A keyboard includes a base plate, a plurality of keys and a backlight module. The base plate has a short axis direction and a long axis direction. The keys are disposed on the base plate. The backlight module is disposed on the base plate and includes a shielding sheet, a light guide plate and a reflecting sheet. The light guide plate is disposed on a lower surface of the shielding sheet. The light guide plate includes a plurality of light guide structures corresponding to the keys respectively. Each of the light guide structures includes a ring portion and at least one bend line portion. The bend line portion connects to the ring portion, and the ring portion is formed by a plurality of bending portions. The reflecting sheet is disposed below the light guide plate.

A keyboard includes a base plate, a plurality of keys and a backlight module. The base plate has a short axis direction and a long axis direction. The keys are disposed on the base plate along the long axis direction, and the keys are arranged to form a plurality of rows. The backlight module is disposed on the base plate and includes a shielding sheet, a light guide plate and a reflecting sheet. The light guide plate is disposed on a lower surface of the shielding sheet. The light guide plate includes a plurality of long openings, and each of the long openings has at least one long side. The long side is parallel to the long axis direction, and each of the long openings has a central axis. The central axis is located between two adjacent rows on which the keys are disposed.

A light-transmitting assembly of a display device, a signal indicator, and the display device are provided in the embodiments of the present disclosure. The light-transmitting assembly of the display device includes: a light-transmitting adjustment member including a plurality of first patterns, a light transmittance of each first pattern is less than a light transmittance of a region of the light-transmitting adjustment member other than the first pattern, and each light-shielding area ratio of the first patterns is a ratio of a sum of areas of all the first patterns in any one region of the light-transmitting adjustment member to an area of the any one region.

A keyboard includes a mechanical structure and a key attached to the mechanical structure. A light emitting diode configured to emit light into a light guide panel. A reflector may be attached to the light guide panel and be configured to reflect light from the light guide panel through an opening in the mechanical structure to illuminate a periphery of the key.

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).

A light emitting device is provided to a vehicle. The light emitting device includes a display portion and a light emitting portion. The display portion includes a first light source and a light guide plate that guides light from the first light source to form a first image in a space. The light emitting portion includes a second light source and a light emitting region that overlaps with the first image in a vehicle front-rear direction at a position close to the first image and emits light from the second light source to the outside of the vehicle.

A steering wheel assembly having a steering wheel base plate, a safety airbag and a cover and a housing, wherein the cover and the housing define a space for accommodating an airbag and a light-emitting mark. The light-emitting mark includes an electronic control element, a mark portion, and a flexible circuit board. The electronic control element is configured to be based on a rigid printed circuit board. The flexible circuit board is configured to have a first end connected to the electronic control element and a second end connected to the mark portion so that the electronic control element controls light emission of the mark portion by means of the flexible circuit board. The electronic control element is arranged in a first position in the steering wheel assembly. The mark portion is arranged in a second position in the steering wheel assembly. The second position is positioned at the cover.

A backlit partially reflective mirror may be used to form a logo or other structure in an electronic device. The electronic device may have a housing. The housing may have a wall with one or more openings configured to receive one or more corresponding logo-shaped portions of the partially reflective mirror. The partially reflective mirror may be illuminated using backlight illumination from a backlight that is overlapped by the partially reflective mirror. The partially reflective mirror may be formed from one or more protruding structures on a common substrate. One or more thin-film layers may be configured to provide the partially reflective mirror with desired visible light reflection spectrum, a desired visible light transmission spectrum, and a desired visible light absorption spectrum. The reflectivity of the mirror may be configure so that the mirror serves as a one-way mirror for the logo or other structure.

A gaming machine according to the first invention comprises a housing, an operation button for a gaming machine provided in a front position opposite a game player in the housing and a display device disposed at a position adjacent to the operation button for the gaming machine in the housing. The push button 20 includes a base 21, a key top 22, an LED 30, and a light guide plate 31. The key top 22 is supported by the base 21 in a state of being operable by a player, has a front surface 22a that is visible to the player and a back surface 22b on the opposite side thereof, and transmits light. The LED 30 is provided on the back surface 22b side of the key top 22 and emits light in a desired direction. The light guide plate 31 has a lower surface 31a that is provided on the back surface 22b side of the key top 22 and on which the light emitted from the LED 30 is incident, and an upper surface 31b that emits light toward the key top 22 side.

A display apparatus includes a light source, a display unit including a light-transmissive portion having a predetermined design shape, and a light guide that guides light emitted from the light source to the light-transmissive portion. The display unit enables the design shape to be visually recognized when the light emitted from the light source is applied. The light guide includes a radiating portion that applies the light emitted from the light source toward the light-transmissive portion, a first peripheral wall, a second peripheral wall, an upper wall, and an outer peripheral wall. Each of the radiating portion, the first peripheral wall, the second peripheral wall, the upper wall, and the outer peripheral wall is integral to the light guide. Each or all of the first peripheral wall, the second peripheral wall, the upper wall, and the outer peripheral wall are supporting portions that support the radiating portion.