A viewing angle switchable display device can include a display panel including first, second, and third sub-pixels, each of the first, second, and third sub-pixels having a first emission area and a second emission area spaced apart from the first emission area; and a lens layer disposed over the display panel and including a first type of lens corresponding to the first emission area and a second type of lens corresponding to the second emission area, in which the first type of lens has a different shape than the second type of lens. Also, the display panel is configured to display an image according to a wide view mode via the first emission area and the first type of lens, and display the image according to a narrow view mode via the second emission area and the second type of lens.

A viewing angle switchable display device can include a display panel including first, second, and third sub-pixels, each of the first, second, and third sub-pixels having a first emission area and a second emission area spaced apart from the first emission area; and a lens layer disposed over the display panel and including a first type of lens corresponding to the first emission area and a second type of lens corresponding to the second emission area, in which the first type of lens has a different shape than the second type of lens. Also, the display panel is configured to display an image according to a wide view mode via the first emission area and the first type of lens, and display the image according to a narrow view mode via the second emission area and the second type of lens.

A display device with a switchable viewing angle includes a timing controller to generate an image data, a data control signal, and a gate control signal, a data driver to generate a data signal using the image data and the data control signal, a gate driver to generate a gate signal and first to third emission signals using the gate control signal, and a display panel including a plurality of subpixels to display an image using the data signal, the gate signal, and the first to third emission signals. The gate driver includes a gate signal generator to generate the gate signal, first emission signal generator to generate the first emission signal, and second and third emission signal generators to generate the second and third emission signals, respectively, using input and output signals of the gate signal generator and input and output signals of the first emission signal generator.

A display device including a plurality of pixels disposed on a substrate, in which each pixel includes a first subpixel, a second subpixel adjacent to the first subpixel, and a third subpixel adjacent to the second subpixel, the second subpixel disposed between the first subpixel and the third subpixel; a first color filter disposed in the first subpixel, and configured to emit light having a first color; a second color filter disposed in the second subpixel, and configured to emit light having a second color; and a third color filter disposed in the third subpixel, and configured to emit light having a third color. Further, an upper surface of the second color filter is disposed a greater distance from the substrate than an upper surface of the first color filter, and the first subpixel further includes a first light path changing layer disposed on the first color filter and contacting a first side surface of the second color filter.

A display device including a plurality of pixels disposed on a substrate, in which each pixel includes a first subpixel, a second subpixel adjacent to the first subpixel, and a third subpixel adjacent to the second subpixel, the second subpixel disposed between the first subpixel and the third subpixel; a first color filter disposed in the first subpixel, and configured to emit light having a first color; a second color filter disposed in the second subpixel, and configured to emit light having a second color; and a third color filter disposed in the third subpixel, and configured to emit light having a third color. Further, an upper surface of the second color filter is disposed a greater distance from the substrate than an upper surface of the first color filter, and the first subpixel further includes a first light path changing layer disposed on the first color filter and contacting a first side surface of the second color filter.

A display apparatus may include: a substrate including a first sub-pixel area; an overcoat layer on the substrate and having a plurality of concave portions in the first sub-pixel area; and a bank layer on the overcoat layer and having a first opening to define a first light light-emitting area in the first sub-pixel area. The overcoat layer may include two first flat areas having a flat surface in the first light-emitting area, the concave portions being absent in the two first flat areas.

An electroluminescent display device includes a substrate on which a plurality of sub-pixels are defined; a first electrode in each sub-pixel on the substrate; a first hole transporting layer on the first electrode; a second hole transporting layer on the first hole transporting layer; a third hole transporting layer on the second hole transporting layer; a light-emitting material layer on the third hole transporting layer; an electron transporting layer on the light-emitting material layer; and a second electrode on the electron transporting layer, wherein the first hole transporting layer includes a P-type dopant and a first hole transporting material, the second hole transporting layer includes the first hole transporting material, and the third hole transporting layer includes a second hole transporting material, and wherein a total thickness of the first and second hole transporting layers is equal to or greater than a thickness of the third hole transporting layer.

A display device can include a substrate having a display area including a plurality of light emitting diodes, a first non-display area, and a bending area disposed between the first non-display area and the display area; a first inorganic encapsulation layer on the plurality of light emitting diodes; and a data driver in the first non-display area, in which the substrate is configured to be bent at the bending area for locating a portion of the first non-display area that includes the data driver under or behind a portion of the display area, and the first inorganic encapsulation layer includes a first region configured to overlap with the data driver and a second region that does not overlap with the data driver, the first region of the first inorganic encapsulation layer having a higher refractive index than the second region of the first inorganic encapsulation layer.

The present disclosure is directed to a display apparatus having a high resolution with improved light efficiency. In one aspect, such display apparatus includes a substrate, a light emitting element formed on the substrate and configured to emit light of different colors via a plurality of sub-pixels, and a partial color filter layer formed on a first subset of the plurality of sub-pixels configured to output at least two of the different colors.

The present disclosure is directed to a display apparatus having a high resolution with improved light efficiency. In one aspect, such display apparatus includes a substrate, a light emitting element formed on the substrate and configured to emit light of different colors via a plurality of sub-pixels, and a partial color filter layer formed on a first subset of the plurality of sub-pixels configured to output at least two of the different colors.