公开(公告)号：US11830447B2

公开(公告)日：2023-11-28

申请号：US17550343

申请日：2021-12-14

申请人： LX SEMICON CO., LTD.

发明人： Do Hoon Lee ,  Hyun Kyu Jeon ,  Ji Won Lee ,  Chan Yung Kim

IPC分类号： G09G3/34 ,  G09G3/36

CPC分类号： G09G3/3426 ,  G09G3/3607 ,  G09G3/3648 ,  G09G2320/0242 ,  G09G2320/0646 ,  G09G2360/16

摘要： The present disclosure relates to a liquid crystal display drive device and a method of driving the same. An image processor of a liquid crystal display device may generate second pixel data by applying a first gain, determined according to a brightness level of each LED element, to first pixel data of each subpixel, may calculate a second gain by using a differential value obtained by differentiating the brightness level of each LED element for a location of each subpixel, and a weight and a compensation coefficient determined according to the brightness level of each LED element, generate third pixel data by applying the second gain to the second pixel data, and output the third pixel data.

公开(公告)号：US20230379458A1

公开(公告)日：2023-11-23

申请号：US18364269

申请日：2023-08-02

申请人： LX SEMICON CO., LTD.

发明人： Hyun Suk Ko ,  Sung Chang Lim ,  Jung Won Kang ,  Dong San Jun ,  Seung Hyun Cho ,  Jin Ho Lee ,  Ha Hyun Lee ,  Hui Yong Kim ,  Jin Soo Choi

IPC分类号： H04N19/11 ,  H04N19/159 ,  H04N19/176 ,  H04N19/46 ,  H04N19/119

CPC分类号： H04N19/11 ,  H04N19/159 ,  H04N19/176 ,  H04N19/46 ,  H04N19/119

摘要： The present invention relates to an image encoding/decoding method and apparatus. The image decoding method according to the present invention may comprise constructing N MPM lists for a current block, wherein N is equal to or greater than 1, deriving an intra prediction mode of the current block based on the N MPM lists, and performing intra prediction for the current block based on the intra prediction mode.

公开(公告)号：US20230370616A1

公开(公告)日：2023-11-16

申请号：US18226459

申请日：2023-07-26

申请人： LX SEMICON CO., LTD.

发明人： Sung Chang LIM ,  Hyun Suk KO ,  Jung Won KANG ,  Jin Ho Lee ,  HA Hyun LEE ,  Dong San Jun ,  Hui Yong KIM

IPC分类号： H04N19/159 ,  H04N19/132 ,  H04N19/105 ,  H04N19/176

CPC分类号： H04N19/159 ,  H04N19/132 ,  H04N19/105 ,  H04N19/176

摘要： An image encoding/decoding method and apparatus for performing intra prediction mode based intra prediction are provided. An image decoding method may comprise decoding an intra prediction mode of a current block, deriving at least one intra prediction mode from the decoded intra prediction mode of the current block, generating two or more intra prediction blocks using the intra prediction mode of the current block and the derived intra prediction mode, and generating an intra prediction block of the current block based on the two or more intra prediction blocks.

公开(公告)号：US20230370588A1

公开(公告)日：2023-11-16

申请号：US18360599

申请日：2023-07-27

申请人： LX SEMICON CO., LTD.

发明人： Hyun Suk KO ,  Jin Ho LEE ,  Sung Chang LIM ,  Jung Won KANG ,  Ha Hyun LEE ,  Dong San JUN ,  Seung Hyun CHO ,  Hui Yong KIM ,  Jin Soo CHOI

IPC分类号： H04N19/11 ,  H04N19/176 ,  H04N19/159 ,  H04N19/105 ,  H04N19/593 ,  H04N19/184 ,  H04N19/96

CPC分类号： H04N19/11 ,  H04N19/176 ,  H04N19/159 ,  H04N19/105 ,  H04N19/593 ,  H04N19/184 ,  H04N19/96

摘要： The present invention relates to an intra prediction method and apparatus. The image decoding method according to the present invention may comprise decoding information on intra prediction; and generating a prediction block by performing intra prediction for a current block based on the information on intra prediction. The information on intra prediction may include information on an intra prediction mode, and the intra prediction mode may include a curved intra prediction mode.

公开(公告)号：US20230370581A1

公开(公告)日：2023-11-16

申请号：US18225203

申请日：2023-07-24

申请人： LX Semicon Co., Ltd.

发明人： Jin Ho LEE ,  Hyun Suk KO ,  Jung Won KANG ,  Sung Chang LIM ,  Ha Hyun LEE ,  Dong San JUN ,  Seung Hyun CHO ,  Hui Yong KIM ,  Jin Soo CHOI

IPC分类号： H04N19/105 ,  H04N19/176 ,  H04N19/11 ,  H04N19/119 ,  H04N19/186 ,  H04N19/80 ,  H04N19/91 ,  H04N19/593 ,  H04N19/117 ,  H04N19/51 ,  H04N19/159 ,  H04N19/70 ,  H04N19/96 ,  H04N19/172

CPC分类号： H04N19/105 ,  H04N19/176 ,  H04N19/11 ,  H04N19/119 ,  H04N19/186 ,  H04N19/80 ,  H04N19/91 ,  H04N19/593 ,  H04N19/117 ,  H04N19/51 ,  H04N19/159 ,  H04N19/70 ,  H04N19/96 ,  H04N19/172

摘要： An image encoding/decoding method and apparatus for predicting a second color component block using a first color component block are provided. An image decoding method of the present invention comprises deriving a prediction parameter using the first color component block, and predicting the second color component block using the derived prediction parameter.

公开(公告)号：US20230352473A1

公开(公告)日：2023-11-02

申请号：US18220499

申请日：2023-07-11

申请人： LX SEMICON CO., LTD.

发明人： Min Cheol KONG

IPC分类号： H01L27/02 ,  H02H9/04

CPC分类号： H01L27/0285 ,  H02H9/046

摘要： An electrostatic discharge (ESD) protection circuit includes a plurality of transistors each including a gate terminal, a drain terminal, and a source terminal, a first connection line connected to the drain terminals of the plurality of transistors, a second connection line connected to the source terminals of the plurality of transistors, a third connection line connected to the gate terminals of the plurality of transistors, an external resistor connected to the third connection line, and a ground terminal connected to the external resistor. The external resistor includes a first resistor and a second resistor connected to each other in parallel.

公开(公告)号：US11797125B2

公开(公告)日：2023-10-24

申请号：US17747085

申请日：2022-05-18

申请人： LX SEMICON CO., LTD.

发明人： Kwang Jun Lee ,  Woong Jin Oh ,  Yong Min Kim ,  Jae Woo Jeon

IPC分类号： G06F3/041 ,  G06F3/044

CPC分类号： G06F3/04166 ,  G06F3/044

摘要： Provided is a driving apparatus for the touch display device including: a signal generation circuit that generates a second image signal using an input first image signal and outputs the second image signal in a display period, and generates a common voltage signal and outputs the common voltage signal in a touch sensing period; and a dummy signal output determination circuit that determines whether to output a dummy signal using the second image signal, wherein when it is determined to output the dummy signal by the dummy signal output determination circuit, the signal generation circuit generates at least one dummy signal using the second image signal and the common voltage signal and outputs the at least one dummy signal in the display period.

公开(公告)号：US20230328258A1

公开(公告)日：2023-10-12

申请号：US18208960

申请日：2023-06-13

申请人： LX Semicon Co., Ltd.

发明人： Dong San JUN ,  Ha Hyun LEE ,  Jung Won KANG ,  Hyun Suk KO ,  Sung Chang LIM ,  Jin Ho LEE ,  Seung Hyun CHO ,  Hui Yong KIM ,  Jin Soo CHOI

IPC分类号： H04N19/159 ,  H04N19/513 ,  H04N19/463 ,  H04N19/105 ,  H04N19/13 ,  H04N19/126 ,  H04N19/176 ,  H04N19/593

CPC分类号： H04N19/159 ,  H04N19/513 ,  H04N19/463 ,  H04N19/105 ,  H04N19/96 ,  H04N19/126 ,  H04N19/176 ,  H04N19/593 ,  H04N19/13

摘要： The present invention relates to a method for encoding/decoding a video. To this end, the method for decoding a video may include: deriving a spatial merge candidate from at least one of spatial candidate blocks of a current block, deriving a temporal merge candidate from a co-located block of the current block, and generating a prediction block of the current block based on at least one of the derived spatial merge candidate and the derived temporal merge candidate, wherein a reference picture for the temporal merge candidate is selected based on a reference picture list of a current picture including the current block and a reference picture list of a co-located picture including the co-located block.

公开(公告)号：US20230316993A1

公开(公告)日：2023-10-05

申请号：US18193808

申请日：2023-03-31

申请人： LX Semicon Co., Ltd.

发明人： Sang Suk KIM ,  Jang Su KIM ,  Ji Hwan KIM ,  Jong Min LEE ,  Kyeong Rok LEE

IPC分类号： G09G3/32

CPC分类号： G09G3/32 ,  G09G2320/0247 ,  G09G2340/0407 ,  G09G2320/0633

摘要： An LED driving circuit adjusts a PWM driving frequency in light emitting diode driving, and changes a PWM frequency of an LED driving circuit in response to a frequency of a PWM clock signal delivered externally or internally.

公开(公告)号：US20230290294A1

公开(公告)日：2023-09-14

申请号：US18320669

申请日：2023-05-19

申请人： LX SEMICON CO., LTD.

发明人： Hyeong Seok Kim

IPC分类号： G09G3/20 ,  G09G5/00

CPC分类号： G09G3/2092 ,  G09G5/008 ,  G09G2320/064 ,  G09G2310/08 ,  G09G2320/0693

摘要： Disclosed are a display driving circuit and a frequency correction method of the display driving circuit, capable of quickly correcting a frequency change of a clock signal when a display device is driven at a low scan rate.