Japan Display Inc.

Other

Hitachi Displays, Ltd.

Panasonic Liquid Crystal Display Co., Ltd.

Hirotsugu Sakamoto

Takeshi Ookawara

Toshihiro Sato

Kouhei Takahashi

Shinichi Kato

Hiroshi Oooka

Masamitsu Furuie

Tomoki Nakamura

Kenichi Watanabe

Yuko Matsumoto

Hiroshi Sasaki

Masato Ito

Go Uchida

Masaaki Okunaka

Noriharu Matsudate

Masakazu Gunji

Mamoru Tsuzurahara

Syoji Shirai

Syouji Shirai

OLED display panel is provided which can control the problem of shedding even high definition panels. Metal wiringwhich conducts with an earth line of a flexible printed substrateprovided on substrateA display areacomprised from a plurality of OLED elements is provided at the center of the substrateand four low resistance metal filmsare provided along each of four edges of the display areaon a surface of insulation filmsat the periphery of the display areaAmong these, one low resistance metal filmconducts with the metal wiringvia a contact

Display device

An OLED display panel is provided which can control the problem of shedding even in high definition panels. Metal wiringwhich conducts with an earth line of a flexible printed substrateis provided on a substrate. A display areacomprised from a plurality of OLED elements is provided at the center of the substrateand four low resistance metal filmsare provided along each of four edges of the display areaon a surface of insulation filmsat the periphery of the display area. Among these, one low resistance metal filmconducts with the metal wiringvia a contact

An OLED display panel is provided which can control the problem of shedding even in high definition panels. Metal wiringwhich conducts with an earth line of a flexible printed substrateis provided on a substrate. A display areacomprised from a plurality of OLED elements is provided at the center of the substrateand four low resistance metal filmsare provided along each of four edges of the display areaon a surface of insulation filmsat the periphery of the display area. Among these, one low resistance metal filmconducts with the metal wiringvia a

OLED display panel and manufacturing method thereof

In an organic EL display device, a resistance of a cathode electrode of OLEDs is substantially reduced while maintaining a higher opening ratio of pixels as an entire display area. A reference power supply line is formed on a glass substrate, and receives a reference potential for driving the OLED. The OLED is formed on the glass substrate where the reference power supply line is formed, and has a structure in which a lower electrode, an organic material layer, and an upper electrode that is a cathode electrode common to plural pixels are laminated on each other in the order from the bottom. In some of the plural pixels, a cathode contact that penetrates through the organic material layer, and electrically connects the upper electrode to the reference power supply line is formed within an opening area corresponding to a W sub-pixel.

Organic electroluminescent display device with an upper electrode in contact with a lower electrode

An organic EL display device includes a first organic layer that is arranged between lower electrodes and an upper electrode, and formed of a plurality of layers including a light emitting layer, a laminated auxiliary line that has a first auxiliary line and a second auxiliary line, and laminated on each other in order, and extend in one direction between two of pixels adjoining each other, and a second organic layer that is formed of a plurality of the same layers as the first organic layer, and arranged in contact with the first auxiliary line in a connection hole opened in the second auxiliary line so as to come out of contact with the first organic layer, in which the upper electrode is arranged in contact with the first auxiliary line around the second organic layer so as to embed the connection hole.

Organic EL display device and method for manufacturing the organic EL display device

A method of manufacturing a display device includes preparing a multilayout display panel which has a structure of a first substrate and a second substrate which are bonded to each other and is able to be cut into a plurality of products, scribing the first substrate, bending and breaking the scribed first substrate, performing thinning on the second substrate and the broken first substrate by chemical polishing, scribing the second substrate which is subjected to chemical polishing, and bending and breaking the scribed second substrate.

Method of manufacturing a display device

Organic EL display device

A method of manufacturing an organic electroluminescent display device of the invention includes the steps of: forming, on a mother substrate including display regions and terminal forming regions, an upper electrode in each of the display regions; and cutting the mother substrate along each border between the display regions to thereby divide the mother substrate into a plurality of individual pieces. The step of forming the upper electrode includes the step of depositing a material of the upper electrode in the display regions using a mask including a frame-shaped frame and stripe-shaped shielding portions that cover regions corresponding to the terminal forming regions. The shielding portion is fixed in a state where the shielding portion spans between facing sides of the frame and tension in one direction is applied, and extends only in the one direction inside an inner periphery of the frame in a plan view.

Method of manufacturing organic electroluminescent display device

A display device which can be produced at reduced material cost and has a smaller peripheral frame area, and a method for producing the same, are provided. A display device includes a first substrate including a display area, which includes an organic EL light emitting layer; a second substrate located so as to face the first substrate; a dam member located along, and outside with respect to, a part of an outer edge of the display area, the dam member joining the first substrate and the second substrate to each other; and a filler filling a space between the first substrate and the second substrate while being in contact with the dam member.

Display device and method for producing the same

An organic electroluminescence display device wherein the wiring width is made large enough to secure a current capacity for the power supply line and at the same time high luminance is achieved by increasing the aperture rate is to be realized. The device has lower electrodes formed over the main face of a transparent substrate, a plurality of organic electroluminescence elements each stacked over one or another of the lower electrodes and emitting light of a prescribed color, and an upper electrode formed as a film covering the plurality of organic electroluminescence layers in common, and this upper electrode is reflective and the luminescence from the organic electroluminescence elements is emitted from the transparent substrate side. The device further has: a pixel circuit including, over the inner face of the transparent substrate, a plurality of signal lines and a plurality of scanning lines arranged crossing each other and an organic electroluminescence layer in each of pixel areas surrounded by the signal lines and the scanning lines; and a power supply line for supplying a current to the organic electroluminescence layer, wherein the pixel line is arranged across the pixel areas.

Growing community of inventors

Tokyo, Japan

Hirotsugu Sakamoto