Data dependent drive scheme and display
First Claim
1. In a display system, a method for controlling a light source, said method comprising:
- receiving a plurality of data bits, each of said data bits being associated with one of a plurality of multi-bit data words and a different pixel of a display, said display having an array of pixels;
reading the value of each of said data bits;
determining whether each of said data bits has a value indicative of an off-state; and
generating a disable signal if each of said data bits has said value indicative of said off-state, said disable signal causing said light source to turn off; and
whereinsaid data bits are sequential bits such that one sequential bit of one of said multi-bit data words having said value indicative of said off state indicates that at least one subsequent bit of the same multi-bit data word will also have said value indicative of said off-state.
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Accused Products
Abstract
A method for writing data to a display includes the steps of receiving a plurality of data bits, where each bit is associated with a different pixel of the display, reading the value of each data bit, determining whether each data bits has an off-state value, and generating a disable signal if each data bit has an off-state value. Responsive to a disable signal, the method further includes suspending the transfer of data to the pixels of the display, turning off a light source (e.g., an LED, laser, etc.) for a time period dependent on the significance of at least one of the data bits, and/or forcing each pixel of the display into an off state for a time period dependent on the significance of at least one of the data bits. A display driver circuit for performing the methods of the present invention is also disclosed.
110 Citations
45 Claims
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1. In a display system, a method for controlling a light source, said method comprising:
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receiving a plurality of data bits, each of said data bits being associated with one of a plurality of multi-bit data words and a different pixel of a display, said display having an array of pixels; reading the value of each of said data bits; determining whether each of said data bits has a value indicative of an off-state; and generating a disable signal if each of said data bits has said value indicative of said off-state, said disable signal causing said light source to turn off; and
whereinsaid data bits are sequential bits such that one sequential bit of one of said multi-bit data words having said value indicative of said off state indicates that at least one subsequent bit of the same multi-bit data word will also have said value indicative of said off-state. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A display driver circuit for controlling a light source that illuminates a display having an array of pixels, said display driver circuit comprising:
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an input terminal set operative to receive a plurality of data bits, each of said data bits being associated with one of a plurality of multi-bit data words and a different pixel of said display; and detection logic operative to read the value of each of said data bits, determine whether each of said data bits has a value indicative of an off-state, and generate a disable signal if each of said data bits has said value indicative of said off-state; and
whereinsaid disable signal causes said light source to turn off; and said data bits are sequential bits such that one sequential bit of one of said multi-bit data words having said value indicative of said off state indicates that at least one subsequent bit of the same multi-bit data word will also have said value indicative of said off-state. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
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30. A display driver circuit for controlling a light source, said display driver circuit comprising:
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an input terminal set operative to receive a plurality of data bits, each of said data bits being associated with one of a plurality of multi-bit data words and a different pixel of a display, said display having an array of pixels; means for reading the value of each of said data bits; means for determining whether each of said data bits has a value indicative of an off-state; and means for selectively turning off said light source based on the values of said plurality of data bits; and
whereinsaid data bits are sequential bits such that one sequential bit of one of said multi-bit data words having said value indicative of said off state indicates that at least one subsequent bit of the same multi-bit data word will also have said value indicative of said off-state.
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31. A non-transitory, electronically-readable storage medium having code embodied therein for causing an electronic device to:
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receive a plurality of data bits, each of said data bits being associated with one of a plurality of multi-bit data words and a different pixel of a display, said display having an array of pixels; read the value of each of said data bits; determine whether each of said data bits has a value indicative of an off-state; and generate a disable signal if each of said data bits has said value indicative of said off-state, said disable signal for causing a light source to turn off; and
whereinsaid data bits are sequential bits such that one sequential bit of one of said multi-bit data words having said value indicative of said off state indicates that at least one subsequent bit of the same multi-bit data word will also have said value indicative of said off-state. - View Dependent Claims (32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45)
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Specification