公开(公告)号：US09672792B2

公开(公告)日：2017-06-06

申请号：US14836627

申请日：2015-08-26

Applicant: Samsung Display Co., Ltd.

Inventor： Yong-Jun Choi ,  Jae-Won Jeong ,  Jae-Suk Choi ,  Seung-Ho Baek ,  Joo Seok Yeom ,  Young-Su Han ,  Myeong-Su Kim ,  Yun-Jae Kim ,  Jin-Soo Kim ,  Seung Hwan Moon ,  Po-Yun Park ,  Jae Wan Park ,  Kwan-Young Oh ,  Min Joo Lee ,  Jung Hwan Cho

IPC: G09G3/20 ,  G09G3/36 ,  G09G5/10 ,  G09G5/18 ,  G06T1/20 ,  G06T1/60

CPC classification number: G09G5/18 ,  G06T1/20 ,  G06T1/60 ,  G09G3/2092 ,  G09G3/3406 ,  G09G3/3648 ,  G09G2300/04 ,  G09G2320/0247 ,  G09G2320/0626 ,  G09G2320/064 ,  G09G2320/103 ,  G09G2330/021 ,  G09G2340/0435 ,  G09G2360/18

Abstract: The present invention provides a display device with reduced power consumption and that reduces changes in luminance, and perceptibility of flicker, and a driving method thereof. A display device according to an exemplary embodiment comprises: a display panel configured to display a still image and a motion picture; a signal controller configured to control signals for driving the display panel; and a graphics processing unit configured to transmit input image data to the signal controller, wherein the signal controller comprises a frame memory configured to store the input image data, and the display panel is driven at a first frequency when the motion picture is displayed and the display panel is driven at a second frequency that is lower than the first frequency when the still image is displayed.

公开(公告)号：US09251756B2

公开(公告)日：2016-02-02

申请号：US14025479

申请日：2013-09-12

Applicant: Samsung Display Co., Ltd.

Inventor： Yong-Jun Choi ,  Hyun Seok Ko ,  Po-Yun Park ,  Min Joo Lee ,  Youn Jin Jung ,  Jung Hwan Cho

IPC: G09G3/06 ,  G09G3/36

CPC classification number: G09G3/3677 ,  G09G3/3614 ,  G09G3/3648 ,  G09G2320/0247 ,  G09G2320/0626 ,  G09G2320/0673 ,  G09G2340/0428

Abstract: A display device includes: a display panel configured to display an image; and a signal controller configured to control signals to drive the display panel. The signal controller includes: an image data converter configured to convert image data of “m” bits into image data of “n” bits; a gray voltage generator configured to generate a gray voltage corresponding to the image data of “n” bits; a control signal generator configured to generate a gate control signal; and a luminance change controller configured to control a luminance change period of an image displayed via the display panel to be greater than or equal to one second.

Abstract translation: 显示装置包括：显示面板，被配置为显示图像; 以及配置成控制信号以驱动显示面板的信号控制器。 信号控制器包括：图像数据转换器，被配置为将“m”位的图像数据转换为“n”位的图像数据; 灰度电压发生器，被配置为产生与“n”位的图像数据相对应的灰度电压; 被配置为产生门控制信号的控制信号发生器; 以及亮度变化控制器，被配置为控制经由显示面板显示的图像的亮度变化周期大于或等于1秒。

公开(公告)号：US08810496B2

公开(公告)日：2014-08-19

申请号：US14165037

申请日：2014-01-27

Applicant: Samsung Display Co., Ltd.

Inventor： Bong-Im Park ,  Kang-Hyun Kim ,  Jong-Hyon Park ,  Woo-Chul Kim ,  Yun-Jae Kim ,  Jae-Won Jeong ,  Bong-Ju Jun ,  Yong-Jun Choi ,  Woo-Young Lee

IPC: G09G3/36 ,  G09G3/20

CPC classification number: G09G3/3648 ,  G09G3/2003 ,  G09G3/3607 ,  G09G2320/0252 ,  G09G2320/0261 ,  G09G2340/16

Abstract: A liquid crystal display includes a timing controller and a liquid crystal panel. The timing controller sequentially receives first through third primitive image signals and sequentially outputs first through third corrected image signals. The liquid crystal panel displays an image based on the first through third corrected image signals. The timing controller generates a first converted image signal having a first gray level based on the first primitive image signal and stores the first converted image signal. The second primitive image signal has a second gray level and the timing controller generates a second converted image signal having a third gray level higher than the second gray level when the second gray level is lower than the first gray level. The timing controller generates the third corrected image signal using the second converted image signal and the third primitive image signal.

Abstract translation: 液晶显示器包括时序控制器和液晶面板。 定时控制器顺序地接收第一至第三原始图像信号，并顺序地输出第一至第三校正图像信号。 液晶面板基于第一至第三校正图像信号显示图像。 定时控制器基于第一原始图像信号生成具有第一灰度级的第一转换图像信号，并存储第一转换图像信号。 第二原始图像信号具有第二灰度级，并且当第二灰度级低于第一灰度级时，定时控制器产生具有比第二灰度级高的第三灰度级的第二转换图像信号。 定时控制器使用第二转换图像信号和第三原始图像信号产生第三校正图像信号。

公开(公告)号：US09305501B2

公开(公告)日：2016-04-05

申请号：US13668777

申请日：2012-11-05

Applicant: Samsung Display Co., Ltd.

Inventor： Yong-Jun Choi ,  Hyun Seok Ko ,  Po-Yun Park ,  Min Joo Lee ,  Jung-Hwan Cho

IPC: G09G5/00 ,  G09G3/36

CPC classification number: G09G3/3614 ,  G09G2320/0247 ,  G09G2330/021 ,  G09G2360/10

Abstract: A method to drive a display device includes: transmitting at least one data voltage to one or more of a plurality of data lines, scanning one or more of a plurality of gate lines to enable transmission of a gate signal in association with a first frame of a first hold section of a first still image section associated with display of a still image, and scanning one or more of the plurality of gate lines to enable transmission of the gate signal every frame of a first refresh section. The first still image section comprises the first refresh section.

Abstract translation: 一种用于驱动显示装置的方法包括：向至少一条数据线中的一条或多条数据线发送至少一个数据电压，扫描多条栅极线中的一条或多条栅极线以使得能够传输与第一帧相关联的栅极信号 与静止图像的显示相关联的第一静止图像部分的第一保持部分，以及扫描多个栅极线中的一个或多个以使得能够在第一刷新部分的每一帧传输门信号。 第一静止图像部分包括第一刷新部分。

公开(公告)号：US08766894B2

公开(公告)日：2014-07-01

申请号：US13767781

申请日：2013-02-14

Applicant: Samsung Display Co., Ltd.

Inventor： Bong-Im Park ,  Jong-Hyon Park ,  Bong-Ju Jun ,  Jae-Won Jeong ,  Yong-Jun Choi ,  Woo-Chul Kim ,  Byung-Kil Jeon ,  Nam-Gon Choi ,  Yun-Jae Kim ,  Dong-Beom Cho

IPC: G09G3/36

CPC classification number: G09G5/005 ,  G09G3/3611 ,  G09G2320/0252 ,  G09G2320/0261 ,  G09G2320/106 ,  G09G2340/0435 ,  G09G2340/16

Abstract: A liquid crystal display system including a signal processing device uses interpolation to generate an intermediate image frame using previous image frame data and present image frame data. The system converts data of the intermediate image frame into transposed image data that is to be used to drive a liquid crystal display panel and display a corresponding image. The transposed image data and the present image data are subjected to a prespecified DCC process (dynamic capacitance compensation process) to thereby generate respective first and second compensation image data. Since the first compensation image data is generated based on the transposed image data and the transposition is configured to prevent over-compensation by the DCC process, over-compensation by the dynamic capacitance compensation process can be reduced or prevented.

Abstract translation: 包括信号处理装置的液晶显示系统使用插值来生成使用先前图像帧数据和呈现图像帧数据的中间图像帧。 该系统将中间图像帧的数据转换为用于驱动液晶显示面板并显示相应图像的转置图像数据。 对转置的图像数据和当前图像数据进行预先指定的DCC处理（动态电容补偿处理），从而生成各自的第一和第二补偿图像数据。 由于基于转置的图像数据生成第一补偿图像数据，并且转置被配置为防止DCC处理的过度补偿，可以减少或防止通过动态电容补偿处理的过补偿。

公开(公告)号：US09292942B2

公开(公告)日：2016-03-22

申请号：US14048478

申请日：2013-10-08

Applicant: Samsung Display Co., Ltd.

Inventor： Bong-Im Park ,  Bong-Ju Jun ,  Yun-Jae Kim ,  Jae-Won Jeong ,  Yong-Jun Choi ,  Dong-Beom Cho ,  Woo-Jin Jung ,  Kang-Hyun Kim

IPC: G09G5/10 ,  G06T11/00 ,  G09G3/36

CPC classification number: G06T11/001 ,  G09G3/3611 ,  G09G2320/0252 ,  G09G2340/02 ,  G09G2340/16 ,  G09G2360/18

Abstract: Provided are an image signal compensation apparatus and a liquid crystal display (LCD) including the same. The image signal compensation apparatus includes a lookup table (LUT) and an image signal compensation unit. The LUT includes reference data that corresponds to each combination of first and second reference gray levels and is arranged in a matrix. The image signal compensation unit receives first and second image signals, receives reference data corresponding to the first and second image signals from the LUT, and compensates the second image signal using the reference data. The reference data includes diagonal reference data located on a diagonal line in the matrix, and at least one diagonal reference data from among the diagonal reference data has a different value from a corresponding combination of the first and second reference gray levels.

Abstract translation: 提供了一种图像信号补偿装置和包括该图像信号补偿装置的液晶显示器（LCD）。 图像信号补偿装置包括查找表（LUT）和图像信号补偿单元。 LUT包括对应于第一和第二参考灰度级的每个组合的参考数据并且被布置成矩阵。 图像信号补偿单元接收第一和第二图像信号，从LUT接收对应于第一和第二图像信号的参考数据，并使用参考数据来补偿第二图像信号。 参考数据包括位于矩阵中的对角线上的对角参考数据，并且对角参考数据中的至少一个对角参考数据与第一和第二参考灰度级的对应组合具有不同的值。

公开(公告)号：US20140015820A1

公开(公告)日：2014-01-16

申请号：US13668777

申请日：2012-11-05

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Yong-Jun Choi ,  Hyun Seok Ko ,  Po-Yun Park ,  Min Joo Lee ,  Jung-Hwan Cho

IPC: G09G5/00

CPC classification number: G09G3/3614 ,  G09G2320/0247 ,  G09G2330/021 ,  G09G2360/10

Abstract: A method to drive a display device includes: transmitting at least one data voltage to one or more of a plurality of data lines, scanning one or more of a plurality of gate lines to enable transmission of a gate signal in association with a first frame of a first hold section of a first still image section associated with display of a still image, and scanning one or more of the plurality of gate lines to enable transmission of the gate signal every frame of a first refresh section. The first still image section comprises the first refresh section.

Abstract translation: 一种驱动显示装置的方法包括：向至少一条数据线中的一条或多条数据线传送至少一条数据电压，扫描多条栅极线中的一条或多条栅极线以便能够传输与第一帧相关联的栅极信号 与静止图像的显示相关联的第一静止图像部分的第一保持部分，以及扫描多个栅极线中的一个或多个以使得能够在第一刷新部分的每一帧传输门信号。 第一静止图像部分包括第一刷新部分。