Power supply and touch display device including the same
US11635841B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 18, 2022 |
| Grant date | Apr 25, 2023 |
| Priority date | — |
| Expiry date | Aug 18, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K59/40
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A touch display device operates between a normal mode and a sleep mode, the touch display device including: a display panel; a touch panel; a data drive circuit to supply a data voltage; a touch drive circuit to supply a touch driving signal; a timing controller to supply a data control signal; a micro-control unit to supply a touch synchronization signal; and a power supply to supply a first and second driving voltage, the power supply including: a first converter to output the first driving voltage; a second converter to output the second driving voltage; a first switching unit to supply the first or second input voltage to the first converter; a second switching unit to supply the first or second input voltage to the second converter; and a switching control circuit to control the first and second switching units. Therefore, power consumption of the power supply is reduced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.