Video display apparatus and method
AssigneeOlympus Corporation
InventorsRyohei SUGIHARA, Yoichi Iba
Life of this patent
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Abstract
A video display apparatus displays videos corresponding to a plurality of directions of observation respectively and includes a display device. A control unit controls a scan timing so that a sum of a video scanning period from an upper end to a lower end of the display device concerning one video input into the display device and a response period in the lower end of the display device is smaller than a field period of the video. The control unit allows an illumination system to emit light between the end of the response period of the lower end and the start of scanning of the next video in the upper end of the display device.
Claims12
A video display apparatus capable of displaying videos corresponding to a plurality of directions of observation, respectively, the apparatus comprising:
- a display device;
- a display device driving circuit which drives the display device;
- an illumination system which switches an illuminating direction of the display device;
- and
- a control unit which controls the display device driving circuit to alternately input different videos into the display device and which switches the illuminating direction of the illumination system in synchronization with the input of each video to thereby display in the display device the different videos in a time sharing manner,
- wherein the control unit controls a scan timing so that a sum of a video scanning period from an upper end to a lower end of the display device concerning one video input into the display device and a response period in the lower end of the display device is smaller than a field period of the video, and
- wherein the control unit allows the illumination system to emit light between the end of the response period of the lower end and the start of scanning of the next video in the upper end of the display device.
A video display apparatus capable of displaying videos corresponding to a plurality of directions of observation, respectively, the apparatus comprising:
- a display device;
- a display device driving circuit which drives the display device;
- an illumination system which switches an illuminating direction of the display device;
- and
- a control unit which controls the display device driving circuit to alternately input different videos into the display device and which switches the illuminating direction of the illumination system in synchronization with the input of each video to thereby display in the display device the different videos in a time sharing manner,
- wherein the control unit inserts, between one video and the next video to be input into the display device, a reset signal to reset the one video,
- wherein the control unit allows the illumination system to start light emission at an earliest timing that is a timing when a transmittance of a lower end of the display device is brought into a shield state in response to the reset signal from a state where the lower end of the display device displays one video, and
- wherein the control unit allows the illumination system to stop the light emission at a latest timing that is a timing when display of the next video is started in an upper end of the display device.
A video display apparatus capable of displaying videos corresponding to a plurality of directions of observation, respectively, the apparatus comprising:
- a display device;
- a display device driving circuit which drives the display device;
- an illumination system which switches an illuminating direction of the display device;
- and
- a control unit which controls the display device driving circuit to alternately input different videos into the display device and which switches the illuminating direction of the illumination system in synchronization with the input of each video to thereby display in the display device the different videos in a time sharing manner,
- wherein the control unit inserts, between one video and the next video to be input into the display device, a reset signal to reset the one video,
- wherein the control unit allows the illumination system to start light emission between a time when a transmittance of the display device is brought into a shield state in response to the reset signal from a state where the lower end of the display device displays one video and a time when display of the next video is started in the lower end of the display device, and
- wherein the control unit allows the illumination system to stop the light emission between the time when the transmittance of the display device is brought into the shield state in response to the reset signal from a state where an upper end of the display device displays the next video and a time when display of the further next video is started in the upper end of the display device.
A video display method which displays videos corresponding to a plurality of directions of observation, respectively, by use of a video display apparatus comprising a display device, a display device driving circuit which drives the display device, an illumination system which switches an illuminating direction of the display device, and a control unit which controls the display device driving circuit to alternately input different videos into the display device and which switches the illuminating direction of the illumination system in synchronization with the input of each video to thereby display in the display device the different videos in a time sharing manner, the method comprising:
- controlling a scan timing so that a sum of a video scanning period from an upper end to a lower end of the display device concerning one video input into the display device and a response period in the lower end of the display device is smaller than a field period of the video;
- and
- allowing the illumination system to start light emission between the end of the response period of the lower end and the start of scanning of the next video in the upper end of the display device.
A video display method which displays videos corresponding to a plurality of directions of observation, respectively, by use of a video display apparatus comprising a display device, a display device driving circuit which drives the display device, an illumination system which switches an illuminating direction of the display device, and a control unit which controls the display device driving circuit to alternately input different videos into the display device and which switches the illuminating direction of the illumination system in synchronization with the input of each video to thereby display in the display device the different videos in a time sharing manner, the method comprising:
- inserting, between one video and the next video to be input into the display device, a reset signal to reset the one video;
- allowing the illumination system to start light emission at the earliest timing that is a timing when a transmittance of a lower end of the display device is brought into a shield state in response to the reset signal from a state where the lower end of the display device displays one video;
- and
- allowing the illumination system to stop the light emission at the latest timing that is a timing when display of the next video is started in an upper end of the display device.
A video display method which displays videos corresponding to a plurality of directions of observation, respectively, by use of a video display apparatus comprising a display device, a display device driving circuit which drives the display device, an illumination system which switches an illuminating direction of the display device, and a control unit which controls the display device driving circuit to alternately input different videos into the display device and which switches the illuminating direction of the illumination system in synchronization with the input of each video to thereby display in the display device the different videos in a time sharing manner, the method comprising:
- inserting, between one video and the next video to be input into the display device, a reset signal to reset the one video;
- allowing the illumination system to start light emission between a time when a transmittance of the display device is brought into a shield state in response to the reset signal from a state where the lower end of the display device displays one video and a time when display of the next video is started in the lower end of the display device;
- and
- allowing the illumination system to stop the light emission between the time when the transmittance of the display device is brought into the shield state in response to the reset signal from a state where an upper end of the display device displays the next video and a time when display of the further next video is started in the upper end of the display device.
Dependencies are inferred from the claim text.