Joled Inc.

Panasonic Corporation

Panasonic Intellectual Property Management Co., Ltd.

Takashi Osako

Shinya Ono

Kenichi Nendai

Seiji Nishiyama

Yasuharu Shinokawa

Shinichi Shikii

Yuji Tanaka

Hitoshi Tsuge

Kouhei Ebisuno

Masafumi Matsui

Toshiyuki Kato

Yosuke Izawa

Kaoru Abe

Yasuo Segawa

Shigeo Homura

Kenji Kokuda

Naoko Mizusaki

Ryoichi Yasuda

A display panel includes a contact area which includes an upper conductive layer forming first electrodes of the organic EL elements, a lower conductive layer disposed below the upper conductive layer, a middle layer between the upper conductive layer and the lower conductive layer, and an insulating layer between the lower conductive layer and the middle layer. The middle layer includes a first area and a second area which are conductive and electrically connected to the upper conductive layer, and an insulating separating area which separates the first area and the second area. The lower conductive layer includes a first line which is electrically connected to the first area via a first contact hole, and a second line which is electrically connected to the second area via a second contact hole.

Display panel and display device

An organic electroluminescence (EL) display panel including pixels arranged in a matrix, the organic EL display panel includes: a substrate; pixel electrode layers made of a light-reflective material and arranged on the substrate in a matrix; an insulating layer provided at least above row and column outer edges of the pixel electrode layers and above inter-regions on the substrate between the row and column outer edges; an organic functional layer provided above the pixel electrode layers; and a counter electrode layer made of a light-transmissive material and is provided above the organic functional layer, wherein the organic functional layer includes light-emitting layers that are provided in regions above the pixel electrode layers where the insulating layer is not provided, the light-emitting layers causing organic electroluminescence, and the insulating layer has an optical density of 0.5 to 1.5 in a direction of the substrate when viewed in plan.

Organic el display panel and method of manufacturing organic el display panel

A display device including: a lead wiring layer pattern, made from metal, that extends outside a light emission region on a substrate; a passivation layercovering the lead wiring layer pattern, a contact holein the passivation layer outside the light emission region; a connecting wiring layer patternthat is continuous across the passivation layer, an inner circumference of the contact hole, and the lead wiring layer pattern in the contact hole; an electrically-conductive sealing layer patternon the connecting wiring layer pattern, covering a portion of the connecting wiring layer pattern in the contact hole; an electrically-conductive upper sealing layer patterncovering and in contact with a portion of the sealing layer pattern; and a contact prevention layer patternbetween the electrically-conductive upper sealing layer pattern and a periphery of the sealing layer pattern.

Thin-film transistor device and display device using same

A display device including: a lead wiring layer pattern, made from metal, that extends outside a regionA on a substrate in which a light-emitter is present; a passivation layer; a contact holein the passivation layeroutside the regionA in a position over the lead wiring layer patternin plan view; a connecting wiring layer patternthat is continuous across the passivation layer, an inner circumference of the contact hole, and the lead wiring layer patternin the contact hole; a sealing layercovering a portion of the connecting wiring layer patternin the contact hole; and an upper sealing layer patterncovering the sealing layer patternthat is above the connecting wiring layer pattern

A display panel manufacturing method is provided. A display function unit is provided on a surface of a first substrate. Sealing material is provided in a region on the surface of the first substrate that is surrounding the display function unit. Resin is then placed in an inside region of the sealing material over the surface of the first substrate. A total volume amount of the resin placed is greater than a volume capacity of an open space surrounded by the sealing material above the surface of the first substrate. A second substrate is bonded with the first substrate via the sealing material to provide a closed space with the resin being provided in the closed space.

Display panel manufacturing method and display panel

A light deflector which deflects incident light and emits the deflected light, by changing a refractive index of a liquid crystal: a pair of ITO films; a plurality of prisms which are provided between the pair of transparent electrodes and are arranged on a facing surface of one of the pair of transparent electrodes, the facing surface facing a surface of the other one of the pair of transparent electrodes; two spacers arranged between the pair of transparent electrodes, and having, in a direction from one of the pair of transparent electrodes toward the other, widths which (i) are greater than widths of the prisms and (ii) are identical to each other; and a liquid crystal which is provided, within a space between the pair of transparent electrodes, in a portion other than a portion where the prisms and the two spacers exist.

Light deflector, method of manufacturing light deflector, and liquid crystal display

A method of manufacturing a display panel includes: a first step of forming a partition wall layer above a substrate; a second step of exposing the partition wall layer using a first photomask that has a mask pattern corresponding to a blue opening; a third step of exposing the partition wall layer using a second photomask that has a mask pattern corresponding to a red opening and a green opening; a fourth step of forming a partition wall by removing the partition wall layer to form the red opening, the green opening , and the blue opening in the partition wall layer; and a fifth step of forming a light emitting layer in each opening.

Method of manufacturing display panel

A organic EL display panel includes an inter-layer insulation film, a pixel electrode, auxiliary wiring, a partition layer, an organic light-emitting layer, and a common electrode. The inter-layer insulation film has at least one paired concave portion and non-concave portion disposed in a region over the auxiliary wiring, a top face of the concave portion being concave with respect to a top face of the non-concave portion, and the auxiliary wiring includes a part over the concave portion and a part over the non-concave portion, a top face of the part over the concave portion being concave with respect to a top face of the part over the non-concave portion.

Organic electroluminescence display panel and method of manufacturing same

A display device includes: a power supplying unit which outputs at least one of a high-side output potential and a low-side output potential; a display unit in which pixels are arranged in a matrix and which receives power supply from the power supplying unit; a monitor wire arranged along a column direction of the pixels in the matrix, which has one end connected to at least one pixel inside the display unit, and is for transmitting the high-side potential to be applied to the pixel; and a voltage regulating unit connected to the other end of the monitor wire, which regulates at least one of the high-side output potential and the low-side output potential to be outputted by the power supplying unit, to set a potential difference between the high-side potential and the low-side potential to a predetermined potential difference.

Display device

A method of fabricating a display panel apparatus, includes forming a TFT layer, forming a planarizing film, forming a lower electrode, an electrode plate, and an auxiliary electrode, forming banks, forming the organic EL layer, and forming an upper electrode. The electrode plate has an opening exposing a portion of a surface of the planarizing film. In at least one of the forming of the lower electrode, the electrode plate and the auxiliary electrode, and the forming of the banks, the opening of the electrode plate outgasses the planarizing film. The electrode plate has a power supply that receives current through the electrode plate. The opening extends in parallel with a side of the display near the opening. Current flowing between the power supply and a portion connecting the auxiliary electrode and the electrode plate flows along an extending direction of the opening.

Display panel apparatus and method of fabricating display panel apparatus

A flexible display includes: a display panel which is flexible; and a flexible circuit board which is disposed on a side of the display panel and includes an integrated circuit element provided on a surface thereof and an opening portion. The opening portion is in a shape extending in a second direction vertical to a first direction which is parallel to the side of the display panel to which the flexible circuit board is connected, and the integrated circuit element and the opening portion are arranged in the first direction.

Flexible display including a flexible display panel having an opening

A method of manufacturing a display panel having a display part and a terminal part each formed on a different area on a TFT substrate, comprising: a step of forming the display part on the TFT substrate; a step of forming a conductive layer of a conductive metal oxide or a metal on an area where the terminal part is to be formed; a step of forming a chemical vapor deposition layer of an inorganic compound by a chemical vapor deposition method so that the chemical vapor deposition layer covers the display part and comes into contact at least with an upper surface of the conductive layer and so that the upper surface of the conductive layer alters; and a step of removing a portion of the chemical vapor deposition layer on the conductive layer.

Display panel manufacturing method, display panel, and display apparatus

A display panel apparatus has a structure which is less likely to seal a planarizing film even when an electrode plate is provided on the planarizing film, and the display panel apparatus includes: a planarizing film formed on a substrate; a pixel formed on the planarizing film and including: a lower electrode; an organic layer; and an upper electrode; an auxiliary electrode electrically insulated from the lower electrode and electrically connected to the upper electrode; a display section including a plurality of the pixels; an electrode plate electrically connected to the auxiliary electrode and arranged to cover the planarizing film outside the display section; and a power supply section electrically connected to the electrode plate, and the electrode plate has a hole exposing a part of a surface of the planarizing film.

A display includes: a display panel; and a flexible circuit board connected to the display panel, and including power source lines for supplying driving current to the display panel, a signal line for transmitting a control signal to the display panel, and an integrated circuit element, in which the flexible circuit board includes a metal pattern connected to the power source lines, and the metal pattern is in contact with an outer surface of the integrated circuit element directly or via a thermal conductor.

Display

A display panel apparatus includes a planarizing film formed on a substrate, at least one pixel including a lower electrode; an organic EL layer; and an upper electrode which are formed above the planarizing film; an auxiliary electrode electrically connected to the upper electrode which is the opposite to the lower electrode; a display section including a plurality of the pixels; an electrode plate electrically connected to the auxiliary electrode and arranged to cover the planarizing film outside the display section, and the electrode plate has a hole exposing a part of a surface of the planarizing film. Furthermore, the display panel apparatus also includes a hole injection layer which is an inorganic material layer made of an inorganic material and covering the hole.

Growing community of inventors

Kyoto, Japan

Takashi Osako