Abstract: Damage to a flexible display can be prevented. A display device having improved mechanical strength can be provided. A display device (10) includes a display panel (11) and a protection cover (12). The display panel (11) includes a first portion having flexibility. The protection cover (12) has a light-transmitting property and flexibility and is provided to overlap with a display surface side of the display panel (11). The display device (10) has a function of being reversibly changed in shape to a first mode in which the display panel (11) and the protection cover (12) are each substantially flat and a second mode in which the first portion of the display panel (11) is curved such that the display surface side becomes a concave surface and part of the protection cover (12) is curved in the same direction as the first portion. In the second mode, there is a gap between the first portion and the protection cover.

Abstract: A method for fabricating a display device that easily achieves higher resolution is provided. A display device having both high display quality and high resolution is provided. A first EL film is formed over a first pixel electrode and a second pixel electrode; a first sacrificial film is formed to cover the first EL film; the first sacrificial film and the first EL film are etched to expose the second pixel electrode and to form a first EL layer over the first pixel electrode and a first sacrificial layer over the first EL layer; and the first sacrificial layer is removed. The first EL film and the second EL film are etched by dry etching, and the first sacrificial layer is removed by wet etching.

Abstract: A method for manufacturing a display apparatus having high display quality is provided. A method for manufacturing a display apparatus including first to third insulators, first and second conductors, and first and second EL layers is provided. The first conductor is formed over the first insulator, and the second insulator is formed over the first insulator and over the first conductor. A first opening portion reaching the first conductor is formed in the second insulator. A sacrificial layer is formed over the second insulator and over a bottom surface of the first opening portion, and a resist is applied over the sacrificial layer. Light exposure and development are performed on the resist, so that a second opening portion reaching the sacrificial layer is formed in a region overlapping with the first conductor.

Abstract: A display device with high resolution is provided. The display device includes a plurality of light-emitting elements that emit light of different colors. The light-emitting element has a microcavity structure and intensifies light with a specific wavelength. The light-emitting elements that emit light of different colors each include a reflective layer and a conductive layer with a varied thickness over a lower electrode, and the lower electrode and the conductive layer are electrically connected to each other in the light-emitting element. The light-emitting elements with different colors being intensified by different optical path lengths are formed.

Abstract: A high-resolution, high-definition, or large display apparatus is provided. A metal mask is placed over an EL layer and film deposition is performed with the metal mask, whereby an island-shaped counter electrode is formed. Then, the EL layer is processed using the counter electrode as a hard mask. Alternatively, after an EL layer and a counter electrode are formed over an entire surface, processing using a metal mask is performed. An insulating layer that electrically insulates adjacent pixel electrodes from each other is positioned between adjacent light-emitting devices. A resist mask is formed over the insulating layer. A plurality of EL layers and a plurality of counter electrodes overlapping each other over the insulating layer are partly removed using the resist mask, whereby part of the insulating layer is exposed. Thus, the adjacent light-emitting devices are electrically insulated from each other over the insulating layer.

Abstract: A novel display panel that is highly convenient or reliable is provided. The display panel includes a display region, a first functional layer, and a second functional layer. The display region includes a pixel, and the pixel includes a display element and a pixel circuit. The first functional layer includes the pixel circuit, a scan line, and a first connection portion. The display element is electrically connected to the pixel circuit, and the pixel circuit is electrically connected to the scan line. The second functional layer includes a region overlapping with the first functional layer, the second functional layer includes a driver circuit and a wiring, and the driver circuit is provided so that the pixel circuit is positioned between the driver circuit and the display element. The wiring is electrically connected to the scan line at the first connection portion, and the wiring is electrically connected to the driver circuit.

Abstract: A novel functional panel that is highly convenient, useful, or reliable is provided. The functional panel includes a base material and a pair of pixels, and the base material covers the pair of pixels and has a light-transmitting property. The pair of pixels includes one pixel and another pixel, and the one pixel includes a light-emitting device and a first microlens. The light-emitting device emits light toward the base material, and the first microlens is interposed between the base material and the light emission and converges light. The first microlens includes a first surface and a second surface; the second surface is closer to the light-emitting device than the first surface is; and the second surface has a smaller radius of curvature than the first surface. The other pixel includes a photoelectric conversion device and a second microlens. The second microlens is interposed between the base material and the photoelectric conversion and converges external light incident from the base material side.

Abstract: A novel display panel that is highly convenient, useful, or reliable is provided. The display panel includes a display region, a first support, and a second support, the display region includes a first region, a second region, and a third region, the first region and the second region each have a belt-like shape extending in one direction, and the third region is sandwiched between the first region and the second region. The first support overlaps with the first region and is less likely to be warped than the third region, and the second support overlaps with the second region and is less likely to be warped than the third region. The second support can pivot on an axis extending in the one direction with respect to the first support.

Abstract: A display device with improved viewing angle characteristics is provided. A display device with suppressed mixture of colors between adjacent pixels is provided. The display device includes a first coloring layer, a second coloring layer, and a structure body therebetween. The structure body has a portion closer to a display surface side than a bottom surface of the first coloring layer or a bottom surface of the second coloring layer.

Abstract: A display device including display regions with inconspicuous seam is provided. The display device includes a first display panel and a second display panel. The first display panel includes a first display region and a visible-light-transmitting region. The second display panel includes a second display region. The first display region is adjacent to the visible-light-transmitting region. The first display region includes a first light-emitting element and a second light-emitting element. A first common electrode included in the first light-emitting element includes a portion in contact with a second common electrode included in the second light-emitting element. The first common electrode has a function of reflecting visible light. The second common electrode has a function of transmitting visible light. The second light-emitting element is positioned closer to the visible-light-transmitting region than the first light-emitting element.

Abstract: A communication system includes a first communication terminal including first circuitry and a second communication terminal including second circuitry. The first circuitry of the first communication terminal receives selection of multiple screens to be displayed on a first display of the first communication terminal. The second circuitry of the second communication terminal controls a second display of the second communication terminal to display the multiple screens for which the selection is received by the first circuitry, by using information on the multiple screens and layout information corresponding to a number of screens of the multiple screens.

Abstract: A display device that enables a user to see a bright image is provided. In the display device, a first substrate, a light-emitting element, an insulating layer, a coloring layer, a planarization layer, a plano-convex lens, a resin layer, and a second substrate are stacked in this order from the bottom. The plano-convex lens is curved outwards in the upper direction of the display device. A convex portion of the plano-convex lens is in contact with a resin layer, and the refractive index of the resin layer is lower than the refractive index of the plano-convex lens. Light emitted by the light-emitting element is converged in the forward direction by the plano-convex lens.

Abstract: An optical device with less influence of stray light is provided. The optical device is thin and includes a half mirror, a first lens, a retardation plate, a reflective polarizing plate, and a second lens. In the optical device, a geometric phase lens which has negative and positive refractive power is used as the first lens, whereby images can be focused after magnified optically. Thus, the optical device can have a wide viewing angle. In the case where stray light occurs due to birefringence of an optical material, negative refractive power of the first lens can prevent the stray light from being focused on the eye direction. Accordingly, image degradation recognized due to stray light can be prevented.

Abstract: A system for displaying an image, includes circuitry that: receives a detection of use of a display device by a user; specifies the display device, based on information related to the display device; and displays, on a display, a display device image representing a specific area in an image captured by an image-capturing device, the specific area including at least a part of the display device that is specified.

Abstract: To achieve a video processing apparatus, a video processing method, and a video processing program capable of relatively accurately estimating, from a moving image, a motion of a camera that has captured the moving image, and reducing a calculation load, a video processing apparatus (100) according to the present disclosure includes a spatial frequency filter unit (10) configured to extract a low spatial frequency component of a moving image, and an angular velocity calculation unit (70) configured to calculate angular velocity of a camera that has captured the moving image, based on the moving image that has been passed through the spatial frequency filter unit (10).

Abstract: Display unevenness in a display panel is suppressed. A display panel with a high aperture ratio of a pixel is provided. The display panel includes a first pixel electrode, a second pixel electrode, a third pixel electrode, a first light-emitting layer, a second light-emitting layer, a third light-emitting layer, a first common layer, a second common layer, a common electrode, and an auxiliary wiring. The first common layer is positioned over the first pixel electrode and the second pixel electrode. The first common layer has a portion overlapping with the first light-emitting layer and a portion overlapping with the second light-emitting layer. The second common layer is positioned over the third pixel electrode. The second common layer has a portion overlapping with the third light-emitting layer.

Abstract: A display apparatus that has a light sensing function is provided. A display apparatus that has high light sensitivity is provided. The display apparatus includes a light-receiving element, a light-emitting element, a conductive layer, and a first wiring. The light-receiving element includes a first pixel electrode, a common layer, an active layer, and a common electrode. The light-emitting element includes a second pixel electrode, the common layer, a light-emitting layer, and the common electrode. The conductive layer is provided over the same surface as the first pixel electrode and the second pixel electrode, is positioned between the first pixel electrode and the second pixel electrode, is electrically connected to the common layer, and is electrically connected to the first wiring to which a first potential is supplied.

Abstract: A method for operating an electronic device, which is easy on eyes, is provided. The electronic device includes a display device including a light-emitting device and a light-receiving device, and a lens.

Abstract: A display device with improved viewing angle characteristics is provided. A display device with suppressed mixture of colors between adjacent pixels is provided. The display device includes a first coloring layer, a second coloring layer, and a structure body therebetween. The structure body has a portion closer to a display surface side than a bottom surface of the first coloring layer or a bottom surface of the second coloring layer.

Abstract: A display device with high design flexibility is provided. The display device includes a display element, a touch sensor, and a transistor between two flexible substrates. An external electrode that supplies a signal to the display element and an external electrode that supplies a signal to the touch sensor are connected from the same surface of one of the substrates.