This application provides a flexible screen cover. The flexible screen cover includes a protective layer, a main layer, and a buffer layer. A modulus ratio of the main layer to the buffer layer is 8 to 180000. The buffer layer can be disposed at any proper position in the flexible screen. A modulus ratio of an adjacent layer to a buffer layer is 2 to 500000. The collapsible electronic device includes a housing and a flexible screen, and the flexible screen is installed in the housing. This application can improve impact resistance performance of the flexible screen.

Provided is a display device having a thin profile and a high light use efficiency and a head-mounted display including the display device. The display device includes a display panel; a circular polarizer configured to convert display light from the display panel into circularly polarized light and to transmit the circularly polarized light; a patterning mirror including light transmitters and a light reflector, the light transmitters being configured to transmit the circularly polarized light and the light reflector being provided on a surface opposite to a surface facing the circular polarizer; a lens configured to transmit the circularly polarized light transmitted through the patterning mirror; and a circularly polarized light selective reflector configured to selectively reflect the circularly polarized light transmitted through the lens.

A display apparatus includes a display layer located on a surface of a substrate and including a plurality of pixels, a thin-film encapsulation layer located on the display layer, the thin-film encapsulation layer including at least one inorganic layer and at least one organic layer, a polarization film located on the thin-film encapsulation layer, and a protective film located on another surface of the substrate, which is opposite to the surface of the substrate, the protective film corresponding to the display layer. A difference between a coefficient of thermal expansion of the polarization film and a coefficient of thermal expansion of the protective film is in a range of about 0 μm/° C. to about 5 μm/° C.

A foldable display device including: a display panel; an input sensor directly disposed on the display panel and having an upper surface; an anti-reflector disposed on the upper surface of the input sensor, the anti-reflector including: a polarizer; and at least one lower retarder disposed between the input sensor and the polarizer; an upper retarder disposed on the anti-reflector, the upper retarder having a Young's modulus of about 4 GPa to about 100 GPa; a window disposed on the upper retarder and having an upper surface facing away from the upper retarder; and at least one adhesion member disposed between the input sensor and the window, wherein a thickness from the upper surface of the input sensor to the upper surface of the window is about 130 μm to about 540 μm.

A pixel array package structure includes: a substrate; a pixel array disposed on the substrate, in which the pixel array includes a plurality of light emitting diode chips, and the light emitting diode chips include at least one red diode chip, at least one green diode chip, at least one blue diode chip, and a combination thereof; a reflective layer disposed on the substrate and between any two adjacent of the light emitting diode chips; a light-absorbing layer disposed on the reflective layer and surrounding the pixel array; and a light-transmitting layer disposed on the pixel array, the reflective layer, and the light-absorbing layer, in which the light-transmitting layer has an upper surface and a lower surface opposite thereto, and the lower surface is in contact with the pixel array, and the upper surface has a roughness of 0.005 mm to 0.1 mm.

Provided are a display panel including: a first component, a second component, and a bending component connecting the first component and the second component; wherein, the first component has a display surface, and the bending component has a via passing through the bending component in a direction perpendicular to the display surface. A display device is also provided.

The present disclosure provides a display system. The display system includes a backlight configured to emit substantially collimated polarized light from an emission surface thereof. The emitted polarized light is polarized along a polarization direction. The display system further includes a display panel configured to receive an illumination light and form an image. The display system further includes a grating system substantially coextensive in length and width with the display panel and the emission surface. The grating system includes a plurality of substantially parallel elongated features extending along an in-plane first direction and arranged along an orthogonal in-plane second direction. The grating system is configured to receive and transmit an incident polarized light as a first transmitted light having different first and second polarization states in response to different respective first and second signals applied to the grating system.

The present disclosure provides a flexible display device including a display panel, a first attachment frame, a second attachment frame, and a cover window structure, wherein the cover window structure is connected to the display panel through the first attachment frame. By providing a replaceable cover window structure, thinning of the cover window structure can be realized to the greatest extent, and its bending performance can be improved. As such, a wider choice of materials is available, and expensive materials can be replaced by cheaper layers, such that the production of the hardened layer can be achieved through various process routes.

A multimode display device is configured for enhanced performance of a non-directional (public) viewing mode and one or more directional (narrow) viewing modes. The display device includes a switchable optical assembly disposed on a viewing side of a top emitting electroluminescent display. The switchable optical assembly includes one of a switchable parallax layer that includes an electro optic material, or a non-switchable parallax layer in combination with a switchable scattering device that includes the electro-optic material and is disposed on the viewing side of the non-switchable parallax layer. The switchable optical assembly is switched so as to re-configure the display device between the non-directional and directional viewing modes.

The present disclosure provides a flexible display device including a display panel, a first attachment frame, a second attachment frame, and a cover window structure, wherein the cover window structure is connected to the display panel through the first attachment frame. By providing a replaceable cover window structure, thinning of the cover window structure can be realized to the greatest extent, and its bending performance can be improved. As such, a wider choice of materials is available, and expensive materials can be replaced by cheaper layers, such that the production of the hardened layer can be achieved through various process routes.