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公开(公告)号：US11705046B2
公开(公告)日：2023-07-18
申请号：US17471997
申请日：2021-09-10
发明人： Young Soo Hwang , Joon Chul Goh , Oh Jo Kwon , Ki Duk Kim , Jeong Min Kim , Bong Hyun You , Hyung Min Lee , Seung Hun Choi
IPC分类号： G09G3/20
CPC分类号： G09G3/2092 , G09G2310/027 , G09G2310/0291 , G09G2310/0294 , G09G2310/08
摘要： A data driver includes a multi-channel sample/hold circuit electrically connected between a digital-to-analog converter and a data buffer. The multi-channel sample/hold circuit includes a first sample/hold circuit connected to a first channel and a second sample/hold circuit connected to a second channel. The first sample/hold circuit performs a first drive operation and a second drive operation. The first drive operation includes sampling a data voltage as a buffer input voltage and maintaining the buffer input voltage during an nth horizontal time. The second drive operation includes outputting the buffer input voltage to an output terminal of the buffer during an (n+1)th horizontal time. The second sample/hold circuit performs the second drive operation during the nth horizontal time and performs the first drive operation during the (n+1)th horizontal time.
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公开(公告)号：US20240036349A1
公开(公告)日：2024-02-01
申请号：US18317028
申请日：2023-05-12
发明人： Young Soo Hwang , Su Bin Jung
摘要： A stereoscopic image display device includes a display panel that includes pixels, a polarization controller that generates a first output voltage and a second output voltage, and a polarization control layer that controls a path of light emitted by the display panel, based on the first output voltage and the second output voltage. The first output voltage has a first voltage level in a first mode, and a second voltage level that differs from the first voltage level in a second mode. The second output voltage has the first voltage level in the first mode, and has the first voltage level or a third voltage level that differs from the first and second voltage levels in the second mode.
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公开(公告)号：US20180107069A1
公开(公告)日：2018-04-19
申请号：US15721206
申请日：2017-09-29
发明人： DONG GYU LEE , Jae Woong Kang , Seung Hwan Park , Cheol Woo Park , Yong Jun Jang , Young Soo Hwang
IPC分类号： G02F1/1335 , G02F1/1333 , G02F1/1368
CPC分类号： G02F1/133617 , G02F1/13338 , G02F1/133512 , G02F1/133514 , G02F1/133555 , G02F1/1368 , G02F2001/133614 , G02F2201/58 , G02F2202/36
摘要： A display device includes a first substrate including a plurality of pixel areas and a peripheral area disposed adjacent to the plurality of pixel areas. A second substrate faces the first substrate. A liquid crystal layer is disposed between the first substrate and the second substrate. A backlight unit provides light to the liquid crystal layer. A color conversion layer is disposed between the liquid crystal layer and the second substrate and includes a plurality of sub-color conversion units converting and emitting the light provided by the backlight unit into light of different predetermined colors. An optical sensor is disposed within the peripheral area. The optical sensor detects the light emitted from the plurality of sub-color conversion units and generates an optical signal corresponding thereto.
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公开(公告)号：US12100359B2
公开(公告)日：2024-09-24
申请号：US17881134
申请日：2022-08-04
发明人： Dong Joon Kwag , Young Soo Hwang , Hyung Jin Kim
IPC分类号： G09G3/3291 , G09G3/3266
CPC分类号： G09G3/3291 , G09G3/3266 , G09G2310/0278 , G09G2310/08 , G09G2320/0271
摘要： A display device includes a display panel including sub-pixels arranged in an image display region of the display panel to display an image, a data driver that applies a data voltage to data lines, a scan signal driver that applies scan signals to scan signal lines, a data compensator that analyzes image data received from an outside to divide at least one deterioration region and deterioration peripheral regions, and compares and analyzes image data of the at least one deterioration region and the deterioration peripheral regions to compensate or modulate the image data of the at least one deterioration region, and a timing controller that controls the data driver and the scan signal driver to display compensation data including the compensated or modulated image data as an image.
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公开(公告)号：US11282427B2
公开(公告)日：2022-03-22
申请号：US17007543
申请日：2020-08-31
发明人： Ha Neul Kim , Ho Cheol Kang , Dae Gwang Jang , Young Soo Hwang
IPC分类号： G09G3/20
摘要： A display device includes pixels coupled to scan lines, control lines, data lines, and sensing lines, a scan driver for supplying a scan signal to the scan lines and supplying a control signal to the control lines, a data driver for supplying one of an image data signal and a sensing data signal to the data lines, and a sensing circuit including an analog-digital converter (“ADC”) which converts a sensing value supplied through the sensing lines into a current code in a digital form, the sensing circuit correcting the current code by reflecting a conversion characteristic of the ADC, the sensing circuit sensing characteristics of the driving transistor based on the corrected current code.
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公开(公告)号：US11017730B2
公开(公告)日：2021-05-25
申请号：US16821761
申请日：2020-03-17
发明人： Young Soo Hwang , Ji Woong Kim
IPC分类号： G09G3/3291 , G09G3/3266
摘要： A display device including multiple displays is provided. The display device includes a first display including first pixels; a second display including second pixels; a first driver configured to drive the first display; a second driver configured to drive the second display; a controller configured to control the first and second drivers; a first power supply configured to supply first power to the first and second displays; and a second power supply configured to supply second power to the first and second displays. The second power supply includes a first voltage source configured to generate a first voltage; a second voltage source configured to generate a second voltage; a first switch configured to couple the first display to any one of the first and second voltage sources; and a second switch configured to couple the second display to one of the first and second voltage sources.
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公开(公告)号：US11830416B2
公开(公告)日：2023-11-28
申请号：US17602525
申请日：2020-06-12
发明人： Young Soo Hwang , Hideo Yoshimura
CPC分类号： G09G3/32 , G09G3/2007 , G09G2300/0842 , G09G2310/08 , G09G2320/0233 , G09G2330/021
摘要： A method of driving a display device, includes: supplying a first sensing data signal corresponding to a first grayscale, first power having a first sensing voltage, and a reference voltage to a pixel during a first sensing period; sensing a first sensing current, generated based on the first sensing voltage, from the pixel during the first sensing period; supplying a second sensing data signal corresponding to a second grayscale and different from the first sensing data signal, the first power having a second sensing voltage, and the reference voltage to the pixel during a second sensing period; sensing a second sensing current, generated based on the second sensing voltage different from the first sensing voltage, from the pixel during the second sensing period; and calculating characteristics of a driving transistor of the pixel using the first sensing current and the second sensing current.
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公开(公告)号：US11243444B2
公开(公告)日：2022-02-08
申请号：US16663565
申请日：2019-10-25
发明人： Young Soo Hwang
IPC分类号： G02F1/1362
摘要： A display device includes a display panel, a timing controller, a first source driver, and a second source driver. The display panel includes a first pixel, a second pixel and a plurality of data lines included in a pixel column. A first data line is connected to the first pixel, and a second data line is connected to the second pixel. The timing controller generates a pattern inversion control signal by detecting a predetermined image pattern from input data. The first source driver is connected to the first and third data lines, and replaces a first channel data corresponding to the first data line with a third channel data corresponding to the third data line in response to the pattern inversion control signal. Similarly, the second source driver replaces a second channel data corresponding to the second data line with a fourth channel data corresponding to the fourth data line.
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公开(公告)号：US10997935B2
公开(公告)日：2021-05-04
申请号：US15668010
申请日：2017-08-03
发明人： Jae Woong Kang , Seung Hwan Park , Cheol Woo Park , Dong Gyu Lee , Yong Jun Jang , Young Soo Hwang
IPC分类号： G09G5/02 , G09G3/36 , G02F1/1335 , G02F1/1343 , G09G3/34 , G09G3/20 , G02F1/1362 , G02F1/13357
摘要： A display device including a first substrate, a color conversion layer on the first substrate and containing a wavelength conversion material, a first conductive polarizer on the color conversion layer, and a timing controller electrically connected to the first conductive polarizer. The timing controller may measure a resistance of the first conductive polarizer to generate a compensation signal based on the measured resistance.
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公开(公告)号：US11875733B2
公开(公告)日：2024-01-16
申请号：US17602525
申请日：2020-06-12
发明人： Young Soo Hwang , Hideo Yoshimura
CPC分类号： G09G3/32 , G09G3/2007 , G09G2300/0842 , G09G2310/08 , G09G2320/0233 , G09G2330/021
摘要： A method of driving a display device, includes: supplying a first sensing data signal corresponding to a first grayscale, first power having a first sensing voltage, and a reference voltage to a pixel during a first sensing period; sensing a first sensing current, generated based on the first sensing voltage, from the pixel during the first sensing period; supplying a second sensing data signal corresponding to a second grayscale and different from the first sensing data signal, the first power having a second sensing voltage, and the reference voltage to the pixel during a second sensing period; sensing a second sensing current, generated based on the second sensing voltage different from the first sensing voltage, from the pixel during the second sensing period; and calculating characteristics of a driving transistor of the pixel using the first sensing current and the second sensing current.
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