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公开(公告)号：US20220238074A1
公开(公告)日：2022-07-28
申请号：US17717997
申请日：2022-04-11
发明人： SEHYUK PARK , HONGSOO KIM , JINYOUNG ROH , BONGHYUN YOU , HYOJIN LEE , JAEKEUN LIM
IPC分类号： G09G3/3266 , G09G3/3275
摘要： A display apparatus includes a display panel, a gate driver, a data driver, a driving controller and a power voltage generator. The display panel displays an image based on input image data. The gate driver outputs a gate signal to a gate line. The data driver outputs a data voltage to a data line. The driving controller drives display areas of the display panel in different driving frequencies. The power voltage generator outputs a data power voltage to the data driver. The driving controller outputs an output data enable signal including a writing period having an active signal and a holding period having an inactive signal for the respective display areas. The power voltage generator generates the data power voltage having a high power voltage level during the writing period and a low power voltage level in at least a portion of the holding period.
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公开(公告)号：US20220013072A1
公开(公告)日：2022-01-13
申请号：US17346655
申请日：2021-06-14
发明人： JEONKYOO KIM , SOO YEON LEE , MANSEUNG CHO , KYEONG SOO KANG , JUNHEE MOON , BONGHYUN YOU , JIN KYU LEE
IPC分类号： G09G3/3291 , G09G3/3266
摘要： A display device includes a sensing circuit and a controller which selects a pixel row in a frame period. A vertical blank period of the frame period includes a sensing time in which the sensing circuit performs a sensing operation for the selected pixel row. The sensing circuit measures a first source voltage of a driving transistor of a pixel in the selected pixel row at a first time point of the sensing time, and measures a second source voltage of the driving transistor at a second time point of the sensing time. The controller calculates a threshold voltage parameter and a mobility parameter based on the first and second source voltages, predicts a saturated source voltage of the driving transistor based on the threshold voltage parameter and the mobility parameter, and calculates a threshold voltage of the driving transistor based on the saturated source voltage.
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公开(公告)号：US20210407399A1
公开(公告)日：2021-12-30
申请号：US17246430
申请日：2021-04-30
发明人： TAEHOON KIM , SOON-DONG KIM , JAEKEUN LIM , JOON-CHUL GOH , BONGHYUN YOU
IPC分类号： G09G3/3225 , H01L27/32
摘要： A display device includes: a first partial emission driver configured to provide first emission control signals to a first partial panel area of the display panel, and a second partial emission driver configured to provide second emission control signals to a second partial panel area of the display panel; and a power management block configured to: provide a first voltage and a second voltage to the emission driver, in response to the first partial emission driver generating the first emission control signals; and provide a third voltage and a fourth voltage to the emission driver in response to the second partial emission driver generating the second emission control signals; and an emission control block configured to receive the first voltage and the second voltage from the power management block and to provide a first clock signal and a second clock signal to the emission driver.
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公开(公告)号：US20140204104A1
公开(公告)日：2014-07-24
申请号：US13925593
申请日：2013-06-24
发明人： YONGJUN JANG , Nam-Gon CHOI , Geunjeong PARK , Hyundae LEE , CHEOLWOO PARK , Jeong-hun SO , BONGHYUN YOU , YUN KI BAEK , Kyoung Ho LIM
CPC分类号： G09G3/3648 , G09G3/20 , G09G5/363 , G09G2300/0426 , G09G2330/028 , G09G2360/12
摘要： A display apparatus includes pixels connected to gate lines and data lines, a gate driver configure to drive the gate lines, a data driver including a plurality of data driving parts configured to drive the data lines. The control board includes a processor that outputs an image signal and a control signal and a timing controller that outputs a first control signal to control the gate driver and a second control signal and a data signal to control the data driver in response to the image signal and the control signal.
摘要翻译： 显示装置包括连接到栅极线和数据线的像素，配置为驱动栅极线的栅极驱动器，包括被配置为驱动数据线的多个数据驱动部分的数据驱动器。 控制板包括输出图像信号和控制信号的处理器和输出第一控制信号以控制栅极驱动器的定时控制器，以及响应于图像信号的第二控制信号和数据信号来控制数据驱动器 和控制信号。
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公开(公告)号：US20230252947A1
公开(公告)日：2023-08-10
申请号：US18135152
申请日：2023-04-15
发明人： JEONKYOO KIM , SOO YEON LEE , MANSEUNG CHO , KYEONG SOO KANG , JUNHEE MOON , BONGHYUN YOU , JIN KYU LEE
IPC分类号： G09G3/3291 , G09G3/3266
CPC分类号： G09G3/3291 , G09G3/3266 , G09G2310/08
摘要： A display device includes a sensing circuit and a controller which selects a pixel row in a frame period. A vertical blank period of the frame period includes a sensing time in which the sensing circuit performs a sensing operation for the selected pixel row. The sensing circuit measures a first source voltage of a driving transistor of a pixel in the selected pixel row at a first time point of the sensing time, and measures a second source voltage of the driving transistor at a second time point of the sensing time. The controller calculates a threshold voltage parameter and a mobility parameter based on the first and second source voltages, predicts a saturated source voltage of the driving transistor based on the threshold voltage parameter and the mobility parameter, and calculates a threshold voltage of the driving transistor based on the saturated source voltage.
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公开(公告)号：US20220020303A1
公开(公告)日：2022-01-20
申请号：US17231388
申请日：2021-04-15
发明人： SANGAN KWON , JINOH KWAG , SOON-DONG KIM , TAEHOON KIM , HUI NAM , BONGHYUN YOU , EUN SIL YUN , CHANGNOH YOON
IPC分类号： G09G3/00 , G09G3/3275 , G09G3/3266 , G09G5/14
摘要： A display device includes a driving controller which provides a first start signal and a second start signal corresponding to an operation mode to a scan driving circuit. The scan driving circuit includes a first scan driving circuit having first dummy driving stages and first driving stages which sequentially drive scan lines corresponding to a first display region among a plurality of scan lines in synchronization with the first start signal and a second scan driving circuit having second dummy driving stages and second driving stages which sequentially drive scan lines corresponding to a second display region among the plurality of scan lines in synchronization with the second start signal. The first dummy driving stages are disposed on a first side surface of the display panel and the second dummy driving stages are disposed on a second side surface of the display panel.
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公开(公告)号：US20210304680A1
公开(公告)日：2021-09-30
申请号：US17143191
申请日：2021-01-07
发明人： SEHYUK PARK , HONGSOO KIM , JINYOUNG ROH , BONGHYUN YOU , HYOJIN LEE , JAEKEUN LIM
IPC分类号： G09G3/3266 , G09G3/3275
摘要： A display apparatus includes a display panel, a gate driver, a data driver, a driving controller and a power voltage generator. The display panel displays an image based on input image data. The gate driver outputs a gate signal to a gate line. The data driver outputs a data voltage to a data line. The driving controller drives display areas of the display panel in different driving frequencies. The power voltage generator outputs a data power voltage to the data driver. The driving controller outputs an output data enable signal including a writing period having an active signal and a holding period having an inactive signal for the respective display areas. The power voltage generator generates the data power voltage having a high power voltage level during the writing period and a low power voltage level in at least a portion of the holding period.
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公开(公告)号：US20180096647A1
公开(公告)日：2018-04-05
申请号：US15702868
申请日：2017-09-13
发明人： BONGHYUN YOU , Mun-San Park , Jai-Hyun Koh , Jaehoon Lee
摘要： A display system includes a display apparatus and a pivot performing part. The display apparatus includes a display panel configured to display an image and including a gate line and a data line, a gate driving part configured to output a gate signal to the gate line, and a data driving part configured to output a data signal to the data line. The pivot performing part is configured to receive, from the display apparatus, a pivot request data for performing a pivot function which rotates the image, and is to perform the pivot function on image data of the image in response to the pivot request data. A manufacturing cost of a display apparatus may be decreased, and a delay time of an image display may be decreased.
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公开(公告)号：US20140055503A1
公开(公告)日：2014-02-27
申请号：US13911933
申请日：2013-06-06
发明人： MEEHYE JUNG , Sang-Uk LIM , JaeSung BAE , BONGHYUN YOU
CPC分类号： G09G5/10 , G09G3/3607 , G09G3/3614 , G09G3/3648 , G09G3/3659 , G09G3/3688 , G09G2300/0447 , G09G2320/0233
摘要： A display apparatus includes a plurality of pixels, each of the pixels including a high pixel and a low pixel, a first data driver disposed on a first side of the display panel and applying first data voltages to the high pixels through first data lines, a second data driver disposed on a second side opposite the first side of the display panel and applying second data voltages to the low pixels through second data lines, and a first gate driver formed on a third side of the display panel between the first side and the second side, and sequentially applying gate signals to the plurality of pixels connected to gate lines. The first data voltages are sequentially supplied to the high pixels from the first side of the display panel and the second data voltages are sequentially supplied to the low pixels from the second side of the display.
摘要翻译： 显示装置包括多个像素，每个像素包括高像素和低像素，第一数据驱动器，其布置在显示面板的第一侧上，并且通过第一数据线将第一数据电压施加到高像素; 第二数据驱动器，其布置在与显示面板的第一侧相对的第二侧上，并且通过第二数据线将第二数据电压施加到低像素;以及第一栅极驱动器，其形成在显示面板的第一侧和第二侧之间 并且向连接到栅极线的多个像素顺序施加栅极信号。 第一数据电压从显示面板的第一侧依次提供给高像素，并且第二数据电压从显示器的第二侧依次提供给低像素。
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公开(公告)号：US20220223114A1
公开(公告)日：2022-07-14
申请号：US17470518
申请日：2021-09-09
发明人： HYUNSEUK YOO , BONGHYUN YOU , KYUNG-WOO KIM , SEOKHA HONG
摘要： A tiled display device includes a plurality of display panels coupled to each other, where each of the plurality of display panels includes an edge region adjacent to a boundary line between the plurality of display panels, and a panel driver which multiplies input gray levels of input image data for the plurality of display panels by an adaptive gain, generates boundary compensated image data by adding boundary compensation gray levels to the input gray levels multiplied by the adaptive gain for the edge region, and drives the plurality of display panels based on the boundary compensated image data. The adaptive gain is gradually decreased over a plurality of frame periods in a case where a sum of each of the input gray levels for the edge region and a corresponding one of the boundary compensation gray levels exceeds a maximum gray level.
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