公开(公告)号：US20230268933A1

公开(公告)日：2023-08-24

申请号：US18095709

申请日：2023-01-11

Applicant: Samsung Display Co., Ltd.

Inventor： Yasuhiko SHINKAJI ,  Masahiko YOSHIYAMA

IPC: H03M13/25 ,  H03M13/37

CPC classification number: H03M13/251 ,  H03M13/3715

Abstract: A data processing device includes an average correction processor that corrects input data based on an average value of the input data and outputs average correction data, and reversibly encodes and decodes the average value to generate a decoded average value, an irreversible encoder/decoder that encodes and decodes the average correction data and outputs first and second decoded data, a binary predictor that predicts a magnitude of a restoration error included in the second decoded data based on the first decoded data and the decoded average value and outputs a prediction result as binary data, an error estimator that outputs an estimation error based on the first decoded data, the second decoded data, and the decoded average value, and an operation circuit that outputs output data based on the second decoded data, the binary data, the estimation error, and the decoded average value.

公开(公告)号：US20240242322A1

公开(公告)日：2024-07-18

申请号：US18384914

申请日：2023-10-30

Applicant: Samsung Display Co., LTD.

Inventor： Masahiko YOSHIYAMA ,  Yasuhiko SHINKAJI

IPC: G06T7/00 ,  H04N23/50 ,  H04N23/76 ,  H04N23/81

CPC classification number: G06T7/0002 ,  H04N23/50 ,  H04N23/76 ,  H04N23/81 ,  H01L27/14678

Abstract: An electronic device includes a display module, an optical sensing module, a protective film, and a control module. The display module includes a display area, through which an image is displayed, and a peripheral area defined adjacent to the display area. The optical sensing module is disposed under the display module and receives an optical signal via the display module. The protective film is disposed on the display module. The control module includes a blur-measuring unit which compares a first image obtained using the optical sensing module before the protective film is attached to the display module with a second image obtained using the optical sensing module after the protective film is attached to the display module to calculate blur information included in the second image.

公开(公告)号：US20210224513A1

公开(公告)日：2021-07-22

申请号：US16951602

申请日：2020-11-18

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Masahiko YOSHIYAMA

IPC: G06K9/00

Abstract: A fingerprint authentication method and device, display device, and biometric security apparatus include: a fingerprint sensor; a minutiae extraction circuit connected to the fingerprint sensor; a minutiae storage circuit connected to the minutiae extraction circuit; and a minutiae match circuit connected to the minutiae extraction circuit and the minutiae storage circuit, wherein the minutiae match circuit includes a class-wise comparator having a first input connected to the minutiae extraction circuit for receiving sensed fingerprint minutiae from each class of a plurality of classes, a second input connected to the minutiae storage circuit for receiving stored fingerprint minutiae belonging to each same class of the plurality of classes, respectively, and an output providing a fingerprint authentication signal responsive to the class-wise comparator.

公开(公告)号：US20190172414A1

公开(公告)日：2019-06-06

申请号：US16205247

申请日：2018-11-30

Applicant: Samsung Display Co., Ltd.

Inventor： Masahiko YOSHIYAMA

IPC: G09G5/02 ,  G09G5/10

Abstract: An image processor including a color converter converting a first color space of image signals to a second color space having first brightness data, first chrominance data, and second chrominance data, a brightness converter increasing a value of low brightness portion of the first brightness data, to generate second brightness data, a color variation limit unit adjusting the second brightness data with respect to the first chrominance data and the second chrominance data such that an image data converted depending on the second brightness data lie within the first color space, a blend coefficient calculator calculating a blend coefficient depending on an illuminance value, a synthesizer synthesizing the first brightness data with the third brightness data depending on a blend coefficient to generate fourth brightness data, and a signal output unit converting the fourth brightness data, the first chrominance data, and the second chrominance data to output image signals.

公开(公告)号：US20240265728A1

公开(公告)日：2024-08-08

申请号：US18380874

申请日：2023-10-17

Applicant: Samsung Display Co., LTD.

Inventor： Yasuhiko SHINKAJI ,  Masahiko YOSHIYAMA

IPC: G06V40/12 ,  G06V10/24 ,  G06V10/26 ,  G06V10/34 ,  G06V10/36 ,  G06V10/82 ,  G06V10/98

CPC classification number: G06V40/1359 ,  G06V10/242 ,  G06V10/26 ,  G06V10/34 ,  G06V10/36 ,  G06V10/82 ,  G06V10/993 ,  G06V40/1335 ,  G06V40/1376

Abstract: An electronic device includes: a display unit which displays an image; a fingerprint sensing unit that senses a fingerprint including a ridge and a valley and outputs a fingerprint sensing signal including a fingerprint image, a readout circuit which generates a fingerprint processing signal based on the fingerprint sensing signal and determines whether the fingerprint processing signal matches a stored fingerprint signal, by comparing the fingerprint processing signal with the stored fingerprint signal, and a memory connected to the readout circuit. The readout circuit includes an area division unit, an estimation unit, a first sharpening processing unit, a second sharpening processing unit, and a processing unit.

公开(公告)号：US20140168285A1

公开(公告)日：2014-06-19

申请号：US14107877

申请日：2013-12-16

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Seiki TAKAHASHI ,  Masahiko YOSHIYAMA

IPC: G09G3/20

CPC classification number: G09G5/02 ,  G09G2340/06

Abstract: An image processor includes a input converter converting an input image into linear first image data of a first color gamut; a color gamut converter converting first image data into second image data expressing a second color gamut narrower than the first color gamut; a blend coefficient selector selecting a first blend coefficient when hue and saturation belong to a first color domain range, a second blend coefficient, having a reduced synthesis ratio of second image data compared with the first blend coefficient, when hue and saturation belong to a second color domain range, and a third blend coefficient, between the first and second blend coefficients, when hue and saturation belong to a color domain between the first color domain range and the second color domain range; and a color synthesis unit synthesizing first image data and second image data according to the decided blend coefficient.

Abstract translation: 图像处理器包括将输入图像转换为第一色域的线性第一图像数据的输入转换器; 将第一图像数据转换成表示比第一色域窄的第二色域的第二图像数据的色域转换器; 当色调和饱和度属于第二色域范围时，当色相和饱和度属于第一色域范围时，混合系数选择器选择第一混合系数，第二混合系数，具有与第一混合系数相比第二图像数据的合成比降低的第二共混系数; 当色相和饱和度属于第一色域范围和第二色域范围之间的色域时，第一和第二混合系数之间的第三混合系数; 以及颜色合成单元，根据所确定的混合系数合成第一图像数据和第二图像数据。