公开(公告)号：US20150138145A1

公开(公告)日：2015-05-21

申请号：US14532153

申请日：2014-11-04

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Hee-chang Hwang ,  Yoon-kyung Choi ,  Ki-duk Kim ,  Jong-seon Kim ,  Jong-kang Park

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/0418 ,  G06F3/0416 ,  G06F3/044

Abstract: A touch screen controller, a touch screen system, and a display apparatus including the same includes a touch data generator that supplies a first transmission signal to a first sensing line, supplies a second transmission signal to a second sensing line adjacent to the first sensing line, receives differential touch signals from the first and second sensing lines, and performs an arithmetic operation on the differential touch signals to generate a single-ended touch signal, and a control logic that calculates touch coordinates by using the single-ended touch signal from the touch data generator. At least one of phases and frequencies of the first and second transmission signals have different values.

Abstract translation: 触摸屏控制器，触摸屏系统和包括该触摸屏系统的显示装置包括将第一传输信号提供给第一传感线的触摸数据发生器，将第二传输信号提供给与第一传感线相邻的第二传感线 接收来自第一和第二感测线的差分触摸信号，并对差分触摸信号执行算术运算以产生单端触摸信号;以及控制逻辑，其通过使用来自该触摸信号的单端触摸信号来计算触摸坐标 触摸数据发生器。 第一和第二传输信号的相位和频率中的至少一个具有不同的值。

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

IPC: G06K9/00 ,  H01L27/32 ,  G06F3/044

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.

公开(公告)号：US20180012069A1

公开(公告)日：2018-01-11

申请号：US15638660

申请日：2017-06-30

Applicant: Samsung Electronics Co., Ltd.

Inventor： Dae-young Chung ,  Hee-chang Hwang ,  Kun-yong Yoon ,  Woon-bae Kim ,  Bum-suk Kim ,  Min Jang ,  Min-chul Lee ,  Jung-woo Kim

IPC: G06K9/00

CPC classification number: G06K9/00563 ,  A61B5/1172 ,  G06K9/00013 ,  G06K9/0004 ,  G06K9/00046 ,  G06K9/00053 ,  G06K9/00087 ,  G06K9/0012 ,  G06K9/2036 ,  G06K9/24

Abstract: At least some example embodiments provide a fingerprint sensor, a fingerprint sensor package, and a fingerprint sensing system using light sources of a display panel. The fingerprint sensor includes an image sensor including a plurality of sensor pixels, the sensor pixels configured to sense light reflected by a fingerprint and generate image information corresponding to the fingerprint and a pinhole mask defining a plurality of pinholes, wherein each of the pinholes forms a focus for transmitting the light reflected by the fingerprint to the image sensor, wherein light is emitted from a plurality of organic light-emitting diodes (OLEDs) and is reflected by the fingerprint.