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公开(公告)号：US11900847B2
公开(公告)日：2024-02-13
申请号：US17939018
申请日：2022-09-07
发明人： Sehyuk Park , Jinyoung Roh , Woomi Bae , Hae-Kwan Seo , Youngha Sohn
CPC分类号： G09G3/2003 , G09G2310/0275
摘要： A display apparatus includes a display panel and a display driver. The display panel has a first pixel structure. The display driver is configured to receive input image data including first data, and generate a driving signal for driving the display panel based on conversion data. The display driver includes a converter configured to convert the first data into the conversion data. The conversion data include conversion data in N rows and M columns. Each of (2K−1)-th column conversion data include first color conversion data representing a first color and second color conversion data representing a second color. Each of 2K-th column conversion data include third color conversion data representing a third color and fourth color conversion data representing the second color. N, M and K are positive integers.
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公开(公告)号：US11837143B2
公开(公告)日：2023-12-05
申请号：US18092510
申请日：2023-01-03
发明人： Hyo Jin Lee , Jae Keun Lim , Hong Soo Kim , Jinyoung Roh , Sehyuk Park
IPC分类号： G09G3/20
CPC分类号： G09G3/2074 , G09G2310/027 , G09G2320/0247 , G09G2330/028
摘要： A display apparatus including: a display panel configured to display an image based on input image data; a data driver configured to output a data voltage to the display panel; and a driving controller configured to determine a driving frequency of the display panel based on flicker values for grayscale values of the input image data and output a driving frequency signal representing the driving frequency of the display panel to a host.
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公开(公告)号：US20230309345A1
公开(公告)日：2023-09-28
申请号：US18124615
申请日：2023-03-22
发明人： Hae-Kwan Seo , Jinyoung Roh , Youngha Sohn
IPC分类号： H10K59/121 , H10K59/122 , H10K59/131 , H10K59/35
CPC分类号： H10K59/1213 , H10K59/122 , H10K59/131 , H10K59/353
摘要： A display device includes: a base substrate; a first pixel including: a first transistor disposed on the base substrate, a first conductive pattern disposed on the first transistor, a first light emitting element disposed on the first conductive pattern, and a first connection line connecting the first conductive pattern and the first light emitting element, and a second pixel adjacent to the first pixel in a first direction and including: a second transistor disposed on the base substrate, a second conductive pattern disposed on the second transistor, a second light emitting element disposed on the second conductive patten, and a second connection line connecting the second conductive pattern and the second light emitting element.
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公开(公告)号：US11545092B2
公开(公告)日：2023-01-03
申请号：US17515742
申请日：2021-11-01
发明人： Hyojin Lee , Sehyuk Park , Jinyoung Roh , Geunjeong Park , Eunho Lee , Hui Nam , Bonghyun You
IPC分类号： G09G3/3258 , G09G3/3266 , G09G3/3275 , H01L27/12
摘要： 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 first 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.
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公开(公告)号：US11538421B2
公开(公告)日：2022-12-27
申请号：US16824377
申请日：2020-03-19
发明人： Hongsoo Kim , Sehyuk Park , Hyo Jin Lee , Sangan Kwon , Jinyoung Roh , Sukhun Lee , Jun Heyung Jung
IPC分类号： G09G3/3291
摘要： A display device includes display device includes: a display panel including a plurality of pixels; a data driver configured to generate data voltages based on output image data, and to provide the data voltages to the plurality of pixels; and a controller configured to receive input image data and input frequency information from a host processor, and to provide the output image data to the data driver, wherein the controller includes an adaptive refresh block configured to: determine a target frequency by analyzing the input image data; determine a masking ratio based on an input frequency represented by the input frequency information and the target frequency; and selectively output the input image data as the output image data by performing a masking operation on the input image data with the masking ratio.
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26.发明授权公开(公告)号：US11436985B2
公开(公告)日：2022-09-06
申请号：US17315449
申请日：2021-05-10
发明人： Sehyuk Park , Hongsoo Kim , Jinyoung Roh , Hyojin Lee , Jaekeun Lim , Junheyung Jung
IPC分类号： G09G3/3291 , G09G3/20
摘要： A display apparatus includes a display panel including pixels, a gate driver applying a gate signal to a gate line, a data driver applying a data voltage to a data line and a driving controller determining a mode of an input image data to a moving image mode or a static image mode according to whether the input image data is a moving image or a static image, driving the display panel in a moving image driving frequency in the moving image mode and in a static image driving frequency in the static image mode, operating the gate driver in an alternate driving mode such that the gate driver scans a first group of the gate lines in a first duration and a second group of the gate lines in a second duration and inserting a compensation frame to scan all of the gate lines when an image transition is occurred in the static image mode.
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公开(公告)号：US11386852B2
公开(公告)日：2022-07-12
申请号：US16922906
申请日：2020-07-07
发明人： Sehyuk Park , Joon-Chul Goh , Sangan Kwon , HongSoo Kim , Hui Nam , Jinyoung Roh , Hyojin Lee
IPC分类号： G09G3/36 , G09G3/3291 , G09G3/3266
摘要： A display device includes a display panel including a first partial panel region and a second partial panel region, and a panel driver configured to drive the display panel. The panel driver determines a first driving frequency for the first partial panel region and a second driving frequency for the second partial panel region. When the first driving frequency and the second driving frequency are different from each other, the panel driver sets a boundary portion including a boundary between the first partial panel region and the second partial panel region, and determines a third driving frequency for the boundary portion to be between the first driving frequency and the second driving frequency.
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28.发明授权公开(公告)号：US11328649B2
公开(公告)日：2022-05-10
申请号：US16717907
申请日：2019-12-17
发明人： Hyojin Lee , Sehyuk Park , Eunho Lee , Jinyoung Roh , Hui Nam , Bong-Hyun You
IPC分类号： G09G3/20 , G09G3/3225
摘要： A driving controller of a display device, the controller including a segment divider configured to divide the image signal into a plurality of segments and define a predetermined number of adjacent segments among the plurality of segments as a segment block, an image signal adder configured to add up a gray scale value of the image signal of each of the predetermined number of adjacent segments and output the added-up gray scale values, an average gray scale calculator configured to receive the added-up gray scale values and output an average gray scale value, a correction circuit configured to output corrected added-up gray scale values obtained by adding a weight value to each of the added-up gray scale values on the basis of the average gray scale value, and a driving frequency determiner configured to determine the driving frequency of the display device on the basis of the corrected added-up gray scale values.
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公开(公告)号：US11257435B2
公开(公告)日：2022-02-22
申请号：US16931509
申请日：2020-07-17
发明人： HongSoo Kim , Sehyuk Park , Sangan Kwon , Jinyoung Roh , Sukhun Lee , Hyojin Lee , Junheyung Jung
IPC分类号： G09G5/10 , G09G3/3258 , G09G3/3291
摘要： A display apparatus includes a display panel, a gate driver, a data driver, and a driving controller. The display panel displays an image based on input image data. The gate driver outputs a gate signal to the display panel. The data driver outputs a data voltage to the display panel. The driving controller selectively determines a driving mode of the display apparatus between one of a normal driving mode and a low frequency driving mode, and determines a driving frequency of the display panel based on the input image data. The driving controller includes a flicker value storage storing flicker values for grayscale values of the input image data and a data remapper converting the grayscale value of the input image data to decrease a size of a maximum frequency grayscale area corresponding to a maximum driving frequency in the low frequency driving mode.
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30.发明授权公开(公告)号：US11170693B2
公开(公告)日：2021-11-09
申请号：US16788647
申请日：2020-02-12
发明人： Sehyuk Park , Hyojin Lee , Jinyoung Roh
IPC分类号： G09G3/20
摘要： A display device including a display panel including a plurality of pixels, and a driver configured to drive the display panel. The driver includes a dither configured to perform a dithering operation on image data including a plurality of pixel data for the plurality of pixels to generate dithered image data including a plurality of dithered pixel data respectively corresponding to the plurality of pixel data, and a still image detector configured to receive the dithered image data, to detect dither-irrelevant pixel data that are not changed from the plurality of pixel data by the dithering operation among the plurality of dithered pixel data, and to determine whether the dithered image data represent a still image by using the dither-irrelevant pixel data.
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