Mask and deposition apparatus including the same

    公开(公告)号:US11891688B2

    公开(公告)日:2024-02-06

    申请号:US17748596

    申请日:2022-05-19

    CPC classification number: C23C16/042 C23C16/045

    Abstract: A mask includes a protruding portion provided with a deposition hole formed therethrough and including an upper surface, a lower surface facing the upper surface, and a side surface disposed between the upper surface and the lower surface and inclined at an angle with respect to the lower surface, a peripheral portion including a first surface extending from the upper surface, a second surface facing the first surface and having a step difference with respect to the lower surface of the protruding portion, and a coating layer disposed on the protruding portion. The protruding portion includes at least one of a protrusion protruded from the side surface of the protruding portion and a groove formed by removing at least a portion of the protruding portion from the side surface of the protruding portion, and the coating layer covers at least one of the protrusion and the groove.

    DISPLAY DEVICE, METHOD OF MANUFACTURING DISPLAY DEVICE, AND ELECTRONIC DEVICE

    公开(公告)号:US20240324302A1

    公开(公告)日:2024-09-26

    申请号:US18441963

    申请日:2024-02-14

    CPC classification number: H10K59/122 H10K59/1201 H10K71/60

    Abstract: A display device includes a first pixel electrode and a second pixel electrode that are spaced from each other on a substrate, a pixel-defining layer including a first opening and a second opening, a first lower emission layer on the first pixel electrode, a second lower emission layer on the second pixel electrode, a first charge generation layer interposed between the first lower emission layer and a first upper emission layer, a second charge generation layer interposed between the second lower emission layer and a second upper emission layer, an opposite electrode on the first pixel electrode and the second pixel electrode, a heating metal layer on the pixel-defining layer and arranged between the first opening and second opening when seen from a direction perpendicular to the substrate, and an inorganic insulating layer covering the heating metal layer.

Patent Agency Ranking