公开(公告)号：US20210027679A1

公开(公告)日：2021-01-28

申请号：US16853391

申请日：2020-04-20

Applicant: Samsung Display Co., Ltd.

Inventor： Sangan KWON ,  Kyunho KIM ,  Sungjin KIM ,  Subin PARK ,  Yeseul LEE

IPC: G09G3/00 ,  G09G3/20

Abstract: A method of obtaining overdriving data includes providing a first data voltage corresponding to a current line reference gray level to a second pixel for first and second data writing times for first and second pixels in a first frame, measuring first luminance based on the first data voltage, applying a second data voltage corresponding to a previous line reference gray level for the first data writing time in a second frame, providing a third data voltage of an overdriving voltage corresponding to a predicted overdriving gray level added to the first data voltage for the second data writing time in the second frame, measuring second luminance based on the third data voltage, and determining an overdriving value corresponding to a reference gray level pair of the current and the previous line reference gray level as the predicted overdriving gray level when the first and second luminance are the same.

公开(公告)号：US20190122630A1

公开(公告)日：2019-04-25

申请号：US16166915

申请日：2018-10-22

Applicant: Samsung Display Co., Ltd.

Inventor： Sangan KWON ,  Junpyo LEE ,  Kyunho KIM ,  Sungjin KIM ,  Yong-jin SHIN ,  Neung-beom LEE ,  Kyung-hwa LIM ,  Myungbo SIM ,  Jinhyuk JANG

IPC: G09G3/36 ,  G02F1/1335

Abstract: A display device includes: a display panel comprising a display area configured to display an image, wherein the display area includes a measurement area including a plurality of sub-measurement areas, and each of the plurality of sub-measurement areas includes a plurality of pre-map areas; a data driver configured to provide data voltages to the display panel; a signal controller; and a common voltage generator configured to provide a common voltage to the display panel, wherein an afterimage reduction mode is driven to change a level of the common voltage provided by the common voltage generator when the determined pre-map areas are adjacent to each other.

公开(公告)号：US20180024392A1

公开(公告)日：2018-01-25

申请号：US15654957

申请日：2017-07-20

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Seunghyun PARK ,  Sungjin KIM ,  Junho SONG

IPC: G02F1/1333 ,  G02F1/1362

CPC classification number: G02F1/13336 ,  G02F1/133553 ,  G02F1/136227 ,  G02F1/136286 ,  G02F2001/1351 ,  H01L27/3248 ,  H01L27/3276 ,  H01L51/0002 ,  H01L51/5218 ,  H01L51/5284

Abstract: A display device includes a first substrate spaced from a second substrate, a gate line, a first data line, and a second data line on the first substrate, a first switch connected to the gate line and the first data line, a second switch connected to the gate line and the second data line, a first pixel electrode connected to the first switch, and a second pixel electrode connected to the second switch. The second pixel electrode is adjacent to the first pixel electrode. The first gate line extends in a first direction. A first light emission area positioned corresponding to the first pixel electrode and a second light emission area positioned corresponding to the second pixel electrode are adjacent to each other in the first direction. The second data line and the second switch are in the first light emission area.

公开(公告)号：US20200035173A1

公开(公告)日：2020-01-30

申请号：US16401600

申请日：2019-05-02

Applicant: Samsung Display Co., Ltd.

Inventor： Kyunho KIM ,  Bonggyun KANG ,  Sungjin KIM ,  Neung-Beom LEE ,  Jun Pyo LEE

IPC: G09G3/36 ,  G06T7/00

Abstract: A display device includes an image analyzing part which determines whether current frame image data includes a crosstalk pattern, and a gamma voltage generator which generates current frame gamma data by applying the asymmetric gamma when the current frame image data do not include the crosstalk pattern, and generates the current frame gamma data by applying a symmetric gamma when the current frame image data includes the crosstalk pattern. The positive polarity and negative polarity data voltages of the asymmetric gamma are asymmetric with each other for each of the grayscales, and the positive polarity and negative polarity data voltages of the symmetric gamma are symmetric with each other for each of the grayscales.

公开(公告)号：US20200027418A1

公开(公告)日：2020-01-23

申请号：US16401518

申请日：2019-05-02

Applicant: Samsung Display Co., Ltd.

Inventor： Kyunho KIM ,  Sangan KWON ,  Sungjin KIM ,  Subin PARK ,  Neung-Beom LEE

IPC: G09G3/36 ,  G09G3/3275 ,  G09G3/3225

Abstract: A display device includes a display panel including a plurality of pixels, a voltage generator which generates a gate on voltage having a first voltage level that satisfies a target charging ratio of a pixel of the plurality of pixels, a voltage controller which receives an image signal and generates a voltage control signal when the image signal includes a predetermined reference pattern, a gate driver which generates a gate signal provided to the plurality of pixels based on the gate on voltage, a data driver which generates a data signal provided to the of the plurality of pixels based on the image signal, and a timing controller which generates control signals that control the gate driver and the data driver. The voltage generator changes the gate on voltage to have a second voltage level lower than the first voltage level based on the voltage control signal.

公开(公告)号：US20170235184A1

公开(公告)日：2017-08-17

申请号：US15373716

申请日：2016-12-09

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Seunghyun PARK ,  Sungin RO ,  Junho SONG ,  Seah KWON ,  Sungjin KIM ,  Youngjin PARK ,  Ocksoo SON ,  Yeogeon YOON ,  Jaehak LEE

IPC: G02F1/1335 ,  G02B5/02

CPC classification number: G02F1/133504 ,  G02B5/0236 ,  G02B5/0257 ,  G02B5/0268 ,  G02B5/0278 ,  G02F1/133553 ,  G02F2001/133562 ,  G02F2203/03

Abstract: An optical film includes: a light-transmissive matrix having a plate shape; a plurality of first rods having a refractive index different from a refractive index of the light-transmissive matrix and disposed at a first inclination angle in the light-transmissive matrix; and a plurality of second rods having a refractive index different from the refractive index of the light-transmissive matrix and disposed at a second inclination angle in the light-transmissive matrix. The first inclination angle is different from the second inclination angle.

公开(公告)号：US20170176795A1

公开(公告)日：2017-06-22

申请号：US15281742

申请日：2016-09-30

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Sungin RO ,  Sungjin KIM ,  Seunghyun PARK ,  Ocksoo SON ,  Jaehak LEE

IPC: G02F1/133 ,  G02F1/1335 ,  G02F1/1333 ,  G02F1/1343 ,  G02F1/1362 ,  G02F1/1368

CPC classification number: G02F1/133553 ,  G02F1/13318 ,  G02F1/133345 ,  G02F1/133514 ,  G02F1/134309 ,  G02F1/134336 ,  G02F1/13439 ,  G02F1/136286 ,  G02F1/1368 ,  G02F2001/134372 ,  G02F2201/121 ,  G02F2201/123

Abstract: A reflective display device includes: first and second substrates opposing one another; a liquid crystal layer between the first and second substrates; a gate line on the first substrate; a gate insulating layer on the gate line; a data line on the gate insulating layer and intersecting the gate line; a thin film transistor connected to the gate line and the data line; a first passivation layer on the data line and the thin film transistor; a reflective electrode on the first passivation layer; a second passivation layer on the reflective electrode; a pixel electrode on the second passivation layer; a common electrode on the second substrate; and a matrix electrode on at least one of the first and second substrates. The matrix electrode defines a pixel area.

公开(公告)号：US20190244580A1

公开(公告)日：2019-08-08

申请号：US16263257

申请日：2019-01-31

Applicant: Samsung Display Co., Ltd.

Inventor： Sangan KWON ,  Junpyo LEE ,  Kyunho KIM ,  Sungjin KIM ,  Yong-Jin SHIN ,  Neung-Beom LEE ,  Kyung-Hwa LIM ,  Jinhyuk JANG

IPC: G09G3/36 ,  G02F1/1362 ,  G02F1/1368 ,  G09G3/34

CPC classification number: G09G3/3696 ,  G02F1/136213 ,  G02F1/1368 ,  G02F2201/121 ,  G02F2201/123 ,  G09G3/3406 ,  G09G3/3677 ,  G09G3/3688 ,  G09G2300/0819 ,  G09G2310/08 ,  G09G2320/045 ,  G09G2320/048

Abstract: A method of driving a liquid crystal display panel is provided. The liquid crystal display panel includes: a liquid crystal display pixel including a liquid crystal structure including a pixel electrode, a liquid crystal layer, and a common electrode; a switching transistor connected between the pixel electrode of the liquid crystal structure and a data-line; and a storage capacitor connected to the pixel electrode of the liquid crystal structure. The method includes: calculating an accumulated driving time of the liquid crystal display panel by accumulating a driving time of the liquid crystal display panel; determining whether or not the accumulated driving time has reached a deterioration reference time; and when the accumulated driving time is determined to have reached the deterioration reference time, changing a gate-off voltage applied to a gate terminal of the switching transistor and a common voltage applied to the common electrode.

公开(公告)号：US20190035341A1

公开(公告)日：2019-01-31

申请号：US16012000

申请日：2018-06-19

Applicant: Samsung Display Co., Ltd.

Inventor： Neung-beom LEE ,  Junpyo LEE ,  Sangan KWON ,  Kyunho KIM ,  Sungjin KIM ,  Yong-jin SHIN ,  Shimho YI ,  Kyung-hwa LIM

IPC: G09G3/36 ,  G02F1/1368 ,  G02F1/133 ,  G02F1/1362 ,  G02F1/1343

Abstract: A display apparatus includes a display panel including display blocks, where each of the display blocks includes a plurality of pixels, a gate driver which outputs gate signals to the pixels, a data driver which receives image data and outputs data voltages corresponding to the image data to the pixels, and a timing controller which converts an image signal input thereto, outputs the converted image signal to the data driver as the image data, and controls a driving timing of the gate driver and the data driver. The timing controller controls output timings of at least data voltages output to pixels of a predetermined display block among the data voltages provided to the pixels of the display blocks, depending on a color pattern of the image signal corresponding to the pixels of the predetermined display block.

公开(公告)号：US20170123248A1

公开(公告)日：2017-05-04

申请号：US15252268

申请日：2016-08-31

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Sungin RO ,  Sungjin KIM ,  Seunghyun PARK ,  Ocksoo SON ,  Junho SONG

IPC: G02F1/1368 ,  G02F1/1335 ,  G02F1/1333 ,  H01L27/12 ,  H01L29/786

CPC classification number: G02F1/1368 ,  G02F1/133345 ,  G02F1/133512 ,  G02F1/133514 ,  G02F1/133553 ,  G02F1/136209 ,  G02F2001/136222 ,  G02F2201/123 ,  H01L27/1222 ,  H01L27/124 ,  H01L27/1248 ,  H01L27/1262 ,  H01L29/78618 ,  H01L29/78633 ,  H01L29/78669

Abstract: A display device includes a first substrate, a thin film transistor on the first substrate, a passivation layer on the thin film transistor, a reflective layer on the passivation layer, a color filter on the reflective layer, the reflective layer having a substantially same shape as that of the color filter in a plan view, a first insulating layer on the color filter, a pixel electrode on the first insulating layer, a second substrate opposing the first substrate, and a liquid crystal layer between the first substrate and the second substrate.