US 12,284,320 B2
Display apparatus, display control method for display apparatus, and storage medium
Masaki Miyazawa, Matsumoto (JP); and Hiroyuki Kosuge, Matsumoto (JP)
Assigned to Seiko Epson Corporation, Tokyo (JP)
Filed by SEIKO EPSON CORPORATION, Tokyo (JP)
Filed on May 26, 2022, as Appl. No. 17/804,292.
Claims priority of application No. 2021-089897 (JP), filed on May 28, 2021.
Prior Publication US 2022/0385774 A1, Dec. 1, 2022
Int. Cl. H04N 1/00 (2006.01)
CPC H04N 1/00411 (2013.01) [H04N 1/00037 (2013.01); H04N 1/00076 (2013.01); H04N 1/00909 (2013.01); H04N 1/00832 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A display apparatus comprising:
a display section with a screen, including an input section on the screen for input of an instruction to the display apparatus; and
a controller configured to change display content of the screen and configured to control the display section, wherein
the controller is configured to switch between an on and off states of a cleanup perform mode according to the input to the input section, and the cleanup perform mode disables the input to the input section and enables cleaning of the screen,
at least one of factors indicating a degree of contamination of the screen since previous screen cleanup is a parameter,
the controller is configured to control the display section to display obstacles obstructing display content displayed on the screen, the obstacles encouraging the input for switching to the on state of the cleanup perform mode by accumulating a value of the parameter since the previous screen cleanup and is configured to, in accordance with the accumulated value of the parameter, increase a display density of each obstacle thereby reducing a degree of visibility of the display content displayed on the screen,
the controller is configured to reduce the degree of visibility of the display content when the accumulated value of the parameter exceeds a threshold, and
the controller is configured to obtain a total accumulated value of a plurality of the parameters by using a conversion formula for the plurality of the parameters and is configured to determine whether the total accumulated value exceeds the threshold.