Display with array and multiplexer on substrate and with attached digital-to-analog converter integrated circuit having many outputs
US6281891A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 2, 1995 |
| Grant date | Aug 28, 2001 |
| Priority date | — |
| Expiry date | Jun 2, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G3/3611
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A product such as a display includes a first substrate on which array circuitry and multiplexer circuitry are formed and also includes one or more integrated circuit (IC) structures attached to the first substrate. The array circuitry includes N data lines, each driven by multiplexed signals, where N is greater than 32. The multiplexer circuitry provides the multiplexed signals in response to analog drive signals from P analog input leads and multiplexer control signals from Q control leads, where P is less than N but not less than 32 and where Q is less than N but not less than N/P. Each of R IC structures can includes a single crystal substrate, each with digital-to-analog converting (DAC) circuitry, where R is greater than zero. Each substrate has at least S analog output leads, where S is not less than 32. Together, the R IC structures have T analog output leads, where T is greater than P, and each of the P analog input leads is paired with and connected to one of the T analog output leads. The array circuitry and multiplexer circuitry can include polysilicon thin-film transistors (TFTs) on a glass substrate. The IC structure can be attached to the glass substrate using tape-au…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.