Sharp Kabushiki Kaisha Corporation

Toshiyuki Makii

Hiroshi Nakanishi

Masahiro Adachi

Takeshi Masuda

Nobuyoshi Nagashima

Akihisa Iwamoto

Osamu Miyazaki

Yasukazu Tomita

Masuji Tanimura

Masami Inoue

Nobuyuki Hashimoto

A display device includes: a plurality of first pixel sections; a plurality of second pixel sections; first image lines disposed in a first pixel area; a plurality of second image lines disposed in a second pixel area; short-circuit lines connected to the second image lines, the short-circuit lines short-circuiting the second image lines; a first pixel drive unit driving the first pixel sections; a plurality of second pixel drive units driving the second pixel sections arranged side by side along a row direction by time division while the first pixel drive unit is driving the first pixel sections; and an image signal supply section supplying first image signals to the first image lines in synchronism with the first pixel drive unit driving the first pixel sections and supplying second image signals to the short-circuit lines by time division in synchronism with the second pixel drive units driving the second pixel sections arranged side by side along the row direction.

Display device

A projection image display device includes, a light source, an image display panel having a number of pixels and a vertical scanning function, an optical system for dividing light from the light source into a plurality of lights of different wave ranges and directing and overlapping the divided plural lights onto an area from different directions, a light-collector for collecting each of the plural divided lights directed onto the area by the optical system into apertures of pixels of the image display panel corresponding to the wave range of the light, a projector for projecting an image displayed on the image display panel, and a color-changer for mutually changing, at every vertical scanning of the image display panel, the directions in which the optical system directs the plural divided lights of the different wave ranges, so as to mutually change the wave ranges of light directed to the pixels of the image display panel sequentially. The image display panel displays an image with each of the pixels displaying a color of the wave range of light directed to the pixel at every change by the color-changer.

Projection image display device

Laser beam irradiation spots are formed in a delta arrangement on a defective pixel present in a liquid crystal panel so that liquid crystal molecules in areas surrounding the irradiation spots are oriented vertically. Alternatively, an aligning film in a defective pixel is irradiated with a laser to form minute grooves in a different direction than the rubbing direction of the aligning film, whereby the orientation of the liquid crystal is changed so that the liquid crystal between the aligning films is no longer twisted. Thereby, a defective pixel present in a liquid crystal display panel can be made inconspicuous, and as a result, degradation of the display quality of the liquid crystal display device after correction can be prevented.

Method for the correction of a defect in a liquid crystal display device

Growing community of inventors

Kitakatsuragi-gun, Japan

Toshiyuki Makii