The present disclosure provides a pixel layout structure of an organic light emitting diode (OLED), an OLED display panel, and a manufacturing method of the OLED display panel. The OLED display panel includes the pixel layout structure. The pixel layout structure includes pixel unit odd rows and pixel unit even rows arranged in mutual misalignment.

A method of manufacturing a display substrate, includes: providing a substrate; forming an anode layer on the substrate and a hole injection layer on the anode layer, the anode layer comprising a plurality of anode blocks arranged at intervals, and the hole injection layer comprising a plurality of hole injection portions arranged at intervals, the plurality of hole injection portions disposed on the plurality of anode blocks in a one-to-one correspondence; forming a pixel definition layer on the hole injection layer, the pixel definition layer provided with a plurality of pixel openings, which expose the plurality of hole injection portions in a one-to-one correspondence; forming an organic light-emitting material layer which is located at least partially in each of the plurality of pixel openings; and forming a cathode layer, which covers a side of the organic light-emitting material away from the substrate.

A method of manufacturing an electroluminescent device includes providing a substrate including a first pixel and a second pixel configured to emit different colors; forming a first light-emitting layer and a first protecting layer over the substrate through a first opening of a first sacrificial layer; forming a second light-emitting layer and a second protecting layer over the substrate through a second opening of a second sacrificial layer; removing the first sacrificial layer together with the second sacrificial layer; and removing the first protecting layer from the first light-emitting layer, and the second protecting layer from the second light-emitting layer.

A memory cell includes a first conductive line, a lower electrode, a carbon nano-tube (CNT) layer, a middle electrode, a resistive layer, a top electrode and a second conductive line. The first conductive line is disposed over a substrate. The lower electrode is disposed over the first conductive line. The carbon nano-tube (CNT) layer is disposed over the lower electrode. The middle electrode is disposed over the carbon nano-tube layer, thereby the lower electrode, the carbon nano-tube (CNT) layer and the middle electrode constituting a nanotube memory part. The resistive layer is disposed over the middle electrode. The top electrode is disposed over the resistive layer, thereby the middle electrode, the resistive layer and the top electrode constituting a resistive memory part. The second conductive line is disposed over the top electrode.

An etchant composition includes an inorganic acid compound of about 8 wt % to about 15 wt %, a sulfonic acid compound of about 2.5 wt % to about 8 wt %, a sulfate compound of about 6 wt % to about 14 wt %, an organic acid compound of about 40 wt % to about 55 wt %, a metal or metal salt of about 0.01 wt % to about 0.06 wt %, and water.

Devices include a substrate, a collector layer, and an emitter layer positively biased relative to the collector. Devices further include a semiconductor layer located between the collector and the emitter. The semiconductor layer includes an organic semiconductor polymer with a donor-acceptor structure.

A display substrate, a manufacturing method thereof, and a display device are provided. The display substrate includes a base substrate, organic light-emitting elements, a data line, and an electrode line. The organic light-emitting element includes a first electrode, a light-emitting layer and a second electrode sequentially stacked; the data line is located between the base substrate and the organic light-emitting element; the electrode line is on the same layer as the data line and located in a region outside a light-emitting region of the organic light-emitting element. The display substrate further includes at least one connection portion, which is in the region outside the light-emitting region and is configured to connect the electrode line and the first electrode, the connection portion is spaced apart from the second electrode, and the light-emitting layer covers the second electrode and the at least one connection portion.

According to one embodiment, a manufacturing method of a display device includes forming a first display element on a substrate, the first display element including a first lower electrode, a first upper electrode and a first organic layer located between the first lower electrode and the first upper electrode, forming a first sealing layer which covers the first display element, forming a first resist on the first sealing layer, and removing, of the first sealing layer and the first display element, a portion exposed from the first resist by a first patterning process including washing of the substrate with a cleaning liquid containing water.

A photovoltaic device comprises plural layers separated into plural cells, each comprising a region of a photoactive layer and electrodes on opposite sides thereof. Each of the regions of the photoactive layer are formed comprising a first part that comprises photoactive material and a second part that is not photoactive and that has a greater transmittance of visible light than the light absorbing photoactive material, in pre-selected locations, or in a pre-selected distribution of locations, across the region of the photoactive layer. One of the first and second parts are located in plural separate areas within the other of the first and second parts. The transparency of the photovoltaic device is increased by the transmission of light through the second part that is not photoactive.

A display apparatus includes: a substrate including a component area, a display area, and a middle area provided between the component area and the display area; a thin-film transistor arranged in the display area; a display element including a pixel electrode, an intermediate layer, and an opposite electrode, wherein the pixel electrode is electrically connected to the thin-film transistor; a first organic insulating layer, a second organic insulating layer, and a passivation layer sequentially stacked on each other between the thin-film transistor and the pixel electrode; and a groove arranged in the middle area, wherein the groove divides an organic material layer included in the intermediate layer, wherein the groove is provided in multiple layers including an organic layer and an inorganic layer, wherein the organic layer is arranged on the substrate, and the inorganic layer is stacked on the organic layer.