公开(公告)号：US10326963B2

公开(公告)日：2019-06-18

申请号：US15674844

申请日：2017-08-11

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jaihyun Koh ,  Jaehoon Lee ,  Jeongbong Lee

IPC: H04N7/01 ,  G09G3/36 ,  G09G3/20

Abstract: A display device includes: a display panel; and a frequency controller which receives an image data signal and an input frequency information and outputs the image data signal and a timing control signal. The frequency controller includes: an image processor which receives the image data signal; a frame memory which stores the image data signal; an output frequency determining unit which receives the input frequency information and determines an output frequency based on a variation amount of the input frequency; and an image output unit which receives the image data signal from the image processor, receives an output frequency information from the output frequency determining unit, and outputs the image data signal and the timing control signal. When an input frequency varies, the output frequency determining unit determines the output frequency based on the following equations: K =  FREQ - P_FREQ M_FREQ  × SLOPE + OFFSET , and FREQ ′ = FREQ × K + P_FREQ × ( 1 - K ) .

公开(公告)号：US10431171B2

公开(公告)日：2019-10-01

申请号：US15665935

申请日：2017-08-01

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Heendol Kim ,  Jaihyun Koh ,  Bonghyun You ,  Jaehoon Lee ,  Dongwon Park

IPC: G09G3/36

Abstract: A method includes applying a common voltage to a display panel, digitally converting a feedback common voltage from the display panel, detecting an effective ripple signal exceeding a reference value based on the digitally converted feedback common voltage, comparing a total number of effective ripple signals detected during a first frame period with a threshold value, determining whether the effective ripple signals of the first frame period are crosstalk inducing signals based on a comparison result, and determining whether to change a polarity pattern of image data signals to be applied to the display panel during a second frame period based on a determination result in terms of the crosstalk inducing signal.

公开(公告)号：US10462337B2

公开(公告)日：2019-10-29

申请号：US15921782

申请日：2018-03-15

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jaihyun Koh ,  Munsan Park ,  Jaeho Choi

IPC: H04N5/202 ,  G09G3/00 ,  G09G3/36 ,  G06T5/00 ,  G06T7/50 ,  G02F1/1362 ,  H04N9/69 ,  G06T7/11 ,  G06T7/194

Abstract: A display device includes a substrate, a plurality of gate lines disposed on the substrate, and which extends in first direction, a plurality of data lines disposed on the substrate, and which extends in a second direction intersecting the first direction, pixels connected to the gate lines and the data lines, a data drive unit which applies data signals to the data lines, a gate drive unit which supplies gate signals to the gate lines, a timing controller which controls the data signals and the gate signals, an image depth analysis unit which receives an image signal, and generates a foreground image signal based on an image depth of the image signal, and a gamma correction unit which generates a gamma-corrected image signal by applying a plurality of gamma curves to the foreground image signal.

公开(公告)号：US09966013B2

公开(公告)日：2018-05-08

申请号：US15200574

申请日：2016-07-01

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Munsan Park ,  Jungtaek Kim ,  Jaihyun Koh ,  Junghwan Cho

IPC: G09G3/36 ,  G09G3/34

CPC classification number: G09G3/3406 ,  G09G3/3413 ,  G09G3/3611 ,  G09G3/3648 ,  G09G2320/0626 ,  G09G2320/0646 ,  G09G2320/0666 ,  G09G2360/16

Abstract: A display apparatus includes an image data receiver receiving image data of an image to be displayed. A driving mode determining controller receives anomalous trichromat data of a user, determines a driving mode as either a general driving mode or an anomalous trichromat correction driving mode, and outputs a driving mode signal indicative of the determination. A correction mode requirement luminance calculator calculates a correction mode requirement luminance for an image output for the user. A backlight boosting determination controller determines a level of boosting light emitted from a backlight, and outputs a boosting determine signal. An image data converter converts image data corresponding to the anomalous trichromat data of the user and the correction mode requirement luminance, and outputs a data signal corresponding to correction image data. The backlight emits light having an intensity corresponding to signals. A pixel transmits light according to the data signal.