274results about How to "Deterioration of image quality" patented technology

The image forming apparatus comprises: an ejection head which ejects liquid onto a recording medium to form a desired image on the recording medium; a conveyance device which moves at least one of the recording medium and the ejection head so as to move the recording medium in a conveyance direction relatively to the ejection head; a liquid removal device which performs liquid removal to remove the liquid on the recording medium and is arranged on a downstream side of the ejection head in the conveyance direction; a determination device which determines a state after the liquid removal is performed by the liquid removal device; and a liquid removal control device which implements control to adjust a liquid removal capability of the liquid removal device according to determination results of the determination device.

A pixel circuit able to prevent a spread of the terminal voltages of drive transistors inside a panel and in turn able to reliably prevent deterioration of uniformity, wherein a source of a TFT serving as a drive transistor is connected to an anode of a light emitting element, a drain is connected to a power source potential, a capacitor is connected between a gate and source of the TFT, and a source potential of the TFT is connected to a fixed potential through a TFT serving as a switch transistor and wherein pixel circuit lines are connected by an upper line and bottom line and are arranged in parallel with pixel circuit power source voltage lines so as not to have intersecting parts.

A multi-gate structure is used and a width (d1) of a high concentration impurity region sandwiched by two channel forming regions in a channel length direction is set to be shorter than a width (d2) of low concentration impurity regions in the channel length direction. Thus, a resistance of the entire semiconductor layer of a TFT which is in an on state is reduced to increase an on current. In addition, a carrier life time due to photoexcitation produced in the high concentration impurity region can be shortened to reduce light sensitivity.

This invention provides an image processing apparatus which simplifies the circuit arrangement required for edge emphasis correction. For this purpose, the apparatus has a first color conversion unit (102) for color-separating input image data into lightness data and chromaticity data, a delay unit (103) for delaying the separated lightness data by N lines, and delaying the chromaticity data by N / 2 lines, an image edge amount extraction unit (113) for extracting an image edge portion from the lightness data, a saturation amount extraction unit (114) for extracting the saturation component from the chromaticity data, and an image edge emphasis amount distribution unit (116) for distributing the emphasis amount of the edge portion to an edge emphasis unit (104) so that the distribution ratio for chromaticity correction is higher than that for lightness correction when the saturation component extracted by the saturation extraction unit (114) is large, and the distribution ratio for lightness correction is higher than that for chromaticity correction when the saturation component extracted by the saturation extraction unit (114) is small.