JP2018170753A - Portable electronic apparatus, 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 is overlapped with a first display 2A having a first display area and a display surface side of the first display 2A, and is in a transmitted state and incident light that transmits incident light. A second display 2B for switching between a reflection state for reflecting the light to be generated, and a controller 10 for controlling the display of the first display 2A and the display of the second display 2B are provided. The second display 2B has a second display area having a first area that overlaps with at least a part of the first display area and a second area that does not overlap with the first display area. [Selection diagram] Fig. 5

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 of the aspects includes a first display having a first display area, a display layer side of the first display, a transmission state that transmits incident light, and reflection of incident light. And a controller that controls the display of the first display and the display of the second display. The second display includes a second display area having a first area that overlaps at least a part of the first display area and a second area that does not overlap the first display area.

  A control method according to one of the aspects includes a first display having a first display region, a display surface side of the first display, a transmission state that transmits incident light, and reflection of incident light. A second display that can be switched between a reflective state, the second display having a first region that overlaps at least a part of the first display region, and a second region that does not overlap the first display region. It is the control method performed by the portable electronic device which has a 2nd display area. The control method includes a step of controlling display on the first display, and a step of displaying a first image straddling the first area and the second area on the second display area of the second display. ,including.

  A control program according to one of the aspects is superimposed on a first display having a first display area and a display surface side of the first display, and transmits the incident light and reflects the incident light. A second display that can be switched between a reflective state, the second display having a first region that overlaps at least a part of the first display region, and a second region that does not overlap the first display region. A step of controlling display of the first display on a portable electronic device having a second display area, and a first image straddling the first area and the second area are displayed on the second display of the second display. And displaying in the display area.

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 diagram illustrating an example of a state of the second display according to the embodiment. FIG. 4 is a diagram illustrating an example of display areas of the first display and the second display according to the embodiment. FIG. 5 is a block diagram of the smartphone according to the embodiment. FIG. 6 is a diagram illustrating an example of display control performed by the smartphone according to the embodiment. FIG. 7 is a flowchart illustrating a processing procedure of an example of display control by the smartphone according to the embodiment. FIG. 8 is a diagram illustrating another example of display control performed by the smartphone according to the embodiment. FIG. 9 is a flowchart illustrating another example of the processing procedure of display control by the smartphone according to the embodiment. FIG. 10 is a diagram illustrating another example of display control performed by the smartphone according to the embodiment. FIG. 11 is a flowchart illustrating a processing procedure of an example of display control related to the second display of the smartphone according to the embodiment. FIG. 12 is a flowchart illustrating a processing procedure of an example of display control related to the first display of 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 flowchart illustrating another example of the processing procedure of display control related to the second display of the smartphone according to the embodiment. FIG. 15A is a diagram illustrating an example of display control on the back surface performed by the smartphone according to the embodiment. FIG. 15B is a diagram illustrating an example of display control of the camera portion in FIG. 15A. FIG. 16 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 4. 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 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. The main surface 21 is the front surface (display surface) 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 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 2 </ b> B has a shape similar to the main surface 21 of the housing 20. 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.

  The second display 2B includes a polymer network type liquid crystal (PNLC: Polymer Network Liquid Crystal), electronic paper, and the like. In the present embodiment, a case where the second display 2B is a polymer network type liquid crystal display will be described.

  As shown in FIG. 3, the second display 2 </ b> B includes 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 display 2B has 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 substrate 31 of the second display 2B. In the transmissive state ST1, the second display 2B is in a transparent state because the liquid crystal molecules 33 are aligned in the electric field direction E by application of a voltage. In the transmissive state ST1, the second display 2B transmits incident light. In the transmissive state ST1, the second display 2B emits incident light incident from the outside of the substrate 31 as transmitted light from the opposite substrate 31. In the transmissive state ST1, the second display 2B is 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. The transmissive state ST1 includes a state in which the user can visually recognize the back of the second display 2B through the second display 2B. The transmissive state ST1 may include a translucent state.

  The reflection state ST2 is a state in which no voltage is applied to the substrate 31 of the second display 2B. In the reflective state ST <b> 2, the second display 2 </ b> B reflects and confuses light by inducing an irregular state of the liquid crystal molecules 33 due to the action of the network polymer network 34 inside the liquid crystal layer 32. In the reflective state ST2, the second display 2B can exhibit an opaque state due to light reflection and scattering by the liquid crystal molecules 33. When the second display 2B is in the reflective state ST2, the opaque portion of the second display 2B can be visually recognized by the user 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. Note that 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 display 2B is in a transparent state by application of a voltage is illustrated, but the second display 2B is in a transmission state ST1 in a state where no voltage is applied, and in a state where a voltage is applied Therefore, the opposite configuration may be adopted in which the reflection state ST2 is obtained. In the following description, it is assumed that the second display 2B is in the transmission state ST1 when a voltage is applied to the substrate 31, and that the second display 2B is in the reflection state ST2 when no voltage is applied to the substrate 31. .

  In the present embodiment, the second display 2B describes a case where 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. It is not limited to this. For example, the second display 2B may use a material that exhibits a color different from white.

  FIG. 4 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. 4, 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 includes an area of the second display area 300 that overlaps the first display area 200 of the first display 2A. The second area 302 includes an area of the second display area 300 that does not overlap the first display area 200. The second area 302 includes 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 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”.

  FIG. 5 is a block diagram of the smartphone 1 according to the embodiment. The smartphone 1 includes a first display 2A, a second display 2B, 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, and a storage 9. A controller 10, a speaker 11, cameras 12 and 13, a connector 14, and a motion sensor 15.

  The first display 2A displays characters, images, symbols, graphics, and the like. The second display 2B displays 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 display 2B displays an image that decorates 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 the proximity sensor 5.

  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 and setting data 9Z. The setting data 9Z includes information related to various settings related to the operation of the smartphone 1.

  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 display 2B. 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.

  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 an image to be displayed on the second display 2B, a display position, 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 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. The detection unit includes, for example, the touch screen 2C, the button 3, the illuminance sensor 4, the proximity sensor 5, the microphone 8, the camera 12, the camera 13, and the motion sensor 15, but is not limited thereto.

  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 captures an object facing the back face.

  The connector 14 is a terminal to which another device is connected. The connector 14 may be a general-purpose terminal such as a universal serial bus (USB), a high-definition multimedia interface (HDMI) (registered trademark), a light peak (thunderbolt (registered trademark)), or 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.

  In FIG. 5, 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. 5, 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. 5 may be stored in a non-transitory storage medium that can be read by a reading device 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 shown in FIG. 5 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. 5, the smartphone 1 includes the button 3, but the smartphone 1 may not include the button 3. In the example illustrated in FIG. 5, the smartphone 1 includes two cameras, but the smartphone 1 may include only one camera or may not include a camera.

  FIG. 6 is a diagram illustrating an example of display control performed by the smartphone 1 according to the embodiment. The smartphone 1 displays the home screen 40 on the first display 2A as shown in step S21 of FIG. In step S21, the smartphone 1 sets the entire second display area 300 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 view the home screen 40 displayed on the first display 2A via the transparent second display 2B by visually recognizing the emitted light.

  When the display condition of the first image 50 is satisfied, the smartphone 1 displays the first image 50 on the second display 2B as shown in step S22. The display conditions for the first image 50 include, for example, conditions such as whether to display the first image 50 and the timing for displaying the first image 50. The display condition of the first image 50 includes, for example, a condition for detecting a first operation by a user for switching display related to the first image 50. The first 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. Security can be ensured by setting the display condition to an operation set by the user of the own device. When the display of the first image 50 is valid, the smartphone 1 displays the first image 50 in a predetermined area of the second display area 300 that overlaps a part of the home screen 40 of the first display 2A. The smartphone 1 displays the first image 50 straddling the first area 301 and the second area 302 of the second display area 300 in the second display area 300.

  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. 6, the case where the first image 50 is an image of a clock application will be described, but the present invention is not limited to this. For example, the first image 50 may include a still image, a moving image, and the like. The transmission part 51 of the first image 50 includes images such as clock numbers, characters, and frames. The reflection part 52 of the first image 50 includes an image such as a clock background. The smartphone 1 may display the portion of the first display area 200 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 visually recognize the transmissive part 51 in black by making the back of the transmissive part 51 of the first image 50 black.

  The smartphone 1 can hide a part of the first display area 200 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 main surface 21 on the second region 302 of the second display region 300 that cannot be displayed on the first display 2 </ b> A, that is, on the front panel 22. The smartphone 1 can realize display across the first display 2A and the front panel 22 by combining the display of the first display 2A and the second display 2B, and thus can diversify the display. The smartphone 1 can improve external light visibility and suppress power consumption by using a polymer network type liquid crystal as the second display 2B. When the display condition of the first image 50 is the detection of the first operation, the smartphone 1 can switch the display and non-display of the first image 50 by the user's operation without reducing the convenience. The display can be diversified.

  The first image 50 includes an image indicating a boundary between the first image 50 and the display on the first display 2A. The first image 50 includes an image indicating a boundary between the first image 50 and the front panel 22. In the example shown in FIG. 6, the first image 50 includes an image showing a ring-shaped frame by the transmission part 51. The smartphone 1 uses the fact that the first image 50 is displayed on the second display 2B by displaying the first image 50 and the boundary between the front panel 22 and the display of the first display 2A on the second display 2B. Can be recognized.

  FIG. 7 is a flowchart illustrating a processing procedure of an example of display control by the smartphone 1 according to the embodiment. The processing procedure shown in FIG. 7 is realized by the controller 10 executing the control program 9A. The processing procedure shown in FIG. 7 is repeatedly executed by the controller 10.

  As shown in FIG. 7, the controller 10 of the smartphone 1 determines whether or not the display condition of the first image 50 is satisfied based on the setting content of the setting data 9Z, the display state of the first display 2A, and the like (step) S101). If the controller 10 determines that the display condition of the first image 50 is not satisfied (No in step S101), the processing procedure illustrated in FIG. If the controller 10 determines that the display condition of the first image 50 is satisfied (Yes in step S101), the process proceeds to step S102.

  The controller 10 displays the first image 50 on the second display 2B (step S102). For example, the controller 10 determines that the portion of the second display region 300 corresponding to the transmissive portion 51 of the first image 50 is in the transmissive state ST1, and the portion of the second display region 300 corresponding to the reflective portion 52 of the first image 50 is in the reflective state. In ST2, the image is displayed on the second display 2B.

  When the controller 10 displays the first image 50 on the second display 2B, the controller 10 determines whether or not the erasure condition for the first image 50 is satisfied (step S103). The erasing conditions for the first image 50 include, for example, conditions for erasing the first image 50. The erasing conditions for the first image 50 include, for example, conditions for detecting an erasing operation by a user for erasing the first image 50. The erasing operation includes, for example, operations such as double tap, long touch, slide, flick, shake, and grip. If the controller 10 determines that the erasing conditions for the first image 50 are not satisfied (No in step S103), the controller 10 returns the process to step S102 already described. If the controller 10 determines that the erasure condition for the first image 50 is satisfied (Yes in step S103), the process proceeds to step S104.

  The controller 10 deletes the first image 50 displayed on the second display 2B (step S104). For example, the controller 10 causes the portion of the second display area 300 corresponding to the reflective portion 52 of the first image 50 to transition from the reflective state ST2 to the transmissive state ST1. Conversely, the controller 10 may erase the first image 50 by causing the portion of the second display area 300 corresponding to the transmissive portion 51 of the first image 50 to transition from the transmissive state ST1 to the reflective state ST2. When the controller 10 deletes the first image 50, the processing procedure shown in FIG.

  FIG. 8 is a diagram illustrating another example of display control performed by the smartphone 1 according to the embodiment. As shown in step S31 of FIG. 8, the smartphone 1 sets the first display 2A to a non-display state (sleep state). When the first display 2A is in a non-display state, the smartphone 1 can suppress power consumption of the first display 2A, but the first display 2A is visually recognized by the user as a black screen, a boring screen, or the like. I will let you.

  As shown in step S32, the smartphone 1 can display the second image 60 on the second display 2B. The second image 60 includes an image that decorates the appearance of the smartphone 1. 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. The transmission part 61 may include a translucent part of the second image 60.

  In the example illustrated in FIG. 8, the second image 60 realizes a marble pattern of a transparent portion and an opaque white portion by changing the pixel density of the transmissive portion 61 and the reflective portion 62. When the first display 2A is in a non-display state and the display condition of the second image 60 is satisfied, the smartphone 1 can display the marble-patterned second image 60 on the entire surface of the second display area 300 of the second display 2B. The smartphone 1 can improve the design in a state where the power consumption of the first display 2 </ b> A is suppressed by hiding the non-displayed first display 2 </ b> A with the second image 60. The smart phone 1 can suppress an increase in power consumption during standby and improve external light visibility by using a polymer network type liquid crystal, electronic paper, or the like as the second display 2B. The smartphone 1 can hide the illuminance sensor 4, the proximity sensor 5, and the camera 12 provided on the front panel 22 by the second image 60. As a result, the smartphone 1 can improve the design by concealing the hole or the like of the front panel 22.

  When the smartphone 1 displays the second image 60 on the second display 2B, the second image 60 can be deleted from the second display 2B when the first display 2A transitions from the non-display state to the display state. . The smartphone 1 can switch from displaying the second image 60 on the second display 2B to displaying on the first display 2A.

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

  As illustrated in FIG. 9, the controller 10 of the smartphone 1 determines whether or not the display condition of the second image 60 is satisfied based on the setting content of the setting data 9Z (step S201). The display condition of the second image 60 includes, for example, a condition for detecting a second operation by the user for switching display related to the second image 60. The second operation 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). When the controller 10 determines that the display condition of the second image 60 is not satisfied (No in step S201), the controller 10 ends the processing procedure illustrated in FIG. If the controller 10 determines that the display condition of the second image 60 is satisfied (Yes in step S201), the process proceeds to step S202.

  The controller 10 determines whether or not the first display 2A is in a non-display state (step S202). When it is determined that the first display 2A is not in the non-display state (No in step S202), the controller 10 ends the processing procedure illustrated in FIG. If the controller 10 determines that the first display 2A is in the non-display state (Yes in step S202), the process proceeds to step S203.

  The controller 10 displays the second image 60 that decorates the appearance of the main surface 21 on the second display area 300 of the second display 2B (step S203). For example, the controller 10 determines that 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. In ST2, the image is displayed on the second display 2B.

  When the controller 10 displays the second image 60 on the second display 2B, the controller 10 determines whether or not the first display 2A is in a display state (step S204). When it is determined that the first display 2A is not in the display state (No in step S204), the controller 10 returns the process to step S204 already described. That is, since the first display 2A is in a non-display state, the controller 10 continues to display the second image 60 on the second display 2B. If the controller 10 determines that the first display 2A is in the display state (Yes in step S204), the controller 10 proceeds to step S205.

  The controller 10 deletes the second image 60 displayed on the second display 2B (step S205). For example, the controller 10 causes the portion of the second display area 300 corresponding to the reflection part 62 of the second image 60 to transition from the reflection state ST2 to the transmission state ST1. For example, when the second image 60 is displayed on the entire surface of the second display 2B, the controller 10 changes the entire surface of the second display 2B to the transmissive state ST1, thereby making the entire surface of the second display 2B transparent. . When the controller 10 deletes the second image 60, the processing procedure shown in FIG.

  For example, when the display condition of the second image 60 is the detection of the second operation, the smartphone 1 can switch between the display by the first display 2A and the display by the second display 2B according to the operation of the user. Therefore, it is possible to diversify the display without reducing convenience.

  In the example illustrated in FIG. 9, the controller 10 displays the second image 60 on the second display 2B and then erases the second image 60 when the first display 2A enters the display state. However, it is not limited to this. For example, when the controller 10 detects a second operation or the like while displaying the second image 60, the controller 10 deletes the second image 60 on the second display 2B and makes the second display 2B transparent (second image). The portion of the second display area 300 corresponding to the 60 reflecting portions 62 may be changed from the reflective state ST2 to the transmissive state ST1, and the first display 2A may be changed to the display state.

  FIG. 10 is a diagram illustrating another example of display control performed by the smartphone 1 according to the embodiment. The smartphone 1 displays the home screen 40 on the first display 2A as shown in step S41 of FIG. In step S41, the smartphone 1 sets all the second display areas 300 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 view the home screen 40 displayed on the first display 2A via the transparent second display 2B by visually recognizing the emitted light.

  When the first condition is satisfied, the smartphone 1 transitions at least the first area 301 of the second display 2B from the transmission state ST1 to the reflection state ST2 while maintaining the display of the first display 2A as shown in step S42. Can be made. The first condition includes, for example, conditions such as detection of an operation by a predetermined user, detection of a preset date and time, and the like. The first condition includes, for example, a condition for detecting a third operation by the user for switching the display related to the second display 2B. The third operation includes, for example, operations such as double tap, long touch, slide, flick, shake, and grip. When the first condition is satisfied, the smartphone 1 can hide the display content of the first display 2A by the second display 2B. The smartphone 1 can use the second display 2B as privacy glass. In the example illustrated in FIG. 10, the smartphone 1 causes all of the second display area 300 of the second display 2B to transition to the reflection state ST2, but is not limited thereto. For example, the smartphone 1 may transition only the first area 301 of the second display area 300 to the reflection state ST2. The smartphone 1 can hide the illuminance sensor 4, the proximity sensor 5, and the camera 12 provided on the front panel 22 by transitioning the entire second display area 300 of the second display 2 </ b> B to the reflection state ST <b> 2.

  If the smartphone 1 transitions the second display area 300 of the second display 2B to the reflection state ST2, and then satisfies the release condition of the reflection state ST2, the smartphone 1 causes the second display area 300 to transition from the reflection state ST2 to the transmission state ST1. . The release conditions include, for example, conditions such as detection that the release time has elapsed since the transition to the reflection state ST2 and detection of a predetermined release operation. The release condition includes, for example, a condition for detecting a release operation by the user for releasing the reflection state ST2 of the second display 2B. The release operation includes, for example, operations such as double tap, long touch, slide, flick, shake, and grip. When the release condition is satisfied, the smartphone 1 causes the second display area 300 to transition from the reflection state ST2 to the transmission state ST1. As a result, as shown in step S41, the smartphone 1 is in a state where the display on the first display 2A is visible. When the smartphone 1 is configured to be in the reflective state ST2 when no potential is applied to the second display 2B, the smartphone 1 can suppress power consumption. For example, the user may want to temporarily hide the display of the smartphone 1 due to the approach of another person or the like. In such a case, when the smartphone 1 detects an operation by a predetermined user, the display of the first display 2A can be temporarily hidden by the second display 2B.

  When the predetermined condition is satisfied in the state of step S41, the smartphone 1 can provide a function of restricting the acceptance of operations on the touch screen 2C, the button 3, and the like and causing the first display 2A to transition from the display state to the non-display state. . If the predetermined condition is satisfied, the smartphone 1 causes the first display 2A to transition to the non-display state as shown in step S43. In step S43, the smartphone 1 sets all the second display areas 300 of the second display 2B to the transmissive state ST1. As a result, the user can visually recognize the smartphone 1 in which the first display 2A is in the non-display state (sleep state).

  When the smartphone 1 detects an operation on the touch screen 2C, the button 3, or the like in the state of step S43, as shown in step S44, the smartphone 1 displays the lock screen 41 on the first display 2A and accepts only the operation for releasing the restriction. . The lock screen 41 is a screen indicating that operations on the touch screen 2C, the button 3, and the like are restricted, for example. In the example illustrated in FIG. 10, a case where the lock screen 41 displays information indicating a clock and a key will be described, but the present invention is not limited thereto. In step S44, the smartphone 1 sets the entire second display area 300 of the second display 2B to the transmissive state ST1. As a result, the user can visually recognize the lock screen 41 displayed on the first display 2A via the transparent second display 2B by visually recognizing the emitted light.

  When the smartphone 1 detects an operation for releasing the restriction of the smartphone 1 in the state of step S44, the smartphone 1 erases the lock screen 41 of the first display 2A, and displays the home screen 40 on the first display 2A as shown in step S41. indicate. In step S41, the smartphone 1 sets all the second display areas 300 of the second display 2B to the transmissive state ST1. As a result, the smartphone 1 receives the operation on the home screen 40 and the like after the restriction is released.

  For example, since the first display 2A is hidden by the second display 2B in the state of step S42, the smartphone 1 does not transition the first display 2A from the display state to the non-display state even if a predetermined condition is satisfied. As a result, the smartphone 1 can temporarily hide the display of the first display 2A by a method different from the sleep state. The smartphone 1 can eliminate the user's release operation by automatically releasing the mask by the second display 2B as the release time of the reflection state ST2 elapses.

  For example, when the cancellation condition of the reflective state ST2 is detected as a cancellation operation determined by the user, the smartphone 1 changes the second display 2B from the reflective state ST2 to the transmissive state ST1 only for the user's operation. Since switching can be performed in accordance with this, it is possible to diversify the display while ensuring security.

  FIG. 11 is a flowchart illustrating an example of a processing procedure of display control related to the second display 2B of the smartphone 1 according to the embodiment. The processing procedure shown in FIG. 11 is realized by the controller 10 executing the control program 9A. The processing procedure shown in FIG. 11 is repeatedly executed by the controller 10.

  As illustrated in FIG. 11, the controller 10 of the smartphone 1 causes the second display 2B to transition to the transmissive state ST1 (step S301). For example, the controller 10 applies a voltage to the substrate 31 of the second display 2B, thereby causing the entire second display region 300 to transition to the transmissive state ST1. When the controller 10 causes the second display 2B to transition to the transmissive state ST1, the process proceeds to step S302.

  The controller 10 determines whether or not the first display 2A is in a display state (step S302). When it is determined that the first display 2A is not in the display state (No in step S302), the controller 10 ends the processing procedure illustrated in FIG. If the controller 10 determines that the first display 2A is in the display state (Yes in step S302), the controller 10 proceeds to step S303.

  The controller 10 determines whether or not the first condition of the second display 2B is satisfied (step S303). For example, the controller 10 determines that the first condition of the second display 2B is satisfied when a predetermined operation, a preset date and time, and the like are detected. When it is determined that the first condition of the second display 2B is not satisfied (No in step S303), the controller 10 ends the processing procedure illustrated in FIG. If the controller 10 determines that the first condition of the second display 2B is satisfied (Yes in step S303), the process proceeds to step S304.

  The controller 10 changes the second display 2B from the transmission state ST1 to the reflection state ST2 while maintaining the display of the first display 2A (step S304). For example, the controller 10 causes the entire second display region 300 to transition from the transmissive state ST1 to the reflective state ST2 by stopping the application of voltage to the substrate 31 of the second display 2B. When the controller 10 causes the second display 2B to transition to the reflection state ST2, the process proceeds to step S305.

  The controller 10 determines whether or not the release condition for the reflection state ST2 of the second display 2B is satisfied (step S305). For example, the controller 10 determines that the release condition of the reflection state ST2 is satisfied when the release time has elapsed since the transition to the reflection state ST2 and when a predetermined release operation or the like is detected. If the controller 10 determines that the release condition of the reflection state ST2 is not satisfied (No in step S305), the controller 10 maintains the reflection state ST2 of the second display 2B by repeating the process of step S305. If the controller 10 determines that the release condition of the reflection state ST2 is satisfied (Yes in step S305), the process proceeds to step S306.

  The controller 10 changes the second display 2B from the reflection state ST2 to the transmission state ST1 while maintaining the display of the first display 2A (step S306). For example, the controller 10 applies a voltage to the substrate 31 of the second display 2B, thereby causing the entire second display region 300 to transition to the transmissive state ST1. When the controller 10 changes the second display 2B to the transmissive state ST1, the controller 10 ends the processing procedure shown in FIG.

  FIG. 12 is a flowchart illustrating an example of a processing procedure of display control related to the first display 2A of the smartphone 1 according to the embodiment. The processing procedure shown in FIG. 12 is realized by the controller 10 executing the control program 9A. The processing procedure shown in FIG. 12 is repeatedly executed by the controller 10. The processing procedure shown in FIG. 12 is executed in parallel with the processing procedure shown in FIG.

  As shown in FIG. 12, the controller 10 of the smartphone 1 determines whether or not the first display 2A is in a display state (step S401). When it is determined that the first display 2A is not in the display state (No in step S401), the controller 10 ends the processing procedure illustrated in FIG. If the controller 10 determines that the first display 2A is in the display state (Yes in step S401), the controller 10 proceeds to step S402.

  The controller 10 determines whether or not a predetermined condition for switching the first display 2A from the display state to the non-display state is satisfied (step S402). When it is determined that the predetermined condition is not satisfied (No in step S402), the controller 10 ends the processing procedure illustrated in FIG. If it is determined that the predetermined condition is satisfied (Yes in step S402), the controller 10 advances the process to step S403.

  The controller 10 determines whether or not the second display 2B is in the reflective state ST2 (step S403). If the controller 10 determines that the second display 2B is in the reflection state ST2 (Yes in step S403), the process proceeds to step S404. The controller 10 maintains the display state of the first display 2A (step S404) and ends the processing procedure shown in FIG.

  If the controller 10 determines that the second display 2B is not in the reflection state ST2 (No in step S403), the process proceeds to step S405. The controller 10 causes the first display 2A to transition from the display state to the non-display state (step S405). The controller 10 executes a lock process (step S406). The lock process includes, for example, a process for restricting acceptance of operations on the touch screen 2C, the button 3, and the like. The process for restricting the acceptance of the operation may be such that the controller 10 does not accept the operation of the touch screen 2C, or may be ignored even if the controller 10 receives the operation of the touch screen 2C. In the lock process, for example, the lock screen 41 is displayed on the first display 2A, and the lock process is terminated when the user is authenticated. When the lock process ends, the controller 10 ends the processing procedure shown in FIG.

  FIG. 13 is a diagram illustrating another example of display control performed by the smartphone 1 according to the embodiment. The smartphone 1 displays the home screen 40 on the first display 2A as shown in step S51 of FIG. In step S51, when the display condition of the first image 50 is satisfied, the smartphone 1 displays the first image 50 on the second display 2B. When the display condition of the first image 50 is satisfied, the smartphone 1 displays the first image 50 in a predetermined area of the second display area 300 that overlaps a part of the home screen 40 of the first display 2A. The smartphone 1 displays the first image 50 straddling the first area 301 and the second area 302 of the second display area 300 in the second display area 300. As a result, the user can visually recognize the home screen 40 displayed on the first display 2A and the first image 50 displayed on the second display 2B.

  When the first condition is satisfied, the smartphone 1 maintains the display of the first display 2A and maintains the display of the first image 50 in the second display area 300 of the second display 2B as shown in step S52. The entire region can be transitioned from the transmission state ST1 to the reflection state ST2. The smartphone 1 can hide the illuminance sensor 4, the proximity sensor 5, and the camera 12 provided on the front panel 22 by the area of the second display area 300 that has been changed to the reflection state ST <b> 2. As a result, the smartphone 1 can hide the display content of the first display 2A by the second display 2B and allow the user to visually recognize only the first image 50 displayed on the second display 2B. The smartphone 1 can cause the user to visually recognize the portion of the second display 2B not displaying the first image 50 by the color of the second display 2B in the reflection state ST2. Therefore, the smartphone 1 can improve the diversity of display modes.

  FIG. 14 is a flowchart illustrating another example of the processing procedure of the display control related to the second display 2B of the smartphone 1 according to the embodiment. The processing procedure shown in FIG. 14 is realized by the controller 10 executing the control program 9A. The processing procedure shown in FIG. 14 is repeatedly executed by the controller 10.

  As illustrated in FIG. 14, the controller 10 of the smartphone 1 displays the first image 50 on the second display 2B, and transitions the region of the second display 2B that does not display the first image 50 to the transmissive state ST1 (Step S501). ). When the process of step S501 ends, the controller 10 advances the process to step S502.

  The controller 10 determines whether or not the first display 2A is in a display state (step S502). When it is determined that the first display 2A is not in the display state (No in step S502), the controller 10 ends the processing procedure illustrated in FIG. When it is determined that the first display 2A is in the display state (Yes in step S502), the controller 10 advances the process to step S503.

  The controller 10 determines whether or not the first condition of the second display 2B is satisfied (step S503). For example, the controller 10 determines that the first condition of the second display 2B is satisfied when a predetermined operation, a preset date and time, and the like are detected. When it is determined that the first condition of the second display 2B is not satisfied (No in step S503), the controller 10 ends the processing procedure illustrated in FIG. If it is determined that the first condition of the second display 2B is satisfied (Yes in step S503), the controller 10 advances the process to step S504.

  The controller 10 maintains the display of the first display 2A and the display of the first image 50 of the second display 2B, and reflects the region of the second display 2B not displaying the first image 50 from the transmission state ST1. Transition to ST2 (step S504). When the process of step S504 ends, the controller 10 advances the process to step S505.

  The controller 10 determines whether or not the release condition for the reflection state ST2 of the second display 2B is satisfied (step S505). For example, the controller 10 determines that the release condition of the reflection state ST2 is satisfied when the release time has elapsed since the transition to the reflection state ST2 and when a predetermined release operation or the like is detected. When the controller 10 determines that the release condition of the reflection state ST2 is not satisfied (No in step S505), the controller 10 maintains the reflection state ST2 of the second display 2B by repeating the process of step S505. If it is determined that the release condition for the reflection state ST2 is satisfied (Yes in step S505), the controller 10 advances the process to step S506.

  The controller 10 maintains the display of the first display 2A and the display of the first image 50 of the second display 2B, and changes the region of the second display 2B not displaying the first image 50 from the reflection state ST2 to the transmission state. Transition to ST1 (step S506). When the process of step S506 ends, the controller 10 ends 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.

  For example, each program shown in FIG. 5 may be divided into a plurality of modules, or may be combined with other programs.

  In the above embodiment, the smartphone 1 has been described with respect to the case where the first image 50 straddles 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 embodiment, the smartphone 1 has been described with respect to the case where the substantially rectangular second display 2B is used. However, the present invention is not limited to this. For example, the smartphone 1 may use the second display 2B having a shape such as a polygon, an ellipse, or a star. In this case, the smartphone 1 can hide the first display 2A by the second display 2B having a unique shape.

  In the above-described embodiment, the smartphone 1 has described the case where the first display 2A is hidden by transitioning all the areas of the second display area 300 of the second display 2B from the transmission state ST1 to the reflection state ST2. However, the present invention is not limited to this. For example, the smartphone 1 may hide a part or all of the first display 2A by causing the second display 2B to display an image having the reflection unit 52 of the first image 50.

  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 2B is provided on the front panel 22 of the housing 20, but the present invention is not limited to this. For example, the smartphone 1 may further include the second display 2B on the back surface (back face) of the housing 20.

  FIG. 15A is a diagram illustrating an example of display control on the back surface performed by the smartphone 1 according to the embodiment. FIG. 15B is a diagram illustrating an example of display control of the camera 13 portion in FIG. 15A. As illustrated in FIG. 15A, the smartphone 1 includes a second display 2 </ b> B on the back surface 26 of the housing 20. The back surface 26 is a surface opposite to the front surface of the smartphone 1. The second display 2 </ b> B is overlaid on the entire back surface 26 of the housing 20. The smartphone 1 has a camera 13 as an out camera on the back surface 26 of the housing 20. The second display 2B covers the camera 13.

  In the example shown in step S61 of FIG. 15A, the smartphone 1 sets the entire surface of the second display 2B on the back surface 26 to the reflection state ST2. The smartphone 1 causes the user to visually recognize the second display 2 </ b> B on the back surface 26 in a clouded state by reflecting and confusing light of outside light.

  The second display 2B has a second display area 300. The second display region 300 is a region that covers the entire back surface 26 of the housing 20. The second display area 300 includes a portion 310 of the second display 2B that covers the camera 13 on the back surface 26. The second display 2B can hide the camera 13 from the user when the portion 310 of the second display area 300 is in the reflective state ST2. For example, since the portion of the housing 20 provided with the camera 13 is a camera hole, the second display 2B in the reflective state ST2 may not be completely hidden when the camera hole is clouded. That is, the second display 2 </ b> B in the reflective state ST <b> 2 may not be completely hidden from the user because the camera 13 is seen through the portion 310. The smart phone 1 can improve that the camera 13 is transparent in the portion 310 of the reflection state ST2 as the air gap is provided between the camera 13 and the second display 2B.

  In step S61, the smartphone 1 hides the camera 13 by the second display 2B on the back surface 26 by setting the entire surface of the second display 2B on the back surface 26 to the reflection state ST2. For example, the user has activated the camera application of the smartphone 1.

  In step S62, when the camera application is activated, the smartphone 1 causes the portion 310 of the second display 2B to transition from the reflection state ST2 to the transmission state ST1. In the example illustrated in FIG. 15B, the smartphone 1 increases the ratio of the transmission state ST1 in the order of the states ST11, ST12, ST13, and ST14, like the diaphragm blades of a general camera, on the portion 310 of the second display 2B. Yes. Thus, the smartphone 1 can be hidden by the second display 2B when the camera 13 is not used, and can be stopped from being hidden by the second display 2B when the camera 13 is used. Since the smart phone 1 should just make the 2nd display 2B of the back surface 26 into reflection state ST2, the power consumption of the 2nd display 2B of the back surface 26 can be suppressed. As a result, by using the second display 2B on the back surface 26 as the camera cover of the camera 13, the smartphone 1 can suppress the increase in power consumption and improve the design on the back surface 26.

  The control for hiding the camera 13 by the second display 2B can also be applied to the camera 12 on the main surface 21 of the housing 20. For example, when the camera 12 on the main surface 21 of the housing 20 is hidden by the second display 2B, the smartphone 1 changes only the portion of the second display 2B covering the camera 12 from the reflective state ST2 to the transmissive state ST1. May be.

  In the above embodiment, the smartphone 1 has been described with respect to the case where the second display 2B 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 2 </ b> B on a part of the back surface 26. In this case, the second display 2B may be provided in a region including at least a portion covering the camera 13 on the back surface 26. Furthermore, the second display 2B may exhibit a color that is the same as or similar to the color of the back surface 26 of the housing 20 in the reflective state ST2. Furthermore, the smartphone 1 may overlap the first display 2 </ b> A and the second display 2 </ b> B on the back surface 26 of the housing 20.

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

  FIG. 16 is a diagram illustrating another example of the second display area 300 of the second display 2B. As shown in FIG. 16, 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.

  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 2nd display 2C Touch screen 3 Button 4 Illuminance sensor 5 Proximity sensor 6 Communication unit 7 Receiver 8 Microphone 9 Storage 9A Control program 9Z Setting data 10 Controller 11 Speaker 12, 13 Camera 14 Connector 15 Motion sensor 20 housing

Claims (11)

A first display having a first display area;
A second display that is overlaid on the display surface side of the first display and that is switched between a transmissive state that transmits incident light and a reflective state that reflects incident light;
A controller for controlling display of the first display and display of the second display;
With
The second display includes a second display area having a first area that overlaps at least a part of the first display area and a second area that does not overlap the first display area. The portable electronic device according to claim 1, wherein the controller displays a first image straddling the first area and the second area on the second display area of the second display. 3. The portable electronic device according to claim 2, wherein when the first image is displayed on the second display, the controller hides a display of a portion where the first image overlaps in the first display area of the first display. machine. The portable electronic device according to claim 2, wherein the first image includes an image for indicating a boundary between the first image and a display on the first display. The portable electronic device according to claim 1, wherein the first area of the second display area is an area that overlaps all the areas of the first display area. The portable electronic device according to claim 5, wherein when the first display is in a non-display state, the controller displays a second image that decorates an appearance of the portable electronic device in the second display area. The portable electronic device according to claim 5, wherein the second display is provided on substantially the entire predetermined surface of the portable electronic device. The portable electronic device according to claim 5, wherein the controller causes the entire first region of the second display to be in the reflective state while maintaining a display state of the first display. The controller is
When the first display is in the display state and the predetermined condition is satisfied, the first display is transitioned from the display state to the non-display state,
When the first display is in the display state and the entire first area of the second display is in the reflective state, the first display is displayed even if the predetermined condition is satisfied. The portable electronic device according to claim 8, wherein the portable electronic device is not changed from a non-display state to a non-display state. A first display having a first display area; and a second display that is superimposed on a display surface side of the first display and is switched between a transmissive state that transmits incident light and a reflective state that reflects incident light. The second display is a portable electronic device having a second display area having a first area that overlaps at least a part of the first display area and a second area that does not overlap the first display area. A control method to be executed,
Controlling the display of the first display;
Displaying a first image straddling the first area and the second area on the second display area of the second display;
Control method. A first display having a first display area; and a second display that is superimposed on a display surface side of the first display and is switched between a transmissive state that transmits incident light and a reflective state that reflects incident light. The second display is a portable electronic device having a second display area having a first area that overlaps at least part of the first display area and a second area that does not overlap the first display area. ,
Controlling the display of the first display;
Displaying a first image straddling the first area and the second area on the second display area of the second display;
Control program to execute