A method of manufacturing a display substrate which includes a central display area and an arc-shaped stretch area located at a corner of the central display area, wherein the method includes: preparing a substrate to be etched, which includes a flexible substrate, a stack structure disposed on the flexible substrate, and a last-dry-etched metal layer disposed on a side of the stack structure away from the flexible substrate, the stack structure including an active layer, at least one conductive layer, and a plurality of insulating layers, wherein the last-dry-etched metal layer is a last metal layer that is formed through dry etching; and forming a stretch groove by patterning the substrate to be etched, wherein the stretch groove is disposed in the stretch area and passes through the stack structure and a part of the flexible substrate. A display substrate, a display panel and a display device are further provided.

An ink jet process is used to deposit a material layer to a desired thickness. Layout data is converted to per-cell grayscale values, each representing ink volume to be locally delivered. The grayscale values are used to generate a halftone pattern to deliver variable ink volume (and thickness) to the substrate. The halftoning provides for a relatively continuous layer (e.g., without unintended gaps or holes) while providing for variable volume and, thus, contributes to variable ink/material buildup to achieve desired thickness. The ink is jetted as liquid or aerosol that suspends material used to form the material layer, for example, an organic material used to form an encapsulation layer for a flat panel device. The deposited layer is then cured or otherwise finished to complete the process.

A cracks propagation preventing, polarization film attaches to outer edges of a lower inorganic layer of an organic light emitting diodes display where the display is formed on a flexible substrate having the lower inorganic layer blanket formed thereon. The organic light emitting diodes display further includes a display unit positioned on the inorganic layer and including a plurality of organic light emitting diodes configured to display an image, and a thin film encapsulating layer covering the display unit and joining with edges of the inorganic layer extending beyond the display unit.

Provided is a display device 100 that includes a display panel having flexibility (an organic EL panel 1 as an example), and an optical member 2 having flexibility, arranged so as to be stacked on the display panel, wherein the display panel and the optical member 2 are stacked and bonded in a bent state, and thereafter stretched into a flat shape.

The present disclosure proposes a flexible display and a method of forming the flexible display. The flexible display includes a flexible base, an OLED element disposing on the flexible base, an encapsulation layer disposed on the OLED element, with the flexible base and/or the encapsulation layer comprising one or more patterned inorganic layers and two or more organic layers, which are configured to wrap the inorganic layers. Therefore, when the stress focuses on the inorganic layer and leads to fractures and peeling-offs, the organic layers that wrapped the inorganic layer prevent the expansion of the fractures and peeling-offs, therefore extend the life of the flexible display being flexible and pliable.

In one embodiment, a display device comprises: a substrate including an emissive area that emits light and a non-emissive area that does not emit light; a transistor over the substrate; a light emitting device over the transistor, the light emitting device including a first electrode, a light emitting layer on the first electrode, and a second electrode on the light emitting layer; a contact hole in the emissive area of the substrate, the contact hole positioned between the transistor and the light emitting device; and an auxiliary electrode in the contact hole, the auxiliary electrode electrically connecting together the first electrode of the light emitting device and the transistor.

An active-matrix touchscreen includes a substrate, a system controller, and a plurality of spatially separated independent touch elements disposed on the substrate. Each touch element includes a touch sensor and a touch controller circuit that provides one or more sensor-control signals to the touch sensor and receives a sense signal responsive to the sensor-control signals from the touch sensor. Each touch sensor operates independently of any other touch sensor.

An organic light-emitting display apparatus, including: a first electrode disposed on the substrate; a pixel defining layer covering an edge of the first electrode; a residual layer disposed on the first electrode and the pixel defining layer, the residual layer comprising a fluoropolymer; a first organic functional layer comprising a first light emitting layer disposed on the residual layer on the first electrode; and a second electrode disposed on the first organic functional layer.

Methods for forming an OLED device are described. An encapsulation structure having organic buffer layer sandwiched between barrier layers is deposited over an OLED structure. The buffer layer is formed with a fluorine-containing plasma. The second barrier layer is then deposited over the buffer layer. Additionally, to ensure good adhesion, a buffer adhesion layer is formed between the buffer layer and the first barrier layer. Finally, to ensure good transmittance, a stress reduction layer is deposited between the buffer layer and the second barrier layer.

A display device includes a first substrate including an active area, a bending area, and a pad area; a plurality of pixels to display an image in the active area, each of the plurality of pixels including an organic light emitting diode (OLED); a signal line and a power line disposed on the first substrate, the signal line and the power ling being disposed on a same layer in the bending area, the bending area on the first substrate being configured to be bent flexibly; and a second substrate facing the active area and disposed on the first substrate.