Display device including light-emitting diode backlight unit
US11790834B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 30, 2021 |
| Grant date | Oct 17, 2023 |
| Priority date | — |
| Expiry date | Nov 30, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2320/066
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A display device may include: a light-emitting diode (LED) backlight unit (BLU), a pixel driving circuit configured to generate a scan signal and an image signal, a pixel circuit configured to generate an output current based on the scan signal and the image signal, and transmit the output current to the LED BLU, the pixel circuit including, a first transistor connected between an input pin and a node, the input pin configured to receive the image signal, the first transistor including a gate terminal configured to receive the scan signal, a second transistor connected between the node and a ground terminal, the second transistor including a gate terminal connected to the node, a third transistor connected between the node and a gate node, a fourth transistor configured to generate the output current according to a voltage of the gate node, and a capacitor connected to the gate node.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.