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公开(公告)号：US11308877B2
公开(公告)日：2022-04-19
申请号：US16953668
申请日：2020-11-20
发明人： Jeong Lee , Sung Ha Kim , Yong Sung Ahn , Kyung Min Shin , Jung Ryeol Park
IPC分类号： G09G3/3233
摘要： Provided are a display driving device capable of accurately detecting characteristics of pixels of a display panel regardless of an offset of an amplifier, and a display device including the same. The display device includes a display panel including pixels and a display driving device including a sense circuit configured to detect pixel signals from the pixels. The sense circuit includes sense amplifiers configured to provide the first reference voltage to the pixels so that the pixels are programmed using a first reference voltage in a programming mode.
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公开(公告)号：US11586318B2
公开(公告)日：2023-02-21
申请号：US17128919
申请日：2020-12-21
发明人： Yong Sung Ahn
IPC分类号： G06F3/041 , G09G3/3258 , G06F3/044
摘要： An embodiment may integrate a data driving circuit, a pixel sensing circuit, and a touch sensing circuit into one integrated circuit, thereby simplifying interfaces and wires between circuits and reducing the number of components.
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公开(公告)号：US11308836B2
公开(公告)日：2022-04-19
申请号：US16717725
申请日：2019-12-17
发明人： Yong Sung Ahn
IPC分类号： G09G3/3275 , G09G3/20
摘要： A source driving circuit includes a first source channel configured to output a first source driving signal to a display panel; a second source channel configured to output a second source driving signal to the display panel; a first gamma circuit configured to output first gamma values to the first source channel; and a second gamma circuit configured to output second gamma values to the second source channel. The first gamma circuit may set the first gamma values to values corresponding to red or green depending on a first switching operation of a first demultiplexer of the display panel corresponding to the first source channel. The second gamma circuit may set the second gamma values to values corresponding to blue or green depending on a second switching operation of a second demultiplexer of the display panel corresponding to the second source channel.
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公开(公告)号：US10964249B2
公开(公告)日：2021-03-30
申请号：US16717641
申请日：2019-12-17
发明人： Yong Sung Ahn
IPC分类号： G09G3/20
摘要： A source driving circuit including source channels each of which includes a source amplifier is disclosed. The source amplifier includes an internal amplifier configured to output a first pull-up signal and a first pull-down signal in response to a first gamma signal; an output circuit configured to output a first source driving signal in response to the first pull-up signal and the first pull-down signal; and first and second switch circuits connecting the internal amplifier and the output circuit, and configured to transfer the first pull-up signal and the first pull-down signal corresponding to the first gamma signal or a second pull-up signal and a second pull-down signal corresponding to a second gamma signal of another source channel, to the output circuit.
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公开(公告)号：US12046205B2
公开(公告)日：2024-07-23
申请号：US17125553
申请日：2020-12-17
发明人： Kyung Min Shin , Sung Ha Kim , Yong Sung Ahn , Jeong Lee , Jung Ryeol Park
IPC分类号： G09G5/10 , G09G3/3233 , G09G3/3291
CPC分类号： G09G3/3291 , G09G2320/04
摘要： Disclosed are a source driver for sensing the degree of deterioration in pixels in some regions of a display panel and compensating for the deterioration in the display panel based on the sensed degree, by considering a characteristic in which pixels included in each display panel similarly deteriorate, and a display device including the same. The display device may include a display panel including pixels, a sensing circuit configured to provide sensing data by sensing the degree of deterioration in pixels in at least one first region of the display panel, and a compensation circuit configured to calculate an amount of compensation of each of the pixels in the first region using the sensing data and compensate for the deterioration in the pixels in the first region and pixels in a second region whose degree of deterioration is not sensed, based on the amount of compensation.
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公开(公告)号：US11335274B2
公开(公告)日：2022-05-17
申请号：US17020070
申请日：2020-09-14
发明人： Jeong Lee , Kyung Min Shin , Yong Sung Ahn , Gi Woong Shin
IPC分类号： G09G3/3291 , G01K7/01 , G01K19/00
摘要： An embodiment relates to a temperature sensor having a correction function and is able to reduce errors in measurement by the temperature sensor by calibrating a correlation between temperature and voltage.
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公开(公告)号：US10510311B2
公开(公告)日：2019-12-17
申请号：US15839589
申请日：2017-12-12
发明人： Yong Sung Ahn , Jeong Lee , Jun Tak Jeon
IPC分类号： G09G3/36 , G02F1/1335 , G02F1/1343 , G02F1/1333 , G02F1/1368 , G06F3/041 , G06F3/044 , G02F1/1362 , G09G3/00
摘要： The present disclosure provides a technique for supplying different voltages to a plurality of adjacent electrodes, sensing a voltage formed on each electrode, and diagnosing a short-circuit failure of each electrode.
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公开(公告)号：US10175823B2
公开(公告)日：2019-01-08
申请号：US15605691
申请日：2017-05-25
发明人： Yong Sung Ahn , Jeong Lee , Jun Tak Jeon
摘要： Provided is a technology for generating a sensor-driving waveform using a waveform generator, generating a sensor-driving signal and a sensor-driving auxiliary signal according to the sensor-driving waveform, and providing the same to a sensor electrode and adjacent electrodes.
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公开(公告)号：US09916055B2
公开(公告)日：2018-03-13
申请号：US15096858
申请日：2016-04-12
发明人： Yong Sung Ahn , Jung Min Choi
CPC分类号： G06F3/044 , G06F3/0416
摘要： The present disclosure provides a technology related to a multi-chip touch system. In the multi-chip system, in a case in which two touch ICs share one receiving electrode and an even number of receiving electrodes are connected to one touch IC, when another touch IC senses the shared receiving electrode, the one touch IC does not connect another receiving electrode, which that is disposed at the outermost portion, as well as the shared receiving electrode.
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公开(公告)号：US20210150981A1
公开(公告)日：2021-05-20
申请号：US16953668
申请日：2020-11-20
发明人： Jeong Lee , Sung Ha Kim , Yong Sung Ahn , Kyung Min Shin , Jung Ryeol Park
IPC分类号： G09G3/3233
摘要： Provided are a display driving device capable of accurately detecting characteristics of pixels of a display panel regardless of an offset of an amplifier, and a display device including the same. The display device includes a display panel including pixels and a display driving device including a sense circuit configured to detect pixel signals from the pixels. The sense circuit includes sense amplifiers configured to provide the first reference voltage to the pixels so that the pixels are programmed using a first reference voltage in a programming mode.
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