Kuraray Co., Ltd.

Mitsubishi Electric Corporation

Daisuke Eguchi

Toshiyuki Ito

Tatsuya Daimon

Koji Hashimoto

Shoso Tsunekazu

A light-emitting display device includes: a light-emitting member; and a light-blocking layer-equipped fiber sheet that covers a light-emitting surface of the light-emitting member. The light-blocking layer-equipped fiber sheet includes a fiber sheet, and a light-blocking layer that is partially printed on at least one surface of the fiber sheet. The surface of the fiber sheet on which the light-blocking layer is formed has an arithmetic mean height Sa of 3 to 20 μm, as measured based on ISO 25178, and the fiber sheet has an apparent density of 0.5 g/cmor more.

Light-emitting display device, and a light-blocking layer-equipped fiber sheet for use in light-emitting display device

A light-emitting display sheet includes a first fiber base material layer and a surface material layer stacked on the first fiber base material layer. The first fiber base material layer includes a first surface facing the surface material layer, and a second surface opposite to the first surface. The light-emitting display sheet further includes a print portion having an outline and sandwiched between the first surface of the first fiber base material layer and the surface material layer.

Light-emitting display sheet, light-emitting display member, light-emitting display device, and method for producing light-emitting display member

A sensor switchconnected to a constant voltage Vc via a breeder resistorand dropper diodesandis connected to a microprocessorthat configures a wire abnormality detecting device, and the electric potential of the connection point between the dropper diodesandis inputted to the microprocessoras a switch logic signal Dvia a signal wireand a series resistor. The signal voltage level of the switch logic signal Dis inputted to the microprocessorvia an AD converter, and the microprocessorcooperates with a program memoryto perform a determination of whether or not the signal voltage is in an abnormal intermediate voltage state. However, during a transitional period when the switch logic signal is changing between high and low, mistaken determination is prevented by avoiding abnormality determination.

Growing community of inventors

Tokyo, Japan

Daisuke Eguchi