公开(公告)号：US20180075817A1

公开(公告)日：2018-03-15

申请号：US15685468

申请日：2017-08-24

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jee-hwal Kim ,  Ki-ho Kong

IPC: G09G3/36

CPC classification number: G09G3/3688 ,  G09G3/3225 ,  G09G3/3607 ,  G09G2300/0452 ,  G09G2310/027 ,  G09G2310/0297 ,  G09G2370/08

Abstract: A display driver integrated circuit (DDI) for driving a display panel is provided. The DDI is implemented as a single semiconductor chip including a driver circuit and a switching circuit. The driver circuit outputs image signals to be displayed on pixel groups connected to one gate line of a display panel to a plurality of channels during one horizontal time period. The switching circuit selectively connects each of the plurality of channels to data lines of a corresponding pixel group according to a selection signal indicating a display order of the pixel groups and provides the image signals to selected data lines.

公开(公告)号：US10199005B2

公开(公告)日：2019-02-05

申请号：US15468334

申请日：2017-03-24

Applicant: Samsung Electronics Co., Ltd.

Inventor： Ki-ho Kong ,  Hong-keun Yune ,  Jee-hwal Kim ,  Jin-hong Hwang ,  Seung-hyun An ,  Yang-hyo Kim

IPC: G09G3/36

Abstract: A display driving circuit and a display device including the display driving circuit are disclosed. The display driving circuit includes: a data driver including a first channel amplifier operating based on first pixel data and a second channel amplifier operating based on second pixel data and configured to drive first and second pixels of a display panel based on the first pixel data and the second pixel data of a first line; and a data comparator configured to compare the first pixel data with the second pixel data and determine operation states of the first channel amplifier and the second channel amplifier on a comparison result, before a first horizontal period in which the first pixel and the second pixel are driven.

公开(公告)号：US11217199B2

公开(公告)日：2022-01-04

申请号：US16930708

申请日：2020-07-16

Applicant: Samsung Electronics Co., Ltd.

Inventor： Ki-ho Kong ,  Taek-su Kwon ,  Jong-hyun Kim ,  Jee-hwal Kim ,  Jun-ho Park ,  Hong-keun Yune

IPC: G09G3/36 ,  G09G3/3258 ,  G09G5/02 ,  G09G3/20

Abstract: Disclosed are a display driving circuit and a display apparatus including the same. A display driving circuit includes a first amplifier configured to drive a first data line of a display panel based on first pixel data and a second amplifier configured to drive a second data line of the display panel based on second pixel data, wherein, when a first data difference between the first pixel data and the second pixel data is greater than or equal to a data value indicating one grayscale and is less than or equal to a first threshold value, the second amplifier is turned off, and the first amplifier is configured to drive the first data line and the second data line based on the first pixel data and the second pixel data.

公开(公告)号：US10755662B2

公开(公告)日：2020-08-25

申请号：US15951596

申请日：2018-04-12

Applicant: Samsung Electronics Co., Ltd.

Inventor： Ki-ho Kong ,  Taek-su Kwon ,  Jong-hyun Kim ,  Jee-hwal Kim ,  Jun-ho Park ,  Hong-keun Yune

IPC: G09G3/36 ,  G09G3/3258 ,  G09G5/02 ,  G09G3/20

Abstract: Disclosed are a display driving circuit and a display apparatus including the same. A display driving circuit includes a first amplifier configured to drive a first data line of a display panel based on first pixel data and a second amplifier configured to drive a second data line of the display panel based on second pixel data, wherein, when a first data difference between the first pixel data and the second pixel data is greater than or equal to a data value indicating one grayscale and is less than or equal to a first threshold value, the second amplifier is turned off, and the first amplifier is configured to drive the first data line and the second data line based on the first pixel data and the second pixel data.

公开(公告)号：US10078980B2

公开(公告)日：2018-09-18

申请号：US15496497

申请日：2017-04-25

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Ki-ho Kong ,  Hong-keun Yune ,  Jee-hwal Kim

IPC: G09G3/20

CPC classification number: G09G3/2092 ,  G09G3/2003 ,  G09G3/3225 ,  G09G3/3607 ,  G09G3/3696 ,  G09G2300/0426 ,  G09G2310/027 ,  G09G2310/0291 ,  G09G2310/0297 ,  G09G2310/08 ,  G09G2320/0276 ,  G09G2330/021 ,  G09G2330/028

Abstract: A data driver and a display driving circuit are provided. The display driving circuit includes a first gamma voltage generator that supplies a first gamma voltage set, a second gamma voltage generator that supplies a second gamma voltage set, a first channel driver that outputs a selected one of gamma voltages of the first gamma voltage set, and a second channel driver that outputs a selected one of gamma voltages of the second gamma voltage set. In a first operation mode, the first channel driver and the second channel driver respectively drive a first data line and a second data line of a display panel, and in a second operation mode, the second gamma voltage generator and the second channel driver are disabled, and the first channel driver time-divisionally drives the first data line and the second data line, based on the first gamma voltage set.

公开(公告)号：US09997095B2

公开(公告)日：2018-06-12

申请号：US15217953

申请日：2016-07-22

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jee-hwal Kim

IPC: G06F3/038 ,  G09G5/00 ,  G09G3/20 ,  G09G3/3275 ,  G09G3/36 ,  G09G5/02

CPC classification number: G09G3/20 ,  G09G3/2003 ,  G09G3/3275 ,  G09G3/3685 ,  G09G5/026 ,  G09G2310/027 ,  G09G2310/0291 ,  G09G2310/0297 ,  G09G2340/08 ,  G09G2370/12

Abstract: A display apparatus includes a display driving circuit and a controller. The display driving circuit includes a data driver to sequentially drive a plurality of pixel groups during one horizontal period in a time-division manner. The pixel groups are included in each of the horizontal lines of a display panel. The controller analyzes a pattern of received image data and determines a driving sequence of the plurality of pixel groups of each horizontal line based on a result of the analysis of the pattern of received image data.

公开(公告)号：US20170287429A1

公开(公告)日：2017-10-05

申请号：US15468334

申请日：2017-03-24

Applicant: Samsung Electronics Co., Ltd.

Inventor： Ki-ho KONG ,  Hong-keun Yune ,  Jee-hwal Kim ,  Jin-hong Hwang ,  Seung-hyun An ,  Yang-hyo Kim

IPC: G09G3/36

CPC classification number: G09G3/3685 ,  G09G3/3607 ,  G09G3/3674 ,  G09G3/3688 ,  G09G2310/027 ,  G09G2310/0275 ,  G09G2310/0286 ,  G09G2310/0291 ,  G09G2310/08 ,  G09G2330/021

Abstract: A display driving circuit and a display device including the display driving circuit are disclosed. The display driving circuit includes: a data driver including a first channel amplifier operating based on first pixel data and a second channel amplifier operating based on second pixel data and configured to drive first and second pixels of a display panel based on the first pixel data and the second pixel data of a first line; and a data comparator configured to compare the first pixel data with the second pixel data and determine operation states of the first channel amplifier and the second channel amplifier on a comparison result, before a first horizontal period in which the first pixel and the second pixel are driven.