The present application provides a display panel, a manufacturing method of the display panel, and a display terminal. The display panel includes a base substrate. The base substrate comprises a first substrate, a semi-interpenetrating net structure layer, and a second substrate stacked on each other. The semi-interpenetrating net structure layer is formed by curing after interpenetration between a material of the first substrate in a partially cured state and a material of the second substrate in an uncured state. Accordingly, a bonding strength between the first and second substrates is increased, inert properties between them are reduced, and production yields in separating a glass substrate from the first substrate are improved.

Provided are an organic electroluminescence device, which shows high luminous efficiency, is free of any pixel defect, and has a long lifetime, and a material for an organic electroluminescence device for realizing the device. The material for an organic electroluminescence device is a compound having a π-conjugated heteroacene skeleton crosslinked with a carbon atom, nitrogen atom, oxygen atom, or sulfur atom. The organic electroluminescence device has one or more organic thin film layers including a light emitting layer between a cathode and an anode, and at least one layer of the organic thin film layers contains the material for an organic electroluminescence device.

A composition comprising an electron acceptor material and an electron donor material wherein the electron acceptor material is a compound of formula (I): EAG-EDG-EAG (I) wherein each EAG is an electron-accepting group and EDG is a group of formula (II): (II) wherein: n is at least 1; each m is independently 0 or at least 1; each X, Y and A is independently O, S or Se; Z, independently in each occurrence if n is greater than 1, is O, S, C═O or NR.sup.9 wherein R.sup.9 is H or a substituent; and R.sup.1-R.sup.8 are each independently selected from H or a substituent. The composition may be used as photosensitive organic layer of an organic photodetector.

##STR00001##

The present invention relates to an organic electronic device comprising a semiconductor layer which comprises a compound of formula (1).

A flexible display panel has a display area, a bonding area, and a bending area located between the display area and the bonding area. A flexible substrate includes a first surface and a second surface. Signal leads electrically connected to pixel driving circuits pass through the bending area from the display area and extend to the bonding area. In the pixel driving circuits, at least one pattern layer made of an inorganic material and located between the signal leads and the flexible substrate passes through the bending area from the display area and extends to the bonding area. A second organic material layer is disposed on a side of the signal leads away from the first surface and located at the bending area. A groove is disposed in a film layer away from the signal leads, and is located between the display area and the bonding area.

A method for fabricating an array substrate, comprising: providing a base substrate; forming a driving-circuit layer, which comprises first driving circuits and second driving circuits; forming a first electrode layer, which comprises transferring electrodes electrically connected to the first driving circuits, and pixel electrodes electrically connected to the second driving-circuits; forming a pixel-defining layer, which is provided with pixel openings and connecting via holes; forming a first pattern-defining layer, which covers the connecting via holes and exposes the pixel openings; forming an organic light-emitting-material layer, which covers the pixel openings and the first pattern-defining layer; removing the first pattern-defining layer, such that the organic light-emitting-material layer forms an organic light-emitting layer; forming a second pattern-defining layer surrounding the connecting via holes; and forming a second electrode layer, which comprises a common electrode and fingerprint-recognition electrodes isolated by the second pattern-defining layer.

A stretchable display panel and a method for manufacturing same, and a display apparatus, which belong to the technical field of display. The method comprises: forming an organic protection structure (100) and an inorganic protection structure (200), which are stacked, on a rigid substrate (000); forming a flexible substrate (300) on the inorganic protection structure (200); forming, on the flexible substrate (300), a plurality of pixel islands and inter-island connection pieces for connecting adjacent pixel islands; forming package layers on the pixel islands and the inter-island connection pieces; and lifting off the rigid substrate (000). The package layers are not in contact with the rigid substrate (000), but the organic protection structure (100) is always in contact with the rigid substrate (000). It is extremely easy for the organic protection structure (100) to be lifted off from the rigid substrate (000), and the probability of a crack occurring during the lifting-off process is relatively low, thereby effectively reducing the probability of package failure of the package layers, and further prolonging the service life of light-emitting devices in the pixel islands.

The present invention relates to an organic electroluminescent device comprising a mixture comprising an electron-transporting host material and a hole-transporting host material, and to a formulation comprising a mixture of the host materials and to a mixture comprising the host materials. The electron-transporting host material corresponds to a compound of the formula (1) from the class of compounds containing a bispirofluorenyl unit.

The present invention relates to the following polycyclic aromatic derivative organic light emitting compound, and an organic light emitting device employing same as a dopant compound of a device light emitting layer. The organic light emitting device according to the present invention comprises a polycyclic aromatic derivative compound as a dopant compound in a light emitting layer, and also, at the same time, employs, alongside the dopant compound, an anthracene derivative compound having a characteristic structure in the light emitting layer by combining same as a host. Accordingly, the organic light emitting device according to the present invention has excellent color purity, high luminous efficiency, and a remarkably improved long life, and thus can be usefully used in various display devices.

A metal complex which is useful for production of a light emitting device of which long-term degradation is suppressed is provided. The metal complex is represented by the formula (1):

##STR00001##

wherein, one of Y.sup.a and Y.sup.b is a single bond, and the other is a group represented by the formula (C-1):

##STR00002##

and wherein at least one of Ring R.sup.A, Ring R.sup.B1, Ring R.sup.B2, Ring R.sup.C1 and Ring R.sup.C2 has a group represented by the formula (D-A), the formula (D-B) or the formula (D-C) as a substituent.