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公开(公告)号：US20210073507A1
公开(公告)日：2021-03-11
申请号：US16992801
申请日：2020-08-13
发明人： Yun Ho Kim , Keum Dong Jung , Jin Oh Kwag , Won Sang Park , Deok Hwa Woo , Bong Hyun You , Chul Kim , Seung Hyun Moon , Jun Hee Moon , Hee Chul Hwang
摘要： Provided is a display device including a substrate including a fingerprint area. The fingerprint area includes a first area and a second area. A light-emitting element layer is disposed on the substrate. The light-emitting element layer includes light-emitting elements. A sensor layer is disposed on the substrate, the sensor layer including photosensors. The light-emitting elements include a first light-emitting element arranged in the first area and a second light-emitting element arranged in the second area. During a fingerprint sensing period, the first light-emitting element emits light and the second light-emitting element does not emit light.
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公开(公告)号：US20230397472A1
公开(公告)日：2023-12-07
申请号：US18451053
申请日：2023-08-16
发明人： YUN HO KIM , Keum Dong Jung , Jin Oh Kwag , Won Sang Park , Deok Hwa Woo , Bong Hyun You , Chul Kim , Seung Hyun Moon , Jun Hee Moon , Hee Chul Hwang
CPC分类号： H10K59/65 , G06V40/1394 , G06V40/1318 , G06V40/1388 , H10K59/12 , H01L27/14678
摘要： Provided is a display device including a substrate including a fingerprint area. The fingerprint area includes a first area and a second area. A light-emitting element layer is disposed on the substrate. The light-emitting element layer includes light-emitting elements. A sensor layer is disposed on the substrate, the sensor layer including photosensors. The light-emitting elements include a first light-emitting element arranged in the first area and a second light-emitting element arranged in the second area. During a fingerprint sensing period, the first light-emitting element emits light and the second light-emitting element does not emit light.
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公开(公告)号：US11488412B2
公开(公告)日：2022-11-01
申请号：US17392179
申请日：2021-08-02
发明人： Hyun Dae Lee , Seung Hyun Moon , Dong Wook Yang , Hee Chul Hwang , Deok Hwa Woo , Young Eun Lee
摘要： A fingerprint sensor includes a substrate, a light blocking layer that is on a first surface of the substrate and includes openings in a light blocking mask, and a sensor layer that is on a second surface of the substrate and includes photo sensors. A fingerprint sensing method of the fingerprint sensor includes: storing a calibration image; generating an original image, based on sensing signals from the photo sensors; performing calibration on the original image by utilizing the calibration image; and detecting a fingerprint, based on the calibrated image. The calibration image is generated by synthetizing valid regions extracted from an original calibration image corresponding to the original image.
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公开(公告)号：US20210117639A1
公开(公告)日：2021-04-22
申请号：US16930321
申请日：2020-07-16
发明人： Dong Wook YANG , Hyun Dae Lee , Seung Hyun Moon , Young Eun Lee , Hee Chul Hwang
IPC分类号： G06K9/00
摘要： The display device comprises: a display panel displaying an image, a light blocking layer disposed under the display panel and comprising a plurality of holes, a fingerprint sensing layer disposed under the light blocking layer and comprising a plurality of fingerprint sensors receiving reflected light passing through the plurality of hole and generating a sensing signal, and a sensor driver controlling operations of the plurality of fingerprint sensors. The sensor driver compares fingerprint data generated based on a sensing signal generated from reflected light by a user's fingerprint with prestored reference data to generate a fingerprint image.
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15.发明申请公开(公告)号：US20210055826A1
公开(公告)日：2021-02-25
申请号：US16997871
申请日：2020-08-19
发明人： Won Sang PARK , Jin Oh Kwag , II Nam Kim , Ji Hun Ryu , Seung Hyun Moon , Bong Hyun You , Jong Hyun Lee , Hee Chul Hwang
摘要： A display device includes a fingerprint sensor including a first layer having at least one photo sensor to generate a fingerprint image corresponding to reflected light from a fingerprint contact surface, light emitting elements to transmit light reflected by the fingerprint, and a second layer including pin holes to allow reflected light to be incident upon the at least one photo sensor; and fingerprint detector to receive the fingerprint image from the fingerprint sensor, to extract a first image corresponding to a first region of the fingerprint and a second image corresponding to a second region of the fingerprint, to compare the first and second images to determine similarity, and to perform fingerprint authentication, based on similarity determination, where the fingerprint first region is in contact with the fingerprint contact surface and the fingerprint second region is not in contact with the fingerprint contact surface.
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公开(公告)号：US09825614B2
公开(公告)日：2017-11-21
申请号：US14839623
申请日：2015-08-28
发明人： Hassan Kamal , Hee Chul Hwang
CPC分类号： H03H17/0248 , H03H17/0227 , H03H17/06
摘要： A common sub-expression elimination method for simplifying hardware logic of a hardware filter circuit by eliminating a common sub-expression included in a plurality of sub-expressions is provided. Each of the sub-expressions includes a corresponding two or more of inputs constituting a plurality of coefficients used by the hardware filter circuit. The method is implemented on a computing device and includes: identifying for each coefficient of the plurality of coefficients, a combination of the inputs constituting the coefficient; counting occurrences of the sub-expressions in each of the coefficients; identifying one or more of the sub-expressions having a maximum one of the counts and including the corresponding two or more of the inputs; selecting one of the one or more of the sub-expressions as the common sub-expression; eliminating the common sub-expression; and repeating these steps to eliminate more of the sub-expressions common to multiple ones of the coefficients.
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公开(公告)号：US20160142042A1
公开(公告)日：2016-05-19
申请号：US14839623
申请日：2015-08-28
发明人： Hassan Kamal , Hee Chul Hwang
CPC分类号： H03H17/0248 , H03H17/0227 , H03H17/06
摘要： A common sub-expression elimination method for simplifying hardware logic of a hardware filter circuit by eliminating a common sub-expression included in a plurality of sub-expressions is provided. Each of the sub-expressions includes a corresponding two or more of inputs constituting a plurality of coefficients used by the hardware filter circuit. The method is implemented on a computing device and includes: identifying for each coefficient of the plurality of coefficients, a combination of the inputs constituting the coefficient; counting occurrences of the sub-expressions in each of the coefficients; identifying one or more of the sub-expressions having a maximum one of the counts and including the corresponding two or more of the inputs; selecting one of the one or more of the sub-expressions as the common sub-expression; eliminating the common sub-expression; and repeating these steps to eliminate more of the sub-expressions common to multiple ones of the coefficients.
摘要翻译： 提供了通过消除包含在多个子表达式中的公共子表达来简化硬件滤波器电路的硬件逻辑的公共子表达式消除方法。 每个子表达式包括构成由硬件滤波器电路使用的多个系数的相应的两个或更多个输入。 该方法在计算设备上实现，包括：识别多个系数中的每个系数，构成系数的输入的组合; 计算每个系数中子表达式的出现次数; 识别具有所述计数中的最大一个的一个或多个子表达，并且包括相应的两个或更多个输入; 选择一个或多个子表达式中的一个作为公共子表达式; 消除共同的子表达式; 并重复这些步骤以消除多个系数中常见的更多子表达式。
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