公开(公告)号：US09190169B2

公开(公告)日：2015-11-17

申请号：US13728320

申请日：2012-12-27

Applicant: LG DISPLAY CO., LTD.

Inventor： HwaDong Han ,  ChongHun Park ,  IlGi Jeong ,  JoonMin Park

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

CPC classification number: G11C19/28 ,  G09G3/3611 ,  G09G3/3677 ,  G09G2310/0286 ,  G09G2320/045

Abstract: A shift register of the present disclosure includes a plurality of stages. Each stage includes transistors belonging to a first group for activating a Q node, transistors belonging to a second group for discharging odd and even QB nodes, transistors belonging to a third group for being activated by the odd and even QB nodes and for discharging the Q node, and a sensing circuit for sensing a threshold voltage of at least one of the transistor belonging to the third group at a period when the Q node is discharged. The shift register of the present disclosure avoids the problem of erroneous operation due to lowering of device characteristics.

Abstract translation: 本公开的移位寄存器包括多个级。 每个级包括属于用于激活Q节点的第一组的晶体管，属于用于放电奇数和偶数QB节点的第二组的晶体管，属于第三组的晶体管，用于由奇数和偶数QB节点激活并用于放电Q 节点和感测电路，用于在Q节点被放电的时段期间感测属于第三组的晶体管中的至少一个的阈值电压。 本公开的移位寄存器避免了由于设备特性的降低而导致操作错误的问题。

公开(公告)号：US12039897B2

公开(公告)日：2024-07-16

申请号：US17410093

申请日：2021-08-24

Applicant: LG Display Co., Ltd.

Inventor： Geondo Park ,  ChangHoon Lee ,  HwaDong Han ,  Yeolhyeong Lee

IPC: G09F9/30 ,  H10K50/84 ,  H10K59/122 ,  H10K59/131 ,  H10K102/00 ,  H10K102/10

CPC classification number: G09F9/301 ,  H10K50/84 ,  H10K59/122 ,  H10K59/131 ,  H10K2102/102 ,  H10K2102/103 ,  H10K2102/311

Abstract: A display device includes a display panel having a display area and a non-display area and a polyimide substrate. The display device includes a transistor disposed above the substrate in the display area, a flexible film disposed on a side surface of the non-display area and connected to the substrate, and a conductive layer disposed below the substrate and applied with a low potential power voltage from the flexible film to improve an edge burn-in due to the polarization by offsetting positive charges in the polyimide substrate.

公开(公告)号：US20140091997A1

公开(公告)日：2014-04-03

申请号：US13728320

申请日：2012-12-27

Applicant: LG DISPLAY CO., LTD.

Inventor： HwaDong Han ,  ChongHun Park ,  IIGi Jeong ,  JoonMin Park

IPC: G11C19/28 ,  G09G3/36

CPC classification number: G11C19/28 ,  G09G3/3611 ,  G09G3/3677 ,  G09G2310/0286 ,  G09G2320/045

Abstract: The present disclosure relates to a shift register, and more particularly, a shift register having a sensing circuit for quantitatively measuring a threshold voltage shifted level of a thin film transistor, which is deteriorated due to a continuously applied direct-current (DC) voltage, in a shift register having thin film transistors using oxide silicon as an active layer.The present disclosure may provide a shift register capable of overcoming an erroneous operation caused due to lowering of device characteristics, by further connecting a sensing transistor to thin film transistors configuring the shift register formed on a display panel to sense a level of threshold voltage shift, and driving the shift register by dividing one frame into odd and even periods according to the sensing result.

Abstract translation: 本发明涉及一种移位寄存器，更具体地说，涉及一种具有感测电路的移位寄存器，该检测电路用于定量测量由连续施加的直流（DC）电压导致的薄膜晶体管的阈值电压偏移电平， 在具有使用氧化硅作为有源层的薄膜晶体管的移位寄存器中。 本公开可以提供一种能够克服由于设备特性降低而导致的错误操作的移位寄存器，通过进一步将感测晶体管连接到构成在显示面板上形成的移位寄存器的薄膜晶体管以感测阈值电压偏移的水平， 并根据感​​测结果将一帧划分成奇数和偶数周期来驱动移位寄存器。

公开(公告)号：US20220108635A1

公开(公告)日：2022-04-07

申请号：US17410093

申请日：2021-08-24

Applicant: LG Display Co., Ltd.

Inventor： Geondo Park ,  ChangHoon Lee ,  HwaDong Han ,  Yeolhyeong Lee

IPC: G09F9/30 ,  H01L51/52 ,  H01L27/32

Abstract: A display device includes a display panel having a display area and a non-display area and a polyimide substrate. The display device includes a transistor disposed above the substrate in the display area, a flexible film disposed on a side surface of the non-display area and connected to the substrate, and a conductive layer disposed below the substrate and applied with a low potential power voltage from the flexible film to improve an edge burn-in due to the polarization by offsetting positive charges in the polyimide substrate.

公开(公告)号：US09589992B2

公开(公告)日：2017-03-07

申请号：US14941064

申请日：2015-11-13

Applicant: LG DISPLAY CO., LTD.

Inventor： SoonJae Hwang ,  DuHwan Oh ,  HwaDong Han

IPC: H01L27/02 ,  H01L27/12

CPC classification number: H01L27/124 ,  H01L27/0288 ,  H01L27/0292 ,  H01L27/0296

Abstract: The present invention relates to a display panel including a static electricity preventing pattern and a display device having the same. An aspect of the present invention provides a display device or a display panel in which a dummy pattern having a pattern identical to or similar to a line of a signal area is positioned between the signal area and a non-signal area, in a pad including the signal area and the non-signal area.

Abstract translation: 本发明涉及一种包括静电防止图案的显示面板和具有该静电防止图案的显示装置。 本发明的一个方面提供了一种显示装置或显示面板，其中具有与信号区域的线相同或类似的图案的虚拟图案位于信号区域和非信号区域之间，包括： 信号区域和非信号区域。

公开(公告)号：US11476445B2

公开(公告)日：2022-10-18

申请号：US16935733

申请日：2020-07-22

Applicant: LG Display Co., Ltd.

Inventor： Geondo Park ,  HwaDong Han ,  Taekyun Kim ,  Jinwoo Lee

IPC: H01L51/52 ,  H01L27/32 ,  G02F1/133 ,  G09F9/30 ,  G06F1/16 ,  H01L51/00 ,  H01L33/38 ,  H01L29/786 ,  G02F1/1333 ,  H01L33/44

Abstract: A display device includes a substrate which includes a display area and a non-display area adjacent to the display area, a first planarization layer which is at least partially disposed in the display area, a second planarization layer which is disposed in the non-display area and is spaced apart from the first planarization layer, a contact unit disposed between the first planarization layer and the second planarization layer in the non-display area, and a cathode which extends from the display area to the non-display area to be electrically connected to the contact unit. Accordingly, the first planarization layer and the second planarization layer are spaced apart from each other so that a path through which moisture permeates into the display area through the second planarization layer may be blocked.

公开(公告)号：US09741747B2

公开(公告)日：2017-08-22

申请号：US15416896

申请日：2017-01-26

Applicant: LG DISPLAY CO., LTD.

Inventor： SoonJae Hwang ,  DuHwan Oh ,  HwaDong Han

IPC: H01L27/12 ,  H01L27/02

CPC classification number: H01L27/124 ,  H01L27/0288 ,  H01L27/0292 ,  H01L27/0296

Abstract: A display device comprising a display panel that includes an active area, the active area including a data line positioned on a substrate in a first direction and transferring a data signal, a gate line positioned on the substrate in a second direction and transferring a gate signal, a thin film transistor connected to the gate line and the data line, and a plurality of pixels driven by the thin film transistor, a first pad coupled to a first signal line disposed in a data signal area wherein the first signal line is connected to the data line, and a first non-signal line disposed in a first non-signal area wherein the first non-signal line is disconnected from the data line, the first non-signal area being disposed outside the data signal area, a second pad coupled to a second signal line disposed in a gate signal area wherein the second signal line is connected to the gate line, and a second non-signal line disposed in a second non-signal area wherein the second non-signal line is disconnected from the gate line, the second non-signal area being disposed outside the gate signal area; and a dummy pattern disposed between the data signal area and the first non-signal area, or disposed between the gate signal area and the second non-signal area.