An organic light emitting device (OLED) comprises a substrate layer, a sub-electrode microlens array (SEMLA) at least partially embedded in the substrate layer comprising a plurality of microlenses, a first electrode layer over the substrate layer, a light emitting layer over the first electrode layer, and a second electrode layer over the light emitting layer. The device can further include a distributed Bragg reflector (DBR) layer between the substrate and first electrode layers and/or a Purcell Factor (PF) enhancement layer over the second electrode layer, comprising at least one layer pair including a silver mirror electrode and a metal-dielectric layer. Related methods are also disclosed.

The present disclosure discloses an organic electroluminescence display panel, a method for manufacturing the display panel, and a display apparatus. The organic electroluminescence display panel includes: a substrate including a first region and a second region adjacent to each other; a buffer layer located on the substrate; a first active layer located on the buffer layer in the first region; a first gate located on the first active layer and insulated from the first active layer; a second active layer located on the buffer layer in the second region; a metal electrode located on the first gate and insulated from the first gate; and a second gate located on the second active layer and insulated from the second active layer.

The present disclosure discloses an organic electroluminescence display panel, a method for manufacturing the display panel, and a display apparatus. The organic electroluminescence display panel includes: a substrate including a first region and a second region adjacent to each other; a buffer layer located on the substrate; a first active layer located on the buffer layer in the first region; a first gate located on the first active layer and insulated from the first active layer; a second active layer located on the buffer layer in the second region; a metal electrode located on the first gate and insulated from the first gate; and a second gate located on the second active layer and insulated from the second active layer.

An OLED waveguide assembly including an organic light emitting diode assembly, a waveguide layer and a substrate. The organic light emitting diode assembly is separated from the waveguide layer by a spacer layer, and the organic light emitting diode assembly has a maximum emission at a wavelength of 470 nanometers. The waveguide layer is nanostructured. The substrate has pixel-dependent nanostructures with a lattice constant of approximately 400±50 nanometers, suitable for the emissions of the waveguide layer. The waveguide layer or a layer situated in front of the waveguide has the function of a wavelength converter having a maximum absorption at 470 nanometers and having a maximum emission at 620 nanometers. The lattice structure does not match the emission of the installed OLED. Ideally, all of the primary light is converted or any residual is filtered out. Further an OLED-waveguide assembly production method.

An opposing substrate as a substrate for an electro-optical device includes a transparent base member and a light shielding portion disposed on a region between pixels on the base member. The light shielding portion includes a first reflective film and a second reflective film that is disposed to overlap the first reflective film and has a reflection rate lower than that of the first reflective film, and a first protective film that covers the first reflective film is provided between the first reflective film and the second reflective film.

Display panel and display device are provided. The display panel includes a display region and a frame region surrounding the display region. In the frame region, the display panel includes a base substrate, a planarization layer, an anode layer and a pixel defining layer. The planarization layer includes a first region and a second region. The anode layer includes first hollowed regions and second hollowed regions. The first hollowed regions at least partially overlap the first region, and the second hollowed regions at least partially overlap the second region. The pixel defining layer includes first covering parts and second covering parts. The first covering parts cover the first hollowed regions and extend to cover edges of the anode layer. The second covering parts cover the second hollowed regions and extend to cover edges of the anode layer. Orthographic projections of the first covering parts on the base substrate are larger than orthographic projections of the second covering parts on the base substrate.

Provided are MXene-containing electrodes, display devices, electrochromic devices, and other optoelectronic devices, which devices can include transparent and/or colored MXene materials. In particular, MXenes can be used as transparent conducting electrodes based on their comparatively high electrical conductivity and high work function. An electrode, comprising: a substrate; a portion of MXene material disposed on the substrate; a hole-injection material disposed on the MXene material; an organic layer in electronic communication with the hole-injection material; and a conductor material in electronic communication with the hole-injection material.

The present application discloses a display panel and an onboard display apparatus. The display panel comprises a first electrode layer; an emissive layer group provided on the first electrode layer; a light extraction layer provided on the emissive layer group, the light extraction layer being in a light emission direction of the display panel and serving as a second electrode layer; and an encapsulation layer provided on the light extraction layer; wherein a refractive index of the light extraction layer is smaller than that of the encapsulation layer, so that the anti-reflection of light emitted by the emissive layer group is realized. In the display panel, the light extraction layer and the encapsulation layer form an anti-reflection layer, so that light emitted by the emissive layer group is emitted as much as possible, and the brightness of the display panel is improved.

A display apparatus includes a substrate, a pixel layer arranged over the substrate and including a plurality of display elements, an encapsulation member sealing the pixel layer, and a refractive layer arranged on the encapsulation layer and including a first refractive layer and a second refractive layer. The first refractive layer includes openings that correspond to the plurality of display elements, and the second refractive layer includes high refractive particles. The second refractive layer includes a first layer and a second layer, the first layer includes the high refractive particles dispersed in a first concentration, and the second layer includes the high refractive particles dispersed in a second concentration different from the first concentration.

A display device includes a first substrate and a second substrate at which a display area for displaying an image and a non-display area surrounding the display area are provided; a light-emitting diode in the display area on an inner surface of the first substrate and including an anode electrode, a light-emitting layer and a cathode electrode; and a piezoelectric element in the display area on an inner surface of the second substrate and including a first electrode, a piezoelectric layer and a second electrode, wherein the piezoelectric layer includes dichroic dyes.