The present disclosure is applicable to a display apparatus-related technical field, and relates to, for example, a rotating display apparatus using a light-emitting diode (LED) which is a semiconductor light-emitting device. A rotating display apparatus using a light-emitting device, of the present disclosure, comprises: a stationary part including a motor; a rotary part located on the stationary part and rotated by the motor; and a light source module which is coupled to the rotary part, and which includes at least one panel that is radially arranged or at least one panel that is arranged along a cylindrical surface, and a light-emitting device array having individual pixels arranged on each panel in the longitudinal direction, wherein some individual pixels of the light-emitting device array arranged on one panel can have an offset in the direction perpendicular to the longitudinal direction.

A virtual image display device according to an embodiment is a virtual image display device that displays information to a passenger on a vehicle. The virtual image display device includes a first virtual image display unit that displays a virtual image as information. The first virtual image display unit has a virtual image display portion that displays a virtual image and a rotating unit that rotates the virtual image display portion in a range in which the virtual image is visually recognizable by the passenger.

The present disclosure is applicable to a display apparatus-related technical field, and relates to, for example, a rotating display apparatus using a light-emitting diode (LED) which is a semiconductor light-emitting device. According to the present disclosure, a rotating display apparatus using a light-emitting device, comprises: a fixed part including a motor; a rotary part located on the fixed part and rotated by the motor; and a light source module which is coupled to the rotary part, and which includes at least one panel that is radially arranged or at least one panel that is arranged along the cylindrical surface, and a first light-emitting device array having individual pixels that are arranged on each panel in the longitudinal direction, wherein sub-pixels forming the individual pixel of the first light-emitting device array can be arranged along a direction orthogonal to the longitudinal direction.

The present disclosure is applicable to a display apparatus-related technical field, and relates to, for example, a rotating display apparatus using a light-emitting diode (LED) which is a semiconductor light-emitting device. According to the present disclosure, a rotating display apparatus using a light-emitting device, comprises: a fixed part including a motor; a rotary part located on the fixed part and rotated by the motor; and a light source module which is coupled to the rotary part, and which includes at least one panel that is radially arranged or at least one panel that is arranged along the cylindrical surface, and a first light-emitting device array having individual pixels that are arranged on each panel in the longitudinal direction, wherein sub-pixels forming the individual pixel of the first light-emitting device array can be arranged along a direction orthogonal to the longitudinal direction.

Provided is a laminated film comprising a base material, an anchor layer, a metal deposition layer, and a bonding layer, the metal deposition layer comprising indium, wherein an OD value is 1.2 or less, and wherein an a* value and a b* value of a transmitted light in a L*a*b* color space satisfy the following inequality (1):

OD value×(a*.sup.2+b*.sup.2).sup.1/2≤6.7  (1)

Provided is a laminated film comprising a base material, an anchor layer, a metal deposition layer, and a bonding layer, the metal deposition layer comprising indium, wherein an OD value is 1.2 or less, and wherein an a* value and a b* value of a transmitted light in a L*a*b* color space satisfy the following inequality (1):

OD value×(a*.sup.2+b*.sup.2).sup.1/2≤6.7  (1)

A light guide plate according to one or more embodiments may include a plurality of optical path changing units each converging incident light to a definite point. A stereoscopic image is formed in a space by a collection of a plurality of definite points. The stereoscopic image includes a plurality of faces not parallel to each other, the face is made up of a plurality of dots dispersedly arranged on the face, and a density of the plurality of dots on each of the faces is a value corresponding to a position of the face.

Disclosed is an image stitching-based aerial image formation apparatus, including sequentially along an optical path direction: an image source comprising a plurality of display units arranged in an array; a rear lens group comprising a plurality of optical lens units arranged in an array; and a front lens group, wherein light rays passing through the rear lens group are converged via the front lens group to render a real image in midair. The disclosure offers the following benefits: by splitting the image source into a plurality of display units arranged in an array and constituting the rear lens group by a plurality of optical lens units arranged in an array, the image is split into smaller patches, such that the longitudinal distance needed for chromatic aberration adjustment also decreases, which shrinks the longitudinal dimension of the whole apparatus so as to be better adapted for installation in a narrow space.

According to the present embodiments, it is possible to provide a rotary LED display device which reduces the size of the device and can be installed in various location so as to reduce the restrictions on installation space and location. The embodiments may provide a rotary LED display device capable of allowing a user to freely change the display contents immediately and satisfying the durability suitable for long-term operation.

A manufacturing method of a 3D stereoeffect sign includes designing a figure or a character having specific information, giving a volume to the figure or the character by providing one or more vanishing points, setting a projection height of the figure or the character having the volume which is projected to the eyes of a viewer which is located at a reference distance, setting a printed length of the figure or the character having the volume to correspond to the projection height, setting a printed width of the figure or the character having the volume, and adjusting the length and the width of the figure or the character having the volume proportionally to correspond to the printed length and the printed width.