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1.发明申请公开(公告)号：US20190294851A1
公开(公告)日：2019-09-26
申请号：US16356351
申请日：2019-03-18
Applicant: Samsung Electronics Co., Ltd.
Inventor： Dae-young CHUNG , Sang-hyun Cho , Hee-chang Hwang , Sung-mok Lee , Jong-sung Lee
Abstract: A display panel for providing sensing light to an optical fingerprint sensor and a fingerprint sensing system including the display panel are provided. A display panel according to an example embodiment includes a window glass, a phase change layerunder the window glass and delaying a phase of light, a polarizing plate under the phase change layer, a pixel layer under the polarizing plate and having a plurality of pixels each emitting light, and a substrate under the pixel layer and configured to transmit the sensing light generated by scattering light emitted from at least a part of the plurality of pixels by a fingerprint on the window glass.
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公开(公告)号：US11140346B2
公开(公告)日：2021-10-05
申请号：US15718598
申请日：2017-09-28
Applicant: Samsung Electronics Co., Ltd. , Industry-Academic Cooperation Foundation, Yonsei University
Inventor： Youngcheol Chae , Sang-hyun Cho , Min-ho Kwon , Seung-hyun Lim , Woo-jin Jo
Abstract: An analog-to-digital converter configured to convert an analog signal into a digital signal includes a first converter configured to receive an input signal of an analog type, compare the input signal with a plurality of reference signals, select one of the plurality of reference signals based on the comparison, and output an upper bit that is a portion of the digital signal based on the selected reference signal, a second converter configured to perform an oversampling operation n times based on a residue signal indicating a difference between an upper analog signal corresponding to the upper bit value and the input signal and output an intermediate bit value of the digital signal corresponding to the first to n-th oversampling signals generated respectively during the oversampling operations performed n times, and a third converter configured to output a lower bit value of the digital signal corresponding to the n-th oversampling signal.
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公开(公告)号：US20180109747A1
公开(公告)日：2018-04-19
申请号：US15718598
申请日：2017-09-28
Applicant: Samsung Electronics Co., Ltd. , Industry-Academic Cooperation Foundation, Yonsei University
Inventor： Youngcheol Chae , Sang-hyun Cho , Min-ho Kwon , Seung-hyun Lim , Woo-jin Jo
CPC classification number: H04N5/378 , H03M1/124 , H03M1/162 , H03M1/361 , H03M1/38 , H03M1/56 , H03M3/46 , H03M3/494 , H04N5/37455
Abstract: An analog-to-digital converter configured to convert an analog signal into a digital signal includes a first converter configured to receive an input signal of an analog type, compare the input signal with a plurality of reference signals, select one of the plurality of reference signals based on the comparison, and output an upper bit that is a portion of the digital signal based on the selected reference signal, a second converter configured to perform an oversampling operation n times based on a residue signal indicating a difference between an upper analog signal corresponding to the upper bit value and the input signal and output an intermediate bit value of the digital signal corresponding to the first to n-th oversampling signals generated respectively during the oversampling operations performed n times, and a third converter configured to output a lower bit value of the digital signal corresponding to the n-th oversampling signal.
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