Back to results
US 2010/0164933 A1Published application
Lcd source driver
OwnerSang-Hoon Lim, Tae-Woon Kim +2inventors
InventorsSang-Hoon Lim, Tae-Woon Kim, Shin-Young Yi, Jin-Seok Koh
Life of this patent
Estimating the term…
Abstract
An LCD source driver may include a digital-to-analog converter including a sampling capacitor to sample, according to a signal, at least one of a first voltage and a second voltage. The LCD source driver may also include a reconstruction filter in which capacitance applied from the sampling capacitor according to the signal and capacitance of an integral capacitor for holding a previous output voltage are connected in parallel.
Claims20
A liquid crystal display source driver comprising:
- a digital-to-analog converter including a sampling capacitor to sample, according to a signal, at least one of a first voltage and a second voltage;
- and
- a reconstruction filter in which capacitance applied from the sampling capacitor according to the signal and capacitance of an integral capacitor for holding a previous output voltage are connected in parallel.
An liquid crystal display source driver comprising:
- a digital-to-analog converter including a sampling capacitor to sample, according to a signal, at least one of a first voltage and a second voltage;
- and
- a reconstruction filter configured to select a reference signal using some M bits of N bits, when N bits are implemented, and to perform digital-to-analog conversion using a delta-sigma conversion method using the remaining N-M bits.
Dependencies are inferred from the claim text.