Indication device

Abstract

To provide a more user-friendly display device. [Solution] A display device 100 is provided, comprising a display 130, a camera 140, and a control unit 110 that adjusts the tilt of characters and / or images displayed on the display 130 based on images from the camera 140.

Description

[Technical Field]

[0001] The present invention relates to a technology of a display device for displaying various types of information. [Background Art]

[0002] Various displays and various biological information measuring devices have been conventionally known. For example, Japanese Unexamined Patent Application Publication No. 2015-084002 (Patent Document 1) discloses a mirror display system and a video display method therefor. According to Patent Document 1, the mirror display system includes a mirror display unit, a distance image sensor unit, a camera unit, and a video control unit, wherein the video control unit detects the three-dimensional position of a person's eyes by means of the distance image sensor unit and the camera unit, calculates parameters (position, size, orientation, 3D convergence point) of a display image of an object to be displayed on a stereoscopic video display unit in accordance with detection results, and displays an image of the object on the stereoscopic video display unit based on calculation results.

[0003] Further, Japanese Unexamined Patent Application Publication No. 2008-279181 (Patent Document 2) discloses a biometric measuring device. According to Patent Document 2, the biometric measuring device includes a control device, a fingerprint sensor, a measuring device that measures biometric data and returns a measurement result to the control device when detecting a measurement start signal supplied from the control device, a personal parameter table in which name data, fingerprint data, and personal parameters are stored in association with each other, an output device that displays an image, and a human detection sensor. When acquiring fingerprint data, a CPU of the control device reads out a personal parameter corresponding to the fingerprint data from the personal parameter table, estimates health data based on the personal parameter and the measured biometric data, and causes the output device to display an image based on the health data. [Prior Art Documents] [Patent Documents]

[0004] [Patent Document 1] Japanese Unexamined Patent Application Publication No. 2015-084002 [Patent Document 2] Japanese Patent Publication No. 2008-279181 [Overview of the project] [Problems that the invention aims to solve]

[0005] The objective of this invention is to provide a more user-friendly display device. [Means for solving the problem]

[0006] According to one aspect of this invention, a display device is provided, comprising a display, a camera, and a control unit that adjusts the tilt of characters and / or images displayed on the display based on an image from the camera. [Effects of the Invention]

[0007] As described above, this invention provides a user-friendly display device. [Brief explanation of the drawing]

[0008] [Figure 1] This is an image diagram showing a first example of use of the display device according to the first embodiment. [Figure 2] This is an image diagram showing the overall configuration of the display device according to the first embodiment. [Figure 3] This is an illustrative diagram showing a second example of use of the display device according to the first embodiment. [Figure 4] This is an illustrative diagram showing a third example of use of the display device according to the first embodiment. [Figure 5] This is an image diagram showing a fourth example of use of the display device according to the first embodiment. [Figure 6] This is an image diagram showing a fifth example of use of the display device according to the first embodiment. [Figure 7] This is an image diagram showing a sixth example of use of the display device according to the first embodiment. [Figure 8] This is a block diagram showing the configuration of a display device according to the first embodiment. [Figure 9] This is a flowchart illustrating the information processing of a display device according to the first embodiment. [Figure 10] This is a block diagram showing the configuration of the network system according to the second embodiment. [Figure 11] This is a block diagram showing the server configuration according to the second embodiment. [Figure 12] This is a block diagram showing the configuration of the network system according to the third embodiment. [Figure 13] This is a block diagram showing the configuration of a communication terminal according to the third embodiment. [Modes for carrying out the invention]

[0009] Embodiments of the present invention will be described below with reference to the drawings. In the following description, identical parts are denoted by the same reference numerals. Their names and functions are also the same. Therefore, detailed descriptions of them will not be repeated. <First Embodiment> <Overview of the display device>

[0010] First, with reference to Figure 1, an overall overview of the display device 100 according to this embodiment will be described. The display device 100 includes a display 130, a camera 140, and an IR sensor 150.

[0011] The display 130 constitutes the majority of the display device 100. The display 130 in this embodiment is made of a transparent material and is configured to be directly or indirectly attached to a mirror 400, glass, wall, etc., using a sticker, adhesive, magnet, etc. This allows the user to simultaneously view the characters or images displayed on the display 130 and the user's face or the wall on the other side of the display 130.

[0012] Particularly in the present embodiment, by capturing an image of the front face of the display device 100 with the camera 140, it is possible to recognize the face of a user located in front of the display device 100, acquire the user's vital signs, and identify the inclination of the user's face. Then, the display angle of characters and images to be displayed is adjusted in accordance with the inclination of the user's face.

[0013] That is, even when the display device 100 is attached such that the vertical direction of the display device coincides with the vertical direction, if the user's face is inclined, the display angle of characters and images to be displayed is adjusted in accordance with the user's face. Conversely, even if the user's face is upright, when the display device 100 is attached obliquely, the display angle of characters and images is adjusted in accordance with the user's face.

[0014] Specifically, as shown in FIG. 2, when the upper portion of the display device 100 faces upward, characters and images are displayed as they are. In other words, when the top of the user's head coincides with the upward direction of the display device 100, characters and images are displayed as they are.

[0015] In the following description, the side of the display device 100 where the camera 140 is provided is defined as the top side, that is, the upper side in FIG. 2 is the top of the display device 100. The downward direction in FIG. 2 is defined as the bottom of the display device 100, the right direction in FIG. 2 is defined as the right of the display device 100, and the left direction in FIG. 2 is defined as the left of the display device 100.

[0016] Then, as shown in FIG. 3, when the upper portion of the display device 100 faces downward, characters and images are displayed in a state of being rotated 180 degrees. In other words, when the top of the user's head coincides with the downward direction of the display device 100, characters and images are rotated 180 degrees and displayed.

[0017] Then, as shown in FIG. 4, when the upper portion of the display device 100 faces left, The text and images are displayed rotated 90 degrees to the right. In other words, if the top of the user's head aligns with the rightward direction of the display device 100, the text and images are displayed rotated 90 degrees clockwise. In this case, it is preferable that the display device 100 rearranges the text and images for easier viewing by the user. That is, for devices with a vertically oriented display, the screen is adjusted to a horizontal orientation.

[0018] Furthermore, as shown in Figure 5, if the top of the display device 100 is oriented to the right, The text and images are displayed rotated 90 degrees to the left. In other words, if the top of the user's head aligns with the left direction of the display device 100, the text and images are displayed rotated 90 degrees counterclockwise. In this case, it is preferable that the display device 100 rearranges the text and images for easier viewing by the user.

[0019] As shown in Figure 6, if the top of the display device 100 is tilted to the right by several tens of degrees, the text and images will be displayed rotated to the left by several tens of degrees. In other words, if the top of the user's head is positioned to the left of the top of the display device 100, the text and images will be displayed rotated counterclockwise. If the display device 100 is tilted by nearly 90 degrees, it is preferable to rearrange the text and images for easier viewing by the user.

[0020] As shown in Figure 7, if the top of the display device 100 is tilted to the left by several tens of degrees, the text and images will be displayed rotated to the left by several tens of degrees. In other words, if the top of the user's head is positioned to the right of the top of the display device 100, the text and images will be displayed rotated clockwise. If the display device 100 is tilted by nearly 90 degrees, it is preferable to rearrange the text and images for easier viewing by the user.

[0021] Thus, in this embodiment, the display device 100 is configured so that the user can easily recognize the displayed characters and images regardless of the position of the user's face and eyes, or the position of the display device 100. <Display device configuration>

[0022] First, with reference to Figure 8, one aspect of the configuration of the display device 100 according to this embodiment will be described. The display device 100 mainly includes a control unit 110, a memory 120, a display 130, a camera 140, an IR sensor 150, a communication interface 160, and a speaker 170.

[0023] The control unit 110 is implemented by a microcomputer including a CPU, RAM, and ROM. The control unit 110 controls each part of the display device 100 by executing a control program while referring to various data.

[0024] Memory 120 stores programs and data. Memory 120 transfers the stored data and programs to the control unit 110.

[0025] The display 130 outputs various types of information, such as characters and graphics, according to signals from the control unit 110.

[0026] The communication interface 160 is implemented using wireless antennas, wired connectors, etc. The communication interface 160 transmits data from the control unit 110 to an external server, etc., and receives data from the external server to the control unit 110.

[0027] The camera 140 captures a still image or a moving image according to instructions from the control unit 110 and inputs the data to the control unit 110.

[0028] The IR sensor 150 is implemented using an infrared camera with tens of tens of pixels. The IR sensor 150 inputs the received infrared image to the control unit 110.

[0029] The speaker 170 outputs various types of audio based on signals from the control unit 110. <Information Processing in Display Devices>

[0030] Next, with reference to Figure 9, the information processing in the display device will be explained. In practice, the CPU of the control unit 110 executes the following processes by running the program stored in the memory 120.

[0031] When a user comes in front of the display device 100, the control unit 110 detects the presence of the person by using the IR sensor 150 (step S102).

[0032] The control unit 110 starts taking images with the camera 140 (step S104).

[0033] The control unit 110 identifies the portion of the captured image that corresponds to the user's face (step S106).

[0034] The control unit 110 calculates the user's facial features based on the captured image (step S108).

[0035] The control unit 110 calculates the degree of tilt of the user's face from the features of the user's face (step S110). For example, it determines the orientation of the user's face relative to the display device 100 based on lines connecting the corners of both eyes or lines connecting the corners of the mouth.

[0036] The control unit 110 acquires vital signs such as the user's blood pressure and heart rate based on the captured image (step S112).

[0037] The control unit 110 uses the IR sensor 150 to measure the user's body temperature (step S114).

[0038] The control unit 110 creates a screen that displays the user's vital signs and body temperature information (step S116). In particular, in this embodiment, the control unit 110 creates an image of the user's vital signs and body temperature information tilted in the opposite direction to the tilt described above. In this case, if the tilt is close to 90 degrees, the control unit 110 displays an image in which the user's vital signs and body temperature information is arranged horizontally.

[0039] In this embodiment, since the display 130 of the display device 100 is configured to be vertically oriented, the control unit 110 creates a display screen suitable for a vertically oriented screen when the screen is tilted only slightly or nearly 180 degrees. On the other hand, when the screen is tilted nearly 90 degrees or nearly 270 degrees, the control unit 110 creates a display screen suitable for a horizontally oriented screen for the user's vital signs and body temperature.

[0040] Naturally, in the configuration where the display 130 of the display device 100 is configured horizontally, the control unit 110 creates a display screen suitable for a horizontal screen for the user's vital signs and body temperature information when the screen is tilted only slightly or nearly 180 degrees. On the other hand, when the screen is tilted nearly 90 degrees or nearly 270 degrees, the control unit 110 creates a display screen suitable for a vertical screen for the user's vital signs and body temperature information.

[0041] The control unit 110 displays the tilted screen on the display 130 (step S118). <Second Embodiment>

[0042] In the above embodiment, most of the processing was performed locally on the display device 100. However, some or all of this processing may be performed on the server 200 in the cloud.

[0043] For example, as shown in Figures 10 and 11, this embodiment includes a display device 100 and a server 200. The CPU 210 of the server 200 receives captured images from the display device 100 and calculates the feature quantities of the user's face, calculates the degree of tilt of the user's face from the feature portions of the user's face, and acquires vital signs such as the user's blood pressure and heart rate.

[0044] The CPU 210 then creates a screen that displays the user's vital signs and body temperature (step S116). In particular, in this embodiment, the CPU 210 creates an image of the user's vital signs and body temperature that is tilted in the opposite direction to the tilt described above. The CPU of the server 200 transmits the tilted screen to the display device 100 via the internet for display. <Third Embodiment>

[0045] Alternatively, as shown in Figures 12 and 13, some or all of the above processing may be performed on a communication terminal 300 that can be connected to the display device 100. Specifically, the CPU 310 of the communication terminal 300 acquires the captured image from the display device 100, calculates the feature quantities of the user's face, calculates the degree of tilt of the user's face from the feature parts of the user's face, and acquires vital signs such as the user's blood pressure and heart rate. The CPU 310 then creates a screen that displays the user's vital signs and body temperature information. In particular, in this embodiment, the communication terminal 300 creates an image of the user's vital signs and body temperature tilted in the opposite direction to the tilt described above, and displays it on the display device 100. <Summary>

[0046] In the above embodiment, a display device is provided that includes a display, a camera, and a control unit that adjusts the tilt of characters and / or images displayed on the display based on an image from the camera.

[0047] Preferably, the control unit acquires the user's vital signs based on the image from the camera and displays them as text on the display.

[0048] Preferably, the display device further includes an IR sensor. The control unit uses the IR sensor to acquire the user's body temperature and displays it as text on the display.

[0049] Preferably, the display is transparent.

[0050] Preferably, the display is configured to be attachable to a wall surface.

[0051] The embodiments disclosed herein should be considered in all respects to be illustrative and not restrictive. The scope of the present invention is indicated by the claims rather than by the foregoing description, and all modifications within the meaning and scope equivalent to the claims are intended to be included. [Explanation of symbols]

[0052] 100:Display device 110: Control Unit 120: Memory 130: Display 140: Camera 150: IR sensor 160: Communication Interface 170: Speaker 200: Server 300: Communication terminal

Claims

1. The display and Camera and, A display device comprising: a control unit that adjusts the tilt of characters and / or images displayed on the display based on an image from the camera.

2. The display device according to claim 1, wherein the control unit acquires the user's vital signs based on the image from the camera and displays them as text on the display.

3. Equipped with IRcom, The display device according to claim 1, wherein the control unit acquires the user's body temperature by utilizing the IR sensor and displays it as characters on the display.

4. The display device according to claim 1, wherein the display is transparent.

5. The display device according to claim 1, wherein the display is configured to be attachable to a wall surface.

Images