Abstract: A method for manufacturing methyltetrahydrophthalic anhydride is provided, which includes steps as follows. Maleic anhydride is added into a reactor. Piperylene is added into the reactor, so that the piperylene and the maleic anhydride undergo a first addition reaction. When a conversion rate of the maleic anhydride is more than 25%, the first addition reaction is completed. Isoprene is added into the reactor, so that the isoprene and the maleic anhydride undergo a second addition reaction to obtain a methyltetrahydrophthalic anhydride product. The methyltetrahydrophthalic anhydride product contains 3-methyltetrahydrophthalic anhydride and 4-methyltetrahydrophthalic anhydride.

Abstract: A method for manufacturing a low-viscosity hardener is provided. The method includes the followings steps: providing a hardener crude product; and subjecting the hardener crude product and an alkaline catalyst to an isomerization reaction, so as to obtain the low-viscosity hardener. The hardener crude product contains 3-methyltetrahydrophthalic anhydride and 4-methyltetrahydrophthalic anhydride, and a weight ratio of the 3-methyltetrahydrophthalic anhydride to the 4-methyltetrahydrophthalic anhydride ranges from 7:3 to 3:7. A viscosity of the low-viscosity hardener ranges from 30 cps to 50 cps.

Abstract: Organic metal compounds, and organic light-emitting devices employing the same are provided. The organic metal compound has a chemical structure represented by Formula (I) or Formula (II): wherein, R1 is hydrogen, C1-12 alkyl, C1-12 alkoxy, amine, C2-6 alkenyl, C2-6 alkynyl, C5-10 cycloalkyl, C3-12 heteroaryl, or C6-12 aryl; R2, R3, R4, and R5 can be hydrogen, halogen, C1-12 alkyl, C1-12 alkoxy, C1-12 fluoroalkyl; R6 and R7 are independent and can be C1-6 alkyl, or phenyl; R8, R9, R10, R11, R12, R13, R14, and R15 can be hydrogen, halogen, C1-12 alkyl, C1-12 fluoroalkyl, or two adjacent groups of R2, R3, R4, R5, R8, R9, R10, R11, R12, R13, R14 and R15 are optionally combined with the carbon atoms which they are attached to, to form a cycloalkyl group, or aryl; m is 1 or 2; and, n is 0 or 1.

Abstract: The present disclosure provides a top emitting organic electroluminescent device including a first scattering layer, and a first electrode, at least one organic material layer, a second electrode and a second scattering layer formed on the first scattering layer sequentially. The first scattering layer contains a plurality of micro-particles that are 10 to 90 wt % of the first scattering layer.

Abstract: Organic metal compounds, and organic light-emitting devices employing the same are provided. The organic metal compound has a chemical structure represented by formula (I): wherein each R1 is independent and can be hydrogen, C1-12 alkyl group, C1-12 alkoxy group, amine, C2-6 alkenyl group, C2-6 alkynyl group, C5-10 cycloalkyl group, C3-12 heteroaryl group, or C6-12 aryl group; R2, R3, R4, and R5 are independent and can be hydrogen, halogen, C1-12 alkyl group, C1-12 fluoroalkyl group, or two adjacent groups of R2, R3, R4, and R5 are optionally combined with the carbon atoms which they are attached to, to form a cycloalkyl group, or aryl group; R6 and R7 are independent and can be C1-6 alkyl group, or phenyl group; and, n is 0 or 1.

Abstract: Organic metal compounds, and organic light-emitting devices employing the same are provided. The organic metal compound has a chemical structure represented by Formula (I) or Formula (II): wherein, R1 is hydrogen, C1-12 alkyl, C1-12 alkoxy, amine, C2-6 alkenyl, C2-6 alkynyl, C5-10 cycloalkyl, C3-12 heteroaryl, or C6-12 aryl; R2, R3, R4, and R5 can be hydrogen, halogen, C1-12 alkyl, C1-12 alkoxy, C1-12 fluoroalkyl; R6 and R7 are independent and can be C1-6 alkyl, or phenyl; R8, R9, R10, R11, R12, R13, R14, and R15 can be hydrogen, halogen, C1-12 alkyl, C1-12 fluoroalkyl, or two adjacent groups of R2, R3, R4, R5, R8, R9, R10, R11, R12, R13, R14 and R15 are optionally combined with the carbon atoms which they are attached to, to form a cycloalkyl group, or aryl; m is 1 or 2; and, n is 0 or 1.

Abstract: The present disclosure provides a top emitting organic electroluminescent device including a first scattering layer, and a first electrode, at least one organic material layer, a second electrode and a second scattering layer formed on the first scattering layer sequentially. The first scattering layer contains a plurality of micro-particles that are 10 to 90 wt % of the first scattering layer.

Abstract: A substrate structure applied in flexible electrical devices is provided. The substrate structure includes a carrier, a release layer overlying the carrier with a first area and a flexible substrate overlying the release layer and the carrier with a second area, wherein the second area is larger than the first area and the flexible substrate has a greater adhesion force than that of the release layer to the carrier. The invention also provides a method for fabricating the substrate structure.

Abstract: An organic electroluminescent device. The organic electroluminescent device comprises a first barrier layer disposed on a substrate; organic electroluminescent elements disposed over the first barrier layer and encapsulated with a second barrier layer; and a getter layer disposed between the first and second barrier layers. Each of the first and second barrier layers includes an organic layer and an inorganic layer covering the top and sidewall surfaces of the organic layer, thus providing stacked inorganic sidewalls to hinder moisture and oxygen.

Abstract: A substrate structure applied in flexible electrical devices is provided. The substrate structure includes a carrier, a release layer overlying the carrier with a first area and a flexible substrate overlying the release layer and the carrier with a second area, wherein the second area is larger than the first area and the flexible substrate has a greater adhesion force than that of the release layer to the carrier. The invention also provides a method for fabricating the substrate structure.

Abstract: An organic electroluminescent device. The organic electroluminescent device comprises a first barrier layer disposed on a substrate; organic electroluminescent elements disposed over the first barrier layer and encapsulated with a second barrier layer; and a getter layer disposed between the first and second barrier layers. Each of the first and second barrier layers includes an organic layer and an inorganic layer covering the top and sidewall surfaces of the organic layer, thus providing stacked inorganic sidewalls to hinder moisture and oxygen.