In an embodiment, a display device comprises a display panel and a backlight unit. The backlight unit comprises a printed circuit, a light-emitting device on the printed circuit, and a transparent film including a holographic film. The holographic film includes at least an optical pattern overlapping the light-emitting device and modifying angle of a portion of light emitted by the light-emitting device. The backlight unit further comprises a light output pattern, where the portion of light with the modified angle passes through the light output pattern toward the display panel. The light output pattern may have a refractive index greater than a refractive index of the transparent film such that a refraction angle of the portion of light exiting the light output pattern is less than the incidence angle of the portion of light entering the light output pattern.

A light source device includes: a substrate; a light source on the substrate, the light source emitting light in a direction away from the substrate; an optical element covering the light source on an opposite side of the light source from the substrate to control distribution of the light emitted by the light source; and a light absorption member that absorbs light, wherein the optical element has a bottom face on a substrate side thereof and a light-exiting face on an opposite side of the bottom face from the substrate, the optical element transmits the light emitted by the light source so that the transmitted light exits the optical element through the light-exiting face, and the light absorption member is disposed between the substrate and the bottom face.

A light-emitting device has improved impact resistance over conventional configurations. Such a light-emitting device includes a display panel layer, a housing layer, an impact absorbing layer adjacent the housing layer, a metal layer that is disposed between the impact absorbing layer and the display panel layer and that is deformable during an impact on the light-emitting device, and a compliant layer that is disposed between the metal layer and the display panel layer that enables a shape of the display panel layer to be maintained when the metal layer is deformed. Due to a compliance or low stiffness of the compliant layer, a permanent deformation of the metal layer due to an impact or device shape change is not discernibly transferred into the shape of the display panel layer, and the shape of the display panel layer is essentially maintained so that an impact or shape change does not adversely affect display performance.

A backlight module includes a backlight assembly and a light-shielding tape attached to an edge of the backlight module; the light-shielding tape includes a first adherent portion, a second adherent portion and a third adherent portion that are continuously disposed, wherein the first adherent portion is attached to an upper surface of the backlight assembly, the second adherent portion is attached to a side surface of the backlight assembly, and the third adherent portion is attached to a lower surface of the backlight assembly.

A liquid crystal display panel includes a light adjusting layer. The light adjusting layer is configured to reduce a yellowing degree of a peripheral display area. The light adjusting layer is located in the peripheral display area in a display area of the liquid crystal display panel, and the peripheral display area is located at a periphery of an intermediate display area in the display area.

The invention provides a display device in which the tint is difficult to observe in a case where white display is visually confirmed from a front direction, and the tint is also difficult to observe at any azimuthal angle in a case where white display is visually confirmed from an oblique direction. A display device of the invention includes, from a viewing side, an anisotropic light absorbing layer and a self light emitting display element which emits at least red light, green light, and blue light, the self light emitting display element has a microcavity structure, the anisotropic light absorbing layer is formed of a composition containing a dichroic substance and a liquid crystal compound, the dichroic substance has a maximum absorption wavelength of 400 to 500 nm, and the anisotropic light absorbing layer satisfies a requirement represented by Expression (1) and a requirement represented by Expression (2).

1.50<Amax(60)/A(0)Expression (1)

1.00Amax(60)/Amin(60)1.20Expression (2)

The present disclosure relates to a display device including a process key, and more particularly, to a process key with an improved recognition rate in a display device implementing a narrow bezel. The feature of the present disclosure is such that a process key is divided into and formed as a first key pattern made of a metal material and a second key pattern made of a black matrix material, and the process key is positioned in a green pixel area in which a green color filter pattern is provided among pixels positioned at outermost peripheries corresponding to four corners of an active area of a display panel such that a narrow bezel can be implemented and a recognition rate of the process key can also be improved. Consequently, the display panel can be accurately aligned with manufacturing equipment or other objects such that a process defect can be minimized and process efficiency cab also be improved. Further, the process key can be recognized from both upper and lower sides of the display panel so that the process can be improved.

There is provided a display apparatus with an improved viewing angle. The display apparatus includes a display panel configured to receive light from a light source module, wherein the display panel includes: a liquid crystal panel; a first polarizing plate positioned on a rear side of the liquid crystal panel and a second polarizing plate positioned on a front side of the liquid crystal panel; and an optical layer positioned on a front surface of the second polarizing plate, wherein the optical layer includes: a resin layer having a first refractive index, and including an accommodating groove in which a light adjusting portion is disposed, the resin layer further including a light refractive pattern protruding toward a rear direction of the display panel; and an adhesive layer having a second refractive index different from the first refractive index, and bonding the resin layer with the second polarizing plate.

Provided is a display device with enhanced uniformity of brightness. The display device includes a display panel, and a backlight unit configured to supply light to the display panel, wherein the display panel includes a liquid crystal panel with first and second surfaces opposite to each other, a first polarizing plate arranged on the first surface of the liquid crystal panel, a second polarizing plate arranged on the second surface of the liquid crystal panel, a light absorbing layer arranged on the second polarizing plate to absorb a portion of the light supplied from the backlight unit, and a light absorbing material included in the light absorbing layer to absorb light of particular wavelengths.

A liquid crystal display device includes a light source member and a display panel disposed on the light source member. The display panel includes a first substrate and a second substrate facing each other, a liquid crystal layer, and a color conversion layer that is disposed between the liquid crystal layer and the first substrate. The color conversion layer includes a light emitter and a low refractive body having a refractive index of about 1.0 to about 1.3. The liquid crystal display device exhibits high color reproducibility and improves external light extraction efficiency.