Field emission device with fine local dimming
US8129895B2 · kind B2 · utility
1Cited by
6References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 6, 2008 |
| Grant date | Mar 6, 2012 |
| Priority date | — |
| Expiry date | Nov 6, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J2329/0455
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Provided is a field emission device (FED) capable of fine local dimming. In the FED, a cathode substrate is comprised of a plurality of cathode layers, and a plurality of interconnections are disposed on each of the cathode layers, so that fine local dimming is enabled using a plurality of cathode blocks without limiting the number of the cathode blocks. Also, since RC delays of the respective cathode blocks can be synchronized according to the design of the interconnections, current control signals can be simultaneously transmitted to the respective cathode blocks, thereby improving the characteristics of the FED.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.