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US 8,264,437 B2Granted
Display for high brightness conditions
AssigneeSony Mobile Communications Inc.
InventorHiroyuki Nitanda
Life of this patent
Estimating the term…
Abstract
A device including a housing and a display provided on a surface of the housing. The device also includes a light sensor provided on the surface of the housing, and a controller coupled to the display and the sensor. The controller is configured to change a display mode of the display from a first display mode to a monochromatic display mode when a light level of ambient light sensed by the light sensor exceeds a threshold value.
Claims15
A portable handheld communication device comprising:
- a housing;
- a display provided on a surface of the housing;
- a light sensor, provided on the surface of the housing, to sense ambient light;
- a memory to store:
- multiple versions of a first particular image, of a plurality of a first type of images, wherein the multiple versions of the particular image vary in contrast, and
- a plurality of images, of a second type, for which no corresponding monochromatic versions are stored in the memory;
- and
- a controller coupled to the display and the light sensor,
- wherein, when a light level of the ambient light exceeds a threshold value, the controller is configured to:
- assign first pixel colors and/or shades to black, and second pixel colors and/or shades to white,
- convert, based on the assignment, a second particular image, of the second type of images, to a monochromatic image,
- change a display mode of the display, from a first display mode to a monochromatic display mode, for presenting at least one of the first particular image or the converted second particular image on a background present on the display, and
- retain, in the first display mode, the display mode for presenting one or more images of the second type of images.
10 more elements
A mobile handheld communications device comprising:
- a first display;
- a first light sensor to sense a first ambient light level associated with the first display;
- a housing having a first surface upon which the first display is provided;
- a second display provided on a second surface of the housing;
- a second light sensor to sense a second ambient light level associated with the second display;
- and
- a controller coupled to the first display, the second display, the first light sensor, and the second light sensor;
- wherein the controller is configured to independently and concurrently set:
- a color display mode for the first display in response to:
- the first ambient light level being lower than a threshold value, or
- the first ambient light level exceeding the threshold value and a determination that a first particular image, to be displayed via the first display, is stored in a memory of the mobile handheld communications device, in a color version and not in a monochrome version, and
- a monochromatic display mode for the second display in response to:
- the second ambient light level exceeding the threshold value, and:
- a determination that a second particular image, to be displayed on a background present on the second display, is stored in the memory of the mobile handheld communications device, in a color version and in a monochrome version, and if not,
- a determination that the first particular image, to be displayed on the background present on the second display, is to be converted to a monochromatic version based on an assignment of first pixel colors and/or shades to black, and an assignment of second pixel colors and/or shades to white.
12 more elements
A method comprising:
- storing a plurality of images, in a memory of a communication device, wherein some of the stored images include one or more monochromatic image versions corresponding to a color image version, and some of the stored images include a color image version and no corresponding monochromatic image version;
- sensing a level of ambient light associated with a display of the mobile communication device;
- comparing the ambient light level with a particular amount;
- displaying a color image version and not a monochromatic image version of a first image, of the stored images, via the display, when the ambient light level is less than the particular amount,
- determining, when the ambient light level exceeds the particular amount, whether a second image, of the stored images, includes a monochromatic image version;
- displaying, when the second image includes a monochromatic image version, the monochromatic image version of the second image on a background via the display;
- displaying, when the second image does not include a monochromatic image version, a color image version of the second image on the background via the display;
- determining, when the ambient light level exceeds the particular amount, that a third image, of the stored images, does not include a monochromatic image version;
- converting the third image into a monochromatic image version;
- and
- displaying the monochromatic image version of the third image on the background via the display.
8 more elements
Dependencies are inferred from the claim text.