Gated organic light-emitting diodes or vertical light emitting transistors are disclosed based on the modulation of charge carrier injection from electrodes into light-emitting materials by applying external gate potential. This gate modulation were achieved in two disclosed methods: 1) a porous electrode allowing mobile ions to stabilize electrochemically doped semiconducting materials that can form ohmic contact with electrodes: 2) an electrode with gate-tunable work function such as Al:LiF composite electrodes.

Provided are a monoamine compound and an organic electroluminescence device including the same. The monoamine compound according to an example embodiment is represented by the following Formula 1 ##STR00001##

Provided are a display substrate and a preparation method thereof, a display panel, and a display device. The display substrate includes a substrate and a plurality of pixel units on the substrate. The pixel unit comprises a plurality of functional layers that are sequentially arranged in a direction away from the substrate. At least one of the plurality of functional layers, which is close to the substrate, constitutes a vertical thin film transistor (VTFT). At least one of the plurality of functional layers, which is away from the substrate, constitutes an organic light-emitting transistor (OLET). An orthographic projection region of the OLET on the substrate and an orthographic projection region of the VTFT on the substrate at least partially overlap.

A electroluminescence display device includes a pixel including a selection transistor, a driving transistor, and an EL element, a scanning signal line electrically connected with a gate of the selection transistor, a data signal line electrically connected with a source of the selection transistor, and a carrier injection amount control signal line applying a voltage to the EL element. The EL element includes a first electrode, a third electrode, a first insulating layer between the first electrode and the third electrode, an electron transfer layer between the first insulating layer and the third electrode, a light emitting layer containing an electroluminescence material between the electron transfer layer and the third electrode, and a second electrode located outer to a region where the first electrode, the first insulating layer, the electron transfer layer and the third electrode overlap each other, the second electrode being in contact with the electron transfer layer.

A semiconductor device package includes a display device, an electronic module and a conductive adhesion layer. The display device includes a first substrate and a TFT layer. The first substrate has a first surface and a second surface opposite to the first surface. The TFT layer is disposed on the first surface of the first substrate. The electronic module includes a second substrate and an electronic component. The second substrate has a first surface facing the second surface of the first substrate and a second surface opposite to the first surface. The electronic component is disposed on the second surface of the second substrate. The conductive adhesion layer is disposed between the first substrate and the second substrate.

An organometallic compound represented by Formula 1: ##STR00001## wherein, Formula 1, R.sub.1 to R.sub.10 and A.sub.1 to A.sub.7 are the same as described in the detailed description of the specification.

An apparatus for fingerprint sensing includes a touch-display layer covered by a transparent layer. The touch-display layer can emit light to illuminate a finger surface touching the transparent layer. The touch-display layer is transparent to reflected light from the surface to underlying layers. The underlying layers include a collimator layer and a pixelated image sensor. The collimator layer can collimate the reflected light, and the pixelated image sensor can sense the collimated reflected light. The collimator can collimate the reflected light to enable a one-to-one imaging ratio between an area of the finger surface touching the transparent layer and an area of a corresponding image formed on the pixelated image sensor.

An apparatus for fingerprint sensing includes a touch-display layer covered by a transparent layer. The touch-display layer can emit light to illuminate a finger surface touching the transparent layer. The touch-display layer is transparent to reflected light from the surface to underlying layers. The underlying layers include a collimator layer and a pixelated image sensor. The collimator layer can collimate the reflected light, and the pixelated image sensor can sense the collimated reflected light. The collimator can collimate the reflected light to enable a one-to-one imaging ratio between an area of the finger surface touching the transparent layer and an area of a corresponding image formed on the pixelated image sensor.

The invention concerns bifuran imide and methods of using same in the construction of furan-based oligomers and polymers. The furan-based systems are used for the construction of organic electronics. (formula)

##STR00001##

A display device includes a window, a display panel arranged below the window and including a display area and a peripheral area outside the display area; and a component arranged below the display panel and at least partially overlapping the peripheral area, wherein a black matrix is arranged on a bottom surface of the window in correspondence with an area in the peripheral area other than an area where the component is located.