Abstract: A light guide plate includes: a depressed portion provided on an opposite side of a light exit surface from which light is emitted; a first direction changing portion which is provided inside the depressed portion and above a light emitting element in a direction oriented toward the light exit surface, the light emitting element being provided on the opposite side of the light exit surface, and which changes a direction of travel of at least a part of light of the light emitting element; and a second direction changing portion which is provided above the light emitting element and higher than the light exit surface and which changes a direction of travel of at least a part of light of the light emitting element.

Abstract: An ink for liquid droplet discharge includes particles formed of a material that emits upconversion light. An average particle diameter of the particles be 10 nm or more and 200 nm or less. A content of the particles in the ink for liquid droplet discharge be 0.1% by mass or more and 20% by mass or less. The ink for liquid droplet discharge be colorless. The particles are formed of a material containing an inorganic substance.

Abstract: An ink for forming a functional layer includes a first component that contains at least one kind of aromatic solvent of which a boiling point is higher than or equal to 250° C. and lower than or equal to 350° C., a second component that contains at least one kind of aliphatic solvent of which a boiling point is higher than or equal to 200° C., and a third component for forming a positive hole injection layer, in which a solubility of the third component in the first component is higher than the solubility of the third component in the second component, a mixing ratio of the second component is 30 vol %, the boiling point of the first component is higher than the boiling point of the second component, and a difference between the boiling points thereof is higher than or equal to 30° C.

Abstract: An ink composition contains a solid component, a hydrophobic solvent A, a hydrophilic solvent B, and an amphiphilic solvent C, wherein the solvent C is an alcohol having 8 or more carbon atoms.

Abstract: A functional layer forming composition is capable of obtaining a stable film forming property when a liquid phase process is used. A method produces a functional layer forming composition. A method produces an organic EL element. An organic EL device and an electronic apparatus are also described. A functional layer forming composition is used when at least one layer in a functional layer containing an organic material is formed by a liquid phase process, and is characterized in that the composition includes a solid component for forming a functional layer, a first aromatic solvent having an electron withdrawing group, and a second aromatic solvent having an electron donating group, and the boiling point of the second aromatic solvent is higher than the boiling point of the first aromatic solvent.

Abstract: A functional layer forming composition is capable of obtaining a stable film forming property when a liquid phase process is used. A method produces a functional layer forming composition. A method produces an organic EL element. An organic EL device and an electronic apparatus are also described. A functional layer forming composition is used when at least one layer in a functional layer containing an organic material is formed by a liquid phase process, and is characterized in that the composition includes a solid component for forming a functional layer, a first aromatic solvent having an electron withdrawing group, and a second aromatic solvent having an electron donating group, and the boiling point of the second aromatic solvent is higher than the boiling point of the first aromatic solvent.

Abstract: A functional layer forming composition is capable of obtaining a stable film forming property when a liquid phase process is used. A method produces a functional layer forming composition. A method produces an organic EL element. An organic EL device and an electronic apparatus are also described. A functional layer forming composition is used when at least one layer in a functional layer containing an organic material is formed by a liquid phase process, and is characterized in that the composition includes a solid component for forming a functional layer, a first aromatic solvent having an electron withdrawing group, and a second aromatic solvent having an electron donating group, and the boiling point of the second aromatic solvent is higher than the boiling point of the first aromatic solvent.

Abstract: An ink composition includes a first component which is a hydrophilic solvent, a second component which is a hydrophobic solvent, a third component which is an amphiphilic solvent, and a fourth component which includes a solute or a dispersing element, and when the third component evaporates, the ink composition is separated into a phase which mainly includes the first component and a phase which mainly includes the second component.

Abstract: A film-forming ink includes a film-forming material and a liquid medium in which the film-forming material is dissolved or dispersed. The liquid medium contains a first component which has a viscosity of less than 20 cp and a second component which has a boiling point at an atmospheric pressure within a range of ±30° C. relative to the boiling point at an atmospheric pressure of the first component and has a viscosity of 20 cp or more, and the second component is contained in an amount of 20 parts by weight or more and 500 parts by weight or less with respect to 100 parts by weight of the first component.

Abstract: To provide a film-forming ink and a film formation method, capable of making the dimensional accuracy of a film to be formed excellent by increasing the apparent liquid droplet amount of a film-forming ink to be supplied as a liquid droplet into an opening part included in a partition wall, and also to provide a device with a film and an electronic apparatus, each of which has a film formed using the film formation method. A film-forming ink of the invention includes a film-forming material and a liquid medium in which the film-forming material is dissolved or dispersed, wherein the liquid medium contains a first component which has a boiling point at an atmospheric pressure of 200° C. or higher and a second component which has a boiling point at an atmospheric pressure lower than the first component.

Abstract: An ink composition contains a solid component, a hydrophobic solvent A, a hydrophilic solvent B, and an amphiphilic solvent C, wherein the solvent C is an alcohol having 8 or more carbon atoms.

Abstract: The ink for functional layer formation includes a first component that is a solute; and a second component with a boiling point of 280° C. or higher and 350° C. or lower, is a good solvent, and is at least one type selected from a group consisting of an aromatic hydrocarbon including at least two aromatic rings, aromatic glycol ether, aliphatic glycol ether, aliphatic acetate, and aliphatic ester.

Abstract: A method of manufacturing an ink for forming a functional layer includes: dispersing a mixture in which a low molecular material and a high molecular material are mixed in a poor solvent; and dissolving the mixture by adding a good solvent to the poor solvent in which the mixture is dispersed, in which a volume ratio of the poor solvent is from 10% to 70% with respect to the total volume in which the good solvent is added to the poor solvent and the poor solvent and the good solvent can be mixed.

Abstract: A light-emitting element includes an anode, a cathode, a hole transporting layer provided between the anode and cathode, a light-emitting layer provided in contact with the hole transporting layer between the anode and cathode, where the surface of the light-emitting layer side of the hole transporting layer is formed in a shape having a part in which the distance with the reference surface along the anode changes in a continuous or step-wise manner, and the surface of the opposite side to the hole transporting layer of the light-emitting layer is formed so as to have the same shape as the surface of the light-emitting layer of the hole transporting layer.

Abstract: A function layer ink used for forming a function layer by a liquid coating process contains a function layer material containing a macromolecular material or a low-molecular-weight material, and a mixed solvent containing solvent A and solvent B. Solvent A has a viscosity in the range of 0.01 to 0.05 Pa·s, and solvent B has a viscosity of less than 0.01 Pa·s and a lower boiling point than solvent A. The mixed solvent has a viscosity of less than 0.02 Pa·s and a boiling point in the range of 200 to 350° C., and contains 0.1% to 10% by weight of solvent A.

Abstract: An organic EL element with a functional layer including at least a hole injection layer, a hole transport layer, and a luminescence layer laminated from a pixel electrode side in order between a pixel electrode as an anode and a counter electrode as a cathode, and a method of manufacturing the organic EL element has a forming process by applying a solution including a low molecular material and a high molecular material to at least one layer among the hole injection layer, the hole transport layer, and luminescence layer, in which the molecular weight of low molecular material is 10,000 or less and the molecular weight of high molecular material is 10,000 to 300,000, and in which a mixing ratio of low molecular material is 10 wt % to 90 wt % with respect to the weight of low molecular material and high molecular material included in the solution.

Abstract: A film-forming ink according to an embodiment of the invention includes a film-forming material; and a liquid medium which dissolves or disperses the film-forming material, in which the liquid medium contains an ether compound represented by Formula (I).

Abstract: A light-emitting element includes an anode, a cathode, a hole transporting layer provided between the anode and cathode, a light-emitting layer provided in contact with the hole transporting layer between the anode and cathode, where the surface of the light-emitting layer side of the hole transporting layer is formed in a shape having a part in which the distance with the reference surface along the anode changes in a continuous or step-wise manner, and the surface of the opposite side to the hole transporting layer of the light-emitting layer is formed so as to have the same shape as the surface of the light-emitting layer of the hole transporting layer.

Abstract: The ink for functional layer formation includes a first component that is a solute; and a second component with a boiling point of 280° C. or higher and 350° C. or lower, is a good solvent, and is at least one type selected from a group consisting of an aromatic hydrocarbon including at least two aromatic rings, aromatic glycol ether, aliphatic glycol ether, aliphatic acetate, and aliphatic ester.

Abstract: An organic EL element manufacturing method includes coating ink which contains a functional layer forming material in a coating region which is configured by a pixel electrode and a partition wall which surrounds a periphery of the pixel electrode, where, in the coating ink, the ink is coated so as to satisfy the following expressions (1) to (3) in a case where a contact angle of the ink with respect to the side surface of the partition wall is set to ?bc and a contact angle with respect to a surface of the coating region where the ink is coated is set to ?lc.