Display unit

Abstract

To provide a display unit that can use power supplied from an external device carried by a user who is attracted by an incentive.SOLUTION: A display unit 100 comprises a display 110, a power receiving unit 130, and an incentive information output unit 121. The display 110 has a display screen 111 that displays content. The power receiving unit 130 receives power supplied from an external device 20 through wireless connection or wired connection. When the power is received from the external device 20, the incentive information output unit 121 outputs incentive information to the external device 20.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present disclosure relates to a display device. [Background technology]

[0002] Patent Document 1 discloses electronic paper that allows contactless charging of a secondary battery without opening the housing and removing the secondary battery. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2009-165226 Summary of the Invention [Problem to be solved by the invention]

[0004] Conventional electronic paper can maintain its display content without a power source, and is therefore used in electronic posters and other applications. However, the display quality of electronic paper gradually deteriorates over time. To prevent this deterioration, a certain amount of power is required for the periodic refresh operation and rewriting of the display content. There are two possible solutions to ensure power supply. The first solution is to use solar cells. However, in installation environments where there is not enough strong light, power shortages can occur. The second solution is to incorporate a rechargeable battery. However, this requires monitoring the battery's charge status and regular maintenance. Neither solution can be considered appropriate.

[0005] The present disclosure aims to provide a display device that can use power supplied from an external device carried by a user who is attracted by a special offer. [Means for solving the problem]

[0006] A display device according to the present disclosure includes a display unit, a power receiving unit, and a bonus information output unit. The display unit has a display screen for displaying content. The power receiving unit receives power supplied from an external device via a wireless or wired connection. The bonus information output unit outputs bonus information for the external device when power is received from the external device. [Effects of the Invention]

[0007] According to the present disclosure, it is possible to provide a display device that can use power supplied from an external device carried by a user who is attracted by a special offer. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is a block diagram showing a configuration of an information processing system 1 including a display device 100 according to a first embodiment of the present disclosure. [Figure 2] 1 is an explanatory diagram of an information processing system 1 and related parties. [Figure 3] FIG. 10 is a block diagram showing a configuration of an information processing system 1A including a display device 100A according to a modified example of the first embodiment of the present disclosure. [Figure 4] FIG. 10 is a block diagram showing a configuration of an information processing system 1B including a display device 100B according to a second embodiment of the present disclosure. DETAILED DESCRIPTION OF THE INVENTION

[0009] Embodiments of the present disclosure will be described with reference to the drawings. In the drawings, the same or corresponding parts are designated by the same reference numerals and description thereof will not be repeated.

[0010] First Embodiment 1.1 Overall configuration of information processing system 1 First, an information processing system 1 including a display device 100 will be described with reference to Fig. 1 and Fig. 2. Fig. 1 is a block diagram showing the configuration of the information processing system 1 including the display device 100 according to a first embodiment of the present disclosure. Fig. 2 is an explanatory diagram of the information processing system 1 and related parties.

[0011] As shown in Fig. 1 and Fig. 2, the information processing system 1 includes an external server 10, an external device 20, and a display device 100. A detailed configuration will be described later, but in this information processing system 1, content such as advertisements provided by advertiser A is first stored in the external server 10. The stored content is distributed to display devices 100 in various locations in a timely manner as needed (S5 in Fig. 2). The distributed content is displayed on the display device 100.

[0012] It is assumed that a user U who owns the external device 20 becomes interested in the content displayed on the display device 100 and approaches the display device 100. Then, it is assumed that the user U looks at the display on the display device 100 and learns that if he or she supplies a small amount of power from the external device 20 to the display device 100 by performing a touch operation or the like, he or she will receive special benefits such as advantageous information or points in return.

[0013] When a user U is attracted by the benefit and agrees to the power supply, he or she supplies a certain amount of power to the display device 100 by touch operation or the like (S1 in FIG. 2). In return, the display device 100 provides a benefit such as advantageous information or points to the external device 20 (S2 in FIG. 2). The user U receives the provided benefit via the external device 20. If the benefit is, for example, a uniform resource locator (URL) containing bargain information or event information, the user U can access the URL with the external device 20 (S3 in FIG. 2) and view or acquire the information. If the benefit is, for example, points from a content advertiser A, the advertiser A provides a benefit such as a discount on the purchase of a product or the use of a service (S4 in FIG. 2). The advertiser A pays the installer B, who provides the installation location and time of the display device 100 (S6 in FIG. 2), an advertising fee or the like as compensation (S5 in FIG. 2).

[0014] 1.2 Configuration of external server 10 The external server 10 includes at least a CPU (Central Processing Unit) 11, a storage unit 12, and a communication unit 13.

[0015] The storage unit 12 stores content provided by advertiser A. The communication unit 13 distributes the content stored in the storage unit 12 to display devices 100 in various locations as needed and in a timely manner. The CPU 11 controls the storage unit 12 and the communication unit 13, and determines the distribution destination and distribution timing of the content. The hardware configuration of the external server 10 is similar to that of a general computer used as a server, so a detailed description will be omitted.

[0016] 1.3 Configuration of the external device 20 The external device 20 includes a CPU 21, an imaging unit 22, an operation unit 23, a display unit 24, a storage unit 25, a wireless communication unit 26, and a wired communication unit 27. Examples of the external device 20 include, but are not limited to, a smartphone or a tablet. Most of the hardware configuration is similar to that of a typical smartphone or tablet, so detailed explanations will be omitted and only the characteristic parts will be mainly described.

[0017] The imaging unit 22 has a function of reading two-dimensional code information such as a QR code (registered trademark; note omitted below) in addition to a function of taking normal photos and videos. The imaging unit 22 may be, for example, a built-in camera, but is not limited to this.

[0018] The operation unit 23 receives operation inputs. Examples of the operation unit 23 include, but are not limited to, buttons, a keyboard, and a touch panel that allows touch operations.

[0019] Examples of the display unit 24 include, but are not limited to, liquid crystal and organic EL. The display unit 24 may be a touch panel that allows touch operation, and may also serve as the operation unit 23.

[0020] The wireless communication unit 26 has at least one of communication functions such as near field communication (NFC, registered trademark), Bluetooth (registered trademark), and Wi-Fi (registered trademark) for wireless communication with the display device 100, but is not limited to these. However, near field communication is preferable because it also allows power transmission. The wireless communication unit 26 also has a mobile communication function for wireless communication with the external server 10.

[0021] The wired communication unit 27 has a function of performing wired communication and power transmission with the display device 100. Separate cables may be used for wired communication and power transmission. For example, when connecting via USB Type-C (registered trademark), wired communication and power transmission can be performed with a single cable. However, this is not limiting.

[0022] 1.4 Configuration of the display device 100 Display device 100 includes display unit 110, CPU 120, power receiving unit 130, wireless communication unit 141, external communication unit 143, and storage unit 150. CPU 120 has a bonus information output unit 121. Examples of display device 100 include devices known as digital signage, signage displays, electronic posters, etc., which are suitable for displaying advertisements, but are not limited to these.

[0023] The display unit 110 has a display screen 111 that displays content. The display unit 110 includes both display units with and without memory properties. Examples of display units without memory properties include, but are not limited to, liquid crystal and organic electroluminescence (EL).

[0024] The CPU 120 controls each unit of the display device 100. The CPU 120 may be, for example, a processor or an MPU (Micro Processing Unit), but is not limited to these.

[0025] For example, if an OS (Operating System, sometimes called "basic software") that runs on the CPU 120 and a program with functions corresponding to the bonus information output unit 121 are stored in the storage unit 150, the bonus information output unit 121 is realized by the CPU 120 executing the OS and program. Examples of the OS include, but are not limited to, Microsoft Windows (registered trademark) and Android (registered trademark). The bonus information output unit 121 may be configured with, but is not limited to, an electronic circuit, a DSP (Digital Signal Processor), an FPGA (Field Programmable Gate Array), an ASIC (Application Specific Integrated Circuit), or the like.

[0026] The power receiving unit 130 receives power supplied from the external device 20 via a wireless or wired connection. The power receiving unit 130 allocates at least a portion of the received power to the operating power source of the display device 100. In a modification of the first embodiment and a second embodiment described below, the surplus power is used to charge the secondary battery 135. The power receiving unit 130 also transmits information about the amount of power received to the bonus information output unit 121.

[0027] As described above, the CPU 120 has the privilege information output unit 121. The privilege information output unit 121 outputs privilege information for the external device 20 when power is received from the external device 20.

[0028] Therefore, when power is supplied from the external device 20 via a wireless or wired connection, benefit information is output to the external device 20. As a result, a user who is attracted by the benefit can use the power supplied from the external device 20 that he or she owns for his or her own device.

[0029] Examples of the benefit information include, but are not limited to, coupons, points, bargain information, event information, and the like.

[0030] The benefit information may be determined according to the amount of power supplied from the external device 20. Therefore, the benefit information is determined according to the amount of power supplied from the external device 20. As a result, more power will be supplied by users who are attracted by more advantageous benefits.

[0031] The bonus information may include at least one of first identification information for identifying the content corresponding to the bonus information or second identification information for identifying the display device 100 corresponding to the bonus information. Therefore, the bonus information can include identification information of the content or identification information of the display device 100 itself. As a result, it becomes possible to receive benefits from the content provider, the installer of the display device 100, etc.

[0032] The wireless communication unit 141 communicates with and transmits power to the external device 20. In this case, power is supplied to the power receiving unit 130 from the external device 20 via the wireless communication unit 141. The privilege information output unit 121 transmits privilege information to the external device 20 via the wireless communication unit 141. Therefore, in response to power supply from the external device 20 via a wireless connection, privilege information is transmitted wirelessly to the external device 20. As a result, the operation for the user to supply power to the external device 20 becomes easier, and power supply from more users can be expected.

[0033] For example, the wireless communication unit 141 may perform short-range wireless communication. Therefore, communication and power transmission with the external device 20 are performed by short-range wireless communication. As a result, the efficiency of power transmission is improved, and various types of special benefit information can be provided.

[0034] The external communication unit 143 communicates with the external server 10. In this case, the bonus information output unit 121 outputs code information including bonus information to the external server 10. Therefore, the code information including bonus information for the external device 20 is transmitted to the external server 10. As a result, the external server 10 can grasp the status of provision of bonus information.

[0035] The storage unit 150 stores information and data necessary for controlling each unit of the display device 100. The storage unit 150 may store or store an OS, programs, etc. executed by the CPU 120. The storage unit 150 includes memory, specifically, volatile memory and nonvolatile memory. Volatile memory includes, for example, dynamic random access memory (DRAM) and static random access memory (SRAM), but is not limited to these. Nonvolatile memory includes, for example, read-only memory (ROM), flash memory, solid state drive (SSD), and hard disk, but is not limited to these.

[0036] 1.5 Modification of the first embodiment Next, a modified example of the first embodiment will be described with reference to Fig. 3. Fig. 3 is a block diagram showing the configuration of an information processing system 1A including a display device 100A according to a modified example of the first embodiment of the present disclosure. As will be described below, this display device 100A includes an additional secondary battery 135, limits the display unit 110, and further illustrates the display content of the display screen 111.

[0037] 3, the display device 100A further includes a secondary battery 135 that stores at least a portion of the power received by the power receiving unit 130. Therefore, the remaining unused power received by the power receiving unit 130 can be charged into the secondary battery 135. As a result, even if the amount of power supplied per connection is small, sufficient power can be secured by receiving power supply many times.

[0038] The secondary battery 135 may be, for example, a nickel-metal hydride battery or a lithium-ion battery, but is not limited to these.

[0039] The display unit 110 of the display device 100A is electronic paper that can retain displayed content without applying voltage. Therefore, retaining the displayed content itself requires almost no power consumption. As a result, it is possible to reduce waste of power supplied from the external device 20.

[0040] Furthermore, display unit 110 may display information on display screen 111 that special benefit information will be provided if a power supply operation is performed. Therefore, the information that special benefit information will be provided if a power supply operation is performed is displayed on display screen 111. As a result, the power supply operation is performed only after the user is satisfied with the displayed conditions for providing the special benefit information, thereby preventing an unintended situation from occurring.

[0041] Second Embodiment Next, a second embodiment will be described with reference to Fig. 4. Fig. 4 is a block diagram showing the configuration of an information processing system 1B including a display device 100B according to a second embodiment of the present disclosure. As will be described below, this display device 100B includes a wired communication unit 142 instead of a wireless communication unit 141. However, the display device 100B may include both the wireless communication unit 141 and the wired communication unit 142.

[0042] 4, display device 100B further includes a wired communication unit 142 that communicates with and transmits power to external device 20. In this case, power is supplied to power receiving unit 130 from external device 20 via wired communication unit 142. Bonus information output unit 121 transmits bonus information to external device 20 via wired communication unit 142. Therefore, in response to power supply from external device 20 via a wired connection, bonus information to external device 20 is transmitted via a wire. As a result, it is possible to supply more power per connection than with a wireless connection.

[0043] Furthermore, the privilege information output unit 121 may display code information including the privilege information on the display unit 110. Therefore, the code information including the privilege information for the external device 20 is displayed on the display unit 110. As a result, it is possible to provide a variety of privilege information, and also to keep the contents of the privilege information secret from anyone other than the user who actually supplied power.

[0044] Examples of code information include one-dimensional codes and two-dimensional codes. Two-dimensional codes are preferable because they can display more information. Specific examples include QR codes, but are not limited to these examples. This code information can be read by the imaging unit 22 of the external device 20.

[0045] The present invention can be embodied in various other forms without departing from its spirit or main features. Therefore, the above-described embodiments are merely illustrative in all respects and should not be interpreted as limiting. The scope of the present invention is defined by the claims and is not limited to the text of the specification. Furthermore, all modifications and variations within the equivalent range of the claims are within the scope of the present invention. [Industrial Applicability]

[0046] The contents of the present disclosure can be used for display devices. [Explanation of symbols]

[0047] 1, 1A, 1B Information Processing System 10 External Servers 20 External device 22 Imaging unit 26 Radio Communication Department 27 Wired Communications Department 100, 100A, 100B display device 110 Display section 111 Display screen 120 CPU 121 Bonus information output section 130, 130A, 130B power receiving unit 135 Secondary battery 141 Radio Communication Department 142 Wired Communications Department 143 External Communications Department

Claims

1. a display unit having a display screen for displaying content; a power receiving unit that receives power supplied from an external device via a wireless connection or a wired connection; a privilege information output unit that outputs privilege information for the external device when power is received from the external device; A display device comprising:

2. The display device according to claim 1 , wherein the benefit information is determined according to an amount of power supplied from the external device.

3. a wireless communication unit that performs communication and power transmission with the external device; power is supplied to the power receiving unit from the external device via the wireless communication unit; The display device according to claim 1 , wherein the bonus information output unit transmits the bonus information to the external device via the wireless communication unit.

4. The display device according to claim 3 , wherein the wireless communication unit performs short-distance wireless communication.

5. a wired communication unit for performing communication and power transmission with the external device; power is supplied to the power receiving unit from the external device via the wired communication unit; The display device according to claim 1 , wherein the bonus information output unit transmits the bonus information to the external device via the wired communication unit.

6. The display device according to claim 1 , wherein the bonus information output unit causes the display unit to display code information including the bonus information.

7. further comprising an external communication unit for communicating with an external server; The display device according to claim 1 , wherein the bonus information output unit outputs code information including the bonus information to the external server.

8. 3. The display device according to claim 1, wherein the display unit is electronic paper that can retain displayed content without application of a voltage.

9. 3. The display device according to claim 1, further comprising a secondary battery that stores at least a portion of the power received by the power receiving unit.

10. 3. The display device according to claim 1, wherein the display unit displays, on the display screen, information that the special benefit information will be provided if a power supply operation is performed.

11. 3. The display device according to claim 1, wherein the bonus information includes at least one of first identification information that identifies the content corresponding to the bonus information and second identification information that identifies the display device corresponding to the bonus information.

Images