Abstract: Disclosed is a composition for preparing an organic insulator, the composition comprising (i) at least one organic-inorganic hybrid material; (ii) at least one organometallic compound and/or organic polymer; and (iii) at least one solvent for dissolving the above two components, so that an organic insulator using the same has a low threshold voltage and driving voltage, and high charge carrier mobility and Ion/Ioff ratio, thereby enhancing insulator characteristics. Further, the preparation of organic insulating film can be carried out by wet process, so that simplification of the process and cut of cost are achieved.

Abstract: A composition for preparing an organic insulator, the composition comprising (i) at least one organic-inorganic hybrid material; (ii) at least one organometallic compound and/or organic polymer; and (iii) at least one solvent for dissolving the above two components, so that an organic insulator using the same has a low threshold voltage and driving voltage, and high charge carrier mobility and Ion/Ioff ratio, thereby enhancing insulator characteristics. Further, the preparation of organic insulating film can be carried out by wet process, so that simplification of the process and cut of cost are achieved.

Abstract: A polarization conversion system comprises a glass substrate; reflection type polarization plates, formed between top and bottom surfaces of the glass substrate and inclined at a predetermined angle, separating unpolarized incident light into two polarization directions where two directions are at a right angle to each other; polarization conversion plates coupled to the reflection type polarization plates, converting a polarization direction of polarized light by the reflection type polarization plates; and reflection plates positioned in parallel with the reflection type polarization plates, reflecting incident light from the reflection type polarization plates.

Abstract: The present invention relates to a projection device, and more particularly, to a projection device in which an image of a resolution higher than a resolution of a display panel included therein can be displayed. According to the present invention, the projection device is a projection device that projects an image signal onto a screen, the projecting device including image forming means that forms an image by using an inputted image signal, and image shift means that transmits the image intact or shifts the image, and projects the intact or shifted image onto the screen. Therefore, the projection device according to the present invention can provide an image of a high resolution by using a digital display panel that supports a low resolution.

Abstract: Disclosed herein is an organic thin film transistor comprising a substrate, a gate electrode, an organic insulating layer, an organic active layer and source/drain electrodes, wherein the interface between the organic insulating layer and the organic active layer is of relief structure. According to the present invention, an organic thin film transistor of enhanced electric properties can be obtained regardless of the organic insulating materials used.