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US 11,308,842 B2Granted
Display driving apparatus and current bias circuit thereof
AssigneeSilicon Works Co., Ltd.
InventorsYoung Bok Kim, Taiming Piao, Young Tae Kim, Dong Hun Lee
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Abstract
The present disclosure discloses a display driving apparatus configured to process data by using a low voltage bias current, process a source signal by using a high voltage bias current, and provide the low voltage bias current and the high voltage bias current by using one bias core.
Claims15
A display driving apparatus comprising:
- a bias core configured to provide a core current based on low voltage power;
- a low voltage bias unit configured to generate a low voltage bias current in response to the core current;
- a current conversion circuit configured to generate a transfer current based on a driving voltage for high voltage power in response to the core current;
- a high voltage bias unit configured to generate a high voltage bias current based on the driving voltage in response to the transfer current;
- and
- a signal driving circuit configured to output a source signal corresponding to data for a display, perform first bias control for processing the data by using the low voltage bias current, and perform second bias control for processing the source signal by using the high voltage bias current.
3 more elements
A current bias circuit of a display driving apparatus, comprising:
- a bias core configured to provide a core current based on low voltage power;
- a current conversion circuit configured to generate a transfer current based on a driving voltage for high voltage power in response to the core current;
- and
- a high voltage bias unit configured to generate a high voltage bias current based on the driving voltage in response to the transfer current,
- wherein the current conversion circuit is driven by the driving voltage for the high voltage power and a first ground voltage for the low voltage power.
2 more elements
Dependencies are inferred from the claim text.