Patent application number | Description | Published |
20080239928 | OPTICAL PICKUP - An objective lens corresponding to a BD beam light, and an objective lens corresponding to a DVD/CD beam light are arranged parallel to an optical disc. One rising mirror is arranged in a tilted manner on a side opposite to the optical disc of the objective lenses. A first film for reflecting the BD beam light emitted from a laser diode and making the beam light enter the objective lens and transmitting the DVD/CD beam light emitted from a laser diode is arranged on one of the parallel surfaces of a transparent substrate of the rising mirror. A second film for reflecting the DVD/CD beam light transmitted through the first film and the transparent substrate and making the beam light enter the objective lens is arranged on the other surface. An incident optical axis to each objective lens of the BD beam light and the DVD/CD beam light is branched with the rising mirror. | 10-02-2008 |
20100085862 | OPTICAL PICKUP DEVICE - In the invention, a movable lens varying the rate of convergence or divergence of light reaching an objective lens by moving in an optical axis direction has its position adjusted to correspond to ambient temperature. The objective lens is arranged to be tilted with respect to an optical axis of light reaching the objective lens from the movable lens. First coma aberration of which the amount produced varies according to movement of the movable lens, and second coma aberration of which the amount produced varies due to variation in the warping state of an optical disc that is caused along with variation in ambient temperature both occur in the radius direction of the optical disc, and the objective lens has its tilting direction adjusted such that the first coma aberration and the second coma aberration have their increasing and decreasing directions of the amount of coma aberration produced with respect to variation in ambient temperature reversed. | 04-08-2010 |
20100226233 | OPTICAL PICKUP DEVICE - An optical pickup device includes a first optical system and a second optical system. The first optical system and the second optical system each include a mirror member that reflects light from a light source to change a direction of propagation of the light to a direction substantially perpendicular to the information storage surface of an optical disc. The first optical system and the second optical system are arranged such that a direction in which light from a first light source enters a first mirror member is substantially perpendicular to a direction in which light from a second light source enters a second mirror member. | 09-09-2010 |
20140218661 | DISPLAY DEVICE - A display device includes a display component, a light source, a rear side support member, and a reflective sheet. The light source is disposed on a rear side of the display device relative to the display component. The reflective sheet includes a bottom face part, a first side face part and a second side face part. The first and second side face parts have first and second protrusions at adjacent end edge portions of the first and second side face parts, respectively. The first protrusion overlaps with the end edge portion of the second side face part from the rear side while the reflective sheet is attached to the rear side support member. The second protrusion overlaps with the end edge portion of the first side face part from the rear side while the reflective sheet is attached to the rear side support member. | 08-07-2014 |
20140218894 | DISPLAY DEVICE - A display device includes a display component, a plurality of light sources, a flat optical member, a rear side support member, and a reflective sheet. The light sources are disposed on a rear side of the display device relative to the display component. The light sources irradiate the display component with light. The light sources are arranged with respect to the rear side support member such that among light emitted towards the display component from an edge-side light source that is disposed closest to an edge portion of the rear side support member out of the light sources, light emitted at a brightness that is at least half of an maximum brightness of the edge-side light source reaches an edge portion of the flat optical member corresponding to the edge portion of the rear side support member. | 08-07-2014 |
20150055052 | DISPLAY DEVICE - A display device includes a display panel, a backlight unit, a diffuser, a support member, and a diffusion member. The display panel is configured to display images. The backlight unit is configured to emit light toward a rear face of the display panel. The diffuser is disposed between the display panel and the backlight unit, and is configured to diffuse the light from the backlight unit toward the rear face of the display panel. The support member supports a rear face of the diffuser to prevent sagging of the diffuser toward the backlight unit. The diffusion member is disposed around the support member to diffuse the light toward a region of the diffuser corresponding to the support member. | 02-26-2015 |
20150055350 | ILLUMINATION DEVICE AND DISPLAY DEVICE - An illumination device that includes a substrate; a light-emitting diode (LED) disposed on the substrate; and a lens that faces the LED and widens a light-distribution angle of light emitted from the LED. The lens includes a plurality of legs adhered to the substrate by an adhesive, and each of the plurality of legs includes a contact surface that is curved in a convex shape. | 02-26-2015 |
20150276148 | REFLECTIVE SHEET, DISPLAY DEVICE AND REFLECTIVE MEMBER - A reflective sheet includes a bottom portion; a plurality of inclined portions disposed at an incline from a periphery of the bottom portion; and a fold disposed in a predetermined position on the reflective sheet at a predetermined position in a direction orthogonal to a surface of the bottom portion | 10-01-2015 |