Electric lamp and discharge devices – With luminescent solid or liquid material – Solid-state type
Reexamination Certificate
2007-07-19
2010-11-09
Ton, Toan (Department: 2889)
Electric lamp and discharge devices
With luminescent solid or liquid material
Solid-state type
C521S154000
Reexamination Certificate
active
07830082
ABSTRACT:
An active matrix type organic light emitting diode display serving as a bottom emission type device coupling out emission of an organic electroluminescence layer from a substrate where thin film transistors are formed or as a top emission type device coupling out the emission on the opposite side to the substrate. In a suitable layer (102, 106, 107) in each device, an insulating film containing SiO is formed. The insulating film is porous with nano pores in the film. The porous insulating film is controlled as to film density, film refractive index, nano pore diameter in film, average nano pore diameter in film and maximum nano pore diameter in film so that the refractive index is lower than that of a transparent electrode or a transparent substrate of the display holding the organic electroluminescence layer therebetween, and nano pores are present in the film. Light scattering effect can be obtained so that emission from the organic electroluminescence layer (110) can be coupled out to the outside efficiently.
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Adachi Masaya
Ogata Kiyoshi
Otani Miharu
Tanaka Jun
A. Marquez, Esq. Juan Carlos
Hanley Britt D
Hitachi Displays Ltd.
Stites & Harbison PLLC
Ton Toan
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