QUANTUM-DOT LED BACKLIGHT MODULE FOR LED DISPLAYS

    公开(公告)号:WO2019108771A1

    公开(公告)日:2019-06-06

    申请号:PCT/US2018/063026

    申请日:2018-11-29

    Abstract: A QD LED module has an LED that emits blue light; a QD structure spaced from the LDE along a line L, the QD structure having a lateral boundary in a direction perpendicular to L; and a transparent structure positioned between the LED and the QD structure. The transparent structure comprises a lateral extension extending beyond the lateral boundary. The lateral extension has an upper surface away from the LED. A first portion of the blue light from the LED passes through the QD structure and is converted and a second portion of the blue light passes through the upper surface which shifts a direction of propagation of the second portion of the blue light toward the line L.

    QUANTUM-DOT LED BACKLIGHT MODULE FOR LED DISPLAYS

    公开(公告)号:WO2019006251A1

    公开(公告)日:2019-01-03

    申请号:PCT/US2018/040208

    申请日:2018-06-29

    Abstract: The QD LED module (10) disclosed herein includes a support assembly (40), a circuit board (20), an LED (30) operably supported by the circuit board, wherein the LED emits blue light (36G). The QD LED module also has a QD structure (60) supported by the support assembly and axially spaced apart from the LED surface. The QD structure has an active area (AR) that includes a first region (R1) of QD material and a second region (R2) that has no QD material. A first portion of the blue light passes through the first region and is converted to red light (36R) and green light (36G). A second portion of the blue light passes through the second region. The QD material has a CIE color point that is shifted toward the yellow portion of the color space.

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