Liquid crystal display apparatus

A liquid crystal display apparatus comprising:

• a liquid crystal layer held between a pair of transparent substrates, at least one thereof being transparent;
• a plurality of line wirings and a plurality of column wirings disposed on one of the substrates;
• and
• first active elements in intersections of the pluralities of line and column wirings,
• wherein an image is displayed by writing image data in pixels disposed in a matrix form through the first active elements, preset writing is executed on a full surface of a screen in synchronization with a frame signal, the image is made visible by intermittently lighting an illuminator, one frame period is divided into a first writing period, a first holding period, a second writing period, a second holding period, and a reset writing period, the liquid crystal display apparatus is driven in this sequence, voltage polarities of the first and second writing periods are reversed, and the second writing period is set to be about ½ of the first writing period.

A liquid crystal display apparatus comprising:

• a liquid crystal layer held between a pair of substrates, at least one thereof being transparent;
• a plurality of line wirings and a plurality of column wirings disposed on one of the substrates;
• and
• first active elements in intersections of the pluralities of line and column wirings,
• wherein an image is displayed by writing image data in pixels disposed in a matrix form through the first active elements, the image is made visible by intermittently lighting an illuminator, scanning is started from one line or a pair of adjacent lines, one or more lines being present in a screen, and the scanning is carried out in both upper and lower directions with the one line or the pair of adjacent lines set as a reference.

A liquid crystal display apparatus comprising:

• a liquid crystal layer held between a pair of substrates, at least one thereof being transparent;
• a plurality of line wirings and a plurality of column wirings disposed on one of the substrates;
• and
• first active elements in intersections of the pluralities of line and column wirings,
• wherein an image is displayed by writing image data in pixels disposed in a matrix form through the first active elements, preset writing is executed on a full surface of a screen in synchronization with a frame signal, the image is made visible by intermittently lighting an illuminator, scanning is started from one line or a pair of adjacent lines, one or more lines being present in a screen, and the scanning is carried out in both upper and lower directions with the one line or the pair of adjacent lines set as a reference.

A liquid crystal display apparatus comprising:

• a liquid crystal layer held between a pair of substrates, at least one thereof being transparent;
• a plurality of line wirings and a plurality of column wirings disposed on one of the substrates;
• and
• first active elements in intersections of the pluralities of line and column wirings,
• wherein an image is displayed by writing image data in pixels disposed in a matrix form through the first active elements, the image is made visible by intermittently lighting an illuminator, division is made into the number 2n of subframes in one frame period, the same image data is subjected to write-scanning while a writing polarity is reversed for each of the subframes, and the illuminator is intermittently lit in a predetermined period of a latter half of one frame.

A liquid crystal display apparatus comprising:

• a liquid crystal layer held between a pair of substrates, at least one thereof being transparent;
• a plurality of line wirings, a plurality of column wirings and a common wiring disposed on one of the substrates;
• first active elements in intersections of the pluralities of line and column wirings,
• wherein an image is displayed by writing image data in pixels disposed in a matrix form through the active elements, a pixel electrode and a common electrode are provided in the pixel, one end of the first active element is connected to the pixel electrode, the other end to the column wiring, second active elements are disposed in the pixel, one output there of is connected to the common electrode, the other output to the common wiring, the first and second active elements are set in conductive states in a period of voltage writing in a liquid crystal, and a high resistance state is set in a holding period.