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公开(公告)号:US20240071292A1
公开(公告)日:2024-02-29
申请号:US18111887
申请日:2023-02-21
发明人: Keun Oh KANG , Dae Sik Lee , Si Duk Sung , Sang Hyun Lee , Song Yi Han
IPC分类号: G09G3/32
CPC分类号: G09G3/32 , G09G2310/08 , G09G2330/045
摘要: A display device includes: a display panel; a driving voltage generator; a power voltage generator; an input voltage generator; and a timing controller. The display panel is provided with a pixel configured to emit light by using a driving voltage. The driving voltage generator is configured to supply the driving voltage to the pixel. The power voltage generator is configured to generate power voltages for driving of the display panel by using an input voltage, and generating an input voltage sensing value by sensing the input voltage. The input voltage generator is configured to supply the input voltage to the power voltage generator. The timing controller is configured to control an operation of at least one of the driving voltage generator, the power voltage generator, and the input voltage generator according to the input voltage sensing value.
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公开(公告)号:US11837131B2
公开(公告)日:2023-12-05
申请号:US17081427
申请日:2020-10-27
发明人: Si Duk Sung , Dae Sik Lee , Sang Hyun Lee
IPC分类号: G09G3/3208 , G09G3/20
CPC分类号: G09G3/20 , G09G2300/043 , G09G2300/0842 , G09G2310/06 , G09G2330/022
摘要: A display device includes a display panel including a plurality of pixels, a scan driver which supplies scan signals and sensing control signals to scan lines and sensing control lines, based on a clock signal, a power manager which applies initialization power to initialization lines, a sensor which senses threshold voltages of driving transistors, a detector which detects an error of the initialization lines and outputs line information indicating an initialization line having the error, a timing controller which changes a sensed threshold voltage using the initialization line having the error and generates image data with reference to a changed threshold voltage, and a data driver which supplies a data signal corresponding to the image data to data lines.
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公开(公告)号:US11710762B2
公开(公告)日:2023-07-25
申请号:US17324618
申请日:2021-05-19
发明人: Woong Sik Kim , Ji Hyun Kim , Sang Hyun Lee , Sae Hee Han
IPC分类号: H01L27/15 , H01L25/075 , H01L25/18 , H01L27/12 , H01L23/00
CPC分类号: H01L27/156 , H01L25/0753 , H01L25/18 , H01L27/124 , H01L24/24 , H01L24/32 , H01L24/73 , H01L24/92 , H01L2224/24226 , H01L2224/32225 , H01L2224/73217 , H01L2224/92144
摘要: A display device includes a substrate including a display area and a non-display area, and a first surface and a second surface; pixels disposed on the first surface; a signal line disposed on the first surface, and electrically connected to each pixel; a cushion layer disposed on the pixels and the signal line, and including at least one contact hole that exposes a portion of the signal line; a connector disposed in the at least one contact hole and electrically connected to the signal line; and a driver disposed on the cushion layer and electrically connected to the pixels through the connector. Each pixel includes a display element layer disposed on the first surface and including at least one light emitting element, and a pixel circuit layer disposed on the display element layer and including at least one transistor electrically connected to the at least one light emitting element.
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公开(公告)号:US11475698B2
公开(公告)日:2022-10-18
申请号:US17099527
申请日:2020-11-16
发明人: Jeung Soo Kim , Tae Eun Kim , Youn Bum Lee , Young Kwang Kim , Tae Hun Kim , Sang Hyun Lee
IPC分类号: G06V40/13 , H01L27/32 , H01L27/146
摘要: A display device including a substrate including a display region and a non-display region disposed at one side of the display region, the display region includes first and second areas adjacent to each other; a display unit disposed on a front surface of the substrate, the display unit including a plurality of pixels for displaying an image; a cushion layer disposed on a rear surface of the substrate, the cushion layer including a first opening portion corresponding to the first area; a fingerprint sensor provided in the first opening portion of the cushion layer, the fingerprint sensor sensing a fingerprint of a user; and a first light-blocking layer disposed on a rear surface of the substrate, the first light-blocking layer covering at least part of the cushion layer and a lower surface of the fingerprint sensor.
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5.
公开(公告)号:US11288996B2
公开(公告)日:2022-03-29
申请号:US17201384
申请日:2021-03-15
发明人: Sang Hyun Lee , Myeong Su Kim , Bo Yeon Kim
IPC分类号: G09G3/20
摘要: A display device includes a display unit including a plurality of pixels, a scan driver applying a scan signal to a plurality of scan lines, a data driver applying a data signal to a plurality of data lines, and a power supply unit supplying a driving voltage to at least one among the display unit, the scan driver, and the data driver. The power supply unit includes an inductor connected between an input terminal to which an input voltage is input and a driving voltage output terminal to which the driving voltage is output, a switch connected between the inductor and a ground, and a switch controller outputting a first ramp pulse having a first frequency at a first load of the display device and outputting a second ramp pulse having a second frequency at a second load of the display device.
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6.
公开(公告)号:US10971046B2
公开(公告)日:2021-04-06
申请号:US16511659
申请日:2019-07-15
发明人: Sang Hyun Lee , Myeong Su Kim , Bo Yeon Kim
IPC分类号: G09G3/20
摘要: A display device includes a display unit including a plurality of pixels, a scan driver applying a scan signal to a plurality of scan lines, a data driver applying a data signal to a plurality of data lines, and a power supply unit supplying a driving voltage to at least one among the display unit, the scan driver, and the data driver. The power supply unit includes an inductor connected between an input terminal to which an input voltage is input and a driving voltage output terminal to which the driving voltage is output, a switch connected between the inductor and a ground, and a switch controller outputting a first ramp pulse having a first frequency at a first load of the display device and outputting a second ramp pulse having a second frequency at a second load of the display device.
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公开(公告)号:US10049619B2
公开(公告)日:2018-08-14
申请号:US15342530
申请日:2016-11-03
发明人: Geun Hyuk Choi , Sang Hyun Lee , Hyo Chul Lee , Jae Ho Choi , Hyun Seok Hong
IPC分类号: G09G3/36 , G09G3/3266 , G09G3/3291
摘要: A display device includes a timing controller which transmits a vertical clock signal having rising edges and falling edges to a gate driver and a gate driver which receives the vertical clock signal, to generate a first gate clock signal and a first inverted gate clock signal in accordance with one of the rising edges and the falling edges of the vertical clock signal, and to generate a second gate clock signal and a second inverted gate clock signal in accordance with a remaining one of the rising edges and the falling edges of the vertical clock signal.
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8.
公开(公告)号:US12131686B2
公开(公告)日:2024-10-29
申请号:US16898439
申请日:2020-06-11
发明人: Sang Hyun Lee , Si Duk Sung , Dae-Sik Lee
IPC分类号: G09G3/32
CPC分类号: G09G3/32 , G09G2310/0205 , G09G2310/066
摘要: The current disclosure relates to a display device including a display panel including a plurality of pixels, and a plurality of gate lines and a plurality of data lines connected to the plurality of pixels, a gate driver applying a gate signal to the plurality of gate lines, a data driver applying a data signal to the plurality of data lines, and a voltage provider configured to generate a gate-on voltage that is gradually changed in one frame and a kickback voltage that is gradually changed in one frame to transmit the gate-on voltage and the kickback voltage to the gate driver.
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9.
公开(公告)号:US11721619B2
公开(公告)日:2023-08-08
申请号:US17023271
申请日:2020-09-16
发明人: BoYeon Kim , Whee-Won Lee , Myeong Su Kim , Sang Hyun Lee
IPC分类号: H01L23/498 , H01L23/00 , H10K59/131
CPC分类号: H01L23/49838 , H01L23/4985 , H01L24/16 , H10K59/131 , H01L2224/16225
摘要: A flexible circuit film includes the following elements: a base film; a first power input terminal, a second power input terminal, a first power output terminal, and a second power output terminal each disposed on the base film; an integrated circuit chip disposed between the first power input terminal and the first power output terminal and overlapping the base film; first power wiring disposed on the base film, connecting the first power input terminal to the first power output terminal, and including a first connection part; and second power wiring disposed on the base film, connecting the second power input terminal to the second power output terminal, and including a second connection part. The first connection part and the second connection part are disposed between the base film and the integrated circuit chip, overlap the integrated circuit chip, and are spaced from each other.
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公开(公告)号:US11620927B2
公开(公告)日:2023-04-04
申请号:US17460779
申请日:2021-08-30
发明人: Si Duk Sung , Dae Sik Lee , Sang Hyun Lee , Myeong Su Kim
IPC分类号: G09G3/20
摘要: A display device includes a scale factor provider, a grayscale converter, and pixels. The scale factor provider calculates an n-th scale factor based on n-th input grayscales received during an n-th frame period. The grayscale converter calculates (n+p)th output grayscales by applying the n-th scale factor to (n+p)th input grayscales received during an (n+p)th frame period in a first mode. The pixels output light to display an image based on the (n+p)th output grayscales, where n is an integer greater than 0 and p is an integer greater than 1.
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