Display backlight unit with lightguide having first and second prism patterns

    公开(公告)号:US11428862B2

    公开(公告)日:2022-08-30

    申请号:US17261578

    申请日:2019-06-04

    Abstract: A display device includes a display panel for displaying an image; a light guide plate overlapping the display panel and having a light exit surface, a bottoms surface opposite to the light exit surface, and a plurality of edge surfaces; and a plurality of light sources spaced apart from each other and configured to project light into a first edge surface of the plurality of edge surfaces of the light guide plate. The bottom surface includes a plurality of diffusion parts defining an activation area adjacent to a second edge surface of the plurality of edge surfaces opposite to the first edge surface, and a plurality of functional pattern parts defining a pattern area adjacent to the first edge surface. The functional pattern parts overlap a space between adjacent light sources, respectively, when viewed in a first direction heading from the light source part to the first edge surface.

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