Joled Inc.

Japan Display Inc.

Toshiaki Onimaru

Kazuhiro Kobayashi

Takayuki Shimamura

Yoshiki Hayashida

Tetsuro Kondoh

Tetsuro Kondo

Makoto Kimura

A method for repairing a bank during manufacture of an organic EL display device when a bank defect portion is produced due to collapsing of a bank, a foreign particle, or the like. The method includes: detecting a defect portion of a lengthwise bank formed over a ground substrate; and when a defect portion is detected, forming, in each of adjacent concave spaces between which the lengthwise bank having the defect portion is located, a dam partitioning the concave space into a first space in a vicinity of the bank defect portion and a second portion not in the vicinity of the bank defect portion. The shape of the dam is configured so that in ejecting organic functional layer ink in each concave space with a nozzle head, there is an ink dropping point in each of the first space and the second space.

Method for manufacturing organic EL display device and organic EL display device

Provided is an organic EL display panel manufacturing method. The organic EL display panel includes a plurality of semiconductor elements. The method includes: forming, on a planarization film formed above the semiconductor elements, lower electrodes in one-to-one correspondence with the pixels; forming an organic layer including a light-emitting layer on the lower electrodes; forming an upper electrode on the organic layer; detecting any of the lower electrodes that includes a defect; and forming, on the planarization film or any of the lower electrodes that includes a defect, a protrusion for connecting the lower electrode and the upper electrode.

Display panel manufacturing method and display panel

A display panel including: a substrate; a multi-layer wiring layer disposed over the substrate and including a first power line and a second power line; organic electroluminescence elements over the multi-layer wiring layer; a partition wall over the multi-layer wiring layer; and a member over the multi-layer wiring layer, a height of the member from the substrate being greater than a height of the partition wall from the substrate, wherein the multi-layer wiring layer includes a first portion and a second portion, the organic electroluminescence elements are arrayed on the first portion, in the second portion, the first power line and the second power line intersect, and the member is positioned on the second portion without overlapping at least one of the first power line and the second power line in plan view of the substrate.

Display panel including multilayer wiring and member for reducing probability of power line mis-pressing during manufacturing process, and manufacturing method for the same

A bank repair method in a manufacturing process of an organic EL display device including first and second banks forming a matrix over a substrate. When a defect portion of a first bank is detected, in each of adjacent concave spaces between which the first bank having the defect portion is located, a candidate forming position is set and a dam portion partitioning the concave space into a first space in a vicinity of the defect portion and a second space outside the vicinity of the defect portion is formed. When denoting sub-pixel region surface area as H and denoting a surface area of a region of a candidate first space overlapping with a sub-pixel region as I, the dam portion is formed at the candidate forming position according to a first forming method when I&#x3c;&#x3b1;&#xd7;H is fulfilled, where 0.05&#x3c;&#x3b1;&#x3c;0.9.

Method of fabricating a bank repair for organic display device

A bank repair method for repairing a defect portion of a bank in a process of manufacturing an organic electroluminescence (EL) display device including a substrate, banks formed over the substrate, and light-emitting layers formed in concave spaces defined by the banks. The bank repair method includes: examining whether or not a bank having a defect portion is present; and when a bank having a defect portion is present, repairing the bank by applying a repair material containing a gas adsorbent to the defect portion and curing the repair material; and after curing the repair material, baking the repair material by irradiating the repair material with infrared laser light.

Method for repairing bank, organic EL display device, and method for manufacturing same

An examination is performed of whether or not a bank having a defect portion is present. When a bank having a defect portion is present, the bank having the defect portion is repaired by forming a dam in each of adjacent concave spaces between which the bank having the defect portion is located. A dam formed in a concave space partitions the concave space into a first space in a vicinity of the defect portion and a second space outside the vicinity of the defect portion. The dam, at a portion thereof with lowest height, satisfies (h/H)+0.1W&#x2267;1.5, 0.5&#x2266;(h/H)&#x2266;2.0, and 5&#x2266;W&#x2266;50, where a ratio of the height h of the dam to a height H of the banks is denoted as h/H, and a width of the dam is denoted as W &#x3bc;m.

Bank repair for organic EL display device

An examination is performed of whether or not a bank having a defect portion is present. When a bank having a defect portion is present, the bank having the defect portion is repaired by forming a dam in each of adjacent concave spaces between which the bank having the defect portion is located. A dam formed in a concave space partitioning the concave space into a first space in a vicinity of the defect portion and a second space outside the vicinity of the defect portion.

Bank repair method, organic EL display device, and production method for same

An organic EL panel includes: an organic EL substrate; a color filter substrate; and a resin layer, wherein the organic EL substrate and the color filter substrate are adhered to each other via the resin layer, the color filter substrate further includes a moisture absorbent layer, the moisture absorbent layer being vapor-deposited on the colored layers, facing the resin layer, and containing magnesium oxide, and a temperature of the second substrate during vapor deposition of the moisture absorbent layer is 200 degrees Celsius or lower.

Growing community of inventors

Tokyo, Japan

Toshiaki Onimaru