Shift register having a plurality of circuit blocks and image display apparatus using the shift register
US5990857A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Apr 30, 1997 |
| Grant date | Nov 23, 1999 |
| Priority date | — |
| Expiry date | Apr 30, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2330/021
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The shift register of this invention for sequentially transferring a digital signal in synchronization with a clock signal includes: a plurality of circuit blocks connected in series, each including a prescribed number of sequential latch circuits, each latch circuit outputting a signal corresponding to an input signal based on the clock signal; and a plurality of clock signal control circuits provided for the respective circuit blocks for controlling the supply of the clock signal to the latch circuits in the corresponding circuit blocks, wherein the control of the supply of the clock signal by each clock signal control circuit to the latch circuits in the corresponding circuit block is conducted in response to output signals from prescribed latch circuits in the circuit blocks preceding and subsequent to the corresponding circuit block.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.