Patent Description:
With the growth of information telecommunication technologies and semiconductor technologies, various electronic devices are developing into multimedia devices providing various multimedia services. For example, the multimedia service can include at least one of a voice call service, a message service, a broadcasting service, a wireless Internet service, a camera service, and a music play service.

As the multimedia services of the electronic device become diversified, private information stored in the electronic device is increasing. The electronic device can provide an authentication service for protecting the private information stored in the electronic device from others. For example, the electronic device can provide an authentication service (e.g., a biometric recognition service) that utilizes biometric information such as an iris, a fingerprint, a face, a palm line, a vein, etc. <CIT> concerns systems and methods for optical imaging. An electronic device for imaging an input object includes a display comprising a sensing surface and an array of display pixels. The electronic device also includes a processing system communicatively coupled to the display, the processing system configured to: selectively illuminate one or more of the display pixels according to a pattern; acquire image data, from one or more detector pixels of the display, of the input object in contact with the sensing surface, wherein the image data corresponds to light from the illuminated display pixels that is reflected at the sensing surface of the display; and process an image of the input object from the image data based upon the pattern. <CIT> methods and systems using a micro light emitting diode (LED) in an active matrix display to emit light and a sensing IR diode to sense light. A display panel includes a display substrate having a display region, an array of subpixel circuits, and an array of selection devices. Each subpixel circuit includes a driving circuit to operate a corresponding infrared (IR) emitting LED in a light emission mode. Each selection device may be coupled to a corresponding sensing IR diode to operate the corresponding sensing IR diode in a light sensing mode.

An electronic device can obtain a fingerprint image for user authentication using a fingerprint scan sensor operatively coupled to the electronic device. The fingerprint scan sensor can divide a ridge and valley of the human body who gets in contact with the fingerprint scan sensor, to obtain the fingerprint image. The electronic device can authenticate a user, based on a similarity between the fingerprint image obtained through the fingerprint scan sensor and a predefined reference fingerprint image.

However, there can be a problem in which the fingerprint scan sensor cannot distinguish a fingerprint cloned using a substance having a similar external shape or character to the skin of the human body.

Various embodiments may provide an apparatus and method for improving an accuracy of authentication of biometric information in an electronic device. According to an aspect of the invention an electronic device is provided according to claim <NUM>. According to further aspect of the invention a method of operating an electronic device is provided according to claim <NUM>.

The above and other aspects, features, and advantages of certain embodiments will be more apparent from the following detailed description, taken in conjunction with the accompanying drawings, in which:.

Various example embodiments are described below in greater detail with reference to the accompanying drawings. In describing various embodiments, related well-known functions or constructions may not described in detail if they obscure the gist with unnecessary detail. The terms described below are defined considering functions, and may be modified in accordance to user and operator's intention or practice. Therefore, the definition is based on the content of the description.

<FIG> is a diagram illustrating a perspective view of an electronic device according to various embodiments.

Referring to <FIG>, the electronic device <NUM> includes a housing <NUM>. For example, the housing <NUM> may be formed of a conductive member and/or nonconductive member.

According to an embodiment, the housing <NUM> includes a first surface <NUM> (e.g., a front surface or top surface) facing a first direction (e.g., a Z-axis direction), a second surface <NUM> (e.g., a rear surface or bottom surface) disposed in a direction of oppositely facing the first surface <NUM>, and a side surface <NUM> disposed surrounding at least a part of the first surface <NUM> and second surface <NUM>. For example, the side surface <NUM> is coupled with a front plate <NUM> and a rear plate, and is formed to have a side bezel structure <NUM> including metal and/or polymer.

According to an embodiment, the electronic device <NUM> includes the front plate <NUM> (e.g., a window or glass plate) disposed in the first surface <NUM>, and is disposed to expose a display <NUM> through a first region (A1) of the front plate <NUM>.

According to an embodiment, the electronic device <NUM> includes a call receiver hole <NUM>. For example, the electronic device <NUM> may be controlled to use a speaker disposed therein and make a call with a counterpart through the call receiver hole <NUM>.

According to an embodiment, the electronic device <NUM> includes a microphone hole <NUM>. For example, the electronic device <NUM> may use at least one microphone capable of being disposed therein and sensing a direction of sound and may receive an external sound through the microphone hole <NUM> or transmit a voice of a user to a counterpart.

According to an embodiment, the electronic device <NUM> includes at least one key input device <NUM>. For example, the key input device <NUM> includes at least one side key button <NUM> disposed in the side surface <NUM> of the housing <NUM>. The at least one side key button <NUM> may include, for example, and without limitation, a volume adjustment button, a power button or a specific function (e.g., artificial intelligence execution function, fast voice recognition execution mode enable function, or the like. ) execution button, or the like.

According to an embodiment, the electronic device <NUM> may include components that are disposed in a scheme of being exposed to the display <NUM>, or performing a function through the front plate <NUM> but not being exposed, to perform various functions of the electronic device <NUM>. For example, at least some of the components may be disposed through a second region (A2) of the front plate <NUM>. For example, the components include at least one sensor module <NUM>. For example, the sensor module <NUM> may include an illuminance sensor (e.g., light sensor), a proximity sensor (e.g., a light sensor), an infrared ray sensor, an ultrasonic sensor, a fingerprint scan sensor, a face recognition sensor, or an iris scan sensor, or the like, but is not limited thereto. For example, the component includes a first camera device <NUM>. For example, the component includes an indicator <NUM> (e.g., a light emitting diode (LED) device, or the like) for visually providing state information of the electronic device <NUM> to a user. For example, the component includes a light source <NUM> (e.g., infrared ray LED, or the like) disposed at one side of the receiver <NUM>. For example, the component includes an imaging sensor assembly <NUM> (e.g., an iris camera, or the like) for obtaining an iris image in a state where light provided from the light source <NUM> is irradiated around user's eyes. For instance, at least one of the components may be disposed to be exposed through at least a partial region of the second surface <NUM> (e.g., rear surface or back surface) facing a direction (e.g., -Z-axis direction) oppositely facing the first direction of the electronic device <NUM> as well.

According to an embodiment, the electronic device <NUM> includes an external speaker hole <NUM>. According to an embodiment, the electronic device <NUM> may use a speaker disposed therein, and emit sound through the external speaker hole <NUM>. According to an embodiment, the electronic device <NUM> includes a first connector hole <NUM> (e.g., interface connector port, or the like) for performing a function of data transmission/reception with an external device and receiving external power to charge the electronic device <NUM>. According to an embodiment, the electronic device <NUM> includes a second connector hole <NUM> (e.g., ear jack assembly, or the like) for housing an ear jack of the external device.

The display <NUM> is used for data output, and as an obtaining member (e.g., circuitry) for obtaining biometric information. For example, the display <NUM> may be used as a fingerprint recognition sensor for obtaining a fingerprint image of a user. In this case, the whole region (A1 region) of the display <NUM> may be utilized as a region for fingerprint recognition. Accordingly, in response to the display <NUM> being used for a fingerprint recognition function, a fingerprint may be recognized even if the user makes contact with any region among the display region (A1 region). For example, it may be utilized as a medical sensor for measuring biometric information (e.g., a fingerprint image, a blood flow rate, or the like, but is not limited thereto) of the human body that makes contact with the display <NUM> using, as a light source, at least one sub pixel included in each pixel of the display <NUM>.

According to an embodiment, the display <NUM> includes the front plate <NUM> disposed to be exposed through at least a partial region of the first surface <NUM> of the electronic device <NUM>. For example, the display <NUM> may include a touch panel and a display panel which may, for example, be sequentially laminated on a rear surface of the front plate <NUM>. For example, an image displayed through the display panel may be provided to a user through the front plate <NUM> of transparent materials. For example, the front plate <NUM> may use various materials such as transparent glass, acryl, or the like. For example, the display <NUM> may obtain a fingerprint image, based on a value obtained through an image sensor disposed in a rear surface of the display panel. For example, the display <NUM> may obtain a fingerprint image, based on a value obtained through a light receiving module (e.g., photodiode, or the like) disposed in at least one pixel of the display panel.

<FIG> is a block diagram illustrating an electronic device according to various embodiments. In the following description, the electronic device <NUM> may include the whole or at least part of the electronic device <NUM> of <FIG>.

Referring to <FIG>, the electronic device <NUM> includes a bus <NUM>, a processor (e.g., including processing circuitry) <NUM>, a memory <NUM>, an input output interface (e.g., including input/output circuitry) <NUM>, a display device <NUM>, and a communication module (e.g., including communication circuitry) <NUM>. In an example embodiment, the electronic device <NUM> may omit at least one of the elements or additionally have another element.

The bus <NUM> may, for example, include circuitry coupling the elements <NUM> to <NUM> with one another and forwarding a signal (e.g., a control message and/or data) between the elements.

The processor <NUM> may execute operation or data processing for control and/or communication of at least one other element of the electronic device <NUM>. For example, the processor <NUM> may include various processing circuitry, such as, for example, and without limitation, one or more of a dedicated processor, a central processing unit (CPU), an application processor (AP), a communication processor (CP) and/or an image signal processor (ISP), or the like.

According to an embodiment, the processor <NUM> obtains biometric information through the display device <NUM>. The processor <NUM> controls the display device <NUM> to emit light from at least one sub pixel corresponding to biometric information intended to be obtained in the electronic device <NUM> among a plurality of sub pixels (e.g., RGB, RGBG) of, for example, each pixel of the display device <NUM>. The processor <NUM> may obtain the biometric information using reflected light collected through the display device <NUM>. The biometric information includes a fingerprint, and without limitation may include at least one of a heartbeat, a stress index, an oxygen saturation, a blood pressure, a blood glucose and/or a skin tone, or the like. As an example, the processor <NUM> may identify the biometric information for obtaining from an external object, based on the situation information related with the external object. For example, the situation information related with the external object may include at least one of proximity or non-proximity of the external object and the electronic device, an application that is being executed in the electronic device at a timing for obtaining biometric information of the external object, and/or a user interface displayed on a display device.

According to an embodiment, the processor <NUM> may control to output light through a mutually different pixel set at a mutually different timing. For example, the processor <NUM> may control the display device <NUM> to output light of first properties through a first pixel set at a timing for obtaining first biometric information. The processor <NUM> may obtain the first biometric information, based on reflected light collected through the display device <NUM>. For example, the processor <NUM> may control the display device <NUM> to output light of second properties through a second pixel set at a timing for obtaining second biometric information. The processor <NUM> may obtain the second biometric information, based on reflected light collected through the display device <NUM>. As an example, the timing for obtaining each biometric information may be repeated cyclically during a biometric information obtaining duration. The pixel set includes at least one, necessary for obtaining biometric information, among a plurality of sub pixels of a pixel and a light emitting module (e.g., infrared ray sensor) disposed in at least one pixel. For instance, the pixel set may, for example, and without limitation, be configured as in Table <NUM> below.

The processor <NUM> controls to output light through a mutually different pixel set in a mutually different region among a contact region of the display device <NUM>. The processor <NUM> controls the display device <NUM> to output light of first properties through a first pixel set in a first region (e.g., a central region, or the like) among the contact region. The processor <NUM> may obtain first biometric information (fingerprint image), based on reflected light corresponding to the light of the first properties collected through the display device <NUM>. The processor <NUM> controls the display device <NUM> to output light of second properties through a second pixel set in a second region (e.g., an edge region, or the like). The processor <NUM> may obtain the second biometric information, based on reflected light corresponding to the light of the second properties collected through the display device <NUM>. As an example, the contact region may include at least a partial region, which the user's human body makes contact with, of the display device <NUM>.

According to an embodiment, the processor <NUM> performs a user authentication procedure using biometric information obtained through the display device <NUM>. For example, the processor <NUM> may perform an authentication procedure for a user using first biometric information (a fingerprint image). In response to the processor <NUM> succeeding in authenticating the user using the first biometric information, the processor <NUM> may perform the authentication procedure for the user using second biometric information. In response to the processor <NUM> succeeding in authenticating the user using the first biometric information and the second biometric information, the processor <NUM> may identify (determine) that the authentication procedure for the user has been completed.

According to an embodiment, the processor <NUM> may adaptively store biometric information obtained through the display device <NUM>, based on user authentication information. For example, the processor <NUM> may measure health information through the display device <NUM>, while collecting fingerprint information. In response to the processor <NUM> succeeding in user authentication using the fingerprint information, the processor <NUM> may control the memory <NUM> to store the health information as information of a corresponding user. In response to the processor <NUM> failing in the user authentication by the fingerprint information, the processor <NUM> may control the memory <NUM> to store the health information as general information. As an example, in response to the processor <NUM> succeeding in the user authentication, the processor <NUM> may control the memory <NUM> to store the health information. As an example, the health information may include information representing a user's health state such as, for example, and without limitation, a heartbeat, a stress index, a blood glucose, a blood pressure, an oxygen saturation, or the like.

The memory <NUM> may include a volatile and/or non-volatile memory. For example, the memory <NUM> may store a command or data related to at least one other element of the electronic device <NUM>. The data may include reference biometric information (e.g., a fingerprint image, a biometric change pattern, etc.) defined for user authentication.

The input output interface <NUM> may forward a command or data inputted from a user or another external device, to the other element(s) of the electronic device <NUM>. For example, the input output interface <NUM> may include various input/output circuitry, such as, for example, and without limitation, at least one physical button such as a home button, a power button, a volume control button or the like. The input output interface <NUM> may output a command or data received from the other element(s) of the electronic device <NUM>, to the user or another external device. For example, the input output interface <NUM> may include a speaker for outputting an audio signal and a microphone for collecting an audio signal.

The display device <NUM> (e.g., the display) may display various contents (e.g., a text, an image, a video, an icon, a symbol and/or the like) to a user. For example, the display device <NUM> may include a touch screen. The display device <NUM> may receive a touch, gesture, proximity or hovering input that utilizes an electronic pen or a part of a user's human body.

According to an embodiment, the display device <NUM> may obtain biometric information about a part of the human body of a user that makes contact with the display device <NUM>. The display device <NUM> outputs light through at least one sub pixel corresponding to biometric information for obtaining from the electronic device <NUM> among a plurality of sub pixels (red, green, blue, and IR) of at least one pixel of the display device <NUM>. The display device <NUM> may collect light reflected from a part of the human body through a light receiving module, to obtain biometric information (e.g., fingerprint image, or the like) of a user.

The communication module <NUM> (e.g., communication interface) may include various communication circuitry and establish communication between the electronic device <NUM> and an external device (e.g., a first external electronic device <NUM>, a second external electronic device <NUM>, or a server <NUM>). For example, the communication module <NUM> may be coupled to a network <NUM> through wireless communication or wired communication, to communicate with the external device (e.g., the second external electronic device <NUM> or the server <NUM>). For example, the communication module <NUM> may communicate with the external device (e.g., the first external electronic device <NUM>) through short range communication <NUM>.

<FIG>, <FIG>, <FIG>, <FIG> and <FIG> are diagrams illustrating a schematic structure of a display device according to various embodiments. In the following description, the display device <NUM> may include the whole or at least part of the display device <NUM> of <FIG>.

As illustrated in <FIG>, the display device <NUM> includes a plurality of pixels. Each pixel <NUM> may include a first sub pixel <NUM> outputting light of a first color, a second sub pixel <NUM> outputting light of a second color, a third sub pixel <NUM> outputting light of a third color, and a light receiving module (e.g., including light receiving circuitry) <NUM> receiving external light. As an example, the display device <NUM> may obtain biometric information in the whole region of the display device <NUM>. As an example, the display device <NUM> may control the light receiving module <NUM> of each pixel <NUM> to obtain biometric information in a partial region of the display device <NUM>. For instance, the display device <NUM> may activate the light receiving module <NUM> of the pixel <NUM> disposed in a biometric information obtaining region, and inactivate a light receiving module <NUM> of a pixel disposed in the remnant region.

According to an embodiment, the plurality of pixels may be arranged in a matrix form, and the number of pixels disposed in a first direction (X) and a second direction (Y) may be identified according to a resolution of the display device <NUM>. For instance, the first direction (X) may, for example, be a long side direction of the display device <NUM>, and the second direction (Y) may, for example, be a short side direction of the display device <NUM> that is substantially vertical to the first direction (X).

According to an embodiment, the first sub pixel <NUM> to third sub pixel <NUM> may output light of mutually different first color to third color. For example, referring to <FIG>, the first sub pixel <NUM> may output red (R) light, and the second sub pixel <NUM> may output green (G) light, and the third sub pixel <NUM> may output blue (B) light.

According to an embodiment, at least one sub pixel among the first sub pixel <NUM> to the third sub pixel <NUM> may output infrared light.

According to an embodiment, the display device <NUM> may apply a power source to the first sub pixel <NUM> to third sub pixel <NUM> through a gate driver (or emission driver) <NUM>, to control a light emitting timing of each sub pixel. A data driver <NUM> may provide a data value by each pixel <NUM>, to display natural color and brightness by each pixel <NUM>. Each pixel <NUM> may express natural color by means of the first sub pixel <NUM> to the third sub pixel <NUM>.

According to an embodiment, the light receiving module <NUM> may collect light that is introduced from the external or is reflected from an external object (e.g., a finger, or the like) approaching and/or contacting the display device <NUM>. For example, the light receiving module <NUM> may include a light converting member including circuitry for filtering light of a specific wavelength band and thus, obtain a light quantity of the light of the specific wavelength band filtered through the light converting member. As an example, the light receiving module <NUM> may perform a fingerprint recognition function by obtaining a mutually different light quantity reflected from a ridge of a finger of a user and a valley between the ridges. As an example, the light receiving module <NUM> may perform a biometric recognition function by obtaining a light quantity that is reflected from a blood flow rate of the human body of the user. As an example, as illustrated in <FIG>, the light receiving module <NUM> may include various light receiving circuitry, such as, for example, and without limitation, a photo diode, or the like.

According to an embodiment, the light receiving module <NUM> may recognize light emitting timings of the sub pixels <NUM> to <NUM>, based on power supply information of the gate driver <NUM>. Light information collected in the light receiving module <NUM> may be forwarded to a sensing module (e.g., including light sensing circuitry) <NUM>.

According to an embodiment, as illustrated in <FIG>, the display device <NUM> may include the light receiving modules <NUM> in a part of (or a subset of) a plurality of pixels. For example, the pixel <NUM> included in a partial region set to collect biometric information among the display device <NUM> may include the first sub pixel <NUM>, the second sub pixel <NUM>, the third sub pixel <NUM>, and the light receiving module <NUM>. Whereas, a pixel <NUM> included in the remnant region among the display device <NUM> may include a first sub pixel <NUM>, a second sub pixel <NUM> and a third sub pixel <NUM>.

According to an embodiment, the pixel <NUM> including the light receiving module <NUM> may be disposed adjacently or at a given interval in the whole region or partial region of the display device <NUM>.

According to an embodiment, as illustrated in <FIG>, the display device <NUM> may include a plurality of pixels, and each pixel <NUM> includes the first sub pixel <NUM>, the second sub pixel <NUM> and the third sub pixel <NUM>. The display device <NUM> may include an image sensor <NUM> in a rear surfaces of a pixel disposed in a partial region, which is set to collect biometric information. For example, the image sensor <NUM> may collect light that is reflected from an external object approaching and/or contacting the display device <NUM>. As an example, the image sensor <NUM> may include a light converting member (e.g., including light converting circuitry) for filtering light of a specific wavelength band and thus, obtain the light of the specific wavelength band filtered through the light converting member.

According to an embodiment, the display device <NUM> may independently control each of the first sub pixel <NUM> to third sub pixel <NUM> of each pixel <NUM> through the gate driver <NUM> and the data driver <NUM>. For example, as illustrated in <FIG>, the display device <NUM> may drive the second sub pixel <NUM> and the light receiving module <NUM>, to obtain biometric information (e.g., a heartbeat, or the like). For example, an absorbance of green light (e.g., a wavelength of about <NUM> to <NUM>) by oxyhemoglobin (HbO<NUM>) is high, so the green light may be easy to measure a heartbeat. According to this example, the display device <NUM> may apply a power source through the data driver <NUM> and the gate driver <NUM>, to output the green light through the second sub pixel <NUM>. The display device <NUM> may collect a light quantity reflected from the human body using the light receiving module <NUM>. By analyzing the reflected light quantity collected from the display device <NUM>, the processor <NUM> may obtain heartbeat information <NUM> of a user.

According to various embodiments, a pixel disposed in the display device <NUM> may include a sub pixel of red green blue green (RGBG), red green blue yellow (RGBY) or red green blue white (RGBW) as well.

<FIG> are diagrams illustrating another example of a schematic structure of a display device according to various embodiments. In the following description, the display device <NUM> may include the whole or at least part of the display device <NUM> of <FIG>.

According to an embodiment, as illustrated in <FIG>, the display device <NUM> may include a plurality of pixels. Each pixel <NUM> includes a first sub pixel <NUM>, a second sub pixel <NUM>, a third sub pixel <NUM> and may include an infrared ray sensor <NUM>, and a light receiving module (e.g., including light receiving circuitry) <NUM>. For example, the first sub pixel <NUM> to third sub pixel <NUM> may output light of mutually different first color to third color. As an example, referring to <FIG>, the first sub pixel <NUM> may output red (R) light, and the second sub pixel <NUM> may output green (G) light, and the third sub pixel <NUM> may output blue (B) light.

According to an embodiment, light emitting timings of the first sub pixel <NUM> to third sub pixel <NUM> may be determined and provided by a power source applied through a gate driver <NUM>. The first sub pixel <NUM> to third sub pixel <NUM> may emit light to express a color corresponding to a data value provided by a data driver <NUM>. A light emitting timing of the infrared ray sensor <NUM> may be identified by the gate driver <NUM>, and a light emitting intensity of the infrared ray sensor <NUM> may be identified by the data driver <NUM>.

According to an embodiment, the light receiving module <NUM> may collect light that is introduced from the external or is reflected from an external object (e.g., a finger, or the like) approaching and/or contacting the display device <NUM>. For example, the light receiving module <NUM> may obtain light of a specific wavelength band that is filtered through a light converting member disposed on the light receiving module <NUM>. As an example, as illustrated in <FIG>, the light receiving module <NUM> may include, for example, and without limitation, a photo diode, or the like.

According to an embodiment, as illustrated in <FIG>, the display device <NUM> may include a light receiving module (e.g., including light receiving circuitry) <NUM> in a partial pixel <NUM> among a plurality of pixels. For example, the pixel <NUM> included in a partial region set to collect biometric information among the display device <NUM> may include a first sub pixel <NUM> to third sub pixel <NUM>, an infrared ray sensor <NUM>, and a light receiving module <NUM>. A pixel <NUM> included in the remnant region among the display device <NUM> may include a first sub pixel <NUM> to a third sub pixel <NUM>.

According to an embodiment, as illustrated in <FIG>, a light receiving region of the light receiving module <NUM> may be separated to collect light of a mutually different wavelength. For example, the light receiving module <NUM> may include, for example, and without limitation, a plurality of photo diodes, or the like, configured to collect light of mutually different wavelengths. For example, each photo diode may include a mutually different light converting member which filters light of a mutually different wavelength band.

According to an embodiment, the pixel <NUM> including the infrared ray sensor <NUM> and the light receiving module <NUM> may be disposed adjacently or at a given interval in the whole region or partial region of the display device <NUM>.

According to an embodiment, as illustrated in <FIG>, the display device <NUM> may collect light reflected from an external object (e.g., a finger, or the like) using an image sensor <NUM>. For example, the display device <NUM> may include the image sensor <NUM> in a rear surface of a pixel disposed in a partial region set to collect biometric information. A pixel <NUM> included in the partial region set to collect the biometric information may include a first sub pixel <NUM> to a third sub pixel <NUM>, and an infrared ray sensor <NUM>. A pixel <NUM> included in the remnant region may include a first sub pixel <NUM> to a third sub pixel <NUM>.

According to an embodiment, the display device <NUM> may independently control each of a first sub pixel <NUM> to third sub pixel <NUM> and infrared ray sensor <NUM> of each pixel <NUM> through a gate driver <NUM> and a data driver <NUM>. For example, as illustrated in <FIG>, the display device <NUM> may drive the first sub pixel <NUM>, the infrared ray sensor <NUM>, and a light receiving module <NUM>, to obtain biometric information (e.g., an oxygen saturation, or the like). For example, the display device <NUM> may apply a power source through the data driver <NUM> and the gate driver <NUM>, to output red light through the first sub pixel <NUM> and the infrared ray sensor <NUM>. The display device <NUM> may collect a light quantity reflected from the human body using the light receiving module <NUM>. The processor <NUM> may analyze the reflected light quantity collected from the display device <NUM>, to obtain an oxygen saturation of a user. The processor <NUM> may measure the oxygen saturation of the user using a difference of absorptances of oxyhemoglobin (HbO<NUM>) <NUM> and hemoglobin (Hb) <NUM>.

According to various embodiments, the electronic device <NUM> may include a light emitting module disposed in another region of a substrate, not the display device <NUM> as well.

An electronic device includes a display configured to include one or more pixels that include a first sub pixel capable of outputting light of a first wavelength range, a second sub pixel capable of outputting light of a second wavelength range, and a third sub pixel capable of outputting light of a third wavelength range, one or more sensors configured to obtain a plurality of biometric information about an external object, and a processor, wherein the processor is configured to cause the electronic device to: identify first biometric information and second biometric information from among the plurality of biometric information, and output light of first properties through a first pixel set corresponding to the first biometric information among the first sub pixel, the second sub pixel, and the third sub pixel, and obtain the first biometric information using the one or more sensors, and output light of second properties through a second pixel set corresponding to the second biometric information among the first sub pixel, the second sub pixel, and the third sub pixel, and obtain the second biometric information using the one or more sensors.

According to various example embodiments, the processor may be configured to cause the electronic device to control the first pixel set and the second pixel set to output light at mutually different timings.

According to various example embodiments, the processor may be configured to cause the electronic device to output light of the first pixel set through at least one pixel included in a first region of the display device, and output light of the second pixel set through at least one pixel included in a second region of the display device.

According to various example embodiments, at least a part of the one or more pixels included in the display device may further include a light emitting unit comprising light emitting circuitry configured to irradiate light of an infrared band, and the first pixel set may include at least one of the first sub pixel, the second sub pixel, the third sub pixel, and the light emitting unit, and the second pixel set may include at least one different from that of the first pixel set among the first sub pixel, the second sub pixel, the third sub pixel, and the light emitting unit.

The processor is configured to cause the electronic device to identify authentication on the external object, based on a similarity between designated first information and the first biometric information and/or a similarity between designated second information and the second biometric information.

According to various example embodiments, the processor may be configured to cause the electronic device to identify (determine) an association between the external object and a user of the electronic device, based on the second biometric information.

According to various example embodiments, the processor may be configured to cause the electronic device to identify (determine) authentication on the external object, based on a change pattern of the second biometric information.

According to various example embodiments, the one or more sensors may be disposed in a partial region of the display device, and/or may be disposed in a rear surface of the display device.

According to various example embodiments, the one or more sensors may further include a light converting member comprising light converting circuitry configured to filter light of a predefined wavelength range.

According to various example embodiments, the processor may be configured to cause the electronic device to: output light of first properties through the first pixel set, and obtain a fingerprint image of the external object, based on light reflected from the external object collected through the one or more sensors.

According to various example embodiments, the first pixel set and the second pixel set may be configured to output light of mutually different wavelength ranges.

<FIG> is a flowchart illustrating a method for obtaining biometric information in an electronic device according to various embodiments. In the following description, the electronic device may include the electronic device <NUM> of <FIG> or at least a part (e.g., the processor <NUM>) of the electronic device <NUM>.

Referring to <FIG>, in operation <NUM>, the electronic device (e.g., the electronic device <NUM> of <FIG>) may identify situation information related with an external object. For example, the situation information related with the external object may include at least one of proximity or non-proximity of the external object and the electronic device, an application that is being executed in the electronic device at a timing for obtaining biometric information of the external object, and/or a user interface displayed on a display device.

In operation <NUM>, the electronic device may identify first biometric information and second biometric information for obtaining from the external object, based on the situation information related with the external object. For example, in response to the electronic device <NUM> being in a locking state and the external object making contact with the display device <NUM>, the processor <NUM> may identify that it obtains a fingerprint image for releasing the locking of the electronic device <NUM> and information for biometric analysis. For instance, the information for the biometric analysis may include at least one biometric information among a heartbeat, a stress index, an oxygen saturation, a blood pressure, a blood glucose, or a skin tone.

In operation <NUM>, the electronic device outputs light of (having) first properties through a first pixel set corresponding to the first biometric information among a plurality of sub pixels included in a pixel, to obtain the first biometric information. Referring to <FIG>, the processor <NUM> controls the display device <NUM> to output light through at least one sub pixel corresponding to the first biometric information among the first sub pixel <NUM>, the second sub pixel <NUM> and the third sub pixel <NUM> which are included in the pixel of the display device <NUM>. The processor <NUM> may obtain the first biometric information using light collected through the light receiving module <NUM> of the display device <NUM>. As an example, the processor <NUM> may control the display device <NUM> to output light of first properties from at least one pixel corresponding to a partial region, which an external object gets in contact with, among the display device <NUM>. The first properties include a wavelength of the light output through the first pixel set.

In operation <NUM>, the electronic device outputs light of (having) second properties through a second pixel set corresponding to second biometric information among a plurality of sub pixels included in a pixel, to obtain the second biometric information. For example, the second pixel set may include a sub pixel different from that of the first pixel set, and the light of the second properties may include light of a wavelength different from that of the light of the first properties.

According to an embodiment, the electronic device (e.g., the electronic device <NUM> of <FIG>) may divide light emitting timings or light emitting regions of the first pixel set and the second pixel set, to obtain the first biometric information and the second biometric information.

According to various example embodiments, the pixel set may include at least one, necessary for obtaining biometric information, among a plurality of sub pixels included in a pixel and light emitting modules (e.g., infrared ray sensors).

<FIG> is a flowchart illustrating a method for dividing a light emitting timing to obtain biometric information in an electronic device according to various embodiments. <FIG> and <FIG> illustrate a light emitting timing of a light source for obtaining the biometric information in the electronic device according to various embodiments. The following description is made for an operation for obtaining the biometric information using a pixel set corresponding to the biometric information as in operation <NUM> to operation <NUM> of <FIG>. In the following description, the electronic device may include the electronic device <NUM> of <FIG> or at least a part (e.g., the processor <NUM>) of the electronic device <NUM>.

Referring to <FIG>, in response to identifying biometric information for obtaining from an external object (e.g., operation <NUM> of <FIG>), in operation <NUM>, the electronic device (e.g., the electronic device <NUM>) may identify obtaining timings of first biometric information and second biometric information. For example, the processor <NUM> may identify that the obtaining timings of the first biometric information and the second biometric information are not duplicated within a biometric information obtaining duration. The biometric information obtaining duration may include a time duration for which the external object maintains a contact with the display device <NUM> for the sake of biometric information obtaining.

In operation <NUM>, the electronic device may identify (determine) whether the obtaining timing of the first biometric information arrives. For example, in response to the external object (e.g., finger) making contact with the display device <NUM>, the processor <NUM> may identify whether the obtaining timing of the first biometric information (e.g., fingerprint) arrives.

In operation <NUM>, in response to receiving the obtaining timing of the first biometric information, the electronic device may output light of first properties through a first pixel set corresponding to the first biometric information. For example, as illustrated in <FIG>, in response to receiving the obtaining timing of the first biometric information (e.g., fingerprint), the processor <NUM> may control to output the light of the first properties through the first pixel set (e.g., the infrared ray sensor <NUM> or the first sub pixel <NUM>). As an example, the processor <NUM> may control to emit light of a first pixel set <NUM> many times at a given period interval during a biometric information obtaining duration.

In operation <NUM>, the electronic device may collect the light of the first properties reflected from the external object, to obtain the first biometric information. For example, the processor <NUM> may control the light receiving module <NUM> of the display device <NUM> to filter the light of the first properties, based on a timing of outputting the light of the first properties. The processor <NUM> may collect the light of the first properties reflected from the external object through the light receiving module <NUM> of the display device <NUM>. As an example, the processor <NUM> may identify a ridge and valley of a finger, based on a light quantity collected through each pixel. The processor <NUM> may obtain a fingerprint image by imaging a pattern of the ridge and valley.

In operation <NUM>, in response to the obtaining timing of the first biometric information not arriving, the electronic device may identify (determine) whether the obtaining timing of the second biometric information arrives. For example, in response to the external object (e.g., finger) making contact with the display device <NUM>, the processor <NUM> may identify whether the obtaining timing of the second biometric information (e.g., biometric signal pulse) arrives.

In response to the obtaining timing of the second biometric information not arriving, in operation <NUM>, the electronic device may again identify whether the obtaining timing of the first biometric information arrives.

In operation <NUM>, in response to receiving the obtaining timing of the second biometric information, the electronic device may output light of second properties through a second pixel set corresponding to the second biometric information. For example, as illustrated in <FIG>, in response to receiving the obtaining timing of the second biometric information (e.g., biometric signal pulse), the processor <NUM> may control to output the light of the second properties through the second pixel set (e.g., the second sub pixel <NUM>). As an example, the processor <NUM> may control to emit light of the second pixel set <NUM> many times at a given period interval during the biometric information obtaining duration. As an example, the first pixel set <NUM> and the second pixel set <NUM> may output light of a wavelength at which an influence of a mutual interference is relatively lower. For instance, red output from the first sub pixel <NUM> and an infrared ray output from the infrared ray sensor <NUM> may have a relatively larger influence of mutual interference because light wavelengths are adjacent with each other. Accordingly to this, the first sub pixel <NUM> and the infrared ray sensor <NUM> may be limited in setting as the first pixel set <NUM> and the second pixel set <NUM>. For instance, green output from the second sub pixel <NUM> and infrared ray output from the infrared ray sensor <NUM> may have a relatively lower influence of mutual interference because a superposed band is less. Accordingly to this, the second sub pixel <NUM> and the infrared ray sensor <NUM> may be set as the first pixel set <NUM> and the second pixel set <NUM>.

In operation <NUM>, the electronic device may collect (obtain) light of second properties reflected from the external object, to obtain second biometric information. For example, the processor <NUM> may control the light receiving module <NUM> of the display device <NUM> to filter the light of the second properties, based on a timing of outputting the light of the second properties. The processor <NUM> may collect the light of the second properties reflected from the external object through the light receiving module <NUM> of the display device <NUM>, based on a timing of outputting the light of the second properties. As an example, the processor <NUM> may obtain a biometric signal pulse (e.g., photoplethysmography (PPG)) that is a variable component dependent on a blood flow rate, based on a light quantity collected through each pixel. As an example, the processor <NUM> may calculate a heart rate per minute, based on a peak-to-peak time of a biometric signal pulse quantized in a time domain.

According to an example embodiment, the electronic device (e.g., the electronic device <NUM>) may adjust a sampling rate for obtaining biometric information, to obtain a plurality of biometric information. For example, as illustrated in <FIG>, in response to obtaining a fingerprint (<NUM>), the processor <NUM> may control an infrared ray sensor <NUM> to output light, based on a fingerprint obtaining timing. The processor <NUM> may collect light (infrared ray) reflected from an external object, to obtain a fingerprint image. As an example, in response to additionally obtaining a heartbeat (<NUM>), the processor <NUM> may control the infrared ray sensor <NUM> to additionally output light, based on a heartbeat obtaining timing having been set between the fingerprint obtaining timings. The processor <NUM> may collect light (infrared ray) reflected from an external object between the fingerprint obtaining timings, to additionally obtain heartbeat information. As an example, in response to additionally obtaining an oxygen saturation (<NUM>), the processor <NUM> may control a first sub pixel <NUM> to output light, based on an oxygen saturation obtaining timing having been set between the fingerprint obtaining timing and the heartbeat obtaining timing. The processor <NUM> may collect light (red) reflected from the external object between the fingerprint obtaining timing and the heartbeat obtaining timing, to additionally obtain the oxygen saturation. As an example, in response to additionally obtaining a blood pressure (<NUM>), the processor <NUM> may control a second sub pixel <NUM>, the infrared ray sensor <NUM> and a third sub pixel <NUM> to sequentially output light, based on a blood pressure obtaining timing having been set between the fingerprint obtaining timings. The processor <NUM> may collect light reflected from the external object between the fingerprint obtaining timings, to additionally obtain the blood pressure. As an example, in response to additionally obtaining a skin tone (<NUM>), the processor <NUM> may control the second sub pixel <NUM>, the first sub pixel <NUM> and the third sub pixel <NUM> to sequentially output light, based on a skin tone obtaining timing having been set between the fingerprint obtaining timings. The processor <NUM> may collect light reflected from the external object between the fingerprint obtaining timings, to additionally obtain the skin tone.

<FIG> is a flowchart illustrating a method for dividing a light emitting region to obtain biometric information in an electronic device according to various embodiments. <FIG> is a diagram illustrating the light emitting region for obtaining the biometric information in the electronic device according to various embodiments. The following description is provided for an operation for obtaining biometric information using a pixel set corresponding to the biometric information as in operation <NUM> to operation <NUM> of <FIG>. In the following description, the electronic device may include the electronic device <NUM> of <FIG> or at least a part (e.g., the processor <NUM>) of the electronic device <NUM>.

Referring to <FIG>, in operation <NUM>, in response to identifying biometric information for obtaining from an external object (e.g., operation <NUM> of <FIG>), the electronic device (e.g., the electronic device <NUM>) identifies a contact region of the external object related with a display device (e.g., the display device <NUM>). For example, the processor <NUM> may identify a region <NUM> which a finger gets in contact with among the display device <NUM>.

In operation <NUM>, the electronic device sets a region of a first pixel set corresponding to first biometric information and a region of a second pixel set corresponding to second biometric information in the contact region. For example, the processor <NUM> may set at least a partial region <NUM> corresponding to a center of the contact region <NUM>, as the region of the first pixel set. The processor <NUM> may set the remnant region <NUM> excepting the region of the first pixel set among the contact region <NUM>, as the region of the second pixel set.

In operation <NUM>, the electronic device outputs light of first properties through the first pixel set among light sources included in at least one pixel included in the region of the first pixel set. For example, the processor <NUM> may control a light source of the first pixel set to output the light of the first properties from the region <NUM> of the first pixel set.

In operation <NUM>, the electronic device may collect the light of the first properties reflected from an external object, to obtain the first biometric information. For example, the processor <NUM> may identify to obtain the first biometric information through at least one pixel included in the region <NUM> of the first pixel set. The processor <NUM> may control the display device <NUM> to collect the light of the first properties reflected from the external object by filtering the light of the first properties in at least one pixel included in the region <NUM> of the first pixel set.

In operation <NUM>, the electronic device outputs light of second properties through the second pixel set among light sources included in at least one pixel included in the region of the second pixel set. For example, the processor <NUM> may control a light source of the second pixel set to output the light of the second properties from the region <NUM> of the second pixel set. As an example, the region <NUM> of the second pixel set may output light of a second wavelength different from the first wavelength corresponding to the first pixel set, at the same timing as that of the region <NUM> of the first pixel set.

In operation <NUM>, the electronic device may collect the light of the second properties reflected from the external object, to obtain second biometric information. For example, the processor <NUM> may control the display device <NUM> to collect the light of the second properties reflected from the external object by filtering the light of the second properties in at least one pixel included in the region <NUM> of the second pixel set.

<FIG> is a flowchart illustrating an example method for registering biometric information in an electronic device according to various embodiments. <FIG> is a diagram illustrating a structure for registering the biometric information in the electronic device according to various embodiments. In the following description, the electronic device may include the electronic device <NUM> of <FIG> or at least a part (e.g., the processor <NUM>) of the electronic device <NUM>.

Referring to <FIG>, in operation <NUM>, the electronic device (e.g., the electronic device <NUM> of <FIG>) may identify (determine) whether a fingerprint registration event occurs. For example, the processor <NUM> may identify whether a fingerprint registration menu is selected, based on a user input received through the input output interface <NUM>. As an example, in response to the fingerprint registration event taking place, as illustrated in <FIG>, the processor <NUM> may control the display device <NUM> to display a user interface <NUM> for fingerprint registration. The user interface <NUM> for fingerprint registration may include a fingerprint registration rate <NUM>.

In operation <NUM>, in response to the fingerprint registration event taking place, the electronic device may obtain (collect) fingerprint and biometric change information about an external object that makes contact with a display device (e.g., the display device <NUM>). For example, as in operation <NUM> to operation <NUM> of <FIG>, the processor <NUM> may output light through a mutually different pixel set, to obtain fingerprint image and biometric change information. As an example, as illustrated in <FIG>, in response to a finger <NUM> making contact with the display device <NUM>, the processor <NUM> may control to output light of a first pixel set (e.g., the infrared ray sensor <NUM> or the first sub pixel <NUM>) corresponding to a fingerprint, to obtain a fingerprint image (<NUM>). The processor <NUM> may control to output light of a second pixel set (e.g., the second sub pixel <NUM>) corresponding to biometric change information, to obtain a biometric signal pulse (e.g., PPG) that is an alternating current (AC) component dependent on a blood flow rate of the human body (<NUM>). As an example, the first pixel set and the second pixel set may emit light at mutually different timings as illustrated in <FIG>, or emit light in mutually different regions as illustrated in <FIG>.

In operation <NUM>, the electronic device may set the reference fingerprint and reference biometric change information about the external object, as reference fingerprint and reference biometric change information for user authentication. For example, the processor <NUM> may set a fingerprint image obtained by outputting the light of the first properties, as a fingerprint template for user authentication, and set the biometric change information obtained by outputting the light of the second properties, as a biometric information template for additional user authentication. The processor <NUM> may control the memory <NUM> to associate and store a reference fingerprint image for user authentication and reference biometric change information for additional user authentication.

According to an embodiment, in response to storing biometric information templates for authentication on various users, the electronic device (e.g. the electronic device <NUM>) may associate and store a reference fingerprint image and reference biometric change information on a per-user basis.

<FIG> is a flowchart illustrating a method for authenticating a user using biometric information in an electronic device according to various embodiments. <FIG> is a diagram illustrating a structure for obtaining biometric information for user authentication in the electronic device according to various embodiments. In the following description, the electronic device may include the electronic device <NUM> of <FIG> or at least a part (e.g., the processor <NUM>) of the electronic device <NUM>.

Referring to <FIG>, in operation <NUM>, the electronic device (e.g., the electronic device <NUM> of <FIG>) may identify (determine) whether a user authentication event occurs. For example, the processor <NUM> may determine whether an event for locking release takes place, based on a user input received through the input output interface <NUM>. For example, the processor <NUM> may determine whether an event for electronic payment takes place, based on a user input received through the input output interface <NUM>. As an example, in response to the user authentication event taking place, as illustrated in <FIG>, the processor <NUM> may control the display device <NUM> to display a user interface <NUM> for biometric information input.

In operation <NUM>, in response to the user authentication event taking place, the electronic device may obtain fingerprint and biometric change information about an external object that makes contact with a display device (e.g., the display device <NUM>). For example, as in operation <NUM> to operation <NUM> of <FIG>, the processor <NUM> may output light of mutually different properties, to obtain fingerprint image and biometric change information. The light of the mutually different properties may be output through mutually different pixel sets. As an example, as illustrated in <FIG>, in response to a finger making contact with the display device <NUM> (<NUM>), the processor <NUM> may control the electronic device to output light of a first pixel set (e.g., the infrared ray sensor <NUM> or the first sub pixel <NUM>) corresponding to a fingerprint, to obtain a fingerprint image (<NUM>). The processor <NUM> may control to output light of a second pixel set (e.g., the second sub pixel <NUM>) corresponding to biometric change information, to obtain a biometric signal pulse (e.g., PPG) (<NUM>). As an example, the first pixel set and the second pixel set may emit light at mutually different timings, or output light of mutually different properties (e.g., wavelengths) in mutually different regions.

In operation <NUM>, the electronic device may identify (determine) whether it has succeeded in user authentication, based on the fingerprint and biometric change information about the external object. For example, the processor <NUM> may compare the fingerprint image obtained by outputting the light of the first properties and a reference fingerprint image stored in the memory <NUM>. In response to a similarity between the fingerprint image and the reference fingerprint image exceeding a reference similarity, the processor <NUM> may determine that the fingerprint image and the reference fingerprint image are consistent with each other. The processor <NUM> may analyze a correlation between the biometric change information obtained by outputting the light of the second properties and reference biometric change information stored in the memory <NUM>. In response to it being identified that the fingerprint image and the reference fingerprint image are consistent with each other, and the biometric change information and the reference biometric change information are matched with each other, the processor <NUM> may determine that the user authentication has succeeded. In response to it being determined that the fingerprint image and the reference fingerprint image are not consistent with each other, and the biometric change information and the reference biometric change information are not matched with each other, the processor <NUM> may determine that the user authentication has failed.

In response to it being determined that the user authentication has failed, the electronic device may determine that an execution of a function corresponding to the user authentication is restricted. As an example, the processor <NUM> may control at least one of the input output interface <NUM> or the display device <NUM> to output authentication failure information.

In operation <NUM>, in response to succeeding in the user authentication, the electronic device may execute the function corresponding to the user authentication. For example, in response to succeeding in the user authentication, the processor <NUM> may release the locking of the electronic device <NUM>.

According to various embodiments, in response to succeeding in the user authentication, the electronic device may refine the reference fingerprint image and reference biometric change information stored in the memory <NUM>, based on the fingerprint image and biometric change information obtained in operation <NUM> of <FIG>.

<FIG> is a flowchart illustrating a method for outputting biometric information in an electronic device according to various embodiments. The following description is made for an operation for executing a function corresponding to user authentication as in operation <NUM> of <FIG>. In the following description, the electronic device may include the electronic device <NUM> of <FIG> or at least a part (e.g., the processor <NUM>) of the electronic device <NUM>.

Referring to <FIG>, in operation <NUM>, in response to succeeding in user authentication using a plurality of biometric information (e.g., operation <NUM> of <FIG>), the electronic device may execute a function corresponding to the user authentication. For example, in response to succeeding in the user authentication, the processor <NUM> may activate an electronic payment service.

In operation <NUM>, the electronic device may identify (determine) whether it may obtain biometric information of a user using biometric change information. For example, as in operation <NUM> of <FIG>, the processor <NUM> may analyze a PPG obtained at a fingerprint obtaining timing, to determine whether it may obtain the biometric information of the user such as a heartbeat, an oxygen saturation, a stress index, etc..

In operation <NUM>, in response to obtaining the biometric information of the user using the biometric change information, the electronic device may output the biometric information of the user. For example, the processor <NUM> may control the display device <NUM> to display the biometric information of the user (e.g., a heartbeat, an oxygen saturation, etc.) obtained using the biometric change information. For example, the processor <NUM> may identify a user's body state, based on the biometric information of the user obtained using the biometric change information. In response to identifying that the user's body state is out of a normal range, the processor <NUM> may control the display device <NUM> or the input output interface <NUM> to output a warning message or warning sound.

<FIG>, <FIG> and <FIG> are graphs illustrating biometric information obtained in an electronic device according to various embodiments. <FIG> and <FIG> are graphs illustrating another example of biometric information obtained in the electronic device according to various embodiments. <FIG> and <FIG> are graphs illustrating a further example of a graph of biometric information obtained in the electronic device according to various embodiments.

According to an embodiment, the electronic device <NUM> may improve a security level of fingerprint authentication, using biometric change information (e.g., PPG) obtained together with a fingerprint image.

According to an embodiment, the electronic device <NUM> may analyze a correlation of biometric change information, based on a waveform of the biometric change information. For example, as illustrated in <FIG>, <FIG> and <FIG>, an AC component (e.g., PPG) dependent on a user's blood flow rate may include a waveform <NUM> or <NUM> which are different mutually every user. According to this, as illustrated in <FIG>, the processor <NUM> may compare a waveform of biometric change information <NUM> obtained by emitting light through a pixel set and reference biometric change information <NUM> stored in the memory <NUM>, to identify the matching or non-matching of the biometric change information. As an example, the waveform of the biometric change information may include at least one of an angle, width, height, region or cycle of a biometric change signal.

According to an embodiment, the electronic device <NUM> may obtain biometric change information (PPG) of one or more cycles during a time for obtaining a fingerprint image. In response to obtaining the biometric change information of one or more cycles, the electronic device <NUM> may obtain a waveform of the biometric change information dependent on a position of a peak component included in the measured biometric change information, to analyze a correlation with reference biometric change information.

According to an embodiment, the electronic device <NUM> may adaptively apply a matching score of the biometric change information, based on a security level for user authentication. For example, the matching score of the biometric change information may include, as a feature, the biometric change information for analyzing the correlation with the reference biometric change information for the purpose of the user authentication. As an example, the processor <NUM> may set a matching score of the biometric change information higher as the security level for the user authentication is higher.

According to an embodiment, the electronic device <NUM> may identify an association (e.g., the contact or non-contact of the user's human body) between the electronic device <NUM> and an external object, based on a pattern of biometric change information. For example, in response to the user's human body not making contact with the display device <NUM>, as illustrated in <FIG>, the processor <NUM> may obtain a signal <NUM> of a waveform including a white noise. In response to the user's human body making contact with the display device <NUM>, as illustrated in <FIG>, the processor <NUM> may obtain a signal <NUM> of a given pattern. According to this, in response to obtaining the signal <NUM> of the waveform including the white noise as illustrated in <FIG>, the processor <NUM> may identify (determine) that a fingerprint image has been cloned. That is, the processor <NUM> may identify (determine) that user authentication using the fingerprint image has failed. In response to obtaining the signal <NUM> including the waveform of the given pattern as illustrated in <FIG>, the processor <NUM> may identify (determine) that it has obtained a fingerprint image from the user's human body. That is, in response to succeeding in authenticating the fingerprint image, the processor <NUM> may identify (determine) that the user authentication has succeeded.

According to an embodiment, the electronic device <NUM> may identify an association (e.g., the contact or non-contact of the user's human body) between the electronic device <NUM> and an external object, based on patterns of biometric change information corresponding to several wavelengths. For example, the processor <NUM> may obtain AC components (PPG) of several wavelengths reflected from the external object making contact with the display device <NUM>. In response to waveforms of AC components <NUM>, <NUM> and <NUM> of several wavelengths being similar with one another as illustrated in <FIG>, the processor <NUM> may identify (determine) that the user's human body gets in contact with the display device <NUM>. That is, in response to succeeding in authenticating the fingerprint image, the processor <NUM> may identify (determine) that the user authentication has succeeded.

According to an embodiment, the electronic device <NUM> may perform additional user authentication, based on user's skin tone information. For example, a reaction of the human body to each wavelength may be different owing to its melanin component existing within the skin. As an example, the electronic device <NUM> may measure rates of measurement components corresponding to infrared ray, red light, green light and blue light, depending on person (<NUM>, <NUM>, <NUM>, <NUM> and <NUM>). According to this, the processor <NUM> may analyze rates of several wavelengths reflected from an external object making contact with the display device <NUM>, to authenticate a user.

<FIG> is a flowchart illustrating a method for storing biometric information, based on user authentication information in an electronic device according to various embodiments. In the following description, the electronic device may include the electronic device <NUM> of <FIG> or at least a part (e.g., the processor <NUM>) of the electronic device <NUM>.

Referring to <FIG>, in operation <NUM>, the electronic device (e.g., the electronic device <NUM> of <FIG>) may identify (determine) whether a biometric information obtaining event takes place. For example, the processor <NUM> may identify (determine) whether a heartbeat measurement menu is selected, based on a user input received through the input output interface <NUM>.

In operation <NUM>, in response to the biometric information obtaining event taking place, the electronic device may obtain fingerprint and biometric change information about an external object making contact with a display device (e.g., the display device <NUM>). For example, as in operation <NUM> to operation <NUM> of <FIG>, the processor <NUM> may output light of a mutually different wavelength through a mutually different pixel set, to obtain fingerprint image and biometric change information.

In operation <NUM>, the electronic device may identify (determine) whether it may obtain biometric information of a user, based on the biometric change information. For example, the processor <NUM> may quantize an AC component (PPG) dependent on a blood flow rate of the human body in a time domain, to obtain a heart rate of the user. For example, the processor <NUM> may obtain oxygen saturation information of the user, based on a difference of reflectance rates of oxyhemoglobin and hemoglobin.

In operation <NUM>, the electronic device may identify (determine) whether user authentication using fingerprint information has succeeded. For example, in operation <NUM>, the processor <NUM> may compare a fingerprint image obtained based on light output through a first pixel set and a reference fingerprint image stored in the memory <NUM>. In response to the fingerprint image and the reference fingerprint image being consistent with each other, the processor <NUM> may identify (determine) that the user authentication has succeeded. As an example, in response to a similarity between the fingerprint image and the reference fingerprint image exceeding a reference similarity, the processor <NUM> may identify (determine) that the fingerprint image and the reference fingerprint image are consistent with each other.

In operation <NUM>, in response to succeeding in the user authentication, the electronic device may classify and store the biometric information as information of the authenticated user. For example, in response to authenticating the user using fingerprint information, the processor <NUM> may identify (determine) that the biometric information obtained together with the fingerprint information is biometric information of the corresponding user. In operation <NUM>, the processor <NUM> may control the memory <NUM> to store the biometric information obtained in operation <NUM>, as the biometric information of the user who has succeeded in authentication by the fingerprint information. As an example, the processor <NUM> may control the communication module <NUM> to transmit the biometric information of the user to a health management server of the user who has succeeded in the authentication as well.

In operation <NUM>, in response to failing in the user authentication in operation <NUM>, the electronic device may classify and store the biometric information as basic user information. For example, in response to failing to authenticate the user using the fingerprint information, the processor <NUM> may identify that the biometric information obtained together with the fingerprint information is not the biometric information of the user of the electronic device <NUM>. The processor <NUM> may control the memory <NUM> to classify and store the biometric information obtained in operation <NUM>, as common information.

According to an embodiment, in response to failing in the user authentication using the fingerprint information, the electronic device <NUM> may discard the biometric information obtained together with the fingerprint information.

According to various example embodiments, method of operating an electronic device may include identifying first biometric information and second biometric information from among a plurality of biometric information, and outputting light of first properties through a first pixel set corresponding to the first biometric information among a first sub pixel, a second sub pixel, and a third sub pixel in a display device including one or more pixels including the first sub pixel capable of outputting light of a first wavelength range, the second sub pixel capable of outputting light of a second wavelength range, and the third sub pixel capable of outputting light of a third wavelength range, and obtaining the first biometric information using light reflected from the external object, and outputting light of second properties through a second pixel set corresponding to the second biometric information among the first sub pixel, the second sub pixel, and the third sub pixel, and obtaining the second biometric information using light reflected from the external object.

According to various example embodiments, the first pixel set and the second pixel set may output light at mutually different timings.

According to various example embodiments, outputting the light of the first properties includes outputting light of the first pixel set through at least one pixel included in a first region of the display device, and outputting the light of the second properties includes outputting light of the second pixel set through at least one pixel included in a second region of the display device.

According to various example embodiments, at least a part of the one or more pixels included in the display device may further include a light emitting unit for irradiating light of an infrared band, and the first pixel set may include at least one of the first sub pixel, the second sub pixel, the third sub pixel, and the light emitting unit, and the second pixel set may include at least one different from that of the first pixel set among the first sub pixel, the second sub pixel, the third sub pixel, and the light emitting unit.

According to various example embodiments, the method may further include determining authentication on the external object, based on a similarity between designated first information and the first biometric information and a similarity between designated second information and the second biometric information.

According to various example embodiments, determining the authentication on the external object may include determining an association between the external object and a user, based on the second biometric information.

According to various embodiments, determining the authentication on the external object may include determining the authentication on the external object, based on a similarity of a change pattern of the second biometric information and a change pattern included in the designated second information.

According to various example embodiments, obtaining the first biometric information may include collecting the light of the first properties reflected from the external object, and obtaining a fingerprint image of the external object, based on the collected light.

According to various example embodiments, the first pixel set and the second pixel set may output light of mutually different wavelength ranges.

An electronic device and an operation method thereof according to various example embodiments may output light through at least one sub pixel among a plurality of sub pixels of a pixel included in a display, to obtain biometric information, thereby obtaining biometric information for user authentication.

An electronic device and an operation method thereof according to various example embodiments may output light at mutually different timings using a first pixel set and a second pixel set among a plurality of sub pixels of a pixel included in a display, to obtain each biometric information, thereby obtaining various biometric information for user authentication.

An electronic device and an operation method thereof according to various example embodiments may output light of a first pixel set through a first region in a human body contact region, and output light of a second pixel set through a second region, to obtain each biometric information, thereby obtaining various biometric information for user authentication.

An electronic device and an operation method thereof according to various example embodiments may output light through mutually different pixel sets among a plurality of sub pixels of a pixel included in a display, to additionally obtain another biometric information at the time of obtaining a fingerprint image, thereby strengthening a security of fingerprint authentication.

Referring to <FIG>, the electronic device <NUM> in the network environment <NUM> may communicate with an electronic device <NUM> via a first network <NUM> (e.g., a short-range wireless communication network), or an electronic device <NUM> and/or a server <NUM> via a second network <NUM> (e.g., a long-range wireless communication network). According to an embodiment, the electronic device <NUM> includes a processor (e.g., including processing circuitry) <NUM> (e.g., processor <NUM> of <FIG>), a display device <NUM> (e.g., display device <NUM> of <FIG>), and may include a memory <NUM> (e.g., memory <NUM> of <FIG>), an input device (e.g., including input circuitry) <NUM>, a sound output device (e.g., including sound output circuitry) <NUM>, , an audio module (e.g., including audio output circuitry) <NUM>, a sensor module <NUM>, an interface (e.g., including interface circuitry) <NUM>, a haptic module (e.g., including haptic circuitry) <NUM>, a camera module <NUM>, a power management module <NUM>, a battery <NUM>, a communication module (e.g., including communication circuitry) <NUM> (e.g., communication module <NUM> of <FIG>), a subscriber identification module (SIM) <NUM>, and/or an antenna module <NUM>. In some embodiments, at least one (e.g. the camera module <NUM>) of the components may be omitted from the electronic device <NUM>, or one or more other components may be added in the electronic device <NUM>.

The processor <NUM> may include various processing circuitry and execute, for example, software (e.g., a program <NUM>) to control at least one other component (e.g., a hardware or software component) of the electronic device <NUM> coupled with the processor <NUM>, and may perform various data processing or computation. According to an embodiment, the processor <NUM> may include a main processor <NUM> (e.g., without limitation, a dedicated processor, a central processing unit (CPU) and/or an application processor (AP), or the like), and an auxiliary processor <NUM> (e.g., without limitation, a graphics processing unit (GPU), an image signal processor (ISP), a sensor hub processor, and/or a communication processor (CP), or the like) that is operable independently from, or in conjunction with, the main processor <NUM>.

The program <NUM> may be stored in the memory <NUM> as software, and may include, for example, an operating system (OS) <NUM>, middleware <NUM>, and/or an application <NUM>, or the like.

The input device <NUM> may include various input circuitry, such as, for example, and without limitation, a microphone, a mouse, and/or a keyboard, or the like.

The sound output device <NUM> may include various sound output circuitry, such as, for example, and without limitation, a speaker and/or a receiver, or the like.

The display device <NUM> may include, for example, and without limitation, a display, a hologram device, and/or a projector, or the like, and control circuitry to control a corresponding one of the display, hologram device, and projector.

The audio module <NUM> may include various audio circuitry and convert a sound into an electrical signal and vice versa. According to an embodiment, the audio module <NUM> may obtain the sound via the input device <NUM>, or output the sound via the sound output device <NUM> or a headphone of an external electronic device (e.g., an electronic device <NUM>) directly (e.g., via wire) or wirelessly coupled with the electronic device <NUM>.

According to an embodiment, the sensor module <NUM> may include, for example, and without limitation, a gesture sensor, a gyro sensor, an atmospheric pressure sensor, a magnetic sensor, an acceleration sensor, a grip sensor, a proximity sensor, a color sensor, an infrared (IR) sensor, a biometric sensor, a temperature sensor, a humidity sensor, and/or an illuminance sensor, or the like.

The interface <NUM> may support one or more specified protocols to be used for the electronic device <NUM> to be coupled with the external electronic device (e.g., the electronic device <NUM>) directly (e.g., via wire) or wirelessly. According to an embodiment, the interface <NUM> may include, various interface circuitry, such as, for example, and without limitation, a high definition multimedia interface (HDMI), a universal serial bus (USB) interface, a secure digital (SD) card interface, and/or an audio interface, or the like.

According to an embodiment, the connecting terminal <NUM> may include, for example, and without limitation, a HDMI connector, a USB connector, a SD card connector, and/or an audio connector (e.g., a headphone connector), or the like.

According to an embodiment, the haptic module <NUM> may include, various haptic circuitry, such as, for example, and without limitation, a motor, a piezoelectric element, and/or an electric stimulator, or the like.

According to an embodiment, the communication module <NUM> may include various modules including various communication circuitry, such as, for example, and without limitation, a wireless communication module <NUM> (e.g., a cellular communication module, a short-range wireless communication module, or a global navigation satellite system (GNSS) communication module) and/or a wired communication module <NUM> (e.g., a local area network (LAN) communication module and/or a power line communication (PLC) module), or the like.

The signal or the power may then be transmitted and/or received between the communication module <NUM> and the external electronic device via the selected at least one antenna.

The electronic device according to various example embodiments may be one of various types of electronic devices. The electronic devices may include, for example, and without limitation, a portable communication device (e.g., a smart phone), a computer device, a portable multimedia device, a portable medical device, a camera, a wearable device, and/or a home appliance, or the like. According to an embodiment, the electronic devices are not limited to those described above.

It should be appreciated that the various example embodiments are not intended to limit the technological features set forth herein to particular embodiments and include various changes, equivalents, or replacements for a corresponding embodiment. It is to be understood that if an element (e.g., a first element) is referred to, with or without the term "operatively" or "communicatively", as "coupled with," "coupled to," "connected with," or "connected to" another element (e.g., a second element), it refers to a situation in which the element may be coupled with the other element directly (e.g., via wire), wirelessly, or via a third element.

As used herein, the term "module" may include a unit or component implemented in hardware, software, and/or firmware, or any combinations thereof, and may interchangeably be used with other terms, for example, "logic," "logic block," "part," or "circuitry". For example, according to an embodiment, the module may be implemented in a form of, for example, and without limitation, a dedicated processor, a CPU, an application-specific integrated circuit (ASIC), or the like.

Wherein, the term "non-transitory" simply means that the storage medium is a tangible device, but this term does not differentiate between where data is semi-permanently stored in the storage medium and where the data is temporarily stored in the storage medium.

According to an embodiment, a method according to various embodiments may be included and provided in a computer program product. If distributed online, at least part of the computer program product may be temporarily generated or at least temporarily stored in the machine-readable storage medium, such as memory of the manufacturer's server, a server of the application store, and/or a relay server, or the like.

Claim 1:
An electronic device comprising:
a display device comprising one or more pixels, the one or more pixels comprising a first sub pixel configured to output light having a first wavelength range, a second sub pixel configured to output light having a second wavelength range, and a third sub pixel configured to output light having a third wavelength range;
one or more sensors configured to obtain biometric information about an external object; and
a processor,
wherein the processor is configured to cause the electronic device to:
identify a contact region of the external object on the display device, identify first biometric information and second biometric information from among the biometric information, the first and second biometric information being of different types;
output light having first wavelength properties through a first pixel set corresponding to the first biometric information among the first sub pixel, the second sub pixel, and the third sub pixel, the first pixel set determined from a plurality of pixels based on the contact region on the display device, and obtain the first biometric information using the one or more sensors;
output light having second wavelength properties through a second pixel set corresponding to the second biometric information among the first sub pixel, the second sub pixel, and the third sub pixel, the second pixel set determined from the plurality of pixels based on the contact region on the display device, and obtain the second biometric information using the one or more sensors; and
determine authentication of the external object based on the obtained first biometric information and the obtained second biometric information,
wherein the first biometric information is fingerprint information and the second biometric information is biometric change information.