A display device includes: a first light emitting diode configured to illuminate a first display; a first power control circuit configured to control power supply to the first light emitting diode; a first lighting control circuit configured to execute lighting control of the first light emitting diode; a first monitor circuit configured to monitor a first lighting state of the first light emitting diode; and first control circuitry including a memory and a processor, configured to execute determining, based on an output of the first monitor circuit, whether the first lighting state is abnormal, and controlling permission or non-permission of power supply to a second light-emitting diode of a display device that is used as the second display device, based on a determination result of the determining.

Optics (20) for an illumination device (1), as well as an illumination device (1) comprising such optics. The optics comprise at least one lens (30) with a light entry surface (31) and a light exit surface (32). A stepped lens structure (321), such as a Fresnel structure, is formed on the light exit surface. A recurring surface structure, such as periodically arranged prominences (311) and deepenings (321), are formed on the light entry surface (31).

An illumination system for a steering wheel assembly of a vehicle including a housing coupled to a rim of the steering wheel assembly. At least one visible light source is disposed adjacent the housing and emitting visible light through an opening in the housing. A lens is provided covering the opening in the housing such that an inner surface of the lens is disposed adjacent the opening in the housing. A cover material covers the outer surface of the lens and at least a portion of the rim, and includes translucent and/or transparent portions such that the lens is not visible through the cover material. The visible light from the visible light source passes through the transparent and/or translucent portions of the cover material.

An illumination system for a steering wheel assembly of a vehicle including a housing coupled to a rim of the steering wheel assembly. At least one visible light source is disposed adjacent the housing and emitting visible light through an opening in the housing. A lens is provided covering the opening in the housing such that an inner surface of the lens is disposed adjacent the opening in the housing. A cover material covers the outer surface of the lens and at least a portion of the rim, and includes translucent and/or transparent portions such that the lens is not visible through the cover material. The visible light from the visible light source passes through the transparent and/or translucent portions of the cover material.

A method for manufacturing a vehicle steering wheel, the steering wheel comprising: —a rim, —an outer sheath formed by at least one strip attached around at least one part of the rim, —at least one device passing through the outer sheath, the method comprising at least the following steps: —positioning the strip around the rim, —attaching the strip to the rim in order to form the outer sheath, —forming an opening in the outer sheath facing an internal part of the device, —folding portions of the outer sheath towards the inside of the rim.

A functional vehicle component and related methods include a functional leather assembly fixed over a vehicle component. The functional leather assembly includes a leather sheet, a flexible electronic circuit arranged on a first surface of the leather sheet that faces away from the vehicle component to thereby define an outermost surface of the leather sheet, and including a receiver coil inductively coupled to a transmitter coil on the vehicle component for wirelessly transferring power to the functional leather assembly. Power from a vehicle power source can be wirelessly transferred between the transmitter coil and the receiver coil to power electronic elements of the electronic circuit.

A functional vehicle component and related methods include a functional leather assembly fixed over a vehicle component. The functional leather assembly includes a leather sheet, a flexible electronic circuit arranged on a first surface of the leather sheet that faces away from the vehicle component to thereby define an outermost surface of the leather sheet, and including a receiver coil inductively coupled to a transmitter coil on the vehicle component for wirelessly transferring power to the functional leather assembly. Power from a vehicle power source can be wirelessly transferred between the transmitter coil and the receiver coil to power electronic elements of the electronic circuit.

A light pipe is provided that includes a light transmissive medium having an input at one end and configured to be operatively coupled to a light source, wherein the light transmissive medium defines a first portion connected to a second portion via a first bend portion of about 90°, and a series of prisms formed in the light transmissive medium, each prism having a V-shaped groove with an incline angle of about 45°, wherein each prism has a depth and a length that increases from the first portion to the second portion, and wherein a separation gap between adjacent prisms decreases from the first portion to the second portion. The light pipe may have third and fourth portions and form a U-shape.

A light pipe is provided that includes a light transmissive medium having an input at one end and configured to be operatively coupled to a light source, wherein the light transmissive medium defines a first portion connected to a second portion via a first bend portion of about 90°, and a series of prisms formed in the light transmissive medium, each prism having a V-shaped groove with an incline angle of about 45°, wherein each prism has a depth and a length that increases from the first portion to the second portion, and wherein a separation gap between adjacent prisms decreases from the first portion to the second portion. The light pipe may have third and fourth portions and form a U-shape.

A vehicle interior component configured to present a user interface for a vehicle occupant with at least one vehicle system and/or network is disclosed. The component may comprise a housing, cover structure and user interface system configured to present the user interface at a cover surface. The user interface may comprise a light display configured to transmit light from a light source and/or an input device configured to interface with a sensor arrangement. The user interface may comprise output from the light display and/or input by interaction with the input device at the cover surface through the sensor arrangement. The component may comprise an interface module comprising the light display and the input device. The light display may comprise a light guide and/or display panel. The light guide may comprise a projection and/or icon configured to transmit light through an aperture and/or recess of the cover structure.