Backlight structure and display device

    公开(公告)号:US11221442B2

    公开(公告)日:2022-01-11

    申请号:US16326008

    申请日:2018-04-25

    Abstract: A backlight structure is provided in embodiments of the disclosure, including: a base plate; a light guide plate, on a surface of the base plate at a side thereof and having a plurality of through-holes passing therethrough; a plurality of LED chips, on a surface of the base plate at the same side as the light guide plate, each of the plurality of LED chips being located in one-to-one correspondence within one of the plurality of through-holes of the light guide plate; a fluorescent powder filler filling the plurality of through-holes; a plurality of reflecting elements, on a first surface of the light guide plate facing away from the base plate, respectively, and covering the plurality of through-holes which open outwards at the first surface of the light guide plate, respectively; and a plurality of light extracting structures, on the first surface of the light guide plate, respectively, and configured to guide light to exit therefrom.

    BACKLIGHT STRUCTURE AND DISPLAY DEVICE

    公开(公告)号:US20210341666A1

    公开(公告)日:2021-11-04

    申请号:US16326008

    申请日:2018-04-25

    Abstract: A backlight structure is provided in embodiments of the disclosure, including: a base plate; a light guide plate, on a surface of the base plate at a side thereof and having a plurality of through-holes passing therethrough; a plurality of LED chips, on a surface of the base plate at the same side as the light guide plate, each of the plurality of LED chips being located in one-to-one correspondence within one of the plurality of through-holes of the light guide plate; a fluorescent powder filler filling the plurality of through-holes; a plurality of reflecting elements, on a first surface of the light guide plate facing away from the base plate, respectively, and covering a side of the plurality of through-holes away from which open outwards at the base first surface of the light guide plate, respectively; and a plurality of light extracting structures, on the first surface of the light guide plate, respectively, and configured to guide light to exit therefrom.

    SMART WINDOW, SMART WINDOW SYSTEM, METHOD OF OPERATING SMART WINDOW, AND METHOD OF FABRICATING SMART WINDOW

    公开(公告)号:US20210215989A1

    公开(公告)日:2021-07-15

    申请号:US16638941

    申请日:2019-03-08

    Inventor: Lu Yu

    Abstract: A smart window configured to transition between a substantially transparent state and a dimmed state. The smart window includes a first substantially transparent conductive layer; an ion storage layer on the first substantially transparent conductive layer; an electrolyte layer on a side of the ion storage layer away from the first substantially transparent conductive layer; an electrochromic layer on a side of the electrolyte layer away from the ion storage layer; a second substantially transparent conductive layer on a side of the electrochromic layer away from the electrolyte layer; and an antenna layer configured to receive wireless power transmissions to provide energy for the smart window to transition between the substantially transparent state and the dimmed state. An orthographic projection of the electrochromic layer on the first substantially transparent conductive layer substantially covers an orthographic projection of the antenna layer on the first substantially transparent conductive layer.

    Viewing angle controlling light source device and display apparatus

    公开(公告)号:US10120260B2

    公开(公告)日:2018-11-06

    申请号:US15541978

    申请日:2016-11-17

    Abstract: A viewing angle controlling light source device and a display apparatus are provided. The viewing angle controlling light source device includes a base substrate; a light emitting array arranged on the base substrate, wherein the light emitting array includes a plurality of light emitting units; at least one liquid crystal lens array arranged on the light emitting array, wherein the liquid crystal lens array includes a plurality of liquid crystal lens units corresponding to the light emitting units one by one, each liquid crystal lens unit includes a first electrode and a second electrode, and a liquid crystal layer arranged between the first electrode and the second electrode, a light emergent direction of light emitted by the light emitting unit after the light transmitting through the liquid crystal lens unit by regulating a voltage difference between the first electrode and the second electrode.

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