公开(公告)号：US20200167026A1

公开(公告)日：2020-05-28

申请号：US16514703

申请日：2019-07-17

Applicant: LG Display Co., Ltd.

Inventor： YoungJang LEE ,  JunHo LEE

IPC: G06F3/041 ,  G06K9/00 ,  G06F3/044

Abstract: The present disclosure relates to a sensing device and a display device including the sensing device. The sensing device includes a transducer including first and second driving electrodes and a piezoelectric material layer; first and second transmission transistors for alternatively supplying first and second driving voltages to the first driving electrode; and first and second reception transistors electrically connected between a readout line and a power supply line to which a power supply voltage is supplied. During an interval in which at least one pixel is driven, the first and second driving voltages are DC voltages with a voltage level different from each other, and the first and second transmission transistors repeat turn-on and turn-off at a timing different from each other. Through this, it is possible to reduce unnecessary power consumption, and therefore, a large area fingerprint sensor can be more efficiently implemented.

公开(公告)号：US20200167537A1

公开(公告)日：2020-05-28

申请号：US16514637

申请日：2019-07-17

Applicant: LG Display Co., Ltd.

Inventor： JunHo LEE

IPC: G06K9/00 ,  G06F21/32 ,  G06F3/044

Abstract: The present disclosure relates to a display device and a sensing method, and more specifically, to a complex sensing device, a display device and a sensing method comprising: a touch panel on which a plurality of touch electrodes is disposed, a fingerprint panel on which a plurality of pixels is disposed, a touch circuit sensing the touch panel and outputting first sensing data, a fingerprint circuit sensing a fingerprint sensing area of the fingerprint panel and outputting second sensing data, and a sensing controller setting the fingerprint sensing area for enabling the fingerprint circuit to sense the fingerprint panel based on the first sensing data of the touch circuit.

公开(公告)号：US20180005601A1

公开(公告)日：2018-01-04

申请号：US15634576

申请日：2017-06-27

Applicant: LG DISPLAY CO., LTD.

Inventor： KiTae KIM ,  SeungChan CHOI ,  JunHo LEE ,  SungBin RYU ,  Siu YOON

IPC: G09G5/10 ,  G09G3/3233 ,  G09G3/3266

CPC classification number: G09G5/10 ,  G09G3/3233 ,  G09G3/3266 ,  G09G2300/0819 ,  G09G2300/0852 ,  G09G2300/0861 ,  G09G2310/0251 ,  G09G2310/0262 ,  G09G2310/061 ,  G09G2320/0247 ,  G09G2320/043 ,  G09G2330/021

Abstract: Provided is an organic light emitting display. The organic light emitting display can include a gate driving circuit configured to supply a gate signal through each of a plurality of gate lines connected to a display panel, and a luminance control unit between the gate driving circuit and the display panel and electrically connected to the plurality of gate lines and a power supply line. A gate signal is supplied to the pixels in a distributed manner during a plurality of refresh periods. Therefore, it is possible to reduce a luminance decrease in the pixels during the entire refresh period.

公开(公告)号：US20180005575A1

公开(公告)日：2018-01-04

申请号：US15634736

申请日：2017-06-27

Applicant: LG DISPLAY CO., LTD.

Inventor： JunHo LEE ,  SeungChan CHOI ,  SungBin RYU ,  KiTae KIM ,  Siu YOON

IPC: G09G3/3233

CPC classification number: G09G3/3233 ,  G09G3/3225 ,  G09G2300/0852 ,  G09G2300/0861 ,  G09G2310/0262 ,  G09G2310/08 ,  G09G2320/0247 ,  G09G2320/045 ,  G09G2330/028 ,  G09G2360/16

Abstract: Provided is an organic light emitting display (OLED) device that can include a timing controller configured to generate control signals to be applied to a plurality of pixels, each pixel including a pixel driving circuit. An adjusted initialization voltage is input to a circuit driving circuit of the OLED device during an initialization period. Thus, a delay of a current flowing in an organic light emitting diode can be improved such that a flicker phenomenon can be suppressed or minimized.