QUANTUM DOT ARRAY ON DIRECTLY PATTERNED AMOLED DISPLAYS AND METHOD OF FABRICATION

    公开(公告)号:US20180269260A1

    公开(公告)日:2018-09-20

    申请号:US15986294

    申请日:2018-05-22

    IPC分类号: H01L27/32

    摘要: An active matrix OLED apparatus comprises a plurality of pixels each including a layer of three sub-pixel anodes, a transparent cathode layer, and a layer of three sub-pixel OLED emitters disposed between the layer of three sub-pixel anodes and the cathode layer. Each of the plurality of pixels further includes a quantum dot semiconductor nanocrystal layer disposed above the transparent cathode layer, the quantum dot layer comprising a first quantum dot sub-pixel layer having a photoluminescent emission in a first red color wavelength range substantially between 780 to 622 nm, wherein the first quantum dot sub-pixel layer being disposed over one of the three sub-pixel OLED emitters having a light emission wavelength in the first red color wavelength range. The OLED apparatus further includes a controller configured to independently address each of the three sub-pixel OLED emitters via the transparent cathode layer and each of the three sub-pixel anodes.

    METHOD OF DESIGNING AND FABRICATING A MICROLENS ARRAY

    公开(公告)号:US20180209030A1

    公开(公告)日:2018-07-26

    申请号:US15881485

    申请日:2018-01-26

    IPC分类号: C23C14/04

    摘要: In a method for designing and fabricating a micro-lens array, a design is finalized by varying certain features of a shadow mask, varying a distance between a source of lens-forming material and the shadow mask, and varying other parameters until the features and distances result in the formation of a micro-lens having desired shape, etc. A shadow mask in accordance with the design is then fabricated and is appropriately positioned with respect to a micro-display and a source of lens-forming material. A plume of lens-forming material is then generated under reduced pressure and which propagates toward the shadow mask, directly patterning the micro-lenses on sub-pixels of the micro-display.