JP2020118751A - Display device - Google Patents

Abstract

To reduce the width of a boundary between display surfaces when a foldable display device having two display surfaces is opened.SOLUTION: A first display surface 12 is provided on a first housing 11 and a second display surface 22 is provided on a second housing 21. A connecting part 30 foldably connects the first housing 11 and the second housing 21, with the first display surface 12 and the second display surface 22 facing outward. A third display surface 33 is provided on the outer circumference of the connecting part 30. The third display surface 33 is continuous to the first display surface 12 and provided at a position where it is hidden in a space between the second housing 21 and the connecting part 30 when a smartphone 1 opens. The second housing 21 has, between two cover parts 32 at an end on the connecting part 30 side, an opposite surface 23 that faces the third display surface 33 when the smartphone 1 opens. The opposite surface 23 is shaped to form a portion of the inner circumferential surface of a cylinder in order to face the third display surface 33 that is shaped to form a portion of the outer circumferential surface of a column.SELECTED DRAWING: Figure 1

Description

The present invention relates to a foldable display device.

Foldable display devices are known. Patent Document 1 discloses a display device including an intermediate fixing unit that fixes the angles of two foldable display panels at a predetermined angle.

JP 2001-175191 A

In a display device that can be folded and has two display surfaces like the display device of Patent Document 1, for example, when the two display surfaces are aligned, the smaller the boundary between the display surfaces is, the more the display surface becomes one display surface. You can see it neatly.
Therefore, it is an object of the present invention to reduce the boundary between the display surfaces when the foldable display device having two display surfaces is opened.

To achieve the above object, the present invention provides a plate-shaped first housing provided with a first display surface, a plate-shaped second housing provided with a second display surface, and the first housing. A body and the second housing, the first display surface and the second display surface being outwardly foldably connected, and a connecting portion provided with a third display surface continuous with the first display surface. The third display surface provides a display device that is hidden in a gap between the second housing and the connecting portion when both housings are opened.

Further, the third display surface has a shape forming a part of an outer peripheral surface of a cylinder, and the second housing is opposed to the third display surface when both the housings are opened and is cylindrical. You may have the opposing surface formed in the shape which forms a part of inner peripheral surface.

Further, the connecting portion may have a hollow cylindrical shape, and a circuit may be provided inside.

Further, the connecting portion is located at a position facing the same direction as the second display surface when the both housings are folded, and facing the opposite direction to the second display surface when the both housings are opened. A camera lens may be provided.

In addition, a battery having a cylindrical shape may be provided inside the connecting portion.

Further, the display control unit controls the display in the display area in which the first display surface, the second display surface, and the third display surface are regarded as one display surface according to the opening degree of the both housings. May be.

In addition, the display control unit, when displaying an image in the display area, has a maximum size of the image that fits in the area excluding the portion hidden in the gap while maintaining the aspect ratio. The size may be displayed.

Further, when displaying the image in the display area, the display control unit displays the image in the area excluding a portion hidden in the gap while maintaining the aspect ratio. When the area becomes the smallest, it may be displayed in the maximum size that fits in the display area.

In addition, the display control unit is configured to open the housings from a state where the housings are folded and an image is displayed on the first display surface to a position where the third display surface starts to be hidden in the gap. The display control to the display area may be started.

Further, the display control unit may display an image indicating a boundary between the two images when displaying the two images in the display area.

According to the present invention, it is possible to reduce the boundary between the display surfaces when the foldable display device having two display surfaces is opened.

The figure showing the external appearance of the smartphone which concerns on an Example. Illustration representing a disassembled smartphone Diagram showing how the smartphone opens Diagram showing how the smartphone opens Diagram showing the hardware configuration of the smartphone Diagram showing an example of start control of full screen display Diagram showing an example of full-screen display control The figure showing an example of the operation procedure in full-screen display control. The figure showing an example of the full-screen display control of a modification. Diagram showing an example of a boundary image

[1] Example FIG. 1 shows an appearance of a smartphone 1 according to an example. The smartphone 1 is a foldable two-screen terminal and is an example of the “display device” in the present invention. In FIG. 1, the smartphone 1 in a closed state is shown. The smartphone 1 includes a first display unit 10, a second display unit 20, and a connecting unit 30. In the smartphone 1 in the closed state, the first display unit 10 side is the front side and the second display unit 20 side is the back side.

1A shows the smartphone 1 viewed from the front side, and FIG. 1C shows the smartphone 1 viewed from the back side. In addition, FIG. 1B shows the smartphone 1 viewed from the lower side. In the smartphone 1, the one that comes vertically above (for example, the one with a speaker for a telephone) is the upper side and the one that comes vertically below (for example, one with a microphone for a telephone) is the lower side when normally used. Shall be the side.

When the smartphone 1 is viewed from the front, it has a rectangular shape as shown in FIG. In FIG. 1, the direction along the long side of the smartphone 1 is shown as the X-axis direction, the direction along the short side is shown as the Y-axis direction, and the direction orthogonal to the X-axis direction and the Y-axis direction is shown as the Z-axis direction. In the X-axis direction, the left direction is positive when viewed from the front, in the Y-axis direction, the downward direction is positive when viewed from the front, and in the Z-axis direction, the direction from the front to the back side is the positive direction (FIGS. 1A and 1B). ) And (c) are viewed in the Z-axis positive direction, the Y-axis negative direction, and the Z-axis negative direction, respectively).

The first display unit 10 is a display unit having a plate-shaped first housing 11 and a flat first display surface 12. The second display unit 20 is a display unit having a plate-shaped second housing 21 and a planar second display surface 22. The first housing 11 is provided with a first display surface 12, and the second housing 21 is provided with a second display surface 22. The connecting portion 30 connects the first housing 11 and the second housing 21 in a foldable manner with the first display surface 12 and the second display surface 22 facing outward.

The connecting portion 30 includes a cylindrical portion 31 having a cylindrical shape and a cover portion 32 that covers an opening of the cylindrical portion 31. The shapes of the cylindrical portion 31 and the cover portion 32 will be described in detail with reference to FIG.
FIG. 2 shows the disassembled smartphone 1. 2A shows the second display unit 20 and the cover unit 32 viewed from the front, and FIG. 2B shows the second display unit 20 and the cover unit 32 viewed from the lower side.

The cover portions 32 are provided on the X-axis positive direction side of the second housing 21 and at both ends in the Y-axis direction integrally with the second housing 21. 2C, the first display unit 10 and the cylindrical portion 31 viewed from the front are illustrated, and in FIG. 2D, the first display unit 10 and the cylindrical portion 31 viewed from the lower side are illustrated. The cylindrical portion 31 is provided integrally with the first housing 11 on the X-axis positive direction side of the first housing 11. Note that the term “integral” as used herein may be one manufactured as one component or one in which two components are joined.

The cylindrical portion 31 has a housing portion 311 and a hollow portion 312. The housing 311 is a cylindrical housing. A third display surface 33 is provided on the outer periphery of the housing 311. The third display surface 33 has a shape forming a part of the outer peripheral surface of the cylinder (the surface having the same shape as the outer peripheral surface of the cylindrical portion 31). The third display surface 33 is a display surface continuous with the first display surface 12 and is a second housing when both housings (the first housing 11 and the second housing 21) included in the smartphone 1 are opened. It is provided at a position hidden in the gap between the body 21 and the connecting portion 30.

The flat first display surface 12 and the third display surface 33 in the shape of the outer peripheral surface of the cylinder are smoothly continuous by a continuous transparent member (such as glass). In the lower layer of the first display surface 12 and the third display surface 33, a display element (a liquid crystal or an organic EL (Electro Luminescence) etc.) which is also connected is provided, and the first display surface 12 and the third display surface 33 are provided. Images can be displayed as one display surface 13. How the third display surface 33 is hidden in the gap will be described with reference to FIGS. 3 and 4.

3 and 4 show how the smartphone 1 is opened. 3 shows the smartphone 1 viewed from the lower side, and FIG. 4 shows the smartphone 1 viewed from the front. 3A and FIG. 3A show the smartphone 1 in a closed state, and FIGS. 3B and 4B show the smartphone 1 in an almost opened state. In addition, the smartphone 1 in the closed state is illustrated in FIGS. 3C and 4C.

As shown in FIGS. 3B and 4B, a gap B1 is formed between the second housing 21 and the connecting portion 30 (specifically, the cylindrical portion 31). The second housing 21 has a facing surface 23 facing the third display surface 33 when the smartphone 1 is opened, between the two cover portions 32 and at the end on the connecting portion 30 side. Since the facing surface 23 faces the third display surface 33 that is part of the outer peripheral surface of the cylinder, it is part of the inner peripheral surface of the cylinder.

Since the facing surface 23 has this shape, the gap between the second housing 21 and the connecting portion 30 can be made smaller than in the case where the facing surface has another shape. The third display surface 33 can be viewed by the user as a whole when the smartphone 1 is closed. Note that, in FIG. 4, the third display surface 33 is shown by hatching for easy understanding. As the smartphone 1 opens, the third display surface 33 is hidden in the gap B1 from the middle.

Then, when the smartphone 1 is completely opened, the third display surface 33 is also completely hidden in the gap B1 in this embodiment. On the other hand, even in this state, the first display surface 12 is visible to the user without being hidden by the gap B1. When the smartphone 1 is completely opened, the first display surface 12 and the second display surface 22 are arranged side by side and an image can be displayed as one display surface.

The connecting part 30 is in the shape of a hollow cylinder as described above, and a circuit is provided therein. Specifically, a circuit of an image pickup unit (digital camera) and a circuit of an electricity supply unit (battery) are provided inside the connecting unit 30. As described above, in the present embodiment, the connecting portion 30 can be used not only for connecting the first housing 11 and the second housing 21 but also for storing the circuit.

A lens 41 of the camera is provided inside the connecting portion 30 (cylindrical portion 31) as a component of the image pickup means. When the smartphone 1 is folded, the lens 41 is located at a position facing the same direction as the second display surface 22 (the normal direction A1 of the second display surface 22=the positive Z-axis direction) as shown in FIG. It is provided. This direction is opposite to the direction in which the first display surface 12 faces.

Since the cylindrical portion 31 provided with the lens 41 is integrated with the first housing 11, the orientation relationship with the first display surface 12 does not change even when the smartphone 1 is opened. On the other hand, since the second housing 21 rotates 180 degrees about the cylindrical portion 31 as a rotation axis, the orientation relationship with the second display surface 22 is reversed when the smartphone 1 is opened. That is, when the smartphone 1 is opened, the lens 41 is in the opposite direction (positive in the Z-axis direction) from the second display surface 22 that is oriented in the negative direction in the Z-axis direction as shown in FIG. 3C. Direction).

With the arrangement of the lens 41, it is possible to take an image while looking at the first display surface 12 shown in FIG. 4A when the smartphone 1 is closed, and when the smartphone 1 is open, the first display surface 12 shown in FIG. It is possible to shoot while looking at the first display surface 12 and the second display surface 22. Moreover, when the user shoots himself/herself with the smartphone 1 folded, the user can shoot while looking at the second display surface 22.

As described above, in the smartphone 1, it is possible to take a picture while looking at the display surface when the smartphone 1 is open, when it is closed, when taking a selfie, and when taking another shot. Then, any of the shootings can be performed using the same lens 41. A battery 42 is provided inside the connecting portion 30 as shown in FIG. As the battery 42, a so-called cylinder battery having a cylindrical shape is used so that the battery 42 can be easily housed in the cylindrical casing 311.

As described above, in this embodiment, the connecting portion 30 can be used not only for connecting but also for storing the battery. In addition, since the connecting portion 30, which is a rotating member, has a cylindrical shape as described above, storing the cylinder battery is more effective than storing the prismatic battery without creating a useless gap and making the internal space effective. Can be used for.

FIG. 5 shows the hardware configuration of the smartphone 1. The smartphone 1 is a computer that includes a processor 2, a memory 3, a storage 4, a communication device 5, an input device 6, an output device 7, and a bus 8. Note that the word "apparatus" here can be read as a circuit, a device, a unit, or the like. In addition, each device may include one or more devices, or may not include some devices.

The processor 2 operates an operating system to control the entire computer, for example. The processor 2 may be configured by a central processing unit (CPU) including an interface with peripheral devices, a control device, a calculation device, a register, and the like. Further, the processor 2 reads a program (program code) including an OS (Operating System) and various applications, software modules, data, and the like from the storage 4 and/or the communication device 5 into the memory 3, and according to these, The process of is executed.

The number of processors 2 that execute various processes may be one, or may be two or more, and the two or more processors 2 may execute various processes simultaneously or sequentially. Further, the processor 2 may be implemented by one or more chips. The program may be transmitted from the network via a telecommunication line. The memory 3 is a computer-readable recording medium, and is composed of at least one of a ROM (Read Only Memory), an EPROM (Erasable Programmable ROM), an EEPROM (Electrically Erasable Programmable ROM), a RAM (Random Access Memory), and the like. May be done.

The memory 3 may be called a register, a cache, a main memory (main storage device), or the like. The memory 3 can store the above-mentioned program (program code), software module, data, and the like. The storage 4 is a computer-readable recording medium, and may be composed of at least one of a hard disk drive, a flexible disk, a flash memory (for example, a card, a stick, a key drive), a magnetic strip, and the like.

The storage 4 may be called an auxiliary storage device. The above-described storage medium may be, for example, a database including the memory 3 and/or the storage 4, a server, or another appropriate medium. The communication device 5 is hardware (transmission/reception device) for performing communication between computers via a wired and/or wireless network, and is also called, for example, a network device, a network controller, a network card, a communication module, or the like.

The input device 6 is an input device (for example, a microphone, a switch, a button, a sensor, etc.) that receives an input from the outside. The input device 6 includes a sensor that measures the opening degree (opening angle) of the first housing 11 and the second housing 21. The output device 7 is an output device (for example, a display, a speaker, an LED lamp, etc.) that outputs to the outside. In the smartphone 1, the input device 6 and the output device 7 include a touch screen configured integrally.

This touch screen is provided in each of the first display unit 10 and the second display unit 20, and both display units can accept an input operation by the user. The respective devices such as the processor 2 and the memory 3 are accessible to each other via a bus 8 for communicating information. The bus 8 may be configured with a single bus or different buses between devices.

The smartphone 1 includes hardware such as a microprocessor, a digital signal processor (DSP), an ASIC (Application Specific Integrated Circuit), a PLD (Programmable Logic Device), and an FPGA (Field Programmable Gate Array). May be configured, and the hardware may implement some or all of the functional blocks. For example, the processor 2 may be implemented with at least one of these hardware.

The processor 2 controls the display of images on the first display surface 12, the second display surface 22, and the third display surface 33. The processor 2 is an example of the "display control unit" in the present invention. The processor 2 controls the display of an image in the full-screen display area in which the first display surface 12, the second display surface 22, and the third display surface 33 are regarded as one display surface, for example. Hereinafter, the display of images by this control is called full-screen display.

In the full-screen display, the processor 2 controls the display in the full-screen display area according to the opening degree of the smartphone 1 (opening degree of the first housing 11 and the second housing 21). Specifically, the processor 2 is from the state where the smartphone 1 is folded and the image is displayed on the first display surface 12 to the position where the third display surface 33 starts to be hidden in the gap B1 between the second housing 21 and the connecting portion 30. When the smartphone 1 is opened, display control to the full screen display area is started. This start control of the entire outer surface display will be described with reference to FIG.

FIG. 6 shows an example of start control of full-screen display. FIG. 6A shows the smartphone 1 in a state where the first housing 11 and the second housing 21 are closed. In FIG. 6B, the positional relationship among the first display surface 12, the second display surface 22, and the third display surface 33 in this state is shown on a plane. When the smartphone 1 is closed, the second display surface 22 and the third display surface 33 are separated by the distance L1. In this state, the processor 2 determines that the full-screen display area is not yet formed, and displays the bicycle image C1 only on the first display surface 12.

As the smartphone 1 opens, the distance L1 becomes gradually narrower, and when the smartphone 1 opens to the angle shown in FIG. 6C, the third display surface 33 begins to be hidden in the gap B1 between the second housing 21 and the connecting portion 30. In FIG. 6D, the positional relationship among the first display surface 12, the second display surface 22, and the third display surface 33 in the state shown in FIG. 6C is shown on a plane. Note that in FIG. 6, the bezel (the outer frame portion of the second display surface 22) on the side of the connecting portion 30 of the second display surface 22 is omitted to make the drawing easy to see.

In FIG. 6D, the interval L1 disappears, the second display surface 22 and the third display surface 33 are connected, and one full-screen display area 14 including the three display surfaces is formed. .. When the state of FIG. 6D is reached, the processor 2 switches the display of the image C1 from the display of only the first display surface 12 to the full-screen display in the full-screen display area 14. By switching to the full-screen display in this way, the user can view the image viewed on only the first display surface 12 on the full screen by simply opening the smartphone 1.

In the example of FIG. 6, the processor 2 displays the image C1-1 at the maximum size that can be displayed in the full-screen display area 14 while maintaining the aspect ratio (aspect ratio) of the image C1. Display control when the smartphone 1 is further opened will be described with reference to FIG. 7.
FIG. 7 shows an example of full-screen display control. In FIG. 7A, the image C1-1 displayed in the same full-screen display area 14-1 as in the state of FIG. 6D is shown.

When the smartphone 1 is further opened from this state, the third display surface 33 is hidden in the gap B1 and gradually becomes smaller as shown in FIGS. 7B and 7C, and the display area is also the full-screen display areas 14-2 and 14 The width (length in the direction in which the display surfaces are arranged) becomes gradually smaller as -3. Finally, as shown in FIG. 7D, a state in which the third display surface 33 is no longer visible and one full-screen display area 14-4 is formed only by the first display surface 12 and the second display surface 22. become.

The processor 2 maintains the aspect ratio (aspect ratio) of the image C1 to be displayed on the full screen with the maximum size that can fit in each full screen display area 14-1, 14-2, 14-3, 14-4. (The images C1-1, C1-2, C1-3, and C1-4, respectively) are displayed. These display areas are areas of the first display surface 12, the second display surface 22, and the third display surface 33 excluding the portions hidden by the gap B1.

The shape and size of the full-screen display area change according to the opening degree of the smartphone 1. In this embodiment, the size of the image displayed changes according to the opening degree of the smartphone 1, but the aspect ratio does not change even if the opening degree changes. As a result, the user can always view the image displayed as large as possible without distorting the shape of the image while the smartphone 1 is opened.

FIG. 8 shows an example of an operation procedure in full-screen display control. This operation procedure is started when the smartphone 1 is closed and the image is displayed on the first display surface 12. First, the processor 2 uses the sensor of the input device 6 to measure the opening angle of the first housing 11 and the second housing 21 (step S11). Next, the processor 2 determines whether or not the measured opening angle is equal to or more than a threshold value (step S12).

The opening angle at which the third display surface 33 starts to be hidden in the gap B1 between the second housing 21 and the connecting portion 30 is used as the threshold value. When determining that the opening angle is less than the threshold value (NO), the processor 2 returns to step S11. When the processor 2 determines that the opening angle is equal to or larger than the threshold value (YES), the image displayed on the first display surface 12 is switched to the full-screen display as in the example of FIG. 6 (step S13).

Next, the processor 2 determines whether the opening angle equal to or more than the threshold value is maintained (step S14). When the processor 2 determines that the image is maintained (YES), the image is displayed in a size according to the opening angle (the maximum size that fits in the display area while maintaining the aspect ratio) as in the example of FIG. 7. The entire screen is displayed (step S15), and the process returns to step S14. When determining that the image is not maintained (NO), the processor 2 switches to control for displaying the image displayed on the full screen on the first display surface 12 (step S16), and returns to step S11.

In a foldable display device having two display surfaces, if the two display surfaces are simply arranged, the bezels of the respective display surfaces are sandwiched between them, and the display surfaces are separated by the width of the two bezels. Feeling is lost. In the present embodiment, since the image is displayed on the third display surface 33 hidden in the gap B1 during the full screen display, the bezel does not exist on the third display surface 33 side. As described above, in this embodiment, the boundary between the display surfaces when the display device (smartphone 1) is opened can be made smaller than in the case where the two display surfaces are arranged side by side.

Also, the smartphone 1 is foldable with the display surface facing outward. If the display surfaces face inward, the connecting portion is sandwiched between the display surfaces when the two housings are opened, and the two display surfaces are separated from each other. For example, in the example of FIG. 3, when the two housings are opened, the inner surface (the back surface of the display surface) is separated with the connecting portion 30 interposed therebetween. On the other hand, when the display surfaces are outward, the display surfaces approach each other as the two housings open, so that the display surfaces are easily approached. Therefore, the smartphone 1 has a structure in which the display surface is folded outward.

[2] Modified Example The above-described embodiment is merely an example of the implementation of the present invention, and may be modified as follows.

[2-1] Display Control The processor 2 may perform display control different from that in the embodiment.
FIG. 9 shows an example of full-screen display control of this modification. In FIG. 9A, the processor 2 displays the image C1-4 displayed in the state of FIG. 7D in the same full-screen display area 14-1 as in the state of FIG. 6D. ..

The image C1-4 is an image having the maximum size that can fit in the full-screen display area 14-4 when the smartphone 1 is fully opened and the aspect ratio is maintained. The processor 2 displays the image C1-4 regardless of the opening angle, and also displays the image C1-4 in the full-screen display area 14-4 when the image is fully opened as shown in FIG. 9B.

As described above, in the present modification, when displaying an image in the full screen display area, the processor 2 maintains the aspect ratio of the image and hides the portion hidden in the gap B1 in the full screen display area. In the excluded area, when the full-screen display area becomes the smallest, the maximum size (the size of the image C1-4) that fits in the full-screen display area (full-screen display area 14-4 in the example of FIG. 9) is set. Display it.

In this case, since the image C1-4 is smaller than the full-screen display area until the minimum full-screen display area 14-4 is reached, the processor 2 may display the image C1- in the center of the full-screen display area 14-1, for example. 4 is arranged and displayed. Further, the processor 2 may fix and display the right end of the image C1-4 at the right end of the first display surface 12, for example. According to the latter method, the portion of the image C1-4 displayed on the first display surface 12 does not move and is therefore easy to see.

In addition, in this modification, the size of the image displayed in the full-screen display area is constant and does not change, so that it is easier to see the image displayed in the full-screen while the smartphone 1 is open, compared to the case where the size changes. can do. In addition, also in this modification, the processor 2 performs the start control of the full-screen display described in the embodiment, and thus performs the full-screen display control according to the opening degree of the smartphone 1.

[2-2] Border Display Even when the smartphone 1 is opened and the full-screen display area is formed, an image may be displayed as two display surfaces. In that case, in the smartphone 1, since the bezel does not exist on the side of the third display surface 33 as described above, the boundary between the two display surfaces is small.

Therefore, depending on the image to be displayed, the boundary between the two images may not be recognized, and the contents represented by the entire image may be difficult to understand. For example, when the image of the map application and the image of the web page are displayed, the map image is included in the web page and the boundary between the maps becomes difficult to understand. Therefore, when displaying two images in the full-screen display area, the processor 2 may display a boundary image indicating a boundary between the two images.

FIG. 10 shows an example of the boundary image. In FIG. 10A, the images C2 and C3 having similar background patterns are displayed in the full-screen display area 14. As shown in FIG. 10B, the processor 2 of this modification displays a boundary image D1 that represents the boundary between the images C2 and C3. The boundary image D1 is an elongated black rectangular image. In the example of FIG. 10, the processor 2 displays the boundary image D1 at the end of the first display surface 12 on the second display surface 22 side.

This position is set because the first display surface 12 is slightly larger than the second display surface 22 because the bezel is not provided. However, it is not necessary to limit to this position, and the boundary image D1 may be displayed on the second display surface 22 side. Further, the color and shape of the boundary image need not be limited to the example of FIG. In short, any image may be displayed as the boundary image as long as the boundary between the two images becomes clearer.

In the present modification, by displaying the boundary image, it is possible to prevent the image from being difficult to see due to the inability to recognize the boundary between the two images, as compared with the case where the boundary image is not displayed.

[2-3] Third Display Surface The third display surface 33 provided on the connecting portion 30 was completely hidden in the gap B1 when the smartphone 1 was completely open (fully open state). However, depending on the material and internal structure of the second housing 21, it may be difficult to form the second housing 21 into a sharp shape so as to completely cover the third display surface 33. A part of the display surface 33 may be visible. In that case, the processor 2 causes the first display surface 12, a part (visible portion) of the third display surface 33, and the second display surface 22 to display an image as the full-screen display area even in the fully open state.

[2-4] Category of Invention The present invention is applicable not only to smartphones but also to tablet terminals, for example. The present invention can be applied to any display device having two foldable display surfaces regardless of its use. Further, the present invention can be regarded as an information processing method for realizing the processing executed by those display devices, and also as a program for causing a computer that controls the display devices to function. This program may be provided in the form of a recording medium such as an optical disc having the program stored therein, or may be provided in the form of being downloaded by a computer via a network such as the Internet and installed and made available. May be done.

[2-5] "and", "or"
In the present specification, with respect to a configuration that can be implemented with “A and B” or “A or B”, the configuration described in one expression may be used as the configuration described in the other expression. For example, when "A and B" is described, it may be used as "A or B" as long as it is practicable without inconsistency with other descriptions.

[2-6] Variations of Aspect, etc. Each of the embodiments described in the present specification may be used alone, in combination, or may be switched according to execution. Further, the notification of the predetermined information (for example, the notification of “being X”) is not limited to the explicit notification, and is performed implicitly (for example, the notification of the predetermined information is not performed). Good.

Although the present invention has been described in detail above, it will be apparent to those skilled in the art that the present invention is not limited to the embodiments described herein. The present invention can be implemented as modified and changed modes without departing from the spirit and scope of the present invention defined by the description of the claims. Therefore, the description of the present specification is for the purpose of exemplifying explanation, and does not have any restrictive meaning to the present invention.

DESCRIPTION OF SYMBOLS 1... Smartphone, 10... 1st display part, 11... 1st housing, 12... 1st display surface, 13... Display surface, 14... Full screen display area, 20... 2nd display part, 21... 2nd housing , 22... Second display surface, 23... Opposing surface, 30... Connecting portion, 31... Cylindrical portion, 32... Cover portion, 33... Third display surface, 41... Lens, 42... Battery, 311... Housing portion, 312 … Hollow part.

Claims (10)

A plate-shaped first housing provided with a first display surface;
A plate-shaped second housing provided with a second display surface;
The first housing and the second housing are foldably connected with the first display surface and the second display surface facing outward, and a third display surface continuous with the first display surface is provided. With a connecting part,
A display device in which the third display surface is hidden in a gap between the second housing and the connecting portion when both housings are opened. The third display surface has a shape forming a part of the outer peripheral surface of a cylinder,
The display device according to claim 1, wherein the second housing has a facing surface that faces the third display surface when both the housings are opened and that forms a part of an inner peripheral surface of a cylinder. The display device according to claim 2, wherein the connecting portion has a hollow columnar shape, and a circuit is provided therein. The connecting portion of the camera is located at a position facing the same direction as the second display surface when the two housings are folded, and faces the opposite direction when the both housings are open. The display device according to claim 3, further comprising a lens. The display device according to claim 3, wherein a battery having a cylindrical shape is provided inside the connecting portion. The display control part which controls the display to the display area which regarded the said 1st display surface, the said 2nd display surface, and the said 3rd display surface as one display surface according to the opening degree of both said housings. The display device according to any one of 1 to 5. When the display control unit displays an image in the display area, the display control unit has a maximum size that fits the image in an area excluding a portion hidden in the gap while maintaining the aspect ratio. The display device according to claim 6, which is displayed by. The display control unit, when displaying an image in the display area, displays the image in the area excluding a portion hidden in the gap while maintaining the aspect ratio of the image. The display device according to claim 6, wherein a display is performed with a maximum size that fits in the display area when the display size becomes smallest. The display control unit, when the both housings are opened from a state where the both housings are folded and an image is displayed on the first display surface to a position where the third display surface starts to be hidden in the gap, The display device according to any one of claims 6 to 8, which starts display control to a display area. The display device according to any one of claims 6 to 9, wherein the display control unit, when displaying two images in the display area, displays an image indicating a boundary between the two images.