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US 6,184,874 B2Granted
Method for driving a flat panel display
AssigneeMotorola, Inc.
InventorsRobert T. Smith, Cecil W. Penn
Life of this patent
Estimating the term…
Abstract
A method for driving a field emission display (10) includes the steps of dividing a digital video word (14), which has n-bits, into N digital sub-words (16, 17), each of which has n′-bits, and sequentially converting each of the digital sub-words (16, 17) into a control signal (27, 29). The control signals (27, 29) are sequentially utilized to control drive signals (28, 38, 39, 41) applied to the field emission display (10).
Claims17
A method for driving a flat panel display comprising the steps of:
- receiving a digital video word;
- dividing the digital video word into a plurality of digital sub-words;
- converting a first one of the plurality of digital sub-words into a first control signal;
- utilizing the first control signal to control a first drive signal applied to the flat panel display;
- thereafter, converting a second one of the plurality of digital sub-words into a second control signal;
- and
- utilizing the second control signal to control a second drive signal applied to the flat panel display, wherein an active time of the first and second control signals is determined by a value of, respectively, the first and second one of the plurality of digital sub-words.
4 more elements
A method for driving a flat panel display comprising the steps of:
- receiving a digital video word, wherein the digital video word has a plurality of digital sub-words;
- selecting a first one of the plurality of digital sub-words;
- converting the first one of the plurality of digital sub-words into a first control signal;
- utilizing the first control signal to control a first drive signal applied to the flat panel display;
- thereafter, selecting a second one of the plurality of digital sub-words;
- converting the second one of the plurality of digital sub-words into a second control signal;
- and
- utilizing the second control signal to control a second drive signal applied to the flat panel display, wherein an active time of the first and second control signals is determined by a value of, respectively, the first and second one of the plurality of digital sub-words.
5 more elements
A method for driving a flat panel display comprising the steps of:
- receiving a digital video word;
- dividing the digital video word into a plurality of digital sub-words;
- sequentially converting each of the plurality of digital sub-words into a control signal to define a plurality of control signals;
- and
- sequentially utilizing each of the plurality of control signals to control a drive signal applied to the flat panel display wherein an active time of each of the plurality of control signals is determined by a value of its respective digital sub-word.
2 more elements
A method for driving a flat panel display comprising the steps of:
- providing an 8-bit video word, wherein the 8-bit video word has a least significant nibble and a most significant nibble;
- selecting the least significant nibble
- converting the least significant nibble into a first control signal, wherein the first control signal has an active time responsive to a value of the least significant nibble;
- utilizing the first control signal to control a first drive signal applied to the flat panel display, wherein an active time of the first drive signal is responsive to the first control signal;
- thereafter, converting the most significant nibble into a second control signal, wherein the second control signal has an active time responsive to a value of the most significant nibble;
- and
- utilizing the second control signal to control a second drive signal applied to the flat panel display, wherein an active time of the second drive signal is responsive to the second control signal.
4 more elements
A method for driving a flat panel display comprising the steps of:
- providing an 8-bit video word, wherein the 8-bit video word has a least significant nibble and a most significant nibble;
- selecting the most significant nibble;
- converting the most significant nibble into a first control signal, wherein the first control signal has an active time responsive to a value of the most significant nibble;
- utilizing the first control signal to control a first drive signal applied to the flat panel display, wherein an active time of the first drive signal is responsive to the first control signal;
- thereafter, converting the least significant nibble into a second control signal, wherein the second control signal has an active time responsive to a value of the least significant nibble;
- and
- utilizing the second control signal to control a second drive signal applied to the flat panel display, wherein an active time of the second drive signal is responsive to the second control signal.
4 more elements
A method for driving a field emission display comprising the steps of:
- providing an 8-bit video word, wherein the 8-bit video word has a least significant nibble and a most significant nibble;
- selecting the least significant nibble;
- converting the least significant nibble into a first control signal, wherein the first control signal has an active time responsive to a value of the least significant nibble;
- utilizing the first control signal to control a first drive signal applied to the field emission display, wherein an active time of the first drive signal is responsive to the first control signal;
- thereafter, converting the most significant nibble into a second control signal, wherein the second control signal has an active time responsive to a value of the most significant nibble;
- and
- utilizing the second control signal to control a second drive signal applied to the field emission display, wherein an active time of the second drive signal is responsive to the second control signal.
4 more elements
Dependencies are inferred from the claim text.