The lighting device disclosed in the embodiment includes a substrate, a light emitting device disposed on a lower surface of the substrate, a reflective layer disposed to face a light emitting surface of the light emitting device, a first resin layer disposed between the substrate and the reflective layer, and a light-transmission control layer disposed on an upper surface of the substrate, wherein the light-transmission control layer may include a liquid crystal layer including a cholesteric liquid crystal, and light emitted through the light emitting surface of the light emitting device may be reflected by the reflective layer and be provided to the light-transmission control layer through the substrate.

Disclosed is a composite optical film, including a first sealing film and a second sealing film disposed in opposite to each other; a cholesterol LC brightness enhancement film interposed between the first and second sealing film; and a quantum dot (QD) film interposed between the cholesterol LC brightness enhancement film and the second sealing film, thereby integrating the cholesterol LC brightness enhancement film and QD film. By encapsulating the cholesterol LC brightness enhancement film and the QD film between the watertight and oxygen-tight first and second sealing film, the reliability of the cholesterol LC brightness enhancement film and the QD film on the durability against water and oxygen is enhanced. Besides, because the cholesterol LC brightness enhancement film can repeatedly emit light to excite quantum dots of the QD film for increasing the utilization of quantum dots, the concentration of quantum dots in QD film and manufacturing cost are reduced.

A polarizing plate includes: a polarizer; a pattern layer on one surface of the polarizer, the pattern layer including a first refractive index layer having at least one engraved pattern and a second refractive index layer having a filling pattern filling at least a portion of the engraved pattern, the first refractive index layer having a higher refractive index than the second refractive index layer; and a first protective layer. The polarizing plate has a structure in which the polarizer, the second refractive index layer, the first refractive index layer and the first protective layer are sequentially stacked in that order, or in which the polarizer, the first protective layer, the second refractive index layer and the first refractive index layer are sequentially stacked in that order. The first protective layer includes a base film including at least one resin of triacetylcellulose, polyethylene terephthalate, cyclic olefin polymer, and acrylic resins.

A display system including a backlight including a housing receiving light emitting elements to generate and project light from the backlight and reflective portions disposed on the housing is described. A first display unit is disposed proximate the backlight and may include an upper substrate, a liquid crystal layer, and a lower substrate disposed opposite the upper substrate. A reflective polarizer may cooperate with one or more of the upper substrate and the lower substrate of the first display unit. A second display unit is disposed proximate the first display unit. The second display unit may include an upper substrate, a thin-film transistor (TFT) display layer cooperating with the upper substrate and a lower substrate disposed opposite the upper substrate that cooperates with the TFT display layer. A linear polarizer may cooperate with one or more of the upper substrate and the lower substrate of the second display unit.

Aspects of the disclosed apparatuses, methods, and systems provide enhanced display of images for personal wearable display devices. The display systems include various system components to implement one or more of: re-directing the maximal brightness of a display device towards the center of the eye-box of a user; selectively narrowing the viewing angle of light emitted by the display device; and by spatially optimizing the backlight of the display device based on the specification of the wearable optical system thereby optimizing and/or maximizing the amount of light entering the eye for a range of gaze rotation of a user of the wearable display system. In one example, the following description provides a display device including a light optimizing or directing layer. The light optimizing layer includes one or more films that optimize the amount of light directed to the eye box of a user of the wearable display system. The light optimizing layer may include one or more films positioned to direct light from the image source and illumination source in a desired manner.

The lighting device disclosed in the embodiment includes a substrate, a light emitting device disposed on a lower surface of the substrate, a reflective layer disposed to face a light emitting surface of the light emitting device, a first resin layer disposed between the substrate and the reflective layer, and a light-transmission control layer disposed on an upper surface of the substrate, wherein the light-transmission control layer may include a liquid crystal layer including a cholesteric liquid crystal, and light emitted through the light emitting surface of the light emitting device may be reflected by the reflective layer and be provided to the light-transmission control layer through the substrate.

Provided are an optical film, a method for manufacturing an optical film, and a liquid crystal display. An optical film includes: a polarizer, a diffusion sheet adhered to a bottom surface of the polarizer, the diffusion sheet including: a first diffusion member, and a second diffusion member adhered to the first diffusion member, and a prism sheet adhered to a bottom surface of the diffusion sheet.

A display device is disclosed. The display device includes display unit and a negative refractive index functional layer on the display unit. The negative refractive index functional layer has a negative refractive index with respect to light from the display unit. A method for fabricating the display device is also disclosed.

The present invention provides an optical film. The optical film includes a first light-guiding layer, a second light-guiding layer, and at least one light absorption member. The first light-guiding layer has a first light incident surface, a first light-emitting surface, and an accommodating recessed portion formed on the first light incident surface. The second light-guiding layer is disposed on the first light incident surface, and has a second light incident surface, a second light-emitting surface, and a light-guiding member formed on the second light-emitting surface. Each light-guiding member is disposed on each accommodating recessed portion respectively, and each light-guiding member has a top portion, a bottom portion, and a side surface connecting the top portion and the bottom portion. The side surface of the light-guiding member faces the inner wall surface of the accommodating recessed portion, and the bottom portion of the light-guiding member corresponds to the opening of the accommodating recessed portion. The light absorption member covers the side surface. The first light-guiding layer has a first refractive index, and the second light-guiding layer has a second refractive index less than the first refractive index.

Provided is a liquid crystal display element capable of reducing the decrease in light utilization efficiency caused by the increase in definition.

A liquid crystal display element includes: a drive substrate having pixel electrodes having light-reflective properties and arranged in a matrix; a counter substrate arranged opposite to the drive substrate; and a liquid crystal material layer sandwiched between the drive substrate and the counter substrate, in which the pixel electrodes are arranged on a display surface side of the drive substrate in a state of being separated from each other with a slit portion interposed therebetween, an entire surface including surfaces on the pixel electrodes is covered with a first dielectric film formed on the pixel electrodes and a second dielectric film formed in the slit portion, and the second dielectric film has a hollow portion extending along the slit portion.