Matsushita Electric Industrial Co., Ltd.

Ryota Hata

Jun Ikeda

Shuichi Ojima

Tsuyoshi Hirashima

Shinya Kiuchi

Tadashi Kayada

Kousuke Kubota

Picture quality on a display screen is corrected in accordance with a change either in image information or in the light state. The electronic apparatus includes a display panel, a lighting means for lighting the display panel, a parameter adjusting means for adjusting a parameter participating in picture quality so as to conform the light state while using variations in the light state of the lighting means as a trigger, a signal correcting means for inputting a display signal and correcting the input display signal in accordance with the adjusted parameter, and a driving means for driving the display panel on the basis of the corrected display signal. The light state is controlled according to the content of a file containing the information to be displayed.

Electronic apparatus and recording medium therefor

A pseudo-tone processing means color-reduces each RGB component of incoming display data using pseudo-tone processing. A frame memory stores the color-reduced display data before feeding it to a display through a drive means. Color reduction is performed so that the tone number of each RGB component after color reduction is G component&#x3e;R component&#x3e;B component. Color reduction is unequally performed in a manner which reflects contributions of each RGB component to brightness.

Display unit and display method

Growing community of inventors

Iizuka, Japan

Ryota Hata