A surface light source and a manufacturing method thereof and a liquid crystal display device. The surface light source includes a substrate; a plurality of light emitting diode dies arranged in an array along a row direction and a column direction on the substrate; a driving circuit on the substrate and electrically connected to the plurality of light emitting diode dies and the driving circuit being configured to control at least two of the plurality of light emitting diode dies to emit light independently of each other; and an encapsulation layer on a side of the plurality of light emitting diode dies away from the substrate. The encapsulation layer is a continuous film layer covering the plurality of light emitting diode dies.

A backlight module including a substrate, light-emitting elements, an optical element, first microstructures, and second microstructures is provided. The light-emitting elements are disposed on the substrate. The light-emitting elements are located between the optical element and the substrate. The first microstructures are located between the optical element and the light-emitting elements and respectively shield the light-emitting elements. The optical element is located between the second microstructures and the first microstructures. An area of each of the first microstructures is greater than an area of each of the second microstructures. Moreover, a display apparatus including the backlight module is also provided.

Disclosed are an optical member, a display device having the same, and a method of fabricating the same. The optical member includes a receiving part having an empty space therein, a host in the receiving part, a plurality of wavelength conversion particles in the host, a sealing part in the receiving part, and a pre-treatment layer between the sealing part and an inner surface of the receiving part.

A light source device includes: a substrate; a plurality of light sources disposed on the substrate; a wavelength conversion member disposed to face the plurality of light sources; and a diffusion member disposed between the wavelength conversion member and the plurality of light sources, and configured to uniformize distribution of traveling direction angle of incident light.

A lighting device includes a lighting unit emitting an output light having a light spectrum. The light spectrum in a range from 520 nm to 780 nm has a main peak, and the light spectrum in a range from 400 nm to 470 nm has a sub peak with a maximum intensity at a first wavelength. A first sub peak integral is an integral of the light spectrum calculated from a wavelength of the first wavelength minus 20 nm to the first wavelength. A second sub peak integral is an integral of the light spectrum calculated from the first wavelength to a wavelength of the first wavelength plus 20 nm. A ratio of the first sub peak integral to the second sub peak integral is in a range from 20% to 98%.

Provided is a backlight unit including a light source, an encapsulation layer, and a green quantum dot film. The light source emits a blue light. The encapsulation layer encapsulates the light source. The encapsulation layer includes red phosphors and yellow phosphors. The green quantum dot film is disposed above the light source and the encapsulation layer. The blue light is transmitted through the encapsulation layer and the green quantum dot film to generate a white light. A display device including the said backlight unit is also provided.

The invention provides a liquid crystal display device, a polarizer, and a protective film that enable suppression of the occurrence of rainbow unevenness to improve visibility in a liquid crystal display device including a backlight light source comprising white-light-emitting diode having an emission spectrum that has one or more peak tops in each of the blue region (400 nm or more and less than 495 nm), the green region (495 nm or more and less than 600 nm), and the red region (600 nm or more and 780 nm or less). The protective film contains a polyethylene terephthalate-based resin film that has a retardation of 3000 to 30000 nm, wherein the CTF value of periodic unevenness of the x value of chromaticity at an observation angle of 55 degrees is 1.2 or less.

A backlight module includes a back plate, an optical element set, a wavelength conversion film, a light source, and an ink layer. The optical element set is disposed on the back plate and has a first surface, a second surface and at least one end surface. The first surface faces the back plate and is opposite to the second surface. The at least one end surface is connected to the first surface and the second surface. The wavelength conversion film is disposed on the back plate. The light source is adapted to provide light, and the light is transmitted to the wavelength conversion film and the optical element set. The ink layer is disposed on the at least one end surface of the optical element set. A display device is further provided. The backlight module and the display device may reduce the phenomenon of blue edge caused by light leakage.

A light-emitting device includes: a plurality of light sources configured to he disposed on a substrate; a light diffusion member configured to commonly cover the plurality of light sources; and. a plurality of wavelength conversion members configured to be disposed between the light sources and the light diffusion member in a thickness direction and disposed in regions corresponding to the plurality of light sources in a plane, respectively, and. configured to convert light with a first wavelength from the light sources into light with a second wavelength.

A backlight module includes a back plate, an optical element set, a wavelength conversion film, a light source, and an ink layer. The optical element set is disposed on the back plate and has a first surface, a second surface and at least one end surface. The first surface faces the back plate and is opposite to the second surface. The at least one end surface is connected to the first surface and the second surface. The wavelength conversion film is disposed on the back plate. The light source is adapted to provide light, and the light is transmitted to the wavelength conversion film and the optical element set. The ink layer is disposed on the at least one end surface of the optical element set. A display device is further provided. The backlight module and the display device may reduce the phenomenon of blue edge caused by light leakage.