SUBSTRATE WITH INTERFERENCE FILTER LAYER AND DISPLAY DEVICE USING SAME

WIPO Patent Application WO/2011/089646

A1

Disclosed is a substrate with an interference filter layer, which can be formed through a small number of production steps and has a high utilization efficiency of light. Also disclosed is a display device using the substrate with an interference filter layer. The substrate with an interference filter layer comprises a flat plate-like substrate and a filter layer which comprises a semi light-transmitting first reflective layer that is provided on the substrate, a light-transmitting layer and a semi light-transmitting second reflective layer that is provided on the light-transmitting layer. The light-transmitting layer is composed of a light-transmitting first spacer layer that is provided on the first reflective layer, and light-transmitting second spacer layer and third spacer layer that are provided on a part of the first reflective layer, and has a first region, a second region and a third region which have the first spacer layer in common, while having different optical film thicknesses due to the second spacer layer and the third spacer layer. The filter layer transmit light having different wavelengths respectively through the first to third regions.

NAKAI YUTAKA
ONO TOMIO
HONGUH YOSHINORI
NUKADA HIDEKI
HIRAYAMA YUZO
NAGATO HITOSHI
MIYAZAKI TAKASHI

PCT/JP2010/000334

July 28, 2011

January 21, 2010

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TOSHIBA KK (JP)
NAKAI YUTAKA
ONO TOMIO
HONGUH YOSHINORI
NUKADA HIDEKI
HIRAYAMA YUZO
NAGATO HITOSHI
MIYAZAKI TAKASHI

G02B5/28; G02B5/20; G02F1/1335

WO2005069376A1	2005-07-28
WO2005013369A1	2005-02-10
WO1995017690A1	1995-06-29
WO1994020879A1	1994-09-15

SAGOI MASAYUKI (JP)
Masayuki Sunai (JP)

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