System and method for achieving optimal display contrast in a mobile communication device
First Claim
Patent Images
1. A method for calibrating a contrast offset value for an LCD contrast control system in a mobile device, comprising:
- adjusting a user contrast setting on the mobile device to a desired optimal value;
initializing the contrast offset value;
determining a contrast ratio of the LCD;
incrementing the contrast offset value until the determined contrast ratio reaches a peak value, while the user contrast setting remains at the optimal value;
storing the contrast offset value, at which the contrast ratio is a peak value, in a memory of the mobile device; and
using, by the mobile device, the stored contrast offset value to convert the user contrast setting into a hardware contrast setting.
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Abstract
A method is for calibrating a contrast offset value for an LCD contrast control system in a mobile device. The method includes the steps of adjusting a user contrast setting on the mobile device to a desired optimal value, initializing the contrast offset value, determining a contrast ratio of the LCD, and incrementing the contrast offset value until the contrast ratio reaches a peak value.
9 Citations
12 Claims
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1. A method for calibrating a contrast offset value for an LCD contrast control system in a mobile device, comprising:
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adjusting a user contrast setting on the mobile device to a desired optimal value; initializing the contrast offset value; determining a contrast ratio of the LCD; incrementing the contrast offset value until the determined contrast ratio reaches a peak value, while the user contrast setting remains at the optimal value; storing the contrast offset value, at which the contrast ratio is a peak value, in a memory of the mobile device; and using, by the mobile device, the stored contrast offset value to convert the user contrast setting into a hardware contrast setting. - View Dependent Claims (2, 3, 4)
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5. A method for calibrating a contrast offset value for an LCD contrast control system in a mobile device, comprising:
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adjusting a user contrast setting on the mobile device to a desired optimal value; initializing the contrast offset value; determining a contrast ratio of the LCD; and incrementing the contrast offset value until the contrast ratio reaches a peak value; wherein the incrementing step includes; determining whether the contrast ratio is higher than any previously measured values; if the contrast ratio is higher than any previously measured values, then saving the contrast offset value and contrast ratio to a memory location, incrementing the contrast offset value, and determining an updated contrast ratio; if the contrast ratio is not higher than any previously measured values, then determining whether the contrast ratio is a first measured value; if the contrast ratio is the first measured value, then incrementing the contrast offset value and determining an updated contrast ratio; and if the contrast ratio is not the first measured value, then setting the contrast offset on the mobile device to the saved contrast offset value. - View Dependent Claims (6, 7, 8)
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9. A method for calibrating a contrast offset value for an LCD contrast control system in a mobile device, comprising:
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adjusting a user contrast setting on the mobile device to a desired optimal value; initializing the contrast offset value; determining a contrast ratio of the LCD; and incrementing the contrast offset value until the contrast ratio reaches a peak value; wherein the incrementing step includes; determining whether the contrast ratio is higher than any previously measured values; if the contrast ratio is higher than any previously measured values, then saving the contrast offset value and contrast ratio to a memory location, incrementing the contrast offset value, and determining an updated contrast ratio; if the contrast ratio is not higher than any previously measured values, then determining whether the contrast ratio is a first measured value; if the contrast ratio is the first measured value, then incrementing the contrast offset value and determining an updated contrast ratio; if the contrast ratio is not the first measured value, then determining whether the contrast ratio is substantially less than the saved contrast ratio; if the contrast ratio is not substantially less than the saved contrast ratio, then incrementing the contrast offset value and determining an updated contrast ratio; and if the contrast ratio is substantially less than the save contrast ratio, then setting the contrast offset value on the mobile device to the saved contrast offset value. - View Dependent Claims (10, 11, 12)
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Specification