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1.发明公开公开(公告)号：US20230230551A1
公开(公告)日：2023-07-20
申请号：US18068861
申请日：2022-12-20
发明人： Hyunji Yoon , Yangwook Kim , Kyungchun Kim , Sukyun Woo , Pansoo Kim , Byungil Kim , Hyeongtae Kim , Jisu Yoon
IPC分类号： G09G3/34
CPC分类号： G09G3/3406 , G09G3/32
摘要： A method of driving a light emitting diode (LED) backlight unit, which includes a plurality of LED elements that are connected to a plurality of gate lines and a plurality of source lines, includes generating a plurality of gate signals applied to the plurality of gate lines. While the plurality of gate signals are generated, a non-overlap interval between activation intervals of two adjacent gate signals is generated. All of the plurality of gate signals are deactivated during the non-overlap interval. A plurality of source signals applied to the plurality of source lines are generated. While the plurality of source signals are generated, a high-impedance (Hi-Z) interval included in the non-overlap interval is generated. At least some of the plurality of source signals have a high-impedance state during the high-impedance interval.
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2.发明授权公开(公告)号：US11875755B2
公开(公告)日：2024-01-16
申请号：US18068861
申请日：2022-12-20
发明人： Hyunji Yoon , Yangwook Kim , Kyungchun Kim , Sukyun Woo , Pansoo Kim , Byungil Kim , Hyeongtae Kim , Jisu Yoon
CPC分类号： G09G3/3406 , G09G3/32 , G09G2300/0819 , G09G2310/0202 , G09G2330/021
摘要： A method of driving a light emitting diode (LED) backlight unit, which includes a plurality of LED elements that are connected to a plurality of gate lines and a plurality of source lines, includes generating a plurality of gate signals applied to the plurality of gate lines. While the plurality of gate signals are generated, a non-overlap interval between activation intervals of two adjacent gate signals is generated. All of the plurality of gate signals are deactivated during the non-overlap interval. A plurality of source signals applied to the plurality of source lines are generated. While the plurality of source signals are generated, a high-impedance (Hi-Z) interval included in the non-overlap interval is generated. At least some of the plurality of source signals have a high-impedance state during the high-impedance interval.
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3.发明授权公开(公告)号：US12131708B2
公开(公告)日：2024-10-29
申请号：US18530891
申请日：2023-12-06
发明人： Hyunji Yoon , Yangwook Kim , Kyungchun Kim , Sukyun Woo , Pansoo Kim , Byungil Kim , Hyeongtae Kim , Jisu Yoon
CPC分类号： G09G3/3406 , G09G3/32 , G09G2300/0819 , G09G2310/0202 , G09G2330/021
摘要： A method of driving a light emitting diode (LED) backlight unit, which includes a plurality of LED elements that are connected to a plurality of gate lines and a plurality of source lines, includes generating a plurality of gate signals applied to the plurality of gate lines. While the plurality of gate signals are generated, a non-overlap interval between activation intervals of two adjacent gate signals is generated. All of the plurality of gate signals are deactivated during the non-overlap interval. A plurality of source signals applied to the plurality of source lines are generated. While the plurality of source signals are generated, a high-impedance (Hi-Z) interval included in the non-overlap interval is generated. At least some of the plurality of source signals have a high-impedance state during the high-impedance interval.
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公开(公告)号：US10186219B2
公开(公告)日：2019-01-22
申请号：US15187920
申请日：2016-06-21
发明人： Yong-Hun Kim , Hyunsang Park , Kyungchun Kim , Jae-Bum Lee
摘要： A digital-to-analog converter includes an amplifier including at least two input terminals corresponding to a non-inverting input terminal; and a chopping unit performing a chopping operation between voltages provided to the at least two input terminals corresponding to the non-inverting input terminal. The digital-to-analog converter has an X+Y bit structure and removes an offset by performing an interpolation chopping operation and/or a main buffer chopping operation at the same time. The digital-to-analog structure can be embodied in a small area and can process high bit image data.
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