Regioselectively substituted cellulose esters having a plurality of pivaloyl substituents and a plurality of aryl-acyl substituents are disclosed along with methods for making the same. Such cellulose esters may be suitable for use in films, such as +A optical films, and/or +C optical films. Optical films prepared employing such cellulose esters have a variety of commercial applications, such as, for example, as compensation films in liquid crystal displays and/or waveplates in creating circular polarized light used in 3-D technology.

Disclosed is an organic light emitting diode (OLED) display comprising a substrate; an organic light emitting element disposed on the substrate; an encapsulation substrate disposed on the organic light emitting element; and an adhesive layer formed on the substrate, covering the organic light emitting element, and bonding the substrate on which the organic light emitting element is formed with the encapsulation substrate.

A barrier film laminate (1) comprising an organic layer (4) that is situated in between two inorganic layers (2,3). The organic layer comprises submicron getter particles (5) at an amount between 0.01 and 0.9% by weight. The barrier film laminate can be used for encapsulating organic electronic devices such as OLEDs. The long term homogenous transparency makes this laminate in particular suited for protecting the light emitting side of an OLED.

An organic EL display device of active matrix type wherein insulated-gate field effect transistors formed on a single-crystal semiconductor substrate are overlaid with an organic EL layer; characterized in that the single-crystal semiconductor substrate (413 in FIG. 4) is held in a vacant space (414) which is defined by a bed plate (401) and a cover plate (405) formed of an insulating material, and a packing material (404) for bonding the bed and cover plates; and that the vacant space (414) is filled with an inert gas and a drying agent, whereby the organic EL layer is prevented from oxidizing.

According to an exemplary embodiment of the present disclosure, a light emitting display device includes a transistor disposed on a substrate, a planarization layer disposed on the transistor, a light emitting diode disposed on the planarization layer, a bank layer disposed in a non-emitting area so as to define an emitting area of the light emitting diode, a hydrogen trapping layer disposed in the non-emitting area, and an encapsulation layer disposed on the bank layer and the hydrogen trapping layer.

Discussed is a method of manufacturing an organic light emitting display panel for simplifying a manufacturing process and enhancing display quality. The organic light emitting display panel can include a first electrode disposed in each of subpixel areas of a substrate, bank layers disposed on the substrate at a boundary portion between adjacent subpixel areas, a lateral surface of the bank layers being hydrophilic, a first organic material layer disposed on the bank layers and the first electrode, a surface of the first organic material layer on the bank layers being hydrophobic, a second organic material layer disposed on the first organic material layer between adjacent bank layers, a third organic material layer disposed on the second organic material layer and the first organic material layer, and a second electrode disposed on the third organic material layer.

A flexible display device is disclosed. In one aspect, the display device includes a substrate, a display unit formed over the substrate and a filler formed over the substrate and the display unit. An encapsulation substrate is formed over the encapsulation substrate, and a barrier layer is formed over the encapsulation substrate. The encapsulation substrate includes a base layer and a plurality of protrusions formed over a first surface of the base layer and spaced apart from each other. The barrier layer is formed over the first surface so as to cover the plurality of protrusions and a portion of the base layer exposed between the plurality of protrusions, and the first surface faces the display unit.

A the organic EL display 1 includes: a first substrate 10; an organic EL element 4 provided above the first substrate 10; and a multilayer sealing film 2 provided above the first substrate 10 to cover the organic EL element 4, and including a barrier layer and a buffer layer lower in hardness than the barrier layer. The organic EL element covered with the multilayer sealing film includes a protrusion, and a relationship (d/h)<2 holds where h is a height of the protrusion directly below the buffer layer and d is a thickness of the buffer layer.

A light emitting display device includes a lower substrate, a thin film transistor on the lower substrate, a passivation layer disposed on the thin film transistor and including hydrogen, an overcoating layer disposed on the passivation layer and planarizing the passivation layer, a light emitting element disposed on the overcoating layer and including an anode, a light emitting layer on the anode, and a cathode on the light emitting layer, a bank disposed on the overcoating layer and defining a light emitting area, an adhesive layer on the light emitting element and the bank, and a hydrogen absorbing layer disposed on the adhesive layer and including a hydrogen absorbing filler, wherein a side end of the bank is disposed more inwardly than side ends of the adhesive layer and the hydrogen absorbing layer, wherein the side ends of the adhesive layer and the hydrogen absorbing layer are disposed more inwardly than a side end of the overcoating layer.

A package structure of an electronic device is provided. The substrate of such package structure has at least one embedded gas barrier structure, which protects the electronic device mounted thereon and offers good gas barrier capability so as to extend the life of the electronic device.