Renesas Technology Corp.

Hitachi Ulsi Systems Co., Ltd.

Other

Renesas Electronics Corporation

Akihisa Aoyama

Takashi Akioka

Kinya Mitsumoto

Masao Shinozaki

Hiroki Ueno

Yasuyuki Kudo

Naoki Takada

Goro Sakamaki

Akihito Akai

Yoshiki Kurokawa

Yukari Katayama

Hiroki Awakura

Goki Toshima

In a display device and a display driver, when a grayscale of a display image is equal to or lower than a specific grayscale value obtained from a histogram of the display image, a display grayscale is extended with a linear function. On the other hand, when a grayscale of a display image is equal to or higher than the specific grayscale value, histogram equalization of a part higher than the specific grayscale value is performed, and the display grayscale is extended with a non-linear function obtained from the histogram equalization.

Display device, display driver and image display method

Parasitic capacitances formed between bit lines to which signals are to be read out of memory cells and a signal transmission line arranged above them are to be reduced. Second complementary global bit lines for transmitting data read out of memory cells MC via complementary bit lines are arranged above a memory cell array. Each second global bit line is so arranged that a triangle having as its vertexes the center of the section of one of the complementary bit lines, that of the section of the other and that of the section of the second global bit line arranged directly above these complementary bit lines be an isosceles triangle.

Semiconductor memory device

Growing community of inventors

Kokubunji, Japan

Akihisa Aoyama