Abstract: A display apparatus and a method of adjusting image quality of a display apparatus which displays an image on the basis of an image signal are provided. The display apparatus includes a signal processor that processes an image signal; a display unit that displays an image based on the image signal processed by the signal processor; a storage unit that stores a measured value representing image quality of the display unit; and an image quality adjustment unit that carries out image quality adjustment of the display unit based on the measured value and a preset target value corresponding to a desired image quality of the display unit.

Abstract: An optical engine is provided that includes a base frame, a video device assembly for generating a video signal, and a driving substrate detachably coupled to the video device assembly for driving the video device assembly. The driving substrate is coupled to the base frame such that the video device assembly is disposed therebetween. A first coupling unit couples the driving substrate and the video device assembly to the base frame such that a position of the video device assembly with respect to the base frame is adjustable. A second coupling unit couples the video device assembly to the base frame to secure the adjusted position of the video device assembly to the base frame. The optical engine, and an image projecting apparatus having the same, allow the driving substrate to be replaced without adjusting a position of the video device assembly.

Abstract: The present invention relates to a color wheel unit comprising a color wheel having a rotatable filter supporter and a plurality of color filters radially attached to the filter supporter; a color wheel supporter for rotatably supporting the color wheel; a projection provided in at least one of the color filters; and a projection holder for engagement with the projection and provided in at least one of the color filter adjacent to the color filter having the projection and the filter supporter for preventing the color filter from a radial outward breakaway. Thus, the present invention provides a color wheel unit and an optical engine with the same, in which a color filter is stably mounted.

Abstract: An optical engine is provided that includes a base frame, a video device assembly for generating a video signal, and a driving substrate detachably coupled to the video device assembly for driving the video device assembly. The driving substrate is coupled to the base frame such that the video device assembly is disposed therebetween. A first coupling unit couples the driving substrate and the video device assembly to the base frame such that a position of the video device assembly with respect to the base frame is adjustable. A second coupling unit couples the video device assembly to the base frame to secure the adjusted position of the video device assembly to the base frame. The optical engine, and an image projecting apparatus having the same, allow the driving substrate to be replaced without adjusting a position of the video device assembly.

Abstract: The present invention relates to a color wheel unit comprising a color wheel having a rotatable filter supporter and a plurality of color filters radially attached to the filter supporter; a color wheel supporter for rotatably supporting the color wheel; a projection provided in at least one of the color filters; and a projection holder for engagement with the projection and provided in at least one of the color filter adjacent to the color filter having the projection and the filter supporter for preventing the color filter from a radial outward breakaway. Thus, the present invention provides a color wheel unit and an optical engine with the same, in which a color filter is stably mounted.