摘要:
A projection display uses a light modulating device to modulate, in accordance with image data, light radiated from a light source, project the modulated light onto a screen, and display an image. The projection display separates a unit of time configuring the image data into an effective light time when the light modulating device can express the light as an image on the screen and an ineffective light time when the light modulating device cannot express the light as an image on the screen. The projection display increases the power supplied to the light source during the effective light time over the power supplied to the light source during the ineffective light time.
摘要:
A projection display uses a light modulating device to modulate, in accordance with image data, light radiated from a light source, project the modulated light onto a screen, and display an image. The projection display separates a unit of time configuring the image data into an effective light time when the light modulating device can express the light as an image on the screen and an ineffective light time when the light modulating device cannot express the light as an image on the screen. The projection display increases the power supplied to the light source during the effective light time over the power supplied to the light source during the ineffective light time.
摘要:
The object of the present invention is to provide an image display apparatus, an image processing apparatus, and an image display method that are able to display images without motion blur without increasing the transmitted amount of image signal. An image display apparatus of the invention comprises an image reception unit that receives an image signal; a gray-level correction unit that corrects image signals each corresponding to sub-frames consisting of a plurality of pixel groups split from the received mage signal, using respective grayscale characteristics different from sub-frame to sub-frame; and an image display unit that displays the frame image by successively displaying the sub-frame images each having been gray-level-corrected.
摘要:
An image signal representing consecutive video frames is resampled, using different sampling phases so that different subsets of pixels are taken from each frame in a consecutive set of frames. The resulting set of resampled frames is combined into a single frame and transferred to an image display unit that divides the single frame into subframes and displays the subframes sequentially with different pixel shifts. Each pixel in each subframe is displayed at its correct spatial and temporal position. Although the resampling process greatly reduces the pixel data transfer rate, the image display unit can reproduce still images without loss of definition and moving images without motion blur.
摘要:
The object of the present invention is to provide an image display apparatus, an image processing apparatus, and an image display method that are able to display images without motion blur without increasing the transmitted amount of image signal. An image display apparatus of the invention comprises an image reception unit that receives an image signal; a gray-level correction unit that corrects image signals each corresponding to sub-frames consisting of a plurality of pixel groups split from the received mage signal, using respective grayscale characteristics different from sub-frame to sub-frame; and an image display unit that displays the frame image by successively displaying the sub-frame images each having been gray-level-corrected.
摘要:
A planar light source device includes a first light source for emitting a first light ray having a punctate spatial luminance distribution; a second light source for emitting a second light ray; a first spatial luminance distribution conversion portion for changing the first light ray to a linear spatial luminance distribution; a second spatial luminance distribution conversion portion for changing a spatial luminance distribution of the first and second light rays to a planar spatial luminance distribution; wherein the first light ray is a laser light; the second light ray has a divergence angle larger than the divergence angle of the first light ray when the first light ray is emitted from the first light source; and a slow-axis direction of the first light ray entering the second spatial luminance distribution conversion portion is parallel to an outgoing direction of the planar light.
摘要:
A planar light source device includes a first light source for emitting a first light ray having a punctate spatial luminance distribution; a second light source for emitting a second light ray; a first spatial luminance distribution conversion portion for changing the first light ray to a linear spatial luminance distribution; a second spatial luminance distribution conversion portion for changing a spatial luminance distribution of the first and second light rays to a planar spatial luminance distribution; wherein the first light ray is a laser light; the second light ray has a divergence angle larger than the divergence angle of the first light ray when the first light ray is emitted from the first light source; and a slow-axis direction of the first light ray entering the second spatial luminance distribution conversion portion is parallel to an outgoing direction of the planar light.
摘要:
The present invention relates to a technique for driving a surface discharge type plasma display panel, and more particularly, it is an object of the present invention to freely perform setting without increasing a rating required for an IC having an address driver when a high voltage is to be output from an address electrode for a priming discharge period and a sustain discharge period. In order to attain the above-mentioned object, if the same voltage is simultaneously output to all address electrodes switches are turned off and on in a circuit respectively and a cathode of a diode and an anode of a diode are conducted. Then, the switches are forcedly turned off and on, respectively. In a circuit switches are turned on and off respectively and a voltage Va2 is substantially applied to all the address electrodes through the diode.
摘要:
An image encoding device includes a dynamic range generator for outputting dynamic range data Dd1 of block image data Dc1, an average value generator for outputting average value data De1 of the block image data Dc1, a number-of-pixel reducing unit 20 for decreasing number of pixels of the block image data by reduction-number of pixels to generate reduced-number-of-pixel block image data Dc1′, an encoding parameter generator 18 for generating encoding parameter pa1 specifying a quantization bit rate and the reduction-number of pixels in accordance with the dynamic range data Dd1, a quantization threshold generator 19 for generating a quantization threshold value tb1, and an image data quantizer 21 for generating quantized image data Df1 from the reduced-number-of-pixel block image data Dc1′ with use of the quantization threshold value tb1.
摘要:
A video display apparatus generates luminance information for individual frames of a video signal from histograms of the luminance component of the video signal, and classifies the content of the video signal on the basis of this information. Color saturation information is also generated from color saturation histograms, and scene changes are detected. Video correction parameters and display control parameters are derived from the content classification and color saturation information. The video signal is corrected according to the video correction parameters, and displayed according to the display control parameters. Display characteristics suitable for the video content are thereby obtained. The parameters are changed when a scene change is detected, so that the viewer is not disturbed by the change in video display characteristics.