Control device and non-transitory computer readable medium
A control device includes a processor configured to grasp a status of a user around a display device and lower brightness of a display screen of the display device or reduce a change in brightness of the display screen per unit time in a case where the grasped status of the user is a specific status.
1. A control device comprising
a processor configured to:
grasp a status of a user around a display device;
lower brightness of a display screen of the display device or reduce a change in brightness of the display screen per unit time in a case where the grasped status of the user is a specific status; and
increase the brightness of the display screen or increase the change in brightness of the display screen per unit time in a case where the user takes a specific action after the processor lowers the brightness of the display screen or reduces the change in brightness of the display screen per unit time; wherein
the specific action includes a case where the user stands up from a chair placed around the display device.
2. The control device according to claim 1 , wherein
the processor lowers the brightness of the display screen or reduces the change in brightness of the display screen per unit time in a case where the user takes another specific action around the display device.
3. The control device according to claim 2 , wherein
the processor lowers the brightness of the display screen or reduces the change in brightness of the display screen per unit time in a case where the user sits down on a chair around the display device.
4. The control device according to claim 2 , wherein
the processor lowers the brightness of the display screen or reduces the change in brightness of the display screen per unit time in a case where a user starts specific work around the display device.
5. The control device according to claim 2 , wherein
the processor lowers the brightness of the display screen or reduces the change in brightness of the display screen per unit time in a case where the user around the display device turns away from the display screen.
6. The control device according to claim 1 , wherein
the processor lowers the brightness of the display screen or reduces the change in brightness of the display screen per unit time in a case where a distance between the display device and the user becomes smaller than a predetermined distance.
7. The control device according to claim 6 , wherein
the processor lowers the brightness of the display screen or reduces the change in brightness of the display screen per unit time in a case where the distance between the display device and the user is smaller than the predetermined distance continuously for more than a predetermined period.
8. The control device according to claim 6 , wherein
the processor increases the brightness of the display screen or increases the change in brightness of the display screen per unit time in a case where the distance between the display device and the user becomes larger than the predetermined distance.
9. The control device according to claim 1 , wherein
the processor lowers the brightness of the display screen by changing content displayed on the display screen of the display device.
10. The control device according to claim 9 , wherein
the processor lowers the brightness of the display screen by changing content displayed on the display screen to content containing a larger number of images of low brightness.
11. The control device according to claim 1 , wherein
the processor lowers the brightness of the display screen by turning off a light source provided in the display device or lowering output of the light source.
12. The control device according to claim 1 , wherein
the processor reduces the change in brightness of the display screen per unit time by switching a target displayed on the display screen from a moving image to a still image.
13. The control device according to claim 1 , wherein
the specific action includes a case where the user touches the display device.
14. The control device according to claim 1 , wherein
the specific action includes a case where the user exits a room in which the display device is provided.
15. The control device according to claim 1 , wherein
the specific action includes a case where the user faces the display screen.
16. A non-transitory computer readable medium storing a program causing a computer to execute a process comprising:
grasping a status of a user around a display device,
lowering brightness of a display screen of the display device or reducing a change in brightness of the display screen per unit time in a case where the grasped status of the user is a specific status; and
increasing the brightness of the display screen or increasing the change in brightness of the display screen per unit time in a case where the user takes a specific action after the lowering the brightness of the display screen or reducing the change in brightness of the display screen per unit time; wherein
the specific action includes a case where the user stands up from a chair placed around the display device.
17. A control device comprising:
means for grasping a status of a user around a display device,
means for lowering brightness of a display screen of the display device or reducing a change in brightness of the display screen per unit time in a case where the grasped status of the user is a specific status; and
means for increasing the brightness of the display screen or increasing the change in brightness of the display screen per unit time in a case where the user takes a specific action after the lowering the brightness of the display screen or reducing the change in brightness of the display screen per unit time; wherein
the specific action includes a case where the user stands up from a chair placed around the display device.