Micro LED array illumination source

    公开(公告)号:US10908507B2

    公开(公告)日:2021-02-02

    申请号:US15910775

    申请日:2018-03-02

    Abstract: Embodiments of the present disclosure generally relate to apparatuses and systems for performing photolithography processes. More particularly, compact illumination tools for projecting an image onto a substrate are provided. In one embodiment, an illumination tool includes a microLED array including one or more microLEDs. Each microLED produces at least one light beam. The illumination tool also includes a beamsplitter adjacent the microLED array, a camera adjacent the beamsplitter, and a projection optics system adjacent the beamsplitter.

    MANUFACTURING MICRO-LED DISPLAYS TO REDUCE SUBPIXEL CROSSTALK

    公开(公告)号:US20220310872A1

    公开(公告)日:2022-09-29

    申请号:US17701599

    申请日:2022-03-22

    Abstract: A method for manufacturing micro-LED displays includes depositing a first material over a substrate having a plurality of micro-LEDs such that the plurality of micro-LEDs are covered by the first material and the first material fills gaps laterally separating the micro-LEDs, removing a portion of the first material from the gaps that laterally separate the plurality of micro-LEDs to form trenches that extend to or below light-emitting layers of the micro-LEDs, depositing a second material over the substrate such that the second material covers the first material and extends into the trenches, and removing a portion of the first and second material over the plurality of micro-LEDs to expose top surfaces of the plurality of micro-LEDs and such that isolation walls positioned in the gaps between the plurality of micro-LEDs extend vertically higher than the top surface of the first material.

    Spatial light modulator with variable intensity diodes

    公开(公告)号:US10684555B2

    公开(公告)日:2020-06-16

    申请号:US15933147

    申请日:2018-03-22

    Abstract: Embodiments of the present disclosure generally relate to an image projection system. The image projection system includes an active matrix solid state emitter (SSE) device. The active matrix solid state emitter includes a substrate, a silicon layer, and a emitter substrate. The silicon layer is deposited over the substrate having a plurality of transistors formed therein. The emitter substrate is positioned between the silicon layer and the substrate. The emitter substrate comprises a plurality of emitter arrays. Each emitter array defines a pixel, wherein one pixel comprises one or more transistors from the plurality of transistors. Each transistor is configured to receive a variable amount of current.

    Shifting of patterns to reduce line waviness

    公开(公告)号:US10591815B2

    公开(公告)日:2020-03-17

    申请号:US16021350

    申请日:2018-06-28

    Abstract: Embodiments described herein provide a method shifting mask pattern data during a digital lithography process to reduce line waviness of an exposed pattern. The method includes providing a mask pattern data having a plurality of exposure polygons to a processing unit of a digital lithography system. The processing unit has a plurality of image projection systems that receive the mask pattern data. Each image projection system corresponds to a portion of a plurality of portions of a substrate and receives an exposure polygon corresponding to the portion. The substrate is scanned under the plurality of image projection systems and pluralities of shots are projected to the plurality of portions while shifting the mask pattern data. Each shot of the pluralities of shots is inside the exposure polygon corresponding to the portion.

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