An electronic device includes a base layer. A pixel definition layer is disposed on the base layer. The pixel definition layer includes a first opening extending therethrough and a second opening extending therethrough. A light emitting element is disposed on the base layer and overlaps the first opening. A light sensing element is disposed on the base layer and overlaps the second opening. The light sensing element comprises a photodiode and a conductive pattern that directly contacts the photodiode. A pixel transistor is connected to the light emitting element. A sensing transistor is connected to the light sensing element. The light sensing element is disposed between a layer that the pixel transistor is disposed and a layer that the light emitting element is disposed.

An electronic device includes a base layer. A pixel definition layer is disposed on the base layer. The pixel definition layer includes a first opening extending therethrough and a second opening extending therethrough. A light emitting element is disposed on the base layer and overlaps the first opening. A light sensing element is disposed on the base layer and overlaps the second opening. The light sensing element comprises a photodiode and a conductive pattern that directly contacts the photodiode. A pixel transistor is connected to the light emitting element. A sensing transistor is connected to the light sensing element. The light sensing element is disposed between a layer that the pixel transistor is disposed and a layer that the light emitting element is disposed.

A display substrate having a plurality of subpixels is provided. A respective one of the plurality of subpixels includes alight emitting element; a first thin film transistor configured to driving light emission of the light emitting element; and a light emitting brightness value detector. The light emitting brightness value detector includes a second thin film transistor; and a photosensor electrically connected to the second thin film transistor and configured to detect a light emitting brightness value. The display substrate further includes a silicon organic glass layer on a side of at least one of the first thin film transistor or the second thin film transistor away from a base substrate; and the photosensor is on a side of the silicon organic glass layer away from the base substrate.

A display substrate having a plurality of subpixels is provided. A respective one of the plurality of subpixels includes alight emitting element; a first thin film transistor configured to driving light emission of the light emitting element; and a light emitting brightness value detector. The light emitting brightness value detector includes a second thin film transistor; and a photosensor electrically connected to the second thin film transistor and configured to detect a light emitting brightness value. The display substrate further includes a silicon organic glass layer on a side of at least one of the first thin film transistor or the second thin film transistor away from a base substrate; and the photosensor is on a side of the silicon organic glass layer away from the base substrate.

An embodiment method of measuring ambient light comprises generating, by an ambient light sensor associated with a screen which alternates between first phases in which light is emitted and second phases in which no light is emitted by the screen, a first signal representative of an intensity of light received by the ambient light sensor during the first and second phases; comparing the first signal with a threshold intensity value; and controlling a timing of an ambient light measurement by the light sensor based on the comparison.

A display device is provided, which includes a light sensor in a display panel. The display device comprises a substrate having a unit pixel area and a unit light sensor area, a first electrode over the substrate, a second electrode over the first electrode, a third electrode over the second electrode, a light emitting layer in the unit pixel area and disposed between the first electrode and the second electrode, and a light active layer disposed in the unit light sensor area and disposed between the second electrode and the third electrode.

A display device is provided, which includes a light sensor in a display panel. The display device comprises a substrate having a unit pixel area and a unit light sensor area, a first electrode over the substrate, a second electrode over the first electrode, a third electrode over the second electrode, a light emitting layer in the unit pixel area and disposed between the first electrode and the second electrode, and a light active layer disposed in the unit light sensor area and disposed between the second electrode and the third electrode.

A foldable display apparatus, a method of manufacturing the same, and a controlling method of the same are disclosed. The foldable display apparatus includes a substrate including a metal thin film and an insulating layer provided on the metal thin film, an organic light-emitting unit formed on the substrate and emitting light in an direction away from the substrate, and a thin film encapsulating layer for encapsulating the organic light-emitting unit. The foldable display apparatus may be folded in a direction such that the metal thin film is exposed.

A foldable display apparatus, a method of manufacturing the same, and a controlling method of the same are disclosed. The foldable display apparatus includes a substrate including a metal thin film and an insulating layer provided on the metal thin film, an organic light-emitting unit formed on the substrate and emitting light in an direction away from the substrate, and a thin film encapsulating layer for encapsulating the organic light-emitting unit. The foldable display apparatus may be folded in a direction such that the metal thin film is exposed.

A display device includes a substrate provided with a plurality of transmissive areas, a plurality of light emitting elements disposed between the plurality of transmissive areas and comprised of a first electrode, a light emitting layer and a second electrode, and a first light path changing layer disposed between the plurality of transmissive areas, changing a path of light directed from the light emitting layer toward the substrate, thereby reducing interference light due to a light emitting element when an optical sensor operates.