Light Emitting Display

A light emitting display provided with a plurality of pixels, each pixel having, in this order:

• a reflective layer;
• a first electrode;
• a light-emitting thin-film layer;
• a second electrode;
• an optical compensation layer;
• a circularly polarized light reflective layer;
• a quarter-wave plate;
• and
• a polarizer, wherein
• the optical compensation layer is provided between the second electrode and the polarizer,
• the display has at least a blue pixel, a red pixel and a green pixel, and
• each of the circularly polarized light reflective layers is patterned for each of the pixels and has an almost constant product of a thickness of the circularly polarized light reflective layer and a value obtained by subtracting a refractive index in the in-plane direction perpendicular to the thickness direction from a refractive index in the thickness direction.

A light emitting display provided with a plurality of pixels, each pixel having, in this order:

• a reflective layer;
• a first electrode;
• a light-emitting thin-film layer;
• a second electrode;
• an optical compensation layer;
• a circularly polarized light reflective layer;
• a quarter-wave plate;
• and
• a polarizer, wherein
• the optical compensation layer is provided between the second electrode and the polarizer,
• the display has at least a blue pixel, a red pixel and a green pixel,
• both λ0 and λImax exist within the wavelength range of light radiated from the light-emitting thin-film layer but are different from each other,
• λ0 is the central wavelength in the principal reflection wavelength range of light reflected by the circularly polarized light reflective layer, and
• λImax is the wavelength at which an intensity of interference, which occurs between the light radiated from the light-emitting thin-film layer and the layers that comprise the pixel, attains a maximum, all at a viewing angle of 0°.

A light emitting display provided with a plurality of pixels, each pixel having, in this order:

• a reflective layer;
• a first electrode;
• a light-emitting thin-film layer;
• a second electrode;
• an optical compensation layer;
• a circularly polarized light reflective layer;
• a quarter-wave plate;
• and
• a polarizer, wherein
• the optical compensation layer is provided between the second electrode and the polarizer,
• the display has at least a blue pixel, a red pixel and a green pixel,
• one of the following relationships is satisfied:
• λ0>λEmax>λImax or
• λ0<λEmax<λImax
• λ0 is the central wavelength in the principal reflection wavelength range of light reflected by the circularly polarized light reflective layer,
• λEmax is the peak wavelength of light radiated from the light-emitting thin-film layer, and λImax is the wavelength at which an intensity of interference, which occurs between the light radiated from the light-emitting thin-film layer and the layers that comprise the pixel, attains a maximum, all at a viewing angle of 0°.

A light emitting display provided with a plurality of pixels, each pixel having, in this order:

• a reflective layer;
• a first electrode;
• a light-emitting thin-film layer;
• a second electrode;
• an optical compensation layer;
• a circularly polarized light reflective layer;
• a quarter-wave plate;
• and
• a polarizer, wherein
• the optical compensation layer is provided between the second electrode and the polarizer,
• the display has at least a blue pixel, a red pixel and a green pixel,
• both λ0 and λImax exist within the wavelength range of light radiated from the light-emitting thin-film layer but are different from each other,
• λ0 is the central wavelength in the principal reflection wavelength range of light reflected by the circularly polarized light reflective layer, and
• λImax is the wavelength at which intensity of interference to light radiated from the light-emitting thin-film layer attains a maximum, all at viewing angle of 0°.

A light emitting display provided with a plurality of pixels, each pixel having, in this order:

• a reflective layer;
• a first electrode;
• a light-emitting thin-film layer;
• a second electrode;
• an optical compensation layer;
• a circularly polarized light reflective layer;
• a quarter-wave plate;
• and
• a polarizer, wherein
• the optical compensation layer is provided between the second electrode and the polarizer,
• the display has at least a blue pixel, a red pixel and a green pixel,
• one of the following relationships is satisfied:
• λ0>λEmax>λImax or
• λ0<λEmax<λImax
• λ0 is the central wavelength in the principal reflection wavelength range of light reflected by the circularly polarized light reflective layer,
• λEmax is the peak wavelength of light radiated from the light-emitting thin-film layer, and
• λImax is the wavelength at which intensity of interference to light radiated from the light-emitting thin-film layer attains a maximum, all at viewing angle of 0°.

A light emitting display provided with a plurality of pixels, each pixel having, in this order:

• a reflective layer;
• a first electrode;
• a light-emitting thin-film layer;
• a second electrode;
• an optical compensation layer;
• a circularly polarized light reflective layer;
• a quarter-wave plate;
• and
• a polarizer, wherein
• the optical compensation layer is provided between the second electrode and the polarizer,
• the display has at least a blue pixel, a red pixel and a green pixel, and
• the circularly polarized light reflective layer has only a single principal wavelength range which selectively reflects a blue wavelength light and wherein the single wavelength range of the principal reflection of the circularly polarized light reflective layer is only in a wavelength range corresponding to blue having a wavelength of 510 nm or less for each of the blue pixel, the red pixel and the green pixel.