公开(公告)号：US11195465B2

公开(公告)日：2021-12-07

申请号：US16737363

申请日：2020-01-08

Applicant: Samsung Display Co., Ltd.

Inventor： Hyojin Lee ,  Sehyuk Park ,  Jinyoung Roh ,  Geunjeong Park ,  Eunho Lee ,  Hui Nam ,  Bonghyun You

IPC: G09G3/3258 ,  G09G3/3266 ,  G09G3/3275 ,  H01L27/12

Abstract: A display device including: a display panel including a pixel connected to a first scan line, second scan line, and data line, the pixel including: a first switch connected to the first scan line; a second switch connected to the second scan line; and a light emitting element; a low-frequency driving controller to output a power control signal having a first level in a first mode and a second power control signal having a second level in a second mode; a scan driver including first and second scan drivers to drive the first and second scan lines, wherein one of the first and second scan drivers operates in the second mode; and a data driver to operate in the second mode in response to the power control signal having the second level, wherein the data driver operates at a frequency lower than a reference frequency in the second mode.

公开(公告)号：US11100863B2

公开(公告)日：2021-08-24

申请号：US16739606

申请日：2020-01-10

Applicant: Samsung Display Co., Ltd.

Inventor： Geunjeong Park ,  Eunho Lee

IPC: G09G3/3258

Abstract: A display apparatus configured to adjust a driving frequency of a display panel by including a driving controller configured to: determine a low driving frequency corresponding to input image data; determine a plurality of compensation frequencies greater than the low driving frequency; and insert a plurality of compensation frequency frames having the compensation frequencies prior to a low driving frequency frame having the low driving frequency in a low frequency driving mode.

公开(公告)号：US10997926B2

公开(公告)日：2021-05-04

申请号：US16726464

申请日：2019-12-24

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Geunjeong Park ,  Eunho Lee

IPC: G09G3/3291 ,  G09G3/3266

Abstract: A driving controller includes an image conversion circuit configured to convert an image signal to an image data signal including active data and blank data, a still image determination circuit configured to output a flag signal of an active level when the image signal is a still image, an operation mode determination circuit configured to output an operation mode signal indicating a low frequency mode when the flag signal is the active level, and to output an operation mode signal indicating an image transition mode when the flag signal is changed from the active level and an inactive level, and a blank voltage determination circuit configured to output a blank voltage signal corresponding to a first gray scale during the low frequency mode, and a blank voltage signal corresponding to a second gray scale during the transition mode, wherein the blank data corresponds to the blank voltage signal.

公开(公告)号：US09805450B2

公开(公告)日：2017-10-31

申请号：US13873588

申请日：2013-04-30

Applicant: Samsung Display Co., Ltd.

Inventor： Mun-San Park ,  Cheolwoo Park ,  Yunki Baek ,  Kyoungju Shin ,  Eunho Lee

IPC: G06T5/20 ,  G06T5/00 ,  G09G3/20

CPC classification number: G06T5/20 ,  G06T5/002 ,  G06T2207/20192 ,  G09G3/20

Abstract: An image processing device includes a first filter that filters the image signal to output a first image signal, a second filter that converts the image signal corresponding to a predetermined pixel to a second image signal based on image signals corresponding to a plurality of peripheral pixels adjacent to the predetermined pixel, a third filter that filters the second image signal from the second filter to output a third image signal, a fourth filter that filters the third image signal from the third filter to output a fourth image signal, and an image synthesizer that synthesizes the first image signal from the first filter and the fourth image signal from the fourth filter.

公开(公告)号：US11538407B2

公开(公告)日：2022-12-27

申请号：US16739875

申请日：2020-01-10

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Hyojin Lee ,  Eunho Lee ,  Jinyoung Roh ,  Sehyuk Park ,  Bong Hyun You

IPC: G09G3/3233 ,  H01L29/786 ,  G09G3/3258

Abstract: A display apparatus includes a display panel displaying an image based on input image data, a driving controller determining a low frequency driving mode and a normal driving mode based on the input image data, a gate driver outputting a gate signal, a data driver outputting a data voltage, and a power voltage generator outputting power voltages. The driving controller is configured to generate a writing frame in which data is written in a pixel of the display panel and a holding frame in which the written data is maintained without writing data in the pixel in the low frequency driving mode. The driving controller is configured to operate at least one of the driving controller, the data driver, and the power voltage generator in a power reducing mode during the holding frame.

公开(公告)号：US11380268B2

公开(公告)日：2022-07-05

申请号：US17231545

申请日：2021-04-15

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Geunjeong Park ,  Eunho Lee

IPC: G09G3/3291 ,  G09G3/3266 ,  G09G3/20 ,  G09G3/3233 ,  G09G3/3275

Abstract: A driving controller includes an image conversion circuit configured to convert an image signal to an image data signal including active data and blank data, a still image determination circuit configured to output a flag signal of an active level when the image signal is a still image, an operation mode determination circuit configured to output an operation mode signal indicating a low frequency mode when the flag signal is the active level, and to output an operation mode signal indicating an image transition mode when the flag signal is changed from the active level and an inactive level, and a blank voltage determination circuit configured to output a blank voltage signal corresponding to a first gray scale during the low frequency mode, and a blank voltage signal corresponding to a second gray scale during the transition mode, wherein the blank data corresponds to the blank voltage signal.

公开(公告)号：US20200211475A1

公开(公告)日：2020-07-02

申请号：US16726464

申请日：2019-12-24

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： GEUNJEONG PARK ,  Eunho Lee

IPC: G09G3/3291 ,  G09G3/3266

Abstract: A driving controller includes an image conversion circuit configured to convert an image signal to an image data signal including active data and blank data, a still image determination circuit configured to output a flag signal of an active level when the image signal is a still image, an operation mode determination circuit configured to output an operation mode signal indicating a low frequency mode when the flag signal is the active level, and to output an operation mode signal indicating an image transition mode when the flag signal is changed from the active level and an inactive level, and a blank voltage determination circuit configured to output a blank voltage signal corresponding to a first gray scale during the low frequency mode, and a blank voltage signal corresponding to a second gray scale during the transition mode, wherein the blank data corresponds to the blank voltage signal.

公开(公告)号：US20140184653A1

公开(公告)日：2014-07-03

申请号：US13873588

申请日：2013-04-30

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Mun-San Park ,  Cheolwoo Park ,  Yunki Baek ,  Kyoungju Shin ,  Eunho Lee

IPC: G09G5/37 ,  G09G5/02

CPC classification number: G06T5/20 ,  G06T5/002 ,  G06T2207/20192 ,  G09G3/20

Abstract: An image processing device includes a first filter that filters the image signal to output a first image signal, a second filter that converts the image signal corresponding to a predetermined pixel to a second image signal based on image signals corresponding to a plurality of peripheral pixels adjacent to the predetermined pixel, a third filter that filters the second image signal from the second filter to output a third image signal, a fourth filter that filters the third image signal from the third filter to output a fourth image signal, and an image synthesizer that synthesizes the first image signal from the first filter and the fourth image signal from the fourth filter.

Abstract translation: 图像处理装置包括对图像信号进行滤波以输出第一图像信号的第一滤波器，基于与相邻的多个周边像素相对应的图像信号将对应于预定像素的图像信号转换为第二图像信号的第二滤波器 第三滤波器，滤波来自第二滤波器的第二图像信号以输出第三图像信号;滤波来自第三滤波器的第三图像信号以输出第四图像信号的第四滤波器;以及图像合成器，其中， 合成来自第一滤波器的第一图像信号和来自第四滤波器的第四图像信号。