Abstract: Image display apparatus (102) comprising projector means (112), a light source (104), at least one primary modulator (106) for modulating light, an auxiliary modulator (110) for modulating the light modulated by the primary modulator (106), optical means (108) for relaying the light modulated by the primary modulator (106) to the auxiliary modulator (110), and control means (118, 120) for controlling the primary modulator (106) and the auxiliary modulator (110), characterized in that: the primary modulator (106) comprises a first array of pixels, and the auxiliary modulator (110) comprises a second array of pixels; each pixel in the first array of pixels of the primary modulator (106) is controlled by the control means (118, 120) as a function of video input data for each pixel in the first array of pixels; and each pixel in the second array of pixels of the auxiliary modulator (110) is controlled by control means (118, 120) as a function of video input data for each equivalent pixel in the second array of pi

Abstract: Image display apparatus (102) comprising projector means (112), a light source (104), at least one primary modulator (106) for modulating light, an auxiliary modulator (110) for modulating the light modulated by the primary modulator (106), optical means (108) for relaying the light modulated by the primary modulator (106) to the auxiliary modulator (110), and control means (118, 120) for controlling the primary modulator (106) and the auxiliary modulator (110), characterised in that: the primary modulator (106) comprises a first array of pixels, and the auxiliary modulator (110) comprises a second array of pixels; each pixel in the first array of pixels of the primary modulator (106) is controlled by the control means (118, 120) as a function of video input data for each pixel in the first array of pixels; and each pixel in the second array of pixels of the auxiliary modulator (110) is controlled by control means (118, 120) as a function of video input data for each equivalent pixel in the second array of pi

Abstract: A method for reducing motion blur in a displayed image, comprising utilising at least one first panel (1) and at least one second panel (2), and in which a temporal phase shift is applied between the drive to the first and the second panels (1, 2) such that the bright duration of a picture element is reduced only when it changes in demand value from one video frame to the next. Apparatus for reducing the motion blur in a displayed image is also disclosed, the apparatus comprising primary image modulation means comprising at least one first panel (1), secondary image modulation means comprising at least one second panel (2), a light source (3), transmitting means (4) for transmitting the image from the first panel (1) to the second panel (2), viewing means (5) for viewing the net image transmission through both the first panel (1) and the second panel (2), and video data processing means (6) for providing a relative delay between the drive to the first panel (1) and the second panel (2).

Abstract: Image display apparatus (10) comprising projector means, a first light source, at least one primary modulator (12) for modulating light from the first light source, a second light source, optical means (14, 18) for combining light from the second light source with the modulated light from the at least one primary modulator (12), and an auxiliary modulator (16) for modulating the combined light from the second light source and the modulated light from the at least one primary modulator (12).

Abstract: Image display apparatus (2) which combines low and high resolution image data in a common data format prior to display.

Abstract: Image display apparatus comprising projector means, optical means for splitting incident light, a first modulator for modulating red light, a second modulator for modulating green light, a third modulator for modulating blue light, optical means for recombining the combined modulated red light, green light and blue light, and control means for controlling the operation of the first, second, third and fourth modulators such that the dynamic range of the image display apparatus is enhanced.

Abstract: Apparatus for use in video conferencing, which apparatus comprises at least one video camera (50) for providing a video image signal of at least one person taking part in a video conference, at least one display means (46) on which the video image signal from a remote location is displayed, and at least one part-transmissive curved mirror (48) which enables the person to view the display means (46) with the video camera (50) being positioned on a side of the part-transmissive curved mirror (48) away from the person and at substantially eye level of the person, whereby persons using the apparatus for a video conference arc able to maintain eye contact with each other.

Abstract: Image display apparatus comprising projector means, optical means for splitting incident light, a first modulator for modulating red light, a second modulator for modulating green light, a third modulator for modulating blue light, optical means for recombining the combined modulated red light, green light and blue light, and control means for controlling the operation of the first, second, third and fourth modulators such that the dynamic range of the image display apparatus is enhanced.

Abstract: Display apparatus (50) comprising a front projection screen (60), at least one projector (54) which is for providing a display on the screen (60) and which is positioned outside an enclosed display volume, the screen (60) being optimised to preferentially set the image distance in different regions when viewed by an observer (58) via a collimating mirror (62).

Abstract: Apparatus comprising framestore demultiplexing means (32) for creating a specific area of interest which has a higher image update or frame rate than a surrounding area (FIG. 7). The apparatus may be used in simulators such as flight simulators, air traffic control simulators, and driving simulators.

Abstract: Image display apparatus (10) for improving the display of moving images, which image display apparatus comprises control means (16) for eliminating or reducing smear caused primarily by a zero-order hold characteristic of a light-valve image display device (10), the control means (16) being such that it eliminates or reduces the zero-order hold characteristic by superimposing a decay characteristic onto light incident upon the light-valve image display device (10), and the control means (10) being such that it superimposes the decay characteristic by reducing the pixel intensity before the pixel intensity is updated in a next frame.

Abstract: Image display apparatus (2) which combines low and high resolution image data in a common data format prior to display.

Abstract: An image projection display system for use in large field-of-view presentations, which image projection display system comprises a fold mirror arrangement and a plurality of projection devices, the image projection display system being such that light beams from the projection devices are optically combined by the fold mirror arrangement so as to appear to be projected from essentially a common equivalent eye point, whereby the displayed information of adjacent projected displays is able to be correctly aligned with respect to a design eye point without the need to apply distortion to the images.

Abstract: Image display apparatus comprising projector means, a first modulator and a second modulator, the first and the second modulators being such as to modulate picture elements in an image whereby finite minimum image brightness above true black is reduced, and whereby the contrast range of the projected image is extended.