Display device having analog-to-digital converter for compensating based on subpixel characteristic
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United States of America Patent
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Jan 2, 2024
Grant Date -
Mar 16, 2023
app pub date -
Jul 29, 2022
filing date -
Sep 15, 2021
priority date (Note) -
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Abstract
A display device includes a reference voltage line electrically connected with a first node and receiving a sensing voltage reflecting a characteristic value of at least one subpixel and an analog-to-digital converter including a second node, receiving the sensing voltage, and outputting a digital value corresponding to the sensing voltage, wherein a voltage level of a driving reference voltage applied to the first node and a voltage level of an analog-to-digital converting reference voltage applied to the second node are changed depending on a level of the sensing voltage, thereby compensating for changes in the characteristic values of subpixels even when abnormal subpixels for which appropriate compensation for changes in characteristic values of subpixels is limited.
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