Method and device for displaying image
AssigneeFujitsu Limited
InventorYasunobu Hashimoto
Life of this patent
Estimating the term…
Abstract
A method for displaying an image is provided in which an optimal lighting pattern is selected so as to reduce pseudo contours and flickers. In an image display for reproducing halftones by a subframe technique, a frame is converted into plural subframes. For each of pixels of a display screen, the lighting pattern that is a combination of on and off of the subframes are determined in accordance with a frame data value of the noted pixel, a lighting pattern of the noted pixel in the past frame and the lighting pattern determined for the peripheral pixel located in the vicinity of the noted pixel and having the same display color as the noted pixel.
Claims10
A method for displaying an image in which a halftone is reproduced by a subframe technique of converting a frame into a plurality of subframes, the method comprising the step of determining a lighting pattern that is a combination of on and off of the subframes for each of pixels of a display screen in accordance with a frame data value of a noted pixel, a lighting pattern of the noted pixel in the past frame and a lighting pattern determined for a peripheral pixel that is located in the vicinity of the noted pixel and has the same display color as the noted pixel.
An image display device that can reproduce a halftone by a subframe technique in which a frame is converted into plural subframes, the device comprising:
- a memory having a capacity of at least one frame for memorizing lighting pattern data for determining a selection of on or off of pixels of a display screen;
- and
- a lighting pattern determining circuit for receiving input of frame data of the n-th frame, receiving input of lighting pattern data of the noted pixel in the (n−1)th frame and the lighting pattern data of the n-th frame determined for a peripheral pixel that is located in the vicinity of the noted pixel and has the same display color as the noted pixel and for outputting data that is associated with a combination of input data values in advance as the lighting pattern data of the noted pixel in the n-th frame.
Dependencies are inferred from the claim text.