(57) ABSTRACT A signage device comprising one or more light sources, a waveguide or
arrangement of waveguides and photolumines cent features coupled thereto. In one …

4,995,718 5,132,820 5,276,438 5,279,511 5,345,251 5,378,574 5,380,362 5,403,518
5,573,711 5,589,100 5,699,097 5,745,094 5,835,174 5,892.497 5,914,806 5,930,026 …

In accordance with the principles of the invention, a back light comprising a diffuse light
guide, or other large area light Source, provides white or colored light that im**es onto an …

(57) ABSTRACT A light emissive display having a specular waveguide that propagates short
wavelength light and photoluminescent features adjacent to the waveguide that fluoresce …

4,741,988 A 5, 1988 Van der Zande et al. JP 59-171930 9, 1984 4,995,718 A 2, 1991
Jachimowicz et al. WO WO 99, 53373 10, 1999 5,132,820 A 7, 1992 Someya et al …

The present invention relates to an improved EPD which comprises both the traditional
up/down Switching and the in-plane switching modes. In other words, the improved EPD has …

The present invention relates to an improved EPD Which comprises both the traditional
up/doWn switching and the in-plane sWitching modes. In other Words, the improved EPD …

(57) ABSTRACT A electrically actuable display element comprises a Sub strate, a display
Surface and an electrically actuable element disposed between the substrate and the …

6. A 56 SE" 5,923,480 A 7/1999 Labeye--- f al 5,926,591 A 7/1999 Labeye et al. 5,396,350 A
3, 1995 Beeson et al. 5,405.490 A 4, 1995 Park et al. 5,936,596 A* 8/1999 Yoshida et …

The present invention relates to an improved EPD which comprises both the traditional
up/down switching and the in-plane switching modes. In other words, the improved EPD has …