Automatic zoom for a display

1. A method comprising:

determining a minimum and optimum font size for information displayed on a display based on a predetermined set of criteria, the predetermined set of criteria comprising at least one of display properties, display content, user characteristics, or environmental characteristics; and

automatically adjusting the displayed information on the display using a module such that a size of a smallest font of the information is not smaller than the minimum font size and that a size of a main font of the information is not smaller than the optimum font size.

2. The method of claim 1 , wherein the display properties comprise at least one of a brightness characteristic of the display or a display luminescence,

wherein the display content comprise stroke widths of the fonts in use,

wherein the environmental characteristics comprise ambient lighting, and

wherein the user characteristics comprise at least one of vision characteristics of a user or an age of a user.

3. The method of claim 2 , wherein the brightness characteristic of the display is determined using at least one of contrast settings from a display driver, the display content, the display luminescence, the ambient lighting detected by an ambient light sensor, or a weighted average of a reflectance display surround and a predicted average luminescence of the display.

4. The method of claim 2 , wherein the brightness characteristic of the display is determined using a sensor.

5. The method of claim 1 , further comprising scaling other fonts in the information in relation to the minimum and optimum font sizes using the module.

6. The method of claim 1 , further comprising using a table to determine the minimum and optimum font size according to the predetermined set of criteria.

7. The method of claim 2 , wherein the brightness characteristic is used to determine the minimum and optimum font size according to a user's vision characteristics stored in a table.

8. The method of claim 2 , wherein the brightness characteristic is used to determine the minimum selected minimum and optimum font size according to a user's age stored in a table.

9. The method of claim 1 , further comprising allowing a manual control for manually adjusting font sizes of the displayed information after the automatic adjustment.

10. A computer program product comprising a non-transitory computer readable storage medium, the computer program product configured to, when executed, cause a processor to:

determine a minimum and optimum font size for information displayed on a display based on a predetermined set of criteria, the predetermined set of criteria comprising at least one of the predetermined set of criteria comprising at least one of display properties, display content, user characteristics, or environmental characteristics; and

automatically adjust the displayed information on the display using a module such that a size of a smallest font of the information is not smaller than the minimum font size and that a size of a main font of the information is not smaller than the optimum font size.

11. An apparatus comprising:

a display; and

a module configured to determine a minimum and optimum font size for information displayed on the display based on a predetermined set of criteria, the predetermined set of criteria comprising at least one of the predetermined set of criteria comprising at least one of display properties, display content, user characteristics, or environmental characteristics, wherein the module is further configured to automatically adjust the displayed information such that a size of a smallest font of the information is not smaller than the minimum font size and that a size of a main font of the information is not smaller than the optimum font size.

12. The apparatus of claim 11 , wherein the display properties comprise at least one of a brightness characteristic of a display or a display luminescence,

wherein the display content comprise stroke widths of the fonts in use,

wherein the environmental characteristics comprise ambient lighting, and

wherein the user characteristics comprise at least one of vision characteristics of a user or an age of a user; and

the module comprises a display driver configured to provide contrast settings of the display for determining the brightness characteristic.

13. The apparatus of claim 12 , wherein the brightness characteristic of the display is determined using at least one of contrast settings from a display driver, the display content, the display luminescence, the ambient lighting detected by an ambient light sensor, or a weighted average of a reflectance display surround and a predicted average luminescence of the display.

14. The apparatus of claim 13 , wherein the device comprises a sensor for sensing the brightness characteristic.

15. The apparatus of claim 11 , wherein the module is further configured for scaling other fonts in the information in relation to the minimum and optimum font sizes.

16. The apparatus of claim 11 , wherein the module is further configured to use a table to determine the minimum and optimum font size according to the predetermined set of criteria.

17. The apparatus of claim 12 , wherein the module is further configured to use the brightness characteristic to determine the minimum and optimum font size according to a user's vision characteristics.

18. The apparatus of claim 12 , wherein the module is further configured to use the brightness characteristic to determine the minimum selected minimum and optimum font size according to a user's age.

19. The apparatus of claim 11 , further comprising an input device configured for manually adjusting font sizes of the displayed information after the automatic adjustment.

20. A user interface comprising:

a display; and

a module configured to determine a minimum and optimum font size for information for presentation on the display based on a predetermined set of criteria, the predetermined set of criteria comprising at least one of display properties, display content, user characteristics, or environmental characteristics, wherein the module is further configured to automatically adjust the information such that a smallest font size of the information is not smaller than the minimum font size and a main font size of the information is not smaller than the optimum font size.