Liquid crystal device, image processing device, image display apparatus with these devices, signal input method, and image processing method

A liquid crystal device having multiple pixels, the liquid crystal device comprising:

• an input terminal that receives a display signal including a predetermined signal used for generating a common signal and multiple pixel signals to be supplied to the multiple pixels, wherein the predetermined signal is embedded into a predetermined period between a group of pixel signals and another group of pixel signals in the display signal, and the common signal is to be commonly supplied to the multiple pixels;
• a common signal line that is commonly connected to the multiple pixels;
• a common signal line driving circuit that generates the common signal in response to the predetermined signal included in the display signal input from the input terminal and supplies the generated common signal to the common signal line,
• wherein the predetermined period is part of a vertical scanning period except an effective vertical scan period, and
• wherein the common signal line driving circuit is a sample/hold circuit that samples the predetermined signal included in the display signal input from the input terminal and outputs the predetermined sampled signal as the common signal.

An image display apparatus, comprising:

• a liquid crystal device having multiple pixels;
• and
• an image processing device that generates a display signal, which is to be input into the liquid crystal device,
• the liquid crystal device comprising:
• an input terminal that receives the display signal including a predetermined signal used for generating a common signal and multiple pixel signals to be supplied to the multiple pixels, wherein the predetermined signal is embedded into a predetermined period between a group of pixel signals and another group of pixel signals in the display signal, and the common signal is to be commonly supplied to the multiple pixels,
• the image processing device comprising:
• a video signal conversion circuit that converts an input video signal and generates the multiple pixel signals, which are to be given to the multiple pixels of the liquid crystal device;
• and
• a display signal generation circuit that combines the multiple pixel signals with a predetermined signal, which is used for generating a common signal to be commonly supplied to the multiple pixels, and thereby generates one display signal.

A liquid crystal device having multiple pixels, the liquid crystal device comprising:

• an input terminal that receives a display signal including a predetermined signal used for generating a common signal and multiple pixel signals to be supplied to the multiple pixels, wherein the predetermined signal is embedded into a predetermined period between a group of pixel signals and another group of pixel signals in the display signal, and the common signal is to be commonly supplied to the multiple pixels;
• a common signal line that is commonly connected to the multiple pixels;
• and
• a common signal line driving circuit that generates the common signal in response to the predetermined signal included in the display signal input from the input terminal and supplies the generated common signal to the common signal line,
• wherein the common signal line driving circuit is a sample/hold circuit that samples the predetermined signal included in the display signal input from the input terminal and outputs the predetermined sampled signal as the common signal.