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公开(公告)号：US11423847B2
公开(公告)日：2022-08-23
申请号：US16823184
申请日：2020-03-18
Applicant: Samsung Display Co., Ltd.
Inventor： Hyunho Lim , Bongho Bae , Ok-Kwon Shin , Hyun Ha Yang , Chongguk Lee , Myeong Bin Lim , Sehui Jang
IPC: G09G3/3291 , G09G3/36
Abstract: A display device includes: a display panel including a plurality of pixels; a power management circuit configured to generate an analog power supply voltage; and a data driver configured to provide a pre-emphasis voltage and a data voltage to the plurality of pixels based on the analog power supply voltage, wherein the display device is configured to adjust a voltage level of the pre-emphasis voltage according to a distance from the data driver to each of the plurality of pixels to which the pre-emphasis voltage is applied, and wherein the display device is configured to adjust a voltage level of the analog power supply voltage according to the adjusted voltage level of the pre-emphasis voltage.
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公开(公告)号：US20180308414A1
公开(公告)日：2018-10-25
申请号：US15868581
申请日：2018-01-11
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Sun-Koo Kang , Jae-Han Lee , Ok-Kwon Shin
CPC classification number: G09G3/2003 , G09G3/3614 , G09G3/3648 , G09G3/3674 , G09G3/3677 , G09G3/3685 , G09G3/3688 , G09G2300/0426 , G09G2310/027 , G09G2310/0289 , G09G2310/063 , G09G2310/08 , G09G2320/0233 , G09G2320/0242
Abstract: A display apparatus includes a display panel, a first driver and a second driver. The display panel includes a plurality of gate lines and a plurality of data lines. The display panel is configured to display an image based on input image data. The first driver is configured to output compensating gate signals having the same timing to the gate lines during a first period and scan gate signals having different timings to the gate lines during a second period. The second driver is configured to apply a compensating data voltage corresponding to a compensating grayscale value to the data lines during the first period and a target data voltage corresponding to a target grayscale value to the data lines during the second period.
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公开(公告)号：US09251755B2
公开(公告)日：2016-02-02
申请号：US14470511
申请日：2014-08-27
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Ok-Kwon Shin , Jong Min Lee , Sun Kyu Son , Young-Il Ban , Jae-Han Lee
CPC classification number: G09G3/3674 , G09G3/3677 , G09G2310/0205 , G09G2310/0286 , G09G2310/08 , G11C19/28 , G11C19/287
Abstract: A gate driver includes a gate integrated circuit (“IC”) chip which receives at least two scanning start signals and at least four clock control signals, and outputs a plurality of gate-on voltages, where at least two clock control signals of the at least four clock control signals are generated based on one scanning start signal of the at least two scanning start signals, timings of the at least two scanning start signals are independent of each other, and timings of the at least two clock control signals based on the one scanning start signal are independent of each other.
Abstract translation: 栅极驱动器包括：门集成电路（IC）芯片，其接收至少两个扫描开始信号和至少四个时钟控制信号，并且输出多个栅极导通电压，其中至少两个时钟控制信号 基于所述至少两个扫描开始信号的一个扫描开始信号生成至少四个时钟控制信号，所述至少两个扫描开始信号的定时彼此独立，并且所述至少两个时钟控制信号的定时基于 一个扫描开始信号彼此独立。
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公开(公告)号：US11069276B2
公开(公告)日：2021-07-20
申请号：US16741346
申请日：2020-01-13
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Hyunho Lim , Bongho Bae , Ok-Kwon Shin , Chongguk Lee , Myeong Bin Lim , Sehui Jang
IPC: G09G3/20
Abstract: A display apparatus includes a display panel, a gate driver, a data driver and a gamma reference voltage generator. The display panel is configured to display an image based on input image data. The gate driver is configured to output a gate signal to the display panel. The data driver is configured to output a data voltage to the display panel. The gamma reference voltage generator includes a plurality of gamma amplifiers having varied bias currents. The gamma reference voltage generator is configured to generate gamma reference voltages and to output the gamma reference voltages to the data driver.
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5.发明授权公开(公告)号：US10235949B2
公开(公告)日：2019-03-19
申请号：US15096935
申请日：2016-04-12
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Young-Soo Sohn , Jae Hyoung Park , Ok-Kwon Shin , Jong-Jae Lee
IPC: G09G3/36
Abstract: A timing controller includes a data grouping part that generates a plurality of grayscale groups based on input image data, each grayscale group including n×m grayscales, a grayscale classifying part that generates a plurality of grayscale patterns respectively corresponding to the grayscale groups, a grayscale in the grayscale groups being classified in the grayscale patterns as a first grayscale if the grayscale is higher than a first reference grayscale or as a second grayscale if the grayscale is lower than a second reference grayscale, a pattern comparing part that compares each grayscale pattern with a first pattern including the n×m first and second grayscales, a pattern counter that counts a number of patterns of the grayscale patterns that are substantially the same as the first pattern, and a driving mode changing part that changes a driving mode of a display panel when the number is greater than a reference number.
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Patent Agency Ranking
公开(公告)号：US10147387B2
公开(公告)日：2018-12-04
申请号：US15455342
申请日：2017-03-10
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Sun-Koo Kang , Taegon Kim , Seungnam Park , Ok-Kwon Shin
IPC: G09G3/36
Abstract: A method of driving a display panel includes, a data driver outputting a precharge voltage to a plurality of pixels of the display panel during a first duration of a horizontal period, the data driver outputting a grayscale voltage to the pixels of the display panel during a second duration of the horizontal period and the data driver initializing the precharge voltage during the second duration of the horizontal period.
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公开(公告)号：US11289029B1
公开(公告)日：2022-03-29
申请号：US17307961
申请日：2021-05-04
Applicant: Samsung Display Co., Ltd.
Inventor： Jeongmin Sung , Woo-Chul Kim , Ok-Kwon Shin
IPC: G09G3/3291
Abstract: An organic light emitting diode (OLED) display device includes a display panel including a plurality of pixels, and a panel driver configured to drive the display panel. The panel driver drives the display panel at a frame frequency corresponding to 1/N of an emission frequency such that each frame period corresponds to an N multiple of an emission period, where N is an integer greater than 1. The panel driver gradually decreases the frame frequency of the display panel in a case where input image data are not received and gradually increases the frame frequency of the display panel in a case where the input image data are received.
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公开(公告)号：US20200234624A1
公开(公告)日：2020-07-23
申请号：US16741346
申请日：2020-01-13
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： HYUNHO LIM , Bongho Bae , Ok-Kwon Shin , Chongguk Lee , Myeong Bin Lim , Sehui Jang
IPC: G09G3/20
Abstract: A display apparatus includes a display panel, a gate driver, a data driver and a gamma reference voltage generator. The display panel is configured to display an image based on input image data. The gate driver is configured to output a gate signal to the display panel. The data driver is configured to output a data voltage to the display panel. The gamma reference voltage generator includes a plurality of gamma amplifiers having varied bias currents. The gamma reference voltage generator is configured to generate gamma reference voltages and to output the gamma reference voltages to the data driver.
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公开(公告)号：US10665148B2
公开(公告)日：2020-05-26
申请号：US15868581
申请日：2018-01-11
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Sun-Koo Kang , Jae-Han Lee , Ok-Kwon Shin
Abstract: A display apparatus includes a display panel, a first driver and a second driver. The display panel includes a plurality of gate lines and a plurality of data lines. The display panel is configured to display an image based on input image data. The first driver is configured to output compensating gate signals having the same timing to the gate lines during a first period and scan gate signals having different timings to the gate lines during a second period. The second driver is configured to apply a compensating data voltage corresponding to a compensating grayscale value to the data lines during the first period and a target data voltage corresponding to a target grayscale value to the data lines during the second period.
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公开(公告)号：US10223958B2
公开(公告)日：2019-03-05
申请号：US14880890
申请日：2015-10-12
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Jun-Pyo Lee , Sun-Kyu Son , Ok-Kwon Shin , Jung-Won Kim , Hee-Jin Choi , Sang-Soo Kim
IPC: G09G3/20 , G02F1/1362 , G09G3/36 , G02F1/1343
Abstract: A display device includes a first unit pixel disposed in a first pixel column and a first pixel row, and a second unit pixel disposed in the first pixel column and a second pixel row adjacent to the first pixel row, and first and second gate lines extending in a row direction and having gate voltage input pads at a terminal portion thereof. First and second data lines extend in a column direction and are connected to the first unit pixel and the second unit pixel, respectively. A first charge control line extends in the row direction and has a charge control gate voltage input pad disposed at a terminal portion thereof. The first gate line is connected to the first unit pixel and the second gate line is connected to the second unit pixel. The first gate line and the second gate line simultaneously receive a same gate pulse.
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