公开(公告)号：US11195473B2

公开(公告)日：2021-12-07

申请号：US16886366

申请日：2020-05-28

Applicant: LG Display Co., Ltd.

Inventor： Jae Kwon Chae

IPC: G09G3/3275 ,  G09G3/3225

Abstract: Disclosed are a display device using an inverted signal and a driving method thereof. The display device includes a display panel driving circuit for writing data to pixels, a signal generation unit configured to generate a two-step signal for controlling the display panel driving circuit; a plurality of signal lines configured to connect the display panel driving circuit to the signal generation unit; and a signal inversion circuit configured to receive a two-step signal from the signal generation unit, invert the two-step signal, and supply three-step signals each including a positive polarity voltage, a reference level voltage, and a negative polarity voltage to the signal lines.

公开(公告)号：US12211410B2

公开(公告)日：2025-01-28

申请号：US18384535

申请日：2023-10-27

Applicant: LG Display Co., Ltd.

Inventor： Sang Uk Lee ,  Jae Kwon Chae

IPC: G09G3/00

Abstract: A level shifter according to an embodiment and a display device using the same are discussed. The level shifter includes a driving signal generation circuit configured to output driving signals through signal lines, and a pseudo signal generation circuit configured to generate phase-inverted pseudo signals of the driving signals. The pseudo signal generation circuit can raise or lower a voltage level of the pseudo signals by a variation magnitude adjusted according to the driving signals whenever a section with the driving signals overlapping on a time axis occurs.

公开(公告)号：US11315478B2

公开(公告)日：2022-04-26

申请号：US17121342

申请日：2020-12-14

Applicant: LG Display Co., Ltd.

Inventor： Jun Su Kim ,  Jae Kwon Chae

IPC: G09G3/20 ,  G09G3/3225 ,  H01Q1/38 ,  H01Q1/22 ,  H01Q1/36 ,  H01Q1/44 ,  H01Q9/04 ,  G09G3/00

Abstract: A display device according to an embodiment of the present disclosure includes a display panel configured to display an image using a plurality of pixels, a timing controller configured to generate an embedded clock point-to-point interface (EPI) data signal according to an EPI protocol, a display panel driver configured to write pixel data of an input image onto the plurality of pixels based on the EPI data signal, a wireless signal detection unit configured to detect an electromagnetic wave signal surrounding the display device and convert the detected electromagnetic wave signal into an electric signal, and a detection signal output unit configured to compare the electric signal with a reference signal and output a detection signal according to a comparison result, wherein the timing controller converts a preset signal characteristic of the EPI data signal according to the detection signal and outputs the EPI data signal.