公开(公告)号：US10930236B2

公开(公告)日：2021-02-23

申请号：US16406427

申请日：2019-05-08

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Kyung-Hun Lee ,  Jahun Koo ,  Ho Lee

IPC: G06F3/038 ,  G09G5/00 ,  G09G3/36

Abstract: Stages of a gate driver may each receive a clock signal, an inverted clock signal, a previous carry signal and a subsequent carry signal, and may each include an output part, a node controlling part and a holding part. In a mode transition period, clock signal and the inverted clock signal may both be temporarily applied with on voltages. The holding parts of the stages receive the clock signal and the inverted clock signal each having the on voltage, and in response, discharge the control nodes, the gate output nodes and the carry output nodes, thereby preventing faulty operation.

公开(公告)号：US10685591B2

公开(公告)日：2020-06-16

申请号：US16376036

申请日：2019-04-05

Applicant: Samsung Display Co., Ltd.

Inventor： Ja Hun Koo ,  Hak Sun Kim ,  Kyung-Hun Lee

IPC: G09G3/00 ,  G02F1/133 ,  G02B27/22 ,  G06F1/16 ,  G09G3/20 ,  H04N13/393 ,  G02F1/1333

Abstract: The present disclosure is related to a display device including: a display panel including a display surface displaying an image; and a morphing driver disposed at an opposite side of the display surface of the display panel and physically controlling a height of the display surface in a first direction which is substantially perpendicular to the display surface according to depth information of input image data, wherein the morphing driver comprises at least one among a piezoelectric film, an electroactive polymer, and a magnetic generator.

公开(公告)号：US12148395B2

公开(公告)日：2024-11-19

申请号：US18102794

申请日：2023-01-30

Applicant: Samsung Display Co., Ltd.

Inventor： Kyung-Hun Lee

IPC: G09G3/3291 ,  G09G3/3266

Abstract: Provided is a display device comprising a display panel including a plurality of pixels respectively connected to a plurality of scan lines and a plurality of data lines, a scan driver configured to scan signals to the pixels through the scan lines, a date driver configured to provide data voltages to the pixels through the data lines, and a controller configured to control the scan driver and the date driver, and including an image data processor configured to receive input image data at variable input frame frequency. Accordingly, display quality is improved because a flicker is minimized or reduced.

公开(公告)号：US11763771B2

公开(公告)日：2023-09-19

申请号：US17151313

申请日：2021-01-18

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jahun Koo ,  Kyung-Hun Lee ,  Ho Lee

IPC: G09G3/36 ,  G09G5/12 ,  G02F1/133

CPC classification number: G09G3/3696 ,  G02F1/13306 ,  G09G3/3655 ,  G09G5/12 ,  G09G2320/0247 ,  G09G2320/0257 ,  G09G2340/0435

Abstract: A liquid crystal display device includes a source device that outputs image data and a sink device that performs a displaying operation based on the image data. The source device changes a frame rate of an image frame composing the image data while the displaying operation is performed. The sink device changes a frame rate of a panel driving frame for the displaying operation by adjusting a vertical blank period of the panel driving frame as the frame rate of the image frame is changed. Here, the sink device adjusts a common voltage applied to a display panel included in the sink device during a display operation of an individual frame, in accordance with the frame rate of the panel driving frame.

公开(公告)号：US20230148307A1

公开(公告)日：2023-05-11

申请号：US17814613

申请日：2022-07-25

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Kyung-Hun Lee

IPC: G09G3/32 ,  G09G3/20

CPC classification number: G09G3/32 ,  G09G3/2007 ,  G09G3/2096 ,  G09G2310/027 ,  G09G2320/0247 ,  G09G2320/0276 ,  G09G2320/0626 ,  G09G2330/028 ,  G09G2340/0435

Abstract: A display device includes a display panel including a plurality of pixels, and a panel driver configured to drive the display panel. The panel driver receives input image data at a variable input frame frequency, stores the variable input frame frequency as a previous frame frequency by monitoring the variable input frame frequency, determines a reference frequency based on the previous frame frequency, determines a reference luminance as a luminance of the display panel at the reference frequency, and adjusts data voltages applied to the plurality of pixels such that a luminance of the display panel at the variable input frame frequency becomes the reference luminance.

公开(公告)号：US10923044B2

公开(公告)日：2021-02-16

申请号：US16657408

申请日：2019-10-18

Applicant: Samsung Display Co., Ltd.

Inventor： Jahun Koo ,  Su-Han Woo ,  Kyung-Hun Lee

IPC: G09G3/34 ,  G09G3/36

Abstract: A method of adjusting luminance of a backlight unit included in a liquid crystal display device that performs inversion driving is provided. The method derives a positive polarity histogram and a negative polarity histogram of an image frame based on image frame data, corresponding to the image frame, and a data polarity pattern for implementing the image frame, derives a luminance compensation value according to data polarity dominance of the image frame by analyzing the positive polarity histogram and the negative polarity histogram, and applies the luminance compensation value to the luminance of the backlight unit during a portion of a time period of the image frame.

公开(公告)号：US10909935B2

公开(公告)日：2021-02-02

申请号：US16506154

申请日：2019-07-09

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jahun Koo ,  Jinho Park ,  Jong Deuk Moon ,  Su-Han Woo ,  Kyung-Hun Lee ,  Kyung-Uk Choi

IPC: G09G5/10 ,  G09G3/34 ,  G09G3/36

Abstract: A liquid crystal display device includes a liquid crystal display panel, a light source configured to provide the liquid crystal display panel with a light, a vertical blank detector circuit configured to calculate a counting value of a vertical blank period of a frame by counting a synchronization signal, a luminance correction value calculator circuit configured to calculate a luminance correction value by comparing the counting value of the vertical blank period with a plurality of reference counting values, and a light source driver configured to generate a light source driving signal and provide the light source driving signal to the light source. The light source driving signal has a normal level corresponding to a normal luminance value in an active period of the frame and has a correction level corresponding to the luminance correction value in the vertical blank period of the frame.

公开(公告)号：US10902817B2

公开(公告)日：2021-01-26

申请号：US16244344

申请日：2019-01-10

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jahun Koo ,  Kyung-Hun Lee ,  Ho Lee

IPC: G09G3/36 ,  G09G5/12 ,  G02F1/133

Abstract: A liquid crystal display device includes a source device that outputs image data and a sink device that performs a displaying operation based on the image data. The source device changes a frame rate of an image frame composing the image data while the displaying operation is performed. The sink device changes a frame rate of a panel driving frame for the displaying operation by adjusting a vertical blank period of the panel driving frame as the frame rate of the image frame is changed. Here, the sink device adjusts a common voltage applied to a display panel included in the sink device during a display operation of an individual frame, in accordance with the frame rate of the panel driving frame.

公开(公告)号：US20200066215A1

公开(公告)日：2020-02-27

申请号：US16506154

申请日：2019-07-09

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jahun Koo ,  Jinho Park ,  Jong Deuk Moon ,  Su-Han Woo ,  Kyung-Hun Lee ,  Kyung-Uk Choi

IPC: G09G3/34 ,  G09G3/36

Abstract: A liquid crystal display device includes a liquid crystal display panel, a light source configured to provide the liquid crystal display panel with a light, a vertical blank detector circuit configured to calculate a counting value of a vertical blank period of a frame by counting a synchronization signal, a luminance correction value calculator circuit configured to calculate a luminance correction value by comparing the counting value of the vertical blank period with a plurality of reference counting values, and a light source driver configured to generate a light source driving signal and provide the light source driving signal to the light source. The light source driving signal has a normal level corresponding to a normal luminance value in an active period of the frame and has a correction level corresponding to the luminance correction value in the vertical blank period of the frame.

公开(公告)号：US10409110B2

公开(公告)日：2019-09-10

申请号：US15870053

申请日：2018-01-12

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Ja Hun Koo ,  Kyung-Hun Lee ,  Tae-Jong Jun ,  Woo-Young Cheon

IPC: G02F1/1335 ,  G02F1/1368

Abstract: A color conversion display panel includes a substrate. A color conversion portion is disposed on the substrate. The color conversion portion includes a semiconductor nanocrystal. A transmission portion is disposed on the substrate. A blue light blocking filter is disposed between the substrate and the color conversion portion. The blue light blocking filter includes a first convex portion that protrudes toward the substrate. The transmission portion includes a first region including a scatterer and a second region including a second convex portion that protrudes toward the substrate.