Patent ID: 8049413

Claim:
A display device, comprising: a pixel electrode; a partitioning wall which defines a pixel forming region by surrounding the pixel electrode; a transistor which is connected to the pixel electrode and has a gate electrode and a semiconductor layer including a channel portion, the gate electrode and the channel portion overlapping each other along a direction normal to a plane of the display device; and a protective insulating film which covers the transistor and has a contact hole between the pixel electrode and the transistor; wherein the partitioning wall comprises: a first insulating layer which has a first portion overlapping the channel portion of the semiconductor layer along the direction normal to the plane of the display device, and a second portion covering a region of the pixel electrode corresponding to a position of the contact hole; a second insulating layer which is lyophilic and formed on the first portion of the first insulating layer and which does not overlap the second portion of the first insulating layer along the direction normal to the plane of the display device; and a conductive layer which is liquid-repellent and formed on the second insulating layer and which does not overlap the second portion of the first insulating layer along the direction normal to the plane of the display device; and wherein the display device is an organic EL display device.