Socionext Inc.

Panasonic Corporation

Matsushita Electric Industrial Co., Ltd.

Yoshihiro Kishimoto

Yoichiro Miki

Yuji Sekiguchi

Takeru Yamashita

Hiroyuki Kakinuma

Masayuki Tagami

Teruaki Takeuchi

A strobe signal from a memory is delayed through delay circuits of a strobe delay selection section, thus obtaining a plurality of delayed strobe signals. A strobe latch section produces check data in synchronism with each of the delayed strobe signals, and a system latch section latches, with a system clock, check data latched by the strobe latch section. Based on a comparison by an expected value comparison section and a determination by a delay determination section, the optimal strobe signal with the optimal delay is selected from among the delayed strobe signals produced in the strobe delay selection section. Then, data from the memory is delayed through delay circuits in a data delay selection section, thus obtaining a plurality of delayed data, and the optimal data with the optimal delay is selected from among the plurality of delayed data based on the comparison by the expected value comparison section and the determination by the delay determination section.

Method and apparatus for timing adjustment

Data driver modules are connected to a driver controller. In driver-data output clock selection sections and driver data control sections, each equal in number to the data driver modules that are connected to the driver controller, the phase of driver data is adjusted for each data driver module, while the phase of each driver clock is adjusted in driver-clock output clock selection sections and driver clock control sections.

Driver controller for controlling a plurality of data driver modules included in a display panel

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Osaka, Japan

Yoshihiro Kishimoto