公开(公告)号：US20160155382A1

公开(公告)日：2016-06-02

申请号：US14699993

申请日：2015-04-29

Applicant: Samsung Display Co., Ltd.

Inventor： Man-Bok Cheon ,  Jin-Ho Lee ,  Seung-Ho Park

IPC: G09G3/32

CPC classification number: G09G3/3233 ,  G09G3/3225 ,  G09G3/3258 ,  G09G2320/0233 ,  G09G2320/0276 ,  G09G2320/046 ,  G09G2320/0626 ,  G09G2320/0666 ,  G09G2320/0673 ,  G09G2330/021 ,  G09G2330/025 ,  G09G2330/045 ,  G09G2360/16

Abstract: A display device and a method of driving the same are disclosed. In one aspect, the display device includes a gamma generator configured to generate emission duty data having an emission duty period based on input image data, a panel load calculator configured to calculate a load of the display panel, and a target driving voltage determiner configured to determine a target driving voltage. The display device also includes an emission duty controller configured to adjust the emission duty period and determine a target global current, driver configured to drive the display panel, and a driving voltage generator configured to supply the driving voltage to the display panel, measure driving currents flowing into the display panel, and adjust the driving voltage to include the target driving voltage based on the difference between the sum of the measured driving currents and the target global current.

Abstract translation: 公开了一种显示装置及其驱动方法。 一方面，显示装置包括：伽马发生器，其被配置为生成基于输入图像数据具有发射占空比的发射占空比数据;配置为计算显示面板的负载的面板负载计算器;以及目标驱动电压确定器， 确定目标驱动电压。 显示装置还包括发射占空比控制器，其被配置为调整发射占空比时间并且确定被配置为驱动显示面板的目标全局电流驱动器，以及被配置为向显示面板提供驱动电压的驱动电压发生器，测量驱动电流 流入显示面板，并且基于所测量的驱动电流和目标全局电流之和的差来调节驱动电压以包括目标驱动电压。

公开(公告)号：US10937372B2

公开(公告)日：2021-03-02

申请号：US15163583

申请日：2016-05-24

Applicant: Samsung Display Co., Ltd.

Inventor： Byoung-Kwan An ,  Seung-Ho Park ,  Hee-Sook Park ,  Ji-Hye Eom

IPC: G09G3/3291

Abstract: A spot compensating apparatus including a spot compensation data generator configured to generate spot compensation data based on a first precision unit in a first block area having a spot, and based on a second precision unit in a second block area not having the spot, the spot compensation data being for compensating the spot displayed on a display panel configured to display an image based on first image data, the second precision unit having less precision than the first precision unit, and a spot compensator configured to perform a spot compensation on the first image data using the spot compensation data to output second image data.

公开(公告)号：US10395577B2

公开(公告)日：2019-08-27

申请号：US15371967

申请日：2016-12-07

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Man-Bok Cheon ,  So-Young Kim ,  Jin-Ho Lee ,  Seung-Ho Park

IPC: G09G5/02 ,  G09G3/20 ,  G09G3/3233 ,  G09G3/3258 ,  G09G3/3266 ,  G09G3/3225 ,  G09G3/3275

Abstract: A method of driving an OLED display device includes receiving image data. A load value is determined for each sub-pixel. A first load value is set to a largest load value determined for each sub-pixel. A first correction factor is calculated that decreases as the first load value increases, when the first load value is greater than a first threshold. A second load value is calculated based on the image data and current contribution weights for the sub-pixels. A second correction factor is calculated that decreases as the second load value increases, when the second load value is greater than a second threshold. Either the first correction factor or the second correction factor is selected. The image data is converted into output image data based on the correction factor. An image corresponding to the output image data is displayed.

公开(公告)号：US09633601B2

公开(公告)日：2017-04-25

申请号：US14699993

申请日：2015-04-29

Applicant: Samsung Display Co., Ltd.

Inventor： Man-Bok Cheon ,  Jin-Ho Lee ,  Seung-Ho Park

IPC: G09G3/32 ,  G09G3/3233 ,  G09G3/3258 ,  G09G3/3225

CPC classification number: G09G3/3233 ,  G09G3/3225 ,  G09G3/3258 ,  G09G2320/0233 ,  G09G2320/0276 ,  G09G2320/046 ,  G09G2320/0626 ,  G09G2320/0666 ,  G09G2320/0673 ,  G09G2330/021 ,  G09G2330/025 ,  G09G2330/045 ,  G09G2360/16

Abstract: A display device and a method of driving the same are disclosed. In one aspect, the display device includes a gamma generator configured to generate emission duty data having an emission duty period based on input image data, a panel load calculator configured to calculate a load of the display panel, and a target driving voltage determiner configured to determine a target driving voltage. The display device also includes an emission duty controller configured to adjust the emission duty period and determine a target global current, driver configured to drive the display panel, and a driving voltage generator configured to supply the driving voltage to the display panel, measure driving currents flowing into the display panel, and adjust the driving voltage to include the target driving voltage based on the difference between the sum of the measured driving currents and the target global current.

公开(公告)号：US10339864B2

公开(公告)日：2019-07-02

申请号：US15004905

申请日：2016-01-23

Applicant: Samsung Display Co., LTD.

Inventor： Jae-Woo Song ,  Hae-Goo Jung ,  Seung-Ho Park ,  Jae-Hoon Lee ,  Mi-Young Joo

IPC: G09G3/20 ,  G09G3/3258

Abstract: A method of digital-driving an organic light emitting display device includes analyzing a light emission pattern of the input image data and converting a third grayscale of the input image data into a first converted grayscale and a second converted grayscale based on an analysis result of the light emission pattern of the input image data.

公开(公告)号：US10311799B2

公开(公告)日：2019-06-04

申请号：US15428969

申请日：2017-02-09

Applicant: Samsung Display Co., Ltd.

Inventor： Seung-Ho Park ,  Jin-Ho Lee

IPC: G09G3/3291 ,  G09G3/20 ,  G09G3/3266 ,  G09G3/3233

Abstract: A display device according to example embodiments includes an image analyzer configured to calculate contrast and load of an image of a frame based on R, G, and B image data input corresponding to the frame, an image processor configured to control a peak control coefficient applied to W image data to adaptively control peak luminance based on the contrast and the load, and to respectively generate R′, G′, and B′ image data by subtracting a product of the W image data and the peak control coefficient from each of the R, G, and B image data, a display panel including a plurality of pixels, a data driver configured to generate a data signal based on the R′, G′, B, and W image data, and to provide the data signal to the display panel, and a scan driver configured to provide a scan signal to the display panel.

公开(公告)号：US20160307490A1

公开(公告)日：2016-10-20

申请号：US15019817

申请日：2016-02-09

Applicant: Samsung Display Co., Ltd.

Inventor： Jae-Hoon Lee ,  Do-Hyung Ryu ,  Seung-Ho Park ,  Jae-Woo Song ,  Hae-Goo Jung

IPC: G09G3/20 ,  G09G3/32

CPC classification number: G09G3/3225 ,  G09G3/2022 ,  G09G2320/0271 ,  G09G2330/021 ,  G09G2330/028 ,  G09G2360/16

Abstract: An organic light-emitting diode display and a method of driving the same are disclosed. In one aspect, the display includes a display panel and an image data converter configured to determine a grayscale gain based on a grayscale distribution of input image data and convert the input image data into output image data based on the grayscale gain. A display panel driver is configured to drive the display panel to display an image corresponding to the output image data, and a target current determiner is configured to determine a magnitude of a target current based on the input image data. The display also includes a power supply configured to provide a power source to the display panel and adjust the voltage level of the power source to correspond to the target current via a power line.

Abstract translation: 公开了一种有机发光二极管显示器及其驱动方法。 一方面，显示器包括显示面板和图像数据转换器，其被配置为基于输入图像数据的灰度分布来确定灰度增益，并且基于灰度增益将输入图像数据转换为输出图像数据。 显示面板驱动器被配置为驱动显示面板显示对应于输出图像数据的图像，并且目标电流确定器被配置为基于输入的图像数据来确定目标电流的大小。 所述显示器还包括被配置为向所述显示面板提供电源并经由电力线调整所述电源的电压电平以对应于所述目标电流的电源。

公开(公告)号：US20160225344A1

公开(公告)日：2016-08-04

申请号：US14793554

申请日：2015-07-07

Applicant: Samsung Display Co., Ltd.

Inventor： Mi-Young JOO ,  Seung-Ho Park ,  Kang-Hee Lee ,  Myung-Hee Han

IPC: G09G5/10 ,  G09G5/18 ,  G09G5/02 ,  G06K9/46

CPC classification number: G09G5/10 ,  G06K9/46 ,  G06K9/4642 ,  G06K9/4652 ,  G06K2009/4666 ,  G09G5/14 ,  G09G2320/0613 ,  G09G2320/0673 ,  G09G2320/0686

Abstract: A display device and method of adjusting luminance of a logo region of an image displayed on the same are disclosed. In one aspect, the display device includes a display panel configured to display an image including a logo region and a display driving integrated circuit configured to detect a logo estimate region of the image and determine a logo surrounding region that surrounds the logo estimate region. The integrated circuit is further configured to analyze a histogram of the logo surrounding region so as to determine a background maximum luminance, determine a high-gray-scale maximum luminance of the logo estimate region based on the background maximum luminance and adjust a gamma curve of the logo estimate region.

Abstract translation: 公开了一种显示装置和调整在其上显示的图像的标志区域的亮度的方法。 一方面，显示装置包括显示面板，其被配置为显示包括徽标区域的图像和被配置为检测图像的标识估计区域的显示驱动集成电路，并且确定围绕标识估计区域的标识周围区域。 集成电路还被配置为分析徽标周围区域的直方图，以便确定背景最大亮度，基于背景最大亮度确定标识估计区域的高灰度级最大亮度并且调整伽玛曲线 标志估计区域。

公开(公告)号：US20150243212A1

公开(公告)日：2015-08-27

申请号：US14523796

申请日：2014-10-24

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jae-Hoon Lee ,  Woo-Chul Kim ,  Seung-Ho Park

IPC: G09G3/32

CPC classification number: G09G3/3216 ,  G09G3/3225 ,  G09G2310/0205 ,  G09G2310/0221 ,  G09G2320/02 ,  G09G2320/0233

Abstract: A display apparatus includes a display panel having a first portion and a second portion, a gate driver configured to drive a first gate line group in the first portion of the display panel starting at a first scan start point and to drive a second gate line group in the second portion of the display panel starting at a second scan start point, the second scan start point being different from the first scan start point, a first data driver configured to output a first data voltage to a first data line group in the first portion and a second data driver configured to output a second data voltage to a second data line group in the second portion.

Abstract translation: 显示装置包括具有第一部分和第二部分的显示面板，栅极驱动器被配置为在第一扫描开始点处从显示面板的第一部分驱动第一栅极线组并驱动第二栅极线组 在从第二扫描开始点开始的显示面板的第二部分中，第二扫描开始点与第一扫描开始点不同，第一数据驱动器被配置为将第一数据电压输出到第一扫描起始点中的第一数据线组 部分和第二数据驱动器，被配置为将第二数据电压输出到第二部分中的第二数据线组。