Abstract: A complementary thin film transistor (TFT) includes a substrate and a first TFT and a second TFT disposed on the substrate, wherein a first conductive semiconductor layer of the first TFT and a second gate electrode layer of the second TFT are disposed in the same layer and include the same material.

Abstract: A mobile terminal includes an optical modulation projector. The mobile terminal also includes a control system, a projection control unit, and an optical modulation system. The control system outputs a projection control signal and image data. The projection control unit receives the image data from the control system, and generates and outputs a drive control signal depending on the image data received. The optical modulation system generates and modulates light and generates an image in response to the drive control signal and then scans the image for projecting onto a screen.

Abstract: Disclosed herein is a raster scanning-type display device using a diffractive optical modulator. The raster scanning-type display device includes an optical illumination unit, a diffractive optical modulator, and a projection unit. The optical illumination unit radiates light, which is emitted from a light source, in a spot beam form. The diffractive optical modulator causes an element to modulate the spot beam incident from the optical illumination unit, and generate diffracted light whose intensity is adjusted and which has a plurality of diffraction orders. The projection unit generates an image by projecting the diffracted light incident from the diffractive optical modulator onto a screen in a scanning spot beam form and performing raster scanning in which horizontal scanning and vertical scanning are alternated.

Abstract: Disclosed herein is a display device using an optical modulator equipped with a lens system having an improved numerical aperture. The display device includes numerical aperture reducer for reducing a numeral aperture by causing +1st order diffracted light and corresponding ?1st order diffracted light of a diffracted light, which have passed through a relay lens system, to approach each other.

Abstract: Disclosed herein is a pixel unit scanning-based display apparatus, in which diffracted beams having a plurality of diffraction orders, formed from a single beam through diffraction, are used to display images in such a manner that each pixel can form a plurality of dots on a screen by vibrating the diffracted light generated in pixels.

Abstract: Disclosed herein is an order separation- and multibeam formation-based printing apparatus using an optical modulator, in which diffracted beams having two or more diffraction numbers, formed by reflecting and diffracting multibeam light, are assigned to respective photosensitive surface sections of a photosensitive drum according to wavelength and diffraction order to form latent images on the surface of the photosensitive drum at an improved resolution.

Abstract: A display device is disclosed. The display device includes a condenser unit, an illumination lens system, a plurality of diffractive light modulators, a mirror for separating illumination light from diffracted light, a polarized beam separator, a filter unit and a projection unit. The condenser unit converges polarized light, and outputs the converged polarized light. The illumination lens system converts the polarized light into linear parallel light. The diffractive light modulators produce diffracted light beams. The mirror passes the polarized light therethrough using slits, and reflects the diffracted light beams toward the filter system. The polarized beam separator separates the polarized light on a wavelength basis and then allows the separated beams to be incident on the diffractive light modulators, and converges the diffracted light beams and then outputs the converged light to the mirror.

Abstract: A display device is disclosed herein. The display device includes a condenser unit, an illumination lens system, an optical modulation system, a filter system and a projection system. The condenser unit converges polarized light output from a plurality of light sources, and outputs the converged polarized light. The illumination lens system converts the polarized light into linear parallel light. The optical modulation system produces diffracted light beams having a plurality of diffraction orders by optically modulating the polarized light. The filter system passes some of the diffracted light beams having desired orders therethrough. The projection system focuses the diffracted light beams passed through the filter system, and projects the focused diffracted light beams onto a screen.

Abstract: Disclosed herein is a printing apparatus using an order-separation type optical modulator. The printing apparatus includes an illumination lens system, a diffraction type optical modulator, a filter system, and a projection system. The illumination lens system converts light, which is output from a light source, into linear light and outputs linear, parallel light, the diffraction type optical modulator performs desired modulation on the linear, parallel light emitted from the illumination lens system and forms diffracted light having a plurality of diffraction orders.

Abstract: A display device is disclosed. The display device includes a condenser unit, an illumination lens system, a plurality of diffractive light modulators, a mirror for separating illumination light from diffracted light, a polarized beam separator, a filter unit and a projection unit. The condenser unit converges polarized light, and outputs the converged polarized light. The illumination lens system converts the polarized light into linear parallel light. The diffractive light modulators produce diffracted light beams having a plurality of diffraction orders. The mirror passes the polarized light therethrough using slits, and reflects the diffracted light beams toward a filter system. The polarized beam separator separates the polarized light on a wavelength basis and then allows the separated beams to be incident on corresponding diffractive light modulators, and converges the diffracted light beams and then outputs the converged light to the mirror.

Abstract: A display device using a light modulator and having an improved numerical aperture (NA) of an after-edge lens system is disclosed. The display device includes an illumination lens, a diffractive light modulator, an NA improvement unit, a filter system and a projection system. The illumination lens converts light into linear parallel light, and outputs the linear parallel light. The diffractive light modulator produces diffracted light beams having a plurality of diffraction orders by modulating the linear parallel light incident from the illumination lens according to an external control signal. The NA improvement unit causes + and ? diffracted light beams of the diffracted light beams to come close to each other. The filter system passes only some of the diffracted light beams having predetermined orders, therethrough. The projection system focuses the diffracted light beams onto an object and allows the focused diffracted light to scan the object.

Abstract: A color display apparatus having a virtual single light origin is disclosed. The color display apparatus includes an illumination lens system, a combining system, a Fourier filter and a projection system. The illumination lens system converts a plurality of light beams, which are radiated from a plurality of light sources, into linear, parallel light beams. The combining system produces a plurality of diffracted light beams having a plurality of diffraction orders by modulating each of the parallel light beams incident from the illumination lens, and outputs the plurality of diffracted light beams so that the diffracted light beams have a same virtual light origin and are adjacently located. The Fourier filter passes only some of the diffracted light beams, which have desired diffraction orders, therethrough. The projection system focuses the diffracted light beams, which are passed through the Fourier filter, on an object, and then allows the focused diffracted light beams to scan the object.

Abstract: A color display device is disclosed. The color display device includes an illumination lens system, a diffractive light modulation system, a combining system, a Fourier filter system, and a projection system. The illumination lens system converts a plurality of light beams into linear parallel light beams. The diffractive light modulation system produces a plurality of diffracted light beams having a plurality of diffraction orders by modulating each of the plurality of parallel light beams that are almost perpendicularly incident from the illumination lens system, The combining system focuses the plurality of diffracted light beams having the plurality of diffraction orders. The Fourier filter system selects diffracted light beams having desired diffraction orders using a dichroic filter. The projection system focuses the diffracted light beams on an object, and allowing the focused diffracted light beams to scan the object.