The present disclosure relates to a light-emitting device (100), comprising a dielectric layer (110) including a plurality of first quantum dots (112) embedded therein, wherein the plurality of first quantum dots (112) is configured to emit light of a first color; and a metamaterial structure (120) embedded in the dielectric layer (110), wherein the metamaterial structure (120) is configured to convert at least a portion of an energy released by the plurality of first quantum dots into surface plasmons.

An optical filter includes a substrate, a filter layer on the substrate and including color filters, and a light-converting layer over the filter layer and including light-converting portions respectively corresponding to the color filters. A low refractive index layer is between the filter layer and the light-converting layer and has a refractive index less than a refractive index of the light-converting layer. A first capping layer is between the low refractive index layer and the light-converting layer and has a refractive index ranging between the refractive index of the light-converting layer and the refractive index of the low refractive index layer.

A display apparatus includes a display panel and a backlight module. The backlight module includes: a back plate, a micro light emitting diode light board, and a diffusing plate bracket. The micro light emitting diode light board includes a plurality of through holes, the diffusing plate bracket is arranged in the through holes and fixed on the back plate via the through holes.

A display module is provided. In the display module, a liquid crystal display panel has a plurality of display subareas. A color backlight module has a plurality of backlight subareas in a one-to-one correspondence to the plurality of display subareas. A driving apparatus may sequentially drive liquid crystal molecules in the display subareas to turn over, and after driving the liquid crystal molecules in each display subarea to turn over, drive a light-emitting element of one color included in each backlight source in one corresponding backlight subarea to emit light.

A stacked-screen display device and a method for controlling a display device are provided. The stacked-screen display device includes a backlight module, a light control panel and a display panel which are stacked in sequence, where the backlight module includes a backplane, a reflector and a diffuser which are stacked in sequence, and the reflector is provided with a plurality of light-emitting units, the backlight module is provided with temperature sensors, the temperature sensors are configured to detect the temperature of the backlight module to compensate the display panel according to the temperature.

Embodiments of the present disclosure are related to a backlight unit and a display device including the same, the backlight unit that a light source unit including a light source, and a light reflector surrounding the light source, and including at least one of a light reflection pattern, a light diffusion pattern, or a light source protection layer including a color conversion material is disposed can be provided. As an exposed electrode layer on a substrate is covered by the light reflector, a light efficiency can be improved by reducing a reflection loss by the electrode layer, and by various functions that the light source unit provides, a fabrication efficiency the backlight unit can be improved and the backlight unit having a thin thickness can be provided.

Embodiments of the present disclosure are related to a backlight unit and a display device, and the backlight unit in which an optical plate including an engraved pattern in which a color conversion material is disposed is positioned on a light source can be provided. As the color conversion material is disposed in the engraved pattern, a change of the color conversion material by an external factor can be prevented and an amount of the color conversion material can be reduced, thus the backlight unit providing an image quality greater or equal to a certain level and with improved reliability can be implemented easily.

The present disclosure provides an electronic device including a driving circuit substrate, a plurality of chips, and a passivation layer. The driving circuit substrate includes a plurality of active elements. The chips are disposed on the driving circuit substrate and electrically connected to the driving circuit substrate. The passivation layer covers the plurality of chips and the driving circuit substrate. The passivation layer has a first part on one of the plurality of chips and a second part on a part of the driving circuit substrate, the second part is not overlapped with the plurality of chips, and a first thickness of the first part is less than a second thickness of the second part. The first space between adjacent two of the plurality of chips is different from a second space between another adjacent two of the plurality of chips.

A display device is provided, including a substrates, a circuit board, and a plurality of wires. The substrates has an upper surface, a lower surface opposite to the upper surface, and a first side connecting the upper surface and the lower surface. The circuit board is disposed on the upper surface, and the plurality of wires is disposed on the upper surface and electrically connects the circuit board. The first side has a vertical portion and a first inclined portion, the vertical portion is substantially vertical to the upper surface and a portion is concave in a cross-sectional view. An included angle between the first inclined portion and the lower surface is greater than 90 degrees and less than 180 degrees, and the first inclined portion is greater than the vertical portion in roughness.

A power reduced display includes a light source having an available space and configured to generate a backlight, a first display having multiple first pixels, wherein each first pixel is configured to selectively pass and block the backlight, a second display having multiple second pixels. The light source includes a first number of first packages each having a single light-emitting diode. The first number is a largest number of the first packages that fit in the available space of the light source. The first number of the first packages is configured to consume a first power to produce a particular luminance. A second number of second packages each having two light-emitting diodes alternatively fit in the available space and is configured to consume a second power to produce the particular luminance. The first number is greater than the second number. The first power is less than the second power.