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公开(公告)号：US11502111B2
公开(公告)日：2022-11-15
申请号：US17320963
申请日：2021-05-14
发明人： Sunwoo Lee , Kihyun Kim , Younggil Park , Seulgi Lee , Geunhyuk Choi , Jaebum Han
IPC分类号： H01L27/14 , H01L27/12 , H01L29/786
摘要： A display apparatus includes a first silicon transistor including a first semiconductor layer including a silicon-based semiconductor and a first gate electrode; a first oxide transistor including a second semiconductor layer and a second gate electrode, the second semiconductor layer including an oxide-based semiconductor; an upper insulating layer on the first and second semiconductor layers; and a first connection electrode on the upper insulating layer, electrically connected to the first semiconductor layer through a first contact hole of the upper insulating layer, and electrically connected to the second semiconductor layer through a second contact hole of the upper insulating layer. The second semiconductor layer includes a channel region, a source region, and a drain region, and a first distance between the channel region of the second semiconductor layer and the first contact hole is about 2 μm or greater.
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公开(公告)号：US09767736B2
公开(公告)日：2017-09-19
申请号：US14968454
申请日：2015-12-14
发明人： Sanghyun Lee , Geunhyuk Choi , Hyejung Hong
CPC分类号： G09G3/3406 , G09G3/3648 , G09G2320/062 , G09G2320/064 , H05B33/086
摘要： A backlight unit of a display apparatus includes a power converter generating a light source power voltage in response to a power control signal, a first node, a second node, a light emitting element connected between the first node and the second node, and a controller connected to the second node. The light emitting element is configured to receive the light source power voltage through the first node, and the controller is configured to output the power control signal for controlling current flowing through the light emitting element in response to a dimming signal. When the dimming signal has a first level, the controller outputs the power control signal to turn off the power converter.
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