Patent application number | Description | Published |
20100265435 | DISPLAY APPARATUS HAVING VARIABLE DIFFUSER FILM - In a display apparatus according to an embodiment, a variable diffuser film is disposed between a backlight unit generating light and a display panel displaying an image. The variable diffuser film transmits or scatters the light from the backlight unit in response to an electrical signal to control a viewing angle. The variable diffuser film is disposed between the first and second transparent layers and includes a polymer layer in which liquid crystal molecules transmitting or scattering the light according to the electrical signal are dispersed. The polymer layer has a thickness of about 3 micrometers to about 15 micrometers, and the liquid crystal molecules have an anisotropic refractive index (Δn) of about 0.15 to about 0.25. In one aspect, the display apparatus may automatically switch a narrow viewing angle mode and a wide viewing angle mode, thereby reducing power consumption necessary to switch the narrow and wide viewing angle modes. | 10-21-2010 |
20110157913 | LIGHT GUIDE PLATE, DISPLAY APPARATUS HAVING THE SAME, AND METHOD OF MANUFACTURING THE SAME - A light guide plate includes an incident surface receiving incident light from a light source, an exit section that outputs exit light having a light distribution different from a light distribution of the incident light and a reflective section opposite to the exit section. A plurality of first patterns are formed on the exit section while being arranged in a first direction of the exit section to distribute the exit light with maximum brightness in a direction perpendicular to the exit section. A plurality of second patterns are formed on the reflective section to scatter the incident light. | 06-30-2011 |
20120195020 | LIGHT SOURCE MODULE AND METHOD OF MANUFACTURING THE SAME - A light source module includes a receiving container, a first light source, a second light source, a first resin, and a second resin. The receiving container includes an upper surface, a first bottom surface, and a second bottom surface. The first bottom surface has a first depth from the upper surface. The second bottom surface has a second depth from the upper surface. The first light source is disposed on the first bottom surface. The first light source generates first color light. The second light source is disposed on the second bottom surface. The second light source generates second color light. The first resin is formed on the first light source. The first resin includes a phosphor emitting third color light. The second resin is formed on the first resin and the second light source. | 08-02-2012 |
20120250348 | BACKLIGHT UNIT, METHOD OF FABRICATING THE UNIT, AND DISPLAY APPARATUS INCLUDING THE UNIT - A backlight unit includes a light guide plate configured to guide light and including at least one light incident surface for receiving light, and a light exit surface for directing the received light toward a display panel, a plurality of light sources configured to emit light toward the light incident surface, and an optical member disposed at a light exit surface of the light guide plate to direct light output from the light guide plate. The optical member may include at least one sheet, which may have a first portion positioned over the light exit surface of the light guide plate, and a second portion positioned over the light incident surface. | 10-04-2012 |
20120327685 | LIGHT GUIDE PLATE FOR BACKLIGHT AND MANUFACTURING METHOD THEREFOR - A light guide plate for a backlight. The light guide plate includes: a light source unit for generating light; a light guide plate proximate to the light source unit and including an upper surface and a lower surface; and a light emission pattern configured to diffuse a portion of the light directed toward an image display panel, and a first straight pattern configured to channel the light along a direction substantially parallel to a direction of propagation of the light generated by the light source unit, both the light emission pattern and the first straight pattern being disposed on one of the upper surface and the lower surface of the light guide plate, in which the first straight pattern has peaks and valleys formed in alternating and repeating manner in a direction substantially perpendicular to a direction of propagation of the light generated by the light source unit. | 12-27-2012 |
20130010497 | DISPLAY DEVICE - A display device includes: a first chassis including a bottom surface, and a side wall which extends from an edge of the bottom surface; a light guide plate in the first chassis; a first fixing member which overlaps the side wall of the first chassis and contacts an upper surface of the light guide plate; and a first fastening member which fastens the first fixing member to the side wall of the first chassis. The first chassis includes a groove which extends through the side wall of the first chassis, the light guide plate includes a first protrusion which protrudes from an edge of the light guide plate and extends into the groove, and the first fixing member contacts an upper surface of the first protrusion of the light guide plate. | 01-10-2013 |
20130128606 | LIGHT-EMITTING MODULE, BACKLIGHT ASSEMBLY HAVING THE SAME AND DISPLAY APPARATUS HAVING THE SAME - A light-emitting module includes a light source, a printed circuit board (“PCB”) and a light absorption portion. The light source generates and emits a light, and the light source is on a first surface of the PCB. The light absorption portion is on the first surface of the PCB and absorbs the light. | 05-23-2013 |
20130148333 | LENS, BACKLIGHT ASSEMBLY AND DISPLAY APPARATUS HAVING THE SAME - A lens includes an upper flat surface having a first outer diameter, a bottom surface having a second outer diameter and a third inner diameter, an external curved surface which connects the upper flat surface and the bottom surface, and an inner curved surface which protrudes toward the upper flat surface from the bottom surface at the third inner diameter. | 06-13-2013 |
20140055849 | LIGHT DIFFUSION PLATE, DISPLAY APPARATUS HAVING THE SAME, AND METHOD OF MANUFACTURING THE LIGHT DIFFUSION PLATE - A light diffusion plate includes a body including a first surface through which incident light enters, and a second surface through which light exits and facing the first surface, a light scattering member disposed in the body, and an ultraviolet absorption member disposed in the body. The second surface has a convex pattern. The convex pattern has ridges and valleys arranged in a plurality of columns. The ridges and valleys are sequentially arranged with each other. | 02-27-2014 |
20140146522 | BACKLIGHT UNIT AND DISPLAY DEVICE HAVING THE SAME - A backlight unit includes a light source part configured to emit a light and a reflective sheet disposed under the light source part. The light source part includes a first light source block including a plurality of light sources with first distances therebetween and a second light source block including a plurality of light sources with second distances therebetween. The first distances increase or decrease as the light sources of the first light source block are closer to an end portion of the first light source block than to a center portion of the first light source block, and the second distances increase as the light sources of the second light source block axe closer to an end portion of the second light source block than to a center portion of the second light source block. | 05-29-2014 |
20140204612 | LIGHT GUIDE PLATE FOR BACKLIGHT AND MANUFACTURING METHOD THEREFOR - A light guide plate for a backlight. The light guide plate includes: a light source unit for generating light; a light guide plate proximate to the light source unit and including an upper surface and a lower surface; and a light emission pattern configured to diffuse a portion of the light directed toward an image display panel, and a first straight pattern configured to channel the light along a direction substantially parallel to a direction of propagation of the light generated by the light source unit, both the light emission pattern and the first straight pattern being disposed on one of the upper surface and the lower surface of the light guide plate, in which the first straight pattern has peaks and valleys formed in alternating and repeating manner in a direction substantially perpendicular to a direction of propagation of the light generated by the light source unit. | 07-24-2014 |
20140241010 | DISPLAY DEVICE - A display device includes: a first chassis including a bottom surface, and a side wall which extends from an edge of the bottom surface; a light guide plate in the first chassis; a first fixing member which overlaps the side wall of the first chassis and contacts an upper surface of the light guide plate; and a first fastening member which fastens the first fixing member to the side wall of the first chassis. The first chassis includes a groove which extends through the side wall of the first chassis, the light guide plate includes a first protrusion which protrudes from an edge of the light guide plate and extends into the groove, and the first fixing member contacts an upper surface of the first protrusion of the light guide plate. | 08-28-2014 |