Display device and a method of manufacturing the display device
AssigneeSony Corporation
InventorsEisuke Matsuda, Reo Asaki
Life of this patent
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Abstract
A display device having a light-emitting element which has a lower electrode, an upper electrode, a functional layer, and a cavity in which light generated in the functional layer is resonated wherein the optical distance of the cavity portion in a first light-emitting element is made equal with the optical distance of the cavity portion in a second light-emitting element, and the optical distance of the cavity portion in the first light-emitting element is different from the optical distance of the cavity portion in a third light-emitting element.
Claims16
A display device having a light-emitting element, the light-emitting element having a lower electrode, an upper electrode, a functional layer, and a cavity portion in which light generated in the functional layer is resonated, in which a pixel is formed of a set of at least three light-emitting elements corresponding to different wavelength, wherein
- the optical distance of the cavity portion in a first light-emitting element is made equal with the optical distance of the cavity portion in a second light-emitting element, and the optical distance of the cavity portion in the first light-emitting element is made different from the optical distance of the cavity portion in a third light-emitting element.
A method of manufacturing a display device having a plurality of light-emitting elements each having a functional layer between an upper electrode and a lower electrode, and adapted to take out a light generated in the functional layer under cavity in a cavity portion, wherein
- a pixel is formed with a set of at least three light-emitting elements corresponding to different wavelengths, in which
- the optical distance of the cavity portion in a first light-emitting element of the pixel is made equal with the optical distance of the cavity portion in a second light-emitting element of the pixel, and
- the optical distance of the cavity portion in the first light-emitting element is made different from that of the optical distance of the cavity portion in a third light-emitting element.
A method of manufacturing a display device having a pixel comprising three resonance type light-emitting elements corresponding to the wavelengths for red, blue, and green, wherein the method includes the steps of:
- forming a lower electrode on a substrate,
- forming a transparent layer corresponding to red and a transparent layer corresponding to blue each at an identical height on the lower electrode and forming a transparent layer corresponding to green at a height different from the transparent layers corresponding to red and blue,
- forming a functional layer by successively laminating a plurality of light emitting units that emit lights at different wavelengths above the transparent layers corresponding to each of red, blue, and green, and
- forming an upper electrode above the functional layer.
Dependencies are inferred from the claim text.