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    • 5. 发明授权
    • Light guide plate having sag control patterns and back light unit using the same
    • 具有下垂控制图案的导光板和使用其的背光单元
    • US09128225B2
    • 2015-09-08
    • US13821711
    • 2011-05-02
    • Dong Hyun LeeDong Mug SeongBeom Sun HongJun Phill Eom
    • Dong Hyun LeeDong Mug SeongBeom Sun HongJun Phill Eom
    • F21V7/04F21V8/00
    • G02B6/005G02B6/0036G02B6/0058
    • The present invention relates to a backlight unit with sag control patterns, comprising a light source formed in a side surface of a light guide plate; and a plurality of optical patterns formed on a lower surface of the light guide plate, sag of the plurality of optical patterns increasing as the optical patterns become more distant from the light source. By controlling sag of optical patterns formed in a light guide plate, efficiency of light emitted from a backlight unit can be improved and uniformity of the light can be maintained. Also, since sag of optical patterns can be controlled, by increasing the number of optical patterns (by improving fill factor), light efficiency and uniformity can be controlled easily. Also, compared with a conventional method for manufacturing white dot patterns, white dot patterns can be more efficiently manufactured in terms of development time and costs.
    • 本发明涉及具有下垂控制图案的背光单元,其包括形成在导光板的侧表面中的光源; 以及形成在导光板的下表面上的多个光学图案,多个光学图案的下垂随着光学图案变得远离光源而增加。 通过控制在导光板中形成的光学图案的下垂,可以提高从背光单元发出的光的效率,并且可以保持光的均匀性。 此外,由于可以控制光学图案的下垂,通过增加光学图案的数量(通过改善填充因子),可以容易地控制光效率和均匀性。 此外,与用于制造白点图案的常规方法相比,可以在开发时间和成本方面更有效地制造白点图案。