A system and method are provided for forming body structures including energy filters/shutter components, including energy/light directing/scattering layers that are actively electrically switchable. The filters or components are operable between at least a first mode in which the layers, and thus the presentation of the shutter components, appear substantially transparent when viewed from an energy/light incident side, and a second mode in which the layers, and thus the presentation of the energy filters or shutter components, appear opaque to the incident energy impinging on the energy incident side. The differing modes are selectable by electrically energizing, differentially energizing and/or de-energizing electric fields in a vicinity of the energy scattering layers, including electric fields generated between a pair of transparent electrodes sandwiching an energy scattering layer. Refractive indices of transparent particles, and the transparent matrices in which the particles are fixed, are tunable according to the applied electric fields.

The present invention relates to a current-light conversion device (1), such as an OLED or an OPVD, wherein the current-light conversion device comprises a substrate (10), a current-light conversion arrangement (11) comprising a current-light conversion material (111) provided between a first and a second electrode layer (110, 112), and a barrier layer (12) comprising a transparent organic layer (121) provided between a first and a second transparent inorganic barrier layer (120, 122). A getter material is provided in the transparent organic layer (121) in a pattern of getter dots (1210). Since the getter material is provided in a pattern of getter dots (1210), the light scattering effect resulting from dispersed getter particles can be avoided, resulting in improved transparency characteristics of the barrier layer (12) while still providing the desired getter functionality.

A pattern projector disclosed herein generates and projects a structured light pattern suitable for use in a variety of active depth sensing technologies. In one implementation, a structured light pattern is generated by directing a coherent light beam through a pseudorandom diffuser element. Output of the pseudorandom diffuser element is received by a relay optic configured to spatially filter incident light to generate an output speckle illumination and to project the output speckle illumination to a three-dimensional scene.

A polarizing plate and a liquid crystal display including the same are provided. A polarizing plate includes a polarizing film and a contrast-improving optical film sequentially stacked in the stated order. The contrast-improving optical film includes a contrast-improving layer including a first resin layer and a second resin layer facing the first resin layer. The second resin layer includes a patterned portion having optical patterns and a flat section between the optical patterns. The second resin layer satisfies Equation 1, and the polarizing plate has a contrast ratio gain of about 1.00 or more, as represented by Equation 2.

An electronic device is provided. The device comprises a display module comprising an active area configured to emit light, and a window layer attached to the display module. The window layer comprises: a transparent area positioned above at least the active area of the display module, an area extending outwards relative to the active area of the display module, and an optical pattern configured to direct the light emitted by the active area of the display module near the edges of the active area towards the area of the window layer extending outwards.

A light source system and a lighting apparatus comprising: a light-emitting module which emits first light along a first light path and second light along a second light path; a wavelength conversion device which received the first light to emit excited light with a different color from that of the first light; and a compensation device which guides the second light and adjusts a luminous intensity distribution of the second light so that the luminous intensity distribution of the second light exiting from the compensation device is substantially identical to that of the excited light. The second light exiting from the compensation device is combined with the excited light to form third light to be emitted from the light source system. The luminous intensity distributions of the first light and the second light in the third light are substantially the same, and illumination light spots have a uniform color.

An embodiment may provide a method for synchronizing a field of view of a distance measuring device including: a light source including one or more light source elements; and a light diffusion device through which light emitted from the light source passes, wherein the light diffusion device is divided into one or more regions, each of the light source elements of the light source is disposed with an independent region, and the intensity of light transferred from the light source elements is adjustable. The method may include: identifying a field of view (FOV) of a red, green, and blue (RGB) camera; and adjusting, based on a predetermined reference, the field of view of the distance measuring device such that the field of view of the distance measuring device corresponds to the field of view of the RGB camera.

Provided is a light source system, including: a light-emitting module configured to emit first light along a first light path and second light along a second light path; a wavelength conversion device configured to receive the first light and emit excited light with a color different from the first light; and a compensation device configured to guide the second light and adjust its luminous intensity distribution so that the luminous intensity distribution of the second light exiting from the compensation device is substantially identical to the excited light. The compensation device includes a compensation element configured to adjust luminous intensity distribution of a light beam so that an emergent light beam of the compensation element has reduced overall luminous intensity compared with an incident light beam. The second light exiting from the compensation device is combined with the excited light to form third light.

A polarizing plate and a liquid crystal display including the same are provided. A polarizing plate includes a polarizing film and a contrast-improving optical film sequentially stacked in the stated order. The contrast-improving optical film includes a contrast-improving layer including a first resin layer and a second resin layer facing the first resin layer. The second resin layer includes a patterned portion having optical patterns and a flat section between the optical patterns. The second resin layer satisfies Equation 1, and the polarizing plate has a contrast ratio gain of about 1.00 or more, as represented by Equation 2.

An optical element is configured to be worn in front of an eye of a wearer. The optical element has two main surfaces and includes at least one holographic diffusive element having diffusive properties resulting from spatial variations of refractive index of said holographic diffusive element. The spatial variation of refractive index is greater than 0.001 at at least one given wavelength, on a distance less than 30 μm. An optical equipment includes the optical element and methods for recording a holographic medium onto an optical lens.