公开(公告)号：US20250008771A1

公开(公告)日：2025-01-02

申请号：US18751974

申请日：2024-06-24

Applicant: LG Display Co., Ltd.

Inventor： Hyunguk Jang ,  EuiHyun Chung ,  JoungMi Choi

IPC: H10K59/121 ,  H10K59/126 ,  H10K59/131

Abstract: A display device according to one or more examples may include a substrate, a display area with a first display area and a second display area, a non-display area, a base circuit layer located on the substrate and including a gate-in-panel circuit and a subpixel circuit array disposed in the display area, and a light emitting device layer located on the base circuit layer and including two or more first light emitting devices disposed in the first display area and two or more second light emitting devices disposed in the second display area. The subpixel circuit array may include one first subpixel circuit configured to simultaneously drive the two or more first light emitting devices, and disposed in the second display area, and two or more second subpixel circuits configured to respectively drive the two or more second light emitting devices, and disposed in the second display area.

公开(公告)号：US10553147B2

公开(公告)日：2020-02-04

申请号：US15718804

申请日：2017-09-28

Applicant: LG DISPLAY CO., LTD.

Inventor： Hyunguk Jang ,  Seungho Heo

IPC: G11C19/00 ,  G09G3/20 ,  G11C19/28 ,  G09G3/36

Abstract: A display device comprises a pixel array, a timing controller, a Q node control signal input line, and a shift register. In the pixel array, data lines and gate lines are defined, and pixels are arranged in a matrix. The timing controller outputs a start signal and a first reset signal. The Q node control signal input line receives the start signal and the first reset signal. The shift register comprises a plurality of stages connected as a cascade, and sequentially supplies dummy gate pulses or gate pulses applied to the gate lines.

公开(公告)号：US20240268178A1

公开(公告)日：2024-08-08

申请号：US18456292

申请日：2023-08-25

Applicant: LG Display Co., Ltd.

Inventor： Sungwoo Jun ,  Hyunguk Jang ,  JiAh Kim

IPC: H10K59/38 ,  H10K59/122 ,  H10K59/40 ,  H10K59/65 ,  H10K59/80

CPC classification number: H10K59/38 ,  H10K59/122 ,  H10K59/40 ,  H10K59/65 ,  H10K59/873 ,  H10K59/8792

Abstract: A display device and a display panel are disclosed that includes: a substrate including a display area including an optical area configured to display an image and allow light to be transmitted through the optical area and a normal area located outside of the optical area and configured to display the image; a first light emitting element in the optical area; a first color filter in the optical area and overlapping the light emitting element; and a first light shield in the optical area and overlapping the first light emitting element.

公开(公告)号：US20240138219A1

公开(公告)日：2024-04-25

申请号：US18235092

申请日：2023-08-16

Applicant: LG DISPLAY CO., LTD.

Inventor： Sungwoo JUN ,  Hyunguk Jang

IPC: H10K59/131 ,  H10K59/80

CPC classification number: H10K59/1315 ,  H10K59/80516

Abstract: The present disclosure provides a display device including: a first optical area included in a display area in which one or more images can be displayed and allowing light to be transmitted; a normal area included in the display area and located outside of the first optical area; a first optical bezel area included in the display area and located between the first optical area and the normal area; a first anode electrode of a first light emitting element disposed in the first optical area; a first pixel circuit disposed in the first optical bezel area; a first anode extension line electrically interconnecting the first anode electrode and the first pixel circuit; and at least one first compensation line connected in parallel with at least a portion of the first anode extension line.

公开(公告)号：US10268285B2

公开(公告)日：2019-04-23

申请号：US15249113

申请日：2016-08-26

Applicant: LG Display Co., Ltd.

Inventor： Doyoung Jung ,  Hyunguk Jang ,  Sungchul Kim ,  Sanghyuck Bae ,  Sungsu Han ,  Suyun Ju

IPC: G06F3/0354 ,  G06F3/041 ,  G06F3/0487 ,  G06F3/044

Abstract: An active stylus pen generates a pen driving signal synchronized with a touchscreen driving signal received from a touchscreen and outputs the pen driving signal to the touchscreen. The active stylus pen includes a pressure sensing unit for sensing pressure when touching the touchscreen to generate writing pressure information and a signal processor for modulating the pen driving signal in response to the signal level of the writing pressure information and outputs the modulated signal as a pen driving signal in which the writing pressure information has been reflected.

公开(公告)号：US10203782B2

公开(公告)日：2019-02-12

申请号：US15215769

申请日：2016-07-21

Applicant: LG Display Co., Ltd.

Inventor： Doyoung Jung ,  Hyunguk Jang ,  Sungchul Kim ,  Sanghyuck Bae ,  Sungsu Han ,  Suyun Ju

IPC: G06F3/045 ,  G06F3/038 ,  G06F3/044 ,  G06F3/0354

Abstract: A touch sensing system comprises a touchscreen with a plurality of touch electrodes, to which a touchscreen driving signal is applied, and a stylus pen that generates a pen driving signal based on the touchscreen driving signal and sends the same to the touchscreen. The stylus pen comprises: an amplifier that amplifies the touchscreen driving signal to generate an amplified signal; a comparator that compares the amplified signal with a preset reference voltage to generate a comparator output signal; and a signal processor that measures the pulse width of the comparator output signal, adjusts an amount of delay based on a measurement, and determines an output timing of the pen driving signal based on an adjusted amount of delay to synchronize the pen driving signal with the touchscreen driving signal.

公开(公告)号：US09595219B2

公开(公告)日：2017-03-14

申请号：US14733271

申请日：2015-06-08

Applicant: LG DISPLAY CO., LTD.

Inventor： Dahye Shim ,  Joungmi Choi ,  Hyunguk Jang

IPC: G09G3/20

CPC classification number: G09G3/2092 ,  G09G2310/0267 ,  G09G2310/0286 ,  G09G2310/0289 ,  G09G2320/041 ,  G09G2330/021

Abstract: A scan driver and display device using the same are disclosed. The display device includes display panel, a data driver configured to supply a data signal to the display panel, and a scan driver formed in a non-display area of the display panel, including a shift register composed of a plurality of stages and a level shifter formed outside the display panel, and configured to supply a scan signal to the display panel using the shift register and the level shifter. The scan driver comprises: a sensor circuit unit configured to sense internal and external environmental conditions and generate a compensation circuit control signal on the basis of a sensed result; and a compensation circuit unit generating a compensation signal to compensate outputs of the plurality of stages in response to the compensation circuit control signal.

Abstract translation: 公开了一种使用其的扫描驱动器和显示装置。 显示装置包括显示面板，被配置为向显示面板提供数据信号的数据驱动器，以及形成在显示面板的非显示区域中的扫描驱动器，包括由多个级和级别构成的移位寄存器 移位器形成在显示面板外部，并且被配置为使用移位寄存器和电平移位器向显示面板提供扫描信号。 扫描驱动器包括：传感器电路单元，被配置为感测内部和外部环境条件，并且基于感测结果产生补偿电路控制信号; 以及补偿电路单元，其响应于所述补偿电路控制信号产生补偿信号以补偿所述多个级的输出。

公开(公告)号：US20240237450A9

公开(公告)日：2024-07-11

申请号：US18235092

申请日：2023-08-17

Applicant: LG DISPLAY CO., LTD.

Inventor： Sungwoo JUN ,  Hyunguk Jang

IPC: H10K59/131 ,  H10K59/80

CPC classification number: H10K59/1315 ,  H10K59/80516

Abstract: The present disclosure provides a display device including: a first optical area included in a display area in which one or more images can be displayed and allowing light to be transmitted; a normal area included in the display area and located outside of the first optical area; a first optical bezel area included in the display area and located between the first optical area and the normal area; a first anode electrode of a first light emitting element disposed in the first optical area; a first pixel circuit disposed in the first optical bezel area; a first anode extension line electrically interconnecting the first anode electrode and the first pixel circuit; and at least one first compensation line connected in parallel with at least a portion of the first anode extension line.

公开(公告)号：US11195472B2

公开(公告)日：2021-12-07

申请号：US17091810

申请日：2020-11-06

Applicant: LG Display Co., Ltd.

Inventor： Youngsung Cho ,  Byeongseong So ,  Hyunguk Jang

IPC: G09G3/3233 ,  G09G3/3266

Abstract: A display device includes a display panel, a data driving circuit, a gate driving circuit, and a timing controller, each pixel of the display panel includes a light-emitting diode, a driving transistor, second to sixth switching transistors, and a storage capacitor, and at a sensing step at which the light-emitting diode does not emit light, a conduction path that is connected through the sixth switching transistor, the driving transistor, the second switching transistor, and the third switching transistor is formed, and an electrical signal reflecting a threshold voltage of one of the second to fourth switching transistors is transferred to a data line through the conduction path.

公开(公告)号：US09711088B2

公开(公告)日：2017-07-18

申请号：US14817668

申请日：2015-08-04

Applicant: LG DISPLAY CO., LTD.

Inventor： Sehwan Na ,  Joungmi Choi ,  Dahye Shim ,  Daegyu Jo ,  Sohyun Kim ,  Hyunguk Jang

IPC: G09G3/36 ,  G09G3/3258 ,  G09G3/3266 ,  G11C19/28 ,  G09G3/3233

CPC classification number: G09G3/3258 ,  G09G3/3233 ,  G09G3/3266 ,  G09G3/3677 ,  G09G2300/0426 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/0286 ,  G09G2310/08 ,  G09G2320/041 ,  G09G2330/04 ,  G11C19/28

Abstract: A display device includes a display panel and a scan driver including transistors formed in a non-display area of the display panel. A compensation voltage is supplied to the scan driver through a compensation gate electrode included in at least one transistor of the scan driver. Namely, the at least one transistor includes a gate electrode, to which a signal or a voltage for activating a channel is supplied, and the compensation gate electrode, to which the compensation voltage for recovering a threshold voltage is supplied.