The present disclosure provides a defining solution for preparing a pixel defining layer configured to define individual pixels on a substrate, comprising: a lyophilic material, a lyophobic material and an initiator, wherein the lyophobic material comprises: a first lyophobic material and a second lyophobic material, and wherein a mass average molecular weight of the first lyophobic material is greater than a mass average molecular weight of the second lyophobic material, and a mass average molecular weight of the lyophilic material is greater than the mass average molecular weight of the first lyophobic material. The present disclosure further provides a display panel, a display apparatus and a method of preparing a pixel defining layer.

A display device including a lower electrode layer including a first lower electrode having first and second areas, and a second lower electrode having third and fourth areas; a pixel defining layer covering the second and fourth areas; a first electroluminescent layer having an outline substantially surrounding an outline of the first area; a second electroluminescent layer having an outline substantially surrounding an outline of the third area; an upper electrode having an outline substantially surrounding the outlines of the first and second electroluminescent layers; and a color filter layer including a first color filter having an area of which an outline thereof is between the outline of the first area and the outline of the first electroluminescent layer; and a second color filter having an area of which an outline thereof is between the outline of the third area and the outline of the second electroluminescent layer.

A laser ablation apparatus includes: a laser beam generator including beam sources for generating laser beams, the laser beam generator using a solid-state laser; an output beam generator for generating an output beam using the laser beams; and a substrate stage including at least one stage on which a carrier substrate formed on the front of a panel substrate is disposed. The output beam generator may include: mixers for generating mixed laser beams having two linear-polarizations orthogonal to each other by mixing the laser beams; and a photo molding machine for generating the output beam using the mixed laser beams.

A display apparatus includes a light-emitting device with improved reliability while maintaining liquid-repellent properties of peripheral layers after plasma irradiation. The display apparatus includes: a substrate; a pixel electrode disposed on the substrate; a pixel defining layer disposed on the pixel electrode and having an opening that exposes a central portion of the pixel electrode; and a liquid-repellent layer disposed on the pixel defining layer and having an upper surface having a concavo-convex structure.

An organic light-emitting display device includes a driving transistor configured to control current to an organic light-emitting diode from a power voltage line, a compensation transistor configured to diode-connect the driving transistor in response to a voltage applied to a compensation gate electrode of the driving transistor, and a gate insulating layer interposed between a driving active region of the driving transistor and the driving gate electrode, and between a compensation active region of the compensation transistor and the compensation gate electrode. A dielectric constant in a first portion of the gate insulating layer between the driving active region and the driving gate electrode is greater than a dielectric constant in a second portion of the gate insulating layer between the compensation active region and the compensation gate electrode.

An organic light-emitting display device includes: first and second pixel electrodes (PEs); a pixel-defining layer (PDL) disposed on the first and second PEs, the pixel-defining layer including first and second openings respectively exposing the first and second PEs; first and second intermediate layers (ILs) respectively disposed on the first and second PEs exposed via the first and second openings, each of the first and second ILs including an emission layer; first and second opposite electrodes (OEs) respectively disposed on the first and second ILs, the first and second OEs having an island-shaped pattern; first and second protective layers (PLs) respectively disposed on the first and second OEs, the first and second PLs having an island-shaped pattern; and a connection layer disposed on the first and second PLs, the connection layer electrically connecting the first and second OEs to one another.

A display device includes: a substrate; an inorganic insulating layer disposed on the substrate; a conductor disposed on the inorganic insulating layer; and an organic insulating layer disposed on the conductor, where an opening is defined through the organic insulating layer to expose a part of the upper surface of the conductor, and at least one material selected from a siloxane, a thiol, a phosphate, a disulfide including a sulfur series, and an amine is bonded on the part of the upper surface of the conductor exposed through the opening.

An embodiment of the present invention provides a display panel. The display panel includes a driving circuit layer, a first electrode layer, an auxiliary electrode layer, a pixel definition layer, and an electron transport layer disposed in a stack. The electron transport layer is connected to the auxiliary electrode layer through a first via hole defined on the pixel definition layer. By setting an energy level difference between a lowest unoccupied molecular orbital of the electron transport layer and a work function of the auxiliary electrode layer to 2.0 eV or less, it reduces an injection barrier between the auxiliary electrode layer and the electron transport layer, and relieves unevenness of luminescence of the display panel.

An active matrix substrate includes a first TFT and a second TFT, each of TFTs includes an oxide semiconductor layer and a gate electrode arranged on a part of the oxide semiconductor layer with a gate insulating layer therebetween, in which in the first TFT, the oxide semiconductor layer, in a first region covered with the gate electrode with the gate insulating layer interposed between the oxide semiconductor layer and the gate electrode, has a layered structure including a lower oxide semiconductor film and an upper oxide semiconductor film throughout and a mobility of the upper oxide semiconductor film is higher than a mobility of the lower oxide semiconductor film, and in the second TFT, in at least a part of a first region of the oxide semiconductor layer, of the lower oxide semiconductor film and the upper oxide semiconductor film, one oxide semiconductor film is provided, and another oxide semiconductor film is not provided.

Embodiments described herein relate to sub-pixel circuits and methods of forming sub-pixel circuits that may be utilized in a display such as an organic light-emitting diode (OLED) display. The device includes a plurality of sub-pixels, each sub-pixel of the plurality of sub-pixels defined by adjacent pixel-defining layer (PDL) structures with inorganic overhang structures disposed on the PDL structures, each sub-pixel having an anode, organic light-emitting diode (OLED) material disposed on the anode, and a cathode disposed on the OLED material. The device is made by a process including the steps of: depositing the OLED material and the cathode by evaporation deposition, and depositing an encapsulation layer disposed over the cathode.