A semiconductor device includes a first substrate, a semiconductor device includes a first substrate, a color filter layer over the first substrate in an effective pixel region, a second substrate over the color filter layer, a joint member joining the first and second substrates, and a pattern layer over the first substrate outside the effective pixel region. The color filter layer has a color filter material and the pattern layer has the color filter material. In a planar view with respect to a surface of the first substrate on which the joint member is disposed, the pattern layer is disposed between two portions of the joint member, the two portions being separate from and adjacent to each other. In the planar view, the joint member is not disposed between the pattern layer and an end of the first substrate closest to the pattern layer among ends of the first substrate.

A vehicle light guide and a vehicle headlight which can improve long-distance visibility are provided. The vehicle light guide has a shape having an incident surface on which light from a light source is incident, a first reflective surface which internally reflects the light incident from the incident surface toward a front in a front-back direction in a vehicle-mounted state, a second reflective surface having a shape with an inclined portion inclined to a lower side in the front-back direction in the vehicle-mounted state across an edge side on the front in the front-back direction and internally reflecting the light reflected by the first reflective surface toward the front in the front-back direction, and an emission surface that emits the light internally reflected by the first reflective surface and the second reflective surface and emits a light distribution pattern to the front of the vehicle.

The present invention relates to a prism layer (10) superimposed on the front surface of a display (20), in which: a plurality of prism parts (11) are vertically arranged; the prism parts (11) each have an upper slope surface (12) and a lower slope surface (13), and have a corner part (14) which has a forward protruding triangular shape in a cross-sectional view; the angle θ1 of the upper slope surface (12) with respect to a rear surface (15) is set to 60° to 120°, and the angle θ2 of the lower slope surface (13) with respect to the rear surface (15) is set to 5° to 45°; and the pitch Pp of a groove part (16) between the prism parts (11) is made smaller than the vertical pitch Pd of a pixel (21) of the display (20).

A flexible lighting panel comprising a light-emitting unit with electrical contact pads on a flexible substrate; a flat flexible printed circuit board with a bendable extension tab, wherein the circuit board is located on the opposite side of the light-emitting unit from the substrate; the area of the circuit board, not including the extension tab, is the same or greater than and overlaps the emissive area of the light-emitting unit; and the circuit board has at least two flat electrical connectors in electrical contact with the contact pads of the light-emitting unit; the flat electrical connectors extending along the extension tab of the circuit board for connection to a power source. The light emitting unit can be an OLED. The extension tab can be bent so that the flat electrical connections become accessible in different orientations. The panel can be ultrathin.

The present disclosure discloses a lighting arrangement with optical composite that provides, when in operation, more uniform angular light distribution emissions into an environment. Lighting arrangements employing the novel optical composite in conjunction with LED light sources provide direct and indirect illumination with more uniform angular light distribution emissions into application environments. An optically coupled opaque layer suppresses internal reflections of ambient light to improve visual appearance of the optical composite by reducing peak brightness and brightness non-uniformity. In specific embodiments, low visibility matte appearances are achieved that are aesthetically desirable in the “off” (unlit) state. The present disclosure provides a solution to problems of non-uniform angular distribution of light causing visual discomfort and spatial discontinuity in output. Energy savings are achieved with high optical efficiency utilizing compact, durable, robust, and aesthetically appealing optical composites and lighting arrangements capable of providing an assortment of configurable angular light distributions.

Disclosed are lighting arrangements that provide, when in operation, more uniform angular light distribution emissions into an environment. The lighting arrangements use LED light sources, a light scattering optical element and partial reflectance from a light transmissive sheet or reflective layer to produce direct and indirect illumination with improved angular light distribution and uniformity onto targeted illumination surfaces such as ceilings, walls, and floors. The present disclosure provides a solution to problems of non-uniform angular distribution of light causing visual discomfort and spatial discontinuity in output. Energy savings are achieved with high optical efficiency utilizing compact, durable, robust, and aesthetically appealing optical composites and lighting arrangements capable of providing an assortment of configurable angular light distributions.

A device comprising an organic light-emitting diode comprising an organic layer sequence, a radiation exit area and an encapsulation, wherein the organic layer sequence comprises at least one radiation-emitting region which generates electromagnetic radiation in the spectral range from infrared radiation to UV radiation during operation, and wherein the encapsulation forms a seal of the organic layer sequence against environmental influences, at least one touch-sensitive operating element, wherein the at least one touch-sensitive operating element comprises at least one touch sensor, wherein the device is flexible.

The invention relates to a lighting device, for a motor vehicle, including a plurality of light sources, which have a plurality of primary lenses dedicated to each of the respective light sources for focusing the light emitted by the respective light sources. The lighting device also has a secondary optics element which has a plurality of light entry surfaces dedicated to each respective light source and one light exit surface. A grid is located downstream of the light exit surface on the secondary optics element in the exit direction of the light, for segmenting the light exiting the light exit surface.

An organic compound is represented by formula [1]. In formula [1], L and L′ are bidentate ligands different from each other, a partial structure IrL.sub.m is a partial structure represented by formula [2], and a partial structure IrL′.sub.n is a partial structure represented by formula [3-1] or formula [3-2].

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The invention relates to an area light decorative element (1) comprising an optically activatable symbol body (2) at least partially formed of a transparent optically activatable first material (9) and configured to emit visible light in response to the optically activatable symbol body (2) being excited with electromagnetic radiation in a predetermined first frequency range, a light element (3) consisting of a transparent material, wherein the optically activatable symbol body (2) is arranged in the light element (3), a touch-sensitive surface (4) disposed in a first area (5) of a surface of the light element (3) above the optically activatable symbol body (2) for detecting a touch of a user in the first area (5), and an illumination unit (6) which is arranged to emit visible light in a predetermined visible frequency range (22) into the light element (3) and, together with the visible light, also to emit electromagnetic radiation in the predetermined first frequency range into the light element (3).