Method of storing and displaying photos on a digital photo frame

1. A method of storing and displaying photos on a digital photo frame, said digital photo frame having a photo-sized display screen rotatably mounted on a support such that said display screen is configurable in landscape-viewing or portrait-viewing orientations by rotation of said screen, said method comprising the steps of:

storing photo image files tagged as either landscape orientation or portrait orientation in an internal memory of said digital photo frame;

receiving an instruction to display photos stored in said internal memory;

determining an orientation of said display screen;

retrieving only photo image files from said internal memory that are tagged with an orientation corresponding to the orientation of said display screen; and

displaying said retrieved photo image files as photos on said display screen.

2. The method of claim 1 , wherein said photo image files are stored by a method comprising the steps of:

identifying a tag associated with each photo image file, said tag indicating the orientation of the photo; and

storing the photo image files in said internal memory in accordance with information contained in said tag.

3. The method of claim 1 , wherein said photo image files are stored by a method comprising the steps of:

displaying photo image files stored in an external memory device on said display screen;

selecting a landscape-orientation or a portrait-orientation for each displayed photo via a user interface associated with said digital photo frame;

tagging the corresponding photo image file as either landscape format or portrait format in accordance with orientation data received from said user interface; and

transferring the tagged photo image files to the internal memory.

4. The method of claim 1 , wherein said display screen has a length of at least 5 inches and a width of at least 3.5 inches.

5. The method of claim 1 , further comprising the step of:

rotating said display screen into a desired orientation.

6. The method of claim 1 , wherein said digital photo frame comprises an integral inkjet printer for printing photos displayed on said display screen.

7. The method of claim 6 , further comprising the step of:

receiving a print instruction from a user interface associated with said digital photo frame; and

printing the photo displayed on said display screen at the time when said print instruction is received.

8. The method of claim 7 , wherein said photos are displayed as a slideshow.

9. The method of claim 8 , wherein a period for displaying each photo during said slideshow is about equal to a period required for printing said photo.

10. The method of claim 8 , wherein said slideshow continues irrespective of whether a print instruction is received.

11. The method of claim 9 , wherein said period is in the range of 1 to 3 seconds.

12. The method of claim 6 , wherein said printer comprises a photo-width printhead.