Display control device and display control method

摘要

A display control device includes a determining portion determining a frame rate in displaying a frame image on a display portion as a determined frame rate; and a converter converting a present frame rate into the determined frame rate when the determined frame rate is different from the present frame rate. The determining portion determines, based on information about an OSD image, whether the determined frame rate is set to a frame rate identical to or higher than the present frame rate, and when determining that the determined frame rate is set to the frame rate higher than the present frame rate, determines the frame rate as the determined frame rate to display the frame image at the determined frame rate starting from a frame image which is K frames after a currently displayed frame image, where K is an integer not less than 1 and not more than 10.

主权项

1. A display control device which controls display of a frame image on a display portion which displays the frame image, the frame image including an input image based on an input image signal and an OSD image for on-screen display, the display control device comprising:
a processor configured to function at least as: a determining portion which is electrically connected to outside of the display control device by a signal line, to which the input image signal and an OSD image signal representing the OSD image are input via the signal line, and which is configured to determine a frame rate in displaying the frame image on the display portion as a determined frame rate; and a converter which is electrically connected to the determining portion and the display portion, to which the input image signal and the OSD image signal are input, and which is configured to convert a present frame rate into the determined frame rate when the determined frame rate is different from the present frame rate, wherein the determining portion is configured to:
acquire information about the OSD image;determine whether the determined frame rate is set to a frame rate identical to the present frame rate or a frame rate higher than the present frame rate, based on the acquired information about the OSD image; andwhen determiningthat the determined frame rate is set to the frame rate higher than the present frame rate, determine the frame rate as the determined frame rate to display the frame image on the display portion at the determined frame rate starting from a frame image which is K frames after a frame image currently displayed on the display portion, where K is an integer not less than 1 and not more than 10, the information about the OSD image includes information about an OSD frame rate which is a frame rate in displaying the OSD image, and when the information about the OSD image includes information indicating that the OSD frame rate is higher than the present frame rate, the determining portion is configured to determine to set the determined frame rate to a frame rate which is N-time as great as the OSD frame rate, where N is an integer not less than 1.