Abstract: An opto-electric hybrid board that achieves sufficiently lower noise for signal transmission, is less prone to cause warpage during the mounting of various elements, and has high-speed communication properties, an opto-electric hybrid board ? including: an electric circuit board 1; an optical waveguide 2 formed in a stacked manner on a first surface 1a of the electric circuit board 1; and a reinforcement plate 3 for reinforcing the electric circuit board 1, wherein a surface of the optical waveguide 2 on the opposite side from a surface thereof contacting the first surface 1a of the electric circuit board 1 is covered with the reinforcement plate 3.

Abstract: Provided is a photoelectric conversion module plug that includes a photoelectric hybrid board, a circuit board, an optical connector, and a plug case that houses them. At least a part of the photoelectric hybrid board faces the circuit board. The plug case has a thickness T2 in a facing direction between the photoelectric hybrid board and the circuit board. The ratio of the thickness T1 of the optical connector with respect to the thickness T2 of the plug case is 30% or more. The plug case has side walls having uneven region portions respectively and at least a part of the optical connector is located between the uneven region portions. An optical cable according to the present invention includes the module plugs and an optical cable that optically connects between these module plugs.

Abstract: An opto-electric composite transmission module includes a printed wiring board, an electrical connector provided on the printed wiring board, and an opto-electric hybrid board which is electrically connected to the printed wiring board via the electrical connector. The opto-electric hybrid board has a long shape. The opto-electric hybrid board includes an opto-electric conversion portion including a flexible wiring board, a metal support layer, and an optical waveguide film in order in a thickness direction, and an electrical connection portion disposed in one end portion in a longitudinal direction of the opto-electric hybrid board and including the flexible wiring board, and the metal support layer and/or the optical waveguide film. The electrical connection portion is inserted into the electrical connector.

Abstract: A carbon electrode includes a substrate, and a conductive carbon layer disposed at an upper side of the substrate and having an sp2 bond and an sp3 bond. On an upper surface of the conductive carbon layer, the concentration ratio of oxygen to carbon is 0.07 or more. The ratio of a number of sp3 bonded carbon atoms to the sum of a number of sp2 bonded carbon atoms and the number of sp3 bonded carbon atoms is 0.35 or more.

Abstract: An electrode film includes a flexible substrate, a functional layer disposed at one side in a thickness direction of the flexible substrate, and an electrically conductive carbon layer disposed at one side in the thickness direction of the functional layer and having an sp2 bond and an sp3 bond.

Abstract: Provided is an organic EL display apparatus which is excellent in bending resistance, and in which the occurrence of warping due to a change in its environment is suppressed. The organic EL display apparatus of the present invention includes: an organic EL panel; a first optical laminate arranged on one side of the organic EL panel; and a second optical laminate arranged on another side of the organic EL panel, wherein the first optical laminate has a thickness of 300 ?m or less, wherein the second optical laminate has a thickness of 300 ?m or less, wherein the first optical laminate has an equilibrium moisture content of 2.50 or less, and wherein the second optical laminate has an equilibrium moisture content of 2.5% or less.