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公开(公告)号：US20180158406A1
公开(公告)日：2018-06-07
申请号：US15798812
申请日：2017-10-31
发明人： Keunwoo KIM , Sooyoung PARK , Joonghyun PARK , Dongwoo KIM , Kyoung-Ju SHIN
IPC分类号： G09G3/3233 , G09G3/3283
CPC分类号： G09G3/3233 , G09G3/3283 , G09G2230/00 , G09G2300/0426 , G09G2300/0439 , G09G2300/0819 , G09G2300/0842 , G09G2310/0216 , G09G2320/0233 , G09G2320/045 , H05B33/0896
摘要： A display device includes pixels configured to emit light of various intensity in accordance with driving signals, data lines, scan lines, and a power supply unit configured to supply at least one driving voltage to the pixels. At least one of the pixels may comprise a switching transistor having a first electrode connected to one of the data lines and a second electrode connected to a first node, and a gate electrode connected to one of the scan lines, a driving transistor connected between the power supply unit and an organic light emitting diode, a storage capacitor having a first terminal connected to the first node and a second terminal connected to a gate electrode of the driving transistor, and a first transistor connected between the first node and a first electrode of the driving transistor.
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公开(公告)号：US20230377520A1
公开(公告)日：2023-11-23
申请号：US18362335
申请日：2023-07-31
发明人： Keunwoo KIM
IPC分类号： G09G3/3241 , G09G3/3266 , G09G3/3291
CPC分类号： G09G3/3241 , G09G3/3266 , G09G3/3291 , G09G2310/0278 , G09G2300/0439
摘要： A pixel includes an organic light emitting diode that includes first and second terminals. A driving transistor generates a driving current, and includes a first terminal for a first power supply voltage, a second terminal connected to the first terminal of the organic light emitting diode, and a gate terminal for an initialization voltage. The first switching transistor includes a first terminal connected to a first node, a second terminal connected to the gate terminal of the driving transistor, and a gate terminal for a data initialization gate signal. The second switching transistor includes a first terminal for the initialization voltage, a second terminal connected to the first node, a first gate terminal for the data initialization gate signal, and a second gate terminal for a light emitting element initialization signal. The first terminal of the organic light emitting diode is connected to the first node.
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公开(公告)号：US20160365048A1
公开(公告)日：2016-12-15
申请号：US14996250
申请日：2016-01-15
发明人： Keunwoo KIM
IPC分类号： G09G3/36
摘要： A display device includes a data driver connected to j- and (j+1)-th data lines, a scan driver connected to i- and (i+1)-th scan lines, and a display panel including k- and (k+1)-th pixel units. The k-th pixel unit includes an i-th transistor with a gate electrode connected to the i-th scan line, a first electrode connected to the j-th data line, and a second electrode connected to an i-th pixel electrode. The (k+1)-th pixel unit includes an (i+1)-th transistor having a gate electrode connected to the (i+1)-th scan line, a first electrode connected to the j-th data line, and a second electrode connected to an (i+1)-th pixel electrode. The i- and (i+1)-th transistors are turned on at a same time, and a kickback voltage of the i-th transistor is less than a kickback voltage of the (i+1)-th transistor.
摘要翻译： 显示装置包括连接到第j和第（j + 1）数据线的数据驱动器，连接到第i和第（i + 1）扫描线的扫描驱动器，以及包括k-和（k +1）像素单位。 第k个像素单元包括具有连接到第i个扫描线的栅电极的第i晶体管，连接到第j个数据线的第一电极和连接到第i个像素电极的第二电极。 第（k + 1）个像素单元包括具有连接到第（i + 1）扫描线的栅电极的第（i + 1）晶体管，连接到第j数据线的第一电极，以及 连接到第（i + 1）像素电极的第二电极。 第i和第（i + 1）晶体管同时导通，第i晶体管的反冲电压小于第（i + 1）晶体管的反冲电压。
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公开(公告)号：US20230309343A1
公开(公告)日：2023-09-28
申请号：US18089457
申请日：2022-12-27
发明人： Keunwoo KIM , Taewook KANG , Yeoungkeol WOO , Woo-Seok JEON
IPC分类号： H10K59/121
CPC分类号： H10K59/1213 , H10K59/1216
摘要： A display device includes a substrate, an active pattern disposed on the substrate, and including a first area, a second area, a (1-1)th channel area, a (1-2)th channel area, and a third area disposed between the (1-1)th channel area and the (1-2)th channel area, a first insulating layer disposed on the substrate and covering the active pattern, a second insulating layer which is disposed on the first insulating layer and in which an opening overlapping the (1-2)th channel area, the second area, and the third area is defined, a first gate electrode disposed on the first insulating layer and overlapping the (1-1)th channel area the (1-2)th channel area, respectively, and a high dielectric layer disposed on the first insulating layer and the second insulating layer, covering the first gate electrode, and filling the opening.
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公开(公告)号：US20220262881A1
公开(公告)日：2022-08-18
申请号：US17526343
申请日：2021-11-15
发明人： Keunwoo KIM
摘要： A display device may include a substrate, a first active layer disposed on the substrate and including a first source region, a first drain region, and a first channel region disposed between the first source region and the first drain region, a first gate insulating layer covering the first active layer on the substrate, first gate electrodes disposed in opposite sides of the first channel region on the first gate insulating layer, a second gate insulating layer covering the first gate electrodes on the first gate insulating layer, a second gate electrode disposed in a central portion of the first channel region on the second gate insulating layer, and a first connection electrode disposed on the second gate electrode and connected to the first and second gate electrodes.
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公开(公告)号：US20210249542A1
公开(公告)日：2021-08-12
申请号：US17086545
申请日：2020-11-02
发明人： Jaeseob LEE , Meejae KANG , Yoonho KHANG , Keunwoo KIM , Hanbit KIM , Thanhtien NGUYEN
IPC分类号： H01L29/786 , H01L27/32
摘要： A display device including: a first thin film transistor (TFT) including a first semiconductor layer and a first gate electrode, the first semiconductor layer including a first channel region, a first source region, and a first drain region; a third TFT including a third semiconductor layer and a third gate electrode, the third semiconductor layer including a third channel region, a third source region, and a third drain region, wherein a leakage current of the third TFT in an off-state is less than a leakage current of the first TFT in the off-state; and a pixel electrode connected to one of the first source region and the first drain region, wherein the one of the first source region and the first drain region is connected to the third TFT.
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公开(公告)号：US20160216570A1
公开(公告)日：2016-07-28
申请号：US14836601
申请日：2015-08-26
发明人： Gunwoo YANG , Keunwoo KIM , Youngseung KIM , Sooyoung PARK , Kichan JEON , Munsoo PARK
IPC分类号： G02F1/1343
CPC分类号： G02F1/134309 , G02F1/133707 , G02F1/1368 , G02F2001/134345 , G02F2201/40
摘要： A liquid crystal display (LCD) device improves an aperture ratio and stabilizing a storage voltage, including a first substrate; a second substrate opposed to the first substrate; a liquid crystal layer between the first substrate and the second substrate; a gate line and a data line on the first substrate; a semiconductor layer overlapping the gate line; a first drain electrode overlapping the gate line and the semiconductor layer and connected to the data line; a first source electrode overlapping the gate line and the semiconductor layer; a first sub-pixel electrode connected to the first source electrode; a second drain electrode overlapping the gate line and the semiconductor layer and connected to the first drain electrode; a second source electrode overlapping the gate line and the semiconductor layer; and a second sub-pixel electrode connected to the second source electrode. The second source electrode overlaps the gate line more than the first source electrode does.
摘要翻译： 液晶显示器（LCD）装置提高开口率并稳定包括第一基板的存储电压; 与第一基板相对的第二基板; 第一基板和第二基板之间的液晶层; 第一基板上的栅极线和数据线; 与栅极线重叠的半导体层; 与栅极线和半导体层重叠并连接到数据线的第一漏电极; 与栅极线和半导体层重叠的第一源电极; 连接到第一源电极的第一子像素电极; 与栅极线和半导体层重叠并连接到第一漏电极的第二漏电极; 与栅极线和半导体层重叠的第二源电极; 以及连接到第二源电极的第二子像素电极。 第二源电极比第一源电极重叠栅极线。
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公开(公告)号：US20230130200A1
公开(公告)日：2023-04-27
申请号：US17871089
申请日：2022-07-22
发明人： Keunwoo KIM
IPC分类号： G09G3/3241 , G09G3/3291 , G09G3/3266
摘要： A pixel includes an organic light emitting diode that includes first and second terminals. A driving transistor generates a driving current, and includes a first terminal for a first power supply voltage, a second terminal connected to the first terminal of the organic light emitting diode, and a gate terminal for an initialization voltage. The first switching transistor includes a first terminal connected to a first node, a second terminal connected to the gate terminal of the driving transistor, and a gate terminal for a data initialization gate signal. The second switching transistor includes a first terminal for the initialization voltage, a second terminal connected to the first node, a first gate terminal for the data initialization gate signal, and a second gate terminal for a light emitting element initialization signal. The first terminal of the organic light emitting diode is connected to the first node.
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公开(公告)号：US20230048817A1
公开(公告)日：2023-02-16
申请号：US17719849
申请日：2022-04-13
发明人： Keunwoo KIM , Taewook KANG , Jaeseob LEE , Sanggun CHOI
摘要： A display device includes a first active layer disposed on a substrate and including a source area, a resistance area, and a drain area spaced apart from the source area by the resistance area, a first gate electrode and a second gate electrode disposed on the first active layer and overlapping the first active layer, and a first power voltage electrode disposed on the first gate electrode and the second gate electrode and overlapping the resistance area in a cross-sectional view. In this case, the resistance area of the active layer and the first power voltage electrode may form a floating node capacitor. Accordingly, in a case that the first gate electrode and the second gate electrode form a dual gate transistor with the active layer, an instantaneous voltage increase may be suppressed and current leakage may be prevented.
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公开(公告)号：US20200082755A1
公开(公告)日：2020-03-12
申请号：US16684686
申请日：2019-11-15
发明人： Keunwoo KIM , Sooyoung PARK , Joonghyun PARK , Dongwoo KIM , Kyoung-Ju SHIN
IPC分类号： G09G3/3233 , G09G3/3283
摘要： A display device includes: pixels to emit light of various intensity in accordance with driving signals; data lines to communicate the driving signals to the pixels; scan lines to communicate scan signals to select at least one of the pixels to receive the driving signal; and a power supply to supply at least one driving voltage to the pixels. The at least one pixel includes: a switching transistor including an oxide transistor, the switching transistor having a first electrode connected to the data line, a second electrode connected to a first node, and first and second gate electrodes, each of which is connected to one of the scan lines, and a driving transistor including a poly-silicon transistor, and the driving transistor being connected between the power supply and an organic light emitting diode.
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