Display device and dimming device
US10670915B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 8, 2018 |
| Grant date | Jun 2, 2020 |
| Priority date | — |
| Expiry date | Jul 9, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2360/16
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
According to an aspect, a display device includes: a display panel including a display area with pixels; a backlight; and a dimmer. The dimmer includes a dimming panel including a dimming area overlapping the display area and a control circuit. The dimming area includes a plurality of regions each including a first electrode and a second electrode. The control circuit includes a shift register configured to receive an electrical signal for controlling a potential of each of the first electrodes and including a plurality of sequential circuits coupled in series, a holding circuit to which an output of each of the sequential circuits is coupled, and a gradation voltage setter to which an output of the holding circuit is coupled. Each of the first electrodes is coupled to an output of the gradation voltage setter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.