公开(公告)号：US20150130364A1

公开(公告)日：2015-05-14

申请号：US14326726

申请日：2014-07-09

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Kyu-heon LEE ,  Sung-hwan JANG

IPC: H05B33/08

CPC classification number: H05B33/0815 ,  G09G3/3406 ,  G09G2230/00 ,  G09G2310/0237 ,  G09G2320/0247 ,  G09G2320/0257 ,  G09G2320/064 ,  H05B33/0845

Abstract: A method of driving backlight of a display apparatus and the display apparatus are provided. The method includes: generating a control pulse configured to drive a backlight unit, the control pulse including: a first high pulse section configured to turn on the backlight unit; and an afterimage removal section configured to remove a frame afterimage; and inputting the control pulse into the backlight unit to alternately turn on and off the backlight unit, wherein the afterimage removal section comprises at least one second high pulse section having smaller duty than duty of the first high pulse section.

Abstract translation: 提供了一种驱动显示装置和显示装置的背光的方法。 该方法包括：产生配置为驱动背光单元的控制脉冲，所述控制脉冲包括：第一高脉冲部分，被配置为接通所述背光单元; 以及被配置为去除帧余像的余像去除部分; 以及将所述控制脉冲输入到所述背光单元中以交替地打开和关闭所述背光单元，其中所述余像去除部分包括具有比所述第一高脉冲部分的占空比小的占空比的至少一个第二高脉冲部分。

公开(公告)号：US20160198118A1

公开(公告)日：2016-07-07

申请号：US14805723

申请日：2015-07-22

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jin-sung KANG ,  Sung-hwan JANG

IPC: H04N5/57 ,  H04N5/14

CPC classification number: H04N5/57 ,  G09G3/20 ,  G09G2320/0613 ,  G09G2320/0626 ,  G09G2320/103 ,  G09G2360/16 ,  H04N5/147

Abstract: A display apparatus and a display method for displaying an image. The display method includes: receiving image frames; detecting motion values of front and back image ones of the received image frames; analyzing the detected motion values to determine whether a scene change occurs each preset time unit; and adjusting a brightness value of an image frame to be displayed according to whether the scene change occurs. Therefore, the display apparatus improves a loss of a contrast ratio occurring when varying a brightness of an image frame of each fraction in an occurrence of a scene change and improves a viewing visual brightness.

Abstract translation: 一种用于显示图像的显示装置和显示方法。 显示方法包括：接收图像帧; 检测接收到的图像帧的前后图像的运动值; 分析检测到的运动值以确定每个预设时间单位是否发生场景变化; 以及根据场景变化是否发生来调整要显示的图像帧的亮度值。 因此，当在场景变化的发生中改变每个分数的图像帧的亮度时，显示装置改善了对比度的损失，并提高了观看视觉亮度。

公开(公告)号：US20180247600A1

公开(公告)日：2018-08-30

申请号：US15754170

申请日：2016-08-03

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jin-sung KANG ,  Sung-hwan JANG

IPC: G09G3/34 ,  G09G3/36

CPC classification number: G09G3/3406 ,  G09G3/3426 ,  G09G3/3648 ,  G09G2320/0247 ,  G09G2320/0261 ,  G09G2320/064 ,  G09G2320/0646 ,  G09G2320/0686 ,  G09G2320/103 ,  G09G2320/106 ,  G09G2340/0435 ,  G09G2340/16 ,  G09G2360/16

Abstract: Disclosed is a display device including: a display panel configured to display an image of a series of frames based on input image data; a light source configured to emit light to the display panel; a light source driver configured to supply a driving signal to the light source so that the light source can emit light; and a processor configured to detect a brightness change of a first frame of image data input to the display panel, make the light source driver supply a driving signal having a first frequency to the light source when the brightness change is lower than a predetermined boundary value, and make the light source driver supply a driving signal having a second frequency lower than the first frequency to the light source when the brightness change is higher than the boundary value. Thus, it is possible to decrease a flicker that occurs when the liquid crystal display device is driven with a PWM signal, i.e. an impulse signal for reducing a motion blur.