公开(公告)号：US20190206328A1

公开(公告)日：2019-07-04

申请号：US16226532

申请日：2018-12-19

Applicant: LG DISPLAY CO., LTD.

Inventor： Jaehoon Park

IPC: G09G3/3258 ,  G09G3/3291 ,  G09G3/3266 ,  H01L27/32

Abstract: An organic light emitting diode (OLED) display device includes a display panel including a plurality of OLED pixels arranged in a matrix form to display an image, and the plurality of OLED pixels each includes a switching thin film transistor (TFT) to switch a data voltage pass supplied from a data line in response to a scan signal input through a gate line, a driving TFT turned on in accordance with a magnitude of a data voltage supplied from the switching TFT to control an amount of light emitted from an OLED, and a variable storage capacitor connected in parallel to a gate electrode of the driving TFT and having a capacitance varying in accordance with a magnitude of a voltage applied to the gate electrode of the driving TFT may increase a charging speed and a charging rate of a data voltage of the OLED pixel. As a result, it is possible to improve threshold voltage compensation efficiency and solve a problem such as non-uniform luminance and an afterimage.

公开(公告)号：US10186180B2

公开(公告)日：2019-01-22

申请号：US15232544

申请日：2016-08-09

Applicant: LG DISPLAY CO., LTD.

Inventor： Jaehoon Park ,  Jinho Lim ,  Cheolhwan Lee ,  Kyunghyun Jeon

IPC: G09G3/36 ,  G09G3/00 ,  G09G3/3266 ,  G09G3/20

Abstract: A display device includes a display panel including a first and a second non-display area, a main active area, and a sub active area, wherein the active areas each include a matrix of sub-pixels; a data driver in the first non-display area to provide image data to the matrices of sub-pixels; a main gate driver in the second non-display area to provide a corresponding gate signal to each sub-pixel in the main active area; a sub gate driver in the second non-display area to provide a corresponding gate signal to each sub-pixel in the sub active area; an auto-probe test pad in the non-display area for transmitting a first start signal received from an auto-probe signal generating device to one of the main gate driver and the sub gate driver while testing the display panel; and a signal transmission circuit connecting the main gate driver and the sub gate driver.

公开(公告)号：US10903246B2

公开(公告)日：2021-01-26

申请号：US14629538

申请日：2015-02-24

Applicant: LG Display Co., Ltd.

Inventor： Youngjang Lee ,  Kyungmo Son ,  Seongpil Cho ,  Jaehoon Park ,  Sohyung Lee ,  Sangsoon Noh ,  Moonho Park ,  Sungjin Lee ,  Seunghyo Ko ,  Mijin Jeong

IPC: H01L27/12 ,  H01L29/786 ,  H01L27/32

Abstract: Provided are a thin film transistor substrate and a display using the same. A display includes: a first area, a second area, a first thin film transistor disposed at the first area, the first thin film transistor including: a polycrystalline semiconductor layer, a first gate electrode on the polycrystalline semiconductor layer, a first source electrode, and a first drain electrode, a second thin film transistor disposed at the second area, the second thin film transistor including: a second gate electrode, an oxide semiconductor layer on the second gate electrode, a second source electrode, and a second drain electrode, a nitride layer on an area of the display device, other than the second area, the nitride layer covering the first gate electrode, and an oxide layer disposed over the first gate electrode and the second gate electrode.

公开(公告)号：US10437386B2

公开(公告)日：2019-10-08

申请号：US15246163

申请日：2016-08-24

Applicant: LG DISPLAY CO., LTD.

Inventor： Kyunghyun Jeon ,  Jaehoon Park ,  Jinho Lim ,  Cheolhwan Lee

IPC: G06F3/041 ,  G06F3/044 ,  G09G3/00 ,  G09G3/36

Abstract: A display panel having a touch sensor includes a pixel array, touch sensor blocks, a touch inspection pad unit, and an image inspection pad unit. In the pixel array, a plurality of pixels is disposed in a matrix form. The touch sensor blocks are connected to respective pluralities of the pixels in the pixel array. The touch inspection pad unit divides the touch sensor blocks into odd-numbered touch sensor blocks and even-numbered touch sensor blocks and a first touch inspection pad is coupled to the odd-numbered touch sensor blocks, while a second touch inspection pad is coupled to the odd-numbered touch sensor blocks. The image inspection pad part is commonly coupled to the odd-numbered touch sensor blocks and the even-numbered touch sensor blocks.

公开(公告)号：US10825390B2

公开(公告)日：2020-11-03

申请号：US16226569

申请日：2018-12-19

Applicant: LG DISPLAY CO., LTD.

Inventor： Jaehoon Park

IPC: G09G3/3233 ,  G09G3/3291 ,  G09G3/3266 ,  H01L27/32 ,  H01L29/786

Abstract: A display panel including a drive circuit and an image display device using the same are disclosed. The display panel provided with a drive circuit includes a substrate, a plurality of clock lines and a link line, a plurality of switching elements, a plurality of insulation layers, and an image display surface. The clock lines and link line are formed in a link line unit on the substrate. The switching elements are formed in a gate drive circuit region on the substrate. The insulation layers include the plurality of clock lines, the link line, and the plurality of switching elements. The image display surface includes a plurality of sub-pixels formed over the entire surface of the plurality of insulation layers such that an image is displayed thereon.

公开(公告)号：US10783828B2

公开(公告)日：2020-09-22

申请号：US16226532

申请日：2018-12-19

Applicant: LG DISPLAY CO., LTD.

Inventor： Jaehoon Park

IPC: G09G3/3258 ,  G09G3/3291 ,  G09G3/3266 ,  H01L27/32

Abstract: An organic light emitting diode (OLED) display device includes a display panel including a plurality of OLED pixels arranged in a matrix form to display an image, and the plurality of OLED pixels each includes a switching thin film transistor (TFT) to switch a data voltage pass supplied from a data line in response to a scan signal input through a gate line, a driving TFT turned on in accordance with a magnitude of a data voltage supplied from the switching TFT to control an amount of light emitted from an OLED, and a variable storage capacitor connected in parallel to a gate electrode of the driving TFT and having a capacitance varying in accordance with a magnitude of a voltage applied to the gate electrode of the driving TFT may increase a charging speed and a charging rate of a data voltage of the OLED pixel. As a result, it is possible to improve threshold voltage compensation efficiency and solve a problem such as non-uniform luminance and an afterimage.

公开(公告)号：US20190213952A1

公开(公告)日：2019-07-11

申请号：US16226569

申请日：2018-12-19

Applicant: LG DISPLAY CO., LTD.

Inventor： Jaehoon Park

IPC: G09G3/3233 ,  G09G3/3291 ,  G09G3/3266 ,  H01L27/32

Abstract: A display panel including a drive circuit and an image display device using the same are disclosed. The display panel provided with a drive circuit includes a substrate, a plurality of clock lines and a link line, a plurality of switching elements, a plurality of insulation layers, and an image display surface. The clock lines and link line are formed in a link line unit on the substrate. The switching elements are formed in a gate drive circuit region on the substrate. The insulation layers include the plurality of clock lines, the link line, and the plurality of switching elements. The image display surface includes a plurality of sub-pixels formed over the entire surface of the plurality of insulation layers such that an image is displayed thereon.

公开(公告)号：US10186528B2

公开(公告)日：2019-01-22

申请号：US14628357

申请日：2015-02-23

Applicant: LG Display Co., Ltd.

Inventor： Youngjang Lee ,  Kyungmo Son ,  Seongpil Cho ,  Jaehoon Park ,  Sohyung Lee ,  Sangsoon Noh ,  Moonho Park ,  Sungjin Lee ,  Seunghyo Ko ,  Mijin Jeong

IPC: H01L27/12 ,  H01L29/786 ,  H01L27/32

Abstract: Provided are a thin film transistor substrate and a display using the same. A thin film transistor substrate includes: a substrate, a first thin film transistor disposed at a first area of the substrate, the first thin film transistor including: a polycrystalline semiconductor layer, a first gate electrode on the polycrystalline semiconductor layer, a first source electrode, and a first drain electrode, a second thin film transistor disposed at a second area of the substrate, the second thin film transistor including: a second gate electrode, an oxide semiconductor layer on the second gate electrode, a second source electrode, and a second drain electrode, a nitride layer disposed on an area of the substrate, other than the second area, the nitride layer covering the first gate electrode, and an oxide layer disposed: over the first gate electrode and the second gate electrode, and under the oxide semiconductor layer.

公开(公告)号：US09691343B2

公开(公告)日：2017-06-27

申请号：US15235101

申请日：2016-08-12

Applicant: LG Display Co., Ltd.

Inventor： Jinho Lim ,  Jaehoon Park ,  Haksu Kim ,  Cheolhwan Lee ,  Kyunghyun Jeon

IPC: G09G3/36 ,  G09G3/3275 ,  G02F1/1368 ,  G02F1/1362 ,  G02F1/133 ,  G02F1/1333 ,  G02F1/1343 ,  G06F3/041 ,  G06F3/044

CPC classification number: G09G3/3688 ,  G02F1/13306 ,  G02F1/133345 ,  G02F1/13338 ,  G02F1/134309 ,  G02F1/13439 ,  G02F1/1345 ,  G02F1/13454 ,  G02F1/136286 ,  G02F1/1368 ,  G02F2001/13629 ,  G02F2201/121 ,  G02F2201/123 ,  G06F3/0412 ,  G06F3/0416 ,  G06F3/044 ,  G09G3/3275 ,  G09G2300/0426 ,  G09G2310/0297 ,  G09G2310/08 ,  G09G2320/0276

Abstract: A disclosed display device comprises a data line of a display panel, a first switching circuit of the display panel, the first switching circuit including an input and a transistor to pass a test voltage from the input of the first switching circuit to a transistor electrode of the transistor, and a bridge pattern of the display panel, the bridge pattern electrically connecting the transistor electrode to the data line, the bridge pattern being in a different layer of the display panel than the transistor electrode.