The present disclosure relates to the field of display technology, and proposes a display panel, a preparation method thereof, and a display apparatus. The display panel includes an array substrate, a planarization layer group, and a plurality of sub-pixels. The array substrate includes a switch array formed by a plurality of switch units. The planarization layer group is provided on the array substrate, and nano-scale grooves are provided on the planarization layer group. The sub-pixels are provided on a side of the planarization layer group away from the array substrate. The sub-pixel includes a plurality of first electrodes, wherein the first electrode is connected to the switch unit of the array substrate, a nano-scale second gap is provided between two adjacent first electrodes, and an orthographic projection of the second gap on the array substrate is located within an orthographic projection of the groove on the array substrate.

Embodiments of the present invention generally relate to a touch sensible organic light emitting device. The organic light emitting device according to an exemplary embodiment of the present invention comprises: a substrate; a thin film transistor disposed on the substrate; an organic light emitting element connected to the thin film transistor and receiving a data voltage; a plurality of encapsulation thin films disposed on the organic light emitting element, and encapsulating the thin film transistor and the organic light emitting element; a planarization layer disposed on the encapsulation thin film; and a touch sensor disposed on the planarization layer.

An optical laminate includes two substrates each of which has a tensile modulus in a range from 2,000 MPa to 7,500 MPa, and an adhesive layer interposed between the substrates. A storage modulus at 25° C. of the adhesive layer is 100 kPa or less, and a storage modulus at −20° C. of the adhesive layer is equal to or less than three times the storage modulus at 25° C. of the adhesive layer. The optical laminate and an image display device including the optical laminate may have an improved flexible property at various temperature ranges and may be capable of minimizing cracks when being bent.

Optical stacks are described. In particular, optical stacks including reflecting-absorbing polarizers and quarter-wave plates are disclosed. The optical core of the optical stack—which includes a reflecting-absorbing polarizer with at least one skin layer including polarizing dye—may be co-extruded or co-stretched.

The present disclosure provides a substrate comprising a printing area, wherein the printing area comprises a flat surface and a plurality of separation structures projecting from the flat surface, wherein the plurality of separation structures divide the printing area into a plurality of micro-areas, and in each of the micro-areas, a circular region containing no separation structure has a maximum diameter between 5 μm and 10 μm. The present disclosure further provides a light emitting device comprising the substrate and a method for manufacturing the substrate.

The present invention provides an organic light-emitting diode (OLED) device and a manufacturing of the OLED device. The OLED device includes a light-emitting layer, an insulating layer, an electron transport layer, and an electron injection layer. The insulating layer is arranged on one side of the light-emitting layer, and a through hole is in the insulating layer. The through hole is arranged corresponding to a middle portion of the light-emitting layer. The electron transport layer is in a lower portion of the through hole and attached to a surface of the light-emitting layer. The electron injection layer is in an upper portion of the through hole and attached to one side of the electron transport layer away from the light-emitting layer.

A display panel includes: a base substrate, light-emitting devices on the base substrate, and barrier structures. The light-emitting device includes: a first electrode and a second electrode arranged in a stacked manner, and a light-emitting functional layer between the first electrode and the second electrode. The barrier structures are located on a film layer between the light-emitting functional layer and the base substrate. The orthographic projection of the barrier structure on the base substrate is between the orthographic projections of adjacent light-emitting devices on the base substrate. The barrier structure is configured to generate, under the control of an electrical signal, an electric field in a direction perpendicular to a plane where the base substrate is located.

The present disclosure provides an array substrate and a manufacturing method thereof, a display panel and a display device. The array substrate includes a base substrate; a pixel defining layer disposed on the base substrate, the pixel defining layer is provided with a plurality of opening areas, peripheral areas surrounding the opening areas and other areas except the opening areas and the peripheral areas; and a first electrode layer, disposed on the side of the pixel defining layer facing away from the base substrate. A roughness of a surface, facing away from the base substrate, of the first electrode layer in the peripheral regions is greater than a roughness of a surface, facing away from the base substrate, of the first electrode layer in the other regions.

Provided are a display panel and a manufacturing method therefor, and a display device. The display panel includes: a substrate, a pixel defining layer located on the substrate, and a cathode isolation structure located on the pixel defining layer. The cathode isolation structure includes at least a first isolation sub-layer and a second isolation sub-layer located between the pixel defining layer and the first isolation sub-layer, the cross section of the second isolation sub-layer is smaller than that of the first isolation sub-layer, and an orthographic projection, on the substrate, of the second isolation sub-layer falls within an orthographic projection range, on the substrate, of the first isolation sub-layer.

Provided is a method for manufacturing an array substrate. The method includes: providing a base substrate with a conductive pattern layer, wherein the base substrate is provided with a display region and a peripheral region disposed around the display region, wherein the conductive pattern layer includes a plurality of conductive lines disposed in the peripheral region; forming an electrode material film layer on the conductive pattern layer; forming a mask layer on the electrode material film layer, wherein the mask layer includes a plurality of electrode layer patterns disposed in the display region and protection patterns disposed above the conductive lines; and etching the electrode material film layer and removing the mask layer.