公开(公告)号：US10916218B2

公开(公告)日：2021-02-09

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 ,  G09G3/3266 ,  G09G3/3233

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：US20180158418A1

公开(公告)日：2018-06-07

申请号：US15833793

申请日：2017-12-06

Applicant: LG Display Co., Ltd.

Inventor： SungBin Ryu ,  JunHo Lee ,  YoungJang Lee

IPC: G09G3/3266 ,  H01L27/32 ,  G09G3/3275

CPC classification number: G09G3/3266 ,  G09G3/3225 ,  G09G3/3275 ,  G09G2310/061 ,  G09G2310/08 ,  G09G2320/0257 ,  G09G2320/0606 ,  G09G2320/08 ,  G09G2340/0435 ,  G09G2354/00 ,  H01L27/3276

Abstract: An organic light emitting display device and a driving method thereof are provided. The organic light emitting display device comprising a display panel including a plurality of pixels, each pixel including an organic light emitting element, a data driver supplying a data signal to the organic light emitting element through a data line, a gate driver supplying a gate signal to the organic light emitting element through a gate line, and a timing controller controlling an operation timing of the data driver and an operation timing of the gate driver, and generating a conversion control signal controlling a conversion timing of a refresh rate of the display panel in response to an external input signal of the display panel.

公开(公告)号：US11929026B2

公开(公告)日：2024-03-12

申请号：US17986614

申请日：2022-11-14

Applicant: LG Display Co., Ltd.

Inventor： SungBin Ryu ,  JaeYong You

IPC: G09G3/32 ,  G09G3/3233

CPC classification number: G09G3/3233 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/0294 ,  G09G2310/08

Abstract: A display device can include a light emitting element, and a pixel driving circuit connected to the light emitting element and configured to include first to fourth nodes. The pixel driving circuit can include a driving transistor connected to the first to third nodes, a plurality of switching transistors, and a storage capacitor. Among the plurality of switching transistors, the switching transistor connected to a source node of the driving transistor is controlled by a second scan signal, and is configured to apply a data voltage to the source node of the driving transistor. The second scan signal can be applied one or more times during one frame.

公开(公告)号：US10565936B2

公开(公告)日：2020-02-18

申请号：US15833793

申请日：2017-12-06

Applicant: LG Display Co., Ltd.

Inventor： SungBin Ryu ,  JunHo Lee ,  YoungJang Lee

IPC: G09G3/3266 ,  H01L27/32 ,  G09G3/3275

Abstract: An organic light emitting display device and a driving method thereof are provided. The organic light emitting display device comprising a display panel including a plurality of pixels, each pixel including an organic light emitting element, a data driver supplying a data signal to the organic light emitting element through a data line, a gate driver supplying a gate signal to the organic light emitting element through a gate line, and a timing controller controlling an operation timing of the data driver and an operation timing of the gate driver, and generating a conversion control signal controlling a conversion timing of a refresh rate of the display panel in response to an external input signal of the display panel.

公开(公告)号：US12087233B2

公开(公告)日：2024-09-10

申请号：US18472646

申请日：2023-09-22

Applicant: LG Display Co., Ltd.

Inventor： JaeYong You ,  SungBin Ryu

IPC: G09G3/3266 ,  G09G3/32

CPC classification number: G09G3/3266 ,  G09G3/32 ,  G09G2300/0842 ,  G09G2310/0267 ,  G09G2320/0247 ,  G09G2330/021

Abstract: The disclosure relates to display devices. A display device comprises a display panel including a display area and a non-display area formed outside the display area and having a plurality of pixels and a gate driving unit including a scan driving unit for supplying a scan signal to the display panel and an emission control driving unit for supplying an emission control signal. The plurality of pixels include a light emitting element for emitting light in a brightness corresponding to a current amount of a driving current applied, a driving transistor for controlling the current amount applied to the light emitting element, a storage capacitor connected to the driving transistor, and a first transistor and a second transistor including an oxide semiconductor layer and configured to be simultaneously turned on according to the scan signal.

公开(公告)号：US20240112637A1

公开(公告)日：2024-04-04

申请号：US18472646

申请日：2023-09-22

Applicant: LG Display Co., Ltd.

Inventor： JaeYong You ,  SungBin Ryu

IPC: G09G3/3266 ,  G09G3/32

CPC classification number: G09G3/3266 ,  G09G3/32 ,  G09G2300/0842 ,  G09G2310/0267 ,  G09G2320/0247 ,  G09G2330/021

Abstract: The disclosure relates to display devices. A display device comprises a display panel including a display area and a non-display area formed outside the display area and having a plurality of pixels and a gate driving unit including a scan driving unit for supplying a scan signal to the display panel and an emission control driving unit for supplying an emission control signal. The plurality of pixels include a light emitting element for emitting light in a brightness corresponding to a current amount of a driving current applied, a driving transistor for controlling the current amount applied to the light emitting element, a storage capacitor connected to the driving transistor, and a first transistor and a second transistor including an oxide semiconductor layer and configured to be simultaneously turned on according to the scan signal.

公开(公告)号：US10388219B2

公开(公告)日：2019-08-20

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: G09G3/3225 ,  G09G3/3233

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.