An electroluminescent display device can include a substrate divided into a plurality of sub-pixels having an opening area and a non-opening area, a planarization layer disposed on the substrate, an anode disposed on the planarization layer, and a bank disposed on the anode and the planarization layer, the bank having an opening exposing a portion of the anode in the opening area. The electroluminescent display device has a light emitting unit disposed on the portion of the anode; a cathode disposed on the light emitting unit and the bank. A deposition blocking layer is disposed on the cathode in a portion of the non-opening area and the opening area, and a reflective layer disposed on the cathode in another portion of the non-opening area, in which the reflective layer does not overlap with the deposition blocking layer.

A display substrate, a display panel, an electronic device and a display method. The display substrate includes first electrodes in a first display region and second electrodes in a second display region, a first light-emitting portion in the first display region and a second light-emitting portion in the second display region, and the first electrodes being of strip shapes extending along a first direction and being spaced apart from each other along a second direction; third electrodes in the first display region and a fourth electrode in the second display region, the third electrode being of strip shapes extending along the second direction and being spaced apart from each other along the first direction.

A light emitting element includes: a protrusion (28) surrounding a light emitting region (30); a first electrode (31) including a first portion (31A) formed on a portion of a base (26) constituting the light emitting region (28) and a second portion (31B) extending from the first portion (31A) and formed on the protrusion (28); an organic layer (33) formed on and above the first electrode (31); a second electrode (32) formed on the organic layer (33); a first wavelength conversion layer (41.sub.1, 41.sub.2) that is formed between the second portion (31B) of the first electrode (31) and a portion of the organic layer (33) formed above the protrusion (28) and converts light emitted from the organic layer (33) into light on a long wavelength side; and a second wavelength conversion layer (42.sub.1, 42.sub.2) that is formed on or above the second electrode (32) and converts light emitted from the organic layer (33) into light on a long wavelength side.

To prevent attenuation and modulation of light received or projected through a display surface.

An image display device includes a plurality of pixels arranged two-dimensionally, in which a pixel in a first pixel region including some pixels among the plurality of pixels includes a first light emitting region, a non-light emitting region having a higher visible light transmittance than the first light emitting region, and a first self-light emitting element that emits light from the first light emitting region, and a pixel in a second pixel region other than the first pixel region among the plurality of pixels includes a second light emitting region having a lower visible light transmittance than the non-light emitting region, and a second self-light emitting element that emits light from the second light emitting region.

A light-emitting device includes a first electrode, a second electrode facing the first electrode, a light-emitting layer provided between the first electrode the second electrode and including a phosphor, a layered body including a metal layer, a first insulating layer provided on a second electrode side of the metal layer, and a second insulating layer provided on a light-emitting layer side of the metal layer, and having a thickness that allows electron injection from the second electrode to the light-emitting layer, a first power supply configured to apply a voltage between the first electrode and the second electrode, and a second power supply configured to apply, between the metal layer and the second electrode, a voltage of which polarity of the second polarity is opposite to a polarity of the second electrode of a voltage applied by the first power supply between the first electrode and the second electrode.

A display panel includes a driving back plate, a first insulating layer, and a light-emitting device layer sequentially stacked. The driving back plate includes a first reflecting electrode layer. The first reflecting electrode layer includes first primary reflecting electrodes in a display area and first auxiliary reflecting electrodes in a peripheral area. The light-emitting device layer includes a second reflecting electrode layer including second primary reflecting electrodes in the display area and second auxiliary reflecting electrodes in the peripheral area. The second primary reflecting electrodes are in one-to-one correspondence and electrically connected with the first primary reflecting electrodes. The orthographic projection of the second primary reflecting electrode on the first reflecting electrode layer are located within the first primary reflecting electrode.

A sub pixel includes an active layer, a gate insulating layer, a gate, an interlayer insulating layer, a source-drain layer, a first planarization layer, and an anode. The anode includes: a reflection layer located on the side of the first planarization layer away from the base substrate and including reflection parts arranged at intervals; a second planarization located on the side of the reflection layer away from the base substrate and covers the reflection layer and the base substrate; and a first transparent electrode layer located on the side of the second planarization layer away from the base substrate and includes first electrodes arranged at intervals. There is at least an overlapping area between orthographic projections of the first electrodes on the base substrate and orthographic projections of the reflection parts on the base substrate in a same sub-pixel.

Embodiments of the disclosed subject matter provide a device including an organic light emitting device (OLED) display having at least one pixel having a plurality of sub-pixels, where at least one color sub-pixel of the plurality of sub-pixels may be configured to output red light, green light, and/or blue light. The device may include at least one sub-pixel that is configured to have a Lambertian emission, and at least one sub-pixel having a microcavity configured for direct emission such that a first ratio of light from the direct emission sub-pixel in a cone having an angle of 0-20° in a normal direction relative to an overall light emission from the direct emission sub-pixel having at least 10%, at least 20%, and/or at least 30% higher than a second ratio of light from the Lambertian emission sub-pixel.

Provided is a display device capable of suppressing deterioration in reliability. A display device includes: a plurality of first electrodes; a second electrode facing the plurality of first electrodes; and an organic light-emitting layer provided between the plurality of first electrodes and the second electrode. Each of the first electrode includes: a metal layer having a main surface facing the organic light-emitting layer; and a transparent electrode covering a main surface of the metal layer and a side surface of the metal layer and containing a transparent conductive oxide. The metal layer includes: a first metal layer having a hydrogen absorption capacity; and a second metal layer provided on the first metal layer and facing the organic light-emitting layer with the transparent electrode interposed therebetween. A peripheral edge of the first metal layer is separated from the transparent electrode.

A light-emitting element includes a first electrode, a second electrode, and a functional layer provided between the first electrode and the second electrode. Moreover, the light-emitting element includes: a third electrode provided to the functional layer through a first insulating film; a fourth electrode provided to the functional layer through a second insulating film; and a stress applying unit made of a piezoelectric material, and applying stress to the functional layer in response to application of a voltage from the third electrode and the fourth electrode.