Japan Display Inc.

Hitachi Displays, Ltd.

Panasonic Liquid Crystal Display Co., Ltd.

Hiroshi Oooka

Toshihiro Sato

Takeshi Ookawara

Hirotsugu Sakamoto

Masamitsu Furuie

Kouhei Takahashi

Mitsuhide Miyamoto

Yuko Matsumoto

Masato Ito

Shinichi Kato

Shinji Sekiguchi

Masahiko Suzuki

Provided is an organic electroluminescence display device. The organic electroluminescence display device includes a bank that is provided so as to surround a central portion of a pixel electrode, an organic electroluminescence layer that is provided on the pixel electrode, a common electrode that is formed so as to extend from the organic electroluminescence layer to the bank, a color filter layer that overlaps the organic electro luminescence layer, a black matrix layer that overlaps the bank, a spacer that is provided on the black matrix layer, and a wiring that is provided on the black matrix layer so as to be placed on the spacer. The black matrix layer is disposed on the bank through the spacer. A convex portion is formed by the wiring being placed on the spacer, and the convex portion is electrically connected to the common electrode above the bank.

Organic electroluminescence display device with spacers

A display device includes contact holes opened in an insulating film outside of a display area in which pixels are arranged, and having a conductive film exposed in bottom portions, a first metal film formed to cover the contact holes and come in contact with the conductive film of the bottom portions, and a transparent conductive film formed on the first metal film.

Display device with reduced frame size

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

A manufacturing method of a display device includes forming a pixel in a display area of a panel, forming a transistor circuit in a peripheral area of the panel, the peripheral area being located in the vicinity of the display area, forming a first pad in a part of the peripheral area, forming a second pad in a peripheral area of another panel adjacent to the part of the panel, the second pad being electrically connected to the transistor circuit, performing a driving inspection on the transistor circuit by use of the second pad, and separating the first pad and the second pad from each other after the driving inspection.

Manufacturing method of display device, display device, and display device formation substrate

Display device

A display device includes a first substrate, an organic EL layer formed on the first substrate and curved in each pixel, and color filters disposed in the respective pixels, and curved to match the organic EL layer. With this configuration, a change in the chromaticity and brightness of the display device depending on a viewing angle of a user is reduced.

Organic electroluminescence display device

Organic EL display device

An organic EL display device includes a first substrate, a plurality of organic EL devices arranged on the first substrate, a second substrate arranged above the first substrate, and a filling layer arranged between the first substrate and the second substrate, and displays an image on the second-substrate side. The organic EL display device is characterized in that: the organic EL devices each have a light-emission layer, a reflection electrode formed below the light-emission layer and reflecting light from the light-emission layer upwards, and an upper electrode formed above the light-emission layer and having a light transmission property and reflectivity; a structure for resonating the light emitted by the light-emission layer is formed between the reflection electrode and the upper electrode; and the filling layer includes fine particles for diffusing light exiting from the upper electrode added therein.

Provided is an organic electroluminescence display device. The organic electroluminescence display device includes a bank that is provided so as to surround a central portion of a pixel electrode, an organic electroluminescence layer that is provided on the pixel electrode, a common electrode that is formed so as to extend from the organic electroluminescence layer to the bank, a color filter layer that overlaps the organic electroluminescence layer, a black matrix layer that overlaps the bank, a spacer that is provided on the black matrix layer, and a wiring that is provided on the black matrix layer so as to be placed on the spacer. The black matrix layer is disposed on the bank through the spacer. A convex portion is formed by the wiring being placed on the spacer, and the convex portion is electrically connected to the common electrode above the bank.

A display device with a touch screen includes a display device that has a display area and a touch screen that has a detection area including a transparent electrode and a peripheral area located around the detection area. The touch screen being disposed in the display area. The peripheral area includes a connection electrode that is connected to the transparent electrode and an insulating film that includes a protrusion extending to the detection area. The protrusion is disposed to be superimposed on the connection electrode. The transparent electrode is disposed to cover a part in which the protrusion and the connection electrode are superimposed.

Touch screen, display device including touch screen, and manufacturing method for display device including touch screen

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.

In an organic EL display panel, one sealing substrate is shared between two organic EL substrates, thereby achieving thinning and lightening of the panel body. The display panel includes a sealing substrate having a first concave portion and a second concave portion opposite the first concave portion, a first transparent glass substrate hermetically sealed on the first concave portion, a first organic light emitting element formed on a surface of the first transparent glass substrate, a first desiccant disposed on a bottom surface of the first concave portion, a second transparent glass substrate hermetically sealed on the second concave portion, a second organic light emitting element formed on a surface of the second transparent glass substrate, a second desiccant disposed on a surface of the second concave portion, wherein the first organic light emitting element and the second organic light emitting element achieve a shared use of the sealing substrate.

Organic electroluminescent display device

An organic electroluminescence (EL) display device wherein pixel defects are reduced with a minimum increase in the number of thin film transistors used is to be provided. The organic EL display device has: a plurality of power supply lines each for supplying a current to one or another of pixel circuits disposed in an area surrounded by image signal lines and scanning lines; a plurality of split organic EL elements connected in parallel, each connected to one or another of the pixel circuits; a first thin film transistor of which the gate electrode is connected to the signal lines, the source electrode is connected in parallel to the anodes of the plurality of split organic EL elements, and the drain is connected to the power supply lines, and which controls the total amperage to be supplied during the light emitting period to the plurality of split organic EL elements with signals captured from the signal lines; and a plurality of second thin film transistors each disposed between the first thin film transistor and one or another of the split organic EL elements to control the current supplied to each of the split organic EL elements from the first thin film transistor.

Growing community of inventors

Tokyo, Japan

Hiroshi Oooka