JP2018198006A - Portable electronic device, control method, and control program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve a technique for diversifying a display by a display. SOLUTION: A portable electronic device (for example, a smartphone) 1 has a first display 2A and a second display 2B capable of switching between a transmission state for transmitting incident light and a reflection state for reflecting incident light. When a predetermined event occurs during the display of the first display 2A, the first image related to the predetermined event is displayed on the second display 2B from the occurrence of the predetermined event to the detection of the predetermined operation. It is provided with a controller 10 for displaying a second image not related to the occurrence of a predetermined event on the second display 2B and then hiding the second image after a predetermined time has elapsed. [Selection diagram] FIG. 7

Description

  The present application relates to a portable electronic device, a control method, and a control program.

  A portable electronic device having a transmissive display is known. The portable electronic device of Patent Document 1 makes it possible to visually recognize a transmissive display by using a light source such as a backlight.

International Publication No. 2014/175455

  Conventional portable electronic devices have room for improvement in technology for diversifying display on a display.

  A portable electronic device according to one aspect includes a first display, a second display capable of switching between a transmissive state that transmits incident light and a reflective state that reflects incident light, and the first display When a predetermined event occurs during display, the first image related to the predetermined event is displayed on the second display from when the predetermined event occurs until a predetermined operation is detected. A controller that displays a second image that is not related to the occurrence of a non-display after a predetermined time has elapsed after being displayed on the second display.

  A portable electronic device according to one aspect includes a display capable of switching between a transmissive state that transmits incident light and a reflective state that reflects incident light, and a first image related to a predetermined event. The second image that is not related to the occurrence of the predetermined event is displayed on the display from the occurrence of the event until the predetermined operation is detected, and is not displayed after a predetermined time has elapsed after being displayed on the display. Controller.

  A control method according to one of the aspects is a control method executed by a portable electronic device including a display capable of switching between a transmissive state that transmits incident light and a reflective state that reflects incident light, Displaying the first image relating to the predetermined event on the display from the occurrence of the predetermined event to the detection of the predetermined operation; and the second image not relating to the occurrence of the predetermined event. And the step of hiding after a predetermined time has elapsed.

  A control program according to one aspect provides a first image related to a predetermined event on a portable electronic device including a display that can be switched between a transmission state that transmits incident light and a reflection state that reflects incident light. A step of displaying on the display from the occurrence of the predetermined event until a predetermined operation is detected, and a second image not related to the occurrence of the predetermined event is displayed on the display for a predetermined time. And the step of hiding after the elapse of time.

FIG. 1 is a front view illustrating an example of a smartphone according to the embodiment. Drawing 2 is a figure showing an example of arrangement of a display of a smart phone concerning an embodiment. FIG. 3 is a rear view illustrating an example of the smartphone according to the embodiment. FIG. 4 is a diagram illustrating an example of the arrangement on the back side of the smartphone according to the embodiment. FIG. 5 is a diagram illustrating an example of a state of the second display according to the embodiment. FIG. 6 is a diagram illustrating an example of display areas of the first display and the second display according to the embodiment. FIG. 7 is a block diagram of the smartphone according to the embodiment. FIG. 8 is a diagram illustrating an example of display control performed by the smartphone according to the embodiment. FIG. 9 is a diagram illustrating another example of display control performed by the smartphone according to the embodiment. FIG. 10 is a flowchart illustrating an exemplary processing procedure of display control by the smartphone according to the embodiment. FIG. 11 is a diagram illustrating another example of display control performed by the smartphone according to the embodiment. FIG. 12 is a diagram illustrating another example of display control performed by the smartphone according to the embodiment. FIG. 13 is a diagram illustrating another example of display control performed by the smartphone according to the embodiment. FIG. 14 is a diagram illustrating another example of the second display area of the second display.

  A plurality of embodiments for carrying out a portable electronic device, a control method, and a control program according to the present application will be described in detail with reference to the drawings. Below, a smart phone is demonstrated as an example of a portable electronic device.

(Embodiment)
The overall configuration of the smartphone 1 according to the embodiment will be described with reference to FIGS. 1 to 5. FIG. 1 is a front view illustrating an example of a smartphone 1 according to the embodiment. Drawing 2 is a figure showing an example of arrangement of a display of smart phone 1 concerning an embodiment. FIG. 3 is a rear view illustrating an example of the smartphone 1 according to the embodiment. FIG. 4 is a diagram illustrating an example of the arrangement on the back side of the smartphone 1 according to the embodiment. FIG. 5 is a diagram illustrating an example of a state of the second display according to the embodiment.

  As shown in FIG. 1, the smartphone 1 has a housing 20. The housing 20 has a main surface 21 and a back surface 26. The main surface 21 is the front surface of the smartphone 1. The back surface 26 is a surface facing the main surface 21 of the smartphone 1. The smartphone 1 includes a first display 2A, a second display 2B, a touch screen 2C, an illuminance sensor 4, a proximity sensor 5, and a camera 12 on the main surface 21. The smartphone 1 has a second display 2D, a coloring member 2E, and a camera 13 on the back surface 26.

  The first display 2 </ b> A and the touch screen 2 </ b> C have a substantially rectangular shape along the periphery of the main surface 21. The first display 2 </ b> A and the touch screen 2 </ b> C are surrounded by the front panel 22 of the housing 20 on the main surface 21. The first display 2A and the touch screen 2C each have a substantially rectangular shape, but the shapes of the first display 2A and the touch screen 2C are not limited to this. Each of the first display 2A and the touch screen 2C can take any shape such as a square or a circle. In the example of FIG. 1, the first display 2A and the touch screen 2C are positioned so as to overlap each other, but the positions of the first display 2A and the touch screen 2C are not limited to this. The first display 2A and the touch screen 2C may be positioned side by side or may be positioned apart from each other, for example. In the example of FIG. 1, the long side of the first display 2A is along the long side of the touch screen 2C, and the short side of the first display 2A is along the short side of the touch screen 2C. The method of overlapping the touch screen 2C is not limited to this. When the first display 2A and the touch screen 2C are positioned so as to overlap each other, for example, one or more sides of the first display 2A may not be along any side of the touch screen 2C.

  The first display 2A is a liquid crystal display (LCD: Liquid Crystal Display), an organic EL display (OELD: Organic Electro-Luminescence Display), or an inorganic EL display (IELD: Inorganic Electro-Luminescence Display). The first display 2A includes a transmissive display and a self-luminous display. In the present embodiment, the case where the first display 2A is a liquid crystal display having a backlight will be described.

  The second display 2B has a shape similar to the main surface 21 of the housing 20, as shown in FIG. The second display 2B has a larger shape than the first display 2A. The second display 2 </ b> B is overlaid on the entire surface of the first display 2 </ b> A and the front panel 22 of the housing 20. The entire surface of the second display 2B is covered with the tempered glass 25. The second display 2B is sandwiched between the first display 2A and the tempered glass 25. The second display 2B may be bonded between the first display 2A and the tempered glass 25 with, for example, a photocurable resin, an adhesive, or the like.

  As shown in FIGS. 3 and 4, the second display 2 </ b> D has a shape similar to the back surface 26 of the housing 20. The second display 2 </ b> D is overlaid on the entire back surface 26 of the housing 20. The entire surface of the second display 2D is covered with a translucent colored member 2E. The second display 2D is sandwiched between the back surface 26 of the housing 20 and the coloring member 2E. In the present embodiment, the case where the second display 2D is covered with the coloring member 2E will be described. However, the second display 2D may be covered with the tempered glass 25 similarly to the second display 2B.

  The second displays 2B and 2D include a polymer network type liquid crystal (PNLC), electronic paper, and the like. In the present embodiment, the case where the second displays 2B and 2D are polymer network type liquid crystal displays will be described.

  As shown in FIG. 5, the second displays 2 </ b> B and 2 </ b> D have a substrate 31 made of glass or a transparent film (for example, made of an organic material) and a liquid crystal layer 32. The second displays 2B and 2D have a transmission state ST1 that transmits incident light and a reflection state ST2 that reflects incident light.

  The transmissive state ST1 is a state in which a voltage is applied to the substrates 31 of the second displays 2B and 2D. In the transmissive state ST1, the second displays 2B and 2D are in a transparent state because the liquid crystal molecules 33 are aligned in the electric field direction E by application of a voltage. The second displays 2B and 2D transmit incident light in the transmission state ST1. In the transmissive state ST1, the second displays 2B and 2D emit incident light incident from the outside of the substrate 31 from the opposite substrate 31 as transmitted light. In the case of the transmission state ST1, the second displays 2B and 2D are transparent without incident light being scattered. When the second display 2B is in the transmissive state ST1, the user can visually recognize the first display 2A, the front panel 22 and the like behind. When the second display 2D is in the transmissive state ST1, the user can visually recognize the back surface 26 of the rear housing 20, the camera 13, and the like. The transmissive state ST1 includes a state in which the user can visually recognize the back of the second displays 2B and 2D via the second displays 2B and 2D. The transmissive state ST1 may include a translucent state.

  The reflection state ST2 is a state in which no voltage is applied to the substrates 31 of the second displays 2B and 2D. In the reflective state ST2, the second displays 2B and 2D induce a state in which the liquid crystal molecules 33 are irregularly arranged by the action of the network polymer network 34 inside the liquid crystal layer 32 to reflect and confuse light. In the reflective state ST2, the second displays 2B and 2D can exhibit an opaque state due to light reflection and scattering by the liquid crystal molecules 33. In the reflective state ST2, the second displays 2B and 2D can make the user visually recognize the opaque part of the second display 2B by the reflected and scattered light. The second display 2B can hide the first display 2A, the front panel 22, and the like behind the opaque portion in the reflective state ST2. The second display 2D can hide the back surface 26 of the rear housing 20, the camera 13, and the like by the opaque portion in the reflective state ST2.

  The expression of the transmission state ST1 and the reflection state ST2 depending on whether or not a voltage is applied means that it can be switched depending on whether or not a voltage is applied, and the voltage application itself does not uniquely limit the transmission state ST1. That is, in the above, the case where the second displays 2B and 2D are in a transparent state due to the application of voltage is illustrated, but the second displays 2B and 2D are in the transmission state ST1 when no voltage is applied, and the voltage is applied. An opposite configuration may be employed in which the reflection state ST2 is obtained in the state where the light is applied. In the following, the second displays 2B and 2D are in the transmission state ST1 when a voltage is applied to the substrate 31, and the second displays 2B and 2D are in the reflection state ST2 when no voltage is applied to the substrate 31. Will be described.

  In the present embodiment, the second display 2B, 2D describes a case in which the liquid crystal molecules 33 reflect and scatter light outside the smartphone 1 so that the user can visually recognize the portion of the reflection state ST2 in a cloudy state. However, it is not limited to this. For example, the second displays 2B and 2D may use a material that exhibits a color different from white.

  FIG. 6 is a diagram illustrating an example of display areas of the first display 2A and the second display 2B according to the embodiment. As shown in FIG. 6, the first display 2 </ b> A has a first display area 200. The first display area 200 is a display surface on which the first display 2A displays various information. The second display 2B has a second display area 300. The second display area 300 includes a first area 301 and a second area 302. For example, the first area 301 is an area of the second display area 300 that overlaps the first display area 200 of the first display 2A. For example, the second area 302 is an area of the second display area 300 that does not overlap the first display area 200. For example, the second area 302 is an area of the second display area 300 that overlaps the front panel 22 shown in FIG.

  In the present embodiment, the case where the second display 2B covers substantially the entire main surface 21 of the housing 20 will be described, but the present invention is not limited to this. For example, the second display 2 </ b> B may cover only a predetermined range of the main surface 21 of the housing 20. The predetermined range may be, for example, at least one of the upper side and the lower side of the first display 2A on the main surface 21. The predetermined range may be a part of the front panel 22, for example. For example, when the smartphone 1 has an operation button or the like on the front panel 22 of the housing 20, the second display 2B may be provided on the main surface 21 so as not to overlap the operation button or the like.

  The second display 2D has a third display area 400 as shown in FIG. The third display area 400 includes an area that overlaps the entire back surface 26 of the housing 20. The third display area 400 may be a partial area of the back surface 26 of the housing 20.

  The touch screen 2C detects contact of a finger, a pen, a stylus pen, or the like with the touch screen 2C. The touch screen 2C can detect a position where a plurality of fingers, a pen, a stylus pen, or the like is in contact with the touch screen 2C. In the following description, a finger, pen, stylus pen, or the like that comes into contact with the touch screen 2C may be referred to as a “contact object” or “contact object”.

  The detection method of the touch screen 2C may be any method such as a capacitance method, a resistive film method, a surface acoustic wave method (or an ultrasonic method), an infrared method, an electromagnetic induction method, and a load detection method. In the following description, in order to simplify the description, it is assumed that the user contacts the touch screen 2 </ b> C using a finger to operate the smartphone 1.

  The smartphone 1 is based on at least one of the contact detected by the touch screen 2C, the position at which the contact is detected, the change in the position at which the contact is detected, the interval at which the contact is detected, and the number of times the contact is detected. Determine the type of gesture. The gesture is an operation performed on the touch screen 2C. Gestures identified by the smartphone 1 include, but are not limited to, touch, long touch, release, swipe, tap, double tap, long tap, drag, flick, pinch in, and pinch out, for example.

  The smartphone 1 operates according to these gestures determined via the touch screen 2C. Therefore, an operability that is intuitive and easy to use for the user is realized. The operation performed by the smartphone 1 according to the determined gesture may be different depending on the screen displayed on the first display 2A. In the following description, in order to simplify the description, “the touch screen 2C detects contact and the smartphone 1 determines the gesture type as X based on the detected contact”, “the smartphone determines X May be described as “detect” or “the controller detects X”.

  The coloring member 2E includes a plate-like translucent colored panel colored with a colorant such as a pigment, a removable translucent colored cover, and a translucent colored layer laminated on the second display 2D. Including. The coloring member 2E covers the entire surface of the second display 2D. The coloring member 2E allows the user to visually recognize the second display 2D behind the back, the back surface 26 of the housing 20, and the like. The color of the coloring member 2E includes colors such as yellow, red, green, and blue, for example. When the second display 2D is in the reflective state ST2, the coloring member 2E can make the user visually recognize the second display 2D with the color of the coloring member 2E. In this embodiment, the case where the coloring member 2E is a colored panel will be described.

  In this embodiment, although the smart phone 1 demonstrates the case where the touch screen 2C is not provided in the back surface 26 of the housing 20, it is not limited to this. For example, the smartphone 1 may be provided with a touch screen 2 </ b> C that covers the second display 2 </ b> D on the back surface 26 of the housing 20.

  FIG. 7 is a block diagram of the smartphone 1 according to the embodiment. The smartphone 1 includes a first display 2A, second displays 2B and 2D, a touch screen 2C, a button 3, an illuminance sensor 4, a proximity sensor 5, a communication unit 6, a receiver 7, a microphone 8, A storage 9, a controller 10, a speaker 11, cameras 12 and 13, a connector 14, a motion sensor 15, and a GPS (Global Positioning System) receiver 16 are included.

  The first display 2A displays characters, images, symbols, graphics, and the like. The second displays 2B and 2D display characters, images, symbols, graphics, and the like. The second display 2B displays an image that masks the first display 2A, the front panel 22, and the like. The second displays 2B and 2D display images that decorate the smartphone 1. The touch screen 2C detects contact. The controller 10 detects a gesture for the smartphone 1. Specifically, the controller 10 detects an operation (gesture) on the touch screen 2C by cooperating with the touch screen 2C.

  The button 3 is operated by the user. The button 3 includes, for example, a power on / off button of the smartphone 1. Button 3 may also serve as a sleep / sleep release button. The button 3 may include a volume button, for example. The controller 10 detects an operation on the button 3 by cooperating with the button 3. The operation on the button 3 includes, for example, click, double click, triple click, push, and multi-push, but is not limited thereto.

  The illuminance sensor 4 detects the illuminance of the ambient light of the smartphone 1. The illuminance is the value of the light beam incident on the unit area of the measurement surface of the illuminance sensor 4. The illuminance sensor 4 is used for adjusting the luminance of the first display 2A, for example. The proximity sensor 5 detects the presence of a nearby object without contact. The proximity sensor 5 detects the presence of an object based on a change in a magnetic field or a change in a feedback time of an ultrasonic reflected wave. The proximity sensor 5 detects that the first display 2A and the second display 2B are close to the face, for example. The illuminance sensor 4 and the proximity sensor 5 may be configured as one sensor. The illuminance sensor 4 may be used as a proximity sensor.

  The communication unit 6 communicates wirelessly. The communication method supported by the communication unit 6 is a wireless communication standard. Examples of wireless communication standards include cellular phone communication standards such as 2G, 3G, and 4G. As a cellular phone communication standard, for example, LTE (Long Term Evolution), W-CDMA (Wideband Code Division Multiple Access), CDMA2000 (Wideband Code Division Multiple Access 2000), PDC (registered access multiples) (PDC) Global System for Mobile Communications (PHS), Personal Handy-phone System (PHS), and the like. As wireless communication standards, for example, WiMAX (Worldwide Interoperability for Microwave Access), IEEE802.11, Bluetooth (registered trademark), IrDA (Infrared Data Association), NFC (NearCo), etc. The communication unit 6 may support one or more of the communication standards described above.

  The receiver 7 and the speaker 11 are an example of an output unit that outputs sound. The receiver 7 and the speaker 11 can output the sound signal transmitted from the controller 10 as sound. For example, the receiver 7 may be used to output the voice of the other party during a call. The speaker 11 may be used for outputting a ringtone and music, for example. One of the receiver 7 and the speaker 11 may also function as the other. The microphone 8 is an example of an input unit that inputs sound. The microphone 8 can convert a user's voice or the like into a sound signal and transmit the sound signal to the controller 10.

  The storage 9 can store programs and data. The storage 9 may also be used as a work area for temporarily storing the processing result of the controller 10. The storage 9 includes a recording medium. The recording medium may include any non-transitory storage medium such as a semiconductor storage medium and a magnetic storage medium. The storage 9 may include a plurality of types of storage media. The storage 9 may include a combination of a portable storage medium such as a memory card, an optical disk, or a magneto-optical disk and a storage medium reader. The storage 9 may include a storage device used as a temporary storage area such as a RAM (Random Access Memory).

  The programs stored in the storage 9 include an application executed in the foreground or the background and a control program that supports the operation of the application. For example, the application displays a screen on the first display 2A, and causes the controller 10 to execute a process corresponding to a gesture detected via the touch screen 2C. The control program is, for example, an OS. The application and the control program may be installed in the storage 9 via wireless communication by the communication unit 6 or a non-transitory storage medium.

  The storage 9 stores, for example, a control program 9A, a mail application 9B, a browser application 9C, a navigation application 9D, and setting data 9Z. The setting data 9Z includes information related to various settings related to the operation of the smartphone 1. The mail application 9B provides an electronic mail function for creating, transmitting, receiving, and displaying an electronic mail. The browser application 9C provides a WEB browsing function for displaying a WEB page. The navigation application 9D provides a navigation function for route guidance and the like.

  The control program 9A can provide functions related to various controls for operating the smartphone 1. The control program 9A realizes a call by controlling the communication unit 6, the receiver 7, the microphone 8, and the like, for example. The function provided by the control program 9A includes a function of performing various controls such as changing information displayed on the first display 2A according to a gesture detected via the touch screen 2C. The functions provided by the control program 9A include functions for controlling the display on the first display 2A and the second displays 2B and 2D. The control program 9A provides a function that restricts acceptance of operations on the touch screen 2C, the buttons 3, and the like. Functions provided by the control program 9 </ b> A include functions for detecting movement, stop, and the like of the user carrying the smartphone 1 based on the detection result of the motion sensor 15. The function provided by the control program 9A may be used in combination with a function provided by another program such as the mail application 9B.

  The setting data 9Z includes condition data for determining a predetermined condition for switching between the display state and the non-display state of the first display 2A. The display state includes a state in which display on the first display 2A is possible. The non-display state includes a state where display on the first display 2A is impossible, a state where the power source of the first display 2A is off, and the like. The predetermined condition includes a condition for causing the first display 2A to transition from the display state to the non-display state. For example, the predetermined condition includes a condition for determining whether or not a predetermined time has elapsed since the end of the user's operation. For example, the predetermined condition includes a condition for determining whether or not a predetermined time has elapsed since the smartphone 1 was left stationary. The condition data includes a condition for transition from the display state of the first display 2A to the non-display state. The condition data includes a condition for transition from the non-display state of the first display 2A to the display state. The setting data 9Z includes data for setting images to be displayed on the second displays 2B and 2D, display positions, and the like.

  The controller 10 is an arithmetic processing device. The arithmetic processing unit includes, for example, a CPU (Central Processing Unit), an SoC (System-on-a-chip), an MCU (Micro Control Unit), an FPGA (Field-Programmable Gate Array), and a coprocessor. It is not limited. The controller 10 can comprehensively control the operation of the smartphone 1. Various functions of the controller 10 are realized based on the control of the controller 10.

  Specifically, the controller 10 can execute an instruction included in a program stored in the storage 9. The controller 10 can refer to the data stored in the storage 9 as necessary. The controller 10 controls the functional unit according to data and instructions. The controller 10 implements various functions by controlling the function unit. The functional unit includes, for example, the first display 2A, the second display 2B, the second display 2D, the communication unit 6, the receiver 7, and the speaker 11, but is not limited thereto. The controller 10 may change the control according to the detection result of the detection unit. Examples of the detection unit include, but are not limited to, the touch screen 2C, the button 3, the illuminance sensor 4, the proximity sensor 5, the microphone 8, the camera 12, the camera 13, the motion sensor 15, and the GPS receiver 16.

  For example, the controller 10 can execute various controls such as changing information displayed on the first display 2A according to a gesture detected via the touch screen 2C by executing the control program 9A.

  The camera 12 and the camera 13 can convert the captured image into an electrical signal. The camera 12 is an in-camera that captures an object facing the front panel 22. The camera 13 is an out camera that photographs an object facing the back surface 26 of the housing 20.

  The connector 14 is a terminal to which another device is connected. The connector 14 may be a general-purpose terminal such as USB (Universal Serial Bus), HDMI (registered trademark) (High-Definition Multimedia Interface), Light Peak (Thunderbolt (registered trademark)), and an earphone microphone connector. . The connector 14 may be a dedicated terminal such as a dock connector. Devices connected to the connector 14 include, but are not limited to, external storage, speakers, and communication devices, for example.

  The motion sensor 15 can detect various information for determining the operation of the user carrying the smartphone 1. The motion sensor 15 may be configured as a sensor unit including, for example, an acceleration sensor, a direction sensor, a gyroscope, a magnetic sensor, and an atmospheric pressure sensor.

  The GPS receiver 16 can detect the current position of the smartphone 1. The GPS receiver 16 receives a radio signal in a predetermined frequency band from a GPS satellite, demodulates the received radio signal, and sends the processed signal to the controller 10. In this embodiment, although the smart phone 1 demonstrates the case where it has the GPS receiver 16, it is not limited to this. For example, the smartphone 1 may include a receiver that receives radio signals from positioning satellites other than GPS satellites. For example, the smartphone 1 may detect the current position based on a base station in which the communication unit 6 uses wireless communication. For example, the smartphone 1 may detect the current position using a plurality of methods in combination.

  In FIG. 7, some or all of the programs and data stored in the storage 9 may be downloaded from other devices by wireless communication using the communication unit 6. In FIG. 7, some or all of the programs and data stored in the storage 9 may be stored in a non-transitory storage medium that can be read by the reading device included in the storage 9. In FIG. 7, some or all of the programs and data stored in the storage 9 may be stored in a non-transitory storage medium that can be read by a reader connected to the connector 14. Non-transitory storage media include, for example, optical disks such as CD (registered trademark), DVD (registered trademark), and Blu-ray (registered trademark), magneto-optical disks, magnetic storage media, memory cards, and solid-state storage media Including, but not limited to.

  The configuration of the smartphone 1 illustrated in FIG. 7 is an example, and may be changed as appropriate within a range that does not impair the gist of the present invention. In the example illustrated in FIG. 7, the smartphone 1 includes the button 3, but the smartphone 1 may not include the button 3. In the example illustrated in FIG. 7, the smartphone 1 includes two cameras, but the smartphone 1 may include only one camera or may not include a camera.

  FIG. 8 is a diagram illustrating an example of display control performed by the smartphone 1 according to the embodiment. The smartphone 1 executes the navigation application 9D and displays the screen 100 on the first display 2A as shown in the state S21 in FIG. In the state S21, the smartphone 1 sets the entire surface of the second display 2B to the transmissive state ST1. The smartphone 1 can transmit the light from the first display 2 </ b> A to the transparent second display 2 </ b> B and emit the light to the outside of the smartphone 1. As a result, the user can visually recognize the screen 100 displayed on the first display 2A via the transparent second display 2B by visually recognizing the emitted light.

  For example, in the state S21, the smartphone 1 displays a map screen as the screen 100 on the first display 2A, and navigates based on the route to the destination set by the user and the current position of the own device. When the current position of the smartphone 1 satisfies the guidance condition, the smartphone 1 generates an event for notifying information for guiding the user. Guidance conditions include conditions such as, for example, detection of approaching a left or right turn, detection of approaching a landmark, detection of approaching a destination, detection of departure from a route, etc. . In the example shown in the state S21, when the smartphone 1 detects that the current position of its own device is 120m to the left turn position, an event for notifying information for guiding the user occurs.

  When the predetermined event occurs, the smartphone 1 displays the first image 50 corresponding to the predetermined event on the second display 2B in the state S22. The predetermined event includes, for example, an event predetermined by an application. The predetermined event includes, for example, detection of a specific operation by the user for switching the display. The specific operation includes, for example, operations such as a double tap, a long touch, a slide, a flick, a shake (shake) of the own device, and a grip (grip) of the own device. For example, the smartphone 1 can detect a shake operation based on an acceleration acting on the own device. The smartphone 1 can detect a grip operation based on, for example, a change in pressure in the device itself, a contact state of the touch screen 2C, and the like. The first image 50 includes a transmission part 51 and a reflection part 52. The first image 50 is an image in which the transmission part 51 and the reflection part 52 are combined. In the smartphone 1, the portion of the second display area 300 corresponding to the transmission portion 51 of the first image 50 is in the transmission state ST1, and the portion of the second display area 300 corresponding to the reflection portion 52 of the first image 50 is in the reflection state ST2. Thus, the second display 2B is controlled. The smartphone 1 causes the user to visually recognize the transmission part 51 of the first image 50 by the color behind it. The smartphone 1 causes the user to visually recognize the reflecting portion 52 of the first image 50 by the color of the opaque second display 2B.

  In the example illustrated in FIG. 8, the case where the first image 50 is an image that hides the first display 2 </ b> A and the front panel 22 is described, but the present invention is not limited to this. For example, the first image 50 may be an image that hides only the first display 2A. The transmission part 51 of the first image 50 includes images such as characters to be notified and arrows. The reflection unit 52 of the first image 50 includes a background image. The smartphone 1 may display the portion of the first display 2 </ b> A where the transmission part 51 of the first image 50 overlaps with the display color of the transmission part 51. For example, the smartphone 1 can make the user visually recognize the transmissive part 51 in black by making the back of the transmissive part 51 of the first image 50 black. In addition, the smart phone 1 is good also as a structure which contains images, such as a character and an arrow which the reflection part 52 of the 1st image 50 notifies, and the transmission part 51 of the 1st image 50 contains a background image.

  The smartphone 1 can hide a part of the first display 2 </ b> A on which the first image 50 overlaps with the reflection unit 52 of the first image 50. The smartphone 1 can display the first image 50 on the front panel 22 that cannot be displayed on the first display 2A. By visually recognizing that the screen has been switched from the screen 100 of the first display 2A to the first image 50 of the second display 2B, the user can easily notice a change in display content. The smartphone 1 can improve the possibility of hiding the screen 100 of the first display 2 </ b> A and causing the user to understand information related to a predetermined event by the first image 50. When the smartphone 1 displays the first image 50 on the second display 2B by using the polymer network type liquid crystal as the second display 2B, the external light visibility is improved and the display by the first display 2A. Also, power consumption can be suppressed.

  When the smartphone 1 detects a predetermined operation corresponding to a predetermined event in the state S22, the smartphone 1 hides the first image 50 displayed on the second display 2B, and transitions to the state S21. That is, the smartphone 1 changes the entire surface of the second display 2B to the transmissive state ST1. The smartphone 1 switches from a state in which the first image 50 is displayed on the second display 2B to a state in which the screen 100 is displayed on the first display 2A in accordance with a predetermined operation. The predetermined operation includes, for example, a predetermined operation by the user and an operation (including a user's operation) such as a movement of the own device by the user. The predetermined operation by the user includes, for example, operations such as a double tap, a long touch, a slide, a flick, a shake of the own device (shake), and a grip of the own device (grip). Moreover, the smart phone 1 can detect operation, such as a movement of an own machine, based on the acceleration which acts on an own machine, for example.

  The smartphone 1 can display the first image 50 related to the predetermined event on the second display 2B from when the predetermined event occurs until the predetermined operation is detected. As a result, the smartphone 1 can continuously display the first image 50 relating to the predetermined event, and thus the user can be prevented from overlooking the information. In the example illustrated in FIG. 8, the smartphone 1 can recognize that the user is approaching the left turn position.

  FIG. 9 is a diagram illustrating another example of display control performed by the smartphone 1 according to the embodiment. The smartphone 1 executes the navigation application 9D and displays the screen 100 on the first display 2A as shown in a state S21 in FIG. The state S21 shown in FIG. 9 is the same as the state S21 shown in FIG.

  The smartphone 1 transitions to the state S23 when an event different from the predetermined event occurs in the state S21. The event different from the predetermined event includes, for example, an event not related to the application being executed. For example, when a time signal event occurs, the smartphone 1 displays the second image 60 related to the time signal on the second display 2B in the state S23. The second image 60 includes a transmission part 61 and a reflection part 62. The second image 60 is an image in which the transmission part 61 and the reflection part 62 are combined. In the smartphone 1, the portion of the second display region 300 corresponding to the transmissive portion 61 of the second image 60 is in the transmissive state ST1, and the portion of the second display region 300 corresponding to the reflective portion 62 of the second image 60 is in the reflective state ST2. Thus, the second display 2B is controlled. The smartphone 1 causes the user to visually recognize the transmissive part 61 of the second image 60 by the color behind it. The smartphone 1 causes the user to visually recognize the reflecting portion 62 of the second image 60 by the color of the opaque second display 2B.

  In the example illustrated in FIG. 9, the smartphone 1 describes a case where the second image 60 is an image that is superimposed on the front panel 22 of the housing 20 and is not superimposed on the first display 2A, but is not limited thereto. For example, the smartphone 1 may use the second image 60 as an image covering the entire front panel 22 as in the state S22 illustrated in FIG. The transmission part 61 of the second image 60 includes a number image to be notified. The reflection unit 62 of the second image 60 includes a background image. The smartphone 1 may superimpose the second image 60 on the first display 2A.

  When a predetermined time elapses after an event different from the predetermined event occurs in the state S23, the smartphone 1 hides the second image 60 and transitions to the state S21. The smartphone 1 does not always display the second image 60 that is not related to the predetermined event. As a result, the smartphone 1 can display information related to the predetermined event and information not related to the predetermined event in different display modes, so that the convenience of the user can be improved.

  FIG. 10 is a flowchart illustrating an example of a processing procedure of display control by the smartphone 1 according to the embodiment. The processing procedure shown in FIG. 10 is realized by the controller 10 executing the control program 9A. The processing procedure shown in FIG. 10 is repeatedly executed by the controller 10.

  As illustrated in FIG. 10, the controller 10 of the smartphone 1 determines whether or not the first display 2A is being displayed (step S101). For example, when any information is displayed on the first display 2A, the controller 10 determines that the first display 2A is being displayed. When it is determined that the first display 2A is not being displayed (No in step S101), the controller 10 ends the processing procedure illustrated in FIG. If the controller 10 determines that the first display 2A is being displayed (Yes in step S101), the process proceeds to step S102.

  The controller 10 determines whether or not a predetermined event has occurred (step S102). For example, if the controller 10 detects the occurrence of a predetermined event while displaying the first display 2A, the controller 10 determines that a predetermined event has occurred. For example, when a predetermined application is executed, the controller 10 determines that a predetermined event has occurred when detecting the occurrence of a predetermined event. If the controller 10 determines that a predetermined event has occurred (Yes in step S102), the process proceeds to step S103.

  The controller 10 displays the first image 50 corresponding to the predetermined event on the second display 2B (step S103). For example, the controller 10 specifies the first image 50 corresponding to a predetermined event, and displays the specified first image 50 on the second display 2B. For example, the controller 10 may display the first image 50 on the second display 2B and then hide the first display 2A. When the controller 10 displays the first image 50 on the second display 2B, the process proceeds to step S104.

  The controller 10 determines whether or not a predetermined operation has been detected (step S104). For example, the controller 10 determines that a predetermined operation has been detected when an operation, action, or the like corresponding to the first image 50 is detected. When it is determined that the predetermined operation has not been detected (No in step S104), the controller 10 returns the process to step S103 already described. If the controller 10 determines that a predetermined operation has been detected (Yes in step S104), the process proceeds to step S105.

  The controller 10 deletes the first image 50 displayed on the second display 2B (step S105). For example, when the first display 2A is not displayed during the display of the first image 50, the controller 10 returns the first display 2A to the state before the non-display. When the controller 10 deletes the first image 50, the processing procedure shown in FIG.

  If the controller 10 determines that a predetermined event has not occurred (No in step S102), the controller 10 proceeds to step S106. The controller 10 determines whether an event different from the predetermined event has occurred (step S106). For example, when the controller 10 detects the occurrence of an event that is different from a predetermined event and is permitted to be temporarily displayed during display of the first display 2A, the controller 10 determines that an event different from the predetermined event has occurred. To do. When it is determined that an event different from the predetermined event has not occurred (No in step S106), the controller 10 ends the processing procedure illustrated in FIG.

  If the controller 10 determines that an event different from the predetermined event has occurred (Yes in step S106), the controller 10 proceeds to step S107. The controller 10 causes the second display 2B to display the second image 60 corresponding to the event not related to the predetermined event (step S107). For example, the controller 10 specifies the second image 60 corresponding to the event not related to the predetermined event, and displays the specified second image 60 on the second display 2B. For example, the controller 10 displays the second image 60 on the second display 2B while maintaining the display state of the first display 2A. For example, the controller 10 displays the second image 60 at a position on the second display 2B that does not overlap the first display 2A. The controller 10 may display the second image 60 at the position of the second display 2B that overlaps the first display 2A. For example, the controller 10 may display the second image 60 on the second display 2D provided on the back surface 26 of the housing 20.

  After displaying the second image 60 on the second display 2B, the controller 10 determines whether or not a predetermined time has elapsed (step S108). For example, when the difference between the time when the display of the second image 60 is started and the current time exceeds a predetermined time, the controller 10 sets the predetermined time when the timer started when a predetermined event occurs has timed out. Judge that it has passed. When it is determined that the predetermined time has not elapsed (No in step S108), the controller 10 returns the process to step S107 already described. If it is determined that the predetermined time has elapsed (Yes in step S108), the controller 10 advances the process to step S109.

  The controller 10 deletes the second image 60 displayed on the second display 2B (step S109). When the controller 10 deletes the second image 60, the processing procedure shown in FIG.

  FIG. 11 is a diagram illustrating another example of display control performed by the smartphone 1 according to the embodiment. The smartphone 1 executes the control program 9A and displays the screen 100 on the first display 2A as shown in the state S31 of FIG. In the state S31, the smartphone 1 sets the entire surface of the second display 2B to the transmissive state ST1. The smartphone 1 can transmit the light from the first display 2 </ b> A to the transparent second display 2 </ b> B and emit the light to the outside of the smartphone 1. As a result, the user can visually recognize the screen 100 displayed on the first display 2A via the transparent second display 2B by visually recognizing the emitted light.

  For example, in the state S31, the smartphone 1 displays the screen 100 that is a home screen on the first display 2A. When the smartphone 1 detects an incoming call using the communication unit 6 and does not respond to the user, a predetermined event for notifying the incoming call occurs. Although the example shown in state S31 demonstrates the case where the smart phone 1 displays the screen 100 on the 1st display 2A, it is not limited to this. For example, the smartphone 1 may display a lock screen, a screen of another application, or the like as the screen 100.

  When a predetermined event occurs, the smartphone 1 causes the second display 2B to display the first image 50A corresponding to the predetermined event in the state S32. The predetermined event includes, for example, an event predetermined by an application. The first image 50 </ b> A includes a transmission part 51 and a reflection part 52. The first image 50 </ b> A is an image obtained by combining the transmission part 51 and the reflection part 52. In the smartphone 1, the part of the second display area 300 corresponding to the transmissive part 51 of the first image 50A is in the transmissive state ST1, and the part of the second display area 300 corresponding to the reflective part 52 of the first image 50A is in the reflective state ST2. Thus, the second display 2B is controlled. The smartphone 1 causes the user to visually recognize the transmission part 51 of the first image 50A by the color behind it. The smartphone 1 causes the user to visually recognize the reflective portion 52 of the first image 50A by the color of the opaque second display 2B.

  In the example illustrated in FIG. 11, the case where the first image 50A is an image that hides the first display 2A and the front panel 22 will be described, but the present invention is not limited to this. For example, the first image 50A may be an image that hides only the first display 2A. The transparent portion 51 of the first image 50A includes an image such as an icon indicating an incoming call and a tag (memo) indicating details of the incoming call. The reflection part 52 of the first image 50A includes a background image. The smartphone 1 may display the portion of the first display 2 </ b> A where the transmission part 51 of the first image 50 </ b> A overlaps with the display color of the transmission part 51. For example, the smartphone 1 can cause the user to visually recognize the transmissive part 51 in black by making the back of the transmissive part 51 of the first image 50A black.

  The smartphone 1 can hide a part of the first display 2 </ b> A on which the first image 50 </ b> A overlaps with the reflection unit 52 of the first image 50 </ b> A. The smartphone 1 can display the first image 50A on the front panel 22 that cannot be displayed on the first display 2A. By visually recognizing that the screen is switched from the screen 100 of the first display 2A to the first image 50A of the second display 2B, the user can easily notice a change in display content. The smartphone 1 can improve the possibility of hiding the screen 100 of the first display 2A and causing the user to understand information related to the predetermined event by the first image 50A. When the smartphone 1 displays the first image 50A on the second display 2B by using the polymer network type liquid crystal as the second display 2B, the external light visibility is improved and the display by the first display 2A. Also, power consumption can be suppressed.

  When the smartphone 1 detects a predetermined operation corresponding to a predetermined event in the state S32, the smartphone 1 hides the first image 50A displayed on the second display 2B, and transitions to the state S31. That is, the smartphone 1 changes the entire surface of the second display 2B to the transmissive state ST1. The smartphone 1 switches from a state in which the first image 50A is displayed on the second display 2B to a state in which the screen 100 is displayed on the first display 2A in accordance with a predetermined operation.

  The smartphone 1 can display the first image 50A related to the predetermined event on the second display 2B from the occurrence of the predetermined event to the detection of the predetermined operation. As a result, since the smartphone 1 can continuously display the first image 50A related to the predetermined event, it is possible to prevent the user from overlooking the information related to the predetermined event. In the example illustrated in FIG. 11, the smartphone 1 can prevent the user from overlooking information related to incoming calls.

  When an event different from the predetermined event occurs in the state S31, the smartphone 1 displays the second image 60 corresponding to the event on the second display 2B, as in the example illustrated in FIG. After displaying the second image 60 on the second display 2B, the smartphone 1 hides the second image 60 when a predetermined time has elapsed. In this case, the smartphone 1 continues the display on the first display 2A of the screen 100 shown in the state S31.

  The smartphone 1 can use the processing procedure shown in FIG. 10 for the display control processing procedure in the state S31 and the state S32 shown in FIG. That is, the controller 10 of the smartphone 1 can implement the display control shown in FIG. 11 by repeatedly executing the processing procedure shown in FIG.

  FIG. 12 is a diagram illustrating another example of display control performed by the smartphone 1 according to the embodiment. The smartphone 1 executes the browser application 9C and displays the screen 100 on the first display 2A as shown in a state S41 in FIG. In the example shown in FIG. 12, the screen 100 includes a browser screen displayed by the browser application 9C. In the state S41, the smartphone 1 sets the entire surface of the second display 2B to the transmissive state ST1. The smartphone 1 can transmit the light from the first display 2 </ b> A to the transparent second display 2 </ b> B and emit the light to the outside of the smartphone 1. As a result, the user can visually recognize the screen 100 displayed on the first display 2A via the transparent second display 2B by visually recognizing the emitted light.

  For example, in the state S41, the smartphone 1 displays the screen 100 that is a browser screen on the first display 2A. In this case, the smartphone 1 may generate a predetermined event for receiving a coupon display request from a server or the like in accordance with a user operation on the screen 100.

  When a predetermined event occurs, the smartphone 1 causes the second display 2B to display the first image 50B corresponding to the predetermined event in the state S42. The first image 50 </ b> B includes a transmission part 51 and a reflection part 52. The first image 50 </ b> B is an image obtained by combining the transmission part 51 and the reflection part 52. In the smartphone 1, the part of the second display area 300 corresponding to the transmissive part 51 of the first image 50B is in the transmissive state ST1, and the part of the second display area 300 corresponding to the reflective part 52 of the first image 50B is in the reflective state ST2. Thus, the second display 2B is controlled. The smartphone 1 causes the user to visually recognize the transmission part 51 of the first image 50B by the color behind it. The smartphone 1 causes the user to visually recognize the reflection part 52 of the first image 50B by the color of the opaque second display 2B.

  In the example illustrated in FIG. 12, the case where the first image 50B is an image that hides the first display 2A and the front panel 22 will be described, but the present invention is not limited to this. For example, the first image 50B may be an image that hides only the first display 2A. The transmissive part 51 of the first image 50B includes an image showing the characters, numbers, frames, etc. of the coupon. The reflection unit 52 of the first image 50B includes a background image. The smartphone 1 may display the portion of the first display 2 </ b> A where the transmission part 51 of the first image 50 </ b> B overlaps with the display color of the transmission part 51. For example, the smartphone 1 can cause the user to visually recognize the transmissive part 51 in red, yellow, or the like by making the back of the transmissive part 51 of the first image 50B red, yellow, or the like.

  The smartphone 1 can hide a part of the first display 2 </ b> A on which the first image 50 </ b> B overlaps with the reflection unit 52 of the first image 50 </ b> B. The smartphone 1 can display the first image 50B on the front panel 22 that cannot be displayed on the first display 2A. By visually recognizing that the screen has been switched from the screen 100 of the first display 2A to the first image 50B of the second display 2B, the user can easily notice a change in display content. The smartphone 1 can improve the possibility of hiding the screen 100 of the first display 2A and allowing the user to understand information related to a predetermined event by the first image 50B. When the smartphone 1 displays the first image 50B on the second display 2B by using the polymer network type liquid crystal as the second display 2B, the external light visibility is improved and the display by the first display 2A. Also, power consumption can be suppressed.

  When the smartphone 1 detects a predetermined operation corresponding to a predetermined event in the state S42, the smartphone 1 hides the first image 50B displayed on the second display 2B, and transitions to the state S41. That is, the smartphone 1 changes the entire surface of the second display 2B to the transmissive state ST1. The smartphone 1 switches from a state in which the first image 50B is displayed on the second display 2B to a state in which the screen 100 is displayed on the first display 2A in accordance with a predetermined operation.

  When an event different from the predetermined event occurs in the state S41, the smartphone 1 displays the second image 60 corresponding to the event on the second display 2B, as in the example illustrated in FIG. After displaying the second image 60 on the second display 2B, the smartphone 1 hides the second image 60 when a predetermined time has elapsed. In this case, the smartphone 1 continues the display on the first display 2A of the screen 100 shown in the state S41.

  The smartphone 1 can use the processing procedure shown in FIG. 10 for the display control processing procedure in the state S41 and the state S42 shown in FIG. That is, the controller 10 of the smartphone 1 can implement the display control shown in FIG. 12 by repeatedly executing the processing procedure shown in FIG.

  Embodiment which this application discloses can be changed in the range which does not deviate from the summary and range of invention. Furthermore, the embodiments disclosed in the present application can be combined as appropriate. For example, the above embodiment may be modified as follows.

  In the example of the display control described with reference to FIGS. 8 to 12, when it is determined that an event different from the predetermined event has occurred, the second display 60 displays the second image 60 corresponding to the event not related to the predetermined event. Although the structure displayed on 2B was illustrated, it is not limited to this. When the smartphone 1 determines that an event different from the predetermined event has occurred, the smartphone 1 may display the second image 60 corresponding to the event not related to the predetermined event on the first display 2A.

  For example, each program shown in FIG. 7 may be divided into a plurality of modules, or may be combined with other programs.

  In the above embodiment, the smartphone 1 has the second display 2D on the back surface 26 of the housing 20. The smartphone 1 may display information such as the first image 50 and the second image 60 on the second display 2D.

  FIG. 13 is a diagram illustrating another example of display control performed by the smartphone 1 according to the embodiment. As illustrated in FIG. 13, the smartphone 1 has a translucent coloring member 2 </ b> E superimposed on the second display 2 </ b> D on the back surface 26. By displaying information on the second display 2D on the back surface 26, the smartphone 1 can cause the user to visually recognize the portion of the reflection state ST2 of the second display 2D as if it is shining with the color of the coloring member 2E.

  In the example illustrated in FIG. 13, the smartphone 1 sets the number portion to the reflective state ST2 and the background portion to the transmissive state ST1. As a result, the smartphone 1 can allow the user to visually recognize the numerical part displayed on the second display 2D so that it is shining with the color of the coloring member 2E. In the smartphone 1, the portion of the second display 2D in the transmission state ST1 is darker than the portion of the reflection state ST2. The smartphone 1 can diversify the display mode by displaying information such as the first image 50 and the second image 60 on the second display 2 </ b> D on the back surface 26. The smartphone 1 can improve external light visibility and suppress power consumption by using a polymer network type liquid crystal as the second display 2D.

  In the embodiment described above, the smartphone 1 has been described with respect to the case where the first images 50, 50 </ b> A, and 50 </ b> B straddle the first region 301 and the second region 302, but the present invention is not limited to this. For example, the smartphone 1 may display the image of the second display 2 </ b> B in either the first area 301 or the second area 302.

  In the above-described embodiment, the smartphone 1 has been described using the substantially rectangular second displays 2B and 2D, but is not limited thereto. For example, the smartphone 1 may use the second displays 2B and 2D having shapes such as a polygon, an ellipse, and a star.

  In the embodiment described above, the smartphone 1 has been described with respect to the case where the size of the touch screen 2C is substantially the same as the size of the first display 2A, but is not limited thereto. For example, the smartphone 1 may set the size of the touch screen 2C to be approximately the same size as the second display 2B.

  In the above-described embodiment, the smartphone 1 has been described with respect to the case where one second display 2B is stacked on the display surface side of the first display 2A, but is not limited thereto. For example, the smartphone 1 may stack a plurality of second displays on the display surface side of the first display 2A.

  In the above embodiment, the smartphone 1 has been described with respect to the case where the second display 2D is provided on the entire back surface 26 of the housing 20, but the present invention is not limited to this. For example, the smartphone 1 may provide the second display 2D on a part of the back surface 26. Furthermore, the smartphone 1 may overlap the first display 2 </ b> A and the second display 2 </ b> D on the back surface 26 of the housing 20.

  In the above embodiment, the smartphone 1 has been described with respect to the case where the second displays 2B and 2D are displayed in a matrix of dots, but the present invention is not limited to this. The second displays 2B and 2D may perform segment display or may combine matrix display and segment display.

  FIG. 14 is a diagram illustrating another example of the second display area 300 of the second display 2B. As shown in FIG. 14, the second display area 300 of the second display 2B includes a segment area 300G and a matrix area 300M. The segment area 300G can display a desired segment among a plurality of predetermined segments. The plurality of segments include, for example, numbers, letters, symbols, and the like. The segment area 300G can display, for example, an arrow, a clock, a distance / speed meter, and the like. The matrix area 300M can display a combination of a plurality of dots (pixels). The matrix area 300M can display, for example, dates, texts, notification icons, and the like. Since the smart phone 1 should just make only the segment part which the segment area | region 300G of the 2nd display 2B displays into the permeation | transmission state ST1, ie, the application state of a voltage, it can suppress power consumption. In the second display area 300 of the second display 2B, the arrangement of the segment area 300G and the matrix area 300M is not limited to the example shown in FIG. Note that the third display area 400 of the second display 2D may also include a segment area and a matrix area, similarly to the second display 2B.

  In said embodiment, although the smart phone 1 was demonstrated as an example of a portable electronic device, the portable electronic device which concerns on an attached claim is not limited to the smart phone 1. FIG. The mobile electronic device according to the appended claims may be an electronic device other than the smartphone 1. Examples of the electronic device include, but are not limited to, a mobile phone, a smart watch, a portable personal computer, a head mounted display, a digital camera, a media player, an electronic book reader, a navigator, and a game machine.

  The characterizing embodiments have been described in order to fully and clearly disclose the technology according to the appended claims. However, the appended claims should not be limited to the above-described embodiments, but all modifications and alternatives that can be created by those skilled in the art within the scope of the basic matters shown in this specification. Should be configured to embody such a configuration. The above means, steps, actions, functions, etc. can be rearranged so as not to be logically contradictory, and a plurality of means, step actions, functions, etc. can be combined or divided in any way. Is possible.

DESCRIPTION OF SYMBOLS 1 Smart phone 2A 1st display 2B, 2D 2nd display 2C Touch screen 2E Coloring member 3 Button 4 Illuminance sensor 5 Proximity sensor 6 Communication unit 7 Receiver 8 Microphone 9 Storage 9A Control program 9B Mail application 9C Browser application 9D Navigation application 9Z setting Data 10 Controller 11 Speaker 12, 13 Camera 14 Connector 15 Motion sensor 16 GPS receiver 20 Housing

Claims (6)

A first display;
A second display capable of switching between a transmissive state for transmitting incident light and a reflective state for reflecting incident light;
When a predetermined event occurs during display of the first display, a first image related to the predetermined event is displayed on the second display from when the predetermined event occurs until a predetermined operation is detected. ,
A controller that causes the second image not related to the occurrence of the predetermined event to be displayed on the second display and then to be hidden after a predetermined time has elapsed;
A portable electronic device comprising: The first display is provided on one surface of the housing,
The portable electronic device according to claim 1, wherein the second display is provided on an opposite surface of the housing that faces the one surface.   The portable electronic device according to claim 1, further comprising a translucent colored member superimposed on the second display. A display that can be switched between a transmissive state that transmits incident light and a reflective state that reflects incident light; and
A first image related to a predetermined event is displayed on the display from when the predetermined event occurs until a predetermined operation is detected;
A controller that causes the second image not related to the occurrence of the predetermined event to be displayed on the display and to be hidden after a predetermined time has elapsed;
A portable electronic device comprising: A control method executed by a portable electronic device including a display capable of switching between a transmissive state that transmits incident light and a reflective state that reflects incident light,
Displaying a first image related to a predetermined event on the display from when the predetermined event occurs until a predetermined operation is detected;
A second image that is not related to the occurrence of the predetermined event is displayed on the display and is then hidden after a predetermined time has elapsed;
Control method. In a portable electronic device having a display capable of switching between a transmissive state that transmits incident light and a reflective state that reflects incident light,
Displaying a first image related to a predetermined event on the display from when the predetermined event occurs until a predetermined operation is detected;
A second image that is not related to the occurrence of the predetermined event is displayed on the display and is then hidden after a predetermined time has elapsed;
Control program to execute

Images