Display device
AssigneeHitachi Displays, Ltd.
InventorsMaki Taniguchi, Tomoji Oishi, Masahiro Nishizawa, Shinichi Kato, Norikazu Uchiyama
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Abstract
In a display device comprising a optical region containing a plurality of pigment grains utilized for wavelength selection, anti-reflection, improvement for light emitting performance or else, the present invention chemically modifies dyestuff molecules utilized for forming the pigment grains to be dissolved in a solvent in which the dyestuff molecules are insoluble originally, and then reduces solubility of the modified dyestuff molecules in the solvent by energy transfer thereto to aggregate the dyestuff molecules, so that grain sizes of pigment grains are suitably controlled for the optical region in accordance with its use.
Claims21
A display device comprising:
- an optical region consists of a plurality of first parts each formed of a plurality of dyestuff molecules which are aggregated thereat and a second part including derivatives of the dyestuff molecule,
- wherein the plurality of first parts are distributed in the second part separately, and
- the derivatives of the dyestuff molecule are soluble in one of solvents which the dyestuff molecule itself is insoluble.
A display device comprising:
- an optical region containing a plurality of pigment grains each formed by a plurality of pigment molecules encapsulated in an inorganic material,
- wherein each of the plurality of pigment grains has a grain size not greater than 70 nm.
A display device comprising:
- a plurality of pixels each having a light emitting layer formed of an organic material,
- wherein the light emitting layer contains a plurality of pigment grains distributed in the organic material, and each of the plurality of pigment grains is formed of a plurality of dyestuff molecules aggregated or polymerized therein.
Dependencies are inferred from the claim text.