Da Liu
40Patents
14h-index
13Co-inventors
78Inventor score
Filing activity: May 6, 2002 → Jun 2, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6936975B2 | Power supply for an LCD panel | Emerging Cross-Sectional Technologies | 77 | Expired |
| US8044609B2 | Circuits and methods for controlling LCD backlights | Electricity | 53 | Active |
| US6856519B2 | Inverter controller | Emerging Cross-Sectional Technologies | 48 | Expired |
| US6809938B2 | Inverter controller | Emerging Cross-Sectional Technologies | 43 | Expired |
| US7847783B2 | Controller circuitry for light emitting diodes | Electricity | 37 | Active |
| US6897698B1 | Phase shifting and PWM driving circuits and methods | Electricity | 37 | Expired |
| US7075245B2 | Driving circuit for multiple cold cathode fluorescent lamps backlight applications | Emerging Cross-Sectional Technologies | 37 | Expired |
| US7057611B2 | Integrated power supply for an LCD panel | Physics | 35 | Expired |
| US6900993B2 | Inverter controller | Emerging Cross-Sectional Technologies | 34 | Expired |
| US7120035B2 | Inverter controller | Emerging Cross-Sectional Technologies | 32 | Expired |
| US7919936B2 | Driving circuit for powering light sources | Electricity | 30 | Active |
| US7394209B2 | Liquid crystal display system with lamp feedback | Emerging Cross-Sectional Technologies | 29 | Expired |
| US7126289B2 | Protection for external electrode fluorescent lamp system | Emerging Cross-Sectional Technologies | 27 | Expired |
| US8248439B2 | Backlight controller for driving light sources | Emerging Cross-Sectional Technologies | 22 | Active |
| US7151394B2 | Phase shifting and PWM driving circuits and methods | Electricity | 14 | Expired |
| US7425949B2 | Power supply for an LCD panel | Emerging Cross-Sectional Technologies | 9 | Expired |
| US8148919B2 | Circuits and methods for driving light sources | Electricity | 9 | Active |
| US7253569B2 | Open lamp detection in an EEFL backlight system | Emerging Cross-Sectional Technologies | 6 | Expired |
| US8143800B2 | Circuits and methods for driving a load with power factor correction function | Emerging Cross-Sectional Technologies | 6 | Active |
| US8253352B2 | Circuits and methods for powering light sources | Electricity | 6 | Active |
| US8237379B2 | Circuits and methods for powering light sources | Electricity | 6 | Active |
| US8169147B2 | Circuit for vehicle lighting | Emerging Cross-Sectional Technologies | 5 | Active |
| US7248240B2 | Protection for external electrode fluorescent lamp system | Emerging Cross-Sectional Technologies | 3 | Active |
| US7714520B2 | LED driver circuit capable of adjusting output current | Electricity | 3 | Active |
| US8711119B2 | Display systems with touch screens | Physics | 3 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.