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US 2004/0104904 A1Published application
Image display system and display device
AssigneeRohm Co., Ltd.
InventorKyoji Marumoto
Life of this patent
Estimating the term…
Abstract
Image data to be the frame image is pre-stored in a display memory, while only an updating area in a display memory, namely an area image data of a specific area, is DMA transferred. Therefore, the amount of data transfer required for the captured image data is reduced, and the numbers of operation times of transferring the image data is also reduced.
Claims8
An image display system comprising:
- a display memory for storing display image data to be displayed on a display panel;
- an area image data generating section for supplying an area image data which is corresponding to a specific area of a captured image data by a image capturing device to said display memory;
- and
- a CPU which is coupled to said display memory and to said area image data generating section so as to perform controls thereof;
- wherein said CPU stores a frame image data to be a frame image into said display memory before said area image data is transferred to said display memory, whereby said frame image data and said area image data are composed with each other to form an in-fame captured image data to be stored into said display memory, said in-frame captured image data being displayed on said display panel.
2 more elements
A display device comprising:
- a display panel;
- a display memory for storing a display image data to be displayed on a display panel;
- storing means for storing a frame image data to be a frame image to be supplied to said display memory;
- an image capturing device;
- an area image data generating section for supplying an area image data which is corresponding to a specific area of an image data captured by said image capturing device to said display memory;
- and
- a CPU which is connected to said display panel, said display memory;
- said storing means, said image capturing device, and said area image data generating section so as to perform controls thereof,
- wherein said CPU reads out a frame image data to be a frame image from said storing means and stores said frame image data into said display memory before said area image data is transferred to said display memory, whereby said frame image data and said area image data are composed with each other to form an in-frame captured image data to be stored into said display memory, said in-frame captured image data being displayed on said display panel.
6 more elements
Dependencies are inferred from the claim text.