Mobile information processing apparatus

Abstract

A mobile information communication apparatus includes a data processing device for sending plotting command/data to a display control device that controls the pixels of a display panel belonging to the mobile information communication apparatus. An interface device is provided which receives the plotting command/data generated by the data processing device and sends, based on plotting command/data, an external display signal to the external display device. The data processing device and the interface device are configured to send, from the interface device, a higher-resolution external display signal.

1 . A graphic controller which is installed in an information processing apparatus including (i) a display means including a display panel having a screen on which an image is displayed as a result of an activation of pixels and a display control means which controls the activation of the pixels of the screen of the display panel, (ii) an interface means which is connected to a peripheral device, the peripheral device including an external display means or the peripheral device being connected to the external display means; and (iii) a processing means including a central processing circuit which processes an image data file, and the graphic controller which writes and reads bit-mapped data to a single VRAM, generates a digital display signal that conveys the read bit-mapped data, and sends the digital display signal to the display control means and/or to the interface means,
 wherein the graphic controller performs the following functions:
 a function to read first bit-mapped data of an image having a first resolution from the VRAM, to generate a first digital display signal that conveys the read first bit-mapped data, and to send the first digital display signal to the display control means; and 
 a function to read second bit-mapped data of an image having a second resolution from the VRAM, to generate a second digital display signal that conveys the read second bit-mapped data, and to send the second digital display signal to the interface means, the second resolution being higher than the first resolution.