OPTICAL PATH CONTROL MEMBER AND DISPLAY DEVICE COMPRISING SAME

    公开(公告)号:US20230176406A1

    公开(公告)日:2023-06-08

    申请号:US17995256

    申请日:2021-04-06

    Abstract: An optical path control member according to an embodiment comprises: a first substrate; a first electrode arranged on the first substrate; a second substrate arranged on the first substrate; a second electrode arranged beneath the second substrate; and a light conversion unit arranged between the first electrode and the second electrode, wherein the light conversion unit comprises a partition part and an accommodation part alternately arranged, the accommodation part includes a dispersion liquid and light conversion particles dispersed in the dispersion liquid, the accommodation part operates in a public mode or a privacy mode according to whether a voltage is applied, a first voltage is applied when changing from the privacy mode to the public mode, a second voltage and a third voltage are applied when changing from the public mode to the privacy mode, and the second voltage and/or the third voltage include a pulse voltage.

    LIGHT ROUTE CONTROL MEMBER AND DISPLAY HAVING THE SAME

    公开(公告)号:US20240094591A1

    公开(公告)日:2024-03-21

    申请号:US17754681

    申请日:2020-09-21

    CPC classification number: G02F1/167 G02B5/206 G02B26/08 G02F1/1335

    Abstract: An optical path control member according to an embodiment comprises: a first substrate; a first electrode provided on the upper portion of the first substrate; a second substrate provided on the first substrate; a second electrode provided on the lower portion of the second substrate; and an optical conversion unit provided between the first electrode and the second electrode, wherein the optical conversion unit comprises partition wall parts and accommodation parts which are alternately arranged. The accommodation parts have a light transmission rate that varies according to the application of a voltage, and the accommodation parts comprise a plurality of unit accommodation cells spaced apart from each other, and comprises a dispersion and light-absorbing particles which are dispersed in the dispersion. The light-absorbing particles comprise first particles and second particles, wherein the diameter of the first particles is greater than that of the second particles, and the surfaces of the first particles and the surfaces of the second particles are charged with the same polarity.

    LIGHT PATH CONTROL MEMBER AND DISPLAY DEVICE COMPRISING SAME

    公开(公告)号:US20230341742A1

    公开(公告)日:2023-10-26

    申请号:US18043812

    申请日:2021-09-03

    CPC classification number: G02F1/1681 G02F1/1323 G02F1/167 G06F3/041

    Abstract: A light path control member according to an embodiment comprises: a first substrate; a first electrode disposed on the first substrate; a second substrate disposed on the first substrate; a second electrode disposed under the second substrate; and a light conversion part disposed between the first electrode and the second electrode, wherein: the light conversion part comprises a plurality of partition wall portions, a plurality of receiving portions, and a base portion; a light conversion material is disposed in the receiving portions; the light conversion part includes a first sealing portion which seals the light conversion material; the first sealing portion extends in a direction from one end to the other end thereof; and the other end of the first sealing portion is arranged to extend into the inner area of the receiving portions.

    OPTICAL PATH CONTROL MEMBER AND DISPLAY DEVICE COMPRISING SAME

    公开(公告)号:US20230194917A1

    公开(公告)日:2023-06-22

    申请号:US17923484

    申请日:2021-04-15

    CPC classification number: G02F1/133512 G02F1/133519 G02F1/1334

    Abstract: An optical path control member according to an embodiment comprises an adhesive layer disposed between a second electrode and a light conversion part, wherein: the light conversion part includes a partition wall part and a reception part alternately arranged; the partition wall part includes a first area from the upper surface of the partition wall part up to 30 μm in a direction toward the first substrate, a third area from the lower surface of the partition wall part up to 30 μm in a direction toward the second substrate, and a second area provided between the first area and the third area; and Si measured by XPS in the first area corresponds to 2 at % or less.

    LIGHT ROUTE CONTROL MEMBER AND DISPLAY DEVICE COMPRISING SAME

    公开(公告)号:US20230044139A1

    公开(公告)日:2023-02-09

    申请号:US17758618

    申请日:2021-01-08

    Abstract: A light path control member according to an embodiment comprises: a first substrate; a first electrode disposed on the first substrate; a second substrate disposed on the first substrate; a second electrode disposed under the second substrate; a light conversion part disposed between the first electrode and the second electrode; and an adhesive layer disposed between the second electrode and the light conversion part, wherein the light conversion part comprises alternately disposed partition wall portions and accommodating portions, the accommodating portions comprise a dispersion and a plurality of light absorbing particles disposed in the dispersion, and the log volume resistivity of the adhesive layer is 9 Ω·cm to 15 Ω·cm.

    OPTICAL PATH CONTROL MEMBER AND DISPLAY DEVICE COMPRISING SAME

    公开(公告)号:US20240411201A1

    公开(公告)日:2024-12-12

    申请号:US18699119

    申请日:2022-09-30

    Abstract: An optical path control member, according to one embodiment, comprises: a first substrate; a first electrode arranged on the first substrate; a second substrate arranged on the first substrate; a second electrode arranged under the second substrate; a light conversion unit arranged between the first electrode and the second electrode; and a buffer layer arranged between the first electrode and the light conversion unit, wherein the buffer layer has a thickness of 0.1 μm or less.

    LIGHT ROUTE CONTROL MEMBER AND DISPLAY HAVING THE SAME

    公开(公告)号:US20240085736A1

    公开(公告)日:2024-03-14

    申请号:US17754762

    申请日:2020-09-22

    Abstract: An optical path control member according to an embodiment comprises: a first substrate; a first electrode arranged on the upper surface of the first substrate; a second substrate arranged on top of the first substrate; a second electrode arranged on the lower surface of the second substrate; and an optical conversion unit which is arranged between the first electrode and the second electrode and which defines a first direction and a second direction, wherein the optical conversion unit comprises a partition part and an accommodation part that are alternately arranged in the first direction, the accommodation part includes a plurality of cells arranged to be spaced in the second direction, at least one of the cells includes a first inner side surface and a second inner side surface that are connected to each other, and the first inner side surface and/or the second inner side surface extends in a direction other than the first and second directions.

    LIGHT ROUTE CONTROL MEMBER AND DISPLAY DEVICE COMPRISING SAME

    公开(公告)号:US20230045017A1

    公开(公告)日:2023-02-09

    申请号:US17758858

    申请日:2021-01-12

    Abstract: A light path control member according to an embodiment comprises: a first substrate; a first electrode disposed on the first substrate; a second substrate disposed on the first substrate; a second electrode disposed below the second substrate; and a light conversion unit disposed between the first electrode and the second electrode, wherein the light conversion unit includes a partition wall and an accommodation part that are arranged alternately, the accommodation part changes in light transmittance according to the application of voltage, the accommodation part includes a dispersion liquid and light conversion particles dispersed in the dispersion liquid, the contact surface between the partition wall and the accommodation part is inclined at an inclination angle with respect to a reference axis perpendicular to the upper surface of the first substrate, and the inclination angle is 1° to 10°.

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