Display
US6281868A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 25, 1999 |
| Grant date | Aug 28, 2001 |
| Priority date | — |
| Expiry date | Jan 25, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2310/06
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A switching TFT (thin-film transistor) 40 is disposed closely to an actuator 14 which comprises a lower electrode 28b, a shape holding layer 26, and an upper electrode 28a that are disposed on a vibrator. The upper electrode 28a of the actuator 14 is electrically connected through a contact 44 to a source/drain region 42 of the TFT 40. A gate line 46 and the gate electrode of the TFT 40 are electrically connected to each other through a contact 50. A data line 48 and a source/drain region 52 of the TFT 40 are electrically connected to each other through a contact 54. The TFT 40 may be replaced with a varistor or a piezoelectric relay. If a varistor is used, the off resistance of the varistor is preferably established such that a variation in a voltage applied to the actuator 14 due to a discharge owing to the off resistance in an unselected period is kept within 5%, and the on resistance of the varistor is preferably established such that a voltage applied to the actuator 14 increases to 95% in an effective selected period. The display apparatus with actuators 14 having shape holding layers has low electric energy consumption and higher raster luminance, and allows wires or interco…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.