated first threshold voltage, causing the light sensor (240) to be controlled so that the second selection capacitor (1037, 1047) is connected to the photo diode (360; 1010, 1020). Electronic device (101).

9. In any one of paragraphs 7 to 8, The above instructions cause the electronic device (101) to: As at least a part of the operation of controlling the light sensor (240) so that the capacitor (1030, 1040, 1033, 1037, 1043, 1047) connected to the photo diode (360; 1010, 1020) is changed, when the voltage of the second selection capacitor (1037, 1047) accumulated and charged during the plurality of time intervals while the photo diode (360; 1010, 1020) is electrically connected to the second selection capacitor (1037, 1047) is lower than or equal to a designated second threshold voltage, causing the light sensor (240) to be controlled so that the first selection capacitor (1033, 1043) is connected to the photo diode (360; 1010, 1020). Electronic device (101).

10. In any one of paragraphs 7 to 9, The above instructions cause the electronic device (101) to: As at least a part of the operation of controlling the light sensor (240) so that the capacitor (1030, 1040, 1033, 1037, 1043, 1047) connected to the photo diode (360; 1010, 1020) is changed, causing the light sensor (240) to be controlled so that at least one of the first selection capacitor (1033, 1043) or the second selection capacitor (1037, 1047) that has been accumulated and charged during the plurality of time intervals is discharged before changing the capacitor (1030, 1040, 1033, 1037, 1043, 1047) connected to the photo diode (360; 1010, 1020). Electronic device (101).

11. In any one of paragraphs 1 to 10, The above instructions cause the electronic device (101) to: Based on the data related to the acquired illuminance, causing the brightness of the screen displayed on the display (220) to be adjusted. Electronic device (101).

12. In the operating method of an electronic device (101), An operation of transmitting a signal related to a plurality of time intervals set based on a specified scanning operation cycle or a specified duty ratio of a display (220) to a light sensor (240), wherein the display (220) includes a plurality of pixels (510); An operation of checking a signal related to the voltage of a capacitor (1030, 1040, 1033, 1037, 1043, 1047) accumulated and charged for a plurality of time intervals designated by a photo diode (360; 1010, 1020) received from the above light sensor (240), the capacitor (1030, 1040, 1033, 1037, 1043, 1047) being electrically connected to the photo diode (360; 1010, 1020); and An operation of acquiring data related to illuminance based on a signal related to the voltage of the capacitor (1030, 1040, 1033, 1037, 1043, 1047) confirmed above, How it works.

13. In paragraph 12, The above multiple time intervals include multiple time intervals that are each temporally separated, Further comprising an operation of setting each of the plurality of time intervals to within a time during which the plurality of pixels (510) are turned off, based on the above-mentioned specified scanning operation cycle or the above-mentioned specified duty ratio. How it works.

14. In paragraph 13, An operation of transmitting a sync signal related to the timing of controlling the plurality of pixels (510) on / off to the light sensor (240) through a display driver (230) set to control the plurality of pixels (510) on / off based on the above-mentioned specified scanning operation cycle or the above-mentioned specified duty ratio; and Further comprising an operation of controlling the light sensor (240) to receive light through the photodiode (360; 1010, 1020) based on the received sync signal. How it works.

15. In a storage medium storing computer-readable instructions, the instructions, when executed by at least one processor (210; 120) of an electronic device (101), cause the electronic device (101) to: A display (220) transmits a signal related to a plurality of time intervals set based on a specified scanning operation cycle or a specified duty ratio to a light sensor (240), wherein the display (220) includes a plurality of pixels (510). A signal related to the voltage of a capacitor (1030, 1040, 1033, 1037, 1043, 1047) that is accumulated and charged during a plurality of time intervals designated by a photo diode (360; 1010, 1020) received from the above light sensor (240) is checked, and the capacitor (1030, 1040, 1033, 1037, 1043, 1047) is electrically connected to the photo diode (360; 1010, 1020). Based on the signal related to the voltage of the capacitor (1030, 1040, 1033, 1037, 1043, 1047) confirmed above, causing data related to the illuminance to be acquired, Storage medium.

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