Hitachi Displays, Ltd.

Keiji Takanosu

Hiroyasu Matsuura

Eiji Matsuzaki

Shingo Ishihara

Koji Hara

Shinji Sekiguchi

Yasushi Sano

The present invention provides an organic EL display panel manufacturing method which is capable of forming a desired organic film or the like with high accuracy without imparting damages to a substrate and an organic film and an organic EL display panel which is manufactured by the method. An opening portion which corresponds to a panel pattern region of a display panel is formed in a vapor deposition mask. The opening portion has a bottom surface in the inside of a recessed surface which is retracted from a surface on which the vapor deposition mask is brought into contact with the substrate. The opening portion of the vapor deposition mask is spaced apart from the substrate with a predetermined gap space and evaporated particles from an evaporating source are vapor-deposited to the substrate through the opening portion.

Method of manufacturing the organic electroluminescent display and organic electroluminescent display manufactured by the method

The present invention relates to a method of manufacturing a transflective liquid crystal display device including a color filter substrate having a plurality of pixels, each including a reflective display part and a transmissive display part, and retardation plates each built in areas on a principal surface of the color filter substrate opposed to a liquid crystal layer, which correspond to the reflective display parts. The manufacturing method is characterized by including in the following order: a first step of applying a photosetting resin composition on the principal surface of the color filter; a second step of partially curing areas of a photosetting resin film, which correspond to the reflective display parts, respectively, by light exposure through a mask; a third step of removing uncured portions of the photosetting resin film remaining in the second step by development; a fourth step of selectively forming unevenness in areas of a principal surface of the cured photosetting resin film, which correspond to the reflective display parts; and a fifth step of applying a material of the retardation plate onto the photosetting resin film having the unevenness, to form the retardation plates in the respective areas corresponding to the reflective display parts, by anchoring energy of a part having the unevenness, for the material of the retardation plate.

Liquid crystal display device and manufacturing method thereof

The organic electroluminescence display apparatus of the present invention comprises a first and second substrates, the former being coated with banks for separating pixels, a lower electrode, organic light-emitting layer and upper electrode of a transparent material in this order, and the latter being coated with a color filter and electroconductive shadow pattern, wherein the organic light-emitting layer surrounded by the banks for separating pixels faces the color filter, and the first and second substrates face each other in such a way that the upper electrode over the banks for separating pixels is electrically connected to the electroconductive shadow pattern. This structure connects at least one of the upper electrode and electroconductive shadow pattern to a power supply point, to control ununiform emitted light brightness which may result from voltage drop at the upper transparent electrode. Moreover, the organic light-emitting layer can be formed without a vapor deposition mask having a precise aperture pattern, to efficiently produce the organic EL display apparatus.

Growing community of inventors

Yokohama, Japan

Keiji Takanosu