An OLED substrate and a manufacturing method thereof arc provided, the OLED substrate includes a substrate, and an OLED device in a sub-pixel region on the substrate. The OLED device includes an organic layer having a non-uniform thickness. The OLED substrate further includes a transmittance adjusting layer in the sub-pixel region. The transmittance of a portion of the transmittance adjusting layer corresponding to a thicker portion of the organic layer is higher than the transmittance of a portion of the transmittance adjusting layer corresponding to a thinner portion of the organic layer. The transmittance adjusting layer is located on a light exit side of the organic layer such that light emitted from the organic layer passes through the transmittance adjusting layer when the OLED substrate is in operation.

A flexible display panel includes a flexible substrate including a first region including a display region and having a curved display surface, and a plurality of non-display regions that is located outside the display region and including a second region located outside the first region and folded in a direction different from a display direction of the first region, and an encapsulation member for encapsulating the display region along the curved display surface.

An organic electroluminescence device including: an anode; a cathode; two or more emitting units that are disposed between the anode and the cathode, each unit having an emitting layer; and a charge-generating layer that is disposed between the emitting units, wherein the charge-generating layer includes an N layer nearer to the anode and a P layer nearer to the cathode, and the N layer includes a compound represented by the following formula (I) or (II): ##STR00001##

An OLED device and a method of preparing the same are provided, the OLED device including: a substrate; a first source electrode on the substrate, the first source electrode having a first side surface; a first insulating layer on the first source electrode, the first insulating layer having a second side surface intersecting with an upper surface of the first source electrode and the first side surface of the first source electrode, with at least one of an angle between the first side surface and the upper surface of the substrate and an angle between the second side surface and the upper surface of the substrate being an acute angle; an active layer on the substrate, the active layer covering the first side surface and the second side surface; a gate insulating layer on the active layer; an anode on the gate insulating layer; a light emitting functional layer on the anode; and a cathode on the light emitting functional layer, the cathode including a first drain region covering the first insulating layer and being in contact with the active layer.

An opposing substrate as a substrate for an electro-optical device includes a transparent base member and a light shielding portion disposed on a region between pixels on the base member. The light shielding portion includes a first reflective film and a second reflective film that is disposed to overlap the first reflective film and has a reflection rate lower than that of the first reflective film, and a first protective film that covers the first reflective film is provided between the first reflective film and the second reflective film.

A novel compound is provided. The novel compound is represented by General Formula (G1). ##STR00001##
In General Formula (G1), A represents a substituted or unsubstituted condensed aromatic ring having 10 to 30 carbon atoms or a substituted or unsubstituted condensed heteroaromatic ring having 10 to 30 carbon atoms, and R.sup.1 represents a substituted or unsubstituted aryl group having 6 to 25 carbon atoms. Each of Y.sup.1 and Y.sup.2 independently represents a cycloalkyl group having a bridge structure and having 7 to 10 carbon atoms.

Disclosed are a light-emitting device and a display device including the same. An emissive layer is formed so as to have a dual-layer structure, the triplet energy level of a dopant of a first emissive layer adjacent to a hole transport layer is greater than the triplet energy level of a first host in the first emissive layer, and the triplet energy level of the first host is greater than the triplet energy level of a second host of a second emissive layer, whereby triplet excitons generated in the first emissive layer are recycled to the second emissive layer so as to be reused for light emission.

An embodiment of the present disclosure discloses a display panel and a display device, wherein third openings are disposed in a region of a black matrix layer corresponding to a transition region in the display panel, so that external light can be reflected by the reflection structure through the third openings, to form reflected light, thereby increasing the light reflectivity of the transition region and improving the dimmer transition region when the panel is screen-off and screen-on.

An embodiment of the present disclosure discloses a display panel and a display device, wherein third openings are disposed in a region of a black matrix layer corresponding to a transition region in the display panel, so that external light can be reflected by the reflection structure through the third openings, to form reflected light, thereby increasing the light reflectivity of the transition region and improving the dimmer transition region when the panel is screen-off and screen-on.

A light emitting photonic crystal having an organic light emitting diode and methods of making the same are disclosed. An organic light emitting diode disposed within a photonic structure having a band-gap, or stop-band, allows the photonic structure to emit light at wavelengths occurring at the edges of the band-gap. Photonic crystal structures that provide this function may include materials having a refractive index that varies.