Abstract: A light-emitting device and a display panel. A light-emitting color of the light-emitting device is a primary color of either red or green, and the light-emitting device includes: a light-emitting layer with a host material; a compensation layer for carrying holes and disposed on a hole injection side of the light-emitting layer; the light-emitting device has a starting state and an operating state, and a starting voltage of the light-emitting device in the starting state is lower than an operating voltage of the light-emitting device in the operating state; in the starting state, there is a first activation energy difference value ?Ea1 between activation energies of the host material and the compensation layer, and the first activation energy difference value ?Ea1<0 eV.

Abstract: A device for photo alignment includes: a bearing platform; a linearly polarized light source located at one side of the bearing platform; and a control assembly located between the linearly polarized light source and the bearing platform. One side of the bearing platform close to the control assembly is configured for placing a large plate glass to be aligned, and the large plate glass to be aligned includes a plurality of alignment areas; the linearly polarized light source is configured for providing a first polarized light to the control assembly; the control assembly is configured for adjusting a polarization direction of the first polarized light, and configured for providing a second polarized light to the plurality of alignment areas included in the large plate glass to be aligned; and polarization directions of the second polarized light respectively corresponding to at least two alignment areas are different.

Abstract: A display substrate and a display device. The display substrate includes a first display area and a second display area. A light transmittance of the second display area is lower than a light transmittance of the first display area. Among the sub-pixel groups of each pixel unit in the first display area, first electrodes of sub-pixels of sub-pixel groups of the pixel unit are electrically connected to corresponding pixel circuits through first connecting portions, and first electrodes of sub-pixels of the other sub-pixel groups of the pixel unit are electrically connected to corresponding pixel circuits through second connecting portions, the first connecting portions and the second connecting portions are disposed in different layers, and the second connecting portion and a plurality of first electrodes of a plurality of sub-pixels of the sub-pixel groups of the pixel unit are disposed in different layers.

Abstract: A light control sheet including a first transparent electrode layer, a second transparent electrode layer, a light control layer including a resin layer which is formed between the first and second transparent electrode layers and includes a liquid crystal composition in holes formed in the resin layer, the liquid crystal composition including liquid crystal molecules, and a first alignment layer formed between the first transparent electrode layer and the light control layer such that a haze of the light control layer is increased upon application of a voltage to the first transparent electrode layer. The light control layer includes a first high-density portion and a low-density portion, and the first high-density portion is in contact with the first alignment layer and includes the liquid crystal composition at a density higher than a density of the liquid crystal composition in the low-density portion per unit thickness of the light control layer.

Abstract: A quantum dot including a core including a semiconductor nanocrystal including a Group III-V compound; and a first semiconductor nanocrystal shell disposed on the semiconductor nanocrystal core, the first semiconductor nanocrystal shell including zinc, selenium, and optionally sulfur, and a second semiconductor nanocrystal shell disposed on the first semiconductor nanocrystal shell, the second semiconductor nanocrystal shell including zinc, sulfur, and optionally selenium, wherein the quantum dot does not include cadmium, an emission peak wavelength of the quantum dot is in a range of about 500 nanometers (nm) to about 550 nm, and an ultraviolet-visible absorption spectrum of the quantum dot includes a first exciton absorption peak and a second exciton absorption peak, a composition including the same, a composite, and an electronic device.

Abstract: The present invention relates to an assembly of switching layers for dimming and scattering of light and to window elements comprising the arrangement of switching layers.

Abstract: A display apparatus and a display method are provided. The display apparatus includes a display panel, a display film assembly, a privacy film assembly, and a light source. The display film assembly includes a first light guide plate and an optical film. The optical privacy film assembly includes a second light guide plate and a privacy film. The privacy film is configured to adjust divergent lights exiting the second light guide plate into privacy lights at a preset angle. The light source is configured to emit incident lights to be selectively irradiated to the first light guide plate or the second light guide plate, so that the display apparatus is able to switch between a normal display mode and a privacy display mode.

Abstract: A light source apparatus according to an aspect of the present disclosure includes a light emitter, a light guide member, a support member having a groove, and a position restriction member. The light guide member has a first surface and a second surface located at sides opposite from each other in a first direction, a third surface and a fourth surface located at sides opposite from each other in a second direction, and a fifth surface and a sixth surface located at sides opposite from each other in a third direction. The groove has a support surface facing the fourth surface, a first wall surface facing the fifth surface and separate from the fifth surface, and a second wall surface facing the sixth surface and separate from the sixth surface. The position restriction member includes a first placement section and a second placement section.

Abstract: In an optical emitter device, when point emitters are placed on the focal plane of a lens system, each individual point emitter will point to a specific free space angle depending on the position of the point emitter relative to the longitudinal central axis of the lens system. Point emitters comprising end-fire tapers combined with both a turning mirror and a micro-lens provide improved performance, because, unlike grating couplers, end-fire tapers enable uniform broadband operation with all possible polarization states. A turning mirror may be added to direct the light emission from the end-fire tapers to vertically upwards, which enables both a two-dimensional point emitter array and a more streamlined assembly process.

Abstract: The present application provides a display panel and an electronic device. A first sub-backlight module is arranged in a display area of the display panel, and a second sub-backlight module is arranged in an electronic component area. A light guide plate of the second sub-backlight module can be switched between a light-scattering state and a transparent state, so that the electronic component area can display images and take photos. The first light-shielding member is arranged in an accommodating space defined by the display panel body and the backlight module to avoid light leakage during shooting, so that full-screen display can be realized without light leakage.

Abstract: A display comprises a film-based lightguide, a light source positioned to emit light into the lightguide, and a light turning film with light turning features comprising a first surface with a first coating of a first material with a first refractive index that redirects light extracted from lightguide toward a reflective spatial light modulator wherein the light turning features also comprise a second surface that does not comprise a coating of the first material or comprises a coating of a thickness of the first material less than 500 nanometers. The light turning film may comprise a base layer of a second material with a second refractive index, and the first refractive index is less than the second refractive index. The first surface may be an angled planar surface oriented at an angle the surface of the light turning film or comprise a curved surface.

Abstract: A display device includes an optical module, a light emitting structure, a lower substrate including a display area, and in order within the display area a first area corresponding to the optical module, second area adjacent to the optical module, and a third area including the light emitting structure, a light-transmitting filling layer in the first area and corresponding to the optical module, a light blocking layer in the second area and defining an opening corresponding to the light-transmitting filling layer in the first area, and an upper substrate facing the lower substrate with the light emitting structure and the light blocking layer therebetween.

Abstract: A system may have a display that includes a plurality of light sources such as light-emitting diodes. The display may be an exterior display that is routinely operated in daytime conditions where ambient light levels are very high. To increase contrast in an exterior display, the display may include a sunlight blocking element. A static sunlight blocking element may include a louver film with asymmetric light blocking portions. The system may include an ambient light sensor that is configured to determine ambient light levels. Based on the detected ambient light level, control circuitry in the system may adjust one or more adjustable components in the display. The display may include an adjustable diffuser that has at least two states with different haze levels. The display may include an adjustable tint layer that has at least two states with different transmission levels.

Abstract: A display panel and a display device are disclosed. The display panel includes a photoresist layer, a liquid crystal layer, and a total reflection layer. Liquid crystal molecules included in the liquid crystal cells have a first refractive index and a second refractive index. The first refractive index is greater than the second refractive index, and a refractive index of the total reflection units matches with the first refractive index. The display panel and the display device not only have advantages of low manufacturing cost and eye protection, but can also achieve color and dynamic display.

Abstract: A verification fixture of a curved screen is disclosed. The verification fixture of the curved screen includes a support structure, a backlight module, and an adjusting module. The verification fixture of the curved screen can use the adjusting module to adjust positions of backlight blocks, thereby allowing the verification fixture of the curved screen to have curves having different target curvatures. Therefore, various backlight modules having different curvatures are not needed to assemble with display panels when performing a black screen test on the display panels.

Abstract: There is provided a dual camera apparatus, an electronic apparatus including the same, and a method of operating the same are disclosed. The dual camera apparatus includes a first camera that acquires an entire image of a subject; and a second camera different than the first camera. The second camera includes a first light source, an optical element concentrates light emitted from the first light source onto a portion of a region of the subject and an image sensor that records spectrum information with respect to the portion of the region of the subject.

Abstract: A backlight includes an extended light source adapted to emit light. A reflective polarizer is disposed on the extended light source, such that for substantially normally incident light and for at least a first wavelength in a range from about 420 nanometer (nm) to about 650 nm, the reflective polarizer reflects at least 60% of the incident light having a first polarization state and transmits at least 60% of the incident light having an orthogonal second polarization state. A first prismatic film is disposed between the extended light source and the reflective polarizer. A retarder layer is disposed between the reflective polarizer and the first prismatic film, such that for substantially normally incident light at a wavelength of about 550 nm, the retarder layer has a retardance nW, where n is an integer ?1 and W is a wavelength between about 160 nm and about 300 nm.

Abstract: A color-converting substrate includes a color-converting part including a wavelength-converting particle configured to change a wavelength of an incident light to emit a light having a color different from the incident light, a color filter pattern filtering the light emitted from the color-converting part, and a light-reflective layer disposed between the color-converting part and the color filter pattern to selectively reflect a light having a wavelength same as the wavelength of the incident light.

Abstract: The present disclosure relates to a function display for selectively displaying symbols representing switching states for a motor vehicle including a light guide stack of at least two transparent or translucent, planar light guides arranged in an overlaid manner in a stacking direction, which are spaced apart by a transparent or translucent layer including a material that is optically thinner compared to the adjacent light guides so that the light guides have a main surface facing towards an observer and a main surface facing away from the observer that faces towards a light guide which is most closely adjacent in stacking direction; at least one light source per light guide arranged to couple light into the respective light guide via an end face; wherein one light-refractive and/or light-scattering microstructured portion per light guide, which is provided in or on the light guide, is provided for generating a symbol display.

Abstract: A quantum dot-polymer composite including a polymer matrix; and core-shell quantum dots dispersed in the polymer matrix, wherein the core-shell quantum dots include a semiconductor nanocrystal core including indium, zinc, and phosphorus and a semiconductor nanocrystal shell disposed on the semiconductor nanocrystal core, the shell including zinc, selenium, and sulfur. The core-shell quantum dots do not include cadmium, the core-shell quantum dots are configured to emit green light, the core-shell quantum dots have a mole ratio of phosphorus to indium of greater than or equal to about 0.75, and the core-shell quantum dots have a mole ratio of zinc to indium of greater than or equal to about 35, and a method of producing the core-shell quantum dots, and a display device including a light emitting element that includes the quantum dot-polymer composite.