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公开(公告)号：US11425819B2
公开(公告)日：2022-08-23
申请号：US16796601
申请日：2020-02-20
Applicant: Samsung Display Co., LTD.
Inventor： Won Tae Kim , Ji Hye Kim , Jae Hyeon Jeon
Abstract: A display device includes a folding area, a first unfolding area located on a side of the folding area, and a second unfolding area located on a second side of the folding area. The display device further includes a display module which includes a display panel, and a first circuit board which is attached to the display panel and disposed under the display module, wherein the first circuit board includes a base film, a first driving integrated circuit (“IC”) disposed in the first unfolding area, and a second driving IC disposed in the second unfolding area where the first driving IC and the second driving IC do not overlap each other in a thickness direction during folding.
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公开(公告)号：US11355053B2
公开(公告)日：2022-06-07
申请号：US16709666
申请日：2019-12-10
Applicant: Samsung Display Co., Ltd.
Inventor： Won Tae Kim , Ji Hye Kim , Jae Hyeon Jeon
Abstract: A source driver includes a plurality of output buffers configured to output data signals respectively corresponding to a plurality of data lines, and an output controller configured to control a timing at which each of the data signals corresponding to second image data is transferred from the output buffers to the data lines based on a difference between first image data and the second image data.
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3.发明授权公开(公告)号：US10216040B2
公开(公告)日：2019-02-26
申请号：US14726313
申请日：2015-05-29
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Ji Hye Kim , Kwang Hyun Kim , Sang Jae Kim , Teck Soo Kim , Gwan Young Na , Hyoung Joo Lee , Seon Ah Cho , Hyo Sung Hong
IPC: G02F1/1335 , G02F1/13363 , G02B5/30
Abstract: A cholesteric liquid crystal reflective polarizing plate includes a cholesteric liquid crystal layer and a λ/4 compensation layer disposed on the cholesteric liquid crystal layer. The cholesteric liquid crystal layer includes a first left-handed circularly polarizing portion which extends in a first direction that include a left-handed cholesteric liquid crystal material, and a first right-handed circularly polarizing portion which extends in the first direction adjacent to first left-handed circularly polarizing portion and that includes a right-handed cholesteric liquid crystal material. The λ/4 compensation layer includes a first λ/4 compensation pattern which extends in the first direction and overlapping the first left-handed circularly polarizing portion, and a second λ/4 compensation pattern which extends in the first direction adjacent to the first λ/4 compensation pattern and overlaps the first right-handed circularly polarizing portion. The first λ/4 compensation pattern and the second λ/4 compensation pattern have slow axes perpendicular to each other.
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公开(公告)号：US20160133190A1
公开(公告)日：2016-05-12
申请号：US14702602
申请日：2015-05-01
Applicant: Samsung Display Co., Ltd.
Inventor： Chang-Yeop Kim , Ji Hye Kim
IPC: G09G3/32
CPC classification number: G09G3/3258 , G09G3/2011 , G09G2300/0404 , G09G2300/0819 , G09G2300/0842 , G09G2310/0216 , G09G2310/0251 , G09G2320/0257 , G09G2320/045
Abstract: An organic light emitting diode display includes: a substrate; a scan line, a first emission control line, and a second emission control line on the substrate; a data line and a driving voltage line crossing the scan line; a switching transistor connected to the scan line and the data line and including a switching drain electrode; a driving transistor including a driving source electrode connected to the switching drain electrode; an organic light emitting diode electrically connected to a driving drain electrode of the driving transistor; an operation control transistor to transmit a driving voltage to the driving transistor; and a first emission control transistor and second emission control transistor to transmit the driving voltage from the driving transistor to the organic light emitting diode, wherein the first emission control line and the second emission control line partially overlap each other.
Abstract translation: 有机发光二极管显示器包括：基板; 扫描线，第一发射控制线和第二发射控制线; 数据线和穿过扫描线的驱动电压线; 连接到扫描线和数据线并包括开关漏电极的开关晶体管; 驱动晶体管，其包括连接到所述开关漏电极的驱动源电极; 电连接到驱动晶体管的驱动漏电极的有机发光二极管; 操作控制晶体管，用于向驱动晶体管传输驱动电压; 以及第一发光控制晶体管和第二发光控制晶体管，其将驱动电压从驱动晶体管传输到有机发光二极管，其中第一发光控制线和第二发光控制线部分地彼此重叠。
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公开(公告)号：US12223914B2
公开(公告)日：2025-02-11
申请号：US18206409
申请日：2023-06-06
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Seong Oh Yeom , Yu Chol Kim , Ji Hye Kim , Jin Wook Yang , Eui Myeong Cho , Ja Kyoung Jin
IPC: G09G3/3266 , G09G3/3233
Abstract: A display device includes pixels including a light-emitting element, and an initialization transistor connected between an anode electrode of the light-emitting element and a first initialization power line to which a voltage of initialization power is supplied, and turned on when an initialization scan signal is supplied, and an initialization scan driver which supplies the initialization scan signal. The initial scan driver supplies an i-th (i is a natural number) initial scan signal to overlap an (i−1)-th initial scan signal, and supplies an (i+1)-th initial scan signal so as not to overlap the i-th initial scan signal, and the initialization scan signal is set to a gate-on voltage.
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Patent Agency Ranking
公开(公告)号：US12198617B2
公开(公告)日：2025-01-14
申请号：US18547680
申请日：2021-08-23
Applicant: Samsung Display Co., LTD.
Inventor： Ji Hye Kim , Joon Chul Goh , Yu Chol Kim , Jin Wook Yang , Ja Kyoung Jin
IPC: G09G3/32
Abstract: A display device includes: a display panel including pixels having light-emitting elements; a timing control unit for variably changing the driving frame frequency of the display panel according to the input frame frequency of digital video data; and a data driving unit for outputting data voltages according to the digital video data, wherein the display panel operates at a first frame frequency for a first frame period and operates at a second frame frequency, which is lower than the first frame frequency, for a second frame period, the second frame period includes a data addressing period in which a data voltage corresponding to each of the pixels is applied to the pixels, and a blank period in which no data voltage is applied to each of the pixels, and the blank period includes a period of initializing a first electrode of a light-emitting element into an initialization voltage.
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7.发明授权公开(公告)号：US11741740B2
公开(公告)日：2023-08-29
申请号：US17235359
申请日：2021-04-20
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Jae Ik Lim , Ji Hye Kim , Byung Han Yoo
CPC classification number: G06V40/1318 , H10K59/40 , H10K71/00
Abstract: A fingerprint sensor includes a light sensing layer having a light sensing element in which a sensing current flows in response to incident light and a light guide layer disposed on the light sensing layer. The light guide layer includes first light-transmitting films spaced apart from one another, a light-blocking film disposed between the first light-transmitting films, and a second light-transmitting film disposed between each of the first light-transmitting films and the light-blocking film.
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公开(公告)号：US11482174B2
公开(公告)日：2022-10-25
申请号：US16903295
申请日：2020-06-16
Applicant: Samsung Display Co., Ltd.
Inventor： Yu-Chol Kim , Jin-Wook Yang , Ji Hye Kim , Young Ha Sohn , Jae-Hyeon Jeon
IPC: G09G3/325 , G09G3/3266 , G09G3/3291
Abstract: An embodiment provides a display device including: a light emitting diode; a driving transistor configured to supply a current to the light emitting diode; a switching transistor having an input electrode connected to a data line; and a voltage transmitting capacitor disposed between an output electrode of the switching transistor and a gate electrode of the driving transistor, wherein a data voltage applied to the data line may be transmitted to the gate electrode of the driving transistor through the voltage transmitting capacitor, and the data voltage may have a data voltage value from which a voltage variation variable is removed based on leakage of the switching transistor.
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公开(公告)号：US11341934B2
公开(公告)日：2022-05-24
申请号：US17162138
申请日：2021-01-29
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Dong Gyu Lee , Ji Hye Kim , Jin Wook Yang , Jae Hyeon Jeon
Abstract: An image display system includes a graphic processor which generates an image signal, a control signal, and a variable frequency signal; and a display device which displays an image at a frame frequency corresponding to the variable frequency signal from the graphic processor. The display device includes pixels connected to emission control lines, data lines, and scan lines; a controller which provides reference data including information on reference cycles, which are cycles in which an emission control start signal is output, to the graphic processor, outputs the emission control start signal based on the control signal, and adjusting an output timing of a scan start signal based on the variable frequency signal; an emission driver which supplies emission control signals to the emission control lines based on the emission control start signal; and a scan driver which supplies scan signals to the scan lines based on the scan start signal.
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公开(公告)号：US11183139B2
公开(公告)日：2021-11-23
申请号：US16899779
申请日：2020-06-12
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Won Tae Kim , Ji Hye Kim , Jae Hyeon Jeon
IPC: G09G5/00
Abstract: A display device includes: a first pixel connected to a first scan line and a data line; a second pixel connected to a second scan line and the data line; and a data driver connected to the data line. The data driver includes: a data voltage generator which applies a data voltage corresponding to a grayscale value of the first pixel to the data line when a scan signal of a turn-on level is applied to the first scan line; and an off voltage generator which applies an off voltage corresponding to a black grayscale value to the data line when a scan signal of a turn-on level is applied to the second scan line, in a first mode.
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