LCD source driver feedback system and method
First Claim
1. A method for detecting a failure in an LCD source driver comprising the steps of:
- providing at least one dummy channel in addition to the active channels on the source driver;
driving the dummy channel and all of the active channels to be used, with original signals;
receiving said dummy channel original signal at a microprocessor; and
comparing said dummy channel original signal with at least one active channel original signal at the microprocessor.
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Abstract
An electrical assembly and method for detecting failures in an LCD source driver is disclosed herein. A plurality of active channels are placed on the source driver which communicate electronically with an LCD. At least one dummy channel may be placed on the source driver which is driven with an original signal. A microprocessor may then receive the dummy channel and compare the received dummy channel signal to the original signal. An error message may be transmitted when the received dummy channel signal does not match the original signal. Alternatively, the source driver may be provided with a split active channel which is provided with an original signal that is split into an active split channel and a dummy split channel. While the active split channel is sent to the LCD, the dummy split channel is sent to the microprocessor for comparison with the original signal.
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Citations
11 Claims
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1. A method for detecting a failure in an LCD source driver comprising the steps of:
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providing at least one dummy channel in addition to the active channels on the source driver; driving the dummy channel and all of the active channels to be used, with original signals; receiving said dummy channel original signal at a microprocessor; and comparing said dummy channel original signal with at least one active channel original signal at the microprocessor. - View Dependent Claims (2, 3, 4, 5)
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6. An electrical assembly for detecting failures in an LCD source driver comprising:
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a plurality of active channels on the source driver which communicate electronically with an LCD; a dummy channel on the source driver which is driven with an original signal; and a microprocessor which receives the dummy channel and compares the received dummy channel signal to the original signal; wherein the dummy channel is configured to bypass the LCD. - View Dependent Claims (7, 8, 9, 10, 11)
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Specification