Display device, image forming apparatus, recording medium and display method

A display device comprising:

• first and second driving parts connected in series with light-emitting diodes disposed in a matrix configuration to drive said light-emitting diodes in a time-division manner, and said light-emitting diodes are lit when said first and second driving parts are driven simultaneously,
• wherein a non-driving cycle in which at least one of said first and second driving parts is not driven is inserted into a driving period of said first and second driving parts in a case of a power-saving mode or a standby mode.

An image forming apparatus exposing a photosensitive body by an optical signal according to given image information so as to form a latent image, and developing the latent image so as to render a desired image, wherein said apparatus includes a display device comprising:

• first and second driving parts connected in series with light-emitting diodes disposed in a matrix configuration to drive said light-emitting diodes in a time-division manner, and said light-emitting diodes are lit when said first and second driving parts are driven simultaneously,
• wherein a driving period of at least one of said first and second driving parts is dynamically changed in a case of a predetermined operation mode of said apparatus, and a driving time interval in the driving period is fixed when the driving period is changed.

An image forming apparatus exposing a photosensitive body by an optical signal according to given image information so as to form a latent image, and developing the latent image so as to render a desired image, wherein said apparatus includes a display device comprising:

• first and second driving parts connected in series with light-emitting diodes disposed in a matrix configuration to drive said light-emitting diodes in a time-division manner, and said light-emitting diodes are lit when said first and second driving parts are driven simultaneously,
• wherein a non-driving cycle in which at least one of said first and second driving parts is not driven is inserted into a driving period of said first and second driving parts in a case of a power-saving mode or a standby mode.

A recording medium in which a software program is recorded for causing a computer to perform operation of a display device comprising:

• first and second driving parts connected in series with light-emitting diodes disposed in a matrix configuration to drive said light-emitting diodes in a time-division manner, and said light-emitting diodes are lit when said first and second driving parts are driven simultaneously,
• wherein a driving period of at least one of said first and second driving parts is dynamically changed in a case of a predetermined operation mode in the software program recorded in said recording medium, and a driving time interval in the driving period is fixed when the driving period is changed.

A recording medium in which a software program is recorded for causing a computer to perform operation of a display device comprising:

• first and second driving parts connected in series with light-emitting diodes disposed in a matrix configuration to drive said light-emitting diodes in a time-division manner, and said light-emitting diodes are lit when said first and second driving parts are driven simultaneously,
• wherein a non-driving cycle in which at least one of said first and second driving parts is not driven is inserted into a driving period of said first and second driving parts in a case of a power-saving mode or a standby mode in the software program recorded in said recording medium.

A display method of displaying in a display device in which first and second driving parts are connected in series with light-emitting diodes disposed in a matrix configuration to drive said light-emitting diodes in a time-division manner, and said light-emitting diodes are lit when said first and second driving parts are driven simultaneously, comprising:

• dynamically changing a driving period of at least one of said first and second driving parts in a case of a predetermined operation mode;
• and
• fixing a driving time interval in the driving period when the driving period is changed.

A display method of displaying in a display device in which first and second driving parts are connected in series with light-emitting diodes disposed in a matrix configuration to drive said light-emitting diodes in a time-division manner, and said light-emitting diodes are lit when said first and second driving parts are driven simultaneously, comprising:

• inserting into a driving period of said first and second driving parts a non-driving cycle in which at least one of said first and second driving parts is not driven in a case of a power-saving mode or a standby mode.