Fujitsu Corporation

Fujitsu Display Technologies Corporation

Masanori Nakamura

Tsutomu Kai

Katsunori Tanaka

Katsuhiko Kishida

Yoshihisa Taguchi

Hirofumi Miyamoto

Hongyong Zhang

Hiromi Enomoto

Susumu Okazaki

Toshiya Onodera

Hiroyuki Isogai

Tosiya Onodera

Mikio Oshio

A driving circuit of a liquid crystal display device includes driver output lines connected to outputs of a data line driver, m pieces of block selection signal lines for sequentially selecting m pieces of blocks, and data lines for supplying data to a display area. A switch sequentially connects an ith driver output line to ith, i+2jth, . . . , and i+2jx(m&#x2212;1)th data lines in response to signals on the m pieces of block selection signal lines when j is a positive integer smaller than m.

Liquid crystal display device and driving circuit thereof

A display has a display panel of a first aspect ratio and is able to display on the display panel an image of a second aspect ratio whose width element is larger than that of the first aspect ratio. The display has a gate driver, a data driver, and a timing controller. The gate driver sequentially selects gate lines of the display panel. The data driver stores data for one gate line and supplies the data to one of the gate lines selected by the gate driver. The timing controller supplies control signals to the gate and data drivers so that predetermined data is displayed in top and bottom non-image areas of the display panel during a vertical blanking period. The display is capable of displaying images of different sizes.

Display and method of and drive circuit for driving the display

A display device includes a display panel having display pixels arranged in matrix formation. A first driver circuit sequentially supplies image data to vertical lines of the display panel in synchronism with a first clock signal. A second driver circuit sequentially drives horizontal lines in synchronism with a second clock signal. A control circuit controls a drive timing at which the second driver circuit sequentially drives the horizontal lines so that identical image data equal to one horizontal line is supplied, from the first driver circuit in synchronism with the first clock signal, to two consecutive horizontal lines every N horizontal lines (N is an integer) in accordance with an enlargement ratio at which an image is enlarged in a vertical direction and is displayed on the display panel.

Liquid crystal display device and display method of the same

The present invention relates to a display device and a method for identifying a display mode for a display device which receives a synchronous signal and a video signal. The display device measures a frequency or cycle of the synchronous signal, compares the measured frequency or cycle of the synchronous signal with a reference frequency or cycle to identify the display mode, and changes the reference frequency or cycle including a first and second reference value selectively for the step of comparing. According to the present invention, the display mode is stably identified.

Display device with a display mode identification function and a display

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Kawasaki, Japan

Masanori Nakamura