LIGHT- EMITTING ELEMENT AND DISPLAY DEVICE
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Accused Products
Abstract
A light-emitting element and a display device having a resonator structure which has a small luminance fluctuation, even if a film thickness is deviated from a designed value, thereby resulting in a variation in resonator optical path length. There are included: a first reflective member; a second reflective member; and a light-emitting layer provided therebetween, and there is provided a resonator structure that transmits part of light by the first reflective member or the second reflective member, the light being resonated between the first reflective member and the second reflective member. The resonator structure has at least two or more resonance spectral peaks at respective wavelengths in a visible light range with a wavelength of a maximum value relative luminosity being a border line and an emission output spectrum has at least two or more peaks at respective wavelengths based on the resonance spectral peaks.
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Citations
14 Claims
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1-9. -9. (canceled)
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10. A light-emitting element comprising:
- a first reflective member;
a second reflective member; and
a light-emitting layer provided between the first reflective member and the second reflective member, and including a resonator structure that transmits part of light by the first reflective member or the second reflective member, the light being resonated between the first reflective member and the second reflective member, the light-emitting element characterized in thatthe resonator structure has at least two or more resonance spectral peaks at respective wavelengths in a visible light range with a wavelength at which a relative luminosity takes a maximum value being a border line, an emission output spectrum has at least two or more peaks at respective wavelengths based on the resonance spectral peaks, the light-emitting element is a red light-emitting element, and the emission output spectrum has a primary peak whose central wavelength falls within a range of 620±
20 nm, and a secondary peak whose central wavelength falls within a range of 480±
20 nm and which has an emission intensity smaller than that of the primary peak. - View Dependent Claims (11, 12, 13)
- a first reflective member;
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14. A display device comprising:
- a first reflective member;
a second reflective member; and
a light-emitting layer provided between the first reflective member and the second reflective member, and including a number of resonator structures that transmit part of light by the first reflective member or the second reflective member, the light being resonated between the first reflective member and the second reflective member, the display device characterized in thatthe resonator structure has at least two or more resonance spectral peaks at respective wavelengths in a visible light range with a wavelength at which a relative luminosity takes a maximum value being a border line, an emission output spectrum has at least two or more peaks at respective wavelengths based on the resonance spectral peaks, the light-emitting element is a red light-emitting element, and the emission output spectrum has a primary peak whose central wavelength falls within a range of 620±
20 nm, and a secondary peak whose central wavelength falls within a range of 480±
20 nm and which has an emission intensity smaller than that of the primary peak.
- a first reflective member;
Specification