Display method, and display system

Abstract

To provide a display method, a display system, and a display device which, when a plurality of projectors are installed at the arbitrary same angle, allow a user to easily adjust the installation angle of them.SOLUTION: A display method includes such procedures that: a first projector generates first angle information indicating an installation angle of the first projector on the basis of a detection value of a six-axis sensor included by the first projector; a second projector generates second angle information indicating an installation angle of the second projector on the basis of a detection value of a six-axis sensor included by the second projector; and the second projector informs a user of information indicating a difference between the installation angle of the first projector, which is indicated by the first angle information, and the installation angle of the second projector, which is indicated by the second angle information.SELECTED DRAWING: Figure 6

Description

Technical Field

[0001] The present invention relates to a display method, and display system mu .

Background Art

[0002] Conventionally, techniques related to the installation of display devices such as projectors are known. Patent Document 1 discloses a technique for notifying whether or not the detection angle of a tilt sensor included in a projector matches the installation angle specified by a user when the user wants to install the projector at a desired installation angle.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, in Patent Document 1, when a plurality of projectors are installed at arbitrary installation angles so as to be aligned, the user needs to input the installation angle for each projector, and the adjustment of the installation angle of the projector can be complicated, so it cannot be easily adjusted.

Means for Solving the Problems

[0005] One aspect of the present disclosure is that a first display device generates first angle information indicating the installation angle of the first display device based on a detection value of a sensor included in the first display device, a second display device generates second angle information indicating the installation angle of the second display device based on a detection value of a sensor included in the second display device, and the second display device notifies information indicating a difference between the installation angle of the first display device indicated by the first angle information acquired from the first display device and the installation angle of the second display device indicated by the second angle information. This is a display method including these steps.

[0006] Another aspect of the present disclosure is a display system including a first display device and a second display device. The first display device generates first angle information indicating the installation angle of the first display device based on a detection value of a sensor included in the first display device. The second display device generates second angle information indicating the installation angle of the second display device based on a detection value of a sensor included in the second display device. The second display device notifies information indicating a difference between the installation angle of the first display device indicated by the first angle information acquired from the first display device and the installation angle of the second display device indicated by the second angle information.

[0007] Yet another aspect of the present disclosure is a display device including a sensor that detects the installation angle of the display device, a generation unit that generates second angle information indicating the installation angle of the display device based on a detection value of the sensor, a reception unit that receives first angle information indicating the installation angle of a display device different from the display device, and a notification unit that notifies information indicating a difference between the installation angle indicated by the first angle information received by the reception unit and the installation angle indicated by the second angle information generated by the generation unit.

Brief Description of the Drawings

[0008]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Mode for Carrying Out the Invention

[0009] Hereinafter, embodiments will be described with reference to the drawings. In FIGS. 1, 3, 4, 5, 7, 8, and 9, the X-axis, Y-axis, and Z-axis are illustrated. The X-axis, Y-axis, and Z-axis are orthogonal to each other. The Z-axis indicates the vertical direction and the up-down direction. The X-axis and Y-axis are parallel to the horizontal direction. The X-axis indicates the left-right direction. The Y-axis indicates the front-back direction. The positive direction of the Z-axis indicates the upward direction. The positive direction of the X-axis indicates the rightward direction. The positive direction of the Y-axis indicates the forward direction.

[0010] [First Embodiment] First, the first embodiment will be described. FIG. 1 is a diagram showing the configuration of the projection system 1000. The projection system 1000 is an example of a "display system".

[0011] The projection system 1000 includes a plurality of projectors 1 arranged side by side. The projection system 1000 performs tiling display in which a plurality of images G are arranged and displayed by these plurality of projectors 1.

[0012] As shown in FIG. 1, the projection system 1000 includes a plurality of projectors 1. The projection system 1000 of the present embodiment includes six projectors 1, namely projectors 1A, 1B, 1C, 1D, 1E, and 1F. The six projectors 1 are installed in two rows vertically and three columns horizontally.

[0013] Note that in FIG. 1 in , the number of projectors 1 included in the projection system 1000 is not limited to six, and any plurality of projectors may be used. Also, the installation mode of the plurality of projectors 1 may be any mode in which they are arranged in N rows and M columns. Here, N and M are integers of 1 or more.

[0014] The projector 1 projects image light based on the image data input from the image supply device 2, thereby displaying the image G on the screen SC as a projection surface. The screen SC may be a curtain-like screen, or the wall surface of a building or the plane of a fixture may be used as the screen SC. The screen SC is not limited to a flat surface, and may be a curved surface or a surface having irregularities.

[0015] Each of the projectors 1 included in the projection system 1000 operates as either a first projector or a second projector. The first projector is the projector 1 that serves as a reference in adjusting the installation angles of the other projectors 1. The second projector is the projector 1 whose installation angle is adjusted by the user with reference to the installation angle of the first projector. In the present embodiment, the case where the projector 1A operates as the first projector is exemplified, and the cases where the projectors 1B, 1C, 1D, 1E, and 1F operate as the second projector are exemplified. The first projector is an example of a "first display device". The second projector is an example of a "second display device" and a "display device".

[0016] The projection system 1000 in FIG. 1 shows the display mode after the installation angle of each projector 1 has been appropriately adjusted by the user. In this embodiment, the installation angle of the projector 1 is manually adjusted by the user. In FIG. 1, the projector 1A displays the image G1 that overlaps with the edges of the images G2, G4, and G5 on the screen SC. In FIG. 1, the projector 1B displays the image G2 that overlaps with the edges of the images G1, G3, G4, G5, and G6 on the screen SC. In FIG. 1, the projector 1C displays the image G3 that overlaps with the edges of the images G2, G5, and G6 on the screen SC. In FIG. 1, the projector 1D displays the image G4 that overlaps with the edges of the images G1, G2, and G5 on the screen SC. In FIG. 1, the projector 1E displays the image G5 that overlaps with the edges of the images G1, G2, G3, G4, and G6 on the screen SC. In FIG. 1, the projector 1F displays the image G6 that overlaps with the edges of the images G2, G3, and G5 on the screen SC.

[0017] Each of the projectors 1A, 1B, 1C, 1D, 1E, and 1F is connected to the network NW and communicates with each other. The network NW is a network composed of communication facilities such as a public line network, a dedicated line, and other communication lines, and the specific mode is not limited. For example, the network NW may be a wide area network or a local area network. The network NW may include at least one of a wireless communication circuit and a wired communication circuit.

[0018] As shown in FIG. 1, the projection system 1000 includes an image supply device 2 connected to the network NW. The image supply device 2 is, for example, a device such as a notebook PC (Personal Computer), a desktop PC, a tablet terminal, a smartphone, or a PDA (Personal Digital Assistant). The image supply device 2 divides one frame of image data into six parts and outputs each of the divided image data to each of the projectors 1A, 1B, 1C, 1D, 1E, and 1F.

[0019] FIG. 2 is a block diagram showing the configuration of the projector 1.

[0020] The projector 1 includes a control unit 10. The control unit 10 includes a processor 110 that executes programs such as a CPU (Central Processing Unit) and an MPU (Micro-processing unit), and a storage unit 120, and controls each part of the projector 1. The control unit 10 causes the processor 110 to read out and execute a control program 121 stored in the storage unit 120. By reading out and executing the control program 121, the processor 110 functions as a projection control unit 111, an operation mode switching unit 112, a first mode execution unit 113, and a second mode execution unit 114. The projection control unit 111 is an example of the “notification unit”.

[0021] The storage unit 120 has a storage area for storing programs executed by the processor 110 and data processed by the processor 110. The storage unit 120 has a non-volatile storage area for storing programs and data in a non-volatile manner. Further, the storage unit 120 may include a volatile storage area and constitute a work area for temporarily storing programs executed by the processor 110 and data to be processed.

[0022] In addition to the control program 121 executed by the processor 110, the storage unit 120 stores setting data 122. The setting data 122 includes setting values related to the operation of the projector 1. Examples of the setting values included in the setting data 122 are setting values indicating the processing content executed by the image processing unit 14 and values such as parameters used in the processing of the image processing unit 14.

[0023] The projector 1 includes a first interface 11, a second interface 12, a frame memory 13, an image processing unit 14, an operation unit 15, and an audio processing unit 16. Each of these parts is connected to the control unit 10 via a bus 20 so as to be capable of data communication.

[0024] The first interface 11 includes communication hardware such as a connector and an interface circuit that conforms to a predetermined communication standard. The first interface 11 transmits and receives image data, control data, etc. to and from a device connected to the projector 1 according to a predetermined communication standard under the control of the control unit 10. The first interface 11 may include, for example, an interface capable of digitally transmitting video and audio such as HDMI (High-Definition Multimedia Interface), Displayport, HDBaseT, USB Type-C, 3G-SDI (Serial Digital Interface), etc. HDMI is a registered trademark. HDBaseT is a registered trademark. Also, the first interface 11 may include an interface for data communication such as USB. Further, the first interface 11 includes analog video terminals such as RCA terminals, VGA terminals, S terminals, D terminals, etc., and may include an interface capable of transmitting and receiving analog video signals.

[0025] The second interface 12 includes communication hardware such as a connector and an interface circuit connected to the network NW. The second interface 12 communicates with the image supply device 2 and other projectors 1 connected via the network NW according to a predetermined communication standard. The second interface 12 receives frame data from the image supply device 2 via the network NW and outputs the received frame data to the control unit 10.

[0026] The frame memory 13 and the image processing unit 14 are constituted by, for example, an integrated circuit. The integrated circuit includes LSI, ASIC (Application Specific Integrated Circuit), PLD (Programmable Logic Device), FPGA (Field-Programmable Gate Array), SoC (System-on-a-chip), etc. Also, an analog circuit may be included in a part of the configuration of the integrated circuit, or a configuration in which the control unit 10 and the integrated circuit are combined may be used.

[0027] The frame memory 13 includes a plurality of banks. Each bank has a storage capacity capable of writing one frame. The frame memory 13 is constituted by, for example, SDRAM (Synchronous Dynamic Random Access Memory).

[0028] The image processing unit 14 performs image processing such as resolution conversion processing, resizing processing, distortion aberration correction, shape correction processing, digital zoom processing, and adjustment of image color and brightness on the image data developed in the frame memory 13. The image processing unit 14 executes the processing specified by the control unit 10 and performs the processing using the parameters input from the control unit 10 as necessary. Also, the image processing unit 14 can execute a combination of a plurality of the above image processes. The image processing unit 14 reads out the processed image data from the frame memory 13 and outputs it to the light modulation device drive circuit 192.

[0029] The operation unit 15 includes an operation panel 151 and an infrared reception unit 152.

[0030] The operation panel 151 is provided, for example, on the housing of the projector 1 and includes various switches such as a power switch for turning on and off the power of the projector 1. When a switch is operated, the operation panel 151 outputs a signal corresponding to the operated switch to the control unit 10. The infrared reception unit 152 includes a light reception sensor that receives the infrared signal transmitted by the remote control 3, a circuit that decodes the infrared signal received by the light reception sensor, and the like. The infrared reception unit 152 outputs a signal corresponding to the infrared signal received by the light reception sensor to the control unit 10. The signal output by the infrared reception unit 152 to the control unit 10 is a signal corresponding to the switch of the operated remote control 3.

[0031] The audio processing unit 16 includes a speaker 161, an amplifier 162, and a signal processing circuit 163. Note that the audio processing unit 16 may include a microphone.

[0032] When digital audio data is input from the control unit 10, the signal processing circuit 163 converts the input audio data from digital to analog. The signal processing circuit 163 outputs the audio data converted to analog to the amplifier 162.

[0033] The amplifier 162 amplifies the volume of the audio indicated by the audio data input from the signal processing circuit 163 at an amplification rate corresponding to the volume specified by the user. The speaker 161 outputs the audio based on the audio data output by the signal processing circuit 163 at the volume amplified by the amplifier 162.

[0034] The projector 1 includes a six-axis sensor 17. The six-axis sensor 17 is a motion sensor including a three-axis acceleration sensor and a three-axis gyro sensor. As the six-axis sensor 17, an IMU (Inertial Measurement Unit) in which the three-axis acceleration sensor and the three-axis gyro sensor are modularized may be adopted. The six-axis sensor 17 outputs the detection value to the control unit 10. The six-axis sensor 17 is an example of a "sensor".

[0035] Figure 3 is an explanatory diagram of the detection axes of the six-axis sensor 17 and the installation angle of the projector 1.

[0036] In Figure 3, the detection axes of the six-axis sensor 17 are shown as the XD axis, the YD axis, and the ZD axis. The XD axis, the YD axis, and the ZD axis are orthogonal to each other. The XD axis and the YD axis constitute the horizontal plane that is the reference for the installation angle of the projector 1. The ZD axis is an axis perpendicular to the horizontal plane formed by the XD axis and the YD axis. The six-axis sensor 17 is calibrated, for example, when the posture of the projector 1 is such that the horizontal direction is parallel to the horizontal plane formed by the XD axis and the YD axis.

[0037] The six-axis sensor 17 detects the angular velocity around the XD axis, the angular velocity around the YD axis, and the angular velocity around the ZD axis, and outputs the detected values to the control unit 10. Further, the six-axis sensor 17 detects the acceleration in the XD axis direction, the acceleration in the YD axis direction, and the acceleration in the ZD axis direction, and outputs the detected values to the control unit 10.

[0038] In the present embodiment, the installation angle of the projector 1 is the angle of the XD axis with respect to the X axis. Therefore, in the projector 1 of the present embodiment, the angle of the XD axis with respect to the X axis is adjusted by the user as the installation angle. The installation angle of the projector 1 of the present embodiment is set to 0° when the XD axis of the six-axis sensor 17 is parallel to the X axis, shows a negative value counterclockwise around the YD axis, and shows a positive value clockwise around the YD axis. The image G displayed by the projector 1 rotates around the point P according to the installation angle of the projector 1. The point P is the intersection of the optical axis AX of the image light projected by the projector 1 and the screen SC. The rotation angle of the image G displayed by the projector 1 of the present embodiment is set with the X axis being 0°, shows a negative value counterclockwise around the point P, and shows a positive value clockwise around the point P. In FIG. 3, the clockwise direction around the YD axis is indicated by the symbol CW, and the counterclockwise direction is indicated by the symbol CCW.

[0039] The projector 1 includes a projection unit 18 and a drive unit 19 that drives the projection unit 18. The projection unit 18 includes a light source 181, a light modulation device 182, and a projection optical system 183. The drive unit 19 includes a light source drive circuit 191 and a light modulation device drive circuit 192.

[0040] The light source drive circuit 191 is connected to the control unit 10 via the bus 20 and is also connected to the light source 181. The light source drive circuit 191 turns on or off the light source 181 according to the control of the control unit 10.

[0041] The optical modulation device drive circuit 192 is connected to the control unit 10 via the bus 20 and is also connected to the optical modulation device 182. The optical modulation device drive circuit 192 drives the optical modulation device 182 in accordance with the control of the control unit 10 and draws an image in frame units on the optical modulation elements included in the optical modulation device 182. Image data corresponding to each of the primary RGB colors is input to the optical modulation device drive circuit 192 from the image processing unit 14. R indicates red, G indicates green, and B indicates blue. The optical modulation device drive circuit 192 converts the input image data into a data signal suitable for the operation of the liquid crystal panel, which is the optical modulation element included in the optical modulation device 182. Based on the converted data signal, the optical modulation device drive circuit 192 applies a voltage to each pixel of each liquid crystal panel and draws an image on each liquid crystal panel.

[0042] The light source 181 is composed of a lamp such as a halogen lamp, a xenon lamp, or an ultra-high pressure mercury lamp, or a solid light source such as an LED or a laser light source. The light source 181 is lit by the power supplied from the light source drive circuit 191 and emits light toward the optical modulation device 182.

[0043] The optical modulation device 182 includes, for example, three liquid crystal panels corresponding to the three primary RGB colors. The light emitted from the light source 181 is separated into three color lights of RGB and is incident on the corresponding liquid crystal panels, respectively. Each of the three liquid crystal panels is a transmissive liquid crystal panel and modulates the transmitted light to generate image light. The image light modulated by passing through each liquid crystal panel is synthesized by a synthetic optical system such as a cross dichroic prism and is emitted to the projection optical system 183. In this embodiment, the case where the optical modulation device 182 includes a transmissive liquid crystal panel as the optical modulation element is exemplified. However, the optical modulation element may be a reflective liquid crystal panel or a digital micromirror device.

[0044] The projection optical system 183 includes lenses, mirrors, etc. that form an image of the image light modulated by the light modulation device 182 on the screen SC. The projection optical system 183 may include a zoom mechanism that enlarges or reduces the image G displayed on the screen SC, a focus adjustment mechanism that adjusts the focus, and the like.

[0045] As described above, the processor 110 functions as a projection control unit 111, an operation mode switching unit 112, a first mode execution unit 113, and a second mode execution unit 114.

[0046] The projection control unit 111 controls the image processing unit 14, the drive unit 19, etc. to display the image G on the screen SC.

[0047] Specifically, the projection control unit 111 controls the image processing unit 14 to cause the image processing unit 14 to process the image data developed in the frame memory 13. At this time, the projection control unit 111 reads out the parameters required for the processing by the image processing unit 14 from the storage unit 120 and outputs them to the image processing unit 14.

[0048] The projection control unit 111 controls the light source drive circuit 191 and the light modulation device drive circuit 192 to turn on the light source 181 by the light source drive circuit 191, drive the light modulation device 182 by the light modulation device drive circuit 192, and display the image G on the screen SC by the projection unit 18. Further, the projection control unit 111 controls the projection optical system 183 to activate the motor and adjust the zoom and focus of the projection optical system 183.

[0049] The operation mode switching unit 112 switches the operation mode of the projector 1 to any one of a normal mode, a first mode, and a second mode. The normal mode is an operation mode other than the first mode and the second mode, and is an operation mode in which an image based on the image data supplied from the image supply device 2 can be displayed on the screen SC. The first mode is an operation mode in which the projector 1 operates as a first projector. The second mode is an operation mode in which the projector 1 operates as a second projector. When the operation mode switching unit 112 receives an instruction from the user via the operation unit 15 to operate the projector 1 as a first projector, it switches the operation mode of the projector 1 from the normal mode to the first mode. When the operation mode switching unit 112 receives an instruction from the user via the operation unit 15 to operate the projector 1 as a second projector, it switches the operation mode of the projector 1 from the normal mode to the second mode. When the operation mode switching unit 112 receives an instruction from the user via the operation unit 15 to end the adjustment of the installation angle of the projector 1, it switches the operation mode of the projector 1 from the first mode or the second mode to the normal mode.

[0050] The first mode execution unit 113 is a functional unit that the processor 110 functions when the operation mode of the projector 1 is the first mode. The first mode execution unit 113 functions as a first angle information generation unit 1131, a transmission unit 1132, and a first image generation unit 1133.

[0051]

[0052] The first angle information generation unit 1131 generates first angle information indicating the installation angle of the projector 1 operating as a first projector based on the detection value of the six-axis sensor 17. The first angle information generation unit 1131 calculates the installation angle of the projector 1 operating as a first projector with respect to the X axis by time-integrating the angular velocity around the YD axis, and generates first angle information indicating the calculated installation angle.The transmission unit 1132 transmits the first angle information generated by the first angle information generation unit 1131 to another projector 1 connected to the network NW via the second interface 12. Note that the address of the other projector 1 is stored in the storage unit 120 in advance.

[0053] The first image generation unit 1133 generates a second guide image GD2. The second guide image GD2 is an image G that guides the adjustment of the installation angle of the second projector. When the first image generation unit 1133 generates the second guide image GD2, it expands the image data of the second guide image GD2 in the frame memory.

[0054] FIG. 4 is a diagram showing an example of the second guide image GD2 displayed on the screen SC.

[0055] The second guide image GD2 includes a reference line segment KL. The reference line segment KL is a line segment indicating the reference for the installation angle of the second projector. The reference line segment KL in this embodiment is a line segment parallel to the X-axis. In FIG. 4, an example of the second guide image GD2 displayed by the first projector tilted by α° with respect to the X-axis is illustrated. Therefore, the second guide image GD2 shown in FIG. 4 is tilted by α° with respect to the X-axis. Here, α is a positive value. The reference line segment KL is an example of the "third line segment".

[0056] The first image generation unit 1133 generates a second guide image GD2 including a reference line segment KL parallel to the X-axis.

[0057] Returning to the description of the functional units of the processor 110, the second mode execution unit 114 is a functional unit that the processor 110 functions when the operation mode of the projector 1 is the second mode. The second mode execution unit 114 functions as a second angle information generation unit 1141, a reception unit 1142, and a second image generation unit 1143. The second angle information generation unit 1141 is an example of the "generation unit".

[0058] The second angle information generation unit 1141 generates second angle information indicating the installation angle of the projector 1 operating as the second projector based on the detection values of the six-axis sensor 17. The second angle information generation unit 1141 calculates the installation angle of the projector 1 operating as the second projector with respect to the X-axis by time-integrating the angular velocity around the YD axis, and generates second angle information indicating the calculated installation angle.

[0059] The receiving unit 1142 receives the first angle information generated by the first angle information generation unit 1131 from the first projector via the second interface 12.

[0060] The second image generation unit 1143 generates the first guide image GD1. The first guide image GD1 is an image for guiding the adjustment of the installation angle of the second projector. When the second image generation unit 1143 generates the first guide image GD1, it expands the image data of the first guide image GD1 in the frame memory.

[0061] FIG. 5 is a diagram showing an example of the first guide image GD1 displayed on the screen SC.

[0062] The first guide image GD1 includes a first line segment LS1. The first line segment LS1 is a line segment that inclines at an angle corresponding to the installation angle of the first projector and indicates the installation angle of the first display device. The first line segment LS1 inclines with respect to the X-axis by an angle corresponding to the difference between the installation angle of the first projector and the installation angle of the second projector. The color of the first line segment LS1 changes according to the difference between the installation angle of the first projector and the installation angle of the second projector. The first guide image GD1 is an example of information indicating the difference.

[0063] The first guide image GD1 includes a second line segment LS2. The second line segment LS2 is a line segment indicating an inclination at which the difference between the installation angle of the second projector and the installation angle of the first projector becomes 0°. The second line segment LS2 inclines from the first line segment LS1 by an angle indicating the difference between the installation angle of the second projector and the installation angle of the first projector. In the present embodiment, the color of the first line segment LS1 is the same as the color of the reference line segment KL, but it may be different from the color of the reference line segment KL.

[0064] The first guide image GD1 includes a numerical value NV indicating the difference between the installation angle of the second projector and the installation angle of the first projector. The color of the numerical value NV changes according to the magnitude of the value. Note that the first guide image GD1 of the present embodiment is configured not to include the numerical value NV when the difference between the installation angle of the second projector and the installation angle of the first projector is 0°, but may include a numerical value NV indicating 0° even when the difference is 0°.

[0065] The second image generation unit 1143 generates the first guide image GD1 based on the second angle information generated by the second angle information generation unit 1141 and the first angle information received by the reception unit 1142.

[0066] For example, assume that the installation angle of the first projector is α° with respect to the X-axis and the installation angle of the second projector is β° with respect to the X-axis. Here, β and α are positive values, and β is larger than α. The second image generation unit 1143 performs an operation of "β - α" to obtain the difference between the installation angle of the first projector and the installation angle of the second projector. Next, the second image generation unit 1143 includes the first line segment LS1 inclined by (β - α)° from the X-axis in the first guide image GD1. The second image generation unit 1143 includes in the first guide image GD1 a second line segment LS2 having a color corresponding to (β - α)° and inclined by -(β - α)° from the first line segment LS1. The second line segment LS2 of the present embodiment is a line segment parallel to the X-axis. Next, the second image generation unit 1143 includes in the first guide image GD1 a numerical value NV having a color corresponding to (β - α)° and indicating (β - α)°.

[0067] Next, the operation of the projection system 1000 related to the adjustment of the installation angle of the projector 1 will be described.

[0068] FIG. 6 is a flowchart showing the operation of the projection system 1000. In FIG. 6, flowchart FA shows the operation of the first projector, and flowchart FB shows the operation of the second projector. In the case of FIG. 1, flowchart FA shows the operation of projector 1A, and flowchart FB shows the operations of projectors 1B, 1C, 1D, 1E, and 1F.

[0069] As shown in flowchart FA, the first angle information generation unit 1131 of the first mode execution unit 113 determines whether an instruction to complete the adjustment of the installation angle has been received via the operation unit 15 (step SA1).

[0070] If the first angle information generation unit 1131 determines that an instruction to complete the adjustment of the installation angle of the first projector has not been received (step SA1: NO), it makes the determination of step SA1 again.

[0071] On the other hand, when the first angle information generation unit 1131 determines that an instruction to complete the adjustment of the installation angle of the first projector has been received (step SA1: YES), it generates the first angle information (step SA2). In step SA2, the first angle information generation unit 1131 generates the first angle information based on the detection value output by the 6-axis sensor 17 after the determination in step SA1.

[0072] Next, the transmission unit 1132 transmits the first angle information generated by the first angle information generation unit 1131 to each of the second projectors (step SA3).

[0073] Next, the first image generation unit 1133 generates the second guide image GD2 (step SA4).

[0074] Next, the projection control unit 111 displays the second guide image GD2 generated in step SA4 on the screen SC (step SA5).

[0075] Next, the operation mode switching unit 112 determines whether an instruction to end the adjustment of the installation angle of the projector 1 has been received from the user via the operation unit 15 (step SA6).

[0076] If the operation mode switching unit 112 determines that an instruction to end the adjustment of the installation angle of the projector 1 has not been received (step SA6: NO), the projection control unit 111 continues to display the second guide image GD2.

[0077] On the other hand, if the operation mode switching unit 112 determines that an instruction to end the adjustment of the installation angle of the projector 1 has been received (step SA6: YES), the projection control unit 111 ends the display of the second guide image GD2 (step SA7).

[0078] Next, the operation mode switching unit 112 switches the operation mode of the projector 1 from the first mode to the normal mode (step SA8).

[0079] As shown in the flowchart FB, the receiving unit 1142 of the second mode execution unit 114 receives the first angle information from the first projector (step SB1).

[0080] Next, the second angle information generation unit 1141 generates second angle information based on the detection value output by the six-axis sensor 17 (step SB2).

[0081] Next, the first image generation unit 1143 generates the first guide image GD1 based on the first angle information received in step SB1 and the second angle information generated in step SB2 (step SB3).

[0082] Next, the projection control unit 111 projects the first guide image GD1 generated in step SB3 (step SB4).

[0083] Next, the operation mode switching unit 112 determines whether it has received an instruction from the user to finish adjusting the installation angle of the projector 1 via the operation unit 15 (step SB5).

[0084] If the operation mode switching unit 112 determines that it has not received an instruction to finish adjusting the installation angle of the projector 1 (step SB5: NO), the processor 110 of the second projector repeats the processing after step SB2.

[0085] On the other hand, if the operation mode switching unit 112 determines that it has received an instruction to finish adjusting the installation angle of the projector 1 (step SB5: YES), the projection control unit 111 ends the display of the first guide image GD1 (step SB6).

[0086] Next, the operation mode switching unit 112 switches the operation mode of the projector 1 from the second mode to the normal mode (step SB7).

[0087] FIG. 7 is a diagram showing an example of an image G displayed during the adjustment of the installation angle of the projector 1.

[0088] In FIG. 7, the projector 1A operating as the first projector displays the second guide image GD2 as the image G1. The second guide image GD2 displayed as the image G1 includes a reference line segment KL parallel to the X axis.

[0089] In FIG. 7, the projector 1B operating as the second projector displays the first guide image GD1 as the image G2. This first guide image GD1 indicates that the difference between the installation angle of the projector 1A and the installation angle of the projector 1B is 10°. In FIG. 7, the first guide image GD1, which is the image G2, includes a first line segment LS1 inclined 10° with respect to the X-axis and a second line segment LS2 inclined -10° from the first line segment LS1. The color of this second line segment LS2 is a color corresponding to the fact that the difference between the installation angle of the projector 1A and the installation angle of the projector 1B is 10°. Also, in FIG. 7, the first guide image GD1, which is the image G2, includes a numerical value NV indicating that the difference between the installation angle of the projector 1A and the installation angle of the projector 1B is 10°. This numerical value NV is a color corresponding to the fact that the difference between the installation angle of the projector 1A and the installation angle of the projector 1B is 10°.

[0090] In FIG. 7, the projector 1C operating as the second projector displays the first guide image GD1 as the image G3. In FIG. 7, in the first guide image GD1 displayed as the image G3, the inclination of the first line segment LS1 and the inclination of the second line segment LS2 are the same, that is, the installation angle of the projector 1A and the installation angle of the projector 1C are the same and the numerical value NV is not included. That is, in FIG. 7, in the first guide image GD1 displayed as the image G3, it is shown that the difference between the installation angle of the projector 1A and the installation angle of the projector 1C is 0°. In FIG. 7, the color of the second line segment LS2 included in the first guide image GD1, which is the image G3, is a color corresponding to the fact that the difference between the installation angle of the projector 1A and the installation angle of the projector 1 C C is 0°, for example, the same color as the first line segment LS1.

[0091] In FIG. 7, the projector 1D operating as the second projector displays the first guide image GD1 as the image G4. This first guide image GD1 indicates that the difference between the installation angle of the projector 1A and the installation angle of the projector 1D is 5°. In FIG. 7, the first guide image GD1, which is the image G4, includes a first line segment LS1 inclined 5° with respect to the X-axis and a second line segment LS2 inclined -5° from the first line segment LS1. The color of this second line segment LS2 is a color corresponding to the fact that the difference between the installation angle of the projector 1A and the installation angle of the projector 1D is 5°. Also, in FIG. 7, the first guide image GD1, which is the image G4, includes a numerical value NV indicating that the difference between the installation angle of the projector 1A and the installation angle of the projector 1D is 5°. This numerical value NV is a color corresponding to the fact that the difference between the installation angle of the projector 1A and the installation angle of the projector 1D is 5°.

[0092] In FIG. 7, the projector 1E operating as the second projector displays the first guide image GD1 as the image G5. This first guide image GD1 indicates that the difference between the installation angle of the projector 1A and the installation angle of the projector 1E is 20°. In FIG. 7, the first guide image GD1, which is the image G5, includes a first line segment LS1 inclined 20° with respect to the X-axis and a second line segment LS2 inclined -20° from the first line segment LS1. The color of this second line segment LS2 is a color corresponding to the fact that the difference between the installation angle of the projector 1A and the installation angle of the projector 1E is 20°. Also, in FIG. 7, the first guide image GD1, which is the image G5, includes a numerical value NV indicating that the difference between the installation angle of the projector 1A and the installation angle of the projector 1E is 20°. This numerical value NV is a color corresponding to the fact that the difference between the installation angle of the projector 1A and the installation angle of the projector 1E is 20°.

[0093] In FIG. 7, the projector 1F operating as the second projector displays the first guide image GD1 as the image G6. This first guide image GD1 indicates that the difference between the installation angle of the projector 1A and the installation angle of the projector 1F is 30°. In FIG. 7, the first guide image GD1, which is the image G6, includes a first line segment LS1 inclined at 30° with respect to the X-axis and a second line segment LS2 inclined at -30° from the first line segment LS1. The color of this first line segment LS1 is a color corresponding to the fact that the difference between the installation angle of the projector 1A and the installation angle of the projector 1F is 30°. Also, in FIG. 7, the first guide image GD1, which is the image G6, includes a numerical value NV indicating that the difference between the installation angle of the projector 1A and the installation angle of the projector 1F is 30°. This numerical value NV is a color corresponding to the fact that the difference between the installation angle of the projector 1A and the installation angle of the projector 1F is 30°.

[0094] As shown in FIG. 7, in the first guide image GD1 displayed by the second projector, the difference between the installation angle of the projector 1A and the installation angle of the projector 1B is visualized. Therefore, the user can easily grasp the difference between the installation angle of the first projector and the installation angle of the second projector, and can easily adjust the installation angle of the second projector. Also, as shown in FIG. 7, in the second guide image GD2 displayed by the first projector, the installation angle to be adjusted by the second projector is visualized. Therefore, the user can more easily adjust the installation angle of the second projector.

[0095] As described above, the display method by the projection system 1000 includes: the first projector generating first angle information indicating the installation angle of the first projector based on the detection value of the six-axis sensor 17 provided in the first projector; the second projector generating second angle information indicating the installation angle of the second projector based on the detection value of the six-axis sensor 17 provided in the second projector; and the second projector displaying information indicating the difference between the installation angle of the first projector indicated by the first angle information acquired from the first projector and the installation angle of the second projector indicated by the second angle information.

[0096] According to this, a user who adjusts the installation angle of the projector 1 can grasp the difference between the installation angle of the first projector and the installation angle of the second projector. Therefore, the user can install a plurality of projectors 1 at any aligned angle by adjusting the installation angle of the second projector so that the difference becomes 0°. Thus, when the user installs a plurality of projectors 1 at any aligned angle, the user can easily adjust the installation angle of the projector 1 without performing complicated operations such as inputting the installation angle for each projector 1.

[0097] The display method by the projection system 1000 includes the second projector displaying a first guide image GD1 for guiding the adjustment of the installation angle of the second projector. The first guide image GD1 indicates the difference between the installation angle of the first projector and the installation angle of the second projector.

[0098] According to this, a user who adjusts the installation angle of the projector 1 can grasp the difference between the installation angle of the first projector and the installation angle of the second projector, and can assist the user in adjusting the installation angle of the projector 1. Therefore, when installing a plurality of projectors 1 at any aligned angle, the user can easily and appropriately adjust the installation angle of the projector 1.

[0099] The first guide image GD1 includes a numerical value NV indicating the difference between the installation angle of the first projector and the installation angle of the second projector.

[0100] According to this, a user who adjusts the installation angle of projector 1 can easily grasp the difference between the installation angle of the first projector and the installation angle of the second projector. Therefore, when installing a plurality of projectors 1 at arbitrary aligned angles, the user can more easily adjust the installation angle of projector 1.

[0101] The color of the numerical value NV changes according to the difference between the installation angle of the first projector and the installation angle of the second projector.

[0102] According to this, even when a user who adjusts the installation angle of projector 1 cannot grasp the numerical value NV for a certain reason, the user can grasp the difference between the installation angle of the first projector and the installation angle of the second projector by the color of the numerical value NV. Therefore, when installing a plurality of projectors 1 at arbitrary aligned angles, the user can easily adjust the installation angle of projector 1. For example, even when the screen SC and projector 1 are so far apart that the user cannot grasp the numerical value NV, the user can easily adjust the installation angle of projector 1.

[0103] The first guide image GD1 includes a first line segment LS1 and a second line segment LS2. The second line segment LS2 is inclined from the first line segment LS1 by an angle indicated by the difference between the installation angle of the first projector and the installation angle of the second projector.

[0104] According to this, a user who adjusts the installation angle of projector 1 can easily grasp the difference between the installation angle of the first projector and the installation angle of the second projector. Therefore, when installing a plurality of projectors 1 at arbitrary aligned angles, the user can more easily adjust the installation angle of projector 1.

[0105] The color of the second line segment LS2 changes according to the difference between the installation angle of the first projector and the installation angle of the second projector.

[0106] According to this, even when a user who adjusts the installation angle of the projector 1 cannot grasp the inclination of the second line segment LS2 with respect to the first line segment LS1 for a certain reason, the user can grasp the difference between the installation angle of the first projector and the installation angle of the second projector by the color of the second line segment LS2. Therefore, when a plurality of projectors 1 are installed at arbitrary aligned angles, the user can easily adjust the installation angle of the projector 1. For example, even when the screen SC and the projector 1 are so far apart that the user cannot grasp the inclination of the second line segment LS2 with respect to the first line segment LS1, the user can easily adjust the installation angle of the projector 1.

[0107] The display method of the projection system 1000 includes the first projector displaying a second guide image GD2 for guiding the adjustment of the installation angle of the second projector. The second guide image GD2 includes a reference line segment KL. The reference line segment KL indicates the reference for the installation angle of the second projector.

[0108] According to this, in the second guide image GD2 displayed by the first projector, the installation angle to be adjusted by the second projector is visualized. Therefore, when a plurality of projectors 1 are installed at arbitrary aligned angles, the user can more easily adjust the installation angle of the projector 1.

[0109] The projection system 1000 includes a first projector and a second projector. The projection system 1000 generates first angle information indicating the installation angle of the first projector based on the detection value of a six-axis sensor 17 provided in the first projector, and the second projector generates second angle information indicating the installation angle of the second projector based on the detection value of a six-axis sensor 17 provided in the second projector. The second projector displays information indicating the difference between the installation angle of the first projector indicated by the first angle information obtained from the first projector and the installation angle of the second projector indicated by the second angle information.

[0110] According to this, the same effect as the display method by the projection system 1000 is achieved.

[0111] The second projector includes a six-axis sensor 17 that detects the installation angle of the second projector, a second angle information generation unit 1141 that generates second angle information indicating the installation angle of the second projector based on the detection value of the six-axis sensor 17, a reception unit 1142 that receives first angle information indicating the installation angle of a first projector different from the second projector, and a projection control unit 111 that displays information indicating the difference between the installation angle indicated by the first angle information received by the reception unit 1142 and the installation angle indicated by the second angle information generated by the second angle information generation unit 1141.

[0112] According to this, the same effect as the display method by the projection system 1000 is achieved.

[0113] [Second Embodiment] The second embodiment will be described. In each of the embodiments illustrated below, for elements whose operations and functions are the same as those in the first embodiment, the reference numerals used in the description of the first embodiment are reused and the detailed description of each is appropriately omitted. The first guide image GD1 of the first embodiment includes a first line segment LS1 and a second line segment LS2. The first guide image GD1 of the second embodiment includes the second line segment LS2 and does not include the first line segment LS1. Similar to the first embodiment, the color of the second line segment LS2 of the second embodiment changes according to the difference between the installation angle of the first projector and the installation angle of the second projector.

[0114] FIG. 8 is a diagram showing an example of an image projected when adjusting the installation angle of the projector 1.

[0115] In FIG. 8, the projector 1A operating as the first projector displays the second guide image GD2 as the image G1. The second guide image GD2 displayed as the image G1 includes a reference line segment KL parallel to the X-axis direction.

[0116] In FIG. 8, the projector 1B operating as the second projector displays the first guide image GD1 as the image G2. In FIG. 8, the first guide image GD1 displayed as the image G2 indicates that the difference between the installation angle of the projector 1A and the installation angle of the projector 1B is 10°.

[0117] In FIG. 8, the projector 1C operating as the second projector displays the first guide image GD1 as the image G3. In the first guide image GD1 displayed as the image G3 in FIG. 8, the installation angles of the projector 1A and the projector 1C are the same and do not include the numerical value NV. In FIG. 8, the first guide image GD1 displayed as the image G3 indicates that the difference between the installation angle of the projector 1A and the installation angle of the projector 1C is 0°.

[0118] In FIG. 8, the projector 1D operating as the second projector displays the first guide image GD1 as the image G4. In FIG. 8, the first guide image GD1 displayed as the image G4 indicates that the difference between the installation angle of the projector 1A and the installation angle of the projector 1D is 5°.

[0119] In FIG. 8, the projector 1E operating as the second projector displays the first guide image GD1 as the image G5. In FIG. 8, the first guide image GD1 displayed as the image G5 indicates that the difference between the installation angle of the projector 1A and the installation angle of the projector 1E is 20°.

[0120] In FIG. 8, the projector 1F operating as the second projector displays the first guide image GD1 as the image G6. In FIG. 8, the first guide image GD1 displayed as the image G6 indicates that the difference between the installation angle of the projector 1A and the installation angle of the projector 1F is 30°.

[0121] In addition, in the second embodiment, the first guide image GD1 including the numerical value NV is exemplified, but a configuration in which the first guide image GD1 not including the numerical value NV is displayed may also be used.

[0122] As described above, in the second embodiment, the first guide image GD1 includes the second line segment LS2. The color of the second line segment LS2 changes according to the difference between the installation angle of the first projector and the installation angle of the second projector.

[0123] According to this, a user who adjusts the installation angle of the projector 1 can easily grasp the difference between the installation angle of the first projector and the installation angle of the second projector. Therefore, when installing a plurality of projectors 1 at arbitrary aligned angles, the user can more easily adjust the installation angle of the projector 1.

[0124] [Third Embodiment] The third embodiment will be described. The first guide image GD1 of the first embodiment includes a first line segment LS1 and a second line segment LS2. The first guide image GD1 of the third embodiment includes the first line segment LS1 and does not include the second line segment LS2. The color of the first line segment LS1 of the third embodiment changes according to the difference between the installation angle of the first projector and the installation angle of the second projector. The second image generation unit 1143 of the third embodiment includes the first line segment LS1 of a color corresponding to the difference between the installation angle of the first projector and the installation angle of the second projector in the first guide image GD1.

[0125] FIG. 9 is a diagram showing an example of an image displayed when adjusting the installation angle of the projector 1.

[0126] In FIG. 9, the projector 1A operating as the first projector displays the second guide image GD2 as the image G1. The second guide image GD2 displayed as the image G1 includes a reference line segment KL parallel to the X-axis direction.

[0127] In FIG. 9, the projector 1B operating as the second projector displays the first guide image GD1 as the image G2. In FIG. 9, the first guide image GD1 displayed as the image G2 indicates that the difference between the installation angle of the projector 1A and the installation angle of the projector 1B is 10°. In FIG. 9, the color of the first line segment LS1 included in the first guide image GD1 which is the image G2 is a color corresponding to the fact that the difference between the installation angle of the projector 1A and the installation angle of the projector 1B is 10°.

[0128] In FIG. 9, the projector 1C operating as the second projector displays the first guide image GD1 as the image G3. In FIG. 9, the first guide image GD1 displayed as the image G3 indicates that the difference between the installation angle of the projector 1A and the installation angle of the projector 1C is 0°. In FIG. 9, the color of the first line segment LS1 included in the first guide image GD1 which is the image G3 is a color corresponding to the fact that the difference between the installation angle of the projector 1A and the installation angle of the projector 1C is 0°, and is, for example, the same color as the reference line segment KL.

[0129] In FIG. 9, a projector 1D operating as a second projector displays a first guide image GD1 as an image G4. In FIG. 9, the first guide image GD1 displayed as the image G4 indicates that the difference between the installation angle of the projector 1A and the installation angle of the projector 1D is 5°. In FIG. 9, the color of the first line segment LS1 included in the first guide image GD1 which is the image G4 is a color corresponding to the fact that the difference between the installation angle of the projector 1A and the installation angle of the projector 1D is 5°.

[0130] In FIG. 9, a projector 1E operating as a second projector is the 1 guide image GD 1 as an image G5. In FIG. 9, the 1 guide image GD 1 projected as the image G5 indicates that the difference between the installation angle of the projector 1A and the installation angle of the projector 1E is 20°. In FIG. 9, the color of the first line segment LS1 included in the first guide image GD1 which is the image G5 is a color corresponding to the fact that the difference between the installation angle of the projector 1A and the installation angle of the projector 1E is 20°.

[0131] In FIG. 9, a projector 1F operating as a second projector projects a 1 guide image GD 1 as an image G6. In FIG. 9, the 1 guide image GD 1 projected as the image G6 indicates that the difference between the installation angle of the projector 1A and the installation angle of the projector 1F is 30°. In FIG. 9, the color of the first line segment LS1 included in the first guide image GD1 which is the image G6 is a color corresponding to the fact that the difference between the installation angle of the projector 1A and the installation angle of the projector 1F is 30°.

[0132] Note that in the third embodiment, the first guide image GD1 including the numerical value NV is exemplified, but a configuration in which the first guide image GD1 not including the numerical value NV is displayed may also be used.

[0133] As described above, in the third embodiment, the first guide image GD1 includes the first line segment LS1. The first line segment LS1 is inclined at an angle corresponding to the installation angle of the first projector. The color of the first line segment LS1 changes according to the difference between the installation angle of the first projector and the installation angle of the second projector.

[0134] According to this, a user who adjusts the installation angle of the projector 1 can easily grasp the difference between the installation angle of the first projector and the installation angle of the second projector. Therefore, when installing a plurality of projectors 1 at arbitrary aligned angles, the user can more easily adjust the installation angle of the projector 1.

[0135] Each of the above-described embodiments is a preferred embodiment of the present invention. However, the present invention is not limited to this embodiment, and various modifications can be made without departing from the gist of the present invention.

[0136] In each of the above-described embodiments, the projector 1A is exemplified as the first projector, and the projectors 1B, 1C, 1D, 1E, and 1F are exemplified as the second projector. However, the first projector and the second projector are not limited to these projectors 1. For example, the first projector may be the projector 1B, and the second projector may be the projectors 1A, 1C, 1D, 1E, and 1F.

[0137] In each of the above-described embodiments, the 6-axis sensor 17 is exemplified as the "sensor", but the "sensor" of the present disclosure is not limited to the 6-axis sensor 17, and may be a 9-axis sensor including a geomagnetic sensor or a 3-axis gyro sensor.

[0138] In each of the above-described embodiments, the case where the reference line segment KL is a line segment parallel to the X-axis has been exemplified. However, the angle of the reference line segment KL is not limited to being parallel to the X-axis, and may be an angle specified in advance by the user. In this case, the second line segment LS2 included in the first guide image GD1 inclines at the same angle as the reference line segment KL.

[0139] In each of the above-described embodiments, the angle of the XD axis with respect to the X-axis has been exemplified as the installation angle of the projector 1. However, the installation angle of the projector 1 may be an angle taking into account the angle of the YD axis with respect to the Y-axis and the angle of the ZD axis with respect to the Z-axis. In the case of this configuration, the first angle information generation unit 1131 generates first angle information indicating the installation angle of the first projector based on the angular velocity around each of the three axes. Also, in the case of this configuration, the second angle information generation unit 1141 generates second angle information indicating the installation angle of the second projector based on the angular velocity around each of the three axes. Also, in the case of this configuration, the second image generation unit 1143 generates a first guide image GD1 indicating the difference between the installation angle of the first projector based on the angular velocity around the three axes and the installation angle of the second projector based on the angular velocity around the three axes.

[0140] In each of the above-described embodiments, the case where the user manually adjusts the installation angle of the projector 1 has been exemplified. However, the projector 1 may automatically adjust the installation angle in response to an instruction by a remote controller 3 or the like. When automatically adjusting the installation angle, the projector 1 has a function of rotating the image G to be displayed on the screen SC.

[0141] In each of the above-described embodiments, the display of an image on the screen SC has been exemplified as a mode of notifying information indicating the difference between the installation angle of the first projector and the installation angle of the second projector. However, the mode of notifying the information indicating the difference is not limited to image display, and may be, for example, voice output. In the case of voice output, the processor 110 functions as a voice output control unit that causes the voice processing unit 16 to output the difference between the installation angle of the first projector and the installation angle of the second projector.

[0142] Further, the functions of the processor 110 may be implemented by a plurality of processors or semiconductor chips.

[0143] Also, each functional unit shown in FIG. 2 shows a functional configuration and does not limit a specific implementation form. For example, in the projector 1, it is not necessarily required that hardware corresponding to each functional unit be individually implemented, and of course, a configuration may be adopted in which one processor executes a program to realize the functions of a plurality of functional units. Further, in each of the above embodiments, part of the functions realized by software may be realized by hardware, or part of the functions realized by hardware may be realized by software. In addition, the specific detailed configuration of other parts of the projector 1 can be arbitrarily changed without departing from the spirit.

[0144] Also, for example, the step units of the operations shown in FIG. 6 are divided according to the main processing content in order to facilitate the understanding of the operations of the projection system 1000, and the present disclosure is not limited by the way of dividing the processing units and the names. Depending on the processing content, it may be divided into many step units. Also, one step unit may be divided to include many processes. Further, the order of the steps may be appropriately changed as long as it does not interfere with the spirit of the present disclosure.

[0145] The display method by the projection system 1000 can be realized by causing the processor 110 provided in the projector 1 to execute a program corresponding to the display method. Also, this program can be recorded on a recording medium readable by the processor 110. As the recording medium, a magnetic or optical recording medium or a semiconductor memory device can be used. The recording medium may be the memory provided in the projector 1. Further, a program corresponding to the display method by the projection system 1000 may be stored in the server device, and the display method by the projection system 1000 may be realized by downloading the program from the server device to the projector 1.

[0146] Although the projector 1 is exemplified as the display device, the display device is not limited to the projector 1. For example, it includes self-luminous display devices such as a liquid crystal display device that displays an image on a liquid crystal display panel, and a display device that displays an image on an organic EL panel, and also includes monitors or liquid crystal TVs, etc. In addition, various other display devices are also included.

Explanation of Signs

[0147] 1... Projector, 1A... Projector (First Display Device), 1B... Projector (Second Display Device, Display Device), 1C... Projector (Second Display Device, Display Device), 1D... Projector (Second Display Device, Display Device), 1E... Projector (Second Display Device, Display Device), 1F... Projector (Second Display Device, Display Device), 10... Control Unit, 11... First Interface, 12... Second Interface, 13... Frame Memory, 14... Image Processing Unit, 15... Operation Unit, 16... Audio Processing Unit, 17... 6-Axis Sensor (Sensor), 18... Projection Unit, 19... Driving Unit, 20... Bus, 110... Processor, 111... Projection Control Unit (Notification Unit), 112... Operation Mode Switching Unit, 113... First Mode Execution Unit, 114... Second Mode Execution Unit, 120... Storage Unit, 121... Control Program, 122... Setting Data, 151... Operation Panel, 152... Remote Control Light Receiving Unit, 161... Speaker, 162... Amplifier, 163... Signal Processing Circuit, 181... Light Source, 182... Light Modulation Device, 183... Projection Optical System, 191... Light Source Driving Circuit, 192... Light Modulation Device Driving Circuit, 1000... Projection System (Display System), 1131... First Angle Information Generation Unit, 1132... Transmission Unit, 1133... First Image Generation Unit, 1141... Second Angle Information Generation Unit, 1142... Reception Unit, 1143... Second Image Generation Unit (Generation Unit), GD1... First Guide Image, GD2... Second Guide Image, KL... Reference Line Segment (Third Line Segment), LS1... First Line Segment, LS2... Second Line Segment, NV... Numerical Value, NW... Network, SC... Screen.

Claims

1. generating first angle information indicating an installation angle of the first display device based on a detection value of a sensor included in the first display device; generating second angle information indicating an installation angle of the second display device based on a detection value of a sensor included in the second display device; the second display device notifying information indicating a difference between the installation angle of the first display device indicated by the first angle information and the installation angle of the second display device indicated by the second angle information; the first display device displaying a second guide image for guiding adjustment of the installation angle of the second display device, the notifying is the second display device displaying a first guide image for guiding adjustment of the installation angle of the second display device, the first guide image includes at least one of a first line segment indicating the installation angle of the first display device and a second line segment inclined by an angle corresponding to the difference from the first line segment; the second guide image includes a third line segment indicating a reference of the installation angle of the second display device, A display method comprising the steps of:

2. the first guide image includes a numerical value indicating the difference, The display method according to claim 1.

3. a color of the numerical value changes according to the difference, The display method according to claim 2.

4. a color of the second line segment changes according to the difference, The display method according to any one of claims 1 to 3.

5. a color of the second line segment changes according to the difference, The display method according to any one of claims 1 to 4.

6. a color of the first line segment changes according to the difference, The display method according to claim 1.

7. a first display device, a second display device, and the first display device generates first angle information indicating an installation angle of the first display device based on a detection value of a sensor included in the first display device, the second display device generates second angle information indicating an installation angle of the second display device based on a detection value of a sensor included in the second display device, the first display device displays a second guide image for guiding adjustment of the installation angle of the second display device, the second display device notifies, by displaying a first guide image for guiding adjustment of the installation angle of the second display device, information indicating a difference between the installation angle of the first display device indicated by the first angle information acquired from the first display device and the installation angle of the second display device indicated by the second angle information, the first guide image includes at least one of a first line segment indicating the installation angle of the first display device and a second line segment inclined by an angle corresponding to the difference from the first line segment, the second guide image includes a third line segment indicating a reference of the installation angle of the second display device, A display system.

Images