Patent number 8646932 is assigned to
The following quote was obtained by the news editors from the background information supplied by the inventors: "The present disclosure relates a backlight unit and a display device having the same, and more particularly, to a display device in which a backlight unit is realized by a light emitting diode.
"A light emitting diode (LED) may constitute a light emitting source using compound semiconductor materials such as GaAs-based materials, AlGaAs-based materials, GaN-based materials, InGaN-based materials and InGaAlP-based materials.
"Such a light emitting diode is packaged, and thus is being used as a light emitting apparatus that emits light having various colors. The light emitting apparatus is being used as a light source in various fields, e.g., lighting displays, character displays, and image displays."
In addition to the background information obtained for this patent, VerticalNews journalists also obtained the inventors' summary information for this patent: "Embodiments provide a backlight unit having a new structure and a display device having the same.
"Embodiments also provide a slim backlight unit and a display device having the same.
"Embodiments also provide a backlight unit to which a separate driving method is applied and a display device having the same.
"In one embodiment, a backlight unit configured to emit light onto a display panel in which one screen is defined into a plurality of display areas includes: a bottom frame having a bottom surface and a sidewall; a plurality of light emitting diodes (LEDs) defining a plurality of light emitting areas corresponding to the display areas of the display panel; and an integrated light guide plate covering the plurality of LEDs, the integrated light guide plate being disposed on the plurality of light emitting areas corresponding to one screen, wherein the light guide plate has a plurality of recesses for receiving at least one LED in an under surface thereof.
"In another embodiment, a display device includes: a bottom frame having a bottom surface having a square shape and a side wall; a plurality of light emitting diodes (LEDs) locally driven; an integrated light guide plate covering the entire surface of the plurality of LEDs, the integrated light guide plate having a plurality of recesses for receiving at least one LED; and a display panel disposed on the integrated light guide plate.
"According to the embodiments, since the light guide plate is formed in one body to correspond to a screen of the display panel in the backlight unit in which the light emitting areas are locally driven, a dark line occurring between the light guide plates 30 may not occur and a slim backlight unit may be manufactured.
"Also, the separate driving method such as a local dimming method or impulsive method may be provided to reduce power consumption as well as improve contrast of a screen, thereby improving an image quality of the display device.
"The details of one or more embodiments are set forth in the accompanying drawings and the description below. Other features will be apparent from the description and drawings, and from the claims."
URL and more information on this patent, see: Lee,
Keywords for this news article include: Electronics,
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