公开(公告)号：US09721525B2

公开(公告)日：2017-08-01

申请号：US14685344

申请日：2015-04-13

Applicant: Samsung Display Co., Ltd.

Inventor： Suhyeong Park ,  KyoungWon Lee ,  Hoyong Jung ,  Sangmi Kim ,  Jimyoung Seo ,  Hyundae Lee ,  Heesoon Jeong ,  Cheolwoo Park ,  Bonghyun You

IPC: G06F3/038 ,  G09G3/36

CPC classification number: G09G3/3696 ,  G09G3/3648 ,  G09G2320/103 ,  G09G2330/021 ,  G09G2340/0435

Abstract: A display apparatus includes a display panel configured to display an image, a data driver including a voltage generator configured to convert an image data applied thereto to a data voltage and a buffer configured to apply the data voltage to the display panel, a timing controller including a mode controller configured to generate a mode selection signal on the basis of an image frame rate of the image data. The data driver is configured to be operated in a power cut-off mode or a stand-by mode in response to the mode selection signal. The driving voltage switch is configured to cut off the analog driving voltage applied to at least one of the buffer and the voltage generator during the power cut-off mode and the bias controller is configured to reduce a bias current in the stand-by mode.

公开(公告)号：US11483932B2

公开(公告)日：2022-10-25

申请号：US16727527

申请日：2019-12-26

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Bongchun Park ,  Sangmi Kim ,  Yeon-Sung Kim ,  Po-Yun Park ,  Seungjae Kang ,  Il Hyun Yang

IPC: H05K1/18 ,  H01L27/32 ,  H05K1/11 ,  H01R12/62

Abstract: A display device includes a display panel including first pads in a first row and second pads in a second row, a driving circuit board, a first connection circuit board including a first output portion on which first output pads bonded to the first pads of the display panel are disposed, a first input portion on which first input pads bonded to the driving circuit board are disposed, and a first protruding portion, and a second connection circuit board including a second output portion which overlap at least a portion of the first output portion and on which second output pads bonded to the second pads of the display panel are disposed, and a second input portion on which second input pads bonded to the driving circuit board are disposed. At least a portion of the first protruding portion is disposed on the second input portion.

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.