Abstract: A projection video display that projects video image suppresses deterioration of its quality which is attributed to a change in an optical path of the video image. A video signal generator performs control such that a second subframe in an N-th frame in a left-eye image is displayed on DMDs and then a second subframe in an N-th frame in a right-eye image is displayed on the DMDs. Furthermore, the video signal generator performs control such that a displayed location is not changed on a screen and the same types of subframes are displayed at the time when frames are switched.

Abstract: A projection video display that projects video image suppresses deterioration of its quality which is attributed to a change in an optical path of the video image. A video signal generator performs control such that a second subframe in an N-th frame in a left-eye image is displayed on DMDs and then a second subframe in an N-th frame in a right-eye image is displayed on the DMDs. Furthermore, the video signal generator performs control such that a displayed location is not changed on a screen and the same types of subframes are displayed at the time when frames are switched.

Abstract: A projection type video display device is provided, which is capable of displaying a plurality of kinds of input videos with different aspect ratios without requiring cumbersome adjustment operations.

Abstract: An image display device includes: a display part 4 that displays a video image based on an input signal; a video image adjusting part 33 for adjusting a parameter of the video image; and a region selecting part 31 for selecting a region in the video image, with respect to which an adjustment of the parameter is performed. The display part is capable of composing, based a video image in the selected region, a first video image 31a before the adjustment of the parameter and a second video image 31b to be used for the adjustment, displaying the first video image and the second video image above and below each other or side by side, and displaying either of the first video image and the second video image upside down or in a mirror-reversed manner.

Abstract: A projection type video display device is provided, which is capable of displaying a plurality of kinds of input videos with different aspect ratios without requiring cumbersome adjustment operations.

Abstract: An image display apparatus includes: an image display unit for forming and displaying an optical image; an external-equipment-link unit capable of sending/receiving a control signal to/from external equipment; and a control unit for controlling operations of the image display unit and the external-equipment-link unit. The external-equipment-link unit includes at least one control signal output circuit and at least one control signal input circuit, the control signal input circuit detects an input control signal inputted from the external equipment and supplies the input control signal to the control unit. The control unit controls the control signal output circuit to output an external equipment control signal to the external equipment in response to the image display apparatus being in a predetermined operation state, and the control unit controls operations of the image display apparatus based on the input control signal supplied from the control signal input circuit.

Abstract: An image display device includes: a display part 4 that displays a video image based on an input signal; a video image adjusting part 33 for adjusting a parameter of the video image; and a region selecting part 31 for selecting a region in the video image, with respect to which an adjustment of the parameter is performed. The display part is capable of composing, based a video image in the selected region, a first video image 31a before the adjustment of the parameter and a second video image 31b to be used for the adjustment, displaying the first video image and the second video image above and below each other or side by side, and displaying either of the first video image and the second video image upside down or in a mirror-reversed manner.

Abstract: The present invention includes a film or video image pickup signal recording/reproduction system having an image pickup apparatus outputting an image pickup signal, a recording apparatus recording the image pickup signal, a reproduction apparatus reproducing the recorded signal, a characteristic conversion apparatus switching the characteristic of the reproduced signal, and a display apparatus displaying the signal output from the characteristic conversion apparatus. The image pickup apparatus has two kinds of gamma curve characteristics. The gamma curve characteristic data is recorded by the recording apparatus and extracted by the reproduction apparatus. The gamma curve characteristic of a reproduction image is switched by the characteristic conversion apparatus depending on the data. The image is output on a display apparatus.

Abstract: The present invention includes a film or video image pickup signal recording/reproduction system having an image pickup apparatus outputting an image pickup signal, a recording apparatus recording the image pickup signal, a reproduction apparatus reproducing the recorded signal, a characteristic conversion apparatus switching the characteristic of the reproduced signal, and a display apparatus displaying the signal output from the characteristic conversion apparatus. The image pickup apparatus has two kinds of gamma curve characteristics. The gamma curve characteristic data is recorded by the recording apparatus and extracted by the reproduction apparatus. The gamma curve characteristic of a reproduction image is switched by the characteristic conversion apparatus depending on the data. The image is output on a display apparatus.

Abstract: The image size reducing method of the invention, and the image size reducing apparatus using the same, comprising a counter for counting vertical synchronizing signals of entered image signal, a gate signal generating circuit for generating a gate signal from the count value of this counter, reduction rate of image in vertical direction, vertical synchronizing signal and horizontal synchronizing signal, and a gate circuit for decimating horizontal synchronizing signal and either one or both of enable signal and clock signal by using the gate signal, and the image display device driven by signals combined the decimated enable signal, the decimated clock signal and the decimated horizontal scanning line and displaying the reduced image in vertical size.