A transparent LED display includes a transparent substrate, pairs of electrodes arranged in an array on the transparent substrate, LEDs each arranged between a corresponding one of the pairs of electrodes, and apertures provided on the transparent substrate, the apertures being areas free of the electrodes and allowing light to pass through, wherein the LEDs are arranged on both of a first surface and a second surface of the transparent substrate, and each of the electrodes on the second surface is arranged in a second surface shielding region including a region that shields a light path extending from one of the LEDS arranged on the first surface through the transparent substrate, and each of the electrodes on the first surface is arranged in a first surface shielding region including a region that shields a light path extending from the LEDs on the second surface through the transparent substrate.

The backlight unit according to an embodiment comprises: a base substrate including circuit wiring; a plurality of light-emitting diodes disposed to form an array on the base substrate; a diffusion layer located laterally around the individual light-emitting diodes; and correcting lenses located on top of the respective light-emitting diodes, and can provide uniform white light in all directions through uniform light distribution by reducing color difference for different viewing angles that occurs due to the structure of a semiconductor light-emitting diode.

A circuit board includes a base having a plurality of interconnections on an upper surface thereof, a first photosensitive solder resist (PSR) covering the interconnections and defining a pad open region exposing portions of the interconnections, a second PSR covering the first PSR and having an opening exposing the pad open region. The opening of the second PSR is larger than the pad open region of the first PSR.

A method of manufacturing a light-transmissive member includes: providing a member including: a base having light transmissivity, the base having a first surface, a second surface opposite to the first surface, and a first film disposed on the first surface, the first film containing a substance removable by an acidic substance; and obtaining a light-transmissive second film having voids by bringing the first film into contact with the acidic substance. The first surface of the base includes a first region and a second region adjacent to the first region. A light transmittance of the first region is higher than a light transmittance of the second region. A thickness of the second film located in the second region is less than a thickness of the second film located in the first region.

An electronic apparatus includes a display panel, and a window member disposed on the display panel. The window member may include a support film, a coating window disposed on the support film, and a light-blocking pattern spaced apart from the coating window with the support film disposed therebetween. The light-blocking pattern may be formed of a light-blocking composition including a black colorant, an ultraviolet photoinitiator, a near-infrared photosensitizer, a near-infrared photoinitiator, and an adhesive resin.

A pixel unit of a display includes a lighting module and a filtering module. The lighting module includes three lighting chips spaced apart from each other. The filtering module includes a planarization layer and a light adjustment layer that is disposed on the planarization layer and that is located between the planarization layer and the lighting module. The planarization layer has three light-transmissive regions respectively correspond in position to the three lighting chips and a light-blocking region that surrounds the three light-transmissive regions. The light adjustment layer includes two quantum dot wavelength conversion portions and a first light-intensity adjustment portion. The two quantum dot wavelength conversion portions respectively correspond in position to two of the three light-transmissive regions, and the first light-intensity adjustment portion corresponds in position to another one of the three light-transmissive regions.

A display device includes a display area in which a first pixel and a second pixel are disposed. Each of the first pixel and the second pixel includes first to third light emission areas. A first light blocking layer is disposed in the display area and corresponds to the second pixel. A plurality of color filters are disposed on the first light blocking layer. A second light blocking layer is disposed on the color filter. The second light blocking layer includes a plurality of holes overlapping the first to third light emission areas of each of the first pixel and the second pixel. The first light blocking layer includes first to third light blocking patterns surrounding the first to third light emission areas, respectively.

A display device may include a substrate, a pixel driving circuit on the substrate, a plurality of light-emitting elements over the pixel driving circuit and electrically connected to the pixel driving circuit, an optical layer including at least one layer covering the plurality of light-emitting elements, a black matrix including at least one layer disposed on the optical layer, a cover layer covering the black matrix, and a cover member disposed on the cover layer.

A light emitting apparatus may include a housing having a cavity open at an upper side thereof, a light source disposed in the cavity of the housing and emitting light, and a lens disposed on the housing and including a light incidence and a light exit. The lens may include a first optical region comprising a curved surface having a diameter gradually decreasing from bottom to top and a second optical region disposed under the first optical region, the second optical region having a flat side surface. A maximum diameter of the first optical region is less than or equal to a maximum diameter of the second optical region. A light beam angle of the lens is narrower than a light beam angle of the light source, and the light beam angle of the lens is less than 90 degrees.

A display device includes a substrate; one or more buffer layers disposed on the substrate; an adhesive layer disposed on the buffer layer; a pixel driving circuit disposed on the adhesive layer; a protective layer which is disposed on the adhesive layer and of which a part is disposed on the pixel driving circuit; and a plurality of light-emitting elements electrically connected to the pixel driving circuit.