CROSS-REFERENCE

The entire disclosure of Japanese Patent Application No. 2017-146227, filed Jul. 28, 2017 is expressly incorporated by reference herein.

BACKGROUND

1. Technical Field

The present invention relates to a projector, a method for controlling a projector, and a display system.

2. Related Art

According to the related art, a system which displays content using a plurality of projectors is known, as disclosed in JP-A-2016-170351. In such a system, the plurality of projectors can be set to the same time via communication and thus can collaborate with each other to display content.

However, to make the plurality of projectors collaborate with each other, it is necessary to communicate information of content to be played back to each projector and instruct each projector to play back the content, in addition to setting the projectors to the same time. This involves complicated operations and therefore reduces user-friendliness.

SUMMARY

An advantage of some aspects of the invention is that collaborative projection by a plurality of projectors is easily realized.

The invention can be implemented as the following forms or application examples.

Application Example 1

A projector according to this application example includes: a projection unit which projects content in response to a playback instruction to play back the content; and a transmitting unit which transmits the playback instruction to another projector. The playback instruction includes specification information which specifies the content.

With such a configuration, the projector projects the content in response to the playback instruction including the specification information specifying the content, and also transmits the playback instruction to another projector, thus enabling another projector to project the content in response to the playback instruction. This enables easy execution of collaborative projection by a plurality of projectors.

Application Example 2

It is preferable that the projector according to the foregoing application example includes a storage unit which stores a schedule, and that the playback instruction is generated based on the schedule.

With such a configuration, the playback instruction is generated based on the stored schedule. This enables execution of collaborative projection by a plurality of projectors.

Application Example 3

In the projector according to the foregoing application example, it is preferable that the storage unit stores group information and that the transmitting unit transmits the playback instruction to the another projector included in the group information.

With such a configuration, the projector based on the stored group information can be instructed to carry out collaborative projection.

Application Example 4

In the projector according to the foregoing application example, the playback instruction may be a combination of a command designating projection of the content and the specification information.

Application Example 5

A projector according to this application example includes: a receiving unit which receives a playback instruction for content from another projector; and a projection unit which projects the content in response to the playback instruction. The playback instruction includes specification information which specifies the content.

With such a configuration, the projector can receive the playback instruction including the specification information specifying the content, from another projector, and can project the content in response to the received playback instruction. This enables easy execution of collaborative projection by a plurality of projectors.

Application Example 6

In the projector according to the foregoing application example, it is preferable that if the receiving unit receives the playback instruction specifying second content when the projection unit projects first content, the projection unit projects the second content instead of the first content.

With such a configuration, when receiving the playback instruction specifying content, the projector projects the content designated by the playback instruction, instead of the currently projected content. This enables the projector to immediately execute collaborative projection with another projector.

Application Example 7

In the projector according to the foregoing application example, if the receiving unit receives the playback instruction specifying first content when the projector projects the first content, the projection unit may correct a first timing when the first content is projected, based on a time difference between the first timing and a second timing when the playback instruction is received.

With such a configuration, the projector can properly correct the timing of carrying out collaborative projection with another projector, based on the time difference from the timing of another projector.

Application Example 8

A method for controlling a projector according to this application example includes: accepting a playback instruction including specification information which specifies content; transmitting the playback instruction to another projector via communication; and starting projection of the content.

With such a method, the projector projects the content in response to the playback instruction including the specification information specifying the content, and also transmits the playback instruction to another projector, thus enabling another projector to project the content in response to the playback instruction. This enables easy execution of collaborative projection by a plurality of projectors.

Application Example 9

A display system according to this application example includes a first projector and a second projector connected to each other via communication. The first projector includes: a projection unit which projects content in response to a playback instruction for the content; and a transmitting unit which transmits the playback instruction to the second projector. The second projector includes: a receiving unit which receives the playback instruction from the first projector; and a projection unit which projects the content in response to the playback instruction. The playback instruction includes specification information which specifies the content.

With such a configuration, the projector projects the content in response to the playback instruction including the specification information specifying the content, and also transmits the playback instruction to another projector, thus enabling another projector to project the content in response to the playback instruction. This enables easy execution of collaborative projection by a plurality of projectors.

Application Example 10

In the display system according to the foregoing application example, it is preferable that the first projector includes a storage unit which stores a schedule, and that the playback instruction is generated based on the schedule.

With such a configuration, collaborative projection by a plurality of projectors can be designated based on the stored schedule.

Application Example 11

In the display system according to the foregoing application example, it is preferable that, in the first projector, the storage unit stores group information and that the transmitting unit transmits the playback instruction to the second projector included in the group information.

With such a configuration, the projector based on the stored group information can be instructed to carry out collaborative projection.

Application Example 12

In the display system according to the foregoing application example, the playback instruction may be a combination of a command designating projection of the content and the specification information.

Application Example 13

In the display system according to the foregoing application example, it is preferable that, in the second projector, if the receiving unit receives the playback instruction specifying second content when the projection unit projects first content, the projection unit projects the second content instead of the first content.

With such a configuration, when receiving the playback instruction specifying content, the projector projects the content designated by the playback instruction, instead of different content. This enables the projector to immediately execute collaborative projection with another projector.

Application Example 14

In the display system according to the foregoing application example, it is preferable that, in the second projector, if the receiving unit receives the playback instruction specifying first content when the projection unit projects the first content, the projection unit corrects a first timing when the first content is projected, based on a time difference between the first timing and a second timing when the playback instruction is received.

With such a configuration, a difference in the timing of carrying out collaborative projection with another projector can be properly corrected.

