Display system having electrode modulation to alter a state of an electro-optic layer
US6144353A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 27, 1997 |
| Grant date | Nov 7, 2000 |
| Priority date | — |
| Expiry date | Aug 27, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2320/0204
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Methods and apparatuses for display systems which modulate a control electrode to cause an electro-optic layer to be reset to a state in which display data is not viewable. In one embodiment of the invention, a display system includes a first substrate having a first plurality of pixel electrodes for receiving a first plurality of pixel data values representing a first image to be displayed. The display system further includes an electro-optic layer which is operatively coupled to the pixel electrodes and an electrode operatively coupled to the electro-optic layer. The electro-optic layer comprises a polymer dispersed liquid crystal material. The display system displays the first image and then applies a first control voltage to the electrode to alter a state of the electro-optic layer such that the first image substantially not displayed and then the display system displays a second image represented by a second plurality of pixel data values after the electrode receives a second control voltage. Various other apparatuses and methods are described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.