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    • 36. 发明申请
    • DISPLAY DEVICE HAVING REFLECTING SHEET WITH PLURALITY OF DOT AREAS REDUCING REFLECTIVITY OF THE REFLECTING SHEET
    • US20230121964A1
    • 2023-04-20
    • US18086935
    • 2022-12-22
    • LG ELECTRONICS INC.
    • Sewon OHEunseok KIM
    • F21V7/00G02F1/13357G02F1/1335
    • A display device including a display panel; a frame at a rear of the display panel; a light source on a substrate between the display panel and the frame, the light source providing light for the display panel; and a reflecting sheet between the display panel and the frame, the reflecting sheet having a rectangular shape with a first long side, a second long side opposite the first long side, a first short side adjacent to the first long side and the second long side, and a second short side opposite the first short side, wherein the reflecting sheet includes a first sheet part forming a central area of the reflecting sheet; a second sheet part forming a side area of the reflecting sheet around the first sheet part, the second sheet part including dot areas; and a hole next to a border line between the first sheet part and the second sheet part, wherein at least one of the dot areas in the second sheet part is formed along the first short side or the second short side, wherein the at least one of the dot areas including a first dot area next to the hole in a parallel direction of the first long side or the second long side and a second dot area next to the first dot area in a parallel direction of the first short side or the second short side, and wherein a density of dots in the first dot area is different from a density of dots in the second dot area.
    • 37. 发明申请
    • IMPELLER
    • US20230120338A1
    • 2023-04-20
    • US17909960
    • 2021-03-11
    • LG ELECTRONICS INC.
    • Hakkyu CHOISeungjo BAEKJeongho LEE
    • F04D29/28F04D29/30
    • The present invention relates to an impeller comprising: a shroud having a plurality of spiral upper slot units formed therein; a hub located to face the shroud; and a plurality of blades connected to the hub and inserted into the upper slot units to be coupled to the shroud, wherein the blade includes a body portion formed to be inclined to one side and an upper end portion, which is bent upward from the body portion and has a second concave surface formed in one side and a second convex surface formed on the other side thereof, and the upper slot unit includes an upper slot bottom for forming a space in which the upper end portion is inserted; an upper slot wall divided into a first upper slot wall located at the second concave surface side and a second upper slot wall located at the second convex surface side; and a second inclined surface formed to be inclined from the first upper slot wall so as to face the second concave surface. Thus, the impeller secures the assembling of the blades and has the effect of reducing the possibility of separation of the blades during the high-speed rotation of the impeller, which improves the structural rigidity of the impeller.