公开(公告)号：US10593770B2

公开(公告)日：2020-03-17

申请号：US15870095

申请日：2018-01-12

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jongchan Lee ,  Taehoon Yang ,  Woonghee Jeong ,  Kyoungwon Lee ,  Yongsu Lee

IPC: H01L21/44 ,  H01L21/02 ,  H01L29/417 ,  H01L29/66 ,  H01L27/12 ,  H01L29/786

Abstract: A display device includes a first insulation layer on a first gate electrode, an active pattern on the first insulation layer and including an NMOS area and a PMOS area, the PMOS area overlapping the first gate electrode, a second insulation layer on the active pattern. The active pattern includes an NMOS area and a PMOS area, with the PMOS area overlapping the first gate electrode. In addition, a second gate electrode is on the second insulation layer and overlaps the NMOS area. An active-protecting pattern is in the same layer as the second gate electrode and passes through the second insulation layer to contact the PMOS area. A third insulation layer is on the active-protecting pattern and the second gate electrode. A data metal electrode passes through the third insulation layer and contacts the active-protecting pattern.

公开(公告)号：US10540939B2

公开(公告)日：2020-01-21

申请号：US15598459

申请日：2017-05-18

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jimyoung Seo ,  Kyoungwon Lee ,  Silyi Bang ,  Kwan-Young Oh ,  Junghwan Cho ,  Sangsu Han ,  Sangmi Kim ,  Jang-Hyun Yeo

IPC: G09G3/36

Abstract: A display apparatus includes a display panel to display an image, a first frame counter to count a first number of frames during a first duration and to be reset when the first number reaches a first reference number, a second frame counter to count a second number of the frames during a second duration and to be reset when the second number reaches a second reference number, wherein the second duration occurs after and is shorter than the first duration, a level counter to hold a count value at a first count value during the first duration, to change the count value when the first frame counter is reset, and to change the count value when the second frame counter is reset, and a common voltage generator to control a level of a common voltage to correspond to the count value and to output the common voltage.

公开(公告)号：US10163409B2

公开(公告)日：2018-12-25

申请号：US15090447

申请日：2016-04-04

Applicant: Samsung Display Co., Ltd.

Inventor： Kyoungwon Lee ,  Kwan-young Oh ,  Junghwan Cho ,  Sangsu Han

IPC: G09G3/36

Abstract: A display device includes a display panel including a plurality of pixels respectively connected to a plurality of gate lines and to a plurality of data lines, a gate driving circuit configured to drive the plurality of gate lines, a data driving circuit configured to drive the plurality of data lines, a timing controller configured to provide a data signal to the data driving circuit, configured to control the gate driving circuit, and configured to output a voltage control signal, and a voltage generator configured to generate a plurality of reference voltages in response to the voltage control signal, wherein the data driving circuit is further configured to convert the data signal into a grayscale voltage based on the plurality of reference voltages, wherein a voltage level of each of the reference voltages is changed periodically within a range.

公开(公告)号：US11315955B2

公开(公告)日：2022-04-26

申请号：US16286744

申请日：2019-02-27

Applicant: Samsung Display Co., Ltd.

Inventor： Kyoungwon Lee ,  Taehoon Yang ,  Jongchan Lee ,  Woonghee Jeong ,  Yongsu Lee

IPC: H01L27/12 ,  H01L27/32 ,  H01L29/786 ,  H01L29/66

Abstract: A thin film transistor substrate, a display device, a method of manufacturing a thin film transistor substrate, and a method of manufacturing a display device, the thin film transistor substrate including a substrate; a first thin film transistor on the substrate, the first thin film transistor including a first active pattern, and a first gate electrode arranged to overlap at least a part of the first active pattern; and a second thin film transistor on the substrate, the second thin film transistor including a second active pattern that includes a plurality of protrusions on an upper surface thereof, and a second gate electrode arranged to overlap at least a part of the second active pattern.

公开(公告)号：US11183650B2

公开(公告)日：2021-11-23

申请号：US16202595

申请日：2018-11-28

Applicant: Samsung Display Co., Ltd.

Inventor： Myounggeun Cha ,  Sanggun Choi ,  Meejae Kang ,  Sanggab Kim ,  Joon woo Bae ,  Thanh Tien Nguyen ,  Kyoungwon Lee ,  Yongsu Lee

IPC: H01L51/00 ,  H01L27/32 ,  H01L51/52 ,  H01L51/50 ,  H01L51/56

Abstract: A display substrate includes a first conductive layer on a base substrate, a first insulation layer on the first conductive layer, a second conductive layer on the first insulation layer, a second insulation layer on the second conductive layer, and a third conductive layer on the second insulation layer. The third conductive layer is connected to the first conductive layer and the second conductive layer through a contact hole passing through the first insulation layer, the second conductive layer, and the second insulation layer. A sidewall of the contact hole has a stepped shape.

公开(公告)号：US10854155B2

公开(公告)日：2020-12-01

申请号：US16407324

申请日：2019-05-09

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Kyoungwon Lee ,  Kwan-young Oh ,  Jimyoung Seo ,  Bonghyun You ,  Junghwan Cho ,  Sangsu Han

IPC: G09G3/36 ,  G09G3/20

Abstract: A display apparatus includes a display panel, a timing controller, a data driver, and a gate driver. The timing controller receives image data at a number of frames per second of a first level and generates a gate control signal and a data control signal. The timing controller includes an image converter that operates in film mode or normal mode when the input image data are moving image data, and that outputs film image data at a number of frames per second of second level lower than the first level during the film mode. The data driver applies a data voltage corresponding to the film image data to the display panel based on the data control signal. The gate driver applies a gate voltage to the display panel based on the gate control signal. The display panel operates at a frequency of the second level during the film mode.

公开(公告)号：US10311812B2

公开(公告)日：2019-06-04

申请号：US15446137

申请日：2017-03-01

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Kyoungwon Lee ,  Kwan-young Oh ,  Jimyoung Seo ,  Bonghyun You ,  Junghwan Cho ,  Sangsu Han

IPC: G09G3/36 ,  G09G3/20

Abstract: A display apparatus includes a display panel, a timing controller, a data driver, and a gate driver. The timing controller receives image data at a number of frames per second of a first level and generates a gate control signal and a data control signal. The timing controller includes an image converter that operates in film mode or normal mode when the input image data are moving image data, and that outputs film image data at a number of frames per second of second level lower than the first level during the film mode. The data driver applies a data voltage corresponding to the film image data to the display panel based on the data control signal. The gate driver applies a gate voltage to the display panel based on the gate control signal. The display panel operates at a frequency of the second level during the film mode.

公开(公告)号：US20170124985A1

公开(公告)日：2017-05-04

申请号：US15242454

申请日：2016-08-19

Applicant: Samsung Display Co., Ltd.

Inventor： Jung-taek Kim ,  Kyoungwon Lee ,  Joon-chul Goh ,  Youngwoo Choi

IPC: G09G5/10

CPC classification number: G09G3/342 ,  G09G2310/027 ,  G09G2310/08 ,  G09G2320/0276 ,  G09G2320/0646 ,  G09G2320/0673 ,  G09G2330/021 ,  G09G2360/16

Abstract: A display device includes: a display panel including first group pixels connected to a first gate line to receive first data voltages, and second group pixels connected to the first gate line to receive second data voltages; a backlight source to provide light to the display panel; a signal controller to divide horizontal image signals into first group image signals and second group image signals, to extract a first maximum grayscale image signal from the first group image signals, and to extract a second maximum grayscale image signal from the second group image signals; a power supply to generate first and second gamma driving voltages from a reference gamma driving voltage based on a grayscale level of the first maximum grayscale image signal and a grayscale level of the second maximum grayscale image signal.