| LMS CO., LTD Patent applications |
| Patent application number | Title | Published |
|---|
| 20110222156 | Diffractive Element for Optical Pickup and Optical Module Including the Same - Provided are a diffractive element for optical pickup and an optical module including the diffractive element. The diffractive element includes a plurality of diffraction patterns, and the diffraction patterns include a main diffraction pattern for creating diffraction characteristics, and an alignment mark pattern for recognizing an alignment position, the alignment mark pattern having a different pitch from the main diffraction pattern. Also, the pitch of the alignment mark pattern is formed smaller than that of the main diffraction pattern. Further, a ratio of the pitch of the alignment mark pattern to that of the main diffraction pattern is ⅛ or greater to ½ or less. | 09-15-2011 |
| 20110085108 | OPTICAL DEVICE, AND BACKLIGHT UNIT AND LIQUID CRYSTAL DISPLAY INCLUDING THE SAME - An optical device which maintains luminance characteristics to the greatest extent, improves light-collecting effects, and realizes a wide viewing angle, and a backlight unit and an LCD including the same. The optical device includes a light-transmitting base film. A plurality of convex portions is formed on at least one surface of the base film, and microscopic optical patterns have peaks and valleys, which abut each other, on part of the convex portions. Alternatively, a plurality of third fine optical patterns is formed on at least one surface of the base film. A portion of each third fine optical patterns abutting the base film forms a figure having long and short axes. Each of the third fine optical patterns has a peak with a height that decreases from the center to both ends thereof along the long axis. | 04-14-2011 |
| 20110044058 | Optical Film and Lighting Device Comprising the Same - An optical film is formed with a plurality of optical patterns having peak and valley portions and a lighting device may include such an optical film. Pitches of the optical patterns, heights of the peak portions and depths of the valley portions are irregular, and plan and side structures of the optical patterns have a non-linear non-symmetrical arrangement structure in which the peak and valley portions are irregularly bent. According to an optical film and a lighting device including such an optical film, a moiré phenomenon can be prevented in advance, abrasion resistance can be improved, optical defects such as scratches cannot be observed with the naked eye, a wet-out phenomenon can be prevented, and a viewing angle can be broadened. | 02-24-2011 |
| 20110002144 | INTEGRATED OPTICAL SHEET AND OPTICAL DEVICE HAVING THE SAME - Provided are an integrated optical sheet and an optical device having the same, and more particularly, an integrated optical sheet and an optical device having the same, in which a diffuser film and a prism film are integrated in a thin structure. The optical sheet includes a light collector including a plurality of prism elements extending in a first direction, and an anisotropic diffuser including a plurality of optical elements extending from a surface of the light collector opposite to the surface having the prism elements in a second direction different from the first direction. One part including downward prism elements and scattering elements is formed at one surface and the other part including diffusion elements is formed at the other surface to integrate a conventional diffusion film to a horizontal prism film, providing a thin optical sheet. | 01-06-2011 |
| 20100328579 | OPTICAL ELEMENT, AND BACKLIGHT UNIT AND LIQUID CRYSTAL DISPLAY INCLUDING THE SAME - An optical element capable of improving a light diffusion effect while minimizing a damage of other members in the LCD due to an impact and so on, and a backlight unit and an LCD including the same. The optical element includes an optically-transparent base member; and a light-diffusing resin layer formed on one side of the base member. The light-diffusing resin layer has a plurality of concave recesses formed in a surface thereof to diffuse light. The optical element further includes an optical micro-structural layer formed on the opposite side of the base member. The second light-diffusing resin layer has a plurality of concave recesses formed in a surface thereof to diffuse light. | 12-30-2010 |
| 20100039586 | OPTICAL ELEMENT AND BACKLIGHT UNIT AND LIQUID CRYSTAL DISPLAY HAVING THE SAME - An optical element capable of increasing an angular field while improving luminance by condensing light, and a backlight unit and a liquid crystal display including the same. The optical element includes a light-transmitting base film; a plurality of diffusing cavities or convex diffusing structures formed in one surface of the base film to diffuse light entering the base film; and a light-condensing pattern formed in the surface of the base film where the diffusing cavities or convex diffusing structures are formed so as to condense incident light. | 02-18-2010 |
