公开(公告)号：US09865194B2

公开(公告)日：2018-01-09

申请号：US14991474

申请日：2016-01-08

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Ja-Hun Koo ,  Jong-Deuk Moon ,  Kyung-Hun Lee

IPC: G09G5/00 ,  G09G3/20

CPC classification number: G09G3/2096 ,  G09G3/20 ,  G09G2310/08 ,  G09G2320/0247 ,  G09G2320/103 ,  G09G2330/021 ,  G09G2360/18

Abstract: A display system includes a graphic processor and a display apparatus. The graphic processor supplies a first image signal and a first synchronization signal. The display apparatus is driven in a normal mode in which a first image is displayed, during a first period, based on the first image signal and the first synchronization signal provided from the graphic processor and in a panel self refresh (PSR) mode in which a second image is displayed based on a second image signal stored in a frame buffer of the display apparatus and a second synchronization signal generated in the display apparatus, and transmits the second synchronization signal of the PSR mode to the graphic processor when a driving mode of the display apparatus is changed from the PSR mode to the normal mode. The graphic processor is configured to generate the first synchronization signal synchronized with the second synchronization signal.

公开(公告)号：US12302733B2

公开(公告)日：2025-05-13

申请号：US17747125

申请日：2022-05-18

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Kyung-Hun Lee

IPC: H10K59/38 ,  H10K50/84 ,  H10K50/858 ,  H10K50/86 ,  H10K59/122

Abstract: A color conversion substrate includes a base substrate having a display area and a peripheral area positioned around the display area. A color filter layer is disposed in the display area under the base substrate. A front light blocking member is disposed in the peripheral area under the base substrate and includes first light blocking layers. The first light blocking layers overlap each other in a first direction that is a thickness direction of the base substrate. A side light blocking member is disposed in the peripheral area under the base substrate and is disposed outside the front light blocking member to surround the front light blocking member.

公开(公告)号：US11295688B2

公开(公告)日：2022-04-05

申请号：US16903746

申请日：2020-06-17

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jahun Koo ,  Haksun Kim ,  Kyung-Hun Lee

IPC: G09G3/36 ,  G09G5/18

Abstract: A display apparatus includes a display panel comprising a pixel which is connected to a gate line and a data line, a gate driver configured to generate a gate signal having a gate-on voltage and a gate-off voltage and to provide the gate line with the gate signal, and a gate controller configured to generate a clock signal having a duty ratio and to provide the gate driver with the clock signal, where a mean amplitude of the clock signal in a vertical blanking period of a frame cycle is smaller than the mean amplitude of the clock signal in an active period of the frame cycle.

公开(公告)号：US11289034B2

公开(公告)日：2022-03-29

申请号：US16773887

申请日：2020-01-27

Applicant: Samsung Display Co., Ltd.

Inventor： Jahun Koo ,  Seong Soon Cho ,  Jongwoon Kim ,  Kyung-Hun Lee

IPC: G09G3/34

Abstract: A display device includes a backlight unit including light source rows, each of the light source rows including light source blocks, a display panel configured to display an image by transmitting light emitted by the backlight unit, a panel driver configured to drive the display panel, and a backlight driver configured to drive the backlight unit. The backlight driver is configured to perform a vertical direction scan operation that sequentially select the light source rows and a horizontal direction sequential driving operation that sequentially drives the light source blocks included in a selected light source row of the light source rows.

公开(公告)号：US11276357B2

公开(公告)日：2022-03-15

申请号：US17145572

申请日：2021-01-11

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：US12008951B2

公开(公告)日：2024-06-11

申请号：US18222976

申请日：2023-07-17

Applicant: Samsung Display Co., Ltd.

Inventor： Kyung-Hun Lee

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2310/0275 ,  G09G2320/0247 ,  G09G2330/021 ,  G09G2330/028

Abstract: Disclosed is a display device which includes a display panel, a voltage generator, and a driving controller. The voltage generator generates a driving voltage and determines a voltage level of the driving voltage based on a voltage control signal. A current compensator calculates a load based on previous image data and outputs compensation image data with target luminance by compensating for current image data based on the load. The driving controller turns on the current compensator in a normal mode such that an image is displayed with the target luminance, and turns off the current compensator in a setting mode such that an image corresponding to the current image data is displayed with given reference luminance.

公开(公告)号：US11899314B2

公开(公告)日：2024-02-13

申请号：US18146903

申请日：2022-12-27

Applicant: SAMSUNG DISPLAY CO., LTD.

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

IPC: G02F1/1335 ,  G02F1/13357 ,  G02F1/1368

CPC classification number: G02F1/133617 ,  G02F1/1368 ,  G02F1/133504 ,  G02F1/133509 ,  G02F1/133514 ,  G02F1/133526 ,  G02F1/133528 ,  G02F1/133614 ,  G02F1/133621 ,  G02F2202/36

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.

公开(公告)号：US11854469B2

公开(公告)日：2023-12-26

申请号：US17814613

申请日：2022-07-25

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Kyung-Hun Lee

IPC: G09G5/10 ,  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：US11430402B2

公开(公告)日：2022-08-30

申请号：US16511184

申请日：2019-07-15

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jahun Koo ,  Haksun Kim ,  Kyung-Hun Lee

IPC: G09G3/38 ,  G09G5/18 ,  G09G3/36

Abstract: A display apparatus includes a display panel comprising a pixel which is connected to a gate line and a data line, a gate driver configured to generate a gate signal having a gate-on voltage and a gate-off voltage and to provide the gate line with the gate signal, and a gate controller configured to generate a clock signal having a duty ratio and to provide the gate driver with the clock signal, where a mean amplitude of the clock signal in a vertical blanking period of a frame cycle is smaller than the mean amplitude of the clock signal in an active period of the frame cycle.

公开(公告)号：US11269217B2

公开(公告)日：2022-03-08

申请号：US17121207

申请日：2020-12-14

Applicant: SAMSUNG DISPLAY CO., LTD.

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

IPC: G02F1/1335 ,  G02F1/13357 ,  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.