Visual notification methods for candy-bar type cellphones
First Claim
Patent Images
1. A method of indicating inactivity of a powered on, inactive electronic device having a display, the display having a backlight comprising multiple light emitting diodes (LEDs), the method comprising:
- tracking an inactivity time for the electronic device;
comparing the inactivity time against a threshold;
if the inactivity time exceeds the threshold, activating a visual notification on the electronic device to indicate inactivity of the electronic device to the user by using at least one LED of the backlight, but less than all of the LEDs of the backlight in a flashing pattern; and
synchronizing the display to set only pixels in the display that have a colour component corresponding to a colour of an LED that is being activated in the flashing pattern to a transmissive state.
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Abstract
A wireless handheld communications device with a liquid crystal display, especially, a field sequential liquid crystal display, includes a visual notification for a powered up, inactive state. The visual notification is preferably through a light emitting diode that may be part of the backlighting system for the LCD or may be independent from the backlighting system. The waveforms, periodicity, color selection, and color sequencing may be customizable by one or both of the manufacturer and user.
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Citations
20 Claims
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1. A method of indicating inactivity of a powered on, inactive electronic device having a display, the display having a backlight comprising multiple light emitting diodes (LEDs), the method comprising:
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tracking an inactivity time for the electronic device; comparing the inactivity time against a threshold; if the inactivity time exceeds the threshold, activating a visual notification on the electronic device to indicate inactivity of the electronic device to the user by using at least one LED of the backlight, but less than all of the LEDs of the backlight in a flashing pattern; and synchronizing the display to set only pixels in the display that have a colour component corresponding to a colour of an LED that is being activated in the flashing pattern to a transmissive state. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. An electronic device, comprising:
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a liquid crystal display; a backlight for the liquid crystal display comprising multiple light emitting diodes (LEDs); a processor for controlling the liquid crystal display; a keypad for providing input to the processor; and a module to monitor any inactivity time of the electronic device, the module being configured to activate a visual notification on the electronic device of an inactive state of the electronic device with the liquid crystal display by using at least one LED of the backlight but less than all of the LEDs in a flashing pattern and by synchronizing the display to set only pixels in the display that have a colour component corresponding to a colour of an LED that is being activated in the flashing pattern to a transmissive state. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification