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公开(公告)号:US11881179B2
公开(公告)日:2024-01-23
申请号:US17994616
申请日:2022-11-28
Applicant: LG Display Co., Ltd.
Inventor: Ri Yu , Myoungjae Kang , Bonghwan Kim , Unseon Lee
IPC: G09G3/3275 , G09G3/3266
CPC classification number: G09G3/3275 , G09G3/3266 , G09G2310/0289 , G09G2310/08 , G09G2320/041 , G09G2330/021 , G09G2330/04
Abstract: A display apparatus may include a first drive circuit configured to output a driving signal, the driving signal including a first period during which the driving signal has a first value, a second period during which the driving signal has a second value different from the first value, and a third period during which the driving signal has a third value between the first value and the second value; a second drive circuit configured to receive the driving signal and generate a gate signal based on the driving signal; and a display panel including a light emitting device that is configured to emit light based on the gate signal, wherein a length of at least one of the first period, the second period, or the third period is adjustable based on a temperature associated with the display apparatus.
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公开(公告)号:US11847971B2
公开(公告)日:2023-12-19
申请号:US17743147
申请日:2022-05-12
Applicant: LG Display Co., Ltd.
Inventor: Ri Yu , SangHyun Lim , Myoungjae Kang , Bonghwan Kim
IPC: G09G3/3258 , G09G3/3291
CPC classification number: G09G3/3258 , G09G3/3291 , G09G2310/027 , G09G2310/0291 , G09G2310/08
Abstract: Embodiments of the present disclosure relate to a display device, comprising: a display panel in which a plurality of driving voltage feedback lines branched from a driving voltage line for supplying a driving voltage to a plurality of subpixels are disposed; a driving circuit for supplying a data voltage to the plurality of subpixels and determining a deviation of a feedback driving voltage detected through the plurality of driving voltage feedback lines; and a timing controller for compensating for image data depending on positions at which the plurality of driving voltage feedback lines are branched in the display panel based on the deviation of the feedback driving voltage, and supplying a compensated image data to the driving circuit.
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公开(公告)号:US11783774B2
公开(公告)日:2023-10-10
申请号:US17948955
申请日:2022-09-20
Applicant: LG Display Co., Ltd.
Inventor: Won-Seok Song , Bonghwan Kim , Sunhwan Kim , Mirae Shin
IPC: G09G3/3233 , G09G3/20 , G09G3/3291
CPC classification number: G09G3/3233 , G09G3/2096 , G09G3/3291 , G09G2300/0819 , G09G2300/0842 , G09G2300/0861 , G09G2310/0297 , G09G2310/08 , G09G2320/0233 , G09G2320/0247 , G09G2330/021 , G09G2330/028
Abstract: A display device comprises: a display panel including a light emitting element, a driving transistor providing a driving current to the light emitting element using a high potential driving voltage and switching transistors controlling the driving transistor; a gate driving circuit supplying scan signals to the display panel; a data driving circuit generating a data voltage or a bias voltage using a feedback high potential driving voltage transmitted through a high potential driving voltage feedback line; and a timing controller controlling the gate driving circuit and the data driving circuit so that the data voltage is supplied to the display panel in a first period at a low speed mode which the display panel is driven at predetermined driving frequency less than a frequency of a high speed mode and the bias voltage is supplied to the display panel in a second period at a low speed mode.
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公开(公告)号:US11735123B2
公开(公告)日:2023-08-22
申请号:US17728676
申请日:2022-04-25
Applicant: LG Display Co., Ltd.
Inventor: Jaemin Kim , Subin Park , Bonghwan Kim , Won-Seok Song
IPC: G09G3/3291
CPC classification number: G09G3/3291 , G09G2300/0426 , G09G2300/0842 , G09G2310/08 , G09G2320/0247
Abstract: Embodiments of the present disclosure relate to a display device, comprising: a display panel including a light emitting element, a driving transistor configured to provide a driving current to the light emitting element, and a plurality of switching transistors configured to control an operation of the driving transistor; a gate driving circuit configured to supply a plurality of scan signals to the display panel; a data driving circuit configured to supply a plurality of data voltages to the display panel; and a timing controller configured to control the gate driving circuit and the data driving circuit, wherein a bias voltage is supplied to the driving transistor in a first period in which the data voltage is supplied to the display panel at a low speed mode which the display panel is driven at a low speed driving frequency.
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公开(公告)号:US20230143180A1
公开(公告)日:2023-05-11
申请号:US17948955
申请日:2022-09-20
Applicant: LG Display Co., Ltd.
Inventor: Won-Seok Song , Bonghwan Kim , Sunhwan Kim , Mirae Shin
IPC: G09G3/3233 , G09G3/20 , G09G3/3291
CPC classification number: G09G3/3233 , G09G3/2096 , G09G3/3291 , G09G3/2007 , G09G2300/0819 , G09G2300/0842 , G09G2310/08 , G09G2300/0861 , G09G2310/0297 , G09G2330/021
Abstract: A display device comprises: a display panel including a light emitting element, a driving transistor providing a driving current to the light emitting element using a high potential driving voltage and switching transistors controlling the driving transistor; a gate driving circuit supplying scan signals to the display panel; a data driving circuit generating a data voltage or a bias voltage using a feedback high potential driving voltage transmitted through a high potential driving voltage feedback line; and a timing controller controlling the gate driving circuit and the data driving circuit so that the data voltage is supplied to the display panel in a first period at a low speed mode which the display panel is driven at predetermined driving frequency less than a frequency of a high speed mode and the bias voltage is supplied to the display panel in a second period at a low speed mode.
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公开(公告)号:US10699655B2
公开(公告)日:2020-06-30
申请号:US15839533
申请日:2017-12-12
Applicant: LG DISPLAY CO., LTD.
Inventor: Bonghwan Kim , Wan Sik Lim
IPC: G09G3/36 , G09G3/3266 , G09G3/3233 , G09G3/02 , G09G3/20 , G09G3/34
Abstract: A display device, a display panel, a driving method, and a gate driver circuit. Threshold voltage sampling times of driving transistors are changed by varying pulse widths of gate clock signals depending on horizontal lines. Luminance uniformity of the display panel is improved, even in the case in which horizontal line-specific driving voltages have different voltage drops.
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