A method includes depositing a layer comprising a photoinitiator and a curable material onto a surface and applying a nanoimprint mold on the layer of curable material to form a mesh comprising intersecting walls defining cavities. After applying the nanoimprint mold, the mesh is illuminated with light causing decarboxylation of the photoinitator to initiate curing of the curable material. After curing the curable material, the nanoimprint mold is removed and a wavelength converting material is deposited in the cavities to form an array of wavelength converting pixels.

A backlight and a liquid crystal display. The backlight includes: a circuit substrate, a plurality of LED chips and a first silica gel layer. The plurality of LED chips are fixed by means of die bond on the circuit substrate, and the first silica gel layer is applied to the circuit substrate and wraps the plurality of LED chips. The first silica gel layer makes light emitted by the LED chips more diffuse, thus enhancing light emission uniformity of the backlight and reducing a thickness of a backlight module.

A nano-structure layer is disclosed. The nano-structure layer includes an array of nano-structure material configured to receive a first light beam at a first angle of incidence and to emit the first light beam at a second angle greater than the first angle, the nano-structure material each having a largest dimension of less than 1000 nm.

The disclosure provides a display device including red, green and blue pixel units. In the red pixel unit, a light emitting element emits a blue light that then passes through a light conversion element and a color filter and the blue light is converted into a red light while passing through the light conversion element. In the green pixel unit, a light emitting element emits a blue light that then passes through a light conversion element and a color filter and the blue light is converted into a green light while passing through the light conversion element. In the blue pixel, a light emitting element emits a blue light that then passes through a color filter. The red pixel unit has a lighting area greater than a lighting area of the blue pixel unit and less than a lighting area of the green pixel unit.

There are provided a display device and a method of manufacturing the display device. The display device includes: electrodes spaced apart from each other; light emitting elements disposed between the electrodes; and connection electrodes disposed on the light emitting elements. Each of the connection electrodes includes a first conductive layer and a second conductive layer disposed on the first conductive layer, and a work function of the first conductive layer is lower than a work function of the second conductive layer.

Provided herein is a display device and a method of fabricating the display device. The display device includes a substrate including a display area and a non-display area, a via layer disposed in the display area, electrodes disposed on the via layer and spaced apart from each other, light emitting elements disposed between the electrodes, dummy pattern layers disposed in the non-display area, and dummy electrodes disposed on the dummy pattern layers. The via layer and the dummy pattern layers may be disposed on a same layer. The electrodes and the dummy electrodes may be disposed on a same layer.

An ink composition comprising a nanomaterial and a liquid vehicle, wherein the liquid vehicle comprises a composition including one or more functional groups that are capable of being cross-linked is disclosed. An ink composition comprising a nanomaterial, a liquid vehicle, and scatterers is also disclosed. An ink composition comprising a nanomaterial and a liquid. vehicle, wherein the liquid vehicle comprises a perfluorocompound is further disclosed. A method for inkjet printing an ink including nanomaterial and a liquid vehicle with a surface tension that is not greater than about 25 dyne/cm is disclosed. In certain preferred embodiments, the nanomaterial comprises semiconductor nanoerystals. Devices prepared from inks and methods of the invention are also described.

A lighting device contains light-emitting elements and has an elongated shape. The lighting device has a housing that has reflective side walls extending in a longitudinal direction of the housing; a cavity formed between the reflective side walls; and light-emitting elements arranged at least partially along the longitudinal direction relative to each other in the cavity. An opening of the cavity forms a light-emitting area, A width of the cavity expands from the light-emitting elements towards the opening at least in sections. A reflective element covers at least a section of the opening and reflects a part of light emitted from the light-emitting elements towards the cavity and reduces a width of the light-emitting area compared to a width of the opening.

There is provided a light emitting diode, LED, filament lamp (100) which provides LED filament lamp light (100′). The LED filament lamp (100) comprises at least one LED filament (101) which has a LED filament length (L) which extends from a first end (1003) to a second end (1004). The at least one LED filament (101) provides LED filament light (101) and comprises an array (102) of a plurality of LEDs (103) and an encapsulant (104). The array (102) of a plurality of LEDs (103) provide LED light (103′) and extend along the LED filament length (L). The encapsulant (104) is at least partially enclosing the plurality of LEDs (103). The encapsulant (104) comprises a light scattering material (105). In the direction from the first end (1003) to the second end (1004) at least one of (i) the thickness (TL) of the encapsulant (104), and (ii) the concentration (CL) of the light scattering material (105) in the encapsulant (104), along the LED filament length (L) increases over at least two adjacent first LEDs (106) and decreases over at least two adjacent second LEDs (107) different from the at least two adjacent first LEDs (106), and wherein the thickness (TL) and/or concentration (CL) firstly increases and secondly decreases at least along a portion of the LED filament length (L).

A radiation-emitting device includes a semiconductor layer sequence having an active layer that emits a primary radiation during operation, a decoupling surface on a surface of the semiconductor layer sequence, a wavelength conversion layer on a side of the semiconductor layer sequence facing away from the decoupling surface, containing at least one conversion material that converts the primary radiation into secondary radiation, and a mirror layer on the side of the wavelength conversion layer facing away from the semiconductor layer sequence, wherein the at least one conversion material is electrically conductive and/or embedded in an electrically conductive matrix material.