Hitachi, Ltd.

Panasonic Liquid Crystal Display Co., Ltd.

Japan Display Inc.

Hitachi Displays, Ltd.

Yoshirou Mikami

Hajime Akimoto

Shigeyuki Nishitani

Takeo Shiba

Kiyoshige Kinugawa

Toshihiro Sato

Hiroshi Kageyama

The invention provides an image display device that has an especially satisfactory display quality for animated images, and sufficiently suppresses the irregularities of display quality among pixels. The image display device includes a light emitting drive means that drives a light emitting means, based on an analog display signal inputted to the pixels, and a light emitting control switch for controlling a light-on or light-off of the light emitting means on one end of the light emitting drive means in each pixel.

Image display device

In a light emitting display apparatus requiring power supply lines, excellent uniformity in display luminance is provided over a relatively large screen by disposing at least one of input terminals for the power supply lines between input terminals for signal lines.

Image display apparatus

A liquid crystal image display comprising differential amplifiers composed of polycrystalline Si TFTs incorporated in buffer for a signal line driver. The image display includes buffer outputting switches for turning off the outputs of the buffers and signal line shunting switches for shorting the input and output terminals of the buffer. For the first half of one horizontal period, the signal line shunting switches are held off whereas the buffer outputting switches are held on, to feed signal lines with an image signal voltage selected by level select switches through the buffers. For the second half of the horizontal period, the signal line shunting switches are held on whereas the buffer outputting switches are held off, to feed the signal lines directly with the image signal voltage selected by the level select switches, and the signal lines fed with the equal image signal voltages are shorted to prevent the brightness nonuniformity of vertical streaks, as might otherwise be caused because said buffers have different offset voltages.

Image display

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Hitachiota, Japan

Yoshirou Mikami