Abstract:
PROBLEM TO BE SOLVED: To provide: an organic light emitting element having an improved aperture ratio and capable of suppressing disconnection of an organic layer and a second electrode; and a display device including the organic light emitting element.SOLUTION: An organic light emitting element includes: a first electrode and a second electrode; an organic layer between the first electrode and the second electrode, including a light emitting layer; and an insulating film covering a circumference of the first electrode from a surface to a side surface thereof, having an internal wall surface which is in contact with the organic layer, and having at least one corner section in the internal wall surface with a ridge line in parallel with the surface of the first electrode.
Abstract:
PROBLEM TO BE SOLVED: To provide a display device which suppresses color mixture caused by the diffraction of light passing through an adjacent color filter even when the sizes of light emitting elements are small, and to provide an electronic apparatus including the display device.SOLUTION: A display device includes: multiple light emitting elements; and a color filter having a transparent color region facing the multiple light emitting elements and a semi-transparent region provided at a part of the transparent color region.
Abstract:
PROBLEM TO BE SOLVED: To provide a light-emitting element which reduces a drive voltage without generating short-circuit between a first electrode and a second electrode. SOLUTION: The light-emitting element is formed by successively laminating the first electrode 121, a conductor film 41, an organic layer 123 having a light-emitting layer, a semi-transmissive reflective film 40, a resistive layer 50, and a second electrode 122. The conductor film 41 transmits a portion of light from the light-emitting layer therethrough, the first electrode 121 reflects the light transmitted through the conductor film 41, and the second electrode 122 transmits the light transmitted through the semi-transmissive reflective film 40 therethrough. An average film thickness of the conductor film 41 on the first electrode 121 ranges from 1 to 6 nm, and the average film thickness of the semi-transmissive reflective film 40 on the organic layer 123 also ranges from 1 to 6 nm. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a light-emitting element having configuration and structure which prevent a first electrode and a second electrode from short-circuit even though foreign particle or projection exist on the first electrode. SOLUTION: The light-emitting element includes: a first electrode 21; an organic layer 23 provided with a light-emitting layer which consists of organic light-emitting material; half-transmission reflecting film 40; a resistive layer 50; and a second electrode 22, these being laminated sequentially. The first electrode 21 reflects light from the light-emitting layer. The second electrode 22 transmits light which penetrate the half-transmission reflecting film 40. Average thickness of the half transmission reflecting film 40 on the organic layer 23 is 1 to 6 nm. COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide an organic EL display device capable of surely preventing deterioration of a part of an upper electrode which connects a part of the upper electrode on a laminated structural body with a part of the upper electrode on an auxiliary wiring. SOLUTION: The organic EL display device includes a plurality of organic EL elements each equipped with (A) a lower electrode 21, (B) an insulation layer 24 with an opening 26, (C) an auxiliary wiring 45, (D) a laminated structural body 43, and (E) an upper electrode. A part of the upper electrode 42 placed upward of the auxiliary wiring 45 comprises a charge injection layer and a charge transport layer from below, and is electrically connected with the auxiliary wiring 45. The laminated structural body 43 includes a part in contact with an auxiliary wiring 25. The insulation layer 24 and the auxiliary wirings are provided commonly for the plurality of organic EL elements. The upper electrode covers an entire surface of the auxiliary wirings and the laminated structural body structuring the plurality of organic EL elements. COPYRIGHT: (C)2009,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a display device which has a resonator structure, and is structured to further improve light extraction efficiency. SOLUTION: The display device includes: (A) a plurality of light-emitting elements 10 which is composed of a lamination consisting of a first electrode 21, an organic layer 23, and a second electrode 22, and causes light emitted from a light-emitting layer 23 to resonate between the first electrode 21 and the second electrode 22 to emit light from the second electrode 22; and (B) a transparent upper substrate 33 fixed above the second electrode 22. When the distance from the maximum emission position of the light-emitting layer 23 to a first interface is L 1 , an optical distance is OL 1 , the distance from the maximum emission position of the light-emitting layer 23 to a second interface is L 2 , an optical distance is OL 2 , and m 1 and m 2 are integers, these satisfy a given equation. A light reflecting portion 40 is formed on the transparent upper substrate 33. COPYRIGHT: (C)2009,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a display device and manufacturing method of the same capable of forming an auxiliary wiring connected to an upper electrode of an organic EL element without complicating layered structure nor increasing the number of process. SOLUTION: The display device 1' is composed of a plurality of lower electrodes 9 patterned on respective pixels on a substrate, auxiliary wiring 9a composed of a layer same with that of the lower electrode 9 insulated therefrom, insulation films 17 on which pixel openings A exposing central part of the lower electrode 9a and connection holes 17a reaching the auxiliary wiring 9a, formed on the substrate 3, organic layers 11B, 11G, 11R covering the bottom part of the pixel opening A, patterned in such a state that a part of end part overlaps with each other between adjacent pixels, and the upper electrode 13 connected to the auxiliary wiring 17 between the organic layers 11B, 11G, 11R through the connection hole 17a. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a light emitting element which improves image quality by reducing reflection of external light or an outside view. SOLUTION: This light emitting element has a resonator structure for resonating light emitted from a light-emitting layer 13B between a first end P1 and a second end P2 and extracting it from the side of the second end P2. The light emitting element is structured such that the intensities and phases of reflected lights h1, h2 of the external light on the side of the first end P1 and on the side of the second end P2 are adjusted so that a reflection coefficient of the external light H at a resonance frequency incident from the second end P2 side is set not greater than 20%, and more specifically, adjusted so that the intensities are set almost identical to each other and the phases are reversed from each other. The intensities of the reflected lights h1, h2 are adjusted by materials and thicknesses of a first electrode 12 and a second electrode 14. The phases of the reflected lights h1, h2 are adjusted by an optical distance L between the first end P1 and the second end P2. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a display device capable of displaying in high definition and excellent color reproducibility by preventing the leak of light from a gap between light-emitting elements. SOLUTION: In the display device 1 formed with element layers 23 with a plurality of light-emitting elements EL pinching functional layers 27 having light-emitting layers formed in alignment between a light extraction electrode 29 and patterned counter electrodes 25, the light extraction electrode 29 has semipermeable reflecting properties, the counter electrodes 25 have light transmission properties, and a light-reflecting layer 13 formed by arranging reflecting patterns 13a with almost the same shapes as the counter electrodes 25 is formed outside the counter electrodes 25. Further, emission light h generated at the light-emitting element EL resonates between the light extraction electrode 29 and the reflecting patterns 13a and is taken out of the side of the light extraction electrode 29. Especially, a reflection preventing layer 9 is formed outside the light-reflecting layer 13. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a self luminance display device which can raise a peak spectral strength of each luminous color without establishing an optical distance of a resonator of each color corresponding to red, green and blue. SOLUTION: A display device is provided with a plurality of display elements in which an organic layer containing a luminous layer is held between a first electrode of an optical reflecting material and a second electrode, and either of a second electrode or the organic layer is composed to become a resonance part of the resonator structure which resonates a light generated at the luminous layer, and is composed to emit lights of red, green and blue. When a phase shift caused when a light generated at the luminous layer is reflected at both sides of the resonator is Φradian, an optical distance of the resonator is L', a peak spectral length of green out of lights generated from the luminous layer is λ, out of integers m satisfying a formula (2L)/λ+ϕ/(2π)=m (m is an integer), L' shall be set so that a formula (2L')/λ+ϕ/(2π)=m1+4 in which 4 is added on an integer m1 where L becomes a positive minimum value. COPYRIGHT: (C)2007,JPO&INPIT